Pressure adjuster for doctor blade and glossing steel roller in glossing mechanism
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENGXING (YUNNAN) PACKAGING CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-08-07
AI Technical Summary
[0006]本实用新型的主要目的在于提供一种上光机构中的刮刀与光油钢辊的压力调整器，可以有效解决现有技术中定量不精准、调节精度不足、刮刀使用寿命短、维修成本过高的问题
该装置结构简单，使用便捷；其中的刮刀安装架可便于在刮刀、滑座、横梁任一结构磨损过大时进行快速更换，且因为现有技术中部分设备具有上刮刀和下刮刀，所以该结构还可根据具体使用环境进行适应性安装，同时也间接减少了使用成本。使用时，可将刮刀工作端先贴于钢辊，再控制调压钢管向后轻微压紧弹簧，使其形成压缩状态，如此，即使刀片磨损了也可以一直保持着刮刀与钢辊的压力，进而延长刮刀的使用寿命，进一步实现了精准定量的刮油过程，且上述简单易得的结构也减少了维修成本和增大了检修空间；调压钢管的设计可便于用户在调试时记录最优的距离调节方案，同时也提高了调节的精准度。
Smart Images
Figure CN224602511U_ABST
Abstract
Description
Technical Field
[0001] This utility model patent belongs to the field of printing and packaging technology, specifically relating to a pressure adjuster for the doctor blade and the varnish steel roller in a varnishing mechanism. Background Technology
[0002] In the printing and packaging industry, varnishing is a common surface treatment technique used to enhance the gloss, abrasion resistance, and water resistance of printed materials. The principle of varnishing is to apply a layer of transparent varnish (such as UV varnish or water-based varnish) to the surface of the printed material, which, after curing or drying, forms a smooth, hard protective film. This film not only enhances the visual appeal of the printed material but also improves its durability, making it less susceptible to damage during transportation, storage, and use.
[0003] Varnishing is widely used in the following fields: food packaging, pharmaceutical packaging, cosmetic packaging, etc. Varnishing can improve the appearance and texture of packaging, while enhancing its waterproof and moisture-proof properties. For self-adhesive labels and anti-counterfeiting labels, varnishing can improve the abrasion resistance and stain resistance of the labels.
[0004] However, traditional varnishing mechanisms suffer from the following technical problems in practical applications: Inaccurate dosing: Traditional equipment struggles to precisely control the amount of varnish applied, leading to uneven varnishing results and areas that are too thick or too thin, affecting product quality. Ink waste: Due to inaccurate dosing, excess varnish cannot be effectively recovered, resulting in resource waste and increased production costs. Insufficient adjustment precision: The steel roller adjustment mechanism of traditional equipment has low precision, failing to achieve precise control of varnishing pressure, leading to inconsistent varnishing effects. Short doctor blade lifespan: Even slight wear requires replacement of the doctor blade, resulting in a short lifespan, reduced downtime, abnormal noise, and decreased production efficiency. High maintenance costs: Current equipment uses high-precision cylinders or electric push rods to adjust the distance between the doctor blade and the steel roller. However, when the drive mechanism malfunctions, significant time is required for disassembly and repair, resulting in high maintenance and replacement costs. Furthermore, such drive mechanisms occupy considerable space for doctor blade and steel roller maintenance, complicating the repair process.
[0005] Therefore, this utility model proposes a pressure adjuster for the scraper and the varnish steel roller in the varnishing mechanism. Utility Model Content
[0006] The main purpose of this utility model is to provide a pressure adjuster for the doctor blade and the varnish steel roller in the varnishing mechanism, which can effectively solve the problems of inaccurate quantitative measurement, insufficient adjustment accuracy, short service life of doctor blade, and high maintenance cost in the prior art.
[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a pressure adjuster for the doctor blade and the varnish steel roller in a varnishing mechanism, comprising a frame, a doctor blade, a doctor blade mounting bracket, an adjusting slide rail, a steel roller, a pressure adjusting mechanism, and an oil receiving groove. An adjusting slide rail is provided on the inner front side of the frame, and a doctor blade is slidably mounted on the adjusting slide rail via the doctor blade mounting bracket. Pressure adjusting mechanisms that adjust the contact pressure and distance between the doctor blade and the steel roller are installed on the left and right sides of the frame in front of the doctor blade. The steel roller is rotatably mounted on the frame behind the doctor blade, and an oil receiving groove is installed on the lower side of the steel roller.
[0008] Preferably, the scraper mounting bracket further includes a slide block, a crossbeam, a mounting ramp, and a bolt hole structure. The slide block is slidably mounted on an adjusting slide rail. A crossbeam is mounted on the inner side of the slide block through the bolt hole structure. The crossbeam is provided with a mounting ramp on which the scraper can be mounted through the bolt hole structure.
[0009] Preferably, the pressure adjustment mechanism further includes a base, screw holes, springs, pressure regulating steel pipes, positioning holes, positioning columns, column holes, lead screws, adjusting caps, and bolt hole structures. The base is installed on the inner sides of the left and right sides of the frame through the bolt hole structures. A lead screw is rotatably installed on the base through screw holes. An adjusting cap is provided at the front end of the lead screw, and the rear end of the lead screw is connected to the front end of the pressure regulating steel pipe. The pressure regulating steel pipe is provided with a positioning hole with an opening facing the rear. A spring is inserted into the positioning hole, and the rear end of the spring is connected to the front side of the crossbeam. A column hole is provided at the front end of the positioning hole, and a positioning column is slidably inserted into the column hole. The rear end of the positioning column is connected to the front side of the crossbeam and is located within the spring.
[0010] Preferably, the pressure regulating steel pipe has a sliding groove on its side wall, and the sliding groove has graduations on both sides.
[0011] Preferably, the front end of the positioning post is detachably fitted with a pointer that extends to the outside of the slide groove.
[0012] The beneficial effects of this utility model are: This device features a simple structure and is easy to use. The scraper mounting bracket allows for quick replacement of any component—scraper, slide, or crossbeam—when it becomes excessively worn. Since some existing devices have both upper and lower scrapers, this structure can be adapted to specific operating environments, indirectly reducing operating costs. During use, the scraper's working end is first placed against the steel roller, and then the pressure regulating steel pipe is slightly pressed backward against the spring to create compression. This maintains pressure between the scraper and the steel roller even when the blade is worn, extending the scraper's lifespan and enabling precise, quantitative oil scraping. The readily available and simple structure also reduces maintenance costs and increases maintenance space. The design of the pressure regulating steel pipe allows users to record the optimal distance adjustment during debugging, while also improving adjustment accuracy. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Those skilled in the art can obtain other drawings based on these drawings without creative effort.
[0014] Figure 1 This is a structural diagram of the present invention; Figure 2 This utility model Figure 1 A partial schematic diagram of A in the middle; Figure 3 This is a front view of the present invention; Figure 4 This utility model Figure 3 A cross-sectional view of section B; Figure 5 This utility model Figure 4 A partial schematic diagram of D in the middle; Figure 6 This utility model Figure 3 A cross-sectional view of section C; The attached diagram lists the components represented by each number as follows: 1. Frame; 2. Scraper; 3. Adjusting slide rail; 4. Steel roller; 5. Oil receiving groove; 6. Slide seat; 7. Crossbeam; 8. Mounting ramp; 9. Bolt hole structure; 10. Base; 11. Screw hole; 12. Spring; 13. Pressure regulating steel pipe; 14. Positioning hole; 15. Positioning column; 16. Column hole; 17. Lead screw; 18. Adjusting cap; 19. Slide groove; 20. Scale; 21. Pointer. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Example
[0016] like Figures 1 to 6 As shown, the prior art in this embodiment has the following problems: the inventors found that the varnishing mechanism in the prior art has problems such as inaccurate quantitative measurement, insufficient adjustment precision, short service life of the scraper, and excessive maintenance cost; Therefore, the inventor provides a pressure adjuster for the scraper and the varnish steel roller in a varnishing mechanism, including a frame 1, a scraper 2, a scraper 2 mounting bracket, an adjusting slide rail 3, a steel roller 4, a pressure adjusting mechanism, and an oil receiving groove 5. An adjusting slide rail 3 is provided on the inner front side of the frame 1. The scraper 2 is slidably mounted on the adjusting slide rail 3 via the scraper 2 mounting bracket. Pressure adjusting mechanisms that can adjust the contact pressure and distance between the scraper 2 and the steel roller 4 are installed on the left and right sides of the frame 1 in front of the scraper 2. The steel roller 4 is rotatably mounted on the frame 1 behind the scraper 2, and an oil receiving groove 5 is installed on the lower side of the steel roller 4.
[0017] Its advantages are as follows: The device has a simple structure and is easy to use; the scraper 2 mounting bracket allows for quick replacement when any of the scraper 2, slide 6, or crossbeam 7 is worn excessively. Since some existing devices have both upper and lower scrapers 2, this structure can be adapted to specific usage environments, indirectly reducing operating costs. In use, the working end of the scraper 2 can be first placed against the steel roller 4, and then the pressure regulating steel pipe 13 can be slightly pressed backward against the spring 12 to create a compressed state. This ensures that even if the blade is worn, the pressure between the scraper 2 and the steel roller 4 is maintained, extending the scraper 2's service life and further achieving precise and quantitative oil scraping. The simple and readily available structure also reduces maintenance costs and increases maintenance space. The design of the pressure regulating steel pipe 13 allows users to record the optimal distance adjustment scheme during debugging, while also improving adjustment accuracy.
[0018] Furthermore, the scraper 2 mounting bracket also includes a slide block 6, a crossbeam 7, a mounting ramp 8, and a bolt hole structure 9. The slide block 6 is slidably mounted on the adjusting slide rail 3. The crossbeam 7 is mounted on the inner side of the slide block 6 through the bolt hole structure 9. The crossbeam 7 is provided with a mounting ramp 8 on which the scraper 2 can be mounted through the bolt hole structure 9. This structure is designed to facilitate quick replacement when any of the scraper 2, slide block 6, or crossbeam 7 is worn excessively. Moreover, since some existing equipment has an upper scraper 2 and a lower scraper 2, this structure can also be adapted to the specific usage environment, which also indirectly reduces the cost of use.
[0019] Furthermore, the pressure adjustment mechanism also includes a base 10, a screw hole 11, a spring 12, a pressure regulating steel pipe 13, a positioning hole 14, a positioning column 15, a column hole 16, a lead screw 17, an adjusting cap 18, and a bolt hole structure 9. The base 10 is installed on the inner side of the left and right sides of the frame 1 through the bolt hole structure 9. The lead screw 17 is rotatably installed on the base 10 through the screw hole 11. The front end of the lead screw 17 is provided with an adjusting cap 18, and the rear end of the lead screw 17 is connected to the front end of the pressure regulating steel pipe 13. The pressure regulating steel pipe 13 is provided with a positioning hole 14 with an opening facing the rear side. The spring 12 is inserted into the positioning hole 14, and the rear end of the spring 12 is connected to the front side of the crossbeam 7. The front end of the positioning hole 14 is provided with a column hole 16, and the positioning column 15 is slidably inserted into the column hole 16. The rear end of the positioning column 15 is connected to the front side of the crossbeam 7 and is located in the spring 12. This structure allows the adjusting screw 17 to be rotated via the adjusting cap 18 at the front end of the screw 17, thereby adjusting the pressure regulating steel pipe 13 back and forth. During the adjustment process, the positioning pin 15 inserted into the pin hole 16 ensures that the pressure regulating steel pipe 13 can move back and forth stably, thus transmitting force to the spring 12 during the movement. After the spring 12 partially dissipates the force, the remaining force is transmitted to the crossbeam 7, thereby controlling the back and forth movement of the crossbeam 7 and the scraper 2 on it. In use, the working end of the scraper 2 can be first placed against the steel roller 4, and then the pressure regulating steel pipe 13 can be controlled to slightly press the spring 12 backward to compress it. In this way, even if the blade is worn, the pressure between the scraper 2 and the steel roller 4 can be maintained, thereby extending the service life of the scraper 2 and further realizing the precise and quantitative oil scraping process. Moreover, the above simple and readily available structure also reduces maintenance costs and increases maintenance space.
[0020] Furthermore, the side wall of the pressure regulating steel pipe 13 is provided with a sliding groove 19, and the sliding groove 19 is provided with scales 20 on both sides; the design of this structure makes it convenient for users to record the optimal distance adjustment scheme during debugging, and also improves the accuracy of adjustment.
[0021] Furthermore, the front end of the positioning post 15 is detachably fitted with a pointer 21 that extends to the outside of the slide groove 19; this structure is designed to facilitate quick assembly and disassembly by the user.
[0022] The working principle of this utility model: In use, the working end of the scraper 2 can be first attached to the steel roller 4, and then the pressure regulating steel pipe 13 can be controlled to slightly press the spring 12 backward to compress it. In this way, even if the blade is worn, the pressure between the scraper 2 and the steel roller 4 can be maintained, thereby extending the service life of the scraper 2 and further realizing a precise and quantitative oil scraping process. Moreover, the simple and readily available structure also reduces maintenance costs and increases maintenance space. The design of the pressure regulating steel pipe 13 makes it easy for users to record the optimal distance adjustment scheme during debugging, and also improves the accuracy of adjustment.
[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A pressure adjuster for the doctor blade and the varnish steel roller in a varnishing mechanism, comprising a frame, a doctor blade, a doctor blade mounting bracket, an adjusting slide rail, a steel roller, a pressure adjusting mechanism, and an oil receiving groove, characterized in that: An adjusting slide rail is provided on the inner front side of the frame. A scraper is slidably mounted on the adjusting slide rail via a scraper mounting bracket. Pressure adjustment mechanisms that adjust the contact pressure and distance between the scraper and the steel roller are installed on the left and right sides of the frame in front of the scraper. The steel roller is rotatably mounted on the frame behind the scraper, and an oil receiving groove is installed on the lower side of the steel roller.
2. The pressure adjuster for the doctor blade and the varnish steel roller in a varnishing mechanism according to claim 1, characterized in that: The scraper mounting bracket also includes a slide block, a crossbeam, a mounting ramp, and a bolt hole structure. The slide block is slidably mounted on an adjusting slide rail. A crossbeam is mounted on the inner side of the slide block through the bolt hole structure. The crossbeam is provided with a mounting ramp on which the scraper can be mounted through the bolt hole structure.
3. The pressure adjuster for the doctor blade and the varnish steel roller in a varnishing mechanism according to claim 1, characterized in that: The pressure adjustment mechanism further includes a base, screw holes, springs, pressure regulating steel pipes, positioning holes, positioning columns, column holes, lead screws, adjusting caps, and bolt hole structures. The base is installed on the inner sides of the left and right sides of the frame through the bolt hole structures. A lead screw is rotatably installed on the base through screw holes. An adjusting cap is provided at the front end of the lead screw, and the rear end of the lead screw is connected to the front end of the pressure regulating steel pipe. The pressure regulating steel pipe is provided with a positioning hole with an opening facing the rear. A spring is inserted into the positioning hole, and the rear end of the spring is connected to the front side of the crossbeam. A column hole is provided at the front end of the positioning hole, and a positioning column is slidably inserted into the column hole. The rear end of the positioning column is connected to the front side of the crossbeam and is located within the spring.
4. The pressure adjuster for the doctor blade and the varnish steel roller in a varnishing mechanism according to claim 3, characterized in that: The pressure regulating steel pipe is provided with a sliding groove on its side wall, and the sliding groove is provided with graduations on both sides.
5. The pressure adjuster for the doctor blade and the varnish steel roller in a varnishing mechanism according to claim 3, characterized in that: The positioning post is detachably fitted with a pointer that extends to the outside of the slide groove.