CN103332224A - Automobile trim and preparation device and preparation method thereof - Google Patents
Automobile trim and preparation device and preparation method thereof Download PDFInfo
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- CN103332224A CN103332224A CN2013103111092A CN201310311109A CN103332224A CN 103332224 A CN103332224 A CN 103332224A CN 2013103111092 A CN2013103111092 A CN 2013103111092A CN 201310311109 A CN201310311109 A CN 201310311109A CN 103332224 A CN103332224 A CN 103332224A
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Abstract
The invention discloses an automobile trim, which comprises a plus material and a plastic piece connected with the plug material in an injection molding way, wherein the plus material comprises a non-woven fabric layer which is connected with the plastic piece in an injection molding way and a textile layer which is fixedly connected with the non-woven fabric layer. Meanwhile, the invention discloses a preparation device and a preparation process of the automobile trim. The plastic piece is connected with the plus material in an injection molding way by adopting a low-pressure injection molding process during injection molding of the plastic piece, and the molding and combination of the plus material and a plastic product are finished inside a mold, so that the production efficiency is increased greatly, and the labor cost is reduced; moreover, mold production is adopted, so that the quality of each product is the same; and meanwhile, the application of glue is eliminated in the low-pressure injection molding process, so that pollution in a production environment is zero.
Description
Technical field
The present invention relates to field of mechanical technique, particularly relate to a kind of automotive trim and preparation facilities thereof and preparation method.
Background technology
Middle and high end, market car sales volume sustainable growth at home, high-quality high-end product demand will constantly increase, and the environment protection health theory is in fashion, the automotive trim product also begins leading green concept, the environment protection health series products will be a megatrend of development of automobile, improve the room fit one's leisure and exercise demands design in the car, improve the traveling comfort of taking, also widely adopted by medium-to-high grade car.
Traditional automobile A, B post formation process are, are to use the Mold Making moulding with A, B post plastic part at first, then by manually with coating viscosity glue on the Plastic Parts, bond with nonwoven fabrics and Plastic Parts again, at last unnecessary nonwoven fabrics is pruned away to finish this work.This process need carries out three step operations to be finished, the one, injection mo(u)lding, the 2nd, coating viscosity glue covers nonwoven fabrics, the 3rd, prune nonwoven fabrics, in this process, will use harmful toxic solvent, not only harmful to the operating personal that is coated with coating viscosity glue, also exist problem such as aerial contamination to take place simultaneously, it is narrow and small to add the automobile interior space, cause the more serious of in-vehicle air pollution and peculiar smell, simultaneously, coating viscosity glue again behind plastic piece shaping makes nonwoven fabrics many with the operation that Plastic Parts is pasted together, need personnel also many, long processing time, and the quality instability of pasting form the expensive production model of the subquality.Simultaneously, aforesaid operations is finished by artificial conveyor line, so each workman has just determined that to the skill level difference of working the quality of product is inconsistent.
Summary of the invention
The objective of the invention is at the technological deficiency that exists in the prior art, and a kind of automotive trim of processing simple and safety and environmental protection and a kind of low-pressure injection molding equipment and injection moulding process thereof that can simultaneously fabric be connected with its injection moulding in the Plastic Parts injection mo(u)lding are provided.
For realizing that the technical scheme that purpose of the present invention adopts is:
A kind of automotive trim comprises fabric and the Plastic Parts that is connected with described fabric injection moulding, and described fabric comprises the nonwoven layer that is connected with the Plastic Parts injection moulding and the tissue layer of captiveing joint with described nonwoven layer.
Described fabric thickness is at 1.2-1.4mm; Described tissue layer thickness is at 0.4-0.6mm, and described nonwoven layer thickness is at 0.6-1mm.
The volume ratio of described fabric and Plastic Parts is 1:8-10.
A kind of preparation facilities for preparing automotive trim as claimed in claim 1, comprise the low-pressure injection molding mould and pick and place the integral type manipulator, comprise fixed half and moving half, described dynamic model comprises base plate, be fixedly installed on the die cavity on the described base plate, and a plurality of dossal pins that are arranged on the die cavity periphery, the outside of described dossal pin is formed with edge structure in order to when fabric is subjected to tension force it is severed; Described cover half comprises panel, the hot runner manifold of captiveing joint with described panel, the core of captiveing joint with described hot runner manifold, and ejecting mechanism and Re Zui, be provided with described dossal in the periphery of described core projection and interfere avoiding at the through hole of answering, also be provided with a plurality of pressers at described projection periphery.
Described presser comprises several grooves that are arranged on the core periphery, can be contained in the briquetting of described inside grooves and be arranged on groove and briquetting between be used for when pressurized not, described briquetting outer end being ejected the ejector spring of groove.
Described dossal pin is the triangle cone structure.
The described integral type manipulator that picks and places comprises the mechanical arm that can move along moving track, what rotatably be fixedly installed on both sides, mechanical arm bottom respectively gets cloth support plate and pickup support plate, described cloth support plate and the pickup support plate got can be driven at horizontal station respectively and vertically switched between station, described getting is set with at least one group on the cloth support plate and gets cloth apparatus, the described cloth apparatus of getting comprises in order to the airborne laser range finder of sensing apart from the cloth distance, be arranged on the dossal mechanism of airborne laser range finder both sides, be set with at least one group of corresponding pick-off unit on the described pickup support plate, described pick-off unit comprises the strut bar of captiveing joint with described pickup support plate and is fixedly installed on the strut bar end also can controlled sucker with moulding sticking or release.
Pickup support plate around the described sucker is provided with corresponding with moulding and can controlled clamping or discharge the clamping bar of moulding, shown in clamping bar moved by cylinder or motor-driven.
A kind of preparation method of automotive trim as claimed in claim 4 may further comprise the steps,
1) utilize manipulator cloth to be installed on the dossal pin of dynamic model;
2) injection machine matched moulds, cloth can touch the cover half core earlier, and cloth can and paste core and move along with the distortion of the present situation of core, and when mould was closed into preset distance, the presser that is fixed on the cover half side can be pushed down cloth earlier,
3) continue close die until the gap of die joint at 1/3rd to 1/2nd of fabric thickness;
4) carry out injection mo(u)lding and the demoulding and get material.
Clamp force is 600-800T during injection moulding, maximum injection pressure 2-4bar, and pressure switches 2-4bar, and injection time is 3-5s, and the dwell time is 13-16s.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention adopts low-pressure injection molding technology in the Plastic Parts injection mo(u)lding it to be connected with the fabric injection moulding in the lump, finish moulding and the combination of fabric and plasthetics at mould inside, thereby improved the input that production efficiency has reduced human cost greatly, and because be mould production, so each Products Quality is the same; Low-pressure injection molding technology has lacked the application to glue simultaneously, so the pollution of goods environment is zero.
The mould that preparation facilities of the present invention adopts adopts the upside-down mounting mode, and as dynamic model, core is as cover half with die cavity, advance glue and eject in the same cover half side of mould, simultaneously design blade in pilot pin, can sever fabric when realizing the fabric tension, guarantee that fabric can be because tightly not being out of shape by La Detai; Be placed in the mould in order to guarantee that fabric is unruffled, cover half is provided with uses presser, and behind setpoint distance, cloth can touch the cover half core earlier at the mould matched moulds, and cloth can and paste core and move along with the distortion of the present situation of core.When mould was closed into 15 millimeters, the bullet piece that is fixed on the cover half side can be pushed down cloth earlier, made the cloth can wrinkling close die; The injected plastic moulding guarantees product design and outward appearance then.Simultaneously, the manipulator of preparation facilities of the present invention adopts mechanical arm to drive the pickup support plate and gets the cloth support plate, realize carrying out synchronously of dossal and pickup, effectively improved whole efficiency and automatization level, simultaneously as preferred version, finished when can realize two mouldings, under once moving, can finish mechanical arm feed and the pickup of two mouldings, avoid a large amount of reciprocating actions of mechanical arm, enhance productivity, cut down the consumption of energy.
Adopt injection moulding process of the present invention to prepare automotive trim, the direct injection moulding of Plastic Parts and fabric is connected, effectively avoided the too much use of glue, the operation that one-shot forming simultaneously is pasted together plastic cement and nonwoven fabrics, saved secondary processing process, beautiful, the environmental protection of the appearance of the automotive trim of made, and improved production efficiency greatly.
Description of drawings
Figure 1 shows that automotive trim cross section structure scheme drawing of the present invention;
Figure 2 shows that mould matched moulds pre-structure scheme drawing of the present invention;
Figure 3 shows that structural representation in the mould matched moulds of the present invention;
Figure 4 shows that structural representation behind the mould matched moulds of the present invention;
Figure 5 shows that robot manipulator structure scheme drawing of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
As shown in Figure 1, automotive trim of the present invention comprises fabric and the Plastic Parts 100 that is connected with described fabric injection moulding, described fabric comprises the nonwoven layer 200 that is connected with the Plastic Parts injection moulding and the tissue layer 300 of captiveing joint with described nonwoven layer, wherein, described Plastic Parts is A post, B post or the C post of automobile.Certainly need adhere to fabric at Plastic Parts for other and also can adopt this structure.Wherein, the nonwoven layer of described fabric can adopt glue to captive joint with tissue layer, and taste fast can leave after the connection.
Namely, adopt low-pressure injection molding technology in the Plastic Parts injection mo(u)lding, it to be connected with the fabric injection moulding in the lump, finish moulding and the combination of fabric and plasthetics at mould inside, thereby improved the input that production efficiency has reduced human cost greatly, and because be mould production, so each Products Quality is the same; Low-pressure injection molding technology has lacked the application to glue simultaneously, so the pollution of goods environment is zero.
Specifically, the low pressure injection formaing technology of plastic cement and fabric, be that plastics are adhered to each other by mold injection and nonwoven fabrics, the product adhesive force that produces is very strong, will never come off and ftracture in the use, and fabric is a decorative layer on automobile product surface, also has good surface abrasion resistance simultaneously.Simultaneously because not needing to add any alite paste by being injected into after the plastics high temperature melting behind the mold cavity in the speed cooling and the bonding process of nonwoven fabrics, can stop the alite paste smell and generation workshop environmental issue when producing, and the environmental issue of automotive trim.
Further, plastic cement is to enter nonwoven layer, in the zone 400 as shown in Figure 1, fabric and plastic cement is closely adhered to together.But plastic cement cannot see through nonwoven layer and arrive tissue layer to avoid influencing outward appearance, and preferably, described fabric thickness is at 1.2-1.4mm, and wherein, described tissue layer thickness is at 0.4-0.6mm, and described nonwoven layer thickness is at 0.6-1mm.The horizontal expansion rate of described fabric is at 30-35, directly to stretch ratio at 20-25.Described plastic parts is by the engineering plastics injection mo(u)lding of GR series.
Simultaneously, at the interior trimming parts of different sizes and shape, the volume ratio of described nonwoven fabrics and Plastic Parts is preferably 1:8-10, adopts the proportional arrangement of coupling, can guarantee gadget intensity and unified appearance.
To sum up, the present invention adopts low pressure injection formaing technology to make automotive trim, injection moulding is connected with fabric with Plastic Parts, effectively avoided the too much use of glue, the operation that one-shot forming simultaneously is pasted together plastic cement and nonwoven fabrics, saved secondary processing process, beautiful, the environmental protection of the appearance of the automotive trim of made, and improved production efficiency greatly.
Shown in Fig. 2-4, of the present inventionly comprise mould and pick and place the integral type manipulator for the making apparatus that simultaneously fabric is connected with its injection moulding in the Plastic Parts injection mo(u)lding, wherein, described mould comprises dynamic model 1 and cover half 2, wherein said dynamic model comprises base plate 11, be fixedly installed on the die cavity 12 on the described base plate, and a plurality of dossal pins 14 that are arranged on the die cavity periphery, described die cavity center is provided with default cavity 13, described cavity is the profile of injection mo(u)lding, described dossal pin be arranged on cavity periphery in case with fabric is supported.Because fabric 3 time is flat hanging over outside the cavity on the side plane in beginning, fabric can be pressed in the cavity of die cavity when matched moulds, drawn too tight and be out of shape for fear of fabric, the outside of described dossal pin is formed with edge structure in order to when fabric is subjected to tension force it is severed, preferably, described dossal pin is the triangle cone structure, and the dossal pin of triangle taper can effectively guarantee dossal and cut carrying out smoothly of cloth action.
Described cover half 2 comprises panel 21, the hot runner manifold 22 of captiveing joint with described panel, the core 23 of captiveing joint with described hot runner manifold, and ejecting mechanism 24 and hot mouth 25, design and the prior art of described panel, hot runner manifold ejecting mechanism and hot mouth are similar, do not repeat them here.
Described core 23 middle parts are formed with the projection 26 with described die cavity coupling, and the space behind the projection insertion cavity namely constitutes the face shaping of moulding after injection moulding.The design consideration different product specification of cavity and projection and having nothing in common with each other is no longer launched to describe at this.Be provided with described dossal in the periphery of described core projection and interfere avoiding at the through hole of answering or groove, simultaneously in order to improve the control to fabric, also be provided with a plurality of pressers at described projection periphery, described presser comprises the groove 27 that is arranged on the core, can be contained in the briquetting 28 of described inside grooves and be arranged on groove and briquetting between be used for when pressurized not, described briquetting outer end being ejected the ejector spring 29 of groove.When matched moulds arrives preset distance, briquetting can hold the cavity periphery of die cavity with its combined action clamping cloth, what fabric was severed when the briquetting that utilizes flexible power to support can guarantee matched moulds is stable, namely maintains predetermined tension force and can not be out of shape again, guarantees that fabric is fitted on the core.
Mould of the present invention adopts the upside-down mounting mode, and as dynamic model, core is as cover half with die cavity, advance glue and eject in the same cover half side of mould, simultaneously design blade in pilot pin, can sever fabric when realizing the fabric tension, guarantee that fabric can be because tightly not being out of shape by La Detai; Be placed in the mould in order to guarantee that fabric is unruffled, cover half is provided with uses presser, and behind setpoint distance, cloth can touch the cover half core earlier at the mould matched moulds, and cloth can and paste core and move along with the distortion of the present situation of core.When mould was closed into 15 millimeters, the bullet piece that is fixed on the cover half side can be pushed down cloth earlier, made the cloth can wrinkling close die; The injected plastic moulding guarantees product design and outward appearance then.
Adopt the mould one-shot forming demoulding of the present invention smooth and easy, and adopt low-pressure injection molding technology in the Plastic Parts injection mo(u)lding, it to be connected with the fabric injection moulding in the lump, finish moulding and the combination of fabric and plasthetics at mould inside, thereby improved the input that production efficiency has reduced human cost greatly, and because be mould production, so each Products Quality is the same; Low-pressure injection molding technology has lacked the application to glue simultaneously, so the pollution of goods environment is zero.Specifically, plastic cement and nonwoven fabrics adopt low pressure injection formaing technology, be that plastics are adhered to each other by mold injection and nonwoven fabrics, the product adhesive force that produces is very strong, will never come off and ftracture in the use, and nonwoven fabrics is a decorative layer on automobile product surface, also has good surface abrasion resistance simultaneously.Because not needing to add any alite paste by being injected into after the plastics high temperature melting behind the mold cavity in the speed cooling and the bonding process of nonwoven fabrics, can stop the alite paste smell and produce workshop environmental issue and the environmental issue of automotive trim when producing.
As shown in Figure 5, the integral type manipulator that picks and places of the present invention comprises the mechanical arm 01 that can move along moving track, what rotatably be fixedly installed on both sides, mechanical arm bottom respectively gets cloth support plate 02 and pickup support plate 03, described cloth support plate 02 and the pickup support plate 03 got can be driven at horizontal station respectively and vertically switched between station, described get to be set with on the cloth support plate 02 get cloth apparatus, the described cloth apparatus of getting comprises in order to the airborne laser range finder 021 of sensing apart from the cloth distance, be arranged on the aciculiform clamper 022 of airborne laser range finder both sides, fixedly install pick-off unit on the described pickup support plate 03, described pick-off unit comprises the strut bar 031 of captiveing joint with described pickup support plate and is fixedly installed on the strut bar end also can controlled sucker with moulding sticking or release.
Wherein, described mechanical arm can be set mobile along the track follow procedure, it can cooperate the material loading of realizing mould, get operations such as material, described cloth support plate and the pickup support plate got is as the carrier of getting cloth apparatus or pick-off unit, can adopt tabular or tower structure, it is combined modes such as track and designs with the adopted sprocket wheel of mechanical arm, can finish with it and vertically to get material and horizontal blowing and move and to be advisable, both can realize moving and not interfere by multiple modes such as size or Stroke Control simultaneously, guarantee the stationarity of overall operation.Described aciculiform clamper comprises cylinder and prong, for ease of with the cloth gripping and can discharge, described aciculiform clamper is arranged in pairs, every pair is the herringbone setting, the distance of utilizing the airborne laser range finder sensing to get cloth support plate and cloth 3 is correspondingly controlled the mechanical arm action then, just cloth is pierced through when stretching out and is not influenced down one deck when prong drives, and the prong that penetrates just in time with the cloth clamping to move with it.
Further, for improve to corresponding with moulding around the described sucker can controlled clamping or discharge the clamping bar 33 of moulding 8, shown in clamping bar by cylinder or motor-driven action, utilize the co-located of sucker and clamping bar, can improve the stability that picks and places of moulding, avoid falling situation and take place.
Further, the described cloth apparatus of getting is at least two groups, it is disposed on up and down gets on the cloth support plate, and described pick-off unit is at least two groups, its at interval in the upper and lower correspondence be arranged on the pickup support plate, get cloth and the corresponding two groups of moulds of pick-off unit difference for two groups, finish when can realize two mouldings, under mechanical arm once moves, can finish feed and the pickup of two mouldings, avoid a large amount of reciprocating actions of mechanical arm, enhance productivity, cut down the consumption of energy.
When concrete work, bed of cloth is folded to be placed on the cloth platform, get the cloth support plate and driven half-twist to the right, simultaneously mechanical arm is got cloth apparatus with two groups of support plate and is moved to the cloth top, the distance of airborne laser range finder sensing support plate and the superiors' cloth is controlled two groups of prongs of getting a plurality of aciculiform clampers on the cloth apparatus then and is stretched out that the cloth of the superiors is taken away, this moment, mould was finished one group of injection mo(u)lding, driving is got the cloth support plate to vertical station and will be got the transfer that dossal side that cloth apparatus moves to mould is finished two groups of clothes, move to the moulding side then, under the cooperation of ejecting mechanism, finish the sticking of two mouldings, the clamping location, mechanical arm drive support plate withdraws to avoid to interfere with mould then, mechanical arm moves to belt conveyor and controls pickup support plate half-twist left in the time of injection mo(u)lding, be placed on two mouldings on the belt conveyor together, move to then and continue to get the cloth operation on the cloth platform, reciprocal in this way.
The A post or the B post that with the moulding are automobile below further specify injection moulding process of the present invention: described fabric comprises the nonwoven layer that is connected with the Plastic Parts injection moulding and the tissue layer of captiveing joint with described nonwoven layer, described fabric thickness is at 1.2mm, described tissue layer thickness is at 0.5mm, described nonwoven layer thickness is at 0.7mm
May further comprise the steps,
1) utilize manipulator cloth to be installed on the dossal pin of dynamic model;
2) injection machine matched moulds, cloth can touch the cover half core earlier, and cloth can and paste core and move along with the distortion of the present situation of core, and when mould was closed into 15mm, the presser that is fixed on the cover half side can be pushed down cloth earlier,
3) continue close die until the gap of die joint at 0.4mm; The die joint of common die needs tight the cooperation, and low head injection mould of the present invention, can not tightly cooperate so die joint needs design gaps because fabric being arranged on mould.Gap length is very much problem, has stayed and has produced batch peak, stays to have lacked and damages fabric by pressure, is advisable with 0.4mm for present embodiment.
4) carry out injection mo(u)lding and the demoulding and get material, wherein, clamp force is 700T, maximum injection pressure 3bar; Pressure switches 3bar, injection time 4s, dwell time 15s.
Adopt mould of the present invention to make automotive trim by low pressure injection formaing technology, injection moulding is connected with fabric with Plastic Parts, effectively avoided the too much use of glue, the operation that one-shot forming simultaneously is pasted together plastic cement and nonwoven fabrics, saved secondary processing process, beautiful, the environmental protection of the appearance of the automotive trim of made, and improved production efficiency greatly.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. an automotive trim is characterized in that, comprises fabric and the Plastic Parts that is connected with described fabric injection moulding, and described fabric comprises the nonwoven layer that is connected with the Plastic Parts injection moulding and the tissue layer of captiveing joint with described nonwoven layer.
2. automotive trim as claimed in claim 1 is characterized in that, described fabric thickness is at 1.2-1.4mm; Described tissue layer thickness is at 0.4-0.6mm, and described nonwoven layer thickness is at 0.6-1mm.
3. automotive trim as claimed in claim 2 is characterized in that, the volume ratio of described fabric and Plastic Parts is 1:8-10.
4. preparation facilities for preparing automotive trim as claimed in claim 1, it is characterized in that, comprise the low-pressure injection molding mould and pick and place the integral type manipulator, comprise fixed half and moving half, described dynamic model comprises base plate, be fixedly installed on the die cavity on the described base plate, and a plurality of dossal pins that are arranged on the die cavity periphery, the outside of described dossal pin is formed with edge structure in order to when fabric is subjected to tension force it is severed; Described cover half comprises panel, the hot runner manifold of captiveing joint with described panel, the core of captiveing joint with described hot runner manifold, and ejecting mechanism and Re Zui, be provided with described dossal in the periphery of described core projection and interfere avoiding at the through hole of answering, also be provided with a plurality of pressers at described projection periphery.
5. preparation facilities as claimed in claim 4, it is characterized in that, described presser comprises several grooves that are arranged on the core periphery, can be contained in the briquetting of described inside grooves and be arranged on groove and briquetting between be used for when pressurized not, described briquetting outer end being ejected the ejector spring of groove.
6. preparation facilities as claimed in claim 5 is characterized in that, described dossal pin is the triangle cone structure.
7. preparation facilities as claimed in claim 6, it is characterized in that, the described integral type manipulator that picks and places comprises the mechanical arm that can move along moving track, what rotatably be fixedly installed on both sides, mechanical arm bottom respectively gets cloth support plate and pickup support plate, described cloth support plate and the pickup support plate got can be driven at horizontal station respectively and vertically switched between station, described getting is set with at least one group on the cloth support plate and gets cloth apparatus, the described cloth apparatus of getting comprises in order to the airborne laser range finder of sensing apart from the cloth distance, be arranged on the dossal mechanism of airborne laser range finder both sides, be set with at least one group of corresponding pick-off unit on the described pickup support plate, described pick-off unit comprises the strut bar of captiveing joint with described pickup support plate and is fixedly installed on the strut bar end also can controlled sucker with moulding sticking or release.
8. preparation facilities as claimed in claim 7 is characterized in that, the pickup support plate around the described sucker is provided with corresponding with moulding and can controlled clamping or discharge the clamping bar of moulding, shown in clamping bar moved by cylinder or motor-driven.
9. the preparation method of an automotive trim as claimed in claim 4 is characterized in that, may further comprise the steps,
1) utilize manipulator cloth to be installed on the dossal pin of dynamic model;
2) injection machine matched moulds, cloth can touch the cover half core earlier, and cloth can and paste core and move along with the distortion of the present situation of core, and when mould was closed into preset distance, the presser that is fixed on the cover half side can be pushed down cloth earlier,
3) continue close die until the gap of die joint at 1/3rd to 1/2nd of fabric thickness;
4) carry out injection mo(u)lding and the demoulding and get material.
10. preparation method as claimed in claim 9 is characterized in that, clamp force is 600-800T during injection moulding, maximum injection pressure 2-4bar, and pressure switches 2-4bar, and injection time is 3-5s, and the dwell time is 13-16s.
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| CN104002741A (en) * | 2014-05-12 | 2014-08-27 | 宁波华众塑料制品有限公司 | Vehicle interior trimming assembly and manufacturing method thereof |
| CN104708755A (en) * | 2013-12-17 | 2015-06-17 | 宁波安通林华翔汽车零部件有限公司 | Fabric coated one-time injection molding die structure |
| CN105128257A (en) * | 2015-09-09 | 2015-12-09 | 高精科技(苏州)有限公司 | Automatic terminal assembling jig of oil filtering cover |
| CN105172067A (en) * | 2015-10-16 | 2015-12-23 | 宁波瑞元模塑有限公司 | Low-pressure injection mold |
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| US20180112351A1 (en) * | 2016-10-24 | 2018-04-26 | Wholeknit International Co., Ltd. | Cloth positioner for continuous processing |
| CN108582644A (en) * | 2018-05-21 | 2018-09-28 | 重庆市魏来雄鑫橡塑制品有限责任公司 | Auto parts machinery injection moulding apparatus |
| CN110978427A (en) * | 2019-12-30 | 2020-04-10 | 青岛海泰科模具有限公司 | Side-face reverse-buckled fabric cutting injection mold and fabric cutting method |
| CN113021771A (en) * | 2021-02-25 | 2021-06-25 | 东风延锋汽车饰件系统有限公司 | Low-pressure injection molding skin cutting mold structure and using method thereof |
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