Novel doctor blade with PU (polyurethane) blade

Abstract

The utility model relates to a novel PU blade doctor blade which comprises a doctor blade holder and a PU blade installed on the front side of the upper end of the doctor blade holder, and a first protruding part protruding outwards is arranged on the rear side of the doctor blade holder. Through the arrangement of the first protruding part, when doctor blade products are stacked, a certain gap is formed between the blades, direct and tight attachment of rubber sheets is avoided, and the possibility of adhesion of the rubber sheets is remarkably reduced. Through the structural improvement, it can be ensured that doctor blade products can be smoothly fed to equipment in the automatic production process of customers, equipment failures and production interruption caused by adhesion are reduced, and the production efficiency and the production stability are greatly improved. And meanwhile, the film adhesion is avoided, the quality of the doctor blade product is guaranteed, the situation that the product is damaged due to adhesion is reduced, the production cost is reduced, and the competitiveness of the product in the market is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of printer accessories technology, and in particular to a novel PU blade for dispensing toner. Background Technology

[0002] In existing technologies, PU (polyurethane) powder dispensing blades are widely used as important industrial components. Traditional PU powder dispensing blades typically consist of a dispensing blade holder and a PU blade mounted on one side of the holder. During the production, transportation, and use of these blades, they are often stacked together for easy storage and transport. However, when customers apply these blades to automated production equipment, the tightly stacked blades cause adhesion between the blade sheets. This adhesion problem severely impacts the smoothness of automated production processes, leading to reduced production efficiency, increased equipment malfunctions, and potentially affecting the final product quality. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the problems existing in the existing related technologies. To this end, the present invention proposes a novel PU blade powder dispensing knife.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A novel PU blade powder dispensing knife includes a powder dispensing knife holder and a PU blade mounted on the front side of the upper end of the powder dispensing knife holder, with a first protruding part protruding outward on the rear side of the powder dispensing knife holder.

[0006] In some embodiments, the powder dispensing blade holder includes a blade holder plate in the shape of a strip-shaped flat plate, a blade connecting plate connected to the upper end of the blade holder plate, and a support plate connected to the lower end of the blade holder plate. The PU blade is mounted on the front side of the blade connecting plate, and the first protrusion is located on the rear side of the blade holder plate.

[0007] In some embodiments, the blade connecting plate is integrally formed with the tool holder plate, and the blade connecting plate is offset rearward relative to the tool holder plate.

[0008] In some embodiments, the support plate is bent forward and integrally formed with the blade holder plate.

[0009] In some embodiments, the PU blade is attached to the front side of the blade connecting plate by adhesive.

[0010] In some embodiments, the first protrusion is two first protrusions spaced apart on the rear side of the tool holder plate, and the two first protrusions are spaced apart along the length direction of the tool holder plate.

[0011] In some embodiments, the first protrusion is integrally formed with the tool holder plate by stamping.

[0012] In some embodiments, mounting holes are provided on the tool holder plate.

[0013] In some embodiments, a second protrusion is provided on the rear side of the blade connecting plate.

[0014] In some embodiments, the second protrusion is two second protrusions spaced apart on the rear side of the blade connecting plate, and the two second protrusions are spaced apart along the length direction of the blade connecting plate.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: The first protrusion creates a gap between the blades when the powder dispensing blades are stacked, preventing the film from being directly and tightly bonded and significantly reducing the possibility of film adhesion. This structural improvement ensures that the powder dispensing blades can be smoothly fed into the equipment during automated production, reducing equipment failures and production interruptions caused by adhesion, and greatly improving production efficiency and stability. Simultaneously, preventing film adhesion also helps ensure the quality of the powder dispensing blades, reducing product damage due to adhesion, lowering production costs, and enhancing the product's competitiveness in the market. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0017] Figure 1 This is one of the three-dimensional schematic diagrams of the PU blade powder dispensing knife of this utility model;

[0018] Figure 2 This is the second three-dimensional schematic diagram of the PU blade powder dispensing knife of this utility model;

[0019] Figure 3 This is a side view of the PU blade powder dispensing knife of this utility model;

[0020] Figure 4 This is a side view of the two PU blade powder-discharging blades of this utility model when stacked. Detailed Implementation

[0021] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0022] like Figures 1-4 The novel PU blade powder dispensing knife shown includes a powder dispensing knife holder 1 and a PU blade 2 installed on the front side of the upper end of the powder dispensing knife holder 1. A first protrusion 3 protruding outward is provided on the rear side of the powder dispensing knife holder 1.

[0023] In actual manufacturing, the powder dispensing blade holder 1 is first processed, which is the basic component. The PU blade 2 is installed on the front side of the upper end of the powder dispensing blade holder 1. At the same time, on the rear side of the powder dispensing blade holder 1, a first protruding part 3 is set outward through appropriate processes such as stamping to ensure the stable connection and reasonable layout of the powder dispensing blade holder 1, the PU blade 2, and the first protruding part 3.

[0024] By setting a first protrusion 3 on the rear side of the powder dispensing blade holder 1, gaps are formed between the blades when the powder dispensing blades are stacked, effectively preventing the PU blades 2 from sticking together, ensuring the smooth operation of customers' automated production, and improving production efficiency and stability.

[0025] Specifically, the powder dispensing blade holder 1 includes a blade holder plate 21 in the shape of a strip-shaped flat plate, a blade connecting plate 22 connected to the upper end of the blade holder plate 21, and a support plate 23 connected to the lower end of the blade holder plate 21. The PU blade 2 is installed on the front side of the blade connecting plate 22, and the first protrusion 3 is located on the rear side of the blade holder plate 21.

[0026] Furthermore, the blade connecting plate 22 is integrally formed with the blade holder plate 21, and the blade connecting plate 22 is offset backward relative to the blade holder plate 21; the integral forming ensures the connection strength between the blade connecting plate 22 and the blade holder plate 21 and reduces weak points in the connection part; the backward offset setting optimizes the overall structural layout of the powder discharge blade, provides better space conditions for the installation and use of PU blade 2, and may also indirectly assist the first protrusion 3 to play a better role.

[0027] Furthermore, the support plate 23 is bent forward and integrally formed with the knife holder plate 21, which enhances the bottom support strength of the powder dispensing knife holder 1, making the entire powder dispensing knife more stable during use and less prone to deformation, thus helping to improve the service life of the product.

[0028] The PU blade 2 is attached to the front side of the blade connecting plate 22 with adhesive. When installing the PU blade 2, select a suitable adhesive, apply it evenly to the front side of the blade connecting plate 22, then accurately place and press the PU blade 2, wait for the adhesive to cure, and ensure that the PU blade 2 is firmly attached to the blade connecting plate 22.

[0029] The PU blade 2 is attached with adhesive, making installation simple and convenient, facilitating production operations and reducing installation costs.

[0030] See Figure 2 As shown, the first protrusion 3 consists of two first protrusions 61 spaced apart on the rear side of the tool holder plate 21. The two first protrusions 61 are spaced apart along the length of the tool holder plate 21. The protrusion height of the first protrusion 61 is 0.1-0.3mm, preferably 0.2mm.

[0031] By using a stamping process, two first protrusions 61 are punched out at appropriate intervals in suitable positions. The spacing between the two first protrusions 61 along the length of the tool holder plate 21 is strictly controlled to ensure that the shape and size of the protrusions meet the design requirements.

[0032] The first protrusion 61 is integrally formed with the tool holder plate 21 by stamping, which enhances the connection strength between the first protrusion 61 and the tool holder plate 21, making the first protrusion 61 less likely to fall off during use; at the same time, it reduces processing steps, improves production efficiency, and reduces production complexity and cost.

[0033] In this utility model, mounting holes 81 are provided on the tool holder plate 21. According to the installation requirements, the mounting holes are punched out at appropriate positions on the tool holder plate 21 using a stamping device. The hole diameter and positional accuracy of the mounting holes are controlled to meet the requirements for subsequent installation and connection with other components.

[0034] In this invention, a second protrusion 9 is provided on the rear side of the blade connecting plate 22. This second protrusion 9 further increases the gap when the powder-discharging blades are stacked, providing double protection to prevent the PU blades 2 from sticking together (e.g., ...). Figure 4 (As shown).

[0035] Furthermore, the second protrusion 9 consists of two second protrusions 91 spaced apart on the rear side of the blade connecting plate 22, with the two second protrusions 91 spaced apart along the length of the blade connecting plate 22; on the rear side of the blade connecting plate 22, two second protrusions 91 are punched out at intervals by a stamping process, and the spacing between the two second protrusions 91 along the length of the blade connecting plate is precisely controlled to ensure that the size and shape of the protrusions meet the design standards.

[0036] The second protrusion 9 is configured as two spaced second protrusions 91, which correspond to the structure of the first protrusion 61 of the first protrusion 3. This ensures that the stacking gap is increased and adhesion is prevented, while maintaining the simplicity of the structure and ease of processing. It also reduces material consumption, lowers costs, and does not significantly affect the original function and strength of the blade connecting plate 22.

[0037] Based on the accompanying drawings and the foregoing display and description of 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel PU blade powder dispensing knife, comprising a powder dispensing knife holder (1) and a PU blade (2) mounted on the upper front side of the powder dispensing knife holder (1), characterized in that: A first protrusion (3) protruding outward is provided on the rear side of the powder dispensing knife holder (1). The powder dispensing knife holder (1) includes a knife holder plate (21) in the shape of a strip flat plate, a blade connecting plate (22) connected to the upper end of the knife holder plate (21), and a support plate (23) connected to the lower end of the knife holder plate (21). The PU blade (2) is installed on the front side of the blade connecting plate (22), and the first protrusion (3) is provided on the rear side of the knife holder plate (21).

2. The novel PU blade powder dispensing knife according to claim 1, characterized in that: The blade connecting plate (22) is integrally formed with the blade holder plate (21), and the blade connecting plate (22) is offset rearward relative to the blade holder plate (21).

3. The novel PU blade powder dispensing knife according to claim 1, characterized in that: The support plate (23) bends forward and is integrally formed with the blade holder plate (21).

4. A novel PU blade powder dispensing knife according to claim 1, characterized in that: The PU blade (2) is attached to the front side of the blade connecting plate (22) by adhesive.

5. A novel PU blade powder dispensing knife according to claim 1, characterized in that: The first protrusion (3) consists of two first protrusions (61) spaced apart on the rear side of the tool holder plate (21), with the two first protrusions (61) spaced apart along the length direction of the tool holder plate (21).

6. A novel PU blade powder dispensing knife according to claim 5, characterized in that: The first protrusion (61) is integrally formed with the tool holder plate (21) by stamping.

7. A novel PU blade powder dispensing knife according to claim 1, characterized in that: Mounting holes (81) are provided on the tool holder plate (21).

8. A novel PU blade powder dispensing knife according to any one of claims 2-7, characterized in that: A second protrusion (9) is provided on the rear side of the blade connecting plate (22).

9. A novel PU blade powder dispensing knife according to claim 8, characterized in that: The second protrusion (9) consists of two second protrusions (91) spaced apart on the rear side of the blade connecting plate (22), with the two second protrusions (91) spaced apart along the length of the blade connecting plate (22).

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