Reverse extraction rubber band scraping lip

Abstract

The utility model relates to the technical field of reverse extraction rubber bands, in particular to a reverse extraction rubber band scraping lip, which comprises an upper lip piece and a lower lip piece, and is characterized in that a flow deflector is arranged between the upper lip piece and the lower lip piece, a plurality of flow guide grooves are arranged on one side of the flow deflector, and a rubber chamber is arranged on the upper lip piece. A plurality of glue outlet scraping grooves matched with the flow guide grooves in structure are formed in the upper lip piece, and the glue chamber is communicated with the glue outlet scraping grooves through the flow guide grooves; the flow deflectors are innovatively arranged, the flow guide grooves are formed in the flow deflectors, the effective glue outlet quantity of the glue outlet scraping grooves can be flexibly controlled, in the actual use process, only the flow deflectors of different specifications need to be simply replaced, the flow deflectors of different specifications need to be replaced, and the flow deflectors of different specifications are replaced. Any number of glue outlet scraping grooves can be easily controlled to play a role, and the flexibility and adaptability of the lip scraping device are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of reverse-pulling rubber band lip scraping technology, and in particular to a reverse-pulling rubber band lip scraping method. Background Technology

[0002] The reverse-pull rubber band scraper is a key device used in the adhesive coating process of industrial production. Its main function is to provide a hot melt adhesive spraying process to coat a certain substrate material with molten adhesive.

[0003] In existing lip scraping technologies, traditional lip scraping devices are typically equipped with a fixed number of adhesive dispensing grooves. This fixed configuration severely limits flexibility in practical applications. Different production processes or product requirements sometimes necessitate applying adhesive to varying amounts of substrate material. However, traditional lip scraping devices, with their fixed number of dispensing grooves that cannot be flexibly adjusted, struggle to meet diverse adhesive application needs. Changing the number or distribution of dispensing grooves often requires replacing the entire lip scraping device, which is not only costly but also time-consuming. This project aims to develop a reverse-pull elastic band lip scraper to solve this problem. Utility Model Content

[0004] In view of at least one of the above technical problems, the present invention provides a reverse-pull rubber band scraper lip, which solves the problem by adopting the following technical solution.

[0005] According to one aspect of the present invention, a reverse-pull rubber band scraper lip is provided, comprising an upper lip and a lower lip, characterized in that a guide plate is provided between the upper lip and the lower lip, a plurality of guide grooves are provided on one side of the guide plate, a glue chamber is provided on the upper lip, and a plurality of glue dispensing scraper grooves matching the structure of the guide grooves are provided on the upper lip, and the glue chamber and the plurality of glue dispensing scraper grooves are connected through the guide grooves.

[0006] The guide vane is detachably connected to both the upper and lower lip plates.

[0007] The above solution allows for the operation of different numbers of glue dispensing grooves without replacing the entire lip scraping device, saving costs and improving efficiency.

[0008] The present application further provides that the upper lip has a glue inlet channel in the middle, one end of the glue inlet channel is connected to the glue chamber, and the other end of the glue inlet channel extends to one end face of the upper lip.

[0009] The above solution enables rapid glue replenishment and pressure balance, making it suitable for continuous operation scenarios and avoiding coating interruptions due to insufficient glue.

[0010] The present application is further configured such that a positioning post is provided on one side of the upper lip, and a first positioning hole and a second positioning hole adapted to the positioning post are respectively provided on the guide plate and the lower lip, with the positioning post passing through the first positioning hole and the second positioning hole.

[0011] The above solution can effectively ensure rapid alignment during the installation of the guide plate and its stability after installation, ensuring that the guide plate and the glue dispensing groove always maintain high-precision alignment and avoiding glue leakage or blockage caused by misalignment.

[0012] This application further provides that the lower lip has an air intake channel in the middle, and the guide vane has an air intake hole in the middle that matches the air intake channel.

[0013] The above method enables the adhesive to be stably sprayed out in a hot melt during the coating process.

[0014] This application further specifies that the number of guide grooves on the guide plate is equal to the number of glue discharge grooves on the upper lip plate.

[0015] The above solution can achieve full-volume dispensing mode, which is suitable for uniform coating of full quantity and can evenly distribute the glue in the glue chamber to each dispensing groove.

[0016] This application further specifies that a plurality of baffles are provided on one side of the guide plate, the guide groove is formed between the baffles, and the baffles are staggered from the glue discharge groove.

[0017] The above solution can meet the requirements of the full-volume glue dispensing mode.

[0018] This application is further configured such that the number of guide grooves on the guide plate is less than the number of glue discharge grooves on the upper lip plate.

[0019] The above solution allows for arbitrary switching between full glue dispensing and partial glue dispensing, breaking through the limitations of the traditional fixed glue dispensing mode.

[0020] This application further provides that a baffle is provided between the guide grooves on the guide plate, and the baffle can be used to block the glue discharge groove.

[0021] The above solution enables selective dispensing of adhesive.

[0022] This utility model has the following technical effects:

[0023] This invention innovatively incorporates a guide plate between the upper and lower lip plates, forming a three-piece structure. The guide plate features a guide groove, allowing for flexible control of the effective amount of adhesive dispensed from the adhesive dispensing grooves. Specifically, the guide plate can selectively block part of the adhesive dispensing grooves or leave them unblocked. In practical use, compared to the traditional two-piece structure, this invention only requires simple replacement of guide plates of different specifications to easily control any number of adhesive dispensing grooves. This innovative design greatly enhances the flexibility and adaptability of the lip scraping device. By simply replacing the guide plate—a low-cost, high-efficiency method—various production process requirements can be quickly met, effectively reducing production costs and improving production efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a perspective view of the present invention;

[0026] Figure 2 This is a schematic diagram of the split structure of this utility model;

[0027] Figure 3 This is another three-dimensional representation of the present invention. Figure 1 ;

[0028] Figure 4 This is another three-dimensional representation of the present invention. Figure 2 ;

[0029] Figure 5 This is a three-dimensional view of the upper lip piece of this utility model;

[0030] Figure 6 This is a three-dimensional view of another upper lip piece of this utility model.

[0031] Figure label:

[0032] 1. Upper lip; 11. Glue discharge groove; 12. Positioning post; 13. Glue inlet channel; 14. Glue chamber; 2. Guide plate; 21. First positioning hole; 22. Air inlet; 23. Baffle; 24. Guide groove; 3. Lower lip; 31. Air inlet channel; 32. Second positioning hole. Detailed Implementation

[0033] Please see Figures 1 to 6It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and objectives of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the technical terms used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0034] First, let me explain the design intention of this invention: In existing lip scraping technology, traditional lip scraping devices are usually equipped with a fixed number of glue dispensing grooves. This fixed configuration severely limits the flexibility in actual application. In different production processes or product demand scenarios, it is sometimes necessary to apply glue to different amounts of substrate materials.

[0035] Traditional scraper lip systems, due to their fixed and inflexible number of adhesive dispensing grooves, struggle to meet diverse adhesive application needs. Changing the number or distribution of these grooves often requires replacing the entire scraper lip unit, which is not only costly but also time-consuming. This project aims to develop a reverse-pulling elastic scraper lip to solve these problems.

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this application. Example 1

[0037] In this embodiment of the application, as Figures 1-6 As shown, a reverse-pull rubber band scraper lip is provided, including an upper lip piece 1 and a lower lip piece 3. The characteristic is that a guide plate 2 is provided between the upper lip piece 1 and the lower lip piece 3, and a plurality of guide grooves 24 are provided on one side of the guide plate 2. A glue chamber 14 is provided on the upper lip piece 1, and a plurality of glue dispensing scraper grooves 11 that match the structure of the guide grooves 24 are provided on the upper lip piece 1. The glue chamber 14 and the plurality of glue dispensing scraper grooves 11 are connected through the guide grooves 24.

[0038] The guide vane 2 is detachably connected to the upper lip 1 and the lower lip 3.

[0039] One end of the guide channel 24 corresponds to the glue dispensing squeegee 11, and the other end extends to the glue chamber 14. When the guide plate 2 is clamped between the upper lip plate 1 and the lower lip plate 3, the upper and lower parts of the guide channel 24 are also closed, forming a channel. Glue can enter the glue dispensing squeegee 11 from the glue chamber 14 through the guide channel 24. The guide channel 24 can be set in different numbers. The guide channel 24 can be set in the same number as the glue dispensing squeegee 11, or a smaller number. For example, 100 glue dispensing squeegees 11 and 50 guide channels 24 are used together, so that 50 glue dispensing squeegees 11 are connected to the glue chamber 14, enabling glue application. The upper lip plate 1, the lower lip plate 3 and the guide plate 2 form a modular structure that can be detachably connected, making it easy to replace the guide plate 2 and meeting diverse glue application needs. There is no need to replace the entire lip scraping device, saving costs and improving efficiency.

[0040] In order to achieve rapid glue supply, a glue inlet channel 13 is provided in the middle of the upper lip piece 1. One end of the glue inlet channel 13 is connected to the glue chamber 14, and the other end of the glue inlet channel 13 extends to one end face of the upper lip piece 1.

[0041] The straight-through design of the glue inlet channel 13 allows for direct connection between the external glue source and the glue chamber 14, enabling rapid glue replenishment and pressure balance. This is suitable for continuous operation scenarios and avoids coating interruptions caused by insufficient glue.

[0042] In order to improve the positioning accuracy of the guide vane 2 after installation and improve the replacement and installation efficiency, a positioning post 12 is provided on one side of the upper lip 1. The guide vane 2 and the lower lip 3 are respectively provided with a first positioning hole 21 and a second positioning hole 32 adapted to the positioning post 12. The positioning post 12 passes through the first positioning hole 21 and the second positioning hole 32.

[0043] The positioning post 12, together with the first positioning hole 21 and the second positioning hole 32, forms a stable positioning structure. This design can effectively ensure the rapid alignment of the guide plate 2 during installation and its stability after installation, ensuring that the guide plate 2 and the glue discharge groove 11 always maintain high-precision alignment, and avoiding glue leakage or blockage caused by misalignment.

[0044] In order to keep the glue in a hot melt state during the spraying process, an air inlet channel 31 is provided in the middle of the lower lip 3, and an air inlet hole 22 adapted to the air inlet channel 31 is provided in the middle of the guide plate 2.

[0045] The corresponding design of the air inlet channel 31 and the air inlet hole 22 provides a hot air inlet for the system. By introducing hot air into the channel, the adhesive can be stably hot-melted and sprayed out during the coating process.

[0046] To ensure full glue dispensing, the number of guide grooves 24 on the guide plate 2 is equal to the number of glue dispensing scraper grooves 11 on the upper lip plate 1.

[0047] By connecting the glue chamber 14 with the glue dispensing trough 11, and with an equal number of guide grooves 24 on the guide plate 2, a full-volume glue dispensing mode can be achieved. This configuration is suitable for the working condition of uniform coating of full quantity. It can evenly distribute the glue in the glue chamber 14 to each glue dispensing trough 11. Through the precise matching of the guide plate and the trough, it ensures that the glue is stably output along the preset path.

[0048] To accommodate the full dispensing mode, several baffles 23 are provided on one side of the guide plate 2, and the guide groove 24 is formed between the baffles 23. The baffles 23 are staggered from the dispensing groove 11.

[0049] By staggering the baffle 23 with the glue dispensing groove 11, the full-volume glue dispensing mode can be met. Example 2

[0050] In this embodiment of the application, as Figures 1-6 As shown, a reverse-pull rubber band scraper lip is provided, including an upper lip piece 1 and a lower lip piece 3. The characteristic is that a guide plate 2 is provided between the upper lip piece 1 and the lower lip piece 3, and a plurality of guide grooves 24 are provided on one side of the guide plate 2. A glue chamber 14 is provided on the upper lip piece 1, and a plurality of glue dispensing scraper grooves 11 that match the structure of the guide grooves 24 are provided on the upper lip piece 1. The glue chamber 14 and the plurality of glue dispensing scraper grooves 11 are connected through the guide grooves 24.

[0051] The guide vane 2 is detachably connected to the upper lip 1 and the lower lip 3.

[0052] In order to achieve adhesive application to a smaller number of substrates, the number of guide grooves 24 on the guide plate 2 is less than the number of adhesive discharge grooves 11 on the upper lip plate 1.

[0053] The design employs an asymmetrical approach, where the number of guide channels 24 is less than that of the glue dispensing grooves 11. By replacing different guide plates 2, it is possible to switch arbitrarily between full glue dispensing and partial glue dispensing, breaking through the limitations of the traditional fixed glue dispensing mode of scraping lips.

[0054] To facilitate localized glue dispensing, baffles 23 are provided between the guide grooves 24 on the guide plate 2. The baffles 23 can be used to block the glue dispensing scraper groove 11.

[0055] The baffle 23, in conjunction with the guide channel 24, enables selective dispensing of adhesive.

[0056] Working principle: The glue inlet channel 13 connects to an external glue source. Glue enters the glue chamber 14 from the glue inlet channel 13. Since one end of the guide groove 24 corresponds to the glue outlet scraper 11, and the other end extends to the glue chamber 14, and the guide plate 2 is clamped between the upper lip plate 1 and the lower lip plate 3, the upper and lower parts of the guide groove 24 are also sealed, forming a channel. Therefore, the glue can enter the glue outlet scraper 11 from the glue chamber 14 through the guide groove 24. The innovative feature of this invention is that the guide plate 2 is replaceable. By replacing it with different numbers of guide plates... The guide vanes 2 of the flow channel 24 can achieve full-volume dispensing mode, which is suitable for uniform coating of full quantity. They can evenly distribute the glue in the glue chamber 14 to each dispensing groove 11. Alternatively, an asymmetrical design can be adopted, with fewer guide vanes 24 than dispensing grooves 11. By changing different guide vanes 2, it is possible to switch arbitrarily between full dispensing and partial dispensing, breaking through the limitations of the traditional fixed dispensing mode of the scraper lip. This can meet diverse coating needs without replacing the entire scraper lip device, saving costs and improving efficiency.

[0057] The above are merely preferred embodiments of this application and do not constitute any limitation on this application. Any person skilled in the art can make many possible variations and modifications to the technical solution of this application, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this application. Therefore, all equivalent changes made based on the shape, structure, and principle of this application without departing from the content of the technical solution of this application should be covered within the protection scope of this application.

Claims

1. A type of reverse-pulling elastic band scraper lip, characterized in that, It includes an upper lip (1) and a lower lip (3), with a guide plate (2) provided between the upper lip (1) and the lower lip (3). A plurality of guide grooves (24) are provided on one side of the guide plate (2). A glue chamber (14) is provided on the upper lip (1), and a plurality of glue discharge scraping grooves (11) matching the structure of the guide grooves (24) are provided on the upper lip (1). The glue chamber (14) and the plurality of glue discharge scraping grooves (11) are connected through the guide grooves (24). The guide plate (2) is detachably connected to the upper lip plate (1) and the lower lip plate (3).

2. The reverse-pull rubber band scraper lip according to claim 1, characterized in that: The upper lip (1) is provided with a glue inlet channel (13) in the middle. One end of the glue inlet channel (13) is connected to the glue chamber (14), and the other end of the glue inlet channel (13) extends to one end face of the upper lip (1).

3. The reverse-pull rubber band scraper lip according to claim 1, characterized in that: A positioning post (12) is provided on one side of the upper lip (1), and a first positioning hole (21) and a second positioning hole (32) adapted to the positioning post (12) are respectively provided on the guide plate (2) and the lower lip (3). The positioning post (12) passes through the first positioning hole (21) and the second positioning hole (32).

4. The reverse-pull rubber band scraper lip according to claim 1, characterized in that: The lower lip (3) has an air intake channel (31) in the middle, and the guide plate (2) has an air intake hole (22) that is compatible with the air intake channel (31) in the middle.

5. The reverse-pull rubber band scraper lip according to claim 1, characterized in that: The number of guide grooves (24) on the guide plate (2) is equal to the number of glue discharge grooves (11) on the upper lip plate (1).

6. The reverse-pull rubber band scraper lip according to claim 5, characterized in that: A plurality of baffles (23) are provided on one side of the guide plate (2), and the guide groove (24) is formed between the baffles (23). The baffles (23) are staggered from the glue discharge groove (11).

7. The reverse-pull rubber band scraper lip according to claim 1, characterized in that: The number of guide grooves (24) on the guide plate (2) is less than the number of glue discharge grooves (11) on the upper lip plate (1).

8. The reverse-pull rubber band scraper lip according to claim 7, characterized in that: A baffle (23) is provided between the guide grooves (24) on the guide plate (2), and the baffle (23) can be used to block the glue dispensing groove (11).

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