CN219338509U - Improved core rod - Google Patents
Improved core rod Download PDFInfo
- Publication number
- CN219338509U CN219338509U CN202320014728.4U CN202320014728U CN219338509U CN 219338509 U CN219338509 U CN 219338509U CN 202320014728 U CN202320014728 U CN 202320014728U CN 219338509 U CN219338509 U CN 219338509U
- Authority
- CN
- China
- Prior art keywords
- annular plate
- heat preservation
- screw thread
- sleeve
- thread
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- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000004321 preservation Methods 0.000 claims abstract description 32
- 239000004698 Polyethylene Substances 0.000 abstract description 23
- -1 polyethylene Polymers 0.000 abstract description 23
- 229920000573 polyethylene Polymers 0.000 abstract description 23
- 238000000465 moulding Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 18
- 230000001681 protective effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000326 ultraviolet stabilizing agent Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides an improved type mandrel, which relates to the technical field of die production and comprises a die, wherein one side of the die is connected with a liquid inlet pipe, one side of the die is connected with a liquid outlet pipe, a heat preservation cavity is formed in the die, the inner wall of the die is connected with an annular plate, the annular plate is connected with a tail end cover, one side of the annular plate is connected with a cone head, the inner side of the annular plate is provided with a sleeve, an annular connecting plate is connected between the annular plate and the sleeve, and a forming cavity is formed between the sleeve and the annular plate. According to the utility model, after flowing polyethylene enters the molding cavity, the heat preservation liquid is injected into the heat preservation cavity from the liquid inlet pipe, and after heat preservation is finished, the heat preservation liquid is discharged from the liquid outlet pipe, so that the heat preservation effect is improved, and the product molding rate is increased.
Description
Technical Field
The utility model relates to the technical field of die production, in particular to an improved type core rod.
Background
The polyethylene outer protective tube is made of high-density polyethylene material, has extremely high mechanical strength and excellent corrosion resistance, and can protect the tube from being damaged by external factors in the transportation, installation and use processes.
When the polyethylene outer protective tube is manufactured, an antioxidant, an ultraviolet stabilizer, carbon black and the like are added. The polyethylene outer protective tube is formed by extrusion molding of polyethylene resin, antioxidant, ultraviolet stabilizer, carbon black and the like by a hot pressing method, namely, the polyethylene is enabled to be in a flowing state by a heating method, and then the polyethylene outer protective tube is enabled to pass through an extrusion die under the action of a certain pressure, and a continuous finished product is obtained after shaping. The mouth die and the core rod are key components of the extrusion molding machine head of the polyethylene outer protective tube. To maintain a proper temperature, the extruder head needs to be heated. However, in the prior art, most of common machine heads are heated by wrapping heating plates outside the die, and the method can meet the requirements in a certain range, but has poor heat preservation effect on the core rod, and even leads to scrapping of products when the temperature is too low. Therefore, an improved mandrel is provided, which gives heat preservation operation during molding of the polyethylene outer protective tube and improves the molding rate of the product.
Disclosure of Invention
The utility model aims to solve the defects existing in the technical field of die production. Most of the existing machine heads are heated by wrapping heating plates outside the die, and the method can meet the requirements in a certain range, but has poor heat preservation effect on the core rod, and even leads to scrapping of products when the temperature is too low.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an improved generation plug, includes the bush, bush one side is connected with the feed liquor pipe, bush one side is connected with the drain pipe, the inside heat preservation chamber of having seted up of bush, the bush inner wall is connected with the annular plate, annular plate one side is connected with screw thread first, one side that screw thread first was kept away from to the annular plate is connected with screw thread first, screw thread first outer wall connection has the tail end lid, screw thread groove first has been seted up to the tail end lid upside, screw thread first outer wall connection has the cone head, screw thread groove second has been seted up to the cone head downside, the annular plate inboard is provided with the sleeve.
As a preferred embodiment, the liquid inlet pipe and the liquid outlet pipe are communicated with the heat preservation cavity.
As a preferred embodiment, valves are arranged on the liquid inlet pipe and the liquid outlet pipe.
As a preferred embodiment, the first thread head is engaged with the first thread groove, and the second thread head is engaged with the second thread groove.
As a preferred embodiment, an annular connecting plate is connected between the annular plate and the sleeve, and the annular connecting plate is located on one side close to the conical head.
As a preferred embodiment, a molding cavity is formed between the sleeve and the annular plate.
Compared with the prior art, the utility model has the advantages and positive effects that:
according to the utility model, the liquid inlet pipe and the liquid outlet pipe are both communicated with the heat preservation cavity, heat preservation liquid is injected into the heat preservation cavity through the liquid inlet pipe, the heat preservation liquid is discharged from the liquid outlet pipe after heat preservation is finished, valves are arranged on the liquid inlet pipe and the liquid outlet pipe, the valves can control the inlet and outlet of the heat preservation liquid, the first thread head is matched with the first thread groove, the tail end cover can be connected with the annular plate through the first thread head and the first thread groove, the second thread head is matched with the second thread groove, the cone head can be connected with the second thread groove and the annular plate through the second thread head, an annular connecting plate is connected between the annular plate and the sleeve, the annular connecting plate can provide supporting force for the sleeve, and the annular connecting plate is positioned on one side close to the cone head, so that the annular connecting plate is prevented from affecting the molding of the polyethylene outer protection pipe.
Drawings
FIG. 1 is a schematic view of the improved mandrel provided by the utility model.
FIG. 2 is a cross-sectional view of a die of the present utility model.
FIG. 3 is a schematic view of the cone and annular plate structure of the present utility model.
Fig. 4 is a cross-sectional view of the annular plate of the present utility model.
Legend description:
1. a die; 11. a liquid inlet pipe; 12. a liquid outlet pipe; 13. a heat preservation cavity; 14. a first heating cavity;
2. a tail end cover; 21. a first thread groove;
3. a conical head; 31. a thread groove II;
4. an annular plate; 41. a first thread head; 42. a second thread head;
5. a sleeve; 51. a heating cavity II;
6. a molding cavity;
7. an annular connecting plate.
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
As shown in fig. 1 to 4, the present utility model provides a technical solution: the utility model provides an improved generation plug, including bush 1, bush 1 one side is connected with feed liquor pipe 11, bush 1 one side is connected with drain pipe 12, all install the valve on feed liquor pipe 11 and the drain pipe 12, heat preservation chamber 13 has been seted up to bush 1 inside, feed liquor pipe 11 and drain pipe 12 all communicate with heat preservation chamber 13, bush 1 inner wall is connected with annular plate 4, annular plate 4 one side is connected with screw thread first 41, screw thread first 41 and screw thread groove first 21 agree with, one side that screw thread first 41 was kept away from to annular plate 4 is connected with screw thread first second 42, screw thread first second 42 and screw thread groove second 31 agree with, screw thread first 41 outer wall connection has tail end lid 2, screw thread groove first 21 has been seted up to tail end lid 2 upside, screw thread first second 42 outer wall connection has cone head 3, screw thread second 31 has been seted up to cone 3 downside, annular plate 4 inboard is provided with sleeve 5, be formed with into die cavity 6 between sleeve 5 and the annular plate 4, be connected with annular connecting plate 7 between annular connecting plate 4 and the sleeve 5, annular connecting plate 7 is located one side that is close to cone head 3.
In this embodiment, the first thread 41 is engaged with the first thread 21, and the tail end cap 2 may be connected to the annular plate 4 via the first thread 41 and the first thread 21. The second thread head 42 is engaged with the second thread groove 31, and the cone head 3 can be connected with the annular plate 4 through the second thread head 42 and the second thread groove 31. An annular connecting plate 7 is connected between the annular plate 4 and the sleeve 5, the annular connecting plate 7 can provide supporting force for the sleeve 5, and the annular connecting plate 7 is positioned on one side close to the conical head 3 to prevent the annular connecting plate 7 from affecting the molding of the polyethylene outer protective tube. Valves are arranged on the liquid inlet pipe 11 and the liquid outlet pipe 12, and the valves can control the inlet and outlet of the heat preservation liquid. When the polyethylene is molded, a valve on the liquid inlet pipe 11 is opened, heat preservation liquid is injected into the heat preservation cavity 13 through the liquid inlet pipe 11, and heat dissipation is reduced when the polyethylene outer protective pipe is molded. And after the heat preservation is finished, a valve on the liquid outlet pipe 12 is opened, heat preservation liquid is discharged from the liquid outlet pipe 12, and the molding efficiency of the polyethylene outer protective pipe is improved.
Example 2
As shown in fig. 2 and 3, a first heating cavity 14 is formed at the lower side of the die 1, a heating rod can be inserted into the first heating cavity 14, the upper surface of the tail end cover 2 covers the opening of the first heating cavity 14 when the tail end cover 2 is in threaded connection with the annular plate 4, a second heating cavity 51 is formed at the lower side of the sleeve 5, and the heating rod can be inserted into the second heating cavity 51.
In this embodiment, the heating rods are inserted into the first heating cavity 14 and the second heating cavity 51, so that heat can be provided for the polyethylene outer protection tube at both the inner and outer parts of the forming cavity 6, so that the polyethylene outer protection tube is uniformly heated, and the forming efficiency and the quality of the polyethylene outer protection tube are improved.
Working principle:
as shown in fig. 1-4, the heating rods are inserted into the first heating cavity 14 and the second heating cavity 51, so that heat can be provided for the polyethylene outer protection tube at the inner part and the outer part of the forming cavity 6, the polyethylene outer protection tube can be uniformly heated, and the forming efficiency and the quality of the polyethylene outer protection tube can be improved. The thread head 41 is engaged with the thread groove 21, and the tail end cover 2 can be connected with the annular plate 4 through the thread head 41 and the thread groove 21. The second thread head 42 is engaged with the second thread groove 31, and the cone head 3 can be connected with the annular plate 4 through the second thread head 42 and the second thread groove 31. An annular connecting plate 7 is connected between the annular plate 4 and the sleeve 5, the annular connecting plate 7 can provide supporting force for the sleeve 5, and the annular connecting plate 7 is positioned on one side close to the conical head 3 to prevent the annular connecting plate 7 from affecting the molding of the polyethylene outer protective tube. Valves are arranged on the liquid inlet pipe 11 and the liquid outlet pipe 12, and the valves can control the inlet and outlet of the heat preservation liquid. When the polyethylene is molded, a valve on the liquid inlet pipe 11 is opened, heat preservation liquid is injected into the heat preservation cavity 13 through the liquid inlet pipe 11, and heat dissipation is reduced when the polyethylene outer protective pipe is molded. And after the heat preservation is finished, a valve on the liquid outlet pipe 12 is opened, heat preservation liquid is discharged from the liquid outlet pipe 12, and the molding efficiency of the polyethylene outer protective pipe is improved.
The drawings of the present utility model are merely to show specific structural positions to aid understanding, and are not limited to scale dimensions, specifications, and the like.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (6)
1. The utility model provides an improved generation plug, its characterized in that, including bush (1), bush (1) one side is connected with feed liquor pipe (11), bush (1) one side is connected with drain pipe (12), heat preservation chamber (13) have been seted up to bush (1) inside, bush (1) inner wall is connected with annular plate (4), annular plate (4) one side is connected with screw thread first (41), one side that screw thread first (41) was kept away from to annular plate (4) is connected with screw thread first (42), screw thread first (41) outer wall connection has tail end lid (2), screw thread first (21) have been seted up to tail end lid (2) upside, screw thread first second (42) outer wall connection has conical head (3), screw thread second (31) have been seted up to conical head (3) downside, annular plate (4) inboard is provided with sleeve (5).
2. An improved mandrel as claimed in claim 1, wherein: the liquid inlet pipe (11) and the liquid outlet pipe (12) are communicated with the heat preservation cavity (13).
3. An improved mandrel as claimed in claim 1, wherein: valves are arranged on the liquid inlet pipe (11) and the liquid outlet pipe (12).
4. An improved mandrel as claimed in claim 1, wherein: the first thread head (41) is matched with the first thread groove (21), and the second thread head (42) is matched with the second thread groove (31).
5. An improved mandrel as claimed in claim 1, wherein: an annular connecting plate (7) is connected between the annular plate (4) and the sleeve (5), and the annular connecting plate (7) is positioned on one side close to the conical head (3).
6. An improved mandrel as claimed in claim 1, wherein: a forming cavity (6) is formed between the sleeve (5) and the annular plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320014728.4U CN219338509U (en) | 2023-01-05 | 2023-01-05 | Improved core rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320014728.4U CN219338509U (en) | 2023-01-05 | 2023-01-05 | Improved core rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219338509U true CN219338509U (en) | 2023-07-14 |
Family
ID=87105776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320014728.4U Active CN219338509U (en) | 2023-01-05 | 2023-01-05 | Improved core rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219338509U (en) |
-
2023
- 2023-01-05 CN CN202320014728.4U patent/CN219338509U/en active Active
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