Cooling hose for two-plate injection molding machine

Abstract

The utility model relates to the technical field of high polymer material composite pipes, in particular to a cooling hose for a two-plate injection molding machine, which comprises a pipe body, and a joint and two reinforcing units are arranged at each of two ends of the pipe body. The circumferential sides of the two connectors are each coated with a reinforcing unit. The connector is used for connecting the pipe body with an external structure. The pipe body comprises a high-temperature-resistant corrugated pipe, a woven layer and a heat preservation layer which are sequentially arranged from inside to outside in a wrapping mode. The interior of the corrugated pipe is used for guiding liquid, and the connectors are connected to the peripheral sides of the corresponding heat preservation layers in a buckled mode. The pipe body has multi-layer protection, so that the strength, rigidity and flexibility of the pipe body can be improved, the stability of conveyed liquid can be ensured, the length of the pipe body can be prolonged to increase the conveying length, and the compatibility of the pipe body is improved. The high-temperature-resistant corrugated pipe can change the characteristic that the pipeline cannot be bent, can balance pipeline displacement and size change caused by weather and the like or is used for eliminating vibration of high-frequency machinery, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of polymer material composite pipes, in particular to a cooling hose for a two-plate injection molding machine. Background Art

[0002] At present, the cooling hoses used for two-plate injection molding machines are mostly PVC steel wire tubes or PVC cotton thread tubes, which are short in length. There are problems such as large temperature loss during infusion, easy rupture of the tube and short service life, and accumulation of dirt in the tube. In addition, the joints are mostly fixed with hose clamps, which are easy to fall off and cause high-temperature liquid to injure people, causing safety and quality accidents. With the development of large-scale and integrated products, its production equipment and molds, including mold temperature controllers, have developed in large scale, and the distance between mold temperature controllers and equipment is getting farther and farther. Short infusion tubes can no longer meet production needs. Utility Model Content

[0003] In order to solve the technical defects mentioned in the above background technology, the purpose of the utility model is to provide a cooling hose for a two-platen injection molding machine.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A cooling hose for a two-plate injection molding machine comprises a tube body, a joint at each end of the tube body and two reinforcement units, the circumferential sides of the two joints are each coated with one of the reinforcement units, and the joint is used to connect the tube body to an external structure; the tube body comprises a high-temperature resistant corrugated tube, a braided layer and a thermal insulation layer which are sequentially coated from the inside to the outside; the interior of the corrugated tube is used to guide liquid, and the joint is snap-fitted and connected to the outer circumferential side of the corresponding thermal insulation layer.

[0006] By adopting the above technical solution, the pipe body has multiple layers of protection, which can improve the strength, rigidity and flexibility of the pipe body, and is also conducive to ensuring the stability of the transported liquid. The length of the pipe body can be extended to increase the transport length and improve the compatibility of the pipe body. The high temperature resistant bellows can change the property that the pipe cannot be bent. At the same time, it can balance the displacement and size changes of the pipe caused by climate and other reasons or be used to eliminate the vibration of high-frequency machinery and extend the service life. The reinforcement unit can reinforce the connection between the joint and the pipe body to make the connection position more stable.

[0007] Furthermore, the bellows is a polytetrafluoroethylene bellows. The polytetrafluoroethylene material has excellent dielectric properties and chemical corrosion resistance, high and low temperature resistance (-70℃~+260℃), waterproof, non-stick, good self-lubricating properties, etc., ensuring that the fluid in the tube moves smoothly at 150℃.

[0008] Furthermore, the braided layer is arranged as a steel wire braided layer. The steel wire braided layer can greatly enhance the protection of the polytetrafluoroethylene corrugated pipe, increase the overall strength and stiffness, bending and folding resistance, withstand the high pressure generated during liquid flow, and the pipe length can reach dozens of meters.

[0009] Furthermore, the heat insulation layer is arranged as a cotton thread braided heat insulation layer structure. In addition to heat insulation, the outer surface temperature of the pipe body is lower than 60 °C, which can prevent scalding and also increase the strength and flexibility of the composite pipe.

[0010] Furthermore, the joint includes a rod core and a sleeve. One end of the rod core is inserted into the inside of the corrugated pipe. The sleeve is arranged in a cylindrical structure. The sleeve covers the outer peripheral side of the end of the pipe body, and the installation and disassembly are convenient. The joint, the elastic member, and the hose clamp form a whole composite pipe with the polytetrafluoroethylene corrugated pipe and the steel wire / cotton thread braided heat insulation layer, making its structure very efficient and reliable.

[0011] Furthermore, the reinforcement unit includes an elastic member and a hose clamp. The elastic member is sleeved on the outer peripheral side of one end of the corresponding joint connected to the pipe body; the hose clamp is sleeved on the outer peripheral side of one end of the elastic member to fixedly connect the elastic member, the corresponding joint, and the pipe body. Among them, the elastic member wraps the joint, reduces the deformation degree of the joint and the soft pipe body during use, improves the connection stability between the joint and the pipe body, as well as the rigidity and flexibility at the connection between the pipe body and the joint, prevents the pipe body from breaking or disconnecting from the joint, thereby improving the safety performance and extending the service life.

[0012] Furthermore, the elastic member is arranged as a spring structure. While the spring has sufficient mechanical properties and rigidity, it also has excellent flexibility, preventing breakage and damage and extending the service life.

[0013] Furthermore, the length of the elastic member is greater than the length of one end of the joint connected to the pipe body, increasing the protection range, preventing the joint and the pipe body from breaking or detaching, extending the service life and improving the safety performance.

[0014] In summary, the beneficial effects of the present utility model are as follows:

[0015] By providing multiple layers of protection on the pipe body of the present utility model, the strength, stiffness, and flexibility of the pipe body can be improved, which is also beneficial to ensuring the stability of the transported liquid, can extend the length of the pipe body to increase the transportation length, and improve the compatibility of the pipe body. The high-temperature resistant corrugated pipe can change the characteristic that the pipeline cannot be bent. At the same time, it can balance the pipeline displacement, size change caused by reasons such as climate, or be used to eliminate the vibration of high-frequency machinery, and extend the service life. The reinforcement unit can reinforce the connection between the joint and the pipe body, making the connection position more stable. Brief Description of the Drawings

[0016] Figure 1 is a schematic structural view of an embodiment of the cooling hose for a two-platen injection molding machine of the present utility model.

[0017] Figure 2 is a schematic cross-sectional structural view of an embodiment of the cooling hose for a two-platen injection molding machine of the present utility model.

[0018] Explanation of the reference numerals in the figure:

[0019] 1. Cooling hose for two-platen injection molding machine; 2. Pipe body; 21. Bellows; 22. Braided layer; 23. Thermal insulation layer; 3. Joint; 31. Rod core; 32. Sleeve; 4. Reinforcement unit; 41. Elastic member; 42. Hose clamp. Detailed Description of the Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art shall fall within the protection scope of the present utility model.

[0021] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present utility model.

[0022] In the description of the present utility model, if there are descriptions with words such as "several", its meaning is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If there are descriptions of first, second, third, etc., it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0023] The following will be further described in detail with reference to the attached Figure 1-2 , for the embodiments of the present utility model.

[0024] A cooling hose 1 for a two-platen injection molding machine, such as Figure 1 , Figure 2As shown in the figure, it includes a pipe body 2, with a joint 3 provided at each end of the pipe body 2 and two reinforcement units 4. A reinforcement unit 4 is wrapped around the circumferential side of each of the two joints 3. The joint 3 is used to connect the pipe body 2 to an external structure. The pipe body 2 includes a high-temperature-resistant bellows 21, a braided layer 22, and a heat-insulating layer 23, which are sequentially wrapped from the inside to the outside. The inside of the bellows 21 is used for guiding the flow of liquid, and the joint 3 is snap-connected to the outer peripheral side of the corresponding heat-insulating layer 23.

[0025] This pipe body 2 has multiple layers of protection, which can improve the strength, stiffness, and flexibility of the pipe body 2, and is also beneficial to ensuring the stability of the transported liquid. The length of the pipe body 2 can be extended to increase the transportation length, and the compatibility of the pipe body 2 can be improved. The high-temperature-resistant bellows 21 can change the characteristic that the pipeline cannot be bent. At the same time, it can balance the pipeline displacement, size change caused by reasons such as climate, or be used to eliminate the vibration of high-frequency machinery, and extend the service life. The heat-insulating layer 23 can improve the quality of the transported liquid. The reinforcement unit 4 can reinforce the connection between the joint 3 and the pipe body 2, making the connection position more stable.

[0026] In this embodiment, specifically, the bellows 21 is set as a polytetrafluoroethylene bellows 21. The polytetrafluoroethylene material has excellent dielectric properties, chemical corrosion resistance, high and low temperature resistance (-70°C to +260°C), waterproofness, non-stickiness, good self-lubricating properties, etc., ensuring smooth movement of the fluid in the pipe at 150°C.

[0027] More preferably, the braided layer 22 is set as a steel wire braided layer 22. The steel wire braided layer 22 can greatly enhance the protection of the polytetrafluoroethylene bellows 21, increase the overall strength and stiffness, bending and folding resistance, withstand the high pressure generated during liquid flow, and the pipe length can reach dozens of meters.

[0028] More preferably, the heat-insulating layer 23 is set as a cotton thread braided heat-insulating layer 23 structure. In addition to heat insulation, the outer surface temperature of the pipe body 2 is lower than 60°C, which can prevent scalding and also increase the strength and flexibility of the composite pipe.

[0029] In this embodiment, the joint 3 includes a rod core 31 with a nut and a sleeve 32. One end of the rod core 31 is inserted into the interior of the corrugated pipe 21, and the other end of the rod core 31 is used for quick connection with an external structure. The sleeve 32 can be set as a cylindrical structure. A spiral groove is provided inside the sleeve 32. The sleeve 32 is fixedly connected to the pipe body 2, which is convenient for installation and disassembly, increases the contact area and frictional resistance, and improves the connection stability. The joint 3, the elastic member 41, and the hose clamp 42 form an integral composite pipe with the polytetrafluoroethylene corrugated pipe 21 and the wire / cotton thread braided heat insulation layer 23, making its structure very efficient and reliable. Of course, the joint 3 can also be other adapter structures, which are determined according to actual usage situations and are not limited herein. The various joints 3 at both ends of the pipe body 2 facilitate loading and unloading in the narrow spaces of machines and molds, and are reliable and safe.

[0030] The cooling hose 1 originally used for two-platen injection molding machines utilizes the characteristics of PTFE. The corrugated pipe 21 can withstand a constant temperature of 150 °C inside without generating dirt. It is woven with multiple layers of materials to improve the strength, stiffness, and flexibility of the pipe body 2, extend the applicable length, and improve the compatibility. The pipe body 2 is equipped with various reliable joints 3, making it safe, efficient, and durable, enhancing the product quality and working efficiency, reducing the use cost, and being energy-saving and environment-friendly.

[0031] In this embodiment, the reinforcement unit 4 includes an elastic member 41 and a hose clamp 42. The elastic member 41 is sleeved on the outer peripheral side of the end of the corresponding joint 3 connected to the pipe body 2. The hose clamp 42 is sleeved on the outer peripheral side of one end of the elastic member 41 to fixedly connect the elastic member 41, the corresponding joint 3, and the pipe body 2.

[0032] A reinforcement unit 4 is provided on the outer peripheral side of each joint 3. Among them, the elastic member 41 wraps the joint 3, reducing the degree of deformation of the joint 3 and the soft pipe body 2 during use, improving the connection stability between the joint 3 and the pipe body 2, as well as the rigidity and flexibility at the connection of the pipe body 2 and the joint 3, preventing the pipe body 2 from breaking or detaching from the joint 3, thereby enhancing the safety performance and extending the service life.

[0033] Preferably, the elastic member 41 is set as a spring structure. While the spring has sufficient mechanical properties and rigidity, it also has excellent flexibility, preventing breakage and damage and extending the service life. Of course, the elastic member 41 can also be set as an elastic sleeve or other structures.

[0034] Specifically, the length of the elastic member 41 is greater than the length of the end of the joint 3 connected to the pipe body 2, so that the other end of the elastic member 41 can wrap the part of the pipe body 2 connected to the joint 3, increasing the protection range, preventing the joint 3 and the pipe body 2 from breaking or detaching, extending the service life, and improving the safety performance.

[0035] The processing principle of the present application will be elaborated in detail below.

[0036] First step: Use a push tube machine to manufacture a polytetrafluoroethylene straight tube with dispersed resin, and then use a corrugated hose 21 machine to manufacture a corrugated hose;

[0037] Second step: Use a wire stranding machine to combine several single wires into one strand, and then use a wire braiding machine to braid a stranded wire braiding layer 22 outside the corrugated hose 21;

[0038] Third step: Use a cotton thread stranding machine to combine several single cotton threads into one strand, and then use a cotton thread braiding machine to braid a stranded cotton thread braided insulation layer 23 outside the tube of the wire braiding layer 22 to form a multi-layer composite tube;

[0039] Fourth step: Put elastic parts 41 and hose clamps 42 on both ends of the multi-layer composite tube;

[0040] Fifth step: Insert a core rod 31 with a nut and a sleeve 32 into both ends of the tube body 2 respectively;

[0041] Sixth step: Use a crimping machine to crimp the joint 3 and the tube body 2 together;

[0042] Seventh step: Tighten the hose clamp 42 to fasten the elastic parts 41 at both ends on the sleeve 32 of the tube body 2 and the joint 3.

[0043] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A cooling hose (1) for a two-plate injection molding machine, characterized in that: The invention comprises a tube body (2), a joint (3) and two reinforcement units (4) are arranged at both ends of the tube body (2), the circumferential sides of the two joints (3) are each coated with one of the reinforcement units (4), and the joints (3) are used to connect the tube body (2) to an external structure; the tube body (2) comprises a high-temperature resistant bellows (21), a braided layer (22) and a thermal insulation layer (23) which are sequentially coated from the inside to the outside; the interior of the bellows (21) is used to guide liquid, and the joints (3) are snap-fitted and connected to the outer circumferential side of the corresponding thermal insulation layer (23).

2. The cooling hose (1) for a two-platen injection molding machine according to claim 1, characterized in that: The bellows (21) is configured as a polytetrafluoroethylene bellows.

3. The cooling hose (1) for a two-platen injection molding machine according to claim 1, characterized in that: The braided layer (22) is configured as a steel wire braided layer.

4. The cooling hose (1) for a two-platen injection molding machine according to claim 1, characterized in that: The thermal insulation layer (23) is configured as a cotton thread woven thermal insulation layer structure.

5. The cooling hose (1) for a two-platen injection molding machine according to claim 1, characterized in that: The joint (3) comprises a rod core (31) and a sleeve (32), one end of the rod core (31) is inserted into the interior of the corrugated tube (21), the sleeve (32) is configured as a cylindrical structure, and the sleeve (32) is covered on the outer peripheral side of the end of the tube body (2).

6. The cooling hose (1) for a two-platen injection molding machine according to claim 1, characterized in that: The reinforcement unit (4) comprises an elastic member (41) and a throat clamp (42); the elastic member (41) is sleeved on the outer peripheral side of one end portion of the corresponding joint (3) connected to the pipe body (2); the throat clamp (42) is sleeved on the outer peripheral side of one end of the elastic member (41) so that the elastic member (41), the corresponding joint (3), and the pipe body (2) are fixedly connected.

7. The cooling hose (1) for a two-platen injection molding machine according to claim 6, characterized in that: The elastic member (41) is configured as a spring structure.

8. The cooling hose (1) for a two-platen injection molding machine according to claim 6, characterized in that: The length of the elastic member (41) is greater than the length of one end of the joint (3) connected to the tube body (2).

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