Split blowing head convenient to maintain

Abstract

The utility model discloses a split blowing head convenient to maintain, which comprises a blowing pipe and a blowing needle head, the blowing pipe is embedded in the blowing needle head, the blowing needle head is provided with a blowing port corresponding to the blowing pipe, a cooling sleeve is arranged on the outer side of the blowing pipe, a cooling channel is formed between the cooling sleeve and the blowing pipe, and two end parts of the cooling sleeve are fixed with the blowing pipe in a sealing manner. And the blowing needle head is detachably fixed with the cooling sleeve. And the convenience of installation and maintenance can be guaranteed through the cooling sleeve and the blowing needle head which are arranged in a split manner. And meanwhile, the cooling sleeve and the air blowing pipe are fixed in a sealed mode, so that a cooling channel between the cooling sleeve and the air blowing pipe has better sealing performance and stability, leakage is reduced, and the reliability of cooling the air blowing pipe is improved. And a wear-resistant pad can be arranged between the cooling sleeve and the blowing needle head which are detachably matched, so that the service life of the blowing head is prolonged.

Description

Technical Field

[0001] The utility model particularly relates to a split air blowing head which is easy to maintain. Background Art

[0002] During the blow molding process, the blow head needs to cooperate with the mold to achieve blow molding, that is, the blow head is inserted into the mold to blow air inside the mold to form the product. During use, the blow head may overheat, so it is necessary to cool the blow head. The existing blow head is integrated with a cooling channel, and the cooling channel is sealed with a sealing ring. After long-term use, leakage may occur, which may easily lead to poor blowing effect and even coolant entering the mold. Figure 1 At the same time, the existing design of the air blowing pipe b is deeply embedded in the air blowing head a, so there is an inconvenience in disassembly and maintenance after assembly. In order to solve the above problem, a split air blowing head that is easy to maintain is proposed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a split air blowing head which has a simple structure, good sealing effect and is easy to maintain.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: a split air blowing head that is easy to maintain, including an air blowing pipe and a air blowing needle head, the air blowing pipe is embedded in the air blowing needle head, the air blowing needle head is provided with an air blowing port corresponding to the air blowing pipe, a cooling sleeve is provided on the outside of the air blowing pipe, a cooling channel is formed between the cooling sleeve and the air blowing pipe, the two ends of the cooling sleeve are sealed and fixed to the air blowing pipe, and the air blowing needle head and the cooling sleeve are detachably fixed.

[0005] Preferably, the upper end of the cooling sleeve is provided with a clamping platform, the outer side of the cooling sleeve is provided with a wear-resistant pad, and the blowing needle head cooperates with the clamping platform to press the wear-resistant pad; the advantage is that the wear-resistant pad can effectively ensure the reliability of the cooperation between the blowing head and the mold, and when the wear-resistant pad is worn, it can be directly replaced and maintained, avoiding the situation of replacing the blowing head as a whole in the prior art, thereby reducing maintenance costs.

[0006] Furthermore, the abutment platform protrudes outward from the blow needle head; the advantage is that the abutment platform can support the wear-resistant pad to ensure the fit with the mold.

[0007] Preferably, the two ends of the cooling jacket are sealed and fixed to the blowing pipe by welding; the advantage is that the sealing and stability can be effectively improved by welding, thereby ensuring the sealing effect.

[0008] Furthermore, a solder groove is formed between the upper and lower ends of the cooling jacket and the air blowing pipe; the advantage is that the upper and lower end surfaces can be made flat after welding by the provided solder groove, which is convenient for subsequent assembly.

[0009] Preferably, a sealing groove is provided on the inner side of the blow needle head, a sealing ring is embedded in the sealing groove, and the upper portion of the cooling jacket is in sealing cooperation with the sealing ring.

[0010] Preferably, the blow needle head and the cooling jacket are threadedly connected. The advantage is that the threaded blow needle head and the cooling jacket can improve the convenience of assembly and maintenance.

[0011] Preferably, the cooling channel includes a left channel, a right channel and a connecting channel, and the left channel and the right channel are located on both sides of the blowing pipe, and the left channel and the right channel are connected through a connecting channel located at the upper part of the cooling channel; the advantage is that the contact area between the coolant and the blowing pipe can be increased by setting the left channel, the right channel and the connecting channel, thereby improving the cooling effect.

[0012] Furthermore, the cooling sleeve is provided with a first through hole connected to the left channel, and a second through hole connected to the right channel; the advantage is that the first through hole and the second through hole can facilitate the flow of coolant in the cooling channel, thereby ensuring the heat dissipation effect.

[0013] Preferably, the lower part of the blowing pipe passes through the cooling jacket, and an assembly seat is fixed to the lower part of the blowing pipe, and the assembly seat is provided with a blowing channel connected to the blowing pipe; the advantage is that the stability of the air supply in the blowing pipe and the stability of the blowing head after assembly can be effectively improved by setting the assembly seat.

[0014] Compared with the existing technology, the advantage of this invention is that the separate cooling jacket and blow needle ensure convenient installation and maintenance. At the same time, the sealed and fixed cooling jacket and blow pipe make the cooling channel between them more sealed and stable, thereby reducing the possibility of leakage and improving the reliability of the blow pipe cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a cross-sectional schematic diagram of a conventional air blowing head;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 for Figure 2 Schematic diagram of the cross-section structure;

[0019] Figure 4 This is a schematic diagram of the cooperation between the cooling jacket and the blowing needle head of the utility model;

[0020] Figure 5 for Figure 4 Schematic diagram of the cross-section structure along AA;

[0021] Figure 6 for Figure 4 Schematic diagram of the explosion structure. DETAILED DESCRIPTION

[0022] The present invention is described in further detail below with reference to the accompanying drawings.

[0023] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0024] As attached Figure 2-6 The illustrated embodiment shows a split air blow head that is easy to maintain, comprising an air blow pipe 1 and a blow needle head 2. The air blow pipe 1 is embedded in the blow needle head 2. The blow needle head 2 is provided with an air blow port 2.1 corresponding to the air blow pipe 1. A cooling jacket 3 is provided on the outside of the air blow pipe 1. A cooling channel is formed between the cooling jacket 3 and the air blow pipe 1. The two ends of the cooling jacket 3 are sealed and fixed to the air blow pipe 1, and the blow needle head 2 and the cooling jacket 3 are detachably fixed. The split cooling jacket 3 and the blow needle head 2 ensure the convenience of installation and maintenance. At the same time, the sealed and fixed cooling jacket 3 and the air blow pipe 1 provide the cooling channel therebetween with better sealing and stability, thereby reducing the occurrence of leakage and improving the reliability of cooling the air blow pipe 1.

[0025] During the process of the blow head and the mold being matched, the blow head needs to be inserted into the mold to blow air. During the insertion process, hard contact will occur, which will cause wear after long-term use. The existing integral blow head needs to be reassembled after wear, resulting in high maintenance costs. In order to solve this problem, on the basis of the above, the upper end of the cooling sleeve 3 is provided with a clamping platform 3.1, and the outer side of the cooling sleeve 3 is provided with a wear-resistant pad 4. The blow needle 2 cooperates with the clamping platform 3.1 to press the wear-resistant pad 4. The wear-resistant pad 4 can effectively ensure the reliability of the blow head and the mold, and when the wear-resistant pad 4 is worn, it can be directly replaced and maintained, avoiding the situation of replacing the blow head as a whole in the existing technology, reducing maintenance costs. Among them, in order to ensure the reliability of the blow head and the mold, the clamping platform 3.1 protrudes outward from the blow needle 2. This allows the clamping platform 3.1 to support the wear-resistant pad 4 while also ensuring the fit with the mold.

[0026] The upper and lower ends of the cooling jacket 3 of the utility model are sealed and fixed to the blowing pipe 1 by welding, which can effectively improve the sealing and stability and ensure the sealing effect. It is worth noting that solder grooves are formed between the upper and lower ends of the cooling jacket 3 and the blowing pipe 1. The solder grooves are provided to place solder and are easy to polish after welding to make the upper and lower end surfaces smooth, facilitating subsequent assembly.

[0027] In order to ensure the reliability of blowing, a sealing groove 2.2 is opened on the inner side of the blowing needle head 2, and a sealing ring 2.3 is embedded in the sealing groove 2.2. The upper part of the cooling jacket 3 is sealed with the sealing ring.

[0028] The blow needle head 2 and the cooling jacket 3 of the present invention are screw-connected, which can improve the convenience of assembly and maintenance. Of course, other matching methods can also be used, such as snap-fit.

[0029] It's worth noting that the cooling channels of the present invention include a left channel 5.1, a right channel 5.2, and a connecting channel 5.3. These channels are located on either side of the air blowpipe 1 and are interconnected via the connecting channel 5.3, located above the cooling channels. These channels increase the contact area between the coolant and the air blowpipe 1, thereby enhancing the cooling effect. Specifically, the cooling jacket 3 includes a first through-hole 3.2, which communicates with the left channel 5.1, and a second through-hole 3.3, which communicates with the right channel 5.2. These first and second through-holes 3.2 and 3.3 facilitate the flow of coolant within the cooling channels, ensuring effective heat dissipation.

[0030] In order to ensure the reliability of the use and installation of the air blowing head, the lower part of the air blowing pipe 1 passes through the cooling jacket 3, and an assembly seat 6 is fixed to the lower part of the air blowing pipe 1. The assembly seat 6 is provided with a blowing channel 6.1 connected to the air blowing pipe 1. The assembly seat 6 can effectively improve the stability of the air supply in the air blowing pipe 1 and the stability of the air blowing head after assembly.

[0031] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A split air blowing head that is easy to maintain, comprising an air blowing pipe and a blow needle head, wherein the air blowing pipe is embedded in the blow needle head, and the blow needle head is provided with an air blowing port corresponding to the air blowing pipe, characterized in that: A cooling jacket is provided on the outside of the air blowing pipe, a cooling channel is formed between the cooling jacket and the air blowing pipe, both ends of the cooling jacket are sealed and fixed to the air blowing pipe, and the blowing needle head is detachably fixed to the cooling jacket.

2. The split air blowing head easy to maintain according to claim 1, characterized in that: The upper end of the cooling sleeve is provided with a pressing platform, the outer side of the cooling sleeve is provided with a wear-resistant pad, and the blowing needle head cooperates with the pressing platform to press the wear-resistant pad.

3. The split air blowing head easy to maintain according to claim 2, characterized in that: The abutting platform protrudes outwards from the blowing needle head.

4. The split air blowing head easy to maintain according to claim 1, characterized in that: The two ends of the cooling jacket are sealed and fixed to the air blowing pipe by welding.

5. The split air blowing head easy to maintain according to claim 4, characterized in that: A solder groove is formed between the upper and lower ends of the cooling jacket and the air blowing pipe.

6. The split air blowing head easy to maintain according to claim 1, characterized in that: A sealing groove is provided on the inner side of the blow needle head, a sealing ring is embedded in the sealing groove, and the upper part of the cooling jacket is in sealing cooperation with the sealing ring.

7. The split air blowing head easy to maintain according to claim 1, characterized in that: The blowing needle head is threadedly connected with the cooling sleeve.

8. The split air blowing head easy to maintain according to claim 1, characterized in that: The cooling channel includes a left channel, a right channel and a connecting channel. The left channel and the right channel are located on both sides of the blowing pipe. The left channel and the right channel are connected through the connecting channel located on the upper part of the cooling channel.

9. The split air blowing head easy to maintain according to claim 8, characterized in that: The cooling jacket is provided with a first through hole communicating with the left channel, and a second through hole communicating with the right channel.

10. The split air blowing head easy to maintain according to claim 1, characterized in that: The lower part of the air blowing pipe passes through the cooling jacket, the lower part of the air blowing pipe is fixed with an assembly seat, and the assembly seat is provided with an air blowing channel communicated with the air blowing pipe.

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