Screening device for materials for manufacturing diamond grinding wheels
By designing a screening device with a fine particle screen, a feeding mechanism, and a cleaning mechanism, the problem of material separation and collection difficulties in traditional screening methods has been solved, achieving efficient separation and collection of diamond grinding wheel materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional screening methods are ineffective in separating and collecting diamond grinding wheel materials of different sizes.
A screening device including a fine particle screen, a pushing mechanism, and a cleaning mechanism was designed. The fine particle screen separates coarse particles and pushes them into the discharge chamber using the pushing mechanism. The cleaning mechanism is used to clear the screen and achieve separate collection of materials.
It achieves effective separation and separate collection of fine and coarse particles, reduces the probability of screen clogging, and improves screening efficiency.
Smart Images
Figure CN224101146U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to diamond grinding wheel processing technical field, specifically, relate to a kind of screening device for the material for making diamond grinding wheel. BACKGROUND
[0002] Diamond grinding wheel is the round consolidated abrasive made of diamond abrasive as raw material, respectively with metal powder, resin powder, ceramic and electroplated metal as binder, with through hole in the center. Due to the characteristics and advantages of diamond abrasive, diamond grinding wheel becomes the ideal first choice tool for grinding hard and brittle materials such as glass, ceramic, gem, stone and hard alloy.
[0003] The particle size of diamond abrasive is generally 80 mesh (about 180 μm), and the screening accuracy is generally required to be controlled at about ±20 μm. The traditional screening method is to use gravity, vibration and screen filter. For the screening and filtering method using screen, the inventor finds that there are the following problems: it is not convenient to separate and collect the materials of different fineness. UTILITY MODEL CONTENT
[0004] The utility model aims at overcoming the defects of prior art, and provides a screening device for the material for making diamond grinding wheel.
[0005] The utility model aims to realize the following technical scheme:
[0006] A screening device for the material for making diamond grinding wheel, comprising a frame body, a box body arranged on the frame body, and a feed pipe arranged on the top of the box body; the bottom of the box body is provided with a discharge port; a driving shaft and a fine particle screen in cylindrical structure are horizontally arranged in the box body, the driving shaft is rotatably connected with the box body, and the fine particle screen is fixedly connected with the driving shaft; the fine particle screen is provided with a feed port, and the feed port can communicate with the feed pipe during rotation of the fine particle screen; the two ends of the fine particle screen are provided with discharge cavities for discharging coarse particles, and the discharge cavities communicate with the discharge port; a pushing mechanism is arranged on the driving shaft, which is used to push the coarse particles in the fine particle screen into the two discharge cavities.
[0007] Further, in the utility model, the outer wall of the fine particle screen and the inner wall of the box have a spacing; the left end of the fine particle screen is rotatably provided with a left sealing disc, and the right end is fixedly provided with a right sealing disc; the left sealing disc is fixedly connected with the box; the driving shaft is rotatably connected with the left sealing disc; the right sealing disc is fixedly connected with the driving shaft; the outer periphery of the fine particle screen is intermittently provided with a left material blocking ring and a right material blocking ring; the diameter of the left sealing disc, the diameter of the left material blocking ring, the diameter of the right material blocking ring and the diameter of the right sealing disc are all greater than the diameter of the fine particle screen; a discharging cavity is formed between the left sealing disc and the left material blocking ring and between the right sealing disc and the right material blocking ring.
[0008] Further, in the utility model, the inner side wall of the fine particle screen is intermittently provided with two blocking rings, the cross section of the two blocking rings is triangular, and the material in the fine particle screen cannot move to the two discharging cavities through the two blocking rings under a natural state.
[0009] Further, in the utility model, the inner side wall of the fine particle screen is intermittently provided with two blocking rings, the cross section of the two blocking rings is triangular, and the material in the fine particle screen cannot move to the two discharging cavities through the two blocking rings under a natural state.
[0010] Further, in the utility model, the driving shaft is a screw rod; the pushing mechanism comprises a guide rod fixedly arranged on the left sealing disc, a nut threadedly connected with the driving shaft, and a pushing piece arranged on the nut; the central axis of the guide rod is parallel to and not collinear with the central axis of the driving shaft; the nut is slidably connected with the guide rod; and the pushing piece is always located inside the fine particle screen.
[0011] Further, in the utility model, the pushing piece comprises an electric push rod arranged on the nut and an arc-shaped scraper arranged at the free end of the electric push rod; the arc-shaped scraper can push the particles in the fine particle screen to the two discharging cavities through the two blocking rings.
[0012] Further, in the utility model, the nut is provided with an air pump, and the air pump is connected with a jet pipe.
[0013] Further, in the utility model, the box is provided with a cleaning mechanism for cleaning the fine particle screen.
[0014] Further, in the utility model, the cleaning mechanism comprises a plurality of air injection nozzles which are communicated with each other and are arranged at intervals in the box body, and the air injection direction of any air injection nozzle is towards the fine particle screen.
[0015] The utility model discloses beneficial effects are:
[0016] The utility model provides a kind of screening device for the material for making diamond grinding wheel, the structural design of fine particle screen makes that the coarse particle material screened out by fine particle screen can be discharged through additional passage, the separation of fine particle material and coarse particle material is collected conveniently;Pushing mechanism installed in fine particle screen can be conveniently pushed to the coarse particle material accumulated in fine particle screen into discharge cavity and then discharge, without manual operation. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is structure schematic view of the embodiment of the utility model;
[0018] Figure 2 It is Figure 1 sectional view;
[0019] Figure 3 It is structure schematic view of the left sealing disc, right sealing disc, left material blocking ring and right material blocking ring of the embodiment of the utility model are installed on fine particle screen;
[0020] Figure 4 It is Figure 1 sectional view;
[0021] Figure 5 It is Figure 4 local enlarged view of A in;
[0022] Figure 6 It is structure schematic view of pushing mechanism of the embodiment of the utility model.
[0023] In the drawing: 1- frame body;2- box body;3- feed pipe;4- discharge port;5- driving shaft;6- fine particle screen;7- discharge cavity;8- pushing mechanism;801- guide rod;802- nut;803- electric push rod;804- arc-shaped scraper;9- left sealing disc;10- right sealing disc;11- left material blocking ring;12- right material blocking ring;13- plugging plate;14- elastic sheet;15- baffle;16- air pump;17- air injection pipe;18- air injection nozzle. DETAILED DESCRIPTION
[0024] The technical solutions of the present application will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the scope of protection of the present application.
[0025] Please refer to Figures 1-6 The present application provides a technical solution:
[0026] A screening device for material for manufacturing diamond grinding wheel, comprising a frame body 1, a box body 2 mounted on the frame body 1 and a feeding pipe 3 mounted on the top of the box body 2, and a discharge port 4 is formed in the bottom of the box body 2. In addition, a feeding hopper (not marked in the figure) is also mounted at the top end of the feeding pipe 3, which facilitates the injection of the material into the feeding pipe 3. A driving shaft 5 and a fine particle screen 6 in cylindrical structure are transversely mounted in the box body 2. Here, the transverse installation of the driving shaft 5 and the fine particle screen 6 means that after installation, the central axis of the driving shaft 5 and the central axis of the fine particle screen 6 are both parallel to the horizontal direction. The driving shaft 5 is rotatably connected with the box body 2, the fine particle screen 6 is fixedly connected with the driving shaft 5, and the central axis of the fine particle screen 6 is collinear with the central axis of the fine particle screen 6. A feeding port is formed in the middle of the outer circumferential side of the fine particle screen 6, and the feeding port can be communicated with the feeding pipe 3 during the rotation of the fine particle screen 6. Discharge cavities 7 for discharging coarse particles are designed at both ends of the fine particle screen 6, and the discharge cavities 7 are communicated with the discharge port 4.
[0027] From Figure 2 The perspective, the material falling into the fine particle screen 6 through the feeding pipe 3 and the feeding port is screened under the screening of the fine particle screen 6, and the fine particle material in the material passes through the screen hole of the fine particle screen 6 and falls out through the middle of the discharge port 4 to be collected, but at this time the coarse particle material in the material is still accumulated in the fine particle screen 6. Therefore, in order to facilitate the coarse particle material accumulated in the fine particle screen 6 to be discharged into the discharge cavities 7 first, and then discharged through different positions of the discharge port 4 (in this embodiment, the fine particle material is discharged into the middle of the discharge port 4 through the middle of the fine particle screen 6; the coarse particle material is discharged into the two ends of the discharge port 4 through the two ends of the fine particle screen 6), so as to facilitate the collection of the screened fine particle material and coarse particle material respectively, a pushing mechanism 8 is also mounted on the driving shaft 5 in this embodiment, which is used to push the coarse particle material in the fine particle screen 6 into the two discharge cavities 7.
[0028] Specifically, referring to Figure 2In the embodiment, the outer wall of the fine particle screen 6 and the inner wall of the box 2 have a gap. In the embodiment, the fine particle screen 6 in the form of a cylinder has openings at both ends, the left end of the fine particle screen 6 is rotatably provided with a left sealing disc 9, and the right end of the fine particle screen 6 is fixedly provided with a right sealing disc 10, the left sealing disc 9 is fixedly connected with the box 2, the driving shaft 5 is rotatably connected with the left sealing disc 9, and the right sealing disc 10 is fixedly connected with the driving shaft 5, so that the driving shaft 5 can drive the fine particle screen 6 to rotate in the box 2. Meanwhile, the fine particle screen 6 is provided with a plurality of passages (not marked in the figure) on the side walls located in the two discharge cavities 7, so that the coarse particle materials entering the discharge cavities 7 can fall into the discharge port 4 through the passages. However, since the outer wall of the fine particle screen 6 and the inner wall of the box 2 have a gap, the coarse particle materials pushed into the two discharge cavities 7 by the pushing mechanism 8 are easy to enter the area between the box 2 and the fine particle screen 6.
[0029] Therefore, in order to solve the above problems, with reference to Figure 2 and Figure 3 In the embodiment, the outer periphery of the fine particle screen 6 is further provided with a left material blocking ring 11 and a right material blocking ring 12 at intervals; the diameter of the left sealing disc 9, the diameter of the left material blocking ring 11, the diameter of the right material blocking ring 12 and the diameter of the right sealing disc 10 are all greater than the diameter of the fine particle screen 6, and the central axis of the left sealing disc 9, the central axis of the left material blocking ring 11, the central axis of the right material blocking ring 12 and the central axis of the right sealing disc 10 are all collinear with the central axis of the driving shaft 5. The left sealing disc 9, the left end of the fine particle screen 6, the left material blocking ring 11 and the box 2 form the left discharge cavity 7; the right sealing disc 10, the right end of the fine particle screen 6, the right material blocking ring 12 and the box 2 form the right discharge cavity 7.
[0030] With reference to Figures 2-5 , in order to realize intermittent feeding of the fine particle screen 6 (compared with general continuous feeding, intermittent feeding can reduce the filtering burden of the fine particle screen 6 on the one hand, and can also reduce the probability of clogging of the fine particle screen 6 due to too much material being injected at one time on the other hand), the feeding port in the embodiment is hingedly provided with a blocking plate 13 through a spring hinge, and the feeding pipe 3 is provided with an elastic sheet 14. From the perspective of Figure 5 , in the process of self-rotation of the fine particle screen 6, when the feeding port is not communicated with the feeding pipe 3, the blocking plate 13 blocks the feeding port; when the feeding port is communicated with the feeding pipe 3, the left end of the blocking plate 13 moves into the fine particle screen 6 under the elastic force of the elastic sheet 14, the feeding port is thereby opened, and the materials in the feeding pipe 3 can thereby be discharged into the fine particle screen 6.
[0031] With reference to Figure 2When the pushing mechanism 8 is not working, in order to prevent the material in the fine particle screen 6 from entering the discharge chambers 7 at both ends, two blocking rings 15 are also installed on the inner side wall of the fine particle screen 6 in the embodiment, and the cross sections of the two blocking rings 15 are all triangular. In this way, the material in the fine particle screen 6 cannot move to the two discharge chambers 7 respectively through the two blocking rings 15 under the natural state.
[0032] In the embodiment, the driving shaft 5 is a screw rod. Referring to Figure 2 、 Figure 4 and Figure 6 , the pushing mechanism 8 includes a guide rod 801 fixedly installed on the left sealing disc 9, a nut 802 threadedly connected with the driving shaft 5, and a pushing piece installed on the nut 802, and the central axis of the guide rod 801 is parallel to and not collinear with the central axis of the driving shaft 5; the nut 802 is in sliding connection with the guide rod 801; and the pushing piece is always located inside the fine particle screen 6. The driving shaft 5, the guide rod 801 and the nut 802 constitute a screw rod and nut mechanism in the prior art. Specifically, the pushing piece includes an electric push rod 803 installed on the nut 802 and an arc-shaped scraper 804 installed on the free end of the electric push rod 803, and the extension direction of the electric push rod 803 is perpendicular to the central axis of the driving shaft 5.
[0033] From the perspective of Figure 2 , when it is needed to discharge the coarse particle material in the fine particle screen 6, the electric push rod 803 is first elongated until the arc-shaped scraper 804 abuts against the inner wall of the fine particle screen 6. Then the driving shaft 5 is rotated to move the nut 802 leftward or rightward to push the coarse particle material to the corresponding blocking ring 15. When the arc-shaped scraper 804 moves to the blocking ring 15, the scraper continues to move, but in this process, the electric push rod 803 needs to be gradually shortened so as to move the arc-shaped scraper 804 onto the blocking ring 15, and finally push the coarse particle material into the discharge chamber 7.
[0034] In order to clear the partial blockage of the fine particle screen 6 in the process of moving the arc-shaped scraper 804, a gas pump 16 is also installed on the nut 802 in the embodiment, the gas pump 16 is connected with a gas jet pipe 17, and the gas jet direction of the gas jet pipe 17 is towards the inner wall of the fine particle screen 6. In this way, the screen hole can be cleared under the impact of the gas with a certain pressure.
[0035] After the fine particle screen 6 is used, in order to facilitate the large-area clearing of the fine particle screen 6, a cleaning mechanism for clearing the fine particle screen 6 is also installed in the box body 2 in the embodiment.
[0036] Specifically, referring to Figure 2 and Figure 3The cleaning mechanism in the embodiment comprises a plurality of air nozzles 18 which are in communication with each other and are installed at intervals in the box 2, and the air nozzles 18 are in communication with a matching air supply mechanism. In the embodiment, the plurality of air nozzles 18 are installed in a straight line array, and the arrangement direction thereof is parallel to the central axis of the fine particle screen 6, and the air jet direction of any air nozzle 18 is toward the fine particle screen 6. In this way, after the screening work is completed, the fine particle screen 6 continues to rotate, and at the same time each air nozzle 18 sprays gas with a certain pressure, and the screen holes can complete the dredging under the impact of the gas.
[0037] The above only describes the preferred embodiments of the present application, and it should be understood that the present application is not limited to the forms disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concepts described herein by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims of the present application.
Claims
1. A screening device for materials used in making diamond grinding wheels, comprising a frame (1), a housing (2) mounted on the frame (1), and a feed pipe (3) mounted on the top of the housing (2); a discharge port (4) is provided at the bottom of the housing (2); characterized in that: Inside the housing (2), a drive shaft (5) and a fine particle screen (6) with a cylindrical structure are arranged horizontally. The drive shaft (5) is rotatably connected to the housing (2), and the fine particle screen (6) is fixedly connected to the drive shaft (5). The fine particle screen (6) is provided with a feed inlet, which can be connected to the feed pipe (3) during the rotation of the fine particle screen (6). Both ends of the fine particle screen (6) are provided with discharge chambers (7) for discharging coarse particles, and the discharge chambers (7) are connected to the discharge port (4). The drive shaft (5) is provided with a pushing mechanism (8), which is used to push the coarse particles in the fine particle screen (6) into the two discharge chambers (7).
2. The screening device for materials used in making diamond grinding wheels according to claim 1, characterized in that: There is a gap between the outer wall of the fine particle screen (6) and the inner wall of the box (2); a left sealing disk (9) is rotatably provided at the left end of the fine particle screen (6), and a right sealing disk (10) is fixedly provided at its right end. The left sealing disk (9) is fixedly connected to the box (2), the drive shaft (5) is rotatably connected to the left sealing disk (9), and the right sealing disk (10) is fixedly connected to the drive shaft (5); a left baffle ring (11) and a right baffle ring (12) are spaced apart on the outer periphery of the fine particle screen (6); the diameters of the left sealing disk (9), the left baffle ring (11), the right baffle ring (12), and the right sealing disk (10) are all larger than the diameter of the fine particle screen (6). A discharge cavity (7) is formed between the left sealing disk (9) and the left baffle ring (11), and between the right sealing disk (10) and the right baffle ring (12).
3. A screening device for materials used in the manufacture of diamond grinding wheels according to claim 1 or 2, characterized in that: A blocking plate (13) is hinged inside the feed inlet, and an elastic sheet (14) is provided inside the feed pipe (3). When the feed inlet is not connected to the feed pipe (3), the blocking plate (13) blocks the feed inlet. When the feed inlet is connected to the feed pipe (3), one end of the blocking plate (13) moves into the fine particle screen (6) under the elastic force of the elastic sheet (14) to open the feed inlet.
4. A screening device for materials used in the manufacture of diamond grinding wheels according to claim 2, characterized in that: Two baffle rings (15) are spaced apart on the inner side wall of the fine particle screen (6). The cross-section of the two baffle rings (15) is triangular. The material in the fine particle screen (6) cannot move to the two discharge chambers (7) through the two baffle rings (15) under natural conditions.
5. A screening device for materials used in the manufacture of diamond grinding wheels according to claim 4, characterized in that: The drive shaft (5) is a lead screw; the pushing mechanism (8) includes a guide rod (801) fixedly mounted on the left sealing disc (9), a nut (802) threadedly connected to the drive shaft (5), and a pushing component mounted on the nut (802). The central axis of the guide rod (801) is parallel to and not collinear with the central axis of the drive shaft (5); the nut (802) is slidably connected to the guide rod (801); the pushing component is always located inside the fine particle screen (6).
6. A screening device for materials used in the manufacture of diamond grinding wheels according to claim 5, characterized in that: The pusher includes an electric push rod (803) mounted on the nut (802) and an arc-shaped scraper (804) mounted on the free end of the electric push rod (803). The extension and retraction direction of the electric push rod (803) is perpendicular to the central axis of the drive shaft (5). The arc-shaped scraper (804) can push the particles in the fine particle screen (6) into the two discharge chambers (7) through the two retaining rings (15).
7. A screening device for materials used in making diamond grinding wheels according to claim 6, characterized in that: An air pump (16) is provided on the nut (802), and the air pump (16) is connected to an air jet pipe (17).
8. A screening device for materials used in the manufacture of diamond grinding wheels according to claim 2, characterized in that: The housing (2) is equipped with a cleaning mechanism for clearing blockages in the fine particle screen (6).
9. A screening device for materials used in the manufacture of diamond grinding wheels according to claim 8, characterized in that: The cleaning mechanism includes a plurality of air nozzles (18) that are interconnected and spaced apart within the housing (2), with the air jet direction of any of the air nozzles (18) directed toward the fine particle screen (6).