Automatic edge folding mechanism for packaging bag

Abstract

The utility model discloses an automatic folding mechanism of a packaging bag, which relates to the technical field of packaging bag processing and comprises a main fixing frame, the inner side of the main fixing frame is provided with a packaging bag to be processed, one side of each of two ends of the main fixing frame is fixedly provided with a fixing plate, and a sliding rod is fixedly arranged between the two fixing plates. An edge folding assembly and a positioning assembly are arranged between the main fixing frame and the sliding rod; according to the technical scheme, by arranging the edge folding assembly, specifically, the packaging bag to be machined penetrates through the positioning roller and the edge folding roller, firstly, the edge, needing to be folded, of the packaging bag to be machined is turned over through guiding of the turning-over plate, and then when the packaging bag to be machined continues to move forwards, the edge of the packaging bag to be machined is turned over. The folded edge passes through the position between one end of the edge folding roller and the edge folding plate, then under the limiting effect of the edge folding plate, the folded part of the packaging bag to be machined is extruded and folded inwards, continuous edge folding is conducted in this way, and the working efficiency of edge folding of the packaging bag is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag processing technology, and in particular to an automatic folding mechanism for packaging bags. Background Technology

[0002] Packaging bags are plastic bags used to package goods, typically made of materials such as polyethylene, polypropylene, and polylactic acid. They can be heat-sealed at the opening and may have printed markings, barcodes, and other information added to their surface. The main functions of packaging bags are to protect goods, extend their shelf life, ensure safe transportation, and facilitate carrying items in daily life.

[0003] In the packaging industry, folding the edges of packaging bags is a crucial step in the packaging process. Traditional bag folding techniques mainly rely on manual operation, which has several drawbacks. First, manual folding is inefficient and cannot meet the needs of large-scale production. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies by providing an automatic folding mechanism for packaging bags, addressing the fact that folding packaging bags is a crucial step in the packaging process. Traditional packaging bag folding processes primarily rely on manual operation, which has several drawbacks. First, manual folding is inefficient and cannot meet the demands of large-scale production.

[0005] In view of this, the present invention provides an automatic folding mechanism for packaging bags, including a main fixing frame, a packaging bag to be processed is disposed inside the main fixing frame, a fixing plate is fixedly installed on one side of both ends of the main fixing frame, a sliding rod is fixedly installed between the two fixing plates, and a folding component and a positioning component are disposed between the main fixing frame and the sliding rod;

[0006] The folding assembly includes a first fixed frame, an adjusting screw, a folding roller, a second fixed frame, a positioning roller, a third fixed frame, a flipping plate, and a folding plate. The first fixed frame is slidably connected to the outer wall of the slide rod. The adjusting screw is rotatably connected to the middle of the fixed plate. The folding roller is rotatably connected to the bottom of the first fixed frame. One end of the second fixed frame is fixedly installed on the inner side of one end of the first fixed frame. The positioning roller is rotatably connected to one end of the second fixed frame. The third fixed frame is fixedly installed on the inner side of the main fixed frame. The flipping plate and the folding plate are fixedly installed on the top of the third fixed frame.

[0007] Optionally, one end of the adjusting screw is rotatably connected to the inner side of the first fixed frame, and the adjusting screw and the first fixed frame are threaded together.

[0008] Optionally, the folding roller and the positioning roller are located on the upper surface of the packaging bag to be processed, the folding plate is located at the bottom of the packaging bag to be processed, and the folding plate is located at one end of the folding roller.

[0009] Optionally, one end of the folding plate is higher than one end of the folded edge plate.

[0010] Optionally, the positioning assembly includes a fourth fixing frame, a fifth fixing frame, and a positioning pressure plate. The fourth fixing frame is fixedly installed at one end of the first fixing frame, one end of the fifth fixing frame is fixedly installed at one end of the fourth fixing frame, and the positioning pressure plate is fixedly installed at the bottom of the fifth fixing frame.

[0011] Optionally, the positioning pressure plate is located at one end of the folded edge plate.

[0012] Optionally, the positioning plate abuts against the upper surface of the packaging bag to be processed, and one end of the positioning plate is on the same straight line as the fold of the packaging bag to be processed.

[0013] As can be seen from the above technical solutions, the embodiments of this utility model have the following advantages:

[0014] 1. This utility model discloses an automatic folding mechanism for packaging bags. By setting up a folding component, specifically, the packaging bag to be processed is passed through a positioning roller and a folding roller. First, the edge of the packaging bag to be processed that needs to be folded is guided by a folding plate to fold up. Then, as the packaging bag to be processed continues to move forward, the folded edge passes between one end of the folding roller and the folding plate. Then, under the limiting action of the folding plate, the folded part of the packaging bag to be processed is squeezed and folded inward. This continuous folding improves the working efficiency of packaging bag folding.

[0015] 2. The present invention provides an automatic folding mechanism for packaging bags. Specifically, during the folding process, one end of a positioning plate limits the edge of the folded packaging bag to prevent the edge of the packaging bag from being lifted during folding, thus ensuring the folding effect and flatness of the bag.

[0016] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0020] Figure 3 This is a diagram illustrating the working process of this utility model;

[0021] Figure 4 This is a partial structural diagram of the folding edge assembly of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Main fixing frame; 2. Fixing plate; 3. Slide rod; 401. First fixing frame; 402. Adjusting screw; 403. Folding roller; 404. Second fixing frame; 405. Positioning roller; 406. Third fixing frame; 407. Folding plate; 408. Folding plate; 501. Fourth fixing frame; 502. Fifth fixing frame; 503. Positioning pressure plate; 6. Packaging bag to be processed. Detailed Implementation

[0023] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0024] The following describes in detail, with reference to the accompanying drawings, an automatic folding mechanism for a packaging bag according to an embodiment of the present invention.

[0025] Example 1

[0026] For easier understanding, please refer to Figures 1 to 4 An embodiment of an automatic folding mechanism for packaging bags provided by this utility model includes a main fixing frame 1, a packaging bag 6 to be processed is arranged inside the main fixing frame 1, a fixing plate 2 is fixedly installed on one side of both ends of the main fixing frame 1, a sliding rod 3 is fixedly installed between the two fixing plates 2, and a folding component and a positioning component are arranged between the main fixing frame 1 and the sliding rod 3.

[0027] The folding assembly includes a first fixing frame 401, an adjusting screw 402, a folding roller 403, a second fixing frame 404, a positioning roller 405, a third fixing frame 406, a folding plate 407, and a folding plate 408. The first fixing frame 401 is slidably connected to the outer wall of the slide rod 3. The adjusting screw 402 is rotatably connected to the middle of the fixing plate 2. The folding roller 403 is rotatably connected to the bottom of the first fixing frame 401. One end of the second fixing frame 404 is fixedly installed on the inner side of one end of the first fixing frame 401. The positioning roller 405 is rotatably connected to one end of the second fixing frame 404. The three fixed frames 406 are fixedly installed inside the main fixed frame 1. The folding plate 407 and the folding edge plate 408 are fixedly installed on the top of the third fixed frame 406. One end of the adjusting screw 402 is rotatably connected to the inside of the first fixed frame 401, and the adjusting screw 402 is threadedly engaged with the first fixed frame 401. The folding edge roller 403 and the positioning roller 405 are located on the upper surface of the packaging bag 6 to be processed. The folding plate 407 is located at the bottom of the packaging bag 6 to be processed. The folding edge plate 408 is located at one end of the folding edge roller 403. The height of one end of the folding plate 407 is higher than that of one end of the folding edge plate 408.

[0028] It should be noted that by setting up the folding roller 403 and the folding plate 408, the packaging bag 6 to be processed is first conveyed by the conveying roller, and then it passes through the positioning roller 405 and the folding roller 403. When the conveying roller drives the packaging bag 6 to be processed to move, the edge of the packaging bag 6 to be processed to be folded up is folded up by the guide of the folding plate 407. Then, when the packaging bag 6 to be processed continues to move forward, the folded edge passes between one end of the folding roller 403 and the folding plate 408. Then, under the limiting action of the folding plate 408, the folded part of the packaging bag 6 to be processed is squeezed and folded inward. This continuous folding improves the working efficiency of the packaging bag folding.

[0029] Example 2

[0030] In some embodiments, such as Figure 3 As shown, the positioning assembly includes a fourth fixing frame 501, a fifth fixing frame 502, and a positioning pressure plate 503. The fourth fixing frame 501 is fixedly installed at one end of the first fixing frame 401, and one end of the fifth fixing frame 502 is fixedly installed at one end of the fourth fixing frame 501. The positioning pressure plate 503 is fixedly installed at the bottom of the fifth fixing frame 502. The positioning pressure plate 503 is located at one end of the folding plate 408. The positioning pressure plate 503 abuts against the upper surface of the packaging bag 6 to be processed, and one end of the positioning pressure plate 503 is on the same straight line as the folded part of the packaging bag 6 to be processed.

[0031] It should be noted that by setting a positioning plate 503, one end of the positioning plate 503 limits the edge of the packaging bag 6 to be processed that has been folded, which can prevent the edge of the packaging bag from being pulled up during folding, thus ensuring the folding effect and flatness of the bag.

[0032] Working principle: During use, the packaging bag 6 to be processed is conveyed by the conveyor roller and then passes through the positioning roller 405 and the folding roller 403. When the conveyor roller moves the packaging bag 6, the edge of the packaging bag 6 that needs to be folded is folded up by the guide of the folding plate 407. Then, as the packaging bag 6 continues to move forward, the folded edge passes between one end of the folding roller 403 and the folding plate 408. Under the limiting action of the folding plate 408, the folded part of the packaging bag 6 is squeezed and folded inward. At the same time, the positioning pressure plate 503 can limit the folding edge to prevent the edge of the packaging bag from being pulled up during folding, thus ensuring the folding effect and flatness of the bag. This continuous folding greatly improves the working efficiency of folding packaging bags.

[0033] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An automatic bag flanging mechanism for a packaging bag, characterized by: The utility model provides a packaging bag folding device, including main fixed frame (1), the inside of main fixed frame (1) is provided with the packaging bag (6) to be processed, one side of both ends of main fixed frame (1) is fixedly installed with fixed plate (2), two fixed plate (2) between fixedly installed with slide bar (3), be provided with the edge folding subassembly and positioning subassembly between main fixed frame (1) and slide bar (3), The edge folding subassembly includes first fixed frame (401), adjusting screw rod (402), edge folding roller (403), second fixed frame (404), positioning roller (405), third fixed frame (406), folding plate (407) and edge folding plate (408), first fixed frame (401) is connected in slide in the outer wall of slide bar (3), adjusting screw rod (402) is rotatably connected in the middle part of fixed plate (2), edge folding roller (403) is rotatably connected in the bottom of first fixed frame (401), second fixed frame (404) one end fixedly installed in the inner side of one end of first fixed frame (401), positioning roller (405) is rotatably connected in one end of second fixed frame (404), third fixed frame (406) is fixedly installed in the inner side of main fixed frame (1), folding plate (407) and edge folding plate (408) are fixedly installed in the top of third fixed frame (406).

2. An automatic hemming mechanism for a packaging bag according to claim 1, characterized in that: One end of adjusting screw rod (402) is rotatably connected in the inner side of first fixed frame (401), and adjusting screw rod (402) is in threaded engagement with first fixed frame (401).

3. An automatic hemming mechanism for a packaging bag according to claim 1, characterized in that: Edge folding roller (403) and positioning roller (405) are located on the upper surface of the packaging bag (6) to be processed, folding plate (407) is located at the bottom of the packaging bag (6) to be processed, and edge folding plate (408) is located at one end of the edge folding roller (403).

4. The automatic hemming mechanism for packaging bags according to claim 1, characterized in that: One end of folding plate (407) is higher than one end of edge folding plate (408).

5. The automatic bag flanging mechanism of claim 1, wherein: The positioning subassembly includes fourth fixed frame (501), fifth fixed frame (502) and positioning pressing plate (503), fourth fixed frame (501) is fixedly installed in one end of first fixed frame (401), one end of fifth fixed frame (502) is fixedly installed in one end of fourth fixed frame (501), and positioning pressing plate (503) is fixedly installed in the bottom of fifth fixed frame (502).

6. An automatic hemming mechanism for a packaging bag according to claim 5, characterized in that: Positioning pressing plate (503) is located at one end of edge folding plate (408).

7. An automatic hemming mechanism for a packaging bag according to claim 5, characterized in that: Positioning pressing plate (503) abuts against the upper surface of the packaging bag (6) to be processed, and one end of positioning pressing plate (503) is on the same straight line as the folding part of the packaging bag (6) to be processed.

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