CN202922822U - Durable pen mould structure with high precision - Google Patents
Durable pen mould structure with high precision Download PDFInfo
- Publication number
- CN202922822U CN202922822U CN 201220684537 CN201220684537U CN202922822U CN 202922822 U CN202922822 U CN 202922822U CN 201220684537 CN201220684537 CN 201220684537 CN 201220684537 U CN201220684537 U CN 201220684537U CN 202922822 U CN202922822 U CN 202922822U
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- China
- Prior art keywords
- cavity
- end surface
- groove
- mould structure
- durable
- Prior art date
- 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 - Fee Related
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Abstract
The utility model relates to a durable pen mould structure with high precision. According to the technical scheme, the durable pen mould structure comprises an upper template and a lower template, wherein the upper template is internally provided with an upper cavity, and the lower template is internally provided with a lower cavity. The durable pen mould structure is characterized in that the upper end surface of the lower cavity is provided width a raised block in the shape of a circular truncated cone, the lower end surface of the upper cavity is provided with a groove in the shape of a reversed circular truncated cone, and the lower end surface of the upper cavity is matched with the upper end surface of the lower cavity. The outer edge of the raised block on the upper end surface of the lower cavity is provided with a first chamfer, and the edge of the groove on the lower end surface of the upper cavity is provided with a second chamfer. Because the raised block is matched with the groove, the contact surfaces of the upper cavity and the lower cavity can be in taper fit, the coaxiality of the cavities can be increased greatly, the precision of a moulded piece can be improved further, and the service life of a pen mould can be prolonged.
Description
Technical field
The utility model belongs to a mould, is specifically related to a kind ofly can improve precision and durable pen mode structure.
Background technology
Of the prior art mode structure, at work, as shown in Figure 1, the contact-making surface of its upper impression 3 and lower impressions 4 is plane contact, and institute's production positioning accuracy is low, and through mould modification displacement after the use of some months, produce plastic and have the eccentric situation of upper-lower section, product occurs crooked, and the problems such as injection moulding demoulding difficulty will cause mould to be scrapped at last, invisible working life that shortens mould.
Summary of the invention
The utility model provides a kind of and can improve precision and durable pen mode structure in order to solve the technical problem of mentioning in background technology.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind ofly can improve precision and durable pen mode structure, comprise cope match-plate pattern and lower bolster, be provided with upper impression in described cope match-plate pattern, be provided with lower impressions in described lower bolster, it is characterized in that: the upper surface of described lower impressions is a round platform projection, described upper impression lower surface is the groove of reverse circular platform type, and the lower surface of described upper impression and the upper surface of lower impressions are suitable.
The edge of the round platform projection of described lower impressions upper surface is provided with the first chamfering, and the groove edge of described upper impression lower surface is provided with the second chamfering.
After adopting above technical scheme: due to after round platform projection and groove suitable, the contact-making surface that makes lower impressions is taper fit, like this axiality of die cavity can increase substantially, and has further improved the precision of plastic, thereby has extended the mold use life-span.
Description of drawings
Fig. 1 is the structure cutaway view of die cavity contact-making surface in prior art;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the partial enlarged drawing of A section in the utility model Fig. 2.
The specific embodiment
Referring to Fig. 2, a kind ofly can improve precision and durable pen mode structure, comprise cope match-plate pattern 1 and lower bolster 2, be provided with upper impression 3 in described cope match-plate pattern 1, be provided with lower impressions 4 in described lower bolster 2, the upper surface of lower impressions 4 is a round platform projection 5, and described upper impression 3 lower surfaces are the groove 6 of reverse circular platform type, and the upper surface of the lower surface of described upper impression 3 and lower impressions 4 is suitable.The edge of the round platform projection 5 of lower impressions 4 upper surfaces is provided with the first chamfering 7, and groove 6 edges of described upper impression 3 lower surfaces are provided with the second chamfering 8.
The improvements of the corresponding prior art of the utility model: due to after round platform projection and groove suitable, the contact-making surface that makes lower impressions is taper fit, like this axiality of die cavity can increase substantially, and has further improved the precision of plastic, thereby has extended the mold use life-span.
Claims (2)
1. one kind can be improved precision and durable pen mode structure, comprise cope match-plate pattern (1) and lower bolster (2), be provided with upper impression (3) in described cope match-plate pattern (1), be provided with lower impressions (4) in described lower bolster (2), it is characterized in that: the upper surface of described lower impressions (4) is a round platform projection (5), described upper impression (3) lower surface is the groove (6) of reverse circular platform type, and the upper surface of the lower surface of described upper impression (3) and lower impressions (4) is suitable.
2. according to claim 1ly a kind ofly can improve precision and durable pen mode structure, it is characterized in that: the edge of the round platform projection (5) of described lower impressions (4) upper surface is provided with the first chamfering (7), and groove (6) edge of described upper impression (3) lower surface is provided with the second chamfering (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684537 CN202922822U (en) | 2012-11-29 | 2012-11-29 | Durable pen mould structure with high precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684537 CN202922822U (en) | 2012-11-29 | 2012-11-29 | Durable pen mould structure with high precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202922822U true CN202922822U (en) | 2013-05-08 |
Family
ID=48212816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220684537 Expired - Fee Related CN202922822U (en) | 2012-11-29 | 2012-11-29 | Durable pen mould structure with high precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202922822U (en) |
-
2012
- 2012-11-29 CN CN 201220684537 patent/CN202922822U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20151129 |