Multi-runner injection mold with circulating heat conduction function

Abstract

The utility model provides a multi-runner injection mold with a circulating heat conduction function, which relates to the technical field of injection molds and comprises a lower mold plate, mounting plates are arranged on two sides of the lower mold plate, and an upper mold plate is mounted at the top of the lower mold plate in a closed manner; mounting plates are mounted on the two sides of the upper die plate, the mounting plates on the two sides of the upper die plate are mounted on the mounting plates on the two sides of the lower die plate through fixing bolts, and first positioning supporting plates are mounted at the top of the upper die plate and the bottom of the lower die plate. Positioning support plates II are mounted on two sides of the lower template; a cold air pump and a hot air pump are installed at the bottom of the lower die plate. And air outlet pipes are installed at the output end of the cold air pump and the output end of the hot air pump, and control valves are installed on the two air outlet pipes. The lower circulating pipe and the upper circulating pipe are used for guiding hot air flow, the heat conduction effect on the injection mold is improved, and the problem that the heating conduction effect is poor due to the fact that flowing of injection molding materials is guaranteed by heating the outer side of the mold is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a multi-flow channel injection mold with a circulating heat conduction function. Background Art

[0002] Some embedded parts need to be embedded under the high-speed railway tracks, and the embedded parts need to be processed using injection molds. The injection molds heat and inject plastic material into the mold cavity, and then cool and solidify to form products, so that the embedded parts under the high-speed railway tracks can be mass-produced and the efficiency is greatly improved. In the existing technology, when the injection molds for embedded parts under the high-speed railway tracks are used, the flow of the injection material is ensured by heating the outside of the mold. However, the effect of heat conduction through the outside is poor, and the conducted temperature is relatively constant, which has poor adaptability to workpieces made of special materials. Summary of the Invention

[0003] The disclosed embodiment relates to a multi-channel injection mold with a circulating heat conduction function, in which a lower circulation pipe and an upper circulation pipe are installed inside the lower template and the upper template, and the hot air flow is guided by the lower circulation pipe and the upper circulation pipe to accelerate the heating treatment of the mold. The lower circulation pipe and the upper circulation pipe are respectively in the side walls of the lower template and the upper template to reduce heat loss, and the hot air flow flowing in the lower circulation pipe and the upper circulation pipe is adjusted by adjusting the seal, thereby adjusting the heat conduction. Injection molded workpieces of different materials can be used, and the mold has strong adaptability.

[0004] According to a first aspect of the present disclosure, a multi-runner injection mold with a circulating heat conduction function is provided, which specifically includes: a lower template, mounting plates are provided on both sides of the lower template, and the top of the lower template is closed and installed with an upper template; mounting plates are installed on both sides of the upper template, and the mounting plates on both sides of the upper template are installed on the mounting plates on both sides of the lower template through fixing bolts, and a positioning support plate 1 is installed on the top of the upper template and the bottom of the lower template; positioning support plate 2 is installed on both sides of the lower template; an air-cooling pump and a hot air pump are respectively installed on the bottom of the lower template; air outlet pipes are installed on the output ends of the air-cooling pump and the hot air pump, and control valves are installed on both air outlet pipes.

[0005] Furthermore, a concave mold is provided at the top of the lower template, and a lower circulation pipe is installed in the side wall of the lower template; the top end of the lower circulation pipe is at the top of the lower template, and an air intake pipe is installed at one end of the bottom of the lower circulation pipe, wherein the outer end of the air intake pipe passes through one end of the lower template.

[0006] Furthermore, a convex mold is provided at the bottom of the upper template, and an upper circulation pipe is installed in the side wall of the upper template; the bottom end of the upper circulation pipe is connected to the top end of the lower circulation pipe, and an air outlet pipe is installed at the side end of the upper circulation pipe; the outer end of the air outlet pipe passes through one end of the upper template; and installation slots are provided on both the lower circulation pipe and the upper circulation pipe.

[0007] Furthermore, a driving rod is rotatably mounted on both the positioning support plate 1 and the positioning support plate 2; a sealing member is mounted on the outer end of the driving rod; and the inner end of the sealing member respectively passes through the side walls of the upper template and the lower template and is inserted into the interior of the mounting slot.

[0008] Furthermore, a diverter pipe is installed at the outer end of the outlet pipe; the side ends of the two diverter pipes are connected to a guide pipe 1; and the side end of the guide pipe 1 is connected to the outer end of the air inlet pipe.

[0009] Furthermore, a return pipe is installed on the input end of the cold air pump and the hot air pump; the side end of the return pipe is connected to the second guide pipe; the top of the second guide pipe is installed with a quick connector, which is connected to the outer end of the air outlet pipe.

[0010] Furthermore, the air outlet pipe on the output end of the cold air pump is connected to a guide air pipe; jet pipes are installed at the bottom of both sides of the lower template; the jet pipe is provided with an air outlet groove, the air outlet groove faces the two sides of the lower template, and the side of the jet pipe is connected to the side end of the guide air pipe.

[0011] The utility model provides a multi-flow channel injection mold with a circulating heat conduction function, which has the following beneficial effects:

[0012] When in use, the utility model improves the heat conduction effect of the injection mold by guiding the hot air flow through the lower circulation pipe and the upper circulation pipe. When the high-speed rail embedded part injection mold is in use, the lower circulation pipe and the upper circulation pipe are respectively installed inside the lower template and the upper template. The hot air flow is guided by the lower circulation pipe and the upper circulation pipe to accelerate the heating treatment of the mold. The lower circulation pipe and the upper circulation pipe are respectively in the side walls of the lower template and the upper template to reduce heat loss. The hot air flow flowing in the lower circulation pipe and the upper circulation pipe is adjusted by adjusting the sealing member, thereby adjusting the heat conduction. Injection molded workpieces of different materials can be used, and the utility model has strong adaptability.

[0013] In addition, the jet pipe can quickly cool down the outside of the mold to reduce the problem of scalding workers during demoulding. When the injection mold of embedded parts under the high-speed rail is in use, the control valve on the outlet pipe at the output end of the hot air pump is closed, and the control valve on the outlet pipe at the output end of the cold air pump is opened. The cold air flows through the guide air pipe to the jet pipe and is ejected, cooling both sides of the lower template and the upper template, which facilitates the demoulding operation of the injection molded parts and avoids the problem of scalding caused by the hot mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0015] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0016] In the attached figure:

[0017] Figure 1 A schematic diagram showing the overall structure of the present application;

[0018] Figure 2 Shows a schematic cross-sectional structure diagram of the lower template of the present application;

[0019] Figure 3 A schematic diagram of a three-dimensional structure of a positioning support plate of the present application is shown;

[0020] Figure 4 Shows the application by Figure 3 The enlarged structural diagram of part A is shown;

[0021] Figure 5 A schematic diagram of the three-dimensional structure of the air outlet pipe of the present application is shown;

[0022] Figure 6 A schematic diagram of the three-dimensional structure of the jet pipe of the present application is shown;

[0023] Reference Signs List

[0024] 1. Lower template; 101. Upper template; 102. Lower circulation pipe; 103. Air inlet pipe; 104. Upper circulation pipe; 105. Air outlet pipe; 106. Mounting slot;

[0025] 2. Positioning support plate 1; 201. Positioning support plate 2; 202. Drive rod; 203. Sealing element;

[0026] 3. Cold air pump; 301. Hot air pump; 302. Outlet pipe; 303. Diversion pipe; 304. Diversion pipe 1; 305. Diversion pipe 2; 306. Return pipe; 307. Diversion pipe; 308. Jet pipe. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Please refer to Figures 1 to 6 :

[0029] Example 1:

[0030] The utility model proposes a multi-runner injection mold with a circulating heat conduction function, comprising: a lower template 1, mounting plates are provided on both sides of the lower template 1, and an upper template 101 is installed on the top of the lower template 1 in a closed manner; mounting plates are installed on both sides of the upper template 101, and the mounting plates on both sides of the upper template 101 are installed on the mounting plates on both sides of the lower template 1 through fixing bolts; a concave mold is provided on the top of the lower template 1, and a lower circulation pipe 102 is installed in the side wall of the lower template 1; the top end of the lower circulation pipe 102 is at the top of the lower template 1, and the lower circulation pipe An air intake pipe 103 is installed at one end of the bottom of 102, wherein the outer end of the air intake pipe 103 passes through one end of the lower template 1; a punch is provided at the bottom of the upper template 101, and an upper circulation pipe 104 is installed in the side wall of the upper template 101; the bottom end of the upper circulation pipe 104 is connected to the top of the lower circulation pipe 102, and an air outlet pipe 105 is installed at the side end of the upper circulation pipe 104; the outer end of the air outlet pipe 105 passes through one end of the upper template 101; both the lower circulation pipe 102 and the upper circulation pipe 104 are provided with mounting slots 106.

[0031] In the embodiment of the present disclosure, when the injection mold for the embedded parts under the high-speed rail is in use, the upper template 101 is closed on the top of the lower template 1 and is fixedly installed by the mounting plates on both sides of the lower template 1 and the upper template 101. When the upper template 101 is closed, the bottom end of the upper circulation tube 104 is driven to connect with the top end of the lower circulation tube 102, and the heated airflow enters the interior of the lower circulation tube 102 through the air inlet pipe 103, and the hot airflow flows upward into the interior of the upper circulation tube 104, so that the hot airflow flows in the multiple channels of the lower circulation tube 102 and the upper circulation tube 104, evenly heating the lower template 1 and the upper template 101, preventing the injection molded material from solidifying when cold, and the excess airflow is discharged through the air outlet pipe 105, thereby improving the injection molding quality of the embedded parts under the high-speed rail.

[0032] Example 2. On the basis of Example 1, a positioning support plate 2 is installed on the top of the upper template 101 and the bottom of the lower template 1; a positioning support plate 201 is installed on both sides of the lower template 1; a driving rod 202 is rotatably installed on the positioning support plate 2 and the positioning support plate 201; a sealing member 203 is installed on the outer end of the driving rod 202; the inner end of the sealing member 203 passes through the side walls of the upper template 101 and the lower template 1 respectively and is inserted into the inside of the installation slot 106. When the high-speed rail embedded part injection mold is in use, the driving rod 202 is rotated on the positioning support plate 2 and the positioning support plate 201 according to the requirements of the injection molded parts. The driving rod 202 drives the sealing member 203 to be inserted into the inside of the installation slot 106, so that the inner end of the sealing member 203 adjusts the airflow flow in the upper circulation pipe 104 or the lower circulation pipe 102, thereby adjusting the conduction temperature to adapt to different embedded parts processing.

[0033] Example 3, on the basis of Example 1, a cold air pump 3 and a hot air pump 301 are respectively installed at the bottom of the lower template 1; an outlet pipe 302 is installed on the output end of the cold air pump 3 and the hot air pump 301, wherein the two outlet pipes 302 are both installed with a control valve; a diversion pipe 303 is installed at the outer end of the outlet pipe 302; the side ends of the two diversion pipes 303 are connected to a guide pipe 1 304; the side end of the guide pipe 1 304 is connected to the outer end of the air inlet pipe 103; a return pipe 306 is installed on the input end of the cold air pump 3 and the hot air pump 301; the side end of the return pipe 306 is connected to the Connected to the guide pipe 305; the top of the guide pipe 305 is installed with a quick connector, which is connected to the outer end of the air outlet pipe 105; the outlet pipe 302 on the output end of the cold air pump 3 is connected to the guide air pipe 307; the bottom of both sides of the lower template 1 is installed with a jet pipe 308; the jet pipe 308 is provided with an air outlet groove, the air outlet groove faces the two sides of the lower template 1, and the side of the jet pipe 308 is connected to the side end of the guide air pipe 307. When the high-speed rail embedded part injection mold is in use, the control valve on the outlet pipe 302 at the output end of the cold air pump 3 is closed, and the hot air pump 301 outputs When the control valve on the outlet pipe 302 at the end is opened, the hot air flow generated by the hot air pump 301 enters the diversion pipe 303 through the outlet pipe 302, and then enters the air inlet pipe 103 through the guide pipe 1 304 to heat the injection mold. After the air flow circulates, it flows out through the outlet pipe 105 and then enters the guide pipe 2 305 through the return pipe 306 into the hot air pump 301 for further heating and recycling, thereby improving the quality of the embedded parts under the high-speed railway track. When demoulding, the control valve on the outlet pipe 302 at the output end of the cold air pump 3 is opened, and the outlet pipe 301 at the output end of the hot air pump 301 is opened. When the control valve on 302 is closed, the cold air flow generated by the cold air pump 3 enters the diverter pipe 303 through the air outlet pipe 302, and then enters the air inlet pipe 103 through the guide pipe 1 304 to cool the injection molded parts. After the air flow circulates, it flows out through the air outlet pipe 105 and then enters the guide pipe 2 305 through the return pipe 306 and enters the cold air pump 3 for recycling. Part of the cold air flow enters the jet pipe 308 through the guide pipe 307. The air flow ejected from the jet pipe 308 cools down both sides of the lower template 1 and the upper template 101, thereby improving the efficiency of demoulding.

[0034] The working principle of this embodiment is as follows: when in use, the upper template 101 is closed on the top of the lower template 1, the bottom end of the upper circulation pipe 104 is connected to the top end of the lower circulation pipe 102, and the driving rod 202 is rotated on the positioning support plate 1 2 and the positioning support plate 2 201 to drive the seal 203 to be inserted into the installation slot 106. The inner end of the seal 203 adjusts the air flow rate flowing in the upper circulation pipe 104 or the lower circulation pipe 102, and adjusts the temperature of the conduction. The control valve on the outlet pipe 302 at the output end of the cold air pump 3 is closed, and the control valve on the outlet pipe 302 at the output end of the hot air pump 301 is opened. The hot air flow generated by the pump 301 enters the diversion pipe 303 through the outlet pipe 302, then enters the air inlet pipe 103 through the guide pipe 1 304, and then enters the lower circulation pipe 102. The hot air flow flows upward and enters the upper circulation pipe 104. The hot air flow flows in the multiple channels of the lower circulation pipe 102 and the upper circulation pipe 104, uniformly heating the lower template 1 and the upper template 101. The excess air flow is discharged through the outlet pipe 105, flows out through the outlet pipe 105, then enters the guide pipe 2 305, passes through the return pipe 306, and enters the hot air pump 301 for further heating and recycling.

[0035] During demoulding, the control valve on the air outlet pipe 302 at the output end of the cold air pump 3 is opened, and the control valve on the air outlet pipe 302 at the output end of the hot air pump 301 is closed. The cold air flow generated by the cold air pump 3 enters the diversion pipe 303 through the air outlet pipe 302 and then enters the air inlet pipe 103 through the guide pipe 1 304 to cool the injection molded parts. Part of the cold air flow enters the jet pipe 308 through the guide pipe 307 and the jet air flows to cool both sides of the lower template 1 and the upper template 101, thereby improving the efficiency of demoulding.

[0036] In this article, there are several points to note:

[0037] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0038] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0039] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A multi-runner injection mold with a circulating heat conduction function, comprising: A lower template (1), wherein mounting plates are provided on both sides of the lower template (1), and an upper template (101) is installed on the top of the lower template (1); it is characterized in that mounting plates are installed on both sides of the upper template (101), the mounting plates on both sides of the upper template (101) are installed on the mounting plates on both sides of the lower template (1) through fixing bolts, and a first positioning support plate (2) is installed on the top of the upper template (101) and the bottom of the lower template (1); a second positioning support plate (201) is installed on both sides of the lower template (1); a cold air pump (3) and a hot air pump (301) are installed on the bottom of the lower template (1), respectively; an air outlet pipe (302) is installed on the output end of the cold air pump (3) and the hot air pump (301), wherein both air outlet pipes (302) are installed with a control valve.

2. The multi-runner injection mold with cyclic heat conduction function according to claim 1, characterized in that: A concave mold is provided at the top of the lower template (1), and a lower circulation pipe (102) is installed in the side wall of the lower template (1); the top end of the lower circulation pipe (102) is located at the top of the lower template (1), and an air intake pipe (103) is installed at one end of the bottom of the lower circulation pipe (102), wherein the outer end of the air intake pipe (103) passes through one end of the lower template (1).

3. The multi-runner injection mold with cyclic heat conduction function according to claim 2, characterized in that: A convex mold is provided at the bottom of the upper template (101), and an upper circulation pipe (104) is installed in the side wall of the upper template (101); the bottom end of the upper circulation pipe (104) is connected to the top end of the lower circulation pipe (102), and an air outlet pipe (105) is installed at the side end of the upper circulation pipe (104); the outer end of the air outlet pipe (105) passes through one end of the upper template (101); and mounting slots (106) are provided on both the lower circulation pipe (102) and the upper circulation pipe (104).

4. The multi-runner injection mold with cyclic heat conduction function according to claim 3, characterized in that: A driving rod (202) is rotatably mounted on both the positioning support plate 1 (2) and the positioning support plate 2 (201); a sealing member (203) is mounted on the outer end of the driving rod (202); and the inner end of the sealing member (203) passes through the side walls of the upper template (101) and the lower template (1) and is inserted into the interior of the mounting slot (106).

5. The multi-runner injection mold with cyclic heat conduction function according to claim 4, characterized in that: A diverter pipe (303) is installed at the outer end of the outlet pipe (302); the side ends of the two diverter pipes (303) are connected to a guide pipe 1 (304); and the side end of the guide pipe 1 (304) is connected to the outer end of the intake pipe (103).

6. The multi-runner injection mold with cyclic heat conduction function according to claim 5, characterized in that: A return pipe (306) is installed on the input ends of the cold air pump (3) and the hot air pump (301); the side end of the return pipe (306) is connected to the second guide pipe (305); the top end of the second guide pipe (305) is installed with a quick connector, which is connected to the outer end of the air outlet pipe (105).

7. The multi-runner injection mold with cyclic heat conduction function according to claim 6, characterized in that: The air outlet pipe (302) on the output end of the cold air pump (3) is connected to a guide air pipe (307); jet pipes (308) are installed at the bottom of both sides of the lower template (1); the jet pipes (308) are provided with air outlet grooves, the air outlet grooves face both sides of the lower template (1), and the side surfaces of the jet pipe (308) are connected to the side ends of the guide air pipe (307).

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