Plastic bag point breaking line cutting device

Abstract

The utility model discloses a plastic bag spot breaking line cutting device which comprises a conveying table, a spot breaking piece and a heat sealing piece, the spot breaking piece and the heat sealing piece are sequentially arranged in the conveying direction of a plastic bag, and guide roller sets used for conveying the plastic bag are arranged on the two sides of the conveying table respectively. The spot breaking piece is slidably arranged on the first frame body through the first driving part, and a linkage part connected with the spot breaking piece is arranged on the first frame body; the heat sealing piece is detachably arranged on a movable part on the second frame body, the movable part is rotationally connected with the second frame body, and the movable part is connected with the linkage part. Therefore, the first driving part is used for controlling the moving distance of the point breaking part, so that the point breaking part and the heat sealing part can process the plastic bag, the method integrates two processing functions into one driving part (the first driving part), and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product production, in particular to a plastic bag point breaking and line cutting device. Background Art

[0002] Plastic bags are bags made of plastic (commonly used plastics include polypropylene, polyester, nylon, etc.) as the main raw material and are often used to hold other items.

[0003] In the process of plastic bag processing, the plastic film can be transformed into a plastic bag by sequentially performing heat sealing and point breaking steps on the rolled plastic film. This method makes it easier for consumers to tear and separate the plastic bag, while also reducing the need for additional tools (such as knives), thereby improving safety in use.

[0004] At present, the point breaking line cutting and heat sealing processing of plastic bags are usually set together. In order to complete this process, two independent mechanisms are usually required to perform the point breaking line and heat sealing line processing respectively. Since plastic bags have different length processing requirements, the two drive mechanisms need to be coordinated and adjusted to ensure their operation synchronization and consistency, which increases the difficulty and cost of operation. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the utility model is to propose a plastic bag point-breaking and line-cutting device, which uses a first driving component to control the moving distance of the point-breaking component so that the point-breaking component and the heat-sealing component can respectively process the plastic bag. This method integrates two processing functions into one driving component (the first driving component), which helps to reduce costs.

[0007] To achieve the above-mentioned purpose, the utility model proposes a plastic bag point-breaking and line-cutting device, comprising a conveying platform and a point-breaking piece and a heat-sealing piece arranged in sequence along the conveying direction of the plastic bag, wherein guide roller groups for conveying the plastic bags are respectively arranged on both sides of the conveying platform, and a first frame and a second frame are arranged in sequence between the two guide roller groups; the point-breaking piece is slidably arranged on the first frame through a first driving component, and a linkage part connected to the point-breaking piece is arranged on the first frame, and a cutting part for point-breaking and cutting the plastic bag is arranged on one side of the point-breaking piece, and a groove matching the cutting part is arranged on the conveying platform; the heat-sealing piece is detachably arranged on a movable part on the second frame, and a heat-sealing part for heat-sealing the plastic bag is arranged on the heat-sealing piece, and the movable part is rotatably connected to the second frame, and the movable part is connected to the linkage part.

[0008] The plastic bag point-breaking and line-cutting device of the utility model uses a first driving component to control the moving distance of the point-breaking component, so that the point-breaking component can respectively realize the point-breaking cutting processing of the plastic bag and the heat-sealing processing of the plastic bag by the heat-sealing component. This method integrates two processing functions into one driving component (the first driving component), which helps to reduce costs.

[0009] In addition, the plastic bag point breaking and line cutting device proposed in the application may also have the following additional technical features:

[0010] Specifically, a linear rack is arranged on one side of the linkage portion, and a gear ring meshing with the linear rack is arranged on the outer side of the movable portion.

[0011] Specifically, the linkage parts and the movable parts are symmetrically arranged in two groups.

[0012] Specifically, the heat sealing portion is arranged in an arc shape, and a convex side of the arc-shaped heat sealing portion is arranged toward the moving track of the plastic bag.

[0013] Specifically, the linkage portion is slidably disposed on the first frame.

[0014] Specifically, the guide roller group includes a third frame and two guide rollers, wherein the two guide rollers are rotatably arranged on the third frame respectively, and the two guide rollers are respectively arranged on both symmetrical sides of the movement trajectory of the plastic bag, and gears are sleeved on the outer side of the guide rollers, and the two gears are meshed with each other, and a second driving component is arranged on one of the gears.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 This is a three-dimensional structural diagram of a plastic bag point breaking and line cutting device according to an embodiment of the utility model;

[0018] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of a plastic bag point breaking and line cutting device according to one embodiment of the utility model.

[0019] As shown in the figure: 10, conveying platform; 11, first frame; 12, second frame; 13, third frame; 14, groove; 20, point breaking piece; 21, cutting part; 30, first driving component; 40, linkage part; 41, linear rack; 50, heat sealing part; 51, heat sealing part; 60, movable part; 61, gear ring; 70, guide roller; 71, gear; 72, second driving component. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0021] The plastic bag point breaking and line cutting device according to the embodiment of the utility model will be described below with reference to the accompanying drawings.

[0022] like Figure 1-Figure 2 As shown, the plastic bag point breaking and line cutting device of the embodiment of the utility model may include a conveying platform and a point breaking component 20 and a heat sealing component 50 sequentially arranged along the conveying direction of the plastic bag.

[0023] Wherein, guide rollers 70 groups for conveying plastic bags are respectively arranged on both sides of the conveying platform, and a first frame 11 and a second frame 12 are sequentially arranged between the two guide rollers 70 groups.

[0024] It should be noted that the plastic bag between the two guide rollers 70 described in this embodiment can slide on the surface of the conveyor table, and during this process, the point breaking member 20 and the heat sealing member 50 can perform point breaking and cutting processing and heat pressing processing on the plastic bag respectively.

[0025] The point-breaking piece 20 is slidably arranged on the first frame 11 through the first driving component 30. The first frame 11 is provided with a linkage part 40 connected to the point-breaking piece 20. A cutting part 21 for point-breaking and cutting the plastic bag is arranged on one side of the point-breaking piece 20. A groove 14 matching with the cutting part 21 is arranged on the conveying platform.

[0026] It can be understood that the provided groove 14 can accommodate the cutting portion 21, thereby preventing the cutting portion 21 from damaging the conveying platform.

[0027] The heat sealing member 50 is detachably disposed on the movable portion 60 on the second frame 12 . The heat sealing member 50 is provided with a heat sealing portion 51 for heat-sealing the plastic bag. The movable portion 60 is rotationally connected to the second frame 12 , and the movable portion 60 is connected to the linkage portion 40 .

[0028] It should be noted that the heat sealing member 50 described in this embodiment can conduct heat to the heat sealing portion 51 through the heating unit thereon, so that the heat sealing portion 51 contacts the plastic film and performs heat sealing processing on the plastic film.

[0029] It should be noted that the first driving component 30 described in this embodiment can be a cylinder, a telescopic motor, etc. After the first driving component 30 is started, it can drive the breaking piece 20 to move relative to the conveying platform, thereby adjusting the distance between the breaking piece 20 and the conveying platform.

[0030] Specifically, during the actual processing operation of the plastic bag, the relevant personnel first pass the plastic film through the two guide rollers 70 in sequence, and the plastic film is made to fit with the surface of the conveying table during the process.

[0031] After the plastic film is installed, it can be conveyed by two guide rollers 70. During the process, the relevant personnel start the first driving component 30. When the first driving component 30 drives the breaking piece 20 to move toward the conveying platform, the linkage part 40 moves with the breaking piece 20 and drives the movable part 60 to drive the heat sealing piece 50 to rotate away from the conveying platform. At this time, the breaking piece 20 uses the cutting thereon to break the plastic bag; when the first driving component 30 drives the breaking piece 20 to move away from the conveying platform, the movable part 60 drives the heat sealing piece 50 to rotate toward the conveying platform, so that the heat sealing part 51 performs heat sealing processing on the plastic bag.

[0032] In an embodiment of the present invention, a linear rack 41 is disposed on one side of the linkage portion 40 , and a gear ring 61 meshing with the linear rack 41 is disposed on the outer side of the movable portion 60 .

[0033] In one embodiment of the present invention, two groups of linkage parts 40 and movable parts 60 are symmetrically arranged. It can be understood that the arrangement of two groups is conducive to the stable linkage between the breaking member 20 and the heat sealing member 50 .

[0034] It can be understood that when the linkage part 40 moves with the breaking piece 20 , the linear rack 41 can drive the gear ring 61 to rotate accordingly, and the rotation of the gear ring 61 can be synchronized with the rotation of the movable part 60 .

[0035] In one embodiment of the present invention, the heat sealing portion 51 is arranged in an arc shape, and the arc-shaped convex side of the heat sealing portion 51 is arranged toward the plastic bag movement track. It can be understood that the arc-shaped heat sealing portion 51 is convenient for rotating and contacting the plastic bag.

[0036] In an embodiment of the present invention, the linkage portion 40 is slidably disposed on the first frame 11 , which helps to improve the stability of the linkage portion 40 .

[0037] In one embodiment of the utility model, the guide roller 70 group includes a third frame 13 and two guide rollers 70, wherein the two guide rollers 70 are rotatably arranged on the third frame 13, and the two guide rollers 70 are respectively arranged on both sides of the symmetrical movement trajectory of the plastic bag, and a gear 71 is sleeved on the outer side of the guide roller 70, and the two gears 71 are meshed with each other, and a second driving component 72 is arranged on one of the gears 71.

[0038] It should be noted that the second driving component 72 described in this embodiment can be a reduction motor, a servo motor, etc. After the second driving component 72 is started, it can drive the gear 71 connected to it to rotate. After the gear 71 rotates, it can drive the gear 71 meshing with it to rotate, so that the two guide rollers 70 rotate relative to each other to realize the transmission of the plastic bags.

[0039] In summary, the plastic bag point-breaking and line-cutting device of the embodiment of the utility model uses the first driving component to control the moving distance of the point-breaking component, so that it can respectively realize the point-breaking cutting processing of the plastic bag by the point-breaking component and the heat-sealing processing of the plastic bag by the heat-sealing component. This method integrates two processing functions into one driving component (the first driving component), which helps to reduce costs.

[0040] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A plastic bag point breaking and cutting device, characterized in that: It includes a conveying platform and point breaking parts and heat sealing parts arranged in sequence along the conveying direction of the plastic bag, wherein: Guide roller groups for conveying plastic bags are respectively arranged on both sides of the conveying platform, and a first frame and a second frame are sequentially arranged between the two guide roller groups; The point-breaking piece is slidably arranged on the first frame through a first driving component, a linkage part connected to the point-breaking piece is arranged on the first frame, a cutting part for point-breaking and cutting the plastic bag is arranged on one side of the point-breaking piece, and a groove matching with the cutting part is arranged on the conveying platform; The heat sealing member is detachably arranged on the movable part on the second frame, the heat sealing member is provided with a heat sealing part for heat-sealing the plastic bag, the movable part is rotatably connected to the second frame, and the movable part is connected to the linkage part.

2. The plastic bag point breaking and cutting device according to claim 1, characterized in that: A linear rack is arranged on one side of the linkage part, and a gear ring meshing with the linear rack is arranged on the outer side of the movable part.

3. The plastic bag point breaking and cutting device according to claim 1, characterized in that: The linkage parts and the movable parts are symmetrically arranged in two groups.

4. The plastic bag point breaking and cutting device according to claim 1, characterized in that: The heat sealing portion is arranged in an arc shape, and a convex side of the arc-shaped heat sealing portion is arranged toward a moving track of the plastic bag.

5. The plastic bag point breaking and cutting device according to claim 1, characterized in that: The linkage part is slidably arranged on the first frame.

6. The plastic bag point breaking and cutting device according to claim 1, characterized in that: The guide roller group includes a third frame and two guide rollers, wherein the two guide rollers are rotatably arranged on the third frame respectively, and the two guide rollers are respectively arranged on two symmetrical sides of the movement trajectory of the plastic bag, and gears are sleeved on the outer side of the guide rollers, and the two gears are meshed with each other, and a second driving component is arranged on one of the gears.

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