CN219647987U - Multifunctional automatic production line for polyurethane synthetic leather - Google Patents
Multifunctional automatic production line for polyurethane synthetic leather Download PDFInfo
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- CN219647987U CN219647987U CN202320513461.3U CN202320513461U CN219647987U CN 219647987 U CN219647987 U CN 219647987U CN 202320513461 U CN202320513461 U CN 202320513461U CN 219647987 U CN219647987 U CN 219647987U
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- printer
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- production line
- glue spreading
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 41
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 34
- 239000004814 polyurethane Substances 0.000 title claims abstract description 34
- 239000002649 leather substitute Substances 0.000 title claims abstract description 25
- 239000003292 glue Substances 0.000 claims abstract description 27
- 238000003892 spreading Methods 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000007639 printing Methods 0.000 claims description 32
- 239000010985 leather Substances 0.000 claims description 6
- 238000004049 embossing Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 17
- 238000010146 3D printing Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 8
- 238000004026 adhesive bonding Methods 0.000 description 6
- 239000004744 fabric Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The utility model provides a multifunctional automatic production line of polyurethane synthetic leather, which comprises the following steps: the first gumming machine, the first 3D printer, the first adjusting platform, the second gumming machine, the second 3D printer, the second adjusting platform, the third gumming machine, the third 3D printer and the rotating platform are sequentially arranged from front to back; adjacent devices are connected through a conveyor belt; the automatic glue spreading machine further comprises an industrial personal computer in communication connection with the control components of the first glue spreading machine, the first 3D printer, the first adjusting platform, the second glue spreading machine, the second 3D printer, the second adjusting platform, the third glue spreading machine, the third 3D printer, the rotating platform and the conveyor belt. The utility model overcomes the defect of unsmooth production process of the whole production line through the coordination of the first adjusting platform and the second adjusting platform, and overcomes the defect of single function of the original production line through arranging the rotating platform and matched equipment thereof and adjusting the working state of the rotating platform.
Description
Technical Field
The utility model belongs to the technical field of polyurethane synthetic leather manufacturing, and particularly relates to a multifunctional automatic production line of polyurethane synthetic leather.
Background
In recent years, those skilled in the art have conducted a useful search for applying 3D printing technology to the field of polyurethane synthetic leather production. For example, the application of 3D printing technology in polyurethane synthetic leather (author: lu Lei, carried on leather science and engineering, 2 nd stage of 2021, pages 23-27) is a document which is a more intensive study on the key technical problems and the development trend of the application of 3D printing technology in the technical field of polyurethane synthetic leather manufacturing. As another example, the master paper "thermoplastic polyurethane elastomer 3D printing research" of the university of chemical industry, beijing, university research, wang Jun, has made a more systematic and comprehensive study on the application of 3D printing technology in the technical field of polyurethane synthetic leather manufacturing, and proposed a proposal for the relevant research and development direction. The technical literature (including patent literature, for example, patent publication No. CN 104177815B) related to the application of 3D printing technology in the technical field of polyurethane synthetic leather manufacturing is not listed here.
Before the development work of the present utility model is completed, the applicant completed an utility model named "automatic polyurethane synthetic leather production line" inspired by the research work of applying 3D printing technology to the polyurethane synthetic leather production field by those skilled in the art, and filed an utility model patent application (application number 202222098749.7). For the technical scheme of the utility model, see the patent specification of 202222098749.7 for details.
In general, the technical scheme disclosed in the 202222098749.7 patent has the following beneficial effects:
first, the main part of polyurethane synthetic leather adopts 3D printing technology, has improved productivity by a wide margin.
Secondly, the gluing process and the 3D printing process are alternately performed, so that the adhesive strength between the film layers is improved.
Thirdly, through the cooperation of a plurality of 3D printers, in the same production flow, the probability that the printing nozzle of the 3D printer is blocked or even blocked is greatly reduced.
Fourth, through setting up LED ultraviolet lamp to carry out light curing to the polyurethane material that prints simultaneously, further improved the efficiency of printing process.
Fifth, as for the single device, whether it is a glue coater, a 3D printer, a roll squeezer, or other devices, the devices existing in the prior art can be used, so that the popularization and implementation are facilitated.
However, the technical solutions disclosed in this patent application also have certain technical drawbacks, mainly represented by the following aspects:
first, when the layering thickness of each printer is different or/and the printing material (polyurethane material) is different, the time required for each printer to complete one printing process is different, and the different time may cause the production process of the whole production line to be unsmooth.
Secondly, in the case of different printed polyurethane materials, not the last process step requires the use of a roller press to press (roll) the printed polyurethane material structural layer, and since the last equipment in the automatic production line of the utility model is the roller press, the function of the production line is relatively single.
It should be noted that, according to the tests performed by the inventor for half a year, it was found that using only one or two 3D printers on one production line would make it difficult to meet the process requirements of the final polyurethane synthetic leather product, but it is not necessary to provide 4 or even 5 or more 3D printers on the same production line only for the current and foreseeable future process requirements of the polyurethane synthetic leather product.
Disclosure of Invention
The utility model aims to overcome the technical defects of the 202222098749.7 patent, so as to further improve the level of industrial application of the 3D printing technology in the field of polyurethane synthetic leather manufacturing, and the aim is realized by the following technical scheme:
a multifunctional automatic production line of polyurethane synthetic leather comprises the following equipment:
the first gumming machine, the first 3D printer, the first adjusting platform, the second gumming machine, the second 3D printer, the second adjusting platform, the third gumming machine, the third 3D printer and the rotating platform are sequentially arranged from front to back; adjacent devices are connected through a conveyor belt;
the automatic glue spreading machine further comprises an industrial personal computer in communication connection with the control components of the first glue spreading machine, the first 3D printer, the first adjusting platform, the second glue spreading machine, the second 3D printer, the second adjusting platform, the third glue spreading machine, the third 3D printer, the rotating platform and the conveyor belt.
On the basis of the technical scheme, the utility model can be additionally provided with the following technical means:
the rotary platform has three working state positions, when the rotary platform is in a first working state position, the rotary platform is connected with the leather embossing machine, when the rotary platform is in a second working state position, the rotary platform is connected with the roller press, and when the rotary platform is in a third working state position, the rotary platform is connected with the jacquard machine.
Further, a camera and an LED ultraviolet lamp are arranged beside the printing nozzle of each 3D printer.
The utility model has the main beneficial effects as follows:
first, through the coordination of first adjustment platform and second adjustment platform, overcome the not smooth defect of the production process of whole production line.
Secondly, the utility model overcomes the defect of single function of the original production line by arranging the rotary platform and matched equipment thereof and adjusting the working state position of the rotary platform.
Drawings
FIG. 1 is a schematic plan view of an embodiment of the utility model of 202222098749.7;
FIG. 2 is an enlarged view of a portion of the print head and associated apparatus of FIG. 1;
FIG. 3 is a block diagram of one embodiment of the present utility model;
FIG. 4 is a schematic view of a vertical section of a first adjustment platform according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a vertical section of a rotary stage according to an embodiment of the present utility model.
Detailed Description
In order to describe the technical solution of the present utility model more fully, an embodiment of the present utility model related to a production line is first described with reference to the accompanying drawings.
Fig. 1 is a schematic plan view of an embodiment of the utility model of 202222098749.7, and fig. 2 is an enlarged view of a part of the printing head and related devices in fig. 1.
As shown in fig. 1, an automatic polyurethane synthetic leather production line comprises a first glue spreader 1, a first 3D printer 2, a second glue spreader 3, a second 3D printer 4 (i.e., a 3D printer located in the middle), a third glue spreader 5, a third 3D printer 6, and a roller press 8 located behind the third 3D printer which are alternately arranged from front to back; the adjacent devices (the gumming machine, the 3D printer and the roller press) are connected through a conveyor belt 7 from the first gumming machine 1 at the foremost end to the roller press 8 at the extreme end; the automatic glue spreading machine also comprises an industrial personal computer (not shown in the figure) which is in communication connection with the glue spreading machines, the 3D printer and the control components of the roller press and the conveyor belt, wherein the industrial personal computer can be arranged on one side of a production line or can be arranged at a control center of a production workshop.
As shown in fig. 2, the 202222098749.7 patent of the utility model installs a camera 10 and an LED ultraviolet lamp 12 beside the print head 9 of each 3D printer. The camera 10 is used for acquiring printing information in real time, and the LED ultraviolet lamp 12 is used for synchronously performing light curing treatment on the printed polyurethane material in the printing process.
Fig. 3 is a block diagram of one embodiment of the present utility model. The main difference between the utility model and the polyurethane synthetic leather automatic production line in the patent of CN115305728A is that the multifunctional polyurethane synthetic leather automatic production line is provided with a first adjusting platform between a first 3D printer and a second gumming machine, a second adjusting platform between the second 3D printer and a third gumming machine and a rotating platform behind the third 3D printer.
As shown in fig. 3 (and in combination with fig. 1 and 2), the multifunctional automatic production line for polyurethane synthetic leather in the utility model comprises the following equipment:
the first gumming machine, the first 3D printer, the first adjusting platform, the second gumming machine, the second 3D printer, the second adjusting platform, the third gumming machine, the third 3D printer and the rotating platform are sequentially arranged from front to back; adjacent devices are connected through a conveyor belt;
the automatic glue spreading machine further comprises an industrial personal computer in communication connection with the first glue spreading machine, the first 3D printer, the first adjusting platform, the second glue spreading machine, the second 3D printer, the second adjusting platform, the third glue spreading machine, the third 3D printer, the rotating platform and the control module of the conveyor belt.
As shown in fig. 4, in the present embodiment, the first adjustment platform includes a first frame a1, a first driving wheel a2 mounted on the upper right end of the first frame a1, a first driven wheel a3 mounted on the upper left end of the first frame a1 (so-called left and right, with respect to the orientation shown in the drawing, the left and right also represent the front and rear of the production line, and the following are the same), a first belt a4 sleeved on the first driving wheel a2 and the first driven wheel a3, and a first adjustment platform operation control module (not shown in the drawing, mountable on the first frame below the driving wheel a 2). The structure of the second adjusting platform is the same as that of the first adjusting platform, and the difference is that the installation positions of the second adjusting platform and the first adjusting platform are different. The first adjusting platform and the second adjusting platform both have the function of coordinating the production process of the production line. For example, according to the set printing program, the situation that the printing process of the first 3D printer is fast and the printing process of the second 3D printer is slow may occur, in this case, the first printed piece printed by the first 3D printer may wait on the first adjustment platform, that is, after waiting for the second printing of the second 3D printer basically completing the second printing of the previous process, the first printed piece is conveyed to the second glue spreader for glue spreading, and then conveyed to the second 3D printer for second printing, in this process, the first 3D printer may continue printing, and convey the new first printed piece formed by continuing printing to the first adjustment platform for subsequent glue spreading and printing. Otherwise, if the printing process of the first 3D printer is slow and the printing process of the second 3D printer is fast, the first 3D printer may be started first, and after at least two first printed parts are printed, the subsequent glue spreading and printing work may be started again (before the subsequent glue spreading and printing work is started, the printed parts printed by the first 3D printer may wait on the first adjustment platform). The second adjustment platform has substantially the same function as the first adjustment platform, and generally, since the third printing 3D printer prints the uppermost structural film layer, the printing of the structural film layer is usually slower than the printing of the second printer, so that the synthetic leather has better hand feeling, and therefore, the printed piece printed by the second 3D printer usually needs to wait for a period of time on the second adjustment platform before entering the subsequent gluing and printing procedures. It should be noted that, if the printing speeds of the three 3D printers are identical according to the set procedure, for example, if the polyurethane materials printed by each 3D printer are identical, the layering thicknesses and the layers are also identical, the functions of the first adjustment platform and the second adjustment platform are equivalent to the channels on the production line. However, it is not uncommon for three 3D printers to print exactly the same speed.
As shown in fig. 5, in this embodiment, the rotary platform includes a frame b1 and a rotary table b2 located above the frame b1, where the frame b1 and the rotary table b2 are movably connected through a rotary shaft b3, a motor b4 for driving the rotary table b2 to rotate is further provided on the frame b1, a plurality of rollers b5 are provided near the edge of the lower side of the rotary table b2 and with the axis center of the rotary shaft b3 as a symmetry point, a driving wheel b6 is provided at the upper right end of the rotary table b2, a driven wheel b7 is provided at the upper left end of the rotary table b2, and a belt b8 sleeved on the driving wheel b6 and the driven wheel b 7.
As shown in fig. 3 and in combination with fig. 5, in the present embodiment, the rotary table has three working positions, when the rotary table is in the first working position (the rotary table b2 rotates 90 degrees counterclockwise from the original position), it is connected with the leather embosser (the belt b8 is connected with the leather embosser), when the rotary table is in the second working position (the rotary table b2 is not rotated or returns to the original position after rotating), it is connected with the roller press (the belt b8 is connected with the roller press), and when the rotary table is in the third working position (the rotary table b2 rotates 90 degrees clockwise from the original position), it is connected with the jacquard machine.
The production method corresponding to the embodiment comprises the following steps:
step one, feeding and gluing; namely, the base cloth layer is conveyed to a front-most gumming machine, and the surface of the base cloth layer is gummed by a first gumming machine;
step two, printing for the first time; namely, the polyurethane materials stored in the material box of the first 3D printer are printed on the base cloth layer by layer according to a set program; simultaneously starting an LED ultraviolet lamp to synchronously carry out light curing treatment on the printed polyurethane material, starting an automatic camera to acquire a 3D printing image, and transmitting the 3D printing image to an industrial personal computer; in the step, a first printing piece formed after the first printing is finished is conveyed to a second gumming machine through a first adjusting platform;
repeating the gluing and 3D printing processes by a second subsequent gluing machine, a second 3D printer, a third gluing machine and a third printer, synchronously performing light curing treatment on the printed polyurethane material by an LED ultraviolet lamp, and acquiring and transmitting a printing image by an automatic camera until the polyurethane material is printed layer by the third 3D printer according to a set program; in the step, the second printing piece finished by the second 3D printer is conveyed to a third gumming machine through a second adjusting platform;
step four, conveying the product obtained after the third 3D printer finishes printing to a rotary platform; and (3) adjusting the working state of the rotary platform, and respectively conveying the products to a leather embossing machine, a roller press and a jacquard.
In addition, the utility model is inheritance and perfection of the technical scheme disclosed in the 202222098749.7 patent, and the content of the specification is not described in detail, and can be referred to the specification of the 202222098749.7 patent and papers such as thermoplastic polyurethane elastomer 3D printing research.
Claims (3)
1. The utility model provides a multi-functional automatic production line of polyurethane synthetic leather which characterized in that: comprising the following devices:
the first gumming machine, the first 3D printer, the first adjusting platform, the second gumming machine, the second 3D printer, the second adjusting platform, the third gumming machine, the third 3D printer and the rotating platform are sequentially arranged from front to back; adjacent devices are connected through a conveyor belt;
the automatic glue spreading machine further comprises an industrial personal computer in communication connection with the control components of the first glue spreading machine, the first 3D printer, the first adjusting platform, the second glue spreading machine, the second 3D printer, the second adjusting platform, the third glue spreading machine, the third 3D printer, the rotating platform and the conveyor belt.
2. The multifunctional automatic production line for polyurethane synthetic leather according to claim 1, wherein: the rotary platform has three working state positions, when the rotary platform is in a first working state position, the rotary platform is connected with the leather embossing machine, when the rotary platform is in a second working state position, the rotary platform is connected with the roller press, and when the rotary platform is in a third working state position, the rotary platform is connected with the jacquard machine.
3. The multifunctional automatic production line for polyurethane synthetic leather according to claim 1, wherein: a camera and an LED ultraviolet lamp are arranged beside the printing spray heads of each 3D printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320513461.3U CN219647987U (en) | 2023-03-16 | 2023-03-16 | Multifunctional automatic production line for polyurethane synthetic leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320513461.3U CN219647987U (en) | 2023-03-16 | 2023-03-16 | Multifunctional automatic production line for polyurethane synthetic leather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219647987U true CN219647987U (en) | 2023-09-08 |
Family
ID=87860995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320513461.3U Active CN219647987U (en) | 2023-03-16 | 2023-03-16 | Multifunctional automatic production line for polyurethane synthetic leather |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219647987U (en) |
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2023
- 2023-03-16 CN CN202320513461.3U patent/CN219647987U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240117 Address after: 434300 Qingji Industrial Park (Room 301, Office Building of Development Zone Management Committee), Yangjiachang Town, Gong'an County, Jingzhou City, Hubei Province (self declared) Patentee after: Hubei Qili Polymer Materials Co.,Ltd. Address before: No.1, Zone C, Xiongxing Industrial Avenue, Qingyuan hi tech Industrial Development Zone, Guangdong 511500 Patentee before: QINGYUAN QILI SYNTHETIC LEATHER Co.,Ltd. |
|
| TR01 | Transfer of patent right |