Heat insulation type material pipe

Abstract

The utility model discloses a heat insulation type material pipe which comprises a pipe body and an oil sleeve. The pipe body is provided with a feeding channel, and the left end and the right end of the feeding channel penetrate through the pipe body respectively and form a discharging port and a feeding port correspondingly. A plurality of guide homogenizing grooves are formed in the inner wall face of the feeding channel, a heat preservation oil groove surrounding the pipe body is formed between the oil sleeve and the pipe body, an oil inlet hole is formed in the left end of the oil sleeve, and an oil outlet hole is formed in the right end of the oil sleeve; the outer wall face of the pipe body is wrapped with a heat insulation sheath, the heat insulation sheath is provided with an inner pipe and an outer pipe arranged outside the inner pipe in a sleeving mode, a heat insulation cavity is defined between the interior of the outer pipe and the exterior of the inner pipe, and a heat insulation protection piece is arranged in the heat insulation cavity; a flame-retardant layer is arranged on the side, close to the pipe body, of the inner pipe. A heat insulation layer is further arranged outside the outer pipe; therefore, the heating material pipe has better double heat insulation and heat preservation performance, heat loss on the heating material pipe of the rubber injection machine can be avoided, and meanwhile, the heating material pipe can be effectively prevented from scalding operators.

Description

Technical Field

[0001] The utility model relates to the technology of the material pipe field, in particular to a heat-insulating material pipe. Background Technique

[0002] At present, plastic products are usually injection-molded by an injection molding machine. Its working process is mainly: heating thermoplastic materials such as plastics to melt them, and then applying high pressure to the molten plastic materials to inject them at a temperature between 180°C and 350°C to fill the mold cavity, and finally shaping to form products.

[0003] The existing injection molding machine melts the plastic in the heating material pipe through a heater. Since the heating material pipe is exposed, the heat on the heating material pipe is dissipated into the working environment in the form of heat radiation, resulting in an increase in the working environment temperature, heat loss, affecting the heating efficiency of the injection molding machine, and at the same time, there is a risk of scalding the operator by the heating material pipe;

[0004] Secondly, when the injection molding machine injects too much raw material at one time and cannot inject the raw material into a molded product within the specified time, it is easy to leave the excess raw material on the material pipe, and the raw material in the material pipe stays for a long time, resulting in the raw material cooling and solidifying to form waste, thus affecting the molding quality of the product, and may also cause blockage of the material pipe, resulting in frequent maintenance of the injection molding machine due to failures, reducing the production efficiency and quality of the product.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Content of the Utility Model

[0006] In view of this, in view of the deficiencies of the existing technology, the main purpose of the present utility model is to provide a heat-insulating material pipe, which through the design of the heat-insulating protection part and the heat-insulating layer, thus has better double heat-insulating and heat-preserving performance, enabling it to better avoid the heat dissipation of the heating material pipe of the injection rubber machine, and at the same time, can effectively avoid scalding the operating workers by the heating material pipe.

[0007] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0008] A heat-insulating material pipe includes a pipe body and an oil sleeve arranged on the pipe body; the pipe body has a feed channel, and the left and right ends of the feed channel penetrate the pipe body respectively and form corresponding discharge ports and feed ports; a plurality of guiding and equalizing grooves are arranged on the inner wall surface of the feed channel, the guiding and equalizing grooves extend along the axial direction of the pipe body, and a plurality of guiding and equalizing grooves are arranged at equal intervals in sequence along the circumferential direction of the pipe body;

[0009] A heat-insulating oil tank surrounding the pipe body is formed between the oil sleeve and the pipe body, and an oil inlet hole is arranged at the left end of the oil sleeve and an oil outlet hole is arranged at the right end;

[0010] The outer wall surface of the pipe body is wrapped with a heat insulation sheath. The heat insulation sheath is provided with an inner pipe and an outer pipe sleeved outside the inner pipe. A heat insulation cavity is formed between the inside of the outer pipe and the outside of the inner pipe, and a heat insulation protection member is arranged in the heat insulation cavity; a flame retardant layer is arranged on one side of the inner pipe close to the pipe body; a heat insulation layer is further arranged on the outside of the outer pipe.

[0011] As a preferred solution, the heat insulation protection member is a fiberglass cloth.

[0012] As a preferred solution, the heat insulation layer is heat insulating cotton.

[0013] As a preferred solution, the diameter of the discharge port is larger than that of the feed channel. An annular guide port is formed in the pipe body at the right end of the discharge port. The diameter of the annular guide port is larger than that of the discharge port. The left and right ends of the annular guide port are respectively communicated with the discharge port and the feed channel. In this way, it is more beneficial for discharging materials.

[0014] As a preferred solution, the heat preservation oil tank includes a plurality of annular grooves arranged at intervals along the extending direction of the pipe body. Adjacent annular grooves are communicated. The oil inlet hole is arranged at the upper end of the leftmost annular groove, and the oil outlet hole is arranged at the lower end of the rightmost annular groove.

[0015] As a preferred solution, a flange mounting groove is concavely arranged on the outer peripheral side wall at the right end of the pipe body, and a circular connecting flange is arranged at the flange mounting groove; a circular ring protrudes on the circular connecting flange. The diameter of the inner wall surface of the circular ring is larger than that of the pipe body. A plurality of mounting through holes are arranged outside the circular ring on the circular connecting flange. The mounting through holes penetrate through the left and right ends of the circular connecting flange, and the plurality of mounting through holes are arranged in a ring at equal intervals around the outer periphery of the circular ring.

[0016] As a preferred solution, both pairs of side surfaces of the feed port along the axial direction of the pipe body are inclined surfaces, and the inclined surfaces extend obliquely to the right from the inside to the outside. In this way, when it is placed vertically for use, the feed port inclines downward for feeding, so that it has an inclined guiding performance, which is beneficial for guiding materials and will not cause the phenomenon of raw material accumulation and blockage.

[0017] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, it mainly has a heat insulation sheath wrapped outside the pipe body. A heat insulation cavity is formed between the inside of the outer pipe and the outside of the inner pipe, and a heat insulation protection member is arranged in the heat insulation cavity; a heat insulation layer is further arranged on the outside of the outer pipe. In this way, it has better double heat insulation and heat preservation performance, enabling it to better avoid heat dissipation on the heating material pipe of the injection rubber machine, and at the same time, it can effectively avoid scalding the operating workers by the heating material pipe;

[0018] Secondly, the design of the heat-insulating oil tank enables the hot oil in the heat-insulating oil tank to circulate in and out through the corresponding oil inlet holes and oil outlet holes, ensuring that the temperature of the raw materials in the material pipe is within a predetermined range. The structural design is ingenious and reasonable, the temperature control performance is accurate, the utilization rate of the raw materials is improved, the defective rate of the products is reduced, and the quality is stable. In particular, it prevents the raw materials from cooling and solidifying to form waste due to long-term stay when being injected into the material pipe, resulting in blockage of the material pipe and causing failures of the injection molding machine;

[0019] Finally, the setting of the guiding and homogenizing tank is conducive to the uniform mixing of the materials after entering the feeding channel. At the same time, it has good guiding performance and further improves the feeding smoothness.

[0020] To more clearly elaborate the structural features and functions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Description of the Drawings

[0021] Figure 1 is a cross-sectional view of an embodiment of the present invention;

[0022] Figure 2 is another cross-sectional view of an embodiment of the present invention;

[0023] Figure 3 is yet another cross-sectional view of an embodiment of the present invention;

[0024] Figure 4 is Figure 2 a partial enlarged view of part A in;

[0025] Figure 5 is Figure 3 a partial enlarged view of part B in.

[0026] Description of the Reference Numerals in the Drawings:

[0027] 10. Pipe body 101. Annular material guiding port

[0028] 102. Inclined surface 11. Feeding channel

[0029] 12. Discharge port 13. Feed port

[0030] 14. Guiding and homogenizing tank 15. Heat-insulating oil tank

[0031] 151. Annular groove

[0032] 16. Oil inlet hole 17. Oil outlet hole

[0033] 18. Heat-insulating sheath 181. Inner pipe

[0034] 182. Outer pipe

[0035] 183. Heat-insulating cavity 184. Heat-insulating protection member

[0036] 185. Flame retardant layer 186. Heat insulation layer

[0037] 19. Circular connecting flange 20. Oil sleeve Detailed implementation manners

[0038] Please refer to Figures 1 to 5 as shown, which shows the specific structure of the embodiment of the present utility model

[0039] In the description of the present utility model, it should be noted that for the orientation terms, such as the terms "upper", "lower", "front", "rear", "left", "right", etc., indicating the orientation and position relationship are based on the orientation or position relationship shown in the drawings or during normal wearing and use. 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, and cannot be construed as limiting the specific protection scope of the present utility model

[0040] A heat-insulating material pipe includes a pipe body 10 and an oil sleeve 20

[0041] The oil sleeve 20 is arranged on the pipe body 10; the pipe body 10 has a feed channel 11, and the left and right ends of the feed channel 11 respectively penetrate through the pipe body 10 and form corresponding discharge ports 12 and feed ports 13; a plurality of guiding and equalizing grooves 14 are arranged on the inner wall surface of the feed channel 11, the guiding and equalizing grooves 14 extend along the axial direction of the pipe body 10, and a plurality of guiding and equalizing grooves 14 are arranged at equal intervals in sequence along the circumferential direction of the pipe body 10

[0042] A heat-insulating oil tank 15 surrounding the pipe body 10 is formed between the oil sleeve 20 and the pipe body 10. An oil inlet hole 16 is arranged at the left end of the oil sleeve 20, and an oil outlet hole 17 is arranged at the right end of the oil sleeve 20; preferably, the heat-insulating oil tank 15 includes a plurality of annular grooves 151 arranged at intervals along the extending direction of the pipe body 10, adjacent annular grooves 151 are communicated, the oil inlet hole 16 is arranged at the upper end of the leftmost annular groove 151, and the oil outlet hole 17 is arranged at the lower end of the rightmost annular groove 151. Through the design of the heat-insulating oil tank 15, the hot oil in the heat-insulating oil tank 15 circulates in and out through the corresponding oil inlet hole 16 and oil outlet hole 17, ensuring that the temperature of the raw material in the material pipe is within a predetermined range. The structural design is ingenious and reasonable, the temperature control performance is accurate, the utilization rate of the raw material is improved, the defective rate of the product is reduced, the quality is stable. In particular, it prevents the raw material from cooling and solidifying to form waste due to long-term stay when the raw material is injected into the material pipe, resulting in blockage of the material pipe and malfunction of the injection molding machine

[0043] An insulating sheath 18 is wrapped around the outer wall surface of the pipe body 10. The insulating sheath 18 is provided with an inner pipe 181 and an outer pipe 182 sleeved outside the inner pipe 181. An insulating cavity 183 is formed between the inside of the outer pipe 182 and the outside of the inner pipe 181, and an insulating protection member 184 is arranged in the insulating cavity 183; preferably, the insulating protection member 184 is a fiberglass cloth. A flame retardant layer 185 is arranged on one side of the inner pipe 181 close to the pipe body 10; in this embodiment, it can be a high temperature resistant and fireproof cloth such as a fiberglass cloth, a ceramic fiber cloth or a high silica refractory fiber cloth with or without silicone coating, which plays an outer lining role. An insulating layer 186 is also arranged on the outside of the outer pipe 182. Preferably, the insulating layer 186 is a heat insulating cotton.

[0044] Preferably, the diameter of the discharge port 12 is larger than that of the feed channel 11. An annular guide port 101 is formed in the pipe body 10 at the right end of the discharge port 12. The diameter of the annular guide port 101 is larger than that of the discharge port 12. The left and right ends of the annular guide port 101 are respectively communicated with the discharge port 12 and the feed channel 11. In this way, it is more conducive to discharging materials.

[0045] Preferably, a flange mounting groove is recessed in the outer peripheral side wall at the right end of the pipe body 10, and a circular connecting flange 19 is arranged at the flange mounting groove; a circular ring protrudes from the circular connecting flange 19. The diameter of the inner wall surface of the circular ring is larger than that of the pipe body 10. The circular connecting flange 19 is provided with a plurality of mounting through holes around the periphery of the circular ring. The mounting through holes penetrate through the left and right ends of the circular connecting flange 19, and the plurality of mounting through holes are arranged in a uniformly spaced manner around the outer periphery of the circular ring in sequence.

[0046] Preferably, both pairs of side surfaces of the feed port 13 along the axial direction of the pipe body 10 are inclined surfaces 102, and the inclined surfaces 102 extend obliquely to the right from the inside to the outside. In this way, when it is placed vertically for use, the feed port 13 on the side surface feeds downward obliquely, so that it has an inclined guiding performance, which is conducive to guiding materials and will not cause blockage due to material accumulation.

[0047] The design focus of the present utility model is that mainly an insulating sheath is wrapped outside the pipe body, an insulating cavity is formed between the inside of the outer pipe and the outside of the inner pipe, and an insulating protection member is arranged in the insulating cavity; an insulating layer is also arranged on the outside of the outer pipe. In this way, it has better double heat insulation and heat preservation performance, so that it can preferably avoid heat dissipation on the heating material pipe of the injection rubber machine, and at the same time, it can effectively avoid scalding the operating workers by the heating material pipe;

[0048] Secondly, the design of the heat-insulating oil tank enables the hot oil in the heat-insulating oil tank to circulate in and out through the corresponding oil inlet holes and oil outlet holes, ensuring that the temperature of the raw material in the material pipe is within a predetermined range. The structural design is ingenious and reasonable, the temperature control performance is accurate, the utilization rate of the raw material is improved, the defective rate of the product is reduced, and the quality is stable. In particular, it prevents the raw material from cooling and solidifying to form waste due to long-term residence when the raw material is injected into the material pipe, resulting in blockage of the material pipe and causing the injection molding machine to malfunction;

[0049] Finally, the setting of the guiding and homogenizing tank is conducive to the uniform mixing of the material after it enters the feeding channel. At the same time, it has good guiding performance and further improves the feeding smoothness.

[0050] The above are only the preferred embodiments of the present invention, and do not impose any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A heat-insulating material pipe, characterized in that: It includes a pipe body and an oil jacket arranged on the pipe body; the pipe body has a feed channel, and the left and right ends of the feed channel penetrate the pipe body respectively and form corresponding discharge ports and feed ports; a number of guiding and equalizing grooves are arranged on the inner wall surface of the feed channel, the guiding and equalizing grooves extend along the axial direction of the pipe body, and a number of guiding and equalizing grooves are arranged at equal intervals in sequence along the circumferential direction of the pipe body. A heat-insulating oil tank surrounding the pipe body is formed between the oil jacket and the pipe body, an oil inlet hole is arranged at the left end of the oil jacket, and an oil outlet hole is arranged at the right end of the oil jacket. The outer wall surface of the pipe body is wrapped with a heat-insulating sheath, the heat-insulating sheath is provided with an inner pipe and an outer pipe sleeved outside the inner pipe, a heat-insulating cavity is formed between the inside of the outer pipe and the outside of the inner pipe, and a heat-insulating protection member is arranged in the heat-insulating cavity; a flame-retardant layer is arranged on the side of the inner pipe close to the pipe body; a heat-insulating layer is further arranged outside the outer pipe.

2. The heat-insulating material pipe according to claim 1, characterized in that: The heat-insulating protection member is fiberglass cloth.

3. The heat-insulating material pipe according to claim 1, wherein: The heat-insulating layer is heat-insulating cotton.

4. A heat-insulating material tube according to claim 1, characterized in that: The diameter of the discharge port is larger than that of the feed channel, a circular guide port is formed in the pipe body at the right end of the discharge port, the diameter of the circular guide port is larger than that of the discharge port, and the left and right ends of the circular guide port are respectively communicated with the discharge port and the feed channel.

5. A heat-insulating material tube according to claim 1, characterized in that: The heat-insulating oil tank includes a number of annular grooves arranged at intervals along the extending direction of the pipe body, adjacent annular grooves are communicated, the oil inlet hole is arranged at the upper end of the leftmost annular groove, and the oil outlet hole is arranged at the lower end of the rightmost annular groove.

6. The heat-insulating material tube according to claim 1, characterized in that: A flange mounting groove is recessed on the outer peripheral side wall at the right end of the pipe body, and a circular connecting flange is arranged at the flange mounting groove; a circular ring protrudes on the circular connecting flange, the diameter of the inner wall surface of the circular ring is larger than that of the pipe body, a number of mounting through holes are arranged on the circular connecting flange outside the circular ring, the mounting through holes penetrate through the left and right ends of the circular connecting flange, and a number of mounting through holes are arranged at equal intervals in sequence along the circumference around the circular ring.

7. An insulating material tube according to claim 1, characterized in that: Both pairs of side surfaces of the feed port along the axial direction of the pipe body are inclined surfaces, and the inclined surfaces extend obliquely to the right from the inside to the outside.

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