Double-film-roll automatic switching film sleeving structure

Abstract

The utility model discloses an automatic switching film sleeving structure for double film rolls, which relates to the technical field of packaging and comprises a worktable, a plurality of supporting legs are arranged at the bottom of the worktable, a mounting seat is fixedly connected to the top of the worktable, a base is fixedly erected and mounted at the top of the worktable, a conveying belt is mounted in the base, and the conveying belt is driven by a driving motor. The double-film-roll film changing mechanism comprises a rotating seat, a first motor, an unwinding roller, a second motor, a slope table and a first mounting frame, a rotating shaft is arranged on one side of the rotating seat, the rotating shaft penetrates through the mounting seat and is rotationally connected with the mounting seat, and the first motor is fixedly mounted on one side of the mounting seat through a mounting part. The output end of the first motor is connected with the shaft end of the rotating shaft. According to the utility model, different membrane materials can be quickly and conveniently replaced, so that the working pause time of equipment can be greatly shortened, the production and processing efficiency of products is effectively improved, and the practicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and in particular to a double-film roll automatic switching film-coating structure. Background Technology

[0002] A bag-making machine is a specialized piece of machinery used to produce various types of plastic bags. It uses processes such as heating, pressing, and cutting to shape plastic film into bags of various sizes. Bag-making machines are mainly used in the plastic packaging industry to produce shopping bags, garbage bags, food bags, and other plastic packaging bags. A film roll mechanism is required to power the bag-making machine and unwind the film material needed for bag making.

[0003] However, in some production lines, due to the large variety of products being produced, it is necessary to frequently change different membrane materials. The existing membrane roll mechanism is difficult to complete the membrane material replacement work quickly and conveniently. Generally, the original membrane material is removed first, and then the membrane material to be replaced is installed. Only in this way can the different membrane materials be replaced. This process requires a long time to stop work, which makes the replacement of different membrane materials time-consuming, labor-intensive, and inefficient. It also greatly reduces the production and processing efficiency of the products. The structure needs to be improved. Utility Model Content

[0004] This utility model discloses an automatic film-changing structure for dual film rolls. By incorporating a dual film roll changing mechanism, if different film materials need to be changed during subsequent operations, the two required film materials can be pre-loaded onto the two unwinding rollers and positioned by caps. This allows for processing of one type of film material first. When a different film material needs to be changed, the equipment is paused, a cylinder is activated, and the connecting plate and cutter are moved downwards to cut the original film material. Then, the first motor operates, rotating the rotating seat 180 degrees, which in turn rotates the two unwinding rollers to adjust their positions, allowing the original film material to be placed in the correct position. Above, another type of film material is located below. Then, the corresponding second motor is started, which, in conjunction with the first and second gears, drives the unwinding roller to unwind the second type of film material. The unwound film material will contact the inclined platform due to gravity until the bottom of the second type of film material contacts the inclined platform and slides down onto the conveyor belt through the guide of the inclined platform. The conveyor belt transports it to the equipment inlet. The equipment is then restarted, which can quickly and conveniently complete the replacement between different film materials without removing the original film material and installing the new film material. This saves time and effort and can greatly reduce equipment downtime. Therefore, it can effectively improve the production and processing efficiency of the product. In summary, the problems in the background technology are solved.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses an automatic switching film-coating structure for dual film rolls, including a workbench. The bottom of the workbench is provided with multiple support legs, and the top of the workbench is fixedly connected to a mounting base. A base is fixedly mounted on the top of the workbench, and a conveyor belt is installed inside the base. The conveyor belt is driven by a drive motor.

[0007] A dual-film roll changing mechanism includes a rotating base, a first motor, an unwinding roller, a second motor, an inclined platform, and a first mounting frame. A rotating shaft is located on one side of the rotating base, passing through and rotatably connected to the mounting base. The first motor is fixedly mounted to one side of the mounting base via a mounting component, and its output end is connected to the shaft end. Two unwinding rollers and two second motors are provided, each rotatably mounted on the side of the rotating base away from the mounting base. One end of each unwinding roller is screwed with a cap. Different film rolls are respectively fitted onto the outside of the two unwinding rollers, which are installed in an up-down configuration. The second motor is fixedly installed on the top and bottom of the rotating base respectively. The output end of the second motor is fixedly connected to the first gear. The shaft end of the unwinding roller is fixedly connected to the second gear. The first gear and the second gear mesh. The inclined platform is fixedly mounted on the top of the workbench. The inclined platform is located directly below the unwinding roller. The upper surface of the inclined platform is inclined towards the upper surface of the conveyor belt. The inclined platform is close to one side of the base. The first mounting frame is fixedly installed on the upper inclined surface of the inclined platform. The top of the first mounting frame is fixedly mounted with a cylinder in a through-type manner. The telescopic end of the cylinder is fixedly connected to a connecting plate. The bottom of the connecting plate is fixedly connected to a cutter.

[0008] A flattening and wrinkle-removing mechanism is located at the top of the worktable and away from the inclined table.

[0009] Furthermore, an annular groove is provided on one side of the mounting base, and one side of the rotating base is slidably connected to the groove through multiple sliding connectors.

[0010] Furthermore, a first guide plate is fixedly installed inside the base, and the first guide plate is located between the inclined platform and the upper surface of the conveyor belt.

[0011] Furthermore, both the upper inclined surface of the inclined platform and the upper inclined surface of the first guide plate are smooth surfaces, and the width of the first guide plate is greater than the width of the inclined platform.

[0012] Furthermore, the flattening and wrinkle-removing mechanism includes a second mounting frame, pressure rollers, and a third motor. The second mounting frame is fixedly mounted on the top of the worktable and is located on the side of the conveyor belt away from the inclined platform. There are two pressure rollers, both of which are rotatably mounted inside the second mounting frame. The two pressure rollers are close to each other, and the shaft ends of the two pressure rollers are meshed by two third gears. The third motor is fixedly mounted on one side of the second mounting frame through a mounting component, and the output end of the third motor is connected to the shaft end of one of the pressure rollers.

[0013] Furthermore, two mounting blocks are fixedly connected to the side of the base away from the inclined platform, and a second guide plate is fixedly installed between the two mounting blocks. The second guide plate is located between the conveyor belt and the two pressure rollers.

[0014] Furthermore, the outer fixed sleeve of the pressure roller is equipped with an anti-slip sleeve, which is made of rubber material.

[0015] The present invention has the following advantages over the prior art:

[0016] 1. This technical solution features a dual-membrane roll changing mechanism, which allows for quick and convenient replacement of different membrane materials without removing the original membrane material and installing the new one. This makes membrane material replacement time-saving, labor-saving, and highly efficient, thereby significantly reducing equipment downtime and effectively improving product production efficiency.

[0017] 2. This technical solution incorporates a flattening and wrinkle-removing mechanism, which allows the film material to be effectively traction-fed and flattened before entering the equipment inlet. This effectively prevents the film material from being wrinkled when it enters the equipment inlet, thus avoiding affecting the normal processing of subsequent products and improving the quality of subsequent production and processing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0021] Figure 3This is a schematic diagram of the exploded structure of the rotating seat of this utility model.

[0022] Figure 4 This is an exploded view of the unwinding roller installation structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the installation structure of the second guide inclined plate of this utility model;

[0024] Figure 6 This is a schematic diagram of the exploded structure of the pressure roller installation of this utility model.

[0025] In the diagram: 1. Workbench; 2. Mounting base; 3. Base; 4. Conveyor belt; 5. Double film roll changing mechanism; 501. Rotating seat; 502. First motor; 503. Unwinding roller; 504. Second motor; 505. Inclined platform; 506. First mounting frame; 507. Rotating shaft; 508. Cover; 509. Film roll; 510. First gear; 511. Second gear; 512. Cylinder; 513. Connecting plate; 514. Cutter; 6. Flattening and wrinkle removal mechanism; 601. Second mounting frame; 602. Pressure roller; 603. Third motor; 604. Third gear; 605. Anti-slip sleeve; 7. Slide groove; 8. First guide inclined plate; 9. Mounting block; 10. Second guide inclined plate. Detailed Implementation

[0026] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0029] Reference Figures 1-5An automatic film-changing structure for dual film rolls includes a worktable 1 with multiple support legs at its bottom, a mounting base 2 fixedly connected to the top of the worktable 1, and a base 3 fixedly mounted on the top of the worktable 1. A conveyor belt 4 is installed inside the base 3 and is driven by a drive motor. A dual film roll changing mechanism 5 includes a rotating base 501, a first motor 502, an unwinding roller 503, a second motor 504, an inclined platform 505, and a first mounting frame 506. A rotating shaft 507 is provided on one side of the base 501. The rotating shaft 507 passes through the mounting base 2 and is rotatably connected to the mounting base 2. The first motor 502 is fixedly installed on one side of the mounting base 2 by a mounting component, and the output end of the first motor 502 is connected to the shaft end of the rotating shaft 507. Two unwinding rollers 503 and two second motors 504 are provided. The two unwinding rollers 503 are rotatably installed on the side of the rotating base 501 away from the mounting base 2. One end of the unwinding roller 503 is screwed with a cover 508. The exterior of the two unwinding rollers 503... Different film rolls 509 are respectively mounted on the workbench 1. Two unwinding rollers 503 are installed in an up-down configuration. Two second motors 504 are fixedly mounted on the top and bottom of the rotating base 501, respectively. The output end of the second motor 504 is fixedly connected to a first gear 510, and the shaft end of the unwinding roller 503 is fixedly connected to a second gear 511. The first gear 510 and the second gear 511 mesh. An inclined platform 505 is fixedly mounted on the top of the workbench 1, and the inclined platform 505 is located directly below the unwinding roller 503. The upper surface of the inclined table 505 is inclined towards the upper surface of the conveyor belt 4. The inclined table 505 is close to one side of the base 3. The first mounting bracket 506 is fixedly installed on the upper inclined surface of the inclined table 505. The top of the first mounting bracket 506 is fixedly installed with a cylinder 512 through it. The telescopic end of the cylinder 512 is fixedly connected to a connecting plate 513. The bottom of the connecting plate 513 is fixedly connected to a cutter 514. The flattening and wrinkle removal mechanism 6 is located on the top of the workbench 1 and away from the inclined table 505.

[0030] An annular groove 7 is provided on one side of the mounting base 2, and one side of the rotating base 501 is slidably connected to the groove 7 through multiple sliding connectors; a first guide plate 8 is fixedly installed inside the base 3, and the first guide plate 8 is located between the inclined platform 505 and the upper surface of the conveyor belt 4; the upper inclined surface of the inclined platform 505 and the upper inclined surface of the first guide plate 8 are both smooth surfaces, and the width of the first guide plate 8 is greater than the width of the inclined platform 505.

[0031] In the specific implementation process, if different membrane materials need to be changed during operation, the two required membrane materials can be pre-installed on the two unwinding rollers 503 and limited by the cap 508. This allows for processing of one type of membrane material first. When a different membrane material needs to be changed, the equipment can be paused, the cylinder 512 activated, and the connecting plate 513 and cutter 514 moved downwards to cut the original membrane material. Then, the first motor 502 operates, rotating the rotating seat 501 180 degrees, thereby rotating and repositioning the two unwinding rollers 503, allowing the original membrane material to be cut. With one type of film material at the top and another type at the bottom, the corresponding second motor 504 is started, cooperating with the first gear 510 and the second gear 511 to drive the unwinding roller 503 to unwind the second type of film material. The unwound film material will contact the inclined table 505 due to gravity until the bottom of the second type of film material contacts the inclined table 505 and slides down onto the conveyor belt 4 through the guide of the inclined table 505. The conveyor belt 4 then transports it to the equipment inlet. The equipment is restarted, and the replacement between different film materials can be completed quickly and conveniently without removing the original film material and installing the new film material, saving time and effort and greatly reducing equipment downtime.

[0032] Among them, the sliding connector can improve the stability of the rotary seat 501 during rotation and the overall stability;

[0033] Among them, the first guide plate 8 can help guide the film material from the inclined table 505 to the upper surface of the conveyor belt 4;

[0034] The upper inclined surfaces of the inclined platform 505 and the first guide plate 8 are smooth to reduce the friction between them and the membrane material, thereby facilitating the sliding movement of the membrane material on the inclined platform 505 and the first guide plate 8. The width of the first guide plate 8 is greater than the width of the inclined platform 505 to ensure that the first guide plate 8 can catch the membrane material sliding down from the inclined platform 505. Specific Implementation Example 2:

[0036] Reference Figure 1 and Figure 6 In a preferred embodiment, the flattening and wrinkle-removing mechanism 6 includes a second mounting frame 601, a pressure roller 602, and a third motor 603. The second mounting frame 601 is fixedly mounted on the top of the workbench 1 and is located on the side of the conveyor belt 4 away from the inclined platform 505. There are two pressure rollers 602, both of which are rotatably mounted inside the second mounting frame 601. The two pressure rollers 602 are close to each other, and the shaft ends of the two pressure rollers 602 are meshed by two third gears 604. The third motor 603 is fixedly mounted on one side of the second mounting frame 601 by a mounting component, and the output end of the third motor 603 is connected to the shaft end of one of the pressure rollers 602.

[0037] Two mounting blocks 9 are fixedly connected to the side of the base 3 away from the inclined platform 505. A second guide plate 10 is fixedly installed between the two mounting blocks 9. The second guide plate 10 is located between the conveyor belt 4 and the two pressure rollers 602. An anti-slip sleeve 605 is fixedly fitted on the outside of the pressure rollers 602. The anti-slip sleeve 605 is made of rubber material.

[0038] In the specific implementation process, before the film material enters the equipment inlet, it can be conveyed to the space between two pressure rollers 602 by the conveyor belt 4. The third motor 603 works to drive one of the pressure rollers 602 to rotate. The rotation of one pressure roller 602 can cooperate with the two third gears 604 to synchronously drive the other pressure roller 602 to rotate. Therefore, when the film material enters the space between the two pressure rollers 602, it can be effectively traction fed and flattened and wrinkle removed by the two rotating pressure rollers 602. This can effectively prevent the film material from being wrinkled when it enters the equipment inlet, which would affect the normal processing of subsequent products.

[0039] The second guide plate 10 can help to accurately guide and transport the film material on the conveyor belt 4 to the vicinity of the gap between the two pressure rollers 602, ensuring that the film material can be pressed, pulled, transported, and flattened and wrinkled by the two pressure rollers 602.

[0040] The protective sleeve on the outer fixed set of the pressure roller 602 is to increase the friction between the pressure roller 602 and the film material, so as to facilitate the traction and movement of the film material and the elastic flattening and wrinkle removal process.

[0041] It is understood that a guide roller can be added between the cutter 514 and the inclined table 505. This guide roller can prevent the cutter 514 from accidentally cutting or obstructing the unwinding and movement of the film material when it is not working. This is well known to those skilled in the art, so it will not be described in detail here.

[0042] Working principle: During operation, if different film materials need to be changed, the two required film materials can be pre-installed on the two unwinding rollers 503 and limited by the cap 508. This allows for processing of one type of film material first. When a different film material needs to be changed, the equipment can be paused, the cylinder 512 activated, and the connecting plate 513 and cutter 514 moved downwards to cut the original film material. Then, the first motor 502 operates, rotating the rotating seat 501 180 degrees, thereby rotating and repositioning the two unwinding rollers 503, allowing the original film material to be cut. With one type of membrane material above and the other below, the corresponding second motor 504 is started, cooperating with the first gear 510 and the second gear 511 to drive the unwinding roller 503 to unwind the second type of membrane material. The unwound membrane material will contact the inclined table 505 due to gravity until the bottom of the second type of membrane material contacts the inclined table 505 and slides down onto the conveyor belt 4 through the guide of the inclined table 505. The conveyor belt 4 will then transport it to the equipment inlet. The equipment can be restarted to quickly and conveniently complete the replacement between different membrane materials without removing the original membrane material and installing the new membrane material, saving time and effort and greatly reducing equipment downtime.

[0043] Furthermore, before the film material enters the equipment inlet, it can be conveyed to the space between two pressure rollers 602 via conveyor belt 4. The third motor 603 operates, driving one of the pressure rollers 602 to rotate. The rotation of one pressure roller 602 can cooperate with two third gears 604 to synchronously drive the other pressure roller 602 to rotate. Therefore, when the film material enters the space between the two pressure rollers 602, it can be effectively traction-fed and flattened and wrinkle-removed by the two rotating pressure rollers 602. This can effectively prevent the film material from being wrinkled when it enters the equipment inlet, thus avoiding affecting the normal processing of subsequent products.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A double film roll automatic switching sleeve film structure comprising a workbench (1), characterized in that: The bottom of the workbench (1) is provided with multiple support legs, the top of the workbench (1) is fixedly connected with a mounting base (2), the top of the workbench (1) is fixedly mounted with a base (3), the inside of the base (3) is equipped with a conveyor belt (4), and the conveyor belt (4) is driven by a drive motor. A dual-film roll changing mechanism (5) includes a rotating base (501), a first motor (502), an unwinding roller (503), a second motor (504), an inclined platform (505), and a first mounting bracket (506). A rotating shaft (507) is provided on one side of the rotating base (501). The rotating shaft (507) passes through the mounting base (2) and is rotatably connected to it. The first motor (502) is fixedly mounted on one side of the mounting base (2) via a mounting component. The output end of the first motor (502) is connected to the shaft end of the rotating shaft (507). Two unwinding rollers (503) and two motors (504) are provided. Both unwinding rollers (503) are rotatably mounted on the rotating base (501) on the side away from the mounting base (2). One end of each unwinding roller (503) is screwed with a cap (508). Different film rolls (509) are respectively fitted onto the outside of the two unwinding rollers (503). The two unwinding rollers (503) are mounted in an up-down configuration. In this design, two second motors (504) are fixedly mounted on the top and bottom of the rotating base (501), respectively. The output end of the second motor (504) is fixedly connected to a first gear (510), and the shaft end of the unwinding roller (503) is fixedly connected to a second gear (511). The first gear (510) meshes with the second gear (511). The inclined platform (505) is fixedly mounted on the top of the workbench (1), and the inclined platform (505) is located on the front of the unwinding roller (503). Below, the upper surface of the inclined platform (505) is inclined towards the upper surface of the conveyor belt (4). The inclined platform (505) is close to one side of the base (3). The first mounting bracket (506) is fixedly installed on the upper inclined surface of the inclined platform (505). A cylinder (512) is fixedly installed through the top of the first mounting bracket (506). A connecting plate (513) is fixedly connected to the telescopic end of the cylinder (512). A cutter (514) is fixedly connected to the bottom of the connecting plate (513). A flattening and wrinkle-removing mechanism (6) is located at the top of the worktable (1) and away from the inclined table (505).

2. The dual-film roll automatic switching sleeve structure according to claim 1, characterized in that: The mounting base (2) has an annular groove (7) on one side, and the rotating base (501) is slidably connected to the groove (7) on one side through multiple sliding connectors.

3. The dual-film roll automatic switching sleeve structure according to claim 1, characterized in that: The base (3) is fixedly installed with a first guide plate (8), which is located between the inclined platform (505) and the upper surface of the conveyor belt (4).

4. The automatic switching film-coating structure for dual film rolls according to claim 3, characterized in that: The upper inclined surface of the inclined platform (505) and the upper inclined surface of the first guide plate (8) are both smooth surfaces, and the width of the first guide plate (8) is greater than the width of the inclined platform (505).

5. The dual-film roll automatic switching sleeve structure according to claim 1, characterized in that: The flattening and wrinkle-removing mechanism (6) includes a second mounting frame (601), a pressure roller (602), and a third motor (603). The second mounting frame (601) is fixedly mounted on the top of the workbench (1) and is located on the side of the conveyor belt (4) away from the inclined platform (505). There are two pressure rollers (602), and both pressure rollers (602) are rotatably mounted inside the second mounting frame (601). The two pressure rollers (602) are close to each other, and the shaft ends of the two pressure rollers (602) are meshed by two third gears (604). The third motor (603) is fixedly mounted on one side of the second mounting frame (601) by a mounting component, and the output end of the third motor (603) is connected to the shaft end of one of the pressure rollers (602).

6. The automatic switching film-coating structure for dual film rolls according to claim 5, characterized in that: The base (3) is fixedly connected to two mounting blocks (9) on the side away from the inclined platform (505). A second guide plate (10) is fixedly installed between the two mounting blocks (9). The second guide plate (10) is located between the conveyor belt (4) and the two pressure rollers (602).

7. The automatic switching film-coating structure for dual film rolls according to claim 5, characterized in that: The pressure roller (602) is externally fixedly fitted with an anti-slip sleeve (605), which is made of rubber material.

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