Paper pressing mechanism of binding machine

Abstract

The paper pressing mechanism of the binding machine comprises a paper pressing platform and a paper pressing plate, a first lifting mechanism and a second lifting mechanism are installed on the paper pressing platform, one end of the paper pressing plate is connected with the first lifting mechanism, and the other end of the paper pressing plate is connected with the second lifting mechanism. A linkage assembly is installed between the first lifting mechanism and the second lifting mechanism and connected with a driving device, and the driving device drives the first lifting mechanism and the second lifting mechanism to ascend and descend synchronously through the linkage assembly. The two ends of the paper pressing plate are connected with the first lifting mechanism and the second lifting mechanism correspondingly so that lifting adjustment can be achieved, the paper pressing plate can completely press paper files, the first lifting mechanism and the second lifting mechanism are linked through the linkage assembly, synchronous lifting can be achieved through one driving device, the size of the whole machine can be reduced, and the overall linkage performance can be improved.

Description

Technical Field

[0001] This application relates to the field of office supplies technology, and more specifically to a paper pressing mechanism for a binding machine. Background Technology

[0002] A binding machine is a device used to bind paper documents, invoices, and vouchers. A binding machine generally includes a punching mechanism and a riveting mechanism. The punching mechanism moves up and down to drill holes in the materials to be bound, creating a circular binding hole along the edge. The riveting mechanism inserts a rivet into this binding hole and heat-presses the upper and lower ends of the rivet to form a rivet head, thus achieving rivet binding. Whether punching or riveting, a binding machine requires a pressure plate to hold the paper documents in place and prevent shifting. However, current pressure plates are mostly operated and reset manually, which is inconvenient. To address the aforementioned issues, a utility model patent with authorization announcement number CN210706559U discloses a paper pressing table locking mechanism for a document binding machine. This mechanism includes a locking motor assembly that drives the paper pressing table to rise and fall, and a screw and nut mechanism that is connected to the locking motor assembly. The screw and nut mechanism includes a screw and a nut sleeved on the screw. The screw connects the paper pressing table and the worktable. When the motor is not rotating, it self-locks via a screw connection. When the motor rotates, it changes the distance between the paper pressing table and the worktable. In this technical solution, the motor drives the paper pressing table to rise, fall, and lock via the screw and nut mechanism. One end of the paper pressing table is connected to the screw and nut mechanism, and the other end is used to press the paper. However, this paper pressing table can only press a portion of the paper, failing to fully stabilize it, which can easily lead to paper bending and shifting, thus reducing the efficiency of punching and riveting. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a paper pressing mechanism for a binding machine. The pressing plate is connected to a first lifting mechanism and a second lifting mechanism at both ends to achieve lifting and adjustment. The pressing plate can completely press the paper document, improving the paper pressing efficiency. By setting a linkage component to link the first lifting mechanism and the second lifting mechanism, the first lifting mechanism and the second lifting mechanism can achieve synchronous lifting and lowering through a single drive device, which is beneficial to reduce the overall size of the machine and improve the overall linkage.

[0004] This application provides a paper pressing mechanism for a binding machine, including a paper pressing platform and a paper pressing plate. A first lifting mechanism and a second lifting mechanism are installed on the paper pressing platform. One end of the paper pressing plate is connected to the first lifting mechanism, and the other end of the paper pressing plate is connected to the second lifting mechanism. A linkage component is installed between the first lifting mechanism and the second lifting mechanism. The linkage component is connected to a driving device, and the driving device drives the first lifting mechanism and the second lifting mechanism to move up and down synchronously through the linkage component.

[0005] In this technical solution, a first lifting mechanism and a second lifting mechanism are installed on the paper pressing platform. The first and second lifting mechanisms are respectively connected to both ends of the pressing board. The lifting and lowering of the pressing board on the paper pressing platform is achieved through the cooperation of the first and second lifting mechanisms. Both ends of the pressing board can be used to press paper. The pressing board and the paper pressing platform can completely press the paper document, making it impossible for the paper document to shift. By setting up a linkage component and a drive device, both the first and second lifting mechanisms are connected to the linkage component. The drive device drives the linkage component to move. The linkage component enables the first and second lifting mechanisms to move in tandem, thereby achieving synchronous lifting. The first and second lifting mechanisms do not need to be connected to a separate drive device, resulting in better linkage and more stable and reliable lifting of the pressing board. The first and second lifting mechanisms can achieve synchronous lifting through a single drive device, making the structure more compact and saving a drive device, which is beneficial for reducing the overall size of the machine and reducing production costs.

[0006] As an improvement, the first lifting mechanism includes a first screw and a first nut sleeved on the first screw, the first nut being connected to one end of the pressure plate; the second lifting mechanism includes a second screw and a second nut sleeved on the second screw, the second nut being connected to the other end of the pressure plate; both the first screw and the second screw are connected to a linkage assembly. In this technical solution, the first lifting mechanism uses a first screw and a first nut to cooperate, the first screw rotating allows the first nut to rise and fall on the first screw, thus allowing one end of the pressure plate to rise and fall. Similarly, the second lifting mechanism uses a second screw and a second nut to cooperate, the second screw rotating allows the second nut to rise and fall on the second screw, thus allowing the other end of the pressure plate to rise and fall. Both the first screw and the second screw are connected to the linkage assembly, which allows the first screw and the second screw to rotate, thereby causing the first nut and the second nut to drive the pressure plate to rise and fall synchronously. The lifting structure is simple and reliable. Furthermore, the screw and nut cooperation structure has a self-locking function; when the first screw and the second screw stop rotating, both the first nut and the second nut can be locked in their current positions, eliminating the need for a separate locking mechanism, making the structure even simpler and more reliable.

[0007] As an improvement, the linkage component includes a first worm, a first worm wheel, and a second worm wheel. The first worm wheel is connected to a first lifting mechanism, and the second worm wheel is connected to a second lifting mechanism. Both the first and second worm wheels mesh with the first worm. In this technical solution, the linkage component is set as a worm gear structure. The first worm wheel is connected to the first lifting mechanism; more specifically, the first worm wheel is mounted on a first screw to drive the first screw to rotate synchronously. The second worm wheel is connected to the second lifting mechanism; more specifically, the second worm wheel is mounted on a second screw to drive the second screw to rotate synchronously. Since both the first and second worm wheels mesh with the first worm, the rotation of the first worm can drive the first and second worm wheels to rotate synchronously, thereby achieving synchronous lifting of the first and second lifting mechanisms. The linkage component is ingeniously designed, simple, and reliable.

[0008] As an improvement, the driving device is a motor, which is connected to the first worm gear to drive the first worm gear to rotate. In this technical solution, the driving device is a motor, which is connected to the end of the first worm gear to drive the first worm gear to rotate, so that the first lifting mechanism and the second lifting mechanism can lift and lower synchronously.

[0009] As an improvement, the first lifting mechanism includes a first mounting sleeve connected to the paper pressing platform, with the first screw and the first nut both located within the first mounting sleeve. The second lifting mechanism includes a second mounting sleeve connected to the paper pressing platform, with the second screw and the second nut both located within the second mounting sleeve. In this technical solution, the first lifting mechanism uses the first mounting sleeve to house the first screw and the first nut, preventing the accumulation of dust and other impurities on the first screw and the first nut, thereby extending the service life of the first lifting mechanism. Similarly, the second lifting mechanism uses the second mounting sleeve to house the second screw and the second nut, preventing the accumulation of dust and other impurities on the second screw and the second nut, thereby extending the service life of the second lifting mechanism.

[0010] As an improvement, the first mounting sleeve has a first opening, and one end of the pressure plate passes through the first opening into the first mounting sleeve to connect with the first nut. The second mounting sleeve has a second opening, and the other end of the pressure plate passes through the second opening into the second mounting sleeve to connect with the second nut. In this technical solution, the first mounting sleeve has a first opening for one end of the pressure plate to pass through, and the pressure plate passes through the first opening into the first mounting sleeve to connect with the first nut. The first screw is only partially exposed through the first opening, which not only improves aesthetics but also enhances dust prevention efficiency. Similarly, the second mounting sleeve has a second opening for the other end of the pressure plate to pass through, and the pressure plate passes through the second opening into the second mounting sleeve to connect with the second nut. The second screw is only partially exposed through the second opening, which not only improves aesthetics but also enhances dust prevention efficiency.

[0011] As an improvement, the first opening is located on the side of the first mounting sleeve opposite to the user side, so that the first mounting sleeve can conceal the first screw and the first nut on the user side. Similarly, the second opening is located on the side of the second mounting sleeve opposite to the user side, so that the second mounting sleeve can conceal the second screw and the second nut on the user side. In this technical solution, both the first and second mounting sleeves are mounted on a paper pressing platform. Both the first and second mounting sleeves have a user side (facing the user) and a side opposite to the user side (facing away from the user). By placing both the first and second openings on the side opposite to the user side, the exposed portions of the first and second screws are located on the side facing away from the user. This ensures that only the outer walls of the first and second mounting sleeves are visible on the user side, resulting in better aesthetics and higher dustproof efficiency.

[0012] As an improvement, one end of the pressing plate is provided with a first connector adapted to the first opening, and the first nut is installed on the first connector. The other end of the pressing plate is provided with a second connector adapted to the second opening, and the second nut is installed on the second connector. In this technical solution, one end of the pressing plate is connected to the first nut by the first connector, and the other end of the pressing plate is connected to the second nut by the second connector. The first connector can pass through the first opening and enter the first mounting sleeve, and the second connector can pass through the second opening and enter the second mounting sleeve. The overall fit is better, and the connection is simpler and more reliable. The first connector, the second connector, and the pressing plate can be an integral structure or a separate structure, preferably a separate structure, which is simpler and more efficient in production and installation.

[0013] As an improvement, the first connector is provided with a first clearance groove, which is used to avoid the side wall of the first mounting sleeve. The second connector is provided with a second clearance groove, which is used to avoid the side wall of the second mounting sleeve. In this technical solution, the first clearance groove is provided on the first connector. When the first connector passes through the first opening, it avoids the side wall of the first mounting sleeve through the first clearance groove, avoiding interference between the first connector and the side wall of the first mounting sleeve. This makes the overall assembly more compact and reliable. The first opening can be made smaller, improving the aesthetics and dustproof performance of the first mounting sleeve. Similarly, the second clearance groove is provided on the second connector. When the second connector passes through the second opening, it avoids the side wall of the second mounting sleeve through the second clearance groove, avoiding interference between the second connector and the side wall of the second mounting sleeve. This makes the overall assembly more compact and reliable. The second opening can be made smaller, improving the aesthetics and dustproof performance of the second mounting sleeve.

[0014] As an improvement, the first connector is provided with a first connecting part and a first mounting part. The first connecting part is connected to one end of the pressure plate, and the first mounting part is used to install a first nut. The first clearance groove is located between the first connecting part and the first mounting part. The second connector is provided with a second connecting part and a second mounting part. The second connecting part is connected to the other end of the pressure plate, and the second mounting part is used to install a second nut. The second clearance groove is located between the second connecting part and the second mounting part. In this technical solution, the first connector is connected to one end of the pressure plate via the first connecting part, and a first nut is installed via the first mounting part. The first nut drives the first connector to rise and fall via the first mounting part, thereby driving one end of the pressure plate to rise and fall. The first connecting part is located outside the first mounting sleeve, and the first mounting part is located inside the first mounting sleeve. A first clearance groove is set between the first connecting part and the first mounting part, thereby engaging the first connecting part and the first mounting part. The overall structural design is ingenious and compact. Similarly, the second connector is connected to the other end of the pressure plate via the second connecting part, and a second nut is installed via the second mounting part. The second nut drives the second connector to rise and fall via the second mounting part, thereby driving the other end of the pressure plate to rise and fall. The second connecting part is located outside the second mounting sleeve, and the second mounting part is located inside the second mounting sleeve. A second clearance groove is set between the second connecting part and the second mounting part, thereby engaging the second connecting part and the second mounting part. The overall structural design is ingenious and compact. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the paper pressing mechanism of a binding machine according to this application.

[0016] Figure 2 This is an exploded view of the paper pressing mechanism of a binding machine according to this application.

[0017] Figure 3 This is a partial structural diagram of the paper pressing mechanism of a binding machine according to this application.

[0018] Figure 4 This is a schematic diagram of the connection structure between the first lifting mechanism and the first connecting member / the second lifting mechanism and the second connecting member in this application.

[0019] Figure 5 This is a three-dimensional structural diagram of the first connector / second connector in this application.

[0020] The figure shows: 1. Paper pressing platform; 2. Paper pressing board; 21. First connector; 211. First clearance groove; 212. First connecting part; 213. First mounting part; 22. Second connector; 221. Second clearance groove; 222. Second connecting part; 223. Second mounting part; 3. First lifting mechanism; 31. First screw; 32. First nut; 33. First mounting sleeve; 331. First opening; 4. Second lifting mechanism; 41. Second screw; 42. Second nut; 43. Second mounting sleeve; 431. Second opening; 5. Linkage assembly; 51. First worm gear; 52. First worm wheel; 53. Second worm wheel; 6. Drive device. Detailed Implementation

[0021] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0022] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0023] It should also be understood that the terms "comprising," "including," "having," "containing," and "including," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. The terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (the specific types and constructions may be the same or different), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0024] Furthermore, it should be noted that the terms "installation," "setting," "equipped with," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components; they can refer to a direct installation on another component or the possible presence of another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Example 1

[0026] like Figures 1 to 5 As shown, this application discloses a paper pressing mechanism for a binding machine, including a paper pressing platform 1 and a paper pressing plate 2. A first lifting mechanism 3 and a second lifting mechanism 4 are installed on the paper pressing platform 1. One end of the paper pressing plate 2 is connected to the first lifting mechanism 3, and the other end of the paper pressing plate 2 is connected to the second lifting mechanism 4. The first lifting mechanism 3 and the second lifting mechanism 4 are installed on the paper pressing platform 1 and are respectively connected to the two ends of the paper pressing plate 2. The lifting and lowering of the paper pressing plate 2 on the paper pressing platform 1 is achieved through the cooperation of the first lifting mechanism 3 and the second lifting mechanism 4. Both ends of the paper pressing plate 2 can be used to press paper. The cooperation between the paper pressing plate 2 and the paper pressing platform 1 can completely press the paper document, so that the paper document cannot be moved.

[0027] A linkage component 5 is installed between the first lifting mechanism 3 and the second lifting mechanism 4. The linkage component 5 is connected to a drive device 6. The drive device 6 drives the first lifting mechanism 3 and the second lifting mechanism 4 to lift synchronously through the linkage component 5. By setting the linkage component 5 and the drive device 6, both the first lifting mechanism 3 and the second lifting mechanism 4 are connected to the linkage component 5. The drive device 6 drives the linkage component 5 to move. The linkage component 5 enables the first lifting mechanism 3 and the second lifting mechanism 4 to move in tandem and achieve synchronous lifting. The first lifting mechanism 3 and the second lifting mechanism 4 do not need to be connected to a separate drive device 6, resulting in better linkage and making the lifting of the pressure plate 2 more stable and reliable. The first lifting mechanism 3 and the second lifting mechanism 4 can achieve synchronous lifting through a single drive device 6, making the structure more compact and saving a drive device 6. This helps to reduce the overall size of the machine and lower production costs.

[0028] More specifically, such as Figure 2 and Figure 3 As shown, the first lifting mechanism 3 includes a first screw 31 and a first nut 32 sleeved on the first screw 31. The first nut 32 is connected to one end of the pressure plate 2. The first lifting mechanism 3, through the cooperation of the first screw 31 and the first nut 32, allows the first screw 31 to rotate, enabling the first nut 32 to rise and fall on the first screw 31, thereby allowing one end of the pressure plate 2 to rise and fall. The second lifting mechanism 4 includes a second screw 41 and a second nut 42 sleeved on the second screw 41. The second nut 42 is connected to the other end of the pressure plate 2. The second lifting mechanism 4, through the cooperation of the second screw 41 and the second nut 42, allows the second screw 41 to rise and fall. Rotation allows the second nut 42 to rise and fall on the second screw 41, thereby allowing the other end of the pressure plate 2 to rise and fall. The first screw 31 and the second screw 41 are both connected to the linkage component 5. Through the linkage component 5, the first screw 31 and the second screw 41 rotate, thereby causing the first nut 32 and the second nut 42 to drive the pressure plate 2 to rise and fall synchronously. The lifting structure is simple and reliable. On the other hand, the screw and nut cooperation structure has a self-locking function. When the first screw 31 and the second screw 41 stop rotating, the first nut 32 and the second nut 42 can be locked in the current position, eliminating the need to consider a separate locking mechanism, making the structure simpler and more reliable.

[0029] Example 2

[0030] like Figures 1 to 5 As shown, this embodiment discloses a paper-pressing mechanism for a binding machine based on Embodiment 1. Its structure is the same as in Embodiment 1. The linkage component 5 includes a first worm 51, a first worm wheel 52, and a second worm wheel 53. The first worm wheel 52 is connected to the first lifting mechanism 3, and the second worm wheel 53 is connected to the second lifting mechanism 4. Both the first worm wheel 52 and the second worm wheel 53 mesh with the first worm 51. The linkage component 5 is configured as a worm gear structure. More specifically, the first worm wheel 52 is mounted on the first screw 31 to drive the first screw 31 to rotate synchronously. The second worm wheel 53 is connected to the second lifting mechanism 4. More specifically, the second worm wheel 53 is mounted on the second screw 41 to drive the second screw 41 to rotate synchronously. Since both the first worm wheel 52 and the second worm wheel 53 mesh with the first worm 51, the rotation of the first worm 51 can drive the first worm wheel 52 and the second worm wheel 53 to rotate synchronously, thereby achieving synchronous lifting of the first lifting mechanism 3 and the second lifting mechanism 4. The linkage component 5 is ingeniously designed, simple, and reliable.

[0031] More specifically, such as Figure 2 and Figure 3As shown, the drive device 6 is a motor. The drive device 6 is connected to the first worm gear 51 to drive the first worm gear 51 to rotate. The drive device 6 is a motor. The motor is connected to the end of the first worm gear 51 so that it can drive the first worm gear 51 to rotate, so that the first lifting mechanism 3 and the second lifting mechanism 4 can lift and lower synchronously.

[0032] Example 3

[0033] like Figures 1 to 5 As shown, this embodiment discloses a paper pressing mechanism for a binding machine based on Embodiment 1 or Embodiment 2. Its structure is the same as that of Embodiment 1 or Embodiment 2. The first lifting mechanism 3 includes a first mounting sleeve 33 connected to the paper pressing platform 1. The first screw 31 and the first nut 32 are both located inside the first mounting sleeve 33. The first lifting mechanism 3 uses the first mounting sleeve 33 to mount the first screw 31 and the first nut 32. The first mounting sleeve 33 can prevent a large amount of dust and other impurities from accumulating on the first screw 31 and the first nut 32, thereby extending the service life of the first lifting mechanism 3. The second lifting mechanism 4 includes a second mounting sleeve 43 connected to the paper pressing platform 1. The second screw 41 and the second nut 42 are both located inside the second mounting sleeve 43. The second lifting mechanism 4 uses the second mounting sleeve 43 to mount the second screw 41 and the second nut 42. The second mounting sleeve 43 can prevent a large amount of dust and other impurities from accumulating on the second screw 41 and the second nut 42, thereby extending the service life of the second lifting mechanism 4.

[0034] More specifically, such as Figures 2 to 5 As shown, the first mounting sleeve 33 has a first opening 331. One end of the pressure plate 2 passes through the first opening 331 into the first mounting sleeve 33 to connect with the first nut 32. The second mounting sleeve 43 has a second opening 431. The other end of the pressure plate 2 passes through the second opening 431 into the second mounting sleeve 43 to connect with the second nut 42. The first mounting sleeve 33 has a first opening 331 for one end of the pressure plate 2 to pass through. The first end of the pressure plate 2 passes through the first opening 331 into the first mounting sleeve 33 to connect with the first nut 32. The first screw 31 is only partially exposed through the first opening 331, which not only improves aesthetics but also enhances dust prevention efficiency. Similarly, the second mounting sleeve 43 has a second opening 431 for the other end of the pressure plate 2 to pass through. The other end of the pressure plate 2 passes through the second opening 431 into the second mounting sleeve 43 to connect with the second nut 42. The second screw 41 is only partially exposed through the second opening 431, which not only improves aesthetics but also enhances dust prevention efficiency.

[0035] More specifically, such as Figures 2 to 5As shown, the first opening 331 is located on the side of the first mounting sleeve 33 opposite to the user side, so that the first mounting sleeve 33 hides the first screw 31 and the first nut 32 on the user side. The second opening 431 is located on the side of the second mounting sleeve 43 opposite to the user side, so that the second mounting sleeve 43 hides the second screw 41 and the second nut 42 on the user side. Both the first mounting sleeve 33 and the second mounting sleeve 43 are mounted on the paper pressing platform 1. Both the first mounting sleeve 33 and the second mounting sleeve 43 have a user side, i.e., the side facing the user, and both the first mounting sleeve 33 and the second mounting sleeve 43 have a side opposite to the user side, i.e., the side facing away from the user. By setting both the first opening 331 and the second opening 431 on the side opposite to the user side, the exposed parts of the first screw 31 and the second screw 41 are all located on the side facing away from the user, so that only the outer walls of the first mounting sleeve 33 and the second mounting sleeve 43 can be seen on the user side, which not only improves aesthetics but also enhances dust prevention efficiency.

[0036] More specifically, such as Figures 2 to 5 As shown, one end of the pressing plate 2 is provided with a first connector 21 adapted to the first opening 331, and a first nut 32 is installed on the first connector 21. The other end of the pressing plate 2 is provided with a second connector 22 adapted to the second opening 431, and a second nut 42 is installed on the second connector 22. One end of the pressing plate 2 is connected to the first nut 32 by the first connector 21, and the other end of the pressing plate 2 is connected to the second nut 42 by the second connector 22. The first connector 21 can pass through the first opening 331 and enter the first mounting sleeve 33, and the second connector 22 can pass through the second opening 431 and enter the second mounting sleeve 43. The overall fit is better, and the connection is simpler and more reliable. The first connector 21, the second connector 22 and the pressing plate 2 can be an integral structure or a separate structure, preferably a separate structure, which is simpler and more efficient in production and installation.

[0037] Example 4

[0038] like Figures 1 to 5As shown, this embodiment discloses a paper-pressing mechanism for a binding machine based on Embodiment 3. Its structure is the same as Embodiment 3. The first connecting member 21 is provided with a first clearance groove 211, which is used to avoid the side wall of the first mounting sleeve 33. With the first clearance groove 211 on the first connecting member 21, when the first connecting member 21 passes through the first opening 331, it avoids the side wall of the first mounting sleeve 33 through the first clearance groove 211, preventing interference between the first connecting member 21 and the side wall of the first mounting sleeve 33. This makes the overall assembly more compact and reliable. The first opening 331 can... The smaller size improves the aesthetics and dustproofness of the first mounting sleeve 33; the second connector 22 is provided with a second clearance groove 221, which is used to avoid the side wall of the second mounting sleeve 43. When the second connector 22 passes through the second opening 431, it avoids the side wall of the second mounting sleeve 43 through the second clearance groove 221, thus avoiding interference between the second connector 22 and the side wall of the second mounting sleeve 43, thereby making the overall assembly more compact and reliable. The second opening 431 can be made smaller, improving the aesthetics and dustproofness of the second mounting sleeve 43.

[0039] More specifically, such as Figures 2 to 5 As shown, the first connector 21, the second connector 22, and the pressure plate 2 are separate structures. The first connector 21 is provided with a first connecting part 212 and a first mounting part 213. The first connecting part 212 is connected to one end of the pressure plate 2. The first mounting part 213 is used to install the first nut 32. The first clearance groove 211 is located between the first connecting part 212 and the first mounting part 213. The first connector 21 is connected to one end of the pressure plate 2 through the first connecting part 212 and the first nut 32 is installed through the first mounting part 213. The first nut 32 drives the first connector 21 to rise and fall through the first mounting part 213, thereby driving one end of the pressure plate 2 to rise and fall. The first connecting part 212 is located outside the first mounting sleeve 33 and the first mounting part 213 is located inside the first mounting sleeve 33. The first clearance groove 211 is set between the first connecting part 212 and the first mounting part 213, thereby connecting the first connecting part 212 and the first mounting part 213. The overall structure is ingeniously designed and compact.

[0040] like Figures 2 to 5As shown, the second connector 22 is provided with a second connecting part 222 and a second mounting part 223. The second connecting part 222 is connected to the other end of the pressure plate 2, and the second mounting part 223 is used to install the second nut 42. The second clearance groove 221 is located between the second connecting part 222 and the second mounting part 223. The second connector 22 is connected to the other end of the pressure plate 2 through the second connecting part 222, and the second nut 42 is installed through the second mounting part 223. The second nut 42 drives the second connector 22 to rise and fall through the second mounting part 223, thereby driving the other end of the pressure plate 2 to rise and fall. The second connecting part 222 is located outside the second mounting sleeve 43, and the second mounting part 223 is located inside the second mounting sleeve 43. The second clearance groove 221 is set between the second connecting part 222 and the second mounting part 223, thereby engaging the second connecting part 222 and the second mounting part 223. The overall structure is ingeniously designed and compact.

[0041] This application is not limited to the above-described preferred embodiments. Anyone can derive other products in various forms under the guidance of this application. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to that of this application falls within the protection scope of this application.

Claims

1. A paper pressing mechanism for a binding machine, comprising a paper pressing platform (1) and a paper pressing plate (2), characterized in that, The paper pressing platform (1) is equipped with a first lifting mechanism (3) and a second lifting mechanism (4). One end of the pressing board (2) is connected to the first lifting mechanism (3), and the other end of the pressing board (2) is connected to the second lifting mechanism (4). A linkage component (5) is installed between the first lifting mechanism (3) and the second lifting mechanism (4). The linkage component (5) is connected to a drive device (6). The drive device (6) drives the first lifting mechanism (3) and the second lifting mechanism (4) to lift synchronously through the linkage component (5).

2. The paper pressing mechanism of a binding machine according to claim 1, characterized in that, The first lifting mechanism (3) includes a first screw (31) and a first nut (32) sleeved on the first screw (31), the first nut (32) being connected to one end of the pressure plate (2); the second lifting mechanism (4) includes a second screw (41) and a second nut (42) sleeved on the second screw (41), the second nut (42) being connected to the other end of the pressure plate (2); both the first screw (31) and the second screw (41) are connected to the linkage assembly (5).

3. The paper pressing mechanism of a binding machine according to claim 1 or 2, characterized in that, The linkage component (5) includes a first worm (51), a first worm wheel (52), and a second worm wheel (53). The first worm wheel (52) is connected to the first lifting mechanism (3), and the second worm wheel (53) is connected to the second lifting mechanism (4). Both the first worm wheel (52) and the second worm wheel (53) are engaged with the first worm (51).

4. The paper pressing mechanism of a binding machine according to claim 3, characterized in that, The drive device (6) is a motor, and the drive device (6) is connected to the first worm (51) to drive the first worm (51) to rotate.

5. The paper pressing mechanism of a binding machine according to claim 2, characterized in that, The first lifting mechanism (3) includes a first mounting sleeve (33) connected to the paper pressing platform (1), and the first screw (31) and the first nut (32) are both located inside the first mounting sleeve (33). The second lifting mechanism (4) includes a second mounting sleeve (43) connected to the paper pressing platform (1), and the second screw (41) and the second nut (42) are both located inside the second mounting sleeve (43).

6. The paper pressing mechanism of a binding machine according to claim 5, characterized in that, The first mounting sleeve (33) is provided with a first opening (331). One end of the pressure plate (2) passes through the first opening (331) and enters the first mounting sleeve (33) to connect with the first nut (32). The second mounting sleeve (43) is provided with a second opening (431). The other end of the pressure plate (2) passes through the second opening (431) and enters the second mounting sleeve (43) to connect with the second nut (42).

7. The paper pressing mechanism of a binding machine according to claim 6, characterized in that, The first opening (331) is provided on the side opposite to the use side of the first mounting sleeve (33) so that the first mounting sleeve (33) hides the first screw (31) and the first nut (32) on the use side. The second opening (431) is provided on the side opposite to the use side of the second mounting sleeve (43) so that the second mounting sleeve (43) hides the second screw (41) and the second nut (42) on the use side.

8. The paper pressing mechanism of a binding machine according to claim 6, characterized in that, One end of the pressure plate (2) is provided with a first connector (21) adapted to the first opening (331), and the first nut (32) is installed on the first connector (21). The other end of the pressure plate (2) is provided with a second connector (22) adapted to the second opening (431), and the second nut (42) is installed on the second connector (22).

9. The paper pressing mechanism of a binding machine according to claim 8, characterized in that, The first connector (21) is provided with a first clearance groove (211), which is used to avoid the side wall of the first mounting sleeve (33). The second connector (22) is provided with a second clearance groove (221), which is used to avoid the side wall of the second mounting sleeve (43).

10. The paper pressing mechanism of a binding machine according to claim 9, characterized in that, The first connector (21) is provided with a first connecting part (212) and a first mounting part (213). The first connecting part (212) is connected to one end of the pressure plate (2). The first mounting part (213) is used to install the first nut (32). The first clearance groove (211) is located between the first connecting part (212) and the first mounting part (213). The second connector (22) is provided with a second connecting part (222) and a second mounting part (223). The second connecting part (222) is connected to the other end of the pressure plate (2). The second mounting part (223) is used to install the second nut (42). The second clearance groove (221) is located between the second connecting part (222) and the second mounting part (223).

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