Sealing and film cutting device for rust-proof bag production

Abstract

The utility model relates to the related technical field of rustproof bag production, in particular to a sealing and film cutting device for rustproof bag production, which comprises a sealing and film cutting machine body, an unwinding component is arranged at the sealing end of the sealing and film cutting machine body, and a guide component is arranged in the middle of the unwinding component. Through the arrangement of the base plate, the sealing film cutting machine body inclines from the reel end, part of the gravity of an anti-rust bag is counteracted through the supporting force of the inclined face, wrinkling or tearing caused by excessive self-weight falling of materials in the unwinding process is avoided, it is guaranteed that the materials are conveyed smoothly, and the first film roller, the second film roller and the third film roller form a tension adjusting path through the height difference; and the guide blocks are driven by the two-way threaded rods to transversely move in the sliding grooves, the spacing between the two sets of guide plates can be flexibly adjusted according to the width of the materials in cooperation with the limiting effect of the guide columns, a U-shaped limiting space is formed, the materials are forced to be conveyed along the center path, and the lateral deviation error is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of rustproof bag production, and in particular to a sealing and film cutting device for rustproof bag production. Background Technology

[0002] In the packaging industry, rust-proof bags are commonly used packaging materials for metal products, electronic components, and other products. Rust-proof bags need to go through processes such as guiding, sealing, and cutting after being unwound from the film roll. Therefore, a sealing and film cutting device for rust-proof bag production is particularly needed.

[0003] A device for sealing and cutting rust-proof bags, authorized by announcement number CN222646450U, includes a workbench with two conveying grooves on its top surface and a mounting platform fixed on one side of the workbench; a cutting blade disposed on one side of the mounting platform; and an exhaust assembly disposed on the top surface of the workbench for exhausting gas. A first extrusion roller, along with a second extrusion roller, presses the rust-proof bag together. A first electric push rod with a telescopic shaft then moves the second extrusion roller, expelling gas from inside the rust-proof bag and limiting and fixing the cutting area to prevent gas from entering the bag during cutting. A drive motor rotates the drive shaft, causing the drive roller to rotate, allowing the rust-proof bag to be conveyed via a conveyor belt. This facilitates the collection of cut rust-proof bags by workers and improves the efficiency of rust-proof bag production.

[0004] Because traditional rust-proof bag feeding rollers tend to cause the material to sag excessively in the middle during transport, leading to material deformation, the aforementioned device, although providing support by conveying rust-proof bags via a conveyor belt, suffers from uneven friction on the conveyor belt surface and lacks limiting components on both sides. Consequently, the material is prone to lateral displacement during transport, resulting in misalignment during subsequent cutting.

[0005] To address the aforementioned issues, a sealing and film-cutting device for the production of rust-proof bags is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a sealing and cutting device for the production of rust-proof bags, so as to solve the problem of the existing sealing and cutting devices for the production of rust-proof bags mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sealing and cutting device for producing rust-proof bags, comprising a sealing and cutting machine body, wherein an unwinding assembly is provided at one end of the sealing end of the sealing and cutting machine body, and a guide assembly is provided in the middle of the unwinding assembly;

[0008] The unwinding assembly includes a pad plate disposed at one end of the sealing end of the sealing and cutting machine body. A first side plate is welded to the top of the pad plate, and a second side plate is welded to the other top of the pad plate. A first film roller is installed between the first side plates, a second film roller is installed between the second side plates, and a third film roller is installed between the second side plates. The third film roller is disposed at one end of the second film roller and is lower than the second film roller.

[0009] Preferably, the unwinding assembly further includes an L-frame disposed at one end of the sealing and cutting machine body, a roll is mounted on one top end of the L-frame, a support plate is welded to the bottom of the end of the L-frame away from the roll, and the top of the support plate is welded to the bottom of the pad.

[0010] Preferably, the pad is an inclined plate, with its highest point welded to one end of the L-frame mounting roller, and its lowest point extending to one end of the sealing and cutting machine body and connected thereto.

[0011] Preferably, the first film roller is installed at a position lower than the roll, and the second film roller is installed at a position higher than the first film roller.

[0012] Preferably, the guide assembly includes a groove formed in the middle of the pad, side mounting plates welded to the middle of both sides of the pad, two sets of guide blocks slidably connected to the inner wall of the groove, a bidirectional threaded rod threaded to the bottom of the guide block, a guide post passing through the bottom of the guide block and slidably connected to the guide post, and two sets of guide plates provided on one side of the guide block, with the guide plates and the guide block forming a side U-shaped limiting space.

[0013] Preferably, the guide block is located between the first side plate and the second side plate.

[0014] Preferably, the bidirectional threaded rod and the guide post are mounted on both sides below the slide groove via side mounting plates.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The pad adopts an inclined plate structure, which is inclined from the roll end towards the sealing and film cutting machine body. The inclined support force offsets part of the weight of the anti-rust bag, preventing the material from falling too much due to its own weight during the unwinding process, which would cause wrinkles or tears, and ensure that the material is transported flat.

[0017] 2. The first, second, and third film rollers form a tension adjustment path through their height difference, stabilizing the material tension;

[0018] 3. The guide block moves laterally in the chute driven by a bidirectional threaded rod. With the limiting effect of the guide column, the spacing between the two sets of guide plates can be flexibly adjusted according to the material width to form a U-shaped limiting space, forcing the material to be conveyed along the central path and reducing lateral offset error. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the unwinding assembly of this utility model. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the structure of the unwinding assembly of this utility model. Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the structure of the guide component of this utility model. Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the structure of the guide component of this utility model. Figure 2 .

[0024] In the diagram: 1. Sealing and cutting machine body; 2. Unwinding assembly; 201. Pad plate; 202. First side plate; 203. Second side plate; 204. First film roller; 205. Second film roller; 206. Third film roller; 207. L-frame; 208. Roller; 209. Support plate; 3. Guide assembly; 301. Slide groove; 302. Side mounting plate; 303. Guide block; 304. Bidirectional threaded rod; 305. Guide column; 306. Guide plate. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Example

[0027] like Figure 1-3 As shown, the machine includes a sealing and cutting machine body 1. An unwinding assembly 2 is provided at one sealing end of the sealing and cutting machine body 1. A guide assembly 3 is provided in the middle of the unwinding assembly 2. The unwinding assembly 2 includes a pad 201 provided at one sealing end of the sealing and cutting machine body 1. A first side plate 202 is welded to the top of the pad 201, and a second side plate 203 is welded to the other top of the pad 201. A first film roller 204 is installed between the first side plates 202, and a second film roller 204 is installed between the second side plates 203. There is a second film roller 205, and a third film roller 206 is installed between the second side plates 203. The third film roller 206 is located at one end of the second film roller 205 and is lower than the second film roller 205. The unwinding assembly 2 also includes an L-frame 207 provided at one end of the sealing and cutting machine body 1. A roll 208 is installed at one top end of the L-frame 207. A support plate 209 is welded to the bottom of the end of the L-frame 207 away from the roll 208, and the top of the support plate 209 is welded to the bottom of the pad 201.

[0028] It should be noted that in this embodiment, the rust-proof bag roll is first installed on the roll 208. The roll 208 is fixed to one end of the sealing and cutting machine body 1 by the L frame 207, forming the unwinding starting point. After the rust-proof bag material is drawn out from the roll 208, it passes through the first film roller 204, the second film roller 205 and the third film roller 206 in sequence. The pad 201 is an inclined plate. The highest point is connected to the end of the roll 208 installed by the L frame 207, and the lowest point extends to the sealing and cutting machine body 1, forming an inclined support surface. The inclined plate design can use the weight of the material and the supporting force of the pad 201 to balance, preventing the rust-proof bag from falling and deforming due to gravity during unwinding. At the same time, it guides the material to move towards the sealing end. The L frame 207 not only supports the roll 208, but is also welded to the pad 201 through the support plate 209 to form a triangular stable structure, avoiding the device from shaking due to material tension during unwinding.

[0029] The first film roller 204 is positioned below the roll 208 and is used to initially adjust the material's droop angle. The second film roller 205 is higher than the first film roller 204 and generates traction force through the height difference to tighten the material. The third film roller 206 is lower than the second film roller 205 and is located at one end of it, further changing the material's direction so that it can be smoothly conveyed along the surface of the pad 201.

[0030] Furthermore, the first side plate 202 serves as a support structure for the first film roller 204. The two ends of the first film roller 204 are fixed to the corresponding positions of the left and right first side plates 202 respectively, ensuring that the first film roller 204 can rotate stably. The second side plate 203 simultaneously supports the second film roller 205 and the third film roller 206. An installation space for the film roller is formed between the two second side plates 203, ensuring the spacing and height difference between the film rollers.

[0031] like Figure 4 , 5 As shown, the guide assembly 3 includes a groove 301 opened in the middle of the pad 201, side mounting plates 302 welded to the middle of both sides of the pad 201, two sets of guide blocks 303 slidably connected to the inner wall of the groove 301, a bidirectional threaded rod 304 threadedly connected to the bottom of the guide block 303, a guide post 305 passing through the bottom of the guide block 303, and the guide block 303 and the guide post 305 slidably connected, and two sets of guide plates 306 are provided on one side of the guide block 303, and the guide plate 306 and the guide block 303 form a side U-shaped limiting space.

[0032] It should be noted that, in this embodiment, the core of the guide component 3 consists of two sets of guide blocks 303, the bottom of which are connected to the bidirectional threaded rod 304 by threads, and slide on the guide post 305. The bidirectional threaded rod 304 is driven by a servo motor on the side mounting plate 302. When the motor rotates forward or backward, the threads at both ends of the bidirectional threaded rod 304 rotate in opposite directions, driving the guide blocks 303 on both sides to move synchronously to the center or to the sides. Each set of guide blocks 303 has two sets of guide plates 306 on its side, forming a side U-shaped structure with the guide blocks 303, which constitutes a limiting space for the rust-proof bag material. By adjusting the spacing of the guide blocks 303, it can accommodate rust-proof bag materials of different widths, ensuring that the material remains centered during transportation and avoiding deviation.

[0033] Among them, the groove 301 in the middle of the pad 201 provides a sliding track for the guide block 303 to ensure smooth movement, and the guide post 305 passes through the guide block 303 to ensure guiding accuracy;

[0034] Furthermore, the bidirectional threaded rod 304 and the guide post 305 are provided with protective covers (not shown in the figure) to further enhance the safety and reliability of the device.

[0035] Working principle of this utility model:

[0036] Refer to the instruction manual appendix Figure 1-5 First, the rust-proof bag material is released from the roller 208. The direction is adjusted by the first film roller 204, the second film roller 205 and the third film roller 206. The pad supports the material to prevent it from falling.

[0037] Subsequently, based on the width of the rust-proof bag, the servo motor drives the bidirectional threaded rod 304 to rotate, causing the guide block 303 to move within the slide groove 301, adjusting the width of the side U-shaped limiting space so that the material is precisely limited.

[0038] Under the traction of the sealing and cutting machine body 1 (the traction process of the sealing and cutting machine body 1 is a mature technology in this field and will not be described here), the rust-proof bag moves along the pad plate 201 toward the sealing end. The guide block keeps the material conveyed in a straight line through the side U-shaped structure to avoid deviation. The film roller group, especially the second film roller 205, ensures that the material is flat and free from deformation by the tension generated by the height difference and the support of the pad plate.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing and film cutting device for rust-proof bag production, comprising a sealing and film cutting machine body (1), characterized in that: The sealing end of the sealing and cutting machine body (1) is provided with an unwinding assembly (2), and the middle part of the unwinding assembly (2) is provided with a guide assembly (3); The unwinding assembly (2) includes a pad (201) provided at one end of the sealing end of the sealing and cutting machine body (1). A first side plate (202) is welded to the top of the pad (201), and a second side plate (203) is welded to the other top of the pad (201). A first film roller (204) is installed between the first side plates (202), a second film roller (205) is installed between the second side plates (203), and a third film roller (206) is installed between the second side plates (203). The third film roller (206) is located at one end of the second film roller (205) and is lower than the second film roller (205).

2. The rust-proof bag production sealing and film cutting device according to claim 1, characterized in that: The unwinding assembly (2) also includes an L-frame (207) provided at one end of the sealing and cutting machine body (1). A roll (208) is installed at one top of the L-frame (207). A support plate (209) is welded to the bottom of the end of the L-frame (207) away from the roll (208), and the top of the support plate (209) is welded to the bottom of the pad (201).

3. The rust-proof bag production sealing and film cutting device according to claim 2, characterized in that: The pad (201) is an inclined plate, and its highest point is welded to one end of the L frame (207) where the roller (208) is installed. The lowest point of the pad (201) extends to one end of the sealing and cutting machine body (1) and is connected to the sealing and cutting machine body (1).

4. The sealing and cutting device for producing rust-proof bags according to claim 2, characterized in that: The first film roller (204) is installed below the roll (208), and the second film roller (205) is installed above the first film roller (204).

5. The rust-proof bag production sealing and film cutting device according to claim 1, characterized in that: The guide assembly (3) includes a groove (301) opened in the middle of the pad (201), side mounting plates (302) are welded to the middle of both sides of the pad (201), two sets of guide blocks (303) are slidably connected to the inner wall of the groove (301), a bidirectional threaded rod (304) is threaded to the bottom of the guide block (303), a guide post (305) is passed through the bottom of the guide block (303), and the guide block (303) is slidably connected to the guide post (305). Two sets of guide plates (306) are provided on one side of the guide block (303), and the guide plate (306) and the guide block (303) form a side U-shaped limiting space.

6. The rust-proof bag production sealing and film cutting device according to claim 5, characterized in that: The guide block (303) is located between the first side plate (202) and the second side plate (203).

7. The rust-proof bag production sealing and film cutting device according to claim 5, characterized in that: The bidirectional threaded rod (304) and guide post (305) are mounted on both sides below the slide groove (301) via side mounting plate (302).

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