CN203004160U - Mold core of belt pulley injection die - Google Patents
Mold core of belt pulley injection die Download PDFInfo
- Publication number
- CN203004160U CN203004160U CN 201220624548 CN201220624548U CN203004160U CN 203004160 U CN203004160 U CN 203004160U CN 201220624548 CN201220624548 CN 201220624548 CN 201220624548 U CN201220624548 U CN 201220624548U CN 203004160 U CN203004160 U CN 203004160U
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- CN
- China
- Prior art keywords
- belt pulley
- mold core
- core
- core sheet
- injection mold
- 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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- 238000002347 injection Methods 0.000 title claims abstract description 22
- 239000007924 injection Substances 0.000 title claims abstract description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a mold core of a belt pulley injection die. The mold core comprises an upper mold core sheet, a middle mold core sheet and a lower mold core sheet which are fixed together through a plurality of locating pins to form the mold core of the belt pulley injection die; the upper mold core sheet forms gears at the upper 1/3 position of the outer side of a belt pulley; the middle mold core sheet forms gears at the middle 1/3 position of the outer side of the belt pulley; and the lower mold core sheet forms gears at the lower 1/3 position of the outer side of the belt pulley. The mold core of the belt pulley injection die provided by the utility model is composed of the upper mold core sheet, the middle mold core sheet and the lower mold core sheet, so that the difficulty of integrated forming of the mold core is reduced, the demolding of a belt pulley is facilitated, the injection molding quality of the belt pulley is improved, and the mold core is simple in structure and convenient to use and has good application prospect.
Description
Technical field
The utility model relates to a kind of injection mold parts, is specifically related to a kind of core of belt pulley injection mold.
Background technology
As shown in Figure 1, the belt pulley that is used for the printer transmission, belt pulley inside and outside footpath radially is inconsistent, form more gear, Shooting Technique is very complicated, the core of existing belt pulley injection mold, the employing integral forming process is made, and in order to be complementary with the gear that meets belt pulley, manufacture craft is very complicated, and yield rate is low, and the belt pulley after injection moulding, owing to there being the gear depression, be not easy and the whole demoulding of core, can cause pulling of belt pulley, affect the injection moulding quality of belt pulley.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, the core of the belt pulley injection mold that provides, consisted of by upper, middle and lower three slab core sheets, reduced the difficulty of core global formation, and facilitate the demoulding of belt pulley, improve the injection moulding quality of belt pulley, simple in structure, easy to use, have a good application prospect.
In order to achieve the above object, the technical scheme that adopts of the utility model is:
A kind of core of belt pulley injection mold is characterized in that: comprise upper, middle and lower three slab core sheets, described upper, middle and lower three slab core sheets are fixed together by several alignment pins, form the core of belt pulley injection mold.
The core of aforesaid belt pulley injection mold, it is characterized in that: described upper cake core forms upper 1/3rd place's gears in the belt pulley outside, / 3rd place's gears in the described middle cake core formation belt pulley outside, described lower cake core forms lower 1/3rd place's gears in the belt pulley outside.
The core of aforesaid belt pulley injection mold is characterized in that: the quantity of described alignment pin is six.
The beneficial effects of the utility model are: the core of the belt pulley injection mold that the utility model provides, at first upper, middle and lower three slab core sheets are processed separately, then upper, middle and lower three slab core sheets are located and synthesize, reduced the difficulty of die global formation, the belt pulley after injection moulding, adopt the layering demoulding, can not cause the pulling of belt pulley, improve the injection moulding quality of belt pulley, simple in structure, easy to use, have a good application prospect.
Description of drawings
Fig. 1 is the structural representation for the belt pulley of printer transmission.
The structural representation of the core of Fig. 2 belt pulley injection mold of the present utility model.
The enlarged drawing of the core inboard of Fig. 3 belt pulley injection mold of the present utility model.
In accompanying drawing, the implication of mark is as follows:
1: belt pulley; 2: upper cake core; 3: middle cake core; 4: lower cake core; 5: alignment pin; 6: installing hole; A: core is inboard.
The specific embodiment
Below in conjunction with Figure of description, the utility model is further described.
as shown in Figure 1, the protruding cylinder on belt pulley 1 is expected part for connecting, and needs excision, and the core of the utility model injection moulding belt pulley 1 as shown in Figure 2, comprises, in, lower three slab core sheets, on, in, lower three slab core sheets are fixed together by several alignment pins 5, form the core of belt pulley injection mold, and the quantity of the alignment pin here is six, in assurance, in, fitting tightly of lower three slab core sheets, on, in, lower three slab core sheets also are distributed with four installing holes 6 on opposite position, be used for core is fixed on injection mold inside, in making the core process, at first to upper, in, lower three slab core sheets are processed separately, then with upper, in, lower three slab core sheets are located synthetic, do not need to adopt integral forming process to make, and reduce manufacture craft, and yield rate is high, A part in 2 in figure as shown in Figure 3, the enlarged drawing of core inboard, upper cake core 2 form 1/3rd place's gears on belt pulley 1 outside, middle cake core 3 forms 1/3rd place's gears in belt pulley 1 outside, lower cake core 4 forms 1/3rd place's gears under belt pulley 1 outside, and the belt pulley 1 after injection moulding adopts the layering demoulding, from top to bottom, take off successively, in, lower three slab core sheets can not cause like this to the pulling of belt pulley, and the injection moulding quality of raising belt pulley is simple in structure, easy to use, has a good application prospect.
Above demonstration and described basic principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is by appending claims and equivalent circle thereof.
Claims (3)
1. the core of a belt pulley injection mold, it is characterized in that: comprise upper, middle and lower three slab core sheets, described upper, middle and lower three slab core sheets are fixed together by several alignment pins, form the core of belt pulley injection mold.
2. the core of belt pulley injection mold according to claim 1, it is characterized in that: described upper cake core forms upper 1/3rd place's gears in the belt pulley outside, / 3rd place's gears in the described middle cake core formation belt pulley outside, described lower cake core forms lower 1/3rd place's gears in the belt pulley outside.
3. the core of belt pulley injection mold according to claim 1, it is characterized in that: the quantity of described alignment pin is six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624548 CN203004160U (en) | 2012-11-23 | 2012-11-23 | Mold core of belt pulley injection die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624548 CN203004160U (en) | 2012-11-23 | 2012-11-23 | Mold core of belt pulley injection die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203004160U true CN203004160U (en) | 2013-06-19 |
Family
ID=48595791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220624548 Expired - Fee Related CN203004160U (en) | 2012-11-23 | 2012-11-23 | Mold core of belt pulley injection die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203004160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415174A (en) * | 2015-03-04 | 2017-12-01 | 刘仁义 | A kind of deep tooth internal thread demoulding mechanism injection mold and its application method |
-
2012
- 2012-11-23 CN CN 201220624548 patent/CN203004160U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415174A (en) * | 2015-03-04 | 2017-12-01 | 刘仁义 | A kind of deep tooth internal thread demoulding mechanism injection mold and its application method |
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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: 20130619 Termination date: 20151123 |