Binding device

Abstract

The invention provides binding equipment. The binding equipment comprises a base; the punching device is arranged at one end of the base, and the punching device comprises a punching tool which can be arranged in a lifting mode; the threading device and the punching device are arranged at one end of the base in a spaced mode, and the threading device comprises a threading needle which can be arranged in a lifting mode; the moving platform is movably arranged on the base in the horizontal direction, a paper placing position is arranged on the moving platform, and the moving platform moves to have a punching position, a threading position and an avoiding position; when the movable platform is located at the punching position, the paper placing position is located below the punching cutter; when the movable platform is located at the threading position, the paper placing position is located above the threading needle; when the moving platform is located at the avoiding position, the paper placing position is located on one side of the punching cutter and the threading needle. According to the technical scheme, the problems that in the related technology, manual binding operation is tedious, and binding efficiency is low are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of binding equipment, and in particular to a binding equipment. Background Art

[0002] In the related art, paper is usually bound by manual punching and threading, that is, a hole is punched at the binding position of the paper manually, and then a threading needle is used to drive the binding thread through the hole to connect the paper and bind the document.

[0003] When there are many sheets of paper to be bound, the manual punching and threading method is inefficient and cumbersome to operate. Therefore, the manual binding operation is cumbersome and the binding efficiency is low. Summary of the invention

[0004] The main purpose of the present invention is to provide a binding device to solve the problems of cumbersome manual binding operations and low binding efficiency in the related art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a binding device, including: a base; a punching device, which is arranged at one end of the base, and the punching device includes a punching tool that can be raised and lowered; a threading device, which is arranged at one end of the base with a spacing from the punching device, and the threading device includes a threading needle that can be raised and lowered; a moving platform, which is movably arranged on the base in a horizontal direction, and a paper placement position is arranged on the moving platform, and the moving platform moves to have a punching position, a threading position and an avoidance position; when the moving platform is in the punching position, the paper placement position is located below the punching tool; when the moving platform is in the threading position, the paper placement position is located above the threading needle; when the moving platform is in the avoidance position, the paper placement position is located on one side of the punching tool and the threading needle.

[0006] Furthermore, the binding device also includes a paper pressing device arranged on the mobile platform, the paper pressing device includes a pressing plate arranged on the mobile platform movably up and down, the pressing plate moves up and down to have a paper pressing position moving close to the mobile platform and a releasing position moving away from the mobile platform.

[0007] Furthermore, the paper pressing device also includes a column fixedly arranged on the movable platform and an elastic member sleeved outside the column, the pressing plate passes through the column, the elastic member is located between the pressing plate and the movable platform, and the elastic member applies an upward elastic force to the pressing plate so that the pressing plate can remain in the paper pressing position.

[0008] Furthermore, the paper pressing device also includes a clamping piece swingably mounted on the column, the clamping piece is located on the side of the pressure plate away from the elastic piece, a first clamping hole is provided on the clamping piece, the column is inserted into the first clamping hole, and the clamping piece swings to have a clamping position and an avoidance position; when the clamping piece is in the clamping position, the axis of the first clamping hole is arranged at an angle to the axis of the column, and the inner side wall of the first clamping hole abuts against the outer side wall of the column, the abutting end of the clamping piece abuts against the pressure plate, and the friction force between the first clamping hole and the column is greater than the elastic force, so that the pressure plate can be maintained in the paper pressing position; when the clamping piece is in the avoidance position, the inner side wall of the first clamping hole is separated from the outer side wall of the column, so that the pressure plate can be switched to the release position under the action of the elastic force.

[0009] Furthermore, the clamping component includes a first plate body and a second plate body connected to the first end of the first plate body, the first plate body is connected to the second plate body at an angle, the first clamping hole is arranged on the first plate body, and the first clamping hole is a first perfect circular hole; when the clamping component is not subjected to external force, the first plate body and the column are inclined and the clamping component is in a clamping position; when the first plate body is subjected to external force so that the first plate body and the column are vertically arranged, the clamping component is in an avoidance position.

[0010] Furthermore, the clamping member also includes a resistance plate connected to the second end of the first plate body and a stopper fixedly connected to the pressure plate. When the pressure plate moves up and down, the resistance plate and the stopper cooperate to enable the clamping member to move synchronously with the pressure plate.

[0011] Furthermore, a second clamping hole is provided on the resistance plate, and the stopper includes a rod body fixedly provided on the pressure plate and a stop head provided at one end of the rod body, the rod body is passed through the second clamping hole, the stop head cooperates with the resistance plate stopper, and the second clamping hole is a second perfect circular hole; when the clamping part is not subjected to external force, the resistance plate and the rod body are tilted, the inner wall of the second clamping hole abuts against the outer wall of the column, and the axis of the second clamping hole is inclined to the axis of the rod body, so that the clamping part can be maintained in the clamping position; the clamping part swings to separate the inner wall of the second clamping hole from the outer wall of the rod body, so that the clamping part can be switched to the avoidance position.

[0012] Furthermore, the clamping member also includes an abutment plate connected between the second end of the first plate body and the resistance plate, the abutment plate is bent downward relative to the first plate body, and the abutment plate and the resistance plate are arranged at an angle, and the connection between the abutment plate and the resistance plate is the abutment end.

[0013] Furthermore, the first plate body is arranged in parallel with the resistance plate.

[0014] Furthermore, the diameter of the first perfect circular hole is larger than the diameter of the column, and the difference between the diameter of the first perfect circular hole and the diameter of the column is greater than or equal to 0.5 mm and less than or equal to 1.0 mm; and / or, the diameter of the second perfect circular hole is larger than the diameter of the rod body, and the difference between the diameter of the second perfect circular hole and the diameter of the rod body is greater than or equal to 0.5 mm and less than or equal to 1.0 mm.

[0015] The technical solution of the present invention is applied, and the binding device includes: a base, a punching device, a threading device and a mobile platform. The punching device is arranged at one end of the base, and the punching device includes a punching tool that can be raised and lowered. The threading device is arranged at one end of the base with a spacing from the punching device, and the threading device includes a threading needle that can be raised and lowered. The mobile platform is movably arranged on the base in the horizontal direction, and a paper placement position is arranged on the mobile platform. The mobile platform moves to have a punching position, a threading position and an avoidance position. When the mobile platform is in the punching position, the paper placement position is located below the punching tool. When the mobile platform is in the threading position, the paper placement position is located above the threading needle. When the mobile platform is in the avoidance position, the paper placement position is located on one side of the punching tool and the threading needle. In this way, the operator can place the paper on the paper placement position, and the mobile platform drives the paper to move. The mobile platform is moved to the punching position, so that the paper is located below the punching tool, and the punching tool descends to perform a punching operation on the paper. Then move the mobile platform to the threading position so that the paper is located above the threading needle, and the threading needle rises to thread the binding thread into the hole, so that the paper can be bound by the binding thread. The setting of the mobile platform facilitates the movement of the paper, reduces the possibility of the paper being scattered when switching between the punching device and the threading device, and makes the use of the binding device more convenient and reliable. In this way, the binding device is used for binding, which is simple to operate and improves the binding efficiency. Therefore, the technical solution of the present application effectively solves the problems of cumbersome operation and low binding efficiency of manual binding in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a binding device according to the present invention is shown;

[0018] Figure 2 Shows Figure 1 A schematic diagram of the three-dimensional structure of the binding device when the clamping member is in the clamping position;

[0019] Figure 3 Shows Figure 1 A schematic diagram of the three-dimensional structure of a binding device when the clamping part is in an avoidance position.

[0020] The above drawings include the following reference numerals:

[0021] 10. Base;

[0022] 20. Punching device;

[0023] 30. Threading device;

[0024] 40. Mobile platform;

[0025] 50. Paper pressing device; 51. Pressing plate; 52. Column; 53. Elastic member;

[0026] 61. First plate body; 611. First clamping hole; 62. Second plate body; 63. Resistance plate; 631. Second clamping hole; 64. Abutting plate; 65. Rod body; 66. Stopper head. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0030] In this embodiment, if Figure 1 As shown, the binding device includes: a base 10, a punching device 20, a threading device 30 and a mobile platform 40. The punching device 20 is arranged at one end of the base 10, and the punching device 20 includes a punching tool that can be raised and lowered. The threading device 30 is arranged at one end of the base 10 with a spacing from the punching device 20, and the threading device 30 includes a threading needle that can be raised and lowered. The mobile platform 40 is movably arranged on the base 10 in the horizontal direction, and a paper placement position is arranged on the mobile platform 40. The mobile platform 40 moves to have a punching position, a threading position and an avoidance position. When the mobile platform 40 is in the punching position, the paper placement position is located below the punching tool. When the mobile platform 40 is in the threading position, the paper placement position is located above the threading needle. When the mobile platform 40 is in the avoidance position, the paper placement position is located on one side of the punching tool and the threading needle.

[0031] In this way, the operator can place the paper on the paper placement position, and the mobile platform 40 drives the paper to move. Move the mobile platform 40 to the punching position so that the paper is located below the punching tool, and the punching tool descends to perform a punching operation on the paper. Then move the mobile platform 40 to the threading position so that the paper is located above the threading needle, and the threading needle rises to thread the binding wire into the hole, so as to bind the paper with the binding wire. The setting of the mobile platform 40 facilitates the movement of the paper, reduces the possibility of the paper being scattered when switching between the punching device 20 and the threading device 30, and makes the use of the binding device more convenient and reliable. In this way, the binding device is used for binding, which is simple to operate and improves the binding efficiency. Therefore, the technical solution of this embodiment effectively solves the problems of cumbersome operation and low binding efficiency of manual binding in the related art.

[0032] like Figures 1 to 3As shown, the binding device further includes a paper pressing device 50 disposed on the mobile platform 40, and the paper pressing device 50 includes a pressing plate 51 disposed on the mobile platform 40 and movable up and down, and the pressing plate 51 moves up and down to have a paper pressing position moving close to the mobile platform 40 and a release position moving away from the mobile platform 40. The design of the paper pressing device 50 can keep the paper flat during the punching operation and the threading operation, avoid the movement or warping of the paper during the operation, and improve the accuracy and aesthetics of the binding. In addition, the design of the paper pressing device 50 can enable the paper to better follow the synchronous movement of the mobile platform 40.

[0033] like Figures 1 to 3 As shown, the paper pressing device 50 also includes a column 52 fixedly arranged on the mobile platform 40 and an elastic member 53 sleeved outside the column 52. The pressing plate 51 passes through the column 52, and the elastic member 53 is located between the pressing plate 51 and the mobile platform 40. The elastic member 53 applies an upward elastic force to the pressing plate 51 so that the pressing plate 51 can be kept in the paper pressing position. This design enables the pressing plate 51 to automatically remain in the paper pressing position when not subjected to external force, reduces the operation steps, and improves the convenience of using the paper pressing device 50. The column 52 and the elastic member 53 have a simple structure and are easy to process and assemble.

[0034] like Figures 1 to 3As shown, the paper pressing device 50 also includes a clamping member that is swingably sleeved on the column 52, and the clamping member is located on the side of the pressing plate 51 away from the elastic member 53. The clamping member is provided with a first clamping hole 611, and the column 52 is inserted into the first clamping hole 611. The clamping member swings to have a clamping position and an avoidance position. When the clamping member is in the clamping position, the axis of the first clamping hole 611 is set at an angle to the axis of the column 52, and the inner side wall of the first clamping hole 611 abuts against the outer side wall of the column 52, and the abutting end of the clamping member abuts against the pressing plate 51, and the friction between the first clamping hole 611 and the column 52 is greater than the elastic force, so that the pressing plate 51 can be maintained at the paper pressing position. In this way, the abutment between the abutting end of the clamping member and the pressing plate 51 can make the clamping member, when not subjected to external force, be able to maintain the position where the axis of the first clamping hole 611 is set at an angle with the axis of the column 52, so that the inner side wall of the first clamping hole 611 and the outer side wall of the column 52 are abutted, so that the friction between the first clamping hole 611 and the column 52 is greater than the elastic force, so that the pressing plate 51 can be maintained at the paper pressing position. When the clamping member is in the avoidance position, the inner side wall of the first clamping hole 611 is separated from the outer side wall of the column 52, so that the pressing plate 51 can be switched to the release position under the action of the elastic force. In this way, by driving the clamping member to swing, the clamping member is switched to the avoidance position, so that the inner side wall of the first clamping hole 611 is separated from the outer side wall of the column 52, the friction between the first clamping hole 611 and the column 52 disappears, and the pressing plate 51 bounces up and switches to the release position under the action of the elastic force. The provision of the clamping piece facilitates the switching of the pressing plate 51 between the paper pressing position and the releasing position, facilitates the insertion and removal of paper, and improves the flexibility and operational convenience of the device.

[0035] In this embodiment, the design of the clamping member utilizes the friction force and the swinging principle, which not only ensures the stability of the pressing plate 51 during the binding process, but also enables the flexible adjustment to the avoidance position to facilitate the replacement of paper.

[0036] like Figures 1 to 3As shown, the clamping member includes a first plate body 61 and a second plate body 62 connected to a first end of the first plate body 61, and the first plate body 61 and the second plate body 62 are connected at an angle. A first clamping hole 611 is provided on the first plate body 61, and the first clamping hole 611 is a first perfect circular hole. When the clamping member is not subjected to external force, the first plate body 61 and the column 52 are arranged obliquely, and the clamping member is in a clamping position. When the first plate body 61 is subjected to external force so that the first plate body 61 and the column 52 are arranged vertically, the clamping member is in an avoidance position. The first plate 61 is connected to the second plate 62 at an angle, so that the first plate 61 can be subjected to the gravity of the second plate 62, so that when the clamping member is not subjected to external force, the first plate 61 can be set at an angle to the horizontal direction, so that the first plate 61 and the column 52 are tilted, so that the axis of the first circular hole can be tilted with the column 52, and the side wall of the first circular hole abuts against the outer wall of the column 52 to generate a friction force that can overcome the elastic force to keep the clamping member in the clamping position. After the first plate 61 is subjected to external force, the clamping member swings, so that the first plate 61 and the column 52 are vertically set, the axis of the first circular hole can be parallel to the axis of the column 52, so that the side wall of the first circular hole is separated from the outer wall of the column 52, the friction between the first circular hole and the column 52 disappears, and the pressure plate 51 bounces up and switches to the release position under the action of the elastic force. This design enables the clamping member to be easily switched to the avoidance position, which is convenient for the movement of the pressing plate 51 and the handling of paper, and is suitable for occasions where rapid paper replacement or continuous binding operations are required.

[0037] It should be noted that the first plate body 61 and the column 52 are arranged obliquely, which means that the plane where the first plate body 61 is located is not perpendicular to the axis of the column 52 .

[0038] In this embodiment, through the design of the clamping parts and the external force control, the stable paper pressing and quick release of the pressing plate 51 are achieved, the binding speed is improved, and the high-efficiency binding requirements are met.

[0039] like Figures 1 to 3 As shown, the clamping member also includes a resistance plate 63 connected to the second end of the first plate body 61 and a stopper fixedly connected to the pressing plate 51. When the pressing plate 51 moves up and down, the resistance plate 63 and the stopper stopper cooperate to enable the clamping member to move synchronously with the pressing plate 51. The setting of the resistance plate 63 and the stopper enables the clamping member to maintain connection with the pressing plate 51, avoiding the possibility of the clamping member and the pressing plate 51 being separated when the pressing plate 51 moves up and down, and enables the clamping member and the pressing plate 51 to move synchronously, so as to keep the pressing plate 51 in the paper pressing position. This design ensures the synchronization between the clamping member and the pressing plate 51, avoids the misalignment of the clamping member during the movement of the pressing plate 51, and improves the stability and reliability of the binding device.

[0040] like Figures 1 to 3As shown, a second clamping hole 631 is provided on the resistance plate 63. The stopper includes a rod body 65 fixedly provided on the pressure plate 51 and a stopper head 66 provided at one end of the rod body 65. The rod body 65 is inserted into the second clamping hole 631, and the stopper head 66 cooperates with the resistance plate 63 to stop. The second clamping hole 631 is a second perfect circular hole. When the clamping member is not subjected to external force, the resistance plate 63 and the rod body 65 are tilted, the inner side wall of the second clamping hole 631 abuts against the outer side wall of the column 52, and the axis of the second clamping hole 631 is tilted to the axis of the rod body 65, so that the clamping member can be kept in the clamping position. The clamping member swings to separate the inner side wall of the second clamping hole 631 from the outer side wall of the rod body 65, so that the clamping member can be switched to the avoidance position. The setting of the second clamping hole 631 can cooperate with the rod body 65 to better keep the clamping member in the clamping position. When the clamping member is not subjected to external force, the resistance plate 63 and the rod body 65 are tilted so that the axis of the second perfect circular hole can be tilted with the rod body 65, and the side wall of the second perfect circular hole abuts against the outer wall of the rod body 65 to generate friction to better keep the clamping member in the clamping position. The clamping member swings, so that the resistance plate 63 and the rod body 65 are vertically arranged, and the axis of the second perfect circular hole can be parallel to the axis of the rod body 65, so that the side wall of the second perfect circular hole is separated from the outer wall of the rod body 65, and the friction between the second perfect circular hole and the rod body 65 disappears, and the pressure plate 51 bounces up under the action of elastic force and switches to the release position.

[0041] It should be noted that the oblique arrangement of the resistance plate 63 and the rod body 65 means that the plane where the resistance plate 63 is located is not perpendicular to the axis of the rod body 65 .

[0042] In this embodiment, the matching design between the second clamping hole 631 and the rod body 65 further enhances the stability of the clamping member, so that the clamping member can be more reliably maintained in the clamping position.

[0043] like Figures 1 to 3As shown, the clamping member further includes an abutment plate 64 connected between the second end of the first plate body 61 and the resistance plate 63, the abutment plate 64 is bent downward relative to the first plate body 61, and the abutment plate 64 is arranged at an angle with the resistance plate 63, and the connection between the abutment plate 64 and the resistance plate 63 is the abutment end. The arrangement of the abutment plate 64 makes the structure of the clamping member more compact, reduces the volume of the clamping member, and is easy to process. The abutment plate 64 is bent downward relative to the first plate body 61, so that the abutment end formed at the connection between the abutment plate 64 and the resistance plate 63 can be located below the second end of the first plate body 61, so that when the clamping member is not subjected to external force, the second end of the first plate body 61 can be lifted by the abutment plate 64, so that the first plate body 61 is arranged at an angle with the horizontal direction, so that the first plate body 61 can be arranged obliquely with the column 52, so that the friction force is generated between the first plate body 61 and the column 52, so as to keep the clamping member in the clamping position. The abutting end contacts and abuts against the pressing plate 51 to support the second end of the first plate body 61 , so that when the clamping member is not subjected to external force, the second end of the first plate body 61 can be lifted by the abutting plate 64 .

[0044] like Figures 1 to 3 As shown, the first plate body 61 is arranged in parallel with the resistance plate 63. Such an arrangement enables a large friction force to be maintained between the first perfect circular hole and the column 52 and between the second perfect circular hole and the rod body 65, so as to better maintain the clamping member in the clamping position.

[0045] like Figures 1 to 3 As shown, the diameter of the first perfect circular hole is larger than the diameter of the column 52, and the difference between the diameter of the first perfect circular hole and the diameter of the column 52 is greater than or equal to 0.5 mm and less than or equal to 1.0 mm. This design ensures the stability of the clamping part and ensures that it can move smoothly when needed by accurately controlling the gap between the first perfect circular hole and the column 52. The diameter of the second perfect circular hole is larger than the diameter of the rod body 65, and the difference between the diameter of the second perfect circular hole and the diameter of the rod body 65 is greater than or equal to 0.5 mm and less than or equal to 1.0 mm. This design ensures the stability of the clamping part and ensures that it can move smoothly when needed by accurately controlling the gap between the second perfect circular hole and the rod body 65.

[0046] In other embodiments, the diameter of the first perfect circular hole is greater than the diameter of the column 52, and the difference between the diameter of the first perfect circular hole and the diameter of the column 52 is greater than or equal to 0.5 mm and less than or equal to 1.0 mm. Alternatively, the diameter of the second perfect circular hole is greater than the diameter of the rod body 65, and the difference between the diameter of the second perfect circular hole and the diameter of the rod body 65 is greater than or equal to 0.5 mm and less than or equal to 1.0 mm.

[0047] In this embodiment, precise diameter difference control ensures the stability and flexibility of the clip, and can find the best balance point among various document binding requirements.

[0048] In this embodiment, the binding device further includes a handle capable of driving the punching device 20 to move up and down, a drilling protection pad disposed on the base 10 and below the punching tool, and a thread ball disposed on one side of the threading device 30. The thread ball contains a binding thread, and the binding thread is placed above the threading needle so that the binding thread can pass through the hole for binding.

[0049] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0050] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0051] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A binding device, characterized in that: include: Base (10); A punching device (20) is arranged at one end of the base (10), and the punching device (20) comprises a punching tool that can be raised and lowered; A threading device (30) is arranged at one end of the base (10) at a distance from the punching device (20), and the threading device (30) comprises a threading needle that can be raised and lowered; A mobile platform (40) is movably arranged on the base (10) in a horizontal direction, and a paper placement position is arranged on the mobile platform (40). The mobile platform (40) moves to have a punching position, a threading position, and an avoidance position; when the mobile platform (40) is in the punching position, the paper placement position is located below the punching tool; when the mobile platform (40) is in the threading position, the paper placement position is located above the threading needle; when the mobile platform (40) is in the avoidance position, the paper placement position is located on one side of the punching tool and the threading needle.

2. The binding device according to claim 1, characterized in that: The binding device also includes a paper pressing device (50) arranged on the movable platform (40), and the paper pressing device (50) includes a pressing plate (51) arranged on the movable platform (40) so as to be movable up and down, and the pressing plate (51) moves up and down to have a paper pressing position moving close to the movable platform (40) and a releasing position moving away from the movable platform (40).

3. The binding device according to claim 2, characterized in that: The paper pressing device (50) further comprises a column (52) fixedly arranged on the movable platform (40) and an elastic member (53) sleeved outside the column (52); the pressing plate (51) passes through the column (52); the elastic member (53) is located between the pressing plate (51) and the movable platform (40); the elastic member (53) applies an upward elastic force to the pressing plate (51) so that the pressing plate (51) can be maintained at the paper pressing position.

4. The binding device according to claim 3, characterized in that: The paper pressing device (50) further comprises a clamping member which is swingably sleeved on the upright post (52), the clamping member being located on a side of the pressing plate (51) away from the elastic member (53), the clamping member being provided with a first clamping hole (611), the upright post (52) being inserted into the first clamping hole (611), and the clamping member being swingable to have a clamping position and an avoidance position; When the clamping member is in the clamping position, the axis of the first clamping hole (611) is arranged at an angle with the axis of the column (52), and the inner wall of the first clamping hole (611) abuts against the outer wall of the column (52), the abutting end of the clamping member abuts against the pressure plate (51), and the friction force between the first clamping hole (611) and the column (52) is greater than the elastic force, so that the pressure plate (51) can be maintained in the paper pressing position; when the clamping member is in the avoidance position, the inner wall of the first clamping hole (611) is separated from the outer wall of the column (52), so that the pressure plate (51) can be switched to the release position under the action of the elastic force.

5. The binding device according to claim 4, characterized in that: The clamping member comprises a first plate body (61) and a second plate body (62) connected to a first end of the first plate body (61), the first plate body (61) and the second plate body (62) are connected at an angle, the first clamping hole (611) is arranged on the first plate body (61), and the first clamping hole (611) is a first perfect circular hole; When the clamping member is not subjected to external force, the first plate body (61) and the column (52) are arranged at an angle, and the clamping member is in the clamping position; when the first plate body (61) is subjected to external force so that the first plate body (61) and the column (52) are arranged vertically, the clamping member is in the avoiding position.

6. The binding device according to claim 5, characterized in that: The clamping member also includes a resistance plate (63) connected to the second end of the first plate body (61) and a stopper fixedly connected to the pressure plate (51); when the pressure plate (51) moves up and down, the resistance plate (63) cooperates with the stopper to enable the clamping member to move synchronously with the pressure plate (51).

7. The binding device according to claim 6, characterized in that: The resistance plate (63) is provided with a second clamping hole (631), the stopper comprises a rod body (65) fixedly arranged on the pressure plate (51) and a stopper head (66) arranged at one end of the rod body (65), the rod body (65) is inserted into the second clamping hole (631), the stopper head (66) is engaged with the resistance plate (63) in a stopper manner, and the second clamping hole (631) is a second perfect circular hole; When the clamping member is not subjected to external force, the resistance plate (63) and the rod body (65) are arranged at an angle, the inner wall of the second clamping hole (631) abuts against the outer wall of the column (52), and the axis of the second clamping hole (631) is inclined to the axis of the rod body (65), so that the clamping member can be maintained in the clamping position; the clamping member swings to separate the inner wall of the second clamping hole (631) from the outer wall of the rod body (65), so that the clamping member can be switched to the avoidance position.

8. The binding device according to claim 7, characterized in that: The clamping member also includes an abutment plate (64) connected between the second end of the first plate body (61) and the resistance plate (63); the abutment plate (64) is bent downward relative to the first plate body (61), and the abutment plate (64) is arranged at an angle to the resistance plate (63); the connection between the abutment plate (64) and the resistance plate (63) is the abutment end.

9. The binding device according to claim 6, characterized in that: The first plate body (61) and the resistance plate (63) are arranged in parallel.

10. The binding device according to claim 7, characterized in that: The diameter of the first perfect circular hole is greater than the diameter of the column (52), and the difference between the diameter of the first perfect circular hole and the diameter of the column (52) is greater than or equal to 0.5 mm and less than or equal to 1.0 mm; and / or, The diameter of the second perfect circular hole is greater than the diameter of the rod body (65), and the difference between the diameter of the second perfect circular hole and the diameter of the rod body (65) is greater than or equal to 0.5 mm and less than or equal to 1.0 mm.

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