A coating roll adjustment mechanism for a coating applicator

Abstract

The utility model discloses a kind of coating roller adjusting mechanism of application coating machine, it is related to coating machine technical field, to solve the technical problem of current equipment adjusting coating roller height precision poor, affect finished product thickness and uniformity, including support and synchronous frame, the support is equipped with two, and two supports are respectively fixed on the two sides upper end of base, the guide roller is rotatably installed in the base inside, the support is C-shaped design, and the inside of support is slidably installed with trapezoidal block and lifting block by the cooperation of sliding block and guide rail respectively transversely and longitudinally, the inside of lifting block is fixed with connecting frame, and two connecting frames are connected by frame body between, the lower side of frame body is rotatably installed with adjusting roller by pivot, and adjusting roller is located on the upside of guide roller, the top of support is fixed with adjusting cylinder, and the inner rod bottom of adjusting cylinder is connected lifting block upper end by hinge piece.

Description

Technical Field

[0001] This utility model relates to the field of coating machine technology, and more specifically, to a coating roller adjustment mechanism for an application coating machine. Background Technology

[0002] A dressing coating machine is a device used to coat adhesives, paints, or inks onto substrates such as films, paper, and non-woven fabrics to produce dressing products. It is used to produce various medical dressings, such as plasters, hydrogel medical dressings, band-aids, and poultices. These dressings achieve functions such as transdermal drug absorption, local treatment, and wound care by being adhered to the skin.

[0003] During the operation of a coating applicator, the medication needs to be evenly applied to the surface of the protective film at the coating roller position. The uniformity and precise control of the medication layer thickness are crucial to the quality of the applied product. However, existing coating applicators use hydraulic mechanisms to raise and lower the coating roller, which results in poor accuracy. Therefore, we propose a coating roller adjustment mechanism for a coating applicator. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a coating roller adjustment mechanism for a coating machine to solve the technical problem that the current equipment has poor accuracy in adjusting the height of the coating roller, which affects the thickness and uniformity of the finished product.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a coating roller adjustment mechanism for a coating machine, including a bracket and a synchronization frame. Two brackets are provided, each fixed to the upper ends of both sides of a base. A guide roller is rotatably mounted inside the base. The bracket is C-shaped, and a trapezoidal block and a lifting block are slidably mounted laterally and longitudinally on the inner side of the bracket via a slider and guide rail. A connecting frame is fixed inside the lifting block, and the two connecting frames are connected by a frame. An adjusting roller is rotatably mounted on the lower side of the frame via a rotating shaft, and the adjusting roller is located above the guide roller. An adjusting cylinder is fixed at the top of the bracket, and the bottom of the inner rod of the adjusting cylinder is connected to the upper end of the lifting block via a hinge. A balancing cylinder is fixed at the bottom rear end of the bracket. The middle of the synchronization frame is rotatably mounted on the outer side of the bracket via a rotating shaft, and the movable rod at the front end of the synchronization frame is connected to the hinge.

[0006] In use, this invention involves manually rotating a screw, which displaces the screw thread to push a trapezoidal block. As the trapezoidal block slides, it is driven upwards by the inclined roller on its upper side. During this upward movement, the inner rod of the adjusting cylinder retracts, increasing the internal air pressure. This increased air pressure ensures the roller remains in contact with the trapezoidal block. The lifting block, via a connecting frame, synchronously raises and lowers the adjusting roller of the frame. This structural design allows the device to precisely adjust the height of the adjusting roller based on the inclination rate of the trapezoidal block, ensuring uniformity of the coating thickness. During the upward movement, the upper air pressure of the adjusting cylinder increases while the lower air pressure decreases. The air chamber is connected to the air cavity at the bottom of the adjusting cylinder. A negative pressure is generated at the bottom of the throttle cylinder. The airflow in the balancing cylinder enters the bottom of the regulating cylinder through the three-way pipe and the second pressure relief valve. At this time, the rod inside the balancing cylinder contracts, causing the adaptor to descend. The adaptor causes the synchronous frame to deflect, and its movable rod part tilts upward. The movable rod connects to the hinge to assist the lifting block in rising. Similarly, when the lifting block descends, the air pressure at the bottom of the regulating cylinder increases. The airflow enters the balancing cylinder through the first pressure relief valve and the three-way pipe, causing the synchronous frame to deflect in the opposite direction to assist the lifting block in descending. Through the above structural design, the regulating cylinder maintains a suitable air pressure to maintain the downward pressure of the lifting block. At the same time, it works with the synchronous frame to complete the auxiliary balancing function, reducing the force required to rotate the screw to adjust the position of the trapezoidal block, and further reducing the difficulty of operation.

[0007] Preferably, a roller is rotatably mounted on the bottom of the lifting block via a rotating shaft, and an inclined surface is provided on the upper side of the trapezoidal block, with the roller fitting against the inclined surface.

[0008] Preferably, a side block is fixed to the bottom of the inner side of the bracket, and a screw is threaded through the side block, with the inner end of the screw rotatably mounted on the front end of the trapezoidal block.

[0009] Preferably, an air box is fixed to the upper rear side of the bracket, and the air box is connected to the bottom cavity of the adjusting cylinder. A first pressure relief valve and a second pressure relief valve are respectively provided at the two side ports of the air box.

[0010] Preferably, the timing frame is L-shaped, and the rear end of the timing frame is provided with a shaft connection part, on which an adapting part is rotatably installed. The lower front end of the timing frame is provided with a sliding groove, and a movable rod is slidably installed in the sliding groove.

[0011] Preferably, the outer end of the movable rod is rotatably sleeved on the shaft on one side of the hinge component, and a spring-loaded assembly is provided at the bottom of the sliding groove. The spring-loaded assembly consists of a plug rod and a spring, with the plug rod inserted into the insertion hole at the inner end of the movable rod, and the outer end of the spring fixed to the inner end of the movable rod.

[0012] Preferably, a three-way pipe is installed at the lower end of one side of the balancing cylinder, and the two upper ends of the three-way pipe are respectively connected to the first pressure relief valve and the second pressure relief valve. The upper end of the inner rod of the balancing cylinder is rotatably connected to the lower end of the adaptor.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model designs a trapezoidal block. By manually rotating a screw, the screw's thread displacement pushes the trapezoidal block. During the sliding process of the trapezoidal block, the inclined roller on the upper side causes the lifting block to rise. During the rising process of the lifting block, the inner rod of the adjusting cylinder is lifted and retracted, increasing the air pressure inside the adjusting cylinder. By adjusting the air pressure of the cylinder, the roller is kept in close contact with the trapezoidal block. The lifting block synchronously drives the adjusting roller of the frame to rise and fall through the connecting frame. Through the above structural design, this device can accurately adjust the height of the adjusting roller by using the inclination rate of the trapezoidal block's inclined surface, ensuring the uniformity of the thickness of the coated drug.

[0015] 2. This utility model also incorporates a synchronous frame design. During the lifting process, the upper air pressure of the regulating cylinder increases while the lower air pressure decreases. Since the air box is connected to the air chamber at the bottom of the regulating cylinder, a negative pressure is generated at the bottom of the regulating cylinder. The airflow in the balancing cylinder enters the bottom of the regulating cylinder through the three-way pipe and the second pressure relief valve. At this time, the rod inside the balancing cylinder contracts, causing the adaptor to descend. The adaptor causes the synchronous frame to deflect, and its movable rod part tilts upward. The movable rod connects to the hinge to assist the lifting block in rising. Similarly, when the lifting block descends, the air pressure at the bottom of the regulating cylinder increases, and the airflow enters the balancing cylinder through the first pressure relief valve and the three-way pipe, causing the synchronous frame to deflect in the opposite direction to assist the lifting block in descending. Through the above structural design, the regulating cylinder maintains a suitable air pressure to maintain the downward pressure of the lifting block, while cooperating with the synchronous frame to complete the auxiliary balancing function, reducing the force required to adjust the position of the trapezoidal block by rotating the screw, and further reducing the difficulty of operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the support structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0019] Figure 4 This is an enlarged structural schematic diagram of the present invention;

[0020] Figure 5 This is a schematic diagram of the synchronization frame structure of this utility model.

[0021] The following are the labels in the diagram: 1. Base; 101. Guide roller; 2. Support; 201. Slider; 202. Balance cylinder; 203. Trapezoidal block; 204. Side block; 205. Screw; 206. Connecting frame; 207. Lifting block; 208. Roller; 209. Hinge; 210. Adjusting cylinder; 3. Frame; 301. Adjusting roller; 4. Air box; 401. T-pipe; 402. First pressure relief valve; 403. Second pressure relief valve; 5. Synchronizing frame; 501. Shaft connection; 502. Adaptive part; 503. Movable rod; 504. Sliding groove; 505. Spring pressure assembly. Detailed Implementation

[0022] like Figures 1 to 4 As shown, this utility model relates to a coating roller adjustment mechanism for a plastering machine, including a bracket 2 and a synchronization frame 5. Two brackets 2 are provided, and each bracket 2 is fixed to the upper ends of both sides of a base 1. A guide roller 101 is rotatably mounted on the inner side of the base 1. The bracket 2 has a C-shaped design, and trapezoidal blocks 203 and lifting blocks 207 are slidably mounted laterally and longitudinally on the inner side of the bracket 2 via sliders 201 and guide rails. A connecting frame 20 is fixed to the inner side of the lifting block 207. 6. The two connecting frames 206 are connected by a frame 3. An adjusting roller 301 is rotatably mounted on the lower side of the frame 3 via a rotating shaft, and the adjusting roller 301 is located above the guide roller 101. A roller 208 is rotatably mounted on the bottom of the lifting block 207 via a rotating shaft. The upper side of the trapezoidal block 203 has an inclined surface, and the roller 208 is in contact with the inclined surface. A side block 204 is fixed to the bottom of the inner side of the bracket 2, and a screw 205 is threaded through the side block 204. The inner end of 5 is rotatably installed at the front end of the trapezoidal block 203. The upper rear side of the bracket 2 is fixed with an air box 4, and the air box 4 is connected to the bottom cavity of the adjusting cylinder 210. The two sides of the air box 4 are respectively provided with a first pressure relief valve 402 and a second pressure relief valve 403. The screw 205 is manually rotated, and the screw 205 pushes the trapezoidal block 203 by its thread displacement. During the sliding process of the trapezoidal block 203, the lifting block 207 is driven to rise through the inclined pressure roller 208 on the upper inclined surface. The lifting block 207 rises past... During the process, the inner rod of the adjusting cylinder 210 is raised and retracted, increasing the air pressure inside the adjusting cylinder 210. By adjusting the air pressure of the adjusting cylinder 210, the roller 208 is kept in contact with the trapezoidal block 203. The lifting block 207 drives the adjusting roller 301 of the frame 3 to rise and fall synchronously through the connecting frame 206. Through the above structural design, this device can accurately adjust the height of the adjusting roller 301 by using the inclination rate of the inclined surface of the trapezoidal block 203, ensuring the uniformity of the thickness of the roller-coated drug.

[0023] like Figures 2 to 5As shown, this utility model relates to a coating roller adjustment mechanism for a plastering machine, including a support 2 and a timing frame 5. An adjusting cylinder 210 is fixed to the top of the support 2, and the bottom of the inner rod of the adjusting cylinder 210 is connected to the upper end of a lifting block 207 via a hinge 209. A balancing cylinder 202 is fixed to the bottom rear side of the support 2. The timing frame 5 is rotatably mounted on the outside of the support 2 via a rotating shaft at its middle position, and the movable rod 503 at the front end of the timing frame 5 is connected to the hinge 209. The timing frame 5 has an L-shaped design, and a shaft connection 501 is provided at the rear end of the timing frame 5. A rotatable mounting plate is mounted on the shaft connection 501. The timing frame 5 is equipped with an adapter 502. A sliding groove 504 is provided on the lower front side of the timing frame 5, and a movable rod 503 is slidably installed in the sliding groove 504. The outer end of the movable rod 503 is rotatably sleeved on the shaft of the hinge 209. A spring-loaded assembly 505 is provided at the bottom of the sliding groove 504. The spring-loaded assembly 505 consists of a rod and a spring. The rod is inserted into the insertion hole at the inner end of the movable rod 503, and the outer end of the spring is fixed to the inner end of the movable rod 503. A three-way pipe 401 is installed at the lower end of one side of the balance cylinder 202. The two upper ends of the three-way pipe 401 are respectively connected to the first pressure relief valve 402. The second pressure relief valve 403 is connected to the upper end of the inner rod of the balance cylinder 202, which is rotatably connected to the lower end of the adaptor 502. During the upward movement, the air pressure at the top of the regulating cylinder 210 increases, while the air pressure at the bottom decreases. The air box 4 is connected to the air chamber at the bottom of the regulating cylinder 210. When a negative pressure is generated at the bottom of the regulating cylinder 210, the airflow in the balance cylinder 202 enters the bottom of the regulating cylinder 210 through the three-way pipe 401 and the second pressure relief valve 403. At this time, the inner rod of the balance cylinder 202 contracts, causing the adaptor 502 to descend. The adaptor 502 causes the synchronous frame 5 to deflect its movable rod 503 and tilt upward. The movable rod 503 connects to the hinge 209 to assist the lifting block 207 in rising. Similarly, when the lifting block 207 descends, the air pressure at the bottom of the adjusting cylinder 210 increases, and the airflow enters the balancing cylinder 202 through the first pressure relief valve 402 and the three-way pipe 401, causing the synchronous frame 5 to deflect in the opposite direction to assist the lifting block 207 in descending. Through the above structural design, the adjusting cylinder 210 maintains a suitable air pressure to maintain the downward pressure of the lifting block 207, while cooperating with the synchronous frame 5 to complete the auxiliary balancing function, reducing the force required to adjust the position of the trapezoidal block 203 by rotating the screw 205, and further reducing the difficulty of operation.

[0024] Working Principle: This embodiment provides a coating roller adjustment mechanism for a coating machine. In use, the screw 205 is manually rotated, causing the screw 205 to move and push the trapezoidal block 203. During the sliding process, the trapezoidal block 203, through the inclined roller 208 on its upper side, drives the lifting block 207 to rise. As the lifting block 207 rises, the inner rod of the adjusting cylinder 210 retracts, increasing the internal air pressure. By adjusting the air pressure of the adjusting cylinder 210, the roller 208 maintains a consistent fit with the trapezoidal block 203. The lifting block 207, through the connecting frame 206, synchronously drives the adjusting roller 301 of the frame 3 to rise and fall. During the rising process, the upper air pressure of the adjusting cylinder 210 increases, while the lower air pressure decreases. The air box 4 is connected to the air chamber at the bottom of the regulating cylinder 210. When a negative pressure is generated at the bottom of the regulating cylinder 210, the airflow in the balancing cylinder 202 enters the bottom of the regulating cylinder 210 through the three-way pipe 401 and the second pressure relief valve 403. At this time, the rod inside the balancing cylinder 202 retracts, causing the adaptor 502 to descend. The adaptor 502 causes the synchronous frame 5 to deflect its movable rod 503 and tilt upward. The movable rod 503 is connected to the hinge 209 to assist the lifting block 207 to rise. Similarly, when the lifting block 207 descends, the air pressure at the bottom of the regulating cylinder 210 increases, and the airflow enters the balancing cylinder 202 through the first pressure relief valve 402 and the three-way pipe 401, causing the synchronous frame 5 to deflect in the opposite direction to assist the lifting block 207 to descend.

[0025] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A coating roller adjustment mechanism for a coating machine, comprising a support (2) and a synchronization frame (5), characterized in that: Two brackets (2) are provided, and the two brackets (2) are fixed to the upper ends of the two sides of the base (1). A guide roller (101) is rotatably installed on the inner side of the base (1). The bracket (2) is C-shaped, and a trapezoidal block (203) and a lifting block (207) are slidably installed on the inner side of the bracket (2) in cooperation with the guide rail via a slider (201) and the lifting block (207) in the horizontal and vertical directions, respectively. A connecting frame (206) is fixed on the inner side of the lifting block (207), and the two connecting frames (206) are connected by a frame (3). The lower side of the frame (3) is open to the air intake. An adjusting roller (301) is rotatably mounted on a rotating shaft, and the adjusting roller (301) is located on the upper side of the guide roller (101). An adjusting cylinder (210) is fixed on the top of the bracket (2), and the bottom of the inner rod of the adjusting cylinder (210) is connected to the upper end of the lifting block (207) through a hinge (209). A balancing cylinder (202) is fixed on the bottom rear side of the bracket (2). The middle part of the synchronous frame (5) is rotatably mounted on the outside of the bracket (2) through a rotating shaft, and the movable rod (503) at the front end of the synchronous frame (5) is connected to the hinge (209).

2. The coating roller adjustment mechanism of a coating machine according to claim 1, characterized in that: The bottom of the lifting block (207) is rotatably mounted with a roller (208) via a rotating shaft. The upper side of the trapezoidal block (203) is provided with an inclined surface, and the roller (208) is in contact with the inclined surface.

3. The coating roller adjustment mechanism of a coating machine according to claim 2, characterized in that: A side block (204) is fixed to the bottom of the inner side of the bracket (2), and a screw (205) is threaded through the side block (204). The inner end of the screw (205) is rotatably installed at the front end of the trapezoidal block (203).

4. The coating roller adjustment mechanism of a coating machine according to claim 3, characterized in that: An air box (4) is fixed to the upper rear side of the bracket (2), and the air box (4) is connected to the bottom cavity of the regulating cylinder (210). A first pressure relief valve (402) and a second pressure relief valve (403) are respectively provided at the two side ports of the air box (4).

5. The coating roller adjustment mechanism of a coating machine according to claim 4, characterized in that: The synchronous frame (5) is designed in an L shape, and the rear end of the synchronous frame (5) is provided with a shaft connection part (501). An adaptor (502) is rotatably installed on the shaft connection part (501). A sliding groove (504) is opened on the lower side of the front end of the synchronous frame (5), and a movable rod (503) is slidably installed in the sliding groove (504).

6. The coating roller adjustment mechanism of a coating machine according to claim 5, characterized in that: The outer end of the movable rod (503) is rotatably sleeved on the shaft on one side of the hinge (209). The bottom of the sliding groove (504) is provided with a spring-loaded assembly (505). The spring-loaded assembly (505) consists of a rod and a spring, with the rod inserted into the inner end of the movable rod (503) and the outer end of the spring fixed to the inner end of the movable rod (503).

7. The coating roller adjustment mechanism of a coating machine according to claim 6, characterized in that: A three-way pipe (401) is installed at the lower end of one side of the balance cylinder (202), and the two upper ends of the three-way pipe (401) are respectively connected to the first pressure relief valve (402) and the second pressure relief valve (403). The upper end of the inner rod of the balance cylinder (202) is rotatably connected to the lower end of the adapter (502).

Images