Multi-stage air cooling device of preservative bag film blowing machine

Abstract

The utility model discloses a multistage air cooling device of a preservative bag film blowing machine, which comprises a mounting ring and a cooling air ring, and mounting rods are symmetrically mounted on the surface of the mounting ring. The cooling air ring and the air uniformizing net are adopted, the whole cooling air ring is modularized, the complete cooling air ring can be formed through insertion and bolt fastening of the two sets of basic rings and the multiple sets of expansion rings, and when the cooling air ring is damaged in follow-up use, the cooling air ring is not damaged. Personnel only need to replace the foundation ring or the expansion ring at the corresponding position without affecting other intact structures, so that the maintenance loss can be effectively reduced, the maintenance cost is reduced, and better use is facilitated; the flexibility of the whole air ring is effectively improved due to the adjustable design of the cooling air ring and the detachable design of the air equalizing net, different requirements of personnel can be better met, the use effect of the device is improved, the maintenance loss is small, and the adjustability is high.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, and more specifically, to a multi-stage air-cooling device for a blown film machine for food preservation bags. Background Technology

[0002] A blown film machine is a device that heats and melts plastic particles and then blows them into a thin film. A blown film machine for food storage bags is one type specifically designed for producing food storage bags. It uses an extrusion blown film process, where molten plastic is continuously extruded through a die under specific temperature and shear force. The film is then inflated by compressed air, cooled by an air ring, and traction is achieved through frequency conversion to obtain a double-folded film.

[0003] The existing publicly available technology, application number CN202022292062.8, describes an air-cooling device for a polymer blown film machine. This device incorporates a flow divider. Airflow from the outlet holes impacts the flow divider, with some airflow blowing onto the material through the ventilation holes to cool it. The remaining airflow impacts the spherical surface of the flow divider, dispersing the impact force and preventing direct airflow from the outlet holes onto the material. This effectively solves the problem of direct airflow impact affecting the material's processing effect. Furthermore, a cooling pipe cools the airflow within the cavity between the outer and inner pipes of the air ring, and then the cooled airflow is used to blow onto the material, achieving rapid cooling and significantly improving the cooling effect.

[0004] However, the above-mentioned patent still has certain drawbacks in use: the existing cooling air ring structure is fixed and cannot be flexibly adjusted. Once damaged, it needs to be replaced as a whole, which not only increases the maintenance cost but also causes damage to the intact parts, resulting in poor maintenance. Moreover, the air volume cannot be adjusted well, which makes it unsuitable for the production and cooling of different food storage bags, reducing the applicability of the structure and making the overall use effect not ideal.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a multi-stage air-cooling device for a food preservation bag blown film machine, which has the advantages of low maintenance and wear, high adjustability, and wide applicability, thereby solving the problems mentioned in the background technology.

[0007] To achieve the advantages of low maintenance costs, high adjustability, and wide applicability, the specific technical solution adopted by this utility model is as follows:

[0008] The multi-stage air-cooling device of the plastic bag blown film machine includes an installation ring and a cooling air ring. The installation ring has symmetrically installed installation rods on its surface. Several sets of cooling air rings are slidably connected to the outer circumference of the installation rods. The cooling air ring is composed of a base ring and an extension ring. A movable block is fixedly installed on one end of the surface of the base ring. A connecting groove is opened on one side of the surface of the base ring and the extension ring. A connecting strip is installed on the other side of the surface of the base ring and the extension ring.

[0009] Furthermore, the inner surface of the base ring and the inner surface of the extension ring are both bolted with a uniform air mesh.

[0010] Furthermore, an air supply pipe is installed on one side surface of the base ring.

[0011] Furthermore, positioning holes are provided on both the surface of the mounting rod and the surface of the moving block, and the positioning holes are fixed by bolts.

[0012] Furthermore, a mating groove is provided at the middle position of one side surface of the base ring and at the middle position of one side surface of the extension ring.

[0013] Furthermore, a mating strip is installed at the middle position of the other side surface of the base ring and at the middle position of the other side surface of the extension ring.

[0014] Furthermore, threaded holes are provided on both the surface of the mating groove and the surface of the mating strip.

[0015] Furthermore, the gas distribution network has openings on its surface for gas flow.

[0016] Compared with the prior art, this utility model provides a multi-stage air-cooling device for a food preservation bag blown film machine, which has the following beneficial effects:

[0017] (1) This utility model adopts a cooling air ring and an air distribution network. The entire cooling air ring adopts a modular design. A complete cooling air ring can be formed by the insertion and bolting of two sets of base rings and multiple sets of extension rings. When damage occurs in subsequent use, the personnel only need to replace the corresponding base ring or extension ring without affecting the other intact structures. This can effectively reduce maintenance losses and reduce maintenance costs, making it easier to use. Moreover, the adjustable design of the cooling air ring and the detachable design of the air distribution network effectively improve the flexibility of the entire air ring, better meet the different needs of personnel, improve the use effect of the device, and have the advantages of low maintenance losses and strong adjustability.

[0018] (2) By adopting a gas equalization net, the gas equalization net can be flexibly disassembled and replaced according to the different types of fresh food bags that need to be cooled during the cooling process. By replacing the gas equalization net with different apertures, the outflow of gas can be changed, thereby changing the cooling effect, thus meeting diverse production needs, improving the applicability of the device, and having the advantage of wide applicability. 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 embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the multi-stage air-cooling device for the blown film machine for food preservation bags proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the cooling air ring structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the mounting ring of this utility model;

[0023] Figure 4 This is a schematic diagram of the gas distribution network of this utility model.

[0024] In the picture:

[0025] 1. Mounting ring; 2. Cooling air ring; 3. Threaded hole; 4. Moving block; 5. Positioning hole; 6. Connecting groove; 7. Connecting strip; 8. Air supply pipe; 9. Base ring; 10. Expansion ring; 11. Connecting groove; 12. Connecting strip; 13. Air distribution network; 14. Mounting rod. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to an embodiment of the present invention, a multi-stage air-cooling device for a food preservation bag blown film machine is provided.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, the multi-stage air-cooling device for the blown film machine of the food preservation bag according to an embodiment of the present invention includes an installation ring 1 and a cooling air ring 2. Installation rods 14 are symmetrically installed on the surface of the installation ring 1. Several sets of cooling air rings 2 are slidably connected to the outer periphery of the installation rods 14. The cooling air ring 2 is composed of a base ring 9 and an extension ring 10. A movable block 4 is fixedly installed on one end of the surface of the base ring 9. A connecting groove 11 is opened on one side of the surface of the base ring 9 and the extension ring 10. A connecting strip 12 is installed on the other side of the surface of the base ring 9 and the extension ring 10. The matching arrangement of the connecting groove 11 and the connecting strip 12 is to realize the gas flow between multiple rings, so that the cooling gas introduced by the air supply pipe 8 can flow into the rings at different positions and then flow out from the corresponding air distribution net 13, thereby realizing the comprehensive air-cooling treatment of the food preservation bag and improving the overall cooling quality.

[0029] In one embodiment, the inner surface of the base ring 9 and the inner surface of the extension ring 10 are both bolted with a uniform air distribution mesh 13. The uniform air distribution mesh 13 is designed to distribute the cooling gas evenly onto the preservation bag, thereby improving the air cooling quality.

[0030] In one embodiment, an air supply pipe 8 is installed on one side surface of the base ring 9. The air supply pipe 8 is designed to introduce clean cooling gas, which can then flow out through the air distribution net 13 and act on the preservation bag to achieve air cooling of the preservation bag.

[0031] In one embodiment, positioning holes 5 are provided on the surface of the mounting rod 14 and the surface of the movable block 4, and the positioning holes 5 are fixed by bolts. The positioning holes 5 are provided to fix the cooling air ring 2, thereby facilitating the subsequent air cooling operation of the preservation bag. Since there are multiple sets of cooling air ring 2, multi-stage air cooling operation can be achieved, improving the overall air cooling effect of the preservation bag and making it easier to use.

[0032] In one embodiment, a mating groove 6 is provided at the middle position of one side surface of the base ring 9 and at the middle position of one side surface of the extension ring 10.

[0033] In one embodiment, a mating strip 7 is installed at the middle position of the other side surface of the base ring 9 and the middle position of the other side surface of the extension ring 10. The mating strip 7 and the mating groove 6 are matched to realize the pairing of the base ring 9 and the extension ring 10 to achieve the structure of the cooling air ring 2.

[0034] In one embodiment, threaded holes 3 are provided on both the surface of the mating groove 6 and the surface of the mating strip 7. The threaded holes 3 are provided to facilitate the installation and use of bolts, thereby achieving the fastening between structures and ensuring the stability of use.

[0035] In one embodiment, the surface of the air distribution mesh 13 is provided with openings for gas flow. The openings are designed to facilitate the outflow of cooling gas, thereby enabling the air-cooling operation of the preservation bag. Furthermore, the size of the openings on the surface of the air distribution mesh 13 can be adjusted according to personnel needs, and the air distribution mesh 13 is detachable. Therefore, personnel can replace it according to different needs, expanding the applicability of the device and meeting the production needs of different models of preservation bags.

[0036] Working Principle: In actual use, clean gas for cooling can be introduced through the air supply pipe 8. This clean gas moves along the cavity inside the cooling air ring 2 and eventually flows out from the gas distribution mesh 13 at different locations, thus cooling the moving food storage bags inside the cooling air ring 2. Furthermore, during cooling, personnel can flexibly disassemble and replace the gas distribution mesh 13 according to the type of food storage bag requiring cooling. By replacing the gas distribution mesh 13 with different apertures, the gas outflow can be changed, thereby changing the cooling effect, thus meeting diverse production needs and expanding the applicability of the device. In addition, the entire cooling air ring 2 adopts... Using a modular design, a complete cooling air ring 2 can be formed by plugging in two sets of base rings 9 and multiple sets of extension rings 10 and fastening them with bolts. If damage occurs during subsequent use, personnel only need to replace the corresponding base ring 9 or extension ring 10 without affecting the rest of the intact structure. This effectively reduces maintenance losses and lowers maintenance costs, making it easier to use. Moreover, the adjustable design of the cooling air ring 2 and the detachable design of the air distribution network 13 effectively improve the flexibility of the entire air ring, better meeting the different needs of personnel and improving the use effect of the device. It has the advantages of low maintenance losses, strong adjustability, and wide applicability.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage air cooling device for a preservative bag blown film machine, comprising a mounting ring (1) and a cooling air ring (2), characterized in that, The mounting ring (1) is symmetrically mounted with mounting rods (14) on its surface. Several sets of cooling air rings (2) are slidably connected to the outer periphery of the mounting rods (14). The cooling air rings (2) are composed of a base ring (9) and an extension ring (10). A moving block (4) is fixedly mounted on one end of the surface of the base ring (9). A connecting groove (11) is opened on one side of the surface of the base ring (9) and the extension ring (10). A connecting strip (12) is installed on the other side of the surface of the base ring (9) and the extension ring (10).

2. The multi-stage air cooling device of the preservative bag blown film machine according to claim 1, characterized in that, The inner surface of the base ring (9) and the inner surface of the extension ring (10) are both bolted to the air distribution mesh (13).

3. The multi-stage air cooling device of the preservative bag blown film machine according to claim 1, characterized in that, An air supply pipe (8) is installed on one side surface of the base ring (9).

4. The multi-stage air cooling device of the preservative bag blown film machine according to claim 1, characterized in that, Positioning holes (5) are provided on the surface of the mounting rod (14) and the surface of the moving block (4), and the positioning holes (5) are fixed by bolts.

5. The multi-stage air cooling device of the preservative bag blown film machine according to claim 1, characterized in that, A mating groove (6) is provided at the middle position of one side surface of the base ring (9) and at the middle position of one side surface of the expansion ring (10).

6. The fresh-keeping bag blown film machine multi-stage air cooling device according to claim 1, characterized in that, A mating strip (7) is installed at the middle position of the other side surface of the base ring (9) and the middle position of the other side surface of the expansion ring (10).

7. The fresh-keeping bag blown film machine multi-stage air cooling device according to claim 5, characterized in that, Threaded holes (3) are provided on the surface of the docking groove (6) and the surface of the docking strip (7).

8. The fresh-keeping bag blown film machine multi-stage air cooling device according to claim 2, characterized in that, The gas distribution mesh (13) has openings on its surface for gas flow.

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