CN104002879A - Automobile spare tire cover plate and processing process and processing device thereof - Google Patents
Automobile spare tire cover plate and processing process and processing device thereof Download PDFInfo
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- CN104002879A CN104002879A CN201410226912.0A CN201410226912A CN104002879A CN 104002879 A CN104002879 A CN 104002879A CN 201410226912 A CN201410226912 A CN 201410226912A CN 104002879 A CN104002879 A CN 104002879A
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- 239000000463 material Substances 0.000 claims abstract description 38
- 238000005187 foaming Methods 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims description 30
- 238000005520 cutting process Methods 0.000 claims description 26
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- 238000010438 heat treatment Methods 0.000 claims description 5
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
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Abstract
The invention discloses an automobile spare tire cover plate and a processing process and processing device thereof. The automobile spare tire cover plate is of a compound layer structure in the thickness direction and comprises a mixture layer of rigid polyurethane and fiber, a first rigid polyurethane surface layer and a second rigid polyurethane surface layer, wherein the mixture layer is formed by high-pressure foaming spraying molding and serves as a core part, and the first rigid polyurethane surface layer and the second rigid polyurethane surface layer are formed on two sides of the core part by high-pressure foaming spraying molding. According to the automobile spare tire cover plate, the thermosetting rigid polyurethane material is adopted, and high-temperature dimensional stability of the product is guaranteed after forming; in addition, the manufactured product is light and high in strength; the processing process guarantees that the product is not subject to the layered risk, product integration is achieved, the surface of the product is flat, the problem of fiber outleakage is solved, the process can achieve low VOC discharge, discharge of harmful substances in an automobile is reduced, and the riding environment in the automobile is improved; the processing device is high in automation degree, normal production can be achieved through one person, the process is simple, labor is saved, and the processing cost is reduced. The automobile spare tire cover plate is suitable for various automobiles.
Description
Technical field
The invention belongs to inside of automotive plate field, relate in a kind of automobile trunk with inner decorative panel, specifically a kind of cover plate of spare tire of automobile and processing technology thereof, Fabricating machinery.
Background technology
Cover plate of spare tire of automobile product is arranged in car trunk, and for separating tyre-well and baggage container, play the effect of covering article in spare tyre, driver's tool and carrying baggage container, apparent condition plays the effect of decorating baggage container.
Existing spare tire cover plate material selects to mainly contain PP injection moulding, PP bending block, PP wood flour board (containing hollow blowing method), hardboard etc., wherein PP injection moulding, PP bending block material resistance to heat are poor, PP material sinter point is 90-95 ℃, under high temperature, strength character reduces, can cause product generation deformation simultaneously, affect the performance of product size and load-bearing; , easily there is low temperature fracture, broken problem in PP wood flour board Material Strength, poor impact resistance; PP wood flour board, hard fibre plate material are solid construction, have increased the weight of product; Although and the product effect that adopts PP wood flour board hollow blowing method to make has reached the intensity requiring, make the double increase of product weight.
The patent No. is 201220294908.4 Chinese utility model patent, " a kind of sandwich construction automotive floor panel " disclosed, sandwich of layers by sandwiched between positive and negative top layer and two top layers forms, the fiber reinforcement that sandwich of layers is buried underground in polyurethane foaming body and polyurethane foaming body forms, and the clearance space that fiber reinforcement is formed by fibre strip entity and fibre strip splitting object forms; Positive and negative top layer is composite and fixed in described sandwich of layers the compound fixing filling polyurethane layer of melting on glass base fabric and glass base fabric by melting and forms.This floor, when manufacturing production, is launched two volume glass woven cloth relative spacings, and apply filling polyurethane layer in this two-layer glass woven cloth, to obtain positive and negative top layer; Meanwhile, between two-layer glass woven cloth, cast polyurethane foaming body in fiber reinforcement, and make polyurethane foaming body foaming, to obtain sandwich of layers, then following process operation is sent to in positive and negative top layer and sandwich of layers under the pressurize transmission effect of prolonging pressure device.The toughness on this floor is good, but this patent comprises the operations such as pre-buried skeleton, cast polyurethane foaming body, expansion glass-fiber-fabric, coating polyurethane, and operation is many, complex operation, and cost is higher.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of cover plate of spare tire of automobile, and it has adopted bi-material to be made into 3-tier architecture, uses material category few, has reduced the cost of product; Low VOC discharge, can reduce the discharge of objectionable impurities in car, improves riding environment in car.
Another object of the present invention, is to provide a kind of processing technology of above-mentioned cover plate of spare tire of automobile, and process is simple, saves manually, and degree of automation is high;
A further object of the invention, is to provide a kind of Fabricating machinery of above-mentioned cover plate of spare tire of automobile.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of cover plate of spare tire of automobile, along its thickness direction be three layers of one lamination layer structure, comprise the hard polyaminoester of high-pressure foam spray mo(u)lding and the mixture layer of fiber as core, and the spray mo(u)lding of difference high-pressure foam is in the hard polyaminoester top layer of core both sides.
As limitation of the invention: described fiber is a kind of in glass fibre, flaxen fiber, regenerated fiber, syntheticfibres, or the mixing of two kinds, or two or more mixing.
The present invention also provides the processing technology of the cover plate of spare tire of automobile of said structure, and it carries out according to following steps order:
1. hard polyaminoester carries out the vaporific lower mould that sprays to high pressure foaming machine, forms the first hard polyaminoester top layer;
2. hard polyaminoester carries out the vaporific first hard polyaminoester top layer that sprays to high pressure foaming machine, is sprinkled into Chopped fiber silk in the time of spraying, makes hard polyaminoester mix infiltration with fiber, forms the mixture layer of hard polyaminoester and fiber;
Hard polyaminoester mixes infiltration and for whole, infiltrates or partial wetting in spraying, spreading process with fiber, all infiltrations of realization behind arrival the first hard polyaminoester top layer (the whole infiltration of final realization is to lean on rise the process of hard polyaminoester in course of reaction that fibers encapsulation is infiltrated);
3. hard polyaminoester carries out the vaporific mixture layer that sprays to hard polyaminoester and fiber with high pressure foaming machine, forms the second hard polyaminoester top layer;
4. spray completely, compression molding,, by the pressurize of shaping press driven mold matched moulds, takes out workpiece, i.e. cover plate of spare tire of automobile after pressurize.
As restriction of the present invention:
Described step 1. 2. 3. in hard polyaminoester material temperature be 22-28 ℃.
Described step 1. 3. in hard polyaminoester top layer grammes per square metre be 200-500g/m
2 .
Described step 4. in, during compression molding, mold temperature is 90-110 ℃.
Described step 4. in, shaping press pressure 200T, dwell pressure is 15-22MPa, the dwell time is 75-95S.
Described step 2. in, the part by weight of hard polyaminoester and fiber is 1:1.1-1.4.
The present invention also provides a kind of Fabricating machinery of cover plate of spare tire of automobile, and it comprises two fibre cutting machines, high-pressure foam hard polyaminoester flush coater, mould, shaping press and die heater under main program control, wherein:
Two fibre cutting machines lay respectively at the both sides of high-pressure foam hard polyaminoester flush coater, between three, through being connected firmly mutually by the hitch of main program controlled motion track as whole spraying system of infiltrations or partial wetting before making angle between V-shaped distribution between the spray head of high-pressure foam hard polyaminoester flush coater and the outlet of two fibre cutting machines and spray head and the outlet hard polyaminoester that just makes ejection and the fiber spreading out arrive the counterdie of shaping press, the start and stop of fibre cutting machine, high-pressure foam hard polyaminoester flush coater are controlled by main program respectively;
Mould independently arranges, and can be placed in shaping press;
Shaping press independently arranges, and for driven mold die sinking under controlling at main program, matched moulds, and is shaped to product according to the timely chien shih material of the pressure pressurize of setting;
Die heater independently arranges, under main program is controlled by be heated oil pipe be connected to mould through heating medium by mold heated to design temperature.
As restriction of the present invention, the Fabricating machinery of described cover plate of spare tire of automobile also comprises the mechanical arm under main program control, and described mechanical arm is for capturing hitch under controlling at main program and driving it according to setting orbiting motion.
Owing to having adopted above-mentioned technical scheme, compared with prior art, obtained technological advance is in the present invention:
(1) cover plate of spare tire of automobile provided by the present invention, body has adopted thermoset hard polyurethane ester material, has guaranteed that product size at-30-90 ℃ of temperature, without significant change, has high temperature dimensional stability after moulding; In addition, responded and sent out the hard polyurethane ester material of characteristic, used a small amount of material, after reacting completely, can fill full 5-10 die cavity space doubly, reduced the use amount of material, reduced product weight, promoted lightweight level; In hard polyurethane ester material, be mixed with the fiber of environmental protection, the effect that play connection, strengthens, the gravity that product can carry 80Kg do not rupture, indeformable, has the characteristic that cost is low, intensity is high;
(2) three layers of composite bed article construction that processing technology of the present invention is made by bi-material, wherein upper and lower top layer and the common reaction bond of middle mixolimnion are whole, rather than carry out separately bonding compound by trilaminate material, eliminate that multilayer material is compound and the risk of delamination that occurs has realized product integrated.Its technological process is first to spray the first hard polyaminoester top layer, forms the hard protective film of one deck, makes lamination coating can not see through bottom; Secondly interlayer is that fiber and hard polyurethane ester material carry out mixolimnion, when fiber is unrestrained, carry out the vaporific spraying of hard polyurethane ester material, in unrestrained process, can glue and get hard polyurethane ester material, carry out fiber infiltration, finally when fiber is fallen bottom, vaporific hard polyurethane ester material covers completely to fiber again, therefore products made thereby surfacing, there will not be and have the fiber problem that leaks outside.In addition, this technique can realize low VOC discharge, reduces the discharge of objectionable impurities in car, improves riding environment in car;
(3) Fabricating machinery degree of automation of the present invention is high, can a people realize normal production, simple to operate, saves manually, cuts down finished cost.
The applicable spare tire cover plate of making various automobiles of product of the present invention.
The present invention is described in further detail below in conjunction with Figure of description and specific embodiment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is mechanical arm 4 in the embodiment of the present invention 3, fibre cutting machine 51 and 52, the spray head 6 of high-pressure foam hard polyaminoester flush coater, the position relationship of hitch 7, connecting relation schematic diagram;
In Fig. 3 embodiment of the present invention 3, fibre cutting machine 51,52, and the working state schematic representation of the shower nozzle 6 of high-pressure foam hard polyaminoester flush coater while simultaneously working;
The position relationship schematic diagram of the rubber rolling 81,82 in Fig. 4 embodiment of the present invention 3 in fibre cutting machine 51,52 and the running roller 83 of band blade.
In figure: the 1-the first hard polyaminoester top layer, the mixture layer of 2-polyurethane and fiber, the 3-the second hard polyaminoester top layer, 4-mechanical arm, 51,52-fibre cutting machine, the spray head of 6-high-pressure foam hard polyaminoester flush coater, 7-hitch, 81,82-rubber rolling, the running roller of 83-band blade, A-fibrous bundle, B-lead fibre to manage.
The specific embodiment
embodiment 1a kind of cover plate of spare tire of automobile
As shown in Figure 1, the cover plate of spare tire of automobile of the present embodiment along its thickness direction be three layers of one lamination layer structure, comprise the hard polyaminoester of high-pressure foam spray mo(u)lding and the mixture layer of fiber 2 as core, and the spray mo(u)lding of difference high-pressure foam is in the first hard polyaminoester top layer 1, the second hard polyaminoester top layer 3 of core both sides.Wherein,
Fiber is that glass fibre (can also be flaxen fiber, regenerated fiber or syntheticfibres, also can be two or more mixed of glass fibre, flaxen fiber, regenerated fiber, syntheticfibres, the kind number that will look in this case fiber be equipped with the fibre cutting machine of respective numbers).
embodiment 21-27a kind of processing technology of cover plate of spare tire of automobile
Embodiment 21-27 is respectively a kind of processing technology of cover plate of spare tire of automobile, for the product of processing and implementation example 1.They carry out according to following steps order respectively:
1. the hard polyaminoester of 22-28 ℃ carries out the vaporific lower mould that sprays to high pressure foaming machine, forms the first hard polyaminoester top layer 1, and grammes per square metre is 200-500g/m
2;
2. the hard polyaminoester of 22-28 ℃ carries out the vaporific first hard polyaminoester top layer 1 that sprays to high pressure foaming machine, in the time of spraying, be sprinkled into Chopped fiber silk, hard polyaminoester and fiber are all infiltrated or partial wetting when spraying, arrive the first rear whole infiltrations in hard polyaminoester top layer 1 (final realize all infiltrate be that the process of sending out that rises in course of reaction infiltrates fibers encapsulation by hard polyaminoester) and form the mixture layer 2 of hard polyaminoester and fiber, wherein the part by weight of hard polyaminoester and fiber is 1:1.1-1.4;
3. the hard polyaminoester of 22-28 ℃ carries out the vaporific mixture layer 2 that sprays to hard polyaminoester and fiber with high pressure foaming machine, forms the second hard polyaminoester top layer 3, and grammes per square metre is 200-500g/m
2;
4. spray completely, compression molding, drives the pressurize of 90-110 ℃ of mould matched moulds by shaping press, and the pressure of shaping press is 200T, and dwell pressure is 15-22MPa, and the dwell time is 75-95S;
After pressurize, take out workpiece, i.e. cover plate of spare tire of automobile.
In above-mentioned processing technology:
The temperature of I, raw material hard polyaminoester is 22-28 ℃, can speed of response reduces lower than 22 ℃, extends productive temp, higher than 28 ℃ can the reaction of hard polyurethane ester material too fast, complete with regard to some material reaction before material has sprayed;
The grammes per square metre on II, the first hard polyaminoester top layer 1, the second hard polyaminoester top layer 3 is 200-500g/m
2, can meet surface quality and guarantee whole weight-saving needs, the lower fiber that just can not effectively cover interlayer, higher meeting increase product weight, product surface quality affected;
III, mold temperature are set as 90-110 ℃, and object is to guarantee rational productive temp and product design, lowlyer can extend productive temp, higher meeting causes the rapid reaction of PU material to cause surface quality defect, as lacked the problems such as material, product hole.
Under IV, shaping press pressure 200T, dwell pressure is 15-22MPa, can guarantee that press can carry out pressurize moulding and cut off border the material of different-thickness, product surface quality can not be effectively controlled in lower meeting, or occur running material problem, the higher press load that can increase causes the energy and equipment waste;
Under V, shaping press pressure 200T, the dwell time is the optimum that 75-95S can guarantee product design and productive temp, lower can not complete reaction solidifying by product, then man-hour is wasted in high meeting.
embodiment 3a kind of Fabricating machinery of cover plate of spare tire of automobile
The Fabricating machinery of the present embodiment is for the product of processing and implementation example 1, and its working process can be realized the technique of embodiment 21-27.
The present embodiment comprises that the mechanical arm of main program under controlling 4, two fibre cutting machines 51 and 52(join two while being sprinkled into one or both fibers; If need to be equipped with the fibre cutting machine of respective numbers while being sprinkled into more kinds of fiber simultaneously), high-pressure foam hard polyaminoester flush coater, mould, shaping press and die heater, wherein:
Two fibre cutting machines 51 and 52 have as specific installation the bolt that connects external device (ED), the angle of can free adjustment installing.
Spray head 6 both sides that lay respectively at high-pressure foam hard polyaminoester flush coater are 180 ° of symmetrical installations, and between three, warp can be connected firmly as spraying system mutually by the hitch 7 of main program controlled motion track.V-shaped distribution between the outlet of the spray head 6 of baroluminescence hard polyaminoester flush coater and two fibre cutting machines 51 and 52, as shown in Figure 2, and the spray head 6 of baroluminescence hard polyaminoester flush coater and the angle between outlet, just make the hard polyaminoester of ejection all infiltrate or partial wetting before the counterdie that arrives shaping press with the fiber spreading out, after arriving counterdie, all infiltrate (it is that the process that rises in course of reaction infiltrates fibers encapsulation by hard polyaminoester that final realization all infiltrates), as shown in Figure 3.
High-pressure foam hard polyaminoester flush coater can regulate material temperature to the scope of demand, can tell material according to the materials of setting, and be sprayed into vaporific.
The start and stop of fibre cutting machine 51 and 52, hard polyaminoester flush coater are controlled by main program respectively.Fibre cutting machine 51 and 52 is respectively by two rubber rollings 81 and 82, and running roller 83 formations of a band blade, as shown in Figure 4.On the running roller 83 of band blade, drive motor is installed, can drives the running roller 83 of band blade to rotate, and the running roller 83 of band blade turns to and the turning to of two rubber rollings 81 and 82 between for oppositely.With reference to figure 3, when fibrous bundle A imports in fine pipe B under pressurized air promotes, by leading fine pipe B under pressurized air effect until apparatus for cutting fiber 51 or 52 only, fibrous bundle A is placed in compression between rubber rolling 1 and rubber rolling 2, guarantees that fiber does not come off after cutting; Fibrous bundle A is when the running roller 83 by band blade and rubber rolling 82, and the pressure by between two running rollers, is cut off fibrous bundle A by cutter.
Mould independently arranges, and can be placed in shaping press.
Shaping press independently arranges, and for installation mold, press table meets the mould of product to be installed, pressure >=200T.Driven mold die sinking under main program is controlled, matched moulds, and be shaped to product according to the timely chien shih material of the pressure pressurize of setting.
Die heater independently arranges, under main program is controlled by be heated oil pipe be connected to mould through heating medium by mold heated to design temperature, the pipeline connection of die heater will be mated with the joint of mould.
Mechanical arm 4 is for capturing hitch 7 under controlling at main program and driving it according to setting orbiting motion.
The present embodiment
working processas follows:
I. fibrous bundle A imports fibre cutting machine 51 or 52 places;
Ii. mould is arranged on shaping press;
Iii. mould is connected to die heater by heating oil pipe, oil temperature machine design temperature, heating medium is by mold heated;
Iv. shaping press is opened, driven mold die sinking;
V. mechanical arm carries high-pressure foam hard polyaminoester flush coater and fibre cutting machine 51 and 52 installs to the position that reaches pre-spraying;
Vi. at lower mould coated with hard polyurethane material, form the first hard polyaminoester top layer 1;
Vii. after lower mould spraying, according to program setting, fibre cutting machine 51 and 52 is opened, and opens high-pressure foam hard polyaminoester flush coater simultaneously, according to the track setting, again sprays.Hard polyurethane ester material is mixed to infiltration with short-fibre silk, and be sprayed at the first hard polyaminoester top layer 1 of having sprayed in advance above.Quantity for spray spraying is as required complete, forms the mixolimnion 2 of hard polyaminoester and fiber;
Viii. according to program setting, close fibre cutting machine 51 and 52, on the mixolimnion 2 of hard polyaminoester and fiber, continue coated with hard polyurethane material, according to the track spraying of setting evenly, form the second hard polyaminoester top layer 3;
Ix. after spraying, mechanical arm carries high-pressure foam hard polyaminoester flush coater and fibre cutting machine 51 and 52 is got back to initial point;
X. matched moulds pressurize, according to pressure and the dwell time set, die sinking pickup after pressurize completes.
Claims (10)
1. a cover plate of spare tire of automobile,
it is characterized in that:along its thickness direction be three layers of one lamination layer structure, comprise the hard polyaminoester of high-pressure foam spray mo(u)lding and the mixture layer of fiber as core, and high-pressure foam spray mo(u)lding is in first, second hard polyaminoester top layer of core both sides.
2. cover plate of spare tire of automobile according to claim 1,
it is characterized in that:described fiber is a kind of in glass fibre, flaxen fiber, regenerated fiber, syntheticfibres, or is two kinds, two or more mixing.
3. a kind of processing technology of the cover plate of spare tire of automobile described in claim 1 or 2,
it is characterized in that:it carries out according to following steps order:
1. hard polyaminoester carries out the vaporific lower mould that sprays to high pressure foaming machine, forms the first hard polyaminoester top layer;
2. hard polyaminoester carries out the vaporific first hard polyaminoester top layer that sprays to high pressure foaming machine, is sprinkled into Chopped fiber silk in the time of spraying, makes hard polyaminoester mix, infiltrate with fiber, forms the mixture layer of hard polyaminoester and fiber;
3. hard polyaminoester carries out the vaporific mixture layer that sprays to hard polyaminoester and fiber with high pressure foaming machine, forms the second hard polyaminoester top layer;
4. spray completely, compression molding,, by the pressurize of shaping press driven mold matched moulds, takes out workpiece, i.e. cover plate of spare tire of automobile after pressurize.
4. the processing technology of cover plate of spare tire of automobile according to claim 3,
it is characterized in that:described step 1., 2. or 3., hard polyaminoester material temperature is 22-28 ℃.
5. the processing technology of cover plate of spare tire of automobile according to claim 3,
it is characterized in that:described step 1. or 3., the grammes per square metre on first, second hard polyaminoester top layer is 200-500g/m
2 .
6. the processing technology of cover plate of spare tire of automobile according to claim 3,
it is characterized in that:described step 4. in, during compression molding, mold temperature is 90-110 ℃.
7. the processing technology of cover plate of spare tire of automobile according to claim 3,
it is characterized in that:described step 4. in, shaping press pressure 200T, dwell pressure is 15-22MPa, the dwell time is 75-95S.
8. the processing technology of cover plate of spare tire of automobile according to claim 3,
it is characterized in that:described step 2. in, the part by weight of hard polyaminoester and fiber is 1:1.1-1.4.
9. a kind of Fabricating machinery of cover plate of spare tire of automobile in claim 1 or 2,
it is characterized in that:it comprises two fibre cutting machines, high-pressure foam hard polyaminoester flush coater, mould, shaping press and die heater under main program control, wherein:
Two fibre cutting machines lay respectively at the both sides of high-pressure foam hard polyaminoester flush coater, between three, through being connected firmly mutually by the hitch of main program controlled motion track as making angle between V-shaped distribution between the spray head of high-pressure foam hard polyaminoester flush coater and the outlet of two fibre cutting machines and spray head and the outlet hard polyaminoester that just makes ejection and the fiber spreading out whole spraying system of infiltrations or partial wetting when arriving the counterdie of shaping press, the start and stop of fibre cutting machine, high-pressure foam hard polyaminoester flush coater are controlled by main program respectively;
Mould independently arranges, and can be placed in shaping press;
Shaping press independently arranges, and for driven mold die sinking under controlling at main program, matched moulds, and is shaped to product according to the timely chien shih material of the pressure pressurize of setting;
Die heater independently arranges, under main program is controlled by be heated oil pipe be connected to mould through heating medium by mold heated to design temperature.
10. the Fabricating machinery of cover plate of spare tire of automobile according to claim 9,
it is characterized in that:it also comprises the mechanical arm under main program control, and described mechanical arm is for capturing hitch under controlling at main program and driving it according to setting orbiting motion.
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| CN201410226912.0A CN104002879B (en) | 2014-05-27 | 2014-05-27 | Cover plate of spare tire of automobile and processing technique, process equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410226912.0A CN104002879B (en) | 2014-05-27 | 2014-05-27 | Cover plate of spare tire of automobile and processing technique, process equipment |
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| CN104002879A true CN104002879A (en) | 2014-08-27 |
| CN104002879B CN104002879B (en) | 2016-08-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385766A (en) * | 2014-11-27 | 2015-03-04 | 长城汽车股份有限公司 | Automobile spare tire cover plate binding device |
| CN104842890A (en) * | 2015-05-14 | 2015-08-19 | 北京汽车股份有限公司 | Spare tire cover plate for vehicle and manufacturing method thereof |
| CN106476356A (en) * | 2016-12-13 | 2017-03-08 | 长春博超汽车零部件股份有限公司 | A kind of flaxen fiber strengthens Rigid foam polyurethane and preparation method thereof |
| CN107719489A (en) * | 2017-10-23 | 2018-02-23 | 无锡吉兴汽车部件有限公司 | A kind of cover plate of spare tire of automobile with flanging and preparation method thereof |
| CN109436037A (en) * | 2018-12-07 | 2019-03-08 | 广西曼彻彼斯自动化设备有限公司 | The start-up and shut-down control device and method of logistics trolley |
| CN112549704A (en) * | 2020-12-02 | 2021-03-26 | 宁波耀众模塑科技有限公司 | High-strength polyurethane plate and processing technology and application thereof |
| CN113478929A (en) * | 2021-07-20 | 2021-10-08 | 新程汽车工业有限公司 | Novel high security suitcase baffle |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104385766A (en) * | 2014-11-27 | 2015-03-04 | 长城汽车股份有限公司 | Automobile spare tire cover plate binding device |
| CN104385766B (en) * | 2014-11-27 | 2016-10-05 | 长城汽车股份有限公司 | A kind of cover plate of spare tire of automobile Wrapping apparatus |
| CN104842890A (en) * | 2015-05-14 | 2015-08-19 | 北京汽车股份有限公司 | Spare tire cover plate for vehicle and manufacturing method thereof |
| CN106476356A (en) * | 2016-12-13 | 2017-03-08 | 长春博超汽车零部件股份有限公司 | A kind of flaxen fiber strengthens Rigid foam polyurethane and preparation method thereof |
| CN107719489A (en) * | 2017-10-23 | 2018-02-23 | 无锡吉兴汽车部件有限公司 | A kind of cover plate of spare tire of automobile with flanging and preparation method thereof |
| CN109436037A (en) * | 2018-12-07 | 2019-03-08 | 广西曼彻彼斯自动化设备有限公司 | The start-up and shut-down control device and method of logistics trolley |
| CN109436037B (en) * | 2018-12-07 | 2024-03-26 | 曼彻彼斯高新技术有限公司 | Start-stop control device and method for logistics trolley |
| CN112549704A (en) * | 2020-12-02 | 2021-03-26 | 宁波耀众模塑科技有限公司 | High-strength polyurethane plate and processing technology and application thereof |
| CN113478929A (en) * | 2021-07-20 | 2021-10-08 | 新程汽车工业有限公司 | Novel high security suitcase baffle |
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