Bag body conveying device of bag making machine

Abstract

The utility model discloses a bag body conveying device of a bag making machine, which comprises a bag conveying assembly, the bag conveying assembly can drive a bag body to move, and a bottom folding assembly, a bottom opening assembly and a bottom supporting assembly are arranged along the bag conveying direction of the bag conveying assembly in an extending manner. A cavity is formed in the bag suction part, the cavity is connected with the negative pressure assembly, an air suction hole is formed in the bag suction part, and the air suction hole is communicated with the cavity, so that negative pressure is generated at the air suction hole to flatly suck the bottom of a bag body opened by the bottom opening assembly to the bag suction part, and meanwhile, the bag conveying assembly can drive the bag body to move on the bag suction part. The bag conveying device is simple in structure, reasonable in design and capable of guaranteeing that bag bodies are conveyed smoothly and stably and guaranteeing the quality of opening, folding and forming of the two ends of the bag bottoms.

Description

Technical Field

[0001] The utility model relates to bag making equipment, in particular to a bag body conveying device of a bag making machine. Background Art

[0002] The bag making machine is a special equipment used for the automated production of packaging bags. During the production process of packaging bags, the packaging bag substrate needs to be conveyed by the bag conveying device. During the conveying process, a series of processing operations will occur to the packaging bag substrate. For example, when the bottom of the packaging bag is opened, stretched and folded, the bottom of the bag will be deformed. After that, the packaging bag needs to be sent to the subsequent station for processing. After the bottom of the packaging bag is opened and folded, it is impossible to ensure that the bottom of the bag remains flat, which will affect the stability of the shape of the packaging bag after folding. When the packaging bag is sent to the next station, it may cause abnormal deformation of the packaging bag, affecting the molding quality of the packaging bag. Utility Model Content

[0003] In view of the shortcomings of the background technology, the technical problem to be solved by the utility model is to provide a bag conveying device for a bag making machine for solving the above-mentioned problem.

[0004] To this end, the utility model is implemented by adopting the following scheme:

[0005] A bag conveying device of a bag making machine comprises a bag feeding assembly, wherein the bag feeding assembly can drive the bag to move, and a bottom folding assembly, a bottom opening assembly and a bottom supporting assembly are extended along the bag feeding direction of the bag feeding assembly, and the characteristic is that a bag suction component is arranged corresponding to the bottom supporting component, the bag suction component has a cavity inside, the cavity is connected to a negative pressure component, and the bag suction component is provided with suction holes, which are connected to the cavity, so that negative pressure is generated at the suction holes to smoothly adsorb the bottom of the bag after being expanded by the bottom supporting component onto the bag suction component, and at the same time, the bag feeding assembly can drive the bag to move on the bag suction component.

[0006] The bag suction member comprises a first bag passing plate and a second bag passing plate which are spaced apart on the left and right sides, and the first bag passing plate and / or the second bag passing plate are provided with suction holes.

[0007] The bag conveying assembly comprises a lower conveying belt, and the bag suction member is located above the lower conveying belt.

[0008] The bottom supporting assembly comprises an upper conveyor belt, and a bag supporting plate is arranged on the upper conveyor belt.

[0009] The bottom folding assembly comprises a bottom folding plate which is bent.

[0010] The air suction holes are arranged in multiple groups.

[0011] A tubular portion communicating with the cavity is extended from the suction bag member, and the tubular portion is connected with the negative pressure component through an air pipe.

[0012] The bag conveying device of a bag making machine according to the above technical scheme is provided with a bag suction part at the corresponding position of the bottom supporting component in the bag feeding direction of the bag feeding component, so that when the bottom of the packaging bag is opened, stretched and folded during the bag feeding process, the bottom of the packaging bag can be neatly adsorbed on the bag suction part, so that the bottom of the bag can be kept flat, thereby ensuring the molding quality of the stretched and folded edges of the packaging bag, and then driving the packaging bag to be conveyed to the next workstation, which can ensure the subsequent normal processing of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model has the following drawings:

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 A partial enlarged view of the area pointed by A in the middle;

[0016] Figure 3 This is a schematic diagram of bag conveying in the utility model;

[0017] Figure 4 This is a view of the utility model after the bag body is conveyed and one side of the bag bottom is folded. DETAILED DESCRIPTION

[0018] As shown in the figure, the bag conveying device of a bag making machine disclosed in the utility model includes a bag feeding assembly, which can drive the bag to move. In this embodiment, the bag feeding assembly includes a lower conveyor belt 3, and the bag suction member is located above the lower conveyor belt 3. Of course, the bag feeding assembly can not only be a conveyor belt, but also a chain passing through various processing stations. A clamping assembly is arranged on the chain to clamp part of the bag body, and then the chain is controlled to move, so that the packaging bag can be driven to move to different processing stations. A bottom folding assembly, a bottom opening assembly 8 and a bottom supporting assembly are extended along the bag feeding direction of the bag feeding assembly. In this embodiment, the bottom folding assembly includes a bent bottom folding plate 10, and the bottom supporting assembly includes an upper conveyor belt 1, and a bag supporting plate 2 is arranged on the upper conveyor belt 1. The bottom opening assembly 8 includes a bottom opening suction nozzle, and the suction nozzle is arranged on the corresponding movable arm to drive the suction nozzle to move. The bottom folding assembly, the bottom opening assembly 8 and the bottom supporting assembly in this embodiment are all common structures on the market, so their specific structures will not be described in detail. A bag suction member is fixedly arranged corresponding to the bottom support component, and the bag suction member has a cavity inside, and the cavity is connected to the negative pressure component. The bag suction member is provided with an air suction hole 7, and the air suction hole 7 is connected to the cavity, so that the negative pressure generated at the air suction hole 7 will flatly adsorb the bottom of the bag body after being stretched by the bottom support component on the bag suction member, and the bag delivery component can drive the bag body to move on the bag suction member. In order to reduce the friction of the bag body, the bag suction member adopts a low friction coefficient material, for example, a Teflon layer is arranged on the bag suction member. In this embodiment, the bag suction member includes a first bag passing plate 5 and a second bag passing plate 6 arranged at intervals on the left and right, and the first bag passing plate 5 and the second bag passing plate 6 are provided with air suction holes 7. Of course, the air suction holes 7 can also be provided only on the first bag passing plate 5 or the second bag passing plate 6. When the packaging bag is completed to open the bottom and stretch the folded edge, one side of the bag bottom is adsorbed by the air suction hole 7 of one of the bag passing plates to keep it flat, and due to the joint effect of the whole bag body, the other side of the bag bottom will naturally become flat. In addition, in addition to the plate-like structure, the suction bag member can also be tubular or any other shape, as long as it can be provided with suction holes 7 and a cavity structure, and thus can achieve the adsorption function. Of course, according to different workstations, the suction bag members can be two or more spaced apart, or can be a single one, and can be flexibly selected and set. In order to improve the adsorption quality, the suction holes 7 are arranged in multiple groups. A tubular portion 4 connected to the cavity is extended on the suction bag member, and the tubular portion 4 is connected to the negative pressure component through an air pipe.

[0019] The working principle of the utility model is as follows: the bag body 9 of the packaging bag is first driven to move by the bag feeding assembly, and the bag bottom 11 of the bag body 9 is first guided by the bottom folding plate 10, so that the bag bottom 11 is folded up, and as the bag body 9 moves to the bottom opening and folding station, the bottom opening assembly 8 drives the bag bottom 11 to open, and at the same time, the bag support plate 2 is driven by the upper conveyor belt 1 and inserted into the opening of the bag bottom 11 of the packaging bag, until the bag bottom 11 of the packaging bag is supported and folded to form the bag bottom position of the packaging bag. At this time, the bottom of the packaging bag is subjected to the negative pressure suction force generated by the suction holes 7 on the first and second bag passing plates, so that the bottom position of the bag bottom after the folding of the bag bottom is flatly adsorbed on the bag passing plate, so as to avoid the bottom of the bag bottom from warping, so that the bag bottom of the packaging bag remains flat after being supported and folded, thereby ensuring its molding quality.

[0020] The structure of the utility model provides a bag suction component at the corresponding position of the bottom supporting component in the bag feeding direction of the bag feeding component, so that when the bottom of the packaging bag is opened, stretched and folded during the bag feeding process, the bottom of the packaging bag can be neatly adsorbed on the bag suction component, so that the bottom of the bag can be kept flat, thereby ensuring the molding quality of the stretched and folded edges of the packaging bag, and then driving the packaging bag to be transported to the next workstation, which can ensure the subsequent normal processing of the packaging bag.

Claims

1. A bag conveying device of a bag making machine, comprising a bag conveying assembly, the bag conveying assembly can drive the bag to move, and a bottom folding assembly, a bottom opening assembly (8) and a bottom supporting assembly are extended along the bag conveying direction of the bag conveying assembly, characterized in that: A bag suction member is fixedly arranged corresponding to the bottom supporting assembly, the bag suction member has a cavity inside, the cavity is connected to the negative pressure assembly, and the bag suction member is provided with a suction hole (7), the suction hole (7) is connected to the cavity, so that negative pressure is generated at the suction hole (7) to smoothly adsorb the bottom of the bag body after being expanded by the bottom supporting assembly onto the bag suction member, and at the same time, the bag feeding assembly can drive the bag body to move on the bag suction member.

2. The bag conveying device of a bag making machine according to claim 1, characterized in that The bag suction member comprises a first bag passing plate (5) and a second bag passing plate (6) which are arranged at intervals on the left and right, and the first bag passing plate (5) and / or the second bag passing plate (6) are provided with suction holes (7).

3. The bag conveying device of a bag making machine according to claim 1, characterized in that The bag conveying assembly comprises a lower conveying belt (3), and the bag suction member is located above the lower conveying belt (3).

4. The bag conveying device of a bag making machine according to claim 1, characterized in that The bottom support assembly comprises an upper conveyor belt (1), and a bag support plate (2) is arranged on the upper conveyor belt (1).

5. The bag conveying device of a bag making machine according to claim 1, characterized in that The bottom folding assembly comprises a bottom folding plate (10) which is arranged in a bent manner.

6. A bag conveying device for a bag making machine according to claim 1 or 2, characterized in that The air suction holes (7) are arranged in multiple groups.

7. The bag conveying device of a bag making machine according to claim 1, characterized in that A tubular portion (4) communicating with the cavity is extended from the suction bag member, and the tubular portion (4) is connected to the negative pressure component via an air pipe.

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