Flattening device for paper-plastic composite bag production

By designing a rotatable and telescopic pressing roller device, the problem of low roller replacement efficiency in the existing paper-plastic composite bag production was solved, achieving efficient flattening of paper-plastic composite bags of different sizes, thus improving production efficiency and applicability.

CN224103646UActive Publication Date: 2026-04-10WEIHAI HUANYU PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing paper-plastic composite bag production flattening devices require roller replacement when dealing with paper-plastic composite bags of different widths, resulting in low efficiency.

Method used

A flattening device including a conveyor belt and a pressing device was designed. The rotating pressing roller is driven by an electric telescopic rod, which can adapt to paper-plastic composite bags of different widths and thicknesses, realize automatic adjustment, and improve efficiency.

Benefits of technology

It achieves efficient flattening of paper-plastic composite bags of different widths and thicknesses, improves production efficiency, and expands the applicability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of paper-plastic composite bag production, in particular to a flattening device for paper-plastic composite bag production, which comprises a conveyor belt device and a pressing device, the pressing device comprises an electric telescopic rod with a fixed end fixedly arranged, a rotating shaft rotating along the axis of the U-shaped rod is arranged in the U-shaped rod, and the rotating shaft is locked by a locking device. Four sets of connecting rods are evenly arranged on the rotating shaft in the circumferential direction of the rotating shaft, each set of connecting rods comprises two connecting rods distributed left and right, supporting rods are symmetrically and fixedly arranged on the two sides of each connecting rod, the supporting rods and the corresponding connecting rods form a Y-shaped structure, a pressing roller is arranged between the two supporting rods located in the same transverse direction, and the lengths of the pressing rollers in different sets are different. And the width of the conveying belt is consistent with that of the U-shaped rod. By using the paper-plastic compound bag flattening device, the rotating shaft can be rotated to realize rotation of the connecting rods, so that rotation of the supporting rods is realized, different pressing rollers are changed to face downwards, and then paper-plastic compound bags with different widths can be flattened.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to paper plastic composite bag production technical field, concretely speaking, it is a kind of paper plastic composite bag production is flattened with device. BACKGROUND

[0002] Paper plastic composite bag needs to be flattened by certain means, which makes the appearance of paper plastic composite bag more flat, and the volume of paper plastic composite bag is reduced by flattening, which facilitates compression and packaging, and allows more paper plastic composite bags to be packed in the same volume for easy transportation.

[0003] The position of the roller used for flattening is fixed in the existing paper plastic composite bag production flattening device, so the roller needs to be replaced when flattening paper plastic composite bags of different widths, which will waste a lot of time and reduce the efficiency of paper plastic composite bag flattening. INVENTION CONTENTS

[0004] The utility model provides a kind of paper plastic composite bag production is flattened with device to solve the defects in prior art.

[0005] The utility model is implemented by the following technical solutions:

[0006] A kind of paper plastic composite bag production is flattened with device, including conveyor belt device and pressing device, the support plate of support upper side conveyor belt is fixedly arranged between the conveyor belt of transmission belt device, the electric telescopic rod of fixed end fixed setting is included in the pressing device, electric telescopic rod movable end fixedly arranged has the U-shaped rod of open downward, U-shaped rod is provided with the rotating shaft along its axis of rotation, rotating shaft is locked by locking device, the rotating shaft is evenly provided with four groups of connecting rods along its circumference, each group of connecting rods includes two left and right distributed connecting rods, the two sides of connecting rod are symmetrically and fixedly provided with support rod, support rod and corresponding connecting rod form Y-shaped structure, two support rods between the same horizontal direction are provided with compression roller, the length of different groups of compression rollers is different, the width of transmission belt is consistent with the width of U-shaped rod.

[0007] When using the present application, first, according to the needs, rotate the rotating shaft so that the required two rotating rollers are downward and locked by the locking device, then lay the paper plastic composite bag on the conveyor belt, start the electric telescopic rod, the electric telescopic rod is elongated to drive the corresponding compression roller to extrude the paper plastic composite bag, then start the conveyor belt device, the conveyor belt on the conveyor belt device is driven to move the paper plastic composite bag under the action of friction force, realize extrusion and movement at the same time, and when different sizes of paper plastic composite bags need to be extruded, only the corresponding compression roller is selected by rotating the rotating shaft.

[0008] As preferred, the U-shaped rod comprises a horizontal rod and vertical rods connected to both ends of the horizontal rod, a groove is formed on the horizontal rod, one end of the spring is fixedly arranged in the groove, and the other end of the spring is fixedly connected with the movable end of the electric telescopic rod.

[0009] As preferred, the two vertical rods of the U-shaped rod are respectively provided with a blind hole and a through hole, and a round rod is arranged in each of the blind hole and the through hole, the two round rods are coaxially fixedly connected through a rotating shaft, and the round rod is rotatably connected with the blind hole through a bearing.

[0010] As preferred, the locking device comprises a circular plate and a fixed plate, the round rod is vertically connected to the center of the circular plate, a plurality of screw holes corresponding to the connecting rods are uniformly formed on the circular plate, the fixed plate is fixedly connected with the vertical rod through a pad, a through hole is formed on the fixed plate, a screw rod is threadedly connected in the through hole, the screw rod is located on the rotating track of the screw hole and can be opposite to any screw hole, the circular plate can rotate synchronously with the rotating shaft, and the position of the circular plate can be fixed by selecting the screw rod and inserting the screw rod into the screw hole of the circular plate, so that the rotating shaft is locked.

[0011] As preferred, the supporting rod is a telescopic rod with a locking function, the fixed rod of the telescopic rod is fixedly connected with the connecting rod, and the shaft of the compression roller is rotatably connected with the movable rod of the telescopic rod. The supporting rod is a telescopic rod, which can drive the inclined movement of the compression roller on the supporting rod by the extension and shortening of the telescopic rod, thereby driving the compression roller to move up and down in the vertical direction, changing the distance between the compression roller and the conveying belt, and thereby adapting to paper-plastic composite bags with different thicknesses.

[0012] The application has the advantages that: the rotation of the connecting rod can be realized by rotating the rotating shaft, the rotation of the supporting rod can be realized, different compression rollers can be changed downward, paper-plastic composite bags with different widths can be flattened, the supporting rod is set as a telescopic rod to adapt to paper-plastic composite bags with different thicknesses, and the use range is further increased. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 is a structural schematic view of the present application;

[0015] Figure 2 is a distribution schematic view of the compression roller.

[0016] As shown in the figure:

[0017] 1, electric telescopic rod, 2, U-shaped rod, 3, connecting rod, 4, support rod, 5, compression roller, 6, conveyor belt, 7, support plate, 8, spring, 9, round rod, 10, round plate, 11, fixed plate, 12, screw. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] A kind of paper plastic composite bag production is flattened as shown in Figure 1 And Figure 2 It shows. Including conveyor belt 6 device and down-pressing device, the support plate 7 of the conveyor belt 6 between the transmission belt device is fixedly arranged to support the upper conveyor belt 6, the down-pressing device includes the electric telescopic rod 1 fixedly arranged at fixed end, specifically, fixedly arranged with cantilever beam, the fixed end of electric telescopic rod 1 is vertically arranged on cantilever beam, electric telescopic rod 1 is provided with two, the movable end of electric telescopic rod 1 is fixedly arranged with the U-shaped rod 2 of opening downward, the U-shaped rod 2 is provided with the rotating shaft along its axis of rotation, specifically, the vertical pole of the two sides of U-shaped rod 2 is respectively provided with blind hole and through hole, the blind hole and the through hole are all provided with round rod 9, the two round rods 9 are coaxially fixedly connected through rotating shaft, and the round rod 9 is rotatably connected with the blind hole through bearing. Rotating shaft is locked by locking device, the rotating shaft is uniformly provided with four groups of connecting rods 3 along its circumference, each group of connecting rods 3 includes two left and right distributed connecting rods 3, and the two sides of connecting rod 3 are symmetrically and fixedly provided with support rod 4, and support rod 4 and corresponding connecting rod 3 form Y-shaped structure, and the two support rods 4 located in the same horizontal direction are provided with compression roller 5, and the lengths of different groups of compression rollers 5 are different, and the width of the transmission belt is consistent with the width of the U-shaped rod 2.

[0020] When the application is used, first, according to the needs, the rotating shaft is rotated to make the required two rotating rollers downward and locked by the locking device, then the paper plastic composite bag is laid on the conveyor belt 6, the electric telescopic rod 1 is started, the electric telescopic rod 1 is elongated to drive the corresponding compression roller 5 to extrude the paper plastic composite bag, then the conveyor belt 6 device is started, and the transmission of the conveyor belt 6 on the conveyor belt 6 device drives the paper plastic composite bag to move under the action of friction force, realizes extrusion and movement at the same time, and realizes the extrusion of the paper plastic composite bag, and when different sizes of paper plastic composite bags need to be extruded, only the rotating shaft is selected to make the corresponding compression roller 5 downward.

[0021] The U-shaped rod 2 comprises a horizontal rod and vertical rods connected to both ends of the horizontal rod, a groove is formed in the horizontal rod, one end of the spring 8 is fixedly arranged in the groove, and the other end of the spring 8 is fixedly connected with the movable end of the electric telescopic rod 1.

[0022] The locking device comprises a circular plate 10 and a fixed plate 11, the circular rod 9 is vertically connected to the center of the circular plate 10, a plurality of screw holes corresponding to the connecting rods 3 are uniformly formed in the circumferential direction of the circular plate 10, the fixed plate 11 is fixedly connected with the vertical rod through a pad, a through hole is formed in the fixed plate 11, a screw rod 12 is threadedly matched in the through hole, the screw rod 12 is located on the rotation track of the screw hole and can be opposite to any screw hole. The circular plate 10 can rotate synchronously with the rotating shaft, and the screw rod 12 is selected, and the screw rod 12 is inserted into the screw hole in the circular plate 10, so that the position of the circular plate 10 is fixed, and the rotating shaft is locked.

[0023] The supporting rod 4 is a telescopic rod with a locking function, the telescopic rod fixed rod is fixedly connected with the connecting rod 3, and the shaft of the compression roller 5 is rotatably connected to the movable rod of the telescopic rod. The supporting rod 4 is a telescopic rod, which can ensure that the compression roller 5 on the supporting rod 4 is tilted and moved by the elongation and shortening of the telescopic rod, thereby driving the compression roller 5 to move up and down in the vertical direction, changing the distance between the compression roller 5 and the conveying belt 6, so as to adapt to paper-plastic composite bags of different thicknesses.

[0024] The use of the present application can realize the rotation of the connecting rod 3 by rotating the rotating shaft, and then realize the rotation of the supporting rod 4, and then change the downward direction of the different compression rollers 5, and then can flatten paper-plastic composite bags of different widths, and at the same time, the telescopic rod of the supporting rod 4 can adapt to paper-plastic composite bags of different thicknesses, further increasing the use range.

[0025] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A flattening device for paper-plastic composite bag production, characterized in that: The application relates to a conveying belt device and a pressing device, the conveying belt device is provided with support plates between conveying belts of the conveying belt device, the pressing device comprises electric telescopic rods fixedly arranged at fixed ends, the electric telescopic rods are fixedly provided with U-shaped rods with downward openings at movable ends, the U-shaped rods are provided with rotating shafts rotating along the shaft center lines, the rotating shafts are locked by locking devices, the rotating shafts are uniformly provided with four groups of connecting rods along the circumferences, each group of connecting rods comprises two left and right distributed connecting rods, the connecting rods are symmetrically and fixedly provided with support rods at two sides, the support rods and the corresponding connecting rods form Y-shaped structures, the pressing rollers are arranged between the two support rods in the same horizontal direction, the lengths of the pressing rollers in different groups are different, and the width of the conveying belt is consistent with the width of the U-shaped rod.

2. The flattening device for paper-plastic composite bag production according to claim 1, characterized in that: The U-shaped rod comprises a horizontal rod and vertical rods vertically connected at two ends of the horizontal rod, grooves are formed in the horizontal rod, one end of a spring is fixedly arranged in the groove, and the other end of the spring is fixedly connected with the movable end of the electric telescopic rod.

3. The flattening device for paper-plastic composite bag production according to claim 1, characterized in that: Blind holes and through holes are respectively formed in the two vertical rods of the U-shaped rod, round rods are arranged in the blind holes and the through holes, the two round rods are coaxially fixedly connected through the rotating shaft, and the round rods are rotatably connected with the blind holes through bearings.

4. The flattening device for producing paper-plastic composite bags according to claim 3, characterized in that: The locking device comprises a round plate and a fixed plate, the round rod is vertically connected at the center of the round plate, a plurality of screw holes corresponding to the connecting rods are uniformly formed in the round plate along the circumference, the fixed plate is fixedly connected with the vertical rod through a pad, a through hole is formed in the fixed plate, a screw rod is threadedly matched in the through hole, the screw rod is located on the rotating track line of the screw hole and can be opposite to any screw hole.

5. The flattening device for paper-plastic composite bag production according to claim 3, characterized in that: The support rod is a telescopic rod with a locking function, a fixed rod of the telescopic rod is fixedly connected with the connecting rod, and the shaft of the pressing roller is rotatably connected with the movable rod of the telescopic rod.