Paper clamping device and printing machine

Abstract

This invention provides a paper clamping device and a printing press. The paper clamping device is disposed on the tray of the printing press and is used to clamp and fix paper on the tray. The paper clamping device includes: a clamping component disposed on the tray for clamping the front side of the paper; a paper pressing component disposed on the tray for clamping the flipped-out pages of the paper; and a linkage component connected to the clamping component and the paper pressing component respectively, so that the clamping component can open and close with the opening and closing of the paper pressing component. The paper clamping device provided by this invention can simultaneously clamp the front side and the flipped-out pages of the paper, and simultaneously separate from the front side and the flipped-out pages of the paper, thereby facilitating the stamping of multi-page documents.

Description

Technical Field

[0001] This invention relates to the field of office automation technology, specifically to a paper clamping device and a printing press. Background Technology

[0002] In daily management, the traditional method of seal management involves assigning specific personnel to be responsible for the use and maintenance of seals. This method is not only inefficient and costly, but also struggles to prevent violations of seal management regulations and actions against the will of the parties involved. Such violations often result in significant losses for the company or organization. To address these issues, automated seal-applying machines are attracting increasing attention.

[0003] Currently, printing presses use trays to carry paper documents and move them inside or out of the press. To prevent the paper from shifting during movement, paper clips are usually installed on the trays. However, current paper clips can only hold single-sided paper, and cannot hold open pages of multi-page documents such as books, causing inconvenience for stamping. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art, and proposes a paper clamping device and a printing machine that can simultaneously clamp the front and open pages of a paper, and simultaneously separate from the front and open pages of the paper, thereby facilitating the stamping of multi-page paper.

[0005] To achieve the above objectives, the present invention provides a paper clamping device, disposed on a tray of a printing press, for clamping and fixing paper pieces on the tray. The paper clamping device includes:

[0006] A clamping assembly, disposed on the tray, is used to clamp the front side of the paper;

[0007] A paper-pressing component, disposed on the tray, is used to clamp the unfolded pages of the paper; and

[0008] A linkage component is connected to the clamping component and the paper pressing component respectively, so that the clamping component can open and close as the paper pressing component opens and closes.

[0009] Optionally, the clamping assembly includes:

[0010] A rotating shaft is disposed on the tray and located outside the first side edge of the paper;

[0011] A paper clip is mounted on the rotating shaft and is rotatable about the rotating shaft so as to be able to open and close relative to the tray.

[0012] Optionally, the linkage component includes a telescopic component and an elastic component, wherein,

[0013] The telescopic component is rotatably connected to the paper clamp and the paper pressing component, and the telescopic component is elastically extendable and retractable in the direction of movement of the tray. The telescopic component is configured to generate elastic compression when the paper pressing component is subjected to an external force that causes it to rotate open, and drive the paper clamp to rotate synchronously. When the external force is released, the telescopic component causes the paper pressing component to automatically return to the closed position.

[0014] The elastic component is connected to the paper clamp and is used to apply an elastic force to the paper clamp so that the paper clamp automatically returns to the closed position.

[0015] Optionally, the telescopic component includes a first link, a second link, and a compression spring, wherein,

[0016] One end of the first connecting rod is rotatably connected to the paper clamp, and the other end has a connecting hole.

[0017] One end of the second connecting rod is rotatably connected to the paper pressing component, and the other end is provided with a connecting rod, which is telescopically inserted into the connecting hole;

[0018] The compression spring is sleeved on the connecting rod and is located between the two opposite end faces of the first and second connecting rods.

[0019] Optionally, a positioning groove is provided on the tray, the telescopic component is located in the positioning groove, and the paper pressing component has an extension that extends into the groove and is rotatably connected to the telescopic component.

[0020] Optionally, there are two positioning grooves, which are spaced apart in a direction perpendicular to the movement of the tray; and there are two telescopic components, which are respectively disposed in the two positioning grooves; the paper pressing component is provided with two extensions, which extend into the two positioning grooves respectively, and are rotatably connected to the two telescopic components respectively.

[0021] Optionally, the elastic component includes a tension spring, which is connected to the paper clip and the tray respectively, and is configured to generate a tensile deformation when the paper clip is opened, so that the paper clip can automatically return to the closed position.

[0022] Optionally, the paper pressing component is a frame formed by bending a strip rod.

[0023] Optionally, an anti-pressure component is provided on the frame to protect the paper when the frame holds the opened page of the paper.

[0024] Optionally, the paper clamping device further includes a tension spring, which is connected to the paper clamp and the tray respectively, and is configured to generate a tensile deformation when the paper clamp is opened, so that the paper clamp can automatically return to the closed position.

[0025] As another technical solution, the present invention also provides a printing machine, including a tray for carrying paper, and a paper clamping device for clamping and fixing the paper is provided on the tray, wherein the paper clamping device is the paper clamping device provided by the present invention.

[0026] The beneficial effects of this invention are:

[0027] The paper clamping device provided by this invention uses a clamping component to clamp the front side of a paper piece, a paper pressing component to clamp the flipped-out pages of the paper piece, and a linkage component to enable the clamping component to open and close along with the paper pressing component. This allows for simultaneous clamping of both the front side and flipped-out pages of the paper piece, as well as simultaneous separation from both, thus facilitating the stamping of multi-page paper pieces.

[0028] The printing press provided by this invention, by employing the paper clamping device described above, can simultaneously clamp the front and open pages of a paper document, and simultaneously separate them from the front and open pages of the paper document, thereby facilitating the stamping of multi-page paper documents. Attached Figure Description

[0029] Figure 1 This is a top view of the paper clamping device provided in an embodiment of the present invention;

[0030] Figure 2 This is a structural diagram of the paper clamping device provided in an embodiment of the present invention when closed;

[0031] Figure 3 This is a structural diagram of the paper clamping device provided in an embodiment of the present invention when it is opened;

[0032] Figure 4 This is a structural diagram of the compression component used in an embodiment of the present invention. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the paper clamping device and printing machine provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Please see Figure 1The paper clamping device 3 provided in this embodiment of the invention is disposed on the tray 1 of a printing machine and is used to clamp and fix the paper piece 2 on the tray 1. The paper clamping device 3 includes a clamping assembly 31, a paper pressing component 32, and a linkage assembly 33. The clamping assembly 31 is disposed on the tray 1 and is used to clamp the front side of the paper piece 2, i.e., the unflipped front page. The paper pressing component 32 is disposed on the tray 1 and is used to clamp the flipped-out page of the paper piece 2, i.e., the flipped-out back page. The linkage assembly 33 is connected to both the clamping assembly 31 and the paper pressing component 32, so that the clamping assembly 31 can open and close along with the opening and closing of the paper pressing component 32.

[0035] When the paper-pressing component 32 clamps or separates from the open page of the paper 2, the clamping component 31 and the paper-pressing component 32 move synchronously under the action of the linkage component 33. In this way, it is possible to simultaneously clamp the front and open pages of the paper 2, as well as simultaneously separate from the front and open pages of the paper 2, thereby making it more convenient to stamp multi-page paper documents.

[0036] In practical applications, the opening and closing of the paper pressing component 32 can be controlled manually, or the opening and closing of the paper pressing component 32 can be controlled automatically by a drive device.

[0037] The clamping component 31 can be clamped in various ways. For example, please refer to [link / reference needed]. Figures 1 to 3 In this embodiment, the clamping assembly 31 includes a rotating shaft 314 and a paper clamp 311. The rotating shaft 314 is mounted on the tray 1 via a fixing member (not shown in the figure) and is located outside the first side of the paper piece 2. For books, the first side is usually the binding side, while for loose pages, the first side can be any side of the paper piece.

[0038] Optionally, the first side edge of the paper piece 2 is positioned along the Y direction, which is opposite to the moving direction of the pallet 1 (i.e., Figure 1 The X-direction shown in the figure is perpendicular to each other. Of course, in practical applications, the direction of the first side of the paper 2 can be selected according to specific needs.

[0039] The paper clip 311 is mounted on the rotating shaft 314 via an integrally formed connector 313, and the connector 313 can rotate around the rotating shaft 314 to drive the paper clip 311 to open and close relative to the tray 1, thereby enabling the paper clip 311 to clamp or separate from the paper 2.

[0040] In this embodiment, the linkage component 33 includes a telescopic component 331, which is rotatably connected to the paper clamp 311 and the paper pressing component 32, respectively, and the telescopic component 331 is in the moving direction of the tray 1 (i.e., Figure 1The paper clamp 31 is elastically extendable in the X direction shown in the figure, and the telescopic component 331 is configured to generate elastic compression when the paper clamp 32 is subjected to an external force that causes it to rotate open, and drive the paper clamp 311 to rotate synchronously; when the external force is released, the paper clamp 32 can be automatically reset to the closed position under the action of the telescopic component 331.

[0041] The telescopic component 331 can have various structures. For example, such as... Figure 4 As shown, the telescopic component 331 includes a first connecting rod 331a, a second connecting rod 331b, and a compression spring 332. One end of the first connecting rod 331a is rotatably connected to the connecting member 313 via an eccentric shaft 312, and the other end has a connecting hole. One end of the second connecting rod 331b is rotatably connected to the paper pressing component 32, and the other end has a connecting rod 331c. The connecting rod 331c is telescopically inserted into the connecting hole, meaning it can move relative to the connecting hole. The compression spring 332 is sleeved on the connecting rod 331c and located between the two opposite end faces of the first connecting rod 331a and the second connecting rod 331b. The compression spring 332 is used to apply a spring force to the first connecting rod 331a and the second connecting rod 331b when the external force on the paper pressing component 32 is released, causing them to move away from each other, thereby restoring the paper pressing component 32 to its closed state.

[0042] Furthermore, the linkage assembly also includes an elastic component connected to the paper clamp 311, which applies a spring force to the paper clamp 311 to automatically return it to the closed position. Specifically, in this embodiment, the elastic component includes a tension spring 4, one end of which is connected to the paper clamp 311 via a connector 313, and the other end is fixedly connected to the tray 1. The tension spring 4 is configured to generate tensile deformation when the paper clamp 311 is opened, so that it can automatically return to the closed position when the paper clamp 311 is closed.

[0043] In this embodiment, a positioning groove 11 is also provided on the tray 1, and a protrusion 12 is provided in the positioning groove 11; the aforementioned telescopic member 331 is located in the positioning groove 11, and the paper pressing member 32 has an extension 32a, which extends into the positioning groove 11 and is rotatably connected to the telescopic member 331. Additionally, a tension spring 4 is located in the positioning groove 11 and is arranged along the X direction; one end of the tension spring 4 is connected to the paper clamp 311 via a connector 313, and the other end is fixedly connected to the protrusion 12. When the paper pressing member 32 is opened, it drives the telescopic member 331 along... Figure 2 The X-direction moves to the right, thereby causing the connector 313 and the paper clip 311 to rotate and open around the rotation axis 314.

[0044] In this embodiment, in order to improve structural stability and ensure that the paper clamp 311 can be subjected to uniform force, there are two positioning grooves 11, which are spaced apart in the direction of movement (i.e., the X direction) perpendicular to the pallet 1; and there are two telescopic components 331, which are respectively disposed in the two positioning grooves 11; the paper pressing component 32 is provided with two extensions, which extend into the two positioning grooves 11 respectively, and are rotatably connected to the two telescopic components 331 respectively.

[0045] The paper-pressing component 32 can have various structures. For example, in this embodiment, the paper-pressing component 32 is a frame formed by bending a strip rod. This allows it to both press down the edges of the opened page and expose the inner text, thus meeting the needs of stamping. Optionally, an anti-pressure component (not shown in the figure) can be provided on the frame to protect the paper when the frame holds the opened page.

[0046] Furthermore, in this embodiment, the aforementioned extension 32a is also formed by bending a strip rod. Specifically, the paper pressing component 32 is formed by bending a strip rod into a rectangular frame. One of the long axes of this rectangular frame is parallel to the Y direction, and the two ends of the strip rod are located on the other long axis. These extensions are rotatably connected to two telescopic components 331 in the positioning groove 11 via two extensions 32a. The extensions 32a bend and extend from the ends of the strip rod into the positioning groove 11, forming a crank-like structure. When the rectangular frame is rotated open, the axis of rotation of the rectangular frame is the long axis where the two ends of the strip rod are located, and the extensions 32a, with their crank-like structure, drive the telescopic components 331 to move in the X direction.

[0047] In summary, the paper clamping device provided in this embodiment of the invention uses a clamping component to clamp the front side of a paper piece, a paper pressing component to clamp the flipped-out pages of the paper piece, and a linkage component to enable the clamping component to open and close along with the paper pressing component. This allows for simultaneous clamping of both the front side and flipped-out pages of the paper piece, as well as simultaneous separation from both, thus facilitating the stamping of multi-page paper pieces.

[0048] As another technical solution, this embodiment of the invention also provides a printing machine, including a tray for carrying paper, and a paper clamping device for clamping and fixing the paper is provided on the tray. The paper clamping device adopts the paper clamping device provided in this embodiment of the invention.

[0049] The stamping machine provided in this embodiment of the invention, by employing the paper clamping device described above, can simultaneously clamp the front and open pages of a paper document, and simultaneously separate them from the front and open pages of the paper document, thereby facilitating the stamping of multi-page paper documents.

[0050] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A paper clamping device, disposed on a tray of a printing press, for clamping and fixing paper pieces on the tray, characterized in that, The paper clamping device includes: A clamping assembly, disposed on the tray, is used to clamp the front side of the paper; A paper-pressing component, disposed on the tray, is used to clamp the unfolded pages of the paper; and A linkage component is connected to both the clamping component and the paper pressing component, enabling the clamping component to open and close in conjunction with the opening and closing of the paper pressing component; the clamping component includes: A rotating shaft is disposed on the tray and located outside the first side edge of the paper; A paper clip is mounted on the rotating shaft and is rotatable about the rotating shaft so as to be able to open and close relative to the tray; The linkage component includes a telescopic component and an elastic component, wherein... The telescopic component is rotatably connected to the paper clamp and the paper pressing component, and the telescopic component is elastically extendable and retractable in the direction of movement of the tray. The telescopic component is configured to generate elastic compression when the paper pressing component is subjected to an external force that causes it to rotate open, and drive the paper clamp to rotate synchronously. When the external force is released, the telescopic component causes the paper pressing component to automatically return to the closed position. The elastic component is connected to the paper clamp and is used to apply an elastic force to the paper clamp so that the paper clamp can automatically return to the closed position; The paper pressing component is a rectangular frame formed by bending a strip rod.

2. The paper clamping device according to claim 1, characterized in that, The telescopic component includes a first link, a second link, and a compression spring, wherein, One end of the first connecting rod is rotatably connected to the paper clamp, and the other end has a connecting hole. One end of the second connecting rod is rotatably connected to the paper pressing component, and the other end is provided with a connecting rod, which is telescopically inserted into the connecting hole; The compression spring is sleeved on the connecting rod and is located between the two opposite end faces of the first and second connecting rods.

3. The paper clamping device according to claim 1, characterized in that, A positioning groove is provided on the tray, the telescopic component is located in the positioning groove, and the paper pressing component has an extension that extends into the positioning groove and is rotatably connected to the telescopic component.

4. The paper clamping device according to claim 3, characterized in that, There are two positioning grooves, which are spaced apart in a direction perpendicular to the movement of the tray; and there are two telescopic components, which are respectively disposed in the two positioning grooves; the paper pressing component is provided with two extensions, which extend into the two positioning grooves respectively, and are rotatably connected to the two telescopic components respectively.

5. The paper clamping device according to claim 1, characterized in that, The elastic component includes a tension spring, which is connected to the paper clip and the tray respectively, and is configured to generate a tensile deformation when the paper clip is opened, so that the paper clip can automatically return to the closed position.

6. The paper clamping device according to claim 1, characterized in that, An anti-pressure component is provided on the frame to protect the paper when the frame holds the opened page of the paper.

7. A printing press, comprising a tray for carrying paper, wherein a paper clamping device is provided on the tray for clamping and fixing the paper, characterized in that, The paper clamping device is the paper clamping device according to any one of claims 1-6.

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