34results about How to "Uniform adsorption capacity" patented technology

The invention discloses a compound type pneumatic non-contact gas claw which comprises a gas claw casing and a shunting ring, wherein the gas claw casing is provided with a downwardly opening cylinder cavity; a workpiece grabbing through hole is formed at the center of the shunting ring; the gas claw casing includes a gas claw top cover, a gas claw middle part and a bottom sucking disc, which are detachably and hermetically connected; the gas claw top cover is provided with a gas inlet communicated with the cylinder cavity; the gas claw middle part is provided with a rotary reflux cavity forming the main body section of the cylinder cavity; the bottom sucking disc is provided with a circular sucking disc concave cavity communicated with the cylinder cavity; the shunting ring is in clearance sleeve in the circular sucking disc concave cavity; an annular clearance gas injection channel is defined by the back side of the shunting ring and the cambered curve of the bottom wall of the circular sucking disc concave cavity; three groups of small pressurizing holes surrounding the grabbing through hole are uniformly distributed on the shunting ring in an equal-radian manner; a workpiece to be grabbed is suspended in front of the grabbing through hole to achieve the dynamic balance and the non-contact grabbing and handing functions under the combined action of negative pressure generated at the high pressure gas rotary reflux center, positive pressure generated in high pressure gas overflowing out of the annular clearance gas injection channel and the self-weight of the workpiece.

The invention belongs to the technical field of vacuum adsorption, and particularly relates to a porous vacuum chuck and a preparation method thereof. The porous vacuum chuck comprises a porous adsorption part, a sealing layer and a base, wherein the porous adsorption part is fixed on the base through the sealing layer, and a penetrating through hole is formed in the middle of the base; the porousadsorption part is made of one or more of aluminum oxides, zirconium oxides, zirconia toughened alumina (ZTA), silicon carbides, silicon nitrides, zinc oxides, titanium oxides, stannic oxides, hydroxyapatite or quartz; the sealing layer is made of ceramic, glass or resin, and the thickness of the sealing layer is 10-500 microns; and the base is made of aluminum oxides, zirconium oxides, ZTA, silicon carbides, silicon nitrides, quartz, stainless steel, titanium alloys or aluminum alloys. The porous vacuum chuck is small in flow loss, stable adsorption of an adsorbate can be achieved under thecondition that the adsorbate cannot completely cover an adsorption area, and product defects such as sunken deformation cannot be caused.

The invention discloses a money bundle transfer assembly matched with a money binder. The money bundle transfer assembly comprises a money bundle stacking mechanism, a paper feeding mechanism and the two-barred-cross money binder, and the money bundle stacking mechanism, the paper feeding mechanism and the two-barred-cross money binder are sequentially arranged on one side of a money bundle conveyor belt. A moving platform is arranged between the money bundle stacking mechanism and the paper feeding mechanism, a steering walking mechanism is arranged below the moving platform and moves perpendicular to the axis of the money bundle stacking mechanism and the axis the paper feeding mechanism, and a mechanical hand matched with the moving platform is used for lifting and transferring money bundle stacks into the two-barred-cross money binder. Assembly lines which are distributed in parallel are adopted, the structure is compact, and occupied space is small.

The invention relates to a clamp, and specifically discloses a vacuum adsorption clamp. The vacuum adsorption clamp comprises a fixed plate and a workpiece adsorption block arranged on the fixed plate, wherein the upper surface of the workpiece adsorption block is used for adsorbing a sheet-shaped workpiece; a plurality of first air holes arranged in the form of an annular structure are formed ina position close to the edge of the outer side of the upper surface of the workpiece adsorption block, on the upper surface, the first air holes are blind holes, a plurality of second air holes penetrating through the upper surface and the lower surface of the workpiece adsorption block are formed in the inner side of the annular structure encircled by the plurality of first air holes, and each first air hole communicates with the adjacent second air hole through a ventilation groove; and a sealing cavity communicating with the second air holes is formed in the fixed plate, and air extractionholes communicating with the sealing cavity are formed in the outer side of the fixed plate. According to the vacuum adsorption clamp, the uniform overall adsorption force of the sheet-shaped workpiece can be achieved, the generation of volcanic vents, ring marks and jig marks is avoided, and the edge of the sheet-shaped workpiece can further be prevented from being tilted, so that the rigidity ofthe edge of the vacuum adsorption clamp is guaranteed.

The invention provides a technique with which it is possible to suppress the generation of dust at the time of attracting and detaching an object to be attracted by reducing attraction force on a surface that comes into contact with the object to be attracted, and to control the attraction force of an attraction device so as to be uniform. This attraction device comprises: a main body part 50 including, in a dielectric, a pair of attraction electrodes 11, 12 of opposite polarities for attracting and holding a substrate 10; and electroconductive films 51 each arranged in a section on the attraction side of the main body part 50 with respect to the pair of attraction electrodes 11, 12, the electroconductive films being arranged so as to extend across an anode 11a and a cathode 11b of the paired attraction electrode 11 and an anode 12a and a cathode 12b of the paired attraction electrode 12, respectively.

The invention relates to a rotary type workpiece adsorption platform which is characterized by comprising a mounting bracket, a fixed plate, a platform body, an air pipe joint and a rotating shaft, wherein the rear side edge of the adsorption platform is pivoted with the lower side edge of the fixed plate through the rotating shaft; the fixed plate is fixedly mounted on the mounting bracket; a cavity is formed in the platform body; air holes communicating with the cavity are formed in the upper surface of the platform body; an air suction opening communicating with the cavity is formed in the platform body; the air pipe joint is mounted at the air suction opening; and the air pipe joint is used for connecting an external vacuum generator. The rotary type workpiece adsorption platform is simple, compact and reasonable in structure, uniform in adsorption force and stable in adsorption, cannot damage a workpeice, can realize rotatable adjustment, and is suitable for switching of space stations.

The invention discloses an automatic photoetching plate feeding and taking device of a chip photoetching machine. The automatic photoetching plate feeding and taking device comprises a machine base. A lifting base is arranged on the machine base in a vertical lifting manner and provided with a horizontal base. The horizontal base is provided with a material taking mechanism. The material taking mechanism comprises a support. A first absorbing plate and a second absorbing plate are arranged on the support in a sliding manner and are the same in sliding direction, the sliding direction of the first absorbing plate and the sliding direction of the second absorbing plate are perpendicular to the sliding direction of the horizontal base, and the support is provided with a synchronous opening and closing mechanism. Each of the first absorbing plate and the second absorbing plate is provided with a negative pressure suction port. The negative pressure suction ports correspond to the edge of the lower plate face of a photoetching plate. The first absorbing plate or the second absorbing plate is driven by an opening and closing power device. The opposite sides of the first absorbing plate and the second absorbing plate are provided with avoiding concave openings. The automatic feeding and taking device enters from the two sides of the photoetching plate through opening and closing of the first absorbing plate and the second absorbing plate and directly adsorbs the photoetching plate; and the first absorbing plate and the second absorbing plate do not make contact with a plate film, so that plate film abrasion or tearing is avoided.

The invention provides a double-sided switching vacuum adsorption plate comprising a plate body. The plate body comprises a first contact plate and a second contact plate which are oppositely arrangedon the front face and the back face. The plate body is provided with a cavity between the first contact plate and the second contact plate. The first contact plate and the second contact plate are evenly provided with five groups of large adsorption holes at the center of the plate body and a plurality of evenly distributed small adsorption holes. An adsorption switching device is fixed into thecavity. The first contact plate and the second contact plate are provided with annular grooves at the positions corresponding to the large adsorption holes. Conical suction cups are fixed to the innerwalls of the large adsorption holes in a sealed manner. When the outer walls of the conical suction cups are completely attached to the inner walls of the grooves, the inner walls of the conical suction cups completely coincide with the outer surface of the first contact plate and the second contact plate. According to the double-sided switching vacuum adsorption plate, in the whole grabbing process of the workpiece, the manner of acting on the workpiece is to make soft contact with the workpiece first of fall and then increase adsorption force, so that the workpiece can be effectively protected and prevented from being damaged; and meanwhile, the adsorption effect is improved, production quality control is guaranteed, and the production efficiency is improved.

The invention discloses a casting sand box comprising a sand box bottom, a sand box wall and an upper air exhaust lifting and pressing lever, wherein a sand box body consisting of the sand box bottom, the sand box wall and the upper air exhaust lifting and pressing lever is halfpace-shaped; the upper air exhaust lifting and pressing lever consists of transverse air levers and vertical air levers of an air duct, which are transversely and vertically arranged inside and are communicated with an upper air exhaust pipe; each transverse air lever comprises a main transverse air lever and a secondary transverse air lever; each secondary transverse air level is arranged at the outer side of the main transverse air lever; each vertical air lever comprises a main vertical air lever and secondary vertical air levers; and the secondary vertical air levers are uniformly arranged at the both sides of each main vertical air lever. The area at the upper part of the casting sand box provided by the invention is increased, so that the quantity of sands is increased; and when the sands are rammed, the gravity of the sands generates an inward horizontal component under the effect of the wall of the sand box, so that the sands are filled in a lateral hole of a casting, and the quantity of defective goods can be greatly reduced. The casting sand box provided by the invention has more uniform adsorption force on molding sands by upper air exhaust lifting and pressing lever, is conductive to improving the working efficiency, and can be used for greatly reducing the crush rate, and ensuring the product quality.

The invention discloses a photolithography plate automatic feeding and retrieving device of a chip photolithography machine, which comprises a machine base, a lifting seat is installed on the machine base for vertical lifting, a horizontal base is installed on the lifting seat, and a horizontal base is installed on the horizontal base. The material retrieving mechanism, the material retrieving mechanism includes a support, and the first suction plate and the second suction plate are slidably installed on the support. The sliding direction of the first suction plate and the second suction plate is the same and perpendicular to the sliding direction of the horizontal base. The support is provided with a synchronous opening and closing mechanism, and both the first suction plate and the second suction plate are provided with a negative pressure suction port, which corresponds to the edge of the lower plate surface of the photolithography plate, and the first suction plate Or the second suction plate is driven by the opening and closing power device, and the opposite sides of the first suction plate and the second suction plate are provided with avoidance notches. The automatic feeding and retrieving device enters and directly absorbs the photoresist plate from both sides of the photoresist plate through the opening and closing of the first suction plate and the second suction plate, and the first suction plate and the second suction plate do not contact the plate film, thereby Abrasion or tearing of the plate film is avoided.

The invention relates to improvement on working platforms in material processing, in particular to a vacuum adsorption platform based on a guide plate. The vacuum adsorption platform based on the guide plate is characterized by comprising a base plate (1) and a baffle plate (2) fixed on the base plate (1), wherein the base plate (1) is provided with cross main airflow passages (3), a plurality of branch airflow passages (4) and a suction opening corresponding to the baffle plate (2) in position, the baffle plate (2) is positioned at a cross point of the main airflow passages (3), and the main airflow passages (3) are communicated with the branch airflow passages (4). The vacuum adsorption platform based on the guide plate has the advantages of original high strength, original high flatness, low flowing resistance, uniform adsorption force, large effective adsorption area and lower cost.

The invention discloses a banknote handle transfer assembly matched with a banknote binding machine. A mobile platform is set between the mechanism and the paper feeding mechanism, and a steering mechanism perpendicular to the axis of the banknote stacking mechanism and the paper feeding mechanism is set under the mobile platform, and the banknote stack is lifted and conveyed by the manipulator matched with the mobile platform. into the double cross binder. The present invention adopts the assembly lines arranged in parallel, has a compact structure and occupies less space.

The invention discloses a polar membrane material with adsorptivity, a unidirectional check valve and an air bag. The polar membrane with adsorptivity forming the air bag and the unidirectional check valve is prepared by compositing a self-adhesive layer on one side of a PE substrate, and the self-adhesive layer is made of EVA added with a maleic-anhydride-grafted PE. The material is good in adsorption uniformity, and can improve airtight effect of the conventional unidirectional check valves.

The invention provides an automatic skew detection silicon chip series welding feeding device which comprises a support frame, a horizontal moving guiderail fixed at the top end of the support frame, a horizontal position adjustment motor installed at the end part of the horizontal moving guiderail, a slide platform installed on the horizontal moving guiderail and moving in the horizontal direction, a vertical moving guiderail fixed on the slide platform, a vertical position adjustment motor installed at the rear end of the vertical moving guiderail, a cylinder installed on the vertical moving guiderail and moving along the vertical moving guiderail vertically, a grip support plate installed at an expansion end of the cylinder, an angle position adjustment motor installed on the support plate, and a negative pressure retraction grip connected on an output shaft of the angle position adjustment motor in a sleeving manner, and the output shaft of the angle position adjustment motor faces downwards. The automatic skew detection silicon chip series welding feeding device automatically feeds a silicon chip and automatically rectifies the position, the adjustment and correction of the silicon chip in the horizontal, vertical and angular positions of a horizontal plane is implemented through three axes association in the moving process of the silicon chip, and the accuracy is greatly improved.

The invention discloses a vacuum hole bracket for an LED wafer automatic sorting machine. The vacuum hole bracket comprises a vacuum bracket body, wherein a vacuum hole bracket sealing cover is connected below the vacuum bracket body, and a gap is formed between the vacuum bracket body and the vacuum hole bracket sealing cover to form a negative pressure cavity; and the vacuum hole bracket is provided with an upper surface and a lower surface, the upper surface is a plane, the lower surface is a plane, a plurality of micropores are distributed in the lower surface of the vacuum hole bracket, the multiple micropores are arranged in a hexagonal shape, the arrangement shape of the micropores is matched with the shape of a wafer, the negative pressure cavity generates larger adsorption force by the negative pressure through the micropores, a blue film is adsorbed on the upper surface of the vacuum hole bracket, and the adsorption force generated by the plurality of micropores is uniform, so that the blue film is not deformed, and the flatness of the blue film of the welding wafer is guaranteed.

The invention belongs to the technical field of fire-fighting equipment, specifically a suspended intelligent fire-extinguishing device based on an unmanned aerial vehicle, including a control box, a propeller, a frame, a mounting plate and a support frame; also includes a column, a drive unit, a cutting unit, Water spray unit, suction cup #1 and air tank. Through the mutual cooperation between the drive unit, cutting unit and water spray unit, on the one hand, after the cutting unit cuts the glass, the drone drives the fire extinguishing device into the room, and the fire extinguishing device extinguishes the fire at the fire point to avoid glass factors affecting the fire extinguishing efficiency. This improves the fire extinguishing efficiency based on the unmanned aerial vehicle fire extinguishing device; on the other hand, the drive unit generates gas during the drive propeller movement, and the gas acts on the fire extinguishing device as a power source, reducing the number of external power equipment and reducing unmanned The pressure of the drone, thereby improving the fire extinguishing efficiency based on the drone fire extinguishing device.

The invention discloses a cotton coagulation device with an even conveying function. The device comprises a cotton inlet pipe, a cotton outlet pipe is arranged at the lower side of the cotton inlet pipe, and a cotton coagulation box is arranged at the right side of the cotton inlet pipe and the cotton outlet pipe; a cotton inlet conveying belt is installed in the cotton inlet pipe, a cotton conveying wheel box is installed between the cotton inlet pipe and the cotton coagulation box, and a cotton conveying wheel is installed in the cotton conveying wheel box; a cotton outlet conveying belt isinstalled in the cotton outlet pipe, a cotton scraping wheel box is arranged between the cotton outlet pipe and the cotton coagulation box, and a cotton scraping wheel is installed in the cotton scraping wheel box; a cotton coagulation dust cage is arranged in the cotton coagulation box, and an air pipe is arranged in the cotton coagulation dust cage. The cotton coagulation device is simple in structure, stable in operation and capable of achieving a good cotton coagulation effect and even conveying, and blocking does not easily occur.

The invention discloses an electrostatic chuck device and a degumming machine. An electrostatic chuck device is characterized in that: an electrostatic chuck is provided with a placement surface, and the placement surface includes: a plurality of circumferential air passages , forming a concentric multi-layer structure along the radial direction; a plurality of radial air passages, which communicate with the air hole in the center of the placement surface and the peripheral air passage in the outermost layer, and are blocked from the rest of the peripheral air passages; a plurality of return air passages, each of the return air passages communicates with all the circumferential air passages between any two adjacent radial air passages, and each of the return air passages faces one end of the air hole It communicates with the innermost circumferential air passage, and is blocked from the air hole; wherein, the air flow is blown out from the air hole and flows to the outermost circumferential air passage along the plurality of radial air passages, and then flows to the outermost circumferential air passage. It flows to the return air passage, and then flows to the circumferential air passages on both sides of the return air passage. The invention solves the problems of large adsorption force in the middle and small adsorption force of the edge of the electrostatic chuck.