Printing device for woven bag

By designing an automatic flipping device and a double-sided printing machine for woven bags, the problem of the woven bag printing equipment being unable to automatically flip over was solved, achieving efficient and stable double-sided printing operation.

CN223657822UActive Publication Date: 2025-12-12GANSU HUAYU PLASTICS CO LTD
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Patent Information

Application Number
CN202520322859.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2025-12-12
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

Existing woven bag printing equipment cannot automatically flip the bags, resulting in high costs and low efficiency due to manual flipping.

Method used

A printing device was designed, which includes an inlet conveyor belt, an outlet conveyor belt, and a flipping device. It is equipped with front and back printing machines. The flipping device enables the automatic flipping of woven bags and stable printing on both sides.

Benefits of technology

It achieves automatic flipping of the front and back of woven bags and stable printing, reduces manual operation, and improves printing efficiency and consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lettering device for woven bags, which comprises an inlet conveying belt, an outlet conveying belt and a turnover device arranged between the outlet conveying belt and the inlet conveying belt, a front lettering support is arranged on the side face of the inlet conveying belt, a front lettering machine is arranged at the top of the front lettering support, and a back lettering machine is arranged at the bottom of the front lettering support. The front lettering machine is arranged above the inlet conveying belt, a back lettering support is arranged on the side face of the outlet conveying belt, a back lettering machine is arranged on the top of the back lettering support, and the back lettering machine is arranged above the outlet conveying belt.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of woven bag processing, especially a printing device for woven bags. BACKGROUND

[0002] Woven bags, also known as snake skin bags, are a kind of plastic bags used for packaging. The raw materials are usually polyethylene, polypropylene and other chemical plastics. The color of woven bags is usually white or off-white, and they are non-toxic and odorless, causing little harm to the human body. Although they are made of various chemical plastics, they have strong environmental protection and high recycling potential. Woven bags have a wide range of applications, mainly used for packaging various items, and widely used in the industrial sector. Plastic woven bags are made of polypropylene resin as the main raw material, extruded and stretched into flat filaments, and then woven and bagged.

[0003] Normally, both sides of the woven bag will be printed with text, but the existing equipment does not have the function of automatically turning over. Usually, after printing text on one side of the woven bag, manual turning is used to make it enter the equipment again for continuous printing. This method not only wastes labor costs, but also is inefficient, time-consuming and labor-intensive. Therefore, a printing device for woven bags is needed to solve the above problems. SUMMARY

[0004] The purpose of the utility model is to provide a printing device for woven bags, which solves the problems in the above technical field.

[0005] The utility model is implemented as follows: a printing device for woven bags, comprising: an import conveying belt, an export conveying belt, and a turnover device placed between the export conveying belt and the import conveying belt, the side of the import conveying belt is provided with a front printing support, the top of the front printing support is provided with a front printing machine, the front printing machine is placed above the import conveying belt, the side of the export conveying belt is provided with a back printing support, the top of the back printing support is provided with a back printing machine, and the back printing machine is placed above the export conveying belt.

[0006] A further technical solution of the utility model is: the turnover device comprises: a rotating wheel support, a rotating wheel, a turnover motor, and a turnover plate, one end of the rotating wheel is rotatably connected with the rotating wheel support, the other end of the rotating wheel is in transmission connection with the output shaft of the turnover motor, the bottom of the turnover motor is provided with a motor support, the turnover plate is connected with the rotating wheel and placed above the import conveying belt, the turnover plate is placed below the front printing machine, and a square opening is arranged on the upper surface of the turnover plate.

[0007] The further technical scheme of the utility model discloses: the both sides upper surface of the turnover board is equipped with the baffle, the both side walls of the turnover board are equipped with the pressing plate pneumatic cylinder, the center of baffle is equipped with the moving groove, the inboard of baffle is equipped with the pressing plate, the pressing plate is T-shaped, the tail of pressing plate penetrates the moving groove and is connected with the piston rod of pressing plate pneumatic cylinder.

[0008] The further technical scheme of the utility model discloses: the runner is light hollow material.

[0009] The further technical scheme of the utility model discloses: the front end of the turnover board is equipped with the chamfer, can guarantee that the woven bag can enter the turnover board very smoothly.

[0010] The further technical scheme of the utility model discloses: the highest height that the runner drives the turnover board reaches is less than the height of the front printing machine and the back printing machine, can prevent the turnover board from being hindered by two printing machines in the process of rotating, thereby causing loss.

[0011] The utility model discloses the beneficial effect: the utility model discloses simple structure, convenient operation, and the front printing machine and the back printing machine can be carried out stable printing to the front and back of woven bag, and the turnover device can be carried out stable turnover to woven bag, and manual turnover is not needed, is very rapid and stable, can also play a positioning effect in the printing process, guarantees that the position of printing on the front and back of woven bag is uniform, standard and reliable. DRAWINGS

[0012] Figure 1 It is the overall structure diagram of the printing device for woven bag provided by the utility model,

[0013] Figure 2 It is the front view of the printing device for woven bag provided by the utility model,

[0014] Figure 3 It is the left view of the printing device for woven bag provided by the utility model,

[0015] Figure 4 It is the planar section view of the printing device for woven bag provided by the utility model,

[0016] Figure 5 It is the front section view of the printing device for woven bag provided by the utility model.

[0017] Fig. 1 is an import conveying belt; Fig. 2 is an export conveying belt; Fig. 3 is a front printing support; Fig. 31 is a front printing machine; Fig. 4 is a back printing support; Fig. 41 is a back printing machine; Fig. 5 is a turnover device; Fig. 51 is a rotating wheel support; Fig. 52 is a rotating wheel; Fig. 53 is a turnover motor; Fig. 54 is a motor support; Fig. 55 is a turnover plate; Fig. 56 is a baffle; Fig. 57 is a pressing plate; and Fig. 58 is a pressing plate cylinder. DETAILED DESCRIPTION

[0018] The implementation manner of the present application is described below through specific examples. Other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the present application. The present application can also be implemented or applied through different specific implementation manners, and various modifications or changes can be made to the details in the present application based on different viewpoints and applications without departing from the spirit of the present application.

[0019] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to understand and read the content disclosed in the present application by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and "one" used in the present application are only for the convenience of clear description, and are not used to limit the scope of the implementation of the present application. The change or adjustment of the relative relationship without substantially changing the technical content is also considered as the implementation scope of the present application.

[0020] Example 1 Figures 1-5 A printing device for woven bags is shown, which comprises an import conveying belt 1, an export conveying belt 2, and a turnover device 5 arranged between the export conveying belt 2 and the import conveying belt 1. The side of the import conveying belt 1 is provided with a front printing support 3, and the top of the front printing support 3 is provided with a front printing machine 31. The front printing machine 31 is arranged above the import conveying belt 1. The side of the export conveying belt 2 is provided with a back printing support 4, and the top of the back printing support 4 is provided with a back printing machine 41. The back printing machine 41 is arranged above the export conveying belt 2.

[0021] The further technical scheme of the utility model discloses: the turnover device 5 includes: the rotating wheel support 51, the rotating wheel 52, the turnover motor 53 and the turnover board 55, one end of rotating wheel 52 with rotating wheel support 51 rotatory connection, the other end of rotating wheel 52 with the output shaft transmission connection of turnover motor 53, the bottom of turnover motor 53 is equipped with motor support 54, the turnover board 55 with rotating wheel 52 is connected and is placed in the above of import conveying belt 1, the turnover board 55 is placed in the below of the front printing machine 31, the upper surface of turnover board 55 is equipped with square opening.

[0022] The further technical scheme of the utility model discloses: the upper surface of both sides of turnover board 55 is equipped with baffle 56, is equipped with pressing plate cylinder 58 on the side wall of both sides of turnover board 55, the center of baffle 56 is equipped with moving groove, the inboard of baffle 56 is equipped with pressing plate 57, the pressing plate 57 is T-shaped, the tail of pressing plate 57 is connected with the piston rod of pressing plate cylinder 58 through moving groove.

[0023] The further technical scheme of the utility model discloses: rotating wheel 52 is light hollow material.

[0024] The further technical scheme of the utility model discloses: the front end of turnover board 55 is equipped with chamfer.

[0025] The further technical scheme of the utility model discloses: the highest height that rotating wheel 52 drives turnover board 55 reaches is less than the height of front printing machine 31 and back printing machine 41.

[0026] Working principle: when using the utility model, first, the woven bag flows into from import conveying belt 1, initially, the turnover board 55 is inclined, one end is close to import conveying belt, under the action of conveying belt, let the woven bag move to the turnover board 55, still leave a little side on the conveying belt, the rest is placed on the turnover board 55, the pressing plate cylinder 58 retracts, the woven bag is pressed through the pressing plate 57, then the turnover motor 53 starts, drives the turnover board 55 to rotate to the parallel place of front printing machine 31, carries out printing processing;

[0027] When printing is completed, the turnover motor 53 rotates 180 degrees, lets the back of the woven bag face back printing machine 41, back printing machine 41 carries out printing processing through square opening, finally, rotates again to let the one end of turnover board be close to export conveying belt 2, loosen the pressing plate 57, under the drive of friction, transports the woven bag printed with characters to the next station.

[0028] The above only is the preferred embodiment of the utility model, and does not use to limit the utility model, and any modification, equivalent replacement and improvement etc. that are made within the spirit and principle of the utility model should include in the protection scope of the utility model.

Claims

1. A printing device for woven bags, comprising: An inlet conveyor belt (1), an outlet conveyor belt (2), and a flipping device (5) placed between the outlet conveyor belt (2) and the inlet conveyor belt (1) are characterized in that a front printing bracket (3) is provided on the side of the inlet conveyor belt (1), a front printing machine (31) is provided on the top of the front printing bracket (3), and the front printing machine (31) is placed above the inlet conveyor belt (1); a reverse printing bracket (4) is provided on the side of the outlet conveyor belt (2), a reverse printing machine (41) is provided on the top of the reverse printing bracket (4), and the reverse printing machine (41) is placed above the outlet conveyor belt (2).

2. The printing device for woven bags according to claim 1, characterized in that, The flipping device (5) includes: a rotating wheel bracket (51), a rotating wheel (52), a flipping motor (53), and a flipping plate (55). One end of the rotating wheel (52) is rotatably connected to the rotating wheel bracket (51), and the other end of the rotating wheel (52) is drively connected to the output shaft of the flipping motor (53). The bottom of the flipping motor (53) is provided with a motor bracket (54). The flipping plate (55) is connected to the rotating wheel (52) and is placed above the inlet conveyor belt (1). The flipping plate (55) is placed below the front printing machine (31), and the upper surface of the flipping plate (55) is provided with a square opening.

3. A printing device for woven bags according to claim 2, characterized in that, The upper surfaces of both sides of the flip plate (55) are provided with baffles (56), and the side walls of the flip plate (55) are provided with pressure plate cylinders (58). The center of the baffle (56) is provided with a moving groove, and the inner side of the baffle (56) is provided with a pressure plate (57). The pressure plate (57) is T-shaped, and the tail of the pressure plate (57) passes through the moving groove and is connected to the piston rod of the pressure plate cylinder (58).

4. A printing device for woven bags according to claim 2, characterized in that, The wheel (52) is made of lightweight hollow material.

5. A printing device for woven bags according to claim 3, characterized in that, The front end of the flip plate (55) is chamfered.

6. A printing device for woven bags according to claim 3, characterized in that, The highest height reached by the rotating wheel (52) driving the flip plate (55) is less than the height of the front printing machine (31) and the back printing machine (41).