Packaging bag film blowing device

Abstract

The utility model discloses a packaging bag film blowing device, which belongs to the technical field of packaging bag production and comprises a case, two groups of supports are fixedly mounted on the outer surface of the case, an extruder is fixedly mounted at the top ends of the two groups of supports together, a machine head is fixedly mounted at the output end of the extruder, a die head is fixedly mounted on the upper surface of the case, and the die head is fixedly mounted on the lower surface of the case. A cooling box is fixedly connected to the inner wall of the machine box, a refrigeration guide plate is fixedly embedded in the bottom face of the cooling box, a cooling air pipe is fixedly communicated with the inner bottom wall of the machine box, a cooling fan is fixedly installed on the inner wall of the cooling air pipe, and a filter pipe is in threaded connection with the inner ring of the cooling air pipe. A coarse filter plate and a fine filter plate are fixedly installed on the inner ring of the filter pipe, the fine filter plate is located below the cooling fan, a discharge port is formed in the left side face of the machine box, and a liquid injection pipe is arranged above the machine box. According to the film blowing device for the packaging bag, the packaging bag can be cooled more quickly, and the cooling speed of a film of the packaging bag is increased.

Description

Technical Field

[0001] The utility model relates to the field of packaging bag production, in particular to a packaging bag film blowing device. Background Art

[0002] Packaging bags refer to bags used to package various supplies, which make it convenient to transport and store goods during the production and circulation process, and packaging bags need to be transported during the production process.

[0003] When producing packaging bags, it is necessary to use a film blowing machine for film blowing processing. Film blowing is a plastic processing method, which refers to a plastic processing technology in which plastic particles are heated and melted and then blown into a film. Usually, the polymer is extruded into a tubular film blank, and the tubular film is blown up to the required thickness by high-pressure air under a good melt flow state. After cooling and shaping, it becomes a film for packaging bag production. However, when the current film blowing machine cools the packaging bag film by blowing, a cooling fan is usually used for air cooling. Dust or other impurities in the air will affect the product quality during the processing of the packaging bag film and reduce the cooling rate of the packaging bag film. Therefore, a person skilled in the art provides a packaging bag film blowing device to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a packaging bag film blowing device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A packaging bag film blowing device comprises a chassis, wherein two groups of brackets are fixedly installed on the outer surface of the chassis, an extruder is fixedly installed on the top ends of the two groups of brackets, a machine head is fixedly installed on the output end of the extruder, a die head is fixedly installed on the upper surface of the chassis, a cooling box is fixedly connected to the inner wall of the chassis, a refrigeration guide plate is fixedly inlaid on the bottom surface of the cooling box, a cooling air duct is fixedly connected to the inner bottom wall of the chassis, a cooling fan is fixedly installed on the inner wall of the cooling air duct, a filter tube is threadedly connected to the inner ring of the cooling air duct, a coarse filter plate and a fine filter plate are fixedly installed on the inner ring of the filter tube, the fine filter plate is located below the cooling fan, and a discharge port is opened on the left side of the chassis.

[0007] As a further solution of the utility model: an injection pipe is provided above the chassis, the bottom end of the injection pipe passes through the chassis and the cooling box in sequence and extends to the interior of the cooling box, and the inner circle of the injection pipe is threadedly connected with a sealing plug.

[0008] As a further solution of the utility model: a support plate is fixedly installed on the inner wall of the chassis, and a temperature sensor is fixedly installed on the bottom surface of the support plate.

[0009] As a further solution of the utility model: two carrier plates are fixedly connected to the left side of the chassis, and a winding roller is commonly installed on one side of the two carrier plates close to each other.

[0010] As a further solution of the utility model: two groups of bases are fixedly connected to the bottom surface of the chassis, and an operating door is hinged on the front surface of the chassis through a pin shaft.

[0011] As a further solution of the utility model: a controller is fixedly installed on the front of the chassis, the temperature sensor is electrically connected to the controller through a wire, and the controller is electrically connected to the extruder, the semiconductor refrigeration sheet and the cooling fan through wires.

[0012] As a further solution of the utility model: two upper rollers are installed on the inner wall of the chassis, and two lower rollers are installed on the inner wall of the chassis.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The packaging bag film blowing device can make the packaging bag film pass between the upper roller and the lower roller through the upper roller and the lower roller provided inside the machine case, so as to facilitate the cooling treatment of the packaging bag film after film blowing. The coarse filter plate and the fine filter plate provided inside the cooling air duct can filter and collect dust when the cooling fan is working, and can block the dust, so as to solve the problem that dust or impurities in the air affect the product quality during the processing of the packaging bag film. Moreover, the coolant inside the cooling box, in cooperation with the semiconductor refrigeration sheet and the refrigeration guide plate, will adhere to the surface of the packaging bag film, so that it can be cooled more quickly, thereby improving the cooling speed of the packaging bag film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a front view of a packaging bag film blowing device;

[0016] Figure 2 It is a partial cross-sectional view of the front view of a chassis in a packaging bag film blowing device;

[0017] Figure 3 It is a partial cross-sectional view of a bottom view of a chassis in a packaging bag film blowing device;

[0018] Figure 4 A packaging bag film blowing device Figure 3 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure: 1. Chassis; 2. Bracket; 3. Extruder; 4. Machine head; 5. Die head; 6. Lower roller; 7. Upper roller; 8. Cooling box; 9. Refrigeration guide plate; 10. Cooling air duct; 11. Filter tube; 12. Fine filter plate; 13. Coarse filter plate; 14. Cooling fan; 15. Base; 16. Support plate; 17. Temperature sensor; 18. Liquid injection tube; 19. Sealing plug; 20. Discharge port; 21. Carrier plate; 22. Winding roller; 23. Operating door; 24. Controller; 25. Semiconductor refrigeration sheet. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] See also Figures 1 to 4In the embodiment of the utility model, a packaging bag film blowing device includes a chassis 1, two sets of brackets 2 are fixedly installed on the outer surface of the chassis 1, an extruder 3 is fixedly installed on the top of the two sets of brackets 2, a head 4 is fixedly installed on the output end of the extruder 3, a die head 5 is fixedly installed on the upper surface of the chassis 1, a cooling box 8 is fixedly connected to the inner wall of the chassis 1, a refrigeration guide plate 9 is fixedly inlaid on the bottom surface of the cooling box 8, a cooling air duct 10 is fixedly connected to the inner bottom wall of the chassis 1, a cooling fan 14 is fixedly installed on the inner wall of the cooling air duct 10, and an inner ring screw of the cooling air duct 10 A filter tube 11 is connected with the groove, and a coarse filter plate 13 and a fine filter plate 12 are fixedly installed on the inner circle of the filter tube 11 respectively. The fine filter plate 12 is located below the cooling fan 14. A discharge port 20 is opened on the left side of the chassis 1. Through the cooperation of the extruder 3, the head 4 and the die head 5, the hot-melt plastic material can be extruded into a tubular film blank, which is convenient for film blowing processing. Through the cooperation of the cooling air duct 10 and the cooling fan 14, the packaging bag film can be preliminarily cooled. Through the setting of the discharge port 20, the cooled packaging bag film can be discharged.

[0023] An injection pipe 18 is provided above the chassis 1, and the bottom end of the injection pipe 18 passes through the chassis 1 and the cooling box 8 in sequence and extends to the inside of the cooling box 8. The inner circle of the injection pipe 18 is threadedly connected with a sealing plug 19. A support plate 16 is fixedly installed on the inner wall of the chassis 1, and a temperature sensor 17 is fixedly installed on the bottom surface of the support plate 16. Two carrier plates 21 are fixedly connected to the left side of the chassis 1, and a winding roller 22 is commonly installed on one side of the two carrier plates 21 close to each other. The setting of the injection pipe 18 facilitates the injection of coolant, and the temperature sensor 17 set at the bottom of the support plate 16 plays a role in sensing temperature during cooling. The carrier plate 21 and the winding roller 22 are used to facilitate the winding of the cooled packaging bag film.

[0024] Two groups of bases 15 are fixedly connected to the bottom surface of the chassis 1, an operating door 23 is hinged on the front of the chassis 1 through a pin shaft, a controller 24 is fixedly installed on the front of the chassis 1, a temperature sensor 17 is electrically connected to the controller 24 through a wire, and the controller 24 is electrically connected to the extruder 3, the semiconductor refrigeration sheet 25 and the cooling fan 14 through wires, respectively. Two upper rollers 7 are installed on the inner wall of the chassis 1, and two lower rollers 6 are installed on the inner wall of the chassis 1. By opening the operating door 23, it is convenient to operate the interior of the chassis 1. By using the cooperation of the upper roller 7 and the lower roller 6, the packaging bag film can be limited and blocked during cooling, which will provide a better cooling treatment.

[0025] The working principle of the utility model is: firstly, the device is connected to a power source, and then, through the cooperation of the extruder 3, the head 4 and the die head 5, the hot-melt plastic material can be extruded to form a tubular film blank, and the tubular film is blown to the required thickness by high-pressure air under a good melt flow state, and then circulated inside the chassis 1, and the packaging bag film is passed between the upper roller 6 and the lower roller 7, and then the packaging bag film is blown and cooled by the cooling fan 14, and the dust can be filtered and collected when the cooling fan 14 is working through the coarse filter plate 13 and the fine filter plate 12, and the dust can be blocked and processed, and then through the operation of the refrigeration guide plate 9, cold conduction can be carried out, and it will be attached to the surface of the packaging bag film, so that it can be cooled more quickly.

[0026] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and utility model concept of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A packaging bag film blowing device, comprising a housing (1), characterized in that: Two groups of brackets (2) are fixedly mounted on the outer surface of the chassis (1); an extruder (3) is fixedly mounted on the top ends of the two groups of brackets (2); a head (4) is fixedly mounted on the output end of the extruder (3); a die head (5) is fixedly mounted on the upper surface of the chassis (1); a cooling box (8) is fixedly connected to the inner wall of the chassis (1); a cooling guide plate (9) is fixedly embedded on the bottom surface of the cooling box (8); and a cooling air duct (1) is fixedly connected to the inner bottom wall of the chassis (1). 0), a cooling fan (14) is fixedly mounted on the inner wall of the cooling air duct (10), a filter tube (11) is threadedly connected to the inner ring of the cooling air duct (10), a coarse filter plate (13) and a fine filter plate (12) are fixedly mounted on the inner ring of the filter tube (11), and the fine filter plate (12) is located below the cooling fan (14), a discharge port (20) is opened on the left side of the chassis (1), and two semiconductor cooling plates (25) are fixedly embedded on the inner wall of the chassis (1).

2. A packaging bag film blowing device according to claim 1, characterized in that: An injection pipe (18) is provided above the chassis (1), the bottom end of the injection pipe (18) passes through the chassis (1) and the cooling box (8) in sequence and extends into the interior of the cooling box (8), and a sealing plug (19) is threadedly connected to the inner ring of the injection pipe (18).

3. The packaging bag film blowing device according to claim 1, characterized in that: A support plate (16) is fixedly mounted on the inner wall of the chassis (1), and a temperature sensor (17) is fixedly mounted on the bottom surface of the support plate (16).

4. A packaging bag film blowing device according to claim 1, characterized in that: Two carrier plates (21) are fixedly connected to the left side of the chassis (1), and a winding roller (22) is commonly mounted on the side of the two carrier plates (21) that are close to each other.

5. The packaging bag film blowing device according to claim 1, characterized in that: Two groups of bases (15) are fixedly connected to the bottom surface of the chassis (1), and an operating door (23) is hingedly connected to the front surface of the chassis (1) via a pin shaft.

6. The packaging bag film blowing device according to claim 3, characterized in that: A controller (24) is fixedly mounted on the front of the chassis (1); the temperature sensor (17) is electrically connected to the controller (24) via a wire; and the controller (24) is electrically connected to the extruder (3), the semiconductor refrigeration sheet (25), and the cooling fan (14) via wires.

7. The packaging bag film blowing device according to claim 1, characterized in that: Two upper rollers (7) are installed on the inner wall of the chassis (1), and two lower rollers (6) are installed on the inner wall of the chassis (1).

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