A new hot runner mold cooling device

Abstract

The utility model discloses a novel hot runner mold cooling device relates to injection mold technical field, the utility model discloses a mold is provided with injection port at the top, be provided with filtering mechanism on the mold, be provided with dismounting mechanism in the mold, the filtering mechanism includes fixed plate, the utility model pumps out the coolant in the coolant tank through main water pump, after flowing through butt joint pipeline and cooling pipeline, by secondary water pump and is sent into transfer casing and carries out heat exchange cooling, subsequently, the coolant is extracted by secondary water pump no, in this process, the filter plate is filtered and contains the impurity, according to the replacement demand after the long -term use of filter plate, through the compression first spring of the fixed frame that moves upward, make the baffle separate the spacing of filter plate, then, the baffle is translated, no longer blocks the filter plate, can directly extract the filter plate and clean or replace upwards, guarantee the cleanliness of coolant, simplify the maintenance process of filtering component.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and in particular relates to a novel hot runner mold cooling device. Background Technology

[0002] In the field of plastic injection molding, hot runner systems have been widely used due to their significant advantages such as saving raw materials, improving production efficiency, and improving product quality. Hot runner systems keep the plastic in the runner in a molten state through continuous heating, thereby avoiding the waste generated by traditional cold runners.

[0003] Chinese patent CN220216447U discloses a cooling device for a mold used in the production of refrigerator parts, including an upper mold, a lower mold, a liquid storage tank, and a circulating water pump. The lower mold is mounted on the lower side of the upper mold. A connecting flow channel is opened inside the lower mold. A first cooling chamber is opened on the upper side of the connecting flow channel. A second cooling chamber is arranged on the right side of the first cooling chamber. A third cooling chamber is arranged on the right side of the second cooling chamber. A return buffer chamber is opened at the left end of the connecting flow channel.

[0004] As shown above, the device uses a circulating water forced liquid cooling method through a liquid storage tank, circulating water pump, return water path, return buffer chamber, cooling branch, first cooling chamber, second cooling chamber, third cooling chamber, liquid inlet buffer chamber, and liquid inlet water path to quickly dissipate heat and cool the mold. However, after prolonged use, the coolant may contain impurities such as rust or scale, which may cause pipe blockage and reduce cooling efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a novel hot runner mold cooling device that solves the problem of potential pipe blockage leading to reduced cooling efficiency.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a novel hot runner mold cooling device, comprising a mold, an injection port fixedly connected to the top of the mold, a filtering mechanism provided on the mold, and a disassembly mechanism provided inside the mold; The filtration mechanism includes a fixed plate, a channel fixedly connected to the top of the fixed plate, a filter plate inserted into the inner wall of the channel, two sets of frames fixedly connected to the top of the fixed plate, two frames in each set, a guide rod fixedly connected to the inner wall of each set of frames, a fixed frame slidably connected to the outer wall of the two guide rods, two first springs fixedly connected to the top of the fixed frame, and a baffle slidably connected to the inner wall of the fixed frame.

[0007] Preferably, a coolant tank is fixedly connected to the outer wall of the mold, a main water pump is fixedly connected to the outer wall of the coolant tank via a pipe, a transfer housing is fixedly connected to the outer wall of the mold, a secondary water pump is fixedly connected to the outer wall of the transfer housing via a pipe, a second secondary water pump is fixedly connected to the outer wall of the channel via a pipe, and the output end of the second secondary water pump is fixedly connected to the inner wall of the coolant tank via a pipe.

[0008] Preferably, the outer wall of the fixing plate is fixedly connected to the outer wall of the transfer housing and the outer wall of the coolant tank, respectively; the ends of the two first springs away from the fixing frame are fixedly connected to the inner walls of the two frames, respectively; and the two guide rods are located inside the two first springs, respectively.

[0009] Preferably, the disassembly mechanism includes two baffles that are snapped onto the inner wall of the mold. The inner wall of the mold is fixedly connected to two sets of fixed housings, two in each set. The inner wall of each fixed housing contains identical parts. The inner wall of each fixed housing is fixedly connected to two telescopic rods. A limit block is fixedly connected to one side of the two telescopic rods that are close to each other.

[0010] Preferably, a second spring is fixedly connected to the side of each of the two limiting blocks that are far apart from each other, one end of each of the two second springs is fixedly connected to the inner wall of the fixed housing, the two telescopic rods are located inside the two second springs respectively, and a fixing block is engaged with the inner wall of each of the two limiting blocks.

[0011] Preferably, a cooling pipe is fixedly connected to the inner wall of the fixing block, a docking pipe is fixedly connected to the inner wall of the mold, the outer wall of the docking pipe contacts the outer wall of the cooling pipe, a lead screw is rotatably connected to the inner wall of the mold, and a sealing block is threadedly connected to the outer wall of the lead screw.

[0012] This utility model has the following beneficial effects: 1. This novel hot runner mold cooling device uses a main water pump to pump coolant from the coolant tank. After flowing through the docking pipe and cooling pipeline, the coolant is sent to the transfer housing by a secondary water pump for heat exchange and cooling. Subsequently, the coolant is drawn out by the second secondary water pump. During this process, the coolant flows through the filter plate to filter out impurities. To address the need to replace the filter plate after long-term use, the first spring is compressed by moving the fixed frame upward, causing the baffle to disengage from the filter plate. Then, the baffle is moved horizontally, no longer obstructing the filter plate, allowing it to be directly pulled out upward for cleaning or replacement. This ensures the cleanliness of the coolant and simplifies the maintenance process of the filter components.

[0013] 2. When maintenance of the internal cooling pipes is required, the operator first moves the limiting blocks to both sides, compresses the telescopic rod and the second spring, so that the limiting blocks are disengaged from the fixed blocks. Then, the screw is manually rotated to drive the sealing block to move, so that it is disengaged from the connection between the connecting pipe and the cooling pipe, and the sealing state is released, and the cooling pipe can be removed. This mechanism realizes the quick release and sealing of the pipe connection point, and improves the maintenance efficiency of the core cooling components.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the transfer housing structure of this utility model; Figure 3 This is a schematic diagram of the secondary water pump of this utility model; Figure 4 This is a schematic diagram of the filter plate structure of this utility model; Figure 5 This is a schematic diagram of the cooling pipe structure of this utility model; Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0017] The attached diagram lists the components represented by each number as follows: 1. Mold; 101. Injection port; 2. Filtration mechanism; 201. Coolant tank; 202. Main water pump; 203. Transfer housing; 204. Secondary water pump; 205. Channel; 206. Filter plate; 207. Frame; 208. Guide rod; 209. Fixing frame; 210. First spring; 211. Baffle; 212. Secondary water pump; 213. Fixing plate; 3. Disassembly mechanism; 301. Secondary baffle; 302. Fixing housing; 303. Telescopic rod; 304. Limiting block; 305. Secondary spring; 306. Fixing block; 307. Cooling pipe; 308. Connecting pipe; 309. Lead screw; 310. Sealing block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides two technical solutions: Figures 1-4 The first embodiment is shown: a novel hot runner mold cooling device, including a mold 1, an injection port 101 fixedly connected to the top of the mold 1, a filter mechanism 2 provided on the mold 1, and a disassembly mechanism 3 provided inside the mold 1; The filter mechanism 2 includes a fixed plate 213, a channel 205 fixedly connected to the top of the fixed plate 213, a filter plate 206 inserted into the inner wall of the channel 205, two sets of frames 207 fixedly connected to the top of the fixed plate 213, two in each set, a guide rod 208 fixedly connected to the inner wall of each set of frames 207, a fixed frame 209 slidably connected to the outer wall of the two guide rods 208, two first springs 210 fixedly connected to the top of the fixed frame 209, and a baffle 211 slidably connected to the inner wall of the fixed frame 209; Move the fixed frame 209 upward to compress the first spring 210, so that the baffle 211 is released from the limit on the filter plate 206. Then move the baffle 211 horizontally so that it no longer blocks the filter plate 206, and the filter plate can be directly pulled out upward for cleaning or replacement.

[0020] A coolant tank 201 is fixedly connected to the outer wall of mold 1. A main water pump 202 is fixedly connected to the outer wall of coolant tank 201 via a pipe. A transfer housing 203 is fixedly connected to the outer wall of mold 1. A secondary water pump 204 is fixedly connected to the outer wall of transfer housing 203 via a pipe. A second secondary water pump 212 is fixedly connected to the outer wall of channel 205 via a pipe. The output end of the second secondary water pump 212 is fixedly connected to the inner wall of coolant tank 201 via a pipe. The main water pump 202 pumps the coolant out of the coolant tank 201, which flows through the docking pipe 308 and the cooling pipe 307, and is then sent by the secondary water pump 204 into the transfer housing 203 for heat exchange and cooling. Subsequently, the coolant is drawn out by the secondary water pump 212.

[0021] The outer wall of the fixing plate 213 is fixedly connected to the outer wall of the transfer housing 203 and the outer wall of the coolant tank 201, respectively. The ends of the two first springs 210 away from the fixing frame 209 are fixedly connected to the inner walls of the two frames 207, respectively. The two guide rods 208 are located inside the two first springs 210, respectively.

[0022] The main water pump 202 transports the coolant from the coolant tank 201 to the connecting pipe 308 via a pipeline. Then, through the cooling pipe 307, it is transported to the secondary water pump 204 via the connecting pipe 308 on the other side. The coolant then enters the transfer housing 203, which integrates a heat exchanger to cool it down. The coolant is then drawn out by the secondary water pump 212 through a pipeline. During the extraction process, the coolant passes through the filter plate 206, which filters out impurities contained in the coolant. After long-term use, the filter plate 206 needs to be replaced. First, move the fixed frame 209 upward to compress the first spring 210. After the baffle 211 leaves the filter plate 206, manually move the position of the baffle 211 so that it no longer obstructs the filter plate 206. Then, the filter plate 206 can be pulled out upward for cleaning and replacement.

[0023] Figures 5-6 The second embodiment is shown. The main difference between the second and first embodiments is that the disassembly mechanism 3 includes two baffles 301 that are snapped into the inner wall of the mold 1. Two sets of fixed housings 302 are fixedly connected to the inner wall of the mold 1, two in each set. The inner wall of the fixed housing 302 contains the same parts. Two telescopic rods 303 are fixedly connected to the inner wall of the fixed housing 302. A limit block 304 is fixedly connected to the side of the two telescopic rods 303 that are close to each other. The operator first moves the limiting block 304 to both sides, compresses the telescopic rod 303 and the second spring 305, so that the limiting block 304 disengages from the locking and limiting of the fixed block 306.

[0024] Two limiting blocks 304 are respectively fixedly connected to the opposite sides of the two limiting blocks 304. One end of the two second springs 305 is fixedly connected to the inner wall of the fixed housing 302. Two telescopic rods 303 are respectively located inside the two second springs 305. A fixing block 306 is snapped into the inner wall of the two limiting blocks 304. A cooling pipe 307 is fixedly connected to the inner wall of the fixing block 306. A docking pipe 308 is fixedly connected to the inner wall of the mold 1. The outer wall of the docking pipe 308 is in contact with the outer wall of the cooling pipe 307. A lead screw 309 is rotatably connected to the inner wall of the mold 1. A sealing block 310 is threadedly connected to the outer wall of the lead screw 309. Manually rotate the lead screw 309 to drive the sealing block 310 to move, causing it to disengage from the connection between the docking pipe 308 and the cooling pipe 307, thus releasing the seal and allowing the cooling pipe 307 to be removed.

[0025] When it is necessary to disassemble and maintain the internal cooling pipe 307, first move the limiting blocks 304 to both sides to compress the telescopic rod 303 and the second spring 305, so that the limiting blocks 304 no longer limit the fixed block 306. Then manually rotate the screw 309 to move the sealing block 310, so that it no longer seals the connection between the connecting pipe 308 and the cooling pipe 307. Then the cooling pipe 307 can be removed for maintenance.

[0026] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical component are not specifically limited; conventional equipment can be used.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel hot runner mold cooling device, comprising a mold (1), wherein an injection port (101) is fixedly connected to the top of the mold (1), characterized in that, The mold (1) is provided with a filter mechanism (2), and the mold (1) is provided with a disassembly mechanism (3). The filtration mechanism (2) includes a fixed plate (213), a channel (205) is fixedly connected to the top of the fixed plate (213), a filter plate (206) is inserted into the inner wall of the channel (205), two sets of frames (207) are fixedly connected to the top of the fixed plate (213), two in each set, a guide rod (208) is fixedly connected to the inner wall of one set of the frames (207), a fixed frame (209) is slidably connected to the outer wall of the two guide rods (208), two first springs (210) are fixedly connected to the top of the fixed frame (209), and a baffle (211) is slidably connected to the inner wall of the fixed frame (209).

2. The novel hot runner mold cooling device according to claim 1, characterized in that, A coolant tank (201) is fixedly connected to the outer wall of the mold (1). A main water pump (202) is fixedly connected to the outer wall of the coolant tank (201) via a pipe. A transfer housing (203) is fixedly connected to the outer wall of the mold (1). A secondary water pump (204) is fixedly connected to the outer wall of the transfer housing (203) via a pipe. A second secondary water pump (212) is fixedly connected to the outer wall of the channel (205) via a pipe. The output end of the second secondary water pump (212) is fixedly connected to the inner wall of the coolant tank (201) via a pipe.

3. The novel hot runner mold cooling device according to claim 2, characterized in that, The outer wall of the fixed plate (213) is fixedly connected to the outer wall of the transfer housing (203) and the outer wall of the coolant tank (201), respectively. The ends of the two first springs (210) away from the fixed frame (209) are fixedly connected to the inner walls of the two frames (207), respectively. The two guide rods (208) are located inside the two first springs (210).

4. The novel hot runner mold cooling device according to claim 1, characterized in that, The disassembly mechanism (3) includes two baffles (301) that are snapped onto the inner wall of the mold (1). The inner wall of the mold (1) is fixedly connected to two sets of fixed housings (302), two in each set. The inner wall of the fixed housing (302) contains the same parts. The inner wall of the fixed housing (302) is fixedly connected to two telescopic rods (303). A limit block (304) is fixedly connected to the side of the two telescopic rods (303) that are close to each other.

5. A novel hot runner mold cooling device according to claim 4, characterized in that, Two limiting blocks (304) are respectively fixedly connected to a second spring (305) on the side away from each other. One end of the two second springs (305) is fixedly connected to the inner wall of the fixed housing (302). The two telescopic rods (303) are respectively located inside the two second springs (305). The inner walls of the two limiting blocks (304) are engaged with a fixing block (306).

6. A novel hot runner mold cooling device according to claim 5, characterized in that, The inner wall of the fixed block (306) is fixedly connected to a cooling pipe (307), the inner wall of the mold (1) is fixedly connected to a docking pipe (308), the outer wall of the docking pipe (308) is in contact with the outer wall of the cooling pipe (307), the inner wall of the mold (1) is rotatably connected to a lead screw (309), and the outer wall of the lead screw (309) is threadedly connected to a sealing block (310).

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