CN211492876U - Gold-plastic composite board and production equipment thereof - Google Patents

Gold-plastic composite board and production equipment thereof Download PDF

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Publication number
CN211492876U
CN211492876U CN201922024538.7U CN201922024538U CN211492876U CN 211492876 U CN211492876 U CN 211492876U CN 201922024538 U CN201922024538 U CN 201922024538U CN 211492876 U CN211492876 U CN 211492876U
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machine
board
heating
glue coating
composite board
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CN201922024538.7U
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Chinese (zh)
Inventor
徐世兵
吴昊
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Anhui Huiji Technology Co ltd
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Anhui Huiji Technology Co ltd
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Abstract

The embodiment of the utility model discloses gold plastic composite board and production facility thereof relates to metal and plastics compound technical field, wherein, production facility includes glue coating machine and the compounding machine that the process is connected, the glue coating machine is used for the even coating PUR hot melt adhesive in the one side that is close to PVC foaming board at sheetmetal, the glue coating machine is equipped with two, two glue coating machines are located the top and the below of compounding machine respectively, the compounding machine is used for making PVC foaming board and the sheetmetal that gets into in the compounding machine in step under the effect of PUR hot melt adhesive and compounding machine extrusion force composite forming. The utility model provides a gold plastic composite board and production facility thereof only need keep warm or heat up to 110 + 140 ℃ with the PUR hot melt adhesive in the glue coating machine, can be with PVC foaming board and sheet metal composite forming through the compounding machine extrusion, need not through 220 ℃ high temperature complex, and the energy consumption reduces, by mechanical production simultaneously, and degree of mechanization is high.

Description

Gold-plastic composite board and production equipment thereof
Technical Field
The embodiment of the utility model provides a relate to metal and plastics complex technical field, concretely relates to gold plastic composite board and production facility thereof.
Background
The aluminum-plastic composite board is a 3-layer composite board which takes plastic as a core layer and aluminum materials on two surfaces, and a decorative and protective coating or film (generally called a coating if no special reference is made) is coated on the surface of a product to serve as the decorative surface of the product. The equipment for manufacturing the composite board in the market at present mainly comprises two types, one type is a single-side cladding machine, the equipment cannot produce the PVC board, only can carry out single-side cladding, and the mechanization degree is low; the other is an aluminum-plastic composite board production line, PE plastic is used, a solid-state high-polymer hot-melt film is adopted to be compounded at a high temperature of 220 ℃, and the equipment has high energy consumption and complex operation.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a gold-plastic composite board and production facility to solve the current problem that aluminum-plastic composite board production process mechanization degree is low, the power consumption is big.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
according to the utility model discloses the first aspect of embodiment, a production facility of composite sheet is moulded to gold, a serial communication port, production facility includes glue coating machine and compounding machine that the process is connected, the glue coating machine is used for the even coating PUR hot melt adhesive of the one side that is close to PVC foaming board at sheetmetal, the glue coating machine is equipped with two, two the glue coating machine is located respectively the top and the below of compounding machine, the compounding machine is used for making PVC foaming board and the sheetmetal that gets into in the compounding machine in step compound under the effect of PUR hot melt adhesive and compounding machine extrusion force compound shaping.
Further, the glue coating machine includes coating machine frame, heating steel roller, polyurethane elasticity rubber roll and heating scraper, the both ends pin joint of heating steel roller in the coating machine frame, the both ends pin joint of polyurethane elasticity rubber roll in the coating machine frame, the heating steel roller with polyurethane elasticity rubber roll parallel arrangement, just the heating steel roller with be equipped with the clearance that is used for wearing the area between the polyurethane elasticity rubber roll, be equipped with the reticulation that is formed by evenly distributed's micropore on the periphery of heating steel roller, the heating scraper is fixed in the coating machine frame, the cutting part of heating scraper with the periphery contact of heating steel roller, just the cutting part of heating scraper with heating steel roller parallel arrangement, the heating scraper with the periphery of heating steel roller forms the contained angle space of V font.
Further, the production equipment further comprises a winding and unwinding machine, the winding and unwinding machine is connected with the glue coating machine in a working procedure, and the winding and unwinding machine is used for conveying metal sheets to the glue coating machine.
Further, receive and release the machine of unreeling and draw together symmetry frame, connecting axle and harmomegathus dish, the symmetry frame includes base and support arm, the support arm is equipped with two, two the support arm interval set up in on the base, every rotatable setting one on the support arm the connecting axle, two the axis extension line of connecting axle coincides mutually, harmomegathus dish is fixed in the tip of connecting axle, just harmomegathus dish is located two between the support arm.
According to the utility model discloses in the second aspect of the embodiment, a gold-plastic composite board, it includes PVC foaming board and sheet metal, sheet metal set up in the both sides face of PVC foaming board sheet metal pass through the PUR hot melt adhesive with PVC foaming board is fixed sheet metal's keeping away from one side of PVC foaming board is equipped with the paint layer that is suitable for printing the outside of paint layer is equipped with the protection film.
Further, the metal sheet is an aluminum strip, an iron strip or a copper strip.
Furthermore, the thickness of the PVC foaming plate is 3-20mm, and the thickness of the metal sheet is 0.05-1 mm.
The embodiment of the utility model provides a have following advantage:
the embodiment of the utility model provides a gold-plastic composite board adopts the PVC foaming board to make the core, through PUR hot melt adhesive with PVC foaming board and sheetmetal composite forming, only need evenly coat on the side of sheetmetal that is close to the PVC foaming board after melting PUR hot melt adhesive through the glue coating machine, then can be with sheetmetal and PVC foaming board composite forming in the composite machine, the melting point of PUR hot melt adhesive belongs to low energy consumption composite production technology in 110-; the metal sheets are compounded on both sides of the PVC foaming plate, for example, the PVC foaming plate is horizontally placed, the PUR hot melt adhesive of the metal sheet on the lower side is coated on the upper surface of the metal sheet, the PUR hot melt adhesive of the metal sheet on the upper side is coated on the lower surface of the metal sheet, the metal sheets on the upper side and the lower side and the PVC foaming plate synchronously enter a compound machine, and then compound molding can be completed, and both glue coating and compound can be mechanically produced, so that the mechanical degree is improved.
The production equipment provided by the embodiment of the utility model can compound a layer of metal sheet on each side surface of the PVC foaming board, the gluing and compounding processes are mechanical production, and the degree of mechanization is high; the melting point of the PUR hot melt adhesive is 110-140 ℃, the molten PUR hot melt adhesive is coated on the metal sheet, the metal sheet is bonded with the PVC foaming plate by the PUR hot melt adhesive, the PVC foaming plate and the metal sheet are compounded and formed under the extrusion action of a compound machine, the high-temperature compounding at 220 ℃ is not needed, the PUR hot melt adhesive is heated to 110-140 ℃ in a glue coating machine or is kept at 110-140 ℃, and the 110-140 ℃ belongs to a low-energy-consumption compound production process in the field.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the range which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic structural diagram of a gold-plastic composite board provided in embodiment 1 or 2 of the present invention.
Fig. 2 is a production facility of a gold-plastic composite board provided in embodiment 1 or 2 of the present invention;
FIG. 3 is a schematic view of a glue coater on the upper side of the compound machine shown in FIG. 2;
FIG. 4 is a schematic view of a glue coater on the lower side of the compound machine shown in FIG. 2;
FIG. 5 is a schematic structural view of the winding and unwinding machine in FIG. 2;
fig. 6 is a flow chart of the method for producing the gold-plastic composite board in example 2.
In the figure: 11-PVC foaming plate, 12-metal sheet, 13-PUR hot melt adhesive, 14-paint layer, 15-protective film, 21-glue coating machine, 22-compound machine, 23-winding and unwinding machine, 24-traction machine, 211-coating machine frame, 212-heating steel roller, 213-polyurethane elastic rubber roller, 214-heating scraper, 215-included angle space, 221-compound roller, 231-base, 232-supporting arm, 233-connecting shaft, 234-expansion and shrinkage disk, 235-hydraulic oil cylinder, 236-gear box and 237-motor.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
Example 1
As shown in fig. 1 to 5, example 1 provides a gold-plastic composite panel including a PVC foam sheet 11 and a metal sheet 12. The thickness of the PVC foaming plate 11 is 3-20 mm. The thickness of the metal sheet 12 is 0.05-1mm, and the metal sheet 12 is an aluminum strip, an iron strip or a copper strip. The metal sheet 12 is disposed on both side surfaces of the PVC foam board 11, and the metal sheet 12 is fixed to the PVC foam board 11 by the PUR hot melt adhesive 13. A paint layer 14 suitable for printing is arranged on one side of the metal sheet 12 far away from the PVC foaming plate 11, and paint can be coated on the surface of the metal sheet 12 in a roller coating baking mode to form the paint layer 14 with the thickness of 12-16 microns, so that the paint layer 14 has very good adhesion with printer ink, and a printed pattern is clear and firm. The protective film 15 is arranged on the outer side of the paint layer 14, and the protective film 15 mainly protects the surface of a product before being used by a customer to prevent scratching.
The metal-plastic composite board of the embodiment adopts the PVC foam board 11 as a core material, the PVC foam board 11 and the metal sheet 12 are compounded and molded through the PUR hot melt adhesive 13, the PUR hot melt adhesive 13 is melted only through the glue coating machine 21 and then is uniformly coated on one side surface, close to the PVC foam board 11, of the metal sheet 12, and then the metal sheet 12 and the PVC foam board 11 can be compounded and molded in the compounding machine 22, the melting point of the PUR hot melt adhesive 13 is 140 ℃ in 110 plus materials, and the temperature of 110 plus materials is 140 ℃ in the field, which belongs to a low energy consumption compound production process, compared with the prior art, the high temperature compounding at 220 ℃ is not needed, so that the energy; the metal sheets 12 are compounded on both sides of the PVC foam board 11, taking the PVC foam board 11 horizontally placed as an example, the PUR hot melt adhesive 13 of the metal sheet 12 on the lower side is coated on the upper surface of the metal sheet 12, the PUR hot melt adhesive 13 of the metal sheet 12 on the upper side is coated on the lower surface of the metal sheet 12, the metal sheet 12 and the PVC foam board 11 on the upper side and the lower side synchronously enter the compound machine 22, and then the compound molding can be completed, and both the gluing and the compounding can be mechanically produced, so that the degree of mechanization is improved.
Example 2
As shown in fig. 1 to 5, embodiment 2 provides a manufacturing apparatus for a plastic-gold composite board, which comprises a glue coater 21 and a compound machine 22 connected in sequence. The glue coating machine 21 is used for uniformly coating the PUR hot melt adhesive 13 on one surface of the metal sheet 12 close to the PVC foaming plate 11, the glue coating machine 21 is provided with two glue coating machines 21, the two glue coating machines 21 are respectively positioned above and below the compound machine 22, and the compound machine 22 is used for enabling the PVC foaming plate 11 and the metal sheet 12 synchronously entering the compound machine 22 to be subjected to compound molding under the action of the extrusion force of the PUR hot melt adhesive 13 and the compound machine 22. The PVC foam board is fed to the laminator by the tractor 24, and the PVC foam board 11 moves and simultaneously moves the metal sheet 12 by the pressure of the laminating roller 221 of the laminator 22 in the laminator.
The production equipment provided by the embodiment can be used for compounding a layer of metal sheet 12 on each of the two side surfaces of the PVC foam board 11, the gluing and compounding processes are mechanical production, and the degree of mechanization is high; the melting point of the PUR hot melt adhesive 13 is 110-.
In the present embodiment, the glue coater 21 includes a coater frame 211, a heated steel roll 212, a polyurethane elastic rubber roll 213, and a heated blade 214.
The two ends of the heating steel roller 212 are pivoted to the coater frame 211, the two ends of the heating steel roller 212 are fixed with the coater frame 211 through bearings, and one end of the heating steel roller 212 is in transmission connection with a transmission system. It should be noted that the pivot connection between the heating steel roll 212 and the coater frame 211 and the transmission connection between the heating steel roll 212 and the transmission system are all achieved by the prior art means of the existing coater, and are not described herein too much. The heating steel roller 212 can heat or keep warm the PUR hot melt adhesive 13, and the heating principle is the prior art of the existing coating machine and is not described herein again. The circumferential surface of the heated steel roll 212 is provided with a texture formed by uniformly distributed micropores. The micropores are conical concave holes, the mesh number of the micropores is more than or equal to 100 meshes, so that the micropores have a certain space for accommodating glue solution and are fine.
Two ends of the polyurethane elastic rubber roller 213 are pivoted to the coater frame 211, and two ends of the polyurethane elastic rubber roller 213 are fixed with the coater frame 211 through bearings. Wherein, one end of the polyurethane elastic rubber roller 213 can be in transmission connection with a transmission system or not; when the polyurethane elastic rubber roller 213 is not connected with the transmission system, the metal sheet 12 is driven by the heating steel roller 212, and the metal sheet 12 drives the polyurethane elastic rubber roller 213 to make the polyurethane elastic rubber roller 213 passively rotate. The polyurethane elastic rubber roller 213 is arranged at the side of the heating steel roller 212, and the axis of the polyurethane elastic rubber roller 213 is parallel to the axis of the heating steel roller 212. The polyurethane elastic rubber roller 213 may be disposed below the heating steel roller 212, or may be disposed on the left or right, but the polyurethane elastic rubber roller 213 and the heating steel roller 212 must be kept parallel. A gap for threading is provided between the heating steel roller 212 and the polyurethane elastic rubber roller 213, which is slightly smaller than the thickness of the metal sheet 12, so that the heating steel roller 212 and the polyurethane elastic rubber roller 213 can clamp the metal sheet 12. The polyurethane elastic rubber roller 213 is an elastic polyurethane roller, so that the heating steel roller 212 and the polyurethane elastic rubber roller 213 can clamp the metal sheet 12 better.
The heating blade 214 is fixed to the coater frame 211, the edge of the heating blade 214 contacts the circumferential surface of the heating steel roll 212, the edge of the heating blade 214 is parallel to the heating steel roll 212, and the heating blade 214 and the circumferential surface of the heating steel roll 212 form a V-shaped included angle space 215. The heating blade 214 can heat or keep warm the PUR hot melt adhesive 13, the heating principle is prior art of the existing coating machine, and is not described herein.
The glue is coated through uniformly distributed micropores, so that the glue is more uniformly coated; the glue coating amount is limited by the volume and the number of the micropores, so that the metering is more accurate; when gluing, only need with PUR hot melt adhesive 13 carry the contained angle space can, need not carry out glue transport through other rollers, easy operation. Compared with a fog coater, the glue coater 21 of the embodiment has more uniform gluing; compared with a gap coater, the requirement on the purity of glue solution is reduced, even if the glue blocks in the particle shape exist, the glue blocks can be crushed by the heating scraper 214, and linear missing coating caused by blockage can not occur; compared with a roller type transfer coating machine, the roller type transfer coating machine does not need a metering roller, a transfer roller and the like, and has a simpler structure; compared with a scraper type coating machine, the glue solution is carried to the surface of the metal belt through the micropores, no included angle gap exists, the influence of sundries does not need to be worried, the gluing amount is limited through the micropores, the gluing is uniform, and the metering is accurate.
In order to supply the metal sheet 12 to the glue coater 21, the production apparatus further comprises a winding and unwinding machine 23, the winding and unwinding machine 23 is in process connection with the glue coater 21, and the winding and unwinding machine 23 is used for conveying the metal sheet 12 to the glue coater 21. The winding and unwinding machine 23 comprises a symmetrical frame, a connecting shaft 233 and an expansion and contraction disk 234. The symmetrical machine frame is similar to the symmetrical machine frame of the existing bidirectional chuck type unreeling machine and comprises a base 231 and a supporting arm 232; in contrast, the support arm 232 in this embodiment is similar to the support arm of the single arm frame of the single arm hydraulic expanding and contracting type unreeling machine, rather than the support arm of the symmetrical frame of the bidirectional chuck type unreeling machine employed. The supporting arms 232 are provided with two, the two supporting arms 232 are arranged on the base 231 at intervals, and the distance between the two supporting arms 232 is larger than the length of the winding drum. Each support arm 232 is rotatably provided with a connecting shaft 233, the extension lines of the axes of the two connecting shafts 233 are overlapped, the expansion and contraction disk 234 is fixed at the end part of the connecting shaft 233, and the expansion and contraction disk 234 is positioned between the two support arms 232. The collapsible disc 234 and the connecting shaft 233 in this embodiment are similar to those of the single-arm hydraulic collapsible unwinder.
Compared with the existing bidirectional chuck type unreeling machine, the winding and unwinding machine 23 of the embodiment effectively fixes the winding drum by adopting the expansion disc with the tensioning function, so that the coiled material is prevented from falling off, the safety coefficient is improved, and the bearing tonnage is improved; compared with the existing single-arm hydraulic expansion-contraction type unreeling machine, the winding-unwinding machine 23 of the embodiment respectively fixes an expansion-contraction disk by adopting two supporting arms arranged at intervals, so that the gravity center of the fixed coil is prevented from dropping, and the balance degree of the unreeled plate is ensured; compared with the two existing devices, the winding and unwinding machine 23 has the advantages of large bearing tonnage, high safety factor, no center of gravity shift and good balance.
In order to ensure the expansion or contraction of the expansion and contraction disk 234, the winding and unwinding machine further comprises a hydraulic oil cylinder 235 and a hydraulic station, the connecting shaft 233 is a hollow shaft, one end of the connecting shaft 233 is communicated with a hydraulic cavity in the expansion and contraction disk 234, the other end of the connecting shaft 233 is communicated with the hydraulic oil cylinder 235, and the hydraulic station is connected with the hydraulic oil cylinder 235 through a hydraulic pipeline. The expansion disc 234 is used for expanding the winding drum through a hydraulic station and a hydraulic oil cylinder 235. In order to enable the collapsible disc 234 to have rotary power, the take-up and pay-off machine further comprises a gear box 236 and a motor 237 which are fixed on the symmetrical machine frame, the gear box 236 is in transmission connection with the connecting shaft 233, and the gear box 236 is in transmission connection with the motor 237. The motor 237 drives the connecting shaft 233 to rotate through the gear box 236, so that the expansion and contraction disk 234 has a rotating power. Hydraulic rams 235 and hydraulic stations, as well as gear box 236 and motor 237, are known in the art.
In the embodiment, all the devices are electrically controlled and connected by an electric control system commonly used in the field, and all the devices are cooperatively produced under the action of the electric control system.
As shown in FIG. 6, the production method of the gold-plastic composite board comprises the steps of gluing, synchronously feeding into a compound machine for compounding and the like by using the production equipment.
And step S1, gluing. And erecting a metal sheet reel on a winding and unwinding machine, and feeding the metal sheet into a glue coating machine. Under the action of a heating steel roller, a heating scraper and a polyurethane elastic rubber roller of the glue coating machine, the PUR hot melt adhesive with the temperature of 110-140 ℃ is uniformly coated on one side surface of the metal sheet close to the PVC foaming plate, and the coated metal sheet is sent to a compound machine. The glue coating machine is provided with two glue coating machines which are respectively positioned above and below the compound machine and are used for coating glue on the metal sheets on the upper side and the lower side of the PVC foaming plate.
In step S2, the synchronous feed is combined in the multifunction device. And (3) conveying the cooled and molded PVC foaming plate into a compound machine by a tractor, and synchronously conveying the PVC foaming plate and the metal sheet into the compound machine. The metal sheets coated with the glue by the two glue coating machines are respectively positioned on the upper side and the lower side of the PVC foaming plate, and one side of each metal sheet coated with the PUR hot melt glue faces the PVC foaming plate. The PVC foaming plate and the metal sheet are extruded by the pair of composite rollers in the composite machine, the PVC foaming plate and the metal sheet are compounded and molded under the action of the PUR hot melt adhesive to form a three-layer-structured gold-plastic composite plate, and if the PUR hot melt adhesive is also one layer, the three-layer-structured gold-plastic composite plate is a five-layer-structured gold-plastic composite plate. Wherein the metal sheet can be a copper strip, an iron strip or an aluminum strip.
Wherein, the mechanical equipment in each step is produced cooperatively under the action of an electric control system commonly used in the field.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (7)

1. The production equipment of the plastic-gold composite board is characterized by comprising a glue coating machine and a compound machine which are connected in a working procedure, wherein the glue coating machine is used for uniformly coating a PUR hot melt adhesive on one surface, close to a PVC foaming board, of a metal sheet, the glue coating machine is provided with two glue coating machines, the two glue coating machines are respectively positioned above and below the compound machine, and the compound machine is used for enabling the PVC foaming board and the metal sheet which synchronously enter the compound machine to be subjected to compound molding under the action of the PUR hot melt adhesive and the extrusion force of the compound machine.
2. The production equipment of the plastic-gold composite board according to claim 1, wherein the glue coater comprises a coater frame, a heating steel roller, a polyurethane elastic rubber roller and a heating scraper, the two ends of the heating steel roller are pivoted with the coating machine frame, the two ends of the polyurethane elastic rubber roller are pivoted with the coating machine frame, the heating steel roller and the polyurethane elastic rubber roller are arranged in parallel, a gap for threading is arranged between the heating steel roller and the polyurethane elastic rubber roller, a reticulate pattern formed by uniformly distributed micropores is arranged on the circumferential surface of the heating steel roller, the heating scraper is fixed on the coating machine frame, the blade part of the heating scraper is contacted with the circumferential surface of the heating steel roller, and the edge part of the heating scraper is parallel to the heating steel roller, and the heating scraper and the circumferential surface of the heating steel roller form a V-shaped included angle space.
3. The production equipment of the plastic-gold composite board as claimed in claim 1, further comprising a reeling and unreeling machine, wherein the reeling and unreeling machine is connected with the glue coating machine, and is used for conveying the metal sheet to the glue coating machine.
4. The plastic-gold composite board production equipment as claimed in claim 3, wherein the reeling and unreeling machine comprises a symmetrical frame, a connecting shaft and a collapsible disc, the symmetrical frame comprises a base and two supporting arms, the two supporting arms are arranged on the base at intervals, one connecting shaft is rotatably arranged on each supporting arm, the axis extension lines of the two connecting shafts coincide with each other, the collapsible disc is fixed at the end part of the connecting shaft, and the collapsible disc is positioned between the two supporting arms.
5. The utility model provides a gold-plastic composite board, its characterized in that, the gold-plastic composite board includes PVC foaming board and sheet metal, sheet metal set up in the both sides face of PVC foaming board sheet metal pass through the PUR hot melt adhesive with PVC foaming board is fixed sheet metal's keeping away from one side of PVC foaming board is equipped with the paint layer that is suitable for printing the outside on paint layer is equipped with the protection film.
6. The plastic-gold composite board of claim 5 wherein the metal sheet is an aluminum strip, an iron strip or a copper strip.
7. A plastic-gold composite board according to claim 5, wherein the thickness of the PVC foam board is 3-20mm, and the thickness of the metal sheet is 0.05-1 mm.
CN201922024538.7U 2019-11-21 2019-11-21 Gold-plastic composite board and production equipment thereof Active CN211492876U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922024538.7U CN211492876U (en) 2019-11-21 2019-11-21 Gold-plastic composite board and production equipment thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922024538.7U CN211492876U (en) 2019-11-21 2019-11-21 Gold-plastic composite board and production equipment thereof

Publications (1)

Publication Number Publication Date
CN211492876U true CN211492876U (en) 2020-09-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922024538.7U Active CN211492876U (en) 2019-11-21 2019-11-21 Gold-plastic composite board and production equipment thereof

Country Status (1)

Country Link
CN (1) CN211492876U (en)

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