CN220261839U - Valve needle sleeve with good wear resistance - Google Patents
Valve needle sleeve with good wear resistance Download PDFInfo
- Publication number
- CN220261839U CN220261839U CN202321504072.0U CN202321504072U CN220261839U CN 220261839 U CN220261839 U CN 220261839U CN 202321504072 U CN202321504072 U CN 202321504072U CN 220261839 U CN220261839 U CN 220261839U
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- layer
- wear
- valve needle
- resistant layer
- top end
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 4
- 229910000599 Cr alloy Inorganic materials 0.000 claims abstract 2
- 239000000788 chromium alloy Substances 0.000 claims abstract 2
- 238000007789 sealing Methods 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910001315 Tool steel Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229910000601 superalloy Inorganic materials 0.000 claims description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model relates to a valve needle sleeve with good wear resistance in the field of hot runners, which comprises a valve needle sleeve, wherein the interior material composition of the valve needle sleeve comprises a base layer, the top end of the base layer is fixedly provided with a high-temperature resistant layer, the top end of the high-temperature resistant layer is fixedly provided with a reinforcing layer, the top end of the reinforcing layer is fixedly provided with a stretching resistant layer, the top end of the stretching resistant layer is fixedly provided with a waterproof layer, and the top end of the waterproof layer is fixedly provided with a wear resistant layer; the wear-resisting layer includes first wear-resisting layer, first wear-resisting layer top fixed mounting has the second wear-resisting layer, second wear-resisting layer top fixed mounting has the third wear-resisting layer, first wear-resisting layer is made by chromium alloy cast iron, through constitute the wear-resisting layer by first wear-resisting layer and second wear-resisting layer, third wear-resisting layer, can improve the wearability of needle cover greatly, reduce wearing and tearing consumption, great improvement needle cover's life guarantees the result of use of needle cover, and use cost is lower, and the practicality is strong.
Description
Technical Field
The utility model relates to the technical field of hot runners, in particular to a valve needle sleeve with good wear resistance.
Background
At present, in the plastic mold industry, a valve needle sleeve used in a needle valve type hot runner mold system is a common valve needle valve with a fixed length, and a body of the valve needle sleeve is in a stepped shape. The step height of the section matched with the runner plate is a fixed height, the valve needle sleeve is pressed on the runner plate through the valve needle sleeve pressing cover, the product quality requirement is higher and higher along with wider application of the valve needle hot runner of the plastic product, and the product surface defect brought by an open hot runner injection molding mode cannot meet the quality requirement of the injection product, so that more injection molds select a controllable needle valve type hot runner system to finish injection molding. The movement of the valve needle in the needle valve type hot runner system is important, so that the requirements of injection molding of the needle valve type hot runner system are met, and the problems of positioning, sealing and the like of the valve needle are important. The valve needle sleeve is an important part directly matched with the valve needle, and in addition, the valve needle sleeve is a connecting part for sealing glue between the valve needle and the flow dividing plate, so that the structure of the valve needle sleeve directly influences injection molding of the system;
the existing needle valve sleeve structure of the needle valve hot runner system has the defects that the existing needle valve sleeve is poor in wear resistance, so that the needle valve sleeve can generate serious wear after being used for a long time, the service life is short, the use effect of the needle valve sleeve is affected, and therefore the needle valve sleeve with good wear resistance is provided.
Disclosure of Invention
According to the valve needle sleeve with good wear resistance, the wear resistance of the valve needle sleeve can be greatly improved, the wear consumption is reduced, the service life of the valve needle sleeve is greatly prolonged, the use effect of the valve needle sleeve is guaranteed, the use cost is low, and the practicability is high.
The technical scheme of the utility model is as follows: the valve needle sleeve with good wear resistance comprises a valve needle sleeve, wherein the inner material composition of the valve needle sleeve comprises a base layer, a high-temperature resistant layer is fixedly arranged at the top end of the base layer, a reinforcing layer is fixedly arranged at the top end of the high-temperature resistant layer, a stretching resistant layer is fixedly arranged at the top end of the reinforcing layer, a waterproof layer is fixedly arranged at the top end of the stretching resistant layer, and a wear-resistant layer is fixedly arranged at the top end of the waterproof layer;
the wear-resisting layer includes first wear-resisting layer, first wear-resisting layer top fixed mounting has the second wear-resisting layer, second wear-resisting layer top fixed mounting has the third wear-resisting layer.
In a further aspect, the first wear layer is made of chrome cast iron, the second wear layer is made of tungsten carbide, and the third wear layer is made of a polymeric ceramic composite material.
In a further aspect, the high temperature resistant layer is made of a nickel-based superalloy and the reinforcing layer is made of tool steel.
In a further technical scheme, the stretching-resistant layer is made of aluminum alloy, and the waterproof layer is made of polyurethane waterproof paint.
In a further technical scheme, the valve needle sleeve outer wall is provided with a sealing gasket, an inserting block is fixedly arranged on the sealing gasket inner wall, a slot is formed in the valve needle sleeve outer wall, and the inserting block is inserted into the slot.
In a further technical scheme, the inner wall of the slot is fixedly provided with a slot pad, and the slot pad is tightly contacted with the outer wall surface of the insert block.
In a further technical scheme, the groove gasket and the sealing gasket are both made of high-temperature-resistant rubber.
The beneficial effects of the utility model are as follows:
1. the wear-resistant layer is composed of the first wear-resistant layer, the second wear-resistant layer and the third wear-resistant layer, so that the wear resistance of the valve needle sleeve can be greatly improved, the wear consumption is reduced, the service life of the valve needle sleeve is greatly prolonged, the use effect of the valve needle sleeve is ensured, the use cost is lower, and the practicability is strong;
2. through setting up sealed pad, can increase the leakproofness of needle cover when the installation is used, guarantee the result of use of needle cover, through setting up inserted block and slot, groove pad, make things convenient for personnel to carry out dismouting to sealed pad and change, guarantee sealed normal use of pad, simple structure, the practicality is strong.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present utility model;
FIG. 2 is a front cross-sectional block diagram of an embodiment of the present utility model;
FIG. 3 is a diagram showing the construction of the internal material composition of the valve needle cover according to the embodiment of the utility model;
FIG. 4 is a block diagram of the internal material composition of the wear layer according to an embodiment of the present utility model;
fig. 5 is an enlarged view of the structure of the portion a in fig. 2 according to the embodiment of the present utility model.
Reference numerals illustrate:
1. a valve needle sleeve; 2. a sealing gasket; 3. inserting blocks; 4. a slot; 5. a slot pad; 101. a base layer; 102. a high temperature resistant layer; 103. a reinforcing layer; 104. a stretch resistant layer; 105. a waterproof layer; 106. a wear-resistant layer; 1061. a first wear layer; 1062. a second wear layer; 1063. and a third wear layer.
Detailed Description
Embodiments of the present utility model are further described below with reference to the accompanying drawings.
Examples:
as shown in fig. 1-5, a valve needle sleeve with good wear resistance comprises a valve needle sleeve 1, wherein the inner material composition of the valve needle sleeve 1 comprises a base layer 101, a high temperature resistant layer 102 is fixedly arranged at the top end of the base layer 101, a reinforcing layer 103 is fixedly arranged at the top end of the high temperature resistant layer 102, a stretching resistant layer 104 is fixedly arranged at the top end of the reinforcing layer 103, a waterproof layer 105 is fixedly arranged at the top end of the stretching resistant layer 104, and a wear resistant layer 106 is fixedly arranged at the top end of the waterproof layer 105;
the wear-resistant layer 106 comprises a first wear-resistant layer 1061, a second wear-resistant layer 1062 is fixedly arranged at the top end of the first wear-resistant layer 1061, and a third wear-resistant layer 1063 is fixedly arranged at the top end of the second wear-resistant layer 1062.
The working principle of the technical scheme is as follows: through constitute wearing layer 106 by first wearing layer 1061 and second wearing layer 1062, third wearing layer 1063, can improve the wearability of needle cover 1 greatly, reduce wearing and tearing consumption, great improvement needle cover 1's life guarantees the result of use of needle cover 1, and use cost is lower, and the practicality is strong.
In another embodiment, as shown in FIG. 4, the first wear layer 1061 is made of chrome cast iron, the second wear layer 1062 is made of tungsten carbide, and the third wear layer 1063 is made of a polymeric ceramic composite material.
In another embodiment, as shown in fig. 3, the refractory layer 102 is made of a nickel-based superalloy 102 and the reinforcement layer 103 is made of tool steel 103.
Through setting up high temperature resistant layer 102, can improve the high temperature resistance of needle cover 1, avoid needle cover 1 to produce the damage when receiving the high temperature, through setting up enhancement layer 103, can improve the intensity of use of needle cover 1, reduce the use limitation.
In another embodiment, as shown in fig. 3, the stretch resistant layer 104 is made of an aluminum alloy and the waterproof layer 105 is made of a polyurethane waterproof paint.
Through setting up stretch-proofing layer 104, can avoid needle cover 1 to receive external force to produce the deformation in the use, guarantee the normal use of needle cover 1, through setting up waterproof layer 105, improve the waterproof nature of needle cover 1.
In another embodiment, as shown in fig. 3, a sealing gasket 2 is arranged on the outer wall of the valve needle sleeve 1, an inserting block 3 is fixedly arranged on the inner wall of the sealing gasket 2, an inserting groove 4 is formed on the outer wall of the valve needle sleeve 1, and the inserting block 3 is inserted into the inserting groove 4.
Through setting up inserted block 3 and slot 4, make things convenient for personnel to carry out dismouting to sealed pad 2 and change, guarantee sealed normal use of pad 2, through setting up sealed pad 2, can increase the leakproofness of needle cover 1 when the installation is used, guarantee the result of use of needle cover 1.
In another embodiment, as shown in fig. 5, the inner wall of the socket 4 is fixedly provided with a slot pad 5, and the slot pad 5 is in close contact with the outer wall surface of the insert block 3.
By providing the groove pad 5, the sealability between the insert block 3 and the slot 4 can be increased, thereby improving the stability of the installation of the gasket 2.
In another embodiment, as shown in fig. 2 and 5, the groove pad 5 and the sealing pad 2 are made of high temperature resistant rubber.
By making both the gasket 5 and the gasket 2 of high temperature resistant rubber, the service lives of the gasket 5 and the gasket 2 can be improved.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (7)
1. The utility model provides a needle cover that wearability is good, includes needle cover (1), its characterized in that: the valve needle sleeve (1) is characterized in that the inner material composition of the valve needle sleeve comprises a base layer (101), a high-temperature-resistant layer (102) is fixedly arranged at the top end of the base layer (101), a reinforcing layer (103) is fixedly arranged at the top end of the high-temperature-resistant layer (102), a stretching-resistant layer (104) is fixedly arranged at the top end of the reinforcing layer (103), a waterproof layer (105) is fixedly arranged at the top end of the stretching-resistant layer (104), and a wear-resistant layer (106) is fixedly arranged at the top end of the waterproof layer (105);
the wear-resistant layer (106) comprises a first wear-resistant layer (1061), a second wear-resistant layer (1062) is fixedly arranged at the top end of the first wear-resistant layer (1061), and a third wear-resistant layer (1063) is fixedly arranged at the top end of the second wear-resistant layer (1062).
2. A valve needle cover with good wear resistance according to claim 1, characterized in that: the first wear layer (1061) is made of chromium alloy cast iron, the second wear layer (1062) is made of tungsten carbide, and the third wear layer (1063) is made of a polymeric ceramic composite material.
3. A valve needle cover with good wear resistance according to claim 1, characterized in that: the high temperature resistant layer (102) is made of a nickel-based superalloy and the reinforcing layer (103) is made of tool steel.
4. A valve needle cover with good wear resistance according to claim 1, characterized in that: the stretch-proof layer (104) is made of aluminum alloy, and the waterproof layer (105) is made of polyurethane waterproof paint.
5. A valve needle cover with good wear resistance as claimed in claim 4, wherein: the valve needle sleeve is characterized in that a sealing gasket (2) is arranged on the outer wall of the valve needle sleeve (1), an inserting block (3) is fixedly arranged on the inner wall of the sealing gasket (2), a slot (4) is formed in the outer wall of the valve needle sleeve (1), and the inserting block (3) is inserted into the slot (4).
6. The valve needle cover with good wear resistance according to claim 5, wherein: the inner wall of the slot (4) is fixedly provided with a slot pad (5), and the slot pad (5) is tightly contacted with the outer wall surface of the plug block (3).
7. The valve needle cover with good wear resistance according to claim 6, wherein: the groove pad (5) and the sealing pad (2) are made of high-temperature resistant rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321504072.0U CN220261839U (en) | 2023-06-14 | 2023-06-14 | Valve needle sleeve with good wear resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321504072.0U CN220261839U (en) | 2023-06-14 | 2023-06-14 | Valve needle sleeve with good wear resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220261839U true CN220261839U (en) | 2023-12-29 |
Family
ID=89318787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321504072.0U Active CN220261839U (en) | 2023-06-14 | 2023-06-14 | Valve needle sleeve with good wear resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220261839U (en) |
-
2023
- 2023-06-14 CN CN202321504072.0U patent/CN220261839U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |