Uniform feeding device for grinding wheel forming

Abstract

The application relates to the technical field of grinding wheel preparation, in particular to a uniform feeding device for grinding wheel forming. The device comprises a support, the support is provided with a quantitative feeding module for periodic feeding, the support is fixedly connected with symmetrically distributed first driving members, the telescopic ends of the symmetrically distributed first driving members are jointly fixedly connected with a connecting frame, the connecting frame is provided with symmetrically distributed conical shells, the conical shells are slidingly and rotatably connected with sliding frames, and the sliding frames are fixedly connected with a plurality of flow guide frames. When the conical shells are reset, the sliding frames drive the plurality of flow guide frames to rotate, the formed material in the middle part of the grinding wheel mold is pushed to the periphery to make the formed material uniformly distributed in the grinding wheel mold, the content of the formed material accumulated in the middle part of the grinding wheel mold is reduced, the time required for scraping the formed material is reduced, and the feeding efficiency and the consistency of the forming quality are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of grinding wheel manufacturing technology, and in particular to a uniform feeding device for grinding wheel forming. Background Technology

[0002] Grinding wheels are a major type of grinding tool, made by mixing abrasive and a bonding agent, followed by pressing, drying, and firing. With the increasing demands for precision and efficiency in modern industry, the consistency of grinding wheel forming quality has become a focus of industry attention. Grinding wheel preparation typically involves multiple processes, including batching, mixing, forming, drying, and firing. The forming process involves feeding the mixed material into a grinding wheel mold and pressing it to form a grinding wheel blank with a specific shape and strength. To ensure the accuracy of the material feeding, the industry... Various automated feeding devices have been developed to achieve automatic feeding of molding materials. However, these feeding devices still have significant shortcomings in actual use: the molding material falls directly into the grinding wheel mold from above, and most of the molding material accumulates directly in the central area of ​​the grinding wheel mold, forming a local material pile, while the material at the edge of the mold is obviously insufficient. This accumulation state causes the scraper to spend a long time pushing the material piled in the center to the surrounding areas in the subsequent leveling process in order to achieve a basic flat surface. The extended leveling time not only reduces the production efficiency of the grinding wheel. Summary of the Invention

[0003] In order to overcome the shortcomings mentioned in the background art, the present invention provides a uniform feeding device for grinding wheel forming.

[0004] The technical solution is as follows: A uniform feeding device for grinding wheel forming includes a support frame, the support frame being equipped with a quantitative feeding module for periodic feeding, the support frame being fixedly connected to symmetrically distributed first driving members, the telescopic ends of the symmetrically distributed first driving members being jointly fixedly connected to a connecting frame, the connecting frame being equipped with symmetrically distributed conical shells, the symmetrically distributed conical shells being all located below the quantitative feeding module, the quantitative feeding module being used to inject material into the symmetrically distributed conical shells, the conical shells being slidably and rotatably connected to sliding frames, the sliding frames being fixedly connected to a plurality of guide frames, the connecting frame being equipped with a number of driving components equal to the number of sliding frames, the driving components being used to drive the corresponding sliding frames to rotate.

[0005] Furthermore, the drive assembly includes symmetrically distributed fixed rods, all of which are fixedly connected to the connecting frame. The sliding frame is provided with inclined grooves in the same number as the fixed rods. Each fixed rod is fixedly connected to a locking post, which slides within the corresponding inclined groove.

[0006] Furthermore, a first elastic element is provided between the sliding frame and the conical shell, and the first elastic element is used to quickly drive the sliding frame to reset.

[0007] Furthermore, a partition ring is rotatably connected to the lower side of the sliding frame, and the partition ring is used to reduce the rotational resistance of the sliding frame.

[0008] Furthermore, the conical shell and the connecting frame are rotatably connected.

[0009] Furthermore, the fixed rod is slidably connected to an impact column, and a second elastic element is fixedly connected between the impact column and the corresponding fixed rod. The impact column is in contact with the outside of the corresponding conical shell.

[0010] Furthermore, the conical shell is fixedly connected to a plurality of extrusion blocks, which are used to extrude the corresponding impact column. The connecting frame is fixedly connected to a second driving member, and the connecting frame is rotatably connected to a number of toothed rings the same as those on the conical shell. The toothed rings are fixedly connected to the corresponding conical shells. The output shaft of the second driving member is fixedly connected to a transmission gear, and all the toothed rings mesh with the transmission gear.

[0011] Furthermore, a number of flow guide blocks are fixedly connected to the bottom of the conical shell, and the flow guide blocks are used to guide the material outward.

[0012] Furthermore, the connecting frame is fixedly connected to a third driving component, and the output shaft of the third driving component is fixedly connected to a sealing plate, which is used to seal the upper side of all the conical shells.

[0013] Furthermore, the sealing plate is provided with the same number of gas injection ring shells as the conical shells, and the sealing plate is provided with several sets of vent holes. The number of sets of vent holes is the same as the number of conical shells. Each set of vent holes consists of several vent holes distributed circumferentially at equal intervals, and each set of vent holes is connected to the corresponding gas injection ring shell.

[0014] The present invention has the following advantages: 1. When the conical shell is reset, the present invention causes the sliding frame to drive several guide frames to rotate, thereby pushing the molding material in the middle of the grinding wheel mold to spread to the outer periphery, so that the molding material is evenly distributed in the grinding wheel mold, reducing the amount of molding material concentrated in the middle of the grinding wheel mold, reducing the time required for subsequent leveling of the molding material, and effectively improving the feeding efficiency and the consistency of molding quality.

[0015] 2. The intermittent impact of the impact column on the outer wall of the conical shell generates vibration, causing the molding material adhering to the inner wall of the conical shell to slide down under the action of vibration, reducing the fluctuation range of the material feeding in the grinding wheel mold and ensuring the accuracy of the single feeding amount. At the same time, the rotation of the conical shell drives the guide block to rotate synchronously, actively pushing the molding material accumulated in the middle of the grinding wheel mold to the outer periphery, realizing the pre-distribution of the molding material and improving the guiding effect of the subsequent guide frame.

[0016] 3. By sealing the top of the conical shell with a sealing plate, the gas delivered from the outside enters the conical shell along the gas injection ring and vent, and then flows downward along the inner wall to blow away the molding material adhering to the inner wall, further reducing material residue and reducing the fluctuation range of the feeding amount; at the same time, the gas is discharged from the bottom of the conical shell and disperses to the surroundings, generating a uniform airflow thrust, which accelerates the guiding speed of the molding material by the guide block. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the sliding frame of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the card post of the present invention.

[0020] Figure 4 This is a three-dimensional cross-sectional view of the sliding frame of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the flow guide block of the present invention.

[0022] Figure 6 This is a three-dimensional cross-sectional view of the sealing plate of the present invention.

[0023] Component names and serial numbers in the diagram: 1-Bracket, 2-Quantitative feeding module, 3-First driving component, 4-Connecting frame, 5-Conical shell, 6-Sliding frame, 7-Flow guide frame, 201-Fixing rod, 202-Inclined groove, 203-Clamping post, 204-First elastic component, 205-Blocking ring, 301-Impact post, 302-Second elastic component, 303-Extrusion block, 304-Second driving component, 305-Gear ring, 306-Transmission gear, 307-Flow guide block, 401-Sealing plate, 402-Third driving component, 403-Injection ring shell, 404-Ventilation hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] In existing feeding equipment, after the molding material falls from directly above the grinding wheel mold, it mostly accumulates directly in the central area of ​​the mold, forming a local material pile, while the material in the edge area is obviously insufficient. This accumulation state causes the scraper to spend a long time pushing the material in the middle to the surrounding areas in the subsequent leveling process in order to achieve a smooth surface. The increased leveling time directly reduces the production efficiency of the grinding wheel. Example 1

[0026] This embodiment provides a uniform feeding device for grinding wheel forming, used to ensure uniform distribution of the forming material.

[0027] Combination Figures 1-4 As shown, the device includes a support 1, which is equipped with a quantitative feeding module 2 for periodic feeding. The quantitative feeding module 2 consists of a storage mechanism, a quantitative mechanism, and a feeding control mechanism. Its function is to precisely control the total amount of molding material fed into the grinding wheel mold each time. The support 1 is fixedly connected to two symmetrically distributed first driving components 3, which are electric push rods. The telescopic ends of the two symmetrically distributed first driving components 3 are jointly fixedly connected to a connecting frame 4. The connecting frame 4 is equipped with two symmetrically distributed conical shells 5. In this application, the grinding wheel molds corresponding to the two conical shells 5 are connected as one piece by a connecting plate. The end of the conical shell 5 with the larger diameter is the upper side, which is used to receive the molding material and guide it into the grinding wheel mold. In this embodiment, the conical shell... The connection between 5 and the connecting frame 4 is a fixed connection, but this is limited to this embodiment. The two symmetrically distributed conical shells 5 are both located below the quantitative feeding module 2. The quantitative feeding module 2 is used to inject materials into the symmetrically distributed conical shells 5. The outside of the conical shells 5 is slidably and rotatably connected to the sliding frame 6. Several guide frames 7 are fixedly connected inside the sliding frame 6. The guide frames 7 are inclined and are used to guide the material in the middle of the grinding wheel mold to the outside, so as to reduce the time required for the leveling step in the subsequent grinding wheel preparation process. Several guide frames 7 are located below the conical shells 5 and enter the grinding wheel mold first before the corresponding conical shells 5. The connecting frame 4 is provided with the same number of drive components as the sliding frame 6. The drive components are used to drive the corresponding sliding frame 6 to rotate.

[0028] Combination Figure 3 and Figure 4As shown, the driving assembly includes two symmetrically distributed fixed rods 201, both of which are fixedly connected to the connecting frame 4. The sliding frame 6 is provided with the same number of inclined grooves 202 as the fixed rods 201. The downward inclination direction of the inclined grooves 202 is opposite to the outward inclination direction of the guide frame 7 on the corresponding sliding frame 6, so as to achieve the guiding effect of the guide frame 7 on the molding material. A locking post 203 is fixedly connected to the lower side of the fixed rod 201, and the locking post 203 is located in the corresponding inclined groove 202. The sliding mechanism is as follows: the initial locking post 203 is located at the top of the corresponding inclined groove 202. When the locking post 203 slides along the corresponding inclined groove 202, the sliding frame 6 starts to rotate. A first elastic element 204 is provided between the sliding frame 6 and the conical shell 5. The first elastic element 204 is a spring. The first elastic element 204 is used to quickly drive the sliding frame 6 to reset. A partition ring 205 is rotatably connected to the lower side of the sliding frame 6. The partition ring 205 replaces the sliding frame 6 in contact with the outer periphery of the grinding wheel mold. The partition ring 205 is used to reduce the rotational resistance of the sliding frame 6.

[0029] Working principle: When it is necessary to feed molding material into the grinding wheel mold, the grinding wheel mold is first transferred to the feeding position (the central axis of the grinding wheel mold coincides with the central axis of the corresponding conical shell 5). Then, the two symmetrically distributed first driving members 3 are activated. The telescopic ends of the two first driving members 3 jointly drive the connecting frame 4 to move downward, so that the connecting frame 4 drives the two symmetrically distributed conical shells 5 on it to move downward synchronously. The following description will focus on one conical shell 5. The conical shell 5 drives the sliding frame 6 on it to move downward synchronously. This continues until the partition ring 205 on the lower side of the sliding frame 6 contacts the corresponding grinding wheel mold. At this point, the sliding frame 6 can no longer move downward. Several guide frames 7 on the sliding frame 6 enter the corresponding grinding wheel mold. The connecting frame 4 continues to drive the conical shell 5 to move downward. The conical shell 5 moves along the sliding frame 6. The material slides downwards into the grinding wheel mold, while the first elastic element 204 is compressed. The connecting frame 4 drives the fixed rod 201 on it to continue moving downwards. The fixed rod 201 drives the locking pin 203 on it to move synchronously. The locking pin 203 slides along the corresponding inclined groove 202, causing the locking pin 203 to push the sliding frame 6 to rotate. The sliding frame 6 drives the guide frame 7 inside it to rotate synchronously. This continues until the conical shell 5 falls to a specific position (the lower side of the conical shell 5 enters the corresponding grinding wheel mold, and the lower side of the conical shell 5 does not contact the bottom of the grinding wheel mold). At this moment, the guide frame 7 is located outside the corresponding conical shell 5. Then, the two first driving elements 3 are closed, and the quantitative feeding module 2 is opened, so that the quantitative feeding module 2 injects the molding material into the conical shell 5. The molding material slides down along the conical shell 5 and falls into the corresponding grinding wheel mold.

[0030] After the molding material enters the grinding wheel mold along the conical shell 5, the two symmetrically distributed first driving members 3 are activated, causing the telescopic ends of the two first driving members 3 to drive the connecting frame 4 to reset upwards. During this process, the connecting frame 4 drives the conical shell 5 to reset, and at the same time, the first elastic member 204 gradually releases its elastic force. The connecting frame 4 drives the sliding frame 6 to rotate in the opposite direction through the fixed rod 201, the locking pin 203 on it, and the inclined groove 202. The sliding frame 6 drives several guide frames 7 inside it to rotate, causing the guide frames 7 to push the molding material in the middle of the grinding wheel mold to move outwards. This makes the molding material in the grinding wheel mold evenly distributed, reduces the amount of molding material concentrated in the middle of the grinding wheel mold, and reduces the length of subsequent leveling required for molding material, effectively improving the feeding efficiency and the consistency of molding quality. This continues until the sliding frame 6 resets relative to the conical shell 5. The connecting frame 4 drives the sliding frame 6 to reset synchronously through the fixed rod 201 and the locking pin 203. When it is necessary to inject molding material into the grinding wheel mold again, the above steps are repeated. Example 2

[0031] This embodiment provides a uniform feeding device for grinding wheel forming, which is a further improvement on the basis of Embodiment 1.

[0032] Combination Figure 2 and Figure 5 As shown, the conical shell 5 and the connecting frame 4 are rotatably connected. An impact column 301 is slidably connected to the fixed rod 201. A second elastic element 302, which is a tension spring, is fixedly connected between the impact column 301 and the corresponding fixed rod 201. The second elastic element 302 is used to drive the corresponding impact column 301 to reset. In the initial state, the impact column 301 is in contact with the outside of the corresponding conical shell 5. Several extrusion blocks 303 are fixedly connected to the conical shell 5. The extrusion blocks 303 have inclined surfaces. The inclined surfaces of the extrusion blocks 303 are used to extrude the corresponding impact column 301. The impact column 301 slides along the corresponding fixed rod 201 under the extrusion force. A second driving element 304 is fixedly connected to the connecting frame 4. The second driving element 304 is a servo motor. The motor and connecting frame 4 are rotatably connected to two toothed rings 305. The toothed rings 305 are fixedly connected to the corresponding conical shells 5. The toothed rings 305 can drive the corresponding conical shells 5 to rotate synchronously. The output shaft of the second driving member 304 is fixedly connected to a transmission gear 306. All the toothed rings 305 mesh with the transmission gear 306. The output shaft of the second driving member 304 can drive the two toothed rings 305 to rotate synchronously through the transmission gear 306. Several guide blocks 307 are fixedly connected to the bottom of the conical shells 5. The guide blocks 307 are inclined. The inclination direction of the guide blocks 307 from the inside to the outside is opposite to the rotation direction of the conical shells 5, so as to realize the function of the guide blocks 307 to guide the molding material outward, thereby improving the guiding effect of the subsequent guide frame 7.

[0033] Combination Figure 2 and Figure 6As shown, the connecting frame 4 is fixedly connected to a third driving component 402, which is a servo motor. The output shaft of the third driving component 402 is fixedly connected to a sealing plate 401. In the initial state, the sealing plate 401 does not seal the two conical shells 5, facilitating the quantitative feeding module 2 to feed material into the conical shells 5. The output shaft of the third driving component 402 drives the sealing plate 401 to rotate 90° to seal the upper openings of the two conical shells 5. The sealing plate 401 is equipped with two air injection ring shells 403. The gas ring shell 403 is connected to the external gas conveying equipment. The sealing plate 401 is provided with two sets of vent holes 404. Each set of vent holes 404 consists of several vent holes 404 distributed circumferentially at equal intervals. The vent holes 404 are inclined from top to bottom. After the sealing plate 401 blocks the two conical shells 5, the inclined direction of the vent holes 404 is towards the central axis of the conical shell 5, which facilitates the flow of gas along the inner wall of the conical shell 5. Each set of vent holes 404 is connected to the corresponding gas injection ring shell 403.

[0034] Working principle: After the quantitative feeding module 2 injects the molding material into the conical shell 5, the operator activates the second drive component 304, causing the output shaft of the second drive component 304 to drive the transmission gear 306 to rotate. The transmission gear 306 drives the two gear rings 305 to rotate, and the gear rings 305 drive the corresponding conical shell 5 to rotate synchronously. The conical shell 5 drives the external extrusion block 303 to rotate, and the extrusion block 303 rotates to extrude the corresponding impact column 301. The impact column 301 is subjected to force and slides along the corresponding fixed rod 201. At the same time, the second elastic element 302 is stretched. This continues until the extrusion block 303 separates from the impact column 301. At this moment, the second elastic element 302 drives the corresponding impact column 301 to quickly reset, causing the impact column 301 to impact the outer wall of the adjacent conical shell 5. The conical shell 5 vibrates due to the impact, causing the molding material adhering to the conical shell 5 to flow downward under the vibration force, thereby reducing the fluctuation range of the molding material in the grinding wheel mold. At the same time, the conical shell 5 drives several guide blocks 307 at the bottom to rotate synchronously, causing the guide blocks 307 to push the molding material located in the middle of the grinding wheel outward, so as to facilitate the subsequent flow guide frame 7.

[0035] At the same time as the second drive component 304 is activated, the third drive component 402 is activated simultaneously. The output shaft of the third drive component 402 drives the sealing plate 401 to rotate 90°, so that the sealing plate 401 blocks the upper opening of the two conical shells 5. Then the third drive component 402 is closed, and at the same time the external gas delivery equipment is activated, so that the gas delivery equipment blows gas into the two gas injection ring shells 403 (the gas blowing speed is slow and cannot overcome the gravity of the molding material to blow it up). The gas in the gas injection ring shell 403 enters the conical shell 5 through the corresponding several vent holes 404. The gas flows downward along the inner wall of the conical shell 5, so that the gas blows away the molding material attached to the inner wall of the conical shell 5, further reducing the amplitude of the fluctuation of the amount of molding material in the grinding wheel mold. At the same time, the gas is discharged along the lower side of the conical shell 5. After the gas is discharged through the conical shell 5, it disperses to the surroundings. During this period, a force is applied to the molding material in the middle of the grinding wheel, which accelerates the guiding speed of the guide block 307 on the molding material.

[0036] After the molding material accumulated in the middle of the grinding wheel is guided to the guiding area of ​​the guide frame 7, the second drive component 304 is turned off, the external gas conveying equipment is turned off, and the third drive component 402 is turned on, so that the output shaft of the third drive component 402 drives the sealing plate 401 to reset and rotate. After the sealing plate 401 is reset relative to the connecting frame 4, the third drive component 402 is turned off, and the reset process of the conical shell 5 is repeated. It will not be described in detail here.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A uniform feeding device for grinding wheel forming, comprising a support (1), wherein the support (1) is provided with a quantitative feeding module (2) for periodic feeding, wherein the support (1) is fixedly connected with symmetrically distributed first driving members (3), wherein the telescopic ends of the symmetrically distributed first driving members (3) are jointly fixedly connected to a connecting frame (4), wherein the connecting frame (4) is provided with symmetrically distributed conical shells (5), wherein the symmetrically distributed conical shells (5) are all located below the quantitative feeding module (2), wherein the quantitative feeding module (2) is used to inject material into the symmetrically distributed conical shells (5), characterized in that, The conical shell (5) is slidably and rotatably connected to a sliding frame (6). Several guide frames (7) are fixedly connected inside the sliding frame (6). The connecting frame (4) is provided with the same number of driving components as the sliding frame (6). The driving components are used to drive the corresponding sliding frame (6) to rotate.

2. The uniform feeding device for grinding wheel forming according to claim 1, characterized in that, The drive assembly includes symmetrically distributed fixed rods (201), all of which are fixedly connected to the connecting frame (4). The sliding frame (6) is provided with the same number of inclined grooves (202) as the fixed rods (201). The fixed rods (201) are fixedly connected to locking posts (203), which slide within the corresponding inclined grooves (202).

3. The uniform feeding device for grinding wheel forming according to claim 2, characterized in that, A first elastic element (204) is provided between the sliding frame (6) and the conical shell (5), and the first elastic element (204) is used to quickly drive the sliding frame (6) to reset.

4. The uniform feeding device for grinding wheel forming according to claim 2, characterized in that, A partition ring (205) is rotatably connected to the lower side of the sliding frame (6), and the partition ring (205) is used to reduce the rotational resistance of the sliding frame (6).

5. The uniform feeding device for grinding wheel forming according to claim 2, characterized in that, The conical shell (5) and the connecting frame (4) are rotatably connected.

6. The uniform feeding device for grinding wheel forming according to claim 5, characterized in that, The fixed rod (201) is slidably connected to the impact column (301), and the impact column (301) is fixedly connected to the corresponding fixed rod (201) by a second elastic element (302). The impact column (301) is in contact with the outside of the corresponding conical shell (5).

7. The uniform feeding device for grinding wheel forming according to claim 6, characterized in that, The conical shell (5) is fixedly connected to a plurality of extrusion blocks (303), which are used to extrude the corresponding impact column (301). The connecting frame (4) is fixedly connected to a second driving member (304). The connecting frame (4) is rotatably connected to a toothed ring (305) of the same number as the conical shell (5). The toothed ring (305) is fixedly connected to the corresponding conical shell (5). The output shaft of the second driving member (304) is fixedly connected to a transmission gear (306). All the toothed rings (305) mesh with the transmission gear (306).

8. The uniform feeding device for grinding wheel forming according to claim 7, characterized in that, The bottom of the conical shell (5) is fixedly connected with several guide blocks (307), which are used to guide materials outward.

9. A uniform feeding device for grinding wheel forming according to claim 8, characterized in that, The connecting frame (4) is fixedly connected to a third driving member (402), and the output shaft of the third driving member (402) is fixedly connected to a sealing plate (401). The sealing plate (401) is used to seal the upper side of all the conical shells (5).

10. A uniform feeding device for grinding wheel forming according to claim 9, characterized in that, The sealing plate (401) is provided with the same number of air injection ring shells (403) as the conical shells (5). The sealing plate (401) is provided with a number of sets of vent holes (404). The number of sets of vent holes (404) is the same as the number of conical shells (5). Each set of vent holes (404) consists of a number of vent holes (404) distributed circumferentially at equal intervals. Each set of vent holes (404) is connected to the corresponding air injection ring shell (403).

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