Pressing rivet transmission protection device and binding machine

Abstract

The utility model provides a pressing rivet transmission protection device and a binding machine, and the device at least comprises a pressing rivet carrier which is provided with a base body used for placing a rivet head, one end of the pressing rivet carrier is pivoted, and the other end of the pressing rivet carrier is suspended; a guide shaft extending outwards is arranged at the suspension end of the base body; the protection mechanism is provided with a guide groove, and a guide plate and a protection column are arranged on the single face of the inner side of the guide groove; the guide plate is movably connected with the guide groove through a movable guide column and arranged in the height direction of the guide groove. The protection column is connected to the guide groove, and the protection column and the guide plate are arranged in a clearance mode. According to the pressing rivet transmission protection device, positioning of pressing rivet transmission can be accurately controlled, the riveting head can be corrected when deviation occurs so as to protect normal operation of the working state of the riveting head, and the pressing rivet transmission protection device is simple in structure, easy to control, safe, reliable and stable in cooperation.

Description

Technical Field

[0001] The present application belongs to the technical field of binding machines, and in particular relates to a riveting transmission protection device and a binding machine provided with the transmission protection device. Background Art

[0002] During the existing riveting work, when the drill hole is tilted or not drilled through, the drill hole position will be incorrect. Once the rivet head and the drill hole position cannot be aligned, the rivet head will be offset. If the rivet head position is not corrected in time, technical problems such as the rivet head bending or jamming will occur, which will directly affect the binding quality and binding efficiency. Summary of the Invention

[0003] The present application provides a riveting transmission protection device, which solves the technical problem in the existing riveting transmission mechanism that the rivet head cannot be protected in time when it deviates, resulting in poor binding quality and low efficiency.

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

[0005] A pressure riveting transmission protection device, comprising at least:

[0006] A pressure riveting carrier is provided with a base body for placing a rivet head, one end of which is pivotally connected and the other end is suspended; a guide shaft extending outward is constructed on the suspended end of the base body;

[0007] A protection mechanism is provided with a guide groove, and a guide plate and a protection column are provided on a single side of the inner side of the guide groove;

[0008] The guide plate is movably connected to the guide groove through a movable guide post and is arranged along the height direction of the guide groove;

[0009] The protection column is connected to the guide groove and is configured with a gap between it and the guide plate.

[0010] Furthermore, the guide groove is opposite to the pivot end of the base body and is vertically arranged at a preset position of the suspension end of the base body after the base body rotates.

[0011] Furthermore, the guide shaft enters the guide channel between the guide plate and the guide groove from the lower end opening of the guide groove, rises to a preset position, then descends, and moves out from the lower end opening.

[0012] Furthermore, the lower end of the guide plate is constructed as an inclined structure, which is offset toward a side close to the protection column;

[0013] Preferably, the inclination angle of the lower end of the guide plate is greater than 30°.

[0014] Furthermore, a reset guide post for controlling the reset of the guide plate and a compression spring member sleeved on the reset guide post are provided between the guide plate and the guide groove;

[0015] One end of the reset guide post is fixed on the guide plate, and the other end thereof is protruded onto the side wall surface of the guide groove and movably matched with the guide groove.

[0016] Furthermore, the movable guide pillar, the reset guide pillar and the protection pillar are sequentially arranged from the outside to the inside along the height direction of the guide plate, and are symmetrically arranged relative to the center line of the guide plate.

[0017] Furthermore, the pivot end of the base body is arranged on the turntable, and a roller extending outward is provided on the side surface of the base body, and the axial direction of the roller is perpendicular to the axial direction of the guide shaft.

[0018] Furthermore, a guide wheel is provided between the turntable and the guide groove on one side close to the roller, and the guide wheel is provided with a curved slideway; a cam is provided on the top of the guide wheel, which is constructed as an annular surface with an arc-shaped notch;

[0019] A motor for driving the guide wheel to rotate is provided on a side of the guide wheel close to the turntable.

[0020] Furthermore, a transmission mechanism is provided, which is provided with a rocker arm 1 that cooperates with the cam, and is pivoted in sequence through a rocker arm 2, a pull rod and a lever, and then connected to the turntable through a steel wire rope connected to the lever to control the rotation of the turntable; a return spring is also provided between the lever and the turntable.

[0021] A binding machine is equipped with the transmission protection device as described above.

[0022] The present application proposes a pressure riveting transmission protection device that not only precisely controls the positioning of the pressure riveting transmission but also corrects any deviations in the rivet head to protect its normal operation. The device features a simple and easy-to-control structure, is safe, reliable, and provides stable operation. The present application also proposes a binding machine equipped with the transmission protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the pressure riveting transmission protection device in this application;

[0024] Figure 2 This is a three-dimensional diagram of the pressure riveting transmission protection device from another angle in this application;

[0025] Figure 3 It is a three-dimensional diagram of a partial structure of the pressure riveting transmission protection device in this application;

[0026] Figure 4 is a three-dimensional diagram of the protection mechanism in this application;

[0027] Figure 5 It is a front view of the protection mechanism in this application;

[0028] Figure 6 is a three-dimensional diagram of the transmission mechanism in this application;

[0029] Figure 7 This is a top view of the press riveting carrier in this application when it is not press-riveted;

[0030] Figure 8 This is a top view of the press riveting carrier during press riveting in this application.

[0031] In the picture:

[0032] 10. Base 20, guide wheel 21, slide

[0033] 22, cam 30, motor 40, riveting carrier

[0034] 41. Base body 42. Rivet head 43. Turntable

[0035] 44, guide shaft 45, roller 50, transmission mechanism

[0036] 51. Joystick 1 52. Joystick 2 53. Pull rod

[0037] 54, lever 55, wire rope 56, return spring

[0038] 60. Protection mechanism 61. Guide groove 62. Guide plate

[0039] 63. Protective column 64. Movable guide column 65. Reset guide column

[0040] 66. Compression spring DETAILED DESCRIPTION

[0041] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] This embodiment provides a pressure riveting transmission protection device, such as Figure 1-2As shown, it includes a base 10, a guide wheel 20 for rotating and driving the press riveting carrier 40 to rise and fall, a motor 30 for driving the guide wheel 20 to rotate, a transmission mechanism 50 for driving the press riveting carrier 40 to rotate, and a protection mechanism 60 for protecting and preventing the rivet head 42 from deflecting. The guide wheel 20, the motor 30, the press riveting carrier 40, and the protection mechanism 60 are all fixed to the base 10; one end of the transmission mechanism 50 is movably connected to the cam 22 on the guide wheel 20, and the other end is connected to the turntable 43 in the press riveting carrier 40. The guide wheel 20 and the motor 30 are connected by gear meshing and are located at one end of the base 10. The press riveting carrier 40 and the protection mechanism 60 are arranged on one side of the guide wheel 20, and the guide wheel 20 is located between the press riveting carrier 40 and the protection mechanism 60 and is staggered.

[0043] like Figure 3 As shown, the press riveting carrier 40 includes a turntable 43 fixed to the base 10 and a base body 41 fixedly connected to the turntable 43 via a main shaft. One end of the base body 41 is pivotally connected to the base 10 via the turntable 43, and its suspended end is driven by the turntable 43 to perform 90° reciprocating rotation around the main shaft. The main shaft is set at the axis of the turntable 43. At the same time, to improve the security of the connection between the base body 41 and the turntable 43, a thin shaft that is fixedly matched with the base body 41 is provided on the radial surface of the turntable 43. Through the cooperation of the main shaft and the thin shaft, the turntable 43 stably fixes the base body 41 thereto and can safely drive the base body 41 to rotate without worrying about the base body 41 slipping.

[0044] A rivet head 42 is fixed to the upper end of the base body 41 and is located on the side of the suspended end of the base body 41. The pivotal end of the base body 41 is mounted on a turntable 43, allowing it to be raised and lowered vertically by a main shaft. Furthermore, the pivotal end of the base body 41 is pivotally connected to the base 10 via the turntable 43, with the other end being suspended by the turntable 43. A roller 45 is mounted on the side end of the base body 41 and extends horizontally outward. The axial direction of the roller 45 is perpendicular to the axial direction of the guide shaft 44.

[0045] A guide shaft 44 is provided on the end surface of the suspended end of the base body 41. A roller 45 is provided on the side of the base body 41 near the guide wheel 20 to mate with the slideway 21 on the guide wheel 20. The roller 45 is located on the side of the suspended end of the base body 41 and corresponds to the position of the rivet head 42.

[0046] The guide shaft 44 is mainly used for the rivet head 42 during the riveting process. It can cooperate with the guide groove 61 in the protection mechanism 60 to stably fix the base body 41 in its position, and use the main shaft and the guide groove 61 as positioning columns on both sides to move up and down safely and accurately to drive the rivet head 42 to perform riveting work, and can quickly withdraw to improve the quality of riveting.

[0047] like Figure 7 As shown in the figure, the position of the base body 41 before riveting, that is, the initial position of the rivet head 42 at this time, is set along the length direction of the base 10. When riveting, the turntable 43 will drive the base body 41 to rotate 90 degrees toward the side close to the guide wheel 20. The state after rotation is as shown in the figure. Figure 8 As shown, the base body 41 is arranged perpendicular to the length direction of the base 10. At this time, the guide shaft 44 is arranged corresponding to the guide groove 61, and the roller 45 corresponds to the lowest point on the slide.

[0048] like Figure 4-5 As shown, the protective mechanism 60 includes a vertical guide slot 61. Its side near the turntable 43 is open, and its top is fixed to the drilling table (omitted in the figure). The back of the guide slot 61 is fixed to the frame on the base 10, and its lower end is open. The guide slot 61 is opposite the pivotal connection between the base body 41 and the base 10, and is vertically arranged at a predetermined position on the suspended end of the base body 41 after rotation.

[0049] A guide plate 62 and a protective column 63 are positioned on a single surface within the inner side of the guide groove 61. The protective column 63 is fixed to the sidewall of the guide groove 61, facing away from the guide wheel 20, and is positioned perpendicular to this sidewall. The guide plate 62 is movably connected to the sidewall of the guide groove 61 via a movable guide column 64 and is arranged along the height of the guide groove 61. Furthermore, the protective column 63 is fixedly positioned and mounted only on the sidewall of the guide groove 61. The length of the protective column 63 extending within the inner side of the guide groove 61 is less than the distance between the guide plate 62 and the sidewall of the guide groove 61 at its initial position. In other words, there is a gap between the protective column 63 and the guide plate 62 at their initial position.

[0050] Between the guide plate 62 and the sidewall on which it is mounted in the guide groove 61, a reset guide post 65 for controlling the return of the guide plate 62 and a compression spring 66 sleeved on the reset guide post 65 are provided. The movable guide post 64 and the reset guide post 65 share the same structure, being fixedly connected to the guide plate 62. Positioning washers are provided on the outer wall of the guide groove 61, with their ends facing away from the guide plate 62 protruding from the outer wall of the guide groove 61. This allows both the movable guide post 64 and the reset guide post 65 to freely engage with the guide groove 61. The support provided by the compression spring 66 ensures that the guide plate 62 initially has a clearance fit with the protective post 63.

[0051] When a hole is drilled at an angle or not fully through, it can cause the drill hole to be misaligned. At this point, the rivet head 42 cannot align with the drill hole. The return spring 56 in the transmission mechanism 50 drives the turntable 43 to reverse the displacement of the base body 41, causing the roller 45 in the guide groove 61 to press the guide plate 62 toward the side closer to the protective column 63. The deflection of the guide plate 62 pushes the movable guide column 64 and the return guide column 65 outward, forcing the compression spring 66 to retract. When the guide plate 62 retracts to a certain distance, it contacts the protective column 63, which then generates a protection signal, notifying the system that the protection mechanism 60 has been touched. The system then notifies the motor 30 to drive the guide wheel 20 to rotate in the opposite direction, preventing the base body 41 from further deflecting and bending the rivet head 42, allowing for timely adjustments to the riveting process.

[0052] In this embodiment, the movable guide posts 64, the reset guide posts 65, and the protective posts 63 are arranged sequentially from the outside to the inside along the height direction of the guide plate 62 and are symmetrically arranged with respect to the centerline of the guide plate 62. That is, along the length direction of the guide plate 62, there are two movable guide posts 64, two reset guide posts 65, and two protective posts 63. The two movable guide posts 64 are located at the outermost sides of the guide plate 62, the two protective posts are located at the innermost sides of the guide plate 62, and the two reset guide posts 65 are located between adjacent movable guide posts 64 and protective posts 63.

[0053] The guide shaft 44 enters the guide path between the guide plate 62 and the guide groove 61 from the lower end opening of the guide groove 61, rises to a preset position, then descends and moves out from the lower end opening.

[0054] Furthermore, the height of the guide plate 62 is less than that of the guide slot 61 and is centered relative to the height of the guide slot 61. The lower end of the guide plate 62 is tilted, with the lower end surface offset toward the protective column 63. This widens the entrance width of the opening, facilitating the entry of the guide shaft 44 into the opening and preventing collision between the guide shaft 44 and the end of the guide plate 62. Preferably, the inclination angle θ of the lower end surface of the guide plate 62 relative to the horizontal plane is greater than 30° to enhance the precision and safety of the fit between the guide shaft 44 and the guide slot 61.

[0055] like Figure 6As shown, a guide wheel 20 cooperating with the roller 45 is provided on the side between the turntable 43 and the guide groove 61 near the roller 45, and a curved slide is provided on the guide wheel 20; and a motor 30 for driving the guide wheel 20 to rotate is provided on the side of the guide wheel 20 near the turntable 43. The structure of the guide wheel 20 is a commonly used curved slide in this field, and its lowest point is located at the position where the roller 45 is located when the rivet head 42 is riveting; its highest position is at the top of the guide wheel 20 and is opposite to its lowest position. A cam 22 is provided at the top of the guide wheel 20. The cam 22 is constructed as an annular surface with an arc-shaped notch, which can be driven by the rotating shaft of the guide wheel 20 to rotate continuously in one direction. Its rotation direction is the same as that of the guide wheel 20, and its transmission direction is as shown in FIG. Figure 7-8 Indicated by the black arrow.

[0056] like Figure 7-8 As shown, the transmission mechanism includes a rocker 1 51 that openly cooperates with the arc-shaped notch in the cam 22, which is pivoted in sequence through a rocker 2 52, a pull rod 53 and a lever 54, and then connected to the turntable 43 through a wire rope 55 connected to the lever 54 to control the rotation of the turntable 43; a return spring 56 is also provided between the lever 54 and the turntable 43.

[0057] The rocker 51 is suspended and pivoted on a workbench (not shown) and is positioned downwardly above the guide wheel 20 near the base 10, so that both ends are movably suspended. The lower surface of the rocker 51 near the guide wheel 20 is provided with a guide wheel that movably cooperates with the arc-shaped notch in the cam 22. The axial direction of the guide wheel is perpendicular to the lower surface of the rocker 51; the side surface of the other end of the rocker 51 away from the guide wheel is provided with a curved groove. The cam 22 rotates while contacting the guide wheel. When the guide wheel rolls to the notch, the matching structure is as shown in FIG. Figure 7 As shown; when the guide wheel leaves the notch position, the matching structure is as shown Figure 8 shown.

[0058] The second rocker arm 52 is vertically pivoted on the frame, with its upper end suspended and provided with an arc surface that cooperates with the groove 412. This arc surface structure is conducive to being driven by the first rocker arm 51, driving the second rocker arm 52 to swing back and forth in the vertical direction with its connection point with the frame as the center; that is, the horizontal swing kinetic energy is transferred to the second rocker arm 52, causing it to swing in the vertical direction.

[0059] Lever 54 is pivoted to a vertically mounted upright post. One end is pivotally connected to the lower end of rocker arm 2 52 via a pull rod 53 positioned outside the housing 20, while the other end is connected to the turntable 43 via a wire rope 55. Lever 54 is positioned on the side of the base 10, away from the guide wheel 20, via the upright post. Lever 54 extends along the width of the base 10, with its ends positioned on either side of the upright post. The length of the swing arm connecting lever 54 to pull rod 53 is shorter than the length of the swing arm connecting lever 54 to wire rope 55. This allows lever 54 to pull wire rope 55 with less force, causing the wire rope 55 to rotate the turntable 43, achieving the goal of rotating the turntable 43 with minimal force. The rotation of cam 22 causes rocker arm 1 51 to swing, which in turn causes rocker arm 2 52 to swing via pull rod 53, pulling lever 54. This causes lever 54 to rotate the turntable 43 via wire rope 55, thereby driving the base 41 and the rivet head 42 to rotate.

[0060] like Figure 7 As shown, two return springs 56 are provided on the base 10 for controlling the return of the lever 54 and the turntable 43. One end of each return spring 56 is fixed to a positioning post. The positioning post, the central axis of the turntable 43, and the guide slot 61 are all arranged in the same row in the width direction of the base 10. The base 10 also has an intermediate pulley shaft for adjusting the direction of the wire rope 55. The intermediate pulley shaft is located between the positioning post and the turntable 43, near the side where the lever 54 is located. The intermediate pulley shaft can also be used to adjust the tension of the wire rope 55 to ensure that the wire rope 55 does not shake when it is pulled back and forth.

[0061] like Figure 6 As shown, the other end of the return spring 56 for controlling the lever 54 is connected to the end of the lever 54 connected to the wire rope 55 and is located below the connection point of the wire rope 55. The other end of the return spring 56 for controlling the turntable 43 is connected to a non-center point on the radial surface of the turntable 43, and this connection point is located on the side of the turntable 43 close to the motor 31; the wire rope 55 is wound in a slot in the turntable 43.

[0062] The motor 30 rotates the guide wheel 20, causing the arc-shaped notch in the cam 22 to swing the rocker 1 51. Rocker 1 51 is then pivoted through rocker 2 52, a pull rod 53, and a lever 54. It is then connected to the turntable 43 via a wire rope 55 connected to the lever 54, controlling a 90° rotation of the turntable 43. This causes the collective 41 to rotate the rivet head 42 from its initial position to its working position. The guide wheel 20 continues to rotate, driving the roller 45 upward via the slide 21. Simultaneously, the guide pin 44 is embedded in the guideway between the guide plate 62 and the guide slot 61. If the rivet head 42 is misaligned with the drilled hole due to slanting or incomplete drilling, the turntable 43, driven by the return spring 56, causes the base body 41 to shift in the opposite direction, causing the roller 45 in the guide slot 61 to press against the guide plate 62 and move toward the protective column 63. The deflection of the guide plate 62 pushes the movable guide post 64 and the reset guide post 65 outward, forcing the compression spring 66 to retract. When the guide plate 62 retracts to a certain distance, it contacts the protective post 63, which then generates a protection signal, notifying the system to contact the protection mechanism 60. The system then instructs the motor 30 to drive the guide wheel 20 to rotate in the opposite direction, preventing the base body 41 from further deflecting and bending the protective rivet head 42, allowing for timely adjustments to the riveting process.

[0063] A binding machine is equipped with the transmission protection device as described above.

[0064] The present application proposes a pressure riveting transmission protection device that not only precisely controls the positioning of the pressure riveting transmission but also corrects any deviations in the rivet head to protect its normal operation. The device features a simple and easy-to-control structure, is safe, reliable, and provides stable operation. The present application also proposes a binding machine equipped with the transmission protection device.

[0065] The above embodiments of the present application are described in detail. The contents described are only preferred embodiments of the present application and should not 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 application.

Claims

1. A riveting transmission protection device, characterized in that: At least: A pressure riveting carrier is provided with a base body for placing a rivet head, one end of which is pivotally connected and the other end is suspended; a guide shaft extending outward is constructed on the suspended end of the base body; A protection mechanism is provided with a guide groove, and a guide plate and a protection column are provided on a single side of the inner side of the guide groove; The guide plate is movably connected to the guide groove through a movable guide post and is arranged along the height direction of the guide groove; The protection column is connected to the guide groove and is configured with a gap between it and the guide plate.

2. A pressure riveting transmission protection device according to claim 1, characterized in that: The guide groove is arranged opposite to the pivot end of the base body and is vertically arranged at a preset position of the suspension end of the base body after the base body rotates.

3. A pressure riveting transmission protection device according to claim 1 or 2, characterized in that: The guide shaft enters the guide channel between the guide plate and the guide groove from the lower end opening of the guide groove, rises to a preset position, then descends, and moves out from the lower end opening.

4. A pressure riveting transmission protection device according to claim 3, characterized in that: The lower end of the guide plate is configured as an inclined structure, which is offset toward a side close to the protection column.

5. The pressure riveting transmission protection device according to claim 4, characterized in that: The inclination angle of the lower end of the guide plate is greater than 30°.

6. A pressure riveting transmission protection device according to any one of claims 1-2, 4-5, characterized in that: A reset guide post for controlling the reset of the guide plate and a compression spring sleeved on the reset guide post are provided between the guide plate and the guide groove; One end of the reset guide post is fixed on the guide plate, and the other end thereof is protruded onto the side wall surface of the guide groove and movably matched with the guide groove.

7. The pressure riveting transmission protection device according to claim 6, characterized in that: The movable guide pillars, the reset guide pillars and the protection pillars are arranged in sequence from the outside to the inside along the height direction of the guide plate and are symmetrically arranged relative to the center line of the guide plate.

8. A pressure riveting transmission protection device according to any one of claims 1-2, 4-5, and 7, characterized in that: The pivot end of the base body is arranged on the turntable, and a roller extending outward is provided on the side surface of the base body, and the axial direction of the roller is perpendicular to the axial direction of the guide shaft.

9. The pressure riveting transmission protection device according to claim 8, characterized in that: A guide wheel is provided between the turntable and the guide groove on one side close to the roller, and the guide wheel is provided with a curved slideway; a cam is provided on the top of the guide wheel, which is constructed as an annular surface with an arc-shaped notch; A motor for driving the guide wheel to rotate is provided on a side of the guide wheel close to the turntable.

10. The pressure riveting transmission protection device according to claim 9, characterized in that: A transmission mechanism is also provided, which is provided with a rocker arm 1 that cooperates with the cam, and is pivoted through a rocker arm 2, a pull rod and a lever in sequence, and then connected to the turntable through a steel wire rope connected to the lever to control the rotation of the turntable; a return spring is also provided between the lever and the turntable.

11. A binding machine, characterized in that: The invention is provided with a transmission protection device as described in any one of claims 1 to 10.

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