An inner film folding mechanism

Abstract

The utility model discloses a kind of inner membrane folding mechanism, belong to packaging technical field。Including frame, the one end of frame is equipped with roll film, the other end is equipped with output roller, still be equipped with mounting plate on the frame, the mounting plate is between roll film and output roller;The mounting plate is installed in the both sides of frame, the mounting plate between with locating plate group and wing plate assembly, the wing plate assembly is symmetrically arranged in the both sides of locating plate group, the roll film is folded after passing through locating plate group and wing plate assembly after passing through roller group, subsequently output from output roller.This utility model entire process only needs to be manually pulled the joint of roll film through locating plate group and wing plate assembly at the beginning, then drive is connected to output roller, roll film is automatically folded under the action of locating plate group and wing plate assembly and then output, can smoothly send into woven bag with membrane, to facilitate the operation of subsequent station.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to an inner film folding mechanism. Background Technology

[0002] In the packaging industry, woven bags are widely used for packaging powdery and granular materials such as fertilizers, grains, and chemical raw materials due to their high strength, low cost, and ease of transportation. To prevent the contents from getting damp, leaking, or reacting with the external environment, a plastic inner film (such as polyethylene film) is usually placed inside the woven bag. Generally, the folded diameter of the inner film must be slightly larger than the folded diameter of the woven bag to prevent the inner film from tearing when the material is poured in. Therefore, the inner film must be folded before being fed into the woven bag. Especially for M-shaped woven bags, the space for the inner film to enter is narrower, and the inner film needs to be folded even narrower to be fed into the woven bag smoothly. If a folding machine with ordinary inner film folding at both ends is used, the cut of the inner film will not be straight. At the same time, the inner film should protrude at the opening end of the woven bag to facilitate subsequent sealing operations.

[0003] In traditional processes, the insertion of the inner film is primarily done manually: operators must manually stretch the pre-cut inner film and stuff it into the woven bag, ensuring it fits snugly against the bag wall. This process is not only labor-intensive and inefficient, but also presents the following problems: First, manual operation makes it difficult to guarantee the consistent position of the inner film within the bag, easily leading to wrinkles, misalignment, or even damage, affecting subsequent filling and sealing quality; second, with the increasing automation of packaging, manual film insertion has become a bottleneck in the entire production line, hindering the improvement of overall production efficiency; and third, manual operation poses hygiene risks, especially in industries such as food and pharmaceuticals, making it difficult to meet clean production requirements.

[0004] Therefore, it is necessary to provide an inner membrane folding mechanism to solve the above problems. Utility Model Content

[0005] Based on the aforementioned problems in the existing technology, the purpose of this utility model is to provide an inner membrane folding mechanism to solve the problems mentioned in the background technology.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an inner film folding mechanism, including a frame, a roll film is installed at one end of the frame and an output roller is installed at the other end, and an mounting plate is also installed on the frame, the mounting plate being located between the roll film and the output roller; The mounting plates are installed on both sides of the frame, and there are positioning plate groups and wing plate assemblies between the mounting plates. The wing plate assemblies are symmetrically arranged on both sides of the positioning plate group. The film roll passes through the roller group, is folded by the positioning plate group and the wing plate assembly, and is then output from the output roller.

[0007] Furthermore, the mounting plates have an upper crossbeam and a lower crossbeam, the positioning plate assembly is slidably mounted on the upper crossbeam, the wing plate assembly is slidably mounted on the lower crossbeam, and both the positioning plate assembly and the wing plate assembly are located between the upper crossbeam and the lower crossbeam.

[0008] Furthermore, the positioning plate assembly has a center plate, an adjusting plate, studs, and an inner support rod. The center plate has a protrusion protruding upward from its center. The studs are installed at both ends of the protrusion and the adjusting plate. The lower surface of the adjusting plate is located on the upper surface of the upper crossbeam. A slider is slidably connected inside the upper crossbeam. The adjusting plate is installed on the slider by hexagonal socket screws. The inner support rod is fixedly connected to the end face of the center plate near the film roll. The inner support rod is located on both sides of the center plate, and the connection between the inner support rod and the center plate is on the same plane.

[0009] Furthermore, the wing plate assembly has a sliding plate and an outer support rod, the outer support rod being fixedly connected to the end face of the sliding plate near the film roll, and the connection between the outer support rod and the sliding plate being in the same plane as the side of the sliding plate near the center plate; A slider is slidably connected inside the lower crossbeam. The lower surface of the slider is located on the upper surface of the lower crossbeam, and the slider is fixedly connected to the slider by an internal hexagon screw.

[0010] Furthermore, one end of the sliding plate is located above the center plate.

[0011] Furthermore, the free end of the outer strut is located outside the free end of the inner strut and is higher than the inner strut.

[0012] The beneficial effects of this utility model are as follows: The inner film folding mechanism provided by this utility model, by setting a positioning plate group and a wing plate assembly, enables the roll film to be automatically folded after passing through it, and then sent out from the output roller. The whole process only requires manually pulling the joint of the roll film through the positioning plate group and the wing plate assembly at the beginning, and then connecting the drive to the output roller. The roll film is automatically folded and output under the action of the positioning plate group and the wing plate assembly, which can smoothly send the film into the woven bag to facilitate the operation of subsequent work stations. By sliding the positioning plate assembly and wing plate assembly onto the corresponding crossbeam, the folding size of the roll film can be changed, thereby improving the versatility of the mechanism and enabling precise control over its folding accuracy.

[0013] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0014] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the overall tail section of this utility model; Figure 3 For the present utility model Figure 2 Enlarged diagram of area A in the middle; Figure 4 This is a schematic diagram of the positioning plate assembly of this utility model; Figure 5 This is a schematic diagram of the wing plate assembly of this utility model; Figure 6 This is a schematic diagram of the film winding position of this utility model; Figure 7 For the present utility model Figure 6 Enlarged diagram of area B in the middle; The following are the labeling elements in the figure: 1. Frame; 2. Film roll; 3. Roller assembly; 4. Mounting plate; 5. Upper crossbeam; 6. Lower crossbeam; 7. Positioning plate assembly; 71. Center plate; 711. Protrusion; 72. Adjusting plate; 73. Stud; 74. Inner support rod; 8. Wing plate assembly; 81. Sliding plate; 82. Outer support rod; 9. Output roller. Detailed Implementation

[0015] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0017] like Figure 1-7 As shown, the present invention provides a technical solution: an inner film folding mechanism, including a frame 1, a roll film 2 is installed at one end of the frame 1, an output roller 9 is installed at the other end, and an mounting plate 4 is also installed on the frame 1, the mounting plate 4 being located between the roll film 2 and the output roller 9; Mounting plates 4 are installed on both sides of frame 1. Positioning plate group 7 and wing plate assembly 8 are located between mounting plates 4. Wing plate assembly 8 is symmetrically arranged on both sides of positioning plate group 7. After the roll film 2 passes through roller group 3, it is folded by positioning plate group 7 and wing plate assembly 8, and then output from output roller 9.

[0018] There are an upper crossbeam 5 and a lower crossbeam 6 between the mounting plates 4. The positioning plate assembly 7 is slidably mounted on the upper crossbeam 5, and the wing plate assembly 8 is slidably mounted on the lower crossbeam 6. Both the positioning plate assembly 7 and the wing plate assembly 8 are located between the upper crossbeam 5 and the lower crossbeam 6.

[0019] The positioning plate assembly 7 has a center plate 71, an adjusting plate 72, a stud 73, and an inner support rod 74. The center plate 71 has a protrusion 711 protruding upward from its center. The stud 73 is installed at both ends of the protrusion 711 and the adjusting plate 72. The lower surface of the adjusting plate 72 is located on the upper surface of the upper crossbeam 5. A slider is slidably connected inside the upper crossbeam 5. The adjusting plate 72 is installed on the slider by an internal hexagon screw. The inner support rod 74 is fixedly connected to the end face of the center plate 71 near the roll film 2. The inner support rod 74 is located on both sides of the center plate 71, and the connection between the inner support rod 74 and the center plate 71 is on the same plane.

[0020] The wing plate assembly 8 has a sliding plate 81 and an outer support rod 82. The outer support rod 82 is fixedly connected to the end face of the sliding plate 81 near the roll film 2. The connection between the outer support rod 82 and the sliding plate 81 is on the same plane as the side of the sliding plate 81 near the center plate 71. A slider is slidably connected inside the lower crossbeam 6. The lower surface of the sliding plate 81 is located on the upper surface of the lower crossbeam 6. The sliding plate 81 is fixedly connected to the slider by an internal hexagon screw.

[0021] One end of the sliding plate 81 is located above the center plate 71.

[0022] The free end of the outer strut 82 is located outside the free end of the inner strut 74 and is higher than the inner strut 74.

[0023] In one embodiment, the mechanism works as follows Specifically, the stud 73 is installed on the adjusting plate 72. After the adjusting plate 72 is adjusted to the designated position, it is placed on the upper crossbeam 5 and fixedly connected to the slider on the upper crossbeam 5 by the hexagon socket bolt. At this time, the upper crossbeam 5 is located between the two studs 73. The center plate 71 is installed at the bottom of the stud 73. Then the stud 73 is rotated. At this time, the center plate 71 is installed below the adjusting plate 72. The slider makes the positioning plate assembly 7 slide on the upper crossbeam 5. When the positioning plate assembly 7 reaches the designated position, the hexagon socket bolt is tightened so that the lower surface of the adjusting plate 72 and the upper surface of the upper crossbeam 5 abut against each other, so that the positioning plate assembly 7 is fixed on the upper crossbeam 5. Two sliding plates 81 are symmetrically installed on the lower crossbeam 6, so that the sliding plates 81 are located on both sides of the center plate 71. The sliding plates 81 are fixed to the slider on the lower crossbeam 6 by means of hex bolts. After sliding the sliding plates 81 so that one end of the sliding plates 81 is above the center plate 71, the hex bolts are tightened. At this time, the lower surface of the sliding plates 81 abuts against the upper surface of the lower crossbeam 6, so that the wing plate assembly 8 is fixed on the lower crossbeam 6. Locate the membrane joint in the roll 2, install the membrane winding roller assembly 3, and pass it through the gap between the bottom of the center plate 71 and the lower crossbeam 6. Then, unfold both ends of the roll 2 from the outside to the inside through the inner support rod 74. Subsequently, the unfolded roll 2 passes through the gap between the center plate 71 and the sliding plate 81. After unfolding the roll 2, the roll 2 covers both the sliding plate 81 and the outer support rod 82. Continue to pull the roll 2, which has passed through the positioning plate assembly 7 and the wing plate assembly 8, forward until it enters the output roller 9. At this time, the corresponding drive device can drive the output roller 9 to rotate. Thus, under the intervention of the positioning plate assembly 7 and the wing plate assembly 8, the roll 2 is folded into the required shape and sent out from the output roller 9.

[0024] In summary, this mechanism, equipped with positioning plate group 7 and wing plate assembly 8, enables the roll film 2 to automatically fold after passing through it and then be fed out from the output roller 9. The entire process only requires manually pulling the joint of the roll film 2 through the positioning plate group 7 and wing plate assembly 8 at the beginning, and then connecting the drive to the output roller 9. Under the action of positioning plate group 7 and wing plate assembly 8, the roll film 2 is automatically folded and output, which can smoothly feed the film into the woven bag to facilitate the operation of subsequent work stations. By sliding the positioning plate assembly 7 and the wing plate assembly 8 onto the corresponding crossbeams, the folding size of the roll film 2 can be changed, thereby improving the versatility of the mechanism and enabling precise control over its folding accuracy.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An inner membrane folding mechanism, characterized in that: Includes a frame (1), one end of which is fitted with a roll film (2) and the other end with an output roller (9). A mounting plate (4) is also mounted on the frame (1), and the mounting plate (4) is located between the roll film (2) and the output roller (9). The mounting plate (4) is mounted on both sides of the frame (1). The mounting plate (4) has a positioning plate group (7) and a wing plate assembly (8) between it. The wing plate assembly (8) is symmetrically arranged on both sides of the positioning plate group (7). The roll film (2) passes through the roller group (3) and is folded by the positioning plate group (7) and the wing plate assembly (8), and then output from the output roller (9).

2. The inner membrane folding mechanism according to claim 1, characterized in that: The mounting plates (4) have an upper crossbeam (5) and a lower crossbeam (6) between them. The positioning plate assembly (7) is slidably mounted on the upper crossbeam (5), and the wing plate assembly (8) is slidably mounted on the lower crossbeam (6). The positioning plate assembly (7) and the wing plate assembly (8) are both located between the upper crossbeam (5) and the lower crossbeam (6).

3. The inner membrane folding mechanism according to claim 2, characterized in that: The positioning plate assembly (7) has a center plate (71), an adjusting plate (72), a stud (73) and an inner support rod (74). The center plate (71) has a protrusion (711) protruding upward from its center. The stud (73) is installed at both ends of the protrusion (711) and the adjusting plate (72). The lower surface of the adjusting plate (72) is located on the upper surface of the upper crossbeam (5). A slider is slidably connected inside the upper crossbeam (5). The adjusting plate (72) is installed on the slider by an internal hexagon screw. The inner support rod (74) is fixedly connected to the end face of the center plate (71) near the roll film (2). The inner support rod (74) is located on both sides of the center plate (71), and the connection between the inner support rod (74) and the center plate (71) is on the same plane.

4. The inner membrane folding mechanism according to claim 3, characterized in that: The wing assembly (8) has a sliding plate (81) and an outer support rod (82). The outer support rod (82) is fixedly connected to the end face of the sliding plate (81) near the roll film (2). The connection between the outer support rod (82) and the sliding plate (81) is on the same plane as the side of the sliding plate (81) near the center plate (71). A slider is slidably connected inside the lower crossbeam (6), and the lower surface of the sliding plate (81) is located on the upper surface of the lower crossbeam (6). The sliding plate (81) is fixedly connected to the slider by an internal hexagon screw.

5. The inner membrane folding mechanism according to claim 4, characterized in that: One end of the sliding plate (81) is located above the center plate (71).

6. The inner membrane folding mechanism according to claim 5, characterized in that: The free end of the outer strut (82) is located outside the free end of the inner strut (74) and is higher than the inner strut (74).

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