Device for preparing organic silicon synthetic leather

Abstract

The utility model relates to a device for preparing organic silicon synthetic leather, which comprises a machine frame and a conveying belt, a base material unreeling assembly is arranged on the machine frame, a blanking assembly, a blade coating assembly and a drying assembly are sequentially arranged on the machine frame along the conveying direction of the conveying belt, the blade coating assembly comprises a base, a scraper plate and a liquid coating roller, the base is arranged on the machine frame, and the scraper plate is arranged on the base. The liquid coating roller is arranged at one end of the base, and the other end of the base is provided with a height adjusting assembly connected with the scraper. The utility model has the advantages that the blanking assembly, the blade coating assembly and the drying assembly which are arranged on the rack are used for sequentially blanking, blade coating and drying a silicon rubber solution on a base material, so that release paper and a stripping process are not needed in the whole synthesis process, and the raw material cost and the processing cost are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a device for preparing organic silicon synthetic leather. BACKGROUND

[0002] In the conventional synthetic leather manufacturing, polyurethane is usually used as a coating material or an impregnation material. This is because the excellent elasticity and physical properties of polyurethane make it suitable as a material for synthetic leather. Its manufacturing method includes dry and wet methods. In the dry method, polyurethane is used as a coating layer and an adhesive layer. A coating liquid prepared by mixing polyurethane, dimethylformamide, methyl ethyl ketone, and pigments in appropriate proportions is coated on a release paper at least once, and then the release paper is passed through a drying machine to volatilize the solvent and form a thin film. On the thin film, a coating liquid prepared by mixing a polyurethane adhesive, a curing agent, a curing accelerator, and dimethylformamide, methyl ethyl ketone in appropriate proportions is coated again, and then a fabric (woven fabric, non-woven fabric, other fabric) is bonded together. After the adhesive is fully cured, the release paper is peeled off, thereby manufacturing synthetic leather. In the wet method, a fabric (non-woven fabric, woven fabric) is impregnated in an impregnation liquid prepared by mixing polyurethane, dimethylformamide, and pigments in appropriate proportions, and then the impregnated fabric is coagulated in a coagulation bath mixed with water and dimethylformamide. Next, a coating liquid prepared by mixing polyurethane, dimethylformamide, and pigments in appropriate proportions is coated on the polyurethane-impregnated fabric, and coagulated in a coagulation bath mixed with water and dimethylformamide, and then dried by passing through a water washing tank and a drying machine, and finally subjected to various post-processing to manufacture synthetic leather. However, the synthetic leather manufactured in this way has problems of working environment due to the use of organic solvents, and environmental problems caused by the residual organic solvents inside the synthetic leather product. To solve the above problems, the existing synthetic leather manufacturing method bonds a release paper coated with silicone rubber to a fabric and dries it, and then peels off the release paper from the fabric to which the release paper is bonded. However, this method has problems of using a release paper and requiring a peeling process, resulting in high manufacturing costs such as raw material costs and processing costs, and the inability to use high-strength silicone rubber. SUMMARY

[0003] The utility model discloses a device for preparing organic silicon synthetic leather, which solves the problem of high manufacturing cost of the existing synthetic leather prepared by a release paper. The device includes a feeding assembly, a scraping assembly, and a drying assembly arranged on a rack. The feeding assembly, the scraping assembly, and the drying assembly sequentially perform the feeding, scraping, and drying of the silicone rubber solution on the substrate. The entire synthetic process does not require the use of a release paper and a peeling process, greatly reducing the raw material cost and the processing cost.

[0004] In order to solve the above technical problems, the utility model is through the following technical scheme realizes: a device for preparing organic silicon synthetic leather, including frame and the conveyer belt of setting on the frame, be equipped with base material unwinding subassembly on the frame, base material unwinding subassembly sets up in the feed end of conveyer belt, along the conveyer belt's direction of conveyance be equipped with the blanking assembly, scraping assembly and drying assembly in proper order on the frame, through blanking assembly to base material delivery silicon rubber solution, the scraping assembly includes base, the scraper for removing the excess silicon rubber solution of base material surface and the coating liquid cylinder that evenly spreads silicon rubber solution on the base material surface, the base sets up on the frame, the coating liquid cylinder sets up at one end of the base, the other end of the base is equipped with the height adjusting assembly that is linked with the scraper.

[0005] Preferably, the base comprises a left vertical plate, a right vertical plate, and a horizontal transverse plate disposed between the left vertical plate and the right vertical plate, the left vertical plate and the right vertical plate are both disposed on the frame, the height adjusting assembly is disposed on the horizontal transverse plate, vertical sliding grooves are provided on the left vertical plate and the right vertical plate, the scraper is disposed in the vertical sliding grooves, a connecting shaft is provided between the left vertical plate and the right vertical plate, and the coating liquid cylinder is sleeved on the connecting shaft. The structure of the base comprising the left vertical plate, the right vertical plate, and the horizontal transverse plate can improve the stability of the entire base, facilitate overall installation and disassembly, and ensure reliable connection. Specifically, an installation block connected to the frame can be provided on the left vertical plate and the right vertical plate, and the installation block is fixed to the frame by screws. The height adjusting assembly is disposed on the horizontal transverse plate, which increases the installation space of the height adjusting assembly and facilitates the installation of the height adjusting assembly. The connecting shaft is provided between the left vertical plate and the right vertical plate. Since the coating liquid cylinder is sleeved on the connecting shaft, the installation of the coating liquid cylinder is facilitated. The connecting shaft is locked by nuts at both ends, which facilitates the installation and disassembly of the coating liquid cylinder and facilitates the replacement and cleaning of the coating liquid cylinder in the future. In addition, the vertical sliding grooves ensure the stability of the scraper during height adjustment.

[0006] Preferably, the height adjusting assembly comprises a gas cylinder and a connecting plate disposed on the gas cylinder. The gas cylinder is fixedly connected to the horizontal transverse plate, and the connecting plate is fixedly connected to the scraper by bolts. The connecting plate can increase the contact area between the gas cylinder and the scraper and ensure the flatness of the scraper installation. In addition, the connecting plate is fixedly connected to the scraper by bolts. Specifically, threaded holes are provided on the scraper, and through holes are provided on the connecting plate. During installation, the bolts pass through the through holes and are screwed into the threaded holes. The connection is reliable, and the installation and disassembly are facilitated.

[0007] Preferably, adjusting nuts or / and adjusting washers are provided on the bolts. The adjusting nuts or / and adjusting washers are disposed between the scraper and the connecting plate. Through the above structure, the distance between the scraper and the connecting plate can be effectively adjusted. Specifically, the distance can be accurately adjusted by changing the number or / and thickness of the adjusting nuts or / and adjusting washers, which meets different installation requirements.

[0008] Preferably, the connecting plate or bolt is provided with a displacement sensor, the rack is provided with a controller connected with the displacement sensor, and the controller is connected with the air cylinder. The displacement sensor can collect the position signal in real time when the height of the scraper is adjusted, so that the height can be accurately adjusted. The controller can control the action of the air cylinder in real time according to the signal of the displacement sensor, so that the automation control is realized and the control efficiency is improved. In addition, the displacement sensor is arranged on the connecting plate or bolt, so that the installation position of the displacement sensor can be set according to the actual installation environment, and different installation requirements can be met.

[0009] Preferably, the base is of an integrated structure, so that the installation structure between various components of the base can be simplified, the installation strength of the entire base is improved, and the service life of the base is improved.

[0010] Preferably, the scraper is a stainless steel scraper, and the liquid coating roller is a stainless steel roller. The scraper is arranged as a stainless steel scraper, so that the scraper has good corrosion resistance and durability, can adapt to different environments, and the service life of the scraper is improved. Similarly, the liquid coating roller is arranged as a stainless steel roller, so that the service life of the liquid coating roller is improved.

[0011] Preferably, the discharging assembly comprises a support and a discharging barrel arranged on the support, the support is mounted on the rack, the bottom end of the discharging barrel is provided with an inclined discharging pipe, and the inclined discharging pipe is provided with a control valve. The discharging assembly is arranged in the structure of the support and the discharging barrel. The discharging barrel is arranged on the rack through the support. Since the bottom end of the discharging barrel is provided with the inclined discharging pipe, and the inclined discharging pipe is provided with the control valve, the discharging efficiency can be improved, the blockage of the inclined discharging pipe can be reduced, and the flow and speed of the control valve can be controlled.

[0012] Preferably, the discharging barrel is provided with an observation window. The observation window can be used by the operator to obtain the liquid level of the silicone rubber solution in the discharging barrel in real time without opening the discharging barrel, so that the safety performance is improved.

[0013] Preferably, the drying assembly comprises an oven and a hot-pressing roller assembly. The oven is arranged on the rack, and the hot-pressing roller assembly is arranged on the rack on one side of the discharge port of the oven. The oven and the hot-pressing roller assembly are connected with the controller. The drying assembly is arranged in the structure of the oven and the hot-pressing roller assembly. The substrate coated with the silicone rubber solution is subjected to the first curing treatment through the oven, and then subjected to the hot-pressing fixing treatment through the hot-pressing roller assembly, so that the curing quality can be improved. In addition, the oven and the hot-pressing roller assembly are connected with the controller, so that the temperature of the oven and the hot-pressing roller assembly can be well controlled, and the precise coordinated control of the temperature can be realized.

[0014] In summary, the advantages of this invention are as follows: Firstly, the feeding assembly, coating assembly, and drying assembly on the frame sequentially feed the silicone rubber solution to the substrate, coat the silicone rubber solution, and dry the silicone rubber solution. This eliminates the need for release paper and peeling processes, significantly reducing raw material and processing costs. Secondly, the coating assembly is structured as a base, coating roller, and scraper. The coating roller evenly coats the silicone rubber solution onto the substrate surface, and the scraper removes excess solution. The coating roller and scraper provide a dual function, ensuring more even coating and effectively preventing bubbles or pinholes, thus improving product quality and stability. Finally, the scraper is mounted on the base via a height adjustment assembly, allowing for adjustable scraper height based on film thickness. This effectively controls the contact pressure between the scraper and the substrate, preventing material damage from excessive pressure or poor scraping results from insufficient pressure, further enhancing the overall effectiveness of the device. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the apparatus for preparing organosilicon synthetic leather according to the present invention;

[0017] Figure 2 This is a schematic diagram of the coating assembly in this utility model;

[0018] Figure 3 This is a schematic diagram of the scraper installation structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the feeding assembly in this utility model;

[0020] Figure 5 This is a schematic diagram of the drying component in this utility model.

[0021] Figure label:

[0022] 1. Frame, 11. Conveyor belt, 12. Controller, 2. Substrate unwinding assembly, 3. Feeding assembly, 31. Support, 32. Feeding hopper, 33. Inclined feeding pipe, 34. Control valve, 35. Observation window, 4. Scraper assembly, 41. Base, 411. Left vertical plate, 412. Right vertical plate, 413. Horizontal plate, 414. Vertical chute, 415. Connecting shaft, 42. Scraper, 43. Coating roller, 44. Height adjustment assembly, 441. Cylinder, 442. Connecting plate, 443. Bolt, 444. Adjusting nut, 445. Adjusting shim, 45. Displacement sensor, 5. Drying assembly, 51. Oven, 52. Hot press roller assembly. DETAILED DESCRIPTION

[0023] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, a device for preparing silicone synthetic leather, comprising a rack 1 and a conveying belt 11 arranged on the rack 1, the rack 1 is provided with a base material unwinding assembly 2, the base material unwinding assembly 2 is prior art, and the present example will not be described in detail, the base material unwinding assembly 2 is arranged at the feeding end of the conveying belt 11, and a discharging assembly 3, a scraping assembly 4 and a drying assembly 5 are sequentially arranged on the rack 1 along the conveying direction of the conveying belt 11, Figure 1 the direction of the arrow is the conveying direction of the conveying belt, the silicone rubber solution is conveyed to the base material through the discharging assembly, the scraping assembly 4 comprises a base 41, a scraper 42 for removing excess silicone rubber solution on the surface of the base material, and a liquid coating roller 43 for uniformly coating the silicone rubber solution on the surface of the base material, the base 41 is arranged on the rack 1, the liquid coating roller 43 is arranged at one end of the base 41, and the other end of the base 41 is provided with a height adjusting assembly 44 connected with the scraper 42.

[0024] The base material is sequentially subjected to discharging of the silicone rubber solution, scraping of the silicone rubber solution and drying treatment of the silicone rubber solution through the discharging assembly, the scraping assembly and the drying assembly arranged on the rack, so that the entire synthesis process does not need to use release paper and stripping process, greatly reducing the raw material cost and processing cost, secondly, the scraping assembly is arranged in the structure of the base, the liquid coating roller and the scraper, the silicone rubber solution is uniformly coated on the surface of the base material by the liquid coating roller, and the excess silicone rubber solution on the surface of the base material is scraped off by the scraper, the liquid coating roller and the scraper can play a double role on the silicone rubber solution, so that the silicone rubber solution can be more uniformly coated on the surface of the base material, and the phenomenon of bubbles or pinholes on the surface can be effectively avoided, thereby improving the quality and stability of the product, finally, the scraper is arranged on the base through the height adjusting assembly, so that the height of the scraper on the base can be adjusted, thereby the height position of the scraper can be quickly adjusted according to the thickness of the film, and the contact pressure between the scraper and the base material can be effectively controlled, avoiding the problems of material damage caused by excessive pressure or poor scraping effect caused by insufficient pressure, further improving the use effect of the entire device.

[0025] The base 41 comprises a left vertical plate 411, a right vertical plate 412 and a horizontal transverse plate 413 arranged between the left vertical plate 411 and the right vertical plate 412, the left vertical plate 411 and the right vertical plate 412 are arranged on the rack, the height adjusting assembly 44 is arranged on the horizontal transverse plate 413, the left vertical plate 411 and the right vertical plate 412 are each provided with a vertical sliding groove 414, the scraper 42 is arranged in the vertical sliding groove 414, a connecting shaft 415 is arranged between the left vertical plate 411 and the right vertical plate 412, and the liquid coating roller 43 is sleeved on the connecting shaft 415. The specific mounting structure is prior art, and the embodiment will not be described in detail. The base is arranged in the structure of the left vertical plate, the right vertical plate and the horizontal transverse plate, so that the stability of the entire base can be improved, the overall installation and disassembly are convenient, the connection is reliable, specifically, an installation block connected with the rack can be arranged on each of the left vertical plate and the right vertical plate, the installation block is fixed on the rack through screws, secondly, the height adjusting assembly is arranged on the horizontal transverse plate, so that the mounting space of the height adjusting assembly is increased, the installation of the height adjusting assembly is facilitated, finally, the connecting shaft is arranged between the left vertical plate and the right vertical plate, since the liquid coating roller is sleeved on the connecting shaft, the installation of the liquid coating roller is facilitated, the both ends of the connecting shaft in the embodiment are locked by nuts, so that the installation and disassembly of the liquid coating roller are facilitated, the replacement and cleaning of the liquid coating roller in the subsequent process are facilitated, in addition, the arrangement of the vertical sliding groove ensures the stability of the scraper during height adjustment. The height adjusting assembly 44 comprises a connecting plate 442 and a cylinder 441 arranged on the connecting plate 442, the cylinder 441 is fixedly connected to the horizontal transverse plate 413, and the connecting plate 442 is fixedly connected to the scraper 42 through a bolt 443. The connecting plate can increase the contact area of the cylinder and the scraper, so as to ensure the flatness of the scraper during installation. In addition, the connecting plate is fixedly connected to the scraper through the bolt, specifically, a threaded hole is arranged on the scraper, a through hole is arranged on the connecting plate, the bolt passes through the through hole and is screwed into the threaded hole during installation, the connection is reliable, and the installation and disassembly are convenient.

[0026] The bolt 443 is provided with an adjusting nut 444 and / or an adjusting washer 445, which are arranged between the scraper 42 and the connecting plate 442. Through the arrangement of the above structure, the distance between the scraper and the connecting plate can be effectively adjusted. Specifically, the adjusting nut and / or the adjusting washer can be changed in number and / or thickness to achieve accurate adjustment and meet different installation requirements. The connecting plate 442 or the bolt 443 is provided with a displacement sensor 45, and the rack 1 is provided with a controller 12 connected with the displacement sensor 45. The controller 12 is connected with the air cylinder 441. The arrangement of the displacement sensor can collect the position signal in real time when the height of the scraper is adjusted, so that the height can be accurately adjusted. The arrangement of the controller can control the action of the air cylinder in real time according to the signal of the displacement sensor, so that the automatic control is realized and the control efficiency is improved. In addition, the displacement sensor is arranged on the connecting plate or the bolt, so that the installation position of the displacement sensor can be set according to the actual installation environment, different installation requirements are met, and the displacement sensor in the embodiment is preferably arranged on the connecting plate.

[0027] The base 41 is of an integrated structure, which can simplify the mounting structure between various components of the base, improve the mounting strength of the entire base, and thus improve the service life of the base. The scraper 42 is a stainless steel scraper 42, and the liquid coating roller 43 is a stainless steel roller 43. The scraper is arranged as a stainless steel scraper, which can make the scraper have good corrosion resistance and durability, can make the scraper adapt to different environments, and improve the service life of the scraper. Similarly, the liquid coating roller is arranged as a stainless steel roller, which can improve the service life of the liquid coating roller.

[0028] The discharging assembly 3 comprises a support 31 and a discharging barrel 32 arranged on the support 31, the support 31 is installed on the rack 1, the bottom end of the discharging barrel 32 is provided with an inclined discharging pipe 33, the inclined discharging pipe 33 is provided with a control valve 34, the discharging assembly is arranged in the structure of the support and the discharging barrel, the discharging barrel is arranged on the rack through the support, since the bottom end of the discharging barrel is provided with the inclined discharging pipe, and the inclined discharging pipe is provided with the control valve, therefore, the discharging efficiency can be improved, the blockage of the inclined discharging pipe is reduced, the control valve can control the flow and the speed, in use, the silicone rubber solution is conveyed into the discharging barrel through a pipeline, then the opening of the inclined discharging pipe is controlled through the control valve to realize the discharging of the silicone rubber solution. The discharging barrel 32 is provided with an observation window 35, the observation window is arranged, the liquid level of the silicone rubber solution in the discharging barrel can be obtained in real time without opening the discharging barrel by an operator, and the safety performance is improved. The drying assembly 5 comprises an oven 51 and a hot-pressing roller assembly 52, the oven 51 is arranged on the rack 1, the hot-pressing roller assembly 52 is arranged on the rack 1 on the discharge port side of the oven 51, and the oven 51 and the hot-pressing roller assembly 52 are connected with the controller 12, the drying assembly is arranged in the structure of the oven and the hot-pressing roller assembly, the base material coated with the silicone rubber solution is subjected to the first curing treatment through the oven, then the hot-pressing roller assembly is used for hot-pressing fixing treatment, the curing quality can be improved, in addition, the oven and the hot-pressing roller assembly are connected with the controller, the temperature of the oven and the hot-pressing roller assembly can be well controlled, and precise coordinated control of the temperature can be realized, the oven and the hot-pressing roller assembly are prior art, and the specific structure will not be described in detail in the embodiment.

[0029] In addition to the preferred embodiments described above, the utility model also has other implementation manners, and various changes and deformations can be made by those skilled in the art according to the utility model, as long as the changes and deformations do not deviate from the spirit of the utility model, and the changes and deformations shall belong to the range defined by the claims of the utility model.

Claims

1. A device for preparing silicone synthetic leather, comprising a rack (1) and a conveying belt (11) arranged on the rack (1), wherein a base material unwinding assembly (2) is arranged on the rack (1) and at the feeding end of the conveying belt (11), characterized in that: The machine frame (1) is sequentially provided with a discharging assembly (3), a scraping assembly (4) and a drying assembly (5) along the conveying direction of the conveying belt (11), the discharging assembly is used for conveying the silicone rubber solution to the substrate, the scraping assembly (4) comprises a base (41), a scraper (42) used for scraping the excess silicone rubber solution on the surface of the substrate, and a coating roller (43) used for uniformly coating the silicone rubber solution on the surface of the substrate, the base (41) is arranged on the machine frame (1), the coating roller (43) is arranged at one end of the base (41), and the other end of the base (41) is provided with a height adjusting assembly (44) connected with the scraper (42).

2. A device for preparing a silicone synthetic leather according to claim 1, characterized in that: The base (41) comprises left vertical plates (411), right vertical plates (412) and horizontal cross plates (413) arranged between the left vertical plates (411) and the right vertical plates (412), the left vertical plates (411) and the right vertical plates (412) are arranged on the machine frame, the height adjusting assembly (44) is arranged on the horizontal cross plates (413), the left vertical plates (411) and the right vertical plates (412) are provided with vertical sliding grooves (414), the scraper (42) is arranged in the vertical sliding grooves (414), and the left vertical plates (411) and the right vertical plates (412) are provided with a connecting shaft (415) arranged therebetween, and the coating roller (43) is sleeved on the connecting shaft (415).

3. A device for preparing a silicone synthetic leather according to claim 2, characterized in that: The height adjusting assembly (44) comprises a gas cylinder (441) and a connecting plate (442) arranged on the gas cylinder (441), the gas cylinder (441) is fixedly connected to the horizontal cross plates (413), and the connecting plate (442) is fixedly connected to the scraper (42) through bolts (443).

4. A device for preparing a silicone synthetic leather according to claim 3, characterized in that: The bolts (443) are provided with adjusting nuts (444) and / or adjusting washers (445), and the adjusting nuts (444) and / or the adjusting washers (445) are arranged between the scraper (42) and the connecting plate (442).

5. A device for preparing a silicone synthetic leather according to claim 3, characterized in that: A displacement sensor (45) is arranged on the connecting plate (442) or the bolts (443), a controller (12) connected with the displacement sensor (45) is arranged on the machine frame (1), and the controller (12) is connected with the gas cylinder (441).

6. A device for preparing a silicone synthetic leather according to claim 2, characterized in that: The base (41) is of an integrated structure.

7. A device for preparing a silicone synthetic leather according to claim 1, characterized in that: The scraper (42) is a stainless steel scraper (42), and the coating roller (43) is a stainless steel roller.

8. A device for preparing a silicone synthetic leather according to claim 1, characterized in that: The discharging assembly (3) comprises a support (31) and a discharging barrel (32) arranged on the support (31), the support (31) is arranged on the machine frame (1), an inclined discharging pipe (33) is arranged at the bottom end of the discharging barrel (32), and a control valve (34) is arranged on the inclined discharging pipe (33).

9. A device for preparing a silicone synthetic leather according to claim 8, characterized in that: An observation window (35) is arranged on the discharging barrel (32).

10. A device for preparing a silicone synthetic leather according to claim 5, characterized in that: The drying assembly (5) comprises an oven (51) and a hot-pressing roller assembly (52), the oven (51) is arranged on the machine frame (1), the hot-pressing roller assembly (52) is arranged on the machine frame (1) on the side of the oven (51) away from the discharging port, and the oven (51) and the hot-pressing roller assembly (52) are connected with the controller (12).

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