Anti-deformation paper corner guard cutting device

Abstract

This invention discloses an anti-deformation paper corner protector cutting device, relating to the field of paper corner protector production technology. It includes a V-shaped conveyor frame, with a base frame fixedly connected to its lower end. Support frames are fixedly connected to both sides of the base frame, and a feeding trough is fixedly connected between the support frames. The feeding trough has a V-groove at its lower end that matches the V-shaped conveyor frame. A pushing component for pushing the paper corner protectors is provided on the V-shaped conveyor frame. A secondary V-shaped bracket is fixedly connected to the end of the base frame away from the feeding trough. During cutting, the invention uses a first V-shaped pressure plate and a second V-shaped pressure plate to clamp and fix the paper corner protectors, preventing deformation under stress and ensuring a smooth cut and high-quality finished product. Simultaneously, the inclined flipping block, in conjunction with a guide plate and a collection box, enables automatic feeding and collection of the cut paper corner protectors, eliminating the need for manual collection and reducing labor costs and safety risks.

Description

Technical Field

[0001] This invention relates to the field of paper corner protector production technology, specifically a deformation-resistant paper corner protector cutting device. Background Technology

[0002] Paper corner protectors are long, strip-shaped corner protectors made from multiple layers of kraft paper or yarn tube paper through gluing, pressing, and forming. They typically have a V-shaped cross-section and are mainly used to protect the edges and corners of goods during packaging and transportation, preventing damage from collisions and squeezing during stacking and handling. In the production and processing of paper corner protectors, the continuously formed long strips need to be cut into shorter segments of specified lengths according to different packaging size requirements. Currently, commonly used paper corner protector cutting equipment is mostly sawing or shearing cutting machines, which use saw blades or cutters to cut the paper corner protectors to a fixed length.

[0003] However, in actual use, existing paper corner protector cutting equipment requires operators to place and align the long strips of paper corner protectors one by one at the feeding station. During the cutting process, operators also need to continuously monitor the output side to remove the cut corner protector segments one by one. This manual feeding and unloading method not only consumes a lot of labor and increases labor costs, but also makes it difficult to match the manual operation rhythm with the cutting cycle, easily causing waiting or material accumulation at the cutting station and reducing production efficiency. Therefore, we provide an anti-deformation paper corner protector cutting device to solve the aforementioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a corner protector cutting device for anti-deformation paper to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A paper corner protector cutting device for preventing deformation includes a V-shaped conveyor frame, a base frame fixedly connected to the lower end of the V-shaped conveyor frame, support frames fixedly connected to both sides of the base frame, a feeding trough fixedly connected between the support frames, a V-groove adapted to the V-shaped conveyor frame being opened at the lower end of the feeding trough, and a pushing component for pushing the paper corner protector on the V-shaped conveyor frame. The base frame is fixedly connected to a secondary V-shaped bracket at the end away from the feeding trough, and the end of the secondary V-shaped bracket is provided with a positioning component for positioning the cutting length of the paper corner protector; A mounting frame is fixedly connected to one side of the base frame away from the feeding trough. A support vertical plate is fixedly connected to one side of the mounting frame. A cutting component for cutting paper corner protectors is provided on the support vertical plate. The mounting frame is equipped with a fixing component for fixing the paper corner protectors during cutting. A support frame is fixedly connected to one side of the base frame near the guide plate. A guide plate is fixedly connected to the support frame. A collection box for collecting paper corner protectors is provided below the guide plate.

[0006] As a further aspect of the present invention: the pushing component includes a threaded rod, which is rotatably connected inside a V-shaped conveyor frame. A sliding groove is provided at the upper end of the V-shaped conveyor frame, and an inner sliding block is slidably connected inside the sliding groove. The inner sliding block is threadedly connected to the inner sliding block. A pushing V-plate is slidably connected to the upper end of the V-shaped conveyor frame, and the pushing V-plate is fixedly connected to the upper end of the inner sliding block. A servo motor for driving the threaded rod to rotate is fixedly connected to one end of the V-shaped conveyor frame.

[0007] As a further embodiment of the present invention: the positioning component includes a sliding square rod, which is fixedly connected to the end of the secondary V-shaped bracket. A sliding sleeve is slidably connected to the sliding square rod. A pressure sensor for sensing the paper corner protector is provided on the side of the sliding sleeve opposite to the secondary V-shaped bracket. A locking knob for locking the position of the sliding sleeve is provided on one side of the sliding sleeve.

[0008] As a further embodiment of the present invention: the cutting assembly includes two slide rails, which are respectively fixedly connected to the positions on both sides of the supporting vertical plate. A sliding seat is slidably connected between the two slide rails. A drive motor is fixedly connected to the sliding seat, and a cutting blade is fixedly connected to the output end of the drive motor. A lifting assembly for driving the sliding seat to move up and down is provided at the lower end of the supporting vertical plate.

[0009] As a further embodiment of the present invention: the lifting assembly includes a third electric push rod, which is fixedly connected to the lower end of the support vertical plate, and the output end of the third electric push rod is fixedly connected to the lower end of the sliding seat.

[0010] As a further embodiment of the present invention: the fixing component includes a second electric push rod, which is fixedly connected to one end of the mounting frame near the V-shaped conveyor frame. A first V-shaped pressure plate is fixedly connected to the output end of the second electric push rod. Limiting rods are fixedly connected to both sides of the first V-shaped pressure plate. The limiting rods are slidably connected to the supports on the mounting frame. A first electric push rod is fixedly connected to one end of the mounting frame near the secondary V-shaped bracket. A second V-shaped pressure plate is fixedly connected to the output end of the first electric push rod. Sliding rods are fixedly connected to both sides of the second V-shaped pressure plate. The sliding rods are slidably connected to the supports on the mounting frame. The second V-shaped pressure plate is also provided with a feeding component for feeding the cut paper corner protectors to the guide plate.

[0011] As a further embodiment of the present invention: the feeding assembly includes a vertical plate frame, which is fixedly connected to both ends of the second V-shaped pressure plate near the mounting frame. A flipping seat is fixedly connected to the lower end of the vertical plate frame near the second V-shaped pressure plate. An inclined flipping block is rotatably connected inside the flipping seat. A torsion spring is provided at the pivot of the inclined flipping block and the flipping seat. An avoidance notch is provided on the secondary V-shaped bracket to avoid the inclined flipping block.

[0012] As a further aspect of the present invention: the distance between the V-groove at the lower end of the feeding trough and the V-shaped conveyor frame is greater than the thickness of one paper corner protector, but less than the sum of the thicknesses of two paper corner protectors.

[0013] As a further aspect of the present invention, the feeding trough is provided with a plurality of observation slots.

[0014] As a further embodiment of the present invention: support feet are installed at both ends of the support frame at the lower end of the base frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves automatic, one-by-one feeding of paper corner protectors by limiting the distance between the feeding trough and the V-shaped conveyor frame and by cooperating with the pushing V-plate. The feeding trough can stack multiple paper corner protectors, reducing the frequency of manual feeding and improving the stability and continuity of feeding.

[0016] During the cutting process, the invention uses a first V-shaped pressure plate and a second V-shaped pressure plate to clamp and fix the paper corner protectors, preventing them from deforming under stress and ensuring a smooth cut and high-quality finished product. At the same time, the invention utilizes a sloping flipping block in conjunction with a guide plate and a collection box to achieve automatic unloading and collection of the paper corner protectors after cutting, eliminating the need for manual handling and reducing labor costs and safety risks. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a partial structural diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the cutting component in this invention.

[0020] Figure 4 This is a schematic diagram of the feeding assembly in this invention.

[0021] Figure 5 This is a partial cross-sectional view of the V-shaped conveyor frame in this invention.

[0022] The components include: 1. V-shaped conveyor frame; 2. Servo motor; 3. Pushing V-plate; 4. Support frame; 5. Feed chute; 6. Observation chute; 7. Sliding slot; 8. Mounting frame; 9. First V-shaped pressure plate; 10. Second V-shaped pressure plate; 11. Pressure sensor; 12. Guide plate; 13. Collection box; 14. Cutting blade; 15. Base frame; 17. Sliding square rod; 18. Support plate frame; 19. Locking knob; 20. Sliding sleeve frame; 21. Secondary V-shaped bracket; 22. Sliding rod; 23. First electric push rod; 24. Second electric push rod; 25. Limiting rod; 26. Supporting vertical plate; 27. Drive motor; 28. Slide rail; 29. ​​Sliding seat; 30. Motor frame; 31. Third electric push rod; 32. Avoidance notch; 33. Inclined flipping block; 34. Flipping seat; 35. Threaded rod; 36. Inner sliding block; 37. Vertical plate frame. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1-5 In this embodiment of the invention, an anti-deformation paper corner protector cutting device includes a V-shaped conveyor frame 1. Support legs are installed at both ends of the support frame at the lower end of the base frame 15. The base frame 15 is fixedly connected to the lower end of the V-shaped conveyor frame 1. Support frames 4 are fixedly connected to both sides of the base frame 15. A feeding trough 5 is fixedly connected between the support frames 4. The feeding trough 5 is used to stack and place paper corner protectors before cutting. Multiple paper corner protectors can be placed by stacking, so there is no need for workers to frequently feed the paper. Several observation slots 6 are provided on the feeding trough 5. The observation slots 6 are used to observe the remaining amount of paper corner protectors stacked in the feeding trough 5.

[0025] The lower end of the feeding trough 5 is provided with a V-groove adapted to the V-shaped conveyor frame 1. The distance between the V-groove at the lower end of the feeding trough 5 and the V-shaped conveyor frame 1 is greater than the thickness of one paper corner protector and less than the sum of the thicknesses of two paper corner protectors. The V-shaped conveyor frame 1 is provided with a pushing component for pushing the paper corner protectors. The pushing component includes a threaded rod 35, which is rotatably connected inside the V-shaped conveyor frame 1. The upper end of the V-shaped conveyor frame 1 is provided with a sliding groove 7, and an inner sliding block 36 is slidably connected inside the sliding groove 7. The inner sliding block 36 is threadedly connected to the inner sliding block 36. A pushing V-plate is slidably connected to the upper surface of the V-shaped conveyor frame 1. 3. The upper end of the pusher V-plate 3 is fixedly connected to the inner sliding block 36. One end of the V-shaped conveyor frame 1 is fixedly connected to a servo motor 2 for driving the threaded rod 35 to rotate. During operation, the servo motor 2 drives the threaded rod 35 to rotate. The rotation of the threaded rod 35 causes the inner sliding block 36 to move along the sliding groove 7. The movement of the inner sliding block 36 causes the pusher V-plate 3 to move. The pusher V-plate 3 pushes the paper corner protectors that are leaking out from the bottom of the feeding trough 5 towards the direction of the first V-shaped pressure plate 9. When pushing the paper corner protectors, since only one paper corner protector can pass through the gap between the bottom of the feeding trough 5 and the V-shaped conveyor frame 1, the pusher V-plate 3 pushes only one at a time, thereby achieving stable feeding.

[0026] A secondary V-shaped bracket 21 is fixedly connected to one end of the base frame 15 away from the feeding trough 5. The end of the secondary V-shaped bracket 21 is provided with a positioning component for positioning the cutting length of the paper corner protector. The positioning component includes a sliding square rod 17, which is fixedly connected to the end of the secondary V-shaped bracket 21. A sliding sleeve 20 is slidably connected to the sliding square rod 17. A pressure sensor 11 for sensing the paper corner protector is provided on the side of the sliding sleeve 20 opposite to the secondary V-shaped bracket 21. A pressure sensor 11 for adjusting the sliding sleeve 20 is provided on one side of the sliding sleeve 20. The locking knob 19 is locked at position 0. The position of the pressure sensor 11 can be adjusted according to the required size of the paper corner protector. When adjusting, first loosen the locking knob 19, then slide the sliding sleeve 20 to adjust the position. After the position adjustment is completed, rotate the locking knob 19 to lock it. During operation, when the end of the paper corner protector touches the pressure sensor 11, the pressure sensor 11 feeds back a signal to the controller of the equipment. Then the controller controls the cutting component, pushing component and fixing component to perform corresponding actions to achieve the cutting of the paper corner protector.

[0027] A mounting bracket 8 is fixedly connected to one side of the base frame 15 away from the material feeding trough 5. A supporting vertical plate 26 is fixedly connected to one side of the mounting bracket 8. The supporting vertical plate 26 is equipped with a cutting assembly for cutting paper corner protectors. The cutting assembly includes two slide rails 28, which are fixedly connected to both sides of the supporting vertical plate 26. A sliding seat 29 is slidably connected between the two slide rails 28. A drive motor 27 is fixedly connected to the sliding seat 29. A cutting blade 14 is fixedly connected to the output end of the drive motor 27. The supporting vertical plate 26... The lower end is provided with a lifting assembly for driving the sliding seat 29 to move up and down; the lifting assembly includes a third electric push rod 31, which is fixedly connected to the lower end of the support vertical plate 26, and the output end of the third electric push rod 31 is fixedly connected to the lower end of the sliding seat 29; during cutting, the third electric push rod 31 drives the sliding seat 29 to move upward along the slide rail 28, and at the same time, the drive motor 27 drives the cutting blade 14 to rotate at high speed. The movement of the sliding seat 29 drives the drive motor 27 to move upward synchronously, so that the cutting blade 14 contacts the paper corner protector, thereby realizing the cutting of the paper corner protector.

[0028] The mounting frame 8 is equipped with a fixing component for securing the paper corner protectors during cutting. The fixing component includes a second electric push rod 24, which is fixedly connected to one end of the mounting frame 8 near the V-shaped conveyor frame 1. A first V-shaped pressure plate 9 is fixedly connected to the output end of the second electric push rod 24. Limiting rods 25 are fixedly connected to both sides of the first V-shaped pressure plate 9, and the limiting rods 25 are slidably connected to supports on the mounting frame 8. A first electric push rod 23 is fixedly connected to one end of the mounting frame 8 near the secondary V-shaped bracket 21, and a second V-shaped... The pressure plate 10 has sliding rods 22 fixedly connected to both sides of the second V-shaped pressure plate 10. The sliding rods 22 are slidably connected to the supports on the mounting frame 8. The second V-shaped pressure plate 10 is also provided with a feeding assembly for feeding the cut paper corner protectors to the guide plate 12. Before cutting, the second electric push rod 24 and the first electric push rod 23 drive the first V-shaped pressure plate 9 and the second V-shaped pressure plate 10 to move downward to clamp and fix the paper corner protectors, so as to avoid deformation of the paper corner protectors during cutting and ensure the cutting effect. After cutting, the first electric push rod 23 and the second electric push rod 24 are reset to release the fixation of the paper corner protectors.

[0029] The feeding assembly includes a vertical plate frame 37, which is fixedly connected to both ends of the second V-shaped pressure plate 10 near the mounting frame 8. A flipping seat 34 is fixedly connected to the lower end of the vertical plate frame 37 near the second V-shaped pressure plate 10. An inclined flipping block 33 is rotatably connected inside the flipping seat 34. A torsion spring is provided at the pivot of the inclined flipping block 33 and the flipping seat 34. An avoidance notch 32 is provided on the secondary V-shaped bracket 21 to avoid the inclined flipping block 33. When the second V-shaped pressure plate 10 moves downward, the inclined flipping block 33 will touch the paper corner protector and then rotate accordingly, so that the inclined flipping block 33 crosses the paper corner protector. When the second V-shaped pressure plate 10 returns to its original position, the rotation of the inclined flipping block 33 will be blocked by the flipping seat 34. Therefore, the inclined flipping block 33 can hook up the cut paper corner protector and let the paper corner protector fall into the collection box 13 along the guide plate 12, thereby realizing the automatic collection of paper corner protectors without the need for manual picking.

[0030] A support frame 18 is fixedly connected to one side of the base frame 15 near the guide plate 12. The guide plate 12 is fixedly connected to the support frame 18. A collection box 13 for collecting paper corner protectors is provided below the guide plate 12.

[0031] The working principle of this invention is as follows: First, multiple paper corner protectors to be cut are stacked in the feeding trough 5. The remaining amount is observed through the observation slot 6. According to the required cutting length, the locking knob 19 is loosened, and the sliding sleeve 20 is slid along the sliding square rod 17 to a suitable position and then locked, so that the pressure sensor 11 is aligned with the positioning point. After the equipment is started, the servo motor 2 drives the threaded rod 35 to rotate, which drives the inner sliding block 36 to move along the sliding groove 7, thereby causing the pushing V plate 3 to push the single paper corner protector that is leaking out from the bottom of the feeding trough 5 to be fed into the direction of the auxiliary V-shaped bracket 21 along the V-shaped conveyor frame 1. Since the distance between the lower V groove of the feeding trough 5 and the V-shaped conveyor frame 1 is greater than the thickness of one paper corner protector and less than the sum of the thicknesses of two paper corner protectors, the pushing V plate 3 pushes only one paper corner protector at a time. When the end of the paper corner protector touches the pressure sensor 11, the pressure sensor 11 sends a signal to the controller. The controller controls the second electric push rod 24 and the first electric push rod 23 to push the first V-shaped pressure plate 9 and the second V-shaped pressure plate 10 down respectively. Under the guidance of the limit rod 25 and the sliding rod 22, the paper corner protector is clamped and fixed to prevent deformation during cutting. Then, the third electric push rod 31 pushes the sliding seat 29 to rise along the slide rail 28. At the same time, the drive motor 27 drives the cutting blade 14 to rotate at high speed to complete the fixed-length cutting of the paper corner protector. After cutting, the first electric push rod 23 and the second electric push rod 24 are reset, the first V-shaped pressure plate 9 and the second V-shaped pressure plate 10 are released from fixing the paper corner protector. When the second V-shaped pressure plate 10 is reset upward, the flipping seat 34 fixed on the vertical plate frame 37 blocks the rotation of the inclined flipping block 33, so that the inclined flipping block 33 hooks the cut paper corner protector from the clearance notch 32. The paper corner protector slides into the collection box 13 along the guide plate 12 supported by the support plate frame 18, completing the automatic feeding and collection. There is no need for manual picking up the material one by one. At the same time, the pusher V plate 3 continues to push the next section of paper corner protector, realizing continuous cutting, thereby reducing the operation of manual feeding and picking up the material one by one.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A corner protector cutting device for anti-deformation paper, comprising a V-shaped conveyor frame (1), characterized in that: The lower end of the V-shaped conveyor frame (1) is fixedly connected to a base frame (15), and both sides of the base frame (15) are fixedly connected to support frames (4). A feeding trough (5) is fixedly connected between the support frames (4). The lower end of the feeding trough (5) is provided with a V-groove that is compatible with the V-shaped conveyor frame (1). The V-shaped conveyor frame (1) is provided with a pushing component for pushing paper corner protectors. The base frame (15) is fixedly connected to a secondary V-shaped bracket (21) at one end away from the feeding trough (5). The end of the secondary V-shaped bracket (21) is provided with a positioning component for positioning the cutting length of the paper corner protector. A mounting frame (8) is fixedly connected to one side of the base frame (15) away from the feeding trough (5). A support vertical plate (26) is fixedly connected to one side of the mounting frame (8). A cutting component for cutting paper corner protectors is provided on the support vertical plate (26). The mounting frame (8) is equipped with a fixing component for fixing the paper corner protectors during cutting. The base frame (15) is fixedly connected to a support frame (18) on one side near the guide plate (12). The support frame (18) is fixedly connected to the guide plate (12). A collection box (13) for collecting paper corner protectors is provided below the guide plate (12).

2. The anti-deformation paper corner protector cutting device according to claim 1, characterized in that, The pushing component includes a threaded rod (35), which is rotatably connected inside a V-shaped conveyor frame (1). A sliding groove (7) is provided at the upper end of the V-shaped conveyor frame (1). An inner sliding block (36) is slidably connected inside the sliding groove (7). The inner sliding block (36) is threadedly connected to the inner sliding block (36). A pushing V-plate (3) is slidably connected to the upper surface of the V-shaped conveyor frame (1). The pushing V-plate (3) is fixedly connected to the upper end of the inner sliding block (36). A servo motor (2) for driving the threaded rod (35) to rotate is fixedly connected to one end of the V-shaped conveyor frame (1).

3. The anti-deformation paper corner protector cutting device according to claim 1, characterized in that, The positioning component includes a sliding square rod (17), which is fixedly connected to the end of the sub-V-shaped bracket (21). A sliding sleeve (20) is slidably connected to the sliding square rod (17). A pressure sensor (11) for sensing the paper corner protector is provided on the side of the sliding sleeve (20) opposite to the sub-V-shaped bracket (21). A locking knob (19) for locking the position of the sliding sleeve (20) is provided on one side of the sliding sleeve (20).

4. The anti-deformation paper corner protector cutting device according to claim 1, characterized in that, The cutting assembly includes two slide rails (28), which are fixedly connected to the two sides of the support vertical plate (26). A sliding seat (29) is slidably connected between the two slide rails (28). A drive motor (27) is fixedly connected to the sliding seat (29). A cutting blade (14) is fixedly connected to the output end of the drive motor (27). A lifting assembly for driving the sliding seat (29) to move up and down is provided at the lower end of the support vertical plate (26).

5. The anti-deformation paper corner protector cutting device according to claim 4, characterized in that, The lifting assembly includes a third electric push rod (31), which is fixedly connected to the lower end of the support vertical plate (26), and the output end of the third electric push rod (31) is fixedly connected to the lower end of the sliding seat (29).

6. The anti-deformation paper corner protector cutting device according to claim 1, characterized in that, The fixing component includes a second electric push rod (24), which is fixedly connected to one end of the mounting frame (8) near the V-shaped conveyor frame (1). The output end of the second electric push rod (24) is fixedly connected to a first V-shaped pressure plate (9). Limiting rods (25) are fixedly connected to both sides of the first V-shaped pressure plate (9). The limiting rods (25) are slidably connected to the supports on the mounting frame (8). The end of the mounting frame (8) near the secondary V-shaped bracket (21) is fixedly connected to a first electric push rod (23). The output end of the first electric push rod (23) is fixedly connected to a second V-shaped pressure plate (10). Sliding rods (22) are fixedly connected to both sides of the second V-shaped pressure plate (10). The sliding rods (22) are slidably connected to the supports on the mounting frame (8). The second V-shaped pressure plate (10) is also provided with a feeding component for feeding the cut paper corner protectors to the guide plate (12).

7. The anti-deformation paper corner protector cutting device according to claim 6, characterized in that, The feeding assembly includes a vertical plate frame (37), which is fixedly connected to both ends of the second V-shaped pressure plate (10) near the mounting frame (8). The lower end of the vertical plate frame (37) near the second V-shaped pressure plate (10) is fixedly connected to a flipping seat (34). An inclined flipping block (33) is rotatably connected inside the flipping seat (34). A torsion spring is provided at the pivot of the inclined flipping block (33) and the flipping seat (34). An avoidance notch (32) is provided on the auxiliary V-shaped bracket (21) to avoid the inclined flipping block (33).

8. The anti-deformation paper corner protector cutting device according to claim 1, characterized in that, The distance between the V-groove at the lower end of the feeding trough (5) and the V-shaped conveyor frame (1) is greater than the thickness of one paper corner protector, but less than the sum of the thicknesses of two paper corner protectors.

9. The anti-deformation paper corner protector cutting device according to claim 1, characterized in that, The material feeding trough (5) is provided with several observation slots (6).

10. The anti-deformation paper corner protector cutting device according to claim 1, characterized in that, Both ends of the support frame at the lower end of the base frame (15) are equipped with support feet.

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