A plastic strip cutting device

Abstract

This utility model relates to the field of cutting technology, specifically to a plastic strip cutting device, including symmetrically arranged support plates and a hydraulic cylinder located near the top center of the support plates, as well as a processing plate located at the bottom of the hydraulic cylinder. First grooves are formed on the opposing surfaces of the two support plates. Horizontal columns are provided at both ends of the support plates. A top plate is located at the bottom of the hydraulic cylinder, and a connecting plate is located at the bottom of the top plate. A cutting blade is located at the bottom of the connecting plate. Second sliders are symmetrically arranged at the bottom of the processing plate. Each second slider has a moving block at its top. A rack plate is provided on the opposing surfaces of the two moving blocks. A gear is located between the two rack plates, and a base plate is located at the bottom of the gear. A conveyor belt is located in the middle of the support plates. By setting two rack plates that mesh with the gear, and welding the rack plates to the moving blocks and the moving blocks to the push plates, a first rotary motor is activated to drive the two push plates to move towards each other. The push plates center the plastic strip, and the two push plates clamp plastic strips of different widths.

Description

Technical Field

[0001] This utility model relates to the field of cutting technology, specifically a plastic strip cutting device. Background Technology

[0002] Plastic strips are mainly used for sealing, waterproofing, and sound insulation in daily life and industrial production;

[0003] A plastic strip cutting machine is disclosed in patent CN219276018U, which includes a worktable. A vertical frame is provided in the middle of the rear side of the worktable. Fixed rails are symmetrically provided on both sides of the top of the vertical frame. Sliding rods are slidably provided on the two sets of fixed rails. A horizontal frame is provided at the end of the sliding rod away from the vertical frame. An angle adjustment rod is hinged to the sliding rod. The angle adjustment rod is slidably provided on the horizontal frame. The angle between the angle adjustment rod and the sliding rod can be adjusted by sliding the angle adjustment rod on the horizontal frame. A cutting blade is connected to the bottom side of the angle adjustment rod through a telescopic rod. The cutting angle of the cutting blade can be changed simultaneously when the angle of the angle adjustment rod is changed.

[0004] The above technical solution allows for adjustment of the distance between the two sets of cutting blades by pushing two sets of sliding rods on a fixed rail to move closer to or away from the vertical frame, thus adapting to the overall length to be cut. However, the device cannot clamp rubber strips of different widths, resulting in poor stability during rubber strip processing. The inability to adjust the position and number of cutting blades makes it inconvenient to adjust the cutting according to different operating conditions. Summary of the Invention

[0005] The purpose of this invention is to provide a plastic strip cutting device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A plastic strip cutting device includes symmetrically arranged support plates and a hydraulic cylinder located near the top center of the support plates, as well as a processing plate located at the bottom of the hydraulic cylinder. First grooves are formed on the opposing surfaces of the two support plates. Horizontal columns are provided at both ends of the support plates. A top plate is located at the bottom of the hydraulic cylinder, and a connecting plate is located at the bottom of the top plate. A cutting blade is located at the bottom of the connecting plate. Second sliders are symmetrically arranged at the bottom of the processing plate. Each second slider has a moving block at its top. A rack plate is provided on the opposing surfaces of the two moving blocks. A gear is located between the two rack plates, and a base plate is located at the bottom of the gear. A conveyor belt is located in the middle of the interior of the support plates, and a storage box is located at the left end of the conveyor belt.

[0008] Preferably, the support plate and the cross column are connected by connecting screw holes, and the front end face of the support plate is provided with a sliding opening.

[0009] In this invention, a connecting screw is provided inside the connecting screw hole, and the connecting screw is threadedly connected to the connecting screw hole, which enhances the overall structural stability and enables quick disassembly and connection of the support plate and the cross column.

[0010] Preferably, the top plate is provided with a first slider at both the front and rear ends, and the first slider has a first screw hole at both the front and rear ends. The first screw hole is provided with a fixing bolt. The telescopic rod of the hydraulic cylinder passes through the top plate and is welded and fixed to the connecting plate.

[0011] In this invention, the first slider and the top plate are integrally formed. The size of the first slider and the first slide groove are adapted to achieve a sliding connection between the top plate and the first slide groove. The sliding connection facilitates the back-and-forth movement of the top plate within the first slide groove. Users can quickly increase or decrease the number of top plates according to different work requirements. Multiple top plates can be arranged according to the required cutting length of the rubber strip. The fixing bolt passes through the slide opening and is threaded into the first screw hole. The diameter of the front end of the fixing bolt is larger than the width of the slide opening. The threaded connection between the fixing bolt and the first screw hole increases the friction between the fixing bolt and the support plate, thereby fixing the top plate to the corresponding position on the first slide groove. Welding fixation enables the hydraulic cylinder to move the connecting plate up and down. A scale is provided at the top of the support plate corresponding to the top of the slide opening. The scale facilitates the user to move the top plate to the required position according to the cutting length of the rubber strip.

[0012] Preferably, the cutting blade has a protrusion at the top, the connecting plate has a groove at the bottom corresponding to the protrusion, the connecting plate has a second screw hole at both the front and rear ends, and the protrusion has a third screw hole at the front and rear ends corresponding to the second screw hole.

[0013] In this invention, the protrusion and the groove are matched in size to achieve a tight engagement between the protrusion and the connecting plate. A second screw is provided inside the second screw hole. The second screw is screwed through the second screw hole into the third screw hole and tightened to achieve quick disassembly and connection of the cutting blade and the connecting plate. When the bottom end of the cutting blade is dull, the user can unscrew the second screw out of the third screw hole to replace the cutting blade. The hydraulic cylinder is turned on to drive the cutting blade to move continuously to cut the rubber strip on the processing plate.

[0014] Preferably, the moving block is provided with a push plate at the top, a second sliding groove is opened in the middle of the moving block, the moving block is slidably connected to the second slider, the outer end of each rack plate is welded and fixed to the moving block, and a limiting plate is provided at the inner end of each rack plate.

[0015] In this invention, the bottom of the push plate is welded and fixed to the moving blocks on both sides of the gear. The sliding connection enables the moving blocks to move and change position on the second slider. The gear meshes with the corresponding rack plate. Welding and fixing increase the overall structural strength of the moving blocks and rack plates. The limiting plate is welded and fixed to the rack plate.

[0016] Preferably, the bottom of the base plate is provided with a first rotary motor, the output shaft of the first rotary motor passes through the base plate and is welded and fixed to the gear, and the bottom of the first rotary motor is provided with a support base.

[0017] In this utility model, a rectangular block is provided between the processing plate and the base plate. The rectangular block is welded and fixed to the processing plate and the base plate at the top and bottom respectively. The bottom of the base plate is symmetrically provided with support columns at the front and back. The support columns and the base plate are integrally formed. The support seat is welded and fixed to the bottom of the base plate. The support seat provides support for the bottom of the first rotary motor. When the first rotary motor is turned on, it drives the gear to rotate. At this time, the two rack plates that mesh with the gear move towards each other, driving the two moving blocks to move towards each other on the second slider. This allows the two push plates to fix the rubber strips of different widths on both sides. At the same time, the push plates straighten the position of the rubber strip, eliminating the need for the user to manually straighten it. A limit plate is provided to prevent the rack plates from moving and disengaging from the gear meshing part.

[0018] Preferably, the conveyor belt has a rotating drum inside both the left and right ends, and a second rotating motor is provided at the front end of the rotating drum at the right end. The output shaft of the second rotating motor passes through the support plate and is welded and fixed to the rotating drum.

[0019] In this invention, a fixing plate is provided at the bottom of the second rotary motor. The rear end of the fixing plate is welded and fixed to the support plate to support the second rotary motor. A rotating shaft is provided in the middle of the rotating drum. Bearings are provided at the corresponding positions of the support plate and the rotating shaft to achieve a rotatable connection between the rotating shaft and the support plate. Turning on the second rotary motor drives the two rotating drums to rotate in the same direction, which in turn drives the conveyor belt to rotate. The conveyor belt is woven from stainless steel to prevent the cutting blade from cutting the conveyor belt when cutting the rubber strip. A processing plate is provided at the bottom of the conveyor belt to provide support for the top of the conveyor belt, increasing the structural stability of the conveyor belt when the cutting blade cuts the rubber strip on the surface of the conveyor belt. The user turns on the second rotary motor and puts the rubber strip to be processed into the right end surface of the conveyor belt. When the rubber strip is conveyed to the middle of the push plate and fixed, the user turns off the second rotary motor and turns on the hydraulic cylinder to cut the rubber strip. After the rubber strip is cut, the user turns on the second rotary motor to drive the conveyor belt to rotate. The rubber strip on the conveyor belt is conveyed into the storage box, reducing the user's manual collection of the rubber strip.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model sets up two rack plates that mesh with the gear. The rack plates are welded to the moving block and the moving block is welded to the push plate. This enables the first rotary motor to drive the two push plates to move towards each other. The push plates center the position of the rubber strip. At the same time, the two push plates clamp rubber strips of different widths. A conveyor belt is set on the outside of the processing plate to facilitate the transportation of the rubber strips. A storage box is set up to centrally store the processed rubber strips.

[0022] 2. This utility model achieves the movement of the top plate within the first slide groove by setting the first slider on both sides of the top plate to slide in a first slide groove. The fixing bolts are screwed into the fixing screw holes and tightened to increase the friction between the fixing bolts and the support plate, thereby quickly fixing the top plate within the first slide groove. The user can quickly increase or decrease the number of top plates according to different cutting conditions. The hydraulic cylinder is activated to drive the cutting blade to cut the rubber strip held by the push plate. The cutting blade is threadedly connected to the connecting plate to achieve quick disassembly and replacement of the cutting blade. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram showing the position and structure of the connecting screw hole and the fixing screw hole of this utility model;

[0025] Figure 3 This is a schematic diagram of the hydraulic cylinder and slide plate structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the positional structure of the gear and rack plate of this utility model;

[0027] Figure 5 This is a schematic diagram showing the position and structure of the conveyor belt and storage box of this utility model.

[0028] The meanings of the labels in the diagram are as follows:

[0029] 1. Support plate; 10. First slide groove; 100. Connecting screw hole; 101. Slide opening; 102. Fixing bolt; 11. Horizontal column;

[0030] 2. Hydraulic cylinder; 20. Top plate; 200. First screw hole; 21. First slider; 210. Second screw hole; 22. Connecting plate; 23. Cutting blade; 230. Protrusion; 231. Third screw hole;

[0031] 3. Processing plate; 30. Base plate; 31. Second slider; 310. Moving block; 311. Push plate; 312. Second slide groove; 32. Rack plate; 320. Limiting plate; 321. Gear; 33. First rotary motor; 330. Support base;

[0032] 4. Conveyor belt; 41. Second rotary motor; 410. Rotary drum; 42. Storage box. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-5 This embodiment provides a technical solution:

[0035] A plastic strip cutting device includes a support plate 1 symmetrically arranged at the front and back, a hydraulic cylinder 2 located near the top center of the support plate 1, and a processing plate 3 located at the bottom of the hydraulic cylinder 2. The bottom of the hydraulic cylinder 2 is provided with a top plate 20, and the bottom of the top plate 20 is provided with a connecting plate 22. The bottom of the connecting plate 22 is provided with a cutting blade 23. The top plate 20 is provided with a first slider 21 at both the front and rear ends. The first slider 21 has a first screw hole 200 at both the front and rear ends. The first screw hole 200 is provided with a fixing bolt 102. The telescopic rod of the hydraulic cylinder 2 passes through the top plate 20 and is welded and fixed to the connecting plate 22.

[0036] In this utility model, the first slider 21 and the top plate 20 are integrally formed. The size of the first slider 21 and the first slide groove 10 are adapted to achieve a sliding connection between the top plate 20 and the first slide groove 10. The sliding connection facilitates the movement of the top plate 20 back and forth within the first slide groove 10. Users can quickly increase or decrease the number of top plates 20 according to different work requirements. Multiple top plates 20 are arranged according to the required cutting length of the rubber strip. The fixing bolt 102 passes through the slide opening 101 and is threadedly connected to the first screw hole 200. The diameter of the front end of the fixing bolt 102 is larger than the width of the slide opening 101. The threaded connection between the fixing bolt 102 and the first screw hole 200 increases the friction between the fixing bolt 102 and the support plate 1, thereby fixing the top plate 20 to the corresponding position on the first slide groove 10. Welding fixation enables the hydraulic cylinder 2 to move the connecting plate 22 up and down. The support plate 1 and the top of the slide opening 101 are provided with a scale. The scale makes it easy for users to move the top plate 20 to the required position according to the cutting length of the rubber strip.

[0037] Secondly, the top of the cutting blade 23 is provided with a protrusion 230, and the bottom of the connecting plate 22 is provided with a groove corresponding to the protrusion 230. The front and rear ends of the connecting plate 22 are provided with second screw holes 210, and the front and rear ends of the protrusion 230 are provided with third screw holes 231 corresponding to the second screw holes 210.

[0038] In this utility model, the protrusion 230 is adapted to the size of the groove, so that the protrusion 230 and the connecting plate 22 are tightly engaged. The second screw is provided inside the second screw hole 210. The second screw is screwed into the third screw hole 231 through the second screw hole 210 and tightened, so as to quickly disassemble and connect the cutting blade 23 and the connecting plate 22. When the bottom end of the cutting blade 23 is dull, the user unscrews the second screw out of the third screw hole 231 to replace the cutting blade 23. The hydraulic cylinder 2 is turned on to drive the cutting blade 23 to move continuously to cut the rubber strip on the processing plate 3.

[0039] Specifically, the bottom of the processing plate 3 is symmetrically provided with second sliders 31, each second slider 31 is provided with a moving block 310 at the top, and each of the two moving blocks 310 is provided with a rack plate 32 on the opposite side. A gear 321 is provided between the two rack plates 32, and a base plate 30 is provided at the bottom of the gear 321. A push plate 311 is provided at the top of the moving block 310, and a second sliding groove 312 is opened in the middle of the moving block 310. The moving block 310 is slidably connected to the second sliders 31. The outer end of each rack plate 32 is welded and fixed to the moving block 310, and a limiting plate 320 is provided at the inner end of each rack plate 32.

[0040] In this utility model, the bottom of the push plate 311 is welded and fixed to the moving blocks 310 on both sides of the gear 321. The sliding connection enables the moving blocks 310 to move and change position on the second slider 31. The gear 321 meshes with the corresponding rack plate 32. The welding and fixing increases the overall structural strength of the moving blocks 310 and the rack plate 32. The limiting plate 320 is welded and fixed to the rack plate 32.

[0041] In addition, a first rotary motor 33 is provided at the bottom of the base plate 30. The output shaft of the first rotary motor 33 passes through the base plate 30 and is welded and fixed to the gear 321. A support base 330 is provided at the bottom of the first rotary motor 33.

[0042] In this utility model, a rectangular block is provided between the processing plate 3 and the base plate 30. The rectangular block is welded and fixed to the processing plate 3 and the base plate 30 at the top and bottom respectively. The bottom of the base plate 30 is provided with symmetrical support columns at the front and back. The support columns and the base plate 30 are integrally formed. The support seat 330 is welded and fixed to the bottom of the base plate 30. The support seat 330 provides support for the bottom of the first rotary motor 33. When the first rotary motor 33 is turned on, it drives the gear 321 to rotate. At this time, the two rack plates 32 that mesh with the gear 321 move towards each other, driving the two moving blocks 310 to move towards each other on the second slider 31. This allows the two push plates 311 to fix the rubber strips of different widths on both sides. At the same time, the push plates 311 straighten the position of the rubber strip, eliminating the need for the user to manually straighten it. The limit plate 320 is provided to prevent the rack plates 32 from moving and disengaging from the meshing part of the gear 321.

[0043] Among them, the two support plates 1 have a first sliding groove 10 on their opposite sides, the support plates 1 have a horizontal column 11 at both ends, the support plates 1 and the horizontal column 11 have a connecting screw hole 100 at the connection point, and the front end face of the support plate 1 has a sliding opening 101.

[0044] In this utility model, a connecting screw is provided inside the connecting screw hole 100. The connecting screw is threadedly connected to the connecting screw hole 100, which enhances the overall structural stability and enables quick disassembly and connection of the support plate 1 and the cross column 11.

[0045] It is worth adding that a conveyor belt 4 is provided in the middle of the support plate 1, a storage box 42 is provided at the left end of the conveyor belt 4, and a rotating drum 410 is provided inside both the left and right ends of the conveyor belt 4. The front and rear ends of the rotating drum 410 are rotatably connected to the support plate 1. A second rotating motor 41 is provided at the front end of the right rotating drum 410. The output shaft of the second rotating motor 41 passes through the support plate 1 and is welded and fixed to the rotating drum 410.

[0046] In this invention, the second rotary motor 41 has a fixing plate at its bottom, and the rear end of the fixing plate is welded and fixed to the support plate 1. The fixing plate supports the second rotary motor 41. A rotating shaft is located in the middle of the rotating drum 410, and bearings are provided on the support plate 1 at corresponding positions to achieve a rotatable connection between the rotating shaft and the support plate 1. Turning on the second rotary motor 41 drives the two rotating drums 410 to rotate in the same direction, which in turn causes the conveyor belt 4 to rotate. The conveyor belt 4 is woven from stainless steel to prevent the cutting blade 23 from cutting the rubber strip. A processing plate 3 is provided at the bottom of the conveyor belt 4. The top of the conveyor belt 4 provides support, increasing the structural stability of the conveyor belt 4 when the cutting blade 23 cuts the rubber strip on the surface of the conveyor belt 4. The user turns on the second rotary motor 41 and puts the rubber strip to be processed into the right end surface of the conveyor belt 4. When the rubber strip is conveyed to the middle of the push plate 311 and fixed, the user turns off the second rotary motor 41 and turns on the hydraulic cylinder 2 to cut the rubber strip. After the rubber strip is cut, the user turns on the second rotary motor 41 to drive the conveyor belt 4 to rotate. The rubber strip on the conveyor belt 4 is conveyed into the storage box 42, reducing the user's manual collection of the rubber strip.

[0047] When using the plastic strip cutting device of this embodiment, the user first places the hydraulic cylinder 2 on the top plate 20, and welds the telescopic rod of the hydraulic cylinder 2 through the top plate 20 to the connecting plate 22. The protrusion 230 on the top of the cutting blade 23 is inserted into the groove at the bottom of the connecting plate 22. The second screw is screwed into the second screw hole 210 and tightened. At this time, the cutting blade 23 is fixedly connected to the connecting plate 22. The left end of the support plate 1 with the first sliding groove 10 and the sliding opening 101 is fixed to the cross column 11 with screws. Then, the top plate 20 with the first slider 21 is moved into the first sliding groove 10. When the top plate 20 is moved to the corresponding position, the fixing bolt 102 is passed through the sliding opening 101 and connected to the first screw hole 200. The right end of the support plate 1 is connected to the cross column 11 with screws.

[0048] Weld the support plate 1 to the second slider 31 at the corresponding position on the top. Move the moving block 310 with the second groove 312 into the top of the second slider 31. Weld the two rack plates 32 to the corresponding positions of the second slider 31. Weld the bottom of the push plate 311 to the corresponding positions of the moving block 310. Weld the top of the base plate 30 with the support column to the rectangle. Weld the processing plate 3 to the top of the rectangle. Weld the limiting plate 320 to the inner side of the rack plate 32. Connect the top and bottom plates 30 of the support base 330. Connect the first rotary motor. 33 is placed inside the support base 330. The output shaft of the first rotary motor 33 passes through the base plate 30 and is welded to the gear 321. A conveyor belt 4 with a rotating drum 410 is placed inside the support plate 1 at the position corresponding to the outer ring of the base plate 30. The rotating shaft in the middle of the rotating drum 410 is connected to the bearing in the middle of the support plate 1. The second rotary motor 41 is placed on the surface of the fixed plate on the right side of the front end of the support plate 1. The output shaft of the second rotary motor 41 is connected to the rotating shaft of the corresponding rotating drum 410. A storage box 42 is placed at the left end of the conveyor belt 4.

[0049] At this point, the plastic strip cutting device is installed. The user moves the top plate 20 to the desired position according to the scale strip and fixes the adjusted top plate 20 with the fixing bolts 102. The plastic strip is placed on the top left end of the conveyor belt 4. The second rotary motor 41 is turned on to convey the plastic strip to the middle of the two push plates 311. At this time, the control switch of the second rotary motor 41 is turned off, and the conveyor belt 4 stops transporting. The control switch of the first rotary motor 33 connected to the external power supply is turned on, which drives the two push plates 311 to move towards each other until the plastic strip is clamped. The control switch of the hydraulic cylinder 2 is turned on, which drives the cutting blade 23 to cut the plastic strip. After the cutting is completed, the user turns on the first rotary motor 33 to drive the push plates 311 to release the plastic strip, and turns on the second rotary motor 41 to drive the plastic strip into the storage box 42.

Claims

1. A plastic strip cutting device, comprising a support plate (1) symmetrically arranged front and rear, a hydraulic cylinder (2) disposed near the top center of the support plate (1), and a processing plate (3) disposed at the bottom of the hydraulic cylinder (2), characterized in that: The two support plates (1) are provided with first sliding grooves (10) on their opposite sides. The support plates (1) are provided with horizontal columns (11) at both ends. The hydraulic cylinder (2) is provided with a top plate (20) at the bottom. The top plate (20) is provided with a connecting plate (22) at the bottom. The connecting plate (22) is provided with a cutting blade (23) at the bottom. The processing plate (3) is provided with second sliders (31) symmetrically at the bottom. Each second slider (31) is provided with a moving block (310) at the top. The two moving blocks (310) are provided with rack plates (32) on their opposite sides. The two rack plates (32) are provided with a gear (321) in the middle. The gear (321) is provided with a base plate (30) at the bottom. The support plate (1) is provided with a conveyor belt (4) in the middle. The conveyor belt (4) is provided with a storage box (42) at the left end.

2. The plastic strip cutting device according to claim 1, characterized in that: The support plate (1) and the cross column (11) are connected by connecting screw holes (100), and the front end face of the support plate (1) is provided with a sliding opening (101).

3. The plastic strip cutting device according to claim 1, characterized in that: The top plate (20) is provided with a first slider (21) at both the front and rear ends. The first slider (21) has a first screw hole (200) at both the front and rear ends. The first screw hole (200) is provided with a fixing bolt (102). The telescopic rod of the hydraulic cylinder (2) passes through the top plate (20) and is welded and fixed to the connecting plate (22).

4. The plastic strip cutting device according to claim 1, characterized in that: The cutting blade (23) has a protrusion (230) on the top, and the bottom of the connecting plate (22) has a groove corresponding to the protrusion (230). The connecting plate (22) has a second screw hole (210) at both the front and rear ends, and a third screw hole (231) is opened at the front and rear ends of the protrusion (230) corresponding to the second screw hole (210).

5. The plastic strip cutting device according to claim 1, characterized in that: The top of the movable block (310) is provided with a push plate (311), the middle of the movable block (310) is provided with a second sliding groove (312), the movable block (310) is slidably connected with the second slider (31), the outer end of each rack plate (32) is welded and fixed to the movable block (310), and the inner end of each rack plate (32) is provided with a limiting plate (320).

6. The plastic strip cutting device according to claim 1, characterized in that: The bottom of the base plate (30) is provided with a first rotary motor (33), the output shaft of the first rotary motor (33) passes through the base plate (30) and is welded and fixed to the gear (321), and the bottom of the first rotary motor (33) is provided with a support base (330).

7. The plastic strip cutting device according to claim 1, characterized in that: The conveyor belt (4) has a rotating drum (410) inside both the left and right ends. The front end of the rotating drum (410) on the right end is provided with a second rotating motor (41). The output shaft of the second rotating motor (41) passes through the support plate (1) and is welded and fixed to the rotating drum (410).

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