Two-step grinding and crushing device for printer toner

Abstract

The utility model discloses a two-step grinding and crushing device for printer powdered ink, which comprises a box body internally provided with a grinding cavity and a crushing cavity, the grinding cavity is positioned above the crushing cavity, a partition plate is arranged between the grinding cavity and the crushing cavity, a discharge port is arranged on the partition plate, and a feed port is arranged on the box body and positioned at the upper part of the grinding cavity. A grinding hammer and a guiding inclined plate inclining downwards are arranged in the grinding cavity, the highest position of the guiding inclined plate is lower than the feeding port, a grinding cylinder is arranged on the guiding inclined plate and located below the grinding hammer, the top of the grinding cylinder is flush with the lowest portion of the guiding inclined plate, a filter screen is fixedly connected to the bottom of the grinding cylinder, and the filter screen and the bottom face of the grinding hammer are arranged at intervals. A grinding motor is fixed on the box body; a driving end of the grinding motor is connected with the grinding hammer and used for driving the grinding hammer to rotate; a transmission shaft is arranged in the smashing cavity, a stirring motor connected with the transmission shaft is arranged outside the box body, the transmission shaft is connected with a shifting shaft, and an air inlet pipe is arranged in the smashing cavity and located below the transmission shaft.

Description

Technical Field

[0001] The utility model relates to a two-step grinding and pulverizing device for printer toner, belonging to the technical field of printer toner pulverizing equipment. Background Art

[0002] Carbon powder, also known as toner, is a powdered substance used in laser printers to form images on paper. Black toner is composed of binder resin, carbon black, charge control agent, external additives and other ingredients. Color toner also needs to add pigments of other colors.

[0003] Toner production equipment mainly refers to the micron-level crushing and classification of printer toner. At present, there are two methods for toner production: chemical synthesis and physical crushing. Among them, physical crushing is mainly carried out in China using an ultra-fine crushing and classification system. In the process of printer toner production, larger particles are often produced, which will affect the imaging effect when printing or copying. If the printer or copier uses this toner with particles for a period of time, it will affect the printing and copying efficiency of the equipment, cause waste, and even affect the service life of the equipment. Therefore, if the problem of large particles can be solved during toner production, the above problems can be avoided.

[0004] A Chinese patent with application number 202222635097.6 and name “A micron-sized carbon powder airflow collision crusher” discloses a micron-sized carbon powder airflow collision crusher, which utilizes gas convection to drive the toner raw materials to collide, thereby crushing the raw materials. However, there are often larger particles in the raw materials, which will increase the time consumption of the gas crushing process, thereby affecting the production efficiency of the airflow collision crusher. Utility Model Content

[0005] The utility model aims to provide a two-step grinding and pulverizing device for printer toner, which can grind large solid particles in the raw material before gas pulverization, so as to solve the technical problem that the production efficiency of the air flow pulverizer in the prior art is easily affected by the size of the raw material particles.

[0006] The utility model adopts the following technical scheme: a two-step grinding and crushing device for printer toner, comprising a box body with a grinding chamber and a crushing chamber arranged therein, the grinding chamber being located above the crushing chamber, a partition being arranged between the grinding chamber and the crushing chamber, a discharge port being arranged on the partition, a discharge valve being arranged on the discharge port, a feed port being arranged at a position located at the upper part of the grinding chamber on the box body, a grinding hammer and a downwardly inclined guide ramp being arranged in the grinding chamber, the highest point of the guide ramp being connected to the side wall of the box body and being lower than the feed port, a grinding cylinder being arranged on the guide ramp being located below the grinding hammer, the top of the grinding cylinder being flush with the lowest part of the guide ramp, a filter being fixedly connected to the bottom of the grinding cylinder, the filter being spaced apart from the bottom surface of the grinding hammer, a grinding motor being fixed on the box body, a driving end of the grinding motor being connected to the grinding hammer for driving the grinding hammer to rotate; a transmission shaft being arranged in the crushing chamber, a stirring motor connected to the transmission shaft being arranged outside the box body, a toggle shaft being connected to the transmission shaft, an air inlet being arranged below the transmission shaft in the crushing chamber, the air inlet passing through the wall of the box body, and a discharge port being arranged at the bottom of the crushing chamber.

[0007] The partition is inclined downward to form a conical lower hopper.

[0008] A feeding bin is arranged outside the feeding port.

[0009] There are two transmission shafts and two intake pipes respectively, the two transmission shafts are symmetrically arranged, the two intake pipes are symmetrically arranged, each intake pipe is provided with a plurality of air guide pipes at a position below the transmission shaft, and the opening of each air guide pipe faces the dial shaft.

[0010] The transmission shaft is arranged horizontally, the air intake pipe is arranged obliquely upward, and the air guide pipe is arranged vertically on the air intake pipe.

[0011] The inner diameter of the air guide tube gradually decreases from bottom to top.

[0012] The toggle shafts are obliquely arranged on the transmission shaft, and the toggle shafts are evenly arranged on the transmission shaft.

[0013] Each of the toggle shafts is provided with a toggle support shaft.

[0014] The bottom surface of the grinding hammer is a convex-concave structure.

[0015] The top of the grinding hammer is a conical or curved structure that is larger at the top and smaller at the bottom.

[0016] The beneficial effect of the utility model is as follows: when the utility model is used, the carbon powder raw material is fed into the grinding chamber through the feed port, and the guide inclined plate in the grinding chamber can allow the raw material to fall into the grinding chamber from the feed port, and the grinding motor is used to drive the grinding hammer to rotate to grind the raw material between the grinding hammer and the filter screen into small particles, and the small particles of raw material enter the crushing chamber after being filtered by the filter screen, and high-pressure gas is passed into the crushing chamber through the air intake pipe, thereby driving the carbon powder raw material to mix and collide, and the carbon powder raw material is crushed after collision, and the stirring motor is started, and the stirring motor drives the transmission shaft to rotate, thereby stirring the raw material and generating partial turbulence, and more turbulence drives the raw material to produce better collision and crushing effects in the crushing chamber.

[0017] The utility model designs the structures of the grinding chamber and the crushing chamber, so that the ground raw materials are discharged into the crushing chamber through the discharge port and then gas crushed, thereby avoiding the appearance of large pieces of fixed raw materials in the raw materials during the gas crushing process, thereby reducing the time spent on grinding and improving production efficiency.

[0018] Preferably, the partition between the grinding chamber and the crushing chamber is in the form of a conical lower hopper, which facilitates the discharge of the ground material into the crushing chamber and prevents the material from accumulating on the partition.

[0019] Preferably, the feed bin at the feed inlet can prevent leakage of raw materials during feeding.

[0020] Preferably, by providing two symmetrical transmission shafts and two symmetrical air ducts, the two air flows generate convection transmission, thereby driving the carbon powder raw materials to mix and collide. The air ducts are located below the toggle shaft, which can better crush and collide the raw materials.

[0021] Preferably, by providing multiple toggle shafts and toggle support shafts, it is beneficial for the airflow to enter the middle of the crushing chamber, generating gas that is more suitable for stirring and crushing; the toggle shafts and toggle support shafts are designed with multiple teeth, which promotes the generation of more turbulence. More turbulence drives the raw materials inside the mixing box to produce better impact and crushing effects, and transmits multiple airflows through the air duct, which is beneficial to the transmission of high-pressure gas.

[0022] Preferably, the grinding friction is increased by designing the concave and convex surface of the grinding hammer, thereby improving the quality and efficiency of raw material pretreatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a two-step grinding and pulverizing device for printer toner according to an embodiment of the utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the partial enlarged structure of the middle airway.

[0025] In the figure: 1-box; 2-feeding bin; 201-feeding port; 3-grinding chamber; 301-guide inclined plate; 302-filter screen; 303-grinding cylinder; 4-grinding motor; 5-driving end; 6-grinding hammer; 7-discharging port; 8-discharging valve; 9-crushing chamber; 10-transmission pipe; 11-venting pipe; 12-stirring motor; 13-adapter plate; 14-sealing pad; 15-drive shaft; 1501-sliding shaft; 1502-sliding support shaft; 16-air guide pipe; 17-inlet pipe; 18-discharging port; 19-discharging valve; 20-partition. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The two-step grinding and pulverizing device for printer toner of this embodiment is as follows: Figure 1 to Figure 2 As shown, it includes a box body 1 with a grinding chamber 3 and a crushing chamber 9 inside, the grinding chamber 3 is located above the crushing chamber 9, a partition 20 is provided between the grinding chamber 3 and the crushing chamber 9, the partition 20 is inclined downward to form a conical lower hopper, a discharge port 7 is opened on the partition 20, a discharge valve 8 is provided on the discharge port 7, a feed port 201 is provided on the box body 1 at the upper part of the grinding chamber 3, and a feed bin 2 is provided outside the feed port 201.

[0028] A grinding hammer 6 and a downwardly inclined guide ramp 301 are provided in the grinding chamber 3, the highest point of the guide ramp 301 is connected to the side wall of the box body 1 and is lower than the feed port 201, a grinding cylinder 303 is provided on the guide ramp 301 below the grinding hammer 6, the top of the grinding cylinder 303 is flush with the lowest part of the guide ramp 301, a filter screen 302 is fixedly connected to the bottom of the grinding cylinder 301, and the filter screen 302 is spaced apart from the bottom surface of the grinding hammer 6, a grinding motor 4 is fixed on the box body 1, and a driving end 5 of the grinding motor 4 is connected to the grinding hammer 6 for driving the grinding hammer 6 to rotate; the bottom surface of the grinding hammer 6 is a convex-concave structure, and the top of the grinding hammer 6 is a conical or curved structure with a larger top and a smaller bottom. The grinding motor 4 drives the grinding hammer 6 to rotate, so that the grinding hammer 6 cooperates with the bottom surface of the grinding hammer 6 to rotate and grind the raw material. The raw material with a smaller particle size after grinding is filtered through the filter screen 302 and discharged from the discharge port. The grinding hammer 6 is used in conjunction with the filter screen 302, and the upper part of the grinding hammer 6 is arranged in an arc shape, so that the raw material falling on the upper part of the grinding hammer 6 can fall down, and the lower part of the grinding hammer 6 is designed with a concave and convex surface to increase the grinding friction.

[0029] The grinding chamber 3 is provided with a transmission shaft 15, the box body 4 is provided with a stirring motor 12 connected to the transmission shaft 15, the transmission shaft 15 is connected with a toggle shaft 1501, the toggle shaft 1501 is obliquely arranged on the transmission shaft 15, and each toggle shaft 1501 is evenly arranged on the transmission shaft 15. Each toggle shaft 1501 is provided with a toggle support shaft 1502.

[0030] An air intake pipe 17 is provided below the transmission shaft 15 in the pulverizing chamber 9. The air intake pipe 17 passes through the wall of the box 7. A discharge port 18 is provided at the bottom of the pulverizing chamber 9. A discharge valve 19 is installed on the discharge port 18. There are two transmission shafts 15 and two air intake pipes 17, respectively. The two transmission shafts 15 are symmetrically arranged, and the two air intake pipes 17 are symmetrically arranged. Each air intake pipe 17 is provided with a plurality of air guide pipes 16 at a position below the transmission shaft 15, and the opening of each air guide pipe 16 faces the toggle shaft 1501. The transmission shaft 15 is horizontally arranged, and the air intake pipe 17 is obliquely arranged upward. The air intake pipe 16 is vertically arranged on the air intake pipe 17, and the inner diameter of the air guide pipe 16 gradually decreases from bottom to top.

[0031] Adapter plates 13 are connected to both sides of the pulverizing chamber 9, and the output ends of the pulverizing motors 12 pass through the adapter plates, respectively. Each transmission shaft 15 is connected to the output end of each pulverizing motor 12, and the outer circumferential wall of each transmission shaft 15 is connected to a toggle shaft 1501, which expands toward the middle of the pulverizing chamber 9. The composition shape of the toggle shaft 1501 facilitates the transmission of gas to the middle of the pulverizing chamber 9, thereby producing a more suitable stirring and transmitting gas effect. Sealing pads 14 are fixedly connected to the positions of the transmission shafts 15 and the air guide tubes 16 on both sides of the inner wall of the pulverizing chamber 9, and each transmission shaft 15 passes through the corresponding sealing pad 14, and each air guide tube 16 passes through the corresponding sealing pad 14. The sealing pad 14 is made of rubber material, and the transmission shaft and the air guide tube 16 are supported by the sealing pad 14, thereby facilitating the positioning of the rotation part and the gas transmission part, and reducing gas leakage.

[0032] The inner wall of the air guide pipe 16 is contracted toward the middle of the pulverizing chamber 9. The shape of the inner wall of the air guide pipe 16 facilitates the transmission of gas and increases the pressure of the gas. The raw material is first ground in the grinding chamber 3 and then enters the pulverizing chamber 9 for gas pulverization. The high-pressure gas is introduced into the pulverizing chamber 9 through the air guide pipe 16, and two air flows produce convection transmission, thereby driving the mixing and collision of the toner. After the collision, the toner is crushed, and the transmission shaft is driven to rotate by the stirring motor 12, thereby stirring the raw material and generating partial turbulence. More turbulence drives the raw material to produce better impact and crushing effects in the pulverizing chamber 9, and multiple air flows are transmitted through the air guide pipe 16, which is conducive to the transmission of high-pressure gas, improves the mixing effect, and is beneficial to the processing of the raw material.

[0033] When in use, the carbon powder raw material enters the grinding chamber 3 through the feed bin 2 and the feed port 201. The guide inclined plate 301 in the grinding chamber 3 can allow the raw material to fall into the grinding chamber 3 from the feed port 201. The grinding motor 4 is used to drive the grinding hammer 6 to grind the raw material in the grinding chamber 3 into powder. The powdered raw material enters the crushing chamber 9 after being filtered by the filter screen 302. The high-pressure gas is passed into the crushing chamber 9 through the air intake pipe 17, thereby driving the carbon powder raw material to mix and collide. After the carbon powder raw material collides, the carbon powder is crushed. The stirring motor 12 is started, and the stirring motor 12 drives the transmission shaft to rotate, thereby stirring the raw material and generating some turbulence. More turbulence drives the raw material inside the crushing chamber 9 to produce better impact and crushing effects. The two air ducts are symmetrically arranged, and the two air flows generate convection transmission, thereby driving the mixing and collision of the carbon powder raw materials. After the collision, the transmission shaft and the shifting shaft rotate at the same time, stirring the raw materials and generating partial turbulence. The shifting shaft and the shifting support shaft are designed with multiple teeth, which promotes the generation of more turbulence. More turbulence drives the raw materials inside the mixing box to produce better impact and crushing effects, and transmits multiple air flows through the air ducts, which is conducive to the transmission of high-pressure gas.

[0034] The two-step grinding and pulverizing device for printer toner of the utility model can grind raw materials before gas pulverization, so that large pieces of solid raw materials are ground into small particles, reducing the time consumed in the next gas pulverization process, thereby improving the production efficiency of toner.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-step grinding and pulverizing device for printer toner, characterized in that: The invention comprises a box body provided with a grinding chamber and a crushing chamber inside, the grinding chamber is located above the crushing chamber, a partition is provided between the grinding chamber and the crushing chamber, a discharge port is opened on the partition, a discharge valve is provided on the discharge port, a feed port is provided on the box body at a position located at the upper part of the grinding chamber, a grinding hammer and a downwardly inclined guide ramp are provided in the grinding chamber, the highest point of the guide ramp is connected to the side wall of the box body and is lower than the feed port, a grinding cylinder is provided on the guide ramp plate below the grinding hammer, the top of the grinding cylinder is flush with the lowest part of the guide ramp, a filter is fixedly connected to the bottom of the grinding cylinder, the filter is spaced apart from the bottom surface of the grinding hammer, a grinding motor is fixed on the box body, and a driving end of the grinding motor is connected to the grinding hammer for driving the grinding hammer to rotate; a transmission shaft is provided in the crushing chamber, a stirring motor connected to the transmission shaft is provided outside the box body, a toggle shaft is connected to the transmission shaft, an air inlet pipe is provided in the crushing chamber below the transmission shaft, the air inlet pipe passes through the wall of the box body, and a discharge port is provided at the bottom of the crushing chamber.

2. The two-step grinding and pulverizing device for printer toner according to claim 1, characterized in that: The partition is inclined downward to form a conical lower hopper.

3. The two-step grinding and pulverizing device for printer toner according to claim 1, characterized in that: A feeding bin is arranged outside the feeding port.

4. The two-step grinding and pulverizing device for printer toner according to claim 1, characterized in that: There are two transmission shafts and two intake pipes respectively, the two transmission shafts are symmetrically arranged, the two intake pipes are symmetrically arranged, each intake pipe is provided with a plurality of air guide pipes at a position below the transmission shaft, and the opening of each air guide pipe faces the dial shaft.

5. The two-step grinding and pulverizing device for printer toner according to claim 4, characterized in that: The transmission shaft is arranged horizontally, the air intake pipe is arranged obliquely upward, and the air guide pipe is arranged vertically on the air intake pipe.

6. The two-step grinding and pulverizing device for printer toner according to claim 4, characterized in that: The inner diameter of the air guide tube gradually decreases from bottom to top.

7. The two-step grinding and pulverizing device for printer toner according to claim 1, characterized in that: The toggle shafts are obliquely arranged on the transmission shaft, and the toggle shafts are evenly arranged on the transmission shaft.

8. The two-step grinding and pulverizing device for printer toner according to claim 1, characterized in that: Each of the toggle shafts is provided with a toggle support shaft.

9. The two-step grinding and pulverizing device for printer toner according to claim 1, characterized in that: The bottom surface of the grinding hammer is a convex-concave structure.

10. The two-step grinding and pulverizing device for printer toner according to claim 1, characterized in that: The top of the grinding hammer is a conical or curved structure that is larger at the top and smaller at the bottom.

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