Heating equipment for injection mold

Abstract

The utility model discloses heating equipment for an injection mold. The heating equipment comprises a waste heat recovery mechanism and a driving motor mounted on the waste heat recovery mechanism, an ejection mechanism and a hydraulic telescopic cylinder mounted on one side of the ejection mechanism are arranged on one side of the waste heat recovery mechanism; the waste heat recovery mechanism comprises a base, one side of the top of the base is fixedly connected with a feeding auger, and one end of the feeding auger is fixedly connected with a driving motor; wherein the output end of the driving motor penetrates through the feeding auger and is fixedly connected with a feeding paddle, one end of the feeding paddle is rotationally connected with the feeding auger, and the top side of one end of the feeding auger is fixedly connected with a discharging hopper. And redundant heat can be recycled, the cost is saved, the parts in the lower mold can be ejected out through the ejection mechanism, and the parts can be conveniently taken.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a heating device for injection molds. Background Art

[0002] An injection mold is a tool used to produce plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. The heated and molten plastic is injected into the mold cavity under high pressure by an injection molding machine. After cooling and solidification, the molded product is obtained.

[0003] Publication No. CN214820658U discloses a heating device for injection molds, which can heat and insulate raw materials in a casting pipe, and further heat the raw materials by a heating plate before entering the injection mold, so that the temperature of the raw materials entering the injection mold will not drop, thereby improving the quality of the injection molded products. However, this patent still has the following problems in actual use:

[0004] Although the heating device for the injection mold heats and insulates the raw materials in the casting pipe, and further heats the raw materials through the heating plate before entering the injection mold, so that the temperature of the raw materials entering the injection mold will not drop, thereby improving the quality of the injection molded products, the excess heat of the heating plate cannot be recycled, resulting in a waste of resources.

[0005] A heating device for an injection mold is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the present utility model is to provide a heating device for an injection mold to solve the problem proposed in the above-mentioned background technology that the raw materials are currently heated and insulated in a casting pipe, and are further heated by a heating plate before entering the injection mold, so that the temperature of the raw materials after entering the injection mold will not drop, thereby improving the quality of the injection molded products, but the excess heat of the heating plate cannot be recycled, resulting in a waste of resources.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a heating device for an injection mold, comprising a waste heat recovery mechanism, and a drive motor installed on the waste heat recovery mechanism;

[0008] One side of the waste heat recovery mechanism is provided with an ejection mechanism, and a hydraulic telescopic cylinder installed on one side of the ejection mechanism;

[0009] Also includes:

[0010] The waste heat recovery mechanism includes a base, a feeding auger is fixedly connected to one side of the top of the base, and one end of the feeding auger is fixedly connected to the driving motor;

[0011] The output end of the driving motor passes through the feeding auger and is fixedly connected to a feeding paddle, one end of the feeding paddle is rotatably connected to the feeding auger, and the top side of one end of the feeding auger is fixedly connected to a lower hopper;

[0012] Among them, the outer side of the other end of the feeding auger is fixedly connected to the heating equipment body, the outer side of the feeding auger close to the heating equipment body is fixedly connected to the heat preservation cover, and one side of the bottom of the heat preservation cover is fixedly connected to a corrugated pipe.

[0013] Preferably, the outer sides of both ends of the corrugated pipe are fixedly connected to frames, the bottom of the frame is fixedly connected to the base, one side of the bottom of the frame is fixedly connected to a discharge valve, one side of the top of the frame is fixedly connected to a feed valve, and the side of the frame close to the feed valve is fixedly connected to a connecting sleeve.

[0014] Preferably, one end of the connecting sleeve is fixedly connected to the bellows, a first spring is fixedly connected to one side inside the connecting sleeve, one end of the first spring is fixedly connected to a moving block, a sealing ring is snap-connected to the outer side of one end of the moving block, and the outer side of the sealing ring is fit-connected to the connecting sleeve.

[0015] Preferably, the ejection mechanism includes a bottom plate, one side of the bottom plate is fixedly connected to the lower mold, one end of the lower mold is fittedly connected to the upper mold, one side of the upper mold is fixedly connected to the top plate, one side of the top plate is fixedly connected to the feeding auger, and an injection groove is opened at the center position inside the upper mold.

[0016] Preferably, one end of the hydraulic telescopic cylinder is fixedly connected to a bracket, the bottom of the bracket is fixedly connected to the base, both sides of the bracket close to the hydraulic telescopic cylinder are fixedly connected to electric telescopic rods, the output ends of the two electric telescopic rods are fixedly connected to the base plate, and the output end of the hydraulic telescopic cylinder passes through the base plate and is fixedly connected to a movable block.

[0017] Preferably, a first push rod is symmetrically fixedly connected to the center position of one side of the movable block, one end of the two first push rods is slidably connected to the lower mold, and a second push rod is fixedly connected to the side of the movable block close to the first push rod, and one end of the second push rod is slidably connected to the lower mold.

[0018] Preferably, a second spring is sleeved on the outside of the second push rod on one side of the movable block, one end of the second spring is fitly connected to the movable block, and the other end of the second spring is fitly connected to the lower mold, and a connecting limit rod is fixedly connected to the side of the lower mold close to the second spring, and one end of the connecting limit rod is snap-connected to the upper mold, and an injection mold groove is opened at the center position of the top of the lower mold.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the heating device for the injection mold can not only heat and insulate the raw materials inside the feeding auger by providing a waste heat recovery mechanism, but also recycle the excess heat to save costs. The ejection mechanism can eject the parts in the lower mold, making it easier to take out the parts. The specific contents are as follows:

[0020] 1. By setting up a waste heat recovery mechanism, not only can the raw materials inside the feeding auger be heated and insulated, but also the excess heat can be recycled and reused to save costs. The feeding paddle is driven by the driving motor to rotate, and the cooperation between the feeding paddle and the feeding auger can slowly inject the raw materials into the injection tank. The raw materials can be heated and insulated by the heating equipment body. Then, the excess heat is exchanged with the water outside when passing through the bellows, which can avoid the waste of heat energy. At the same time, the cooperation between the moving block and the connecting sleeve can realize the one-way flow of air in the bellows, preventing outside air from entering the bellows.

[0021] 2. By setting up an ejection mechanism, the parts in the lower mold can be ejected, which is convenient for taking the parts. The electric telescopic rod is used to drive the bottom plate to move, which is convenient for separating the upper mold from the lower mold. The movable block is driven to move left and right in the lower mold by the hydraulic telescopic cylinder. When the movable block moves to the right, the first push rod and the second push rod move toward the lower mold at the same time, so that the parts in the injection mold groove can be ejected for easy taking of the parts. When the hydraulic telescopic cylinder is reset, the restoring force of the compressed second spring is used to drive the first push rod and the second push rod to retract into the lower mold, which is convenient for the next processing of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front cross-section structure of the utility model;

[0023] Figure 2 For this utility model Figure 1 Enlarged structural diagram at the middle frame;

[0024] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle connecting sleeve;

[0025] Figure 4 For this utility model Figure 1Schematic diagram of the structure of the middle and lower molds and the upper mold in the separated state;

[0026] In the figure: 1. Waste heat recovery mechanism; 101. Base; 102. Feeding auger; 103. Driving motor; 104. Feeding paddle; 105. Lower hopper; 106. Heating equipment body; 107. Insulation cover; 108. Bellows; 109. Frame; 110. Discharge valve; 111. Feed valve; 112. Connecting sleeve; 113. First spring; 114. Moving block; 115. Sealing ring; 2. Ejection mechanism; 201. Bottom plate; 202. Lower mold; 203. Upper mold; 204. Top plate; 205. Injection tank; 206. Hydraulic telescopic cylinder; 207. Moving block; 208. First push rod; 209. Second push rod; 210. Second spring; 211. Connecting limit rod; 212. Injection mold tank; 213. Bracket; 214. Electric telescopic rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-4 The utility model provides a technical solution: a heating device for an injection mold, comprising a waste heat recovery mechanism 1, and a driving motor 103 installed on one side of the waste heat recovery mechanism 1; an ejection mechanism 2 is provided on one side of the waste heat recovery mechanism 1, and a hydraulic telescopic cylinder 206 installed on one side of the ejection mechanism 2; the waste heat recovery mechanism 1 comprises a base 101, a feeding auger 102 is fixedly connected to one side of the top of the base 101, and one end of the feeding auger 102 is fixedly connected to the driving motor 103; the output end of the driving motor 103 passes through the feeding auger 102 and is fixedly connected to a feeding paddle 104, one end of the feeding paddle 104 is rotatably connected to the feeding auger 102, the top side of one end of the feeding auger 102 is fixedly connected to a lower hopper 105, and one end of the feeding auger 102 is communicated with the injection groove 205;

[0029] The outer side of the other end of the feeding auger 102 is fixedly connected to a heating device body 106. The outer side of the feeding auger 102 near the heating device body 106 is fixedly connected to a heat preservation cover 107. One side of the bottom of the heat preservation cover 107 is fixedly connected to a bellows 108. The raw materials can be heated and kept warm by the heating device body 106. Then, the excess heat is exchanged with the water on the outside when passing through the bellows 108, which can avoid the waste of heat energy.

[0030] The outer sides of both ends of the bellows 108 are fixedly connected with frames 109, the bottom of the frame 109 is fixedly connected to the base 101, one side of the bottom of the frame 109 is fixedly connected with a discharge valve 110, and one side of the top of the frame 109 is fixedly connected with a feed valve 111. The side of the frame 109 close to the feed valve 111 is fixedly connected with a connecting sleeve 112, one end of the connecting sleeve 112 is fixedly connected to the bellows 108, one side inside the connecting sleeve 112 is fixedly connected with a first spring 113, one end of the first spring 113 is fixedly connected with a moving block 114, the outer side of one end of the moving block 114 is snap-connected with a sealing ring 115, and the outer side of the sealing ring 115 is fitly connected to the connecting sleeve 112. By utilizing the cooperation between the moving block 114 and the connecting sleeve 112, one-way circulation of airflow in the bellows 108 can be achieved, thereby preventing outside air from entering the bellows 108;

[0031] The ejection mechanism 2 includes a bottom plate 201, a lower mold 202 is fixedly connected to one side of the bottom plate 201, an upper mold 203 is fitted to one end of the lower mold 202, a top plate 204 is fixedly connected to one side of the upper mold 203, and one side of the top plate 204 is fixedly connected to the feeding auger 102. An injection groove 205 is provided at the center of the upper mold 203 to facilitate the injection of raw materials into the mold.

[0032] One end of the hydraulic telescopic cylinder 206 is fixedly connected to a bracket 213, the bottom of the bracket 213 is fixedly connected to the base 101, and both sides of the bracket 213 near the hydraulic telescopic cylinder 206 are fixedly connected to electric telescopic rods 214. The output ends of the two electric telescopic rods 214 are fixedly connected to the bottom plate 201. The output end of the hydraulic telescopic cylinder 206 passes through the bottom plate 201 and is fixedly connected to the movable block 207. The bottom plate 201 is driven to move left and right through the electric telescopic rods 214.

[0033] A first push rod 208 is symmetrically fixedly connected to the center position of one side of the movable block 207. One end of the two first push rods 208 is slidably connected to the lower mold 202. A second push rod 209 is fixedly connected to the side of the movable block 207 close to the first push rod 208. One end of the second push rod 209 is slidably connected to the lower mold 202. The movable block 207 drives the first push rod 208 and the second push rod 209 to move simultaneously.

[0034] A second spring 210 is sleeved on the outside of the second push rod 209 on one side of the movable block 207. One end of the second spring 210 is fitly connected to the movable block 207, and the other end of the second spring 210 is fitly connected to the lower mold 202. A connecting limit rod 211 is fixedly connected to the side of the lower mold 202 close to the second spring 210. One end of the connecting limit rod 211 is engaged and connected to the upper mold 203. An injection mold groove 212 is opened at the center position of the top of the lower mold 202. The restoring force of the second spring 210 after being compressed is used to drive the first push rod 208 and the second push rod 209 to retract into the lower mold 202, so as to facilitate the next use of the mold.

[0035] Working principle: Before using this kind of heating equipment for injection mold, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 4 As shown, first, the driving motor 103 is started to drive the feeding paddle 104 to rotate. The feeding paddle 104 and the feeding auger 102 cooperate to slowly inject the raw material into the injection groove 205. The raw material can be heated and kept warm by the heating device body 106. Then, the excess heat is exchanged with the water outside when passing through the bellows 108, thereby avoiding the waste of heat energy. At the same time, the cooperation between the moving block 114 and the connecting sleeve 112 can realize the one-way flow of air in the bellows 108, thereby preventing the outside air from entering the bellows 108.

[0036] Secondly, the electric telescopic rod 214 is started to drive the base plate 201 to move, so as to separate the upper mold 203 from the lower mold 202. Then, the movable block 207 is driven to move left and right in the lower mold 202 by the hydraulic telescopic cylinder 206. When the movable block 207 moves to the right, the first push rod 208 and the second push rod 209 move toward the lower mold 202 at the same time, so that the parts in the injection mold groove 212 can be ejected to facilitate the removal of the parts. When the hydraulic telescopic cylinder 206 is reset, the restoring force of the compressed second spring 210 is used to drive the first push rod 208 and the second push rod 209 to retract into the lower mold 202, so as to facilitate the next processing of the mold.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heating device for an injection mold, comprising a waste heat recovery mechanism (1), and a drive motor (103) installed on the waste heat recovery mechanism (1); A ejection mechanism (2) and a hydraulic telescopic cylinder (206) installed on one side of the ejection mechanism (2) are provided on one side of the waste heat recovery mechanism (1); It is characterized by: Also includes: The waste heat recovery mechanism (1) comprises a base (101), a feeding auger (102) is fixedly connected to one side of the top of the base (101), and one end of the feeding auger (102) is fixedly connected to a driving motor (103); The output end of the driving motor (103) passes through the feeding auger (102) and is fixedly connected to a feeding paddle (104); one end of the feeding paddle (104) is rotatably connected to the feeding auger (102); and a lower hopper (105) is fixedly connected to the top side of one end of the feeding auger (102); The outer side of the other end of the feeding auger (102) is fixedly connected to the heating device body (106), the outer side of the feeding auger (102) close to the heating device body (106) is fixedly connected to the heat preservation cover (107), and one side of the bottom of the heat preservation cover (107) is fixedly connected to a bellows (108).

2. The heating device for an injection mold according to claim 1, characterized in that: The outer sides of both ends of the bellows (108) are fixedly connected to frames (109), the bottom of the frame (109) is fixedly connected to the base (101), one side of the bottom of the frame (109) is fixedly connected to a discharge valve (110), one side of the top of the frame (109) is fixedly connected to a feed valve (111), and the side of the frame (109) close to the feed valve (111) is fixedly connected to a connecting sleeve (112).

3. The heating device for an injection mold according to claim 2, characterized in that: One end of the connecting sleeve (112) is fixedly connected to the bellows (108); one side of the interior of the connecting sleeve (112) is fixedly connected to a first spring (113); one end of the first spring (113) is fixedly connected to a moving block (114); the outer side of one end of the moving block (114) is snap-connected to a sealing ring (115); and the outer side of the sealing ring (115) is in close contact with the connecting sleeve (112).

4. The heating device for an injection mold according to claim 1, characterized in that: The ejection mechanism (2) comprises a bottom plate (201), one side of the bottom plate (201) is fixedly connected to a lower mold (202), one end of the lower mold (202) is fittedly connected to an upper mold (203), one side of the upper mold (203) is fixedly connected to a top plate (204), one side of the top plate (204) is fixedly connected to a feeding auger (102), and an injection groove (205) is provided at the center of the interior of the upper mold (203).

5. The heating device for an injection mold according to claim 1, characterized in that: One end of the hydraulic telescopic cylinder (206) is fixedly connected to a bracket (213), the bottom of the bracket (213) is fixedly connected to the base (101), both sides of the bracket (213) close to the hydraulic telescopic cylinder (206) are fixedly connected to electric telescopic rods (214), the output ends of the two electric telescopic rods (214) are fixedly connected to the bottom plate (201), and the output end of the hydraulic telescopic cylinder (206) passes through the bottom plate (201) and is fixedly connected to a movable block (207).

6. The heating device for an injection mold according to claim 5, characterized in that: A first push rod (208) is symmetrically fixedly connected to the center position of one side of the movable block (207), and one end of the two first push rods (208) is slidably connected to the lower mold (202). A second push rod (209) is fixedly connected to the side of the movable block (207) close to the first push rod (208), and one end of the second push rod (209) is slidably connected to the lower mold (202).

7. The heating device for an injection mold according to claim 6, characterized in that: A second spring (210) is sleeved on the outer side of the second push rod (209) on one side of the movable block (207), one end of the second spring (210) is closely connected to the movable block (207), and the other end of the second spring (210) is closely connected to the lower mold (202). A connecting limit rod (211) is fixedly connected to one side of the lower mold (202) close to the second spring (210), one end of the connecting limit rod (211) is snap-connected to the upper mold (203), and an injection mold groove (212) is provided at the center position of the top of the lower mold (202).

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