A polishing powder mixing and screening device

Abstract

The present application belongs to the technical field of polishing powder processing, and particularly relates to a mixing and screening device for polishing powder, which comprises a base frame, a screening barrel arranged on the base frame, a support and a discharging channel installed in the inner cavity of the screening barrel, a quick-release assembly, the quick-release assembly comprising a screen plate, a positioning rod connected in the screen plate, the positioning rod extending into the support, a reset rod and a lifting plate arranged in the support, a driving assembly, the driving assembly comprising a split rod, a linkage rod connected in the split rod, and a hydraulic rod arranged at the lower end of the linkage rod, and an auxiliary assembly, the auxiliary assembly comprising a scraper, the scraper being connected to the split rod, a striking rod being rotatably connected to the split rod, and the scraper and the striking rod being arranged on the upper and lower sides of the screen plate, respectively. The present application can realize quick disassembly and assembly of the screen plate, synchronous rotation of multiple split rods, and different operating states controlled by adjusting the height of the linkage rod, thereby facilitating control.

Description

Technical Field

[0001] This invention belongs to the field of polishing powder processing technology, and specifically relates to a mixing and sieving device for polishing powder. Background Technology

[0002] Polishing powder, as a core consumable for polishing precision optical devices and semiconductor wafers, directly affects the surface treatment quality due to the uniformity of its particle size distribution. Traditional screening equipment still has some technical defects during use, resulting in poor batch stability and high cross-contamination rates.

[0003] First, different polishing stages require specific mesh sizes of screens, so polishing powders of different particle diameters need to be screened. However, different models and mesh sizes of screens are needed for different screening requirements. But when replacing and disassembling screens of different models and mesh sizes, the disassembly method is too cumbersome, resulting in excessive time consumption for disassembly and replacement, which affects the processing efficiency of the factory.

[0004] Secondly, in existing screening devices, the screened powder accumulates on the screen after screening, affecting subsequent screening operations. Furthermore, during screening, due to the sealing and positioning of the discharge port, small particles of powder often mix with large particles or accumulate at the discharge port, resulting in poor screening performance. Summary of the Invention

[0005] The purpose of this invention is to provide a mixing and sieving device for polishing powder, which can realize the quick assembly and disassembly of the sieve plate, the synchronous rotation of multiple component rods, and can enter different operating states by adjusting the height of the linkage rod, making it easy to control.

[0006] The specific technical solution adopted by this invention is as follows:

[0007] A device for mixing and sieving polishing powder, comprising:

[0008] The base frame has a screening barrel installed on it, and the inner cavity of the screening barrel is equipped with a support and a discharge channel.

[0009] The quick-release assembly includes a sieve plate, which is mounted on a bracket. A positioning rod is slidably connected to the inner cavity of the sieve plate. The positioning rod extends into the bracket, and a reset rod is provided in the inner cavity of the bracket. The reset rod is in contact with the positioning rod, and a lifting plate is slidably connected to the inner cavity of the bracket.

[0010] The drive assembly includes a split rod, which is disposed in the inner cavity of the bracket, and a linkage rod is slidably connected to the inner cavity of the split rod. A hydraulic rod is provided at the lower end of the linkage rod.

[0011] The auxiliary assembly comprises a scraper connected to the split rod, and the split rod is rotationally connected with a rammer.

[0012] The three states are triggered by adjusting the height of the linkage rod.

[0013] The second state is that the linkage rod rises to the middle position to control the opening of the discharge channel.

[0014] The third state is that the linkage rod rises to the top end to drive the lifting plate to rise and drive the reset rod to push the positioning rod back into the inner cavity of the sieve plate.

[0015] In a preferred embodiment, the sieve plate is provided with two groups, each group is provided with four pieces, which are evenly distributed on the two groups of supports, and the sieve plate is a quarter circular structure, the inner cavities on both sides are slidingly connected with positioning rods, the inner cavities of the sieve plate are provided with square slots at the outer circle of the positioning rods, and the first springs are fixedly connected in the slots, and the other end of the first spring is fixedly connected to the outer circle of the positioning rod.

[0016] In a preferred embodiment, the inner wall of the screening barrel is provided with a plurality of hole grooves, the quick release assembly further comprises a push rod, the push rod is slidingly connected in the hole groove, and the end of the push rod close to the inner cavity of the hole groove is fixedly connected with a second spring, the other end of the second spring is fixedly connected in the hole groove, and the end of the push rod extending out of the hole groove is movably inserted into the inner cavity of the sieve plate and is in contact with the end of the positioning rod close to the outer side of the screening barrel, the inner cavity of the support is slidingly connected with a reset rod, and the end of the reset rod close to the inner cavity of the support extends out of the inner cavity of the support, and the other end of the reset rod is in contact with the other end of the positioning rod, the lifting plate is slidingly connected in the inner cavity of the support and is located below the reset rod.

[0017] In a preferred embodiment, the upper end of the base frame is fixedly connected with four groups of damping shock columns, the upper end of each of the four groups of damping shock columns is fixedly connected with a top frame, the screening barrel is fixedly installed in the middle part of the top frame, and the lower end of the screening barrel is provided with three groups of outlets, two of which are in communication with the discharge channel, and the other is in communication with the inner cavity bottom end of the screening barrel.

[0018] In a preferred embodiment, the discharge channel is provided with two groups, and the inlets of the upper ends of the two groups of discharge channels are respectively parallel to the top surfaces of the two groups of supports, the inner cavities of the two groups of discharge channels are rotationally connected with baffles, the lower ends of the baffles are rotationally connected with electric push rods, and the lower ends of the electric push rods are rotationally connected in the inner cavities of the discharge channels.

[0019] In a preferred scheme, the three groups of split rods are independently arranged, the upper end of the left side of the top frame is fixedly installed with a motor, the output shaft of the motor penetrates through the top frame and is engaged with a chain, the lower end of the split rod at the lower end of the screening barrel is placed outside the screening barrel and is fixedly connected with a gear ring, and the inner ring of the right end of the chain is engaged with the outer ring of the gear ring.

[0020] In a preferred scheme, the inner cavity of the split rod is slidingly connected with a linkage rod, the linkage rod is slidingly connected in the inner cavities of the three groups of split rods and penetrates through the two groups of supports, the lower end of the linkage rod extends out of the split rod and is fixedly connected with a mounting plate, and the lower end of the mounting plate is rotatably connected with the output end of the hydraulic rod.

[0021] In a preferred scheme, the two groups of scrapers are installed at the outer rings of the bottom ends of the upper and middle split rods, each group is provided with three scrapers which are uniformly distributed, the lower ends of the scrapers are contactingly connected with the upper end surfaces of the screen plates, the two groups of impact rods are installed at the outer rings of the upper ends of the middle and lower split rods, each group is provided with three impact rods which are uniformly distributed, the outer rings of the impact rods are contactingly connected with the lower end surfaces of the screen plates, and the auxiliary assembly further comprises a worm gear which is fixedly installed at the outer ring of the impact rod, the lower end inner ring of the support is fixedly connected with an adapter ring, and the outer ring of the worm gear is engaged with the lower end inner ring of the adapter ring.

[0022] In a preferred scheme, the linkage rod is fixedly installed with a shielding ring below the lifting plate, and the outer diameter of the shielding ring is greater than the inner diameter of the lifting plate.

[0023] In a preferred scheme, the inner cavities of the middle and lower split rods are fixedly installed with infrared sensors at the upper ends, and the infrared sensors are arranged above the shielding ring.

[0024] The technical effects achieved by the application are as follows.

[0025] The quick release assembly can realize quick disassembly and assembly of the screen plate, and the screen plate can be quickly replaced or maintained according to requirements; during use, the screen plate is placed above the support through the scrapers and impact rods, then the screen plate is placed flat and inserted into the groove of the support, at this time, the pushing part in the screening barrel is inserted into the support and contacts the positioning rod, and the positioning rod is inserted into the support, so that the reset rod is placed in the inner cavity of the support, and then the positioning rod and the pushing part of the screening barrel complete the limiting and fixing of the screen plate, and the installation is completed, and during disassembly, the reset rod is reset by driving the lifting plate to rise, so that the positioning rod and the pushing part of the screening barrel are reset, and the limiting and fixing of the screen plate is released, so that the screen plate can be disassembled, the quick disassembly and assembly of the screen plate are realized, and the screen plate is convenient to maintain and replace screen plates of different models and numbers.

[0026] The driving assembly and the auxiliary assembly of the application can realize the synchronous rotation of the multi-component body rod, and can enter different operating states by adjusting the height control device of the linkage rod, facilitating control; when the linkage rod is in the initial first state, the driving part of the driving assembly drives the lower part of the split rod to rotate, and the lower part of the split rod can drive the middle part and the upper part of the split rod to rotate together through the linkage rod, thereby driving the scraper and the impact rod to operate; then the hydraulic rod pushes the linkage rod to rise to the second state, and the linkage rod will trigger the control part of the discharging channel opening and closing after rising, thereby driving the inlet of the discharging channel to open, so that the different sizes of the screened powder can be discharged respectively; then the linkage rod continues to rise to the top to enter the third state, and the linkage rod will push the lifting plate to rise to the top together, thereby pushing the reset rod to reset, and entering the disassembly state of the screen plate, so that the operating state of the device can be adjusted according to the height of the linkage rod.

[0027] The auxiliary assembly of the application can realize the cleaning and vibration of the screen plate, and improve the efficiency and effect of screening; when the split rod rotates, the scraper and the impact rod will rotate, at this time, the scraper will continuously scrape the top surface of the screen plate to stir, avoiding the blockage of the screen hole by large particle powder, and the impact rod will rotate through the adjustment part of the auxiliary assembly, and continuously impact the lower end of the screen plate, so that the screen plate vibrates, improving the efficiency and effect of screening. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the overall structure schematic diagram in the application;

[0029] Figure 2 is the overall bottom view schematic diagram in the application;

[0030] Figure 3 is the overall cross-sectional view schematic diagram in the application;

[0031] Figure 4 is the top view schematic diagram of the screening barrel in the application;

[0032] Figure 5 is the cross-sectional view schematic diagram of the discharging channel in the application;

[0033] Figure 6 is the position schematic diagram of the screen plate and the support in the application;

[0034] Figure 7 is the cross-sectional view schematic diagram of the screen plate in the application;

[0035] Figure 8 is the split effect diagram of the screen plate and the support in the application;

[0036] Figure 9 is the cross-sectional view schematic diagram of the support in the application;

[0037] Figure 10 is a schematic diagram of the position of the split rod in the present application;

[0038] Figure 11 is a schematic diagram of the split rod in the present application;

[0039] Figure 12 is a split effect diagram of the split rod and the bracket in the present application;

[0040] Figure 13 is a schematic diagram of the position of the split rod and the linkage rod in the present application;

[0041] Figure 14 is a schematic diagram of the split rod and the bracket in the present application;

[0042] Figure 15 is a schematic diagram of the position of the lifting plate and the reset rod in the present application.

[0043] In the drawings, the components represented by each reference numeral are listed as follows:

[0044] 10, base frame; 11, damping shock column; 12, top frame; 13, screening barrel; 14, outlet; 15, bracket; 16, feeding channel; 17, baffle; 18, electric push rod; 20, quick release assembly; 21, screen plate; 22, positioning rod; 23, first spring; 24, push rod; 25, second spring; 26, reset rod; 27, lifting plate; 30, driving assembly; 31, split rod; 32, motor; 33, chain; 34, gear ring; 35, linkage rod; 36, mounting plate; 37, hydraulic rod; 40, auxiliary assembly; 41, scraper; 42, impact rod; 43, worm gear; 44, adapter ring; 45, infrared sensor; 46, shielding ring. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0046] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific embodiments described herein without departing from the scope of the present application. Accordingly, the present application is not limited to the specific embodiments disclosed below.

[0047] Secondly, "one embodiment" or "an embodiment" referred to herein means that a specific feature, structure, or characteristic described can be included in at least one implementation of the present application. "In a preferred embodiment" appearing in different places in the specification does not mean the same embodiment, nor does it mean an embodiment that is separate from or mutually exclusive with other embodiments.

[0048] Thirdly, the application is described in detail in combination with the schematic diagram, in the detailed description of the embodiments of the application, for the convenience of description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the application here. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0049] Please refer to the attached Figures 1 to 4 , Figure 7 , Figures 11 to 15 As shown in the embodiment, a mixing and screening device for polishing powder is provided, comprising:

[0050] A chassis 10 is provided with a screening barrel 13, and a support 15 and a discharging channel 16 are installed in the inner cavity of the screening barrel 13;

[0051] A quick release assembly 20 is provided with a screen plate 21, which is arranged on the support 15, and the inner cavity of the screen plate 21 is slidably connected with a positioning rod 22, which extends into the support 15, and the inner cavity of the support 15 is provided with a reset rod 26, which is in contact with the positioning rod 22, and the inner cavity of the support 15 is slidably connected with a lifting plate 27;

[0052] A driving assembly 30 is provided with a split rod 31, which is arranged in the inner cavity of the support 15, and the inner cavity of the split rod 31 is slidably connected with a linkage rod 35, and the lower end of the linkage rod 35 is provided with a hydraulic rod 37;

[0053] An auxiliary assembly 40 is provided with a scraper 41, which is connected to the split rod 31, and the split rod 31 is rotatably connected with a striking rod 42 through a ball bearing, and the scraper 41 and the striking rod 42 are arranged on the upper and lower sides of the screen plate 21, respectively;

[0054] Among them, by adjusting the height of the linkage rod 35 to trigger three states, the first state: the split rod 31 rotates by the driving of the linkage rod 35, driving the scraper 41 and the striking rod 42 to rotate;

[0055] The second state: the linkage rod 35 rises to the middle position, controlling the opening of the discharging channel 16;

[0056] The third state: the linkage rod 35 rises to the top end, driving the lifting plate 27 to rise, and driving the reset rod 26 to push the positioning rod 22 back into the inner cavity of the screen plate 21.

[0057] It should be noted that the inner cavity of the screening barrel 13 is provided with a slope at the lower end, which is convenient for discharging.

[0058] Preferably, in order to ensure the normal operation of the device, three groups of receiving assemblies should be placed at the lower end of the screening barrel 13 for receiving the three kinds of powder screened out, so as to avoid the mixing of the powder after discharging, which affects the screening effect.

[0059] In this embodiment, the screen plate 21 is placed in the screening barrel 13 and placed on the support 15 when in use, at this time the quick-release assembly 20 pushes the positioning rod 22 to move, so that the positioning rod 22 is inserted into the support 15, and the reset rod 26 is pushed into the inner cavity of the support 15, thereby completing the installation and fixation of the screen plate 21, then the powder is input into the screening barrel 13, the driving assembly 30 drives the split rods 31 to rotate, and the three split rods 31 rotate simultaneously through the linkage rod 35, thereby driving the scraper 41 and the impact rod 42 to rotate, when the impact rod 42 rotates, the auxiliary assembly 40 is used to realize self-rotation, and the lower end of the screen plate 21 is continuously impacted, so that the screen plate 21 vibrates, thereby improving the screening effect, if the powder needs to be discharged, the hydraulic rod 37 drives the linkage rod 35 to rise, triggers the auxiliary assembly 40, so that the inlet of the discharge channel 16 is opened, and then the screened powder can be pushed into the discharge channel 16 through the scraper 41 and discharged, and when the screen plate 21 needs to be disassembled, the linkage rod 35 continues to rise until it contacts with the lifting plate 27 and pushes the lifting plate 27 to rise, so that the lifting plate 27 pushes the reset rod 26 and the positioning rod 22 to reset, thereby releasing the limiting and fixation of the screen plate 21, so that the screen plate 21 can be disassembled, thereby facilitating disassembly, assembly and maintenance.

[0060] Secondly, referring again to Figures 1 to 6 , the upper end of the base frame 10 is fixedly connected with four groups of damping shock columns 11, the upper end of each of the four groups of damping shock columns 11 is fixedly connected with a top frame 12, the screening barrel 13 is fixedly installed at the middle part of the top frame 12, and the lower end of the screening barrel 13 is provided with three groups of outlets 14, two groups of the outlets 14 are communicated with the discharge channels 16, and the other group of the outlet 14 is communicated with the bottom end of the inner cavity of the screening barrel 13.

[0061] The discharge channel 16 is provided with two groups, and the inlets of the upper ends of the two groups of discharge channels 16 are parallel to the top surface of the two groups of supports 15, respectively, and the inner cavities of the two groups of discharge channels 16 are all rotatably connected with a baffle 17 through a rotating shaft, the lower end of the baffle 17 is rotatably connected with an electric push rod 18 through a rotating shaft, and the lower end of the electric push rod 18 is rotatably connected in the inner cavity of the discharge channel 16.

[0062] It should be noted that the upper end of the baffle 17 is provided with a convex plate, and the height of the upper end of the convex plate is parallel to the inlet of the upper end of the discharge channel 16, so as to avoid the formation of a groove at the inlet of the discharge channel 16, and to prevent the powder from being accumulated in the groove;

[0063] The outer edge width of the baffle 17 is smaller than the width of the inner cavity of the discharge channel 16, so as to avoid that the baffle 17 still blocks the inner cavity of the discharge channel 16 after rotating downward, thereby affecting the discharging.

[0064] The upper end of the screening barrel 13 is reserved with a cover plate and a feeding port, the cover plate can be removed to maintain the internal structure of the screening barrel 13 when in use, and the powder can be conveyed through the feeding port.

[0065] In this embodiment, the powder can be input into the screening barrel 13 through the feeding port when needed, and the screened powder can be discharged through the extension and retraction of the electric push rod 18 to drive the baffle 17 to rotate downward, thereby opening the inlet of the discharging channel 16, so that the powder can be discharged through the discharging channel 16 and the outlet 14.

[0066] Secondly, please refer again to Figures 6 to 8 , Figure 12 , Figures 14 to 15 , the sieve plate 21 is provided with two groups, each group is provided with four pieces, which are uniformly distributed on the two groups of supports 15, and the sieve plate 21 is a quarter circular structure, the inner cavities of the two sides are slidably connected with positioning rods 22, square grooves are formed in the inner cavities of the sieve plate 21 at the positions of the outer circles of the positioning rods 22, and first springs 23 are fixedly connected in the grooves, and the other ends of the first springs 23 are fixedly connected to the outer circles of the middle sections of the positioning rods 22;

[0067] The inner wall of the screening barrel 13 is provided with a plurality of hole grooves, the quick-release assembly 20 further includes a push rod 24, the push rod 24 is slidably connected in the hole grooves, one end of the push rod 24 close to the inner cavities of the hole grooves is fixedly connected with a second spring 25, the other end of the second spring 25 is fixedly connected in the hole grooves, and one end of the push rod 24 extending out of the hole grooves is movably inserted into the inner cavities of the sieve plate 21 and is in contact with one end of the positioning rod 22 close to the outer side of the screening barrel 13, the inner cavities of the supports 15 are slidably connected with reset rods 26, one end of the reset rods 26 close to the inner cavities of the supports 15 extends out of the inner cavities of the supports 15, and the other end of the reset rods 26 away from the inner cavities of the supports 15 is in contact with the other end of the positioning rod 22, and a lifting plate 27 is slidably connected in the inner cavities of the supports 15 and is below the reset rods 26.

[0068] It should be noted that the lower half of the contact end of the positioning rod 22 and the reset rod 26 is provided with a slope, which is designed to enable the positioning rod 22 to be squeezed into the inner cavity of the sieve plate 21 when the sieve plate 21 moves downward, and the positioning rod 22 can be inserted into the support 15 and in contact with the reset rod 26 only when the hole groove of the sieve plate 21 is aligned with the reset rod 26;

[0069] The lower half of the end of the reset rod 26 extending into the inner cavity of the support 15 is provided with a slope, and the upper end of the lifting plate 27 is also provided with a corresponding slope, which is designed to enable the reset rod 26 to be reset by the slope when the lifting plate 27 rises to the top end, thereby pushing the positioning rod 22 back into the inner cavity of the sieve plate 21, so that the sieve plate 21 is unlocked by the positioning rod 22 and can be disassembled;

[0070] The upper half of the contact end of the push rod 24 and the positioning rod 22 is provided with a slope, which is designed to enable the push rod 24 to be retracted into the inner cavity of the screening barrel 13 by the pushing force generated by the slope during the process of the sieve plate 21 descending, and only when the sieve plate 21 is installed can the push rod 24 be aligned with the hole groove of the outer circle of the sieve plate 21 and inserted into the hole groove to be in contact with the positioning rod 22, thereby achieving the locking of the sieve plate 21.

[0071] The pushing force of the second spring 25 is greater than that of the first spring 23, which is designed to enable the pushing rod 24 to push the first spring 23 to stretch after being inserted into the positioning rod 22, so as to move the positioning rod 22 and insert it into the support 15, push the reset rod 26 into the inner cavity of the support 15 to complete the locking process;

[0072] The two ends of the positioning rod 22 are adapted to the outer edge surface of the screen plate 21, which is designed to enable the positioning rod 22 to lock the screen plate 21 once it moves in the support 15, and only when the positioning rod 22 is completely withdrawn from the inner cavity of the screen plate 21 can the locking of the screen plate 21 be released;

[0073] Here, to ensure that the positioning rod 22 can be completely withdrawn from the inner cavity of the screen plate 21, the two ends of the reset rod 26 and the outer end of the pushing rod 24 are also adapted to the inner and outer side surfaces of the support 15 and the inner cavity surface of the screening barrel 13, so that when the reset rod 26 is completely reset, it can push the positioning rod 22 to completely withdraw from the inner cavity of the screen plate 21;

[0074] The inner cavity wall of the support 15 is fixedly connected with a limiting strip, and the lifting plate 27 is slidingly connected to the outer circle of the limiting strip, which is designed to enable the lifting plate 27 to only slide up and down in the inner cavity of the support 15 and cannot be rotated together with the linkage rod 35, thereby ensuring stability.

[0075] In this embodiment, when in use, the screen plate 21 is placed above the support 15 and pressed downward to be inserted into the support 15. During the pressing process, the pushing rod 24 is moved inward due to the extrusion of the outer edge of the screen plate 21, and the second spring 25 is compressed under stress. When the hole groove of the screen plate 21 is aligned with the pushing rod 24, the second spring 25 pushes the pushing rod 24 to pop out, inserts into the hole groove and contacts with the positioning rod 22. At this time, the first spring 23 is stretched under stress, which pushes the positioning rod 22 to move towards the support 15 until the positioning rod 22 extends into the support 15. Meanwhile, the other end of the positioning rod 22 pushes the reset rod 26 to enter the inner cavity of the support 15, thereby completing the fixation of the screen plate 21. When it is necessary to disassemble the screen plate 21, the lifting plate 27 is driven to rise. At this time, the lifting plate 27 pushes the slope at the bottom end of the reset rod 26 by using the slope on the top surface, so that the reset rod 26 moves to the outside of the support 15 until the reset rod 26 is completely reset and pushes the positioning rod 22 to withdraw from the inner cavity of the screen plate 21. At the same time, the pushing rod 24 is also completely withdrawn from the inner cavity of the screening barrel 13, thereby releasing the locking of the screen plate 21. Then, the screen plate 21 can be taken off from the support 15, thereby achieving disassembly.

[0076] Secondly, please refer to Figures 9 to 12The three groups of split rods 31 are independently arranged, the upper end left side of the top frame 12 is fixedly installed with a motor 32, the output shaft of the motor 32 penetrates the top frame 12 and is engaged with a chain 33 through a chain wheel, the lower end of the split rod 31 located at the lower end of the screening barrel 13 is arranged outside the screening barrel 13 and is fixedly connected with a gear ring 34, and the right end inner ring of the chain 33 is engaged with the outer ring of the gear ring 34.

[0077] The inner cavity of the split rod 31 is slidably connected with a linkage rod 35, the linkage rod 35 is slidably connected in the inner cavities of the three groups of split rods 31 and penetrates the two groups of supports 15, the lower end of the linkage rod 35 extends out of the split rod 31 and is fixedly connected with a mounting plate 36, and the lower end of the mounting plate 36 is rotatably connected with the output end of a hydraulic rod 37 through a ball bearing.

[0078] It should be noted that the three groups of split rods 31 are rotatably connected with the upper and lower sides of the screening barrel 13 and between the two groups of supports 15 through ball bearings respectively, and the inner cavities of the three groups of split rods 31 are all provided with hexagonal grooves, and the linkage rod 35 is also a hexagonal rod, so that the three groups of split rods 31 can rotate simultaneously through the series connection of the linkage rod 35;

[0079] The position of the linkage rod 35 located in the inner ring of the lifting plate 27 is a circular long rod, and the diameter of the long rod is smaller than the inner diameter of the lifting plate 27, so that the linkage rod 35 can slide up and down in the inner ring of the lifting plate 27, avoiding the influence of the lifting plate 27 on the movement of the linkage rod 35.

[0080] In this embodiment, when in use, the motor 32 drives the chain 33 to rotate, the chain 33 drives the lower split rod 31 to rotate through the engagement of the gear ring 34, and the lower split rod 31 drives the two groups of upper split rods 31 to rotate simultaneously through the series connection of the linkage rod 35, thereby realizing the synchronous rotation of the three groups of split rods 31.

[0081] Please refer to Figures 12 to 15 The scraper 41 is provided with two groups, which are respectively installed at the bottom end outer rings of the upper and middle split rods 31, and each group is provided with three, which are evenly distributed, the lower end of the scraper 41 is in contact with the upper end surface of the sieve plate 21, the impact rod 42 is also provided with two groups, which are respectively installed at the upper end outer rings of the middle and lower split rods 31, and each group is provided with three, which are evenly distributed, the outer ring of the impact rod 42 is in contact with the lower end surface of the sieve plate 21, the auxiliary assembly 40 further comprises a worm gear 43, the worm gear 43 is fixedly installed on the outer ring of the impact rod 42, the lower end inner ring of the worm gear 43 is engaged with the lower end inner ring of an adapter ring 44 fixedly connected with the inner ring of the support 15;

[0082] The linkage rod 35 is fixedly installed with a shielding ring 46 below the lifting plate 27, and the outer diameter of the shielding ring 46 is greater than the inner diameter of the lifting plate 27;

[0083] The inner cavity upper end of the split rod 31 located in the middle and lower part is fixedly installed with an infrared sensor 45, and the infrared sensor 45 is arranged above the shielding ring 46.

[0084] It should be noted that the lower end of the scraper 41 is provided with an inclined scraper, and the scraper 41 is an arc-shaped structure, and the end point of the arc-shaped structure is located at the inlet of the discharge channel 16, which is designed to scrape the powder adhering to the top of the sieve plate 21 by the scraper, and push the powder into the discharge channel 16 by the arc-shaped structure;

[0085] The outer ring of the impact rod 42 is provided with a plurality of rubber rods, which is designed to continuously impact the lower part of the sieve plate 21, so that the sieve plate 21 vibrates, thereby improving the efficiency and effect of screening;

[0086] The lower end of the adapter ring 44 is provided with a tooth groove matched with the worm gear 43, which is designed to limit the rotation of the worm gear 43 outside the adapter ring 44, so that the worm gear 43 and the impact rod 42 can realize self-rotation;

[0087] The infrared sensor 45 is divided into a receiving end and a transmitting end. Under normal conditions, the receiving end can receive the signal emitted by the transmitting end. When the shielding ring 46 rises to a certain height, it will be located between the receiving end and the transmitting end, thereby shielding the signal and issuing an instruction;

[0088] The infrared sensor 45 is a structure for controlling the opening and closing of the electric push rod 18. In order to ensure the normal use of the infrared sensor 45, a contact power supply electric slip ring should be arranged between the bracket 15 and the split rod 31, and the signal of the infrared sensor 45 is transmitted to the electric push rod 18 through WIFI, Bluetooth and other wireless signal transmission technologies.

[0089] Preferably, the scraper 41 and the impact rod 42 are three groups, and the sieve plate 21 is four groups, which is designed to adjust the position of the scraper 41 and the impact rod 42 to leave a mounting position of one group of sieve plates 21, so as to avoid the obstruction of the scraper 41 and the impact rod 42, and affect the installation of the sieve plate 21.

[0090] In this embodiment, the time-sharing body rod 31 drives the scraper 41 and the impact rod 42 to rotate through the linkage rod 35. During the rotation of the scraper 41, the inclined scraper at the lower end thereof will adhere to the upper end surface of the sieve plate 21, and the powder adhering to the sieve plate 21 will be scraped and stirred, facilitating the screening. When discharging the powder, the arc-shaped structure can guide the powder to the inlet of the discharge channel 16, facilitating the discharge of the powder. At the same time, when the impact rod 42 rotates, the worm gear 43 will roll at the lower end of the adapter ring 44, and the impact rod 42 will rotate through the adapter ring 44. The rubber rod at the outer circle of the impact rod 42 will continuously impact the lower end of the sieve plate 21, so that the sieve plate 21 generates high-frequency vibration, assisting the screening of the powder. In addition, when the powder needs to be discharged, the hydraulic rod 37 will push the mounting plate 36 and the linkage rod 35 to rise. When reaching a certain height, the second state will be triggered. At this time, the shielding ring 46 will rise to the receiving end and the transmitting end of the infrared sensor 45, shielding the signal. At this time, the infrared sensor 45 will issue an instruction to control the electric push rod 18 to start, drive the baffle 17 to rotate downward, open the inlet of the discharge channel 16, so that the screened powder can be smoothly discharged through the discharge channel 16. When the linkage rod 35 continues to rise to the top end, the third state will be triggered. At this time, the shielding ring 46 will push the lifting plate 27 to rise. The lifting plate 27 will reset the reset rod 26 during the rising process, and the locking of the sieve plate 21 will be released. At this time, the sieve plate 21 can be taken off from the support 15, achieving the disassembly.

[0091] The working principle of the present application is as follows: when in use, the sieve plate 21 is placed above the support 15, and the sieve plate 21 is inserted into the support 15 by pressing down, when the hole groove of the sieve plate 21 is aligned with the push rod 24, the second spring 25 pushes the push rod 24 to pop out, the inserted hole groove contacts the positioning rod 22, and the positioning rod 22 is pushed to extend into the support 15, at the same time, the positioning rod 22 pushes the reset rod 26 into the inner cavity of the support 15, and the fixing of the sieve plate 21 is completed. Then the powder is input into the screening barrel 13, the motor 32 drives the chain 33 and the lower split rod 31 to rotate, and the lower split rod 31 drives the upper two groups of split rods 31 to rotate at the same time through the series connection of the linkage rod 35, and drives the scraper 41 and the impact rod 42 to rotate, assisting the screening of the powder. At the same time, when the impact rod 42 rotates, the worm gear 43 will roll and rotate at the lower end of the matching ring 44, and constantly impact the lower end of the sieve plate 21, so that the sieve plate 21 vibrates and assists the screening. In addition, when the powder needs to be discharged, the hydraulic rod 37 pushes the mounting plate 36 and the linkage rod 35 to rise, and after reaching a certain height, the second state is triggered, at this time the shielding ring 46 rises to the receiving end and the transmitting end of the infrared sensor 45, and blocks the signal, at this time the infrared sensor 45 sends a command to control the electric push rod 18 to start, drives the baffle 17 to rotate downward, opens the inlet of the discharge channel 16, so that the screened powder can be smoothly discharged through the discharge channel 16. When the linkage rod 35 continues to rise to the top end, the third state is triggered, at this time the shielding ring 46 pushes the lifting plate 27 to rise, the lifting plate 27 pushes the reset rod 26 to reset in the rising process, and the positioning rod 22 is pushed back into the inner cavity of the sieve plate 21, and the push rod 24 is also completely retracted into the inner cavity of the screening barrel 13, so that the locking of the sieve plate 21 can be released, at this time the sieve plate 21 can be taken off from the support 15, and the disassembly is realized.

[0092] The above is only the preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as no special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A polishing powder mixing and screening apparatus, characterized by: The utility model relates to a kind of screening device, including: Chassis is provided with screening bucket, the inner chamber of screening bucket is equipped with support and discharging channel; Quick-release assembly includes screen plate, screen plate is arranged on support, and the inner chamber of screen plate is slidably connected with positioning rod, positioning rod extends into support, and the inner chamber of support is equipped with reset rod, reset rod is in contact with positioning rod, the inner chamber of support is slidably connected with lifting plate; Drive assembly includes split rod, split rod is arranged in the inner chamber of support, and the inner chamber of split rod is slidably connected with linkage rod, the lower end of linkage rod is equipped with hydraulic rod; Auxiliary assembly includes scraper, scraper is connected on split rod, split rod is rotatably connected with impact rod, scraper and impact rod are arranged on the upper and lower sides of screen plate respectively; Wherein, by adjusting the height of linkage rod triggers three states, first state: split rod rotates by the drive of linkage rod, drives scraper and impact rod to rotate; Second state: linkage rod rises to middle position, controls discharging channel to open; Third state: linkage rod rises to top end, drives lifting plate to rise, and drives reset rod to push positioning rod back into the inner chamber of screen plate; Screen plate is provided with two groups, each group is provided with four pieces, evenly distributed on two groups of support, and screen plate is quarter circular structure, the inner chamber of both sides is slidably connected with positioning rod, square groove is opened in the position of outer circle of positioning rod in the inner chamber of screen plate, and first spring is fixedly connected in groove, the other end of first spring is fixedly connected in the outer circle of middle section of positioning rod; The inner wall of screening bucket is opened with multiple groups of hole grooves, quick-release assembly further includes push rod, push rod is slidably connected in hole groove, and the end of push rod close to the inner chamber of hole groove is fixedly connected with second spring, the other end of second spring is fixedly connected in hole groove, and the end of push rod extending out of hole groove is movably inserted in the inner chamber of screen plate, and is in contact with the end of positioning rod close to the outer side of screening bucket, the inner chamber of support is slidably connected with reset rod, and the end of reset rod close to the inner chamber of support extends out of the inner chamber of support, and the other end of reset rod is in contact with the other end of positioning rod, lifting plate is slidably connected in the inner chamber of support, and is below reset rod.

2. The polishing powder mixing and screening apparatus according to claim 1, wherein: The upper end of chassis is fixedly connected with four groups of damping shock columns, the upper end of four groups of damping shock columns is fixedly connected with top frame, screening bucket is fixedly installed in the middle of top frame, and three groups of outlets are opened in the lower end of screening bucket, two groups of outlets are communicated with discharging channel, and the other group of outlet is communicated with the bottom end of the inner chamber of screening bucket.

3. The polishing powder mixing and screening apparatus of claim 1, wherein: Discharging channel is provided with two groups, and the inlet of the upper end of two groups of discharging channel is respectively parallel with the top surface height of two groups of support, the inner chamber of two groups of discharging channel is rotatably connected with baffle, the lower end of baffle is rotatably connected with electric push rod, and the lower end of electric push rod is rotatably connected in the inner chamber of discharging channel.

4. The polishing powder mixing and screening apparatus of claim 1, wherein: Split rod is provided with three groups, and is arranged between the lower end of screening bucket, two groups of support and the upper end support and the upper end of screening bucket, and three groups of split rod are independently arranged, the upper end left side of top frame is fixedly installed with motor, the output shaft of motor penetrates top frame and is engaged with chain, the lower end of split rod located in the lower end of screening bucket is placed outside screening bucket, and is fixedly connected with gear ring, and the right end inner circle of chain is engaged with the outer circle of gear ring.

5. The polishing powder mixing and screening apparatus of claim 4, wherein: The inner cavity of the split rod is slidably connected with a linkage rod, the linkage rod is slidably connected in the inner cavities of the three split rods and penetrates through the two groups of supports, the lower end of the linkage rod extends out of the split rod and is fixedly connected with a mounting plate, and the lower end of the mounting plate is rotatably connected on the output end of the hydraulic rod.

6. The polishing powder mixing and screening apparatus of claim 1, wherein: The scraper is provided with two groups, which are respectively installed on the bottom outer circle of the split rods in the upper part and the middle part, and each group is provided with three evenly distributed scrapers, the lower end of each scraper is contactingly connected on the upper end surface of the sieve plate, the impact rod is also provided with two groups, which are respectively installed on the upper end outer circle of the split rods in the middle part and the lower part, and each group is provided with three evenly distributed impact rods, the outer circle of each impact rod is contactingly connected on the lower end surface of the sieve plate, and the auxiliary assembly further comprises a worm gear, the worm gear is fixedly installed on the outer circle of the impact rod, the lower end inner circle of the support is fixedly connected with an adapter ring, and the outer circle of the worm gear is engaged in the lower end inner circle of the adapter ring.

7. The polishing powder mixing and screening apparatus of claim 5, wherein: The linkage rod is fixedly installed at a position below the lifting plate and provided with a shielding ring, and the outer diameter of the shielding ring is greater than the inner diameter of the lifting plate.

8. The polishing powder mixing and screening apparatus of claim 7, wherein: The inner cavities of the split rods in the middle part and the lower part are fixedly installed with infrared sensors at the upper end, and the infrared sensors are arranged at a position above the shielding ring.

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