Heat sealing structure capable of rapidly changing cutter and bag making machine

Abstract

The utility model discloses a heat-sealing structure and a bag making machine capable of quickly changing a knife, at least comprising a heat knife, a heating plate, a heat insulation plate and a cross beam, the heat knife is connected with the heating plate, the other side of the heating plate is installed on the cross beam, and the heat insulation plate is installed between the cross beam and the heating plate; a detachable device is arranged between the hot knife and the heating plate and is of an attraction structure. According to the hot sealing structure capable of rapidly replacing the cutter and the bag making machine, the attraction structure is directly arranged, particularly the attraction structure adopts the heat-resisting magnetic steel, the magnet principle is applied, direct attraction is achieved through the groove body structures on the hot cutter and the heating plate, and separation of the hot cutter and the heating plate can be rapidly achieved through the arrangement of the dismounting groove and the positioning stop piece; the method is simple and convenient and saves labor cost.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a hot-sealing structure with fast knife change and a bag making machine. Background Art

[0002] Packaging bags refer to bags used to package various items, which make it easy to transport and store goods during production and circulation, and are widely used in daily life and industrial production. At present, during the processing of packaging bags, especially after the hand-jointing forming, it is necessary to carry out the hot pressing positioning process with the main film, as well as the hot pressing process with the subsequent main film. During the hot pressing process, a hot knife is needed to achieve it.

[0003] The traditional hot sealing structure includes at least a hot knife and a heating plate, and the hot knife and the heating plate are locked and fixed by a locking structure such as screws. Such a structure requires that the screws and other locking devices need to be removed one by one when the hot knife is disassembled and replaced, which requires a lot of manpower and time costs, and it is extremely inconvenient to disassemble and replace the knife. Utility Model Content

[0004] The utility model aims to provide a hot-sealing structure and a bag-making machine with a fast knife-changing function, so as to solve the problem of inconvenient knife-changing in the existing hot-sealing structure in the background technology.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Provided is a hot sealing structure with a quick knife change, comprising at least a hot knife, a heating plate, a heat insulation plate and a cross beam, wherein the hot knife is connected to the heating plate, the other side of the heating plate is mounted on the cross beam, and a heat insulation plate is installed between the cross beam and the heating plate;

[0007] A detachable device is arranged between the ironing knife and the heating plate, and the detachable device is a suction structure.

[0008] Preferably, the suction structure is respectively arranged on the ironing knife and the heating plate, and the suction structures located on the ironing knife and the heating plate are symmetrically arranged and suctioned to each other to achieve the combination and separation of the ironing knife and the heating plate.

[0009] Preferably, the attraction structure has at least magnetic steel, and the magnetic steel is heat-resistant magnetic steel.

[0010] Preferably, the ironing knife and the heating plate are both provided with grooves, and the magnetic steel is installed and fixed in the grooves.

[0011] Preferably, the outer surface of the magnetic steel is flush with the surfaces of the ironing knife and the heating plate, so as to achieve complete fit between the ironing knife and the heating plate.

[0012] Preferably, a disassembly groove is provided on the side of the ironing knife facing the heating plate, and a positioning stop is provided on the side of the heating plate corresponding to the disassembly groove. The positioning stop faces the disassembly groove and extends into the groove body of the disassembly groove, so as to realize the positioning and disassembly of the ironing knife.

[0013] Preferably, the width of the disassembly groove is greater than the width of the positioning stopper, so that the ironing knife can move in the horizontal direction to complete the disassembly of the ironing knife.

[0014] The utility model also provides a bag-making machine, which at least comprises a frame, and the hot-sealing structure for rapid knife change is installed on the frame. Beneficial Effects

[0015] The utility model provides a fast knife-changing hot-sealing structure and a bag-making machine, which are directly provided with an attraction structure. In particular, the attraction structure adopts heat-resistant magnetic steel and uses the magnet principle to directly adsorb the hot knife and the heating plate through the groove structure. The disassembly groove and the positioning stopper can quickly separate the hot knife from the heating plate, which is simple and convenient and saves labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of the hot sealing structure with quick knife change provided by the utility model installed on a frame;

[0017] Figure 2 yes Figure 1 Schematic diagram of the middle hot sealing structure;

[0018] In the figure:

[0019] frame;

[0020] Hot sealing structure, 20-hot sealing knife, 200-magnetic steel, 201-groove, 202-disassembly groove, 2020-baffle, 21-heating plate, 210-positioning stopper, 22-heat insulation board, 23-crossbeam. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] In the description of this embodiment, the terms "upper", "lower", "right", and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present utility model.

[0025] Combination Figure 1-2 As shown, this embodiment provides a hot-sealing structure 2 for fast knife change, which is installed on the frame 1 of the bag-making machine. The bag-making machine is an existing bag-making machine structure, and the frame 1 is a supporting frame; the hot-sealing structure 2 has an upper hot-sealing component and a lower hot-sealing component, and the packaging bag film passes through the upper hot-sealing component and the lower hot-sealing component to complete the hot-sealing operation. The components of the upper hot-sealing component and the lower hot-sealing component are basically the same. The above hot-sealing component is used for explanation, and at least includes a hot knife 20, a heating plate 21, a heat insulation plate 22 and a crossbeam 23. The hot knife 20 is connected to the heating plate 21, and the other side of the heating plate 21 is installed on the crossbeam 23. The crossbeam is connected to the frame 1, and the heat insulation plate 22 is installed between the crossbeam 23 and the heating plate 21; a detachable device is provided between the hot knife 20 and the heating plate 21, and the detachable device is a suction structure. The suction structures are respectively arranged on the ironing knife 20 and the heating plate 21 . The suction structures on the ironing knife 20 and the heating plate 21 are symmetrically arranged and suctioned to each other to realize the combination and separation of the ironing knife 20 and the heating plate 21 .

[0026] The attraction structure in this embodiment adopts a magnetic steel 200, which is a heat-resistant magnetic steel 200. A groove 201 is provided on the hot knife 20 and the heating plate 21. The magnetic steel 200 is installed in the groove 201 and fixed. The outer surface of the fixed magnetic steel 200 is flush with the surface of the hot knife 20 and the heating plate 21 to achieve complete fit between the hot knife 20 and the heating plate 21. The magnetic poles of the magnetic steel 200 relatively arranged on the hot knife 20 and the heating plate 21 are opposite, and the principle of magnet is used to achieve direct and effective attraction.

[0027] The magnetic steel 200 can be installed in the groove 201 by screws, gluing, buckling, etc., so as to effectively fix the magnetic steel 200 and the groove 201, which is within the scope of this solution.

[0028] A disassembly groove 202 is provided on the side of the ironing knife 20 facing the heating plate 21, and a positioning stopper 210 is provided on the side of the heating plate 21 corresponding to the disassembly groove 202. The positioning stopper 210 faces the disassembly groove 202 and extends into the groove body of the disassembly groove 202, so as to realize the positioning and disassembly of the ironing knife 20. The width of the disassembly groove 202 is greater than the width of the positioning stopper 210, so that the ironing knife 20 can move in the horizontal direction to complete the disassembly of the ironing knife 20.

[0029] In this embodiment, there are differences in the structures on both sides of the disassembly groove 202. The disassembly groove 202 on one side is a U-shaped groove structure with a baffle 2020 on the outside of the groove structure. During installation, the effective stopping and positioning of the positioning stop 210 can be achieved. The disassembly groove 202 on the other side is an L-shaped groove structure. The outside of the L-shaped groove structure does not have a baffle and is an open structure, which is convenient for direct removal during disassembly. In actual operation, the two disassembly grooves can both be U-shaped or L-shaped or any of the options in this embodiment are acceptable, as long as the width of the disassembly groove 202 is greater than the width of the positioning stop 210, so that the disassembly groove 202 has a margin for the positioning stop 210 to move horizontally.

[0030] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A hot-sealing structure with a quick knife change, characterized in that: At least comprises a hot knife, a heating plate, a heat insulating plate and a cross beam, wherein the hot knife is connected to the heating plate, the other side of the heating plate is mounted on the cross beam, and a heat insulating plate is installed between the cross beam and the heating plate; A detachable device is arranged between the ironing knife and the heating plate, and the detachable device is a suction structure.

2. The hot-sealing structure with rapid knife change according to claim 1, characterized in that: The suction structures are respectively arranged on the ironing knife and the heating plate. The suction structures on the ironing knife and the heating plate are symmetrically arranged and suctioned to each other to realize the combination and separation of the ironing knife and the heating plate.

3. The hot-sealing structure for rapid knife change according to claim 1, characterized in that: The attraction structure at least comprises magnetic steel, and the magnetic steel is heat-resistant magnetic steel.

4. The hot-sealing structure for rapid knife change according to claim 3, characterized in that: The ironing knife and the heating plate are both provided with grooves, and the magnetic steel is installed and fixed in the grooves.

5. The hot-sealing structure for rapid knife change according to claim 3, characterized in that: The outer surface of the magnetic steel is flush with the surfaces of the ironing knife and the heating plate, so as to achieve complete fit between the ironing knife and the heating plate.

6. The hot-sealing structure for rapid knife change according to claim 1, characterized in that: A disassembly groove is arranged on the side of the ironing knife facing the heating plate, and a positioning stopper is arranged on the side of the heating plate corresponding to the disassembly groove. The positioning stopper faces the disassembly groove and extends into the groove body of the disassembly groove, so as to realize the positioning and disassembly of the ironing knife.

7. The hot-sealing structure for rapid knife change according to claim 6, characterized in that: The width of the disassembly groove is greater than the width of the positioning stopper, so that the ironing knife can move in the horizontal direction to complete the disassembly of the ironing knife.

8. A bag making machine, the bag making machine having at least a frame, characterized in that: The hot sealing structure for quick knife change described in any one of the aforementioned claims 1-7 is installed on the frame.

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