CN203344257U - Roller injection moulding mould - Google Patents
Roller injection moulding mould Download PDFInfo
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- CN203344257U CN203344257U CN 201320294341 CN201320294341U CN203344257U CN 203344257 U CN203344257 U CN 203344257U CN 201320294341 CN201320294341 CN 201320294341 CN 201320294341 U CN201320294341 U CN 201320294341U CN 203344257 U CN203344257 U CN 203344257U
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- pit
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- mould
- plane
- injection moulding
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Abstract
The utility model relates to a roller injection moulding mould. The roller injection moulding mould comprises a fixed mould and a movable mould, wherein the fixed mould is provided with a first pit and a second pit which are inwards sunk; the first pit comprises a first inclined plane; the second pit is formed in the bottom of the first pit; the side surface of the second pit is connected with the end point of the first inclined plane; the movable mould comprises a protruding part which enters the first pit when the mould is closed; the protruding part is provided with a third pit; the third pit comprises a second inclined plane; the diameter of the second inclined plane gradually decreases in the direction of entering the movable mould; the second inclined plane is symmetrical to the first inclined plane; the movable mould is also provided with a fourth pit; and the movable mould further comprises a first bulge arranged at the center of the bottom surface of the fourth pit. The roller injection moulding mould has the benefits of relatively low cost and relatively high efficiency.
Description
Technical field
The utility model relates to mould applications, more particularly, relates to a kind of mould for the roller injection moulding.
Background technology
Roller is the parts that a kind of industrial equipment is commonly used.Particularly, in equipment for producing circuit board, the use of roller is more general.For example, for charging, make the circuit board made adding on process equipment mobile etc.Usually, roller is obtained by the mold injection by prior making.Along with the precision of industrial equipment is more and more higher, the requirement of above-mentioned rollers is also become to also more and more higher, for example, usually can require this product spue line can not be arranged, depression occurred due to depanning etc. can not be arranged.In existing injecting products, these defects are unescapable basically.In the prior art, usually adopt the method for secondary operations to eliminate above-mentioned contradiction.For example, adopt the method (normally car or mill) of machining to eliminate above-mentioned spue line.But this method is owing to adopting secondary operations, its cost is higher, efficiency is lower.
The utility model content
The technical problems to be solved in the utility model is, higher for the above-mentioned cost of prior art, efficiency is lower, need the defect of secondary operations, and a kind of one-shot forming, cost is lower, efficiency the is higher mould for the roller injection moulding are provided.
The utility model solves the technical scheme that its technical problem adopts: construct a kind of mould for the roller injection moulding, comprise fixed half and moving half, described cover half is provided with the first pit and the second pit caved in; Described the first pit comprise by land area to extend in described cover half, columniform side and being extended and the first inclined-plane that its diameter diminishes gradually to described cover half is inner near the inner end of cover half by described side; Described the second pit is arranged on the bottom of described the first pit, and described the second pit is that the side of described the second pit is connected with the end points on described the first inclined-plane to inner extend cylindrical of described cover half; Described dynamic model enters the protuberance of described the first pit while being included in matched moulds, the outstanding end face of described protuberance is provided with the 3rd pit, described the 3rd pit comprises by described protuberance top edge and starting to inner the second inclined-plane extended of described dynamic model, the diameter on described the second inclined-plane along enter that described dynamic model internal direction diminishes gradually and with described the first inclined-plane symmetry; Described dynamic model also is provided with the 4th pit, and described the 4th pit is cylindrical, and its side is connected with the end of described the first inclined-plane near described dynamic model inside; Described dynamic model also comprises the first projection that is arranged on described the 4th pit bottom center; Described first a protruding end is fixedly connected on described the 4th pit bottom surface, and the other end enters described the second pit and contacts with its bottom surface when matched moulds.
Further, described the first inclined-plane is connected by the first cambered surface with the side of described the first pit; The end face of described protuberance is connected by the second cambered surface with described the second inclined-plane, and the angle of described the first cambered surface and the second cambered surface is symmetrical.
Further, discharging opening is arranged on described cover half, and its position is arranged on the junction of described the first cambered surface and described the first pit side.
Further, the depanning thimble is arranged on described the second pit bottom surface the position of described the first projection while avoiding matched moulds.
Further, described depanning thimble and product contact-making surface be shaped as an annulus, the excircle diameter of described annulus is less than described the second pit diameter, its inner periphery diameter is more than or equal to described the first projection diameter.
Further, described depanning thimble and product contact-making surface be shaped as an annulus with a plurality of breach, the excircle diameter of described annulus is less than described the second pit diameter, its inner periphery diameter is more than or equal to described the first projection diameter.
Further, described depanning thimble comprises 2, is separately positioned on position symmetrical on described the second pit bottom surface; The contact-making surface of each thimble and described product is the part of annulus, is less than 1/2 annulus; The excircle diameter of described annulus is less than described the second pit diameter, and its inner periphery diameter is more than or equal to described the first projection diameter.
Implement the mould for the roller injection moulding of the present utility model, there is following beneficial effect: because this mould is not the mid portion at product by the design of the land area of fixed half and moving half, but land area is designed on the cambered surface tie point of roller; Simultaneously, in the bosom of cover half die cavity, adopt large-area thimble, both there is no spue line after making this product generate, depression also can not occur because of thimble.So it does not need secondary operations.Therefore, its cost is lower, efficiency is higher.
The accompanying drawing explanation
Cross-sectional view when Fig. 1 is the utility model for this mould matched moulds of mould embodiment of roller injection moulding;
Fixed half and moving half structural representation when Fig. 2 is described embodiment die sinking.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further.
As shown in Figure 1, the mould embodiment at the utility model for the roller injection moulding, this mould comprises cover half 1 and dynamic model 2, this cover half 1 is provided with the first pit 11 and the second pit 14 caved in; The first pit 11 comprises by land area and extending and the first inclined-plane 13 that its diameter diminishes gradually to cover half 1 is inner near the inner end of cover half 1 to inner that extend, the 12He You side, columniform side 12 of cover half 1 again; The second pit 14 is arranged on the bottom of the first pit 11, being shaped as to inner extend cylindrical of cover half 1 of the second pit 12, and the side 15 of the second pit is connected with the end points on the first inclined-plane 13; And dynamic model 2 enters the protuberance 21 of the first pit 11 while being included in matched moulds, the outstanding end face of protuberance 21 is provided with the 3rd pit 24, the 3rd pit 24 comprises that one starts diameter to inner 23, the second inclined-planes 23, the second inclined-plane that extend of dynamic model 2 by protuberance 21 top edge dynamic model 2 internal direction diminish gradually and its shape (being its surperficial curved surface) and the first inclined-plane 13 symmetries along entering; It is cylindrical that dynamic model 2 also is provided with being shaped as of the 4th pit 24, the four pits 24, and its side is connected with the end of the second inclined-plane 23 near dynamic model 2 inside; Dynamic model 2 also comprises the first projection 25 that is arranged on the 4th pit 24 bottom center; The first projection 25 1 ends are fixedly connected on the bottom surface of the 4th pit 24, and the other end enters the second pit 12 and contacts with its bottom surface when matched moulds.
In the present embodiment, in fact, the roller that injection moulding obtains comprise columniform axle sleeve (25 being formed by above-mentioned the first projection) and with this axle sleeve one-shot forming, be arranged on the annular roller on described axle sleeve, the home position of axle sleeve is provided with the through hole extended along its length, the annular roller is arranged on the center of this sleeve length direction, this annular roller has the thickness of gradual change, by its edge, to described axle sleeve direction, thickeies gradually (being formed by the first above-mentioned inclined-plane 13 and the second inclined-plane 23).Refer to Fig. 2, in Fig. 2, the die cavity formed after cover half 1 and dynamic model 2 matched moulds (being the blank parts in Fig. 2) is exactly the shape of roller.
In the present embodiment, as shown in Figure 1, the first inclined-plane 13 is connected by the first cambered surface 18 with the side 12 of the first pit 11, these, its product obtained has the effect of common described rounding or R position, and its tie point is not right angle, but an arcuation is convenient to this roller and is rotated; The end face of protuberance 21 also is connected by similar the second cambered surface (unmarked in figure) with the second inclined-plane 23 in addition, and in the present embodiment, the angle of the first cambered surface 18 and the second cambered surface is symmetrical.That is to say, these roller both sides are all roundings.
In addition, typically, for injection mold, the setting of its discharging opening requires careful consideration, the position that discharging opening arranges not to the time, may occur that some go out loft, this is particularly disadvantageous as the roller of the rotation related in the present embodiment to product.For fear of this situation, in the present embodiment, the discharging opening (not shown) is arranged on cover half 1, and its position is arranged on the 12 junction, side of the first cambered surface 18 and the first pit 11.Like this appearance that can avoid out loft to the full extent is set, reduce follow-up procedure, be conducive to the one-shot forming of product.
Similarly, in injection mold, the design of depanning thimble is also important.The bad depanning thimble of design not only may cause the depanning difficulty, also can on product, stay stressed while ejecting and indenture that bring.Generally, the design of depanning thimble comprises its position and shape.In the present embodiment, for the depanning requirement that reaches smooth depanning and leave no trace, depanning thimble (not shown) is arranged on the second pit 14 bottom surfaces, the position of the first projection 25 when matched moulds is avoided in the position of its setting, namely can withstand on exactly on product, make its smooth depanning.In addition, in the present embodiment, under certain situation, depanning thimble and product contact-making surface be shaped as an annulus, the excircle diameter of this annulus is less than described the second pit 14 diameters, its inner periphery diameter is more than or equal to the diameter of the first projection 25.Be convenient to be arranged on the bottom surface of above-mentioned the second pit 14 and when needed product applied to active force exactly.On this basis, the shape of depanning thimble and product contact-making surface can be also an annulus with a plurality of breach, and the excircle diameter of this annulus is less than the second pit 14 diameters, and its inner periphery diameter is more than or equal to the diameter of the first projection 25.
In addition, in other situation in the present embodiment, the depanning thimble also can comprise 2, is separately positioned on position symmetrical on the second pit 14 bottom surfaces; The contact-making surface of each thimble and product is the part of annulus, is less than 1/2 annulus; Similarly, the excircle diameter of this annulus is less than the second pit 14 diameters, and its inner periphery diameter is more than or equal to the diameter of the first projection 25.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (6)
1. the mould for the roller injection moulding, comprise fixed half and moving half, it is characterized in that, described cover half is provided with the first pit and the second pit caved in; Described the first pit comprise by land area to extend in described cover half, columniform side and being extended and the first inclined-plane that its diameter diminishes gradually to described cover half is inner near the inner end of cover half by described side; Described the second pit is arranged on the bottom of described the first pit, being shaped as to inner extend cylindrical of described cover half of described the second pit, and the side of described the second pit is connected with the end points on described the first inclined-plane; Described dynamic model enters the protuberance of described the first pit while being included in matched moulds, the outstanding end face of described protuberance is provided with the 3rd pit, described the 3rd pit comprises by described protuberance top edge and starting to inner the second inclined-plane extended of described dynamic model, the diameter on described the second inclined-plane along enter that described dynamic model internal direction diminishes gradually and with described the first inclined-plane symmetry; Described dynamic model also is provided with the 4th pit, and being shaped as of described the 4th pit is cylindrical, and its side is connected with the end of described the second inclined-plane near described dynamic model inside; Described dynamic model also comprises the first projection that is arranged on described the 4th pit bottom center; Described first a protruding end is fixedly connected on described the 4th pit bottom surface, and the other end enters described the second pit and contacts with its bottom surface when matched moulds.
2. the mould for the roller injection moulding according to claim 1, is characterized in that, described the first inclined-plane is connected by the first cambered surface with the side of described the first pit; The end face of described protuberance is connected by the second cambered surface with described the second inclined-plane, and the angle of described the first cambered surface and the second cambered surface is symmetrical.
3. the mould for the roller injection moulding according to claim 2, is characterized in that, discharging opening is arranged on described cover half, and its position is arranged on the junction of described the first cambered surface and described the first pit side.
4. the mould for the roller injection moulding according to claim 3, is characterized in that, the depanning thimble is arranged on described the second pit bottom surface the position of described the first projection while avoiding matched moulds.
5. the mould for the roller injection moulding according to claim 4, it is characterized in that, described depanning thimble and product contact-making surface be shaped as an annulus, the excircle diameter of described annulus is less than described the second pit diameter, its inner periphery diameter is more than or equal to described the first projection diameter.
6. the mould for the roller injection moulding according to claim 4, it is characterized in that, described depanning thimble and product contact-making surface be shaped as an annulus with a plurality of breach, the excircle diameter of described annulus is less than described the second pit diameter, and its inner periphery diameter is more than or equal to described the first projection diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320294341 CN203344257U (en) | 2013-05-27 | 2013-05-27 | Roller injection moulding mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320294341 CN203344257U (en) | 2013-05-27 | 2013-05-27 | Roller injection moulding mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203344257U true CN203344257U (en) | 2013-12-18 |
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ID=49744189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320294341 Expired - Fee Related CN203344257U (en) | 2013-05-27 | 2013-05-27 | Roller injection moulding mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203344257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354266A (en) * | 2014-10-29 | 2015-02-18 | 平湖市三得力脚轮制造有限公司 | Roller injection mold for castor |
-
2013
- 2013-05-27 CN CN 201320294341 patent/CN203344257U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354266A (en) * | 2014-10-29 | 2015-02-18 | 平湖市三得力脚轮制造有限公司 | Roller injection mold for castor |
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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: 20131218 Termination date: 20170527 |
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| CF01 | Termination of patent right due to non-payment of annual fee |