CN218227623U - Can reduce heat of first temperature of chewing of needle fast and chew structure and hot runner system - Google Patents
Can reduce heat of first temperature of chewing of needle fast and chew structure and hot runner system Download PDFInfo
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- CN218227623U CN218227623U CN202222378582.XU CN202222378582U CN218227623U CN 218227623 U CN218227623 U CN 218227623U CN 202222378582 U CN202222378582 U CN 202222378582U CN 218227623 U CN218227623 U CN 218227623U
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Abstract
The utility model relates to a hot runner technical field provides a structure and hot runner system are chewed to heat that can reduce needle fast and chew first temperature, and wherein, the structure is chewed to heat includes: a hot nozzle body; the nozzle tip is arranged at one end of the hot nozzle body and is connected with the hot nozzle body; the heat insulation cap is arranged at one end of the nozzle tip, which is far away from the hot nozzle body, and is connected with the nozzle tip; the cooling cap is arranged at one end of the heat insulation cap far away from the nozzle tip and is connected with the heat insulation cap; the valve needle, the needle passes through hot nozzle body, chews the point in proper order, thermal-insulated cap and cooling cap and extend the cooling cap, and the cooling cap is chewed the head with the needle of needle and is closely laminated, and the cooling cap still is used for closely laminating with cooling mould benevolence. The utility model discloses a heat transfer that the head was chewed to the needle gives the cooling cap, absorbs the needle and chews the partial heat of head, and the cooling cap gives cooling die benevolence with the heat transfer that absorbs again to make product surface cooling, reduce the temperature that the head was chewed to the needle, avoided product runner department to cool off badly, reduce the production of the defect of moulding plastics.
Description
Technical Field
The utility model relates to a hot runner technical field, more specifically say so, relate to a structure and hot runner system are chewed to heat that can reduce needle fast and chew first temperature.
Background
During injection molding, a valve needle nozzle head of a valve needle is in contact with the surface of a product, when the product is subjected to injection molding and pressure maintaining, the valve needle nozzle head is continuously heated by a hot runner system, the temperature of the valve needle nozzle head is too high and the valve needle nozzle head is too hot, as shown by heat flow arrows in fig. 1 and fig. 2, heat is transferred to the upper surface of the product, a cooling mold core cannot be cooled, finally, the cooling at a product gate is poor, and the product has injection molding defects.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a structure and hot runner system are chewed to heat that can reduce the needle fast and chew first temperature to product runner department cools off badly among the solution prior art, and the technical problem of defect of moulding plastics appears in the product.
In order to achieve the above object, the utility model adopts the following technical scheme:
on the one hand, the utility model provides a structure is chewed to heat that can reduce needle fast and chew first temperature, include:
a hot nozzle body;
the nozzle tip is arranged at one end of the hot nozzle body and is connected with the hot nozzle body;
the heat insulation cap is arranged at one end of the nozzle tip, which is far away from the hot nozzle body, and is connected with the nozzle tip;
the cooling cap is arranged at one end of the heat insulation cap, which is far away from the nozzle tip, and is connected with the heat insulation cap;
the valve needle sequentially penetrates through the hot nozzle body, the nozzle tip, the heat insulation cap and the cooling cap and extends out of the cooling cap, the cooling cap is tightly attached to the nozzle tip of the valve needle, and the cooling cap is further used for being tightly attached to the cooling mold core.
According to foretell but reduce heat of needle mouth head temperature fast and chew structure, the cooling cap is the infundibulate, the cooling cap includes:
a straight-tube connecting part;
the inclined connecting part is arranged at one end of the straight-tube connecting part and fixedly connected with the straight-tube connecting part, and the straight-tube connecting part and the inclined connecting part are sleeved outside the heat insulation cap and are connected with the heat insulation cap in an extrusion manner;
the bottom of slope connecting portion is equipped with the confession the needle that the head was chewed and worn out is chewed first through-hole to the needle, the inner wall that first through-hole was chewed to the needle with the needle is chewed the head and is closely laminated, the surface of slope connecting portion with cooling mould benevolence closely laminates.
According to the above hot nozzle structure capable of rapidly reducing the temperature of the nozzle head of the valve needle, the cooling die core is provided with a cavity position, the inclined connecting part is arranged in the cavity position, the outer surface of the inclined connecting part is tightly attached to the cooling die core, and the cavity position is further internally provided with a cold water sleeve.
According to the hot nozzle structure capable of quickly reducing the nozzle head temperature of the valve needle, the inclination angle of the outer surface of the inclined connecting part is 10-80 degrees.
According to the hot nozzle structure capable of rapidly reducing the nozzle temperature of the valve needle, the inclination angle of the outer surface of the inclined connecting part is 15-45 degrees.
According to the hot nozzle structure capable of quickly reducing the temperature of the nozzle head of the valve needle, the depth of the through hole of the nozzle head of the valve needle is not more than 0.02mm.
According to the hot nozzle structure capable of quickly reducing the temperature of the nozzle head of the valve needle, the depth of the through hole of the nozzle head of the valve needle is 0.01mm.
According to the hot nozzle structure capable of quickly reducing the nozzle temperature of the valve needle, the top edge of the straight cylinder connecting part is provided with the fillet.
According to the above hot nozzle structure capable of rapidly reducing the nozzle head temperature of the valve needle, the cooling cap is made of a copper material.
On the other hand, the utility model also provides a hot runner system, which comprises the hot nozzle structure capable of quickly reducing the temperature of the valve needle nozzle head;
the hot runner system further comprises a splitter plate and an air cylinder, one end of the valve needle is connected with the air cylinder, and the other end of the valve needle sequentially penetrates through the splitter plate, the hot nozzle body, the nozzle tip, the heat insulation cap and the cooling cap and extends out of the cooling cap.
The utility model provides a but reduce the needle fast and chew structure and hot runner system's beneficial effect of hot of first temperature of chewing lies in at least:
the utility model provides a structure and hot runner system are chewed to heat that can reduce needle fast and chew first temperature, be provided with the cooling cap in the outside of thermal-insulated cap, wear the heat in proper order when the needle and chew the body, chew the point, thermal-insulated cap and cooling cap extend behind the cooling cap, the head is chewed closely with the needle of needle to the cooling cap, and the cooling cap still is used for closely laminating with cooling mould benevolence, thereby realize that the needle chews the heat transfer of head and give the cooling cap rather than closely laminating, the realization has absorbed the needle and has chewed the partial heat of head, the cooling cap gives the cooling mould benevolence rather than closely laminating with absorptive heat again, thereby make product surface cooling, reduce the temperature that the needle chewed the head, the product runner department cools off badly has been avoided, reduce the production of the defect of moulding plastics.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a hot runner system of the prior art;
fig. 2 is an enlarged structural view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram of a hot runner system according to an embodiment of the present invention;
fig. 4 is an enlarged structural view of a portion B in fig. 3.
Wherein, in the figures, the respective reference numerals:
1000. a hot runner system; 100. a hot nozzle structure; 110. a hot nozzle body; 120. a tip; 130. a heat insulating cap; 140. a cooling cap; 141. a straight-tube connecting part; 1411. rounding off; 142. an inclined connecting part; 1421. a valve needle tip through hole; 150. a valve needle; 151. a valve needle tip; 200. a flow distribution plate; 300. a cylinder; 2000. cooling the mold core; 201. a cavity location; 202. and (5) a cold water jacket.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly disposed on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 3 and 4, the present embodiment provides a hot nozzle structure 100 capable of rapidly reducing the temperature of a valve needle nozzle head 151, including: a hot nozzle body 110; the tip 120 is arranged at one end of the hot tip body 110 and is connected with the hot tip body 110; the heat insulation cap 130 is arranged at one end of the mouth tip 120 far away from the hot mouth body 110, and the heat insulation cap 130 is connected with the mouth tip 120; the cooling cap 140 is arranged at one end of the heat insulation cap 130 far away from the mouth tip 120 and is connected with the heat insulation cap 130; the valve needle 150 sequentially penetrates through the hot nozzle body 110, the nozzle tip 120, the heat insulation cap 130 and the cooling cap 140 and extends out of the cooling cap 140, the cooling cap 140 is tightly attached to a valve needle nozzle head 151 of the valve needle 150, and the cooling cap 140 is further used for tightly attaching to a cooling mold core 2000.
According to the hot nozzle structure 100 capable of rapidly reducing the temperature of the valve needle nozzle head 151 provided by the embodiment, the cooling cap 140 is arranged outside the heat insulation cap 130, after the valve needle 150 sequentially penetrates through the hot nozzle body 110, the nozzle tip 120, the heat insulation cap 130 and the cooling cap 140 and extends out of the cooling cap 140, the cooling cap 140 is tightly attached to the valve needle nozzle head 151 of the valve needle 150, and the cooling cap 140 is further used for being tightly attached to the cooling mold core 2000, so that the heat of the valve needle nozzle head 151 is transferred to the cooling cap 140 tightly attached to the valve needle nozzle head, part of the heat of the valve needle nozzle head 151 is absorbed, and the cooling cap 140 transfers the absorbed heat to the cooling mold core 2000 tightly attached to the cooling mold core 140, so that the surface of a product is cooled, the temperature of the valve needle nozzle head 151 is reduced, poor cooling at a product gate is avoided, and the generation of injection molding defects is reduced (as shown by heat flow arrows in fig. 4).
In one embodiment, referring to fig. 4, the cooling cap 140 is funnel-shaped, and the cooling cap 140 includes: the straight cylindrical connecting portion 141; the inclined connecting part 142 is arranged at one end of the straight-tube connecting part 141 and is fixedly connected with the straight-tube connecting part 141, and both the straight-tube connecting part 141 and the inclined connecting part 142 are sleeved outside the heat insulation cap 130 and are connected with the heat insulation cap 130 in an extrusion manner; the bottom of the inclined connecting portion 142 is provided with a valve needle nozzle through hole 1421 through which the valve needle nozzle 151 penetrates, the inner wall of the valve needle nozzle through hole 1421 is tightly attached to the valve needle nozzle 151, and the outer surface of the inclined connecting portion 142 is tightly attached to the cooling mold core 2000.
The valve needle mouth head 151 penetrates through the valve needle mouth head through hole 1421 and closely fits with the valve needle mouth head through hole 1421, the effect of absorbing partial heat of the valve needle mouth head 151 is achieved, the outer surface of the inclined connecting part 142 is closely fitted with the cooling mold core 2000, the inclined connecting part 142 conveniently transmits the absorbed partial heat to the cooling mold core 2000, so that the surface of a product is cooled, the temperature of the valve needle mouth head 151 is reduced, the poor cooling of a product sprue is avoided, and the generation of injection molding defects is reduced.
In one embodiment, referring to fig. 3, the cooling mold core 2000 has a cavity 201, the inclined connecting portion 142 is disposed in the cavity 201, an outer surface of the inclined connecting portion 142 is closely attached to the cooling mold core 2000, and a cooling water jacket 202 is further disposed in the cavity 201.
The cavity 201 is disposed on the cooling mold insert 2000, so that the inclined connecting portion 142 can be stably connected to the cooling mold insert 2000, and the outer surface of the inclined connecting portion 142 is tightly attached to the cooling mold insert 2000, thereby facilitating the transfer of part of the heat absorbed by the inclined connecting portion 142 to the cooling mold insert 2000, cooling the surface of the product, and reducing the temperature of the nozzle tip 151 of the valve needle.
In one embodiment, referring to fig. 4, the inclination angle α of the outer surface of the inclined connecting portion 142 is 10 ° to 80 °.
In one embodiment, the outer surface of the inclined connection portion 142 has an inclination angle α of 15 ° to 45 °.
Alternatively, the outer surface of the inclined connection portion 142 is inclined at an angle α of 25 °.
Alternatively, the outer surface of the inclined connection portion 142 is inclined at an angle α of 30 °.
It should be understood that the inclination angle α of the outer surface of the inclined connecting portion 142 is not limited to the above case, and may be other cases, which are not limited herein.
In one embodiment, referring to fig. 4, the depth h of valve needle beak through hole 1421 is no greater than 0.02mm.
In one embodiment, the valve needle beak through bore 1421 has a depth h of 0.01mm.
It should be understood that the depth h of valve needle beak through hole 1421 is not limited to the above case, and may be other cases, and is not limited thereto.
In one embodiment, referring to fig. 4, the top edge of the straight cylinder connecting portion 141 is provided with a rounded corner 1411. The fillet 1411 facilitates rapid sleeving of the entire cooling cap 140 over the exterior of the thermal cap 130.
In one embodiment, referring to fig. 4, the cooling cap 140 is made of copper. The cooling cap 140 is made of a copper material, so that the thermal conductivity of the cooling cap 140 is improved, and the heat of the valve needle mouth head 151 can be quickly transferred to the cooling cap 140, thereby efficiently absorbing part of the heat of the valve needle mouth head 151.
The embodiment further provides a hot runner system 1000, which comprises the above hot nozzle structure 100 capable of rapidly reducing the temperature of the valve needle nozzle head 151;
the hot runner system 1000 further includes a splitter plate 200 and a cylinder 300, one end of the valve needle 150 is connected to the cylinder 300, and the other end of the valve needle 150 sequentially passes through the splitter plate 200, the hot nozzle body 110, the nozzle tip 120, the heat insulation cap 130 and the cooling cap 140 and extends out of the cooling cap 140. Since the structure 100 of the hot nozzle has been described in detail above, it will not be described in detail here.
In summary, the present embodiment provides a thermal nozzle structure 100 capable of rapidly reducing the temperature of a valve needle nozzle head 151, comprising: a hot nozzle body 110; the tip 120 is arranged at one end of the hot tip body 110 and is connected with the hot tip body 110; the heat insulation cap 130 is arranged at one end of the mouth tip 120 far away from the hot mouth body 110, and the heat insulation cap 130 is connected with the mouth tip 120; the cooling cap 140 is arranged at one end of the heat insulation cap 130 far away from the mouth tip 120 and is connected with the heat insulation cap 130; the valve needle 150 sequentially penetrates through the hot nozzle body 110, the nozzle tip 120, the heat insulation cap 130 and the cooling cap 140 and extends out of the cooling cap 140, the cooling cap 140 is tightly attached to a valve needle nozzle head 151 of the valve needle 150, and the cooling cap 140 is further used for tightly attaching to a cooling mold core 2000. The hot nozzle structure 100 capable of rapidly reducing the temperature of the valve needle nozzle head 151 provided by the embodiment is characterized in that the cooling cap 140 is arranged outside the heat insulation cap 130, after the valve needle 150 sequentially penetrates through the hot nozzle body 110, the nozzle tip 120, the heat insulation cap 130 and the cooling cap 140 and extends out of the cooling cap 140, the cooling cap 140 is tightly attached to the valve needle nozzle head 151 of the valve needle 150, and the cooling cap 140 is further used for being tightly attached to the cooling mold core 2000, so that the heat of the valve needle nozzle head 151 is transferred to the cooling cap 140 tightly attached to the valve needle nozzle head, part of the heat of the valve needle nozzle head 151 is absorbed, the cooling cap 140 transfers the absorbed heat to the cooling mold core 2000 tightly attached to the cooling mold core, the surface of a product is cooled, the temperature of the valve needle nozzle head 151 is reduced, poor cooling at a product gate is avoided, and injection molding defects are reduced.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a structure is chewed to heat that can reduce needle fast and chew first temperature which characterized in that includes:
a hot nozzle body;
the mouth tip is arranged at one end of the hot mouth body and is connected with the hot mouth body;
the heat insulation cap is arranged at one end of the nozzle tip, which is far away from the hot nozzle body, and is connected with the nozzle tip;
the cooling cap is arranged at one end of the heat insulation cap, which is far away from the nozzle tip, and is connected with the heat insulation cap;
the valve needle sequentially penetrates through the hot nozzle body, the nozzle tip, the heat insulation cap and the cooling cap and extends out of the cooling cap, the cooling cap is tightly attached to the nozzle tip of the valve needle, and the cooling cap is further used for being tightly attached to the cooling mold core.
2. The hot nozzle structure capable of rapidly reducing the nozzle temperature of the valve needle according to claim 1, wherein the cooling cap is funnel-shaped, and the cooling cap comprises:
a straight-tube connecting part;
the inclined connecting part is arranged at one end of the straight-tube connecting part and is fixedly connected with the straight-tube connecting part, and the straight-tube connecting part and the inclined connecting part are sleeved outside the heat insulation cap and are connected with the heat insulation cap in an extrusion manner;
the bottom of slope connecting portion is equipped with the confession the needle that the head was chewed and worn out is chewed first through-hole to the needle, the inner wall that first through-hole was chewed to the needle with the needle is chewed the head and is closely laminated, the surface of slope connecting portion with cooling mould benevolence closely laminates.
3. The hot nozzle structure capable of rapidly reducing the temperature of the nozzle head of the valve needle according to claim 2, wherein the cooling mold core is provided with a cavity position, the inclined connecting part is arranged in the cavity position, the outer surface of the inclined connecting part is tightly attached to the cooling mold core, and a cold water jacket is further arranged in the cavity position.
4. The hot nozzle structure capable of rapidly reducing the nozzle tip temperature of the valve needle according to claim 2, wherein the inclination angle of the outer surface of the inclined connecting part is 10 ° to 80 °.
5. A hot nozzle structure capable of rapidly reducing the nozzle tip temperature of a valve needle according to claim 3, characterized in that the inclination angle of the outer surface of the inclined connecting part is 15 ° to 45 °.
6. The hot nozzle structure capable of rapidly reducing the temperature of the nozzle head of the valve needle as claimed in claim 2, wherein the depth of the through hole of the nozzle head of the valve needle is not more than 0.02mm.
7. The hot nozzle structure capable of rapidly reducing the temperature of the nozzle head of the valve needle according to claim 5, wherein the depth of the through hole of the nozzle head of the valve needle is 0.01mm.
8. The hot nozzle structure capable of rapidly reducing the nozzle head temperature of the valve needle according to claim 2, wherein the top edge of the straight cylinder connecting part is provided with a rounded corner.
9. A hot nozzle structure for rapidly reducing the nozzle tip temperature of a valve needle as defined in claim 1 wherein the cooling cap is made of copper.
10. A hot runner system comprising the hot nozzle structure of any one of claims 1 to 9 capable of rapidly reducing the nozzle tip temperature of a valve needle;
the hot runner system further comprises a splitter plate and an air cylinder, one end of the valve needle is connected with the air cylinder, and the other end of the valve needle sequentially penetrates through the splitter plate, the hot nozzle body, the nozzle tip, the heat insulation cap and the cooling cap and extends out of the cooling cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222378582.XU CN218227623U (en) | 2022-09-07 | 2022-09-07 | Can reduce heat of first temperature of chewing of needle fast and chew structure and hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222378582.XU CN218227623U (en) | 2022-09-07 | 2022-09-07 | Can reduce heat of first temperature of chewing of needle fast and chew structure and hot runner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218227623U true CN218227623U (en) | 2023-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222378582.XU Active CN218227623U (en) | 2022-09-07 | 2022-09-07 | Can reduce heat of first temperature of chewing of needle fast and chew structure and hot runner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218227623U (en) |
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2022
- 2022-09-07 CN CN202222378582.XU patent/CN218227623U/en active Active
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