A coating die

Abstract

This utility model relates to a coating die head, belonging to the technical field of coating machine accessories. It includes an upper die head with a lower die head at its bottom. An outlet is located on the side of the upper die head near the lower die head. Two inclined cavities are formed inside the upper die head, above the outlet, and are interconnected. Fixed boxes are fixedly connected to both sides of the upper die head. Cylinders are fixedly installed on the side of each fixed box away from the upper die head. Sealing plates are slidably installed at both ends inside the outlet. The piston rods of the cylinders extend into the upper die head and are fixedly connected to the corresponding sealing plates. The beneficial effect of this utility model is that the extension and retraction of the cylinder piston rods can drive the corresponding sealing plates to slide within the outlet, thereby sealing the corresponding discharge hole. This allows for adjustment of the outlet size according to the width of the film material, thus meeting the current production needs of PET polyester film and automotive window explosion-proof film.

Description

Technical Field

[0001] This utility model relates to the technical field of coating machine accessories, and in particular to a coating die head. Background Technology

[0002] Coating technology is widely used in light industry, papermaking, plastics processing, information materials and battery manufacturing. The quality of coating has a significant impact on the quality of the product. Coating technology is required when producing products such as PET polyester film and automotive window explosion-proof film.

[0003] A search revealed a Chinese patent disclosure for a coating die head mechanism (authorization announcement number CN208976158U), comprising an upper die head and a lower die head, wherein the upper die head and the lower die head are detachably connected, the lower die head is provided with a cavity and a feed port communicating with the cavity, and a discharge port communicating with the cavity is provided between the upper die head and the lower die head, and further includes a spiral rod rotatably disposed within the cavity. This patented technology can drive the fluid in contact with the spiral rod through the rotation of the spiral rod, so that the spiral rod plays a role in agitating the fluid, improving the fluidity of the fluid in the cavity, preventing the deposition of substances in the fluid, and playing a homogenizing role.

[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious one is that the outlet size of the coating die head is relatively fixed and cannot be adjusted to a suitable size according to the width of the film material, thus failing to meet the current production needs of PET polyester film and automotive window explosion-proof film. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the main objective of this utility model is to provide a coating die head.

[0006] The technical solution of this utility model is as follows: a coating die head includes an upper die head, a lower die head is provided at the bottom of the upper die head, a discharge port is provided on the side of the upper die head near the lower die head, two oblique cavities are provided inside the upper die head and above the discharge port, the two cavities are interconnected, a fixing box is fixedly connected to both sides of the upper die head, a cylinder is fixedly installed on the side of the fixing box away from the upper die head, a sealing plate is slidably installed at both ends inside the discharge port, the piston rod of the cylinder extends into the interior of the upper die head and is fixedly connected to the corresponding sealing plate, and a discharge hole is provided equidistantly inside the upper die head between the cavity and the discharge port.

[0007] By adopting the above technical solution, the extension and retraction of the piston rod of the cylinder can drive the corresponding sealing plate to slide inside the discharge port, thereby sealing the corresponding discharge hole with the sealing plate, and thus adjusting the size inside the discharge port according to the width of the film material.

[0008] In a preferred embodiment, a feeding assembly is provided inside the cavity. The feeding assembly includes mounting brackets that are fixedly connected inside the cavity. Rotating shafts are rotatably connected to the opposite sides of the two mounting brackets. Conveying augers are fixedly connected to the outer sides of the rotating shafts.

[0009] By adopting the above technical solution, the rotation of the rotating shaft can be used to agitate the fluid in the cavity using a conveying auger, allowing the fluid to form a rotating cycle in the direction of rotation of the conveying auger.

[0010] In a preferred embodiment, the feeding assembly further includes brackets fixedly connected to both ends of the outer side of the rotating shaft, and a scraper is fixedly connected between the two brackets.

[0011] By adopting the above technical solution, the rotation of the rotating shaft will drive the bracket to rotate, thereby enabling the scraper to scrape off the residual fluid on the inner wall of the cavity.

[0012] In a preferred embodiment, inclined blocks are fixedly connected to both sides of the upper mold head, and servo motors are fixedly installed on the outer sides of the inclined blocks. The output shafts of the servo motors extend into the cavity and are fixedly connected to the rotation shaft.

[0013] By adopting the above technical solution, the rotation of the output shaft of the servo motor can drive the corresponding rotating shaft to rotate.

[0014] In a preferred embodiment, the scraper abuts against the inner wall of the cavity.

[0015] By adopting the above technical solution and through the contact setting, the scraping effect of the scraper can be improved.

[0016] In a preferred embodiment, the interior of the fixed box is provided with a storage slot that works in conjunction with the sealing plate, and the sealing plate engages with the corresponding storage slot.

[0017] By adopting the above technical solution and setting up the storage slot, the sealing plate can be stored.

[0018] In a preferred embodiment, a plurality of bolts are provided between the upper die head and the lower die head, and the upper die head and the lower die head are connected by bolts.

[0019] By adopting the above technical solution and using bolts, the coating die head becomes detachable.

[0020] In a preferred embodiment, a feed cylinder is fixedly connected to the center of the upper die head, and a connecting flange is fixedly connected to the top of the feed cylinder.

[0021] By adopting the above technical solution and setting a connecting flange, the feed cylinder can be connected to the external feed pipe.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] 1. In this utility model, the extension and retraction of the piston rod of the cylinder can drive the corresponding sealing plate to slide in the discharge port, thereby sealing the corresponding feeding hole with the sealing plate. In this way, the size of the discharge port can be adjusted according to the width of the film material, thus meeting the current production needs of PET polyester film and automotive window explosion-proof film.

[0024] 2. In this utility model, the rotation of the rotating shaft can agitate the fluid in the cavity using the conveying auger, allowing the fluid to form a rotating cycle in the direction of rotation of the conveying auger, thereby improving the fluid's fluidity. When the rotating shaft rotates, it will drive the support to rotate, thereby using the scraper to scrape off the residual fluid on the inner wall of the cavity, reducing adhesion. Attached Figure Description

[0025] Figure 1 This utility model provides an overall three-dimensional view of a coating die head;

[0026] Figure 2 This utility model provides a schematic diagram of the internal structure of a coating die head;

[0027] Figure 3 This utility model provides a coating die head. Figure 2 Enlarged view of point A in the middle.

[0028] Legend: 1. Upper die head; 2. Lower die head; 3. Fixing box; 4. Discharge port; 5. Feed cylinder; 6. Connecting flange; 7. Storage groove; 8. Cavity; 9. Mounting bracket; 10. Rotating shaft; 11. Conveying auger; 12. Support; 13. Scraper; 14. Servo motor; 15. Cylinder; 16. Sealing plate; 17. Discharge hole. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figure 1-3A coating die head includes an upper die head 1, a lower die head 2 at the bottom of the upper die head 1, a discharge port 4 on the side of the upper die head 1 near the lower die head 2, two inclined cavities 8 inside the upper die head 1 and above the discharge port 4, the two cavities 8 being interconnected, a fixing box 3 fixedly connected to both sides of the upper die head 1, a cylinder 15 fixedly installed on the side of the fixing box 3 away from the upper die head 1, sealing plates 16 slidably installed at both ends inside the discharge port 4, and the piston rods of the cylinders 15 extending into the interior of the upper die head 1. It is fixedly connected to the corresponding sealing plate 16. The upper die head 1 has a discharge hole 17 equidistantly opened inside the cavity 8 and the discharge port 4. The coating die head is composed of an upper die head 1 and a lower die head 2. By extending and retracting the piston rod of the cylinder 15, the corresponding sealing plate 16 can be driven to slide in the discharge port 4. In this way, the sealing plate 16 can be used to seal the corresponding discharge hole 17, and the size of the discharge port 4 can be adjusted according to the width of the film material, so as to meet the current production needs of PET polyester film and automotive window explosion-proof film.

[0031] Specifically, a feeding assembly is provided inside the cavity 8. The feeding assembly includes mounting brackets 9 that are fixedly connected inside the cavity 8. A rotating shaft 10 is rotatably connected to the two mounting brackets 9 on opposite sides. A conveying auger 11 is fixedly connected to the outer side of the rotating shaft 10. By rotating the rotating shaft 10, the conveying auger 11 can agitate the fluid inside the cavity 8, allowing the fluid to form a rotating cycle in the direction of rotation of the conveying auger 11, thereby improving the fluid's flowability and accelerating the feeding speed. The feeding assembly also includes brackets 12 that are fixedly connected to both ends of the outer side of the rotating shaft 10. A scraper 13 is fixedly connected between the two brackets 12. When the rotating shaft 10 rotates, it will drive the brackets 12 to rotate, thereby using the scraper 13 to scrape off the residual fluid on the inner wall of the cavity 8, reducing adhesion.

[0032] Specifically, inclined blocks are fixedly connected to both sides of the upper die head 1, and servo motors 14 are fixedly installed on the outer side of the inclined blocks. The output shafts of the servo motors 14 extend into the cavity 8 and are fixedly connected to the rotating shaft 10. The rotation of the output shaft of the servo motor 14 can drive the corresponding rotating shaft 10 to rotate, thereby realizing the transmission of power. The scraper 13 abuts against the inner wall of the cavity 8 to improve the scraping effect of the scraper 13. The fixed box 3 has a storage groove 7 inside that works with the sealing plate 16. The sealing plate 16 is engaged with the corresponding storage groove 7. Multiple bolts are provided between the upper die head 1 and the lower die head 2. The use of bolts makes the coating die head detachable. The upper die head 1 and the lower die head 2 are connected by bolts. The feed cylinder 5 is fixedly connected to the center of the upper die head 1. The top of the feed cylinder 5 is fixedly connected to the connecting flange 6. The connecting flange 6 is used to connect the feed cylinder 5 to the external feed pipe.

[0033] Working principle: First, the feed cylinder 5 is connected to the external feed pipe using the connecting flange 6. Then, the servo motor 14 is started by the external control device. The rotation of the rotating shaft 10 can agitate the fluid in the cavity 8 using the conveying auger 11, so that the fluid forms a rotating cycle with the rotation direction of the conveying auger 11 to accelerate the discharge speed of the fluid. When the rotating shaft 10 rotates, it will drive the bracket 12 to rotate, so that the scraper 13 can scrape off the residual fluid on the inner wall of the cavity 8 to reduce adhesion. The agitated fluid will flow into the discharge port 4 through the discharge hole 17. When it is necessary to adjust the discharge size of the discharge port 4, the piston rod of the cylinder 15 can be controlled to extend and retract, which can drive the corresponding sealing plate 16 to slide in the discharge port 4. In this way, the sealing plate 16 can block the corresponding discharge hole 17, thereby meeting the current production needs of PET polyester film and automotive window explosion-proof film. Finally, the discharge purpose can be achieved through the discharge port 4.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A coating die comprising an upper die (1), characterized in that: The upper mold head (1) is provided with a lower mold head (2) at its bottom. The upper mold head (1) is provided with a discharge port (4) on the side near the lower mold head (2). The upper mold head (1) is provided with two oblique cavities (8) located inside and above the discharge port (4). The two cavities (8) are interconnected. Fixed boxes (3) are fixedly connected to both sides of the upper mold head (1). A cylinder (15) is fixedly installed on the side of the fixed box (3) away from the upper mold head (1). A sealing plate (16) is slidably installed at both ends inside the discharge port (4). The piston rod of the cylinder (15) extends into the interior of the upper mold head (1) and is fixedly connected to the corresponding sealing plate (16). A discharge hole (17) is provided inside the upper mold head (1) and between the cavity (8) and the discharge port (4) at equal intervals.

2. A coating die according to claim 1, characterized in that: The cavity (8) is provided with a feeding assembly. The feeding assembly includes mounting brackets (9) that are fixedly connected inside the cavity (8). The two mounting brackets (9) are rotatably connected to a rotating shaft (10) on opposite sides. The rotating shaft (10) is fixedly connected to a conveying auger (11) on the outer side.

3. A coating die according to claim 2, wherein: The feeding assembly also includes brackets (12) fixedly connected to both ends of the outer side of the rotating shaft (10), and a scraper (13) is fixedly connected between the two brackets (12).

4. The coating die of claim 1, wherein: Both sides of the upper mold head (1) are fixedly connected with inclined blocks, and servo motors (14) are fixedly installed on the outer side of the inclined blocks. The output shafts of the servo motors (14) extend into the cavity (8) and are fixedly connected to the rotating shaft (10).

5. A coating die according to claim 3, wherein: The scraper (13) abuts against the inner wall of the cavity (8).

6. The coating die of claim 1, wherein: The fixed box (3) has a storage slot (7) inside that works with the sealing plate (16), and the sealing plate (16) engages with the corresponding storage slot (7).

7. The coating die of claim 1, wherein: Multiple bolts are provided between the upper die head (1) and the lower die head (2), and the upper die head (1) and the lower die head (2) are connected by bolts.

8. The coating die of claim 1, wherein: The upper die head (1) is fixedly connected to the center of the feed cylinder (5), and the top of the feed cylinder (5) is fixedly connected to the connecting flange (6).

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