35results about How to "Increase or decrease spacing" patented technology

The invention discloses a roller printing machine, belonging to the technical field of printing and dyeing. The roller printing machine comprises a printing machine base, a lead screw, a feed rod, a driving nut, a lower crossbeam, a lower printing roller, an upper crossbeam, an upper printing roller, a motor and a feed rod fine adjustment mechanism, wherein the rapid adjustment and accurate adjustment of the distance between the lower printing roller and the upper printing roller can be realized by the feed rod fine adjustment mechanism through the screw-thread fit between the lead screw and the driving nut; a driven roller is arranged on the lower crossbeam of the roller printing machine of the embodiment; a pressure sensor and a piezoelectric signal converter are arranged on the upper crossbeam; and the distance between a driving roller and the driver roller can be automatically adjusted according to the thickness of raw materials to be processed and the requirements of printing and dyeing pressure, thereby realizing the self-adaptive adjustment of pressure in the printing and dyeing process, improving the poor printing and dyeing layering of the roller printing machine and avoiding the phenomenon of defective goods such as uneven printing colors.

The forming cylinder has a hollow cylindrical body having two separating edges oriented in longitudinal direction of the body, such that a lateral surface broken by a gap is formed. A clamping system (10) is provided for expanding the hollow cylindrical body. The clamping system has two rotatable rings mounted on the hollow cylindrical body. The rings are connected by a carrier present in the gap. The spring elements are employed at the carrier and at the former separating edge. The spring force of the spring elements act in circumferential direction of the hollow cylindrical body.

The invention relates to the technical field of door body foaming lines, and discloses a foaming formwork positioning device on a door body foaming line. The device comprises a base, wherein movable grooves are symmetrically formed in the upper end of the base, movable blocks are symmetrically connected in the movable grooves in a sliding manner, movable plates are fixedly connected to the upper ends of the two movable blocks positioned in different movable grooves, a case and a locking device are fixedly connected to the upper ends of the two movable plates correspondingly, rotating rods aresymmetrically and rotationally connected to the wall of the case through four first bearings, gears are fixedly connected to the rod walls of the rotating rods located in the case in a sleeve mode, movable holes are symmetrically formed in the opposite walls of the case relative to the gears, and a triggering mechanism is mounted on the case and right above the gears. The foaming formwork positioning device on the door body foaming line can block the foaming formwork before the foaming formwork moves to a specified position, can stably position the foaming formwork, and can conveniently position foaming formworks with different lengths.

The invention discloses an automatic feeding multi-head melt extrusion forming 3D printing equipment, including a 3D printer and an injection molding machine; the 3D printer includes a 3D printer base, a 3D printer support, an X-axis module that forms a vertical movement pair with the 3D printer support, The print head mounting plate that forms a horizontal movement pair with the X-axis module, and the printing object support platform that forms a horizontal movement pair with the 3D printer base, the print head mounting plate is perpendicular to the direction of movement of the printing object support platform, and the print head mounting plate is inverted T In the shape of a font, the vertical part of the print head mounting plate is slidably installed on the X-axis module, and more than one print head is detachably installed on the horizontal part. The beneficial effects of the present invention are: setting up multi-printing heads that can be easily disassembled, increasing or decreasing, and adjusting spacing to print at the same time; Utilization and equipment utilization, saving production costs.

The invention discloses an H-shaped steel main beam connecting device with adjustable balance. The connecting device takes a load-bearing shaft as a main body, and connects H-shaped main beam 1 and H-shaped main beam 2 as a whole through a connecting plate on the load-bearing shaft. Among them, the self-weight of the H-shaped main beam 1 is directly transmitted to the H-shaped main beam 2 through the load-bearing shaft, and the connecting plate is not stressed; if it is found that the H-shaped main beam 1 is tilted in the later stage, by rotating the nut, increase (or Reduce) the distance between the connecting bolts, so that H-shaped main beam one rotates around the load-bearing axis until H-shaped main beam one returns to the same vertical line as H-shaped main beam two. The structure of the present invention is simple, and the construction process is simple , good stability and strong market prospects.

The invention relates to the technical field of steelmaking, and discloses a mobile weighing and measuring platform for billets of continuous casting machines. The weighing hook assembly on the beam of the gantry frame, the lifting drive unit used to drive the weighing hook assembly to move up and down, and the weight of the billet weighed by the weighing hook assembly The length of the billet is determined by the measuring system. The two gantry frames include a fixed gantry frame and a mobile gantry frame. The fixed gantry frame is fixed on the ground, and the columns on both sides of the mobile gantry frame The lower end is provided with a drive wheel, and a drive support with a set length is cast on the ground along the moving direction of the mobile gantry, and the drive wheel moves back and forth along the drive support to drive the mobile gantry relative to the fixed The gantry moves back and forth. The invention facilitates the adjustment of the distance between the two gantry frames, so as to facilitate the on-line weighing of the slab.

The invention discloses a fiber fixing clamp suitable for fixation of inclined planes. The clamp comprises a fiber sheath. A screw penetrates through the fiber sheath. The fiber sheath and the screw are screwed together. The fiber sheath is capable of moving along the screw. A connection rod is hinged to one end of the screw. The hinging place can be fixed through a screw fastening piece. One end, away from the screw, of the connection rod is equipped with a C-type fixing rack. The C-type fixing rack comprises an installation plate 1, an installation plate 2 and an installation plate 3. Two ends of the installation plate 2 are hinged to the installation plate 1 and the installation plate 3, and hinging places can be fixed through thread fastening pieces. One end of the installation plate is connected with one end, away from the screw, of the connection rod. A press screw penetrates through the installation plate 3. Each of the installation plate 1, the installation plate 2 and the installation plate 3 comprises a flat plate 1 and a flat plate 3. The flat plates 1 are connected with the flat plates 2 through telescoping rods. According to the invention, the clamp is suitable for fixation on multiple kinds of planes; positions of feed line cards can be quite flexibly adjusted; and feed lines can be fixed and are not liable to fall off.

The invention relates to the technical field of medical treatment and discloses an automatic test tube sterilization device for medical experiments. The automatic test tube sterilization device comprises a box body. A baffle is arranged on the back face of a conveyor belt. A moving plate is arranged on the top of the conveyor belt. A test tube frame is arranged on the front face of a fixed plate.Conical teeth are arranged on the outer side of a sleeve pipe. A water output pipe is arranged on the bottom of the sleeve pipe. A folded rod is arranged on the outer side of the water output pipe. Ahairbrush is arranged on the outer side of the folded rod. A water tank is arranged on the top of the box body. A storing box is arranged on the inner top wall of the box body. A connecting pipe is arranged on the bottom of the storing box. An opening is formed between the water tank and the storing box. A vertical rod is arranged on the bottom of a pushing plate. A pulling disc rotates to drive agroove wheel to rotate, a moving block moves to the slope of a fixing groove and moves downwards along the slope, the moving block rotates to drive the test tube frame to rotate through a rotating rod, the moving block moves to a lower sliding groove to rotate, the test tube frame is driven to rotate, the test tube frame rotates by 180 degrees, openings of test tubes are rotated to be downward, and water in the test tubes is poured out of the openings of the test tubes.