A surface treatment device for developer particles

Abstract

The utility model discloses a kind of surface treatment devices of developer particles, comprising: flatly placed feed pipe, the feed inlet of being dividedly arranged in the both ends of feed pipe, discharge port, the air inlet being opened on feed pipe and being close to feed inlet, the air outlet being opened on feed pipe and being close to discharge port, hot air supply device connected with air inlet by air inlet pipe, second filter being located at air outlet, and ultrasonic vibration plate laid on the inner wall of feed pipe.The surface treatment device of developer particles of the utility model can improve the shape of developer particles, make developer particles more round, and further improve the flowability of developer particles and the sharp end discharge phenomenon of developer particles.

Description

Technical Field

[0001] This utility model relates to a surface treatment device for developer particles. Background Technology

[0002] The developer in a printer is a particulate substance used to transfer electrical charge during the electrostatic copying process. Due to limitations in the pulverization process, developers produced using existing physical pulverization techniques often have developer particles of varying shapes and sharp points. This can lead to poor color density maintenance and decreased print quality in later stages of printing. This is because during continuous printing, the developer particle tips discharge, and the less rounded shape of the particles results in poor flowability, causing further frictional discharge and ultimately insufficient charge accumulation in later stages. Therefore, surface treatment of the developer particles is necessary to improve their shape and reduce tip discharge. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a surface treatment device for developer particles, comprising: a horizontally placed conveying pipe, an inlet and an outlet respectively disposed at both ends of the conveying pipe, an air inlet disposed on the conveying pipe and near the inlet, an air outlet disposed on the conveying pipe and near the outlet, a hot air supply device connected to the air inlet via the air inlet pipe, a second filter disposed at the air outlet, and an ultrasonic vibrating plate laid on the inner wall of the conveying pipe.

[0004] Preferably, the feed inlet is located on the top wall of the feed pipe.

[0005] Preferably, the discharge port is located on the bottom wall of the conveying pipe.

[0006] Preferably, the air inlet is located on the top wall of the material conveying pipe.

[0007] Preferably, the air outlet is located on the top wall of the material conveying pipe.

[0008] Preferably, the ultrasonic vibrating plate is laid on the bottom wall of the conveying pipe, and the ultrasonic vibrating plate extends from one end of the bottom wall of the conveying pipe near the inlet to the other end near the outlet.

[0009] Preferably, it also includes: a feed hopper connected to the feed inlet.

[0010] Preferably, it also includes a first filter located at the air inlet.

[0011] Preferably, both the first filter and the second filter have built-in filter bags and are bag filters.

[0012] Preferably, the filter bag has a mesh size of not less than 200 mesh.

[0013] The advantages and beneficial effects of this utility model are as follows: It provides a surface treatment device for developer particles, which can improve the shape of developer particles (make the developer particles more rounded), thereby improving the fluidity of developer particles and improving the tip discharge phenomenon of developer particles.

[0014] As the developer particles flow from left to right in the feed tube, they are heated and softened by hot air. During the softening process, the developer particles tend to become rounder, and the shape of the developer particles discharged from the outlet is improved (the discharged developer particles will be more rounded).

[0015] Furthermore, as the developer particles flow from left to right, the ultrasonic vibrating plate laid on the bottom wall of the feed pipe works continuously (frequency 5-200KHZ), which can break up the developer particles that agglomerate after heating, thus preventing the discharge of agglomerated developer particles. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0018] The specific technical solution of this utility model is as follows:

[0019] like Figure 1 As shown, this utility model provides a surface treatment device for developer particles, including: a conveying pipe 1 placed horizontally in the left-right direction, an inlet 11 opened at the left end of the top wall of the conveying pipe 1, a feed hopper 2 connected to the inlet 11, an air inlet 12 opened at the top wall of the conveying pipe 1 and close to the inlet 11, a first filter 31 with its input end connected to the air inlet 12, a hot air supply device (not shown in the figure) connected to the output end of the first filter 31 through an air inlet pipe, an outlet 13 opened at the right end of the bottom wall of the conveying pipe 1, an air outlet 14 opened at the top wall of the conveying pipe 1 and close to the outlet 13, a second filter 32 with its input end connected to the air outlet 14, and an ultrasonic vibrating plate 4 laid on the inner bottom wall of the conveying pipe 1.

[0020] The ultrasonic vibrating plate 4 extends from one end of the inner bottom wall of the conveying pipe 1 near the inlet 11 to one end near the outlet 13;

[0021] Both the first filter 31 and the second filter 32 are built-in filter bags and are bag filters, and the mesh size of the filter bags is not less than 200 mesh.

[0022] The surface treatment device for developer particles provided by this utility model has the following working principle:

[0023] The developer particles that need to be surface treated are fed into the feed hopper 2, and the developer particles fed into the feed hopper 2 fall into the feed pipe 1 through the feed inlet 11 of the feed pipe 1.

[0024] The hot air supply device supplies hot air (the air volume of the hot air is 5-5000 m³) to the air inlet 12 of the material conveying pipe 1 through the air inlet pipe. 3 / H, temperature is 30~60℃); hot air entering the conveying pipe 1 through the air inlet 12 will flow from left to right along the conveying pipe 1, and hot air can be discharged through the air outlet 14 at the right end of the conveying pipe 1;

[0025] The developer particles falling into the feed pipe 1 from the feed inlet 11 will be carried by the hot air in the feed pipe 1 and flow from left to right. The developer particles can be discharged from the discharge port 13 at the right end of the feed pipe 1.

[0026] As the developer particles flow from left to right in the feed pipe 1, they are heated and softened by hot air. During the softening process, the developer particles tend to become rounder, and the shape of the developer particles discharged from the outlet 13 is improved (the discharged developer particles are more rounded).

[0027] Furthermore, during the flow of developer particles from left to right, the ultrasonic vibrating plate 4 laid on the bottom wall of the feed pipe 1 works continuously (frequency 5-200KHZ), which can break up the developer particles that agglomerate after heating and prevent the discharge of agglomerated developer particles.

[0028] A first filter 31 is provided at the air inlet 12 to prevent debris from entering the feed pipe 1 through the air inlet 12 and to avoid debris from mixing with developer particles;

[0029] A second filter 32 is provided at the air outlet 14 to prevent developer particles from being discharged from the air outlet 14.

[0030] As can be seen from the above, the surface treatment device for developer particles provided by this utility model can improve the shape of developer particles (make the developer particles more rounded), thereby improving the fluidity of developer particles and improving the tip discharge phenomenon of developer particles.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A surface treatment apparatus for developer particles, characterized in that, include: A horizontally placed conveying pipe has an inlet and an outlet at both ends, an air inlet on the conveying pipe near the inlet, an air outlet on the conveying pipe near the outlet, a hot air supply device connected to the air inlet via an air inlet pipe, a second filter at the air outlet, and an ultrasonic vibrating plate laid on the inner wall of the conveying pipe.

2. The surface treatment apparatus for developer particles according to claim 1, characterized in that, The feed inlet is located on the top wall of the feed pipe.

3. The surface treatment apparatus for developer particles according to claim 2, characterized in that, The discharge port is located on the bottom wall of the conveying pipe.

4. The surface treatment apparatus for developer particles according to claim 3, characterized in that, The air inlet is located on the top wall of the material conveying pipe.

5. The surface treatment apparatus for developer particles according to claim 4, characterized in that, The air outlet is located on the top wall of the material conveying pipe.

6. The surface treatment apparatus for developer particles according to claim 5, characterized in that, The ultrasonic vibrating plate is laid on the bottom wall of the conveying pipe, and the ultrasonic vibrating plate extends from the end of the bottom wall of the conveying pipe near the inlet to the end near the outlet.

7. The surface treatment apparatus for developer particles according to claim 1, characterized in that, Also includes: The feed hopper is connected to the feed inlet.

8. The surface treatment apparatus for developer particles according to claim 1, characterized in that, Also includes: The first filter is located at the air inlet.

9. The surface treatment apparatus for developer particles according to claim 8, characterized in that, Both the first and second filters have built-in filter bags and are bag filters.

10. The surface treatment apparatus for developer particles according to claim 9, characterized in that, The mesh size of the filter bag is not less than 200 mesh.

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