Continuous heat sealing and cutting device for thermoplastic bags

Abstract

The utility model is applicable to the technical field of plastic bag processing, and provides a thermoplastic bag continuous heat sealing and cutting device which comprises a material conveying mechanism, a hot melting mechanism and a cutting mechanism are fixedly connected in the material conveying mechanism, the hot melting mechanism and the cutting mechanism are located on the same straight line, and the material conveying mechanism comprises a bottom plate. The device comprises a bottom plate, supporting columns are fixedly connected to the two ends of the bottom plate, a plurality of supporting columns are arranged, conveying rollers are rotationally connected between the two supporting columns, the supporting columns are distributed at the four corners of the top of the bottom plate, the number of the conveying rollers is four, and the two conveying rollers are distributed between the two supporting columns. According to the continuous heat sealing and cutting device for the thermoplastic bag, the first moving block drives the upper hot melting plate to make contact with the lower hot melting plate, so that the upper hot melting plate and the lower hot melting plate are powered on, materials are subjected to heat sealing, and the upper hot melting plate makes vertical contact with the lower hot melting plate to prevent the materials from adhering; and the machined materials are collected through the collecting box.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic bag processing, and particularly relates to a continuous heat-sealing and cutting device for thermoplastic bags. Background Art

[0002] In today's era of rapid development, packaging technology is also constantly innovating to meet the high-quality requirements of various industries for product packaging. Among them, the continuous heat-sealing and cutting technology of thermoplastic bags, as a modern packaging method, has shown strong advantages in many fields such as food, medicine, and daily necessities.

[0003] After retrieval, a utility model patent with the publication number CN207207250U specifically discloses a plastic bag rolling cutting device, which includes a machine base, a slitting roller, a heat sealer, a feeding mechanism, a waste collecting mechanism, and a collection box. The double-layer plastic film is roll-cut and sealed through the horizontal heat-sealing roller and the longitudinal heat-sealing roller on the heat sealer. The double-layer film after roll-cutting and sealing is roll-cut once by the die roller and the knife roller on the slitting roller to cut out the formed plastic bags. The double-layer film roll is released through the feeding mechanism, the film after slitting is wound by the waste collecting mechanism, and the collection box collects the plastic bags after slitting. It overcomes the problems of slow processing speed, low efficiency, and high cost of the original plastic bag processing. The utility model has the characteristics of compact structure. By melting and sealing the double-layer plastic film and then roll-cutting it once to form, it can continuously process without interruption, with a fast speed and high efficiency.

[0004] In the above patent, only the double-layer plastic film is roll-cut and sealed through the horizontal heat-sealing roller and the longitudinal heat-sealing roller on the heat sealer, and the double-layer film after roll-cutting and sealing is roll-cut once by the die roller and the knife roller on the slitting roller to cut out the formed plastic bags, which is prone to adhesion to the material during material processing. Content of the Utility Model

[0005] The utility model provides a continuous heat-sealing and cutting device for thermoplastic bags, aiming to solve the problem that the existing continuous heat-sealing and cutting device for thermoplastic bags is prone to adhesion to the material during material processing.

[0006] The utility model is realized as follows. A continuous heat-sealing and cutting device for thermoplastic bags includes a feeding mechanism, and a hot-melting mechanism and a cutting mechanism are fixedly connected inside the feeding mechanism, and the hot-melting mechanism and the cutting mechanism are on the same straight line.

[0007] Preferably, the feeding mechanism includes a bottom plate, both ends of the bottom plate are fixedly connected with support columns, there are multiple support columns, and a transport roller is rotatably connected between the two support columns.

[0008] Preferably, the multiple support columns are distributed at the four corners of the top of the bottom plate, there are four transport rollers, two transport rollers are distributed between two support columns, and the two transport rollers are in mutual contact.

[0009] Preferably, the hot melting mechanism includes a first hydraulic rod, a first moving block is fixedly connected to the bottom of the first hydraulic rod, an upper hot melting plate is fixedly connected to the bottom of the first moving block, the hot melting mechanism includes a lower hot melting plate, and a cushion block is fixedly connected to the bottom of the lower hot melting plate.

[0010] Preferably, the top of the first hydraulic rod is fixedly connected to the inner top of the support frame, the bottom of the cushion block is fixedly connected to the top of the bottom plate, and the upper hot melting plate corresponds to the lower hot melting plate.

[0011] Preferably, the cutting mechanism includes a second hydraulic rod, a second moving block is fixedly connected to the bottom of the second hydraulic rod, a cutting block is fixedly connected to the bottom of the second moving block, the cutting mechanism includes a collection box, and ventilation windows are provided on both sides of the collection box.

[0012] Preferably, the top of the second hydraulic rod is fixedly connected to the inner top of the support frame, the cutting block is slidably connected to the inside of the collection box, there are a plurality of ventilation windows, and the plurality of ventilation windows are evenly distributed on both sides of the collection box.

[0013] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0014] The first moving block drives the upper hot melting plate to contact the lower hot melting plate, so that the upper hot melting plate and the lower hot melting plate are energized, thereby heat-sealing the material. The vertical contact between the upper hot melting plate and the lower hot melting plate prevents the material from sticking, and the collection box collects the processed material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is an exploded structural schematic diagram of the present utility model;

[0017] Figure 3 is a structural schematic diagram of the hot melting mechanism of the present utility model;

[0018] Figure 4 is a structural schematic diagram of the cutting mechanism of the present utility model;

[0019] In the figure: 1, a material conveying mechanism; 11, a bottom plate; 12, a support frame; 13, a support column; 14, a transport roller; 2, a hot melting mechanism; 21, a first hydraulic rod; 22, a first moving block; 23, an upper hot melting plate; 24, a lower hot melting plate; 25, a cushion block; 3, a cutting mechanism; 31, a second hydraulic rod; 32, a second moving block; 33, a cutting block; 34, a collection box; 35, a ventilation window. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase does not necessarily refer to the same embodiment at every occurrence in the specification, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] An embodiment of the present utility model provides a continuous heat-sealing and cutting device for thermoplastic bags, as Figures 1 - 4 shown, which includes a feeding mechanism 1. A hot-melting mechanism 2 and a cutting mechanism 3 are fixedly connected inside the feeding mechanism 1, and the hot-melting mechanism 2 and the cutting mechanism 3 are located on the same straight line.

[0023] It should be noted that due to the problem that the existing continuous heat-sealing and cutting device for thermoplastic bags is prone to adhesion to the material during material processing, in this solution, the first moving block 22 drives the upper hot-melting plate 23 to contact the lower hot-melting plate 24, so that the upper hot-melting plate 23 and the lower hot-melting plate 24 are electrified, thereby heat-sealing the material. The vertical contact between the upper hot-melting plate 23 and the lower hot-melting plate 24 prevents the material from adhering, and the collection box 34 is used to collect the processed material.

[0024] Specifically, in this embodiment, this solution mainly includes a feeding mechanism 1. A hot-melting mechanism 2 and a cutting mechanism 3 are fixedly connected inside the feeding mechanism 1, and the hot-melting mechanism 2 and the cutting mechanism 3 are located on the same straight line. The material is transported between the upper hot-melting plate 23 and the lower hot-melting plate 24 through the transport roller 14. At this time, the first moving block 22 is started to drive the upper hot-melting plate 23 to contact the lower hot-melting plate 24. At this time, the upper hot-melting plate 23 and the lower hot-melting plate 24 are electrified, thereby heat-sealing the material. The second hydraulic rod 31 is started to drive the second moving block 32 to move until the second moving block 32 is located inside the collection box 34. At this time, the outer side of the second moving block 32 will be in mutual contact with the inner side of the collection box 34, thereby cutting the material. The cut material will fall into the collection box 34 to collect the material.

[0025] In a further preferred embodiment of the present utility model, as Figures 1 - 4As shown in the figure, the feeding mechanism 1 includes a bottom plate 11. Both ends of the bottom plate 11 are fixedly connected with support columns 13. There are multiple support columns 13. A transport roller 14 is rotatably connected between the two support columns 13. The multiple support columns 13 are distributed at the four corners of the top of the bottom plate 11. There are four transport rollers 14. Two transport rollers 14 are distributed between the two support columns 13. The two transport rollers 14 are in contact with each other. After the materials are sent into the hot melting mechanism 2 and the cutting mechanism 3 for processing through the two transport rollers 14, the waste materials will be discharged outside the device through the space between the other two transport rollers 14.

[0026] In a further preferred embodiment of the present invention, as Figures 1 - 4 shown, the hot melting mechanism 2 includes a first hydraulic rod 21. A first moving block 22 is fixedly connected to the bottom of the first hydraulic rod 21. An upper hot melting plate 23 is fixedly connected to the bottom of the first moving block 22. The hot melting mechanism 2 includes a lower hot melting plate 24. A cushion block 25 is fixedly connected to the bottom of the lower hot melting plate 24. The top of the first hydraulic rod 21 is fixedly connected to the inner top of the support frame 12. The bottom of the cushion block 25 is fixedly connected to the top of the bottom plate 11. The upper hot melting plate 23 corresponds to the lower hot melting plate 24. The materials are transported between the upper hot melting plate 23 and the lower hot melting plate 24 through the transport roller 14. At this time, start the first moving block 22 to drive the upper hot melting plate 23 to contact the lower hot melting plate 24. At this time, the upper hot melting plate 23 and the lower hot melting plate 24 are powered on, so as to heat-seal the materials.

[0027] In a further preferred embodiment of the present invention, as Figures 1 - 4 shown, the cutting mechanism 3 includes a second hydraulic rod 31. A second moving block 32 is fixedly connected to the bottom of the second hydraulic rod 31. A cutting block 33 is fixedly connected to the bottom of the second moving block 32. The cutting mechanism 3 includes a collection box 34. Ventilation windows 35 are provided on both sides of the collection box 34. The top of the second hydraulic rod 31 is fixedly connected to the inner top of the support frame 12. The cutting block 33 is slidably connected inside the collection box 34. There are multiple ventilation windows 35. The multiple ventilation windows 35 are evenly distributed on both sides of the collection box 34. The materials after heat-sealing will be transported between the cutting block 33 and the collection box 34 through the transport roller 14. At this time, start the second hydraulic rod 31 to drive the second moving block 32 to move until the second moving block 32 is inside the collection box 34. At this time, the outer side of the second moving block 32 will be in contact with the inner side of the collection box 34, so as to cut the materials. The materials after cutting will fall into the collection box 34 to collect the materials.

[0028] It should be noted that, for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present utility model is not limited by the described action sequence, because according to the present utility model, certain steps may be adopted in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present utility model.

[0029] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above division of units may have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0030] The units described as separate components above may or may not be physically separated, and the components displayed as units may or may not be physical units. They can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0031] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope to be protected by the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add, delete or make other adjustments to the features in the embodiments of the present utility model according to the situation, so as to obtain different technical solutions that essentially do not deviate from the concept of the present utility model. These technical solutions also belong to the scope to be protected by the present utility model.

Claims

1. A thermoplastic bag continuous heat sealing and cutting device, characterized in that: It comprises a feeding mechanism (1), wherein a hot-melt mechanism (2) and a cutting mechanism (3) are fixedly connected inside the feeding mechanism (1), and the hot-melt mechanism (2) and the cutting mechanism (3) are located on the same straight line; The hot melt mechanism (2) comprises a first hydraulic rod (21), the bottom of the first hydraulic rod (21) is fixedly connected to a first moving block (22), the bottom of the first moving block (22) is fixedly connected to an upper hot melt plate (23), and the hot melt mechanism (2) comprises a lower hot melt plate (24), the bottom of the lower hot melt plate (24) is fixedly connected to a cushion block (25).

2. A thermoplastic bag continuous heat sealing and cutting device as claimed in claim 1, characterized in that: The feeding mechanism (1) comprises a bottom plate (11), both ends of the bottom plate (11) are fixedly connected with support columns (13), a plurality of support columns (13) are provided, and a transport roller (14) is rotatably connected between two of the support columns (13).

3. A thermoplastic bag continuous heat sealing and cutting device as claimed in claim 2, characterized in that: The plurality of support columns (13) are distributed at the four corners of the top of the bottom plate (11), and four transport rollers (14) are provided, two of the transport rollers (14) are distributed between the two support columns (13), and the two transport rollers (14) are in contact with each other.

4. A thermoplastic bag continuous heat sealing and cutting device as claimed in claim 3, characterized in that: The top of the first hydraulic rod (21) is fixedly connected to the top of the support frame (12), the bottom of the cushion block (25) is fixedly connected to the top of the bottom plate (11), and the upper hot melt plate (23) and the lower hot melt plate (24) correspond to each other.

5. A thermoplastic bag continuous heat sealing and cutting device as claimed in claim 1, characterized in that: The cutting mechanism (3) comprises a second hydraulic rod (31), the bottom of the second hydraulic rod (31) is fixedly connected to a second moving block (32), the bottom of the second moving block (32) is fixedly connected to a cutting block (33), and the cutting mechanism (3) comprises a collecting box (34), and ventilation windows (35) are provided on both sides of the collecting box (34).

6. A thermoplastic bag continuous heat sealing and cutting device as claimed in claim 5, characterized in that: The top of the second hydraulic rod (31) is fixedly connected to the top of the support frame (12), the cutting block (33) is slidably connected to the inside of the collection box (34), and a plurality of ventilation windows (35) are provided, and the plurality of ventilation windows (35) are evenly distributed on both sides of the collection box (34).

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