Replaceable coating head for processing of brightness enhancement film
By designing a rotatable top plate and spring structure, the process of replacing the doctor blade in the doctor blade coating head is simplified, improving work efficiency and coating accuracy, and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SU ZHOU LONG QIAO OPTICAL ELECTRON CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-26
Smart Images

Figure CN224405608U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coating head replacement technology, specifically a replaceable coating head for brightening film processing. Background Technology
[0002] A doctor blade coating head is a coating structure that uses a doctor blade to apply a uniform coating solution. The coating material is conveyed from the feeding system to the pressure zone between the feed roller and the back roller. The feed roller transfers the coating material to the surface of paper or other substrates, and then the doctor blade mounted on the doctor blade beam scrapes off and measures the excess coating material on the substrate surface.
[0003] To improve accuracy, existing doctor blade coating heads have springs installed between the doctor blade beam and the support structure. When the doctor blade needs to be replaced or maintained, the staff must first remove the screws between the components and remove the springs. After replacing the doctor blade, all the screws and springs must be reinstalled, which is quite inconvenient.
[0004] Therefore, this utility model provides a replaceable coating head for brightening film processing. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A replaceable coating head for brightening film processing, comprising a fixed block, a top plate rotatably connected to the top of the fixed block; a micro-head fixedly connected to the top of the top plate, with two micro-heads arranged correspondingly; a scraper provided at the bottom of the top plate; limiting blocks fixedly connected to both ends of the scraper, with the two limiting blocks corresponding to the positions of the fixed block; a first spring and a limiting rod fixedly connected to the side wall of the fixed block, with the first spring and the limiting rod respectively corresponding to the positions of the limiting blocks; limiting holes are provided on the side wall of the limiting blocks; through the above structure, utilizing the rotatable connection between the top plate and the fixed block, the top of the fixed block can be opened, thereby providing convenience for the operator to replace the scraper, which helps to solve the problem of difficult scraper replacement in traditional scraper coating heads and improves the work efficiency of the operator.
[0007] Preferably, a fixing frame is fixedly connected to the bottom of the top plate, and two fixing frames are arranged correspondingly; a hanging rod is fixedly connected to the side wall of the fixing frame, and two hanging rods are arranged correspondingly; a second spring is provided on the side wall of the hanging rod; a connecting groove is opened on the side wall of the scraper, and the connecting groove is arranged corresponding to the position of the second spring; a first screw is threadedly connected to the side wall of the scraper, and the first screw is arranged corresponding to the position of the connecting groove; through the above structure, the fixing frame, hanging rod, connecting groove, and first screw make it easy to install and remove the second spring. The use of the second spring in conjunction with the first spring helps to improve the flexibility and coating accuracy of the replaceable coating head for brightening film processing, while maintaining the advantage of easy blade replacement.
[0008] Preferably, a base plate is provided on the top of the fixing block; a connecting screw is threaded onto the side wall of the base plate, and two connecting screws are arranged correspondingly; the connecting screws are rotatably connected to the fixing block; through the above structure, the connecting screws allow the fixing block to rotate on the top of the base plate, further improving the flexibility of the replaceable coating head for brightening film processing, which is beneficial for providing convenience for the staff's component maintenance work.
[0009] Preferably, a limiting protrusion is fixedly attached to the side wall of the fixing block, and the limiting protrusion is positioned corresponding to the top plate. With the above structure, the limiting protrusion is provided on the side wall of the fixing block to position the top plate, so that the top plate impacts the side wall of the fixing block during the replacement of the scraper, which helps to improve the stability of the replaceable coating head for brightening film processing.
[0010] Preferably, a second screw is provided between the top plate and the fixing block; a third screw is provided between the fixing block and the bottom plate; through the above structure, the second screw and the third screw are provided to fix the fixing block to the top plate and the fixing block to the bottom plate, which is beneficial to improving the practicality and convenience of the replaceable coating head for brightening film processing.
[0011] Preferably, a reinforcing plate is fixed between the two fixing blocks, and the reinforcing plate is positioned corresponding to the scraper. Through the above structure, the two fixing blocks are connected by a reinforcing plate, thereby preventing the two fixing blocks from shifting and improving the stability of the replaceable coating head for brightening film processing.
[0012] Preferably, the fixing block, top plate, bottom plate, and reinforcing plate are made of mold steel. By using mold steel for the fixing block, top plate, bottom plate, and reinforcing plate, it is beneficial to extend the service life of the replaceable coating head for brightening film processing and reduce maintenance requirements.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The replaceable coating head for brightening film processing described in this utility model utilizes the rotational connection between the top plate and the fixing block to allow the top of the fixing block to be opened, thereby facilitating the replacement of the scraper by the operator. This helps to solve the problem of difficult scraper replacement in traditional scraper coating heads and improves the work efficiency of the operator.
[0015] 2. The replaceable coating head for brightening film processing described in this utility model, by setting a fixing frame, hanging rod, connecting groove and first screw, allows the second spring to be easily installed and removed. The use of the second spring in conjunction with the first spring helps to improve the flexibility and coating accuracy of the replaceable coating head for brightening film processing, while maintaining the advantage of easy blade replacement. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a schematic diagram of the top plate structure in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the fixing block in this utility model;
[0020] Figure 4 This is a schematic diagram of the scraper structure in this utility model.
[0021] In the diagram: 1. Fixing block; 11. Top plate; 12. Micrometer head; 13. Scraper; 14. Limiting block; 15. First spring; 16. Limiting rod; 17. Limiting hole; 2. Fixing frame; 21. Hanging rod; 22. Second spring; 23. Connecting groove; 24. First screw; 3. Base plate; 31. Connecting screw; 4. Limiting protrusion; 5. Second screw; 51. Third screw; 6. Reinforcing plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Specific implementation examples are given below.
[0024] like Figures 1 to 4As shown in the figure, a replaceable coating head for brightening film processing according to an embodiment of the present invention includes a fixing block 1, a top plate 11 rotatably connected to the top of the fixing block 1; a micro head 12 fixedly connected to the top of the top plate 11, and the two micro heads 12 are arranged correspondingly; a scraper 13 is provided at the bottom of the top plate 11; limit blocks 14 are fixedly connected to both ends of the scraper 13, and the two limit blocks 14 are arranged corresponding to the positions of the fixing block 1; a first spring 15 and a limit rod 16 are fixedly connected to the side wall of the fixing block 1, and the first spring 15 and the limit rod 16 are respectively arranged corresponding to the positions of the limit blocks 14; a limit hole 17 is opened on the side wall of the limit block 14; during operation, the limit block 14 with the limit hole 17 and the limit rod 16 are in a sliding connection relationship, and the operator can use the sliding connection relationship between the two to adjust the limit... Position block 14 is fixed in a predetermined position, thereby fixing the scraper 13 in the predetermined position. Whenever the scraper 13 needs to be replaced, the operator can first rotate the top plate 11, thereby moving the top plate 11 away from the top of the fixing block 1, and then remove the scraper 13 and the limiting block 14. The operator can use the micro head 12 to press the output end of the micro head 12 against the top of the scraper 13, thereby controlling the height of the scraper 13 with the cooperation of the first spring 15. Through the above structure, the rotational connection between the top plate 11 and the fixing block 1 allows the top of the fixing block 1 to be opened, thereby facilitating the replacement of the scraper 13 by the operator. This helps to solve the problem of the difficulty in replacing the scraper 13 of the traditional scraper 13 coating head and improves the work efficiency of the operator.
[0025] like Figures 1 to 4As shown, a fixing frame 2 is fixedly connected to the bottom of the top plate 11, and the two fixing frames 2 are arranged correspondingly; a hanging rod 21 is fixedly connected to the side wall of the fixing frame 2, and the two hanging rods 21 are arranged correspondingly; a second spring 22 is provided on the side wall of the hanging rod 21; a connecting groove 23 is opened on the side wall of the scraper 13, and the connecting groove 23 is arranged corresponding to the position of the second spring 22; a first screw 24 is threadedly connected to the side wall of the scraper 13, and the first screw 24 is arranged corresponding to the position of the connecting groove 23; during operation, the operator can use the threaded connection between the first screw 24 and the scraper 13 to tighten the first screw 24 onto the side wall of the scraper 13 while simultaneously letting the first screw 24 pass through one end of the second spring 22. At this time, due to the two ends of the second spring 22, the first screw 24 passes through one end of the second spring 22. The ends are respectively fixed to the hanging rod 21 and the first screw 24. Whenever the scraper 13 moves under the action of the micro head 12, the second spring 22 will be stretched and deformed. Whenever the scraper 13 needs to be replaced, the operator can first remove the first screw 24 to disconnect the connection between the fixing frame 2 and the scraper 13. The connecting groove 23 serves to accommodate the second spring 22. Through the above structure, the fixing frame 2, hanging rod 21, connecting groove 23, and first screw 24 make it easy to install and remove the second spring 22. The use of the second spring 22 in conjunction with the first spring 15 helps to improve the flexibility and coating accuracy of the replaceable coating head for brightening film processing, while maintaining the advantage of easy blade replacement.
[0026] like Figures 1 to 3 As shown, a base plate 3 is provided on the top of the fixing block 1; a connecting screw 31 is threaded onto the side wall of the base plate 3, and the two connecting screws 31 are arranged correspondingly; the connecting screw 31 is rotatably connected to the fixing block 1; during operation, the base plate 3 is located at the bottom of the film and the scraper 13 is located at the top of the film. The operator can remove the fixing block 1 from the top of the base plate 3 by removing the connecting screw 31, thereby maintaining the fixing block 1 and its adjacent components; through the above structure, the setting of the connecting screw 31 allows the fixing block 1 to rotate on the top of the base plate 3, further improving the flexibility of the replaceable coating head for brightening film processing, which is beneficial to providing convenience for the operator's component maintenance work.
[0027] like Figure 1 and Figure 3 As shown, a limiting protrusion 4 is fixedly attached to the side wall of the fixing block 1, and the limiting protrusion 4 is positioned corresponding to the top plate 11. During operation, whenever the top plate 11 rotates to a predetermined angle, the limiting protrusion 4 fixed to the side wall of the fixing block 1 will contact the side wall of the top plate 11. The limiting protrusion 4 can keep the position of the top plate 11 stable by contact. With the above structure, the limiting protrusion 4 is provided on the side wall of the fixing block 1 to position the top plate 11, so that the top plate 11 impacts the side wall of the fixing block 1 during the replacement of the scraper 13, which is beneficial to improving the stability of the replaceable coating head for brightening film processing.
[0028] like Figures 1 to 3 As shown, a second screw 5 is provided between the top plate 11 and the fixing block 1; a third screw 51 is provided between the fixing block 1 and the bottom plate 3. During operation, the operator can disconnect the connection between the top plate 11 and the fixing block 1, and disconnect the connection between the fixing block 1 and the bottom plate 3 by disassembling the second screw 5 and the third screw 51 respectively. Through the above structure, the second screw 5 and the third screw 51 are provided to fix the fixing block 1 and the top plate 11, and the fixing block 1 and the bottom plate 3, which helps to improve the practicality and convenience of the replaceable coating head for brightening film processing.
[0029] like Figure 2 As shown, a reinforcing plate 6 is fixed between the two fixed blocks 1, and the reinforcing plate 6 is positioned corresponding to the scraper 13. During operation, the position of the reinforcing plate 6 is higher than that of the scraper 13. The reinforcing plate 6 fixed between the two fixed blocks 1 can connect the two fixed blocks 1 to form a whole. Through the above structure, the reinforcing plate 6 is fixed between the two fixed blocks 1 to connect the two fixed blocks 1, thereby preventing the two fixed blocks 1 from shifting and improving the stability of the replaceable coating head for brightening film processing.
[0030] like Figures 1 to 3 As shown, the fixing block 1, top plate 11, bottom plate 3, and reinforcing plate 6 are made of mold steel. During operation, the use of mold steel in the fixing block 1, top plate 11, bottom plate 3, and reinforcing plate 6 can give full play to their advantages of high structural strength and durability. Through the above, the use of mold steel in the fixing block 1, top plate 11, bottom plate 3, and reinforcing plate 6 is beneficial to extending the service life of the replaceable coating head for brightening film processing and reducing maintenance requirements.
[0031] During operation, the limiting block 14 with the limiting hole 17 and the limiting rod 16 are in a sliding connection relationship. The operator can use this sliding connection to fix the limiting block 14 in a predetermined position, thereby fixing the scraper 13 in the predetermined position. Whenever the scraper 13 needs to be replaced, the operator can first rotate the top plate 11, thereby removing the top plate 11 from the top of the fixing block 1, and then remove the scraper 13 and the limiting block 14. The operator can use the micrometer head 12 to press the output end of the micrometer head 12 against the top of the scraper 13, thus... The height of the scraper 13 is controlled by the first spring 15. The operator can use the threaded connection between the first screw 24 and the scraper 13 to tighten the first screw 24 onto the side wall of the scraper 13 while simultaneously allowing the first screw 24 to pass through one end of the second spring 22. Since the two ends of the second spring 22 are respectively fixed to the hanging rod 21 and the first screw 24, the second spring 22 will be stretched and deformed whenever the scraper 13 moves under the action of the micrometer head 12. And whenever the scraper 13 needs to be replaced… Workers can first remove the first screw 24 to disconnect the connection between the fixing bracket 2 and the scraper 13. The connecting groove 23 serves to accommodate the second spring 22. The base plate 3 is located at the bottom of the membrane, while the scraper 13 is located at the top. Workers can remove the fixing block 1 from the top of the base plate 3 by removing the connecting screw 31, thus maintaining the fixing block 1 and its adjacent components. Whenever the top plate 11 rotates to a predetermined angle, the limiting protrusion 4 fixed to the side wall of the fixing block 1 will contact the side wall of the top plate 11. The limiting protrusion 4 can... The contact method keeps the top plate 11 in a stable position. Workers can disconnect the top plate 11 from the fixing block 1 and the fixing block 1 from the bottom plate 3 by removing the second screw 5 and the third screw 51 respectively. The position of the reinforcing plate 6 is higher than that of the scraper 13. The reinforcing plate 6, which is fixed between the two fixing blocks 1, can make the two fixing blocks 1 into a whole by connecting the two fixing blocks 1. The fixing blocks 1, top plate 11, bottom plate 3 and reinforcing plate 6 made of mold steel can give full play to their advantages of high structural strength and high durability.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A replaceable coating head for brightening film processing, comprising a fixing block (1), characterized in that: The top of the fixed block (1) is rotatably connected to a top plate (11); a micro head (12) is fixedly connected to the top of the top plate (11), and the two micro heads (12) are arranged in a corresponding manner; a scraper (13) is provided at the bottom of the top plate (11); a limit block (14) is fixedly connected to both ends of the scraper (13), and the two limit blocks (14) are arranged in a corresponding position to the fixed block (1); a first spring (15) and a limit rod (16) are fixedly connected to the side wall of the fixed block (1), and the first spring (15) and the limit rod (16) are respectively arranged in a corresponding position to the limit block (14); a limit hole (17) is opened on the side wall of the limit block (14).
2. The replaceable coating head for brightening film processing according to claim 1, characterized in that: The bottom of the top plate (11) is fixedly connected to a fixing frame (2), and the two fixing frames (2) are arranged correspondingly; a hanging rod (21) is fixedly connected to the side wall of the fixing frame (2), and the two hanging rods (21) are arranged correspondingly; a second spring (22) is provided on the side wall of the hanging rod (21); a connecting groove (23) is opened on the side wall of the scraper (13), and the connecting groove (23) is arranged corresponding to the position of the second spring (22); a first screw (24) is threadedly connected to the side wall of the scraper (13), and the first screw (24) is arranged corresponding to the position of the connecting groove (23).
3. The replaceable coating head for brightening film processing according to claim 2, characterized in that: The top of the fixing block (1) is provided with a base plate (3); the side wall of the base plate (3) is threaded with a connecting screw (31), and the two connecting screws (31) are arranged in a corresponding manner; the connecting screw (31) and the fixing block (1) are rotatably connected.
4. The replaceable coating head for brightening film processing according to claim 3, characterized in that: A limiting protrusion (4) is fixedly attached to the side wall of the fixing block (1), and the limiting protrusion (4) is positioned corresponding to the top plate (11).
5. The replaceable coating head for brightening film processing according to claim 4, characterized in that: A second screw (5) is provided between the top plate (11) and the fixing block (1); a third screw (51) is provided between the fixing block (1) and the bottom plate (3).
6. The replaceable coating head for brightening film processing according to claim 5, characterized in that: A reinforcing plate (6) is fixed between the two fixing blocks (1), and the reinforcing plate (6) is positioned corresponding to the scraper (13).
7. The replaceable coating head for brightening film processing according to claim 6, characterized in that: The fixing block (1), top plate (11), bottom plate (3), and reinforcing plate (6) are made of mold steel.