Device for producing plastic back plate

Abstract

The invention discloses a device for producing a plastic back plate, which comprises a workbench and is characterized by further comprising a U-shaped frame, two support plates, a pressing assembly, a screw rod, a moving frame and rollers, the U-shaped frame is fixedly connected to one end of the top of the workbench, the two support plates are fixedly connected to two sides of the middle of the U-shaped frame, the pressing assembly is arranged at one end of each support plate, and the screw rod is arranged on the moving frame. The pressing assembly comprises a pressing rod and pressing plates, the multiple pressing plates are slidably connected with the supporting plate, the pressing plates are arranged at the bottom of the pressing rod, the lead screw is rotationally connected to the top of the U-shaped frame, one end of the lead screw is in threaded connection with a connecting plate, the top of the connecting plate is fixedly connected with a moving plate, and the moving frame is fixedly connected to the two ends of the bottom of the moving plate. The roller is rotationally connected to the top of the pressing rod and is in rolling connection with the moving frame; through the design of the pressing assembly, the pressing part of the plastic back plate can be correspondingly changed along with the movement of the cutting knife, so that the pressing stability is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic backboard production, and in particular to a device for producing plastic backboards. Background Art

[0002] A plastic backsheet is a flat or curved structural component made primarily of plastic. It is typically used as a product's housing, support structure, or functional component. It is widely used in electronic devices, automobiles, architectural decoration, and other fields. During production, the plastic backsheet needs to be cut into specified sizes.

[0003] After searching, a Chinese patent with publication number CN117428841A discloses a plastic sheet slicing device, which belongs to the field of plastic sheet cutting technology. A plastic sheet slicing device includes: a workbench for supporting the plastic sheet, with support frames fixedly connected to both sides of the top of the workbench; a linear actuator fixedly mounted on the support frame and arranged on both sides of the workbench, the output shafts of the two linear actuators fixedly connected to a movable plate located above the workbench, and connecting plates fixedly connected to the bottoms of both sides of the movable plate; a clamping mechanism arranged on the support frame for clamping the plastic sheet when the connecting plate moves; a circular saw for cutting the plastic sheet, with a first rotation source for driving the circular saw to rotate installed on one side of the circular saw; a moving mechanism for driving the circular saw to move; and a deburring mechanism for removing burrs on the plastic sheet after cutting by the circular saw.

[0004] In the above technology, the two ends of the plate are squeezed by the design of the clamping mechanism to fix the plate. However, fixing the plate in this way cannot ensure the stability of the middle part of the plate, which causes the plate to vibrate easily when the cutting knife cuts to the middle of the plate, thereby affecting the cutting accuracy. In the existing technology, most of the plates are squeezed by a long pressing plate. Since the long pressing plate itself is long, the long pressing plate is prone to deformation and bending, resulting in uneven pressure when clamping. In this way, the stability of the plate at the position with less pressure will be relatively poor, thereby affecting the subsequent cutting accuracy. Summary of the Invention

[0005] The object of the present invention is to provide a device for producing a plastic backboard, so as to solve the problem that the existing equipment cannot stably press the board during the cutting process.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for producing a plastic backboard, comprising a workbench and:

[0007] U-shaped frame, fixedly connected to one end of the top of the workbench;

[0008] Two support plates are provided and fixedly connected to both sides of the middle of the U-shaped frame;

[0009] A pressing assembly is provided at one end of the support plate, the pressing assembly includes a pressing rod and a pressing plate, a plurality of pressing plates are provided and are slidably connected to the support plate, and a pressing plate is provided at the bottom of the pressing rod;

[0010] A screw rod is rotatably connected to the top of the U-shaped frame, one end of the screw rod is threadedly connected to a connecting plate, and the top of the connecting plate is fixedly connected to a movable plate;

[0011] The movable frame is fixedly connected to the two ends of the bottom of the movable plate, and the two ends of the bottom of the movable frame are respectively provided with inclined parts, and the middle part of the bottom of the movable frame is provided with a horizontal part;

[0012] The roller is rotatably connected to the top of the pressure rod, and the roller is rollingly connected to the movable frame.

[0013] Preferably, the pressure rod is fixedly connected to a circular plate above the support plate, and a first spring is fixedly connected to the bottom of the circular plate, and the spring is fixedly connected to the support plate.

[0014] Preferably, two second springs are fixedly connected to the bottom of the pressure rod, the pressure rod is located inside the second spring and is fixedly connected to a damper, and the second spring and the damper are both fixedly connected to the pressure plate.

[0015] Preferably, rectangular plates are fixedly connected to the top ends of the U-shaped frame, the pressure rod is slidably connected to the rectangular plates, and fixed plates are fixedly connected to the tops of the side walls of the U-shaped frame, and the fixed plates are rotatably connected to the screw rod.

[0016] Preferably, a first motor is provided at one end of the screw rod, the first motor is fixedly connected to the fixed plate, the output end of the first motor is fixedly connected to the screw rod, the two fixed plates are located around the screw rod and are fixedly connected with four sliding rods, and the sliding rods are slidably connected to the connecting plate.

[0017] Preferably, a slider is fixedly connected to the bottom of the connecting plate, the slider is slidably connected to the U-shaped frame, the bottom of the slider is fixedly connected to a cylinder, and a cutting knife is provided at the output end of the cylinder.

[0018] Preferably, the output end of the cylinder is fixedly connected to a cover shell, the cutting knife is rotatably connected to the inside of the cover shell, one end of the outer wall of the cover shell is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to the cutting knife.

[0019] Preferably, a placement box is fixedly connected to the top of the workbench, a cutting groove is provided at the center of the top of the placement box, and through holes are respectively provided at both ends of the cutting groove on the top of the placement box.

[0020] Preferably, one end of the bottom of the workbench is fixedly connected to a conduit, the conduit is communicated with the placement box, and one end of the conduit is communicated with a slag collecting box.

[0021] Preferably, an exhaust pipe is provided at one end of the slag collecting box, a negative pressure fan is rotatably connected to one end of the exhaust pipe, a filter is fixedly connected to the exhaust pipe inside the slag collecting box, and a door is installed at one end of the slag collecting box.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention squeezes the plastic backboard through the design of a pressing assembly, thereby ensuring the stability of the plastic backboard during the cutting process. The first motor drives the screw to rotate, thereby driving the connecting plate, the movable plate, the slider, the cylinder and the cutting knife to move. The movable plate drives the movable frame to move when it moves. When the movable frame moves, the inclined portion contacts the roller at the top of the pressure rod. When the movable frame continues to move, it drives the roller, the pressure rod and the pressure plate to move downward, thereby squeezing the backboard, thereby ensuring the stability of the backboard during the cutting process.

[0024] The present invention provides a plurality of pressure rods and pressure plates, thereby making the pressure plates shorter in length. The shorter pressure plates are less deformed, thereby ensuring uniformity during compression. In addition, through the design of the plurality of pressure rods and pressure plates, when the cutting knife moves to the corresponding pressure plate position, the pressure plate at that position can squeeze the back plate, thereby ensuring the stability of the back plate in the cutting position.

[0025] The present invention uses a negative pressure fan to extract the air inside the slag collecting box, thereby generating negative pressure inside the slag collecting box. At this time, the debris generated during the cutting process will flow into the placement box through the through holes and the cutting grooves. The debris inside the placement box will flow into the slag collecting box through the conduit under the action of negative pressure, so as to facilitate subsequent centralized cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 for Figure 1 A local enlarged structural diagram in FIG.

[0028] Figure 3 Schematic diagram of the connection structure between the support plate and the pressing assembly in the present invention;

[0029] Figure 4 Schematic diagram of the structure of the compression assembly in the present invention;

[0030] Figure 5 This is a schematic diagram of the U-shaped frame structure in the present invention;

[0031] Figure 6 Schematic diagram of the connection structure between the connecting plate and the screw rod in the present invention;

[0032] Figure 7Schematic diagram of the structure of the mobile frame in the present invention;

[0033] Figure 8 It is a schematic diagram of the side cross-section structure of the exhaust pipe in the present invention.

[0034] In the figure: 1. workbench; 2. U-shaped frame; 3. support plate; 4. clamping assembly; 401. pressure rod; 402. pressure plate; 403. roller; 404. circular plate; 405. first spring; 406. second spring; 407. damper; 5. screw rod; 6. connecting plate; 7. movable plate; 8. movable frame; 801. inclined portion; 802. horizontal portion; 9. rectangular plate; 10. fixed plate; 11. first motor; 12. sliding rod; 13. slider; 14. cylinder; 15. cutting knife; 16. cover; 17. second motor; 18. placement box; 19. cutting groove; 20. through hole; 21. conduit; 22. slag collecting box; 23. exhaust pipe; 24. negative pressure fan; 25. filter; 26. door body. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] See also Figures 1-8 , the present invention provides a technical solution: a device for producing plastic backboards, including a workbench 1, characterized in that it also includes a U-shaped frame 2, a support plate 3, a pressing assembly 4, a screw rod 5, a movable frame 8 and a roller 403, the U-shaped frame 2 is fixedly connected to one end of the top of the workbench 1, two support plates 3 are provided, and are fixedly connected to both sides of the middle of the U-shaped frame 2, the pressing assembly 4 is provided at one end of the support plate 3, the pressing assembly 4 includes a pressure rod 401 and a pressure plate 402, a plurality of pressure plates 402 are provided, and are slidably connected to the support plate 3, a pressure plate 402 is provided at the bottom of the pressure rod 401, the screw rod 5 is rotatably connected to the top of the U-shaped frame 2, one end of the screw rod 5 is threadedly connected to the connecting plate 6, the connecting plate 6 is fixedly connected to the top of the movable plate 7, the movable frame 8 is fixedly connected to the two ends of the bottom of the movable plate 7, the two ends of the bottom of the movable frame 8 are respectively provided with an inclined portion 801, and the middle part of the bottom of the movable frame 8 is provided with a horizontal portion 802. The roller 403 is rotatably connected to the top of the pressure rod 401, and the roller 403 is rollingly connected to the movable frame 8; the pressure rod 401 is located above the support plate 3 and is fixedly connected to the circular plate 404, and the bottom of the circular plate 404 is fixedly connected to the first spring 405, and the spring is fixedly connected to the support plate 3; the bottom of the connecting plate 6 is fixedly connected to the slider 13, the slider 13 is slidably connected to the U-shaped frame 2, the bottom of the slider 13 is fixedly connected to the cylinder 14, and the output end of the cylinder 14 is provided with a cutting knife 15;

[0037] In this embodiment, when cutting the plate, it is necessary to ensure the stability of the plastic backboard in the cutting position. In order to allow the cutting knife 15 to completely cut the backboard during the cutting process, it is necessary to drive the connecting plate 6 to move, thereby driving the slider 13, the cylinder 14 and the cutting knife 15 to move, so that the cutting knife 15 can completely cut the backboard. When the connecting plate 6 moves, it will drive the moving plate 7 and the moving frame 8 to move. When the moving frame 8 moves, the inclined portion 801 will contact the roller 403 at the top of the pressure rod 401. When the moving frame 8 continues to move, it will drive the roller 403 to move. 03. The pressure rod 401 and the pressure plate 402 move downward until the horizontal portion 802 in the movable frame 8 moves above the roller 403. The roller 403, the pressure rod 401 and the pressure plate 402 stop moving downward. At this time, the pressure plate 402 will squeeze the back plate to ensure the stability of the back plate during the cutting process. When the pressure rod 401 moves downward, the circular plate 404 will move downward. At this time, the circular plate 404 will squeeze the first spring 405, thereby contracting the first spring 405. During the continuous cutting process of the cutting knife 15, the connecting plate 6 will continue to When the cutting blade 15 is moved, the inclined portion 801 of the moving frame 8 will contact and squeeze the other roller 403, so as to continue squeezing the pressure plate 402 in the direction of travel of the cutting blade 15. It should be noted that the horizontal portion 802 of the moving frame 8 can accommodate two rollers 403 at the same time, so as to avoid that when the roller 403 at the bottom of the moving frame 8 moves out of the horizontal portion 802, the roller 403 in the direction of travel of the cutting blade 15 is not yet located below the horizontal portion 802 of the moving frame 8, that is, the roller 403, the pressure rod 401 and the pressure plate 402 are not fully squeezed. When the horizontal portion 802 of the frame 8 passes over the roller 403, the first spring 405 will rebound, thereby driving the circular plate 404, the pressure rod 401, the pressure plate 402 and the roller 403 to gradually reset. The length of the pressure plate 402 is shorter, and the shorter pressure plate 402 itself undergoes less deformation, thereby ensuring uniformity during compression. In addition, through the design of multiple pressure rods 401 and pressure plates 402, when the cutting knife 15 moves to the corresponding pressure plate 402 position, the pressure plate 402 at this location can squeeze the back plate, thereby ensuring the stability of the back plate in the cutting position.

[0038] like Figure 4 As shown, two second springs 406 are fixedly connected to the bottom of the pressure rod 401, and the pressure rod 401 is located inside the second spring 406 and is fixedly connected to a damper 407. The second spring 406 and the damper 407 are both fixedly connected to the pressure plate 402;

[0039] In this embodiment, when the roller 403 moves to the lower half of the inclined portion 801 of the movable frame 8, the pressure plate 402 will contact the back plate. During the continuous movement of the movable frame 8, the roller 403 and the pressure rod 401 will continue to move downward. At this time, the second spring 406 and the damper 407 will shrink, thereby ensuring that the pressure plate 402 can stably press the back plate.

[0040] like Figure 5 As shown, the two ends of the top of the U-shaped frame 2 are respectively fixedly connected to a rectangular plate 9, the pressure rod 401 is slidably connected to the rectangular plate 9, and the tops of the side walls of the U-shaped frame 2 at both ends are respectively fixedly connected to a fixed plate 10, and the fixed plate 10 is rotatably connected to the screw rod 5; a first motor 11 is provided at one end of the screw rod 5, the first motor 11 is fixedly connected to the fixed plate 10, and the output end of the first motor 11 is fixedly connected to the screw rod 5, and the two fixed plates 10 are located around the screw rod 5 and are fixedly connected to four sliding rods 12, and the sliding rods 12 are slidably connected to the connecting plate 6;

[0041] In this embodiment, when it is necessary to drive the connecting plate 6 to move, the first motor 11 is turned on first, and the screw rod 5 is driven to rotate by the first motor 11, thereby driving the connecting plate 6 to move, and then driving the slider 13, the cylinder 14 and the cutting knife 15 to move, so that the cutting knife 15 can completely cut off the back plate. In addition, when the connecting plate 6 moves, it will drive the movable plate 7 and the movable frame 8 to move. When the movable frame 8 moves, it can squeeze the roller 403 at the cutting knife 15, and drive the pressure rod 401 and the pressure plate 402 to move downward, so that the pressure plate 402 squeezes the cutting position to ensure the stability of the cutting process.

[0042] like Figure 6 As shown, the output end of the cylinder 14 is fixedly connected to the cover 16, the cutting knife 15 is rotatably connected to the inside of the cover 16, and one end of the outer wall of the cover 16 is fixedly connected to the second motor 17, and the output end of the second motor 17 is fixedly connected to the cutting knife 15;

[0043] In this embodiment, when cutting the backboard, the cutting blade 15 is first driven to rotate by the second motor 17, and then the cover 16 and the cutting blade 15 are driven downward by the cylinder 14, so that the cutting blade 15 can smoothly cut the backboard.

[0044] like Figure 8As shown, a placement box 18 is fixedly connected to the top of the workbench 1, a cutting groove 19 is provided at the center of the top of the placement box 18, and through holes 20 are respectively provided at both ends of the cutting groove 19 on the top of the placement box 18; a conduit 21 is fixedly connected to one end of the bottom of the workbench 1, the conduit 21 is communicated with the placement box 18, and one end of the conduit 21 is communicated with a slag collecting box 22; an exhaust pipe 23 is provided at one end of the slag collecting box 22, a negative pressure fan 24 is rotatably connected to the inside of the exhaust pipe 23, a filter screen 25 is fixedly connected to the exhaust pipe 23 inside the slag collecting box 22, and a door body 26 is installed at one end of the slag collecting box 22;

[0045] In this embodiment, the negative pressure fan 24 can be turned on during the cutting of the back panel, and the air inside the slag box 22 can be extracted by the negative pressure fan 24, so that negative pressure is generated inside the slag box 22. At this time, the debris generated during the cutting process will flow into the placement box 18 through the through hole 20 and the cutting groove 19. The debris inside the placement box 18 will flow into the slag box 22 through the conduit 21 under the action of negative pressure. The design of the filter 25 can prevent the debris from being discharged through the exhaust pipe 23, and the design of the door body 26 makes it easy for the staff to clean the inside of the slag box 22.

[0046] Working principle: When cutting the plate, the cutting knife 15 is first driven to rotate by the second motor 17, and then the cover 16 and the cutting knife 15 are driven downward by the cylinder 14, so that the cutting knife 15 can smoothly cut the back plate. In order to allow the cutting knife 15 to completely cut the back plate during the cutting process, it is necessary to drive the connecting plate 6 to move. At this time, the first motor 11 is turned on first, and the screw rod 5 is driven to rotate by the first motor 11, thereby driving the connecting plate 6 to move, and then driving the slider 13, the cylinder 14 and the cutting knife 15 to move, so that the cutting knife 15 can completely cut the back plate. In addition, when the connecting plate 6 moves, it will drive the movable plate 7 and the movable frame 8 to move. When the movable frame 8 moves, the inclined portion 801 will contact the roller 403 at the top of the pressure rod 401. When the horizontal portion 802 in the moving frame 8 moves to above the roller 403, the roller 403, the pressure rod 401 and the pressure plate 402 stop moving downward. When the pressure rod 401 moves downward, the circular plate 404 is driven to move downward. At this time, the circular plate 404 squeezes the first spring 405, thereby causing the first spring 405 to contract.

[0047] During the continuous cutting process of the cutting knife 15, the connecting plate 6 will continue to move. At this time, the inclined portion 801 of the moving frame 8 will contact and squeeze the other roller 403, so as to continue to squeeze the pressure plate 402 in the direction of the cutting knife 15. It should be noted that the horizontal portion 802 of the moving frame 8 can accommodate two rollers 403 at the same time, so as to avoid the roller 403 at the bottom of the moving frame 8 moving out of the horizontal portion 802 and the roller 403 in the direction of the cutting knife 15 not being located below the horizontal portion 802 of the moving frame 8, that is, the roller 403, the pressure rod 401 and the pressure plate 402 are not When the horizontal portion 802 of the movable frame 8 passes over the roller 403, the first spring 405 will rebound, thereby driving the circular plate 404, the pressure rod 401, the pressure plate 402 and the roller 403 to gradually return to their original position. The length of the pressure plate 402 is relatively short, and the degree of deformation of the shorter pressure plate 402 itself is relatively low, thereby ensuring uniformity during compression. In addition, through the design of multiple pressure rods 401 and pressure plates 402, when the cutting knife 15 moves to the position corresponding to the pressure plate 402, the pressure plate 402 at that position can squeeze the back plate, thereby ensuring the stability of the back plate in the cutting position.

[0048] During the cutting process of the back panel, the negative pressure fan 24 can be turned on to extract the air inside the slag box 22 through the negative pressure fan 24, thereby generating negative pressure inside the slag box 22. At this time, the debris generated during the cutting process will flow into the placement box 18 through the through hole 20 and the cutting groove 19. The debris inside the placement box 18 will flow into the slag box 22 through the conduit 21 under the action of negative pressure. The design of the filter 25 can prevent the debris from being discharged through the exhaust pipe 23. The design of the door body 26 makes it easy for the staff to clean the inside of the slag box 22.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for producing a plastic backboard, comprising a workbench (1), characterized in that: Also includes: A U-shaped frame (2) is fixedly connected to one end of the top of the workbench (1); Two support plates (3) are provided and fixedly connected to both sides of the middle portion of the U-shaped frame (2); A pressing assembly (4) is arranged at one end of the support plate (3), the pressing assembly (4) comprising a pressing rod (401) and a pressing plate (402), a plurality of pressing plates (402) are provided and are slidably connected to the support plate (3), and a pressing plate (402) is provided at the bottom of the pressing rod (401); A screw rod (5) is rotatably connected to the top of the U-shaped frame (2); one end of the screw rod (5) is threadedly connected to a connecting plate (6); and a movable plate (7) is fixedly connected to the top of the connecting plate (6); The movable frame (8) is fixedly connected to the two ends of the bottom of the movable plate (7), and the two ends of the bottom of the movable frame (8) are respectively provided with inclined parts (801), and the middle part of the bottom of the movable frame (8) is provided with a horizontal part (802); The roller (403) is rotatably connected to the top of the pressure rod (401), and the roller (403) is rollingly connected to the movable frame (8).

2. The device for producing a plastic backboard according to claim 1, characterized in that: The pressure rod (401) is located above the support plate (3) and is fixedly connected to a circular plate (404). The bottom of the circular plate (404) is fixedly connected to a first spring (405), and the spring is fixedly connected to the support plate (3).

3. The device for producing a plastic backboard according to claim 2, characterized in that: Two second springs (406) are fixedly connected to the bottom of the pressure rod (401), and the pressure rod (401) is located inside the second spring (406) and is fixedly connected to a damper (407). Both the second spring (406) and the damper (407) are fixedly connected to the pressure plate (402).

4. The device for producing a plastic backboard according to claim 3, characterized in that: Rectangular plates (9) are fixedly connected to the top ends of the U-shaped frame (2), the pressure rod (401) is slidably connected to the rectangular plates (9), and the top ends of the side walls of the U-shaped frame (2) are fixedly connected to fixed plates (10), and the fixed plates (10) are rotatably connected to the screw rod (5).

5. The device for producing a plastic backboard according to claim 4, characterized in that: A first motor (11) is provided at one end of the screw rod (5), the first motor (11) is fixedly connected to the fixed plate (10), the output end of the first motor (11) is fixedly connected to the screw rod (5), and the two fixed plates (10) are located around the screw rod (5) and are fixedly connected with four sliding rods (12), and the sliding rods (12) are slidably connected to the connecting plate (6).

6. The device for producing a plastic backboard according to claim 5, characterized in that: A slider (13) is fixedly connected to the bottom of the connecting plate (6), the slider (13) is slidably connected to the U-shaped frame (2), a cylinder (14) is fixedly connected to the bottom of the slider (13), and a cutting knife (15) is provided at the output end of the cylinder (14).

7. The device for producing a plastic backboard according to claim 6, characterized in that: The output end of the cylinder (14) is fixedly connected to a housing (16), the cutting knife (15) is rotatably connected to the inside of the housing (16), one end of the outer wall of the housing (16) is fixedly connected to a second motor (17), and the output end of the second motor (17) is fixedly connected to the cutting knife (15).

8. The device for producing a plastic backboard according to claim 7, characterized in that: A placement box (18) is fixedly connected to the top of the workbench (1), a cutting groove (19) is provided at the center of the top of the placement box (18), and through holes (20) are respectively provided at both ends of the cutting groove (19) on the top of the placement box (18).

9. The device for producing a plastic backboard according to claim 8, characterized in that: A conduit (21) is fixedly connected to one end of the bottom of the workbench (1), the conduit (21) is communicated with the placement box (18), and one end of the conduit (21) is communicated with a slag collecting box (22).

10. The device for producing a plastic backboard according to claim 9, characterized in that: An exhaust pipe (23) is provided at one end of the slag collecting box (22), a negative pressure fan (24) is rotatably connected to one end of the exhaust pipe (23), a filter (25) is fixedly connected to the exhaust pipe (23) inside the slag collecting box (22), and a door (26) is installed at one end of the slag collecting box (22).

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