CN209738199U - Hot runner injection moulding's heat-conduction structure - Google Patents
Hot runner injection moulding's heat-conduction structure Download PDFInfo
- Publication number
- CN209738199U CN209738199U CN201920201729.3U CN201920201729U CN209738199U CN 209738199 U CN209738199 U CN 209738199U CN 201920201729 U CN201920201729 U CN 201920201729U CN 209738199 U CN209738199 U CN 209738199U
- Authority
- CN
- China
- Prior art keywords
- feeding
- flow channel
- heating material
- feeding nozzle
- transition flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A heat conduction structure for hot runner injection molding comprises a hot material channel body, a feeding nozzle, an elastic heat insulation sleeve and a cavity body; the heating material channel body is arranged in the cavity body, a main transition flow channel and a branch transition flow channel are arranged on the heating material channel body, a feeding nozzle corresponding to the branch transition flow channel is arranged on the side surface of the heating material channel body, the tail end surface of the tail part of the feeding nozzle is tightly attached to the side surface of the heating material channel body to form a heat conduction plane, and plane heat conduction is carried out; the head and the middle part of feed nozzle stretch into the die cavity body internally, the middle part of feed nozzle is cylindricly and the elastic heat insulating sleeve of overcoat, be equipped with the mounting groove that corresponds with the elastic heat insulating sleeve on the die cavity body, when the feed nozzle produced radial direction and axial direction's thermal expansion deformation, the elastic heat insulating sleeve can produce elastic deformation and eliminate radial and axial thermal expansion clearance, guarantee the cooperation precision of feed nozzle department, ensure that the feeding is accurate not have and leak, the reliability of mould has been improved, the quality of injection moulding product has been guaranteed.
Description
Technical Field
The utility model relates to a hot runner mold technical field, in particular to hot runner injection moulding's heat conduction structure.
Background
At present hot runner mold can produce the thermal energy because of material, mould temperature in process of production, especially the back of feeding mouth thermal expansion deformation, and the department of correspondence of feeding mouth can produce radial clearance and axial clearance, influences the cooperation precision, and the material mouth discharge gate of feeding mouth can squint, influences the feeding accuracy, and the material can leak, and what ever more can cause injection moulding product nonconforming, mould to damage.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a hot runner injection moulding's heat conduction structure.
the purpose of the utility model can be realized by the following technical scheme: a heat conduction structure for hot runner injection molding comprises a hot material channel body, a feeding nozzle, an elastic heat insulation sleeve and a cavity body; the heating material channel body is arranged in the cavity body, the heating material channel body is cylindrical, a main transition flow channel and more than one sub-transition flow channel which are communicated are arranged on the heating material channel body, the main transition flow channel is arranged along the central axis of the heating material channel body, and the sub-transition flow channels are arranged along the radial direction of the heating material channel body; the side surface of the heating material channel body is provided with more than one feeding nozzle, the feeding nozzles and the branch transition flow channels are arranged in a one-to-one correspondence mode, the tail part of each feeding nozzle is in a disc shape, the tail end surface of the tail part of each feeding nozzle is tightly attached to the side surface of the heating material channel body, the head part and the middle part of each feeding nozzle extend into the cavity body, the middle part of each feeding nozzle is cylindrical, an elastic heat insulation sleeve is sleeved outside each feeding nozzle, the inner side surface of each elastic heat insulation sleeve is matched with the side surface of the middle part of each feeding nozzle, and the tail end surface of each elastic heat; the die cavity body is provided with more than one mounting groove, the elastic heat insulation sleeves in the middle of the mounting groove and the feeding nozzle are arranged in a one-to-one correspondence mode, the groove wall of the mounting groove is matched with the outer side face of the elastic heat insulation sleeve, and the groove bottom face of the mounting groove is matched with the head end face of the elastic heat insulation sleeve.
Furthermore, one end of the main transition flow channel is communicated with one end face of the heating material channel body, one end of the branch transition flow channel is communicated with the other end of the main transition flow channel, and the other end of the branch transition flow channel is communicated with the side face of the heating material channel body.
Furthermore, more than two branch transition flow passages are uniformly distributed along the circumferential direction of the heating material passage body.
And furthermore, the heating material channel body is in a regular prism shape, and the sub-transition flow channels and the side surfaces of the heating material channel body are the same in number and are arranged in one-to-one correspondence.
Furthermore, the central axis of the feeding nozzle and the central axis of the corresponding branch transition flow channel are coaxially arranged, the head of the feeding nozzle is in a conical tip shape, the flow channel of the feeding nozzle is communicated to the head from the tail of the feeding nozzle, the tail of the flow channel of the feeding nozzle is communicated with the corresponding branch transition flow channel, and the head port of the flow channel of the feeding nozzle is a discharge port of the material nozzle.
Furthermore, the head of the flow channel of the feeding nozzle is arranged off-axis; the die cavity body is provided with more than one storage bin, the storage bins and the heads of the feeding nozzles are arranged in a one-to-one correspondence mode, the storage bins are communicated with the discharging ports of the feeding nozzles corresponding to the storage bins, the storage bins are provided with feeding ports communicated with the product forming cavity of the die cavity body, the feeding ports correspond to the conical tips of the heads of the feeding nozzles, and feeding gaps are arranged between the feeding ports and the conical tips.
Further, the elastic heat insulation sleeve is made of non-metal materials. Or the elastic heat insulation sleeve comprises a metal framework and an elastic body, the metal framework is in a ring sleeve shape, and the elastic body is wrapped outside the metal framework. Or, the elastic heat insulation sleeve comprises an elastic body and two metal frameworks, the elastic body is in a ring sleeve shape, two end faces of the elastic body are respectively concentrically provided with an annular groove, and an annular and matched metal framework is arranged in the annular groove. Or, the elastic heat insulation sleeve comprises a metal sleeve and an elastic body sleeve, and the elastic body sleeve is sleeved on the outer periphery side of the metal sleeve.
Compared with the prior art, the beneficial effects of the utility model are that: the side surface of the heating material channel body is tightly attached to the tail end surface of the tail part of the feeding nozzle to form a heat conduction plane for carrying out plane heat conduction; when the feeding nozzle generates high temperature passively and generates thermal expansion deformation in the radial direction and the axial direction, the elastic heat insulation sleeve can generate elastic deformation to eliminate the radial and axial thermal expansion gaps, so that the matching precision of the feeding nozzle is ensured, the feeding is ensured to be accurate and leak-free, the reliability of the mold is improved, and the quality of injection molding products is ensured.
drawings
Fig. 1 is a cross-sectional view of an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a top view of the cavity body according to an embodiment of the present invention.
Fig. 4 to 7 are schematic structural views of different elastic heat insulating sleeves according to the present invention.
The parts in the figures are numbered as follows:
1 heating the material channel body
101 main transition flow passage
102-branch transition flow passage
2 feeding mouth
201 tail end surface of tail part of feeding nozzle
3 elastic heat insulation sleeve
301 inner side of elastic heat insulation sleeve
302 tail end surface of elastic heat insulation sleeve
303 outside surface of elastic heat insulation sleeve
304 head end face of elastic heat insulation sleeve
305 metal skeleton
306 elastomer
307 metal jacket
308 elastic body sleeve
4 die cavity body
401 storage bin
402 feed inlet
And 5, forming a product.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.
Referring to fig. 1 and 2, a heat conduction structure for hot runner injection molding includes a heating channel body 1, a feeding nozzle 2, an elastic heat insulation sleeve 3 and a cavity body 4.
The heating material channel body 1 is arranged in the cavity body 4, the heating material channel body 1 is used for distributing materials entering a melting state of a hot nozzle main channel to each feeding nozzle 2, the heating material channel body 1 is in a regular prism shape, a main transition flow channel 101 and more than one branch transition flow channel 102 are arranged on the heating material channel body 1, the main transition flow channel 101 is used for being connected with the hot nozzle main channel, the main transition flow channel 101 is arranged along the central axis of the heating material channel body 1, one end of the main transition flow channel 101 is communicated to one end face of the heating material channel body 1, the branch transition flow channel 102 is used for being connected with a flow channel of the feeding nozzle 2, the branch transition flow channel 102 is arranged along the radial direction of the heating material channel body 1, one end of the branch transition flow channel 102 is communicated with the other end of the main transition flow channel 101, and the other end of the branch transition flow channel 102 is communicated to the side. Wherein, more than two branch transition runners 102 can be arranged along the circumferential direction of the heating material runner body 1, and further, the branch transition runners 102 are the same in number with the side surfaces of the heating material runner body 1 and are arranged in a one-to-one correspondence manner.
The side that adds heat material and say body 1 is equipped with more than one feeding mouth 2, feeding mouth 2 with divide transition runner 102 one-to-one setting, the central axis of feeding mouth 2 with the central axis coaxial line setting that divides transition runner 102 that corresponds, the afterbody of feeding mouth 2 is the tail end face of disk body form and afterbody and the side that adds heat material and say body 1 closely laminates, in the head and the middle part of feeding mouth 2 stretched into die cavity body 4, the head of feeding mouth 2 was the awl point form, the middle part of feeding mouth 2 was cylindric and the flexible heat insulating sleeve 3 of overcoat, the medial surface 301 of elastic heat insulating sleeve cooperatees with the side at 2 middle parts of feeding mouth, and the tail end face 302 of elastic heat insulating sleeve cooperatees with the head end face at 2 afterbody of feeding mouth. The flow channel of the feeding nozzle 2 is communicated from the tail part to the head part of the feeding nozzle 2, the tail part of the flow channel of the feeding nozzle 2 is communicated with the other end of the corresponding branch transition flow channel 102, the head part of the flow channel of the feeding nozzle 2 is arranged in an off-axis mode, and the head end port of the flow channel is used as a discharging port of the feeding nozzle.
The cavity body 4 is provided with more than one storage bin 401 and more than one mounting groove, the storage bins 401 and the heads of the feeding nozzles 2 are arranged in a one-to-one correspondence manner, and the mounting grooves are arranged in a one-to-one correspondence manner with the elastic heat insulation sleeves 3 in the middle of the feeding nozzles 2; the storage bin 401 is communicated with a material nozzle discharge hole of the corresponding feeding nozzle 2, a feed inlet 402 communicated with a product molding cavity of the cavity body 4 is arranged on the storage bin 401, the feed inlet 402 is corresponding to a conical tip at the head of the feeding nozzle 2, a feed gap is arranged between the feed inlet 402 and the conical tip, and materials in a molten state enter the product molding cavity of the cavity body 4 from the feed gap; the groove wall of the mounting groove is matched with the outer side surface 303 of the elastic heat insulation sleeve, and the groove bottom surface of the mounting groove is matched with the head end surface 304 of the elastic heat insulation sleeve.
Referring to fig. 3, the present embodiment shows six molded products 5, the heating channel body 1 is in a regular hexagonal prism shape, and the number of the feeding nozzle 2, the elastic heat insulating sleeve 3, and the sub-transition flow channels 102 (not shown in the figure) of the heating channel body 1 are all six.
The hot runner injection molding process comprises the following steps: the molten material is distributed to each feeding nozzle 2 through the main transition flow channel 101 and the branch transition flow channel 102 of the heating material channel body 1, then enters the storage bin 401 through the flow channel of the feeding nozzle 2, and finally enters the product forming cavity of the cavity body 4 from the feeding gap between the feeding hole 402 of the storage bin 401 and the conical tip of the head of the feeding nozzle 2, and is injection-molded into a formed product 5. In this injection molding process, the role of the heat conducting structure is embodied in: the side surface of the heating material channel body 1 is tightly attached to the tail end surface 201 of the tail part of the feeding nozzle to form a heat conduction plane for carrying out plane heat conduction; feed nozzle 2 can be because of the material, the mould temperature produces high temperature passively, produce radial direction and axial direction's thermal expansion deformation, and then between the side at the medial surface 301 of elastic heat insulating sleeve and the 2 middle parts of feed nozzle, can produce the extrusion between the tail end face 302 of elastic heat insulating sleeve and the head end face of feed nozzle 2 afterbody, between the lateral surface 303 of elastic heat insulating sleeve and the cell wall of mounting groove, also can produce the extrusion between the head end face 304 of elastic heat insulating sleeve and the cell bottom surface of mounting groove, elastic heat insulating sleeve 3 can produce elastic deformation and eliminate radial and axial thermal expansion clearance, guarantee the cooperation precision of feed nozzle 2 department, ensure that the feeding is accurate not have the leakage.
the elastic heat insulation sleeve 3 can be made of non-metal materials as shown in fig. 4, and can also be made of a combination of metal structures and non-metal structures as shown in fig. 5 to 7. Referring to fig. 5, the elastic heat insulation sleeve 3 includes a metal frame 305 and an elastic body 306, the metal frame 305 is in a ring shape, and the elastic body 306 is wrapped outside the metal frame 305. Referring to fig. 6, the elastic heat insulating sleeve 3 includes an elastic body 306 and two metal frames 305, the elastic body 306 is in a ring shape, two end faces of the elastic body 306 are respectively concentrically provided with an annular groove, and an annular and matching metal frame 305 is embedded in the annular groove. Referring to fig. 7, the elastic heat insulating jacket 3 includes a metal jacket 307 and an elastic body jacket 308, and the elastic body jacket 308 is fitted around the outer peripheral side of the metal jacket 307.
It should be noted that many variations and modifications of the embodiments of the present invention are possible, which are fully described, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.
Claims (10)
1. A heat conduction structure for hot runner injection molding is characterized by comprising a heating material channel body, a feeding nozzle, an elastic heat insulation sleeve and a cavity body;
The heating material channel body is arranged in the cavity body, the heating material channel body is cylindrical, a main transition flow channel and more than one sub-transition flow channel which are communicated are arranged on the heating material channel body, the main transition flow channel is arranged along the central axis of the heating material channel body, and the sub-transition flow channels are arranged along the radial direction of the heating material channel body;
The side surface of the heating material channel body is provided with more than one feeding nozzle, the feeding nozzles and the branch transition flow channels are arranged in a one-to-one correspondence mode, the tail part of each feeding nozzle is in a disc shape, the tail end surface of the tail part of each feeding nozzle is tightly attached to the side surface of the heating material channel body, the head part and the middle part of each feeding nozzle extend into the cavity body, the middle part of each feeding nozzle is cylindrical, an elastic heat insulation sleeve is sleeved outside each feeding nozzle, the inner side surface of each elastic heat insulation sleeve is matched with the side surface of the middle part of each feeding nozzle, and the tail end surface of each elastic heat;
The die cavity body is provided with more than one mounting groove, the elastic heat insulation sleeves in the middle of the mounting groove and the feeding nozzle are arranged in a one-to-one correspondence mode, the groove wall of the mounting groove is matched with the outer side face of the elastic heat insulation sleeve, and the groove bottom face of the mounting groove is matched with the head end face of the elastic heat insulation sleeve.
2. The hot runner injection molding heat conduction structure of claim 1, wherein one end of the main transition flow channel is connected to one end surface of the heating material channel body, one end of the sub-transition flow channel is connected to the other end of the main transition flow channel, and the other end of the sub-transition flow channel is connected to the side surface of the heating material channel body.
3. The hot runner injection molding heat conduction structure of claim 2, wherein more than two branch transition flow channels are uniformly distributed along the circumferential direction of the heating material channel body.
4. The heat conduction structure of hot runner injection molding according to claim 3, wherein the heating channel body is in a regular prism shape, and the number of the side surfaces of the sub-transition channel and the hot channel body is the same and the sub-transition channel and the hot channel body are arranged in one-to-one correspondence.
5. The hot runner injection molding heat conduction structure of claim 1, wherein the central axis of the feeding nozzle is coaxial with the central axis of the corresponding branch transition flow channel, the head of the feeding nozzle is conical, the flow channel of the feeding nozzle is communicated from the tail to the head of the feeding nozzle, the tail of the flow channel of the feeding nozzle is communicated with the corresponding branch transition flow channel, and the head port of the flow channel of the feeding nozzle is a discharge port of the feeding nozzle.
6. Hot runner injection molded heat transfer structure as in claim 5 wherein the head of the flow channel of the feed nozzle is off-axis; the die cavity body is provided with more than one storage bin, the storage bins and the heads of the feeding nozzles are arranged in a one-to-one correspondence mode, the storage bins are communicated with the discharging ports of the feeding nozzles corresponding to the storage bins, the storage bins are provided with feeding ports communicated with the product forming cavity of the die cavity body, the feeding ports correspond to the conical tips of the heads of the feeding nozzles, and feeding gaps are arranged between the feeding ports and the conical tips.
7. hot runner injection molded heat transfer structure as in any one of claims 1-6 wherein the elastomeric insulating sleeve is made of a non-metallic material.
8. Hot runner injection molded heat transfer structure as in any one of claims 1-6 wherein the resilient sleeve comprises a metal frame and an elastomer, the metal frame being in the form of a ring and the elastomer being wrapped around the metal frame.
9. Hot runner injection molded heat transfer structure as in any of claims 1-6, wherein the elastic heat insulating sleeve comprises an elastic body and two metal frames, the elastic body is in the shape of a ring, two annular grooves are concentrically formed on two end surfaces of the elastic body, and an annular and matching metal frame is disposed in the annular groove.
10. Hot runner injection molded heat transfer structure as in any one of claims 1-6 wherein the elastomeric insulating sleeve comprises a metallic sleeve and an elastomeric sleeve disposed around the outer periphery of the metallic sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920201729.3U CN209738199U (en) | 2019-02-15 | 2019-02-15 | Hot runner injection moulding's heat-conduction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920201729.3U CN209738199U (en) | 2019-02-15 | 2019-02-15 | Hot runner injection moulding's heat-conduction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209738199U true CN209738199U (en) | 2019-12-06 |
Family
ID=68707111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920201729.3U Active CN209738199U (en) | 2019-02-15 | 2019-02-15 | Hot runner injection moulding's heat-conduction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209738199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109702967A (en) * | 2019-02-15 | 2019-05-03 | 贝普医疗科技有限公司 | A kind of heat conduction structure of hot channel injecting formation |
-
2019
- 2019-02-15 CN CN201920201729.3U patent/CN209738199U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109702967A (en) * | 2019-02-15 | 2019-05-03 | 贝普医疗科技有限公司 | A kind of heat conduction structure of hot channel injecting formation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103552211B (en) | Edge-gated injection forming equipment | |
| US5498150A (en) | High thermal capacity mold assembly | |
| CN204673990U (en) | A kind of single wall heat-shrinkable T bush extrudes no-mould adjusted tool | |
| US9004906B2 (en) | Cavity insert film flow cooling | |
| US4818217A (en) | Injection molding system with nozzles in tandem | |
| CN209738199U (en) | Hot runner injection moulding's heat-conduction structure | |
| US20090162473A1 (en) | Neck Block Cooling | |
| CN101456246B (en) | Compound rubber extrusion device head | |
| CN103085235A (en) | Novel total heat channel needle cylinder mould | |
| WO2020164381A1 (en) | Heat conduction structure for hot runner injection molding | |
| CN102909829B (en) | Full hot runner forming die for injector outer sheath | |
| CN208543740U (en) | A kind of minor diameter rubber three-way bend pipe compression moulding die | |
| CN108883560B (en) | Injection mould | |
| CN216635192U (en) | Runner of many caves of same product mould advances glued structure | |
| CN105946183A (en) | Plastic mold used for automotive interior | |
| CN203344275U (en) | Bottle preform injection mould using auxiliary blowing demoulding | |
| CN213830142U (en) | Plastic work piece injection mold | |
| CN105081291A (en) | Sectional type ejector rod of aluminum alloy hub casting mold | |
| CN206937883U (en) | Plasticiser | |
| CN207997535U (en) | One kind is spoken out of turn a hot flow path | |
| CN203171962U (en) | Novel full hot runner needle cylinder mould | |
| CN210880667U (en) | Flow distribution plate structure of hot runner system | |
| CN218966027U (en) | Multi-cavity open type injection molding system | |
| CN219789183U (en) | Quick forming product mold with cooling pipeline | |
| CN212241956U (en) | Square plate type multi-hole hot nozzle and hot runner system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.14, Xingji Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Patentee after: Beipu Medical Technology Co.,Ltd. Address before: No.14, Xingji Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Patentee before: Beipu Medical Technology Co.,Ltd. |