CN203680634U - Automobile EPP (foamed polypropylene) steering wheel mold - Google Patents
Automobile EPP (foamed polypropylene) steering wheel mold Download PDFInfo
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- CN203680634U CN203680634U CN201320657809.2U CN201320657809U CN203680634U CN 203680634 U CN203680634 U CN 203680634U CN 201320657809 U CN201320657809 U CN 201320657809U CN 203680634 U CN203680634 U CN 203680634U
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Abstract
The utility model discloses an automobile EPP (foamed polypropylene) steering wheel mold. The automobile EPP steering wheel mold comprises a female mold, a male mold and a cavity formed by matching the female mold and the male mold, wherein the bottom of the female mold is provided with a plurality of filling holes running through the cavity, the bottom of the inner side of the female mold is at least provided with three female mold concave cavities, a supporting block for supporting a steering wheel skeleton is arranged inside each female mold concave cavity, a female mold spring is arranged between each supporting block and the bottom of each female mold concave cavity, a male mold concave cavity is arranged on the position, corresponding to the female mold concave cavity, of the inner side of the male mold, a compression block for compressing the steering wheel skeleton is arranged in the male mold concave cavity, a male mold spring is arranged between the compression block and the bottom of the male mold concave cavity, the outermost circumference of the cavity on the female mold is provided with an annular groove, a sealing retainer ring is arranged in the annular groove, and a retainer ring spring is arranged between the sealing retainer ring and the groove. By adopting the automobile EPP steering wheel mold, the cavity can be effectively, rapidly and stably filled with EPP materials, and a molded EPP layer is compact in structure, free from sinkhole and not prone to damage and drop.
Description
Technical field
The utility model relates to vehicle steering manufacturing technology field, relates in particular to a kind of vehicle steering EPP mould.
Background technology
After automobile steering wheel framework manufacture, need to be outside skeleton coating and injection moulding layer, on common frame of handwheel, can be coated PP material or EPP expanded material, EPP material has very excellent antidetonation energy absorption performance, corrosion-resistant, good insulation preformance, and surperficial rigidity and the anti-scratch characteristic of material are fine.In addition, its quality is light, can significantly alleviate Item Weight, thereby can improve comfort and total quality that steering wheel grips.Frame of handwheel EPP foaming all passes through common mould realization now, general skeleton die comprises die and punch, in die and punch, be provided with the die cavity adapting to skeleton, die bottom is provided with charging hole, and charging hole is communicated with die cavity, skeleton is packed into after die cavity, the materials gun feeding technique in die, the backward charging hole of punch that closes, injects the material of EPP solid granular in die cavity, and mould outside is heated to 140 °, after EPP foaming, be cooled to 70 °, cooling rear demoulding removing direction dish.But in filler process, because the gap between chamber wall and the lateral surface of skeleton of die cavity is very little, EPP granule materials is large, mobile slow at narrow and small gap internal resistance, in die cavity from charging aperture away from, EPP particle cannot arrive, thereby the EPP layer that may cause final frame of handwheel to cover is inhomogeneous, steering wheel is of poor quality, and even part exists defect, causes defective products to produce; The quality of EPP layer is subject to its Effects of Density simultaneously, and the EPP layer density after common die moulding is less, and feel is poor, also easily comes off from frame of handwheel.
Chinese patent Granted publication number: CN202985966U, June 12 2013 Granted publication day, a kind of vehicle steering injection mold of openly knowing clearly, comprise upper cores, lower die and limit die, upper cores is located at lower die top, limit die is located at the both sides of upper cores and lower die, upper cores, lower die and limit die composition die cavity, upper cores is installed on cope match-plate pattern below, in cope match-plate pattern, be provided with runner, lower die is installed on lower bolster top, also comprises a centrifugal mechanism, and centrifugal mechanism drives mold rotation.Can make liquid in mould under the centrifugal force and the positive action of microseism power of centrifuge owing to being provided with centrifugal mechanism, feeding and solidifying, eliminates shrinkage cavity, reduces shrinkage porosite and even eliminate shrinkage porosite with this.Its weak point is that in this kind of injection mold, the gap between die cavity and frame of handwheel is very little, in narrow and small gap, resistance is large, flow velocity is slow for EPP granule materials, thereby cause the EPP layer of final surface of steering wheel inhomogeneous, and EPP layer density after final molding is little, compact not, feel is poor, easily damage.
Utility model content
The utility model is little in order to overcome between the die cavity of steering wheel framework mould of the prior art and frame of handwheel gap, when granular material is inserted, resistance is large, flow velocity is slow, thereby cause EPP layer to exist defect and density not to reach requirement, the deficiency that total quality is poor, provide a kind of can effectively ensure EPP granule materials quick, stable be full of die cavity, the EPP layer density after moulding greatly, not fragile, the automobile EPP steering wheel mould that comes off.
To achieve these goals, the utility model adopts following technical scheme:
A kind of automobile EPP steering wheel mould, comprise die, punch, die and punch coordinate the die cavity forming, the bottom of die is provided with the material hole of some perforation die cavities, the inside bottom of described die is at least provided with three die cavitys, in described die cavity, be provided with the back-up block for supporting frame of handwheel, between described back-up block and die cavity bottom, be provided with die spring, punch inner side is provided with punch cavity with die cavity corresponding position, in punch cavity, be provided with the compact heap for compaction direction dish skeleton, between described compact heap and punch cavity bottom, be provided with punch spring, the circumference that is positioned at die cavity outermost on described die is provided with annular groove, in described annular groove, be provided with Sealing shield ring, between Sealing shield ring and the bottom of groove, be provided with back-up ring spring, in the time of die and the complete matched moulds of punch, in the whole retraction annular grooves of Sealing shield ring.Frame of handwheel is put into die, frame of handwheel is subject to the support of back-up block, then punch is buckled in to pre-matched moulds on die, frame of handwheel is subject to back-up block simultaneously, the effect of compact heap, now die and punch do not close completely, the sealed retaining ring sealing in gap between die and punch, by die, punch, Sealing shield ring form die cavity than complete matched moulds after only by die, the die cavity that punch surrounds is large, spatial joint clearance between inwall and the frame of handwheel of die cavity is also large, then mould is carried out to preheating, after preheating, from material hole, insert EPP solid particle, because die cavity gap is large, the resistance that material is subject to is little, therefore can fill up fast whole die cavity, can there is not defect, ensure that material can envelope frame of handwheel completely, material is full of after die cavity, mould outside is heated to 140 ° of left and right, in the process of heating, the pressurization of punch outside, in the complete retraction annular groove of Sealing shield ring, realize complete matched moulds, die cavity is now less than the die cavity of pre-matched moulds state, in complete matched moulds process, material is subject to the strong extruding of die, punch, therefore the density of material has increased significantly, and finally the EPP layer density on the frame of handwheel of demoulding taking-up is large, structure is compacted, smooth surface is flexible, and entirety is complete without shrinkage cavity, can not have defect, quality is very high.
As preferably, described die cavity, the bottom of punch cavity are provided with pilot hole, are provided with bolt in pilot hole, and described back-up block, the bottom of compact heap are provided with spring storage chamber, the head of bolt is connected with the bottom of spring storage chamber, and described die spring, punch spring housing are located on bolt.Bolt can slide in pilot hole, and bolt plays position-limiting action to back-up block, compact heap, prevents that back-up block, compact heap from taking off.
As preferably, described die and punch are provided with the pore of some perforation die cavities.Mould heats by steam, and pore is convenient to steam and is entered in die cavity the Bas Discharged in die cavity, makes EPP raw material also obtain steaming simultaneously and melts.
As preferably, the middle part, inner side of described punch is provided with some frame of handwheel guide fingers.Frame of handwheel guide finger plays the effect of pre-determined bit to frame of handwheel, steering wheel can not be rotated along moving axially of frame of handwheel guide finger, during from pre-matched moulds to complete matched moulds, frame of handwheel can slide along frame of handwheel guide finger.
As preferably, the inner side of described punch is also provided with lead, and the outer end side surface of described lead is provided with buphthalmos hole, and buphthalmos hole is provided with buphthalmos button.Die is fixed, and punch is connected with tipper, tipper punch medial surface upward after, pack frame of handwheel into, and spacing by buphthalmos button, then turn over after turnback punch is buckled on die and realizes pre-matched moulds, buphthalmos button can prevent that punch frame of handwheel in upset from dropping out.
As preferably, described die spring is identical with the stiffness factor of punch spring.Can ensure that like this process from pre-matched moulds to matched moulds, the stroke of back-up block, compact heap is identical, keep the die cavity of the upper and lower both sides of frame of handwheel synchronously to dwindle, ensure the even thickness of EPP layer on final steering wheel.
As preferably, the center of described punch is provided with centre bore, and the outside of punch is provided with cylinder, and the output shaft of cylinder stretches in punch from central hole.The employing cylinder demoulding after EPP moulding completes, efficiency is high.
A kind of vehicle steering, comprises frame of handwheel, and the outside of described frame of handwheel is coated with EPP layer.
Therefore, the utlity model has can effectively ensure EPP solid particle material quick, stable be full of die cavity, the EPP layer structure after moulding compact, without shrinkage cavity, not fragile, the beneficial effect that comes off.
Brief description of the drawings
Fig. 1 is the utility model die, punch structure schematic diagram.
Fig. 2 is the top view after die in the utility model, punch coordinate.
Fig. 3 is the pre-matched moulds state in A-A place cutaway view in Fig. 2.
Fig. 4 is the complete matched moulds state in A-A place cutaway view in Fig. 2.
Fig. 5 is the pre-matched moulds state in B-B place cutaway view in Fig. 2.
In figure: die 1 punch 2 die cavity 3 material hole 4 annular groove 5 Sealing shield ring 6 back-up ring spring 7 pilot hole 8 bolt 9 spring storage chamber 10 die cavity 11 back-up block 12 die spring 13 frame of handwheel guide finger 14 lead 15 buphthalmos are buckled 16 centre bore 17 cylinder 18 frame of handwheel 19 punch cavity 21 compact heap 22 punch springs 23
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
A kind of automobile EPP steering wheel mould as shown in Figure 1 and Figure 2 and Figure 3, comprise that die 1, punch 2, die and punch coordinate the die cavity 3 forming, the bottom of die 1 is provided with the material hole 4 of several perforation die cavities, and die 1 and punch 2 are provided with the pore of some perforation die cavities.The inside bottom of die 1 is at least provided with three die cavitys 11, in the present embodiment, be provided with four die cavitys, in die cavity 11, be provided with the back-up block 12 for supporting frame of handwheel, between back-up block and die cavity bottom, be provided with die spring 13, punch 2 inner sides and die cavity corresponding position are provided with punch cavity 21, in punch cavity, be provided with the compact heap 22 for compaction direction dish skeleton, between compact heap and punch cavity bottom, be provided with punch spring 23, die spring 13 is identical with the stiffness factor of punch spring 23, die cavity 11, the bottom of punch cavity 21 is provided with pilot hole 8, in pilot hole, be provided with bolt 9, back-up block 12, the bottom of compact heap 22 is provided with spring storage chamber 10, the head of bolt is connected with the bottom of spring storage chamber, die spring, punch spring housing is located on bolt, back-up block, compact heap can be respectively at die cavity, flexible in punch cavity, bolt can slide along pilot hole, bolt can also limit back-up block, compact heap is deviate from, the circumference that is positioned at die cavity outermost on die is provided with annular groove 5, is provided with Sealing shield ring 6 in annular groove 5, between Sealing shield ring and the bottom of groove, is provided with back-up ring spring 7, in the time of die and the complete matched moulds of punch, in the whole retraction annular grooves of Sealing shield ring, the center of punch 2 is provided with centre bore 17, and the outside of punch is provided with cylinder 18, and the output shaft of cylinder stretches in punch from central hole.
As shown in figures 1 and 3, the middle part, inner side of punch 2 is provided with some frame of handwheel guide fingers 14, as shown in Figure 5, the inner side of punch 2 is also provided with lead 15, the outer end side surface of lead is provided with buphthalmos hole, buphthalmos hole is provided with buphthalmos button 16, die is fixed, punch is connected use with tipper, on frame of handwheel middle part direction of insertion dish skeleton guide finger and lead, then fasten with buphthalmos button, thereby prevent that tipper is in upset punch, frame of handwheel drops, and after EPP moulding completes, can pass through the cylinder demoulding.
A kind of vehicle steering, comprises frame of handwheel, and the outside of frame of handwheel is coated with EPP layer.This kind of steering wheel quality is light, good hand touch, long service life.
By reference to the accompanying drawings, using method of the present utility model is as follows: die is fixed on rotating turret, punch is arranged on tipper cursor, first punch is turned to locating dowel state upward, frame of handwheel is arranged on punch and by buphthalmos button and is fastened, cursor is buckled on die after punch is turned over to turnback, now the downside of frame of handwheel is subject to the support of back-up block, upside is subject to the compression of compact heap, between die and punch die joint, there is gap, this gap is sealed retaining ring sealing just in time, now between die and punch in pre-matched moulds state, die cavity is at die, punch, under Sealing shield ring three acting in conjunction, form the space of sealing, i.e. state as shown in Figure 3, the volume of the die cavity under pre-matched moulds state is greater than the mold cavity volume after complete matched moulds, now the gap between inwall and the frame of handwheel of die cavity is large, then make material hole upward the whole die flip after pre-matched moulds, then in material hole, insert EPP solid granule by spray gun, because mold cavity volume is large, gap between die cavity and frame of handwheel is also large, EPP granule flow resistance is little, therefore can be full of at short notice whole die cavity completely, the outer periderm EPP material of frame of handwheel is completely coated, there is not defect, after EPP material is full of, whole mould is put into vaporium, divide three steps that steam is passed into from pore in the die cavity of mould, discharge on the one hand the air in die cavity, making on the other hand EPP material obtain steaming melts, be convenient to rapid shaping, in the process of logical steam, die, the pressurization of punch outside, make the die joint of punch and the complete gluing, sealing of the die joint of die form complete matched moulds, i.e. state as shown in Figure 4, back-up block, the synchronous retraction die of compact heap cavity, in punch cavity, in the automatic retraction annular groove of annular retaining ring, the EPP material of the molten condition in die cavity is subject to the strong extruding of die cavity inwall, can eliminate shrinkage cavity, compact more in EPP layer surface simultaneously, not fragile, be attached on frame of handwheel more stable, difficult drop-off, last cooling and demolding, drying and shaping.Therefore, the utlity model has can effectively ensure EPP solid particle material quick, stable be full of die cavity, the EPP layer structure after moulding compact, without shrinkage cavity, not fragile, the beneficial effect that comes off.
The above embodiment has only expressed detailed description of the invention of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (7)
1. an automobile EPP steering wheel mould, comprise die (1), punch (2), die and punch coordinate the die cavity (3) forming, the bottom of die (1) is provided with the material hole (4) of some perforation die cavities, it is characterized in that, the inside bottom of described die (1) is at least provided with three die cavitys (11), in described die cavity (11), be provided with the back-up block (12) for supporting frame of handwheel (19), between described back-up block and die cavity bottom, be provided with die spring (13), punch (2) inner side is provided with punch cavity (21) with die cavity corresponding position, in punch cavity, be provided with the compact heap (22) for compaction direction dish skeleton, between described compact heap and punch cavity bottom, be provided with punch spring (23), the circumference that is positioned at die cavity outermost on described die is provided with annular groove (5), in described annular groove (5), be provided with Sealing shield ring (6), between Sealing shield ring and the bottom of groove, be provided with back-up ring spring (7), in the time of die and the complete matched moulds of punch, in the whole retraction annular grooves of Sealing shield ring.
2. automobile EPP steering wheel mould according to claim 1, it is characterized in that, described die cavity (11), the bottom of punch cavity (21) are provided with pilot hole (8), in pilot hole, be provided with bolt (9), described back-up block (12), the bottom of compact heap (22) are provided with spring storage chamber (10), the head of bolt is connected with the bottom of spring storage chamber, and described die spring, punch spring housing are located on bolt.
3. automobile EPP steering wheel mould according to claim 1 and 2, is characterized in that, described die (1) and punch (2) are provided with the pore of some perforation die cavities.
4. automobile EPP steering wheel mould according to claim 1, is characterized in that, the middle part, inner side of described punch (2) is provided with some frame of handwheel guide fingers (14).
5. according to the automobile EPP steering wheel mould described in claim 1 or 4, it is characterized in that, the inner side of described punch (2) is also provided with lead (15), and the outer end side surface of described lead is provided with buphthalmos hole, and buphthalmos hole is provided with buphthalmos button (16).
6. automobile EPP steering wheel mould according to claim 1, is characterized in that, described die spring (13) is identical with the stiffness factor of punch spring (23).
7. automobile EPP steering wheel mould according to claim 5, it is characterized in that, the center of described punch (2) is provided with centre bore (17), and the outside of punch is provided with cylinder (18), and the output shaft of cylinder stretches in punch from central hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657809.2U CN203680634U (en) | 2013-10-23 | 2013-10-23 | Automobile EPP (foamed polypropylene) steering wheel mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657809.2U CN203680634U (en) | 2013-10-23 | 2013-10-23 | Automobile EPP (foamed polypropylene) steering wheel mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203680634U true CN203680634U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320657809.2U Expired - Fee Related CN203680634U (en) | 2013-10-23 | 2013-10-23 | Automobile EPP (foamed polypropylene) steering wheel mold |
Country Status (1)
| Country | Link |
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| CN (1) | CN203680634U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552200A (en) * | 2013-10-23 | 2014-02-05 | 苏州泽汉汽车零部件有限公司 | Automobile EPP (foamed polypropylene) steering wheel mould and automobile steering wheel |
| CN106042290A (en) * | 2016-08-05 | 2016-10-26 | 南通超达装备股份有限公司 | Automobile steering wheel mold |
| CN107696404A (en) * | 2017-09-22 | 2018-02-16 | 南通超达装备股份有限公司 | A kind of steering wheel mould with skeleton |
| CN107790671A (en) * | 2017-10-25 | 2018-03-13 | 重庆交通职业学院 | A kind of vehicle steering automates Die Casting equipment |
-
2013
- 2013-10-23 CN CN201320657809.2U patent/CN203680634U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552200A (en) * | 2013-10-23 | 2014-02-05 | 苏州泽汉汽车零部件有限公司 | Automobile EPP (foamed polypropylene) steering wheel mould and automobile steering wheel |
| CN103552200B (en) * | 2013-10-23 | 2017-02-15 | 苏州泽汉汽车零部件有限公司 | Automobile EPP (foamed polypropylene) steering wheel mould and automobile steering wheel |
| CN106042290A (en) * | 2016-08-05 | 2016-10-26 | 南通超达装备股份有限公司 | Automobile steering wheel mold |
| CN107696404A (en) * | 2017-09-22 | 2018-02-16 | 南通超达装备股份有限公司 | A kind of steering wheel mould with skeleton |
| CN107696404B (en) * | 2017-09-22 | 2020-01-14 | 南通超达装备股份有限公司 | Steering wheel mold with framework |
| CN107790671A (en) * | 2017-10-25 | 2018-03-13 | 重庆交通职业学院 | A kind of vehicle steering automates Die Casting equipment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20161023 |