Cooling device for plastic injection mold

Abstract

The utility model discloses a cooling device for a plastic injection mold, and relates to the technical field of plastic injection molds. The cooling device comprises a base, supporting columns are fixedly connected to the four corners of the top of the base, a partition plate is fixedly connected to the outer surfaces of the four supporting columns, a cooling assembly is arranged above the partition plate, and a refrigeration box is fixedly connected to the top of the base. The cooling assembly is arranged, specifically, water flow is firstly refrigerated in the refrigeration box, then the water pump is started to convey the refrigerated water flow into the cooling box, then the injection mold is placed in the cooling box to be cooled, after cooling is completed, the water drainage opening in the right side of the cooling box is opened, and then the water flow flows into the refrigeration box through the water drainage pipe; and then the water flow is refrigerated again, the refrigerated water flow is conveyed into the cooling box, and the process is repeated, so that the water flow is always in a refrigerated state before the injection mold is cooled, and therefore, the cooling efficiency of the mold is improved, the cooling time is shortened, and demolding is more convenient.

Description

Technical Field

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

[0002] During the continuous processing of the injection mold, the injected material is constantly heated and the mold temperature rises. Due to poor heat dissipation, the product molding is slow, the demolding time is prolonged, and the product is deformed during the demolding process. Therefore, a cooling device is needed to cool the injection mold.

[0003] The existing cooling device usually puts the injection mold into water for cooling, but the cooling water does not have the function of replacement. As the same cooling water is used for cooling multiple times, the water flow temperature will gradually increase, which will cause low cooling efficiency and long time in subsequent cooling. At the same time, slow cooling will directly affect the demolding of the plastic material. Therefore, we propose a cooling device for plastic injection molds. Utility Model Content

[0004] The purpose of the utility model is to provide a cooling device for a plastic injection mold. By setting a cooling component, the water flow of the injection mold can always be in a refrigerated state before cooling, thereby improving the cooling efficiency of the mold, reducing the cooling time, and making demoulding easier. The problem that the existing cooling device gradually increases the water flow temperature as the same cooling water is used for cooling multiple times, resulting in low cooling efficiency and long time consumption during subsequent cooling is solved.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a cooling device for a plastic injection mold, comprising a base, the four corners of the top of the base are fixedly connected to support columns, the outer surfaces of the four support columns are fixedly connected to partitions, a cooling component is arranged above the partition, a refrigeration box is fixedly connected to the top of the base, a refrigerator is fixedly connected to the left side of the refrigeration box, and a water pump is arranged on the back of the refrigerator;

[0007] The cooling assembly includes a cooling box, a hydraulic cylinder is arranged inside the cooling box, a drain port is opened on the right side of the cooling box, a drain pipe is fixedly connected to the right side of the cooling box, and a sealing seat is arranged on the right side of the inner wall of the cooling box. By arranging the cooling assembly, the water flow of the injection mold can always be in a refrigerated state before cooling, thereby improving the cooling efficiency of the mold, reducing the cooling time, and making demoulding easier.

[0008] Furthermore, a water inlet pipe is fixedly connected to the right side of the refrigeration box, a water outlet pipe is fixedly connected to the left side of the refrigeration box, the left side of the water outlet pipe is fixedly connected to the right output end of the water pump, the bottom of the water pump is fixedly connected to the top of the base, a refrigeration pipe is arranged inside the refrigeration box, one end of the refrigeration pipe is fixedly connected to the refrigerator, and a delivery pipe is fixedly connected to the left side of the water pump. Water is injected into the refrigeration box through the water inlet pipe, and then the refrigerator is started to cool the water through the refrigeration pipe. After cooling is completed, the water pump is started to pump out the water in the refrigeration box through the water outlet pipe, and then the water enters the cooling box through the delivery pipe. At this time, the water inside the cooling box is in a cooling state.

[0009] Furthermore, a storage groove is provided on the right side of the sealing seat, and an extrusion seat is slidably connected to the inner wall of the storage groove, a rubber sealing ring is fixedly connected to the right side of the extrusion seat, and a sliding groove is provided on the left side of the inner wall of the storage groove, and a limit rod is slidably connected to the inner wall of the sliding groove, and a spring is sleeved on the outer side of the limit rod. After the sealing seat is reset downward, the rubber sealing ring contacts the inner wall of the cooling box, and the extrusion seat drives the rubber sealing ring to fit tightly against the inner wall of the cooling box under the action of the spring elasticity, thereby improving the sealing effect, and the drain outlet can be sealed to prevent water overflow.

[0010] Furthermore, the top and bottom output ends of the hydraulic cylinder are fixedly connected with connecting blocks, the outer side of the upper connecting block is rotatably connected to a support block one via a pin shaft, and the outer side of the lower connecting block is rotatably connected to a fixed block via a pin shaft, the right side of the fixed block is fixedly connected to the left side of the sealing seat, and the right side of the support block one is fixedly connected to the right side of the inner wall of the cooling box, an opening is provided inside the partition, and an opening is provided inside the bottom of the drain pipe. Since the lower connecting block rotates on the fixed block and the upper connecting block rotates on the support block one, it will not affect the operation of the hydraulic cylinder.

[0011] Furthermore, a connecting seat is fixedly connected to the top of the sealing seat, a rotating hole is opened inside the connecting seat, a fixing rod is rotatably connected to the inner wall of the rotating hole, and a supporting block 2 is fixedly connected to the front and back sides of the fixing rod. The right side of the supporting block 2 is fixedly connected to the inner wall of the cooling box, the right side of the rubber sealing ring contacts the inner wall of the cooling box, and the top of the conveying pipe is fixedly connected to the left side of the cooling box. When the sealing seat moves, it drives the connecting seat to rotate on the fixing rod, thereby realizing the function of flipping the sealing seat.

[0012] Furthermore, the right side of the limit rod is fixedly connected to the left side of the extrusion seat, the left side of the spring is fixedly connected to the outer surface of the limit rod, and the right side of the spring is fixedly connected to the right side of the inner wall of the sliding groove. The limit rod is used to limit the extrusion seat and facilitates the stretching of the spring, so that the rubber sealing ring is tightly attached to the inner wall of the cooling box under the action of elasticity.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model sets a cooling component, specifically, the water flow is first cooled in the refrigeration box, and then the water pump is started to transport the cooled water flow to the cooling box, and then the injection mold is placed in the cooling box for cooling. After the cooling is completed, the drain port on the right side of the cooling box is opened, and then the water flows into the refrigeration box through the drain pipe, and then the water flow is cooled again, and after cooling, the water flow is transported to the cooling box. This reciprocating process can make the injection mold always in a refrigerated state before cooling, thereby improving the cooling efficiency of the mold, reducing the cooling time, and making it easier to demold.

[0015] 2. The utility model sets a sealing seat. Specifically, when the water flow inside the cooling box is completely discharged, the hydraulic cylinder will move downward, driving the sealing seat to reset downward. When the rubber sealing ring contacts the inner wall of the cooling box, the extrusion seat will be pushed and the spring will be stretched. Then, the extrusion seat drives the rubber sealing ring to fit tightly against the inner wall of the cooling box under the action of elasticity, thereby improving the sealing effect and sealing the drain port to prevent water from overflowing.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the cooling box of the utility model;

[0020] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 This is a schematic diagram of the overall structure of the sealing seat of the utility model;

[0022] Figure 5 This is a schematic diagram of the left side structure of the extrusion seat of the utility model;

[0023] Figure 6 The figure is a schematic diagram of the overall structure of the utility model refrigeration box.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Base; 11. Support column; 111. Partition; 112. Refrigeration box; 21. Water inlet pipe; 22. Water outlet pipe; 113. Refrigeration machine; 31. Refrigeration pipe; 114. Water pump; 115. Delivery pipe; 12. Cooling assembly; 121. Cooling box; 211. Drain port; 122. Hydraulic cylinder; 221. Connecting block; 123. Drain pipe; 124. Sealing seat; 241. Extrusion seat; 242. Rubber sealing ring; 243. Limit rod; 244. Spring; 245. Fixed block; 246. Connecting seat; 247. Fixed rod; 125. Support block 1; 126. Support block 2. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-6 As shown, the utility model is a cooling device for a plastic injection mold, comprising a base 1, four corners of the top of the base 1 are fixedly connected to support columns 11, the outer surfaces of the four support columns 11 are fixedly connected to partitions 111, a cooling assembly 12 is arranged above the partitions 111, a refrigeration box 112 is fixedly connected to the top of the base 1, a refrigerator 113 is fixedly connected to the left side of the refrigeration box 112, and a water pump 114 is arranged on the back of the refrigerator 113;

[0028] The cooling assembly 12 includes a cooling box 121, a hydraulic cylinder 122 is arranged inside the cooling box 121, a drain port 211 is opened on the right side of the cooling box 121, a drain pipe 123 is fixedly connected to the right side of the cooling box 121, and a sealing seat 124 is arranged on the right side of the inner wall of the cooling box 121. By setting the cooling assembly 12, the water flow of the injection mold is always in a refrigerated state before cooling, thereby improving the cooling efficiency of the mold, reducing the cooling time, and making demoulding easier.

[0029] A water inlet pipe 21 is fixedly connected to the right side of the refrigeration box 112, a water outlet pipe 22 is fixedly connected to the left side of the refrigeration box 112, the left side of the water outlet pipe 22 is fixedly connected to the right output end of the water pump 114, the bottom of the water pump 114 is fixedly connected to the top of the base 1, a refrigeration pipe 31 is arranged inside the refrigeration box 112, one end of the refrigeration pipe 31 is fixedly connected to the refrigerator 113, and a delivery pipe 115 is fixedly connected to the left side of the water pump 114.

[0030] A storage groove is provided on the right side of the sealing seat 124, and an extrusion seat 241 is slidably connected to the inner wall of the storage groove. A rubber sealing ring 242 is fixedly connected to the right side of the extrusion seat 241, and a sliding groove is provided on the left side of the inner wall of the storage groove. A limit rod 243 is slidably connected to the inner wall of the sliding groove, and a spring 244 is sleeved on the outer side of the limit rod 243. After the sealing seat 124 is reset downward, the rubber sealing ring 242 contacts the inner wall of the cooling box 121, and the elastic action of the spring 244 makes the extrusion seat 241 drive the rubber sealing ring 242 to fit tightly against the inner wall of the cooling box 121, thereby improving the sealing effect, and the drain outlet 211 can be sealed to prevent water from overflowing.

[0031] The top and bottom output ends of the hydraulic cylinder 122 are fixedly connected to connecting blocks 221. The outer side of the upper connecting block 221 is rotatably connected to a support block 125 via a pin shaft. The outer side of the lower connecting block 221 is rotatably connected to a fixed block 245 via a pin shaft. The right side of the fixed block 245 is fixedly connected to the left side of the sealing seat 124. The right side of the support block 125 is fixedly connected to the right side of the inner wall of the cooling box 121. An opening is provided inside the partition 111, and an opening is provided inside the bottom of the drain pipe 123.

[0032] A connecting seat 246 is fixedly connected to the top of the sealing seat 124. A rotating hole is opened inside the connecting seat 246. A fixing rod 247 is rotatably connected to the inner wall of the rotating hole. The front and back sides of the fixing rod 247 are fixedly connected to the supporting block 126. The right side of the supporting block 126 is fixedly connected to the inner wall of the cooling box 121. The right side of the rubber sealing ring 242 contacts the inner wall of the cooling box 121. The top of the conveying pipe 115 is fixedly connected to the left side of the cooling box 121.

[0033] The right side of the limiting rod 243 is fixedly connected to the left side of the extrusion seat 241 , the left side of the spring 244 is fixedly connected to the outer surface of the limiting rod 243 , and the right side of the spring 244 is fixedly connected to the right side of the inner wall of the sliding groove.

[0034] A specific application of this embodiment is:

[0035] When in use, water is injected into the refrigeration box 112 through the water inlet pipe 21, and then the refrigerator 113 is started to cool the water through the refrigeration pipe 31. After the cooling is completed, the water pump 114 is started to extract the water in the refrigeration box 112 through the water outlet pipe 22, and then enters the cooling box 121 through the delivery pipe 115. At this time, the water in the cooling box 121 is in a cooling state. Then, the injection mold that needs to be cooled is placed in the cooling box 121. Since the water is refrigerated, the injection mold can be quickly cooled. After the cooling is completed, the injection mold is placed in the cooling box 121. The mold can be taken out, and then the hydraulic cylinder 122 is started to drive the fixed block 245 to move upward through the bottom connecting block 221, and the fixed block 245 drives the sealing seat 124 to move upward together. Since the lower connecting block 221 rotates on the fixed block 245, and the upper connecting block 221 rotates on the supporting block 125, it will not affect the work of the hydraulic cylinder 122. At the same time, the sealing seat 124 drives the connecting seat 246 to rotate on the fixing rod 247 during movement, so that the sealing seat 124 can realize the function of flipping, and the rubber seal The ring 242 leaves the inner wall of the cooling box 121, and the drain port 211 on the right side of the cooling box 121 opens. Then the water flows out through the drain pipe 123 and enters the cooling box 112 again. Then the water flows through the refrigerator 113 and the cooling pipe 31 to cool the water. This reciprocating process can keep the water in a cooled state before the injection mold is cooled, thereby improving the cooling efficiency of the mold, reducing the cooling time, and making it easier to demould. When the water flow inside the cooling box 121 is discharged, the hydraulic cylinder 122 moves downward, driving the sealing seat 12 4 is reset downward. When the rubber sealing ring 242 contacts the inner wall of the cooling box 121, the extrusion seat 241 will be pushed to slide in the sealing seat 124, and at the same time drive the limit rod 243 to move together, and stretch the spring 244. Then, the extrusion seat 241 drives the rubber sealing ring 242 to be in close contact with the inner wall of the cooling box 121 under the action of elasticity, thereby improving the sealing effect, and the drain port 211 can be sealed to prevent water from overflowing. Finally, after the sealing is completed, the cooling water in the refrigeration box 112 can be transported to the cooling box 121.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cooling device for a plastic injection mold, comprising a base (1), wherein four corners of the top of the base (1) are fixedly connected to support columns (11), the outer surfaces of the four support columns (11) are fixedly connected to partitions (111), and a cooling component (12) is arranged above the partition (111), characterized in that: A refrigeration box (112) is fixedly connected to the top of the base (1), a refrigerator (113) is fixedly connected to the left side of the refrigeration box (112), and a water pump (114) is arranged on the back of the refrigerator (113); The cooling assembly (12) comprises a cooling box (121), a hydraulic cylinder (122) is arranged inside the cooling box (121), a drainage port (211) is opened on the right side of the cooling box (121), a drainage pipe (123) is fixedly connected to the right side of the cooling box (121), and a sealing seat (124) is arranged on the right side of the inner wall of the cooling box (121).

2. A cooling device for a plastic injection mold according to claim 1, characterized in that: The right side of the refrigeration box (112) is fixedly connected to a water inlet pipe (21), the left side of the refrigeration box (112) is fixedly connected to a water outlet pipe (22), the left side of the water outlet pipe (22) is fixedly connected to the right output end of the water pump (114), the bottom of the water pump (114) is fixedly connected to the top of the base (1), a refrigeration pipe (31) is arranged inside the refrigeration box (112), one end of the refrigeration pipe (31) is fixedly connected to the refrigerator (113), and the left side of the water pump (114) is fixedly connected to a delivery pipe (115).

3. A cooling device for a plastic injection mold according to claim 2, characterized in that: A receiving groove is provided on the right side of the sealing seat (124), an extrusion seat (241) is slidably connected to the inner wall of the receiving groove, a rubber sealing ring (242) is fixedly connected to the right side of the extrusion seat (241), a sliding groove is provided on the left side of the inner wall of the receiving groove, a limiting rod (243) is slidably connected to the inner wall of the sliding groove, and a spring (244) is sleeved on the outer side of the limiting rod (243).

4. A cooling device for a plastic injection mold according to claim 3, characterized in that: The top and bottom output ends of the hydraulic cylinder (122) are both fixedly connected to a connecting block (221); the outer side of the upper connecting block (221) is rotatably connected to a supporting block (125) via a pin shaft; the outer side of the lower connecting block (221) is rotatably connected to a fixing block (245) via a pin shaft; the right side of the fixing block (245) is fixedly connected to the left side of the sealing seat (124).

5. A cooling device for a plastic injection mold according to claim 4, characterized in that: The top of the sealing seat (124) is fixedly connected to a connecting seat (246), a rotating hole is provided inside the connecting seat (246), a fixing rod (247) is rotatably connected to the inner wall of the rotating hole, and the front and back sides of the fixing rod (247) are fixedly connected to the supporting block 2 (126).

6. A cooling device for a plastic injection mold according to claim 5, characterized in that: The right side of the second support block (126) is fixedly connected to the inner wall of the cooling box (121), the right side of the rubber sealing ring (242) is in contact with the inner wall of the cooling box (121), and the top of the delivery pipe (115) is fixedly connected to the left side of the cooling box (121).

7. A cooling device for a plastic injection mold according to claim 5, characterized in that: The right side of the limiting rod (243) is fixedly connected to the left side of the extrusion seat (241), the left side of the spring (244) is fixedly connected to the outer surface of the limiting rod (243), and the right side of the spring (244) is fixedly connected to the right side of the inner wall of the sliding groove.

8. A cooling device for a plastic injection mold according to claim 4, characterized in that: The right side of the support block 1 (125) is fixedly connected to the right side of the inner wall of the cooling box (121), an opening is provided inside the partition (111), and an opening is provided inside the bottom of the drain pipe (123).

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