Slitting device for plastic sheet plate extrusion

By employing a design that combines multiple slitting blades and hydraulic telescopic rods in the plastic sheet slitting device, the adjustability and stability issues of the slitting device are solved, enabling stable slitting of plastic sheets of various sizes and specifications.

CN223790520UActive Publication Date: 2026-01-13CHUZHOU JINWEI EXTRUSION EQUIPMENT CO LTD
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Patent Information

Application Number
CN202423003997.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2026-01-13
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

Existing plastic sheet cutting devices are inadequate in terms of cutting adjustability and stability, making it difficult to adapt to processing needs of various sizes and specifications.

Method used

Multiple slitting blades are used in conjunction, and the position of the slitting blades can be adjusted by means of hydraulic telescopic rods and moving parts. Combined with pressing rollers and limiting structures, cutting stability is ensured.

Benefits of technology

It achieves stable slitting of plastic sheets and plates, is suitable for processing various sizes and specifications, and improves the adjustability and stability of slitting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic sheet plate processing, and particularly discloses a slitting device for plastic sheet plate extrusion, which comprises a rack and a support frame, and is characterized by further comprising a conveying roller group and a winding mechanism which are arranged on the rack, a first hydraulic telescopic rod for adjusting the height of the mounting cover is mounted on the supporting frame, a pressing strip is connected to the bottom of the mounting cover, a moving seat is slidably connected in the mounting cover, a cutter is mounted at the bottom of the moving seat, a mounting frame connected to the bottom of the moving seat is arranged on one side of the cutter, and the mounting frame is rotationally connected with a pressing roller; according to the utility model, a plurality of slitting knives are matched, the plastic sheet can be cut into a target width, the positions of the slitting knives are adjustable, the positions can be switched according to slitting requirements, and the slitting device is suitable for processing the plastic sheet with various sizes and specifications; and meanwhile, the pressing roller moves along with the cutting knife to limit the plastic sheet plate in a matched mode, so that the plastic sheet plate can be stably cut.
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Description

Technical Field

[0001] This utility model relates to the field of plastic sheet processing technology, specifically a slitting device for extruding plastic sheets. Background Technology

[0002] During the production of plastic sheets, continuous extrusion is carried out. Depending on the different subsequent usage requirements, slitting and other cutting operations are required to cut them into target lengths or widths, and then they are rolled up for later use.

[0003] A plastic sheet slitting device disclosed in existing patent publication number CN216000624U includes a base, with support plates on both sides of the top of the base, and electric push rods fixedly connected to both sides of the bottom of the support plates. The bottom ends of the electric push rods are fixedly connected to the top of the base. A rodless cylinder is fixedly connected between the two support plates, and a slitting blade is fixedly connected to the bottom of the movable block of the rodless cylinder. A top plate is provided on the top of the support plates, and a first hydraulic cylinder runs through all four sides of the top of the top plate. The bottom end of the output shaft of the first hydraulic cylinder extends to the bottom of the top plate, and two pressure plates are provided at the bottom of the top plate. A cutting table is fixedly connected to the top of the base. The first hydraulic cylinder lowers to drive the pressure plates to lower and fix the plastic sheet, and then the electric push rod drives the slitting blade to rise and fall. The rodless cylinder drives the slitting blade to reciprocate horizontally to slit the plastic sheet.

[0004] The aforementioned device can slit plastic sheets during use, but the adjustability and stability of the slitting blade still need improvement. To address these issues, a slitting device for extruding plastic sheets is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a slitting device for extruding plastic sheets and plates 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 slitting device for extruding plastic sheets and plates, comprising a frame and a support frame, characterized in that it further comprises:

[0008] Conveyor roller assembly and winding mechanism mounted on the frame;

[0009] A mounting cover, wherein a first hydraulic telescopic rod for adjusting the height of the mounting cover is mounted on the support frame, a pressing strip is connected to the bottom of the mounting cover, a movable seat is slidably connected inside the mounting cover, a cutting blade is mounted on the bottom of the movable seat, a mounting bracket connected to the bottom of the movable seat is provided on one side of the cutting blade, a pressing roller is rotatably connected to the mounting bracket, and a moving component for driving the movable seat to move horizontally is mounted on the mounting cover; and

[0010] A fixed frame is provided, on which a second hydraulic telescopic rod for adjusting the height of the fixed frame is installed. A sleeve rod is connected to the bottom of the fixed frame, and a movable sleeve is slidably sleeved on the sleeve rod. A slitting blade is installed at the bottom of the movable sleeve, and a limiting member for limiting the position of the movable sleeve on the sleeve rod is installed on the movable sleeve.

[0011] In one alternative: the conveyor roller assembly is provided in two sets, and the mounting cover and fixing frame are arranged between the two sets of conveyor roller assemblies.

[0012] In one alternative: a support plate mounted on the frame is provided between the two sets of conveying rollers, the support plate corresponding to the positions of the pressing strip and the pressing roller.

[0013] In one alternative embodiment: the moving component includes a guide rod and a lead screw, the guide rod being connected inside a mounting cover, the lead screw being rotatably connected inside the mounting cover, the moving seat having a sliding hole that slidably engages with the guide rod and a threaded hole that threadedly engages with the lead screw, and a motor for driving the lead screw to rotate is mounted on the mounting cover.

[0014] In one alternative embodiment: the limiting member includes a moving strip and a positioning strip. The moving strip is fixedly connected to the moving sleeve. The sleeve rod is provided with a moving groove for the bottom end of the moving strip to slide. The moving groove is provided with a plurality of limiting holes that are inserted and engaged with the bottom end of the positioning strip. A protrusion is connected to one side of the positioning strip. The moving strip is provided with a lifting groove for the protrusion to slide. A spring installed in the lifting groove is connected to the bottom of the protrusion.

[0015] In one alternative: the cutting blade is positioned between the mounting bracket and the pressing strip.

[0016] In one alternative: an anti-slip pad is attached to the bottom of the pressing strip.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In this invention, multiple slitting blades work together to cut plastic sheets to the target width. The position of the slitting blades is adjustable and can be switched according to the slitting requirements, making it suitable for processing plastic sheets of various sizes and specifications. When the plastic sheet needs to be cross-cut, the first hydraulic telescopic rod adjusts the mounting cover downward, the moving part adjusts the moving seat horizontally, the cutting blade performs the cutting operation, and the pressing roller moves accordingly to limit the plastic sheet, so that the plastic sheet can be stably cut. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the winding mechanism in this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the mounting components on the fixing frame in this utility model.

[0022] Figure 4 This is a schematic diagram of the mounting component on the mounting cover in this utility model.

[0023] In the diagram: 11. Frame; 12. Conveyor roller assembly; 13. Winding mechanism; 14. Support frame; 15. Mounting cover; 16. First hydraulic telescopic rod; 17. Fixed frame; 18. Second hydraulic telescopic rod; 19. Sleeve rod; 20. Moving sleeve; 21. Slitting knife; 22. Moving strip; 23. Positioning strip; 24. Moving groove; 25. Limiting hole; 26. Moving seat; 27. Cutting knife; 28. Mounting frame; 29. ​​Pressing roller; 30. Guide rod; 31. Lead screw; 32. Pressing strip. Detailed Implementation

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] 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.

[0026] Please see Figures 1-4 In this embodiment, a slitting device for extruding plastic sheets and plates includes a frame 11 and a support frame 14, characterized in that it further includes:

[0027] The conveyor roller assembly 12 and the winding mechanism 13 are mounted on the frame 11;

[0028] Mounting cover 15, the support frame 14 is equipped with a first hydraulic telescopic rod 16 for adjusting the height of mounting cover 15, the bottom of mounting cover 15 is connected to a pressing strip 32, a movable seat 26 is slidably connected inside mounting cover 15, a cutting blade 27 is installed at the bottom of movable seat 26, a mounting bracket 28 connected to the bottom of movable seat 26 is provided on one side of cutting blade 27, the mounting bracket 28 is rotatably connected to pressing roller 29, a moving part for driving movable seat 26 to move horizontally is installed on mounting cover 15; and a fixing frame 17, the support frame 14 is equipped with a second hydraulic telescopic rod 18 for adjusting the height of fixing frame 17, the bottom of fixing frame 17 is connected to sleeve rod 19, a movable sleeve 20 is slidably sleeved on sleeve rod 19, a sliding cutter 21 is installed at the bottom of movable sleeve 20, and a limiting part for limiting the position of movable sleeve 20 on sleeve rod 19 is installed on movable sleeve 20;

[0029] Using the above scheme, the conveyor roller group 12 is used to convey the plastic sheet, and multiple cutting blades 21 are used to cut the plastic sheet to the target width. When the plastic sheet needs to be cut horizontally, the first hydraulic telescopic rod 16 adjusts the mounting cover 15 to move down, the moving part adjusts the moving seat 26 to move horizontally, the cutting blade 27 performs the cutting operation, and the pressing roller 29 moves accordingly to limit the plastic sheet.

[0030] Furthermore, the conveyor roller group 12 is provided in two sets, and the mounting cover 15 and the fixing frame 17 are arranged between the two sets of conveyor roller groups 12; the conveyor roller group 12 can convey sheet materials.

[0031] Furthermore, a support plate is provided between the two sets of conveying roller groups 12 and mounted on the frame 11. The support plate corresponds to the position of the pressing strip 32 and the pressing roller 29. The pressing strip 32 presses and limits the sheet material, the bottom of the sheet material contacts the support plate, and the pressing roller 29 rolls on the top of the sheet material during movement. The support plate supports the rolling of the pressing roller 29.

[0032] like Figure 4 As shown, the movable component includes a guide rod 30 and a lead screw 31. The guide rod 30 is connected inside the mounting cover 15, and the lead screw 31 is rotatably connected inside the mounting cover 15. The movable seat 26 is provided with a sliding hole that slides with the guide rod 30 and a threaded hole that threads with the lead screw 31. The mounting cover 15 is equipped with a motor for driving the lead screw 31 to rotate. When the mounting cover 15 is lowered, the pressing strip 32 presses against the top of the support plate, pressing and fixing the sheet material. At this time, the cutting blade 27 is placed on one side of the sheet material. The motor drives the lead screw 31 to rotate, which can drive the movable seat 26 to move, and the cutting blade 27 performs the cutting operation.

[0033] like Figure 3As shown, the limiting component includes a moving strip 22 and a positioning strip 23. The moving strip 22 is fixedly connected to the moving sleeve 20. The sleeve rod 19 is provided with a moving groove 24 for the bottom end of the moving strip 22 to slide. The moving groove 24 is provided with a plurality of limiting holes 25 that are inserted and cooperate with the bottom end of the positioning strip 23. A protrusion is connected to one side of the positioning strip 23. The moving strip 22 is provided with a lifting groove for the protrusion to slide. A spring installed in the lifting groove is connected to the bottom of the protrusion.

[0034] When the slitting blade 21 needs to be adjusted, the positioning strip 23 can be pulled to stretch the spring. The bottom of the positioning strip 23 moves away from the limiting hole 25, and the moving sleeve 20 slides on the sleeve rod 19 to move to the target position. The positioning strip 23 is then released, and under the tension of the spring, the bottom end of the positioning strip 23 is inserted into the corresponding limiting hole 25, restricting the movement of the moving sleeve 20 and completing the fixation of the moving sleeve 20, which facilitates the subsequent slitting of the slitting blade 21 at the target position.

[0035] Furthermore, the cutting blade 27 is positioned between the mounting frame 28 and the pressing strip 32; the cutting blade 27 moves to cut the sheet material, while the pressing strip 32 remains stationary to press and fix one side of the sheet material, the mounting frame 28 moves with the movable seat 26, and the pressing roller 29 presses and fixes the cut sheet material as it moves.

[0036] Furthermore, the bottom of the pressing strip 32 is connected to an anti-slip pad; this improves the stability of fixing the sheet material while reducing pressure damage to the sheet material.

[0037] The working principle of this utility model is as follows: the conveyor roller group 12 cooperates to convey the plastic sheet, and multiple cutting blades 21 cooperate to cut the plastic sheet into the target width. When the plastic sheet needs to be cut horizontally, the first hydraulic telescopic rod 16 adjusts the mounting cover 15 to move down, the moving part adjusts the moving seat 26 to move horizontally, the motor drives the lead screw 31 to rotate, which can drive the moving seat 26 to move, the cutting blade 27 performs the cutting operation, the pressing strip 32 presses and limits the sheet, the bottom of the sheet contacts the support plate, the pressing roller 29 rolls on the top of the sheet during movement, and the support plate supports the rolling of the pressing roller 29.

[0038] When the position of the slitting blade 21 needs to be adjusted, the positioning strip 23 can be pulled to stretch the spring. The bottom of the positioning strip 23 moves away from the limiting hole 25, and the moving sleeve 20 slides on the sleeve rod 19 to move to the target position. The positioning strip 23 is released, and under the tension of the spring, the bottom end of the positioning strip 23 is placed into the corresponding limiting hole 25, which restricts the movement of the moving sleeve 20 and completes the fixation of the moving sleeve 20, which facilitates the subsequent slitting of the slitting blade 21 at the target position.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A slitting device for plastic sheet extrusion comprising a frame (11) and a support frame (14), characterized in that, Also include: The conveying roller group (12) and the winding mechanism (13) are installed on the rack (11); The mounting cover (15) is installed on the support frame (14), and a first hydraulic telescopic rod (16) for adjusting the height of the mounting cover (15) is installed on the support frame (14). The bottom of the mounting cover (15) is connected with a pressing strip (32). The mounting cover (15) is slidably connected with a moving seat (26). The bottom of the moving seat (26) is provided with a cutting knife (27). One side of the cutting knife (27) is provided with a mounting frame (28) connected to the bottom of the moving seat (26). The mounting frame (28) is rotatably connected with a pressing roller (29). A moving part for driving the horizontal movement of the moving seat (26) is installed on the mounting cover (15); and The fixed frame (17) is installed on the support frame (14), and a second hydraulic telescopic rod (18) for adjusting the height of the fixed frame (17) is installed on the support frame (14). The bottom of the fixed frame (17) is connected with a sleeve rod (19). The sleeve rod (19) is slidably connected with a moving sleeve (20). The bottom of the moving sleeve (20) is provided with a slitting knife (21). The moving sleeve (20) is provided with a limiting part for limiting the position of the moving sleeve (20) on the sleeve rod (19).

2. The slitting apparatus for plastic sheet board extrusion according to claim 1, characterized in that: The conveying roller group (12) is provided with two groups. The mounting cover (15) and the fixed frame (17) are arranged between the two groups of conveying roller groups (12).

3. The slitting apparatus for plastic sheet board extrusion according to claim 2, characterized in that: A support plate is arranged between the two groups of conveying roller groups (12) and is installed on the rack (11). The support plate corresponds to the positions of the pressing strip (32) and the pressing roller (29).

4. The slitting device for plastic sheet board material extrusion according to claim 1, characterized in that: The moving part includes a guide rod (30) and a lead screw (31). The guide rod (30) is connected in the mounting cover (15). The lead screw (31) is rotatably connected in the mounting cover (15). The moving seat (26) is provided with a sliding hole slidably matched with the guide rod (30) and a threaded hole threadedly matched with the lead screw (31). A motor for driving the rotation of the lead screw (31) is installed on the mounting cover (15).

5. The slitting device for plastic sheet board material extrusion according to claim 1, characterized in that: The limiting part includes a moving strip (22) and a positioning strip (23). The moving strip (22) is fixedly connected to the moving sleeve (20). The sleeve rod (19) is provided with a moving groove (24) for the sliding of the bottom end of the moving strip (22). The moving groove (24) is provided with a plurality of limiting holes (25) for the plug-in cooperation of the bottom end of the positioning strip (23). One side of the positioning strip (23) is connected with a protrusion. The moving strip (22) is provided with a lifting groove for the sliding of the protrusion. The bottom of the protrusion is connected with a spring installed in the lifting groove.

6. The slitting device for plastic sheet board material extrusion according to claim 1, characterized in that: The cutting knife (27) is arranged between the mounting frame (28) and the pressing strip (32).

7. The slitting device for plastic sheet board material extrusion according to claim 1, characterized in that: The bottom of the pressing strip (32) is connected with an anti-skid pad.

Citation Information

Patent Citations

  • Plastic sheet slitting device

    CN216000624U