Heat sealing device of packaging machine

Abstract

The utility model provides a packaging machine heat sealing device which comprises a left soldering iron installation mechanism, a right soldering iron installation mechanism and a tensioning assembly, the tensioning assembly comprises a tension spring, a first supporting column and a second supporting column, the upper portion of the first supporting column is provided with a first annular groove, the middle of the first supporting column is a regular polygon column body, and the outer circumferential face of the lower portion of the first supporting column is provided with threads; a first threaded hole is formed in a corner bracket of the left soldering iron mounting mechanism, and a first via hole is formed in a connecting plate of the left soldering iron mounting mechanism; a second annular groove is formed in the upper portion of the second supporting column, the middle of the second supporting column is a regular polygon column, and threads are arranged on the outer circumferential face of the lower portion of the second supporting column. A second threaded hole is formed in a corner bracket of the right soldering iron mounting mechanism; a second through hole is formed in a connecting plate of the right soldering iron mounting mechanism; one end of the tension spring is hooked in the first annular groove, and the other end of the tension spring is hooked in the second annular groove. The heat-sealing soldering iron can be well prevented from moving downwards, the quality of cigarette packets is guaranteed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cigarette packing, and particularly relates to a heat sealing device for a packing machine. Background Art

[0002] The YB55 transparent paper packet packaging machine, an auxiliary machine for the ZB45 packaging unit, wraps packets supplied by the upstream machine with a layer of transparent paper to provide a seal, moisture-proof seal, and enhance the appearance, thereby extending shelf life and increasing product added value. The packaging machine includes a heat-sealing device for heat-sealing the sides of cigarette packets wrapped in transparent paper. Wear on the bevel gear within this device can cause excessive gaps between adjacent teeth on the gear. During operation, this can cause the left and right heat-sealing irons to move downward, driven by the angle brackets and connecting plates mounted on them. This can lead to quality defects such as wrinkles on the side seals of the transparent paper packets and loose adhesion. Furthermore, the heat-sealing irons can rub against the mold box frame on the packaging machine's forming wheels, causing wear.

[0003] Because the bevel gear is installed in the transmission gearbox of the heat sealing device, replacing a worn bevel gear requires disassembly of numerous parts, resulting in long maintenance times and tedious disassembly, which increases the labor intensity of maintenance personnel. Furthermore, frequently replacing worn bevel gears significantly impacts the packaging machine's production efficiency. Therefore, how to effectively prevent the heat sealing iron from moving downward without replacing the bevel gear has become a pressing technical challenge facing those skilled in the art. Utility Model Content

[0004] The purpose of the utility model is to provide a heat sealing device for a packaging machine to solve the above technical problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A heat sealing device for a packaging machine, which includes a left soldering iron mounting mechanism, a right soldering iron mounting mechanism, and a tensioning assembly, wherein the tensioning assembly includes a tension spring, a first support column and a second support column, the upper portion of the first support column is provided with a first annular groove, the middle portion of the first support column is a regular polygonal column, the outer circumferential surface of the lower portion of the first support column is provided with a thread, the angle bracket of the left soldering iron mounting mechanism is provided with a first threaded hole for cooperating with the lower portion of the first support column, and the connecting plate of the left soldering iron mounting mechanism is provided with a first through hole for the lower portion of the first support column to pass through, the first through hole is opposite to the first threaded hole, and the diameter of the first through hole is larger than that of the first threaded hole. The diameter of the first threaded hole; a second annular groove is provided on the upper part of the second support column, the middle part of the second support column is a regular polygonal column, and the outer circumferential surface of the lower part of the second support column is provided with a thread, and a second threaded hole for cooperating with the lower part of the second support column is provided on the angle bracket of the right soldering iron mounting mechanism, and a second through hole for the lower part of the second support column to pass through is provided on the connecting plate of the right soldering iron mounting mechanism, the second through hole is opposite to the second threaded hole, and the diameter of the second through hole is larger than the diameter of the second threaded hole; one end of the tension spring is hooked in the first annular groove, and the other end of the tension spring is hooked in the second annular groove.

[0007] Preferably, the upper ends of the first supporting column and the second supporting column are both hemispherical structures.

[0008] Preferably, the middle portions of the first support column and the second support column are both regular hexagonal columns.

[0009] Preferably, the diameter of the circumscribed circle of the regular hexagonal column of the first support column is 5 mm to 7 mm larger than the diameter of the lower portion of the first support column.

[0010] Preferably, the diameter of the upper portion of the first support column is the same as the diameter of the lower portion of the first support column.

[0011] Preferably, the diameter of the first through hole is 0.4 mm to 0.6 mm larger than the diameter of the first threaded hole.

[0012] The beneficial effects of the present invention are:

[0013] The heat sealing device of the packaging machine of the present invention maintains a certain distance between the first support column and the second support column through the tension spring. In this way, even when the bevel gear is worn, the restoring force of the tension spring is used to pull the angle bracket of the left soldering iron mounting mechanism through the first support column, so that the angle bracket can be maintained in the initial installation state, thereby enabling the connecting plate mounted on the angle bracket and the left heat-sealing soldering iron mounted on the connecting plate to be maintained in the initial installation state, thereby preventing the left heat-sealing soldering iron from moving downward; at the same time, the restoring force of the tension spring is used to pull the angle bracket of the right soldering iron mounting mechanism through the second support column, so that the angle bracket of the right soldering iron mounting mechanism can be maintained in the initial installation state, thereby enabling the connecting plate mounted on the angle bracket and the right heat-sealing soldering iron mounted on the connecting plate to be maintained in the initial installation state, thereby preventing the right heat-sealing soldering iron from moving downward. It can be seen that the utility model can effectively prevent the left heat sealing iron and the right heat sealing iron from moving downward by arranging a tensioning device between the angle bracket of the left soldering iron mounting mechanism and the angle bracket of the right soldering iron mounting mechanism without replacing the worn bevel gear, thereby better ensuring the heat sealing quality of the cigarette pack, avoiding quality defects such as side seal wrinkles and loose adhesion of the transparent paper on the left and right sides of the cigarette pack, and better avoiding wear caused by friction between the left and right heat sealing irons and the mold box frame on the forming wheel of the packaging machine; and, it can effectively reduce the replacement frequency of the bevel gear and improve the production efficiency of the packaging machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments, and further describe the specific embodiments of the present invention in detail in conjunction with the drawings, wherein

[0015] Figure 1 A schematic diagram of a heat sealing device for a packaging machine provided in an embodiment of the present invention;

[0016] Figure 2 An axonometric view of a first support column provided in an embodiment of the present utility model;

[0017] Figure 3 A front view of a first support column provided in an embodiment of the present utility model;

[0018] Figure 4 A top view of the first support column provided in an embodiment of the present utility model;

[0019] Figure 5 This is an axonometric view of the tension spring provided in an embodiment of the present utility model.

[0020] In the accompanying drawings:

[0021] 11. Angle bracket of the left soldering iron mounting mechanism, 12. Connecting plate of the left soldering iron mounting mechanism,

[0022] 13. Heat sealing soldering iron on the left; 21. Angle bracket of the soldering iron mounting mechanism on the right.

[0023] 22. Connecting plate of the soldering iron mounting mechanism on the right side, 23. Heat sealing soldering iron on the right side;

[0024] 31. tension spring; 32. first support column; 321. upper portion of the first support column;

[0025] 322, the middle part of the first support column, 323, the lower part of the first support column,

[0026] 324. First annular groove, 325. Hemispherical structure, 33. Second support column. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention.

[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0030] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0031] like Figures 1 to 5As shown, the embodiment of the present invention provides a packaging machine heat sealing device, which includes a left soldering iron mounting mechanism, a right soldering iron mounting mechanism, and a tensioning assembly. The tensioning assembly includes a tension spring 31, a first support column 32 and a second support column 33. The upper portion 321 of the first support column is provided with a first annular groove 324, the middle portion 322 of the first support column is a regular polygonal column, and the outer circumferential surface of the lower portion 323 of the first support column is provided with a thread. The angle bracket 11 of the left soldering iron mounting mechanism is provided with a first threaded hole for matching with the lower portion 323 of the first support column, and the connecting plate 12 of the left soldering iron mounting mechanism is provided with a first through hole for the lower portion 323 of the first support column to pass through, and the first through hole is connected to the first threaded hole. The holes are relative, and the diameter of the first through hole is larger than the diameter of the first threaded hole; the upper part of the second support column 33 is provided with a second annular groove, the middle part of the second support column is a regular polygonal cylinder, and the outer circumferential surface of the lower part of the second support column is provided with a thread, and the angle bracket 21 of the right soldering iron mounting mechanism is provided with a second threaded hole for cooperating with the lower part of the second support column, and the connecting plate 22 of the right soldering iron mounting mechanism is provided with a second through hole for the lower part of the second support column to pass through, the second through hole is opposite to the second threaded hole, and the diameter of the second through hole is larger than the diameter of the second threaded hole; one end of the tension spring 31 is hooked in the first annular groove, and the other end of the tension spring 31 is hooked in the second annular groove.

[0032] The packaging machine heat sealing device provided by the embodiment of the present invention maintains a certain distance between the first support column 32 and the second support column 33 through the tension spring 31. In this way, even when the bevel gear is worn, the restoring force of the tension spring is used to pull the angle bracket 11 of the left soldering iron mounting mechanism through the first support column 32, so that the angle bracket can be maintained in the initial installation state, thereby enabling the connecting plate mounted on the angle bracket and the left heat sealing soldering iron mounted on the connecting plate to be maintained in the initial installation state, thereby preventing the left heat sealing soldering iron 13 from moving downward; at the same time, the restoring force of the tension spring is used to pull the angle bracket 21 of the right soldering iron mounting mechanism through the second support column 33, so that the angle bracket of the right soldering iron mounting mechanism can be maintained in the initial installation state, thereby enabling the connecting plate mounted on the angle bracket and the right heat sealing soldering iron mounted on the connecting plate to be maintained in the initial installation state, thereby preventing the right heat sealing soldering iron 23 from moving downward. It can be seen that the utility model can effectively prevent the left heat-sealing iron 13 and the right heat-sealing iron 23 from moving downward without replacing the worn bevel gear by providing a tensioning device between the angle bracket of the left soldering iron mounting mechanism and the angle bracket of the right soldering iron mounting mechanism, thereby ensuring the heat-sealing quality of the cigarette pack, avoiding quality defects such as side seal wrinkles and loose adhesion of the transparent paper on the left and right sides of the cigarette pack, and effectively avoiding wear caused by friction between the left and right heat-sealing irons and the mold box frame on the forming wheel of the packaging machine; and can effectively reduce the replacement frequency of the bevel gear and improve the production efficiency of the packaging machine.

[0033] Specifically, the upper ends of the first support column and the second support column are both hemispherical structures 325, so as to better prevent the first support column and the second support column from causing scratches to maintenance personnel and other surrounding parts.

[0034] It can be preferred that the middle part 322 of the first support column and the middle part of the second support column are both regular hexagonal columns, i.e., regular hexagonal prisms, so that it is convenient to use disassembly tools to cooperate with them, and then the first support column and the second support column can be easily rotated, making the installation and disassembly of the first support column and the second support column more labor-saving and quick.

[0035] Specifically, the diameter of the circumscribed circle of the regular hexagonal column of the first support column is 5 mm to 7 mm larger than the diameter of the lower portion 323 of the first support column, and may be preferably 6 mm.

[0036] Furthermore, the diameter of the upper portion 321 of the first support column is the same as the diameter of the lower portion 323 of the first support column. It is understood that the second support column has the same structure as the first support column, and the dimensions of each part of the second support column can be the same as those of each part of the first support column.

[0037] Specifically, the diameter of the first via hole is 0.4mm to 0.6mm larger than the diameter of the first threaded hole, and preferably 0.5mm, to facilitate connection between the first support column and the angle bracket of the left soldering iron mounting mechanism. Similarly, the diameter of the second via hole can be 0.4mm to 0.6mm larger than the diameter of the second threaded hole, and preferably 0.5mm, to facilitate connection between the second support column and the angle bracket of the right soldering iron mounting mechanism.

[0038] It can be understood that the left soldering iron mounting mechanism and the right soldering iron mounting mechanism on the packaging machine are arranged relative to each other, and the movement of the angle brackets in the two mounting mechanisms, that is, the movement of the heat sealing soldering iron, are driven by their respective bevel gears. There are through holes on the left and right sides of the forming wheel of the packaging machine for the left and right heat sealing soldering irons to pass through. This is the structure of the existing packaging machine and will not be repeated here.

[0039] In a specific embodiment, the diameter of the upper part 321 of the first support column is 20 mm, and its axial length is 35 mm, the diameter of the hemispherical structure 325 is 20 mm, the axial length of the first annular groove 324 is 4 mm, and the vertical distance between the lower side of the first annular groove and the upper side of the regular hexagonal column is 16 mm; the diameter of the lower part 323 of the first support part is 20 mm, and its axial length is 20 mm; the diameter of the middle part 322 of the first support part, i.e., the circumscribed circle of the regular hexagonal column, is 26 mm, and its axial length is 70 mm.

[0040] The utility model relies on the tension provided by the tension spring, so that when the bevel gear is worn, the heat sealing irons on the left and right sides can still remain in their original state and are not likely to move downward, thereby effectively preventing quality defects such as wrinkles on the transparent paper side seals and loose adhesion caused by uneven contact pressure between the heat sealing irons and the side surfaces of the cigarette pack, and also avoiding friction between the heat sealing irons and the side edges of the mold box of the forming wheel.

[0041] The utility model improves the quality of heat sealing of cigarette packs, increases the service life of parts, saves maintenance costs, reduces the consumption of raw materials, and improves production efficiency; at the same time, it also saves maintenance time, reduces the labor intensity of maintenance personnel, reduces quality risks caused by bevel gear wear, and achieves the purpose of preventive maintenance.

[0042] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A heat sealing device for a packaging machine, characterized in that: It includes a left soldering iron mounting mechanism, a right soldering iron mounting mechanism, and a tensioning assembly, wherein the tensioning assembly includes a tension spring, a first support column and a second support column, the upper portion of the first support column is provided with a first annular groove, the middle portion of the first support column is a regular polygonal column, the outer circumferential surface of the lower portion of the first support column is provided with a thread, the angle bracket of the left soldering iron mounting mechanism is provided with a first threaded hole for cooperating with the lower portion of the first support column, and the connecting plate of the left soldering iron mounting mechanism is provided with a first through hole for the lower portion of the first support column to pass through, the first through hole is opposite to the first threaded hole, and the diameter of the first through hole is larger than the first threaded hole the diameter of the hole; a second annular groove is provided on the upper part of the second support column, the middle part of the second support column is a regular polygonal cylinder, the outer circumferential surface of the lower part of the second support column is provided with a thread, and a second threaded hole for cooperating with the lower part of the second support column is provided on the angle bracket of the right soldering iron mounting mechanism, and a second through hole for the lower part of the second support column to pass through is provided on the connecting plate of the right soldering iron mounting mechanism, the second through hole is opposite to the second threaded hole, and the diameter of the second through hole is larger than the diameter of the second threaded hole; one end of the tension spring is hooked in the first annular groove, and the other end of the tension spring is hooked in the second annular groove.

2. The heat sealing device for packaging machine according to claim 1, characterized in that: The upper ends of the first supporting column and the second supporting column are both hemispherical structures.

3. The heat sealing device for packaging machine according to claim 1, characterized in that: The middle parts of the first supporting column and the second supporting column are both regular hexagonal columns.

4. The heat sealing device for packaging machine according to claim 3, characterized in that: The diameter of the circumscribed circle of the regular hexagonal column of the first support column is 5 mm to 7 mm larger than the diameter of the lower portion of the first support column.

5. The heat sealing device for packaging machine according to claim 4, characterized in that: The diameter of the upper portion of the first support column is the same as the diameter of the lower portion of the first support column.

6. The heat sealing device for a packaging machine according to any one of claims 1 to 5, characterized in that: The diameter of the first through hole is 0.4 mm to 0.6 mm larger than the diameter of the first threaded hole.

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