A hot rivet head assembly for a binding machine

Abstract

This invention discloses a hot riveting head assembly for a binding machine, comprising an outer riveting shell (1), a dust cover (2), and a heating component (3). The dust cover (2) covers the open end of the outer riveting shell (1), forming a receiving cavity between the dust cover (2) and the outer riveting shell (1). The heating component (3) is installed inside the receiving cavity. A clamp (4) is provided inside the receiving cavity, clamping the heating component (3) from the outside. This hot riveting head assembly has a simple structure and is easy to assemble.

Description

Technical Field

[0001] This invention relates to the field of office equipment technology, and more specifically to a hot riveting head assembly for a binding machine. Background Technology

[0002] A binding machine is a machine that uses staples or hot melt adhesive to fix paper, plastic, leather, etc. Binding machines are categorized according to the binding method used. Common types on the market include hot melt binding machines, voucher binding machines, financial binding machines, hole punching binding machines, accounting voucher binding machines, comb-type rubber band binding machines, wire band binding machines, and strip binding machines, among others. Hot melt binding machines are popular due to their simple operation, high speed, low consumable costs, and attractive designs. Hot melt binding machines include a hole punching device, a tube cutting device, and a hot riveting device. The hot riveting head assembly is a component used for heating during the riveting process in a hot melt binding machine. It uses a PTC heating element, with two electrodes at each end of the PTC heating element to conduct positive and negative charges. A hot riveting head is mounted on the electrodes, and a protective sleeve is fitted over the top of the hot riveting head. Current hot riveting head assemblies have many parts, making assembly inconvenient. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a hot riveting head assembly for a binding machine, which has a simple structure and is easy to assemble.

[0004] The technical solution of the present invention is to provide a hot riveting head assembly for a binding machine having the following structure: an outer riveting shell and a heating assembly, wherein the heating assembly is installed in the receiving cavity of the outer riveting shell; a clamp is provided in the receiving cavity, and the clamp is clamped on the outside of the heating assembly.

[0005] With the above structure, the hot riveting head assembly for binding machines of the present invention has the following advantages compared with the prior art:

[0006] Since the hot riveting head assembly for binding machine of the present invention has a clamp in the accommodating cavity, and the clamp clamps the heating component, the assembly can be completed simply by assembling the heating component and the clamp. The structure is simple and the assembly is relatively convenient. The clamp can also firmly hold the heating component, which can make the heating component make better contact, and the hot riveting head assembly can work normally, thus extending the service life of the hot riveting head assembly.

[0007] As an improvement, a dust cover is also included, which covers the opening end of the outer riveted shell. With this structure, the dust cover has a dustproof effect.

[0008] As an improvement, the clamp includes a clamping body hinged to the inner wall of the outer riveted shell. The lower end of the clamping body has a support plate, and the upper end has an elastic plate. The support plate rests on the bottom of the heating assembly, and the elastic plate presses against the top of the heating assembly. With this structure, the clamp is simple; simply placing the heating assembly between the support plate and the elastic plate clamps it, making installation very convenient.

[0009] As an improvement, the heating assembly includes a rivet head seat with an open top and a rivet head sleeve. The rivet head sleeve covers the open end of the rivet head seat, forming a cavity between the rivet head sleeve and the rivet head seat. The cavity contains, from top to bottom, a heated rivet head, an insulating gasket, a first electrode plate, a heating plate, and a second electrode plate. With this structure, the heated rivet head and the first electrode plate are separated by the insulating gasket, effectively preventing leakage.

[0010] As an improvement, a positioning post is provided on the inner wall of the bottom of the rivet head seat. Through holes are provided in the middle of the hot riveting head, insulating sheet, first electrode sheet, heating sheet, and second electrode sheet. The hot riveting head, insulating sheet, first electrode sheet, heating sheet, and second electrode sheet are coaxially fitted onto the positioning post. With this structure, the internal structure of the heating assembly is simple and assembly is convenient.

[0011] As an improvement, a bushing is provided at the connection between the support plate and the clamping body, and a hinge shaft is provided inside the bushing. Both ends of the hinge shaft are connected to the inner wall of the outer rivet shell. With this structure, the clamping device is simple in structure and easy to assemble.

[0012] As an improvement, the upper end of the clamping body is provided with a limiting piece, one end of which is connected to the upper end of the clamping body, and the limiting piece blocks the upper side of the rivet head sleeve; the elastic piece is provided below the limiting piece, one end of which is connected to the other end of the limiting piece, and the elastic piece abuts against the upper surface of the rivet head sleeve. With this structure, the elastic piece can press the rivet head sleeve, resulting in better contact between the internal hot rivet head, insulating sheet, first electrode sheet, heating sheet, and second electrode sheet.

[0013] As an improvement, the shape of the connection between the clamping body and the limiting piece matches the shape of the outer wall of the upper end of the rivet head seat; the connection between the clamping body and the limiting piece rests against the outer side of the upper end of the rivet head seat. With this structure, the structure is more compact and the installation is more reliable.

[0014] As an improvement, a protrusion is provided on the inner wall of the bottom of the outer riveting shell. The protrusion is placed under the bottom wall of the rivet head seat, and the support piece is embedded between the protrusion and the bottom wall of the rivet head seat. With this structure, the protrusion provides support for the heating component, making assembly more reliable.

[0015] As an improvement, the minimum distance between the support plate and the inner wall of the bottom of the outer riveted shell is equal to the height of the protrusion. This structure results in a more reasonable structural design.

[0016] As an improvement, multiple grippers are provided, and the multiple grippers are evenly distributed within the accommodating cavity. This structure results in more stable assembly.

[0017] As an improvement, the lower surface of the dust cover is provided with an abutment ring, the lower end face of which abuts against the upper surface of the limiting piece. With this structure, the abutment ring limits the limiting piece of the clamp, making the installation more reliable. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the hot riveting head assembly for a binding machine according to the present invention.

[0019] Figure 2 This is a cross-sectional structural schematic diagram of the hot riveting head assembly for a binding machine according to the present invention.

[0020] Figure 3 This is an exploded structural diagram of the hot riveting head assembly for a binding machine according to the present invention.

[0021] Figure 4 This is a partial assembly structure diagram A of the hot riveting head assembly for the binding machine of the present invention.

[0022] Figure 5 This is a partial assembly structure diagram B of the hot riveting head assembly for the binding machine according to the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the outer riveting shell of the hot riveting head assembly for a binding machine according to the present invention.

[0024] Figure 7 This is an exploded view of the heating element of the hot riveting head assembly for a binding machine according to the present invention.

[0025] The figure shows: 1. Outer riveting shell, 101. Protrusion, 2. Dust cover, 201. Contact ring, 3. Heating assembly, 4. Clamp, 401. Clamping body, 402. Support plate, 403. Bushing, 404. Limiting plate, 405. Elastic plate, 5. Hinge shaft, 6. Rivet head seat, 601. Positioning post, 7. Rivet head sleeve, 8. Hot riveting head, 9. Insulating gasket, 10. First electrode plate, 11. Heating plate, 12. Second electrode plate. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] It should also be understood that the terms “comprising,” “including,” “having,” “containing,” “comprise,” and “containing”, when used in this specification, indicate the presence of the described 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.

[0029] like Figures 1 to 3 As shown, this application discloses a hot riveting head assembly for a binding machine, including an outer riveting shell 1, a dust cover 2, a heating component 3, and a clamp 4.

[0030] The outer riveting shell 1 is circular with an opening at the top. A protrusion 101, shaped like a frustum, is located on the inner wall of the bottom of the outer riveting shell 1, at the center of the inner wall. The clamping device 4 includes a clamping body 401, with a support plate 402 at its lower end. The support plate 402 is integrally formed with the clamping body 401. A bushing 403 is provided at the connection between the support plate 402 and the clamping body 401. A hinge shaft 5 is provided inside the bushing 403, with both ends of the hinge shaft 5 connected to the inner wall of the outer riveting shell 1. The clamping body 401 can rotate around the hinge shaft 5. The clamping body 401 has a limiting piece 404 at its upper end, one end of which is connected to the upper end of the clamping body. An elastic piece 405 is provided on the lower side of the limiting piece 404, one end of which is connected to the other end of the limiting piece 404. The limiting piece 404, the elastic piece 405, and the clamping body are integrally formed. The support piece 402 is perpendicular to the clamping body 401, and the limiting piece 404 is also perpendicular to the clamping body 401. Multiple clamps 4 are provided, and the multiple clamps 4 are evenly distributed within the outer riveting shell 1.

[0031] like Figures 4 to 7As shown, the heating assembly 3 includes a rivet head seat 6 with an open upper end and a rivet head sleeve 7. The rivet head sleeve 7 covers the open end of the rivet head seat 6, and a cavity is formed between the rivet head sleeve 7 and the rivet head seat 6. The cavity contains, from top to bottom, a hot rivet head 8, an insulating gasket 9, a first electrode plate 10, a heating plate 11, and a second electrode plate 12. A positioning post 601 is provided on the inner wall of the bottom of the rivet head seat 6. The hot rivet head 8, the insulating gasket, the first electrode plate 10, the heating plate 11, and the second electrode plate 12 are all provided with through holes in their middle parts. The hot rivet head 8, the insulating gasket, the first electrode plate 10, the heating plate 11, and the second electrode plate 12 are coaxially sleeved 403 and mounted on the outside of the positioning post 601.

[0032] The heating component 3 is installed inside the outer riveting shell 1 and clamped between the clamps 4. The rivet head seat 6 presses against the protrusion 101, and the support piece 402 of the clamp 4 is embedded between the protrusion 101 and the bottom wall of the rivet head seat 6. The minimum distance between the support piece 402 and the inner wall of the bottom of the outer riveting shell 1 is equal to the height of the protrusion 101. With this structure, the support piece 402 is approximately horizontal, providing stable support for the heating component 3. The limiting piece 404 blocks the upper side of the rivet head sleeve 7; the elastic piece 405 abuts against the upper surface of the rivet head sleeve 7. The shape of the connection between the clamping body 401 and the limiting piece 404 matches the shape of the outer wall of the upper end of the rivet head seat 6; the connection between the clamping body 401 and the limiting piece 404 rests against the outer side of the upper end of the rivet head seat 6.

[0033] The dust cover 2 covers the opening end of the outer riveting shell 1, and the dust cover 2 and the outer riveting shell 1 are tightly fitted together. The lower surface of the dust cover 2 is provided with an abutment ring 201, and the lower end face of the abutment ring 201 abuts against the upper surface of the limiting piece 404. The dust cover 2 has a through hole in its middle, and the upper end of the rivet head sleeve 7 passes through the through hole of the dust cover 2 and protrudes outside the dust cover 2.

Claims

1. A hot riveting head assembly for a binding machine, comprising an outer riveting shell (1) and a heating assembly (3), wherein the heating assembly (3) is installed within a receiving cavity of the outer riveting shell; characterized in that: The cavity is provided with a clamp (4), which clamps the heating assembly (3) outside; it also includes a dust cover (2), which covers the opening end of the outer riveted shell; The clamp (4) includes a clamping body (401), which is hinged to the inner wall of the outer rivet shell (1). The lower end of the clamping body (401) is provided with a support plate (402), and the upper end of the clamping body (401) is provided with an elastic plate (405). The support plate (402) is placed on the bottom of the heating assembly (3), and the elastic plate (405) is pressed on the top of the heating assembly (3).

2. The hot riveting head assembly for a binding machine according to claim 1, characterized in that: The heating assembly (3) includes a rivet head seat (6) with an open top and a rivet head sleeve (7). The rivet head sleeve (7) covers the open end of the rivet head seat (6). A cavity is formed between the rivet head sleeve (7) and the rivet head seat (6). The cavity is arranged from top to bottom with a hot rivet head (8), an insulating gasket (9), a first electrode plate (10), a heating plate (11), and a second electrode plate (12).

3. The hot riveting head assembly for a binding machine according to claim 2, characterized in that: The inner wall of the bottom of the rivet head seat (6) is provided with a positioning post (601). The hot rivet head (8), insulating sheet, first electrode sheet (10), heating sheet (11) and second electrode sheet (12) are all provided with through holes in the middle. The hot rivet head (8), insulating sheet, first electrode sheet (10), heating sheet (11) and second electrode sheet (12) are coaxially sleeved (403) and mounted outside the positioning post (601).

4. The hot riveting head assembly for a binding machine according to claim 2, characterized in that: A bushing (403) is provided at the connection between the support plate (402) and the clamping body (401). A hinge shaft (5) is provided inside the bushing (403). Both ends of the hinge shaft (5) are connected to the inner wall of the outer rivet shell (1).

5. The hot riveting head assembly for a binding machine according to claim 2, characterized in that: The clamping body (401) has a limiting piece (404) at its upper end. One end of the limiting piece (404) is connected to the upper end of the clamping body, and the limiting piece (404) blocks the upper side of the rivet head sleeve (7). The elastic piece (405) is located on the lower side of the limiting piece (404). One end of the elastic piece (405) is connected to the other end of the limiting piece (404), and the elastic piece (405) abuts against the upper surface of the rivet head sleeve (7).

6. The hot riveting head assembly for a binding machine according to claim 5, characterized in that: The shape of the connection between the clamping body (401) and the limiting piece (404) matches the shape of the outer wall of the upper end of the rivet head seat (6); the connection between the clamping body (401) and the limiting piece (404) rests against the outer side of the upper end of the rivet head seat (6).

7. The hot riveting head assembly for a binding machine according to claim 2, characterized in that: The inner wall of the bottom of the outer riveting shell (1) is provided with a protrusion (101), the protrusion (101) is placed under the bottom wall of the rivet head seat (6), and the support piece (402) is embedded between the protrusion (101) and the bottom wall of the rivet head seat (6).

8. The hot riveting head assembly for a binding machine according to claim 7, characterized in that: The minimum distance between the support plate (402) and the inner wall of the bottom of the outer rivet shell (1) is equal to the height of the protrusion (101).

9. The hot riveting head assembly for a binding machine according to any one of claims 1 to 8, characterized in that: The clamps (4) are provided in multiple units, and the multiple clamps (4) are evenly distributed in the accommodating cavity.

10. The hot riveting head assembly for a binding machine according to claim 5, characterized in that: The lower surface of the dust cover (2) is provided with an abutment ring (201), and the lower end face of the abutment ring (201) abuts against the upper surface of the limiting piece (404).

11. The hot riveting head assembly for a binding machine according to claim 5, characterized in that: The support piece (402) is perpendicular to the clamping body (401), and the limiting piece (404) is perpendicular to the clamping body (401).

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