CN205416253U - Mould core pulling mechanism - Google Patents
Mould core pulling mechanism Download PDFInfo
- Publication number
- CN205416253U CN205416253U CN201620289712.4U CN201620289712U CN205416253U CN 205416253 U CN205416253 U CN 205416253U CN 201620289712 U CN201620289712 U CN 201620289712U CN 205416253 U CN205416253 U CN 205416253U
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- CN
- China
- Prior art keywords
- shovel
- pulling mechanism
- core pulling
- mould core
- oil cylinder
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Abstract
The utility model relates to a mould core pulling mechanism, it includes the mold insert of loosing core, can drive gliding slider of the mold insert of loosing core and hydro -cylinder, mould core pulling mechanism is still including connecting the hydro -cylinder with the shovel machine of slider, the shovel machine is the wedge, the slider is provided with an inclined plane correspondingly, the wedge face of shovel machine with laminate and relative slip freely closely in the inclined plane, T type piece is drawn together to the shovel press packed bale, the slider correspondence is provided with a T type groove, the T type piece of shovel machine with a T type groove of slider coordinates freely relative slip closely. The utility model discloses an embodiment aims at solving the mould core pulling mechanism among the prior art, and when the hydro -cylinder was less, the technical problem of cutting edge of a knife or a sword easily appeared draping over one's shoulders in the finished product.
Description
Technical field
This utility model relates to mould structure technical field, particularly relates to a kind of mould core pulling mechanism.
Background technology
In die molding process, especially during injection molded, many casing series products only complete operation ability die sinking of loosing core, and general employing oil cylinder is loosed core, so that pulled core structure completes operation of loosing core.Existing mould core pulling mechanism generally comprises slide block, oil cylinder, mold insert of loosing core, and mold insert of loosing core stretches in die cavity after being screwed with slide block, and oil cylinder is threaded connection with slide block.This structure is when oil cylinder is less, it may appear that because cavity pressure is more than the thrust of oil cylinder, force the mold insert of loosing core connecting oil cylinder to retreat, and causes finished surface batch cutting edge of a knife or a sword phenomenon easily occur and makes the end product quality cannot be up to standard.
Utility model content
The purpose of this utility model is to provide a kind of mould core pulling mechanism, it is intended to solving mould core pulling mechanism of the prior art, when oil cylinder is less, the technical problem of burr easily occurs in finished product.
In order to solve the problems referred to above, this utility model uses below scheme, this mould core pulling mechanism include loosing core mold insert, can drive described in loose core the slide block and oil cylinder that mold insert slides；Described mould core pulling mechanism also includes the shovel connecting described oil cylinder with described slide block, and described shovel is wedge shaped, and described slide block is correspondingly provided with an inclined-plane, and the lozenges of described shovel is closely fitted with described inclined-plane and can the most relative slide；Described shovel includes T-shaped piece, and described slide block is correspondingly arranged on the first T-slot, and the first T-slot close fit of T-shaped piece of described shovel and described slide block also can the most relative be slided.
Preferably, also including cover plate and guide plate, form a passage after described cover plate is fixing with the combination of described guide plate, described shovel can move back and forth after being connected with the piston of described oil cylinder in this passage.
Preferably, the angle of inclination on described lozenges and described slide block inclined-plane is, 10 ° of ＜ ＜ 20 °.
Preferably, described shovel is connected by chute with the piston of described oil cylinder.
Preferably, described oil cylinder includes oil cylinder T block, and described shovel also includes the second T-slot matched with described oil cylinder T block.
Preferably, described chute is vertical with the axis of described piston.
Preferably, T-shaped piece of described shovel is set up separately with the second T-slot of described shovel in the adjacent two sides of described shovel.
Preferably, described shovel is threaded connection with the piston of oil cylinder.
Preferably, described slide block also includes threeth T-slot suitable with described mold insert of loosing core.
Preferably, also including wear plate, described wear plate is fixing with described shovel to be connected.
Beneficial effect: this utility model embodiment by being designed as including loose core mold insert, the slide block that mold insert of loosing core can be driven to slide and oil cylinder by mould core pulling mechanism；This mould core pulling mechanism also includes the shovel connecting oil cylinder with slide block；Shovel includes T-shaped piece, and slide block is correspondingly arranged on the first T-slot, and the first T-slot close fit of T-shaped piece of shovel and slide block also can the most relative be slided.The piston of oil cylinder is connected with shovel, and shovel is connected with the first T-slot of slide block by T-shaped piece, and oil cylinder only need to drive shovel to move, and shovel then band movable slider moves.Because mould core pulling mechanism is provided with wedge shape shovel, because of the decomposition to cavity pressure of the wedge shape shovel, the power making cavity pressure act on oil cylinder reduces, in the timing of oil cylinder born pressure one, the mould core pulling mechanism being provided with wedge shape shovel can bear bigger cavity pressure, thus solving when oil cylinder is less, easily there is the technical problem of burr in finished product.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, in describing embodiment below, the required accompanying drawing used is briefly introduced, obviously, accompanying drawing in describing below is only embodiments more of the present utility model, from the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the front view of the mould core pulling mechanism that this utility model one embodiment provides；
Fig. 2 is the exploded perspective view of mould core pulling mechanism in Fig. 1；
Fig. 3 is mould core pulling mechanism sectional view at A-A in Fig. 1；
Fig. 4 is the structural representation of slide block in Fig. 1 mould core pulling mechanism；
Fig. 5 is the structural representation of shovel in Fig. 1 mould core pulling mechanism；
Fig. 6 is principle schematic of the present utility model.
Drawing reference numeral illustrates:
The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, with detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, a kind of mould core pulling mechanism of this utility model embodiment proposition includes loose core mold insert 1, the slide block 2 that mold insert 1 of loosing core can be driven to slide and oil cylinder 3；Mould core pulling mechanism also includes the shovel 4 connecting oil cylinder 3 with slide block 2, and shovel 4 is wedge shaped, and slide block 2 is correspondingly provided with an inclined-plane 21, and the lozenges 41 of shovel 4 is closely fitted with inclined-plane 21 and can the most relative slide；Shovel 4 includes T-shaped piece 42, and slide block 2 is correspondingly arranged on the first T-slot 22, and the first T-slot 22 close fit of T-shaped piece 42 of shovel 4 and slide block 2 also can the most relative be slided.
This utility model embodiment includes loose core mold insert 1, the slide block 2 that mold insert 1 of loosing core can be driven to slide and oil cylinder 3 by being designed as by mould core pulling mechanism；Mould core pulling mechanism also includes the shovel 4 connecting oil cylinder 3 with slide block 2, and shovel 4 is wedge shaped, and slide block 2 is correspondingly provided with an inclined-plane 21, and the lozenges 41 of shovel 4 is closely fitted with inclined-plane 21 and can the most relative slide；Shovel 4 includes T-shaped piece 42, and slide block 2 is correspondingly arranged on the first T-slot 22, and the first T-slot 22 close fit of T-shaped piece 42 of shovel 4 and slide block 2 also can the most relative be slided.The piston of oil cylinder 3 is connected with shovel 4, and shovel 4 is connected with the first T-slot 22 of slide block 2 by T-shaped piece 42, and oil cylinder 3 need to drive shovel 4 to move, and shovel 4 then band movable slider 2 moves.Because mould core pulling mechanism is provided with wedge shape shovel 4, because of the wedge shape shovel 4 decomposition to cavity pressure, the power making cavity pressure act on oil cylinder 3 reduces.Compared with existing mould core pulling mechanism, in the timing of oil cylinder 3 born pressure one, this mould core pulling mechanism can bear bigger cavity pressure, thus solve when oil cylinder is less, and the technical problem of burr easily occurs in finished product.
Preferably, this mould core pulling mechanism also includes cover plate 5 and guide plate 6, forms a passage after cover plate 5 is fixing with guide plate 6 combination, and shovel 4 can move back and forth after being connected with the piston of oil cylinder 3 in this passage.
Preferably, shovel 4 is connected by chute with the piston of oil cylinder 3, can the most relatively slide with shovel 4 realizing oil cylinder 3.
Preferably, oil cylinder 3 includes oil cylinder T block 31 (see Fig. 5), and shovel 4 also includes the second T-slot 43 matched with oil cylinder T block 31, deviates the second T-slot 43 of shovel 4 during to avoid oil cylinder 3 to slide.
Further, chute with the axis of piston vertical, this structure makes slide relative with shovel 4 of oil cylinder 3 be more prone to.
Preferably, T-shaped piece 42 of shovel 4 sets up separately in the adjacent two sides of shovel 4 with the second T-slot 43 of shovel 4, so that oil cylinder 3 and slide block 2 are connected to the adjacent two sides of shovel 4, oil cylinder 3 need to drive shovel 4 to move, shovel 4 then band movable slider 2 moves, and then drives mold insert 1 of loosing core to complete to reset and loose core action.
Further, shovel 4 can also be threaded connection with the piston of oil cylinder 3.
Slide block 2 also includes threeth T-slot 23 suitable with mold insert 1 of loosing core, with connection sliding block 2 and mold insert 1 of loosing core.
As shown in Figure 5, it is preferable that mould core pulling mechanism of the present utility model also includes wear plate 7, wear plate 7 is fixing with shovel 4 is connected.
Preferably, mould core pulling mechanism of the present utility model also includes the first limited block 81 playing position-limiting action when matched moulds, and the first limited block 81 is connected with guide plate 6.
Preferably, mould core pulling mechanism of the present utility model plays the second limited block 82 of position-limiting action when also including for having loosed core, and the second limited block 82 is connected with guide plate 6.
Specifically, this mould core pulling mechanism also includes loose core guide pin bushing 83, travel switch line 84, travel switch 85, travel switch backing plate 86, travel switch touch panel 87, transfer block 88.Mold insert 1 of loosing core is connected on slide block 2 by the 3rd T-slot of slide block 2, and guide pin bushing of loosing core is fixed on the front mould 9 of mould, and mold insert 1 of loosing core can be play the guiding role by this structure.Slide block 2 is connected in shovel 4 by the first T-slot 22 again, and wear plate 7 is fixed in shovel 4, to realize wear-resisting and regulatory function.Oil cylinder 3 is connected with shovel 4 by oil cylinder T block 31, moves with driven mold pulled core structure.Guide plate 6 is fixed on front mould 9 by pin and screw, and shovel 4 can be played guide effect by this structure.Oil cylinder 3 also includes the oil cylinder inverse block (sign) being connected with oil cylinder T block 31, to place cylinder piston rod rotation.Cover plate 5 is arranged on guide plate 6, and this structure can play the effect of interlocking with shovel 4.Travel switch line 84, travel switch 85, travel switch backing plate 86, travel switch touch panel 87, transfer block 88 are for controlling the stroke of oil cylinder 3.
In mould core pulling mechanism of the present utility model, lozenges 41 and the angle of inclination on inclined-plane 21 fitted with it are, when less than a certain value, even if the cavity pressure suffered by slide block 2 is bigger, shovel 3 stands fast, slide block 2 also will not retreat, and the mold insert 1 of loosing core i.e. being attached thereto mold insert of loosing core when cavity pressure is bigger will not retreat, and then avoids product batch cutting edge of a knife or a sword phenomenon occur.
In physics, when object is when the component suffered by the direction of motion is less than the maximum static friction force suffered by object, object i.e. geo-stationary, do not have movement.As shown in Figure 6, slide block 2 is by cavity pressure F and acts on the lozenges 41 of shovel 3, and F is broken down into the component Fb of component Fa and the glide direction being perpendicular to lozenges, according to the parallelogram law of mechanics: Fa=F*cos, Fb=F*sin；Maximum static friction force Ff=μ * Fa (μ is coefficient of friction) that slide block 2 is suffered on inclined-plane 21, as long as meet Fb ＜ Ff, slide block 2 will geo-stationary.
Can be obtained by Fb ＜ μ * Fa: μ ＞ Fb/Fa=(F*sin)/(F*cos)=sin/cos=tg, it may be assumed that when coefficientoffrictionμ value is more than tg value, slide block 2 will geo-stationary.
Can be from which further followed that slide block 2 will reach geo-stationary as ＜ arctg (μ) by μ ＞ tg.
Principle according to active force Yu counteracting force: during ＜ arctan (μ), shovel 3 just will not retreat.It addition, the thrust of oil cylinder 4 also can stop shovel 3 to retreat, value can suitably be relaxed the most in actual use, specifically depending on the cavity pressure size of the available thrust of oil cylinder 4 and mould.Preferably, during 10 ° of ＜ ＜ 20 °, slide block 2 reaches relative static conditions.
In sum, this utility model can effectively utilize frictional force to bear the partial pressure of mould, the whole core-pulling device is made to fill at mould and be in relative static conditions all the time during cooling etc., it is to avoid to cause product that the probability of batch cutting edge of a knife or a sword occurs because cylinder thrust is not enough.Owing to this mould core pulling mechanism have employed whole technical schemes of above-mentioned all embodiments, having all beneficial effects that the technical scheme of above-described embodiment is brought the most equally, this is no longer going to repeat them.
It will be apparent to those skilled in the art that can technical scheme as described above and design, make other various corresponding changes and deformation, and within all these changes and deformation all should belong to this utility model scope of the claims.
Claims (10)
1. a mould core pulling mechanism, it is characterised in that the mold insert that includes loosing core, can drive described in loose core the slide block and oil cylinder that mold insert slides；Described mould core pulling mechanism also includes the shovel connecting described oil cylinder with described slide block, and described shovel is wedge shaped, and described slide block is correspondingly provided with an inclined-plane, and the lozenges of described shovel is closely fitted with described inclined-plane and can the most relative slide；Described shovel includes T-shaped piece, and described slide block is correspondingly arranged on the first T-slot, and the first T-slot close fit of T-shaped piece of described shovel and described slide block also can the most relative be slided.
2. mould core pulling mechanism as claimed in claim 1, it is characterised in that also include cover plate and guide plate, forms a passage after described cover plate is fixing with the combination of described guide plate, and described shovel can move back and forth after being connected with the piston of described oil cylinder in this passage.
3. mould core pulling mechanism as claimed in claim 2, it is characterised in that the angle of inclination on described lozenges and described slide block inclined-plane is, 10 ° of ＜ ＜ 20 °.
4. mould core pulling mechanism as claimed in claim 2, it is characterised in that described shovel is connected by chute with the piston of described oil cylinder.
5. mould core pulling mechanism as claimed in claim 4, it is characterised in that described oil cylinder includes oil cylinder T block, and described shovel also includes the second T-slot matched with described oil cylinder T block.
6. mould core pulling mechanism as claimed in claim 5, it is characterised in that described chute is vertical with the axis of described piston.
7. mould core pulling mechanism as claimed in claim 6, it is characterised in that T-shaped piece of described shovel is set up separately with the second T-slot of described shovel in the adjacent two sides of described shovel.
8. mould core pulling mechanism as claimed in claim 2, it is characterised in that described shovel is threaded connection with the piston of oil cylinder.
9. mould core pulling mechanism as claimed in claim 1, it is characterised in that described slide block also includes threeth T-slot suitable with described mold insert of loosing core.
10. mould core pulling mechanism as claimed in claim 1, it is characterised in that also include wear plate, described wear plate is fixing with described shovel to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620289712.4U CN205416253U (en) | 2016-04-08 | 2016-04-08 | Mould core pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620289712.4U CN205416253U (en) | 2016-04-08 | 2016-04-08 | Mould core pulling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205416253U true CN205416253U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620289712.4U Expired - Fee Related CN205416253U (en) | 2016-04-08 | 2016-04-08 | Mould core pulling mechanism |
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| Country | Link |
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| CN (1) | CN205416253U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106426784A (en) * | 2016-11-11 | 2017-02-22 | 博戈橡胶金属（上海）有限公司 | Clutch pedal single-hydraulic-cylinder oblique loose core self-locking structure |
| CN108656477A (en) * | 2018-07-24 | 2018-10-16 | 宁波瑞元模塑有限公司 | The retreating prevention mechanism of oil cylinder |
| CN109203383A (en) * | 2018-11-22 | 2019-01-15 | 阳江市睿精模塑有限公司 | A kind of oblique demolding structure of injection molding |
| CN111940836A (en) * | 2019-05-15 | 2020-11-17 | 江苏宁兴恒力智能设备有限公司 | Stroke effectively lengthened sub-material wedge block side top structure |
-
2016
- 2016-04-08 CN CN201620289712.4U patent/CN205416253U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106426784A (en) * | 2016-11-11 | 2017-02-22 | 博戈橡胶金属（上海）有限公司 | Clutch pedal single-hydraulic-cylinder oblique loose core self-locking structure |
| CN108656477A (en) * | 2018-07-24 | 2018-10-16 | 宁波瑞元模塑有限公司 | The retreating prevention mechanism of oil cylinder |
| CN109203383A (en) * | 2018-11-22 | 2019-01-15 | 阳江市睿精模塑有限公司 | A kind of oblique demolding structure of injection molding |
| CN111940836A (en) * | 2019-05-15 | 2020-11-17 | 江苏宁兴恒力智能设备有限公司 | Stroke effectively lengthened sub-material wedge block side top structure |
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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: 20160803 |
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| CF01 | Termination of patent right due to non-payment of annual fee |