Film blowing machine air ring convenient to adjust

Abstract

The utility model discloses a film blowing machine air ring convenient to adjust, which is provided with a base, a middle partition plate and an upper cover plate, an air inlet cavity is enclosed by the base and the middle partition plate, an air guide cavity is enclosed by the middle partition plate and the upper cover plate, an air inlet joint communicated with the air inlet cavity is arranged on the outer side wall of the base, and a first air hole communicated with the air inlet cavity is arranged on the middle partition plate. The first adjusting ring is in threaded connection with the upper cover plate, second air holes communicated with the air guide cavity are formed in the first adjusting ring in a surrounding mode, a first air guide cylinder is placed on the first adjusting ring, the first adjusting ring is in threaded connection with the first adjusting ring, and a first air channel communicated with the second air holes is defined by the first adjusting ring, the second adjusting ring and the first air guide cylinder. A second air duct is arranged on the base, a second air duct is defined by the middle partition plate, the first adjusting ring, the first air duct and the second air duct, and a third air hole communicating the second air duct with the air guide cavity is formed in the middle partition plate. According to the utility model, double-tuyere blowing can be realized, and the sizes of the two tuyeres can be conveniently and independently adjusted.

Description

Technical Field

[0001] This utility model relates to blown film machines, specifically to an easily adjustable blown film machine air ring. Background Technology

[0002] A blown film machine is a piece of equipment used for the production of plastic film materials. The air ring is a crucial component of the blown film machine, used for cooling and shaping the blown film. Traditional air rings use a single air outlet structure, which has limited cooling effect in practical use. Therefore, some air rings on the market can achieve dual air outlets. However, the size of most of these air rings is generally not adjustable. Other air rings with adjustable air outlets can generally only adjust a single air outlet or only allow simultaneous adjustment of two separate outlets; for example, increasing the size of one outlet will decrease the size of the other, which has certain limitations in practical use. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an easily adjustable blown film machine air ring for solving the above-mentioned problems.

[0004] Therefore, this utility model is implemented using the following solution:

[0005] An easily adjustable blown film machine air ring, characterized in that: it includes an outer air ring body, the outer air ring body having a base, a middle partition and a top cover plate, the base and the middle partition plate surrounding an air inlet cavity, the middle partition plate and the top cover plate surrounding an air guide cavity, the outer side wall of the base being provided with an air inlet connector communicating with the air inlet cavity, the middle partition plate being provided with a first air hole communicating with the air inlet cavity, and also includes a first adjusting ring, the first adjusting ring being screwed to the top cover plate, the first adjusting ring being circumferentially provided with a second air hole communicating with the air guide cavity, the first adjusting ring being placed on the first adjusting ring, and also includes a second adjusting ring screwed to the first adjusting ring, the first adjusting ring, the second adjusting ring and the first air guide cavity surrounding a first air duct communicating with the second air hole, the base being provided with a second air guide cavity, the middle partition plate, the first adjusting ring, the first air guide cavity and the second air guide cavity surrounding a second air duct, and the middle partition plate being provided with a third air hole communicating with the second air duct and the air guide cavity.

[0006] The top of the first adjusting ring is provided with a first handle, and the top of the second adjusting ring is provided with a second handle.

[0007] The upper cover plate has a first internal thread in the middle, the outer wall of the first adjusting ring has a first external thread that mates with the first internal thread, the inside of the first adjusting ring has a second internal thread, and the outer wall of the second adjusting ring has a second external thread that mates with the second internal thread.

[0008] The bottom of the first adjusting ring has an extended step, and the first air guide is placed on the step.

[0009] The top of the second adjusting ring is provided with a third air guide duct, and the outer side wall of the third air guide duct is provided with a fourth air hole.

[0010] The above-mentioned technical solution provides an easily adjustable blown film machine air ring that can achieve air outlets from two air ducts, effectively improving the cooling and forming quality. In addition, with the addition of first and second adjusting rings, the rotation of the first or second adjusting ring can be controlled independently, thereby adjusting the size of the first and second air ducts individually. This allows for individual adjustment of the air volume at each air outlet, effectively improving the flexibility of its use. Attached Figure Description

[0011] The present invention includes the following figures:

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a diagram showing the split structure of this utility model;

[0014] Figure 3 This is a cross-sectional view of the present invention. Detailed Implementation

[0015] As shown in the figure, this utility model discloses an easily adjustable blown film machine air ring, characterized by: an outer air ring body having a base 20, a middle partition 16, and a top cover 1; the base 20 and the middle partition 16 enclose an air inlet cavity 21, and the middle partition 16 and the top cover 1 enclose an air guide cavity 22; an air inlet connector 2 communicating with the air inlet cavity 21 is provided on the outer side wall of the base 20; a first air hole 17 communicating with the air inlet cavity 21 is provided on the middle partition 16; and a first adjusting ring 7 is also included, which is screwed to the top cover 1, and a ring is wrapped around the top cover 1. The base 20 is provided with a second air hole 12 communicating with the air guide cavity 22. A first air guide tube 10 is placed on the first adjusting ring 7. The base 20 also includes a second adjusting ring 6 screwed to the first adjusting ring 7. The first adjusting ring 7, the second adjusting ring 6 and the first air guide tube 10 form a first air duct 24 communicating with the second air hole 12. A second air guide tube 19 is provided on the base 20. A second air duct 23 is formed by the middle partition 16, the first adjusting ring 7, the first air guide tube 10 and the second air guide tube 19. A third air hole 18 is provided on the middle partition 16 to communicate with the second air duct 23 and the air guide cavity 22.

[0016] Furthermore, a first handle 8 extends from the top of the first adjusting ring 7, and a second handle 5 extends from the top of the second adjusting ring 6. With the above structure, the first adjusting ring 7 can be easily rotated by holding the first handle 8, and the second adjusting ring 6 can be easily rotated by holding the second handle 5.

[0017] Furthermore, the upper cover plate 1 has a first internal thread 15 in its center, the outer wall of the first adjusting ring 7 has a first external thread 14 that mates with the first internal thread 15, the interior of the first adjusting ring 7 has a second internal thread 11, and the outer wall of the second adjusting ring 6 has a second external thread 9 that mates with the second internal thread 11. With this structure, the upper cover plate 1 and the first adjusting ring 7, as well as the first adjusting ring 7 and the second adjusting ring 6, can be easily connected by screwing.

[0018] Furthermore, the bottom of the first adjusting ring 7 has an extended step 13, on which the first air guide duct 10 is placed. The first air guide duct 10 can be fixedly connected to the step 13 with fasteners to ensure its positional stability and facilitate the assembly and disassembly of the first air guide duct 10.

[0019] Furthermore, a third air guide duct 4 is provided at the top of the second adjusting ring 6, and a fourth air hole 3 is provided around the outer wall of the third air guide duct 4. This can guide the cooling air blown out of the first air duct 24, so that the cooling air can better adhere to the blown film material and improve the cooling quality.

[0020] The working principle of this invention is as follows: Cooling air first enters the air inlet chamber 21 of the air ring through the air inlet connector 2, then enters the air guide chamber 22 through the first air hole 17. Next, part of the cooling air enters the first air duct 24 through the second air hole 12 and is blown out, while another part of the cooling air enters the second air duct 23 through the third air hole 18 and is blown out, achieving dual-outlet airflow. When the size of the first air duct 24 needs to be adjusted, it can be adjusted independently by rotating the second adjusting ring 6. When the size of the second air duct 23 needs to be adjusted, it can be adjusted independently by rotating the first adjusting ring 7.

Claims

1. A blow head for a film blowing machine, the blow head being characterized by: The outer wind ring body has a base (20), an intermediate partition plate (16) and an upper cover plate (1), the base (20) and the intermediate partition plate (16) enclose an air inlet cavity (21), the intermediate partition plate (16) and the upper cover plate (1) enclose a guide air cavity (22), the outer side wall of the base (20) is provided with an air inlet joint (2) in communication with the air inlet cavity (21), the intermediate partition plate (16) is provided with a first air hole (17) in communication with the air inlet cavity (21), and the first adjusting ring (7) is screwed with the upper cover plate (1), the first adjusting ring (7) is provided with a second air hole (12) in communication with the guide air cavity (22) around, the first adjusting ring (7) is placed with a first guide air duct (10), and the second adjusting ring (7) is screwed with the first adjusting ring (7), the first adjusting ring (7), the second adjusting ring (6) and the first guide air duct (10) enclose a first air duct (24) in communication with the second air hole (12), the base (20) is provided with a second guide air duct (19), the intermediate partition plate (16), the first adjusting ring (7), the first guide air duct (10) and the second guide air duct (19) enclose a second air duct (23), and the intermediate partition plate (16) is provided with a third air hole (18) communicating the second air duct (23) and the guide air cavity (22).

2. A blowhead ring for a film blowing machine according to claim 1, wherein: The top of the first adjusting ring (7) is provided with a first handle (8), and the top of the second adjusting ring (6) is provided with a second handle (5).

3. A blowhead ring for a film blowing machine according to claim 1, wherein: The middle of the upper cover plate (1) is provided with a first internal thread (15), the outer wall of the first adjusting ring (7) is provided with a first external thread (14) matched with the first internal thread (15), the inside of the first adjusting ring (7) is provided with a second internal thread (11), and the outer wall of the second adjusting ring (6) is provided with a second external thread (9) matched with the second internal thread (11).

4. A blowhead ring for a film blowing machine according to claim 1, wherein: The bottom of the first adjusting ring (7) has an extended step (13), and the first guide air duct (10) is placed on the step (13).

5. A blowhead ring for a film blowing machine according to claim 1, wherein: The top of the second adjusting ring (6) is provided with a third guide air duct (4), and the outer side wall of the third guide air duct (4) is provided with a fourth air hole (3) around.

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