CN220482489U - Heat insulation water jacket for high-temperature injection mold - Google Patents
Heat insulation water jacket for high-temperature injection mold Download PDFInfo
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- CN220482489U CN220482489U CN202321890268.8U CN202321890268U CN220482489U CN 220482489 U CN220482489 U CN 220482489U CN 202321890268 U CN202321890268 U CN 202321890268U CN 220482489 U CN220482489 U CN 220482489U
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- insulating
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 238000002347 injection Methods 0.000 title claims abstract description 21
- 239000007924 injection Substances 0.000 title claims abstract description 21
- 238000009413 insulation Methods 0.000 title claims description 31
- 230000000670 limiting effect Effects 0.000 claims abstract description 34
- 238000001746 injection moulding Methods 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 abstract description 12
- 238000001816 cooling Methods 0.000 abstract description 10
- 239000000498 cooling water Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 6
- 230000007306 turnover Effects 0.000 abstract 1
- 230000002829 reductive effect Effects 0.000 description 7
- 238000004321 preservation Methods 0.000 description 5
- 239000002826 coolant Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of injection molds, in particular to a heat-insulating water jacket for a high-temperature injection mold. In the process of cooling the injection molding hot nozzle by the heat-insulating water jacket, the mounting groove and the protective pad are used for isolating low-temperature air nearby the heat-insulating water jacket, and the protective pad is used for insulating heat and preserving the temperature of the surface of the mold insert, so that high temperature on the mold insert is prevented from being conducted to the heat-insulating water jacket, and the heat conduction between the mold insert and the heat-insulating water jacket can be fully prevented. Inside business turn over hole and apopore on limiting plate top, demountable installation connecting pipe to communicate with external water source through the connecting pipe, the cooling water of being convenient for flows through the inside water cavity of insulating water cover, and relatively sealed leak protection water.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a heat-insulating water jacket for a high-temperature injection mold.
Background
The hot nozzle of its hot runner is located high temperature when injection mold pouring, in the product cooling process, runner department fuse-element will solidify slowly because of the high temperature, influences the runner and breaks the glue, leads to the product surface of runner department to appear hot melt adhesive trace easily, and the yield is low, and the cycle of moulding plastics is long.
The existing hot nozzle cooling modes of the hot runner are two types: one of them is to design a cooling water pipe near the hot nozzle, the waterway is generally straight-through, and the waterway is generally designed to be close to the head of the hot nozzle, so that the uniform cooling of the periphery of the hot nozzle can not be realized. The other is to design a cooling water jacket at the hot nozzle, a cooling channel is arranged around the periphery of the hot nozzle, the cooling channel is contacted with the outer ring of the water jacket and also contacted with a main body part (a die core) of the die, the temperature is conducted to the main body die core, and heat flow exchange and transmission are realized through water inlet and outlet circulation.
Therefore, the hot nozzle is usually cooled, so that a heat-insulating water jacket for a high-temperature injection mold is needed.
For example, the prior patent publication CN114434760a provides a heat-insulating water jacket for a high-temperature injection mold and an injection mold, and the device adopts air heat insulation because a heat-insulating cavity is reserved between the outer water jacket and the inner side wall of a hot runner hole, so that heat exchange between a mold core and a cooling medium can be greatly weakened, the heat-insulating water jacket can not influence the temperature rise of the mold core when cooling an injection molding hot nozzle, appearance defects on a molded product can be greatly reduced, and the molding quality of the product is improved.
However, the device is only suitable for greatly weakening heat exchange between the mold core and the cooling medium, so that the heat-insulating water jacket cannot influence the temperature rise of the mold core when the injection molding hot nozzle is cooled, and cannot fully insulate heat between the heat-insulating water jacket and the mold core.
The existing heat-insulating water jacket for the high-temperature injection mold is characterized in that cooling water in a water cavity inside the heat-insulating water jacket needs to enter and exit from the heat-insulating water jacket and take away heat on an injection molding hot nozzle, the cooling water in the water cavity of the heat-insulating water jacket is easy to leak in the process of entering and exiting from the water cavity, connection between an external water source and the heat-insulating water jacket is troublesome, the cooling water is inconvenient to detach and install, the cooling water flows through the heat-insulating water jacket, heat is insulated only through the heat-insulating cavity between the heat-insulating water jacket and a mold core, the heat on the mold core is easy to conduct to the heat-insulating water jacket after the temperature on the injection molding hot nozzle is reduced, the temperature of the mold core is easy to be reduced, and a protective heat-insulating structure is not arranged on the inner surface of the mold core.
Disclosure of Invention
The utility model aims to provide a heat-insulating water jacket for a high-temperature injection mold, which aims to solve the problems that heat insulation is not enough only through a heat-insulating cavity between the heat-insulating water jacket and a mold core, and after the temperature on an injection hot nozzle is reduced, heat on the mold core is easily conducted to the heat-insulating water jacket, so that the temperature of the mold core is easily reduced.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high temperature is thermal-insulated water jacket for injection mold, includes the mould benevolence, open the inside of mould benevolence has the mounting groove, the internally mounted of mounting groove has the hot mouth of moulding plastics, the inside of the hot mouth of moulding plastics is provided with the hot runner hole.
Preferably, a limiting plate is arranged at the top end of the inside of the mounting groove, a limiting hole is formed in the middle of the limiting plate, and the injection molding hot nozzle penetrates through the limiting hole.
Preferably, the bottom end of the limiting plate is fixed with a heat-insulating water jacket, a water cavity is arranged in the heat-insulating water jacket, a heat-conducting pad is adhered to the inner side of the heat-insulating water jacket, and the heat-conducting pad is wrapped on the outer surface of the injection molding hot nozzle.
Preferably, the surface of the limiting plate is provided with a water inlet hole and a water outlet hole, the water inlet hole and the water outlet hole are connected with the water cavity, and the inner top ends of the water inlet hole and the water outlet hole are connected with connecting pipes.
Preferably, a sealing gasket and a locknut are arranged on the surface of the connecting pipe, the sealing gasket is respectively pressed at the top ends of the water inlet hole and the water outlet hole, and the locknut is pressed at the top end of the sealing gasket.
Preferably, the outside of limiting plate is opened there is first connecting hole, open on the side top of mould benevolence has the second connecting hole, the inside in second connecting hole is passed there is the spacing bolt, the top of spacing bolt inserts first connecting hole.
Preferably, the inner surface of the installation groove is adhered with a protective pad, and the protective pad comprises a heat insulation pad, a heat preservation pad and a waterproof pad.
Preferably, a positioning hole is formed in the middle of the bottom end of the die core, the positioning hole is communicated with the bottom end of the mounting groove, the injection molding hot nozzle is inserted into the positioning hole, and a heat insulation rubber sleeve is adhered to the inner surface of the positioning hole.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model is arranged in the mounting groove of the mold core through the injection molding hot nozzle, the heat insulation water jacket is arranged at the outer side of the injection molding hot nozzle, the protective pad is adhered to the inner surface of the mold core and comprises the heat insulation pad, the heat insulation pad and the waterproof pad, the mounting groove is arranged between the protective pad and the heat insulation water jacket at intervals, thus, in the process of cooling the injection molding hot nozzle through the heat insulation water jacket, the mounting groove and the protective pad are used for isolating low-temperature air nearby the heat insulation water jacket, and the protective pad is used for insulating heat at the surface of the mold core, so that high temperature on the interception mold core is prevented from being conducted to the heat insulation water jacket, and the interception temperature conduction can be sufficiently prevented between the mold core and the heat insulation water jacket.
2. The limiting plate is detachably connected with the die core through the limiting bolt, the connecting pipe is detachably arranged in the water inlet and outlet hole and the water outlet hole at the top end of the limiting plate, and the sealing gasket and the locknut are arranged on the surface of the connecting pipe, so that the water cavity is communicated with the water inlet and outlet hole and the water outlet hole and is communicated with an external water source through the connecting pipe, cooling water conveniently flows through the water cavity in the heat insulation water jacket, and the water cavity is sealed and water leakage-proof.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an enlarged view of the utility model at A of FIG. 1;
FIG. 3 is an enlarged view of the utility model at B of FIG. 1;
FIG. 4 is a partial cross-sectional view of the stop plate of FIG. 1 in accordance with the present utility model;
fig. 5 is a schematic view of a portion of the protection pad of fig. 1 according to the present utility model.
In the figure: 1. a mold core; 2. a protective pad; 3. a mounting groove; 4. a heat-insulating water jacket; 5. a water chamber; 6. a water inlet hole; 7. a limit bolt; 8. a connecting pipe; 9. a limiting plate; 10. injection molding a hot nozzle; 11. a thermal pad; 12. a hot runner hole; 13. a limiting hole; 14. a sealing gasket; 15. a locknut; 16. a first connection hole; 17. a second connection hole; 18. a water outlet hole; 19. a heat-insulating rubber sleeve; 20. positioning holes; 21. a waterproof pad; 22. a thermal insulation pad; 23. and a heat insulation pad.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1, 2, 3, 4 and 5, a heat-insulating water jacket for a high-temperature injection mold in the drawings comprises a mold core 1, wherein the mold core 1 has a rectangular structure, a mounting groove 3 is formed in the mold core 1, the mounting groove 3 has a conical groove structure, an injection molding hot nozzle 10 is mounted in the mounting groove 3, and a hot runner hole 12 is formed in the injection molding hot nozzle 10.
The top end of the inside of the mounting groove 3 is provided with a limiting plate 9, the limiting plate 9 is of a circular plate structure and is horizontally arranged, and the top end of the limiting plate 9 is level with the top end of the die core 1; the middle of the limiting plate 9 is provided with a limiting hole 13, the limiting hole 13 is of a circular hole structure, and the injection molding hot nozzle 10 penetrates through the limiting hole 13.
The bottom end of the limiting plate 9 is fixed with a heat insulation water jacket 4, and the heat insulation water jacket 4 surrounds the outer side of the injection molding hot nozzle 10 and is used for cooling the injection molding hot nozzle 10; a water cavity 5 is arranged in the heat-insulating water jacket 4 and is used for flowing cooling water; the heat conduction pad 11 is adhered to the inner side of the heat insulation water jacket 4, the heat conduction pad 11 is made of heat conduction silica gel, the heat conduction pad 11 is wrapped on the outer surface of the injection molding hot nozzle 10, heat on the surface of the injection molding hot nozzle 10 can be conducted outwards, and collision vibration and abrasion between the heat insulation water jacket 4 and the injection molding hot nozzle 10 can be reduced.
The surface of the limiting plate 9 is provided with a water inlet 6 and a water outlet 18 which are respectively positioned at two sides of the injection molding hot nozzle 10 and are used for communicating with an external water source; the water inlet hole 6 and the water outlet hole 18 are communicated with the water cavity 5, and connecting pipes 8 are connected to the inner top ends of the water inlet hole 6 and the water outlet hole 18.
The inner surfaces of the water inlet hole 6 and the water outlet hole 18 are of a thread surface structure, and the outer surface of the connecting pipe 8 is of a thread surface structure, so that the connecting pipe 8 is detachably matched and connected with the water inlet hole 6 and the water outlet hole 18 respectively.
The surface of the connecting pipe 8 is provided with a sealing gasket 14 and a locknut 15, the sealing gasket 14 is respectively pressed on the top ends of the water inlet hole 6 and the water outlet hole 18, and is used for sealing the joint of the water inlet hole 6 and the water outlet hole 18 to prevent water leakage; the locknut 15 is pressed on the top end of the sealing gasket 14, and the connecting pipe 8 is kept to be firmly and stably connected.
The outside of limiting plate 9 is opened there is first connecting hole 16, and open the side top of mould benevolence 1 has second connecting hole 17, and second connecting hole 17 aligns with first connecting hole 16, and second connecting hole 17 is the screw hole structure, and the inside of second connecting hole 17 is passed there is spacing bolt 7, and spacing bolt 7 level sets up to be connected with second connecting hole 17 screw thread fit, with first connecting hole 16 location installation connection, and the spacing installation of limiting plate 9 is inside the mounting groove 3 of mould benevolence 1, the top slip of spacing bolt 7 inserts first connecting hole 16.
The inner surface of the mounting groove 3 is adhered with a protective pad 2, and the protective pad 2 and the heat insulation water jacket 4 are separated by the mounting groove 3; the protection pad 2 comprises a heat insulation pad 23, a heat preservation pad 22 and a waterproof pad 21, wherein the heat insulation pad 23 is made of heat-resistant ceramic materials, and is used for insulating the die core 1, so that heat of the die core 1 is prevented from being conducted into the installation groove 3.
The heat preservation belt 22 is made of heat preservation cotton, and is used for preserving heat of the die core 1, so that the heat dissipation speed of the die core 1 is reduced.
A positioning hole 20 is formed in the middle of the bottom end of the die core 1, the positioning hole 20 is communicated with the bottom end of the mounting groove 3, and the injection molding hot nozzle 10 is inserted into the positioning hole 20 in a sliding manner, so that the injection molding hot nozzle 10 is positioned stably; the inner surface of the positioning hole 20 is stuck with a heat-insulating rubber sleeve 19, and the heat-insulating rubber sleeve 19 is used for spacing the injection molding hot nozzle 10 from the mold core 1, so that the injection molding hot nozzle 10 is prevented from being damaged by collision.
This high temperature injection mold is with thermal-insulated water jacket, when using: the heat-insulating water jacket 4 is arranged outside the injection molding hot nozzle 10 and is arranged inside the mounting groove 3 of the die core 1 through the injection molding hot nozzle 10.
And, paste the protection pad 2 on the internal surface of mould benevolence 1, and protection pad 2 includes thermal insulation pad 23, heat preservation pad 22 and waterproof pad 21, and the installation groove 3 is kept apart to protection pad 2 and thermal insulation water jacket 4.
In this way, in the process of cooling the injection molding hot nozzle 10 by the heat insulation water jacket 4, the mounting groove 3 and the protection pad 2 are used for isolating low-temperature air nearby the heat insulation water jacket 4, and the protection pad 2 is used for preserving heat and insulating heat to the surface temperature of the mold insert 1, so that high temperature on the mold insert 1 is prevented from being conducted to the heat insulation water jacket 4, and the heat insulation water jacket 4 and the mold insert 1 can be fully prevented from being conducted.
The limiting plate 9 is detachably connected with the die core 1 through the limiting bolt 7, the connecting pipe 8 is detachably installed in the inlet and outlet holes 6 and the water outlet holes 18 at the top end of the limiting plate 9, and the sealing gasket 14 and the locknut 15 are arranged on the surface of the connecting pipe 8.
In this way, the water cavity 5 is communicated with the inlet and outlet holes 6 and 18 and is communicated with an external water source through the connecting pipe 8, so that cooling water can conveniently flow into the water cavity 5 inside the heat-insulating water jacket 4, and water leakage is prevented by sealing.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a thermal-insulated water jacket for high temperature injection mold which characterized in that includes: the mold core (1), the inside of mold core (1) is opened there is mounting groove (3), the internally mounted of mounting groove (3) has hot mouth (10) of moulding plastics, the inside of hot mouth (10) of moulding plastics is provided with hot runner hole (12), limiting plate (9) are installed on the inside top of mounting groove (3), open in the middle of limiting plate (9) has spacing hole (13), hot mouth (10) of moulding plastics pass spacing hole (13), the bottom mounting of limiting plate (9) has thermal-insulated water jacket (4), the inside of thermal-insulated water jacket (4) is provided with water cavity (5), thermal-insulated water jacket (4) inboard paste has heat conduction pad (11), heat conduction pad (11) parcel is in the surface of hot mouth (10) of moulding plastics, the internal surface paste of mounting groove (3) has protection pad (2), protection pad (2) include thermal-insulated pad (23), thermal-insulated pad (22) and waterproof pad (21).
2. The heat-insulating water jacket for a high-temperature injection mold according to claim 1, wherein: the surface of limiting plate (9) is opened there is inlet opening (6) and apopore (18), inlet opening (6) with apopore (18) all with water cavity (5) are connected, inlet opening (6) with inside top of apopore (18) all is connected with connecting pipe (8).
3. The heat insulating water jacket for a high-temperature injection mold according to claim 2, characterized in that: the surface of the connecting pipe (8) is provided with a sealing gasket (14) and a locknut (15), the sealing gasket (14) is respectively pressed at the top ends of the water inlet hole (6) and the water outlet hole (18), and the locknut (15) is pressed at the top end of the sealing gasket (14).
4. The heat-insulating water jacket for a high-temperature injection mold according to claim 3, wherein: the outer side of the limiting plate (9) is provided with a first connecting hole (16), the top end of the side face of the die core (1) is provided with a second connecting hole (17), the inside of the second connecting hole (17) is penetrated with a limiting bolt (7), and the top end of the limiting bolt (7) is inserted into the first connecting hole (16).
5. The heat-insulating water jacket for a high-temperature injection mold according to claim 1, wherein: the mold is characterized in that a positioning hole (20) is formed in the middle of the bottom end of the mold core (1), the positioning hole (20) is communicated with the bottom end of the mounting groove (3), the injection molding hot nozzle (10) is inserted into the positioning hole (20), and a heat insulation rubber sleeve (19) is adhered to the inner surface of the positioning hole (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321890268.8U CN220482489U (en) | 2023-07-18 | 2023-07-18 | Heat insulation water jacket for high-temperature injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321890268.8U CN220482489U (en) | 2023-07-18 | 2023-07-18 | Heat insulation water jacket for high-temperature injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220482489U true CN220482489U (en) | 2024-02-13 |
Family
ID=89838011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321890268.8U Active CN220482489U (en) | 2023-07-18 | 2023-07-18 | Heat insulation water jacket for high-temperature injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220482489U (en) |
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2023
- 2023-07-18 CN CN202321890268.8U patent/CN220482489U/en active Active
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