Polyurethane coating machine

Abstract

The polyurethane coating machine comprises a feeding roller, a guide roller, a coating roller and machine frames, the machine frames are located on the two sides of the feeding roller, the two sides of the guide roller and the two sides of the coating roller and connected with the feeding roller, the two sides of the guide roller and the two sides of the coating roller through bearings respectively, a material storage box is fixedly installed below the coating roller, and the material storage box is connected with the coating roller through bearings. The device is characterized in that the heating pipe is connected in the storage box in a penetrating manner. The polyurethane coating machine has the beneficial effects that a group of built-in heating equipment consisting of the storage box, the heating pipe, the motor and the stirring impeller is arranged, so that the polyurethane coating machine can provide more uniform and efficient heating operation for a polyurethane liquid material through the built-in heating pipe during operation; meanwhile, the stirring impeller is matched, so that the polyurethane liquid material can keep a better flowing effect, and the coating effect of the polyurethane coating machine can be more uniform and harmonious.

Description

Technical Field

[0001] The utility model relates to the field of coating machines, in particular to a polyurethane coating machine. Background Art

[0002] Coating machines are mainly used in the surface coating process production of films, papers, etc. This machine coats a roll of base material with a specific functional glue, coating, ink, etc., and after drying, it is cut into pieces or wound up.

[0003] In actual use, most of the existing polyurethane coating machines use the method of roller coating to coat polyurethane on materials, and are equipped with containers for storing polyurethane liquid materials. In order to ensure the liquid fluidity of the polyurethane liquid materials, heating devices are usually installed below the liquid material containers, such as resistance heating or hot water heating, etc., to ensure that the polyurethane liquid materials maintain a certain temperature for a long time to ensure their fluidity. Although such heating devices can meet the normal production requirements, the heating effect of the heating device at the bottom of the container usually initially acts on the bottom layer of the liquid material in the container, and then is transmitted to the upper layer of the liquid material. Such a heating method will cause the liquid material to be heated unevenly, easily resulting in poor stability of the temperature change and flow effect of the liquid material, and further affecting the coating effect of the polyurethane coating machine. Summary of the Utility Model

[0004] The technical problem to be solved by the present utility model is to provide a polyurethane coating machine that can further improve the stability of the temperature change and flow effect of the liquid material by adopting an internal heating tube and cooperating with a stirring device in view of the current situation of the prior art.

[0005] The present utility model is realized through the following technical solutions: The present utility model provides a polyurethane coating machine, including a feeding roller, a guiding roller, a coating roller and a frame. The frame is located on both sides of the feeding roller, the guiding roller and the coating roller, and is respectively connected to the feeding roller, the guiding roller and the coating roller through bearings. A storage tank is fixedly installed below the coating roller. It is characterized in that: a heating tube is connected through the storage tank. There are 1 - 5 heating tubes, which are evenly distributed around the coating roller as the center. Electric motors are fixedly installed in both side walls of the storage tank. There are 1 - 10 electric motors, and the electric motors 502 are symmetrically and evenly distributed. The driving output ends of the electric motors are fixedly connected with stirring impellers. The stirring impellers are located in the storage tank, and the number of the stirring impellers increases or decreases synchronously with the number of the electric motors.

[0006] By adopting the above technical solutions, the heating tube can be used to heat the polyurethane liquid material in the storage tank, and the electric motor can drive the stirring impeller to rotate, so as to realize the stirring operation of the polyurethane liquid material in the storage tank.

[0007] Further, first scrapers and second scrapers are evenly distributed on both sides of the coating roller.

[0008] By adopting the above technical solution, the first scraper can quantitatively scrape the liquid material dipped on the coating roller, so that the coating operation of the coating roller can be quantitatively processed, and the second scraper can scrape and clean the coating roller after the coating is completed, avoiding the residual liquid material on the surface of the coating roller.

[0009] Further, sliders are formed at both ends of the first scraper, slide rails are fixedly installed at corresponding positions of the frame and the sliders, and the sliders are slidably connected within the slide rails.

[0010] By adopting the above technical solution, the first scraper can be adjusted in displacement under the action of the slider and the slide rail.

[0011] Further, a driving gear shaft penetrates through the middle of the slider, and the driving gear shaft meshes with the slider.

[0012] By adopting the above technical solution, the driving gear shaft can rotate under the drive of an external device, thereby driving the slider to slide along the slide rail.

[0013] Further, insertion blocks are formed at both ends of the second scraper, insertion seats are formed at corresponding positions of the upper end of the material storage tank and the insertion blocks, and the insertion blocks are inserted into the insertion seats.

[0014] By adopting the above technical solution, the second scraper can be disassembled and replaced after long-term use.

[0015] Further, there are 5 heating tubes.

[0016] By adopting the above technical solution, the heating effect of the heating tubes is ensured to be uniform.

[0017] Further, there are 10 motors and 10 stirring impellers.

[0018] By adopting the above technical solution, the stirring impellers can efficiently stir the polyurethane liquid material in the material storage tank.

[0019] The utility model has the following beneficial effects compared with the prior art:

[0020] The utility model can provide a more uniform and efficient heating operation for polyurethane liquid material through an internal heating device composed of a storage tank, a heating pipe, a motor, and a stirring impeller during the operation of the polyurethane coater. At the same time, the stirring impeller is equipped to keep the polyurethane liquid material in a better flow state, so that the coating effect of the polyurethane coater can be more uniform and coordinated. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a polyurethane coater according to the utility model;

[0022] Figure 2 is a schematic structural diagram of the separated frame of a polyurethane coater according to the utility model;

[0023] Figure 3 is a working schematic diagram of a polyurethane coater according to the utility model;

[0024] Figure 4 is a rear view of a polyurethane coater according to the utility model;

[0025] Figure 5 is a schematic structural diagram of a coating roller and a storage tank in a polyurethane coater according to the utility model;

[0026] Figure 6 is a top view of a storage tank in a polyurethane coater according to the utility model;

[0027] Figure 7 is a cross-sectional view of a storage tank in a polyurethane coater according to the utility model.

[0028] The description of the reference numerals is as follows:

[0029] 1. Feeding roller; 2. Guide roller; 3. Coating roller; 4. Frame; 5. Storage tank; 501. Heating pipe; 502. Motor; 503. Stirring impeller; 601. First scraper; 602. Slide block; 603. Slide rail; 604. Driving gear shaft; 605. Second scraper; 606. Insertion block; 607. Insertion socket. Detailed Embodiment

[0030] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further details the utility model in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0031] As Figure 1 , Figure 3 and Figure 7As shown in the figure, a polyurethane coater in this embodiment includes a feeding roller 1, a guiding roller 2, a coating roller 3 and a frame 4. The frame 4 is located on both sides of the feeding roller 1, the guiding roller 2 and the coating roller 3, and is respectively connected to the feeding roller 1, the guiding roller 2 and the coating roller 3 through bearings. A storage tank 5 is fixedly installed below the coating roller 3. It is characterized in that: a heating pipe 501 is connected through the storage tank 5. There are 1 - 5 heating pipes 501, and they are evenly distributed around the coating roller 3 as the center. The heating pipe 501 can uniformly and efficiently heat the polyurethane liquid material in the storage 5 around the coating roller 3, ensuring the fluidity of the polyurethane liquid material dipped by the coating roller 3. Motors 502 are fixedly installed in both side walls of the storage tank 5. There are 1 - 10 motors 502, and the motors 502 are symmetrically and evenly distributed. The driving output ends of the motors 502 are fixedly connected with stirring impellers 503. The stirring impellers 503 are located in the storage tank 5, and the number of the stirring impellers 503 increases or decreases synchronously with the number of the motors 502. The stirring impellers 503 can stir the polyurethane liquid material in the storage tank 5 driven by the electric 502, improving the uniform heating effect of the polyurethane liquid material in the storage tank 5.

[0032] As Figures 3 - 5 shown, scraping mechanisms are evenly arranged on both sides of the coating roller 3. A first scraper 601 and a second scraper 605 are evenly arranged on both sides of the coating roller 3. The first scraper 601 and the second scraper 605 can perform quantitative coating on the coating roller 3 and scrape off the residual liquid material, ensuring the stable coating operation effect of the coating roller 3. Sliders 602 are formed at both ends of the first scraper 601. Slide rails 603 are fixedly installed at the corresponding positions of the frame 4 and the sliders 602. The sliders 602 are slidably connected in the slide rails 603. A driving gear shaft 604 penetrates through the middle of the slider 602. The driving gear shaft 604 meshes with the slider 602. The rotation of the driving gear shaft 604 can drive the first scraper 601 to perform displacement adjustment through the slider 602, so that the first scraper 601 can perform quantitative processing of liquid materials with different thicknesses on the coating roller 3, meeting different coating processing requirements. Insertion blocks 606 are formed at both ends of the second scraper 605. Insertion seats 607 are formed at the corresponding positions of the upper end of the storage tank 5 and the insertion blocks 606. The insertion blocks 606 are inserted into the insertion seats 607. The second scraper 605 can scrape and clean the coating remaining on the coating roller 3 after coating. The second scraper 605 is fixedly installed to ensure the cleaning effect of scraping the residual coating. After the second scraper 605 is worn after long-term use, it can be disassembled and replaced.

[0033] As Figure 6 and Figure 7 shown, there are 5 heating pipes 501 to ensure the heating effect of the heating pipes 501; there are 10 motors 502 and 10 stirring impellers 503 to ensure the stirring effect of the stirring impellers 503 on the polyurethane liquid material stored in the storage tank 5.

[0034] The specific implementation process of this embodiment is as follows: During use, the feeding roller 2 can guide the material to one side of the coating roller 3, so that the rotating coating roller 3 can dip the coating in the storage tank 5, and then the first squeegee 601 scrapes off an appropriate amount of the dipped coating and then coats it on the surface of the material. Then, the guiding roller 2 guides the material after coating to other processes; the heating pipe 501 can provide heating effect for the polyurethane liquid stored in the storage tank 5, and cooperate with the stirring impeller 503 driven by the motor 502 to promote the flow effect of the polyurethane liquid, so that the polyurethane liquid can be heated efficiently and evenly, ensuring the flow stability of the liquid, so as to make the flow of the liquid dipped by the coating roller 3 stable, and further make the coating effect of the polyurethane coater more uniform and coordinated;

[0035] During the working period of the coating operation, the position of the first squeegee 605 can be adjusted by driving the gear shaft 604, so that the first squeegee 605 can flexibly adjust the scraping effect of the coating on the coating roller 3 to adapt to different processing requirements. The second squeegee 605 can scrape and clean the coating remaining on the coating roller 3 after coating to avoid affecting the dipping effect of the coating roller 3 on the polyurethane liquid.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A polyurethane coater, comprising a feed roller (1), a guide roller (2), a coating roller (3) and a frame (4). The frame (4) is located on both sides of the feed roller (1), the guide roller (2) and the coating roller (3), and is respectively connected to the feed roller (1), the guide roller (2) and the coating roller (3) through bearings. A storage tank (5) is fixedly installed below the coating roller (3), and it is characterized in that: A heating tube (501) is connected through the material storage box (5). There are 1 - 5 heating tubes (501), which are evenly distributed around the coating roller (3). Motors (502) are fixedly installed in both side walls of the material storage box (5). There are 1 - 10 motors (502), and the motors (502) are symmetrically and evenly distributed. The driving output ends of the motors (502) are fixedly connected with stirring impellers (503). The stirring impellers (503) are located inside the material storage box (5), and the number of the stirring impellers (503) increases or decreases synchronously with the number of the motors (502).

2. The polyurethane coater according to claim 1, characterized in that: First scrapers (601) and second scrapers (605) are evenly arranged on both sides of the coating roller (3).

3. The polyurethane coater according to claim 2, characterized in that: Sliders (602) are formed at both ends of the first scraper (601). Slide rails (603) are fixedly installed at the corresponding positions of the frame (4) and the sliders (602). The sliders (602) are slidably connected within the slide rails (603).

4. The polyurethane coater according to claim 3, wherein: A driving tooth shaft (604) penetrates through the middle of the slider (602), and the driving tooth shaft (604) meshes with the slider (602).

5. The polyurethane coater according to claim 2, wherein: Insertion blocks (606) are formed at both ends of the second scraper (605). Insertion seats (607) are formed at the corresponding positions of the upper end of the material storage box (5) and the insertion blocks (606). The insertion blocks (606) are inserted into the insertion seats (607).

6. The polyurethane coater according to claim 1, characterized in that: There are 5 heating tubes (501).

7. The polyurethane coater according to claim 1, wherein: There are 10 motors (502) and 10 stirring impellers (503).

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