31results about How to "Prevent left and right shift" patented technology

The invention relates to the technical field of construction machinery, in particular to a novel building material template cleaning device, which comprises a conveying table, a forward rotation cleaning mechanism, a reverse rotation cleaning mechanism, an upper surface flushing mechanism and a lower surface flushing mechanism, wherein the forward rotation cleaning mechanism and the reverse rotation cleaning mechanism are arranged on the conveying table; a building material template is conveyed through the conveying table; the upper surface flushing mechanism is arranged above the building material template; the lower surface flushing mechanism is arranged below the building material template; a sticky matter on the building material template can be effectively cleaned, and a physical means is used for cleaning, so that the chemical pollution is avoided, the cleaning efficiency is improved, and the production cost is reduced.

The invention discloses a carton automatic folding device. The carton automatic folding device is characterized by comprising a left edge folding mechanism, a rear edge folding mechanism, a front edgefolding mechanism and a right edge folding mechanism. The left edge folding mechanism comprises a first support, a first horizontal air cylinder, a first sucker, a first turn-over air cylinder and afirst turn-over pressing plate. The rear edge folding mechanism comprises a second support, a second horizontal air cylinder, a second sucker, a second turn-over air cylinder and a second turn-over pressing plate. The front edge folding mechanism comprises a third support, a third turn-over air cylinder and a third turn-over pressing plate. The right edge folding mechanism comprises a fourth support, a fourth turn-over air cylinder and a fourth turn-over pressing plate. Automatic folding of four edges at the bottom of a carton can be achieved, and production efficiency can be improved. In addition, the invention further discloses a carton sticking machine.

The invention relates to the field of gluing equipment and specifically to a gluing machine suitable for bamboo and wood products. The abovementioned technical aim of the invention is realized by the following technical solution: a gluing machine suitable for bamboo and wood products comprises a rack, a gluing device arranged on the rack for gluing the material, and a glue storage device for supplying glue stock to the gluing device. The gluing device comprises an upper glue barrel and a lower glue barrel. The upper and lower glue barrels are connected on the rack and rotate with the action of an external motor. The lower glue barrel is arranged directly under the vertical position of the upper glue barrel. The upper glue barrel has the same size as the lower glue barrel. The outer surface is sleeved with a glue contact layer increasing the friction force with glue. The aim of the invention is to provide a gluing machine suitable for bamboo and wood products. The machine has a simple structure and is beneficial to implement. The gluing amount is adjustable. The bamboo and wood products placed on the machine have strong stability. Both sides of the products can be glued uniformly.

The invention relates to a bending device for recycling of a medical syringe needle, and belongs to the field of medical waste disposal. The bending device comprises a cannula, the cannula is internally matched with a telescopic rod, a U-shaped frame is fixed to the upper end of the telescopic rod, a lower shaft is fixed to the U-shaped frame, a movable wheel is coaxially mounted on the lower shaft, a bracket is fixed to the upper end of the cannula, a bearing is fixed to the upper end of the bracket, an upper shaft is fixed into the bearing, a fixed wheel is coaxially fixed to the upper shaft, the upper shaft and the lower shaft are parallel, the wheel surfaces of the movable wheel and the fixed wheel are tangent to each other, a lower groove is formed in the wheel surface of the movablewheel, the lower groove surrounds the movable wheel by a circle, an upper groove is formed in the wheel surface of the fixed wheel, the upper groove surrounds the fixed wheel by a circle, a rotary disc is coaxially fixed to the end of the upper shaft, a vertical plate is fixed to the circumferential face of the fixed wheel, a positioning hole is formed in the vertical plate, the diameter of the positioning hole is smaller than the diameter of a needle pin, when the vertical plate makes contact with the movable wheel, the fixed wheel is limited from rotating, and the common tangent line of theupper groove and the lower groove passes through the circle center of the positioning hole. A needle stem part of the needle can be bent, a needle stem is not bent to be broken, and meanwhile the bending position of the needle stem can be further adjusted so that the needle can be manufactured into other objects to be utilized.

The invention relates to the technical field of sprayers, in particular to an automatic sprayer. The automatic sprayer comprises an equipment frame, a transmission mechanism, a guide mechanism and a spraying mechanism, wherein the transmission mechanism, the guide mechanism and the spraying mechanism are mounted on the equipment frame; the transmission mechanism and the guide mechanism are arranged in a staggered mode; the spraying mechanism is mounted on the guide mechanism; the equipment frame comprises a frame, foot wheels, a machine enclosure, a material tube, a flange, branch tubes, a rubber hose and a charge hole, wherein the four corners of the lower side of the frame are equipped with the foot wheels; and the upper side of the frame is fixedly connected to the machine enclosure. The automatic sprayer disclosed by the invention is convenient for spraying operation of the spraying mechanism, and can guarantee stable board transmission; and spacing between clamping rollers and spacing between barrel sleeves can be effectively regulated, so that conveying requirements of different boards can be met.

The invention relates to the field of drainage, in particular to a buoyancy inspection shaft based on the internet of things. The buoyancy inspection shaft comprises an inspection shaft base, an inspection shaft cover, a retractable annular filter screen and an internet of things unit; the internet of things unit comprises a power supply device, a liquid level meter, flow meters, a collector and an internet of things gateway; the liquid level meter is disposed on the bottom side of the inspection shaft cover, and the flow meters are disposed on the inner side of the inner edge; the collector and the internet of things gateway are both disposed on the inner side of an inner ring; the power supply device is used for system power supply; the liquid level meter is used for detecting the depthof accumulated water; the flow meters are used for detecting the instantaneous flow rate of drained water; the collector is used for receiving detection values output by the liquid level meter and theflow meters and sending the detection values to the internet of things gateway; the internet of thing gateway is used for uploading the detection values of the collector to a remote server. The buoyancy inspection shaft is high in drainage performance and convenient in management.

The invention discloses a hanging rack for mounting an intelligent blackboard, and relates to the technical field of intelligent blackboard devices. The hanging rack comprises a mounting base mountedon a wall and a fixed beam detachably mounted on the mounting base; the upper surface and the lower surface of the fixed beam are each provided with a T-shaped sliding rail A, the outer surface of thefixed beam is provided with a T-shaped sliding rail B, the mounting base is provided with a T-shaped sliding rail C matched with the fixed beam, the inner side face of the fixed beam is provided witha T-shaped sliding groove, and the two ends of the T-shaped sliding rail C are each provided with a fixed block in a matched mode. A supporting assembly is arranged on the T-shaped sliding rail A located on the lower surface of the fixed beam, a locking assembly is arranged on the T-shaped sliding rail A located on the upper surface of the fixed beam, and the two ends of the T-shaped sliding railB are each provided with a clamping piece in a matched mode; an intelligent blackboard is fixed to the hanging rack in a matched mode. By means of the mounting base, the fixing beam, the supporting assembly, the locking assembly and the clamping piece, the same hanging rack is suitable for mounting of intelligent blackboards of various different sizes, wherein the supporting assembly, the lockingassembly and the clamping piece are mounted on the fixing beam.

This invention discloses a preparation method of shelf type quick greening equipment on rock. The shelf is wedge box type, elliptical gap is opened at bottom part of box front face plate. The shelf of the box is inclined cling to rack wall, steel bar is set along the shelf bottom inclined plane, bottom end of the steel bar is inserted into the rack wall under the shelf, fertilizer, molding moisture agent and soil are filled in the sphenoid box shelf which fixed on rack wall, and plant is planted in it. Wood, bamboo and plastic product is used in this invention, the weight is light, and the fix is convenient, safe and reliable under function of the fixed steel bar, construction technique is simple. Accident will not happened even the shelf is dissimilated and dropped off because of the root of aloe can easily insert rack cave and self fix the whole plant. The advantages are quick greening, and longtime greening effect.

The invention particularly relates to a server sliding rail with a fast installation function. The server sliding rail with the fast installation function comprises a positioning block; a front baffle and a protective shell are arranged at the front end face of the positioning block; the front baffle is provided with a positioning post; a second spring is connected at one end of the positioning post; the second spring supports against the inner wall of the protective shell; an opening is formed in the outer surface of the positioning block; a side plate is arranged at the opening; one end of the side plate extends to the interior of the opening; a first spring is also arranged at the front baffle; the first spring supports against the extension part of the side plate; a toggling clamping part is arranged at the other end of the side plate; a sliding rail body is arranged at one end of the positioning block; the sliding rail body comprises an inner rail, a middle rail and an outer rail which are connected in sequence; the sliding rail body further comprises an outer shell; a sliding rack connected with the outer rail is arranged in the outer shell; an elastic part is arranged in the outer shell; a spring is arranged between the elastic part and the outer shell; one end of the spring supports against the middle position of the elastic part while the other end of the spring supports against the inner bottom surface of the outer shell; and the elastic part supports against the bottom surface of the sliding frame. The server sliding rail with the fast installation function has the beneficial effect of high installation efficiency as the sliding rail body can be rapidly and fixedly arranged on a front positioning frame body by utilization of a positioning pin and second spring combined structure and cooperation of the elastic part.

The invention relates to an adjustable observation window, and belongs to the technical field of equipment. The adjustable observation window comprises a double-layer housing of the observation window, synthetic glass fixed in the double-layer housing, a right-angled prism that can rotate around the axis, and a right-angled prism adjustable support; and the right-angled prism is fixed on the right-angled prism adjustable support, and the right-angled prism adjustable support is arranged on the double-layer housing of the observation window. An operator can observe a front bottom object image in the orthophoria angle of the eyes through the adjustable observation window, the maximal visual scope is 3 times that of an original equipment observation window, and blind observation areas in thebottom of equipment are reduced greatly. The plastic housing not difficulty in perforating can be easily mounted on the original observation window, so that the cost is reduced and power-off time is shortened. The adjustable observation window in of embedded installation design, and during installation, rainwater can be avoided by only using glass cement for sealing a slit between a glass and a cabinet door.

The invention relates to puncture equipment for hepatobiliary department. The equipment is characterized in that the left end of a puncture needle sleeve is provided with a tip part, the right end of the puncture needle sleeve is connected with a needle sleeve connector, the needle sleeve connector is hollow, a flow guide pipe is arranged below the end, connected with the puncture needle sleeve, of the needle sleeve connector, a through hole is formed in the center of the other end of the needle sleeve connector, an isolation plug is arranged in the needle sleeve connector, a puncture needle core is positioned inside the puncture needle sleeve, the left end of the puncture needle core is a tip end, and is matched with the tip part of the puncture needle sleeve, the right end of the puncture needle core penetrates through the isolation plug and the through hole in sequence, is located outside the needle sleeve connector and is connected with a needle core connector, a limiting piece comprises a bushing, a fastening nut and arc-shaped rubber limiting blocks, the puncture needle sleeve is sleeved with the bushing in a sliding mode, threads are arranged on the outer surface of the bushing, the bushing is sleeved with the fastening nut in a threaded mode, the multiple arc-shaped rubber limiting blocks are annularly and fixedly arranged at the right end of the bushing, and the thickness of the arc-shaped rubber limiting block is gradually increased outwards from the connecting end of the arc-shaped rubber limiting block and the bushing, According to the invention, the puncture equipment has the advantages of being reasonable in structure, convenient to use and high in puncture accuracy.

The invention discloses a steel frame template anti-displacement apparatus which is intended for positioning of a steel frame between a first side mold and a second side mold which constitute an included angle. The apparatus includes a positioning clamp which includes a clamping part of a frame back ridge which is clamped to the first side mold and an abut against part which abuts against the second side mold, and the abut against part and the clamping part are in fixed connection; a drawing rod body which is fixed to the abut against part; a fixing part which is movably installed on the drawing rod body and is fixed to the drawing rod body through a fixing structure; the fixing part and the abut against part constitute a positioning space which is intended for fixing the second side mold. According to the invention, the apparatus uses the positioning clamp to clamp and fix the frame back ridge of the first side mold, and uses the drawing rod body and the fixing body to connect and fix the second side mold of the steel frame template, so that the first side mold and the second side mold of the steel frame template which constitute an included angle are fixed. The apparatus has simple structure, is easy to use, and has high turnover rate.

The invention discloses a limiting piece for a push-pull device. The limiting piece comprises a first limiting piece, a second limiting piece, a third limiting piece, a fourth limiting piece and a fifth limiting piece; the first limiting piece is fixed to the surface of the outer surface of a drawer through a bolt and a nut, the second limiting piece is located not eh surface of the inner side ofa box, a bearing is installed on the second limiting piece, a gasket is installed between the bearing and the second limiting piece, soft rubber pads are installed at the two side end faces of the third limiting piece, the surface, inside a box cover, of the fourth limiting piece is located at one side of the third limiting piece, a clamping block is arranged on the fourth limiting piece, fixing holes are formed in the portions, on the two sides of the clamping block, of the fourth limiting piece, the fifth limiting piece is installed on the surface outside the box, a clamping block is arranged at the bottom end of the fifth limiting piece, and the surface of the side, on the fifth limiting piece, of the bearing is provided with a nut. The limiting piece has the advantage that the phenomenon that the drawer tends to move out of the box when the drawer is pulled out in the moving or transporting process can be avoided.

The present invention provides a flexible flat cable and film transistor liquid crystal display panel driving structure. The flexible flat cable comprises a body and terminals arranged at both ends of the body; the end part of each terminal away from the body is provided with a clamping structure; the clamping structure includes an inner side straight edge facing the inner side of the end part of the terminal, an outer side edge facing the outer side of the end part and a bottom edge that connect the inner side straight edge and the outer side edge. The bottom edge is connected to the end part of the terminal. The beneficial effect of the invention lies in the extra clamping structures on a flexible flat cable. The inner side straight edge of a clamping structure is utilized to have a flexible flat cable fastened so as to prevent left-right displacement, thus preventing the flexible flat cable plug from crooked insertion and reducing the possibility that a PCB is burned due to the crooked insertion of the flexible flat cable.

The invention discloses a steel frame template anti-displacement apparatus which is intended for positioning of a steel frame between a first side mold and a second side mold which constitute an included angle. The apparatus includes a positioning clamp which includes a clamping part of a frame back ridge which is clamped to the first side mold and an abut against part which abuts against the second side mold, and the abut against part and the clamping part are in fixed connection; a drawing rod body which is fixed to the abut against part; a fixing part which is movably installed on the drawing rod body and is fixed to the drawing rod body through a fixing structure; the fixing part and the abut against part constitute a positioning space which is intended for fixing the second side mold. According to the invention, the apparatus uses the positioning clamp to clamp and fix the frame back ridge of the first side mold, and uses the drawing rod body and the fixing body to connect and fix the second side mold of the steel frame template, so that the first side mold and the second side mold of the steel frame template which constitute an included angle are fixed. The apparatus has simple structure, is easy to use, and has high turnover rate.

The invention discloses a kinematic pair joint gap eliminating mechanism for a feeding robot and an implementation method of the kinematic pair joint gap eliminating mechanism. A compensation assemblyis configured at the bottom end of a swing arm and used for compensating for abrasion generated after a swing arm runs for a long time, in this way, the swing arm and a basic arm can run stably for along time; and the inclined face of a compensation plate makes contact with the basic arm, original direct contact between the swing arm and the basic arm is replaced by installation of the compensation plate, and a first compensation structure jacks up the compensation plate to provide transverse compensation, so that left-right displacement possibly occurring to the swing arm is avoided, and the situation that the swing arm can rub against a transverse circular shaft to cause abrasion is avoided through radial compensation provided by a second compensation structure. Through the special design of the compensation plate, the first compensation structure and the second compensation structure, displacement of the swing arm after long-time operation can be avoided, a kinematic pair joint gap is effectively eliminated, and the operation stability and durability of equipment are greatly improved; and meanwhile the compensation assembly is arranged in an inner cavity of the equipment, sothat normal operation of a kinematic pair joint is not affected.

The invention discloses a novel endoscope disinfection sterilization nursing box. The novel endoscope disinfection sterilization nursing box comprises a disinfection box, a top cover is arranged at the top of the disinfection box, and an upper cleaning structure is arranged in the center of the top of the top cover in a penetrating mode. According to the novel endoscope disinfection sterilizationnursing box, through cooperative use of the upper cleaning structure, a power structure, a placement structure and an auxiliary cleaning structure, an endoscope continuously rotates in an inner cavityof the disinfection box, and the surface of the endoscope is continuously scoured and cleaned through the effect generated when disinfectant flows and the force generated when a second cleaning brushand a first cleaning brush rotate, so that the disinfection effect of the endoscope is greatly improved. The novel endoscope disinfection sterilization nursing box has the advantages that the local disinfection effect is good, in the actual use process, the surface of the endoscope is cleaned and disinfectant through a physical method and by assisting the disinfectant, meanwhile, the cleaning anddisinfection speed is increased, the operation is easy, the manufacturing cost is low, the application range is wide, the infection risk of a patient is reduced, and the use by a user is facilitated.

The invention discloses a straight walking type plate shearing machine, which belongs to the field of machining equipment. The straight walking type plate shearing machine comprises a shearing machine and a feeding device, wherein the feeding device is matched with the shearing machine, a straight walking mechanism is arranged at the bottom of the shearing machine, and the straight walking mechanism comprises a switch rail, a flat rail and a plurality of groups of roller assemblies; double inclined planes are formed on both sides of the upper part of the switch rail, the distance of the top ends of the double inclined planes is less than that of the bottom ends of the double inclined planes, and the center line of the flat rail is parallel to that of the switch rail; and the roller assemblies include concave rollers which are matched with the switch rail and flat rollers which are matched with the flat rail, and grooves which are matched with the upper part of the switch rail are formed in the surfaces of the concave rollers. The straight walking type plate shearing machine has the advantages of low cost and high practicability, the problem of incapability of straight walking of an existing walking type shearing machine is effectively solved, the structural design is optimized, the straight walking of the walking type shearing machine is realized by adopting a simple structure, and the plate shearing accuracy is guaranteed.

The invention discloses a fixable aseptic drying box for a stilbene yellow peptide injection solution bottle, which comprises a hollow box body (1) and an operation interface (7), wherein both an input opening (2) and an air-tight door (3) matched with the input opening (2) are arranged on one side of the box body (1); a plurality of hooks (6) and a plurality of locking chains (5) are mounted on the two sides, close to the input opening (2), of the box body (1) respectively; two grooves (4) are formed in the bottom of the box body; the operation interface (7) is mounted on the outer wall, close to the input opening (2), of the box body (1). Working personnel can push a sterilization frame or a sterilization vehicle into the aseptic drying box or stretch the aseptic drying box conveniently due to the formed grooves, so that the labor intensity of the working personnel is lowered, the manpower cost is reduced, and the sterilization drying efficiency of the stilbene yellow peptide injection solution bottle is improved; the fixing position can be provided for the sterilization frame or the sterilization vehicle, so that transverse motion of the sterilization frame or the sterilization vehicle is prevented; meanwhile, the problem that the air-tight door is extruded due to sliding of the sterilization frame or the sterilization vehicle, so that the air-tight door is damaged is solved due to the arrangement of the hooks and the locking chains.

The invention belongs to the technical field of cloth production, and particularly relates to a warp knitting machine cloth supporting mechanism. The warp knitting machine cloth supporting mechanism comprises a fixed partition plate and a feeding roller set fixed to one side of the fixed partition plate; the side wall of the fixed partition plate is rotationally connected with an auxiliary pressing mechanism; the auxiliary pressing mechanism comprises a first pressing mechanism and a second pressing mechanism, and the first pressing mechanism and the second pressing mechanism are distributed in the vertical direction; the surfaces of pressing rollers are provided with pressing grooves, and the outer walls of limiting rollers are fixedly connected with pressing rings matched with the pressing grooves; the pressing rollers and the limiting rollers of the first pressing mechanism and the second pressing mechanism cooperate with one another, through mutual cooperation of the pressing grooves and the pressing rings, concave-convex cooperation limiting is formed, and cloth is prevented from left-right displacement; and when the force of left-right displacement is large, concave-convex cooperation cannot damage the cloth, the limiting stability of the cloth is improved, the limiting rollers and the pressing rollers for cloth pressing are adjusted, and the drawing force of the cloth isimproved according to the depth of the different pressing grooves.

The invention relates to the field of gluing equipment, in particular to a gluing machine suitable for bamboo and wood products. The above technical purpose of the present invention is achieved by the following technical solutions: a gluing machine suitable for bamboo and wood products, including a frame, a gluing device arranged on the frame for gluing materials, The glue device provides a glue storage device for glue materials. The glue applying device includes an upper rubber cylinder and a lower rubber cylinder that are connected to the frame and rotate under the action of an external motor. The lower rubber cylinder is arranged on the upper rubber cylinder. The upper rubber cylinder and the lower rubber cylinder have the same size, and the outer surface is covered with a rubber contact layer that increases the contact friction with the glue object. The purpose of the present invention is to provide an The gluing machine for finished products has a simple structure, which is convenient for implementation, and the amount of gluing can be adjusted. The bamboo and wood products are placed on the machine with strong stability, and the front and back sides can be glued, and the gluing is uniform.

The invention discloses a supporting rod fixing reinforcing device. The supporting rod fixing reinforcing device is characterized by comprising ejecting iron (1) and a supporting rod fixing frame (2), the ejecting iron (1) is formed by connecting angle iron (1-1) and a U-shaped hoop (1-2) through a bolt, the supporting rod fixing frame (2) is formed by connecting two V-shaped fixing frame bodies (2-1) and four stringed nails (2-2), and the four stringed nails (2-2) are fixedly connected between the two V-shaped fixing frame bodies (2-1) through bolts. The supporting rod fixing reinforcing device is simple in structure, convenient to install, high in mechanical strength, good in stability and wide in application range.

The invention discloses an electroplating die of a connector terminal. The electroplating die comprises a bottom plate, a cover plate and a second cross arm, wherein hole groove plates are arranged atthe upper end of the bottom plate, and the cover plate is arranged at the upper end of the hole groove plates. The electroplating die is reasonable in structure and high in practicability; during work, a first conduction wheel and a second conduction wheel can effectively prevent the connector terminal from moving forwards and backwards during feeding, and a third conduction wheel and a fourth conduction wheel can effectively prevent the connector terminal from moving leftwards and rightwards during feeding, so that the feeding of the connecting terminal is stable and accurate, the workload of debugging of workers is greatly reduced, and the production efficiency is improved; positioning nuts and positioning holes can adjust the height of a second cross arm, so that the application rangeis wider; and a motor drives the connector terminal to stably enter a hole groove at a constant speed through the second conduction wheel, and the situation that the electroplating quality is influenced by collision during manual operation is avoided. The electroplating die is small and exquisite in use, saves the occupied amount of the electroplating solution, improves the quality of the coating,and reduces the consumption of noble metals.

The present invention relates to the technical field of spraying machines, in particular to an automatic spraying machine, comprising an equipment frame, a transmission mechanism, a guiding mechanism and a spraying mechanism, the transmission mechanism, a guiding mechanism and a spraying mechanism are installed on the equipment frame, and the transmission The mechanism and the guide mechanism are misplaced. The spraying mechanism is installed on the guide mechanism. The four corners of the lower side are equipped with casters, and the upper side of the vehicle frame is fixedly connected with the organic casing. The automatic spraying machine of the present invention is convenient for the spraying mechanism to carry out the spraying operation, and can ensure stable plate transmission, and the distance between the nip rollers and the The distance between the sleeves can be adjusted effectively to meet the conveying requirements of different plates.

The invention provides an anti-displacement ceiling connecting structure and a mounting method thereof, and belongs to the technical field of ceiling mounting. The anti-displacement ceiling connecting structure comprises a veneer, a first keel, a supporting piece, a connecting piece and a hanging piece. The hanging piece hangs the supporting piece, the first keel is connected to the veneer, the connecting piece is connected to the supporting piece in a sleeving mode, the first side portion of the first keel is inserted into a first inserting groove, the second side portion of the first keel is inserted into a second inserting groove, thus the first keel is placed on the supporting piece and hung, and then the veneer is hung; and the first side portion of the first keel is fastened to a first base body and the second side portion of the first keel is fastened to a first stop plate through a fixing structure, thus the first keel is fixed, then the veneer is fixed, and the stability of the structure is improved.

The invention belongs to the technical field of cloth production, in particular to a warp knitting machine support mechanism, comprising a fixed partition plate and a feed roller group installed on one side of the fixed partition plate, the side wall of the fixed partition plate is rotatably connected with Auxiliary pressing mechanism, the auxiliary pressing mechanism includes a first pressing mechanism and a second pressing mechanism, the first pressing mechanism and the second pressing mechanism are distributed up and down, and the surface of the pressing roller is provided with A pressure groove, the outer wall of the limiting roller is fixedly connected with a pressing ring that matches the pressure groove; the pressing roller of the first pressing mechanism and the second pressing mechanism cooperate with the limiting roller, through the pressing groove and the pressing The rings cooperate with each other to form a concave-convex cooperation limit to prevent the left and right displacement of the cloth. When the left and right displacement is large, the concave-convex cooperation will not cause damage to the cloth, which improves the stability of the cloth limit. Positioning rollers and pressing rollers increase the stretching force of the cloth according to the depth of different pressing grooves.