Production device for preparing ultrathin polyurethane base material

Abstract

The utility model discloses a production device for preparing an ultrathin polyurethane base material, which comprises a bottom plate, side plates are arranged on the upper surfaces of the two ends of the bottom plate, a back roller is arranged between the two side plates, a comma scraper with adjustable height is arranged on one side of the back roller, movable seats are arranged at the two ends of the comma scraper, and the movable seats are arranged on the bottom plate. The movable seat is connected with the side plate in an up-down sliding mode, and a driving structure used for driving the movable seat to move up and down is arranged on the side plate. Through the arrangement of the driving structure, the distance between the comma scraper and the back roller is conveniently and flexibly adjusted, so that the coating thickness is conveniently and flexibly adjusted, the practicability is high, adjustment is simple and rapid, meanwhile, the mounting plate, the lead screw, the movable seat and the comma scraper are integrated, and under the action of the mounting groove, the coating thickness can be conveniently adjusted. And the whole body and the side plates can be conveniently disassembled and assembled, and the flexibility of the structure is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyurethane substrate production, and particularly relates to a production device for preparing an ultra-thin polyurethane substrate. Background Art

[0002] For polyurethane substrates, the coated fabric has a plump and elastic feel, and a film-like surface. Polyurethane-coated fabrics are mainly used in outdoor clothing, military, etc. Their characteristics mainly include moisture permeability, abrasion resistance, wind resistance, and softness. In terms of the coating form of polyurethane coating, it can be simply divided into water-based and solvent-based polyurethanes. Solvent-based polyurethanes have good film-forming properties, strong adhesion to fabrics, and high hydrostatic pressure resistance, and are more suitable for waterproof and moisture-permeable coatings.

[0003] When producing polyurethane substrates, a coating device is required for coating. However, when the existing coating devices are in use, the distance between the comma knife and the back roll cannot be adjusted flexibly, resulting in the inability to adjust the thickness flexibly during the coating process. In addition, the entire comma knife is not easy to install and disassemble with the device, and the structure is relatively complex. Moreover, due to the large discharge port of the storage tank of the existing coating device, it is difficult for the materials to flow on both sides of the discharge port, and most of the materials flow out from the middle part of the discharge port, thus affecting the coating uniformity. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a production device for preparing an ultra-thin polyurethane substrate to solve the technical problems raised in the background art.

[0005] To achieve the above purpose, the specific technical solution of the utility model is as follows: A production device for preparing an ultra-thin polyurethane substrate includes a bottom plate. Both upper surfaces of the two ends of the bottom plate are provided with side plates. A back roll is arranged between the two side plates. A comma knife with adjustable height is arranged on one side of the back roll. Both ends of the comma knife are provided with movable seats. The movable seats are slidably connected to the side plates up and down. And a driving structure for driving the movable seats to move up and down is arranged on the side plates. A storage tank is arranged on the back side of the comma knife between the two side plates. An inclined plate is arranged at the bottom of the storage tank. The end of the inclined plate extends to the back roll. And a discharge port is formed between the inclined plate and the storage tank.

[0006] Preferably, extension plates are arranged on one side of each of the two side plates. Two first guide rollers and a second guide roller are arranged between the two extension plates and are distributed vertically. The first guide roller is located below the second guide roller.

[0007] Preferably, the comma knife is located obliquely above the back roll.

[0008] Preferably, an activity port is provided on the surface of the side plate. The size of the activity seat matches the size of the activity port, and the activity seat is slidably connected to the activity port up and down.

[0009] Preferably, the driving structure includes a mounting plate. A threaded hole is provided in the middle of the surface of the mounting plate. A lead screw is rotatably connected to the middle of the upper surface of the activity seat. The lead screw is threadedly connected to the threaded hole, and a knob is provided at the top of the lead screw. An installation groove matching the size of the mounting plate is provided on the upper surface of the side plate, and the mounting plate and the installation groove are fixedly connected by bolts.

[0010] Preferably, trapezoidal grooves are provided on both side walls of the activity port. First trapezoidal blocks slidably connected to the trapezoidal grooves are provided on both side walls of the activity seat. Second trapezoidal blocks matching the size of the trapezoidal grooves are provided on both sides of the bottom of the mounting plate.

[0011] Preferably, a groove is provided on the surface of the comma doctor blade, and a horizontal bubble level is installed in the groove.

[0012] Preferably, a plurality of equally spaced dividing strips are provided on the surface of the inclined plate extending to the outside of the storage tank along its length direction.

[0013] The production device for preparing an ultra-thin polyurethane substrate of the present utility model has the following advantages:

[0014] 1. By arranging the comma doctor blade obliquely above the back roll, the present utility model can ensure that the working time under the same coating conditions is longer after one-time supply of polyurethane, effectively reduce the occurrence of small pits on the surface of the base fabric caused by air bubbles mixed in during coating, ensure the coating quality, and through the setting of the driving structure, it is convenient to flexibly adjust the distance between the comma doctor blade and the back roll, so as to flexibly adjust the coating thickness. It has strong practicability, simple and fast adjustment. At the same time, the mounting plate, the lead screw, the activity seat and the comma doctor blade are an integral whole, and under the action of the installation groove, it is convenient to disassemble and install the whole integral with the side plate, improving the flexibility of the structure.

[0015] 2. Through the setting of the inclined plate, the present utility model is beneficial to the outflow of polyurethane in the storage tank through the discharge port, and under the action of a plurality of dividing strips, the inclined plate is divided into a plurality of flow channels, which is beneficial to ensuring that each flow channel has polyurethane flowing, and can effectively ensure that the polyurethane is evenly coated on the base fabric. Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is Figure 1 side view of;

[0019] Figure 3 Schematic diagram of the side plate in the present utility model;

[0020] Figure 4 Schematic diagram of the movable seat in the present utility model;

[0021] Figure 5 Schematic diagram of the mounting plate in the present utility model.

[0022] Explanation of the marks in the figure: 1, bottom plate; 2, side plate; 3, extension plate; 4, first guide roller; 5, second guide roller; 6, back roller; 7, comma doctor blade; 8, horizontal bubble level; 9, movable seat; 10, storage tank; 11, inclined plate; 12, discharge port; 13, partition strip; 14, movable opening; 15, trapezoidal groove; 16, mounting groove; 17, first trapezoidal block; 18, lead screw; 19, mounting plate; 20, threaded hole; 21, second trapezoidal block. Specific embodiments

[0023] In the following text, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present utility model. Therefore, the drawings and descriptions are considered to be exemplary in nature rather than restrictive.

[0024] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "length", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the embodiments of the present utility model.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0026] In the embodiments of the present utility model, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0027] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present utility model. To simplify the disclosure of the embodiments of the present utility model, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0028] To better understand the purpose, structure, and function of the present utility model, the following further describes in detail a production device for preparing an ultra-thin polyurethane substrate of the present utility model with reference to the accompanying drawings.

[0029] Such as Figures 1-5As shown in the figure, a production device for preparing an ultra-thin polyurethane substrate of the present utility model includes a bottom plate 1. Side plates 2 are provided on the upper surfaces at both ends of the bottom plate 1. A back roller 6 is provided between the two side plates 2. Extension plates 3 are provided on one side of each of the two side plates 2. Two first guide rollers 4 and a second guide roller 5 are arranged up and down between the two extension plates 3. The first guide roller 4 is located below the second guide roller 5. Through the arrangement of the first guide roller 4 and the second guide roller 5, the base fabric passes through the first guide roller 4, winds around the back roller 6, and then is led out through the second guide roller 5. A comma knife 7 with adjustable height is provided on one side of the back roller 6. The comma knife 7 is located obliquely above the back roller 6, which can ensure a longer continuous working time under the same coating conditions after one supply of polyurethane, effectively reduce the occurrence of fine pits on the surface of the base fabric caused by air bubbles mixed in during coating, and ensure the coating quality. Moving seats 9 are provided at both ends of the comma knife 7. The moving seats 9 are slidably connected to the side plates 2 up and down. An activity port 14 is provided on the surface of the side plate 2. The size of the moving seat 9 matches the size of the activity port 14, and the moving seat 9 is slidably connected to the activity port 14 up and down. A driving structure for driving the moving seat 9 to move up and down is provided on the side plate 2. The driving structure includes a mounting plate 19. A threaded hole 20 is provided in the middle of the surface of the mounting plate 19. A lead screw 18 is rotatably connected to the middle of the upper surface of the moving seat 9. The lead screw 18 is threadedly connected to the threaded hole 20, and a knob is provided at the top of the lead screw 18. An installation groove 16 with a size matching that of the mounting plate 19 is provided on the upper surface of the side plate 2, and the mounting plate 19 and the installation groove 16 are fixedly connected by bolts. By rotating the knob, the lead screw 18 rotates. Under the action of the threaded hole 20 of the mounting plate 19, the moving seat 9 can drive the comma knife 7 to move up and down, so as to facilitate the flexible adjustment of the distance between the comma knife 7 and the back roller 6, and thus facilitate the flexible adjustment of the coating thickness. It has strong practicability, simple and fast adjustment. At the same time, the mounting plate 19, the lead screw 18, the moving seat 9 and the comma knife 7 are an integral whole, and under the action of the installation groove 16, it is convenient to disassemble and install the whole integral with the side plate 2, improving the flexibility of the structure. Trapezoidal grooves 15 are provided on both side walls of the activity port 14. First trapezoidal blocks 17 slidably connected to the trapezoidal grooves 15 are provided on both side walls of the moving seat 9. Second trapezoidal blocks 21 with sizes matching those of the trapezoidal grooves 15 are provided on both sides of the bottom of the mounting plate 19. Through the cooperation between the trapezoidal groove 15 and the first trapezoidal block 17, the moving seat 9 is limited, making the moving seat 9 move more stably when moving up and down. Through the cooperation between the trapezoidal groove 15 and the second trapezoidal block 21, the mounting plate 19 is positioned, facilitating the quick installation of the mounting plate 19. A groove is provided on the surface of the comma knife 7, and a horizontal bubble level 8 is installed in the groove. Through the setting of the horizontal bubble level 8, it is convenient to quickly adjust the level of the comma knife 7.

[0030] A storage tank 10 is arranged between two side plates 2 at the back side of the comma knife 7. An inclined plate 11 is arranged at the bottom of the storage tank 10. The end of the inclined plate 11 extends to the back roller 6. A discharge port 12 is formed between the inclined plate 11 and the storage tank 10. The surface of the inclined plate 11 extends to the outside of the storage tank 10 and is provided with a plurality of equally spaced partition bars 13 along its length direction. Through the arrangement of the inclined plate 11, it is beneficial for the polyurethane in the storage tank 10 to flow out through the discharge port 12. Under the action of the plurality of partition bars 13, the inclined plate 11 is divided into a plurality of flow channels, which is beneficial to ensure that each flow channel has polyurethane flowing, and can effectively ensure that the polyurethane is evenly coated on the base fabric.

[0031] It can be understood that the present utility model is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A production device for preparing an ultra-thin polyurethane substrate, characterized in that: It includes a bottom plate (1). Side plates (2) are provided on the upper surfaces at both ends of the bottom plate (1). A back roller (6) is arranged between the two side plates (2). A comma knife (7) with adjustable height is arranged on one side of the back roller (6). Moving seats (9) are arranged at both ends of the comma knife (7). The moving seats (9) are connected to the side plates (2) for up-and-down sliding connection. And a driving structure for driving the moving seats (9) to move up and down is arranged on the side plates (2). A storage box (10) is arranged on the back side of the comma knife (7) between the two side plates (2). An inclined plate (11) is provided at the bottom of the storage box (10). The end of the inclined plate (11) extends to the back roller (6). And a discharge port (12) is formed between the inclined plate (11) and the storage box (10).

2. The production device for preparing an ultra-thin polyurethane substrate according to claim 1, characterized in that: Extension plates (3) are provided on one side of the two side plates (2). Two first guide rollers (4) and a second guide roller (5) which are distributed up and down are arranged between the two extension plates (3). The first guide roller (4) is located below the second guide roller (5).

3. The production device for preparing an ultra-thin polyurethane substrate according to claim 1, wherein: The comma knife (7) is located obliquely above the back roller (6).

4. A production device for preparing an ultra-thin polyurethane substrate according to claim 1, characterized in that: An activity opening (14) is provided on the surface of the side plate (2). The size of the moving seat (9) matches the size of the activity opening (14). And the moving seat (9) is connected to the activity opening (14) for up-and-down sliding connection.

5. The production device for preparing an ultra-thin polyurethane substrate according to claim 4, characterized in that: The driving structure includes a mounting plate (19). A threaded hole (20) is provided in the middle of the surface of the mounting plate (19). A lead screw (18) is rotatably connected to the middle of the upper surface of the moving seat (9). The lead screw (18) is threadedly connected to the threaded hole (20). And a knob is arranged at the top of the lead screw (18). An installation groove (16) with a size matching that of the mounting plate (19) is provided on the upper surface of the side plate (2). And the mounting plate (19) is fixedly connected to the installation groove (16) by bolts.

6. The production device for preparing an ultra-thin polyurethane substrate according to claim 5, wherein: Trapezoidal grooves (15) are provided on both side walls of the activity opening (14). First trapezoidal blocks (17) which are slidably connected to the trapezoidal grooves (15) are arranged on both side walls of the moving seat (9). Second trapezoidal blocks (21) with sizes matching those of the trapezoidal grooves (15) are arranged on both sides of the bottom of the mounting plate (19).

7. The production device for preparing an ultra-thin polyurethane substrate according to claim 1, characterized in that: A groove is provided on the surface of the comma knife (7), and a horizontal bubble level (8) is installed in the groove. A groove is provided on the surface of the comma knife (7), and a horizontal bubble level (8) is installed in the groove.

8. A production device for preparing an ultra-thin polyurethane substrate according to claim 1, characterized in that: A plurality of equally spaced partition bars (13) are arranged on the surface of the inclined plate (11) extending outside the storage box (10) along its length direction.

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