CN214645524U - Be applied to mouth core structure of production thick wall light guide material - Google Patents
Be applied to mouth core structure of production thick wall light guide material Download PDFInfo
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- CN214645524U CN214645524U CN202120840099.1U CN202120840099U CN214645524U CN 214645524 U CN214645524 U CN 214645524U CN 202120840099 U CN202120840099 U CN 202120840099U CN 214645524 U CN214645524 U CN 214645524U
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- core
- water conservancy
- conservancy diversion
- runner
- mouth
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- 239000000463 material Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000155 melt Substances 0.000 claims abstract description 10
- 238000002788 crimping Methods 0.000 claims abstract description 5
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 238000005491 wire drawing Methods 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a be applied to mouth core structure of production thick wall light guide material, including the mouth core, hot mouth main part, install in hot mouth main part lower extreme and inject the mouth core in the runner department of hot mouth main part inner chamber, the mouth core includes fusiformis water conservancy diversion core portion and the cyclic annular water conservancy diversion cover portion that inside and outside concentricity set up, connect a plurality of brace rods of water conservancy diversion core portion and water conservancy diversion cover portion, water conservancy diversion cover portion crimping is between hot mouth main part inner wall and runner department, water conservancy diversion core portion stretches into runner department inner chamber, a plurality of mouth core chutes are separated into with the clearance between water conservancy diversion core portion and water conservancy diversion cover portion to a plurality of brace rods, hot mouth main part inner chamber forms the fuse-element runner through mouth core chute and runner department inner chamber intercommunication. The utility model discloses can reduce shaping loss of pressure, avoid the melt to be detained in the runner, have the effect that prevents the runner wire drawing simultaneously again.
Description
Technical Field
The utility model relates to a hot runner technical field especially relates to a be applied to mouth core structure of production thick wall light guide material.
Background
When a thick-wall light guide product is injection-molded, the molding process is very special because the wall thickness of the product is extremely thick. The thick-wall light guide product needs to have very good light transmission, the thick wall cannot have the problem of shrinkage, and flow marks cannot be formed at important light distribution positions, so that the product can be formed only by adopting a high-pressure low-speed forming process. The method has important appearance requirements on thick-wall light guide products in the market, and the products cannot have product defects such as yellowing and air lines, so that the requirement that any retention area cannot exist in the whole runner and the continuous production is influenced because a sprue cannot have a wire drawing problem is required.
When adopting current hot runner mouth core structure to mould plastics, there is the defect that loss of pressure is big in the plastic melt, the limit technology of equipment need be used during the shaping, all there is the influence to the life-span of equipment, mould and hot runner, there is the region of slightly detaining in the mouth core the while, make during continuous production remain in the regional decomposition material of detaining and be washed into the product, influence the product outward appearance, lead to the product to scrap, consequently, present mouth core structure can not satisfy the harsh demand of customer at present, must improve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a be applied to the mouth core structure of production thick wall light guide material, can reduce shaping loss of pressure, avoid the melt to be detained in the runner, have the effect that prevents the runner wire drawing simultaneously again.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a be applied to mouth core structure of production thick wall light guide material, includes mouth core, hot mouth main part, installs in hot mouth main part lower extreme and prescribes a limit to the runner department in hot mouth main part inner chamber with the mouth core, the mouth core includes fusiformis water conservancy diversion core portion and the cyclic annular water conservancy diversion cover portion that inside and outside concentric setting, connects a plurality of brace rods of water conservancy diversion core portion and water conservancy diversion cover portion, water conservancy diversion cover portion crimping is between hot mouth main part inner wall and runner department, water conservancy diversion core portion stretches into runner department inner chamber, and is a plurality of mouth core launders are separated into with the clearance between water conservancy diversion core portion and water conservancy diversion cover portion to the brace rod, hot mouth main part inner chamber is through mouth core launder and runner department inner chamber intercommunication and form the fuse-element runner.
The supporting ribs are radially and uniformly distributed in the circumferential direction, and the upper end faces of the supporting ribs are curved surfaces which are sunken downwards.
The joints of the support ribs and the flow guide core part and the joints of the support ribs and the flow guide sleeve part are smooth curved surfaces.
The flow guide core part is connected with the support rib through a reinforcing rib.
The longitudinal section of the reinforcing rib is triangular, and two triangular sides of the reinforcing rib are correspondingly connected with the outer wall of the flow guide core part and the lower end face of the support rib.
The hot nozzle body inner chamber is equipped with step portion, water conservancy diversion cover portion crimping is on step portion, water conservancy diversion cover portion annular inner wall connects into smooth surface with the hot nozzle body annular inner wall, the runner department inner chamber wall that are located mouth core top.
The sprue department comprises an A runner and a B runner which are connected up and down, a necking with a reduced inner diameter is formed at the joint of the A runner and the B runner, and the lower tip of the flow guide core part extends into the necking.
The sleeve assembly comprises a first sleeve and a second sleeve which are connected up and down through a connecting sleeve, a first end cover seal is arranged between an upper port of the first sleeve and the hot nozzle main body, and a second end cover seal is arranged between a lower port of the second sleeve and the hot nozzle main body.
The utility model has the advantages that: the resistance of the nozzle core to the plastic melt is reduced by the arrangement of the streamline nozzle core, the melt excess is increased by the nozzle core runner, and the pressure loss generated when the plastic melt flows through the runner is reduced; the flow guide core part extends into the position of the sprue part, so that the sprue wire drawing problem during injection molding can be prevented; the nozzle core, the hot nozzle main body and the sprue runner are butted to form a melt flow channel without dead angles, so that a melt can smoothly pass through and is not detained, the problem of product quality caused by the detained area in the prior art is solved, and the product quality is ensured.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a first perspective view of the nozzle core of the present invention;
fig. 4 is a second perspective view of the nozzle core of the present invention;
FIG. 5 is a top view of a nozzle core of the present invention;
fig. 6 is a block diagram of a hot nozzle incorporating the present invention.
In the figure: the hot nozzle comprises a hot nozzle main body 1, a first end cover 11, a second end cover 12, a clamp spring 13, a step part 14, a nozzle core 2, a flow guide core part 21, a flow guide sleeve part 22, a support rib 23, a nozzle core runner 24, a reinforcing rib 25, a pouring gate 3, an A runner 31, a B runner 32, a necking part 33, a sleeve pipe assembly 4, a first sleeve pipe 5, a connecting sleeve 6, a first step part 61, a second step part 62, a second sleeve pipe 7, a first heater 8 and a second heater 9.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 6, a nozzle core structure applied to the production of thick-walled light guide materials comprises a nozzle core 2, a hot nozzle main body 1, and a gate department 3 installed at the lower end of the hot nozzle main body 1 and limiting the nozzle core 2 in the inner cavity of the hot nozzle main body 1, wherein the nozzle core 2 comprises a fusiform flow guide core part 21 and an annular flow guide sleeve part 22 which are concentrically arranged inside and outside, and a plurality of support ribs 23 connecting the flow guide core part 21 and the flow guide sleeve part 22, the flow guide sleeve part 22 is pressed between the inner wall of the hot nozzle main body 1 and the gate department 3, the flow guide core part 21 extends into the inner cavity of the gate department 3, the plurality of support ribs 23 separate a gap between the flow guide core part 21 and the flow guide sleeve part 22 into a plurality of nozzle core chutes 24, and the inner cavity of the hot nozzle main body 1 is communicated with the inner cavity of the gate department 3 through the nozzle core chutes 24 to form a melt flow channel. The supporting ribs 23 are radially and uniformly distributed in the circumferential direction, the upper end surfaces of the supporting ribs 23 are curved surfaces which are sunken downwards, and the thickness L of the supporting ribs 23 is 1.43-1.53 mm; the joints of the support ribs 23 and the flow guide core part 21 and the joints of the support ribs 23 and the flow guide sleeve part 22 are smooth curved surfaces. Make the whole streamlined that is of mouth core 2 through above-mentioned structural setting, can furthest reduce the resistance of mouth core 2 to the plastic melt, and brace rod 23 thickness is narrower, and brace rod 23 quantity sets up to three, can increase the fuse-element volume of gluing of flowing through mouth core chute 24, furthest reduces the pressure loss of plastic melt flow mouth core structure.
The guide core part 21 is connected with the support rib 23 through a reinforcing rib 25.
The longitudinal section of the reinforcing rib 25 is triangular, two triangular sides of the reinforcing rib 25 are correspondingly connected with the outer wall of the flow guide core part 21 and the lower end face of the support rib 23, and the rest one side of the reinforcing rib 25 is an inclined plane. The structural strength of the nozzle core 2 is increased by the arrangement of the reinforcing ribs 25, and meanwhile, the retention of plastic melt on the reinforcing ribs 25 can also be avoided. The flow guide core part 21, the flow guide sleeve part 22, the support ribs 23, the spout core launder 24 and the reinforcing ribs 25 are of an integrally formed structure.
The inner cavity of the hot nozzle main body 1 is provided with a step part 14, the guide sleeve part 22 is crimped on the step part 14, and the annular inner wall of the guide sleeve part 22 is connected with the annular inner wall of the hot nozzle main body 1 above the nozzle core 2 and the inner cavity wall of the pouring gate department 3 to form a smooth surface. In fact, the diameter of the annular inner wall of the flow guide sleeve part 22 is the same as the diameter of the cavity of the hot nozzle main body 1 above the nozzle core 2 and the diameter of the cavity at the upper end of the pouring gate department 3, and through the arrangement, the inner flow channel of the hot nozzle main body 1, the flow channel of the nozzle core 24 and the inner flow channel of the pouring gate department 3 are perfectly butted, no dead angle exists in the flow of the melt, and the retention of the melt is effectively prevented.
The gate department 3 comprises an A runner 31 and a B runner 32 which are connected up and down, a necking 33 with a reduced inner diameter is formed at the joint of the A runner 31 and the B runner 32, and the lower tip of the flow guide core part 21 extends into the necking 33. The runner A31 is a semi-ellipsoid-shaped structure with a tip at the bottom, the runner B32 is a frustum-shaped structure with the diameter gradually increasing from top to bottom, and the diameter of the joint of the runner A31 and the runner B32 is the smallest. A gap is reserved between the lower tip of the flow guide core part 21 and the necking part 33. The provision of the flow guide core portion 21 can prevent the gate from being drawn.
The utility model discloses mouth core structure is a part of hot mouth, and hot mouth still includes and establishes fixed sleeve pipe assembly 4 with hot mouth main part 1 overcoat, sleeve pipe assembly 4 includes first sleeve pipe 5 and second sleeve pipe 7 through adapter sleeve 6 connection from top to bottom, the internal diameter size of first sleeve pipe 5 is greater than the internal diameter size of second sleeve pipe 7, be equipped with first step portion 61 and second step portion 62 on adapter sleeve 6, first sleeve pipe 5 is connected with first step portion 61 interference fit, second sleeve pipe 7 is connected with second step portion 62 interference fit; the upper end opening of the first sleeve 5 is sealed with the hot nozzle body 1 through a first end cover 11, and the lower end opening of the second sleeve 7 is sealed with the hot nozzle body 1 through a second end cover 12. The clamp spring 13 is further installed at the lower end of the hot nozzle body 1, and the clamp spring 13 is located below the second end cover 12. The first sleeve 5 and the second sleeve 7 are arranged at intervals with the hot nozzle body 1.
The hot nozzle also comprises a first heater 8 sleeved on the outer wall of the upper part of the hot nozzle main body 1 and a second heater 9 sleeved on the outer wall of the lower part of the hot nozzle main body 1, and the first heater and the second heater are used for heating plastic melt and ensuring the melt to flow.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a be applied to mouth core structure of production thick wall light guide material, includes mouth core (2), hot mouth main part (1), installs in hot mouth main part (1) lower extreme and prescribes a limit to the runner department (3) of hot mouth main part (1) inner chamber with mouth core (2), its characterized in that: mouth core (2) including inside and outside fusiformis water conservancy diversion core portion (21) and cyclic annular water conservancy diversion cover portion (22) that the heart set up, connect water conservancy diversion core portion (21) and a plurality of brace rod (23) of water conservancy diversion cover portion (22), water conservancy diversion cover portion (22) crimping is between hot mouth main part (1) inner wall and runner department (3), water conservancy diversion core portion (21) stretch into runner department (3) inner chamber, and is a plurality of mouth core chute (24) are separated into with the clearance between water conservancy diversion core portion (21) and water conservancy diversion cover portion (22) in brace rod (23), hot mouth main part (1) inner chamber is through mouth core chute (24) and runner department (3) inner chamber intercommunication and form the melt runner.
2. A spout core structure applied to the production of thick-walled light guide material as claimed in claim 1, wherein: the supporting ribs (23) are radially and uniformly distributed in the circumferential direction, and the upper end faces of the supporting ribs (23) are curved surfaces which are sunken downwards.
3. A spout core structure applied to the production of thick-walled light guide material as claimed in claim 1, wherein: the joints of the support ribs (23) and the flow guide core part (21) and the joints of the support ribs (23) and the flow guide sleeve part (22) are smooth curved surfaces.
4. A spout core structure applied to the production of thick-walled light guide material as claimed in claim 1, wherein: the flow guide core part (21) is connected with the support rib (23) through a reinforcing rib (25).
5. A nozzle core structure for use in the production of thick-walled light guide material as claimed in claim 4, wherein: the longitudinal section of the reinforcing rib (25) is triangular, and two triangular sides of the reinforcing rib (25) are correspondingly connected with the outer wall of the flow guide core part (21) and the lower end face of the support rib (23).
6. A spout core structure applied to the production of thick-walled light guide material as claimed in claim 1, wherein: hot mouth main part (1) inner chamber is equipped with step portion (14), water conservancy diversion cover portion (22) crimping is on step portion (14), water conservancy diversion cover portion (22) annular inner wall links into smooth surface with hot mouth main part (1) annular inner wall, runner department (3) inner chamber wall that is located mouth core (2) top.
7. A spout core structure applied to the production of thick-walled light guide material as claimed in claim 1, wherein: the sprue bush (3) comprises an A runner (31) and a B runner (32) which are connected up and down, a necking part (33) with the reduced inner diameter is formed at the joint of the A runner (31) and the B runner (32), and the lower tip of the flow guide core part (21) extends into the necking part (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120840099.1U CN214645524U (en) | 2021-04-23 | 2021-04-23 | Be applied to mouth core structure of production thick wall light guide material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120840099.1U CN214645524U (en) | 2021-04-23 | 2021-04-23 | Be applied to mouth core structure of production thick wall light guide material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214645524U true CN214645524U (en) | 2021-11-09 |
Family
ID=78465936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120840099.1U Active CN214645524U (en) | 2021-04-23 | 2021-04-23 | Be applied to mouth core structure of production thick wall light guide material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214645524U (en) |
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2021
- 2021-04-23 CN CN202120840099.1U patent/CN214645524U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312030 Changfeng Industrial Park, Pingshui Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Hengdao Technology Co.,Ltd. Address before: 312030 Changfeng Industrial Park, Pingshui Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG HENGDAO TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |