CN201895081U - Mould opening mechanism for piston with skirt windows - Google Patents
Mould opening mechanism for piston with skirt windows Download PDFInfo
- Publication number
- CN201895081U CN201895081U CN2010205690797U CN201020569079U CN201895081U CN 201895081 U CN201895081 U CN 201895081U CN 2010205690797 U CN2010205690797 U CN 2010205690797U CN 201020569079 U CN201020569079 U CN 201020569079U CN 201895081 U CN201895081 U CN 201895081U
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- Prior art keywords
- mould
- skirt section
- window
- external mold
- pellet
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- Expired - Fee Related
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Abstract
The utility model discloses a mould opening mechanism for a piston with skirt windows, which overcomes the shortage that opening mechanisms for piton moulds in the prior art are high in cost and achieves mould opening and closure of pins at skirt window cores by the aid of an angled core pulling structure. The mould opening mechanism comprises a left outer mould, a left cylinder, a left connecting rod, a right outer mould, a right cylinder and a right connecting rod, wherein the left connecting rod is used for connecting the left outer mould with the left cylinder, the right connecting rod is used for connecting the right outer mould with the right cylinder, a skirt window core is clamped between the left outer mould and the right outer mould, a push pin is fixedly connected to the left outer mould or the right outer mould, the front end of the push pin is obliquely inserted into the skirt window core and slidably matched with the same, the rear end face of the skirt window core is a tapered wedged face, a movable compression block is pressed on the tapered wedged face, and one end of the compression block is fixed to the lateral side of the left outer mould or the right outer mould. The mould opening mechanism achieves mould opening and closing of the pin of the skirt window core when the outer mould is opened or closed by the aid the angled core pulling structure, and is cost-saving, lower in mould size, convenient in mould release and high in efficiency.
Description
Technical field
The utility model belongs to technical field of mold, is specifically related to a kind of demolding structure of Piston mould.
Background technology
For the force-bearing situation that improves the skirt section and reduce inertia, it is the window that is provided with two symmetries in the piston skirt that a kind of optimizing design scheme is arranged in plunger designs.But stripping direction and the stripping direction of external mold of this skirt section window structure in manufacture process is perpendicular, for the demoulding smoothly, present mould design has two kinds of die sinking modes: a kind of is to adopt hand ejection, finishes again with manually deviating from laterally loosing core of skirt section window in die casting; Another kind is to increase the casting machine programmable function to utilize cylinder or oil cylinder to carry out the demoulding.First method efficient is low, and labour intensity is big, and production efficiency is only made 50% of efficient for pot type piston die casting; Second method cost height needs the program-controlled unit and the program of increase equipment, increases cylinder or oil cylinder, comprises pneumatic or hydraulic system.Chinese patent notification number CN 1663710A for example, name is called the utility model patent of " mould emptier that the side core-pulling extrusion die is arranged ", discloses a kind of mould emptier that the side core-pulling extrusion die is arranged, and is the ejecting mechanism that has changed product on the basis of original device; The lengthened plate and the dnockout rod of push rod plate in the prior art are removed, and a hydraulic cylinder is set on the fixed head above the mould, this hydraulic cylinder passes the press bed plate, place on the mould top, the piston rod of hydraulic cylinder and the push rod plate of mould are linked, like this push rod not with press bed plate interlock, and separately by the hydraulic cylinder control that is provided with.There is following some deficiency in this mould emptier: 1. needs increase hydraulic test, comprise control and safety devices such as oil pump and motor, oil cylinder, pipeline, various valves; 2. significantly increase the mould development cost; 3. the mould volume takes up space mostly; 4. generally speaking hydraulic system is that fault is easily examined, but the maintenance trouble.
Summary of the invention
The utility model technical issues that need to address are; overcome the high deficiency of the complicated cost of mould emptier of the Piston mould of prior art; a kind of structure of tiltedly loosing core that increases on mould is provided; utilize mould open/close power to finish the demoulding and the matched moulds of skirt section window pellet pin in the external mold folding, can enhance productivity reduces labor intensity and need not increase equipment investment.
The purpose of this utility model is achieved by following technical proposals: the mould die opening mechanism of a kind of skirt section band window piston, the left connecting rod that comprises left external mold, left oil cylinder and connection left side external mold and left oil cylinder, the right connecting rod of right external mold, right oil cylinder and right external mold of connection and right oil cylinder, in the middle of left external mold and right external mold, accompany skirt section window pellet, on left external mold or right external mold, be fixedly connected with the promotion latch, the front end oblique cutting that promotes latch and is slidingly matched with skirt section window pellet in the window pellet of skirt section; The rear end face of skirt section window pellet is provided with cammed surface, is pressing movably compact heap, compact heap to have an end to be fixedly connected on the side of left external mold or right external mold on this cammed surface.The plastic piston of die cavity that left side external mold and right external mold surround; left side oil cylinder and right oil cylinder can clamp or throw off left external mold and right external mold; when left external mold and right external mold are thrown off owing to the tractive force of left oil cylinder and right oil cylinder; described promotion latch and described compact heap move together in company with left external mold or right external mold; compact heap and skirt section window pellet are separated; promote latch then when recession is mobile owing to tiltedly join the effect of the transverse component that the angle of cut produces, can promote skirt section window pellet and outwards withdraw from and break away from the piston details of die cast.
As preferably, the angle of cut of the die joint of described promotion latch and mould is 50 °～80 °.This angle of cut is that the distance that withdraws from according to skirt section window pellet needs and left external mold or the stroke of right external mold when separating are determined.
As preferably, the rear end face of described skirt section window pellet is parallel with the axis of described promotion latch; And the rear end face of skirt section window pellet is identical with respect to the angle of cut of the die joint of mould with the promotion latch with respect to the angle of inclination of mould die joint.
As preferably, described compact heap is identical with respect to the angle of inclination of mould die joint with the mating surface of the rear end face of skirt section window pellet.
As preferably, the window pellet both sides, skirt section of described mould are provided with guide rail; Therefore the advance and retreat of skirt section window pellet are led by guide rail, and only needing to promote latch with one provides motive force just can make skirt section window pellet regular event and be unlikely to take place anomaly such as deflection.
The beneficial effects of the utility model are:
1. on mould, increase the structure of tiltedly loosing core, utilize mould open/close power in the external mold folding, to finish the demoulding and the matched moulds of skirt section window pellet pin;
2. save the mould development cost;
3. the mould volume is less relatively;
4. be convenient in demoulding fast, enhance productivity the amount of lightening one's labor.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Among the figure: 11. left external molds; 12 left connecting rods; 13. left oil cylinder; 21. right external mold; 22. right connecting rod; 23. right oil cylinder; 3. skirt section window pellet; 4. promotion latch; 5. compact heap.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiments the utility model is further described.
Embodiment 1: as shown in Figure 1, the mould die opening mechanism of a kind of skirt section band window piston, comprise left external mold 11, left oil cylinder 13 and the left connecting rod 12 that connects left external mold 11 and left oil cylinder 13, right external mold 21, right oil cylinder 23 and the right connecting rod 22 that connects right external mold 21 and right oil cylinder 23, in the middle of left external mold 11 and right external mold 21, accompany skirt section window pellet 3, on right external mold 21, be fixedly connected with and promote latch 4, the front end oblique cutting that promotes latch 4 on skirt section window pellet 3, and with skirt section window pellet 3 for being slidingly matched; The rear end face of skirt section window pellet 3 is a cammed surface, is pressing compact heap 5 on this cammed surface, and compact heap 5 has the side of the fixedly connected right external mold 21 of an end.The plastic piston of die cavity that left side external mold 11 and right external mold 21 surround, left side oil cylinder 13 and right oil cylinder 23 can clamp or throw off left external mold 11 and right external mold 21, when left external mold 11 and right external mold 21 because the traction of left oil cylinder 13 and right oil cylinder 23 when throwing off, described promotion latch 4 and described compact heap 5 move together in company with right external mold 23, compact heap 5 breaks away from skirt section window pellet 3, promote 4 of latches when recession is mobile owing to tiltedly join the effect of the component that the angle of cut produces, can promote skirt section window pellet 3 and outwards withdraw from and break away from the piston details of die cast.
Described promotion latch 4 is 65 ° with the angle of cut of the die joint of mould.This angle of cut is that the distance that withdraws from according to skirt section window pellet 3 needs and left external mold 11 or the stroke of right external mold 21 when separating are determined.
The rear end face of skirt section window pellet 3 is parallel with the axis that promotes latch 4; In other words the rear end face that is exactly skirt section window pellet 3 is identical with respect to the angle of cut of the die joint of mould with promotion latch 4 with respect to the angle of inclination of mould die joint; Compact heap 5 is identical with respect to the angle of inclination of mould die joint with the mating surface of the rear end face of skirt section window pellet 3, and these two mating surfaces are through grinding and bedding-in.
Be provided with guide rail in window pellet 3 both sides, the skirt section of mould; Therefore the advance and retreat of skirt section window pellet 3 are led by guide rail, only need to promote latch 4 with one and just can make skirt section window pellet 3 regular events and be unlikely to take place phenomenon such as deflection.
Be provided with two piston die cavities side by side in the total die cavity that is surrounded by left external mold 11 and right external mold, be commonly called as one and go out two molds, this structure can improve one times of die casting effect.
Use the course of action of mould to be described below: the first step, the die casting lathe starts, left and right cylinder action, promote left and right external mold matched moulds by left and right connecting rod, promoting latch 4 and compact heap 5 in the time of matched moulds follows right external mold 21 actions and impels the 3 horizontal jackings of skirt section window pellet, left and right external mold and skirt section window pellet arrive station simultaneously and skirt section window pellet are clamped, and compact heap 4 also arrives station just simultaneously and be pressed in skirt section window pellet 3 rearward end, and matched moulds finishes; Second step, beginning die casting, pressurize cooling moulding; The 3rd step, die sinking, left and right oil cylinder draws left and right external mold by left and right connecting rod and divides mould, promotes latch 4 and compact heap 5 simultaneously and follows right external mold 21 and return and impel skirt section window pellet 5 laterally to withdraw to break away from the piston foundry goods.
Claims (5)
1. the mould die opening mechanism of a skirt section band window piston, the left connecting rod that comprises left external mold, left oil cylinder and connection left side external mold and left oil cylinder, the right connecting rod of right external mold, right oil cylinder and right external mold of connection and right oil cylinder, it is characterized in that, in the middle of left external mold and right external mold, accompany skirt section window pellet, be fixedly connected with the promotion latch on left external mold or right external mold, the front end oblique cutting that promotes latch and is slidingly matched with skirt section window pellet in the window pellet of skirt section; The rear end face of skirt section window pellet is provided with cammed surface, is pressing movably compact heap, compact heap to have an end to be fixedly connected on the side of left external mold or right external mold on this cammed surface.
2. the mould die opening mechanism of skirt section according to claim 1 band window piston is characterized in that the angle of cut of the die joint of described promotion latch and mould is 50 °～80 °.
3. the mould die opening mechanism of skirt section according to claim 1 and 2 band window piston is characterized in that the rear end face of described skirt section window pellet is parallel with the axis of described promotion latch; And the rear end face of skirt section window pellet is identical with respect to the angle of cut of the die joint of mould with the promotion latch with respect to the angle of inclination of mould die joint.
4. the mould die opening mechanism of skirt section according to claim 1 and 2 band window piston is characterized in that described compact heap is identical with respect to the angle of inclination of mould die joint with the mating surface of the rear end face of skirt section window pellet.
5. the mould die opening mechanism of skirt section according to claim 3 band window piston is characterized in that the window pellet both sides, skirt section of described mould are provided with guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205690797U CN201895081U (en) | 2010-10-21 | 2010-10-21 | Mould opening mechanism for piston with skirt windows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205690797U CN201895081U (en) | 2010-10-21 | 2010-10-21 | Mould opening mechanism for piston with skirt windows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201895081U true CN201895081U (en) | 2011-07-13 |
Family
ID=44253000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205690797U Expired - Fee Related CN201895081U (en) | 2010-10-21 | 2010-10-21 | Mould opening mechanism for piston with skirt windows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201895081U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231042A (en) * | 2013-04-25 | 2013-08-07 | 吴江市董鑫塑料包装厂 | Stripping device |
| CN107009490A (en) * | 2017-05-02 | 2017-08-04 | 南宫市聚纯炭素有限公司 | A kind of graphite crucible one-time-shaped mould |
| CN112157243A (en) * | 2020-08-25 | 2021-01-01 | 宁国市红宁橡塑制品有限公司 | Quick forming die is used in processing of condenser apron |
-
2010
- 2010-10-21 CN CN2010205690797U patent/CN201895081U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231042A (en) * | 2013-04-25 | 2013-08-07 | 吴江市董鑫塑料包装厂 | Stripping device |
| CN107009490A (en) * | 2017-05-02 | 2017-08-04 | 南宫市聚纯炭素有限公司 | A kind of graphite crucible one-time-shaped mould |
| CN107009490B (en) * | 2017-05-02 | 2020-02-21 | 南宫市聚纯炭素有限公司 | Graphite crucible one-step forming die |
| CN112157243A (en) * | 2020-08-25 | 2021-01-01 | 宁国市红宁橡塑制品有限公司 | Quick forming die is used in processing of condenser apron |
| CN112157243B (en) * | 2020-08-25 | 2022-04-01 | 宁国市红宁橡塑制品有限公司 | Quick forming die is used in processing of condenser apron |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20131021 |