CN205272517U - Spiral shell drives skewed tooth casting mold - Google Patents
Spiral shell drives skewed tooth casting mold Download PDFInfo
- Publication number
- CN205272517U CN205272517U CN201520927061.2U CN201520927061U CN205272517U CN 205272517 U CN205272517 U CN 205272517U CN 201520927061 U CN201520927061 U CN 201520927061U CN 205272517 U CN205272517 U CN 205272517U
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- China
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- die cavity
- dynamic model
- cover half
- slide
- wedge
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Abstract
The utility model relates to a plastics processing mould discloses a spiral shell drives skewed tooth casting mold, including cover half and movable mould, cover half and the movable mould shape moulding chamber of laminating relatively is equipped with the sprue gate on the die cavity, connect through the screw rod between cover half and the movable mould, and the screw rod passes the threaded holes and movable mould that is equipped with on the cover half connects, and the one end that the screw rod is located the cover half is equipped with the hand wheel, the upper and lower side of die cavity is equipped with upper saddle and lower slide seat respectively, and sliding connection is on the movable mould respectively for upper saddle and lower slide seat, and articulated respectively on upper saddle and the lower slide seat have last gear and a gear down, corresponds on the cover half to be equipped with screw rack, screw rack and go up gear, gear engagement down, and one end that upper saddle and lower slide seat are close to the die cavity is equipped with respectively that the die cavity is filled in and lower die cavity is filled in. Above -mentioned scheme through the drawing of patterns simultaneously in the three direction, reduces the stress concentration on foundry goods surface to the easy cracked problem of the thinner shaft -like foundry goods of pouring for the drawing of patterns of foundry goods is more stable, splits when effectively avoiding the work piece drawing of patterns.
Description
Technical field
The utility model relates to a kind of plastic machining mold.
Background technology
Injection moulding is a kind of method of Industrial products production moulding. Product uses rubber injection mold and plastic injection usually. Injection moulding also can dispensing molding die platen press and casting die. Injection moulding machine (abbreviation injector or injection moulding machine) is the main molding device of the plastics that thermoplastics or thermoset material utilize mould for plastics make different shape, and injection molding is realized by injection moulding machine and mould. Product is widely used in: the industry such as mobile phone, laptop computer, multiple plastic shell, communication, micromotor, computer, electrical equipment, electronics, toy, clock and watch, lamp decoration, locomotive. Injection mold is the instrument producing plasthetics, is also the instrument giving plasthetics complete structure and accurate dimension. A kind of working method used when injection moulding is some complex-shaped parts of batch production, specifically refers to by high pressure, the material melted that is heated is injected die cavity, after cooling curing, obtains molding.
Along with the day by day maturation of injection molding technology, more and more plastic cement products can be produced by injection moulding, and simultaneously that the requirement of mould is also more and more higher, mould is generally divided into dynamic model and cover half, treats that foundry goods is shaping, and dynamic model moves opens die cavity, is exposed by foundry goods and then takes off; For the shaft-like foundry goods that some are thinner, if simple adopts dynamic model positioned opposite and the cover half demoulding, foundry goods unbalance stress can be made, it is easy to cause casting deformation tear or directly rupture.
Practical novel content
The utility model be intended to provide a kind of avoid very thin foundry goods deform fracture spiral shell drive helical teeth casting mold.
Spiral shell in this scheme drives helical teeth casting mold, comprise fixed half and moving half, described fixed half and moving half is fitted formation die cavity relatively, die cavity is provided with sprue gate, connected by screw rod between described fixed half and moving half, the threaded hole that screw rod is provided with through cover half connects with dynamic model again, the through hole that dynamic model is provided with it is placed in one end of screw rod connection dynamic model, the both sides being positioned at dynamic model on screw rod are provided with spacing shoulder, the cross-sectional area of this shoulder is greater than the via area on dynamic model, and one end that screw rod is positioned at cover half is provided with handwheel; The upper and lower of die cavity is respectively equipped with slide and lower slider, upper slide and lower slider are slidably connected on dynamic model respectively, upper slide and lower slider are hinged with gear and lower gear respectively, on cover half, correspondence is provided with helical rack, lower helical rack and upper gear, lower gear engagement, upper slide and lower slider are respectively equipped with upper cavity plug and lower mode cavity plug near one end of die cavity, described upper cavity plug and lower mode cavity plug shutoff are in the opening being located on die cavity side, the face that on die cavity, sprue gate is relative is provided with push rod, and push rod is through dynamic model and extends in die cavity.
Useful effect: cast starts, dynamic model and cover half close, and upper slide and lower slider push against to die cavity direction, upper cavity plug and lower mode cavity plug is made to block the opening on die cavity side, mould-injection fused solution is watered in die cavity, to be cast shaping after, rotation hand wheel drives screw rod, one end that screw rod is positioned at dynamic model rotates equally, screw rod feeding promotes dynamic model to move, dynamic model and cover half are laterally separately, upper helical rack, lower helical rack promotes on upper slide and lower slider, lower slip, the cooperation of rack and pinion makes by power more evenly rationally, upper cavity plug and lower mode cavity plug and die cavity are separately, realize the demoulding on workpiece three directions, make stress dispersion suffered by workpiece, not easy fracture, so the demoulding is stablized feasible more, when the demoulding completes, now workpiece is still bonded on dynamic model, promotes push rod, is ejected by workpiece, workpiece is come off. such scheme is for the problem of the thinner shaft-like foundry goods easy fracture of cast, and by the demoulding simultaneously on three directions, the stress reducing cast(ing) surface is concentrated so that the demoulding of foundry goods is more stable, effectively avoids rupturing during the workpiece demoulding.
Further, the upper and lower of described upper slide and lower slider is respectively equipped with wedge and lower wedge, upper wedge, lower wedge are provided with and described upper helical rack, inclined-plane that lower helical rack gradient is identical, upper slide, lower slider are respectively equipped with and inclined-plane that upper wedge, lower wedge inclined-plane fit. Wedge and lower wedge are set, it is possible to upper slide, lower slider are risen certain supporting role, slide, lower slider are slided more stable, so increasing mold releasability reliability.
Further, described upper slide, lower slider are provided with boss near one end of upper cavity plug, lower mode cavity plug, and this boss is sandwiched in the spacing groove being located at die cavity outside, carries out spacing to boss, prevent upper cavity plug, lower mode cavity plug from offseting, cannot opening on shutoff die cavity side.
Further, described push rod is connected with slide block away from one end of die cavity, dynamic model is laterally provided with sliding bar, sliding bar makes slide block slide on sliding bar through slide block, and slide block is provided with, away from the side of die cavity, the baffle plate limiting slide block position, and push rod is led by sliding bar, push rod is made to move steadily, baffle plate is spacing to the movement of push rod, makes push rod release end and just goes out die cavity, and the drive end of push rod reaches baffle position.
Further, described upper wedge and lower wedge are bolted respectively on cover half, and cross bar bolt is connected on dynamic model, and bolt connects reliable, and can dismantle, and are convenient to dismounting.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model spiral shell drives helical teeth casting mold embodiment.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference numeral in Figure of description comprises: cover half 1, upper wedge 11, lower wedge 12, upper helical rack 13, lower helical rack 14, dynamic model 2, push rod 21, die cavity 3, screw rod 4, handwheel 41.
Embodiment is substantially as shown in Figure 1:
Spiral shell in this scheme drives helical teeth casting mold, comprise cover half 1 and dynamic model 2, cover half 1 laminating relative to dynamic model 2 forms die cavity 3, die cavity 3 has sprue gate, connected by screw rod 4 between cover half 1 and dynamic model 2, the threaded hole that screw rod 4 has on cover half 1 and dynamic model 2 connect, screw rod 4 connects in one end of dynamic model 2 and is placed on dynamic model 2 through hole having, screw rod 4 is positioned at the shoulder of the both sides welded limiting of dynamic model 2, the via area that the cross-sectional area of this shoulder is greater than on dynamic model 2, one end that screw rod 4 is positioned at cover half 1 is connected with handwheel 41.
Die cavity 3 upper, lower section is separately installed with slide and lower slider, upper slide and lower slider are slidably connected on dynamic model 2 respectively, upper slide and lower slider are hinged with gear and lower gear respectively, on cover half 1, correspondence is provided with helical rack 13, lower helical rack 14 and upper gear, lower gear engages, upper slide and lower slider are processed with upper cavity plug and lower mode cavity plug respectively near one end of die cavity 3, in upper cavity plug and the lower mode cavity plug shutoff opening on die cavity 3 side, the face that on die cavity 3, sprue gate is relative is provided with push rod 21, push rod 21 is through dynamic model 2 and extends in die cavity 3.
The upper and lower of upper slide and lower slider is separately installed with wedge 11 and lower wedge 12, upper wedge 11, lower wedge 12 are processed with and described upper helical rack 13, inclined-plane that lower helical rack 14 gradient is identical, upper slide, lower slider are processed with respectively and inclined-plane that upper wedge 11, lower wedge 12 inclined-plane fit. Wedge 11 and lower wedge 12 are set, it is possible to upper slide, lower slider are risen certain supporting role, slide, lower slider are slided more stable, so increasing mold releasability reliability. Upper slide, lower slider are processed with boss near one end of upper cavity plug, lower mode cavity plug, and this boss is sandwiched in out in the spacing groove of die cavity 3 outside, carries out spacing to boss, prevent upper cavity plug, lower mode cavity plug from offseting, cannot opening on shutoff die cavity 3 side.
Push rod 21 is connected with slide block away from one end of die cavity 3, dynamic model 2 is laterally provided with sliding bar, sliding bar makes slide block slide on sliding bar through slide block, slide block is provided with, away from the side of die cavity 3, the baffle plate limiting slide block position, push rod 21 is led by sliding bar, and push rod 21 is moved steadily, and baffle plate is spacing to the movement of push rod 21, making push rod 21 release end and just go out die cavity 3, the drive end of push rod 21 reaches baffle position. Upper wedge 11 and lower wedge 12 are bolted respectively on cover half 1, and cross bar bolt is connected on dynamic model 2, and bolt connects reliable, and can dismantle, and are convenient to dismounting.
Principle of work: cast starts, dynamic model 2 and cover half 1 close, and upper slide and lower slider push against to die cavity 3 direction, upper cavity plug and lower mode cavity plug is made to block the opening on die cavity 3 side, mould-injection fused solution is watered in die cavity 3, to be cast shaping after, rotation hand wheel 41 drives screw rod 4, one end that screw rod 4 is positioned at dynamic model 2 rotates equally, screw rod 4 feeding promotes dynamic model 2 to move, dynamic model 2 and cover half 1 are laterally separately, upper helical rack 13, lower helical rack 14 promotes on upper slide and lower slider, lower slip, the cooperation of rack and pinion makes by power more evenly rationally, upper cavity plug and lower mode cavity plug and die cavity 3 are separately, realize the demoulding on workpiece three directions, make stress dispersion suffered by workpiece, not easy fracture, so the demoulding is stablized feasible more, when the demoulding completes, now workpiece is still bonded on dynamic model 2, promotes push rod 21, is ejected by workpiece, workpiece is come off.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this. Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, it is also possible to make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability that the utility model is implemented. The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification sheets etc. record the content that may be used for explaining claim.
Claims (5)
1. a spiral shell drives helical teeth casting mold, comprise fixed half and moving half, described fixed half and moving half is fitted formation die cavity relatively, die cavity is provided with sprue gate, it is characterized in that: connected by screw rod between described fixed half and moving half, connect with dynamic model again after the threaded hole that screw rod is provided with through cover half, the through hole that dynamic model is provided with it is placed in one end of screw rod connection dynamic model, the both sides being positioned at dynamic model on screw rod are provided with spacing shoulder, the cross-sectional area of this shoulder is greater than the via area on dynamic model, and one end that screw rod is positioned at cover half is provided with handwheel; The upper and lower of die cavity is respectively equipped with slide and lower slider, upper slide and lower slider are slidably connected on dynamic model respectively, upper slide and lower slider are hinged with gear and lower gear respectively, on cover half, correspondence is provided with helical rack, lower helical rack and upper gear, lower gear engagement, upper slide and lower slider are respectively equipped with upper cavity plug and lower mode cavity plug near one end of die cavity, described upper cavity plug and lower mode cavity plug shutoff are in the opening being located on die cavity side, the face that on die cavity, sprue gate is relative is provided with push rod, and push rod is through dynamic model and extends in die cavity.
2. spiral shell according to claim 1 drives helical teeth casting mold, it is characterized in that: the upper and lower of described upper slide and lower slider is respectively equipped with wedge and lower wedge, upper wedge, lower wedge are provided with and described upper helical rack, inclined-plane that lower helical rack gradient is identical, upper slide, lower slider are respectively equipped with and inclined-plane that upper wedge, lower wedge inclined-plane fit.
3. spiral shell according to claim 2 drives helical teeth casting mold, it is characterised in that: described upper slide, lower slider are provided with boss near one end of upper cavity plug, lower mode cavity plug, and this boss is sandwiched in the spacing groove being located at die cavity outside.
4. spiral shell according to claim 3 drives helical teeth casting mold, it is characterized in that: described push rod is connected with slide block away from one end of die cavity, laterally being provided with sliding bar on dynamic model, sliding bar makes slide block slide on sliding bar through slide block, and slide block is provided with the baffle plate of restriction slide block position away from the side of die cavity.
5. spiral shell according to claim 4 drives helical teeth casting mold, it is characterised in that: described upper wedge and lower wedge are bolted respectively on cover half, and cross bar bolt is connected on dynamic model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520927061.2U CN205272517U (en) | 2015-11-19 | 2015-11-19 | Spiral shell drives skewed tooth casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520927061.2U CN205272517U (en) | 2015-11-19 | 2015-11-19 | Spiral shell drives skewed tooth casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205272517U true CN205272517U (en) | 2016-06-01 |
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ID=56057130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520927061.2U Expired - Fee Related CN205272517U (en) | 2015-11-19 | 2015-11-19 | Spiral shell drives skewed tooth casting mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205272517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111186096A (en) * | 2020-01-13 | 2020-05-22 | 宁波方正汽车模具股份有限公司 | Air blowing and demolding mechanism of automobile internal air duct injection mold |
-
2015
- 2015-11-19 CN CN201520927061.2U patent/CN205272517U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111186096A (en) * | 2020-01-13 | 2020-05-22 | 宁波方正汽车模具股份有限公司 | Air blowing and demolding mechanism of automobile internal air duct injection mold |
| CN111186096B (en) * | 2020-01-13 | 2021-09-28 | 宁波方正汽车模具股份有限公司 | Air blowing and demolding mechanism of automobile internal air duct injection mold |
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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: 20160601 Termination date: 20161119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |