CN207206962U - A kind of injection mold of stator skeleton - Google Patents

A kind of injection mold of stator skeleton Download PDF

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Publication number
CN207206962U
CN207206962U CN201721152885.2U CN201721152885U CN207206962U CN 207206962 U CN207206962 U CN 207206962U CN 201721152885 U CN201721152885 U CN 201721152885U CN 207206962 U CN207206962 U CN 207206962U
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CN
China
Prior art keywords
mould
demoulding
stripper
stator skeleton
stripper rings
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CN201721152885.2U
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Chinese (zh)
Inventor
王统良
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Taizhou Sanding Plastic Co Ltd
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Taizhou Sanding Plastic Co Ltd
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Priority to CN201721152885.2U priority Critical patent/CN207206962U/en
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Abstract

The utility model discloses a kind of injection mold of stator skeleton; including lower mould and upper mould; the die cavity for shaped article outer surface is provided between the lower mould and upper mould; the cast gate connected with die cavity is provided with the upper mould; the core and mould emptier for shaped article inner surface are provided with the lower mould; the mould emptier includes the drive device that the stripper rings being slideably positioned on lower mould and driving stripper rings are slided, and the top surface of the stripper rings is located in the die cavity.Because the contact area of stripper rings and product is larger, so being not easy to deform on product top in knockout course, stripper rings can carry out the secondary demoulding, precise structure, automaticity height automatically after ejecting product.

Description

A kind of injection mold of stator skeleton
Technical field
Injection mold is the utility model is related to, more particularly to a kind of injection mold of stator skeleton.
Background technology
Injection mold is typically made up of lower mould and upper mould, and when upper die and lower die engage, liquid plastics enter upper through cast gate The mold cavity that mould and lower mould surround, after plastics cooled and solidified, upper die and lower die separation, then mould emptier start action with Complete the separation of product and mould.The design of mould has been largely fixed the quality of product.
As shown in Fig. 2 existing skeleton of stator of motor includes main ring 51 and some coiling stakes 52 on main ring 51, Some mounting holes 53 are offered on main ring 51.It is used for the injection mold for manufacturing the stator skeleton in currently available technology, after die sinking Ejection push rod, product and lower mould are separately completed to be stripped inside from lower mould.Because coiling stake 52 is between lower mould and die cavity, and It is larger with the contact area of die cavity, so product is larger with the frictional force of lower mould in the demoulding, and the main ring 51 that push rod is pushed up Relatively thin, push rod easily deforms product top during the demoulding, and the fraction defective of product is higher.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of injection mould of stator skeleton Tool, deformation of products can be reduced during the demoulding, reduce the fraction defective of product.
Above-mentioned technical purpose of the present utility model technical scheme is that:A kind of note of stator skeleton Mould, including lower mould, the die cavity for injection molding stator skeleton is provided with the lower mould, is provided with the lower mould de- Mold mechanism, the mould emptier include stripper rings and drive device, and the drive device is used to drive stripper rings and injection molding Stator skeleton main ring offset and out of die cavity eject stator skeleton complete the demoulding.
Pass through above-mentioned technical proposal, after product is cooled and shaped and molded in die cavity, drive device drive stripper rings from Rise in die cavity, product eject completion out of die cavity and is stripped by stripper rings, because stripper rings are generally annular, and injection molding it Stator skeleton main ring afterwards is also annular, for traditional push rod jacks up, stripper rings contact with stator skeleton main ring Area is larger, is not easy to deform on product top in knockout course, reduces the fraction defective of product.
Preferably, some demoulding passages are offered in the stripper rings, slides and is provided with for two in the demoulding passage The knockout pin of secondary ejection stator skeleton, the demoulding component for driving knockout pin to slide is provided with the lower mould.
Pass through above-mentioned technical proposal, after stripper rings extract product out of die cavity, demoulding component starts to act, and promotes de- The upward mould direction movement of tringle, further ejects product from stripper rings, convenient directly to take product away, due to stripper rings and production The contact surface of product is relatively smooth, and contact surface is most perpendicular to stripping direction, so product is easier to take off from stripper rings Go out, be not easy to deform on product top during knockout pin ejecting product.
Preferably, the demoulding component includes stripper plate and some push rods being arranged on stripper plate, the drive device Drive end be connected to stripper plate, the knockout pin in demoulding passage at the road junction of demoulding top surface of ring, the push rod It is correspondingly arranged at respectively in demoulding passage and leaves gap between knockout pin, the bottom of the stripper rings is provided with spring, described The other end of spring is fixed on stripper plate.
Pass through above-mentioned technical proposal, it is not required to separately set demoulding component, can be directly driven with the drive device of driving stripper rings Knockout pin moves, and during the demoulding, operation drive device work, then drive device promotes stripper plate to be moved to die cavity direction, while bullet Spring stress is compressed and promotes stripper rings to move, and after stripper rings complete the demoulding, stripper plate is continued to move to until restriction site, then Stripper rings can not be continued to move to, but drive device works on, and drive stripper plate to continue to move to, then spring is further compressed, Stripper plate in the motion process relative to stripper rings, push rod on stripper plate constantly close to knockout pin, push rod and knockout pin Gap is gradually reduced until that both contact with each other, and push rod continues to move to, and then knockout pin is ejected into ejection face, then knockout pin will produce Product eject from stripper rings, complete the secondary demoulding, and this process, which is not required to manual operation, to be completed, precise structure.
Preferably, it is provided between the knockout pin and demoulding passage for knockout pin to be retracted to the drawing in demoulding passage Spring, one end of the extension spring are arranged on knockout pin, and the other end of the extension spring is arranged on demoulding passage.
Pass through above-mentioned technical proposal, when being stripped Component driver knockout pin ejection die cavity, extension spring is in elongation state, complete Into after the final demoulding, demoulding component is resetted, then knockout pin is retracted original position by extension spring under elastic reaction, without manually by knockout pin Original position is pushed back, saves manpower.
Preferably, the top surface of the knockout pin flushes with the top surface of stripper rings.
Pass through above-mentioned technical proposal, liquid plastics are entirely layered on knockout pin and the top surface of stripper rings during shaping, are molded Product and the contact position of knockout pin afterwards can keep smooth as far as possible, reduce the influence to product appearance.
Preferably, the side of the stripper rings offers chute, and limited block, the limited block are fixed with the stripper rings It is slideably positioned in chute to limit the limit slip locations of stripper rings.
Pass through above-mentioned technical proposal, when stripper rings drive limited block is in contact with the end of chute, stripper rings stop moving Dynamic, then spring is further compressed so as to carry out the secondary demoulding, the length limitation of the chute displacement of stripper rings, is made twice The connection of stripping process is more compact.
Preferably, some pilot holes are provided with the stripper plate, some leads are provided with the lower mould, it is described de- Template is slidably arranged on lead by pilot hole.
The mode of being slidably connected of Pass through above-mentioned technical proposal, pilot hole and lead can effectively prevent from producing in sliding process Laterally offset, it is more steady when stripper plate is moved relative to lower mould, so that the mechanism operation connected in push pedal is more steady.
Preferably, the stripper rings are arranged on the outer fringe position of die cavity.
Pass through above-mentioned technical proposal, stripper rings eject product at the outer rim of product during the demoulding, face at the outer rim of product Product is larger, so the power that acts in unit of the product contact area of stripper rings is smaller during the demoulding, stripper rings are not easy to produce during ejection Product top deforms.
Preferably, the projection for being molded positioning hole is provided with the stripper rings.
Pass through above-mentioned technical proposal, stripper rings are while demoulding functions are played, moreover it is possible to play the work(in hole on shaped article Energy.
Preferably, the drive device is hydraulic jack.
Pass through above-mentioned technical proposal, hydraulic jack can provide sufficiently large thrust, and flexible slow, stable working, compare It is suitably for stripping process and driving force is provided.
In summary, the utility model having the beneficial effect that in contrast to prior art:Product is in the premise that can be stripped completely Under, mould emptier is not easy to deform on product top, and precise structure, and automaticity is high.
Brief description of the drawings
Fig. 1 is the stereogram of embodiment;
Fig. 2 is the stereogram of stator skeleton product;
Fig. 3 is the partial enlarged drawing at Fig. 1 A, the lower impressions of main prominent embodiment and the top surface configuration of stripper rings;
Fig. 4 is the front view before the embodiment demoulding;
Fig. 5 is Fig. 4 B-B sectional views, the internal structure before the main prominent embodiment demoulding;
Fig. 6 is the partial enlarged drawing at Fig. 5 C, the position shape of knockout pin and push rod before the main prominent embodiment demoulding State;
Fig. 7 is the front view after the embodiment demoulding;
Fig. 8 is Fig. 7 D-D sectional views, the internal structure after the main prominent embodiment demoulding;
Fig. 9 is the partial enlarged drawing at Fig. 8 E, the position shape of knockout pin and push rod after the main prominent embodiment demoulding State.
Reference:10th, pedestal;1st, lower mould;2nd, upper mould;3rd, die cavity;21st, cast gate;11st, core;4th, mould emptier;51、 Main ring;52nd, coiling stake;53rd, positioning hole;22nd, locating piece;13rd, locating slot;31st, upper impression;32nd, lower impressions;41st, stripper rings; 42nd, drive device;411st, face is ejected;412nd, projection;413rd, slideway;414th, chute;415th, limited block;420th, pilot hole;421、 Spring;422nd, stripper plate;423rd, lead;424th, hydraulic jack;61st, it is stripped passage;611st, it is stripped hole;612nd, apical pore;62nd, take off Tringle;621st, extension spring;43rd, it is stripped component;63rd, push rod;64th, gap.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.
As shown in figure 1, a kind of injection mold of stator skeleton, including pedestal 10, the lower mould 1 that is fixed on pedestal 10 and set The upper mould 2 of the lower top of mould 1 is placed in, the die cavity 3 for shaped article outer surface is provided between lower mould 1 and upper mould 2, upper mould 2 is set Be equipped with the cast gate 21 connected with die cavity 3, lower mould 1 is provided with the core 11 for shaped article inner surface, lower mould 1 and pedestal 10 it Between be provided with mould emptier 4.
As shown in Fig. 2 stator skeleton product includes main ring 51, some coiling stakes 52 on main ring 51 and some opened Positioning hole 53 on main ring 51.
As shown in figure 1, the shape of lower mould 1 and upper mould 2 is cuboid, upper mould 2 is provided with four angles of lower mould 1 Locating piece 22, the position of the lower face locating piece 22 of mould 1 offer four locating slots 13 for being used to coordinate with locating piece 22, locating piece 22 and the side of locating slot 13 are inclined-plane.
As shown in figure 5, die cavity 3 includes being opened in the upper impression 31 of mould 2 and is opened in the lower impressions 32 of lower mould 1, mo(u)ld top half Inner surface configuration after chamber 31 and lower impressions 32 combine is identical with the external surface shape of product.Core 11 is installed on lower impressions 32 Interior, the inner surface of the height of core 11 and the coiling stake 52 of product is highly identical.
As shown in figures 1 and 3, mould emptier 4 includes being slideably positioned in the stripper rings 41 of lower mould 1 and driving stripper rings 41 are transported Dynamic drive device 42.
As shown in figure 3, stripper rings 41 are hollow cylindrical structural, stripper rings 41 are ejection face close to the face of upper mould 2 411, ejection face 411 is arranged at the edge of lower impressions 32.It is provided with ejection face 411 in the position of the positioning hole 53 of product convex Block 412, ejection face 411 are used for the lower edge and positioning hole 53 for being molded main ring 51.Stripper rings 41 can be along perpendicular to ejection face 411 Slide in direction.
As shown in figure 5, the slideway 413 slided for stripper rings 41 is offered in lower mould 1, it is tight between stripper rings 41 and slideway 413 Close fit.The side of stripper rings 41 offers the chute 414 extended along the glide direction of stripper rings 41, and the lateral wall of stripper rings 41 is set Outstanding limited block 415 is equipped with, limited block 415 can slide in chute 414.Before the demoulding, limited block 415 is in chute 414 Interior maximum skidding distance is equal to the height of core 11.
One end away from ejection face 411 is provided with spring 421 in stripper rings 41, and the elastic force of spring 421 is more than stripper rings 41 The thrust sum needed for the resistance and product stripping that need to be overcome is slided in slideway 413.The other end of spring 421 is connected with the demoulding Plate 422, pilot hole 420 is offered on stripper plate 422, vertical lead 423 is provided between lower mould 1 and pedestal 10, be stripped Plate 422 is slidably arranged on lead 423 by pilot hole 420.Drive device 42 between stripper plate 422 and pedestal 10, Drive device 42 is hydraulic jack 424, and the base of hydraulic jack 424 is fixed on pedestal 10, the tailpiece of the piston rod of hydraulic jack 424 It is fixed on the plate face position of stripper plate 422.
As shown in Figure 5 and Figure 6, some demoulding passages 61, some demoulding passages are offered on the ejection face 411 of stripper rings 41 61 are centrosymmetric distribution perpendicular to ejection face 411 and around the axis of stripper rings 41.Being stripped passage 61 includes different two of internal diameter Section, wherein be the larger demoulding hole 611 of internal diameter close to one section of ejection face 411, another section away from ejection face 411 for internal diameter compared with Small apical pore 612.It is provided with demoulding hole 611 and the demoulding close-fitting knockout pin 62 in hole 611.Before the demoulding, knockout pin 62 Top surface flushes with the ejection face 411 of stripper rings 41.It is provided with extension spring 621 between knockout pin 62 and apical pore 612, the one of extension spring 621 Knockout pin 62 is fixed at end, and the other end of extension spring 621 is fixed on the inwall of apical pore 612.Lower mould 1 is provided with for driving knockout pin The demoulding component 43 of 62 ejections, demoulding component 43 include stripper plate 422 and some push rods being perpendicularly fixed on stripper plate 422 63.Some push rods 63 are slidably arranged in corresponding apical pore 612 respectively, and gap 64, gap are left between push rod 63 and knockout pin 62 64 are used for stripper rings 41 during stator skeleton product is ejected, and micro stretch of spring 421 will not make push rod 63 and the demoulding Bar 62 is in contact.
Before injection, as shown in Figure 4 and Figure 5, stripper rings 41 are located at the first of the upper surface flush of ejection face 411 and lower impressions 32 Beginning position, now hydraulic jack 424 be in most short status.Then descend that mould 1 and upper mould 2 are close to each other, and locating piece 22 is respectively clamped into Matched moulds is completed in corresponding locating slot 13.Start to be molded after the completion of matched moulds, i.e., liquid plastics enter die cavity 3, liquid from cast gate 21 Plastics form the shape of stator skeleton under the position-limiting action of the inner surface of die cavity 3 and core 11.After liquid plastics cooled and solidified, Upper mould 2 completes die sinking to the direction movement away from lower mould 1, because the overwhelming majority of product is located in lower impressions 32, so product Frictional force in lower impressions 32 is much larger than upper impression 31, so product card is in lower impressions 32 after die sinking.
During the demoulding, as shown in Figure 7 and Figure 8, operation hydraulic jack 424 extends, then hydraulic jack 424 promotes stripper plate 422 Moved toward die cavity direction, while the stress of spring 421 is compressed, but the pressure that spring 421 is subject to is still in the range of elastic force, spring 421 further promote stripper rings 41, and up the direction of mould 2 is moved.For stripper rings 41 while movement, ejection face 411 is by being against master The lower edge of ring 51, extract coiling stake 52 out completion from core 11 and be stripped for the first time.Due to ejection face 411 and main ring 51 Contact area is larger, is not easy main ring 51 pushing up deformation in knockout course.
After the completion of being stripped for the first time, limited block 415 just contradicts with the top of chute 414, then stripper rings 41 can not continue It is mobile.But hydraulic jack 424 continues to extend, stripper plate 422 is driven to continue to move to, then spring 421 is further compressed.Such as Fig. 8 Shown in Fig. 9, for stripper plate 422 in the moving process relative to stripper rings 41, stripper plate 422 drives push rod 63 towards ejection face 411 directions are moved, and then knockout pin 62 is ejected ejection face 411 by push rod 63, so as to knockout pin 62 by product from stripper rings 41 Ejection, complete the final demoulding, precise structure.
After completing the demoulding, operation hydraulic jack 424 foreshortens to most short status, then stripper rings 41 come back to ejection face 411 The initial position flushed with the surface of lower impressions 32.Now spring 421 loses partial pressure and extended again, and then drives stripper plate 422 away from stripper rings 41, then push rod 63 retract to at a certain distance from knockout pin 62, elasticity of the knockout pin 62 in extension spring 621 Set back under effect, as shown in Figure 6.It is completed as previously described one action circulation.
Described above is only exemplary embodiment of the present utility model, not for limitation protection model of the present utility model Enclose, the scope of protection of the utility model is determined by appended claim.

Claims (10)

1. a kind of injection mold of stator skeleton, including lower mould (1), it is provided with the lower mould (1) for injection molding stator The die cavity (3) of skeleton, it is characterized in that:Mould emptier (4) is provided with the lower mould (1), the mould emptier (4) includes the demoulding Ring (41) and drive device (42), the drive device (42) are used to drive stripper rings (41) and the stator skeleton master of injection molding Ring (51) offsets and ejection stator skeleton completes the demoulding out of die cavity (3).
2. a kind of injection mold of stator skeleton according to claim 1, it is characterized in that:Opened up in the stripper rings (41) There are some demoulding passages (61), the knockout pin being provided with for Double-ejection stator skeleton is slided in the demoulding passage (61) (62) demoulding component (43) for driving knockout pin (62) to slide, is provided with the lower mould (1).
3. a kind of injection mold of stator skeleton according to claim 2, it is characterized in that:The demoulding component (43) includes Stripper plate (422) and some push rods (63) being arranged on stripper plate (422), the drive end of the drive device (42) are connected to Stripper plate (422), the knockout pin (62) are located in demoulding passage (61) at the road junction of stripper rings (41) top surface, the top Bar (63) is correspondingly arranged in demoulding passage (61) and gap (64), the stripper rings (41) is left between knockout pin (62) respectively Bottom be provided with spring (421), the other end of the spring (421) is fixed on stripper plate (422).
4. a kind of injection mold of stator skeleton according to claim 2, it is characterized in that:The knockout pin (62) and the demoulding It is provided between passage (61) for knockout pin (62) to be retracted to the extension spring (621) in demoulding passage (61), the extension spring (621) One end be arranged on knockout pin (62), the other end of the extension spring (621) is arranged on demoulding passage (61).
5. a kind of injection mold of stator skeleton according to claim 2, it is characterized in that:The top surface of the knockout pin (62) Flushed with the top surface of stripper rings (41).
6. a kind of injection mold of stator skeleton according to claim 3, it is characterized in that:The side of the stripper rings (41) Chute (414) is offered, limited block (415) is fixed with the stripper rings (41), the limited block (415) is slideably positioned in cunning To limit the limit slip locations of stripper rings (41) in groove (414).
7. a kind of injection mold of stator skeleton according to claim 3, it is characterized in that:Set on the stripper plate (422) Some pilot holes (420) are equipped with, some leads (423) are provided with the lower mould (1), the stripper plate (422) is by leading It is slidably arranged in hole (420) on lead (423).
8. a kind of injection mold of stator skeleton according to claim 1, it is characterized in that:The stripper rings (41) are arranged on The outer fringe position of die cavity (3).
9. a kind of injection mold of stator skeleton according to claim 8, it is characterized in that:Set on the stripper rings (41) There is the projection (412) for being molded positioning hole (53).
10. a kind of injection mold of stator skeleton according to claim 1 or 3, it is characterized in that:The drive device (42) For hydraulic jack (424).
CN201721152885.2U 2017-09-09 2017-09-09 A kind of injection mold of stator skeleton Active CN207206962U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721152885.2U CN207206962U (en) 2017-09-09 2017-09-09 A kind of injection mold of stator skeleton

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721152885.2U CN207206962U (en) 2017-09-09 2017-09-09 A kind of injection mold of stator skeleton

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CN207206962U true CN207206962U (en) 2018-04-10

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109454821A (en) * 2018-12-18 2019-03-12 滁州迪蒙德模具制造有限公司 A kind of convenient display panel injection mould of injection molding
CN109494942A (en) * 2018-12-05 2019-03-19 上海航天控制技术研究所 A kind of constructional device of motor stator component rapid shaping
WO2020108617A1 (en) * 2018-11-30 2020-06-04 浙江三花智能控制股份有限公司 Eletromagnetic coil, mold, and electromagnetic coil manufacturing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020108617A1 (en) * 2018-11-30 2020-06-04 浙江三花智能控制股份有限公司 Eletromagnetic coil, mold, and electromagnetic coil manufacturing method
CN109494942A (en) * 2018-12-05 2019-03-19 上海航天控制技术研究所 A kind of constructional device of motor stator component rapid shaping
CN109454821A (en) * 2018-12-18 2019-03-12 滁州迪蒙德模具制造有限公司 A kind of convenient display panel injection mould of injection molding

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