Film blowing machine for woven bag production

Abstract

The utility model discloses a film blowing machine for woven bag production. The film blowing machine comprises a first conveying assembly, the first conveying assembly comprises a base, a first conveying cylinder is arranged on the base, a feeding assembly is arranged on the top side of the first conveying cylinder, a second conveying assembly is arranged on one side of the feeding assembly, and a film blowing mechanism is arranged on one side of the second conveying assembly; the feeding assembly comprises a feeding pipe connected with the top side of the first conveying cylinder, a first valve is arranged on the feeding pipe, a mixing chamber is connected to the top of the feeding pipe, and a feeding hopper is arranged at the top of the mixing chamber; the second conveying assembly comprises a second conveying cylinder connected with one side of the feeding pipe, and a second valve is arranged on one side of the second conveying cylinder; the film blowing mechanism comprises a first net cover and a second net cover which are connected with one side of the first conveying cylinder and one side of the second conveying cylinder respectively, and one side of the first net cover and one side of the second net cover are connected with connecting pipes. According to the device, the second conveying assembly can be emergently used for feeding work after the first conveying assembly is damaged, and therefore the normal production efficiency of woven bag inner films is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of woven bag production, in particular to a film blowing machine for woven bag production. Background Art

[0002] Woven bags, also known as snakeskin bags, are a type of plastic bag used for packaging. Their raw materials are generally various chemical plastic materials such as polyethylene and polypropylene. The weaving density refers to the number of warp and weft yarns in a 100mm×100mm woven fabric. The film blowing machine heats and melts plastic particles and then blows them into a film. There are many types of film blowing machines, including PE, POF, PVC and so on.

[0003] In order to improve the waterproof performance of woven bags, an inner film is usually required inside the woven bags. A film blowing machine is required to produce the inner film of woven bags. The film blowing machine is composed of a loading mechanism, a feeding mechanism and a film blowing assembly. Usually the feeding mechanism is a screw extruder. The screw extruder is very prone to blockage, failure and other phenomena during use, and needs to be stopped for repairs. When the feeding mechanism is stopped, the subsequent film blowing mechanism will be shut down, thereby affecting the efficiency of the woven bag inner film production and increasing production costs. Improvements are needed. Utility Model Content

[0004] The utility model aims to provide a film blowing machine for producing woven bags, so as to solve the problem in the background art that the film blowing machine has to stop after the feeding mechanism is damaged, which affects the production efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a film blowing machine for woven bag production, comprising a first conveying assembly, the first conveying assembly comprising a base, a first conveying cylinder is arranged on the base, a feeding assembly is arranged on the top side of the first conveying cylinder, a second conveying assembly is arranged on one side of the feeding assembly, and a film blowing mechanism is arranged on one side of the second conveying assembly;

[0006] The feeding assembly comprises a feeding pipe connected to the top side of the first conveying cylinder, a first valve is arranged on the feeding pipe, a mixing chamber is connected to the top of the feeding pipe, and a feeding hopper is arranged on the top of the mixing chamber;

[0007] The second conveying assembly includes a second conveying cylinder connected to one side of the feed pipe, and a second valve is provided on one side of the second conveying cylinder;

[0008] The film blowing mechanism comprises a first mesh cover and a second mesh cover respectively connected to one side of the first conveying cylinder and the second conveying cylinder. One side of the first mesh cover and the second mesh cover is connected to a connecting pipe, and a film blowing mold body is arranged on the top of the connecting pipe.

[0009] Preferably, an interlayer is provided on the upper hopper, a preheating tube is provided in the interlayer, and a rotating motor is installed at the top of the upper hopper.

[0010] Preferably, one end of the rotating motor shaft is connected to a rotating shaft, and a crushing blade and a stirring blade are fixedly connected to the outer wall of the rotating shaft. The crushing blade and the stirring blade are respectively located in the upper hopper and the inside of the mixing chamber.

[0011] Preferably, an interlayer is provided on the second conveying cylinder, a resistance heater is provided in the interlayer, and a feeding screw is rotatably connected inside the second conveying cylinder.

[0012] Preferably, a third valve is provided on the connecting pipe, and one third valve is provided for each of the discharge ports of the second mesh cover and the first mesh cover.

[0013] Preferably, a reduction box and a driving motor are provided on the top side of the base, the driving motor is located on one side of the reduction box, and the reduction box is located on the other side of the first conveying cylinder.

[0014] Preferably, a driving motor and a reduction box are also provided on the other side of the second conveying cylinder.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) This device can use the second conveying component to carry out feeding work in an emergency after the first conveying component is damaged, thereby ensuring the normal production efficiency of the inner film of the woven bag.

[0017] (2) This device arranges a second conveying assembly on top of the first conveying assembly. When the first conveying assembly fails, the first valve and the third valve on the first mesh cover are closed, and the second valve and the third valve on the second mesh cover are opened. Then, the raw materials can be heated inside the upper hopper and directly transported into the second conveying cylinder and into the film blowing mold body, thereby reducing downtime, reducing losses, and controlling costs.

[0018] (3) The device can preheat the raw materials by arranging a preheating tube, a crushing blade and a stirring blade inside the upper hopper, thereby reducing the heating time of the raw materials after entering the second conveying cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a film blowing machine for producing woven bags according to the utility model;

[0020] Figure 2 This is a cross-sectional view of a film blowing machine for producing woven bags according to the utility model;

[0021] Figure 3 The utility model is a top sectional view of the rotating shaft of a film blowing machine for producing woven bags.

[0022] In the figure: 1. feeding assembly; 11. rotating motor; 12. rotating shaft; 13. feeding hopper; 14. preheating tube; 15. crushing blade; 16. stirring blade; 17. mixing chamber; 18. feeding pipe; 19. first valve; 2. second conveying assembly; 21. second valve; 22. second conveying cylinder; 23. resistance heater; 24. feeding screw; 3. film blowing mechanism; 31. film blowing mold body; 32. second mesh cover; 33. connecting pipe; 34. third valve; 35. first mesh cover; 4. first conveying assembly; 41. driving motor; 42. reduction box; 43. first conveying cylinder; 44. base. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 The utility model provides a technical solution: a film blowing machine for woven bag production, including a first conveying assembly 4, the first conveying assembly 4 includes a base 44, a reduction box 42 and a driving motor 41 are arranged on the top side of the base 44, the driving motor 41 is located on one side of the reduction box 42, and the reduction box 42 is located on the other side of the first conveying cylinder 43; a feeding screw 24 is also arranged inside the first conveying cylinder 43 of this structure, and the feeding screw 24 is mainly driven to rotate by the driving motor 41, and the feeding screw 24 pushes the material to move to the right side of the first conveying cylinder 43 during the rotation process; a first conveying cylinder 43 is arranged on the base 44, a feeding assembly 1 is arranged on the top side of the first conveying cylinder 43, a second conveying assembly 2 is arranged on one side of the feeding assembly 1, and a film blowing mechanism 3 is arranged on one side of the second conveying assembly 2;

[0025] The feeding assembly 1 includes a feeding pipe 18 connected to the top side of the first conveying cylinder 43, a first valve 19 is arranged on the feeding pipe 18, a mixing chamber 17 is connected to the top of the feeding pipe 18, and a feeding hopper 13 is arranged on the top of the mixing chamber 17; an interlayer is arranged on the upper hopper 13, a preheating pipe 14 is arranged in the interlayer, and a rotating motor 11 is installed on the top of the upper hopper 13; this structure can preheat the material by arranging the preheating pipe 14, thereby improving the heating efficiency of the raw material and shortening the time for the raw material to enter the first conveying cylinder 43 and the second conveying cylinder 22. Heating time; one end of the rotating motor 11 is connected to the rotating shaft 12, and the outer wall of the rotating shaft 12 is fixedly connected to a crushing blade 15 and a stirring blade 16, and the crushing blade 15 and the stirring blade 16 are respectively located inside the upper hopper 13 and the mixing chamber 17; the rotating motor 11 of this structure is fixed to the top of the upper hopper 13 by a bracket, and the rotating motor 11 can drive the rotating shaft 12 to rotate. During the rotation of the rotating shaft 12, the crushing blade 15 crushes the material, and the stirring blade 16 stirs the material to ensure that the material is melted evenly;

[0026] The second conveying assembly 2 includes a second conveying cylinder 22 connected to one side of the feed pipe 18, an interlayer is provided on the second conveying cylinder 22, a resistance heater 23 is provided in the interlayer, and a feeding screw 24 is rotatably connected inside the second conveying cylinder 22; the resistance heater 23 of this structure is a high-power resistance heater, which can realize the rapid heating and melting of the material inside the second conveying cylinder 22, so that it is suitable for emergency feeding; a driving motor 41 and a reduction box 42 are also provided on the other side of the second conveying cylinder 22; the shaft of the driving motor 41 of this structure is connected to the reduction box 42 through a coupling, and the shaft on one side of the reduction box 42 is connected to one side of the feeding screw 24 inside the second conveying cylinder 22, and a discharge port is provided on the right side of the second conveying cylinder 22; a second valve 21 is provided on one side of the second conveying cylinder 22;

[0027] The film blowing mechanism 3 includes a first mesh cover 35 and a second mesh cover 32 which are respectively connected to one side of the first conveying cylinder 43 and the second conveying cylinder 22. A connecting pipe 33 is connected to one side of the first mesh cover 35 and the second mesh cover 32. A third valve 34 is arranged on the connecting pipe 33. One of the third valves 34 is arranged on the discharge port of the second mesh cover 32 and the first mesh cover 35. This structure can control the discharge of the second mesh cover 32 and the first mesh cover 35 respectively through the two third valves 34. A film blowing mold body 31 is arranged on the top of the connecting pipe 33. By arranging the first conveying cylinder 43 and the second conveying cylinder 22, the first conveying cylinder 43 is in operation during daily work. When a component on the first conveying cylinder 43 fails, the first conveying cylinder 43 can be selected to use the second conveying cylinder 22, thereby alleviating the shutdown during maintenance, which causes the film blowing unit to be shut down for a long time and causes cost waste.

[0028] Working principle: When using the film blowing machine for woven bag production, first, the raw materials are added to the upper hopper 13 for preheating and stirring, and then enter the first conveying cylinder 43 through the feeding pipe 18, and then enter the connecting pipe 33 from the first mesh cover 35 after being conveyed by the first conveying cylinder 43, and then enter the film blowing mold body 31 for film blowing. At this time, the first valve 19 is opened and the second valve 21 is closed. When the components on the first conveying cylinder 43 are damaged, the first valve 19 and the third valve 34 on the side of the first conveying cylinder 43 are closed in time, and the second valve 21 and the third valve 34 on the side of the second conveying cylinder 22 are opened, so that the raw materials preheated and stirred in the upper hopper 13 enter the second conveying cylinder 22, and the raw materials are conveyed by the feeding screw 24 and then enter the film blowing mold body 31 through the second mesh cover 32 and the connecting pipe 33 for film blowing.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A film blowing machine for producing woven bags, comprising a first conveying assembly (4), the first conveying assembly (4) comprising a base (44), a first conveying cylinder (43) being arranged on the base (44), characterized in that: A loading assembly (1) is arranged on the top side of the first conveying cylinder (43), a second conveying assembly (2) is arranged on one side of the loading assembly (1), and a film blowing mechanism (3) is arranged on one side of the second conveying assembly (2); The feeding assembly (1) comprises a feeding pipe (18) connected to the top side of the first conveying cylinder (43), a first valve (19) being arranged on the feeding pipe (18), a mixing chamber (17) being connected to the top of the feeding pipe (18), and a feeding hopper (13) being arranged on the top of the mixing chamber (17); The second conveying assembly (2) comprises a second conveying cylinder (22) connected to one side of the feed pipe (18), and a second valve (21) is provided on one side of the second conveying cylinder (22); The film blowing mechanism (3) comprises a first mesh cover (35) and a second mesh cover (32) respectively connected to one side of the first conveying cylinder (43) and the second conveying cylinder (22); one side of the first mesh cover (35) and the second mesh cover (32) is connected to a connecting pipe (33); and a film blowing mold body (31) is arranged on the top of the connecting pipe (33).

2. The film blowing machine for woven bag production according to claim 1, characterized in that: The upper hopper (13) is provided with an interlayer, a preheating tube (14) is provided in the interlayer, and a rotating motor (11) is installed at the top of the upper hopper (13).

3. The film blowing machine for woven bag production according to claim 2, characterized in that: One end of the shaft of the rotating motor (11) is connected to a rotating shaft (12), and a crushing blade (15) and a stirring blade (16) are fixedly connected to the outer wall of the rotating shaft (12). The crushing blade (15) and the stirring blade (16) are respectively located inside the upper hopper (13) and the mixing chamber (17).

4. The film blowing machine for woven bag production according to claim 1, characterized in that: The second conveying cylinder (22) is provided with an interlayer, a resistance heater (23) is provided in the interlayer, and a feeding screw (24) is rotatably connected inside the second conveying cylinder (22).

5. The film blowing machine for woven bag production according to claim 1, characterized in that: The connecting pipe (33) is provided with a third valve (34), and one third valve (34) is provided with respect to the discharge port of the second mesh cover (32) and the discharge port of the first mesh cover (35).

6. The film blowing machine for woven bag production according to claim 1, characterized in that: A reduction box (42) and a drive motor (41) are arranged on the top side of the base (44); the drive motor (41) is located on one side of the reduction box (42), and the reduction box (42) is located on the other side of the first conveying cylinder (43).

7. The film blowing machine for woven bag production according to claim 1, characterized in that: A driving motor (41) and a reduction gear box (42) are also provided on the other side of the second conveying cylinder (22).

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