Device for separating non-magnetic impurities from soft magnetic powder

Abstract

The utility model discloses a device for separating non-magnetic impurities from soft magnetic powder. The device comprises a rack, a motor, a transmission mechanism, a magnetic stick separation mechanism which is connected with the transmission mechanism and is obliquely arranged on the rack, a feed hopper arranged above the magnetic stick separation mechanism, and a material collection box and an impurity bin which are arranged below the magnetic stick separation mechanism, the magnetic stick separating mechanism comprises a plurality of magnetic sticks which are arranged in parallel at intervals and a scraping plate arranged in the middle of the magnetic sticks, gaps are formed between the magnetic sticks and the scraping plate, each magnetic stick comprises a middle shaft and a magnetic stick sleeve rotationally arranged outside the middle shaft through a connecting bearing, and the middle shaft and the magnetic stick sleeve are coaxially arranged; the middle shaft is fixedly connected to the rack, the magnetic stick sleeve is connected with the transmission mechanism, and the middle shaft is divided into a non-magnetic part facing upwards and a magnetic part facing downwards in the radial direction. According to the device, the magnetic rod is combined with the scraping plate, non-magnetic impurities in the soft magnetic powder can be separated, the printing definition of the produced soft magnetic powder is high, and the service life of a developing element is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of soft magnetic powder production, in particular to a device for separating non-magnetic impurities from soft magnetic powder. Background Art

[0002] Soft magnetic powder is a soft magnetic material for developing. It is a magnetic particle used to transfer toner to copy paper. It is mainly used in printers and copiers. Soft magnetic powder is easy to magnetize and also easy to demagnetize.

[0003] Soft magnetic powder must have good fluidity and adsorption properties during use. The purity of soft magnetic powder determines its performance. Therefore, a separation device is required to remove impurities in the soft magnetic powder during production. Existing soft magnetic powder separation devices mainly separate impurities with larger particle sizes in soft magnetic powder by particle size, and mainly use mesh structure screening.

[0004] For example, the patent with application number "202120562724.0" and name "A magnetic powder separation device for improving the purity of soft magnetic powder" discloses a soft magnetic powder separation device, including a device base, a fixed block is fixedly installed on the upper end of the device base, a vibration motor seat is fixedly installed on the upper end of the fixed block, a spring is fixedly installed on the inner side of the vibration motor seat, a connecting block is fixedly installed on the upper end of the vibration motor seat, a device housing is fixedly installed on the upper end of the connecting block, and three connecting blocks and device housings are provided, two of which are provided with filter screens on the inner side of two connecting blocks, one of which is provided with a sieve plate on the inner side of one of the connecting blocks, and connecting columns are provided on both sides of the sieve plate, and paddles are provided on the inner side of the two device housings, one of which is fixedly installed with a device top cover on the upper end of the device outside, and a drive motor is fixedly installed on the upper end of the device top cover, and a connecting shaft is provided on the lower end surface of the drive motor, and the drive motor is fixedly connected to the paddle through the connecting shaft through the device housing. The device uses a sieve plate to separate impurities with large particle size in soft magnetic powder.

[0005] The above device has the disadvantage that it cannot separate non-magnetic impurities with small particle size in soft magnetic powder. With the progress of society, the requirements for printing and copying effects are getting higher and higher. The soft magnetic powder containing non-magnetic impurities will affect the printing clarity during use. At the same time, the non-magnetic impurities will fall onto the printing paper, affecting the printing quality. In addition, the non-magnetic impurities will adhere to the developing element, affecting the service life of the developing element. Summary of the invention

[0006] The purpose of the utility model is to solve the above technical problems and provide a device for separating non-magnetic impurities from soft magnetic powder. The device adopts a combination of a magnetic stick and a scraper to separate non-magnetic impurities from soft magnetic powder. The soft magnetic powder produced has high printing clarity and does not affect the service life of the developing element.

[0007] In order to solve the above-mentioned prior art problems, the technical solution of the utility model is:

[0008] A device for separating non-magnetic impurities from soft magnetic powder comprises a frame, a motor arranged on the frame, a transmission mechanism connected to the output shaft of the motor, a magnetic stick separation mechanism connected to the transmission mechanism and obliquely arranged on the frame, a feed hopper arranged above the magnetic stick separation mechanism, and a collection box and an impurity bin arranged below the magnetic stick separation mechanism;

[0009] The magnetic stick separation mechanism includes a plurality of magnetic sticks arranged in parallel and spaced apart, and a scraper arranged in the middle of the magnetic sticks, a gap is provided between the magnetic sticks and the scraper, the magnetic stick includes a central axis, and a magnetic stick sleeve rotatably arranged outside the central axis through a connecting bearing, the central axis and the magnetic stick sleeve are arranged on the same axis, the central axis is fixedly connected to the frame, the magnetic stick sleeve is connected to the transmission mechanism, and the magnetic stick sleeve is driven to rotate around the central axis through the transmission mechanism, the central axis is radially divided into a non-magnetic part on the upper side and a magnetic part on the lower side, and one side of the magnetic part has a soft magnetic adsorption force, which can adsorb soft magnetic powder;

[0010] The upper end of the magnetic rod sleeve rotates from front to back.

[0011] Working process:

[0012] The soft magnetic powder containing impurities is loaded into the feed hopper, and the soft magnetic powder falls from the discharge port at the lower end of the feed hopper into the magnetic stick separation mechanism. At the same time, the motor drives the transmission mechanism to rotate, and the magnetic stick sleeve is driven to rotate through the transmission mechanism. The soft magnetic powder falls from top to bottom onto the magnetic stick sleeve, and the upper end of the magnetic stick sleeve rotates from front to back. Due to the adsorption effect of the magnetic part on the downward side of the central axis, the soft magnetic powder that slides onto the magnetic stick sleeve is adsorbed on the magnetic stick sleeve and driven downward with the rotation of the magnetic stick sleeve, while the non-magnetic impurities are moved downward with the magnetic stick sleeve. Due to the rotation of the magnetic stick, the powder is thrown away from the magnetic stick sleeve and falls into the impurity bin. The soft magnetic powder is driven to the upward side of the central axis at the lower position of the magnetic stick sleeve. Since the non-magnetic part of the upward side of the central axis has no adsorption effect on the soft magnetic powder, the soft magnetic powder is thrown away from the magnetic stick sleeve and falls onto the scraper. Then it slides down along the scraper and slides down along the scraper to the next magnetic stick. Similarly, the non-magnetic impurity separation process of the next magnetic stick is carried out. The soft magnetic powder containing impurities is separated by multi-stage magnetic sticks to obtain clean soft magnetic powder, and finally falls into the aggregate box.

[0013] Furthermore, the magnetic rod separation mechanism comprises three magnetic rods arranged in parallel and at intervals, and the magnetic rod separation mechanism can perform a three-level non-magnetic impurity separation process;

[0014] Further, the transmission mechanism is a chain transmission mechanism, the output shaft of the motor is connected to a motor gear, the magnetic stick sleeve is connected to a magnetic stick sleeve gear, the chain transmission mechanism is connected to the motor through the motor gear, and the chain transmission mechanism is connected to the magnetic stick sleeve through the magnetic stick sleeve gear, and is driven by the motor to drive the motor gear, the chain transmission mechanism, the magnetic stick sleeve gear, and the magnetic stick sleeve to rotate in turn;

[0015] Furthermore, the gap between the magnetic roller and the scraper is adjustable to accommodate soft magnetic powders of different particle sizes. The smaller the gap, the thinner the soft magnetic powder on the magnetic roller, the easier it is for impurities to be thrown away under the action of centrifugal force, and the better the effect of separating impurities.

[0016] Furthermore, the magnetic rod sleeve is made of aluminum or stainless steel, and the magnetic rod sleeve has no magnetic adsorption force;

[0017] Furthermore, the magnetic rod sleeve is rotatably arranged, and the central axis is fixedly arranged;

[0018] Furthermore, scrapers are provided above and below the magnetic rod separation mechanism;

[0019] Furthermore, the magnetic portion of the central axis is composed of a plurality of magnetic sheets.

[0020] The utility model discloses a device for separating non-magnetic impurities from soft magnetic powder, and its beneficial effects are as follows:

[0021] 1. The device uses a combination of magnetic sticks and scrapers to separate non-magnetic impurities from soft magnetic powder. The soft magnetic powder produced has high printing clarity and does not affect the service life of the developing element;

[0022] 2. Multi-stage purification can be used to obtain the best purity and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 , which is a structural diagram of a device for separating non-magnetic impurities from soft magnetic powder (when the collection box is opened) of the utility model;

[0024] Figure 2 , which is a structural diagram of a device for separating non-magnetic impurities from soft magnetic powder (when the collection box is closed) of the utility model;

[0025] Figure 3 , is a radial cross section of the middle position of a magnetic stick of a device for separating non-magnetic impurities from soft magnetic powder in the utility model;

[0026] Figure 4 , which is a schematic diagram of the magnetic region and the non-magnetic region of a magnetic stick of a device for separating non-magnetic impurities from soft magnetic powder according to the utility model;

[0027] Figure 5, which is a schematic diagram of the magnetic powder route of a soft magnetic powder separation non-magnetic impurity device of the utility model during operation, arrow A is the rotation direction of the magnetic rod sleeve, arrow B is the soft magnetic powder route, and C is the route for impurities to be thrown away. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with embodiments:

[0029] Example:

[0030] like Figure 1 to Figure 5 A device for separating non-magnetic impurities from soft magnetic powder comprises a frame 1, a motor 2 arranged on the frame, a transmission mechanism 3 connected to the output shaft of the motor, a magnetic stick separation mechanism 4 connected to the transmission mechanism and obliquely arranged on the frame, a feed hopper 5 arranged above the magnetic stick separation mechanism, and a collection box 6 and an impurity bin 7 arranged below the magnetic stick separation mechanism;

[0031] The magnetic stick separation mechanism 4 includes three parallel and spaced magnetic sticks 41, and a scraper 42 arranged in the middle of the magnetic sticks, there is a gap between the magnetic sticks and the scraper, the magnetic stick includes a central axis 411, and a magnetic stick sleeve 412 rotatably arranged outside the central axis through a connecting bearing, the central axis and the magnetic stick sleeve are arranged at the same axis, the central axis is fixedly connected to the frame, the magnetic stick sleeve is connected to the transmission mechanism, and the magnetic stick sleeve is driven to rotate around the central axis through the transmission mechanism, and the central axis 411 is radially divided into a non-magnetic side facing upward Part 411a and a magnetic part 411b facing downward, the magnetic part has soft magnetic powder adsorption force and can adsorb soft magnetic powder; the transmission mechanism is a chain transmission mechanism, the output shaft of the motor is connected with a motor gear, the magnetic stick sleeve is connected with a magnetic stick sleeve gear, the chain transmission mechanism is connected to the motor through the motor gear, and the chain transmission mechanism is connected to the magnetic stick sleeve through the magnetic stick sleeve gear, and is driven by the motor, which drives the motor gear, chain transmission mechanism, magnetic stick sleeve gear, and magnetic stick sleeve to rotate in turn.

[0032] The upper end of the magnetic rod sleeve 412 rotates from front to back.

[0033] Working process:

[0034] The soft magnetic powder containing impurities is loaded into the feed hopper, and the soft magnetic powder falls from the discharge port at the lower end of the feed hopper into the magnetic stick separation mechanism. At the same time, the motor drives the transmission mechanism to rotate, and the magnetic stick sleeve is driven to rotate through the transmission mechanism. The soft magnetic powder falls from top to bottom onto the magnetic stick sleeve, and the upper end of the magnetic stick sleeve rotates from front to back. Due to the magnetic adsorption effect on the downward side of the central axis, the soft magnetic powder that slides onto the magnetic stick sleeve is adsorbed on the magnetic stick sleeve and driven downward with the rotation of the magnetic stick sleeve, while the non-magnetic impurities are removed with the rotation of the magnetic stick sleeve. Due to the action of centrifugal force, the soft magnetic powder is thrown away from the magnetic stick sleeve and falls downward to the impurity bin; the soft magnetic powder is driven to the upward side of the central axis at the lower position of the magnetic stick sleeve. Since the upward side of the central axis has no adsorption effect on the soft magnetic powder, the soft magnetic powder is thrown away from the magnetic stick sleeve and falls downward onto the scraper, and then slides downward along the scraper. The soft magnetic powder slides downward along the scraper to the next level of magnetic stick, and the non-magnetic impurity separation process of the next level of magnetic stick is carried out in the same way. The impure soft magnetic powder is separated by multi-level magnetic stick impurities to obtain clean soft magnetic powder, and finally falls into the aggregate box.

[0035] Furthermore, the magnetic rod separation mechanism 4 includes three magnetic rods 41 arranged in parallel and spaced apart, and the magnetic rod separation mechanism can perform a three-level non-magnetic impurity separation process;

[0036] Further, the transmission mechanism 3 is a chain transmission mechanism, the output shaft of the motor is connected to a motor gear, the magnetic stick sleeve is connected to a magnetic stick sleeve gear, the chain transmission mechanism is connected to the motor through the motor gear, and the chain transmission mechanism is connected to the magnetic stick sleeve through the magnetic stick sleeve gear, and is driven by the motor to drive the motor gear, the chain transmission mechanism, the magnetic stick sleeve gear, and the magnetic stick sleeve to rotate in turn;

[0037] Furthermore, the gap between the magnetic roller 41 and the scraper 42 is adjustable to accommodate soft magnetic powders of different particle sizes. The smaller the gap, the thinner the soft magnetic powder on the magnetic roller, the easier it is for impurities to be thrown away under the action of centrifugal force, and the better the effect of separating impurities.

[0038] Furthermore, the magnetic rod sleeve 412 is made of aluminum or stainless steel, and the magnetic rod sleeve has no magnetic adsorption force;

[0039] Furthermore, the magnetic rod sleeve is rotatably arranged, and the central axis is fixedly arranged;

[0040] Furthermore, scrapers 42 are provided above and below the magnetic rod separation mechanism 4;

[0041] Furthermore, the magnetic portion of the central axis is composed of a plurality of magnetic sheets.

[0042] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A device for separating non-magnetic impurities from soft magnetic powder, characterized in that: It includes a frame, a motor arranged on the frame, a transmission mechanism connected to the output shaft of the motor, a magnetic stick separation mechanism connected to the transmission mechanism and obliquely arranged on the frame, a feed hopper arranged above the magnetic stick separation mechanism, and a collection box and an impurity bin arranged below the magnetic stick separation mechanism; The magnetic stick separation mechanism includes a plurality of magnetic sticks arranged in parallel and spaced apart, and a scraper arranged in the middle of the magnetic sticks, a gap is provided between the magnetic sticks and the scraper, the magnetic stick includes a central axis, and a magnetic stick sleeve arranged outside the central axis by connecting a bearing for rotation, the central axis and the magnetic stick sleeve are arranged on the same axis, the central axis is fixedly connected to the frame, the magnetic stick sleeve is connected to the transmission mechanism, and the magnetic stick sleeve is driven to rotate around the central axis by the transmission mechanism, the central axis is radially divided into a non-magnetic part on the upper side and a magnetic part on the lower side, and one side of the magnetic part has a soft magnetic powder adsorption force and can adsorb soft magnetic powder; The upper end of the magnetic rod sleeve rotates from front to back.

2. The device for separating non-magnetic impurities from soft magnetic powder according to claim 1, characterized in that: The magnetic rod separation mechanism comprises three magnetic rods arranged in parallel and at intervals, and the magnetic rod separation mechanism can perform a three-level non-magnetic impurity separation process.

3. The device for separating non-magnetic impurities from soft magnetic powder according to claim 1, characterized in that: The transmission mechanism is a chain transmission mechanism, the output shaft of the motor is connected to the motor gear, the magnetic stick sleeve is connected to the magnetic stick sleeve gear, the chain transmission mechanism is connected to the motor through the motor gear, and the chain transmission mechanism is connected to the magnetic stick sleeve through the magnetic stick sleeve gear.

4. The device for separating non-magnetic impurities from soft magnetic powder according to claim 1, characterized in that: The gap between the magnetic stick and the scraper is adjustable.

5. The device for separating non-magnetic impurities from soft magnetic powder according to claim 1, characterized in that: The magnetic rod sleeve is made of aluminum or stainless steel.

6. The device for separating non-magnetic impurities from soft magnetic powder according to claim 1, characterized in that: The magnetic rod sleeve is rotatably arranged, and the central axis is fixedly arranged.

7. The device for separating non-magnetic impurities from soft magnetic powder according to claim 1, characterized in that: Scrapers are also arranged above and below the magnetic rod separation mechanism.

8. The device for separating non-magnetic impurities from soft magnetic powder according to claim 1, characterized in that: The magnetic part of the central axis is composed of a plurality of magnetic sheets.

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