PET sheet high-precision cutting device

Abstract

The utility model discloses a kind of PET sheet high-precision cutting equipment, including rack, the inner wall of one side of the upper end of rack is rotatably installed with driving roller, the inner wall of another side of the upper end of rack is rotatably installed with driven roller, transmission belt is wound on the outer wall between driven roller and driving roller, the lower side of transmission belt is equipped with lower connecting plate, corner position at the top of lower connecting plate is all installed with guide rod, the top of a plurality of guide rods is all penetrated through rack and is equipped with two upper connecting seats, the inner wall between upper connecting seat is fixed with strip plate, the outer wall on the side of strip plate is installed with cutter, both sides in cutter inside are equipped with waist type hole, locking bolt is installed on the outer wall of cutter at waist type hole position.The utility model not only is easy to disassemble and replace cutter, to improve the convenience when cutter maintenance, also guarantee the cutting precision of PET sheet when cutting equipment is used, and improve the convenience when cutting equipment is used.

Description

Technical Field

[0001] This utility model relates to the field of sheet cutting technology, specifically a high-precision cutting device for PET sheets. Background Technology

[0002] PET sheets are widely used in packaging, electronics, construction and other fields due to their excellent physical properties, chemical stability and transparency. Cutting is one of the important processes in the processing of PET sheets. The accuracy of cutting directly affects the quality of the product and the effect of subsequent processing. Therefore, developing a high-precision cutting equipment for PET sheets is of great practical significance.

[0003] A PET sheet cutting machine, as described in reference announcement number CN221912137U, includes a support frame with a transmission mechanism. A mounting frame is fixedly mounted on the top of the support frame, and a cutting component for cutting PET sheets is mounted on the mounting frame. The outer surface of the support frame has an adjustment structure for adjusting the tension of the PET sheets. The mounting frame is U-shaped, and a rubber pad is fixedly mounted on the bottom wall of its inner cavity. Inverted T-shaped grooves are formed on both side walls of the inner cavity of the mounting frame, and the interior of these inverted T-shaped grooves is connected to the cutting... The components are connected movably. The cutting component includes a hydraulic push rod, which is fixedly connected to the top of the mounting frame. A movable slider is fixedly installed on the piston rod of the hydraulic push rod through the bottom wall of the inner cavity of the mounting frame. This cutting machine not only facilitates the tension adjustment of the PET sheet in transmission, but also facilitates the cutting of the PET sheet. As can be seen from the above, although this cutting equipment can be well applied, it is usually not convenient to disassemble and assemble the cutting blade component, and therefore it is not easy to replace and maintain the cutting blade. There are certain inconveniences in use, and it needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a high-precision cutting device for PET sheets, in order to solve the problem mentioned in the background art that although the cutting device can be used well, it is usually inconvenient to disassemble and assemble the cutting blade, which makes it difficult to replace and maintain the cutting blade, and there are certain inconveniences in use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision PET sheet cutting device, comprising a frame, a drive roller rotatably mounted on one inner wall of the upper end of the frame, a driven roller rotatably mounted on the other inner wall of the upper end of the frame, a conveyor belt wound around the outer wall between the driven roller and the drive roller, a lower connecting plate provided below the conveyor belt, guide rods installed at the corner positions of the top of the lower connecting plate, and the tops of several guide rods penetrating the frame and mounting two upper connecting seats. A strip plate is fixed on the inner wall between the upper connecting seats. A cutter is installed on the outer wall of one side of the strip plate. Both sides of the cutter are provided with waist-shaped holes. A locking bolt is installed on the outer wall of the cutter at the waist-shaped hole. One end of the locking bolt passes through the waist-shaped hole and is threaded to the outer wall of the strip plate. An L-shaped frame is fixed on the outer wall of the strip plate away from the cutter. A limit bolt is threaded on the top of the L-shaped frame. The bottom end of the limit bolt extends to the inner side of the L-shaped frame and touches the top of the cutter.

[0006] Preferably, a base plate is fixed to the bottom of the frame below the lower connecting plate, and an axle box is provided at the top of the base plate to allow for the movable placement of the shaft.

[0007] Preferably, an electric push rod is installed at the corner position at the top of the axle box. The top of the electric push rod is connected to the bottom of the lower connecting plate. The electric push rod is used to drive the lower connecting plate to perform lifting and lowering operations.

[0008] Preferably, a motor is mounted on the bottom of the frame on one side of the base plate via a bracket, and a drive wheel is mounted on one end of the motor so as to drive the drive wheel to rotate.

[0009] Preferably, a shaft is rotatably mounted inside the axle box, one end of which extends to the outside of the axle box and is fitted with a driven wheel, and the other end of which extends to the outside of the axle box and is fitted with a first eccentric wheel. A transmission belt is wound around the outer wall between the driven wheel and the driving wheel. The transmission belt is configured so that the driven wheel can be driven to rotate when the driving wheel rotates.

[0010] Preferably, the outer wall of the first eccentric wheel away from the shaft is provided with a movable groove, and a linkage arm is movably connected inside the movable groove. A second eccentric wheel is rotatably mounted on the end of the linkage arm away from the movable groove. The inner wall of the second eccentric wheel is connected to one end of the drive roller. The linkage arm is provided so as to drive the second eccentric wheel to rotate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the high-precision PET sheet cutting equipment is not only easy to disassemble and replace the cutter to improve the convenience of cutter maintenance, but also ensures the cutting accuracy of PET sheet when the cutting equipment is used, and improves the convenience of using the cutting equipment.

[0012] (1) By tightening the locking bolt, one end of the locking bolt is screwed out to the outside of the strip plate, and the cutter can be disassembled. When one end of the locking bolt is passed through the waist-shaped hole and screwed into the strip plate, and the bottom end of the limiting bolt is tightened to abut the top of the cutter, the cutter can be bolted and installed on the outer wall of the strip plate, which makes it easy to disassemble and replace the cutter, thereby improving the convenience of cutter maintenance.

[0013] (2) The lower connecting plate is driven to rise and fall by several electric push rods, so that the guide rod is located at the top of the frame and slides up and down, so that it drives the cutter to rise and fall smoothly. The cutter can then accurately cut the PET sheet placed at the top of the conveyor belt, thus ensuring the cutting accuracy of the PET sheet when the cutting equipment is used.

[0014] (3) The motor drives the drive wheel to rotate, which in turn drives the driven wheel to rotate via the transmission belt. This causes the driven wheel to drive the first eccentric wheel to rotate via the shaft. At this time, the lower end of the linkage arm slides inside the movable groove, and the linkage arm drives the second eccentric wheel to rotate, which in turn drives the drive roller to rotate. The drive roller, in conjunction with the driven roller, drives the transmission belt to run, thus electrically adjusting the PET sheet placed at the top of the transmission belt, thereby improving the convenience of using the cutting equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a front view structural diagram of the present invention;

[0017] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a side view of the cutting blade structure of this utility model.

[0019] In the diagram: 1. Frame; 2. Base plate; 3. Axle box; 4. Motor; 5. Drive wheel; 6. Transmission belt; 7. Driven wheel; 8. Shaft; 9. First eccentric wheel; 10. Movable groove; 11. Linkage arm; 12. Second eccentric wheel; 13. Drive roller; 14. Driven roller; 15. Transmission belt; 16. Electric push rod; 17. Lower connecting plate; 18. Guide rod; 19. Upper connecting seat; 20. Strip plate; 21. Cutter; 22. Waist-shaped hole; 23. Locking bolt; 24. L-shaped frame; 25. Limit bolt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figures 1-4 An embodiment of this utility model provides a high-precision PET sheet cutting device, including a frame 1, an active roller 13 rotatably mounted on one inner wall of the upper end of the frame 1, a driven roller 14 rotatably mounted on the other inner wall of the upper end of the frame 1, a conveyor belt 15 wound on the outer wall between the driven roller 14 and the active roller 13, a lower connecting plate 17 is provided below the conveyor belt 15, a base plate 2 is fixed at the bottom of the frame 1 below the lower connecting plate 17, and a shaft box 3 is provided at the top of the base plate 2;

[0022] In use, the shaft 8 can be moved and positioned by the setting of the shaft box 3;

[0023] Electric push rods 16 are installed at the corners of the top of the axle box 3, and the top of the electric push rods 16 is connected to the bottom of the lower connecting plate 17.

[0024] In use, the lower connecting plate 17 is driven to move up and down by the electric push rod 16.

[0025] A motor 4 is mounted on the bottom of the frame 1 on one side of the base plate 2 via a bracket, and a drive wheel 5 is mounted on one end of the motor 4;

[0026] In use, the motor 4 is configured to drive the drive wheel 5 to rotate;

[0027] A shaft 8 is rotatably mounted inside the axle box 3. One end of the shaft 8 extends to the outside of the axle box 3 and is fitted with a driven wheel 7. The other end of the shaft 8 extends to the outside of the axle box 3 and is fitted with a first eccentric wheel 9. A transmission belt 6 is wound around the outer wall between the driven wheel 7 and the driving wheel 5.

[0028] In use, the transmission belt 6 is set so that the driving wheel 5 can drive the driven wheel 7 to rotate when the driving wheel 5 rotates;

[0029] The outer wall of the first eccentric wheel 9 away from the shaft 8 is provided with a movable groove 10. The movable groove 10 is movably connected to the inside of the movable groove 10. The second eccentric wheel 12 is rotatably installed at the end of the movable arm 11 away from the movable groove 10. The inner wall of the second eccentric wheel 12 is connected to one end of the drive roller 13.

[0030] In use, the linkage arm 11 is set to drive the second eccentric wheel 12 to rotate;

[0031] Guide rods 18 are installed at the corners of the top of the lower connecting plate 17. The tops of several guide rods 18 pass through the frame 1 and are installed with two upper connecting seats 19. A strip plate 20 is fixed on the inner wall between the upper connecting seats 19. A cutter 21 is installed on the outer wall of one side of the strip plate 20. The cutter 21 has waist-shaped holes 22 on both sides inside. A locking bolt 23 is installed on the outer wall of the cutter 21 at the waist-shaped hole 22. One end of the locking bolt 23 passes through the waist-shaped hole 22 and is threaded to the outer wall of the strip plate 20. An L-shaped frame 24 is fixed on the outer wall of the strip plate 20 away from the cutter 21. A limit bolt 25 is threaded on the top of the L-shaped frame 24. The bottom end of the limit bolt 25 extends to the inner side of the L-shaped frame 24 and touches the top of the cutter 21.

[0032] In this embodiment, the motor 4 first drives the drive wheel 5 to rotate, which in turn drives the driven wheel 7 to rotate via the transmission belt 6. The driven wheel 7 then drives the first eccentric wheel 9 to rotate via the shaft 8. At this time, the lower end of the linkage arm 11 slides inside the movable groove 10, and the linkage arm 11 drives the second eccentric wheel 12 to rotate. This causes the second eccentric wheel 12 to drive the drive roller 13 to rotate, and the drive roller 13, in conjunction with the driven roller 14, drives the conveyor belt 15 to operate. This electrically adjusts the lateral movement of the PET sheet placed at the top of the conveyor belt 15. Then, several electric push rods 16 drive the lower connecting plate 17 to rise and fall. The guide rod 18 slides up and down on the top of the frame 1, driving the cutter 21 to rise and fall smoothly. The cutter 21 can then precisely cut the PET sheet placed at the top of the conveyor belt 15. Finally, by tightening the locking bolt 23, one end of the locking bolt 23 is screwed out to the outside of the strip plate 20, allowing the cutter 21 to be disassembled. When one end of the locking bolt 23 is passed through the waist-shaped hole 22 and screwed into the strip plate 20, and the bottom end of the limiting bolt 25 is tightened to abut the top of the cutter 21, the cutter 21 can be bolted and installed on the outer wall of the strip plate 20, making it easy to disassemble and maintain the cutter 21, thus completing the use of the cutting equipment.

Claims

1. A high-precision cutting device for PET sheets, characterized in that: Includes a frame (1), on one inner wall of the upper end of the frame (1) a drive roller (13) is rotatably mounted, on the other inner wall of the upper end of the frame (1) a driven roller (14) is rotatably mounted, a conveyor belt (15) is wound around the outer wall between the driven roller (14) and the drive roller (13), a lower connecting plate (17) is provided below the conveyor belt (15), a guide rod (18) is installed at the corner position of the top of the lower connecting plate (17), the tops of several guide rods (18) penetrate the frame (1) and are installed with two upper connecting seats (19), a strip plate (20) is fixed on the inner wall between the upper connecting seats (19), the strip plate (20) 20) A cutter (21) is installed on one side of the outer wall. Both sides of the cutter (21) are provided with waist-shaped holes (22). A locking bolt (23) is installed on the outer wall of the cutter (21) at the waist-shaped hole (22). One end of the locking bolt (23) passes through the waist-shaped hole (22) and is threaded to the outer wall of the strip plate (20). An L-shaped frame (24) is fixed on the outer wall of the strip plate (20) away from the cutter (21). A limit bolt (25) is threaded on the top of the L-shaped frame (24). The bottom end of the limit bolt (25) extends to the inner side of the L-shaped frame (24) and touches the top of the cutter (21).

2. The high-precision PET sheet cutting equipment according to claim 1, characterized in that: The bottom of the frame (1) below the lower connecting plate (17) is fixed with a base plate (2), and the top of the base plate (2) is provided with an axle box (3).

3. The high-precision PET sheet cutting equipment according to claim 2, characterized in that: Electric push rods (16) are installed at the corners of the top of the axle box (3), and the top of the electric push rods (16) is connected to the bottom of the lower connecting plate (17).

4. The high-precision PET sheet cutting equipment according to claim 2, characterized in that: A motor (4) is mounted on the bottom of the frame (1) on one side of the base plate (2) via a bracket, and a drive wheel (5) is mounted on one end of the motor (4).

5. The high-precision PET sheet cutting equipment according to claim 4, characterized in that: A shaft (8) is rotatably mounted inside the axle box (3). One end of the shaft (8) extends to the outside of the axle box (3) and is fitted with a driven wheel (7). The other end of the shaft (8) extends to the outside of the axle box (3) and is fitted with a first eccentric wheel (9). A transmission belt (6) is wound around the outer wall between the driven wheel (7) and the driving wheel (5).

6. The high-precision PET sheet cutting equipment according to claim 5, characterized in that: The first eccentric wheel (9) has a movable groove (10) on the outer wall away from the shaft (8). The movable groove (10) is movably connected to a linkage arm (11). The linkage arm (11) is rotatably mounted with a second eccentric wheel (12) at the end away from the movable groove (10). The inner wall of the second eccentric wheel (12) is connected to one end of the drive roller (13).

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