CN115923681A - Automobile D column outer decoration plate - Google Patents
Automobile D column outer decoration plate Download PDFInfo
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- CN115923681A CN115923681A CN202211303704.7A CN202211303704A CN115923681A CN 115923681 A CN115923681 A CN 115923681A CN 202211303704 A CN202211303704 A CN 202211303704A CN 115923681 A CN115923681 A CN 115923681A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses an automobile D-pillar outer decorative plate which comprises an inner side substrate and an outer decorative plate, wherein the outer decorative plate comprises a base material connected with the inner side substrate and a paint layer arranged on the outer side surface of the base material, and the paint layer is prepared by the following method: placing a base material on a conveyor belt which moves forwards at a constant speed, enabling the outer side surface of the base material to be placed upwards, arranging the conveyor belt on a fixed production line, wherein the production line comprises a position A and a position B, arranging a paint outlet above the conveyor belt at the position A of the production line, and arranging a drying box body at the position B of the production line; when the base material moves through the position A by the conveyor belt, the paint flowing out of the paint outlet is sprayed onto the outer side surface of the base material from front to back; when the base material is moved to the position B by the conveyor belt, the base material with paint on the outer side surface is dried by the drying box body, and thus the D-column outer decorative plate is manufactured. The invention can effectively reduce paint waste, reduce manufacturing cost and improve the quality of surface paint.
Description
Technical Field
The invention relates to the technical field of automobile part manufacturing, in particular to an automobile D column outer decorative plate.
Background
The D-pillar usually includes an exterior panel with a high gloss paint surface and an inner substrate, and the exterior panel is connected with the inner substrate to form a complete D-pillar.
In the prior art, the high gloss paint on the surface layer of the exterior plate is usually formed by a paint spraying process, and has the advantage of high automation degree.
However, the existing D-pillar of the automobile still has the following technical defects: firstly, because the high-gloss paint on the surface layer of the external decorative plate is formed by adopting a paint spraying process, much of the mist paint sprayed from the spray head can be sprayed on a bracket and a conveyor belt for placing a workpiece, so that the waste of paint spraying is caused; secondly, the mist paint sprayed from the spray head cannot be recycled, so that the paint utilization rate is low, the production cost is high, and especially the waste of the high-value paint is more serious. Secondly, in order to facilitate the spraying, the paint is usually blended to be thinner so as to avoid the thick paint from blocking the spraying hole of the nozzle. However, this may cause the paint on the surface of the workpiece to flow, which in turn causes the paint layer to have a non-uniform thickness and affect the appearance.
Disclosure of Invention
The invention aims to provide an automobile D column outer decorative plate which can effectively reduce paint waste, reduce manufacturing cost and improve the quality of surface paint.
In order to achieve the purpose, the invention adopts the following technical scheme:
the automobile D-pillar outer decorative plate comprises an inner side base plate and an outer decorative plate, wherein the outer decorative plate comprises a base material connected with the inner side base plate and a paint layer arranged on the surface of the outer side of the base material, and the paint layer is manufactured by the following method:
a. placing a base material on a conveyor belt which moves forwards at a constant speed, and placing the outer side surface of the base material upwards, wherein the conveyor belt is arranged on a fixed production line, the production line comprises a position A and a position B, a paint outlet positioned above the conveyor belt is arranged at the position A of the production line, the paint outlet is flat, and a drying box body is arranged at the position B of the production line;
b. when the base material moves through the position A by the conveyor belt, the paint flowing out of the paint outlet is sprayed onto the outer side surface of the base material from front to back;
c. when the base material is moved to the position B by the conveyor belt, the base material with paint on the outer side surface is dried by the drying box body, and thus the D-column outer decorative plate is manufactured.
Similarly to the prior art, the D-pillar exterior panel of the present invention includes an interior substrate and an exterior panel having a paint layer provided on a base material. When processing the paint layer on the surface of the substrate, the substrate is firstly placed on a conveyor belt approximately horizontally so that the outer side surface of the substrate faces upwards, and a flat paint outlet positioned above the conveyor belt is arranged at the position A of the production line. Thus, when the base material moves and passes through the position A, the curtain-shaped paint which is downwards sprayed from the paint outlet can be uniformly sprayed on the surface of the base material, and the D-column external decorative plate can be prepared after the curtain-shaped paint is baked by the drying box body at the position B. It is understood that since the paint of the present invention is not sprayed to the surface of the substrate through the spray hole of the spray gun, the paint layer does not interfere with the processing of the paint layer on the surface of the substrate even if the paint has a high concentration and viscosity. Particularly, the base material is approximately horizontally arranged, so that the phenomenon of casting of the paint sprayed on the surface of the base material can be effectively avoided.
Preferably, the conveyor belt is provided with a positioning mechanism for positioning the base material and a detection mechanism for detecting the levelness of the base material, the positioning mechanism comprises a front positioning part, a middle positioning part and a rear positioning part, the front positioning part, the middle positioning part and the rear positioning part respectively comprise a base vertically arranged on the conveyor belt in a lifting manner and a positioning head connected to the upper end of the base in a ball joint manner, the three positioning heads are arranged in a triangular shape, and in the step a, the inner side surfaces of the front, middle and rear parts of the base material are respectively positioned on the positioning heads of the front positioning part, the middle positioning part and the rear positioning part; in step b, when the base material moves to the position A, the bases of the front positioning, the middle positioning and the rear positioning are lifted according to the program, and the outer side surface of the base material right below the paint outlet is ensured to be vertical to the vertical direction.
It will be appreciated that the front, center, and rear positioning susceptor lift sequence can be configured according to the shape of the outer surface of the substrate. When the base material moves to the position A, the bases of the front positioning, the middle positioning and the rear positioning lift according to the program, so that the outer side surface of the base material positioned right below the paint outlet is vertical to the vertical direction of the paint sprayed downwards, and the thickness consistency of the paint sprayed to the surface of the base material is facilitated.
Preferably, in step b, when the base material moves to the position a, the base material enters an adjusting program, and at the time, the bases positioned in the front, middle and rear directions are lifted and lowered according to the program, so that the outer side surface of the base material right below the paint outlet is ensured to be vertical to the vertical direction.
The base material enters the adjusting procedure when moving to the position A, so that the outer side surface of the base material right below the paint outlet is ensured to be vertical to the vertical direction. Therefore, the uniformity of the paint layer quality can be ensured, and the lifting of the base can be reduced to the maximum extent.
Preferably, the device also comprises a front position signal transmitting device and a rear position signal transmitting device which are arranged beside the front positioning device and the rear positioning device, and a receiving device which is arranged on the production line and can receive position signals transmitted by the position signal transmitting devices, when the base material moves to the position A, the position signal transmitting device positioned beside the front positioning device outputs a position signal, the receiving device on the conveyor belt receives the corresponding position signal, and the base material starts the adjusting program at the moment; until the position signal emitting device positioned at the rear positioning side outputs a position signal, the receiving device on the conveyor belt receives the corresponding position signal, and the base material finishes the adjusting program at the moment.
The starting position and the ending position of the base material entering the adjusting program can be conveniently determined by the front position signal transmitting device and the rear position signal transmitting device and the corresponding position signal receiving devices.
Preferably, the paint outlet is connected with a paint bucket through a conveying pipeline, the paint bucket is higher than the paint outlet, the conveying belt comprises an oblong conveying chain and a plurality of screen plates longitudinally arranged on the conveying chain, the adjacent screen plates are hinged, so that the conveying belt forms an upper layer belt and a lower layer belt, a collecting box located below the paint outlet is arranged between the upper layer belt and the lower layer belt, and the collecting box is connected with the paint bucket through the conveying pipeline with a pumping device.
Because the conveying belt comprises the conveying chain and the screen plates, the paint sprinkled beside and on the base material can drop downwards onto the screen plates and then enter the collecting box, and the paint is conveyed back into the paint bucket through the pumping device for reuse, so that the waste of the paint can be minimized. Of course, the pumping means may be intermittently actuated by the controller.
Preferably, a paint discharging container located above the conveyor belt is arranged at the position A of the production line, the paint discharging container comprises a side wall, a fixed plate and a movable plate, the fixed plate and the movable plate are arranged at the bottom of the side wall, the fixed plate is fixedly connected with the side wall, the movable plate is movably connected with the side wall, the movable plate and the fixed plate are arranged oppositely, and a gap between the movable plate and the fixed plate forms the paint outlet.
When the controller adjusts the distance between the moving plate and the fixed plate, the width of the paint outlet can be adjusted to meet different types of paints and base materials.
Preferably, a plurality of triangular adjusting saw teeth are arranged on one side edge of the moving plate close to the fixed plate, the distance between every two adjacent adjusting saw teeth is equal to 1-1.2 times of the length of the bottom edge of each adjusting saw tooth, when the moving plate is close to the fixed plate, the adjusting saw teeth are lapped on the edge of the fixed plate with the straight edge, and therefore a row of paint outlets formed by a plurality of triangular gaps are formed between the edge of the fixed plate with the straight edge and the adjusting saw teeth.
Because the edge of one side of the moving plate close to the fixed plate is provided with the triangular adjusting saw teeth which can be lapped on the edge of the fixed plate, the paint outlet can form continuous triangular saw teeth. That is to say, when the moving plate moves a small distance, the paint outlet can be greatly changed, and then an amplification effect is achieved between the moving distance of the moving plate and the size of the paint outlet, so that the adjustment of the paint outlet is facilitated.
Therefore, the invention has the following beneficial effects: can effectively reduce paint waste, reduce manufacturing cost and improve the quality of surface paint.
Drawings
FIG. 1 is a schematic diagram of a substrate placement configuration on a conveyor belt of a manufacturing line.
Fig. 2 is a schematic view of a paint outlet.
In the figure: 1. the automatic paint spraying device comprises a base material 2, a production line 21, a conveyor belt 211, a transmission chain 212, a screen plate 3, a paint outlet container 31, a paint outlet 32, a fixed plate 33, a moving plate 331, an adjusting saw tooth 5, paint 61, a front positioning 611, a base 612, a positioning head 62, a middle positioning 63, a rear positioning 7, a paint bucket 8 and a collecting box.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
The automobile D-column outer decorative plate comprises an inner side substrate and an outer decorative plate, wherein the outer decorative plate comprises a base material connected with the inner side substrate and a paint layer arranged on the outer side surface of the base material, the base material is made of PC/ABS, and the outer decorative plate is made of PC. Specifically, the paint layer is prepared by the following method:
a. as shown in fig. 1 and 2, a substrate 1 is placed on a conveyor belt 21 which moves forward at a constant speed, the outer side surface of the substrate is placed upwards, the conveyor belt is arranged on a fixed production line 2, the production line comprises a position A and a position B, a paint outlet 31 which is positioned above the conveyor belt is arranged at the position A of the production line, the paint outlet is flat, and a drying box body is arranged at the position B of the production line;
b. when the base material moves through the position A by the conveyor belt, the paint 5 flowing out of the paint outlet is sprayed to the outer side surface of the base material from front to back;
c. when the conveyor belt moves the base material to the position B, the base material having paint on the outer surface is dried by a drying cabinet (not shown), thereby manufacturing a D-pillar exterior panel.
Of course, the operation steps, procedures and the like of the production line can be controlled by the controller, and since such control techniques and the drying box body in step c are the prior art, they are not described in detail in this embodiment.
Since the base material is placed on the conveyor belt with its outer surface facing upward, the outer surface of the base material can be made substantially horizontal. When the base material moves and passes through the position A, the curtain-shaped paint which is downwards sprayed from the paint outlet can be uniformly sprayed on the surface of the base material, and then the D-column external decorative plate can be obtained after the curtain-shaped paint is baked by the drying box body at the position B. That is to say, the paint is sprinkled on the surface of the base material like curtain cloth, and the phenomenon of drooling of the paint sprinkled on the surface of the base material can be effectively avoided. In addition, the consistency and consistency of the paint do not interfere with the processing of the paint layer on the substrate surface.
Preferably, the conveyor belt is provided with a positioning mechanism for positioning the substrate and a detection mechanism (not shown in the figure) for detecting the levelness of the substrate. The positioning mechanism comprises a front positioning 61, a middle positioning 62 and a rear positioning 63, wherein the front positioning, the middle positioning and the rear positioning respectively comprise a base 611 vertically arranged on the conveyor belt in a lifting manner and a positioning head 612 connected with the upper end of the base in a ball manner, namely the positioning head can rotate 360 degrees relative to the upper end of the base. Furthermore, the three positioning heads are arranged in a triangular shape in the horizontal plane. Thus, in the step a, the inner side surfaces of the front, middle and rear parts of the base material are respectively positioned on the positioning heads of the front positioning, the middle positioning and the rear positioning; in step b, when the base material moves to the position A, the controller enables the bases with the front positioning, the middle positioning and the rear positioning to ascend and descend according to a preset program, and further ensures that the outer side surface of the base material right below the paint outlet is vertical to the vertical direction. The detection mechanism for detecting the levelness of the base material can monitor the levelness of the outer side surface of the base material right below the paint outlet in real time so as to ensure that the outer side surface of the base material right below the paint outlet is vertical to the vertical direction. If the detected result is that the levelness exceeds the set deviation value, the controller adjusts the levelness of the outer side surface of the base material right below the paint outlet by adjusting the lifting of the front positioning base, the middle positioning base and the rear positioning base.
It will be appreciated that the thickness of paint showered onto the outer surface of the substrate is related to the angle of the outer surface of the substrate relative to the curtain of paint as the width of the outlet and the speed of movement of the conveyor belt are determined. The angle of the outer side surface of the base material relative to the curtain-shaped paint is always kept at about 90 degrees through the positioning mechanism and the detection mechanism, so that the uniformity of the thickness of the paint layer can be effectively ensured.
It is understood that the references to a position and B position actually refer to an area or range that includes a start position and an end position.
Furthermore, the invention also comprises a front position signal transmitting device and a rear position signal transmitting device which are arranged beside the front positioning device and the rear positioning device, and a receiving device which is arranged on the production line and can receive the position signals transmitted by the position signal transmitting devices. When the base material moves to the position A (initial position), firstly, a position signal is output by a position signal transmitting device positioned beside the front positioning side, a receiving device on the conveyor belt receives the corresponding position signal, and the base material starts an adjusting program at the moment; until the position signal emitting device located beside the rear positioning device outputs a position signal, the receiving device on the conveyor belt receives the corresponding position signal, and the substrate finishes the adjusting procedure (the substrate moves to the end position of the position A at this time).
Furthermore, the paint outlet is connected with a paint bucket 7 through a conveying pipeline, the paint bucket is higher than the paint outlet, the conveying belt comprises an oblong conveying chain 211, a plurality of screen plates 212 longitudinally arranged on the conveying chain, and the adjacent screen plates are hinged with each other, so that the conveying belt forms an upper layer belt and a lower layer belt, a collecting box 8 located below the paint outlet is arranged between the upper layer belt and the lower layer belt, and the collecting box is connected with the paint bucket through the conveying pipeline with a pumping device.
When the paint is sprinkled beside and on the surface of the base material, the redundant paint can drop downwards onto the screen plate and then enters the collecting box, when the paint in the collecting box reaches a certain height, the pumping device conveys the paint back into the paint bucket, and the paint in the paint bucket higher than the paint outlet can automatically flow back to the paint outlet, so that the waste of the paint can be reduced to the maximum extent.
As another preferred scheme, a paint discharging container 3 positioned above the conveyor belt is arranged at the position a of the production line, and comprises a side wall, a fixed plate 32 and a moving plate 33, wherein the fixed plate is arranged at the bottom of the side wall and fixedly connected with the side wall, the moving plate is horizontally and movably connected with the side wall, and the moving plate and the fixed plate are oppositely arranged. Thus, the gap between the moving plate and the fixed plate forms the paint outlet.
When the controller adjusts the distance between the movable plate and the fixed plate, the width of the paint outlet can be adjusted to meet the processing requirements of different types of paints and base materials.
Furthermore, a plurality of triangular adjusting saw teeth 331 are arranged on one side edge of the moving plate close to the fixed plate, and the distance between every two adjacent adjusting saw teeth is equal to 1-1.2 times of the length of the bottom edge of each adjusting saw tooth. When the moving plate is close to the fixed plate, the adjusting saw teeth are lapped at the lower side of the edge of the fixed plate with the straight edge, so that a row of paint outlets formed by a plurality of triangular gaps are formed between the edge of the fixed plate with the straight edge and the adjusting saw teeth.
Therefore, when the moving plate moves a small distance, the paint outlet is greatly changed, and an amplification effect is achieved between the moving distance of the moving plate and the size of the paint outlet, so that the paint outlet is conveniently adjusted.
Claims (7)
1. The automobile D-pillar outer decorative plate comprises an inner side substrate and an outer decorative plate, wherein the outer decorative plate comprises a base material connected with the inner side substrate and a paint layer arranged on the outer side surface of the base material, and the automobile D-pillar outer decorative plate is characterized in that the paint layer is manufactured by adopting the following method:
a. placing a base material on a conveyor belt which moves forwards at a constant speed, and placing the outer side surface of the base material upwards, wherein the conveyor belt is arranged on a fixed production line, the production line comprises a position A and a position B, a paint outlet positioned above the conveyor belt is arranged at the position A of the production line, the paint outlet is flat, and a drying box body is arranged at the position B of the production line;
b. when the base material moves through the position A by the conveyor belt, the paint flowing out of the paint outlet is sprayed onto the outer side surface of the base material from front to back;
c. when the base material is moved to the position B by the conveyor belt, the base material with paint on the outer side surface is dried by the drying box body, and thus the D-column outer decorative plate is manufactured.
2. The automobile D-pillar outer decorative plate according to claim 1, wherein a positioning mechanism for positioning a base material and a detection mechanism for detecting levelness of the base material are arranged on the conveyor belt, the positioning mechanism comprises a front positioning part, a middle positioning part and a rear positioning part, the front positioning part, the middle positioning part and the rear positioning part respectively comprise a base vertically arranged on the conveyor belt in a lifting manner and a positioning head connected to the upper end of the base in a ball joint manner, the three positioning heads are arranged in a triangular shape, and in the step a, the inner side surfaces of the front part, the middle part and the rear part of the base material are respectively positioned on the positioning heads of the front positioning part, the middle positioning part and the rear positioning part; in step b, when the base material moves to the position A, the bases of the front positioning, the middle positioning and the rear positioning are lifted according to the program, and the outer side surface of the base material right below the paint outlet is ensured to be vertical to the vertical direction.
3. The D-pillar exterior trim panel for an automobile according to claim 2, wherein in the step b, when the base material is moved to the a position, the base material enters an adjustment procedure, and at this time, the front positioning, the middle positioning and the rear positioning bases are lifted and lowered according to the procedure, thereby ensuring that the outer side surface of the base material located right below the paint outlet is perpendicular to the vertical direction.
4. The D-pillar exterior trim panel for an automobile according to claim 3, further comprising a front position signal emitting device and a rear position signal emitting device disposed beside the front position and the rear position, and a receiving device disposed on the production line and capable of receiving the position signal emitted from the position signal emitting devices, wherein when the base material moves to the position a, the position signal emitting device disposed beside the front position first outputs a position signal, the receiving device on the conveyor belt receives the corresponding position signal, and the base material starts the adjustment process; until the position signal emitting device positioned at the rear positioning side outputs a position signal, the receiving device on the conveyor belt receives the corresponding position signal, and the base material finishes the adjusting program at the moment.
5. The D-pillar exterior trim panel for an automobile according to claim 1, wherein the paint outlet is connected to a paint tank through a transfer line, the paint tank is disposed higher than the paint outlet, the conveyor belt comprises an oblong conveyor chain, a plurality of mesh plates longitudinally disposed on the conveyor chain, adjacent mesh plates are hinged to each other so that the conveyor belt forms an upper belt and a lower belt, and a collecting box disposed below the paint outlet is disposed between the upper belt and the lower belt and connected to the paint tank through a transfer line having a pumping means.
6. The automobile D-pillar outer decorative plate according to claim 1, wherein a paint discharging container is arranged above the conveyor belt at a position A of the production line, the paint discharging container comprises a side wall, a fixed plate and a movable plate, the fixed plate is arranged at the bottom of the side wall, the fixed plate is fixedly connected with the side wall, the movable plate is movably connected with the side wall, the movable plate and the fixed plate are oppositely arranged, and a gap between the movable plate and the fixed plate forms the paint outlet.
7. The D-pillar outer decorative panel for an automobile according to claim 6, wherein a plurality of triangular adjusting serrations are formed on an edge of the moving plate adjacent to the fixed plate at a distance equal to 1 to 1.2 times a length of a bottom side of the adjusting serrations, and the adjusting serrations overlap an edge of the straight-sided fixed plate when the moving plate is adjacent to the fixed plate, thereby forming a row of paint outlets formed by a plurality of triangular spaces between the edge of the straight-sided fixed plate and the adjusting serrations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211303704.7A CN115923681A (en) | 2022-10-24 | 2022-10-24 | Automobile D column outer decoration plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211303704.7A CN115923681A (en) | 2022-10-24 | 2022-10-24 | Automobile D column outer decoration plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115923681A true CN115923681A (en) | 2023-04-07 |
Family
ID=86698245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211303704.7A Pending CN115923681A (en) | 2022-10-24 | 2022-10-24 | Automobile D column outer decoration plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115923681A (en) |
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2022
- 2022-10-24 CN CN202211303704.7A patent/CN115923681A/en active Pending
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