30results about How to "Realize up and down displacement" patented technology

The invention relates to an automatic adjustment structure for a flanging sub mold or an extending sub mold. The automatic adjustment structure comprises a shell, wherein a screw rod penetrates through the shell, and a first oil cylinder cavity and a second oil cylinder cavity are arranged in the shell respectively. A first piston is arranged in the first oil cylinder cavity, a first ejector block is connected with the end of the first piston, and the first ejector block is connected with a first ratchet wheel in an abutting mode. The automatic adjustment structure is simple in structure and convenient to use, two oil cylinders in the shell are used for driving two ratchet wheels to rotate in different directions to achieve moving of the screw rod, finally vertical moving of the flanging convex mold is achieved, and automatically adjustment of the flanging height is achieved, so that the laminated heights of the whole fins of a heat exchanger are uniform. Meanwhile, in the moving process of the screw rod, by means of the transmission mode of gear meshing, a dial records the flanging height, a rotation stopping block is arranged to prevent the revolution number of a gear from being too large, and the phenomenon that the dial can not accurately record subsequently is avoided.

The invention discloses an impact-proof automobile air bag rigidity detection device. The impact-proof automobile air bag rigidity detection device comprises an L-shaped operation bench (1). Two fixed blocks are arranged on a vertical surface of the operation bench (1) in an up-down manner. The fixed blocks include an upper fixed block (3) and a lower fixed block (4). A smooth through hole penetrating a screw (5) is formed in the upper fixed block (3). A circular groove for accommodating the bottom end of the screw (5) is formed in the upper surface of the lower fixed block (4). The screw (5) is in threaded connection with a movable block (6). The movable block (6) is connected with a horizontal upper extruding plate (8) through an upright column (7). A plurality of grooves (15) for accommodating heavy objects are formed in the upper surface of the upper extruding plate (8). The impact-proof automobile air bag rigidity detection device provided by the invention is high in automatic degree and is real and reliable in detection result, the upper extruding plat has an impact-proof function, and the universality is high.

A lifting mechanism comprises a base. A driving sprocket is mounted in the base, a support is arranged on the lower portion of the base, a driven sprocket is mounted on the support, and the driving sprocket is in meshed transmission with the driven sprocket via a first chain, so that a vertically arranged chain transmission mechanism is formed; a first connector and a second connector are respectively mounted on chain links on two sides of the first chain by fasteners; a first cylinder is mounted at the bottom of the base, and a first piston rod of the first cylinder is connected with the first connector; a second cylinder is mounted on the support, and a second piston rod of the second cylinder is connected with the second connector; a slide groove framework which is parallel to the vertically arranged chain transmission mechanism is arranged on one side of the support, rollers are mounted in the slide groove framework, a bracket capable of sliding along the slide groove framework is connected onto the slide groove framework, and a compaction plate is mounted on the upper portion of the bracket; and a fixed pulley is arranged on one side of the driving sprocket, the driving sprocket is meshed with the fixed pulley via a second chain, and the second chain at one end of the fixed pulley is connected with the compaction plate by a fastener. The lifting mechanism has the advantages of reliability in operation and high precision.

The invention discloses a 3D printer with a rotating and autonomous coloring structure, which includes a main body shell, a coloring ring, a braking area, a driving gear and a movable base. The operating table is fixed, a control rod is arranged above the telescopic rod, a chute is arranged inside the coloring ring, a coloring nozzle is installed inside the chute, a fixed rotating shaft is arranged at the inner lower end of the braking area, and a fixed rotating shaft is installed above the fixed rotating shaft. There are vertically moving crawlers. Compared with the existing ordinary 3D printers, the 3D printer with a rotating and autonomous coloring structure has as few internal structures as possible while ensuring its printing performance, effectively reducing the production and use costs of the equipment, and discarding The original method of production relying on the basic color of the material can achieve simultaneous or independent coloring after processing, which greatly improves the scope of application of the entire equipment.

This application relates to a curing room for recycled concrete test blocks, which includes a curing room with an open side and a curing door covered on the opening. The inner wall of the curing room is provided with a humidifying component. For the maintenance boards arranged horizontally, the maintenance room is provided with a lifting assembly that drives several maintenance boards to move up and down sequentially, and the maintenance room is provided with a supporting assembly that fixes the maintenance boards moved to the designated positions. In the present application, the lifting component is driven to move downwards to reduce the height of the curing plate, which is convenient for staff to put and take concrete test blocks on the curing plate, and reduces the workload of the staff.

The present invention relates to the technical field of paper pulp whiteness detection during a pulping papermaking process, more particularly to a wet pulp sample placement apparatus and a control method thereof. The wet pulp sample placement apparatus comprises a first motor, a sliding track connected with the first motor, and a sliding block arranged on the sliding track, wherein the upper end portion and the lower end portion of the sliding track are respectively provided with an upper position limitation switch and a lower position limitation switch. The wet pulp sample placement apparatus further comprises a second motor, a rotation shaft and a tray, wherein the second motor is fixed on the sliding block, one end of the rotation shaft is connected with the second motor, the other end is connected with the tray, and the second motor is provided for driving the tray to rotate through the rotation shaft. The wet pulp sample placement apparatus further comprises a single-chip computer arranged inside the wet pulp sample placement apparatus, wherein the single-chip computer is respectively and electrically connected with the first motor, the second motor, the upper position limitation switch and the lower position limitation switch. The wet pulp sample placement apparatus has the following characteristics that: the structure is simple, up and down displacement can be achieved, 360 DEG rotation can be achieved, and the apparatus can be adopted to replace manual rotation of a sample requiring detection, such that the whiteness detection result of the sample is accurate.

The invention relates to a cleaning device for insulators of electric lines. The cleaning device is characterized by comprising a cleaning module, a lifting module, a walking module, a water pipe box, a water tank and a water pump, wherein the cleaning module is fixed to the walking module by virtue of the lifting module, the water pipe box, the water tank and the water pump are all fixed to the walking module, and the water pipe box is connected with the water tank by virtue of the water pump; the cleaning module comprises a cleaning arm, a nozzle, a sliding block, a screw-nut mechanism, a guide rail, guide rail brackets and a workbench; a workbench water outlet is formed in the workbench, the guide rail brackets are arranged on the outer side of the workbench water outlet, the guide rail is fixed to the guide rail brackets by virtue of screws, a connecting frame is horizontally connected between the two adjacent guide rail brackets, the screw-nut mechanism is fixed to the outer side of the middle of the connecting frame along a vertical direction, and the screw-nut mechanism comprises a screw connecting plate, a screw nut, a screw, bearing seats, a coupling and a stepping motor; the stepping motor is connected with screw by virtue of the coupling, and the bearing seats sleeve both ends of the screw.

The invention discloses a screen printer. The screen printer comprises a net frame, a support frame, a conveyor and an electric linear guide rail, wherein a supporting plate used for supporting a conveyor belt is arranged on the supporting frame, the supporting plate is fixedly connected with the supporting frame, the conveyor is mounted on the support frame, the belt of the conveyor is clung to the supporting plate, a first connecting plate and a second connecting plate are arranged on the supporting frame, a first sliding guide rail and a second sliding guide rail are arranged on the front surface of the first connecting plate and the front surface of the second connecting plate respectively, clamps used for clamping the net frame is arranged on the first sliding guide rail and the second sliding guide rail, a net plate is arranged on the net frame, the net plate is located right above the supporting plate, the electric linear guide rail is mounted between the first connecting plateand the second connecting plate, and a scraping plate matched with the net plate is arranged on a slider of the electric linear guide rail. The screen printer can adjust the screen height so as to prevent the scraping plate from working under the condition of high load for a long time.