Injection mold cleaning device

Abstract

An injection mold cleaning device comprises an electromagnetic coil heating assembly, a cleaning auxiliary assembly and a mold support assembly. The electromagnetic coil heating assembly generates a high-frequency changing magnetic field through high-frequency alternating current, so that the injection mold is heated through electromagnetic induction, the temperature of the injection mold is increased to the melting point of residual plastic, the residual plastic in a runner flows out of the mold runner after being heated and melted, and cleaning of the residual plastic in the injection mold is achieved. Due to the fact that residual plastic is melted according to the electromagnetic induction heating principle, direct contact with the injection mold is avoided, mechanical damage to the mold and a runner is avoided, and the performance and the service life of the injection mold are not affected.

Description

Technical Field

[0001] The invention belongs to the technical field of injection mold maintenance equipment, and specifically refers to an injection mold cleaning device. Background Art

[0002] Injection mold is a tool for producing plastic products, mainly composed of pouring system, temperature control system, molding parts and structural parts. The pouring system refers to the flow channel part before the plastic enters the cavity from the nozzle, including the main channel, cold material hole, branch channel and gate, etc. During injection molding, there may be plastic residue or breakage in the flow channel of the mold, causing blockage of the flow channel and affecting subsequent injection molding operations.

[0003] It is difficult to clean a clogged runner, mainly because there are many different mold models and the runners of various models are different. At the same time, the structure of the runner is complex and its finish affects the precision and quality of the final product. Using rigid tools to remove residual plastic will damage the inner surface finish of the runner, causing irreparable damage to the mold and shortening the service life of the mold. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an injection mold cleaning device to at least partially solve the above technical problems.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes an injection mold cleaning device, including an electromagnetic coil heating component, a cleaning auxiliary component and a mold support component. The electromagnetic coil heating component includes an alternating coil and a coil frame, the cleaning auxiliary component includes a mold lifting mechanism, the alternating coil is arranged on the coil frame, the mold support component is arranged below the alternating coil, the mold support component is configured to place an injection mold, the alternating coil is configured to heat the injection mold, and the top of the coil frame is provided with a top opening, and the top opening is connected to the inside of the alternating coil.

[0006] The mold lifting mechanism is arranged above the electromagnetic coil heating component, and the mold lifting mechanism is configured to lift the injection mold.

[0007] Furthermore, the electromagnetic coil heating assembly also includes a frame base and a waste container. The coil frame is provided with triangular legs, and the coil frame is set on the frame base through the triangular legs. The frame base is provided with a waste container, and the waste container is located below the alternating coil. The waste container is configured to receive the molten plastic in the injection mold.

[0008] Furthermore, a container slide rail is provided on the frame base, a bottom slider is provided at the bottom of the waste container, the bottom slider is slidably arranged in the container slide rail, and the waste container is movably arranged in the container slide rail through the bottom slider.

[0009] Furthermore, a bottom opening is provided at the bottom of the coil frame, and the position of the bottom opening corresponds to the alternating coil in the vertical direction. The mold support assembly includes a fixed support and a sliding support, and the sliding support is slidably provided on the fixed support. The sliding support is located below the bottom opening, and the sliding support is located between the bottom opening and the waste container.

[0010] Furthermore, the fixed bracket is provided with a bracket slide rail, the sliding bracket is slidably arranged in the bracket slide rail, and the sliding bracket is provided with a bracket hollow.

[0011] Furthermore, the cleaning auxiliary component also includes an auxiliary blowing mechanism, which is arranged above the alternating coil. The auxiliary blowing mechanism includes a blowing winch and an air nozzle, and the blowing winch is configured to control the lifting and lowering of the air nozzle.

[0012] Furthermore, the auxiliary blowing mechanism also includes an infrared temperature sensor, and the infrared temperature sensor is configured to detect the temperature of the injection mold.

[0013] Furthermore, the mold lifting mechanism includes a lifting winch and a mold hanger, the mold hanger is configured to lift the injection mold, and the lifting winch is configured to control the lifting and lowering of the mold hanger.

[0014] Furthermore, the cleaning auxiliary component also includes a crane mechanism, which includes a crane track and a carrying crane, the carrying crane is slidably arranged on the carrying crane, and the auxiliary blowing mechanism and the mold lifting mechanism are both fixedly connected to the carrying crane.

[0015] Compared with the prior art, the present invention has the following advantages: The present invention comprises an electromagnetic coil heating component, a cleaning auxiliary component and a mold support component. The electromagnetic coil heating component generates a high-frequency changing magnetic field through high-frequency alternating current, thereby heating the injection mold through electromagnetic induction, so that the temperature of the injection mold is increased to the melting point of the residual plastic. The residual plastic in the flow channel is melted by the heat and flows out of the mold flow channel, thereby realizing the cleaning of the residual plastic in the injection mold. Since the present embodiment adopts the principle of electromagnetic induction heating to melt the residual plastic, there is no direct contact with the injection mold, which will not cause mechanical damage to the mold and the runner, and will not affect the performance and service life of the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A three-dimensional view of the injection mold cleaning device proposed in an embodiment of the present invention Figure 1 ; Figure 2 A front view of an injection mold cleaning device provided in an embodiment of the present invention; Figure 3 for Figure 2 The enlarged view at center Ⅰ; Figure 4 A left side view of the injection mold cleaning device provided in an embodiment of the present invention; Figure 5 A top view of an injection mold cleaning device according to an embodiment of the present invention; Figure 6 for Figure 5 The cross-sectional view along the AA direction; Figure 7 A three-dimensional view of the injection mold cleaning device proposed in an embodiment of the present invention Figure 2 ; Figure 8 for Figure 7 Magnified view at center II; Fig. 9 A three-dimensional diagram of a cleaning auxiliary component of an injection mold cleaning device according to an embodiment of the present invention.

[0017] Among them, 100, electromagnetic coil heating component, 200, cleaning auxiliary component, 300, mold bracket component, 101, alternating coil, 102, coil frame, 103, top opening, 104, bottom opening, 105, triangular support leg, 106, frame base, 107, container slide rail, 108, waste container, 109, bottom slider, 201, auxiliary blowing mechanism, 202, blowing winch, 203, air nozzle, 204, infrared temperature sensor, 205, mold lifting mechanism, 206, lifting winch, 207, mold lifting device, 208, overhead crane mechanism, 209, overhead crane track, 210, load-bearing overhead crane, 301, fixed bracket, 302, bracket slide rail, 303, sliding bracket, 304, bracket hollowing.

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0021] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, this embodiment is used to clean metal injection molds, especially molds whose mold runners are blocked by residual plastic. This embodiment includes an electromagnetic coil heating component 100, a cleaning auxiliary component 200 and a mold support component 300. The electromagnetic coil heating component 100 generates a high-frequency changing magnetic field through high-frequency alternating current, thereby heating the injection mold through electromagnetic induction, so that the temperature of the injection mold is increased to the melting point of the residual plastic. The residual plastic in the runner is melted by the heat and flows out of the mold runner, thereby achieving the cleaning of the residual plastic in the injection mold; because this embodiment adopts the principle of electromagnetic induction heating to melt the residual plastic, there is no direct contact with the injection mold, and no mechanical damage will be caused to the mold and the runner, and the performance and service life of the injection mold will not be affected.

[0022] Specifically, the electromagnetic coil heating assembly 100 in this embodiment includes an alternating coil 101 and a coil frame 102. The alternating coil 101 is arranged on the coil frame 102. A top opening 103 is arranged at the top of the coil frame 102. The mold support assembly 300 is arranged below the alternating coil 101. The cleaning auxiliary assembly 200 includes a mold lifting mechanism 205. When this embodiment is used, the injection mold is first lifted by the mold lifting mechanism 205, and then the injection mold is placed in the interior of the alternating coil 101 through the top opening 103. The injection mold is placed on the mold support assembly 300. At this time, high-frequency alternating current is passed through the alternating coil 101, so that the alternating coil 101 generates a high-frequency changing magnetic field. Since the injection mold is in the high-frequency changing magnetic field, a plurality of small currents are generated in the injection mold, thereby increasing the temperature of the injection mold. As the temperature of the injection mold increases, the residual plastic in the injection mold gradually melts and flows out of the mold runner, thereby achieving the cleaning of the injection mold. After cleaning, the injection mold is lifted by the cleaning auxiliary assembly 200 and taken out of the alternating coil 101 through the top opening 103.

[0023] In this embodiment, the mold lifting mechanism 205 and the alternating coil 101 are arranged to work together, and the temperature of the injection mold is increased by using the principle of electromagnetic induction heating, so as to melt the residual plastic, thereby replacing the manual cleaning of the injection mold by workers, improving the cleaning effect and efficiency without damaging the injection mold, and reducing safety hazards.

[0024] This embodiment utilizes the alternating coil 101 to heat the injection mold. Electromagnetic induction will not act on non-conductive materials, and will not generate dissipated waste heat. The use process is safe and reliable, and will not cause the temperature of the workshop to rise.

[0025] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the electromagnetic coil heating component 100 in this embodiment also includes a frame base 106 and a waste container 108. The waste container 108 is mainly used to receive the molten waste dripping after the injection mold is heated. The waste container 108 and the coil frame 102 are both arranged on the frame base 106. The coil frame 102 is provided with a triangular support leg 105. The triangular support leg 105 can provide a more stable fixing effect. The waste container 108 is located below the alternating coil 101. When this embodiment is in use, the alternating coil 101 electrically heats the injection mold. After the temperature of the injection mold increases, the plastic remaining in the mold and the runner begins to melt. The molten residual plastic flows out of the injection mold and drips downward into the waste container 108. The waste container 108 collects the molten plastic to prevent the molten plastic from splashing and injuring people after dripping.

[0026] like Figure 3 and Figure 6 As shown, a container slide rail 107 is provided on the frame base 106 in this embodiment, and a bottom slider 109 is provided at the bottom of the waste container 108. The waste container 108 is movably arranged in the container slide rail 107 through the bottom slider 109. The waste container 108 can slide back and forth in the container slide rail 107. When using this embodiment, the waste container 108 is slid on the container slide rail 107 to the bottom of the alternating coil 101, and the waste container 108 can receive the molten plastic dripping from the injection mold.

[0027] After the injection mold is cleaned, the waste container 108 is slid on the container slide rail 107 to the outside of the frame base 106, and the inside of the waste container 108 can be cleaned. Since the function of the waste container 108 is to receive the molten plastic, its surface can be mechanically cleaned using tools. After each use, wait until the molten plastic in the waste container 108 solidifies and then use the tool to take out the plastic in the waste container 108.

[0028] like Figure 5 and Figure 6As shown, a bottom opening 104 is further provided at the bottom of the coil frame 102 in this embodiment, and the position of the bottom opening 104 corresponds to the alternating coil 101 in the vertical direction. At the same time, the specific structure of the mold support assembly 300 includes a fixed support 301 and a sliding support 303. The sliding support 303 is slidably provided on the fixed support 301, and the sliding support 303 is located between the bottom opening 104 and the waste container 108.

[0029] When in use, the present embodiment first slides the sliding bracket 303 to the bottom of the alternating coil 101, and the mold lifting mechanism 205 places the injection mold on the sliding bracket 303 through the top opening 103 and the bottom opening 104. The alternating coil 101 heats the injection mold, and the residual plastic in the injection mold melts and drips into the waste container 108 below through the sliding bracket 303. After the injection mold is cleaned, the sliding bracket 303 is slid to the outside of the electromagnetic coil heating assembly 100 to clean the sliding bracket 303.

[0030] like Figure 5 and Figure 8 As shown, a bracket slide rail 302 is provided on the fixed bracket 301 in this embodiment, and the sliding bracket 303 is slidably connected in the bracket slide rail 302. The bracket slide rail 302 limits the sliding direction and sliding stroke of the sliding bracket 303, ensuring that the sliding bracket 303 can accurately slide to the bottom of the alternating coil 101.

[0031] The sliding bracket 303 in this embodiment is provided with a bracket hollow 304 to facilitate the molten plastic dripping from the injection mold to pass through the sliding bracket 303 through the bracket hollow 304 and fall into the waste container 108, thereby preventing the molten plastic from accumulating on the sliding bracket 303.

[0032] like Figure 2 , Figure 6 , Figure 7 and Fig. 9 As shown, the specific structure of the cleaning auxiliary component 200 in this embodiment also includes an auxiliary blowing mechanism 201, and the auxiliary blowing mechanism 201 is arranged above the alternating coil 101. The specific structure of the auxiliary blowing mechanism 201 includes a blowing winch 202 and an air nozzle 203. The blowing winch 202 can control the lifting and lowering of the air nozzle 203, and the air nozzle 203 can spray high-pressure air.

[0033] When this embodiment is in use, after the mold lifting mechanism 205 places the injection mold into the alternating coil 101, the alternating coil 101 performs electromagnetic heating on the injection mold, and the blowing winch 202 lowers the air nozzle 203 to a position close to the injection mold. The air nozzle 203 sprays high-pressure air toward the injection mold. The high-pressure air pushes the molten plastic to flow out of the injection mold faster, thereby improving the cleaning efficiency of the injection mold and preventing the molten plastic from hanging on the surface of the injection mold.

[0034] The air nozzle 203 in this embodiment is made of non-conductive material. When in use, the air nozzle 203 can be lowered into the alternating coil 101. Since the air nozzle 203 has no conductivity, the alternating magnetic field generated by the alternating coil 101 will not affect the air nozzle 203, thereby ensuring the stable operation of the air nozzle 203.

[0035] like Fig. 9 As shown, the auxiliary blowing mechanism 201 proposed in this embodiment also includes an infrared temperature sensor 204, which monitors the temperature of the injection mold in real time. When the temperature of the injection mold rises to the melting temperature of the residual plastic, the power of the alternating coil 101 can be appropriately reduced to avoid the burning of the residual plastic caused by excessively high temperature of the injection mold.

[0036] In this embodiment, the infrared temperature sensor 204 is provided to detect the temperature of the injection mold without contacting the injection mold, and is suitable for long-distance safety detection.

[0037] like Figure 2 , Figure 7 and Fig. 9 As shown, the mold lifting mechanism 205 in this embodiment includes a lifting winch 206 and a mold hanger 207. The mold hanger 207 is configured to lift the injection mold, and the lifting winch 206 is configured to control the lifting and lowering of the mold hanger 207. When this embodiment is in use, the injection mold is fixed on the mold hanger 207. When the lifting winch 206 is working, it can drive the injection mold to rise through the mold hanger 207, so that the injection mold can be placed into the interior of the alternating coil 101 through the top opening 103. After the injection mold is cleaned, the lifting winch 206 takes the injection mold out of the alternating coil 101 through the mold hanger 207.

[0038] like Figure 2 , Figure 7 and Fig. 9As shown, the cleaning auxiliary component 200 of the present embodiment also includes an overhead crane mechanism 208, the overhead crane mechanism 208 includes an overhead crane track 209 and a carrying overhead crane 210, the carrying overhead crane 210 is slidably arranged on the carrying overhead crane 210, the auxiliary blowing mechanism 201 and the mold lifting mechanism 205 are both fixedly connected to the carrying overhead crane 210, the carrying overhead crane 210 drives the auxiliary blowing mechanism 201 and the mold lifting mechanism 205 to move on the overhead crane track 209, so as to facilitate the auxiliary blowing mechanism 201 and the mold lifting mechanism 205 to move and blow the injection mold.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. An injection mold cleaning device, characterized in that: It comprises an electromagnetic coil heating component (100), a cleaning auxiliary component (200) and a mold support component (300), wherein the electromagnetic coil heating component (100) comprises an alternating coil (101) and a coil frame (102), and the cleaning auxiliary component (200) comprises a mold lifting mechanism (205); The alternating coil (101) is arranged on a coil frame (102), the mold support assembly (300) is arranged below the alternating coil (101), the mold support assembly (300) is used to place an injection mold, the alternating coil (101) is configured to heat the injection mold placed on the mold support assembly (300), and a top opening (103) is provided at the top of the coil frame (102), and the top opening (103) is communicated with the interior of the alternating coil (101); The mold lifting mechanism (205) is arranged above the electromagnetic coil heating component (100), and the mold lifting mechanism (205) is configured to lift the injection mold.

2. The injection mold cleaning device according to claim 1, characterized in that: The electromagnetic coil heating assembly (100) further comprises a frame base (106) and a waste container (108); the coil frame (102) is provided with triangular legs (105); the coil frame (102) is arranged on the frame base (106) via the triangular legs (105); a waste container (108) is provided on the frame base (106); the waste container (108) is located below the alternating coil (101); and the waste container (108) is configured to receive molten plastic in an injection mold.

3. The injection mold cleaning device according to claim 2, characterized in that: A container slide rail (107) is provided on the frame base (106), a bottom slider (109) is provided at the bottom of the waste container (108), the bottom slider (109) is slidably arranged in the container slide rail (107), and the waste container (108) is movably arranged in the container slide rail (107) via the bottom slider (109).

4. The injection mold cleaning device according to claim 2, characterized in that: The bottom of the coil frame (102) is provided with a bottom opening (104), the position of the bottom opening (104) corresponds to the alternating coil (101) in the vertical direction, the mold support assembly (300) comprises a fixed support (301) and a sliding support (303), the sliding support (303) is slidably arranged on the fixed support (301), the sliding support (303) is located below the bottom opening (104), and the sliding support (303) is located between the bottom opening (104) and the waste container (108).

5. The injection mold cleaning device according to claim 4, characterized in that: The fixed bracket (301) is provided with a bracket slide rail (302), the sliding bracket (303) is slidably arranged in the bracket slide rail (302), and the sliding bracket (303) is provided with a bracket hollow (304).

6. The injection mold cleaning device according to claim 1, characterized in that: The cleaning auxiliary component (200) further comprises an auxiliary blowing mechanism (201), wherein the auxiliary blowing mechanism (201) is arranged above the alternating coil (101), and the auxiliary blowing mechanism (201) comprises a blowing winch (202) and an air nozzle (203), wherein the blowing winch (202) is configured to control the lifting and lowering of the air nozzle (203).

7. The injection mold cleaning device according to claim 6, characterized in that: The auxiliary blowing mechanism (201) further comprises an infrared temperature sensor (204), wherein the infrared temperature sensor (204) is configured to detect the temperature of the injection mold.

8. The injection mold cleaning device according to claim 7, characterized in that: The mold lifting mechanism (205) comprises a lifting hoist (206) and a mold hanger (207); the mold hanger (207) is configured to be used for lifting the injection mold; and the lifting hoist (206) is configured to control the lifting and lowering of the mold hanger (207).

9. The injection mold cleaning device according to claim 8, characterized in that: The cleaning auxiliary component (200) further comprises a crane mechanism (208), wherein the crane mechanism (208) comprises a crane track (209) and a supporting crane (210), wherein the supporting crane (210) is slidably mounted on the supporting crane (210), and the auxiliary blowing mechanism (201) and the mold lifting mechanism (205) are both fixedly connected to the supporting crane (210).

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