Tensioning mechanism for plastic bag processing and conveying

Abstract

The utility model relates to the technical field of mechanical structures, and discloses a tensioning mechanism for plastic bag processing and conveying, which comprises a base, a main roller, a roller component, a telescopic component, a sliding component and a pressing component, a main roller is arranged at the end of the base, the roller assembly is arranged on the base, and the telescopic assemblies are arranged on the two sides of the roller assembly. The sliding assemblies are arranged on the two sides of the base, and the pressing assemblies are arranged on the roller assemblies. The base is used for supporting, the main roller is used for guiding conveying, and the roller assemblies form a multi-layer rolling structure; the telescopic assembly is matched with a spring through a telescopic rod and a sleeve, and automatically stretches out and draws back according to the thickness and tension change of the plastic bag, and elastic self-adaptive tensioning is achieved. The sliding assembly utilizes a sliding groove to laterally limit the compression roller to ensure stable operation; and an elastic pressing block and a convex block of the pressing assembly further strengthen the local pressing effect, it is guaranteed that plastic bag machining and conveying are stable and efficient, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical structure technical field, concretely is a kind of for plastic bag processing and conveying tensioning mechanism. BACKGROUND

[0002] For the existing announcement number CN217263651U Chinese patent document discloses a kind of film compression device for plastic bag production, including conveying table, the conveying table top right side surface fixed installation has processing frame, the first rotating shaft is rotatably installed in the processing frame inner side bottom portion.The utility model discloses by the transmission screw rod rotation simultaneously, second rotating shaft and heating roller can be pushed down by the sliding block, and the lifting sleeve and push flat plate are synchronously lowered, while ensuring that push plate is attached to the surface of plastic film and is attached to the surface of plastic film, the interval between the two groups of heating rollers is adjusted, the plastic film of different thickness size is guaranteed to be compressed, the applicability of the whole device is improved, the steps and labor consumption required for the whole adjustment are reduced, and the plastic film compression heat treatment efficiency is improved, it is more practical, and is suitable for extensive promotion and use.

[0003] But the above scheme and prior art, tensioning mechanism still has the problem in elasticity self-adaption, some mechanism uses the fixed interval adjustment mode more mechanically, for the material of plastic bag such as material variable, thickness uneven, possibly not good real-time according to actual working condition provides compression force, therefore can be optimized and improved.

[0004] Therefore, the utility model provides a kind of for plastic bag processing and conveying tensioning mechanism for solving the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of for plastic bag processing and conveying tensioning mechanism to solve the problems in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of for plastic bag processing and conveying tensioning mechanism, including base, main roller, roller assembly, telescopic component, sliding component, compression assembly;

[0007] The base end is provided with main roller, the roller assembly is arranged on base, and the telescopic component is arranged on the two sides of roller assembly.

[0008] The sliding component is arranged on the two sides of base, and the compression assembly is arranged on roller assembly.

[0009] Preferably, the first roller in the roller assembly is fixedly arranged on the base, the compression roller is connected to the first roller, and the transmission roller is arranged on the lower side of the compression roller.

[0010] Preferably, the telescopic rod in the telescopic assembly is fixedly arranged on the compression roller, a sleeve is slidably and telescopically arranged on the telescopic rod, the sleeve is fixedly arranged on the first roller, and a spring is sleeved outside the sleeve.

[0011] Preferably, one end of the spring in the telescopic assembly is fixedly arranged on the first roller, and the other end of the spring is fixedly arranged on the compression roller.

[0012] Preferably, the sliding groove in the sliding assembly is arranged at both sides of the base, and the compression roller is slidably and telescopically arranged in the sliding groove.

[0013] Preferably, the elastic compression blocks in the compression assembly are uniformly fixedly arranged on the compression roller, and the elastic convex blocks are uniformly arranged on the elastic compression blocks.

[0014] Compared with the prior art, the base is used as support, the main roller is used for main conveying, the roller assembly is used for forming a multi-layer roller pressing structure to meet various requirements, the telescopic assembly is used for automatic telescoping according to the thickness and tension of the plastic bag by cooperation of the telescopic rod, the sleeve and the spring, elastic self-adaptive tensioning is realized, the sliding assembly is used for lateral limiting of the compression roller by the sliding groove to ensure stable operation, the elastic compression blocks and the convex blocks of the compression assembly further strengthen local compression effect, the elastic self-adaptive deficiency of the prior art is overcome, appropriate compression force is provided in real time according to working conditions, plastic bag processing and conveying are stably and efficiently ensured, and product quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a sliding assembly schematic view of the utility model;

[0017] Figure 3 It is a telescopic assembly schematic view of the utility model;

[0018] Figure 4 It is a compression assembly schematic view of the utility model.

[0019] In the drawing: base 1, main roller 2, roller assembly 3, first roller 301, compression roller 302, transmission roller 303, telescopic assembly 4, telescopic rod 401, sleeve 402, spring 403, sliding assembly 5, sliding groove 501, compression assembly 6, elastic compression block 601, elastic convex block 602. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below, and all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] Embodiment one: please refer to Figures 1-2 A kind of tensioning mechanism for plastic bag processing and conveying, including pedestal 1, main roller 2, roller assembly 3, telescopic component 4, sliding component 5, compression assembly 6;Pedestal 1 end is provided with main roller 2, roller assembly 3 is set on pedestal 1, telescopic component 4 is set on the both sides of roller assembly 3;Sliding component 5 is set on the both sides of pedestal 1, compression assembly 6 is set on roller assembly 3.

[0022] First roller 301 in roller assembly 3 is fixedly arranged on pedestal 1, and compression roller 302 is connected on first roller 301, and transmission roller 303 is arranged on the lower side of compression roller 302.

[0023] When using, first ensure that pedestal 1 is stably fixed, the conveying path of plastic bag is guided to roller assembly 3, material first contacts transmission roller 303, and transmission roller 303 provides preliminary support and stable forward friction force for plastic bag, to ensure that material is stably entered subsequent tensioning processing link, at this time, first roller 301 is used as basic support component, and the fixed connection with pedestal 1 guarantees the stability of entire roller assembly 3, and compression roller 302 maintains appropriate spacing with transmission roller 303 in initial state, to be adjusted dynamically according to the actual situation of plastic bag subsequently.

[0024] Embodiment two: on the basis of embodiment one, please refer to Figures 2-3 Telescopic rod 401 in telescopic component 4 is fixedly arranged on compression roller 302, and sleeve 402 is slidably connected on telescopic rod 401, sleeve 402 is fixedly arranged on first roller 301, and spring 403 is sleeved on the outside of sleeve 402.

[0025] One side end of spring 403 in telescopic component 4 is fixedly arranged on first roller 301, and the other side end of spring 403 is fixedly arranged on compression roller 302.

[0026] When the plastic bag starts to be conveyed and the thickness and tension change, such as encountering a thicker part or the tension fluctuates due to the change of speed, the compression roller 302 is subjected to the change of pressure or tension from the plastic bag, which drives the telescopic rod 401 to slide in the sleeve 402, at this time, the spring 403 automatically expands or contracts according to the force condition, if the pressure increases, the spring 403 is compressed, so that the compression roller 302 is close to the transmission roller 303, the compression force on the plastic bag is increased, if the tension increases, the spring 403 is stretched, the compression roller 302 is appropriately away from the transmission roller 303, the appropriate tension is maintained, through the elastic deformation of the spring 403, the plastic bag is always in the appropriate tension and compression state, the smooth running of the material in the roller assembly 3 is ensured, the problems such as wrinkles and relaxation are avoided, and the elastic performance of the spring 403 needs to be checked regularly.

[0027] Example three: on the basis of example two, please refer to Figures 3-4 The sliding groove 501 in the sliding assembly 5 is arranged at the two side ends of the base 1, and the compression roller 302 is slidingly embedded in the sliding groove 501.

[0028] The elastic compression blocks 601 in the compression assembly 6 are uniformly fixed on the compression roller 302, and the elastic protrusions 602 are uniformly arranged on the elastic compression blocks 601.

[0029] In use, during the running of the whole tensioning mechanism, the compression roller 302 smoothly slides along the sliding groove 501, the design of the sliding groove 501 not only provides a guide for the lateral movement of the compression roller 302, but also limits the movement range of the compression roller 302, so that the deviation phenomenon is prevented, and the cooperation with the transmission roller 303 is ensured to be accurate and stable, and at the same time, the elastic compression blocks 601 and the elastic protrusions 602 play a role, the elastic compression blocks 601 further buffer the pressure fluctuation transmitted by the plastic bag by using the elastic material, and the elastic protrusions 602 can penetrate into the fine texture on the surface of the plastic bag, increase the local friction force, and especially for the plastic bags with wrinkles or uneven surfaces, the plastic bags can be better flattened and compressed. The dust, debris and other impurities attached to the elastic compression blocks 601 and the elastic protrusions 602 are cleaned regularly, and the product quality is improved.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tensioning mechanism for plastic bag processing and conveying, characterized by: Including base (1), main roller (2), roller assembly (3), telescopic assembly (4), sliding assembly (5), compression assembly (6); The base (1) is provided with a main roller (2) at one end, the roller assembly (3) is arranged on the base (1), and the telescopic assembly (4) is arranged on both sides of the roller assembly (3); The sliding assembly (5) is arranged on both sides of the base (1), and the compression assembly (6) is arranged on the roller assembly (3).

2. The tensioning mechanism for plastic bag processing and conveying according to claim 1, characterized in that: The first roller (301) in the roller assembly (3) is fixedly arranged on the base (1), the first roller (301) is connected with a compression roller (302), and the compression roller (302) is provided with a transmission roller (303) on the lower side.

3. The tensioning mechanism for plastic bag processing and conveying according to claim 1, characterized in that: The telescopic rod (401) in the telescopic assembly (4) is fixedly arranged on the compression roller (302), the telescopic rod (401) is slidingly connected with a sleeve (402), the sleeve (402) is fixedly arranged on the first roller (301), and the sleeve (402) is sleeved with a spring (403) outside.

4. The tensioning mechanism for plastic bag processing and conveying according to claim 3, characterized in that: The spring (403) in the telescopic assembly (4) is fixedly arranged on the first roller (301) at one side end, and the other side end of the spring (403) is fixedly arranged on the compression roller (302).

5. The tensioning mechanism for plastic bag processing and conveying according to claim 1, characterized in that: The sliding groove (501) in the sliding assembly (5) is arranged on both sides of the base (1), and the sliding groove (501) is slidingly connected with the compression roller (302) inside.

6. The tensioning mechanism for plastic bag processing and conveying according to claim 1, characterized in that: The elastic compression blocks (601) in the compression assembly (6) are uniformly fixedly arranged on the compression roller (302), and the elastic compression blocks (601) are uniformly provided with elastic protrusions (602).

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