CN222407013U - Cold runner injection mold - Google Patents
Cold runner injection mold Download PDFInfo
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- CN222407013U CN222407013U CN202421219514.1U CN202421219514U CN222407013U CN 222407013 U CN222407013 U CN 222407013U CN 202421219514 U CN202421219514 U CN 202421219514U CN 222407013 U CN222407013 U CN 222407013U
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Abstract
The utility model relates to a cold runner injection mold which comprises a cooling groove cylinder, a first mold and a second mold, wherein the cooling groove cylinder comprises a liquid storage cylinder, a sealing plate is fixedly arranged at a cylinder opening of the liquid storage cylinder, an extension pipe is arranged on the outer wall of the liquid storage cylinder, one end of the extension pipe penetrates through the sealing plate, and the first mold comprises an outer frame. The utility model relates to the technical field of injection molds. This cold runner injection mold inserts the inside of first mould with cooling tank section of thick bamboo to pour in advance the coolant liquid in the inside of cooling tank section of thick bamboo, when first mould and second mould closure formed confined die cavity, extrude between first mould and the cooling tank section of thick bamboo, make the inside coolant liquid of cooling tank section of thick bamboo flow to the inside of two moulds, reach the effect of cooling down each position of mould with the coolant liquid is synchronous when cooling down in order to improve the mould.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a cold runner injection mold.
Background
The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. Specifically, the heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification.
Chinese patent publication No. CN216578990U discloses a general injection mold with cold runner, which comprises a bottom plate and support columns fixed at four corners of the top of the bottom plate, a top plate is fixed between the top ends of the four support columns, an injection upper mold is fixed at the bottom of the top plate through an electric telescopic rod, an injection lower mold is fixed at the top of the bottom plate, injection cavities are formed at the bottom of the injection upper mold and the top of the injection lower mold, and an injection pipe penetrating above the top plate is communicated with the top of the injection upper mold;
In the above-mentioned patent, through the setting of hydrologic cycle heat conduction mechanism, be convenient for take away the heat on the lower mould of moulding plastics by the mode that rivers flow, and then can accelerate the cooling efficiency of product, and then accelerate production efficiency.
But can constantly absorb heat in the water flow process, so that the water at two ends of the guide pipe has a large temperature difference, and the problem of uneven cooling easily occurs in a cooling mode through water flow, and further the problem of product deformation easily occurs in demolding.
Disclosure of utility model
According to the shortcomings of the prior art, the utility model aims to provide a cold runner injection mold so as to solve the technical problems in the background art.
The technical aim of the utility model is realized by the following technical scheme:
A cold runner injection mold comprises a cooling groove drum, a first mold and a second mold;
The cooling tank cylinder comprises a liquid storage cylinder, a sealing plate is fixedly arranged at a cylinder opening of the liquid storage cylinder, an extension pipe is arranged on the outer wall of the liquid storage cylinder, and one end of the extension pipe penetrates through the sealing plate;
The first die comprises an outer frame, a first die frame is arranged in the outer frame, and a plurality of flow guide pipes are arranged on the outer frame wall of the first die frame;
The second die comprises a connecting shell, a second die frame is arranged in the connecting shell, a plurality of positioning pipes are arranged on the outer frame wall of the second die frame, a pressure plate is arranged in the connecting shell, and the pressure plate is sleeved on the outer surface of the second die frame.
Further, the first mold frame is inserted into the liquid storage barrel, the outer surface of the first mold frame is attached to the inner wall of the liquid storage barrel, and the position of the flow guide pipe corresponds to the position of the extension pipe penetrating through the sealing plate.
Further, the pressure plate with second mould frame sliding connection, just four convenient departments in one side of pressure plate be provided with the pressure spring who connects the shell and be connected, the pressure plate keep away from one side of pressure spring is provided with the plug tube that inserts inside the locating tube.
Further, the sealing plate is inserted at a position between the first mold frame and the outer frame.
Further, one end of the honeycomb duct is provided with a high-pressure connector, the inside of the positioning tube is slidably provided with a low-pressure connector, and the high-pressure connector and the low-pressure connector can be connected with each other to form a hydraulic quick connector.
Further, the top of outer frame is provided with the mount, the top of connection shell is provided with the carriage, one side of mount is fixed to be provided with the sliding plate of inserting the carriage.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. According to the cold runner injection mold, the cooling groove cylinder is inserted into the first mold, cooling liquid is poured into the cooling groove cylinder in advance, when the first mold and the second mold are closed to form a closed mold cavity, the first mold and the cooling groove cylinder are extruded, so that the cooling liquid in the cooling groove cylinder flows into the two molds, and the effect of synchronously cooling all parts of the molds by the cooling liquid is achieved, so that the uniformity of the molds in cooling is improved;
2. This cold runner injection mold, through the setting of pressure spring, when the coolant liquid receives the extrusion and gets into the position between second mould frame and the connection shell through the registration arm, can promote the pressure board, and extrude pressure spring, be used for when first mould and second mould mutually separate, through compressed pressure spring, reset the pressure board, promote the coolant liquid backward flow, make the coolant liquid by the inside effect of pushing to the cooling tank section of thick bamboo, and because the cooling tank section of thick bamboo exposes in the outside, consequently, can be quick with the heat dissipation of coolant liquid in the air, reach reuse coolant liquid's effect, and can effectually avoid the coolant liquid to stop at first mould and the inside problem that causes the mould body temperature to rise of second mould.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a cold runner injection mold of the present utility model.
Fig. 2 is a schematic structural view of a cooling tank of a cold runner injection mold according to the present utility model.
Fig. 3 is a schematic structural view of a first mold of a cold runner injection mold according to the present utility model.
Fig. 4 is a schematic structural view of a second mold of the cold runner injection mold of the present utility model.
Fig. 5 is a schematic diagram of a cooling liquid moving track of a cold runner injection mold according to the present utility model.
In the figure, 1, a cooling tank cylinder, 11, a liquid storage cylinder, 12, a sealing plate, 13, an extension pipe, 2, a first mold, 21, an outer frame, 22, a first mold frame, 23, a flow guide pipe, 24, a high-pressure joint, 25, a low-pressure joint, 3, a second mold, 31, a second mold frame, 32, a positioning pipe, 33, a pressure plate, 34, a pressure spring, 35, a blocking pipe, 36, a connecting shell, 4, a fixing frame, 5, a sliding frame, 6 and a sliding plate.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Examples:
Referring to fig. 1-5, the cold runner injection mold disclosed by the utility model comprises a cooling groove drum 1, a first mold 2 and a second mold 3;
the cooling tank 1 comprises a liquid storage barrel 11, a sealing plate 12 is fixedly arranged at the barrel opening of the liquid storage barrel 11, an extension pipe 13 is arranged on the outer wall of the liquid storage barrel 11, and one end of the extension pipe 13 penetrates through the sealing plate 12;
the first die 2 comprises an outer frame 21, a first die 2 frame is arranged in the outer frame 21, the first die 2 frame is arranged in the outer frame, and a plurality of guide pipes 23 are arranged on the outer frame wall of the first die 2 frame;
The second die 3 comprises a connecting shell 36, a second die 3 frame is arranged in the connecting shell 36, a plurality of positioning pipes 32 are arranged on the outer frame wall of the second die 3 frame, a pressure plate 33 is arranged in the connecting shell 36, and the pressure plate 33 is sleeved on the outer surface of the second die 3 frame.
In this embodiment, as shown in the drawing, the bottom ends of the first mold 2 and the second mold 3 are provided with guide plates, one ends of the guide plates are fixedly connected with the cooling tank cylinder 1, and the first mold 2 and the second mold 3 are slidably connected with the guide plates, when in use, as shown in fig. 5, the cooling tank cylinder 1 is inserted into the first mold 2, and cooling liquid is poured into the cooling tank cylinder 1 in advance, when the first mold 2 and the second mold 3 are closed to form a closed mold cavity, the first mold 2 and the cooling tank cylinder 1 are squeezed, so that the cooling liquid in the cooling tank cylinder 1 flows into the two molds, and the effect of synchronously cooling all parts of the molds by the cooling liquid to improve the uniformity of the molds during cooling is achieved, and F in fig. 5 is the flow track of the cooling liquid;
Specifically, the first mold 2 and the cooling tank 1 are connected to each other, the sealing plate 12 is inserted to a position between the outer frame 21 and the first mold 2 frame, so that a sealed cavity is formed between the frame wall of the first mold 2 frame and the cylinder wall of the liquid storage cylinder 11, the outside is mutually communicated with the sealed cavity through the arrangement of the extension pipe 13 and the flow guide pipe 23, when the second mold 3 and the first mold 2 are pushed to be mutually closed, the flow guide pipe 23 is inserted into the positioning pipe 32, when the first mold 2 and the second mold 3 are mutually tightly attached, the first mold 2 is pushed by the second mold 3, the cooling liquid in the liquid storage cylinder 11 is extruded, the cooling liquid is discharged to the inside of the flow guide pipe 23 along the extending pipe, and because the flow guide pipe 23 is inserted into the positioning pipe 32, the cooling liquid enters the inside of the second mold 3 and is stored in the inside of the second mold 3, and the pressure plate 33 is pushed to move, the cooling liquid is filled in the inside of the first mold 2 and the second mold 3, and then the cooling liquid can be quickly filled in the first mold 2 and the second mold 3 when the material is injected, the cooling liquid is filled into the cooling liquid, and the cooling liquid can be quickly filled in the cooling liquid of the first mold 3, and the cooling liquid can be solidified, and the cooling efficiency can be improved.
In a further preferred embodiment of the present utility model, as shown in fig. 1-5, the first mold 2 frame is inserted into the liquid storage barrel 11, and the outer surface of the first mold 2 frame is attached to the inner wall of the liquid storage barrel 11, and the position of the flow guiding pipe 23 corresponds to the position where the extension pipe 13 passes through the sealing plate 12.
In this embodiment, since the outer surface of the frame of the first mold 2 is attached to the inner wall of the liquid storage barrel 11, the oil inside the liquid storage barrel 11 can be discharged only through the extension pipe 13 after being extruded, so as to avoid the problem of liquid leakage.
In a further preferred embodiment of the present utility model, as shown in fig. 1 to 5, the pressure plate 33 is slidably connected to the frame of the second mold 3, and four convenient places on one side of the pressure plate 33 are provided with pressure springs 34 connected to the connection housing 36, and a blocking tube 35 inserted into the positioning tube 32 is provided on the side of the pressure plate 33 away from the pressure springs 34.
In this embodiment, by the arrangement of the pressure spring 34, when the cooling liquid is pressed through the positioning tube 32 into a position between the frame of the second mold 3 and the connection housing 36, the pressure plate 33 is pushed, and the pressure spring 34 is pressed, so that when the first mold 2 and the second mold 3 are separated from each other, the pressure plate 33 is reset by the compressed pressure spring 34, the cooling liquid is pushed back, and the cooling liquid is pushed into the cooling tank 1.
In a further preferred embodiment of the utility model, as shown in fig. 1-5, the sealing plate 12 is inserted in a position between the frame of the first mould 2 and the outer frame 21.
In this embodiment, the sealing plate 12 is inserted between the outer frame 21 and the frame of the first mold 2, so that the frame wall of the frame of the first mold 2 and the wall of the liquid storage tube 11 form a closed cavity.
In a further preferred embodiment of the present utility model, as shown in fig. 1-5, a high pressure joint 24 is disposed at one end of the guiding pipe 23, a low pressure joint 25 is slidably disposed inside the positioning pipe 32, and the high pressure joint 24 and the low pressure joint 25 can be connected to each other to form a hydraulic quick joint.
In this embodiment, by arranging the high-pressure connector 24 and the low-pressure connector 25, after the guide pipe 23 is inserted into the positioning pipe 32, the high-pressure connector 24 and the low-pressure connector 25 can be connected with each other rapidly to form a passage, so as to avoid the outflow problem of the cooling liquid.
In a further preferred embodiment of the present utility model, as shown in fig. 1 to 5, the top end of the outer frame 21 is provided with a fixing frame 4, the top end of the connection housing 36 is provided with a sliding frame 5, and one side of the fixing frame 4 is fixedly provided with a sliding plate 6 inserted into the sliding frame 5.
In this embodiment, the fixing frame 4 is used for installing the sliding plate 6, and the sliding plate 6 and the sliding frame 5 are arranged for guiding the outer frame 21, so that the stability of the die is improved.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not limited in scope by the present utility model, so that all equivalent changes according to the structure, shape and principle of the present utility model are covered by the scope of the present utility model.
Claims (6)
1. The cold runner injection mold is characterized by comprising a cooling groove drum (1), a first mold (2) and a second mold (3);
The cooling tank cylinder (1) comprises a liquid storage cylinder (11), a sealing plate (12) is fixedly arranged at a cylinder opening of the liquid storage cylinder (11), an extension pipe (13) is arranged on the outer wall of the liquid storage cylinder (11), and one end of the extension pipe (13) penetrates through the sealing plate (12);
The first die (2) comprises an outer frame (21), a first die frame (22) is arranged in the outer frame (21), the first die frame (22) is arranged, and a plurality of guide pipes (23) are arranged on the outer frame wall of the first die frame (22);
The second die (3) comprises a connecting shell (36), a second die (3) frame is arranged in the connecting shell (36), a plurality of positioning pipes (32) are arranged on the outer frame wall of the second die (3) frame, a pressure plate (33) is arranged in the connecting shell (36), and the pressure plate (33) is sleeved on the outer surface of the second die (3) frame.
2. Cold runner injection mold according to claim 1, characterized in that the first mold frame (22) is inserted into the interior of the liquid storage cylinder (11), and the outer surface of the first mold frame (22) is attached to the inner wall of the liquid storage cylinder (11), and the position of the flow guide pipe (23) corresponds to the position of the extension pipe (13) passing through the sealing plate (12).
3. Cold runner injection mold according to claim 2, characterized in that the pressure plate (33) is slidingly connected to the frame of the second mold (3), and that four convenient places on one side of the pressure plate (33) are provided with pressure springs (34) connected to the connecting housing (36), and that the side of the pressure plate (33) remote from the pressure springs (34) is provided with a stopper tube (35) inserted inside the positioning tube (32).
4. A cold runner injection mold according to claim 3, characterized in that the sealing plate (12) is inserted in a position between the first mold frame (22) and the outer frame (21).
5. Cold runner injection mould according to claim 4, characterized in that one end of the guide tube (23) is provided with a high pressure joint (24), the inside of the positioning tube (32) is slidably provided with a low pressure joint (25), and the high pressure joint (24) and the low pressure joint (25) can be connected to each other to form a hydraulic quick joint.
6. Cold runner injection mould according to claim 5, characterized in that the top end of the outer frame (21) is provided with a fixing frame (4), the top end of the connecting housing (36) is provided with a sliding frame (5), and one side of the fixing frame (4) is fixedly provided with a sliding plate (6) inserted into the sliding frame (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421219514.1U CN222407013U (en) | 2024-05-30 | 2024-05-30 | Cold runner injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421219514.1U CN222407013U (en) | 2024-05-30 | 2024-05-30 | Cold runner injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222407013U true CN222407013U (en) | 2025-01-28 |
Family
ID=94350722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421219514.1U Active CN222407013U (en) | 2024-05-30 | 2024-05-30 | Cold runner injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222407013U (en) |
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2024
- 2024-05-30 CN CN202421219514.1U patent/CN222407013U/en active Active
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