Film feeding device of tube film machine

Abstract

The utility model relates to a film feeding device of a tube film machine, and aims to solve the problems that most of limiting rings on the surface of an existing film feeding compression roller are manually adjusted to adapt to plastic films with different widths, however, errors exist in manual adjustment, so that the plastic films still have the deviation possibility in the conveying process, and the production efficiency is high. The technical problem that the machining efficiency is reduced due to the fact that the limiting rings on the surfaces of the film feeding compression rollers are relatively independent and need to be adjusted one by one during adjustment in the prior art is solved, and the film barrel machine comprises a film barrel machine body, and a fixing frame is arranged on one side of the film barrel machine body. And accordingly, a set of threaded blocks on the surfaces of the positive and negative lead screws are driven to get away from or get close to each other, the distance between a set of limiting plates is adjusted, plastic film winding drums with different widths can be clamped in a matched mode conveniently, meanwhile, the auxiliary mechanism can be effectively driven to conduct adjustment through position adjustment of the limiting plates, and the adjusted auxiliary mechanism can conduct centering deviation prevention on plastic films conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of tube film machines, in particular to a film feeding device of a tube film machine. Background Art

[0002] The tube film packaging machine is an automated mechanical equipment used for bag making and packaging. It uses heat-sealed packaging materials (such as plastic film, etc.) for packaging, automates the production of bag making, production, sealing, separation, counting and other stages, and improves production efficiency and packaging quality.

[0003] The film feeding mechanism of the tube film packaging machine includes a plastic film roll limiting device, a film feeding roller and a plastic film transmission drive device. Generally, a limiting ring is required on the surface of the film feeding roller to prevent the plastic film from deflecting and wrinkling during transmission.

[0004] Most of the existing limit rings on the surface of the film feeding roller are adjusted manually to adapt to plastic films of different widths. However, there are errors in manual adjustment, which makes it possible for the plastic film to shift during the transmission process. At the same time, the limit rings on the surface of each film feeding roller are relatively independent. During adjustment, the limit rings on the surface of each film feeding roller need to be adjusted one by one, which reduces the processing efficiency. In view of this, we propose a film feeding device for a drum film machine. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art, meet actual needs, and provide a film feeding device for a drum film machine to solve the problem that most of the existing limiting rings on the surface of the film feeding roller are manually adjusted to adapt to plastic films of different widths. However, there are errors in the manual adjustment, which makes it possible for the plastic film to shift during the transmission process. At the same time, the limiting rings on the surface of each film feeding roller are relatively independent. During adjustment, the limiting rings on the surface of each film feeding roller need to be adjusted one by one, which reduces the technical problem of processing efficiency.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a film feeding device of a tube film machine is designed, including a tube film machine body, a fixing frame is provided on one side of the tube film machine body, a limiting mechanism is provided inside the fixing frame, a plastic film roll is clamped inside the limiting mechanism, a pressing roller assembly is provided on the left side of the plastic film roll, and an auxiliary mechanism is provided on the surface of the pressing roller assembly;

[0007] The limiting mechanism includes positive and negative screw rods, which are mounted on the inner side of the right end of the fixing frame, the ends of the positive and negative screw rods are connected to motors, a group of threaded blocks are symmetrically sleeved on the surface of the positive and negative screw rods, the surface of the threaded blocks is connected to a limiting plate, and a limiting block is provided on the inner side of the limiting plate.

[0008] Preferably, the forward and reverse screw rods are threadedly connected to the threaded block, and the threaded block is fixedly connected to the limiting plate.

[0009] Preferably, the limiting plate and the limiting block are fixedly connected, and the plastic film roll forms a clamping structure with the limiting plate through the limiting block.

[0010] Preferably, the pressure roller assembly includes a pressure roller one, a pressure roller two is arranged on the upper left of the pressure roller one, a pressure roller three is arranged on the left side of the pressure roller two, and a pressure roller four is arranged on the upper left of the pressure roller three.

[0011] Preferably, the auxiliary mechanism includes a limiting ring, the limiting ring on the surface of pressure roller one is connected to the limiting plate via an inclined rod one, the limiting ring on the surface of pressure roller two is connected to the limiting plate via a connecting rod one, the limiting ring on the surface of pressure roller two is connected to the limiting ring on the surface of pressure roller three via a connecting rod two, and the limiting ring on the surface of pressure roller three is connected to the limiting ring on the surface of pressure roller four via an inclined rod two.

[0012] Preferably, a set of limiting rings are provided on the surfaces of the pressure roller one, the pressure roller two, the pressure roller three and the pressure roller four.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model effectively drives the positive and negative screws to rotate through the motor, thereby driving a group of threaded blocks on the surfaces of the positive and negative screws to move away from or approach each other, and then adjusting the spacing between a group of limit plates, so as to adapt to clamping plastic film rolls of different widths. At the same time, the position adjustment of the limit plates can effectively drive the auxiliary mechanism to adjust, so that the adjusted auxiliary mechanism can center the plastic film and prevent it from deflecting.

[0015] 2. In the utility model, since the limit ring on the surface of roller one and the limit ring on the surface of roller two are fixedly connected to the limit plate through inclined rod one and connecting rod one respectively, the limit ring on the surface of roller two and the limit ring on the surface of roller three, and the limit ring on the surface of roller three and the limit ring on the surface of roller four are fixedly connected through connecting rod two and inclined rod two respectively, the movement of the limit plate can effectively drive the movement of the limit ring on the surface of each roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the partial disassembled structure of the utility model;

[0019] Figure 4 It is a schematic diagram of a partial three-dimensional structure from another viewing angle of the utility model;

[0020] In the figure: 1. tube film machine body; 2. fixed frame; 3. limit mechanism; 4. plastic film reel; 5. pressure roller assembly; 6. auxiliary mechanism;

[0021] 301, positive and negative screw rods; 302, motor; 303, thread block; 304, limit plate; 305, limit block;

[0022] 501, pressure roller one; 502, pressure roller two; 503, pressure roller three; 504, pressure roller four;

[0023] 601, limit ring; 602, diagonal rod one; 603, connecting rod one; 604, connecting rod two; 605, diagonal rod two. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0025] A film feeding device for a tube film machine, see Figures 1 to 4 , comprising a tube film machine body 1, a fixing frame 2 is provided on one side of the tube film machine body 1, a limiting mechanism 3 is provided inside the fixing frame 2, a plastic film roll 4 is clamped inside the limiting mechanism 3, a pressing roller assembly 5 is provided on the left side of the plastic film roll 4, and an auxiliary mechanism 6 is provided on the surface of the pressing roller assembly 5;

[0026] The limiting mechanism 3 includes a forward and reverse screw rod 301, which is mounted on the inner side of the right end of the fixed frame 2, and the end of the forward and reverse screw rod 301 is connected to a motor 302, and a group of threaded blocks 303 are symmetrically sleeved on the surface of the forward and reverse screw rod 301, and the surface of the threaded block 303 is connected to a limiting plate 304, wherein the forward and reverse screw rod 301 and the threaded block 303 are threadedly connected, and the threaded block 303 and the limiting plate 304 are fixedly connected, and a limiting block 305 is provided on the inner side of the limiting plate 304, further, the limiting plate 304 and the limiting block 305 are fixedly connected, and the plastic film reel 4 forms a clamping structure with the limiting plate 304 through the limiting block 305. The utility model effectively drives the forward and reverse screw rods 301 to rotate through the motor 302, thereby driving a group of threaded blocks 303 on the surfaces of the forward and reverse screw rods 301 to move away from or approach each other, and then adjusting the spacing between a group of limit plates 304, so as to adapt to clamping plastic film rolls 4 of different widths. At the same time, the position adjustment of the limit plates 304 can effectively drive the auxiliary mechanism 6 to be adjusted, so that the adjusted auxiliary mechanism 6 can center the plastic film and prevent it from deflecting.

[0027] It is worth noting that the pressure roller assembly 5 includes a pressure roller 1 501, a pressure roller 2 502 is arranged on the upper left of the pressure roller 1 501, a pressure roller 3 503 is arranged on the left side of the pressure roller 2 502, and a pressure roller 4 504 is arranged on the upper left of the pressure roller 3 503. The pressure roller assembly 5 in the utility model is used to tension the plastic film, so as to facilitate the smooth transportation of the plastic film.

[0028] It is worth mentioning that the auxiliary mechanism 6 includes a limiting ring 601, wherein a group of limiting rings 601 are provided on the surfaces of pressure roller 1 501, pressure roller 2 502, pressure roller 3 503 and pressure roller 4 504, the limiting ring 601 on the surface of pressure roller 1 501 is connected to the limiting plate 304 via an inclined rod 1 602, the limiting ring 601 on the surface of pressure roller 2 502 is connected to the limiting plate 304 via a connecting rod 1 603, the limiting ring 601 on the surface of pressure roller 2 502 is connected to the limiting ring 601 on the surface of pressure roller 3 503 via a connecting rod 2 604, and the limiting ring 601 on the surface of pressure roller 3 503 is connected to the limiting ring 601 on the surface of pressure roller 4 504 via an inclined rod 2 605. In the utility model, since the surface limiting ring 601 of pressure roller 1 501 and the surface limiting ring 601 of pressure roller 2 502 are fixedly connected to the limiting plate 304 through the inclined rod 1 602 and the connecting rod 1 603 respectively, the surface limiting ring 601 of pressure roller 2 502 and the surface limiting ring 601 of pressure roller 3 503, and the surface limiting ring 601 of pressure roller 3 503 and the surface limiting ring 601 of pressure roller 4 504 are fixedly connected through the connecting rod 2 604 and the inclined rod 2 605 respectively, the movement of the limiting plate 304 can effectively drive the limiting ring 601 on the surface of each pressure roller to move.

[0029] Working principle: The motor 302 drives the forward and reverse screw rods 301 to rotate, thereby driving a group of threaded blocks 303 on the surfaces of the forward and reverse screw rods 301 to move away from or approach each other, and then adjusting the spacing between a group of limit plates 304, so as to adapt to clamping plastic film rolls 4 of different widths, and also facilitate the disassembly and assembly of the plastic film rolls 4. Since the limit rings 601 on the surfaces of the pressure roller 1 501 and the limit rings 601 on the surfaces of the pressure roller 2 502 are fixedly connected to the limit plates 304 through the inclined rod 1 602 and the connecting rod 1 603 respectively, the limit rings 601 on the surfaces of the pressure roller 2 502 and the limit rings 601 on the surfaces of the pressure roller 3 503 , the limiting ring 601 on the surface of the pressure roller three 503 and the limiting ring 601 on the surface of the pressure roller four 504 are fixedly connected by the connecting rod two 604 and the inclined rod two 605 respectively. Therefore, the position adjustment of the limiting plate 304 can drive the limiting ring 601 on the surface of each pressure roller to move, so that a group of limiting rings 601 on the surface of each pressure roller can center and prevent the plastic film from deflecting. Then, a section of plastic film is pulled to pass through the pressure roller assembly 5 in an interlaced manner, so that the pressure roller assembly 5 tensions the plastic film, and connects the end of the plastic film pulled out to the transmission drive device inside the tube film machine body 1. The transmission drive device is started to start work.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A film feeding device for a film roll machine, comprising a film roll machine body (1), characterized in that: A fixing frame (2) is provided on one side of the tube film machine body (1), a limiting mechanism (3) is provided inside the fixing frame (2), a plastic film roll (4) is clamped inside the limiting mechanism (3), a pressing roller assembly (5) is provided on the left side of the plastic film roll (4), and an auxiliary mechanism (6) is provided on the surface of the pressing roller assembly (5); The limiting mechanism (3) comprises a positive and negative screw rod (301), the positive and negative screw rod (301) is mounted on the inner side of the right end of the fixing frame (2), the end of the positive and negative screw rod (301) is connected to a motor (302), a group of thread blocks (303) are symmetrically sleeved on the surface of the positive and negative screw rod (301), the surface of the thread block (303) is connected to a limiting plate (304), and a limiting block (305) is provided on the inner side of the limiting plate (304).

2. The film feeding device of the drum film machine according to claim 1, characterized in that: The forward and reverse screw rods (301) are threadedly connected to the threaded block (303), and the threaded block (303) is fixedly connected to the limiting plate (304).

3. The film feeding device of the drum film machine according to claim 1, characterized in that: The limiting plate (304) and the limiting block (305) are fixedly connected, and the plastic film reel (4) forms a snap-fit ​​structure with the limiting plate (304) through the limiting block (305).

4. The film feeding device of the drum film machine according to claim 1, characterized in that: The pressure roller assembly (5) comprises a pressure roller one (501), a pressure roller two (502) is arranged on the upper left of the pressure roller one (501), a pressure roller three (503) is arranged on the left side of the pressure roller two (502), and a pressure roller four (504) is arranged on the upper left of the pressure roller three (503).

5. The film feeding device of the drum film machine according to claim 4, characterized in that: The auxiliary mechanism (6) comprises a limiting ring (601), the limiting ring (601) on the surface of the first pressure roller (501) is connected to the limiting plate (304) via an inclined rod (602), the limiting ring (601) on the surface of the second pressure roller (502) is connected to the limiting plate (304) via a connecting rod (603), the limiting ring (601) on the surface of the second pressure roller (502) is connected to the limiting ring (601) on the surface of the third pressure roller (503) via a connecting rod (604), and the limiting ring (601) on the surface of the third pressure roller (503) is connected to the limiting ring (601) on the surface of the fourth pressure roller (504) via an inclined rod (605).

6. The film feeding device of the drum film machine according to claim 5, characterized in that: A set of limiting rings (601) are provided on the surfaces of the pressure roller one (501), the pressure roller two (502), the pressure roller three (503) and the pressure roller four (504).

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