Conveying device for plastic bag film production

Abstract

The conveying device for plastic bag film production comprises a rack, the rack comprises a left support, a right support and a cover plate located at the upper ends of the left support and the right support, supporting plates are further arranged on the two sides between the left support and the right support, lug parts are arranged on the two sides of the lower end of the right side of the right support, and a rotating shaft is connected between the lug parts on the two sides through bearings; the two ends of the rotating shaft extend to the lug parts and are fixedly connected with rotating plates on the two sides, the rotating plates are fixedly connected through supporting rods, winding roller containing grooves are formed in the ends, away from the lug parts, of the rotating plates on the two sides, and telescopic air cylinders which are obliquely arranged are fixed to the two sides of the right support correspondingly. The telescopic ends of the telescopic air cylinders on the two sides are fixedly connected with the side edge of the rotating plate, and a conveying device is arranged between the left support and the right support. The technical scheme of the patent has remarkable beneficial effects in the field of conveying devices for plastic bag film production, the problems in the prior art are solved, and the progress of the plastic bag production technology is promoted.

Description

Technical Field

[0001] The utility model relates to the field of plastic bag processing, in particular to a transmission device for plastic bag film production. Background Art

[0002] In the production process, the manufacturing of plastic bags is a complex and delicate process. First, through a plastic blown film device, molten plastic is blown into a continuous tubular film. Subsequently, these tubular films enter the next process, where they are flattened, aligned, and precisely folded to transform into a more compact double-layer film form that is convenient for subsequent processing. After folding, the double-layer film is continuously wound around a special winding roller to form a compact film roll. This roll setting not only facilitates storage and transportation but also provides convenience for subsequent automated processing. In subsequent processing processes, such as printing patterns, precise cutting, and heat sealing and forming, precise and stable transmission of the double-layer film on the winding roller is required.

[0003] However, although existing transmission devices can effectively achieve the film transmission function, in actual operation, there is often a lack of detailed description and special design regarding how to stably and efficiently place the winding roller around which the plastic bag film is wound. Specifically, the placement position, fixing method of the winding roller, and its connection mechanism with the transmission device are all important factors affecting the transmission efficiency and processing quality.

[0004] Therefore, in order to further improve the automation level and processing efficiency of the plastic bag production line, it is necessary to improve the placement method of the winding roller around which the plastic bag film is wound and its integrated design with the transmission device. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a heat sealing device for high-performance plastic bag production.

[0006] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0007] A transmission device for plastic bag film production includes a frame, the frame includes a left support, a right support, and a cover plate located at the upper ends of the left support and the right support. Support plates are also provided on both sides between the left support and the right support. Ears are provided on both sides at the lower right end of the right support. A rotating shaft is connected by bearings between the two ears. Both ends of the rotating shaft extend out of the ears and are fixedly connected to the two rotating plates. The two rotating plates are fixedly connected by a support rod. Receiving roller placement grooves are provided at the ends of the two rotating plates far from the ears. Telescopic cylinders are fixedly provided on both sides of the right support and are inclined. The telescopic ends of the two telescopic cylinders are fixedly connected to the side edges of the rotating plates. A transmission device is provided between the left support and the right support.

[0008] The transmission device includes a number of upper pressing rollers and a number of lower pressing rollers corresponding to the upper pressing rollers. Both ends of the upper pressing rollers are connected to the moving plate by bearings. The upper ends of the two moving plates on both sides are fixedly connected to two support plates. Threaded sleeves are fixed on both support plates. The threaded sleeves are threadedly connected to the lead screws. The upper ends of the lead screws are fixedly connected to the output ends of the motors on the cover plate through couplings. Guide rods are also provided at the upper ends of the two support plates. The upper ends of the guide rods are movably arranged in the guide holes located on the cover plate.

[0009] Both ends of the lower pressing rollers are connected to the support plate by bearings, and one end of the first and the last lower pressing rollers extends out of the support plate and is connected to the output end of the rotating motor through a driven pulley, a driving pulley and a belt.

[0010] There are at least 6 upper pressing rollers and lower pressing rollers.

[0011] A guide rod is also provided on the right support.

[0012] The winding roller placement groove is adapted to both ends of the winding roller around which the plastic bag film is wound.

[0013] The first and the last lower pressing rollers among the lower pressing rollers rotate in the same direction.

[0014] Advantages of the present utility model:

[0015] By designing a special winding roller placement groove and combining with the adjustment function of the telescopic cylinder, the present utility model realizes the stable and flexible placement of the winding roller around which the plastic bag film is wound. This design not only simplifies the loading and unloading process of the winding roller, but also ensures the stability of the winding roller during the transmission process, effectively avoiding the problems of unsmooth film transmission or damage caused by the shaking of the winding roller, thereby improving the production efficiency and product quality.

[0016] By adopting a transmission method combining upper pressing rollers and lower pressing rollers, and supplemented by a lead screw lifting mechanism driven by a motor and guided by a guide rod, the present utility model ensures the high precision and stability of the film during the transmission process. This design can effectively control the tension of the film, prevent the film from generating wrinkles or stretching deformation during the transmission process, and provide high-quality film materials for subsequent processes such as printing, cutting and heat sealing.

[0017] The combination setting of the transmission device and the winding roller placement mechanism is realized. This design not only improves the automation degree of the production line, reduces the need for manual intervention, but also enhances the flexibility and adaptability of the production line, and can easily meet the production requirements of plastic bag films with different specifications, thicknesses and materials.

[0018] This patented technical solution has significant beneficial effects in the field of transmission devices for plastic bag film production, solves the problems existing in the prior art, and promotes the progress of plastic bag production technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present utility model.

[0020] Figure 2 It is a schematic structural diagram of the present utility model.

[0021] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below with reference to specific drawings.

[0023] A transmission device for plastic bag film production includes a frame 1. The frame 1 includes a left bracket 2, a right bracket 3, and a cover plate 4 located at the upper ends of the left bracket 2 and the right bracket 3. Support plates 5 are further provided on both sides between the left bracket 2 and the right bracket 3. Ears 6 are provided on both sides at the lower right end of the right bracket 3. A rotating shaft 7 is rotatably connected between the two ears 6. Both ends of the rotating shaft 7 extend out of the ears 6 and are fixedly connected to the two rotating plates 8. The two rotating plates 8 are fixedly connected by a support rod 9. A winding roller placement groove 10 is provided at one end of the two rotating plates 8 away from the ears 6. Telescopic cylinders 11 are fixed on both sides of the right bracket 3 and are inclined. The telescopic ends of the two telescopic cylinders 11 are fixedly connected to the side edges of the rotating plates 8. A transmission device is provided between the left bracket 2 and the right bracket 3.

[0024] The transmission device includes a plurality of upper pressing rollers 12 and a plurality of lower pressing rollers 13 corresponding to the plurality of upper pressing rollers 12. Both ends of the upper pressing rollers 12 are rotatably connected to a moving plate 14. The upper ends of the two moving plates 14 are fixedly connected to two support plates 15. Threaded sleeves are fixed on both of the two support plates 15. The threaded sleeves are threadedly connected to a lead screw 16. The upper end of the lead screw 16 is fixedly connected to the output end of a motor 17 on the cover plate 4 through a coupling. Guide rods 18 are further provided at the upper ends of the two support plates 15. The upper ends of the guide rods 18 are movably arranged in guide holes located on the cover plate 4.

[0025] Both ends of the lower pressing rollers 13 are rotatably connected to the support plates 5, and one end of the first lower pressing roller 19 and the last lower pressing roller 20 extends out of the support plates 5 and is connected to the output end of a rotating motor 21 through a driven belt pulley, a driving belt pulley, and a belt.

[0026] There are at least 6 upper pressing rollers 12 and lower pressing rollers 13.

[0027] A guide rod 22 is also provided on the right support 3.

[0028] The winding roller placement groove 10 is adapted to the two ends of the winding roller 23 around which the plastic bag film is wound.

[0029] The rotation directions of the first lower pressing roller 19 and the last lower pressing roller 20 in the lower pressing rollers 13 are the same.

[0030] Embodiment of the present utility model: An ear part 6 is provided at the lower right side of the right support 3, and a rotating shaft 7 is connected by a bearing. Both ends of the rotating shaft 7 are fixedly connected with rotating plates 8 to form a rotatable support structure. The rotating plates 8 are reinforced by a support rod 9, and a winding roller placement groove 10 is provided at one end away from the ear part 6. This groove is adapted to the two ends of the winding roller 23 around which the plastic bag film is wound, ensuring the stable placement of the winding roller. Tilted telescopic cylinders 11 are installed on both sides of the right support 3, and their telescopic ends are fixedly connected to the sides of the rotating plates 8. By the telescoping of the telescopic cylinders 11, the rotating plates 8 can be driven to rotate around the rotating shaft 7, realizing the convenient loading and unloading and angle adjustment of the winding roller 23.

[0031] The transmission device is located between the left support 2 and the right support 3 and is composed of a number of upper pressing rollers 12 and corresponding lower pressing rollers 13. Both ends of the upper pressing rollers 12 are connected to a moving plate 14 through bearings. A support plate 15 at the upper end of the moving plate 14 is fixed with a threaded sleeve, and the threaded sleeve is threadedly connected to a lead screw 16. The lead screw 16 is driven by a motor 17 on the cover plate 4 through a coupling to realize the lifting adjustment of the upper pressing rollers 12.

[0032] A guide rod 18 is provided at the upper end of the support plate 15 and is movably inserted into a guide hole of the cover plate 4 to ensure the stability of the upper pressing rollers 12 during the lifting process.

[0033] Both ends of the lower pressing rollers 13 are connected to a support plate 5 through bearings. Among them, the first lower pressing roller 19 and the last lower pressing roller 20 are connected to the output end of a rotating motor 21 through a driven pulley, a driving pulley and a belt. The first lower pressing roller 19 and the last lower pressing roller 20 rotate synchronously to provide stable transmission power for the film.

[0034] The upper pressing rollers 12 are driven by the lead screw 16 to descend until they contact the lower pressing rollers 13 to form an extrusion channel. At the same time, the rotating motor 21 drives the first lower pressing roller 19 and the last lower pressing roller 20 to rotate, driving the film to be drawn out from the winding roller 23 and transmitted along the extrusion channel. The extrusion force between the upper pressing rollers 12 and the lower pressing rollers 13 can be adjusted by adjusting the rotation direction and speed of the motor 17 to adapt to plastic bag films of different materials and thicknesses, ensuring the smoothness and tension control of the film during the transmission process.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed for the present utility model is defined by the appended claims and their equivalents.

Claims

1. A conveying device for producing plastic bag films, characterized in that: The frame comprises a left bracket, a right bracket and a cover plate located at the upper ends of the left bracket and the right bracket, support plates are further provided on both sides between the left bracket and the right bracket, ears are provided on both sides of the lower end of the right side of the right bracket, a rotating shaft is connected with a bearing between the ears on both sides, both ends of the rotating shaft extend to the ears and are fixedly connected to the rotating plates on both sides, the rotating plates are fixedly connected by support rods, and a winding roller placement groove is provided at one end of the rotating plates on both sides away from the ears, and an inclined telescopic cylinder is fixedly provided on both sides of the right bracket, and the telescopic ends of the telescopic cylinders on both sides are fixedly connected to the side edges of the rotating plate, and a transmission device is provided between the left bracket and the right bracket.

2. A conveying device for producing plastic bag films according to claim 1, characterized in that: The transmission device includes a plurality of upper squeezing rollers and a plurality of lower squeezing rollers corresponding to the plurality of upper squeezing rollers, the two ends of the upper squeezing rollers are connected to the bearings of the movable plate, the upper ends of the movable plates on both sides are fixedly connected to the two support plates, threaded sleeves are fixed on the two support plates, the threaded sleeves are threadedly connected to the lead screw, the upper end of the lead screw is fixedly connected to the output end of the motor on the cover plate through a coupling, the upper ends of the two support plates are also provided with guide rods, and the upper ends of the guide rods are movably arranged in guide holes located on the cover plate.

3. A conveying device for producing plastic bag films according to claim 2, characterized in that: Both ends of the lower squeezing rollers are connected to the support plate bearings, and one end of the first lower squeezing roller and the last lower squeezing roller extends out of the support plate and is connected to the output end of the rotating motor through a driven pulley, a driving pulley and a belt.

4. A conveying device for producing plastic bag films according to claim 2, characterized in that: There are at least 6 upper squeezing rollers and 6 lower squeezing rollers.

5. A conveying device for producing plastic bag films according to claim 1, characterized in that: The right bracket is also provided with a guide rod.

6. A conveying device for producing plastic bag films according to claim 1, characterized in that: The winding roller placement groove is matched with the two ends of the winding roller around which the plastic bag film is wound.

7. A conveying device for producing plastic bag films according to claim 2, characterized in that: The first lower squeezing roller and the last lower squeezing roller of the lower squeezing rollers rotate in the same direction.

Images