Shearing structure for machining pla sheets

Abstract

The utility model relates to the technical field of pla sheets, in particular to a shearing structure for pla sheet processing, which is characterized in that a supporting frame is fixedly connected to the right side of the upper end of a base, a cross-shaped transmission shaft is rotatably connected to the lower left side of the interior of the supporting frame, and rotating sliding blocks are slidably connected to the outer sides of the front end and the rear end of the cross-shaped transmission shaft; a hydraulic rod can stretch out and draw back under the action of a hydraulic machine, so that a lifting cutter can longitudinally cut a pla sheet, a cross-shaped transmission shaft can rotate through rotation of a first motor, the cross-shaped transmission shaft can rotate through rotation of a second motor, and therefore the pla sheet can be cut, and the cutting efficiency is improved. And a second motor is rotated to enable a bidirectional screw rod to rotate, so that a transmission plate can drive the rotating sliding block to move back and forth, and the device can cut and process the pla sheet at different positions, so that the pla sheet can be subjected to one-time forming and shearing treatment.

Description

Technical Field

[0001] The utility model relates to a shearing structure for processing a PLA sheet material, and belongs to the technical field of PLA sheets. Background Art

[0002] PLA sheet refers to polylactic acid sheet. Polylactic acid is a new type of bio-based and renewable biodegradable material. It is made from starch raw materials from renewable plant resources. The starch raw materials are saccharified to obtain glucose, which is then fermented with glucose and certain strains of bacteria to produce high-purity lactic acid, which is then synthesized into polylactic acid of a certain molecular weight through chemical synthesis. The PLA degradable sheet production line has the advantages of environmental protection, degradability, and good physical properties. It has broad application prospects and is expected to gain a larger market share in packaging, food containers, medical devices and other fields.

[0003] The existing patent number is CN220741300U, which is a shearing structure for processing PET sheets. This device is equipped with a conduction inside the frame, and two blocks are installed on one side of the frame. When the PET sheet cutting position is transported to the bottom of the cutter, the two blocks clamp the PET sheet to limit the position. When the cutter cuts the PET sheet, it plays a limiting support role to prevent the PET sheet from being deformed and bent, thereby improving the yield rate. Through the setting of the electric telescopic rod, the connecting rod can be driven to adjust the position, thereby driving the position of the contact switch on the connecting plate to be adjusted, and the adjustment of the connection can be achieved without the staff removing the switch bracket. The purpose of the touch switch position is to improve the convenience of its adjustment, but this device can only perform one-way cutting when in use, and cannot perform edge and longitudinal cutting processing on the sheet as required, and then after the horizontal cutting of the sheet, some sheets do not meet the use requirements, and need to be cut again, and the one-time forming cutting effect cannot be achieved; and this device does not have a sheet control feeding structure, and it is difficult to automatically control the required cutting position, and when cutting the PLA sheet, due to the PLA sheet having a certain flexibility, it is easy to have wrinkled parts, and the cutting and trimming of the wrinkled parts cannot achieve the ideal effect, affecting the final shearing processing quality of the PLA sheet. Utility Model Content

[0004] The purpose of the utility model is to provide a shearing structure for processing PLA sheets to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A shearing structure for processing PLA sheets comprises a base, a support frame and a lifting cutter, wherein the right side of the upper end of the base is fixedly connected to the support frame, the middle position of the inner upper end of the support frame is fixedly connected to a hydraulic rod, the lower end of the hydraulic rod is fixedly connected to the lifting cutter, the lower left side of the inner part of the support frame is rotatably connected to a cross transmission shaft, the outer sides of the front and rear ends of the cross transmission shaft are slidably connected to rotating sliders, the outer side of the rotating slider is fixedly connected to a cutting blade, the left side of the upper end of the base is rotatably connected to a conveying roller, the upper end of the conveying roller is provided with a clamping roller, the clamping roller is rotatably connected to the base, a flattening roller is provided on the right side of the conveying roller, and the flattening roller is rotatably connected to the base.

[0007] Furthermore, a hydraulic press is fixedly connected to the upper end of the support frame, and the hydraulic press is sealedly connected to the hydraulic rod.

[0008] Furthermore, the front and rear sides of the upper end of the lifting cutter are fixedly connected to a limiting telescopic rod, the limiting telescopic rod is fixedly connected to the support frame, and the lower end of the lifting cutter is provided with a shearing seat, which is fixedly connected to the base.

[0009] Furthermore, a first motor is fixedly connected to the lower left side of the front end of the support frame, an output shaft of the first motor is fixedly connected to a cross transmission shaft, a support roller is provided at the lower end of the cross transmission shaft, and the support roller is rotatably connected to the support frame.

[0010] Furthermore, a second motor is provided on the upper side of the first motor, the second motor is fixedly connected to the support frame, a bidirectional screw is fixedly connected to the rear end of the output shaft of the second motor, a transmission plate is spirally connected to the front and rear sides of the bidirectional screw, and the transmission plate is rotationally connected to the rotating slider.

[0011] Furthermore, a fixed box is fixedly connected to the left side of the front end of the base, a third motor is fixedly connected to the lower left end of the fixed box, a worm is fixedly connected to the right end of the output shaft of the third motor, a worm is meshingly connected to a worm wheel at the upper end of the worm, and the worm wheel is fixedly connected to the conveying roller.

[0012] Furthermore, a pulley block is rotatably connected to the left side of the rear end of the base, and the inner pulleys of the pulley block are respectively fixedly connected to the clamping roller and the flattening roller.

[0013] The beneficial effects of the utility model are:

[0014] The utility model sets a hydraulic press to enable the hydraulic rod to be retractable, and the limit telescopic rod is set to limit the lifting cutter, so that the lifting cutter can perform longitudinal cutting on the PLA sheet, and the cross transmission shaft can be rotated by rotating the first motor, so that the rotating slider can drive the cutting blade to rotate, and cooperate with the support roller to perform edge trimming on the PLA sheet, and the bidirectional screw can be rotated by rotating the second motor, so that the transmission plate can drive the rotating slider to move back and forth, so that the device can perform cutting processing on the PLA sheet at different positions, so as to perform one-time forming shearing processing on the PLA sheet, the utility model enables the worm to drive the worm wheel to rotate by rotating the third motor, so that the conveying roller can rotate, so that the PLA sheet can be rolled and conveyed, and the clamping roller can be driven to rotate by the movement of the PLA sheet, so that the pulley group can drive the flattening roller to rotate, so that the flattening roller can stretch the PLA sheet to avoid wrinkles on the PLA sheet and affect the shearing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of a shearing structure for processing PLA sheets of the utility model;

[0017] Figure 2 It is a schematic diagram of the installation structure of a cross transmission shaft, a bidirectional screw and a transmission plate of a shearing structure for processing PLA sheets of the utility model;

[0018] Figure 3 It is a cross-sectional view of the installation structure of a fixing box of a shearing structure for processing PLA sheets of the utility model;

[0019] Figure 4 It is a left view of the installation structure of a flattening roller of a shearing structure for processing PLA sheets of the utility model;

[0020] Figure 5 It is a schematic diagram of the rear end components of a clamping roller and a flattening roller of a shearing structure for processing PLA sheets of the utility model;

[0021] Numbers in the figure: 1. base; 2. support frame; 3. hydraulic rod; 4. lifting cutter; 5. cross transmission shaft; 6. rotating slider; 7. cutting blade; 8. conveying roller; 9. clamping roller; 10. flattening roller; 11. hydraulic press; 12. limit telescopic rod; 13. shear seat; 14. first motor; 15. support roller; 16. second motor; 17. bidirectional screw; 18. transmission plate; 19. fixed box; 20. third motor; 21. worm; 22. worm wheel; 23. pulley block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1 Please refer to Figure 1-Figure 5 , the utility model provides a technical solution:

[0024] A shearing structure for processing PLA sheets comprises a base 1, a support frame 2 and a lifting cutter 4. The right side of the upper end of the base 1 is fixedly connected to the support frame 2. The middle position of the inner upper end of the support frame 2 is fixedly connected to a hydraulic rod 3. The lower end of the hydraulic rod 3 is fixedly connected to the lifting cutter 4. The lower left side of the inner part of the support frame 2 is rotatably connected to a cross transmission shaft 5. The outer sides of the front and rear ends of the cross transmission shaft 5 are slidably connected to a rotating slider 6. The outer side of the rotating slider 6 is fixedly connected to a cutting blade 7. The upper end of the support frame 2 is fixedly connected to a hydraulic press 11. The hydraulic press 11 is sealedly connected to the hydraulic rod 3, the front and rear sides of the upper end of the lifting cutter 4 are fixedly connected to the limited telescopic rod 12, the limited telescopic rod 12 is fixedly connected to the support frame 2, the lower end of the lifting cutter 4 is provided with a shearing seat 13, the shearing seat 13 is fixedly connected to the base 1, the front lower left side of the support frame 2 is fixedly connected to a first motor 14, the output shaft of the first motor 14 is fixedly connected to the cross transmission shaft 5, the lower end of the cross transmission shaft 5 is provided with a supporting roller 15, the supporting roller 15 is rotatably connected to the support frame 2, and the first A second motor 16 is provided on the upper side of a motor 14, and the second motor 16 is fixedly connected to the support frame 2. A bidirectional screw 17 is fixedly connected to the rear end of the output shaft of the second motor 16, and a transmission plate 18 is spirally connected to the front and rear sides of the bidirectional screw 17. The transmission plate 18 is rotatably connected to the rotating slider 6. The hydraulic press 11 is provided to enable the hydraulic rod 3 to be retracted and extended, and the limiting telescopic rod 12 is provided to limit the lifting cutter 4, so that the lifting cutter 4 can perform longitudinal cutting on the PLA sheet, and the cross transmission shaft 5 can be rotated by rotating the first motor 14, so that the rotating slider 6 can drive the cutting blade 7 to rotate, and cooperate with the support roller 15 to trim the PLA sheet, and the bidirectional screw 17 can be rotated by rotating the second motor 16, so that the transmission plate 18 can drive the rotating slider 6 to move forward and backward, so that the device can perform cutting processing on the PLA sheet at different positions, so as to facilitate the one-time forming and shearing processing of the PLA sheet.

[0025] Example 2 Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5The difference between this embodiment and the embodiment 1 is that: a conveying roller 8 is rotatably connected to the left side of the upper end of the base 1, a clamping roller 9 is provided at the upper end of the conveying roller 8, and the clamping roller 9 is rotatably connected to the base 1, a flattening roller 10 is provided on the right side of the conveying roller 8, and the flattening roller 10 is rotatably connected to the base 1, a fixed box 19 is fixedly connected to the left side of the front end of the base 1, a third motor 20 is fixedly connected to the lower left end of the fixed box 19, a worm 21 is fixedly connected to the right end of the output shaft of the third motor 20, a worm gear 22 is meshedly connected to the upper end of the worm gear 21, and the worm gear 22 is fixedly connected to the conveying roller 8, and the rear end of the base 1 The left side of the end is rotatably connected with a pulley group 23, and the inner pulleys of the pulley group 23 are respectively fixedly connected to the clamping roller 9 and the flattening roller 10. The rotation of the third motor 20 enables the worm 21 to drive the worm wheel 22 to rotate, so that the conveying roller 8 can rotate, and then the PLA sheet can be rolled and conveyed, and the movement of the PLA sheet can drive the clamping roller 9 to rotate, so that the pulley group 23 can drive the flattening roller 10 to rotate, and then the flattening roller 10 can stretch the PLA sheet to avoid wrinkles in the PLA sheet and affect the shearing quality.

[0026] Working principle of the utility model: when the device is in use, the hydraulic rod 3 can be extended and retracted by setting the hydraulic press 11, and the lifting cutter 4 can be limited by the setting limit telescopic rod 12, so that the lifting cutter 4 can perform longitudinal cutting on the PLA sheet, and the cross transmission shaft 5 can be rotated by rotating the first motor 14, so that the rotating slider 6 can drive the cutting blade 7 to rotate, and the support roller 15 can be used to trim the PLA sheet, and the bidirectional screw 17 can be rotated by rotating the second motor 16, so that the transmission plate 18 can drive the cutting blade 7 to rotate. The movable rotating slider 6 moves back and forth, so that the device can cut the PLA sheet at different positions, so as to facilitate the one-time forming shearing of the PLA sheet, and the rotation of the third motor 20 enables the worm 21 to drive the worm wheel 22 to rotate, so that the conveying roller 8 can rotate, and then the PLA sheet can be rolled and conveyed, and the movement of the PLA sheet can drive the clamping roller 9 to rotate, so that the pulley group 23 can drive the flattening roller 10 to rotate, and then the flattening roller 10 can stretch the PLA sheet to avoid wrinkles on the PLA sheet and affect the shearing quality.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shearing structure for processing PLA sheets, comprising a base (1), a support frame (2) and a lifting cutter (4), characterized in that: The upper right side of the base (1) is fixedly connected to a support frame (2), the middle position of the inner upper end of the support frame (2) is fixedly connected to a hydraulic rod (3), the lower end of the hydraulic rod (3) is fixedly connected to a lifting cutter (4), the lower left side of the inner part of the support frame (2) is rotatably connected to a cross transmission shaft (5), the front and rear ends of the cross transmission shaft (5) are slidably connected to the outer side of the rotating slider (6), the outer side of the rotating slider (6) is fixedly connected to a cutting blade (7), the upper left side of the base (1) is rotatably connected to a conveying roller (8), the upper end of the conveying roller (8) is provided with a clamping roller (9), the clamping roller (9) is rotatably connected to the base (1), and a flattening roller (10) is provided on the right side of the conveying roller (8), the flattening roller (10) is rotatably connected to the base (1).

2. A shearing structure for processing PLA sheets according to claim 1, characterized in that: The upper end of the support frame (2) is fixedly connected to a hydraulic press (11), and the hydraulic press (11) is sealedly connected to the hydraulic rod (3).

3. A shearing structure for processing PLA sheets according to claim 1, characterized in that: The front and rear sides of the upper end of the lifting cutter (4) are fixedly connected to a limiting telescopic rod (12), the limiting telescopic rod (12) is fixedly connected to the support frame (2), and the lower end of the lifting cutter (4) is provided with a shearing seat (13), and the shearing seat (13) is fixedly connected to the base (1).

4. A shearing structure for processing PLA sheets according to claim 1, characterized in that: A first motor (14) is fixedly connected to the lower left side of the front end of the support frame (2); an output shaft of the first motor (14) is fixedly connected to a cross transmission shaft (5); a support roller (15) is provided at the lower end of the cross transmission shaft (5); and the support roller (15) is rotatably connected to the support frame (2).

5. A shearing structure for processing PLA sheets according to claim 4, characterized in that: A second motor (16) is provided on the upper side of the first motor (14); the second motor (16) is fixedly connected to the support frame (2); a bidirectional screw (17) is fixedly connected to the rear end of the output shaft of the second motor (16); a transmission plate (18) is spirally connected to the front and rear sides of the bidirectional screw (17); and the transmission plate (18) is rotatably connected to the rotating slider (6).

6. A shearing structure for processing PLA sheets according to claim 1, characterized in that: A fixed box (19) is fixedly connected to the left side of the front end of the base (1); a third motor (20) is fixedly connected to the lower left end of the fixed box (19); a worm (21) is fixedly connected to the right end of the output shaft of the third motor (20); a worm wheel (22) is meshedly connected to the upper end of the worm wheel (21); and the worm wheel (22) is fixedly connected to the conveying roller (8).

7. A shearing structure for processing PLA sheets according to claim 1, characterized in that: A pulley block (23) is rotatably connected to the left side of the rear end of the base (1), and the inner pulleys of the pulley block (23) are respectively fixedly connected to the clamping roller (9) and the flattening roller (10).

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