Multi-stage grinding device

Abstract

The utility model provides a multistage grinding device which comprises a box body supported on the ground through a supporting frame, a first arc-shaped plate is welded to the inner wall of the box body, a second arc-shaped plate symmetrical to the first arc-shaped plate is welded to the inner wall, located below the first arc-shaped plate, of the box body, and grinding assemblies are arranged on the opposite sides of the first arc-shaped plate and the second arc-shaped plate. A driving assembly used for driving the grinding assembly is arranged on the outer wall of one side of the box body, two symmetrically-arranged material guiding plates are fixedly connected to the lower surface of the top of the box body, the bottoms of the two material guiding plates are fixed to the top of a first arc-shaped plate, a pump is fixedly installed on the outer wall of the other side of the box body through an installation frame, and the output end of the pump is fixedly connected with a feeding pipe. According to the utility model, paste is repeatedly conveyed into the box body for grinding by utilizing the pump, and the paste is fully ground, so that solid particles in the paste are more uniform and fine in size, and the quality of subsequent finished products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding, in particular to a multi-stage grinding device. Background Art

[0002] When producing putty powder, various raw materials are first stirred and mixed to form a uniform paste. Then the paste needs to be ground to make the solid particle size more uniform and fine to improve the softness of the putty powder. Subsequent drying, powder making, filtering, and impurity removal steps are then carried out to make qualified putty powder.

[0003] After searching, the Chinese patent publication number CN214553866U discloses a raw material grinding device for special mortar production, including a base, a water tank is arranged at the upper end of the base, a water tank cover is arranged at the upper end of the water tank, a water pump is arranged inside the water tank cover, a water pipe is arranged at the upper end of the water pump, and a water pipe fixing seat is arranged on the water pipe; a mortar box is arranged at the upper end of the base, a mortar box cover is arranged at the upper end of the mortar box, a feed pipe is arranged on the mortar box cover, and a vacuum pump and a feed pipe fixing seat are arranged on the feed pipe; a grinding fixing seat is arranged on the upper side of the base, a grinding box is arranged inside the grinding fixing seat, a roller is arranged inside the grinding box, and a motor and a motor fixing seat are arranged on the front side of the roller.

[0004] The above patent has the following shortcomings: the device uses two rollers to squeeze the mortar raw materials against each other, thereby achieving grinding of the mortar raw materials, but it cannot cyclically grind the raw materials multiple times, resulting in incomplete grinding of the raw materials, thereby affecting the quality of subsequent finished products.

[0005] Therefore, a multi-stage grinding device is proposed. Utility Model Content

[0006] In view of this, the embodiments of the present utility model hope to provide a multi-stage grinding device to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0007] The technical solution of the embodiment of the utility model is achieved as follows: a multi-stage grinding device, including a box body supported on the ground by a support frame, an arc plate 1 is welded to the inner wall of the box body, and an arc plate 2 symmetrical to the arc plate 1 is welded to the inner wall of the box body located below the arc plate 1, a grinding assembly is arranged on the opposite side of the arc plate 1 and the arc plate 2, and a driving assembly for driving the grinding assembly is arranged on the outer wall of one side of the box body, two symmetrically arranged material guide plates are fixedly connected to the lower surface of the top of the box body, the bottoms of the two material guide plates are fixed to the top of the arc plate 1, a pump is fixedly installed on the outer wall of the other side of the box body through a mounting frame, a feed pipe is fixedly connected to the output end of the pump, the other end of the feed pipe is welded and connected to one of the guide plates, and a pumping pipe is fixedly connected to the input end of the pump, the other end of the pumping pipe is welded and connected to the bottom of the box body.

[0008] In some embodiments, the grinding assembly includes a rotating shaft and two symmetrically arranged curved abrasive plates.

[0009] In some embodiments, a connecting sleeve is welded to an outer wall of the rotating shaft, and two groups of connecting rods are welded to the outer wall of the connecting sleeve. The two groups of connecting rods are respectively fixedly connected to two curved abrasive plates.

[0010] In some embodiments, the two arc-surface abrasive plates are respectively in sliding contact with arc-shaped plate 1 and arc-shaped plate 2, and leakage holes are provided on the inner walls of arc-shaped plate 1 and arc-shaped plate 2.

[0011] In some embodiments, a feed hopper and a discharge pipe are welded to the top and bottom of the box body respectively, and a discharge valve is installed on the discharge pipe.

[0012] In some embodiments, the driving assembly includes an arc-shaped toothed plate and a connecting rod 1 rotatably connected to the outer wall of the box body through a second rotating shaft, and a gear fixed to one end of the rotating shaft. The arc-shaped toothed plate and the gear are meshed with each other, and a strip-shaped limiting groove is opened on the inner wall of the connecting rod 1.

[0013] In some embodiments, a fixing frame is fixed to the outer wall of the box body by bolts, a motor is fixedly connected to the side wall of the fixing frame, and an output end of the motor is fixedly connected to a transmission shaft by a coupling.

[0014] In some embodiments, a second connecting rod is fixed to the other end of the transmission shaft, and the second connecting rod is movably limited and engaged in the strip-shaped limiting groove through a limiting column welded on the side wall.

[0015] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0016] 1. A multi-stage grinding device, which uses a pump to repeatedly transport the paste into the box for grinding. The paste is fully ground, making the size of the solid particles in the paste more uniform and fine, thereby improving the quality of the subsequent finished product.

[0017] 2. A multi-stage grinding device, by setting two curved abrasive plates to contact and cooperate with curved plate one and curved plate two respectively, the paste can be ground twice in the box, thereby reducing the number of repeated pumping times of the pump, ensuring the grinding quality while improving the grinding efficiency.

[0018] 3. A multi-stage grinding device, by utilizing the mutual cooperation of the strip limit groove and the limit column, the connecting rod 1 and the arc-shaped tooth plate swing back and forth along the axis of the rotating shaft 2 as the rotation center, so that the gear drives the rotating shaft 1 to rotate alternately forward and reverse, thereby driving the two arc-shaped abrasive plates to swing back and forth in a cycle, thereby realizing the power integration of two-stage grinding.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is the main structural diagram of the utility model;

[0022] Figure 2 It is a front sectional view of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the grinding assembly of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0025] Figure 5 It is a cross-sectional view of the drive assembly of the utility model.

[0026] Reference numerals:

[0027] 1. Box body; 2. Support frame; 3. Drive assembly; 4. Guide plate; 5. Arc plate 1; 6. Grinding assembly; 7. Arc plate 2; 8. Discharge valve; 9. Discharge pipe; 10. Feed hopper; 11. Feed pipe; 12. Pump; 13. Extraction pipe; 14. Connecting sleeve; 15. Rotating shaft 1; 16. Arc abrasive plate; 17. Connecting rod; 18. Leakage hole; 19. Arc tooth plate; 20. Rotating shaft 2; 21. Connecting rod 1; 22. Fixed frame; 23. Motor; 24. Connecting rod 2; 25. Strip limit groove; 26. Gear; 27. Transmission shaft; 28. Limit column. DETAILED DESCRIPTION

[0028] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0029] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1:

[0032] like Figure 1-5 As shown, a multi-stage grinding device includes a box body 1 supported on the ground by a support frame 2.

[0033] An arc plate 5 is welded to the inner wall of the box body 1, and an arc plate 2 7 symmetrical to the arc plate 1 5 is welded to the inner wall of the box body 1 located below the arc plate 1 5, a grinding assembly 6 is arranged on the opposite side of the arc plate 1 5 and the outer wall of one side of the box body 1 is provided with a driving assembly 3 for driving the grinding assembly 6, two symmetrically arranged material guide plates 4 are fixedly connected to the lower surface of the top of the box body 1, and the bottoms of the two material guide plates 4 are fixed to the top of the arc plate 1 5, and a pump 12 is fixedly installed on the outer wall of the other side of the box body 1 through a mounting frame, and a feed pipe 11 is fixedly connected to the output end of the pump 12, and the other end of the feed pipe 11 is welded and connected to one of the material guide plates 4, and a pumping pipe 13 is fixedly connected to the input end of the pump 12, and the other end of the pumping pipe 13 is welded and connected to the bottom of the box body 1.

[0034] The mixed paste is transported to the box 1. After being ground by the grinding assembly 6, the paste falls to the bottom of the box 1 due to gravity. Then, the pump 12 is started to extract the paste from the box 1 through the extraction pipe 13 and then transported to the box 1 again through the feeding pipe 11 for grinding. The above steps are repeated until the paste is fully ground.

[0035] The device uses a pump 12 to repeatedly transport the paste into the box 1 for grinding. The paste is fully ground, so that the size of the solid particles in the paste is more uniform and fine, thereby improving the quality of subsequent finished products.

[0036] In this embodiment, the grinding assembly 6 includes a rotating shaft 15 and two symmetrically arranged curved abrasive plates 16. A connecting sleeve 14 is welded to the outer wall of the rotating shaft 15. Two groups of connecting rods 17 are welded to the outer wall of the connecting sleeve 14. The two groups of connecting rods 17 are fixedly connected to the two curved abrasive plates 16 respectively.

[0037] The two arc-surface abrasive plates 16 are respectively slidably contacted with the arc-shaped plate 1 5 and the arc-shaped plate 2 7 , and leak holes 18 are opened on the inner walls of the arc-shaped plate 1 5 and the arc-shaped plate 2 7 .

[0038] The paste drips through the leak hole 18 on the arc plate 1 5 to between the arc plate 1 5 and the arc plate 2 7. During this period, the arc surface abrasive plate 16 matched with the arc plate 1 5 continuously contacts and rubs with the arc plate 1 5 to grind the paste once. When the paste falls on the arc plate 2 7, the arc surface abrasive plate 16 matched with the arc plate 2 7 also continuously contacts and rubs with the arc plate 2 7 to grind the paste for the second time. Then the paste falls to the bottom of the box 1 through the leak hole 18 on the arc plate 2 7.

[0039] In the present invention, two curved abrasive plates 16 are arranged to contact and cooperate with the curved plate 1 5 and the curved plate 2 7 respectively, so that the paste can be ground twice in the box body 1, thereby reducing the number of repeated extractions by the pump 12, ensuring the grinding quality and improving the grinding efficiency.

[0040] In this embodiment, a feed hopper 10 and a discharge pipe 9 are welded to the top and bottom of the box body 1 respectively, and a discharge valve 8 is installed on the discharge pipe 9 .

[0041] The paste is conveyed into the box body 1 through the feed hopper 10, and after being fully ground, the discharge valve 8 is opened and the paste is discharged through the discharge pipe 9.

[0042] Embodiment 2:

[0043] A multi-stage grinding device, this embodiment makes the following improvements on the basis of embodiment 1, such as Figure 1-5 As shown:

[0044] The driving assembly 3 includes an arc-shaped toothed plate 19 and a connecting rod 21 rotatably connected to the outer wall of the box body 1 through a rotating shaft 20, and a gear 26 fixed to the end of the rotating shaft 15. The arc-shaped toothed plate 19 and the gear 26 are meshed with each other, and a strip-shaped limiting groove 25 is opened on the inner wall of the connecting rod 21.

[0045] A fixing frame 22 is fixed to the outer wall of the box body 1 by bolts, a motor 23 is fixedly connected to the side wall of the fixing frame 22, and a transmission shaft 27 is fixedly connected to the output end of the motor 23 by a coupling.

[0046] A second connecting rod 24 is fixed to the other end of the transmission shaft 27 , and the second connecting rod 24 is movably limited and matched in the strip-shaped limiting groove 25 through a limiting column 28 welded to the side wall.

[0047] The starting motor 23 drives the transmission shaft 27 to drive the connecting rod 24 and the limiting column 28 to rotate. Under the limitation of the strip limiting groove 25 and the limiting column 28, the connecting rod 1 21 and the arc-shaped toothed plate 19 are both reciprocated along the rotating shaft 20 as the rotation center, so that the gear 26 drives the rotating shaft 15 to rotate alternately forward and reverse, thereby driving the two arc-shaped abrasive plates 16 to swing back and forth in a cycle.

[0048] The device utilizes the mutual cooperation of the strip limit groove 25 and the limit column 28 to make the connecting rod 1 21 and the arc-shaped tooth plate 19 swing back and forth along the axis of the rotating shaft 20 as the rotation center, so that the gear 26 drives the rotating shaft 15 to rotate alternately forward and reverse, thereby driving the two arc-shaped abrasive plates 16 to swing back and forth in a cycle, thereby realizing the power integration of two-stage grinding.

[0049] Working principle: First, the motor 23 is started to drive the transmission shaft 27 to drive the connecting rod 24 and the limiting column 28 to rotate. Under the limitation of the strip limiting groove 25 and the limiting column 28, the connecting rod 1 21 and the arc-shaped toothed plate 19 are both reciprocated along the rotating shaft 20 as the rotation center, so that the gear 26 drives the rotating shaft 15 to rotate alternately forward and reverse, thereby driving the two arc-shaped abrasive plates 16 to swing back and forth in a cycle. The two arc-shaped abrasive plates 16 are in contact and friction with the arc-shaped plate 1 5 and the arc-shaped plate 2 7 respectively, and then the mixed paste is transported to the box body 1 through the feed hopper 10, and then the paste first passes through the leak hole 18 on the arc-shaped plate 1 5 and drips onto the arc-shaped plate 1 5 and the arc-shaped plate 2 7. The arc-shaped plate 16 cooperates with the arc-shaped plate 15 and rubs against the arc-shaped plate 15 during this period, so as to grind the paste once. When the paste falls onto the arc-shaped plate 27, the arc-shaped plate 16 cooperates with the arc-shaped plate 27 and rubs against the arc-shaped plate 27, so as to grind the paste twice. Then the paste falls to the bottom of the box body 1 through the leakage hole 18 on the arc-shaped plate 27. Then the pump 12 is started to extract the paste from the box body 1 through the extraction pipe 13 and then it is transported to the box body 1 for grinding again through the feeding pipe 11. The above steps are repeated until the paste is fully ground. Finally, the discharge valve 8 is opened and the discharge pipe 9 is used for unloading.

[0050] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A multi-stage grinding device, comprising a housing (1) supported on the ground by a support frame (2), characterized in that: The inner wall of the box body (1) is welded with an arc plate 1 (5), and the inner wall of the box body (1) located below the arc plate 1 (5) is welded with an arc plate 2 (7) symmetrical to the arc plate 1 (5), a grinding assembly (6) is arranged on the opposite side of the arc plate 1 (5) and the arc plate 2 (7), and a driving assembly (3) for driving the grinding assembly (6) is arranged on the outer wall of one side of the box body (1), and two symmetrically arranged material guides are fixedly connected to the lower surface of the top of the box body (1). The bottoms of the two guide plates (4) are fixed to the top of the arc-shaped plate (5); a pump (12) is fixedly mounted on the outer wall of the other side of the box body (1) through a mounting frame; the output end of the pump (12) is fixedly connected to a feed pipe (11); the other end of the feed pipe (11) is welded and connected to one of the guide plates (4); the input end of the pump (12) is fixedly connected to a pumping pipe (13); the other end of the pumping pipe (13) is welded and connected to the bottom of the box body (1).

2. A multi-stage grinding device according to claim 1, characterized in that: The grinding assembly (6) comprises a rotating shaft (15) and two symmetrically arranged curved grinding plates (16).

3. A multi-stage grinding device according to claim 2, characterized in that: A connecting sleeve (14) is welded to the outer wall of the rotating shaft (15), and two groups of connecting rods (17) are welded to the outer wall of the connecting sleeve (14). The two groups of connecting rods (17) are fixedly connected to two curved abrasive plates (16) respectively.

4. A multi-stage grinding device according to claim 3, characterized in that: The two arc-surface abrasive plates (16) are respectively slidably contacted with the arc-shaped plate 1 (5) and the arc-shaped plate 2 (7), and the inner walls of the arc-shaped plate 1 (5) and the arc-shaped plate 2 (7) are both provided with leakage holes (18).

5. A multi-stage grinding device according to claim 1, characterized in that: A feed hopper (10) and a discharge pipe (9) are respectively welded to the top and bottom of the box body (1), and a discharge valve (8) is installed on the discharge pipe (9).

6. A multi-stage grinding device according to claim 1, characterized in that: The driving assembly (3) comprises an arc-shaped toothed plate (19) and a connecting rod (21) which are rotatably connected to the outer wall of the box body (1) via a second rotating shaft (20), and a gear (26) fixed to the end of the first rotating shaft (15); the arc-shaped toothed plate (19) and the gear (26) are meshed with each other, and a strip-shaped limiting groove (25) is provided on the inner wall of the connecting rod (21).

7. A multi-stage grinding device according to claim 6, characterized in that: A fixing frame (22) is fixed to the outer wall of the box body (1) by means of bolts, a motor (23) is fixedly connected to the side wall of the fixing frame (22), and an output end of the motor (23) is fixedly connected to a transmission shaft (27) by means of a coupling.

8. A multi-stage grinding device according to claim 7, characterized in that: A second connecting rod (24) is fixed to the other end of the transmission shaft (27), and the second connecting rod (24) is movably limited and matched in the strip-shaped limiting groove (25) through a limiting column (28) welded to the side wall.

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