Screening device for grinding wheel raw material feeding

Abstract

The screening device for grinding wheel raw material feeding comprises a machining box and a screening hopper arranged at the feeding end of the machining box, the top of the machining box is communicated with a feeding hopper, and the screening hopper is installed in the feeding hopper. According to the grinding wheel raw material screening device, the screening hopper, the material collecting box, the crushing box and the material guiding inclined cylinder are adopted to form the screening device for grinding wheel raw materials in the feeding stage, the two material guiding plates arranged on the inner wall of the screening hopper enable the grinding wheel raw materials to be discharged in the middle, and the grinding wheel raw materials meeting the requirement for the particle size of the screen mesh rapidly enter the working box under the action of the two limiting strips; according to the grinding wheel raw material screening device, grinding wheel raw materials which do not meet the requirement for the particle size of a screen are guided into the crushing box to be crushed under the action of the material guiding inclined cylinder, and finally crushed grinding wheel raw materials fall into the material collecting box under the action of the discharging nozzle till the finally-added grinding wheel raw materials meet the machining requirement. Feeding screening and raw material crushing are integrated, so that grinding wheel raw material feeding according to the particle size requirement is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a screening device for feeding grinding wheel raw materials. Background Art

[0002] The raw material of the grinding wheel is mainly white corundum. In order to ensure the uniformity of the density of the finished grinding wheel, there are certain requirements on the size of the raw material particles. Therefore, a screening device is required during the feeding stage of the grinding wheel raw material.

[0003] After searching, publication number CN220215037U discloses a screening device for resin grinding wheel production, including a box body, a feed port and a discharge barrel, a crushing assembly is arranged at the top inner side of the box body, a material guide assembly is arranged at the bottom end of the crushing assembly, and a connecting shaft at one end of the crushing assembly is connected and fixed to one end of a first connecting rod, the other end of the first connecting rod is connected and fixed to the output shaft of a servo motor through a coupling, and a transmission assembly is arranged on the first connecting rod, and a screening assembly is arranged at the bottom end of the transmission assembly, the screening assembly includes a crank turntable, a crank turnbar, a third connecting rod, a filter frame, a limit slide, a slide rail, a first through groove and a second through groove, and by arranging the screening assembly, the raw materials for resin grinding wheel production can be screened to obtain high-quality production raw materials, and at the same time, the filter frame can be conveniently disassembled and assembled, which makes it convenient to disassemble and clean the filter frame and improve the screening efficiency.

[0004] However, the above-mentioned screening device and the grinding wheel processing equipment are separate structures. In actual use, the screening device occupies a large amount of space, and the grinding wheel raw material needs to circulate between the screening device and the grinding wheel processing equipment, so that this screening device still has a certain room for improvement.

[0005] To this end, a screening device for feeding grinding wheel raw materials is proposed, which has the advantages of high degree of integration of screening structure and convenient feeding of grinding wheel raw materials according to particle size demand, thereby solving the problems in the above-mentioned background technology. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a screening device for grinding wheel raw material feeding.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a screening device for feeding grinding wheel raw materials, comprising a processing box and a screening bucket arranged at its feeding end, the top of the processing box is connected with the feeding hopper, and the feeding hopper is internally installed with the screening bucket, the bottom of the screening bucket is welded with a screen, and two limit bars are symmetrically arranged on the top surface of the screen, and two guide plates are obliquely welded above the two limit bars of the screen, the lower left side of the screening bucket is connected with a guide inclined cylinder, and the guide inclined cylinder passes through the feeding hopper and is connected with a crushing box, so The crushing box has a built-in crushing assembly, and a discharge nozzle is welded to the lower side of the crushing box, a material collecting box is welded to the left side of the processing box corresponding to the discharge nozzle, a plurality of springs are arranged on the right side wall of the screening hopper, and each spring is connected to the inner wall of the feed hopper, a servo motor is fixed to the left side wall of the feed hopper by bolts, and a cam is fixed to the output end of the servo motor, a connecting rod is welded to the left side wall of the screening hopper, and one end of the connecting rod extending out of the feed hopper is fixedly connected to a contact seat, and the concave surface of the contact seat abuts against the side of the cam.

[0008] As a further description of the above technical solution: the crushing assembly is composed of two crushing rollers arranged in parallel, and a transmission motor is fixedly connected to the roller shafts of the two crushing rollers through a coupling.

[0009] As a further description of the above technical solution: a first guide strip of a T-shaped structure is welded on the frame at the top of the screening hopper, and a first guide groove of a T-shaped structure is provided on the top surface of the feed hopper corresponding to the first guide strip.

[0010] As a further description of the above technical solution: a clearance opening is opened on the left side of the feed hopper corresponding to the material guiding inclined cylinder, and the size of the clearance opening is adapted to the moving trajectory of the material guiding inclined cylinder.

[0011] As a further description of the above technical solution: a second guide bar with a T-shaped structure is welded to the bottom of the crushing box, and a second guide groove with a T-shaped cross-section is opened at the edge of the top surface of the processing box corresponding to the second guide bar.

[0012] As a further description of the above technical solution: the two material guide plates are arranged in a trumpet-shaped structure, and the two material guide plates are symmetrical about the vertical center line of the screening bucket.

[0013] As a further description of the above technical solution: the cross-sections of the two limit bars are both arc-shaped structures, and the two limit bars are symmetrical about the vertical center line of the screen.

[0014] The utility model has the following beneficial effects:

[0015] The utility model adopts a screening bucket, a material collection box, a crushing box and a guide inclined cylinder to form a screening device for grinding wheel raw materials in the feeding stage. Two guide plates arranged on the inner wall of the screening bucket make the grinding wheel raw materials be discharged in the center, and under the action of two limit bars, the grinding wheel raw materials that meet the particle size requirements of the screen mesh quickly enter the working box, and the grinding wheel raw materials that do not meet the particle size requirements of the screen mesh are introduced into the crushing box for crushing processing under the action of the guide inclined cylinder, so that the final grinding wheel raw material crushed products fall into the material collection box under the action of the discharge nozzle until the final added grinding wheel raw materials meet the processing requirements. Compared with the existing screening device for grinding wheel raw materials, the feeding screening and raw material crushing are integrated into one, so that the particle size of the grinding wheel raw materials can be fed on demand, and the processing box and the screening structure are combined into one, which significantly reduces the occupied space of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a screening device for feeding grinding wheel raw materials according to the utility model;

[0017] Figure 2 This is a bottom view of a screening bucket of a screening device for feeding grinding wheel raw materials according to the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the connection state of a material collecting box and a processing box of a screening device for feeding grinding wheel raw materials.

[0019] Legend:

[0020] 1. Processing box; 2. Feed hopper; 3. Screening hopper; 4. Material collection box; 5. Crushing box; 6. Material guide inclined cylinder; 7. Yield opening; 8. Servo motor; 9. Cam; 10. Contact seat; 11. Material guide plate; 12. Limiting strip; 13. First guide strip; 14. Spring; 15. Crushing assembly; 16. Discharge nozzle; 17. Screen; 18. Second guide strip. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] According to an embodiment of the utility model, a screening device for feeding grinding wheel raw materials is provided.

[0023] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-3As shown, a screening device for feeding grinding wheel raw materials according to an embodiment of the utility model comprises a processing box 1 and a screening bucket 3 arranged at its feeding end, the top of the processing box 1 is connected with the feeding hopper 2, and the feeding hopper 2 is internally installed with the screening bucket 3, the bottom of the screening bucket 3 is welded with a screen 17, and two limit bars 12 are symmetrically arranged on the top surface of the screen 17, and two guide plates 11 are obliquely welded above the two limit bars 12 of the screen 17, the lower left side of the screening bucket 3 is connected with a guide inclined cylinder 6, and the guide inclined cylinder 6 passes through the feeding hopper 2 and is connected with a crushing box 5, the crushing box 5 is internally installed with a crushing assembly 15, and a discharge nozzle 16 is welded on the lower side of the crushing box 5, and a material collecting box 4 is welded on the left side of the processing box 1 corresponding to the discharge nozzle 16, and a plurality of springs 14 are arranged on the right side wall of the screening bucket 3, and each spring 14 is connected to the feeding hopper. 2 is connected to the inner wall, the left side wall of the feed hopper 2 is fixed with a servo motor 8 by bolts, and a cam 9 is fixed to the output end of the servo motor 8, a connecting rod is welded to the left side wall of the screening bucket 3, and one end of the connecting rod extending out of the feed hopper 2 is fixedly connected to a contact seat 10, and the concave surface of the contact seat 10 is against the side of the cam 9. The servo motor 8 is only used in this patent, and its structure and function are not improved. For technicians in this field, its setting method, installation method and electrical connection method, as long as they are debugged and operated according to the requirements of its instruction manual, they will not be repeated here, and the servo motor 8 is provided with a matching control switch, and the installation position of the control switch is selected according to the actual use requirements, so that the operator can operate and control it, and the transmission motor of the following content is also the same;

[0024] In one embodiment, the crushing assembly 15 is composed of two crushing rollers arranged in parallel, and a transmission motor is fixedly connected to the roller shafts of the two crushing rollers through a coupling. Through the setting of the crushing assembly 15, the grinding wheel raw material that does not meet the particle size requirements of the screen 17 can be crushed to meet the particle size requirements of the screen 17. In order to allow the grinding wheel raw material that does not meet the particle size requirements of the screen 17 to enter between the two crushing rollers of the crushing assembly 15, a guide inclined plate is also welded on the inner wall of the crushing box 5.

[0025] In one embodiment, a first guide bar 13 of a T-shaped structure is welded on the frame at the top of the screening bucket 3, and a first guide groove of a T-shaped structure is provided on the top surface of the feed hopper 2 corresponding to the first guide bar 13. By setting the first guide bar 13 and the first guide groove, the screening bucket 3 can maintain the stability of its reciprocating motion.

[0026] In one embodiment, a clearance opening 7 is opened on the left side of the feed hopper 2 corresponding to the material guiding inclined cylinder 6, and the size of the clearance opening 7 is adapted to the moving trajectory of the material guiding inclined cylinder 6. The setting of the clearance opening 7 can make way for the movement of the material guiding inclined cylinder 6 to avoid collision between the material guiding inclined cylinder 6 and the feed hopper 2.

[0027] In one embodiment, a second guide bar 18 with a T-shaped structure is welded to the bottom of the crushing box 5, and a second guide groove with a T-shaped cross-section is opened at the edge of the top surface of the processing box 1 corresponding to the second guide bar 18. The second guide bar 18 and the second guide groove are arranged to maintain the stability of the movement of the crushing box 5.

[0028] In one embodiment, the two guide plates 11 are arranged in a trumpet-shaped structure, and the two guide plates 11 are symmetrical about the vertical center line of the screening bucket 3. Through the arrangement of the two guide plates 11, the grinding wheel raw material is discharged in the center.

[0029] In one embodiment, the cross-sections of the two limit bars 12 are both arc-shaped structures, and the two limit bars 12 are symmetrical about the vertical center line of the screen 17. Through the setting of the limit bars 12, the limiting effect can reduce the grinding wheel raw materials that meet the particle size requirements of the screen 17 from entering the material guide inclined cylinder 6. The grinding wheel raw materials that do not meet the particle size requirements of the screen 17 have greater kinetic energy due to their own weight and are screened by the screening bucket 3, and are easier to pass through the limit bars 12 into the material guide inclined cylinder 6.

[0030] Working principle:

[0031] When in use, first put the grinding wheel raw material into the screening bucket 3 installed inside the feed hopper 2, and start the servo motor 8 to drive the cam 9 fixed at its output end to rotate. Since the left wall of the screening bucket 3 built into the feed hopper 2 uses the contact seat 10 at the end of the connecting rod to abut against the cam 9, and the right wall of the screening bucket 3 is connected to the inner wall of the feed hopper 2 through a plurality of springs 14, as the cam 9 rotates, the contact seat 10 drives the screening bucket 3 to reciprocate in the feed hopper 2 through the connecting rod, and the plurality of springs 14 adaptively expand and contract during the reciprocating motion of the screening bucket 3 to keep the cam 9 in place. The reliability of the connection between the wheel 9 and the contact seat 10 realizes the screening of the grinding wheel raw material in the feeding stage. The two guide plates 11 arranged on the inner wall of the screening bucket 3 make the grinding wheel raw material be discharged in the center, and under the action of the two limit bars 12, the grinding wheel raw material that meets the particle size requirements of the screen 17 quickly enters the working box, and the grinding wheel raw material that does not meet the particle size requirements of the screen 17 is introduced into the crushing box 5 for crushing under the action of the guide inclined cylinder 6, so that the final grinding wheel raw material crushed falls into the material collection box 4 under the action of the discharge nozzle 16 until the final added grinding wheel raw material meets the processing requirements.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screening device for feeding grinding wheel raw materials, comprising a processing box (1) and a screening bucket (3) arranged at its feeding end, characterized in that: The top of the processing box (1) is connected to a feed hopper (2), and a screening hopper (3) is installed inside the feed hopper (2), a screen (17) is welded to the bottom of the screening hopper (3), and two limit bars (12) are symmetrically arranged on the top surface of the screen (17), and two guide plates (11) are welded obliquely above the two limit bars (12) of the screen (17), the lower left side of the screening hopper (3) is connected to a guide inclined cylinder (6), and the guide inclined cylinder (6) passes through the feed hopper (2) and is connected to a crushing box (5), a crushing assembly (15) is installed inside the crushing box (5), and the lower side of the crushing box (5) is welded There is a discharge nozzle (16), and a material collection box (4) is welded to the left side of the processing box (1) corresponding to the discharge nozzle (16). A plurality of springs (14) are arranged on the right side wall of the screening bucket (3), and each spring (14) is connected to the inner wall of the feed hopper (2). A servo motor (8) is fixedly installed on the left side wall of the feed hopper (2) by bolts, and a cam (9) is fixed to the output end of the servo motor (8). A connecting rod is welded to the left side wall of the screening bucket (3), and one end of the connecting rod extending out of the feed hopper (2) is fixedly connected to a contact seat (10), and the concave surface of the contact seat (10) abuts against the side surface of the cam (9).

2. A screening device for grinding wheel raw material feeding according to claim 1, characterized in that: The crushing assembly (15) is composed of two crushing rollers arranged in parallel, and a transmission motor is fixedly connected to the roller shafts of the two crushing rollers through a coupling.

3. A screening device for grinding wheel raw material feeding according to claim 1, characterized in that: A first guide strip (13) of a T-shaped structure is welded on the frame at the top of the screening hopper (3), and a first guide groove of a T-shaped structure is provided on the top surface of the feed hopper (2) corresponding to the first guide strip (13).

4. A screening device for grinding wheel raw material feeding according to claim 1, characterized in that: A clearance opening (7) is provided on the left side of the feed hopper (2) corresponding to the material guiding inclined cylinder (6), and the size of the clearance opening (7) is adapted to the moving track of the material guiding inclined cylinder (6).

5. A screening device for grinding wheel raw material feeding according to claim 1, characterized in that: A second guide bar (18) with a T-shaped structure is welded to the bottom of the crushing box (5), and a second guide groove with a T-shaped cross section is provided at the edge of the top surface of the processing box (1) corresponding to the second guide bar (18).

6. A screening device for grinding wheel raw material feeding according to claim 1, characterized in that: The two material guide plates (11) are arranged in a trumpet-shaped structure, and the two material guide plates (11) are symmetrical about the vertical center line of the screening bucket (3).

7. A screening device for grinding wheel raw material feeding according to claim 1, characterized in that: The cross-sections of the two limit strips (12) are both arc-shaped structures, and the two limit strips (12) are symmetrical about the vertical center line of the screen (17).

Images