Paper bag unfolding device of square-bottom bag making machine

Abstract

The utility model discloses a paper bag unfolding device of a square-bottom bag making machine, and relates to the technical field of bag making machines. Comprising a bottom plate; the two edge plates are arranged on the two sides of the bottom plate respectively, and two guide rollers are arranged on the edge plates in the length direction of the bottom plate; the supporting roller is arranged on the bottom plate; the power roller is arranged on the edge plate and penetrates through the edge plate; the bottom of the power roller is in transmission connection with the motor; the air suction conveying belt sequentially passes through the power roller, the guide roller, the supporting roller and the guide roller. And the cover plate covers the top of the air suction conveying belt. The rhombic air suction conveying belts are arranged on the two sides of the bottom plate, the adsorption holes are formed in the air suction conveying belts, and the adsorption holes are communicated with the negative-pressure fan, so that bags pass through the middles of the two air suction conveying belts when entering the middle of the bottom plate step by step, the edges of the paper bags are adsorbed, and then the bags are moved out from the other end of the bottom plate; at the moment, the middles of the two air suction conveying belts are of expanding structures, and then the paper bags are unfolded.

Description

Technical Field

[0001] This utility model relates to the field of bag making machine technology, and more specifically to a paper bag unfolding device for a square bottom bag making machine. Background Technology

[0002] Paper bags are widely used in the packaging industry to protect or decorate packaged items, facilitate their handling or identification, and can also be used for advertising. A bag-making machine is a device that manufactures these bags, producing multifaceted items formed by the movement, stacking, folding, and enclosing of several constituent surfaces.

[0003] The traditional processing method involves inserting the plate into the gap between the base plate and the side plate to open them up. However, this method is prone to problems such as inconvenience in inserting the plate into the gap, resulting in inaccurate alignment, excessive processing time, and reduced production efficiency.

[0004] Therefore, how to provide a paper bag unfolding device for a square bottom bag making machine that can accurately unfold square bottom bags is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a paper bag unfolding device for a square bottom bag making machine, which aims to solve the problems in the background art and realize the accurate unfolding of the square bottom bag.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A paper bag unfolding device for a square-bottom bag making machine includes:

[0008] A base plate, the upper surface of which is rectangular;

[0009] The edge plate is provided in two parts, which are respectively disposed on both sides of the base plate. Two guide rollers are provided on the edge plate along the length direction of the base plate.

[0010] Support rollers are provided on the base plate, and two support rollers are provided in a symmetrical arrangement.

[0011] A power roller is disposed on the edge plate and passes through the edge plate. The bottom of the power roller is connected to a motor. The motor is disposed on the bottom surface of the base plate. The power roller and the two support rollers are on the same straight line.

[0012] The suction conveyor belt passes sequentially through a power roller, a guide roller, a support roller, and another guide roller. The suction conveyor belt is arranged in a diamond shape on both sides of the base plate and is symmetrical to each other.

[0013] A cover plate, the cover plate having a diamond-shaped structure, covers the top of the suction conveyor belt;

[0014] The suction conveyor belt and the cover plate form a suction chamber. The suction conveyor belt is provided with suction holes. The suction chamber is connected to a negative pressure fan, which is mounted on the base plate.

[0015] Furthermore, the negative pressure fan is located at the bottom of the base plate, and a negative pressure pipe is provided on the negative pressure fan. The negative pressure pipe passes through the bottom of the base plate and communicates with the suction chamber.

[0016] Furthermore, an air guide plate is provided between the two guide rollers on the same edge plate, and the top of the air guide plate is fixedly connected to the cover plate.

[0017] Furthermore, a guide groove is provided on the base plate corresponding to the bottom of the suction conveyor belt.

[0018] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a paper bag unfolding device for a square-bottom bag making machine. By setting diamond-shaped suction conveyor belts on both sides of the bottom plate, setting suction holes on the suction conveyor belts and connecting the suction holes to a negative pressure fan, it is possible to achieve the following when the bag gradually enters the middle of the bottom plate and passes through the middle of the two suction conveyor belts. Since the middle part of the two suction conveyor belts has a narrow diameter structure, the edge of the paper bag will be suctioned. Subsequently, the bag moves out from the other end of the bottom plate. At this time, the middle part of the two suction conveyor belts has an wide diameter structure, and the two sides of the paper bag are always suctioned on the suction conveyor belts, thus unfolding the paper bag. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 An overall structural diagram of a paper bag unfolding device for a square-bottom bag making machine provided by this utility model;

[0021] Figure 2 A structural diagram of the air guide plate of the paper bag unfolding device of a square bottom bag making machine provided by this utility model;

[0022] Figure 3 A structural diagram of the guide groove of the paper bag unfolding device of a square bottom bag making machine provided by this utility model;

[0023] Figure 4This utility model provides a bottom structural diagram of a paper bag unfolding device for a square-bottom bag making machine.

[0024] Wherein: 1 is the base plate; 2 is the edge plate; 3 is the guide roller; 4 is the support roller; 5 is the power roller; 6 is the electric motor; 7 is the suction conveyor belt; 8 is the cover plate; 9 is the air cavity; 10 is the adsorption hole; 11 is the negative pressure fan; 12 is the negative pressure pipe; 13 is the air guide plate; 14 is the guide groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] See Figure 1-4 This utility model discloses a paper bag unfolding device for a square-bottom bag making machine, comprising:

[0027] The base plate 1 has a rectangular upper surface; two edge plates 2 are provided, one on each side of the base plate 1, and two guide rollers 3 are provided on each edge plate 2 along the length of the base plate 1; two support rollers 4 are provided on the base plate 1, and the two support rollers 4 are arranged symmetrically; a power roller 5 is provided on the edge plate 2 and passes through the edge plate 2, and its bottom is connected to a motor 6, which is located on the bottom surface of the base plate 1, and the power roller 5 and the two support rollers 4 are on the same straight line; a suction conveyor belt 7 passes through the power roller 5, guide rollers 3, and support rollers 4 in sequence, and the suction conveyor belt 7 has a rhomboid structure and is arranged symmetrically on both sides of the base plate 1; and a cover plate 8 has a rhomboid structure. A cover plate 8 covers the top of the suction conveyor belt 7; the suction conveyor belt 7 and the cover plate 8 form a suction chamber 9, and the suction conveyor belt 7 is provided with adsorption holes 10. The suction chamber 9 is connected to a negative pressure fan 11, which is located on the base plate 1. In this embodiment, by setting diamond-shaped suction conveyor belts 7 on both sides of the base plate 1, setting adsorption holes 10 on the suction conveyor belts 7, and connecting the adsorption holes 10 to the negative pressure fan 11, it is possible to achieve that when the paper bag gradually enters the middle of the base plate 1, it passes through the middle of the two suction conveyor belts 7. Since the middle part of the two suction conveyor belts 7 is a narrowing structure, the edge of the paper bag will be adsorbed. Then the paper bag moves out from the other end of the base plate 1. At this time, the middle part of the two suction conveyor belts 7 is an expanding structure, and the two sides of the paper bag are always adsorbed on the suction conveyor belts 7, and then the paper bag is unfolded.

[0028] A negative pressure fan 11 is installed at the bottom of the base plate 1. A negative pressure pipe 12 is installed on the negative pressure fan 11. The negative pressure pipe 12 passes through the bottom of the base plate 1 and communicates with the suction chamber 9. A guide plate 13 is installed between the two guide rollers 3 on the same edge plate 2. The top of the guide plate 13 is fixedly connected to the cover plate 8. A guide groove 14 is installed on the base plate 1 corresponding to the bottom of the suction conveyor belt 7. In this embodiment, the negative pressure fan 11 and the negative pressure pipe 12 are both installed below the base plate 1. Air enters the suction chamber 9, the negative pressure pipe 12 and the negative pressure fan 11 in sequence from the adsorption hole 10. The guide plate 13 is used to isolate the air sucked in by the adsorption hole 10 on the suction conveyor belt 7 away from the base plate 1. The guide groove 14 is used to guide the suction conveyor belt 7 to move along the diamond-shaped route.

[0029] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A paper bag unfolding device for a square-bottom bag making machine, characterized in that, include: A base plate, the upper surface of which is rectangular; The edge plate is provided in two parts, which are respectively disposed on both sides of the base plate. Two guide rollers are provided on the edge plate along the length direction of the base plate. Support rollers are provided on the base plate, and two support rollers are provided in a symmetrical arrangement. A power roller is disposed on the edge plate and passes through the edge plate. The bottom of the power roller is connected to a motor. The motor is disposed on the bottom surface of the base plate. The power roller and the two support rollers are on the same straight line. The suction conveyor belt passes sequentially through a power roller, a guide roller, a support roller, and another guide roller. The suction conveyor belt is arranged in a diamond shape on both sides of the base plate and is symmetrical to each other. A cover plate, the cover plate having a diamond-shaped structure, covers the top of the suction conveyor belt; The suction conveyor belt and the cover plate form a suction chamber. The suction conveyor belt is provided with suction holes. The suction chamber is connected to a negative pressure fan, which is mounted on the base plate.

2. The paper bag unfolding device of a square-bottom bag making machine according to claim 1, characterized in that, The negative pressure fan is located at the bottom of the base plate, and a negative pressure pipe is installed on the negative pressure fan. The negative pressure pipe passes through the bottom of the base plate and communicates with the air suction chamber.

3. The paper bag unfolding device of a square-bottom bag making machine according to claim 1, characterized in that, An air guide plate is provided between the two guide rollers on the same edge plate, and the top of the air guide plate is fixedly connected to the cover plate.

4. The paper bag unfolding device of a square-bottom bag making machine according to claim 1, characterized in that, A guide groove is provided on the base plate corresponding to the bottom of the suction conveyor belt.

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