Special film blowing machine for packaging film processing

Abstract

The utility model provides a special film blowing machine for packaging film processing, and relates to the technical field of film blowing machines, the special film blowing machine comprises an outer mounting frame, an upper support frame and a film blowing machine, the bottom of the outer mounting frame is provided with a base, the left and right parts of the upper end face of the base are both fixedly provided with two groups of support columns, and the upper ends of the support columns are fixedly provided with a top plate; an upper supporting frame is fixed to the right portion of the upper end face of the top plate, a film blowing machine is arranged in the middle of the upper end face of the base, feeding channels are arranged on the front side and the rear side of the lower portion of the film blowing machine, four rectangular frames are installed between supporting columns on the left side and the right side of an outer installation frame, and two stroke limiting telescopic air cylinders are installed on the left portion and the right portion of each rectangular frame. The guide width of a blow-molded packaging film can be conveniently and flexibly adjusted, the guide is accurate, smooth and stable, materials are conveyed to the blow molding machine in two directions, the blow molding efficiency is improved, blow molding is more uniform and stable, the quality of the packaging film is guaranteed, and the device is more efficient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of film blowing machines, and particularly relates to a film blowing machine special for packaging film processing. Background Art

[0002] A film blowing machine is a device used in the field of plastic packaging film manufacturing that heats and melts plastic particles and then blows them into films. The function of the air ring is to cool the packaging film extruded from the die head and blown into shape. The cooling medium is air, and at the same time, the blown air flow plays a role in supporting the packaging film.

[0003] In the specification of an improved film blowing machine for plastic packaging film manufacturing in the prior art (publication number CN207415980U), it is mentioned that "a cross beam I, a cross beam II and a cross beam III are installed on the support frame. The cross beam I, the cross beam II and the cross beam III are installed in sequence from bottom to top. A plastic extruder is arranged below the cross beam I. A film blowing device is arranged on the right side of the plastic extruder. The film blowing device includes a film blowing machine, an air ring and a steady flow cover. The film blowing machine is arranged at the bottom of the film blowing device. The head of the plastic extruder is connected to the film blowing machine. The air ring is arranged above the film blowing machine. A steady flow cover is arranged above the air ring. A herringbone symmetric clamp is arranged above the steady flow cover". However, the blowing of the existing film blowing machine is not uniform, which may affect the blowing quality of the packaging film, and the blowing efficiency is not high, so it is not efficient and practical. Content of the Utility Model

[0004] In order to overcome the defects existing in the prior art, a film blowing machine special for packaging film processing is provided herein to solve the problems that the blowing of the existing film blowing machine is not uniform, which may affect the blowing quality of the packaging film, and the blowing efficiency is not high, so it is not efficient and practical.

[0005] To achieve the above object, a film blowing machine special for packaging film processing is provided, which includes an outer mounting frame, an upper support frame and a film blowing machine. A base is arranged at the bottom of the outer mounting frame, and two groups of support columns are fixed on the left and right parts of the upper end surface of the base. The upper ends of the support columns are fixed with a top plate, and an upper support frame is fixed on the right part of the upper end surface of the top plate. A film blowing machine is arranged in the middle of the upper end surface of the base, and feeding channels are arranged on the front and rear sides of the lower part of the film blowing machine.

[0006] Four rectangular frames are installed between the support columns on the left and right sides of the outer mounting frame. Two groups of stroke limit telescopic cylinders are installed on the left and right parts of each rectangular frame, and the front ends of the stroke limit telescopic cylinders are sleeved on the outer ends of the lower guide rollers. A middle connecting rod is connected between the four rectangular frames on the left and right sides of the outer mounting frame. Upper connecting plates are arranged on the left and right sides of the upper end surface of the upper rectangular frame, and the other ends of the upper connecting plates are fixed on the same-side support columns. Lower connecting plates are fixed on the left and right sides of the lower end surface of the lower rectangular frame, and the other ends of the lower connecting plates are fixed on the same-side support columns.

[0007] Further, a through opening is formed in the middle of the top plate, and a left guiding roller and a right guiding roller are arranged in the middle of the through opening.

[0008] Further, two groups of upper support legs are arranged at the lower part of the upper support frame, and multiple groups of upper guiding rollers are sleeved on the upper support frame.

[0009] Further, an outer jacket plate is sleeved on the upper part of the blown film machine. Lower support rods are fixed at the four corners of the lower end surface of the outer jacket plate. A blow molding head is arranged at the upper end of the blown film machine. Multiple groups of air inlet openings are annularly arranged on the outer circumferential surface of the blow molding head. And a blow molding nozzle is arranged above the blow molding head.

[0010] Further, a motor is installed at the rear end of the feeding channel. A rotating shaft is installed at the front end of the motor. Multiple groups of spiral conveying paddles are arranged on the rotating shaft. The rotating shaft and the spiral conveying paddles are rotatable structures. And a feeding hopper is arranged above the feeding channel. The feeding hopper is communicated with the feeding channel.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, a stroke-limiting telescopic air cylinder and a lower guiding roller are arranged in a rectangular frame installed between four groups of support columns. They gradually approach from bottom to top until they are guided between the left guiding roller and the right guiding roller. Moreover, the stroke-limiting telescopic air cylinder can be appropriately extended or shortened by a certain length, flexibly adjusting the distance between the two lower guiding rollers on both sides. It is convenient for the blown packaging film to be centrally guided and conveyed from the upper part after being blown, more quickly and stably.

[0013] 2. The arrangement of the upper guiding rollers on the upper support frame in the present utility model facilitates the horizontal conveyance of the packaging film conveyed between the left guiding roller and the right guiding roller to the lower right side, making the conveyance of the packaging film smoother and more stable.

[0014] 3. In the present utility model, multiple groups of air inlet openings are annularly arranged on the outer circumferential surface of the blow molding head, and the blow molding is more uniform and rapid. And feeding channels are arranged on the front and rear sides of the lower part of the blown film machine, and the two-way conveyance of materials is more rapid and convenient, and smooth without blockage, which helps to improve the working efficiency of the blown packaging film. Description of the Drawings

[0015] Figure 1 It is a front view schematic diagram of the blown film machine according to an embodiment of the present utility model located at the lower part of the outer mounting frame;

[0016] Figure 2 It is a schematic diagram of the outer mounting frame according to an embodiment of the present utility model;

[0017] Figure 3 It is a front view schematic diagram of the blown film machine according to an embodiment of the present utility model;

[0018] Figure 4 Schematic diagram of the feeding channel structure on the front and rear sides of the lower part of the blown film machine according to an embodiment of the present utility model.

[0019] In the figure: 1. Outer mounting frame; 10. Base; 11. Support column; 12. Lower connecting plate; 13. Rectangular frame; 14. Stroke limiting telescopic cylinder; 15. Lower guide roller; 16. Middle connecting rod; 17. Upper connecting plate; 18. Top plate; 19. Through hole; 100. Left guide roller; 101. Right guide roller; 2. Upper support frame; 20. Upper guide roller; 21. Upper support leg; 3. Blown film machine; 30. Screw conveyor paddle; 31. Outer jacket plate; 32. Blowing head; 33. Air inlet pipe opening; 34. Blowing nozzle; 35. Lower support rod; 36. Feeding channel; 37. Rotating shaft; 38. Feed hopper; 39. Motor. Detailed implementation manners

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Specific details such as specific system structures and technologies are proposed to more thoroughly understand the embodiments of the present utility model. The described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. However, those skilled in the art should clearly understand that the present utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present disclosure.

[0021] The following will describe the detailed implementation manners of the present utility model with reference to the accompanying drawings.

[0022] Figure 1 Front view schematic diagram of the blown film machine located at the lower part of the outer mounting frame according to an embodiment of the present utility model, Figure 2 Schematic diagram of the outer mounting frame according to an embodiment of the present utility model, Figure 3 Front view schematic diagram of the blown film machine according to an embodiment of the present utility model and Figure 4 Schematic diagram of the feeding channel structure on the front and rear sides of the lower part of the blown film machine according to an embodiment of the present utility model.

[0023] Refer to Figures 1 to 4As shown in the figure, the utility model provides a film blowing machine dedicated to packaging film processing, which includes an outer mounting frame 1, an upper support frame 2 and a film blowing machine 3. A base 10 is arranged at the bottom of the outer mounting frame 1, and two groups of support columns 11 are fixed on the left and right parts of the upper end surface of the base 10. The upper ends of the support columns 11 are fixed with a top plate 18, and the upper support frame 2 is fixed on the right part of the upper end surface of the top plate 18. The film blowing machine 3 is arranged in the middle of the upper end surface of the base 10, and feeding channels 36 are arranged on the front and rear sides of the lower part of the film blowing machine 3.

[0024] In this embodiment, four rectangular frames 13 are installed between the support columns 11 on the left and right sides of the outer mounting frame 1. Two groups of stroke-limiting telescopic cylinders 14 are installed on the left and right parts of the rectangular frame 13, and the front ends of the stroke-limiting telescopic cylinders 14 are sleeved on the outer ends of the lower guide rollers 15. A middle connecting rod 16 is connected between the four rectangular frames 13 on the left and right sides of the outer mounting frame 1. Upper connecting plates 17 are arranged on the left and right sides of the upper end surface of the upper rectangular frame 13, and the other ends of the upper connecting plates 17 are fixed on the support columns 11 on the same side. Lower connecting plates 12 are fixed on the left and right sides of the lower end surface of the lower rectangular frame 13, and the other ends of the lower connecting plates 12 are fixed on the support columns 11 on the same side.

[0025] As a preferred embodiment, stroke-limiting telescopic cylinders 14 and lower guide rollers 15 are arranged in the rectangular frames 13 installed between the four support columns 11 of the utility model. They gradually approach from bottom to top until they are guided between the left guide roller 100 and the right guide roller 101. Moreover, the stroke-limiting telescopic cylinders 14 can be appropriately extended or shortened by a certain length to flexibly adjust the distance between the two lower guide rollers 15 on both sides, which is convenient for the packaging film to be concentratedly guided and conveyed from the upper part after blow molding and unfolding, making it faster and more stable.

[0026] In this embodiment, a through hole 19 is opened in the middle of the top plate 18, and a left guide roller 100 and a right guide roller 101 are arranged in the middle of the through hole 19. Two upper support legs 21 are arranged at the lower part of the upper support frame 2, and multiple upper guide rollers 20 are sleeved on the upper support frame 2.

[0027] As a preferred embodiment, the arrangement of the upper guide rollers 20 on the upper support frame 2 of the utility model is convenient for horizontally conveying the packaging film conveyed between the left guide roller 100 and the right guide roller 101 to the lower right side, making the conveying of the packaging film smoother and more stable.

[0028] In this embodiment, an outer jacket plate 31 is sleeved on the upper part of the blown film machine 3. Lower support rods 35 are fixed at the four corners of the lower end face of the outer jacket plate 31. A blow molding head 32 is arranged at the upper end of the blown film machine 3. A plurality of groups of air inlet ports 33 are annularly arranged on the outer circumferential surface of the blow molding head 32. And a blow molding nozzle 34 is arranged above the blow molding head 32; A motor 39 is installed at the rear end of the feeding channel 36. A rotating shaft 37 is installed at the front end of the motor 39. And a plurality of groups of spiral conveying paddles 30 are arranged on the rotating shaft 37. The rotating shaft 37 and the spiral conveying paddles 30 are rotatable structures. And a feeding hopper 38 is arranged above the feeding channel 36. The feeding hopper 38 is communicated with the feeding channel 36.

[0029] As a preferred embodiment, in the present utility model, a plurality of groups of air inlet ports 33 are annularly arranged on the outer circumferential surface of the blow molding head 32, so that the blowing is more uniform and rapid. And feeding channels 36 are arranged on the front and rear sides of the lower part of the blown film machine 3. The two-way conveying of materials is more rapid and convenient, and smooth without blockage, which helps to improve the working efficiency of the blown film of the packaging film.

[0030] The present utility model can effectively solve the problems in the prior art that the blowing of the blowing machine is not uniform, which may affect the blowing quality of the packaging film, and the blowing efficiency is not high, and it is not efficient and practical. The present utility model is convenient for flexibly adjusting the guiding width of the blown packaging film, and the guiding is accurate, smooth and stable. And the materials are conveyed to the blowing machine in two directions, which helps to improve the blowing efficiency. At the same time, the blowing is more uniform and stable, which helps to ensure the quality of the packaging film, and is more efficient and practical.

[0031] The above embodiments are used to explain the present utility model, rather than to limit the utility model. Any modifications and changes made to the present utility model within the spirit of the present utility model and the scope of the claimed rights should be included in the protection scope of the present utility model.

Claims

1. A blown film machine dedicated to the processing of packaging films, characterized in that: It includes an outer mounting frame (1), an upper support frame (2) and a film blowing machine (3). A base (10) is provided at the bottom of the outer mounting frame (1), and two groups of support columns (11) are fixed on the left and right parts of the upper end surface of the base (10). The upper ends of the support columns (11) are fixed with a top plate (18), and the upper support frame (2) is fixed on the right part of the upper end surface of the top plate (18). The film blowing machine (3) is arranged in the middle of the upper end surface of the base (10), and feeding channels (36) are arranged on the front and rear sides of the lower part of the film blowing machine (3). Four groups of rectangular frames (13) are installed between the support columns (11) on the left and right sides of the outer mounting frame (1). Two groups of stroke limiting telescopic cylinders (14) are installed on the left and right parts of the rectangular frame (13), and the front ends of the stroke limiting telescopic cylinders (14) are sleeved on the outer ends of the lower guide rollers (15). A middle connecting rod (16) is connected between the four groups of rectangular frames (13) on the left and right sides of the outer mounting frame (1). Upper connecting plates (17) are arranged on the left and right sides of the upper end surface of the upper rectangular frame (13), and the other ends of the upper connecting plates (17) are fixed on the support columns (11) on the same side. Lower connecting plates (12) are fixed on the left and right sides of the lower end surface of the lower rectangular frame (13), and the other ends of the lower connecting plates (12) are fixed on the support columns (11) on the same side.

2. The blown film machine dedicated to the processing of packaging films according to claim 1, wherein, A through hole (19) is formed in the middle of the top plate (18), and a left guide roller (100) and a right guide roller (101) are arranged in the middle of the through hole (19).

3. The blown film machine dedicated to the processing of packaging films according to claim 1, wherein, Two groups of upper support legs (21) are arranged at the lower part of the upper support frame (2), and multiple groups of upper guide rollers (20) are sleeved on the upper support frame (2).

4. A special blown film machine for packaging film processing according to claim 1, characterized in that, An outer jacket plate (31) is sleeved on the upper part of the film blowing machine (3). Lower support rods (35) are fixed at the four corners of the lower end surface of the outer jacket plate (31). A blow molding head (32) is arranged at the upper end of the film blowing machine (3). Multiple groups of air inlet ports (33) are annularly arranged on the outer ring surface of the blow molding head (32), and a blow molding nozzle (34) is arranged above the blow molding head (32).

5. A blown film machine dedicated to the processing of packaging films according to claim 1, characterized in that, A motor (39) is installed at the rear end of the feeding channel (36), a rotating shaft (37) is installed at the front end of the motor (39), and multiple groups of spiral conveying paddles (30) are arranged on the rotating shaft (37). The rotating shaft (37) and the spiral conveying paddles (30) are rotatable structures. An inlet hopper (38) is arranged above the feeding channel (36), and the inlet hopper (38) is communicated with the feeding channel (36).

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