Rivet head assembly of binding machine and binding machine

Abstract

The rivet head assembly comprises a rivet head, an electrode plate, a heating piece and a rivet head seat, the rivet head seat comprises a first seat body and a second seat body, the rivet head, the electrode plate and the heating piece are all installed on the first seat body, a spring is installed in the second seat body, and the rivet head, the electrode plate and the heating piece are installed on the rivet head seat. A lock catch is arranged on the second seat body, a buckling position matched with the lock catch is arranged on the first seat body, the lock catch is connected with the buckling position to enable the second seat body and the first seat body to be connected and locked, the lock catch is separated from the buckling position to enable the second seat body and the first seat body to be connected and unlocked, and the first seat body and the second seat body which are split are arranged. The first seat body and the second seat body are matched with the buckling positions through the lock catches to achieve assembling of the rivet head assembly, original fasteners are omitted, assembling is more labor-saving and simpler, and assembling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of office tools, and more specifically to a riveting head assembly of a binding machine and a binding machine. Background Art

[0002] At present, most of the binding of paper documents adopts the plastic hose binding method. The plastic hose binding method requires punching holes in the documents to be bound, threading plastic hoses into the punched holes, and then thermally riveting the two ends of the plastic hoses to finally complete the binding of the documents. Among them, the riveting head assembly is the core component for heating during the riveting of the binding machine. The heating of the riveting head assembly uses a PTC heating sheet as the heating element. Two electrode sheets responsible for conducting the positive and negative electrodes are respectively arranged at both ends of the PTC heating sheet. A riveting head is installed on the electrode sheet, and a riveting head seat for protecting the riveting head is sleeved on the upper end of the riveting head. The electrode sheet is connected to the power supply by a wire. When the electrode sheet is energized, the heating sheet can generate heat, and the heat is transferred to the riveting head to achieve the purpose of heating the riveting head. For example, the Chinese invention patent with the publication number: CN110576689A discloses a constant-temperature heating riveting head for an automatic binding machine, including a riveting head, a ceramic heating sheet, an insulating seat and a housing. The center of the riveting head has a riveting hole. The bottom of the riveting head is connected to the insulating seat. The housing is sleeved outside the riveting head. The ceramic heating sheet is sleeved outside the riveting head. The ceramic heating sheet is arranged between the riveting head and the housing. The upper and lower ends of the ceramic heating sheet have electrodes with opposite electricities. An insulating paper is arranged between the top of the ceramic heating sheet and the riveting head. The upper and lower ends of the ceramic heating sheet are respectively connected to copper electrodes with opposite electricities. A heat insulation sheet is arranged at the bottom of the ceramic heating sheet. The heat insulation sheet is sleeved outside the riveting head. A spring is arranged below the heat insulation sheet. The spring is used to fasten the heat insulation sheet and the ceramic heating sheet to the riveting head. In this technical solution, the spring, the heat insulation sheet, the ceramic heating sheet, the copper electrode and the riveting head need to be installed in the housing first, and the riveting head is fixed on the housing by a set screw. The spring is in a compressed state under force in the housing, making it difficult to place the ceramic heating sheet in a suitable position. And when the riveting head is placed at the top, after an operator fixes one set screw, if the hand is released at this time, the riveting head will be bounced off due to the spring force, and the second set screw cannot be assembled, resulting in the problem that the assembly of the riveting head is time-consuming and laborious. For example, the Chinese utility model patent with the publication number: CN220349371U discloses a heating riveting head and a binding machine for a binding machine. The heating riveting head includes a riveting head, a first electrode sheet, a PTC heating element, a second electrode sheet and a heat insulation seat. The heat insulation seat is provided with a first installation groove. The first electrode sheet, the PTC heating element and the second electrode sheet are sequentially installed in the first installation groove. The bottom of the riveting head is connected to the heat insulation seat to cover the first installation groove. The heat insulation seat is provided with a second installation groove communicating with the first installation groove. A spring is installed in the second installation groove. One end of the spring is connected to the first electrode sheet, and the other end of the spring is connected to a spring seat. The spring seat is connected to the heat insulation seat to cover the second installation groove. This technical solution changes the assembly structure and assembly sequence, and the spring and the spring seat are installed last during assembly, without worrying about the spring pushing the riveting head away. However, the existing riveting head assemblies all need to be fixed by fasteners such as set screws or bolts, and the actual assembly is still relatively cumbersome and laborious. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a riveting head assembly for a binding machine and a binding machine. The riveting head seat of the riveting head assembly is provided with a split first seat body and a second seat body. The first seat body and the second seat body are matched through a lock and a buckle position to realize the assembly of the riveting head assembly. The original fasteners are cancelled, the assembly is more labor-saving and simple, and the assembly efficiency is improved.

[0004] This application provides a riveting head assembly for a binding machine, including a riveting head, an electrode sheet, a heating sheet and a riveting head seat. The riveting head seat includes a first seat body and a second seat body. The riveting head, the electrode sheet and the heating sheet are all installed on the first seat body. A spring is installed in the second seat body. A lock is provided on the second seat body. A buckle position adapted to the lock is provided on the first seat body. The lock is connected to the buckle position to lock the second seat body and the first seat body. The lock is disengaged from the buckle position to unlock the connection between the second seat body and the first seat body.

[0005] In this technical solution, the riveting head seat is composed of a split first seat body and a second seat body. The riveting head, the electrode sheet and the heating sheet are installed through the first seat body. Both ends of the heating sheet are equipped with electrode sheets, and the two electrode sheets have opposite electricities. The heating sheet and the two electrode sheets form a heating assembly. The spring is installed through the second seat body. After the first seat body and the second seat body are connected, the spring acts on the heating assembly to connect the heating assembly and the riveting head. The heat generated by the heating assembly can be transferred to the riveting head to achieve the effect of heating the riveting head. By providing a lock on the second seat body and a buckle position on the first seat body, the second seat body and the first seat body are locked by connecting the lock and the buckle position. The first seat body and the second seat body can still be connected and fixed without fasteners, and the second seat body and the first seat body are unlocked by disengaging the lock and the buckle position. The first seat body and the second seat body can be separated, and the riveting head, the electrode sheet, the heating sheet and the spring can all be taken out to meet more usage requirements. The original fasteners of the riveting head assembly in this solution are cancelled, making the assembly more labor-saving and simple, and improving the disassembly and assembly efficiency of the riveting head assembly.

[0006] As an improvement, this application can provide a specific structure of the lock and the buckle position. Among them, the lock is a buckle structure provided on the second seat body, and the buckle position is a strip-shaped groove structure provided on the outer wall of the first seat body. The lock and the buckle position are connected or disengaged by rotation. In this technical solution, the lock is set as a buckle structure and the buckle position is set as a strip-shaped groove structure, so that the connection between the first seat body and the second seat body can be locked or unlocked by making the lock and the buckle position connected or disengaged through relative rotation. The buckle structure and the strip-shaped groove structure are simple and ingeniously designed, with reliable cooperation and more labor-saving and simple assembly.

[0007] As an improvement, the present application can also provide a specific structure of a locking buckle and a buckling position. Among them, the locking buckle is a strip-shaped groove structure provided on the outer wall of the second seat body, and the buckling position is a buckle structure provided on the first seat body. The locking buckle and the buckling position are connected or disengaged by rotation. In this technical solution, the locking buckle is set as a strip-shaped groove structure and the buckling position is set as a buckle structure, so that the first seat body and the second seat body can be connected or disengaged by relative rotation, thereby realizing the locking or unlocking of the first seat body and the second seat body. The buckle structure and the strip-shaped groove structure are simple and ingeniously designed, with reliable cooperation and more labor-saving and simple assembly.

[0008] As an improvement, the strip-shaped groove structure is provided with an opening adapted to the buckle structure, and the buckle structure passes through the opening and is inserted into the strip-shaped groove structure. In this technical solution, an opening is provided on the strip-shaped groove structure, that is, an opening connected to the strip-shaped groove structure is provided on the outer wall of the first seat body or the outer wall of the second seat body. This opening is used for the buckle structure to pass through. When the first seat body and the second seat body are connected, the buckle structure passes through the opening and is inserted into the strip-shaped groove structure, and then the first seat body and the second seat body are rotated relatively to connect the locking buckle and the buckling position, thereby realizing the locking of the first seat body and the second seat body. The assembly structure is more simple and labor-saving, and the disassembly and assembly efficiency is improved.

[0009] As an improvement, the present application can provide a specific structure of a first seat body. Among them, the first seat body includes a first part and a second part. The first part and the second part are of a split structure, and both the first part and the second part are laterally connected with rivet heads. In this technical solution, it is set that the first seat body is composed of a split first part and a second part. The first part and the second part are laterally connected with rivet heads to realize the installation and limitation of the rivet heads, canceling the original fasteners, making the assembly more labor-saving and simple.

[0010] As an improvement, the first part is provided with a first groove adapted to the rivet head, and the second part is provided with a second groove adapted to the rivet head. The first groove and the second groove cooperate to install and limit the rivet head. In this technical solution, by providing a first groove in the first part and a second groove in the second part, the first part is laterally connected to one side of the rivet head through the first groove, and the second part is laterally connected to the other side of the rivet head through the second groove. The first groove and the second groove cooperate to install and limit the rivet head, so that the connection and fixation of the rivet head and the first mounting seat do not need to be realized through fasteners, making the assembly more labor-saving and simple.

[0011] As an improvement, the present application can provide another specific structure of the first seat body. Among them, the first seat body is of an integral structure, and the rivet head and the first seat body are connected by fasteners. In this technical solution, it is set that the first seat body is of an integral structure, and the rivet head is installed on the first seat body through fasteners, and the installation stability is better.

[0012] As an improvement, the electrode plate is connected with an electrode lead. The outer wall of the first seat body is provided with a first recess for accommodating the electrode lead, and the outer wall of the second seat body is provided with a second recess for accommodating the electrode lead. In this technical solution, the electrode plate is connected with the electrode lead. The electrode plate passes through the riveting head seat through the electrode lead to connect to the power supply. When the electrode plate is electrified, the heating sheet can generate heat, and the heat is transferred to the riveting head, so as to achieve the purpose of heating the riveting head. By providing the first recess on the outer wall of the first seat body and the second recess on the outer wall of the second seat body, the first recess and the second recess cooperate to accommodate the electrode lead, so that the riveting head seat can avoid the electrode lead and prevent interference with the connection of the electrode lead to the power supply, and the adaptability is better.

[0013] As an improvement, the second seat body is provided with a limiting post adapted to the spring, and the spring is sleeved on the limiting post. In this technical solution, by providing a limiting post on the second seat body to sleeved the spring, when the second seat body and the first seat body are covered and connected, the spring can be prevented from being compressed and displaced, improving the assembly reliability and assembly efficiency.

[0014] The present application can also provide a binding machine, including the riveting head assembly of any one of the foregoing binding machines. In this technical solution, the riveting head seat of the riveting head assembly is provided with a split first seat body and a second seat body. The first seat body and the second seat body are assembled through the cooperation of a lock and a buckle position, canceling the original fasteners, making the assembly more labor-saving and simple, and improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the riveting head assembly in Embodiment 1 to Embodiment 4 of the present application.

[0016] Figure 2 For the present application Figure 1 An exploded view of the shown structure.

[0017] Figure 3 It is a three-dimensional structure schematic diagram of the riveting head assembly in Embodiment 1 to Embodiment 3 and Embodiment 5 of the present application.

[0018] Figure 4 For the present application Figure 3 An exploded view of the shown structure.

[0019] As shown in the figure: 1. Riveting head; 2. Electrode plate; 21. Electrode lead; 3. Heating sheet; 4. First seat body; 41. Strip-shaped groove structure; 411. Opening; 42. First part; 421. First embedding groove; 43. Second part; 431. Second embedding groove; 44. First recess; 5. Second seat body; 51. Buckle structure; 52. Second recess; 53. Limiting post; 6. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To better understand the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application and do not limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0021] In the accompanying drawings, for ease of illustration, the thickness, dimensions, and shape of the objects have been slightly exaggerated. The drawings are only examples and are not drawn to an exact scale.

[0022] It should also be understood that the terms "comprising", "including", "having", "containing", "including", when used in this specification, mean the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or combinations thereof. The terms "first", "second", etc. are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and do not indicate or imply the relative importance and quantity of the indicated devices, elements, or components. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0023] In addition, it should be noted that: the terms "installed", "set", "provided with", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements, or components; it can be directly set on another component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are only for the purpose of illustration. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] Embodiment 1

[0025] As Figures 1 to 4As shown in the figure, this embodiment discloses a riveting head assembly of a binding machine, which includes a riveting head 1, electrode plates 2, a heating sheet 3 and a riveting head seat. The riveting head seat includes a first seat body 4 and a second seat body 5. The riveting head 1, the electrode plates 2 and the heating sheet 3 are all installed on the first seat body 4. A spring 6 is installed in the second seat body 5. The riveting head seat is composed of the split first seat body 4 and the second seat body 5. The riveting head 1, the electrode plates 2 and the heating sheet 3 are installed through the first seat body 4. Both ends of the heating sheet 3 are equipped with electrode plates 2, and the two electrode plates 2 have opposite electricities. The heating sheet 3 and the two electrode plates 2 form a heating assembly. The spring 6 is installed through the second seat body 5. After the first seat body 4 and the second seat body 5 are connected, the spring 6 acts on the heating assembly, so that the heating assembly is connected to the riveting head 1, and the heat generated by the heating assembly can be transferred to the riveting head 1 to achieve the effect of heating the riveting head 1;

[0026] A lock is provided on the second seat body 5, and a buckle position adapted to the lock is provided on the first seat body 4. The connection of the lock and the buckle position locks the connection between the second seat body 5 and the first seat body 4, and the separation of the lock and the buckle position unlocks the connection between the second seat body 5 and the first seat body 4. By providing a lock on the second seat body 5 and a buckle position on the first seat body 4, the second seat body 5 and the first seat body 4 are locked by the connection of the lock and the buckle position. The first seat body 4 and the second seat body 5 can still be connected and fixed without fasteners, and the second seat body 5 and the first seat body 4 are unlocked by the separation of the lock and the buckle position. The first seat body 4 and the second seat body 5 can be separated, and the riveting head 1, the electrode plates 2, the heating sheet 3 and the spring 6 can all be taken out to meet more usage requirements. The original fasteners of the riveting head assembly in this solution are cancelled, making the assembly more labor-saving and simple, and improving the disassembly and assembly efficiency of the riveting head assembly.

[0027] Embodiment Two

[0028] As Figures 1 to 4 shown in the figure, this embodiment provides a riveting head assembly of a binding machine based on Embodiment One, and its structure is the same as that of Embodiment One. Among them, the lock is a buckle structure 51 provided on the second seat body 5, and the buckle position is a strip groove structure 41 provided on the outer wall of the first seat body 4. The lock and the buckle position are connected or separated by rotation. By setting the lock as the buckle structure 51 and the buckle position as the strip groove structure 41, the connection between the first seat body 4 and the second seat body 5 can be locked or unlocked by relatively rotating the lock and the buckle position, so that the first seat body 4 and the second seat body 5 are locked or unlocked. The buckle structure 51 and the strip groove structure 41 are simple and ingeniously designed, with reliable cooperation and more labor-saving and simple assembly.

[0029] More specifically, the strip groove structure 41 is provided with an opening 411 adapted to the snap structure 51. The snap structure 51 passes through the opening 411 and is inserted into the strip groove structure 41. The opening 411 is provided on the strip groove structure 41, that is, an opening 411 connected to the strip groove structure 41 is provided on the outer wall of the first seat body 4 or the outer wall of the second seat body 5. This opening 411 is used for the snap structure 51 to pass through. When the first seat body 4 is connected to the second seat body 5, the snap structure 51 passes through the opening 411 and is inserted into the strip groove structure 41, and then the first seat body 4 and the second seat body 5 are relatively rotated so that the lock and the buckle position are connected, thereby realizing the locking of the first seat body 4 and the second seat body 5. The assembly structure is simpler and more labor-saving, and the disassembly and assembly efficiency is improved.

[0030] Embodiment Three

[0031] As Figures 1 to 4 shown, based on Embodiment One, this embodiment provides a riveting head assembly of a binding machine, and its structure is the same as that of Embodiment One. Among them, the lock is a strip groove structure 41 provided on the outer wall of the second seat body 5, and the buckle position is a snap structure 51 provided on the first seat body 4. The lock and the buckle position are connected or disengaged by rotation. Setting the lock as the strip groove structure 41 and the buckle position as the snap structure 51 enables the connection or disengagement of the lock and the buckle position by relative rotation of the first seat body 4 and the second seat body 5, thereby realizing the locking or unlocking of the first seat body 4 and the second seat body 5. The snap structure 51 and the strip groove structure 41 are simple and ingeniously designed, with reliable cooperation and more labor-saving and simple assembly.

[0032] More specifically, the strip groove structure 41 is provided with an opening 411 adapted to the snap structure 51. The snap structure 51 passes through the opening 411 and is inserted into the strip groove structure 41. The opening 411 is provided on the strip groove structure 41, that is, an opening 411 connected to the strip groove structure 41 is provided on the outer wall of the first seat body 4 or the outer wall of the second seat body 5. This opening 411 is used for the snap structure 51 to pass through. When the first seat body 4 is connected to the second seat body 5, the snap structure 51 passes through the opening 411 and is inserted into the strip groove structure 41, and then the first seat body 4 and the second seat body 5 are relatively rotated so that the lock and the buckle position are connected, thereby realizing the locking of the first seat body 4 and the second seat body 5. The assembly structure is simpler and more labor-saving, and the disassembly and assembly efficiency is improved.

[0033] Embodiment Four

[0034] As Figure 1 and Figure 2As shown, based on any one of Embodiments 1 to 3, this embodiment provides a riveting head assembly of a binding machine, the structure of which is the same as that of the cited embodiment. Among them, the first base body 4 includes a first part 42 and a second part 43. The first part 42 and the second part 43 are of a split structure. Both the first part 42 and the second part 43 are laterally connected to the riveting head 1. It is provided that the first base body 4 is composed of the split first part 42 and the second part 43. The first part 42 and the second part 43 are laterally connected to the riveting head 1 to achieve the installation and limitation of the riveting head 1, canceling the original fasteners and making the assembly more labor-saving and simple.

[0035] More specifically, the first part 42 is provided with a first groove 421 adapted to the riveting head 1, and the second part 43 is provided with a second groove 431 adapted to the riveting head 1. The first groove 421 and the second groove 431 cooperate to install and limit the riveting head 1. By providing the first groove 421 in the first part 42 and the second groove 431 in the second part 43, the first part 42 is laterally connected to one side of the riveting head 1 through the first groove 421, and the second part 43 is laterally connected to the other side of the riveting head 1 through the second groove 431. The first groove 421 and the second groove 431 cooperate to install and limit the riveting head 1, so that the connection and fixation of the riveting head 1 to the first mounting base do not need to be realized through fasteners, making the assembly more labor-saving and simple.

[0036] Embodiment 5

[0037] As Figure 3 and Figure 4 shown, based on any one of Embodiments 1 to 3, this embodiment provides a riveting head assembly of a binding machine, the structure of which is the same as that of the cited embodiment. Among them, the first base body 4 is of an integral structure, and the riveting head 1 is connected to the first base body 4 through fasteners. It is provided that the first base body 4 is of an integral structure, and the riveting head 1 is installed on the first base body 4 through fasteners, and the installation stability is better.

[0038] Embodiment 6

[0039] As Figures 1 to 4As shown in the figure, this embodiment provides a riveting head assembly of a binding machine based on any one of Embodiments 1 to 5. Its structure is the same as that of the cited embodiment. Among them, the electrode plate 2 is connected with an electrode lead 21. The outer wall of the first seat body 4 is provided with a first recess 44 for accommodating the electrode lead 21, and the outer wall of the second seat body 5 is provided with a second recess 52 for accommodating the electrode lead 21. The electrode plate 2 is connected with the electrode lead 21, and the electrode plate 2 passes through the riveting head seat by the electrode lead 21 to connect to the power supply. When the electrode plate 2 is energized, the heating sheet 3 can be heated, and the heat is transferred to the riveting head 1, so as to achieve the purpose of heating the riveting head 1. By providing the first recess 44 on the outer wall of the first seat body 4 and the second recess 52 on the outer wall of the second seat body 5, the first recess 44 and the second recess 52 cooperate to accommodate the electrode lead 21, so that the riveting head seat can avoid the electrode lead 21 and prevent interference with the connection of the electrode lead 21 to the power supply, with better adaptability.

[0040] More specifically, the second seat body 5 is provided with a limit post 53 adapted to the spring 6, and the spring 6 is sleeved on the limit post 53. By providing the limit post 53 on the second seat body 5 to sleeve the spring 6, when the second seat body 5 and the first seat body 4 are covered and connected, the spring 6 can be prevented from being compressed and displaced, improving the assembly reliability and assembly efficiency.

[0041] Embodiment 7

[0042] As Figures 1 to 4 shown in the figure, this embodiment provides a binding machine based on any one of Embodiments 1 to 6, including the riveting head assembly of a binding machine described in any one of Embodiments 1 to 6. The riveting head seat of the riveting head assembly is provided with a split first seat body 4 and a second seat body 5. The first seat body 4 and the second seat body 5 are assembled by the cooperation of a lock and a buckle position, canceling the original fasteners, making the assembly more labor-saving and simple, and improving the assembly efficiency.

[0043] This application is not limited to the above best implementation mode. Anyone can obtain other various forms of products under the inspiration of this application. However, no matter what changes are made in its shape or structure, as long as it has the same or similar technical solutions as this application, they all fall within the protection scope of this application.

Claims

1. A rivet head assembly for a binding machine, comprising a rivet head (1), an electrode sheet (2), a heating sheet (3) and a rivet head seat, characterized in that: The rivet head seat comprises a first seat body (4) and a second seat body (5); the rivet head (1), the electrode sheet (2) and the heating sheet (3) are all installed on the first seat body (4); a spring (6) is installed in the second seat body (5); a lock is provided on the second seat body (5); a buckle adapted to the lock is provided on the first seat body (4); the lock is connected to the buckle so that the second seat body (5) is connected and locked with the first seat body (4); the lock is disengaged from the buckle so that the second seat body (5) is connected and unlocked with the first seat body (4).

2. A rivet head assembly for a binding machine according to claim 1, characterized in that: The lock is a buckle structure (51) arranged on the second base body (5), and the buckle position is a strip groove structure (41) arranged on the outer wall of the first base body (4). The lock and the buckle position are connected or separated by rotation.

3. A rivet head assembly for a binding machine according to claim 1, characterized in that: The lock is a strip groove structure (41) arranged on the outer wall of the second base body (5), and the buckle position is a snap-on structure (51) arranged on the first base body (4). The lock and the buckle position are connected or disconnected by rotation.

4. A rivet head assembly for a binding machine according to claim 2 or 3, characterized in that: The strip groove structure (41) is provided with an opening (411) adapted to the buckle structure (51), and the buckle structure (51) passes through the opening (411) and is inserted into the strip groove structure (41).

5. A rivet head assembly for a binding machine according to claim 1, characterized in that: The first seat body (4) comprises a first part (42) and a second part (43), wherein the first part (42) and the second part (43) are split structures, and the first part (42) and the second part (43) are both laterally connected to the rivet head (1).

6. A rivet head assembly for a binding machine according to claim 5, characterized in that: The first part (42) is provided with a first embedding groove (421) adapted to the rivet head (1), and the second part (43) is provided with a second embedding groove (431) adapted to the rivet head (1), and the first embedding groove (421) and the second embedding groove (431) cooperate to install the limiting rivet head (1).

7. A rivet head assembly for a binding machine according to claim 4, characterized in that: The first seat body (4) is an integrated structure, and the rivet head (1) and the first seat body (4) are connected via a fastener.

8. A rivet head assembly for a binding machine according to claim 2 or 3, characterized in that: The electrode sheet (2) is connected to an electrode lead (21), the outer wall of the first base (4) is provided with a first recess (44) for accommodating the electrode lead (21), and the outer wall of the second base (5) is provided with a second recess (52) for accommodating the electrode lead (21).

9. A rivet head assembly for a binding machine according to claim 2 or 3, characterized in that: The second seat body (5) is provided with a limiting column (53) adapted to the spring (6), and the spring (6) is sleeved on the limiting column (53).

10. A binding machine, characterized in that: A rivet head assembly for a binding machine comprising any one of claims 1-9.

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