Pipe cutting linkage device and binding machine

Abstract

The utility model provides a pipe cutting linkage device which comprises a cutter embedded in a sliding way on a cutter rest. The shifting assembly is provided with a shifting fork and a rotating shaft connected with the shifting fork, and one end of the cutter is clamped and fixed in a clamping groove of the shifting fork; the shifting fork can swing with the rotating shaft as the axis when the binding pipe is inserted into the cutting groove in the tool rest and drive the cutter to move towards the side close to the binding pipe in the sliding way so as to cut off the binding pipe or move towards the side away from the binding pipe so as to reset to the initial position of the cutter. According to the pipe cutting linkage device, the cutting position of the cutter can be accurately controlled, and the pipe can be cut in place at a time; the binding pipe cutting device is simple in structure and reasonable in layout, binding pipes can be automatically cut without external force interference, pipe cutting quality is guaranteed, and binding efficiency is improved. The utility model further provides a binding machine provided with the pipe cutting linkage device.

Description

Technical Field

[0001] The present application belongs to the technical field of binding equipment, and in particular relates to a tube cutting linkage device and a binding machine provided with the tube cutting linkage device. Background Art

[0002] In the existing binding, when the tube is cut, the cutter is easily displaced or misaligned during cutting, so that the cutter cannot cut in place at one time, and multiple cuts and alignments are required to cut the binding tube. This leads to inaccurate cutting and failure to automatically reset, poor tube cutting quality, and low cutting efficiency. When the cutter is returned again, the cutter is stuck in the tube and cannot be reset. The operator needs to intervene manually to separate the cutter from the binding tube, which is very easy to cut fingers and poses a great safety risk. Summary of the invention

[0003] The present application provides a tube cutting linkage device and a binding machine, which solve the technical problems in the prior art that the cutter is easily displaced during cutting and fails to cut in place at one time, resulting in inaccurate cutting and failure to automatically reset.

[0004] In order to solve at least one of the above technical problems, the technical solution adopted in this application is:

[0005] A pipe cutting linkage device, comprising:

[0006] A cutting knife, which is embedded in a slideway on the knife holder;

[0007] A shifting assembly, which is equipped with a shifting fork and a rotating shaft connected to the shifting fork, and one end of the cutter is fixed in a slot of the shifting fork;

[0008] When the binding tube is inserted into the cutting groove in the knife holder, the shift fork can swing around the rotating shaft as the axis, and drive the cutter to move toward the side close to the binding tube in the slideway to cut the binding tube, or move toward the side away from the binding tube to reset to its initial position.

[0009] Furthermore, the cutter is constructed as a long strip structure, and one end thereof fixed in the slot is constructed as a tail wing of a straight section structure;

[0010] Preferably, the tail wing is arranged on the same side as the blade in the cutter, and the edge surface of the blade is arranged opposite to the tail wing;

[0011] Preferably, a mounting groove for fixing the blade is provided at one end of the cutter away from the tail wing, and the mounting groove is arranged obliquely along the corner of the cutter.

[0012] Further, the slideway in the tool holder is adapted to the long side of the cutter, and the cutting groove is arranged on a side close to the blade, and is provided with a boss surface that matches the blade;

[0013] Preferably, a convex stop for preventing the shift fork from driving the tail wing to slide is further provided on one side of the slideway close to the convex surface.

[0014] Furthermore, the toggle assembly also includes:

[0015] A bearing seat, used for fixing the rotating shaft;

[0016] A mounting plate, used for fixing the bearing seat and the tool holder;

[0017] A limiting shaft, which vertically passes through the mounting plate and is provided with a stop shoulder for limiting the position of the rotating shaft;

[0018] The shift fork, the bearing seat and the tool holder are arranged below the mounting plate, and the limit shaft is suspended above the mounting plate;

[0019] The cutter is arranged between the cutter holder and the mounting plate;

[0020] The mounting plate is also provided with a through hole through which the binding tube and the limiting shaft pass.

[0021] Furthermore, the cross-section of the bearing seat is constructed as a U-shaped structure, and both ends thereof are open structures; the top of the bearing seat is connected to the mounting plate, and its open side is arranged downward; and connecting holes through which the rotating shaft passes are constructed on its two side surfaces.

[0022] Furthermore, the rotating shaft is configured as an L-shaped structure, one end of which passes through the connecting hole and is connected to the shift fork; and the other end of which is suspended upward and fixed to the shoulder.

[0023] Furthermore, the shift fork is arranged between the bearing seat and the tool holder, and the clamping groove is arranged at one end of the shift fork; the rotating hole connected to the rotating shaft is arranged at the center of gravity of the bearing seat;

[0024] The thickness of the end side where the card slot is located is smaller than the thickness of the end side where the rotating hole is located.

[0025] Furthermore, a clearance groove communicating with the rotating hole is provided in the shift fork near one end of the rotating hole, and a clamping hole for fixing the rotating shaft to cooperate with the rotating hole is provided on the clearance groove.

[0026] Furthermore, the cross section of the lower end of the limiting shaft is constructed as an arc-shaped structure, the stop shoulder is arranged on its flat side, and there are two stop shoulders, both of which are arranged toward one side of the rotating shaft;

[0027] Preferably, the limiting shaft and the binding tube are arranged in parallel along the width of the mounting plate.

[0028] A binding machine is provided with the tube cutting linkage device as described above.

[0029] The tube cutting linkage device designed by the present application can accurately control the cutting position of the cutter and can cut in place at one time; it can not only quickly reset without getting stuck, nor shifting or misaligning, but also has a simple structure and reasonable layout, and can automatically cut the binding tube without external interference, thereby ensuring the cutting quality and improving the binding efficiency. The present application also proposes a binding machine provided with the tube cutting linkage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a three-dimensional diagram of the pipe cutting linkage device in the present application;

[0031] Figure 2 is a three-dimensional diagram of the pipe cutting linkage device from another angle in the present application;

[0032] Figure 3 is a three-dimensional diagram of a pipe cutting linkage device without a mounting plate in the present application;

[0033] Figure 4 It is a three-dimensional view of the pipe cutting linkage device without a mounting plate from another angle in the present application;

[0034] Figure 5 is a perspective view of the cutter in the present application;

[0035] Figure 6 is a three-dimensional diagram of the tool holder in the present application;

[0036] Figure 7 is a three-dimensional diagram of the shift fork in the present application;

[0037] Figure 8 is a three-dimensional view of the bearing seat in the present application;

[0038] Fig. 9 It is a stereoscopic diagram of the limiting axis in this application.

[0039] In the figure:

[0040] 10. Mounting plate 20. Cutter 21. Main body

[0041] 22, blade 23, tail 30, knife holder

[0042] 31. Slideway 32. Groove 33. Boss surface

[0043] 34, convex stop 40, shift fork 41, card slot

[0044] 42, rotating hole 43, clearance groove 50, rotating shaft

[0045] 60, bearing seat 70, binding tube 80, limit shaft DETAILED DESCRIPTION

[0046] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] This embodiment provides a pipe cutting linkage device, such as Figure 1-4 As shown, the tool comprises a mounting plate 10, a cutter 20 and a toggle assembly, wherein the cutter 20 is embedded in a slideway 31 on a tool holder 30; the tool holder 30 and the toggle assembly are both arranged below the mounting plate 10. The toggle assembly is provided with a shift fork 40, a rotating shaft 50 connected to the shift fork 40, and a bearing seat 60 for fixing the rotating shaft 50. The shift fork 40 is arranged between the bearing seat 60 and the tool holder 30, and a tail wing 22 at one end of the cutter 20 is clamped in a clamping groove 41 on the shift fork 40. When the binding tube 70 is inserted into the cutting groove 32 in the tool holder 30, the shift fork 40 can swing with the rotating shaft 50 as the axis, and drive the cutter 20 to move in the slideway 31 toward the side close to the binding tube to cut the binding tube 70, or move toward the side away from the binding tube 70 to quickly reset to its initial position.

[0048] like Figure 5 As shown, the cutter 20 is constructed as a long strip structure, which includes a body 21, which is fixed in the slot 41. One end of the body 21 is constructed as a tail wing 23 of a straight section structure, and the tail wing 23 is arranged in the same plane as the body 21 and protrudes from the outside of the body 21. Both sides of the tail wing 23 are arc surfaces, which are convenient for matching with the slot 41 to avoid jamming.

[0049] Furthermore, the tail 23 is disposed on the same side as the blade 22 in the cutter 20, and the edge surface of the blade 22 is disposed opposite to the tail 23. A mounting groove for fixing the blade 22 is disposed at one end of the cutter 20 away from the tail 23, and the mounting groove is disposed obliquely along the corner of the cutter 20, which not only reduces the installation space of the blade 22, but also ensures that the blade of the cutter 20 is disposed perpendicular to the length direction of the body 21 and is directly parallel to the length of the tail 23; it also ensures that the blade can be completely aligned with the cross section of the binding tube 70, and the binding tube 70 is cut cross-sectionally, ensuring the cutting accuracy and the minimum force.

[0050] like Figure 6 As shown, the knife holder 30 is provided with a slideway 31 adapted to the long side of the body of the cutter 20, and the cutting groove 32 is arranged on the side close to the blade, and a boss surface 33 matching the blade is arranged on the cutting groove 32. Correspondingly, a convex stop 34 is also arranged on the side close to the boss surface 33 in the slideway 31 for blocking the shift fork 40 from driving the tail 23 to slide. The side of the boss surface 33 close to the blade is a flat vertical plane, and the side away from the blade is an inclined table structure, which can prevent the table surface from scratching the hand and can also prevent it from interfering with the lower end surface of the mounting frame 10.

[0051] The boss surface 33 and the boss stop 34 are integrally arranged, and the length of the boss surface 33 is greater than the length of the blade and is arranged perpendicular to the length of the boss stop 34. They are all protruding from the slide 31, that is, their heights are all higher than the plane of the slide 31, which not only increases its strength but also facilitates processing.

[0052] A trapezoidal boss is provided at one end of the slideway 31 near the cutting groove 32, which is separated from the body 21. The boss and the long side of the slideway 31 form a width-limited area, and the cutter 22 is completely confined in the slideway 31, so as to avoid the cutter 20 from moving in the length direction of the slideway 31 during operation, so as to ensure accurate pipe cutting and one-time pipe cutting. It can also avoid jamming.

[0053] like Figure 2-3 As shown, the shifting assembly also includes a bearing seat 60 for fixing the rotating shaft 50 and a limiting shaft 80 for limiting the cutting position of the cutter 20, wherein the mounting plate 10 can fix the bearing seat 60 and the knife holder 30, and the cutter 20 is arranged between the knife holder 30 and the mounting plate 10. The limiting shaft 80 vertically passes through the mounting plate 10, and its lower section is provided with a stop shoulder 81 for limiting the position of the rotating shaft 50; the mounting plate 10 is also provided with a through hole passed by the binding tube 70 and the limiting shaft 80. The shifting fork 40, the bearing seat 60 and the knife holder 30 are all arranged below the mounting plate 10, and the limiting shaft 80 is suspended above the mounting plate 10; the bearing seat 40 and the knife holder 30 are directly and fixedly connected to the mounting plate 10.

[0054] like Figure 8 As shown, the cross section of the bearing seat 60 is constructed as a U-shaped structure, and both ends thereof are open structures, which is not only convenient for processing, but also convenient for installing the rotating shaft 50. The top of the bearing seat 60 is directly connected to the mounting plate 10, and its open side is arranged downward, and connecting holes through which the rotating shaft 50 passes are configured on both sides of the bearing seat 60.

[0055] The rotating shaft 50 is configured as an L-shaped structure, one end of which passes through the connecting hole and is connected to the shift fork 40, and the other end of which is suspended upward and fixed at the stop shoulder 81. The suspension section of the rotating shaft 50 is at a certain distance from the limit shaft 80, so that the suspension section can be tilted between the upper and lower stop shoulders 81, so that the suspension section of the rotating shaft 50 can be pressed by the upper stop shoulder 81 or pulled by the lower stop shoulder 81, so that the rotating shaft 50 drives the shift fork 40 to rotate at a preset angle with the rotating shaft 50 as the axis, so that the shift fork 40 moves the tail wing 23 placed in the slot 41, thereby driving the cutter 20 to move horizontally along the slide 31, so that the blade 22 is away from the slot 41 to open the cutter 22 to place the binding tube 70 below, or the cutter is close to the slot 41 to close the cutter to cut the tube. Preferably, the limiting shaft 80 and the binding tube 70 are arranged in parallel along the width direction of the mounting plate 10, which is not only convenient for observation, but also conducive to the installation and coordination of the linkage device, saves operating space, and is simple and easy to disassemble.

[0056] like Figure 7 As shown, the shift fork 40 is fixedly arranged on the side of the bearing seat 60 through the rotating shaft 50, and is located between the bearing seat 60 and the knife holder 30. The clamping groove 41 used to shift the tail wing 23 in the cutter 20 is arranged at one end of the shift fork 40, and its depth is greater than the thickness of the tail wing 23, and a larger depth is reserved so that the tail wing 23 is completely clamped in the clamping groove 41 to prevent the tail wing 23 from being separated from the clamping groove 41. In order to ensure that the shift fork 40 is always arranged vertically upward, the rotating hole 42 connected to the rotating shaft 50 is constructed at the center of gravity of the bearing seat 60, so that the clamping groove 41 can always be arranged vertically upward, ensuring the stability of its cooperation with the tail wing 23. The thickness of the end side where the slot 41 is located is smaller than the thickness of the end side where the rotating hole 42 is located, and the outer side surface of the slot 41 is flush with the outer wall surface of the fork 40, and its inner side is a stepped structure, ensuring that the weight of its upper section is smaller than the weight of the lower section, so that the center of gravity of the fork 40 can be located at the position of the rotating hole 42.

[0057] Furthermore, a clearance groove 43 communicating with the rotating hole 42 is provided near one end of the shift fork 40 , and a clamping hole for fixing the rotating shaft 50 to cooperate with the rotating hole 42 is provided on the clearance groove 43 , so as to improve the safety and reliability of the cooperation between the shift fork 40 and the rotating shaft 50 .

[0058] like Fig. 9 As shown, the limit shaft 80 is a long rod structure, and the cross section of its lower end is constructed as an arc structure. The shoulder 81 is arranged on the flat side of the arc structure, and there are two shoulders 81, which are arranged in the same row up and down and are both arranged toward one side of the rotating shaft 50.

[0059] During the working process, the limit shaft 80 moves vertically up and down. When the limit shaft 80 moves downward, the upper shoulder 81 thereon can press the suspension section of the rotating shaft 50 and drive the fork 40 to rotate with the horizontal section of the rotating shaft 50 as the axis; the slot 41 of the fork 40 drives the tail 23 to drive the cutter 20 to slide along the slide 31, so that the cutter 20 moves away from the slot 41, that is, the cutter 20 is opened; the position of the slot 41 is reserved so that the binding tube 70 is placed below it to prepare for cutting the tube. When the limit shaft 80 moves upward, the lower shoulder 81 thereon can pull the suspension section of the rotating shaft 50 and drive the fork 40 to rotate in the opposite direction with the horizontal section of the rotating shaft 50 as the axis; the slot 41 of the fork 40 drives the tail 23 to drive the cutter 20 to slide along the slide 31, so that the cutter 20 moves toward the slot 41, that is, the cutter 20 is closed; the binding tube 70 is cut off, thereby completing the cutting work.

[0060] A binding machine is provided with the tube cutting linkage device as described above.

[0061] The tube cutting linkage device designed by the present application can accurately control the cutting position of the cutter and can cut in place at one time; it can not only quickly reset without getting stuck, nor shifting or misaligning, but also has a simple structure and reasonable layout, and can automatically cut the binding tube without external interference, thereby ensuring the cutting quality and improving the binding efficiency. The present application also proposes a binding machine provided with the tube cutting linkage device.

[0062] The above detailed description of the embodiments of the present application is only a preferred embodiment of the present application and cannot be considered to limit the scope of implementation of the present application. All equivalent changes and improvements made within the scope of the present application should still fall within the scope of the patent coverage of the present application.

Claims

1. A pipe cutting linkage device, characterized in that: include: A cutting knife, which is embedded in a slideway on the knife holder; A shifting assembly, which is equipped with a shifting fork and a rotating shaft connected to the shifting fork, and one end of the cutter is fixed in a slot of the shifting fork; When the binding tube is inserted into the cutting groove in the knife holder, the shift fork can swing around the rotating shaft as the axis, and drive the cutter to move toward the side close to the binding tube in the slideway to cut the binding tube, or move toward the side away from the binding tube to reset to its initial position.

2. A pipe cutting linkage device according to claim 1, characterized in that: The cutter is constructed as a long strip structure, and one end of the cutter fixed in the slot is constructed as a tail wing of a straight section structure.

3. A pipe cutting linkage device according to claim 2, characterized in that: The tail wing is arranged on the same side as the blade in the cutter, and the cutting edge of the blade is arranged opposite to the tail wing.

4. A pipe cutting linkage device according to claim 3, characterized in that: A mounting groove for fixing the blade is provided at one end of the cutter away from the tail wing, and the mounting groove is arranged obliquely along the corner of the cutter.

5. A pipe cutting linkage device according to claim 3 or 4, characterized in that: The slideway in the knife holder is matched with the long side surface of the cutter, and the cutting groove is arranged on a side close to the blade and is provided with a boss surface matched with the blade.

6. A pipe cutting linkage device according to claim 5, characterized in that: A convex stopper for preventing the shift fork from driving the tail wing to slide is also provided on one side of the slideway close to the convex surface.

7. A pipe cutting linkage device according to any one of claims 1 to 4 and 6, characterized in that: The toggle assembly also includes: A bearing seat, used for fixing the rotating shaft; A mounting plate, used for fixing the bearing seat and the tool holder; A limiting shaft, which vertically passes through the mounting plate and is provided with a stop shoulder for limiting the position of the rotating shaft; The shift fork, the bearing seat and the tool holder are arranged below the mounting plate, and the limit shaft is suspended above the mounting plate; The cutter is arranged between the cutter holder and the mounting plate; The mounting plate is also provided with a through hole through which the binding tube and the limiting shaft pass.

8. A pipe cutting linkage device according to claim 7, characterized in that: The cross section of the bearing seat is constructed as a U-shaped structure, and both ends thereof are open structures; the top of the bearing seat is connected to the mounting plate, and the open side thereof is arranged downward; connecting holes through which the rotating shaft passes are constructed on both side surfaces.

9. A pipe cutting linkage device according to claim 8, characterized in that: The rotating shaft is configured as an L-shaped structure, one end of which passes through the connecting hole and is connected to the shift fork; The other end is suspended upward and fixed on the shoulder.

10. A pipe cutting linkage device according to claim 8 or 9, characterized in that: The shift fork is arranged between the bearing seat and the tool holder, and the clamping groove is arranged at one end of the shift fork; the rotating hole connected with the rotating shaft is arranged at the center of gravity of the bearing seat; The thickness of the end side where the card slot is located is smaller than the thickness of the end side where the rotating hole is located.

11. A pipe cutting linkage device according to claim 10, characterized in that: A clearance groove communicating with the rotating hole is provided in the shift fork near one end of the rotating hole, and a clamping hole for fixing the rotating shaft to cooperate with the rotating hole is provided on the clearance groove.

12. A pipe cutting linkage device according to any one of claims 8 to 9 and 11, characterized in that: The cross section of the lower end of the limiting shaft is constructed as an arc-shaped structure, the shoulder is arranged on its flat side, and there are two shoulders, both of which are arranged toward one side of the rotating shaft.

13. A pipe cutting linkage device according to claim 12, characterized in that: The limiting shaft and the binding tube are arranged in parallel along the width of the mounting plate.

14. A binding machine, characterized in that: The invention is provided with a pipe cutting linkage device as described in any one of claims 1 to 13.

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