PET plastic sheet cutting device

The automatic correction mechanism, which combines a motor-driven positive and negative threaded screw and a slider with a hydraulic rod and a compression spring, solves the problem of low cutting accuracy and improves cutting precision and subsequent application effects.

CN223849458UActive Publication Date: 2026-01-30SUZHOU NANOPLASTIC NEW MATERIAL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520206856.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-01-30
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

Existing PET plastic sheet cutting devices suffer from reduced cutting accuracy and negatively impact subsequent application results due to the tendency for manual sheet placement to shift during the cutting process.

Method used

The automatic correction and cutting of PET plastic sheets is achieved by using a combination of a motor-driven positive and negative threaded screw and a slider, along with a hydraulic rod and a compression spring, thereby improving cutting accuracy.

Benefits of technology

The automatic correction mechanism improves the accuracy of PET plastic sheet cutting and enhances its subsequent use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223849458U_ABST
    Figure CN223849458U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of PET (Polyethylene Terephthalate) plastic sheet cutting, and discloses a PET plastic sheet cutting device which comprises a workbench, a cutting die is arranged in the middle of the upper end face of the workbench, a plurality of supporting rods are arranged on the upper end face of the workbench, the supporting rods are movably connected with a movable plate, and a pressing plate is arranged on the bottom end face of the movable plate. A supporting plate is installed at the top end of the supporting rod, a hydraulic rod is installed on the upper end face of the supporting plate, the output end of the hydraulic rod penetrates through the bottom end face of the supporting plate and is connected with the upper end face of the movable plate, a cavity is formed in the workbench, a pair of first limiting grooves are formed in the two sides of the top of the cavity, and a pair of second limiting grooves are formed in the other two sides of the top of the cavity; a plurality of telescopic mechanisms are installed at the bottom of the cavity, a mounting base is installed at the top ends of the telescopic mechanisms, a first sliding groove is formed in the upper end face of the mounting base, and a first correcting mechanism is installed in the first sliding groove. The device is simple and reasonable in structure, novel in design, easy to operate, high in practicability and convenient to widely popularize and use.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to PET plastic sheet cutting technical field, more specifically, especially relates to a PET plastic sheet cutting device. BACKGROUND

[0002] PET plastic sheet cutting device is a kind of equipment specially used to cut PET plastic sheet (usually film or board) into required size and shape, PET sheet is widely used in packaging, electronics, automobile, building and other fields, therefore, in the production process, accurate cutting is very important.

[0003] Current part PET plastic sheet cutting device needs staff to manually place sheet on cutting mold during cutting process, then operates pressing plate to press down to complete cutting, however, manual placement is prone to sheet deviation, and error can occur during cutting, which not only reduces cutting accuracy, but also causes adverse effects on subsequent application effect of PET plastic sheet.

[0004] Therefore, in view of the above, the existing structure and the lack are improved, and a PET plastic sheet cutting device is provided to achieve the purpose of having more practical value. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a kind of PET plastic sheet cutting device, by following specific technical means:

[0006] A kind of PET plastic sheet cutting device, including workbench, cutting mold is installed in the upper end face middle position of the workbench, the upper end face of the workbench is installed with several support rods, several support rods are movably connected with movable plate, the bottom end surface of the movable plate is installed with pressing plate, the top of support rod is installed with support plate, the upper end face of the support plate is installed with hydraulic rod, the output end of the hydraulic rod is connected with the upper end surface of movable plate by penetrating the bottom end surface of support plate, chamber is equipped in the workbench, a pair of limit slot one is equipped in the top of the chamber two sides, a pair of limit slot two is equipped in the top of the chamber other two sides, several telescopic mechanisms are installed in the bottom of the chamber, the top of several telescopic mechanisms is installed with mounting seat, the upper end face of the mounting seat is equipped with sliding groove one, the sliding groove one is installed with correction mechanism one, the upper end face of the mounting seat is equipped with sliding groove two below sliding groove one, the sliding groove two is installed with correction mechanism two.

[0007] Further, the correction mechanism one includes a pair of sliding blocks, a correction block one and a reverse screw rod one, the reverse screw rod one is rotationally connected in the sliding groove one, a pair of sliding blocks are threadedly connected to the two ends of the reverse screw rod one, the upper end face of the sliding block is installed with the correction block one, and the top end of the correction block one penetrates through the limiting groove one and extends above the limiting groove one.

[0008] Further, one side of the mounting seat is installed with the motor one, and one end of the reverse screw rod one penetrates through one side of the mounting seat and is connected with the output end of the motor one.

[0009] Further, the correction mechanism two includes a pair of sliding blocks, a correction block two and a reverse screw rod two, the reverse screw rod two is rotationally connected in the sliding groove two, a pair of sliding blocks are threadedly connected to the two ends of the reverse screw rod two, the upper end face of the sliding block is installed with the correction block two, and the top end of the correction block two penetrates through the limiting groove two and extends above the limiting groove two.

[0010] Further, one side of the mounting seat is installed with the motor two, and one end of the reverse screw rod two penetrates through one side of the mounting seat and is connected with the output end of the motor two.

[0011] Further, the telescopic mechanism includes a telescopic sleeve, a telescopic rod and a compression spring, the upper end face of the telescopic sleeve is provided with a telescopic groove, the bottom of the telescopic groove is installed with the compression spring, the top end of the compression spring is connected with a limiting block, the upper end face of the limiting block is installed with the telescopic rod, and the top end of the telescopic rod is connected with the bottom end face of the mounting seat.

[0012] Further, one side of the workbench is installed with a controller.

[0013] Compared with the prior art, the utility model has the advantages of the following:

[0014] Through cooperation of the motor one, the reverse screw rod one, the sliding block one, the correction block one, the motor two, the reverse screw rod two, the sliding block two and the correction block two, after the staff places the PET plastic sheet on the cutting die, the motor one is started, the motor one drives the reverse screw rod one to rotate, the reverse screw rod one is threadedly connected with a pair of sliding blocks one, so that the reverse screw rod one drives a pair of sliding blocks one to move to the middle when rotating, a pair of sliding blocks one drive a pair of correction blocks one to move to the middle, meanwhile, the motor two is started, the motor two drives the reverse screw rod two to rotate, the reverse screw rod two is threadedly connected with a pair of sliding blocks two, so that the reverse screw rod two drives a pair of sliding blocks two to move to the middle when rotating, a pair of sliding blocks two drive a pair of correction blocks two to move to the middle, the cooperation of a pair of correction blocks one and a pair of correction blocks two can quickly correct the position of the PET plastic sheet on the cutting die, so that the cutting accuracy can be improved, and the subsequent use effect of the PET plastic sheet can be improved.

[0015] By using the telescopic sleeve, compression spring, and telescopic rod in combination, as the pressure plate moves downward, it pushes a pair of correction blocks one and a pair of correction blocks two downward. The correction blocks one and two push the telescopic rod into the telescopic groove through the mounting base. After the PET plastic sheet is cut, as the pressure plate moves upward, under the force of the compression spring, the compression spring pushes the telescopic rod upward through the limit block, causing the correction blocks one and two to move upward. This allows the correction blocks one and two to return to their initial positions, facilitating the correction blocks one and two to continue correcting the position of the next PET plastic sheet. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0017] Figure 2 This is a frontal cross-sectional view of the present invention.

[0018] Figure 3 This is a three-dimensional schematic diagram of a portion of the structure of this utility model.

[0019] Figure 4 This is a top sectional view of the mounting base in this utility model.

[0020] Figure 5 This is a utility model Figure 2 An enlarged diagram of A in the diagram.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Workbench; 101. Chamber; 102. Limiting groove one; 103. Limiting groove two; 2. Cutting mold; 3. Movable plate; 301. Pressure plate; 4. Support plate; 401. Support rod; 402. Hydraulic rod; 5. Telescopic mechanism; 501. Telescopic sleeve; 502. Telescopic rod; 503. Compression spring; 504. Telescopic groove; 505. Limiting block; 6. Mounting base; 601. Slide groove one; 602. Slide groove two; 7. Controller; 8. Correction mechanism one; 801. Positive and negative threaded screw one; 802. Slider one; 803. Correction block one; 9. Correction mechanism two; 901. Positive and negative threaded screw two; 902. Slider two; 903. Correction block two; 10. Motor one; 11. Motor two. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] As attached Figure 1 To be continued Figure 5 As shown:

[0028] This utility model provides a PET plastic sheet cutting device, including a workbench 1, a cutting mold 2 installed at the middle of the upper surface of the workbench 1, a plurality of support rods 401 installed on the upper surface of the workbench 1, a movable plate 3 movably connected to the support rods 401, a pressure plate 301 installed on the bottom surface of the movable plate 3, a support plate 4 installed at the top of the support rods 401, a hydraulic rod 402 installed on the upper surface of the support plate 4, and the output end of the hydraulic rod 402 passing through the bottom surface of the support plate 4 and connecting to the upper surface of the movable plate 3. The worktable 1 has a chamber 101. A pair of limiting grooves 102 are provided on both sides of the top of the chamber 101. A pair of limiting grooves 103 are provided on the other two sides of the top of the chamber 101. Several telescopic mechanisms 5 are installed at the bottom of the chamber 101. A mounting seat 6 is installed at the top of the telescopic mechanisms 5. A sliding groove 601 is provided on the upper surface of the mounting seat 6. A correction mechanism 8 is installed in the sliding groove 601. A sliding groove 602 is provided on the upper surface of the mounting seat 6 below the sliding groove 601. A correction mechanism 9 is installed in the sliding groove 602.

[0029] The calibration mechanism 8 includes a screw rod 801 with positive and negative threads, a slider 802, and a calibration block 803. The screw rod 801 with positive and negative threads is rotatably connected in the slide groove 601. A pair of sliders 802 are threaded to both ends of the screw rod 801. The calibration block 803 is installed on the upper end face of the slider 802. The top end of the calibration block 803 passes through the limiting groove 102 and extends above the limiting groove 102.

[0030] Among them, a motor-10 is installed on one side of the mounting base 6, and one end of the positive and negative threaded screw-801 passes through one side of the mounting base 6 and is connected to the output end of the motor-10.

[0031] The second calibration mechanism 9 includes a positive and negative threaded screw 901, a slider 902, and a calibration block 903. The positive and negative threaded screw 901 is rotatably connected in the slide groove 602. A pair of sliders 902 are threaded to both ends of the positive and negative threaded screw 901. The calibration block 903 is installed on the upper end face of the slider 902. The top of the calibration block 903 passes through the limiting groove 103 and extends above the limiting groove 103.

[0032] Among them, a motor 2 11 is installed on one side of the mounting base 6, and one end of the positive and negative threaded screw 2 901 passes through one side of the mounting base 6 and is connected to the output end of the motor 2 11.

[0033] The telescopic mechanism 5 includes a telescopic sleeve 501, a telescopic rod 502, and a compression spring 503. The upper end face of the telescopic sleeve 501 is provided with a telescopic groove 504. The bottom of the telescopic groove 504 is equipped with a compression spring 503. The top end of the compression spring 503 is connected to a limit block 505. The upper end face of the limit block 505 is equipped with a telescopic rod 502. The top end of the telescopic rod 502 is connected to the bottom end face of the mounting base 6.

[0034] Among them, a controller 7 is installed on one side of the workbench 1, and the controller 7 can play a control role.

[0035] The working principle of this embodiment:

[0036] After the worker places the PET plastic sheet onto the cutting mold 2, they start motor 10. Motor 10 drives the positive and negative threaded screw 801 to rotate. Since the positive and negative threaded screw 801 is threadedly connected to a pair of sliders 802, the rotation of the positive and negative threaded screw 801 moves the pair of sliders 802 towards the center. The pair of sliders 802 then move the pair of correction blocks 803 towards the center. Simultaneously, motor 21 is started, driving the positive and negative threaded screw 901 to rotate. Since the positive and negative threaded screw 901 is threadedly connected to sliders 902, the rotation of the positive and negative threaded screw 901 moves the pair of sliders 902 towards the center. The pair of sliders 902 then move the pair of correction blocks 903 towards the center. Through the cooperation of the pair of correction blocks 803 and the pair of correction blocks 903, the position of the PET plastic sheet on the cutting mold 2 can be quickly corrected. Then, hydraulic rod 402 is started. The output end of hydraulic rod 402... The movable plate 3 pushes the pressure plate 301 downward. During the downward movement of the pressure plate 301, the pressure plate 301 pushes a pair of correction blocks 803 and a pair of correction blocks 903 downward. The correction blocks 803 and 903 push the telescopic rod 502 into the telescopic groove 504 through the mounting base 6. The pressure plate 301 presses the PET plastic sheet onto the cutting mold 2 and cuts the PET plastic sheet into the required shape and size. After the PET plastic sheet is cut, during the upward movement of the pressure plate 301, under the force of the compression spring 503, the compression spring 503 pushes the telescopic rod 502 upward through the limit block 505, causing the correction blocks 803 and 903 to move upward. This allows the correction blocks 803 and 903 to return to their initial positions, facilitating the correction blocks 803 and 903 to continue correcting the position of the next PET plastic sheet.

[0037] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A PET plastic sheet cutting device comprising a worktable (1), characterized in that: The upper end surface of the workbench (1) is provided with a cutting die (2), the upper end surface of the workbench (1) is provided with a plurality of supporting rods (401), a plurality of supporting rods (401) are movably connected with a movable plate (3), the bottom end surface of the movable plate (3) is provided with a pressing plate (301), the top end of the supporting rod (401) is provided with a supporting plate (4), the upper end surface of the supporting plate (4) is provided with a hydraulic rod (402), the output end of the hydraulic rod (402) penetrates the bottom end surface of the supporting plate (4) and is connected with the upper end surface of the movable plate (3), the workbench (1) is provided with a cavity (101), a pair of limiting grooves one (102) are arranged on the top of the cavity (101), a pair of limiting grooves two (103) are arranged on the other two sides of the top of the cavity (101), a plurality of telescopic mechanisms (5) are arranged on the bottom of the cavity (101), the top end of the telescopic mechanism (5) is provided with a mounting seat (6), the upper end surface of the mounting seat (6) is provided with a sliding groove one (601), the sliding groove one (601) is provided with a correction mechanism one (8), the upper end surface of the mounting seat (6) is provided with a sliding groove two (602) below the sliding groove one (601), and the sliding groove two (602) is provided with a correction mechanism two (9).

2. The PET plastic sheet cutting device as claimed in claim 1, wherein: The correction mechanism one (8) comprises a reversible screw rod one (801), a sliding block one (802) and a correction block one (803), the reversible screw rod one (801) is rotatably connected in the sliding groove one (601), a pair of sliding blocks one (802) are threadedly connected at the two ends of the reversible screw rod one (801), and the correction block one (803) is arranged on the upper end surface of the sliding block one (802) and extends above the limiting groove one (102).

3. The PET plastic sheet cutting apparatus of claim 2, wherein: One side of the mounting seat (6) is provided with a motor one (10), and one end of the reversible screw rod one (801) penetrates one side of the mounting seat (6) and is connected with the output end of the motor one (10).

4. The PET plastic sheet cutting apparatus of claim 1, wherein: The correction mechanism two (9) comprises a reversible screw rod two (901), a sliding block two (902) and a correction block two (903), the reversible screw rod two (901) is rotatably connected in the sliding groove two (602), a pair of sliding blocks two (902) are threadedly connected at the two ends of the reversible screw rod two (901), the correction block two (903) is arranged on the upper end surface of the sliding block two (902) and extends above the limiting groove two (103).

5. The PET plastic sheet cutting apparatus of claim 4, wherein: One side of the mounting seat (6) is provided with a motor two (11), and one end of the reversible screw rod two (901) penetrates one side of the mounting seat (6) and is connected with the output end of the motor two (11).

6. The PET plastic sheet cutting apparatus of claim 1, wherein: The telescopic mechanism (5) comprises a telescopic sleeve (501), a telescopic rod (502) and a compression spring (503), the upper end face of the telescopic sleeve (501) is provided with a telescopic groove (504), the bottom of the telescopic groove (504) is provided with the compression spring (503), the top end of the compression spring (503) is connected with a limiting block (505), the upper end face of the limiting block (505) is provided with the telescopic rod (502), and the top end of the telescopic rod (502) is connected with the bottom end face of the mounting base (6).

7. The PET plastic sheet cutting apparatus of claim 1, wherein: One side of the workbench (1) is provided with a controller (7).