CN202668981U - Expansion mold - Google Patents
Expansion mold Download PDFInfo
- Publication number
- CN202668981U CN202668981U CN 201220315692 CN201220315692U CN202668981U CN 202668981 U CN202668981 U CN 202668981U CN 201220315692 CN201220315692 CN 201220315692 CN 201220315692 U CN201220315692 U CN 201220315692U CN 202668981 U CN202668981 U CN 202668981U
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- CN
- China
- Prior art keywords
- hole
- mould mouth
- mold
- sizing
- groove
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- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses an expansion mold which comprises a mold nozzle and an expansion device, wherein the mold nozzle is provided with a mold nozzle hole; the expansion device is provided with a sizing pipe, and the sizing pipe is provided with a sizing hole; the mold nozzle and the sizing pipe has a through connection, and the mold nozzle hole and the sizing hole are communicated; and the mold nozzle is provided with at least one groove communicated with the mold nozzle hole on the wall of the mold nozzle hole. According to the expansion mold disclosed by the utility model, because the mold nozzle is provided with the groove on the wall of the mold nozzle hole, when a thermal shrinkage pipe enters the sizing pipe through the mold hole of the mold pipe, air flows can enter the sizing hole of the sizing pipe through the groove to play a role of balancing the air pressure in the mold nozzle hole and the sizing hole so as to prevent the thermal shrinkage pipe from swinging back and forth in the mold nozzle hole, so that friction generated by the thermal shrinkage pipe and the mold nozzle hole can be avoided so as to avoid the abrasion of the thermal shrinkage pipe, improve the product quality, reduce noise generated by the friction of the thermal shrinkage pipe and the inner wall of the mold nozzle hole and provide a comfortable working environment.
Description
Technical field
The utility model relates to a kind of mould, relates in particular to a kind of dilatation mold.
Background technology
At present, existing expanding thermal shrinkage tube mould generally comprises mould mouth and extension fixture, and extension fixture comprises sizing tube, cooling chamber, vacuum chamber etc., and the mould mouth is communicated with sizing tube, the aperture of mould mouth is less than the caliber of sizing tube, and heat-shrink tube enters sizing tube from the mould mouth and expands.
Yet, when heat-shrink tube enters sizing tube by the mould mouth, because the aperture of mould mouth is less, heat-shrink tube can swing back and forth in mould mouth hole during fast by the mould mouth, this not only makes heat-shrink tube produce wearing and tearing so that heat-shrink tube and mould mouth hole wall produce friction, has reduced product quality; And heat-shrink tube swing meeting in the mould mouth brings air-flow in the sizing tube into, and this can make air pressure in the sizing tube uneven and reduce the expansion quality; Moreover air pressure is uneven to be rocked to friction, air pressure inequality again to the poor circulation that swings further so that heat-shrink tube swings thereby form in the mould mouth, in this process, can produce larger noise owing to the swing of heat-shrink tube and with the friction of mould mouth hole wall.
The utility model content
The purpose of this utility model is to provide a kind of dilatation mold that heat-shrink tube and mould mouth hole wall produce friction, avoid heat-shrink tube to produce wearing and tearing, improve the quality of products that reduces.
For achieving the above object, the utility model provides a kind of dilatation mold, comprise mould mouth and extension fixture, the mould mouth has mould mouth hole, extension fixture has sizing tube, and sizing tube has metering hole, and the mould mouth is connected connection with sizing tube, mould mouth hole and metering hole are communicated with, and described mould mouth offers the groove at least one connection mould mouth hole in mould mouth hole wall.
The distribution of groove and quantity comprise following several situation:
The first, groove have even number (for example 2,4,6,8 etc.), and this even number groove is with the central shaft axial symmetry in mould mouth hole, general preferably get 4,6 or 8.
The second, groove have odd number (for example 1,3,5,7 etc.), and this odd number groove to be being spacedly distributed on the hole wall in mould mouth hole, general preferably get 3,5 or 7.
Further, groove width is preferably 0.1～5mm.
As mentioned above, the utility model dilatation mold is because the mould mouth offers the groove at least one connection mould mouth hole in mould mouth hole wall, when the mould mouth hole of heat-shrink tube by the mould mouth enters sizing tube, air-flow can enter by groove the metering hole of sizing tube, thereby play the effect of the air pressure in equilibrium model mouth hole and the metering hole, and then avoid heat-shrink tube in mould mouth hole, to swing back and forth, this can be avoided heat-shrink tube and mould mouth hole wall to produce friction, avoid heat-shrink tube to produce wearing and tearing, improve the quality of products and rate of expansion, the noise that reduction produces because of wall friction in heat-shrink tube and the mould mouth hole, thus comfortable working environment is provided; Moreover heat-shrink tube directly contacts with mould mouth hole wall is non-, and temperature can not descend and is in elastomeric state when heat-shrink tube entered sizing tube, can stablize expansion.
Description of drawings
Fig. 1 is the perspective view of the utility model dilatation mold.
Each description of reference numerals is as follows among the figure:
The specific embodiment
By describing technology contents of the present utility model, structural feature in detail, being realized purpose and effect, below in conjunction with embodiment and cooperate accompanying drawing to give in detail explanation.
See also Fig. 1, the utility model kind dilatation mold, comprise mould mouth 10 and extension fixture (not indicating), mould mouth 10 has mould mouth hole 11, extension fixture has sizing tube 20, and sizing tube 20 has metering hole 21, and mould mouth 10 is connected with sizing tube straight-through the connection, mould mouth hole 11 and metering hole 21 are communicated with, and mould mouth 10 offers the groove 12 at least one connection mould mouth hole 11 in mould mouth hole wall.
The distribution of groove 12 and quantity comprise following several situation:
The first, groove has even number (for example 2,4,6,8 etc.), this even number groove is with the central shaft axial symmetry in mould mouth hole 11, guarantee the mutual balance of air-flow of even number groove, and then so that the mould mouth hole 11 of heat-shrink tube by mould mouth 10 when entering sizing tube, air-flow can enter by groove the metering hole 21 of sizing tube 20, thereby play the effect of the air pressure in equilibrium model mouth hole 11 and the metering hole 21, and then avoid heat-shrink tube to swing back and forth in mould mouth hole 11, this can be avoided heat-shrink tube and mould mouth hole wall to produce friction.The quantity of groove is general preferred gets 4,6 or 8, and in the present embodiment, the quantity of groove 12 is two.
The second, groove have odd number (for example 1,3,5,7 etc.), and this odd number groove is guaranteed the mutual balance of air-flow of odd number groove to be spacedly distributed on the hole wall in mould mouth hole 11.The quantity of groove is general preferred gets 3,5 or 7.
Since the difference in the aperture in mould mouth hole 11, the desirable different quantity of the quantity of groove 12.
Further, groove 12 width are preferably 0.1～5mm.
In sum, the utility model dilatation mold is because mould mouth 10 offers the groove 12 at least one connection mould mouth hole 11 in mould mouth hole wall, when the mould mouth hole 11 of heat-shrink tube by mould mouth 10 enters sizing tube, air-flow can enter by groove 12 metering hole 21 of sizing tube 20, thereby play the effect of the air pressure in equilibrium model mouth hole 11 and the metering hole 21, and then avoid heat-shrink tube in mould mouth hole 11, to swing back and forth, this can be avoided heat-shrink tube and mould mouth hole wall to produce friction, avoid heat-shrink tube to produce wearing and tearing, improve the quality of products, the noise that reduction produces because of wall friction in heat-shrink tube and the mould mouth hole, thus comfortable working environment is provided.
The utility model is not limited to the above-mentioned specific embodiment, and those skilled in the art that also can make multiple variation accordingly, but any and the utility model are equal to or similar variation all should be encompassed in the scope of the utility model claim.
Claims (6)
1. dilatation mold, comprise mould mouth and extension fixture, the mould mouth has mould mouth hole, extension fixture has sizing tube, sizing tube has metering hole, the mould mouth is connected connection with sizing tube, mould mouth hole and metering hole are communicated with, and it is characterized in that: described mould mouth offers the groove at least one connection mould mouth hole in mould mouth hole wall.
2. dilatation mold as claimed in claim 1, it is characterized in that: described groove has even number, and this even number groove is with the central shaft axial symmetry in described mould mouth hole.
3. dilatation mold as claimed in claim 2, it is characterized in that: the quantity of described groove is preferably 4,6 or 8.
4. dilatation mold as claimed in claim 1, it is characterized in that: described groove has odd number, and this odd number groove is to be spacedly distributed on the hole wall in mould mouth hole.
5. dilatation mold as claimed in claim 4, it is characterized in that: the quantity of described groove is preferably 3,5 or 7.
6. such as claim 1,2,3,4 or 5 described dilatation molds, it is characterized in that: described groove width is 0.1～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315692 CN202668981U (en) | 2012-06-20 | 2012-06-20 | Expansion mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315692 CN202668981U (en) | 2012-06-20 | 2012-06-20 | Expansion mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202668981U true CN202668981U (en) | 2013-01-16 |
Family
ID=47489912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220315692 Expired - Lifetime CN202668981U (en) | 2012-06-20 | 2012-06-20 | Expansion mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202668981U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744875A (en) * | 2012-06-20 | 2012-10-24 | 深圳市沃尔核材股份有限公司 | Expansion mold |
| CN106514999A (en) * | 2016-12-30 | 2017-03-22 | 上海长园电子材料有限公司 | Expansion mold nozzle and expansion device |
-
2012
- 2012-06-20 CN CN 201220315692 patent/CN202668981U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744875A (en) * | 2012-06-20 | 2012-10-24 | 深圳市沃尔核材股份有限公司 | Expansion mold |
| CN106514999A (en) * | 2016-12-30 | 2017-03-22 | 上海长园电子材料有限公司 | Expansion mold nozzle and expansion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |