Paperboard cutting machine with convenient tool changing mechanism

Abstract

The utility model discloses a tool changing mechanism facilitating a paperboard cutting machine, and relates to the technical field of cutting machine equipment. The device comprises a first rack, a through hole is formed in the first rack, a rotating roller is arranged in the through hole, the two ends of the rotating roller are rotationally connected with the two sides of the through hole, tool aprons are rotationally connected to the inner walls of the two sides of the first rack above the rotating roller, and first pressing rollers are rotationally connected to the inner walls of the two sides of the first rack; the two sides of the first rack are fixedly connected with two connecting rods, the ends, away from the first rack, of the connecting rods are fixedly connected with a second rack, a tensioning roller is arranged above the second rack, one end of the second rack is fixedly connected with a first rotating base, the interior of the first rotating base is rotationally connected with an overturning plate, and the top of the overturning plate is fixedly connected with a pressing block. And a second pressing roller is rotationally connected into the pressing block, an overturning mechanism is arranged between the connecting rods on the two sides, the overturning plate is rotated through the overturning mechanism, a space between the first rack and the second rack is created, and an operator can replace the blade conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of cutting machine equipment, and in particular to a cardboard cutting machine with a knife-changing mechanism. Background Art

[0002] A cardboard cutting machine is a mechanical device used to cut cardboard or paper into the desired size and shape. It can be widely used in the fields of cartons, paper boxes, cardboard models, stickers, etc. It can improve production efficiency, reduce manual operations, and has good cutting accuracy and stability.

[0003] A cardboard cutting machine disclosed in an existing Chinese patent publication (authorization announcement number: CN210282522U) can replace the upper conveyor roller of the traditional upper and lower conveyor rollers in the cardboard cutting machine with a feeding device having a squeezing wheel. This allows a worker's hand to be pulled out of the cutting machine by the worker's own pulling if the feeding device is accidentally caught in the cutting machine, thereby ensuring the worker's production safety.

[0004] In the existing cardboard cutting process, the cardboard is mostly transported to the bottom of the cutting wheel by a conveyor belt, and then the cardboard is continuously cut by the cutting wheel. However, after long-term use, the blade becomes worn and needs to be replaced. Usually, the blade needs to be rotated upward by the knife holder, and the operator needs to climb onto the frame to obtain space for replacing the blade, which is relatively inconvenient. Utility Model Content

[0005] The purpose of the present application is to solve the problem that the operator needs to climb onto the frame to obtain space to replace the blade, which is relatively inconvenient. The present application provides a cardboard cutting machine with a convenient blade changing mechanism.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] The top of the turning plate is fixedly connected to the rotating base, and the top of the turning plate is fixedly connected to the turning plate, and the top of the turning plate is fixedly connected to the pressing roller 2, and a turning mechanism is provided between the connecting rods on both sides.

[0008] By adopting the above technical solution, the cardboard is transmitted to the top of the frame two through the conveyor belt. Next, the cardboard is sent into the interior of the frame two. At this time, the tension of the cardboard can be increased by the tensioning roller to maintain the flatness of the cardboard. Then, the cardboard will be sent into the frame one, and the cardboard will be squeezed by the pressing roller one and the pressing roller two, which further improves the flatness of the cardboard during the cutting process. Finally, the cardboard will be conveyed between the rotating roller and the knife holder, and the knife holder will rotate to continuously cut the cardboard. The flip plate is rotated by the flip mechanism, which is convenient for the operator to replace the blade. The discarded cardboard can be effectively collected by the collection mechanism.

[0009] Furthermore, the flipping mechanism includes a horizontal plate fixedly connected between the connecting rods on both sides, and the top two sides of the horizontal plate are fixedly connected to the rotating seat 2, the interior of the rotating seat 2 is rotatably connected to the cylinder 1, the output end of the cylinder 1 is rotatably connected to the rotating seat 3, and the top of the rotating seat 3 is fixedly connected to the bottom of the flipping plate.

[0010] By adopting the above technical solution, the rotating seat three is driven to move upward by starting the cylinder one, and the rotating seat three is fixedly connected to the flip plate, so that the flip plate is flipped upward inside the rotating seat one. When it is rotated to the appropriate angle, the staff drills into the inside of the flip plate, thereby facilitating the replacement of the cutting wheel on the knife seat.

[0011] Furthermore, an annular hole is opened inside the rotating seat on one side, and a fastener is fixedly connected to one side of the flip plate. The fastener consists of a threaded rod and a nut, and the fastener is slidably connected to the annular hole.

[0012] By adopting the above technical solution, the stability of the flip plate before and after flipping is improved.

[0013] Furthermore, rotating seats four are fixedly connected to both sides of the top of the frame two, and the sides of the rotating seats four on both sides that are close to each other are rotatably connected to rotating rods, and the rotating rods on both sides are rotatably connected to the tensioning rollers, and cylinder two are rotatably connected to both sides of the frame two, and the output end of the cylinder two is rotatably connected to the rotating rod.

[0014] By adopting the above technical solution, the height of the tensioning roller can be adjusted, thereby adjusting the tension of the cardboard.

[0015] Furthermore, the collection mechanism includes a movable hole opened on one side of the frame, a collection box is slidably arranged inside the movable hole, the top of the collection box is set to an open shape, a handle is fixedly connected to one end of the collection box, and a locking part is set on one side of the frame.

[0016] By adopting the above technical solution, waste cardboard can be collected through the collection box, reducing the risk of waste cardboard piling up below the interior of the frame.

[0017] Furthermore, the locking part includes two locking boxes symmetrically fixedly connected to one side of the frame, and the two sides of the collection box are fixedly connected with locking rods, and the locking rods and the locking box are slidingly arranged, and the top of the locking rod is fixedly connected with a locking block 1, and the inner top wall of the locking box is fixedly connected with an elastic part, and the elastic part is composed of a telescopic rod and a spring, and the bottom end of the elastic part is fixedly connected with a locking block 2, and the locking block 2 is in conflict with the locking block 1, and the contact surface between the locking block 1 and the locking block 2 is set as an inclined surface, and the locking block 1 and the locking block 2 are slidingly arranged.

[0018] By adopting the above technical solution, the locking block 1 is limited by the locking block 2, thereby limiting the collection box and improving the stability of the collection box during operation.

[0019] Furthermore, both sides of the top of the second engaging block are fixedly connected with moving rods, the top ends of the moving rods pass through the engaging box and are fixedly connected with handles, and the moving rods are slidably connected to the engaging box.

[0020] By adopting the above technical solution, the limit on the collection box can be released by pulling the handle, thereby facilitating cleaning of the collection box.

[0021] Furthermore, a sliding groove is provided on the inner wall of the engaging box, a sliding block is fixedly connected to one side of the engaging block 2, and the sliding block is slidably connected to the sliding groove.

[0022] By adopting the above technical solution, the slider and the slide groove provide a guiding function for the engaging block 2, so that the engaging block 2 moves more smoothly.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. In this application, when the cutting wheel on the knife seat needs to be replaced, the first step is to start the cylinder 1 to make the flip plate flip upward inside the rotating seat 1, creating a space between the frame 1 and the frame 2. The staff drills into the inside of the flip plate to facilitate the replacement of the cutting wheel on the knife seat. The staff does not need to climb to the top of the frame 1, which reduces the safety risks when working at height and achieves the purpose of reducing maintenance time and labor costs.

[0025] 2. In the present application, for collecting waste cardboard, the collection box is first pushed into the movable hole so that the collection box is located at the bottom of the knife seat and the rotating roller. When the waste cardboard falls downward into the through hole, the top of the collection box is set to an open shape, so that the waste cardboard enters the collection box under the action of gravity and is collected, thereby reducing the occurrence of waste cardboard scattered under the interior of the frame, thereby keeping the working area tidy and clean, and reducing the clutter caused by waste cardboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the first three-dimensional structure of the frame in this application;

[0027] Figure 2 This is a schematic diagram of a cross-sectional structure of a frame in this application;

[0028] Figure 3 This application Figure 1 A in the middle is an enlarged structural diagram;

[0029] Figure 4 This is a schematic diagram of the second three-dimensional structure of the frame 1 in this application;

[0030] Figure 5 This application Figure 4 Enlarged structural diagram at point B in the middle.

[0031] Description of reference numerals:

[0032] 1. Frame 1; 2. Through hole; 3. Rotating roller; 4. Knife holder; 5. Pressing roller 1; 6. Connecting rod; 7. Frame 2; 8. Tensioning roller; 9. Rotating seat 1; 10. Flip plate; 11. Horizontal plate; 12. Rotating seat 2; 13. Cylinder 1; 14. Rotating seat 3; 15. Annular hole; 16. Fastener; 17. Rotating seat 4; 18. Rotating rod; 19. Cylinder 2; 20. Moving hole; 21. Collection box; 22. Handle; 23. Clamping box; 24. Clamping rod; 25. Clamping block 1; 26. Elastic member; 27. Clamping block 2; 28. Moving rod; 29. ​​Slide; 30. Pressing block. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] An embodiment of the present application discloses a cardboard cutting machine having a mechanism for facilitating knife change.

[0035] Reference Figure 1 and Figure 2The cam 2 of the present invention is provided with a plurality of rollers 31 on each side of the cam 2 and a plurality of rollers 32 on each side of the cam 2.

[0036] First, the cardboard is transferred to the top of the frame 2 7 by the conveyor belt. Next, the cardboard is sent into the interior of the frame 2 7. At this time, the tension of the cardboard can be increased by the tensioning roller 8 to maintain the flatness of the cardboard. Then, the cardboard will be sent into the frame 1 and squeezed by the pinching roller 1 5 and the pinching roller 2 to ensure that the cardboard remains flat during the cutting process. Finally, the cardboard will be conveyed between the rotating roller 3 and the knife holder 4. The knife holder 4 rotates to continuously cut the cardboard. The flip plate 10 is rotated by the flip mechanism to create space between the frame 1 and the frame 2 7, which is convenient for the operator to replace the blade. The discarded cardboard can be effectively collected by the collection mechanism, thereby reducing the risk of accumulation inside the frame 1.

[0037] Reference Figure 1 、 Figure 2 and Figure 3 The flipping mechanism includes a horizontal plate 11 fixedly connected between the connecting rods 6 on both sides, and a rotating seat 2 12 is fixedly connected to both sides of the top of the horizontal plate 11. The interior of the rotating seat 2 12 is rotatably connected to a cylinder 13, and the output end of the cylinder 13 is rotatably connected to a rotating seat 3 14. The top of the rotating seat 3 14 is fixedly connected to the bottom of the flipping plate 10.

[0038] Among them, an annular hole 15 is opened inside the rotating seat 9 on one side, and a fastener 16 is fixedly connected to one side of the flip plate 10. The fastener 16 consists of a threaded rod and a nut, and the fastener 16 is slidably connected to the annular hole 15.

[0039] In addition, rotating seats 4 17 are fixedly connected to both sides of the top of the frame 2 7, and the sides of the rotating seats 4 17 on both sides that are close to each other are rotatably connected to rotating rods 18, and the rotating rods 18 on both sides are rotatably connected to the tensioning roller 8, and cylinders 2 19 are rotatably connected to both sides of the frame 2 7, and the output end of the cylinder 2 19 is rotatably connected to the rotating rod 18.

[0040] When the cutting wheel on the knife seat 4 needs to be replaced, the rotating seat 3 14 is first driven to move upward by starting the cylinder 13, and the rotating seat 3 14 is fixedly connected to the flip plate 10, so that the flip plate 10 is flipped upward inside the rotating seat 9. When it is rotated to the appropriate angle, the staff drills into the inside of the flip plate 10, which makes it convenient to replace the cutting wheel on the knife seat 4. The staff does not need to climb to the top of the frame 1, which reduces the safety risk when working at height and achieves the purpose of reducing maintenance time and labor costs. When the flip plate 10 rotates inside the rotating seat 9, the flip plate 10 will drive the fastener 16 to slide inside the annular groove, and then fix the threaded rod with the nut, thereby fixing the position of the flip plate 10, improving the stability of the flip plate 10 after flipping, and when the tensioning roller 8 increases the tension of the cardboard, the rotating rod 18 is driven to rotate inside the rotating seat 4 17 by starting the cylinder 2 19, so that the height of the tensioning roller 8 is adjusted, which facilitates the adjustment of the tension of the tensioning roller 8.

[0041] Reference Figure 4 and Figure 5 The collection mechanism includes a movable hole 20 opened on one side of the frame 1, and a collection box 21 is slidably set inside the movable hole 20. The top of the collection box 21 is set to an open shape, and a handle 22 is fixedly connected to one end of the collection box 21. A locking part is set on one side of the frame 1.

[0042] Among them, the locking parts include two locking boxes 23 that are symmetrically fixedly connected to one side of the frame 1, and the two sides of the collection box 21 are fixedly connected with locking rods 24. The locking rods 24 and the locking box 23 are slidingly arranged. The top of the locking rod 24 is fixedly connected with a locking block 1 25, and the inner top wall of the locking box 23 is fixedly connected with an elastic part 26. The elastic part 26 is composed of a telescopic rod and a spring. The bottom end of the elastic part 26 is fixedly connected with a locking block 2 27. The locking block 2 27 is in conflict with the locking block 1 25. The contact surface between the locking block 1 25 and the locking block 2 27 is set as an inclined surface, and the locking block 1 25 and the locking block 2 27 are slidingly arranged.

[0043] In addition, moving rods 28 are fixedly connected to both sides of the top of the second engaging block 27 . The top of the moving rod 28 passes through the engaging box 23 and is fixedly connected to the handle 22 . The moving rod 28 is slidably connected to the engaging box 23 .

[0044] In addition, a sliding groove 29 is formed on the inner wall of the engaging box 23 , and a sliding block is fixedly connected to one surface of the engaging block 27 , and the sliding block is slidably connected to the sliding groove 29 .

[0045] To collect waste cardboard, first push the collection box 21 into the moving hole 20 so that the collection box 21 is located at the bottom of the knife seat 4 and the rotating roller 3. When the waste cardboard falls downward into the through hole 2, the top of the collection box 21 is set to an open shape, so that the waste cardboard enters the collection box 21 under the action of gravity and is collected, reducing the situation that waste cardboard is scattered below the inside of the frame 1, thereby keeping the working area tidy and clean, and reducing the mess caused by waste cardboard. When the locking box 23 is pushed into the inside of the frame 1, the locking rod 24 will enter the inside of the locking box 23. The movement of the locking rod 24 will drive the locking block to move inside the locking box 23. The movement of the locking block 1 25 will contact the locking block 2 27. The contact surface between the locking block 1 25 and the locking block 2 27 is set to an inclined shape, so that the locking block 2 27 moves upward. The upward movement of the locking block 2 27 will squeeze the elastic member 26, causing the spring to contract and produce When the collecting box 21 is removed from the collecting box 21, the locking block 25 is locked to the locking block 25 by the spring, so that the locking block 27 is locked to the locking block 25. The position of the collecting box 21 is limited, thereby improving the stability of the collecting box 21 when collecting waste cardboard. When the collecting box 21 needs to be taken out for cleaning, the handle 22 is first pulled to drive the moving rod 28 to move upward, and the moving rod 28 is fixedly connected to the locking block 27, so that the locking block 27 moves upward. After the locking block 27 moves upward, the restriction on the locking block 1 25 is released. At this time, the collecting box 21 is also released, so that the collecting box 21 is taken out for cleaning. When the locking block moves, the slider is slidably connected to the slide groove 29. The slider and the slide groove 29 provide a guiding effect for the locking block 27, so that the locking block 27 maintains the correct movement trajectory when moving.

[0046] Working principle: First, the cardboard is transported to the top of the frame 2 7 through the conveyor belt. Next, the cardboard is fed into the interior of the frame 2 7. At this time, the cardboard is squeezed by the pressure roller 1 5 and the pressure roller 2 to ensure that the cardboard remains flat during the cutting process. Finally, the cardboard is transported between the rotating roller 3 and the knife seat 4. The knife seat 4 rotates to continuously cut the cardboard. The rotating seat 3 14 is driven to move upward by starting the cylinder 13. The rotating seat 3 14 is fixedly connected to the flip plate 10, so that the flip plate 10 flips upward inside the rotating seat 1 9. When it rotates to a suitable angle, the staff drills into the inside of the flip plate 10 to facilitate the replacement of the cutting wheel on the knife seat 4. The threaded rod is fixed by a nut to fix the position of the flip plate 10, thereby improving the stability of the flip plate 10 after flipping.

[0047] The collecting box 21 is pushed into the movable hole 20 so that the collecting box 21 is located at the bottom of the knife seat 4 and the rotating roller 3. When the waste cardboard falls downward into the through hole 2, the top of the collecting box 21 is set to an open shape, so that the waste cardboard enters the collecting box 21 under the action of gravity and is collected. The upward movement of the engaging block 27 squeezes the elastic member 26, causing the spring to contract and generate elastic potential energy. When the engaging block 1 25 moves away from the engaging block 27, the elastic potential energy of the spring causes the engaging block 27 to move downward, causing the engaging block 27 to engage with the engaging block 1 25, thereby limiting the position of the engaging block 1 25, so that the position of the collecting box 21 is limited, thereby improving the stability of the collecting box 21 when collecting waste cardboard.

Claims

1. A cardboard cutting machine with a convenient tool-changing mechanism, comprising a frame (1), characterized in that: A through hole (2) is provided inside the frame (1), a rotating roller (3) is provided inside the through hole (2), both ends of the rotating roller (3) are rotatably connected to both sides of the through hole (2), a knife seat (4) is rotatably connected to the inner wall of both sides of the frame (1) above the rotating roller (3), a plurality of cutting wheels are equidistantly provided on the outer surface of the knife seat (4), a pressing roller (5) is rotatably connected to the inner wall of both sides of the frame (1), and two connecting rods (6) are fixedly connected to both sides of the frame (1), and the connecting rods (6) are fixedly connected to the inner wall of both sides of the frame (1). ) is fixedly connected to frame 2 (7) at one end away from frame 1 (1), a tensioning roller (8) is provided above the frame 2 (7), one end of the frame 2 (7) is fixedly connected to rotating seat 1 (9), the internal rotation of the rotating seat 1 (9) is connected to a flip plate (10), the top of the flip plate (10) is fixedly connected to a pressing block (30), the internal rotation of the pressing block (30) is connected to a pressing roller 2, a flip mechanism is provided between the connecting rods (6) on both sides, and a collecting mechanism is provided on one side of the frame 1 (1).

2. A cardboard cutting machine with a convenient tool-changing mechanism according to claim 1, characterized in that: The flip mechanism includes a horizontal plate (11) fixedly connected between the connecting rods (6) on both sides, the top of the horizontal plate (11) is fixedly connected to the second rotating seat (12) on both sides, the interior of the second rotating seat (12) is rotatably connected to the first cylinder (13), the output end of the first cylinder (13) is rotatably connected to the third rotating seat (14), and the top of the third rotating seat (14) is fixedly connected to the bottom of the flip plate (10).

3. The cardboard cutting machine with a convenient tool-changing mechanism according to claim 1, characterized in that: An annular hole (15) is provided inside the rotating seat (9) on one side, and a fastener (16) is fixedly connected to one side of the flip plate (10). The fastener (16) is composed of a threaded rod and a nut, and the fastener (16) is slidably connected to the annular hole (15).

4. The cardboard cutting machine with a convenient tool-changing mechanism according to claim 1, characterized in that: The top two sides of the frame two (7) are fixedly connected with rotating seats four (17), and the sides of the rotating seats four (17) on both sides that are close to each other are rotatably connected with rotating rods (18), and the rotating rods (18) on both sides are rotatably connected with the tensioning roller (8), and the two sides of the frame two (7) are rotatably connected with cylinder two (19), and the output end of the cylinder two (19) is rotatably connected with the rotating rod (18).

5. The cardboard cutting machine with a convenient tool-changing mechanism according to claim 1, characterized in that: The collecting mechanism comprises a movable hole (20) opened on one side of the frame (1), a collecting box (21) is slidably provided inside the movable hole (20), the top of the collecting box (21) is set in an open shape, one end of the collecting box (21) is fixedly connected to a handle (22), and a locking member is provided on one side of the frame (1).

6. The cardboard cutting machine with a convenient tool-changing mechanism according to claim 5, characterized in that: The engaging member comprises two engaging boxes (23) symmetrically fixedly connected to one side of the frame (1), the two sides of the collection box (21) are fixedly connected with engaging rods (24), the engaging rods (24) and the engaging box (23) are slidingly arranged, the top of the engaging rods (24) is fixedly connected with an engaging block (25), the inner top wall of the engaging box (23) is fixedly connected with an elastic member (26), the elastic member (26) is composed of a telescopic rod and a spring, the bottom end of the elastic member (26) is fixedly connected with an engaging block (27), the engaging block (27) is in conflict with the engaging block (25), the contact surface between the engaging block (25) and the engaging block (27) is set as an inclined surface, and the engaging block (25) and the engaging block (27) are slidingly arranged.

7. A cardboard cutting machine with a convenient tool-changing mechanism according to claim 6, characterized in that: The top two sides of the second engaging block (27) are fixedly connected with moving rods (28), the top end of the moving rod (28) passes through the engaging box (23) and is fixedly connected with a handle (22), and the moving rod (28) is slidably connected to the engaging box (23).

8. The cardboard cutting machine with a convenient knife-changing mechanism according to claim 6, characterized in that: The inner wall of the engaging box (23) is provided with a sliding groove (29), and one side of the engaging block 2 (27) is fixedly connected with a sliding block, and the sliding block is slidably connected to the sliding groove (29).

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