Paperboard cutting mechanism

Abstract

The utility model relates to a cutting device, and particularly discloses a paperboard cutting mechanism which comprises a table top, a fretsaw arranged on the table top, a first clamping plate arranged on the table top, a second clamping plate parallel to the first clamping plate, a connecting plate fixedly connected with one end of the first clamping plate and a pair of pressing devices. The driving device is used for driving the connecting plate to move on the table top; one end of the second clamping plate is slidably connected with the connecting plate. The pressing devices are arranged on the upper sides of the first clamping plate and the second clamping plate correspondingly. The pressing device comprises a rotating motor arranged on the upper side of the first clamping plate, a connecting rod arranged on an output shaft of the rotating motor and a pressing block arranged at the end of the connecting rod. The axial direction of the connecting rod is perpendicular to the axial direction of the output shaft of the rotating motor, and the axial direction of the output shaft of the rotating motor is parallel to the length direction of the first clamping plate. According to the paperboard cutting mechanism, the paperboard can be stably clamped and fixed, and irregular displacement of the paperboard in the cutting process is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of cutting devices, and more specifically, to a cardboard cutting mechanism. Background Technology

[0002] Cardboard is a very common packaging material. Before using cardboard for packaging, a large piece of cardboard usually needs to be cut into a specific shape, and then the cut cardboard is bent and glued into a container of the corresponding shape.

[0003] There are many ways to cut cardboard. The most common method is cutting with a knife. However, for batch cutting of irregular shapes, a wire saw is usually the best choice. This involves stacking multiple pieces of cardboard, placing them in the machine, and then cutting them with a wire saw. During the cutting process, the cardboard is moved along a predetermined route, allowing for batch cutting of irregular shapes.

[0004] However, during the cutting process, the saw wire in the wire saw cuts gaps between the cardboard pieces. For large areas of cardboard that are clamped on the sides, these gaps can cause irregular displacement of the cardboard during movement, resulting in a slight difference between the final shape and the intended shape. This reduces product precision and lowers the yield rate. Therefore, it is necessary to design a device that can clamp the cardboard more stably. Utility Model Content

[0005] The purpose of this invention is to provide a cardboard cutting mechanism that can stably clamp and fix the cardboard, preventing irregular displacement of the cardboard during the cutting process.

[0006] This utility model is achieved through the following technical solution: The cardboard cutting mechanism of this utility model includes a table, a wire saw mounted on the table, a first clamping plate mounted on the table, a second clamping plate parallel to the first clamping plate, a connecting plate fixedly connected to one end of the first clamping plate, a pair of pressing devices, and a driving device for driving the connecting plate to move on the table; one end of the second clamping plate is slidably connected to the connecting plate, and the pair of pressing devices are respectively mounted on the upper side of the first clamping plate and the second clamping plate; the pressing device includes a rotary motor mounted on the upper side of the first clamping plate, a connecting rod mounted on the output shaft of the rotary motor, and a pressing block mounted on the end of the connecting rod; the axial direction of the connecting rod is perpendicular to the axial direction of the output shaft of the rotary motor, and the axial direction of the output shaft of the rotary motor is parallel to the length direction of the first clamping plate.

[0007] Furthermore, both the first clamping plate and the second clamping plate are provided with elongated grooves on their upper sides, and the rotary motor is provided with a slider on its lower side, which is slidably disposed in the groove; the length direction of the groove is parallel to the length direction of the first clamping plate.

[0008] Furthermore, the connecting rod is a telescopic structure.

[0009] Furthermore, the side wall of the connecting rod is provided with an electric push rod, the cylinder of the electric push rod is connected to the end of the connecting rod near the rotary motor, and the movable end of the electric push rod is connected to the end of the connecting rod near the pressing block.

[0010] Furthermore, the driving device includes a first driving unit for driving the connecting plate to move along its length direction, and a second driving unit for driving the connecting plate to move along the length direction of the first clamping plate.

[0011] Furthermore, the first driving unit includes a driving plate disposed on the side of the connecting plate away from the first clamping plate, a first driving motor disposed at one end of the driving plate, a first lead screw disposed on the output shaft of the first driving motor, a first nut threadedly connected to the first lead screw, and a first fixing block disposed on the end of the driving plate away from the first driving motor; the first lead screw is rotatably connected to the first fixing block, and the first nut is fixedly connected to the side wall of the connecting plate; the axial direction of the first lead screw is parallel to the length direction of the connecting plate.

[0012] Furthermore, the second drive unit includes a connecting block fixedly connected to the side of the drive plate away from the connecting plate, an elongated through hole on the table surface, a second nut located on the lower side of the connecting block, a second drive motor located on the lower side of the table surface, a second lead screw located on the output shaft of the second drive motor, and a second fixing block located on the lower side of the table surface; the connecting block is slidably disposed in the through hole, the second lead screw is threadedly connected to the second nut, and the second lead screw is rotatably connected to the second fixing block; the length direction of the through hole is parallel to the length direction of the first clamping plate, and the length direction of the second lead screw is parallel to the length direction of the first clamping plate.

[0013] Furthermore, the connecting plate has an elongated slot on the side near the first clamping plate, and the second clamping plate has a locking block on the side near the connecting plate; the locking block is slidably disposed in the slot.

[0014] Furthermore, the second clamping plate has a fixing plate at one end near the connecting plate, and the fixing plate is threaded with a vertically arranged fastening bolt; the fixing plate is located above the connecting plate, and the fastening bolt abuts against the upper side of the connecting plate.

[0015] Furthermore, the wire saw includes a machine body and a saw wire connected to the machine body; the table surface has saw holes through which the saw wire passes.

[0016] The technical solution of this utility model has at least the following advantages and beneficial effects: In use, the cardboard cutting mechanism of this utility model stacks cardboard together to form a multi-layer structure, then places it into the first and second clamping plates. The cardboard is clamped by the first and second clamping plates and the connecting plate. A pressing device then presses a pressing block onto the surface of the cardboard to prevent it from loosening or shifting during cutting. A driving device then drives the connecting plate and the cardboard to move along a set path on the table. During this movement, a wire saw cuts the cardboard into specific shapes. During the cutting process, when the connecting rod in the pressing device conflicts with the wire saw, the connecting rod and the pressing block can be lifted by rotating the motor, allowing the wire saw to pass before pressing the pressing block onto the cardboard. Since both the first and second clamping plates are equipped with pressing devices, and a pair of pressing devices are located on opposite sides, there is no situation where both connecting rods need to conflict with the wire saw. In other words, at any given time, there will always be a pressing block pressing on the cardboard. This ensures the pressing effect on the cardboard, improves the stability of the cardboard during the cutting process, guarantees cutting accuracy, and improves product quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the cardboard cutting mechanism provided in this embodiment of the present invention during use;

[0018] Figure 2 A structural schematic diagram of the tabletop portion provided in an embodiment of this utility model;

[0019] Figure 3 A two-view structural schematic diagram of the tabletop portion provided in an embodiment of this utility model;

[0020] Figure 4 A three-view structural schematic diagram of the tabletop portion provided in an embodiment of this utility model;

[0021] Figure 5 A schematic diagram of the drive device portion provided in an embodiment of this utility model from one perspective;

[0022] Figure 6 A two-view structural schematic diagram of the driving device portion provided in an embodiment of this utility model;

[0023] Figure 7 A three-view structural schematic diagram of the driving device portion provided in an embodiment of this utility model;

[0024] Figure 8 This is a schematic diagram of the pressing device provided in an embodiment of the present utility model;

[0025] Figure 9 for Figure 5 Enlarged view of section A.

[0026] Icons: 10-Tabletop, 11-Saw hole, 12-First clamping plate, 13-Second clamping plate, 14-Connecting plate, 15-Slide groove, 16-Slot, 17-Fixing plate, 18-Fasting bolt, 19-Through hole, 20-Pressing device, 21-Rotary motor, 22-Connecting rod, 23-Pressing block, 24-Electric push rod, 25-Slider, 30-First driving device, 31-Drive plate, 32-First driving motor, 33-First lead screw, 34-First fixing block, 35-First nut, 40-Second driving device, 41-Connecting block, 42-Second nut, 43-Second driving motor, 44-Second lead screw, 45-Second fixing block, 50-Cardboard, 60-Wire saw, 61-Machine body, 62-Saw wire. Detailed Implementation

[0027] Example

[0028] The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 -Appendix Figure 9The cardboard cutting mechanism of this embodiment includes a table 10, a wire saw 60 mounted on the table 10, a first clamping plate 12 mounted on the table 10, a second clamping plate 13 parallel to the first clamping plate 12, a connecting plate 14 fixedly connected to one end of the first clamping plate 12, a pair of pressing devices 20, and a driving device for driving the connecting plate 14 to move on the table 10; one end of the second clamping plate 13 is slidably connected to the connecting plate 14, and the pair of pressing devices 20 are respectively mounted on the upper side of the first clamping plate 12 and the second clamping plate 13; the pressing device 20 includes a rotary motor 21 mounted on the upper side of the first clamping plate 12, a connecting rod 22 mounted on the output shaft of the rotary motor 21, and a pressing block 23 mounted on the end of the connecting rod 22; the axial direction of the connecting rod 22 is perpendicular to the axial direction of the output shaft of the rotary motor 21, and the axial direction of the output shaft of the rotary motor 21 is parallel to the length direction of the first clamping plate 12. Specifically, during use, cardboard 50 is stacked together to form a multi-layer structure, and then placed into the first clamping plate 12 and the second clamping plate 13. The cardboard 50 is clamped by the first clamping plate 12, the second clamping plate 13, and the connecting plate 14. Then, the pressing device 20 presses the pressing block 23 onto the surface of the cardboard 50 to press it down and prevent it from loosening or shifting during the cutting process. Then, the driving device drives the connecting plate 14 and the cardboard 50 to move on the table 10 along a set route. During the movement, the wire saw 60 cuts the cardboard 50 into a specific shape. During the cutting process of the wire saw 60, when the wire saw 60 collides with the connecting rod 22 in the pressing device 20, the rotating motor 21 can lift the connecting rod 22 and the pressing block 23. (The movement path of the cardboard 50 needs to be set in advance, and then the time point when the path will conflict is determined. The rotary motor 21 can be run at that time point. Alternatively, the cutting situation can be observed manually, and then the rotary motor 21 can be operated manually.) After the wire saw 60 passes, the pressing block 23 is pressed onto the cardboard 50. Since the first clamping plate 12 and the second clamping plate 13 are both equipped with pressing devices 20 and a pair of pressing devices 20 are set on opposite sides, there will be no situation where both connecting rods 22 need to conflict with the wire saw 60. That is to say, at the same time, there will always be a pressing block 23 pressing on the cardboard 50. This can fully guarantee the pressing effect on the cardboard 50, improve the stability of the cardboard 50 during the cutting process, ensure cutting accuracy, and improve product quality.

[0029] In this embodiment, both the first clamping plate 12 and the second clamping plate 13 are provided with elongated grooves 15 on their upper sides, and the rotary motor 21 is provided with a slider 25 on its lower side, which slides in the groove 15; the length direction of the groove 15 is parallel to the length direction of the first clamping plate 12. Specifically, this allows the position of the pressing device 20 to be reasonably adjusted according to the specific shape to be cut.

[0030] In this embodiment, the connecting rod 22 is a telescopic structure. An electric push rod 24 is provided on the side wall of the connecting rod 22. The cylinder of the electric push rod 24 is connected to the end of the connecting rod 22 near the rotary motor 21, and the movable end of the electric push rod 24 is connected to the end of the connecting rod 22 near the pressing block 23. Specifically, by making the connecting rod 22 telescopic and adjusting its length via the electric push rod 24, the pressing position can be better adjusted according to the shape of the cardboard 50. Alternatively, the electric push rod 24 can be omitted, and the length of the connecting rod 22 can be adjusted manually.

[0031] The driving device in this embodiment includes a first driving unit for driving the connecting plate 14 to move along its length direction, and a second driving unit for driving the connecting plate 14 to move along the length direction of the first clamping plate 12.

[0032] In this embodiment, the first driving unit includes a driving plate 31 located on the side of the connecting plate 14 away from the first clamping plate 12, a first driving motor 32 located at one end of the driving plate 31, a first lead screw 33 located on the output shaft of the first driving motor 32, a first nut 35 threadedly connected to the first lead screw 33, and a first fixing block 34 located at the end of the driving plate 31 away from the first driving motor 32. The first lead screw 33 is rotatably connected to the first fixing block 34, and the first nut 35 is fixedly connected to the side wall of the connecting plate 14. The axial direction of the first lead screw 33 is parallel to the length direction of the connecting plate 14. Specifically, the first driving motor 32 drives the first lead screw 33 to rotate, thereby driving the first nut 35 to move the connecting plate 14, the first clamping plate 12, and the second clamping plate 13, ultimately moving the cardboard 50 along the axial direction of the first lead screw 33.

[0033] The second drive unit in this embodiment includes a connecting block 41 fixedly connected to the side of the drive plate 31 away from the connecting plate 14, an elongated through hole 19 opened on the platform 10, a second nut 42 located on the lower side of the connecting block 41, a second drive motor 43 located on the lower side of the platform 10, a second lead screw 44 located on the output shaft of the second drive motor 43, and a second fixing block 45 located on the lower side of the platform 10; the connecting block 41 is slidably disposed in the through hole 19, the second lead screw 44 is threadedly connected to the second nut 42, and the second lead screw 44 is rotatably connected to the second fixing block 45; the length direction of the through hole 19 is parallel to the length direction of the first clamping plate 12, and the length direction of the second lead screw 44 is parallel to the length direction of the first clamping plate 12. Specifically, the structure of the second drive unit is similar to that of the first drive unit. The second drive motor 43 drives the second lead screw 44 to rotate, thereby driving the second nut 42, the second fixing block 45, and the drive plate 31 to move. This causes the connecting plate 14, the first clamping plate 12, the second clamping plate 13, and the cardboard 50 to move along the axial direction of the second lead screw 44. In this way, the first drive unit and the second drive unit can drive the cardboard 50 to move along a pre-set route on the table 10.

[0034] In this embodiment, the connecting plate 14 has an elongated slot 16 on the side near the first clamping plate 12, and the second clamping plate 13 has a locking block on the side near the connecting plate 14; the locking block is slidably disposed in the slot 16. Specifically, this allows the position of the second clamping plate 13 to be restricted by the slot 16 and the locking block.

[0035] In this embodiment, the second clamping plate 13 is provided with a fixing piece 17 at one end near the connecting plate 14. The fixing piece 17 is threadedly connected to a vertically arranged fastening bolt 18. The fixing piece 17 is located above the connecting plate 14, and the fastening bolt 18 abuts against the upper side of the connecting plate 14. Specifically, after the cardboard 50 is clamped by the first clamping plate 12 and the second clamping plate 13, tightening the fastening bolt 18 can fix the position of the second clamping plate 13.

[0036] The wire saw 60 in this embodiment includes a body 61 and a saw wire 62 connected to the body 61; a saw hole 11 is provided on the table 10 for the saw wire 62 to pass through. Specifically, the wire saw 60 can be a commonly available model on the market.

[0037] In summary, the cardboard cutting mechanism of this embodiment stacks cardboard 50 together to form a multi-layer structure, then places it into the first clamping plate 12 and the second clamping plate 13. The cardboard 50 is clamped by the first clamping plate 12, the second clamping plate 13, and the connecting plate 14. Then, the pressing device 20 presses the pressing block 23 onto the surface of the cardboard 50 to press it down and prevent it from loosening or shifting during the cutting process. Then, the driving device drives the connecting plate 14 and the cardboard 50 to move on the table 10 along a set route. During the movement, the wire saw 60 cuts the cardboard 50 into a specific shape. During the cutting process of the wire saw 60, when the wire saw 60... When there is a conflict with the connecting rod 22 in the pressing device 20, the connecting rod 22 and the pressing block 23 can be lifted by rotating the motor 21, so that the wire saw 60 can pass through and then press the pressing block 23 onto the cardboard 50. Since the first clamping plate 12 and the second clamping plate 13 are both equipped with pressing devices 20 and a pair of pressing devices 20 are set on opposite sides, there will be no situation where both connecting rods 22 need to conflict with the wire saw 60. That is to say, at the same time, there will always be a pressing block 23 pressing on the cardboard 50. This can fully guarantee the pressing effect on the cardboard 50, improve the stability of the cardboard 50 during the cutting process, ensure cutting accuracy, and improve product quality.

[0038] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A paperboard cutting mechanism, characterized by: The utility model relates to a table (10), be located on the table (10) on the wire saw machine (60), be located on the first clamping plate (12) of table (10), the second clamping plate (13) parallel to the first clamping plate (12), with one end fixed connection of first clamping plate (12) connecting plate (14), a pair of pressing device (20) and be used to drive connecting plate (14) on the table (10) moves the drive arrangement, One end of the second clamping plate (13) is slidably connected to the connecting plate (14), and a pair of pressing devices (20) are respectively arranged on the upper sides of the first clamping plate (12) and the second clamping plate (13); The pressing device (20) comprises a rotary motor (21) arranged on the upper side of the first clamping plate (12), a connecting rod (22) arranged on the output shaft of the rotary motor (21), and a pressing block (23) arranged at the end of the connecting rod (22); the axial direction of the connecting rod (22) is perpendicular to the axial direction of the output shaft of the rotary motor (21), and the axial direction of the output shaft of the rotary motor (21) is parallel to the length direction of the first clamping plate (12).

2. The paperboard cutting mechanism of claim 1, wherein: The upper sides of the first clamping plate (12) and the second clamping plate (13) are each provided with an elongated sliding groove (15), the lower side of the rotary motor (21) is provided with a sliding block (25), and the sliding block (25) is slidably arranged in the sliding groove (15); the length direction of the sliding groove (15) is parallel to the length direction of the first clamping plate (12).

3. The paperboard cutting mechanism of claim 1, wherein: The connecting rod (22) has a telescopic structure.

4. The paperboard cutting mechanism of claim 3, wherein: The side wall of the connecting rod (22) is provided with an electric push rod (24), the cylinder of the electric push rod (24) is connected to one end of the connecting rod (22) close to the rotary motor (21), and the movable end of the electric push rod (24) is connected to one end of the connecting rod (22) close to the pressing block (23).

5. The paperboard cutting mechanism of claim 1, wherein: The drive device comprises a first drive unit for driving the connecting plate (14) to move along the length direction thereof, and a second drive unit for driving the connecting plate (14) to move along the length direction of the first clamping plate (12).

6. The paperboard cutting mechanism of claim 5, wherein: The first drive unit comprises a drive plate (31) arranged on the side of the connecting plate (14) away from the first clamping plate (12), a first drive motor (32) arranged at one end of the drive plate (31), a first screw rod (33) arranged on the output shaft of the first drive motor (32), a first nut (35) threadedly connected with the first screw rod (33), and a first fixed block (34) arranged on the end of the drive plate (31) away from the first drive motor (32); The first screw rod (33) is rotationally connected with the first fixed block (34), and the first nut (35) is fixedly connected with the side wall of the connecting plate (14); the axial direction of the first screw rod (33) is parallel to the length direction of the connecting plate (14).

7. The paperboard cutting mechanism of claim 6, wherein: The second driving unit comprises a connecting block (41) fixedly connected with the driving plate (31) on the side away from the connecting plate (14), a long strip-shaped through hole (19) opened on the table top (10), a second nut (42) arranged on the lower side of the connecting block (41), a second driving motor (43) arranged on the lower side of the table top (10), a second screw rod (44) arranged on the output shaft of the second driving motor (43), and a second fixed block (45) arranged on the lower side of the table top (10). The connecting block (41) is slidingly arranged in the through hole (19), the second screw rod (44) is threadedly connected with the second nut (42), and the second screw rod (44) is rotationally connected with the second fixed block (45); the length direction of the through hole (19) is parallel to the length direction of the first clamping plate (12), and the length direction of the second screw rod (44) is parallel to the length direction of the first clamping plate (12).

8. The paperboard cutting mechanism of claim 1, wherein: The connecting plate (14) is provided with a long strip-shaped clamping groove (16) on the side close to the first clamping plate (12), and the second clamping plate (13) is provided with a clamping block on the side close to the connecting plate (14); the clamping block is slidingly arranged in the clamping groove (16).

9. The paperboard cutting mechanism of claim 8, wherein: The second clamping plate (13) is provided with a fixed sheet (17) on one end close to the connecting plate (14), and the fixed sheet (17) is threadedly connected with a vertically arranged fastening bolt (18). The fixed sheet (17) is arranged above the connecting plate (14), and the fastening bolt (18) abuts against the upper side of the connecting plate (14).

10. The paperboard cutting mechanism of claim 1, wherein: The wire saw machine (60) comprises a machine body (61) and a saw wire (62) connected with the machine body (61); the table top (10) is provided with a saw hole (11) for the saw wire (62) to pass through.

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