Nut batch grinding device

Abstract

The invention discloses a nut batch grinding device, and relates to the technical field of nut grinding, the nut batch grinding device comprises a frame body, the upper end of the frame body is provided with a sand blasting box body, the sand blasting box body is internally provided with a stand column, and the upper end and the lower end of the stand column are respectively provided with an upper pressing piece and a driving piece; a supporting frame is installed on the left side of the upper end of the frame body, a storage part is installed at the upper end of the supporting frame and used for containing a to-be-polished nut, a height adjusting part is installed below the supporting frame and used for adjusting the height of the storage part, and a first pushing part is installed below the storage part. A screening plate is installed on the portion, below the sand blasting box body, of the frame body, and a collecting box is installed below the screening plate. According to the nut batch grinding device, the nuts and the separation blocks are controlled to be placed in a staggered mode, upper pressing piece positioning, sand blasting grinding and driving piece discharging are conducted, the nuts fall into the collecting box after being screened through the screening plate, automatic feeding and discharging batch grinding is achieved, and the grinding effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of nut grinding, in particular to a nut batch grinding device. Background Art

[0002] In the field of mechanical manufacturing and assembly, nuts are a very common and important fastening part, and their surface quality is directly related to the connection stability, reliability, aesthetics and other performance of the entire mechanical structure. With the continuous expansion of industrial production scale and the continuous improvement of automation, the processing efficiency and quality requirements for nuts are becoming increasingly stringent.

[0003] In the patent application with the authorization announcement number CN110625458B and the authorization announcement date of 2020-09-04, and the name of "A batch grinding device and processing method for nuts for machining", the nuts are inserted into the hollow fixed column, and the motor controls the rotating block to rotate. When the rotating block rotates, it squeezes the strip plate by the sliding rod. After the strip plate is squeezed, it drives the clamping part to squeeze and fix the inner wall of the nut. During the use of the above device, when the nuts are piled together by the fixed column, due to the close fit and shielding between the nuts, during the grinding process, it is difficult for the grinding tool to directly act on the end face of the nut. Even if part of the end face can be contacted, it is impossible to ensure that the end face of each nut can be fully and accurately polished due to the unevenness of the grinding angle and force; However, as in the patent application with announcement number CN117226703A, announcement date 2023-12-15, and titled "A device for rapidly grinding the surface of a nut", the diamond sand in the grinding box and the nut shake to produce friction, and then the surface of the nut can be polished. Since the internal threads of the nut are in direct contact with the grinding sand and gravel and lack an effective isolation and protection mechanism, during the grinding process, the high-speed moving grinding sand and gravel can easily enter the internal thread area of ​​the nut. As the grinding continues, these sand and gravel will cause serious wear and damage to the threads, changing the shape, dimensional accuracy and surface quality of the threads.

[0004] Therefore, we propose a nut batch grinding device to solve the above-mentioned problems. Summary of the invention

[0005] 1. Technical problems to be solved by the invention: The object of the present invention is to provide a nut batch grinding device to solve the current market problems raised by the above background technology.

[0006] 2. Technical solution: To achieve the above object, the present invention provides the following technical solution: a nut batch grinding device, comprising a frame, a sandblasting box is installed on the upper end of the frame, a column is arranged inside the sandblasting box, and an upper pressure piece and a driving piece are respectively arranged at the upper and lower ends of the column; A support frame is installed on the left side of the upper end of the frame body, and a storage piece is installed on the upper end of the support frame, the storage piece is used to place the nuts to be polished, a height adjustment piece is installed below the support frame, the height adjustment piece is used to adjust the height of the storage piece, and a pusher 1 is installed below the storage piece, the pusher 1 pushes the nuts dropped from the storage piece into the sandblasting box; The frame is installed with a screening plate below the sandblasting box, and a collecting box is installed below the screening plate, and a storage cylinder 2 is installed at the upper right end of the frame, the interior of the storage cylinder 2 is used to store the partition, and a pushing member 2 is installed below the storage cylinder 2, and the pushing member 2 is used to push the partition dropped from the storage cylinder 2 into the sandblasting box.

[0007] Furthermore, the storage component includes a bracket located above the support frame, a storage tube is fixed to the upper end of the bracket, and the bracket is slidably arranged on the outside of the guide rod, and the guide rod is fixedly installed on the upper end of the support frame, a swivel is threadedly installed on the outer side of the storage tube, and a limiting mechanism is installed on the storage tube.

[0008] Through the above technical solution, the swivel can move up and down after rotating the swivel.

[0009] Furthermore, the limiting mechanism includes a limiting plate installed at an equal angle inside the storage tube one, and a guide rod and a movable plate are fixed to the side of the limiting plate away from the center of the storage tube one, and the guide rod and the movable plate form a fitting effect with the inner wall of the storage tube one, and a pressure spring is sleeved on the outer side of the guide rod, and the two ends of the pressure spring are respectively on the limiting plate and the storage tube one.

[0010] Through the above technical solution, when the swivel moves up and down, the limit plate can be driven to move by fitting with the movable plate.

[0011] Furthermore, the pushing member 1 includes an electric push rod 1 fixedly mounted on the support frame, a pushing plate is fixed to the output end of the electric push rod 1, an elastic telescopic member is mounted on the upper end of the pushing plate, and a baffle is mounted on the output end of the elastic telescopic member, and the upper end surface of the baffle is in contact with the lower end surface of the bracket.

[0012] Through the above technical solution, when the electric push rod 1 is started, it can drive the push plate to displace the nut, and the baffle plate blocks the discharge port of the storage tube 1 under the action of the elastic telescopic member.

[0013] Furthermore, the height adjustment member includes a threaded rod installed under the support frame through a bearing, the outer thread sleeve of the threaded rod is provided with a sliding rod, and the upper end of the sliding rod is in contact with the lower end surface of the support frame, and pulleys are rotatably installed at both front and rear ends of the sliding rod.

[0014] Through the above technical solution, when the threaded rod is started, it can drive the sliding rod to move left and right, and then drive the pulley to slide inside the sliding groove.

[0015] Furthermore, the pulley is slidably installed inside the slide groove, and the slide groove is inclinedly opened inside the front and rear sides of the bracket.

[0016] Through the above technical solution, the bracket can be driven to move up and down.

[0017] Furthermore, the pushing member 2 includes an electric push rod 2 installed on the side of the sandblasting box body, a support rod is installed at the output end of the electric push rod 2, and an electric push rod 3 is installed on the support rod, and a clamp block is fixed at the output end of the electric push rod 3, and the partition is in a shape with small upper and lower diameters and a large middle diameter.

[0018] Through the above technical solution, the electric push rod drives the clamping block to clamp the partition.

[0019] Furthermore, the upper pressure piece includes an electric push rod four fixedly mounted on the sandblasting box body, the output end of the electric push rod four is installed with a mounting plate, and a positioning rod is installed on the mounting plate, and the positioning rod and the column form a concave-convex fit, and a connecting rod is inserted between the positioning rod and the column, and at the same time, the lower end surface of the positioning rod is in contact with the upper end surface of the partition located at the uppermost end.

[0020] Through the above technical solution, when the electric push rod 4 is started, it can drive the positioning rod to be sleeved on the outer side of the column.

[0021] Furthermore, a movable rod is slidably installed inside the lower end of the column, a limiting block is fixed on the upper end side of the movable rod, and the limiting block is slidably installed inside the limiting groove, and the limiting groove is opened on the lower end side of the column, and an anti-falling block is rotatably installed on the lower end of the column, the side of the anti-falling block is inclined, and the anti-falling block and the limiting block are arranged one by one.

[0022] Through the above technical solution, the movable rod can move up and down stably below the column.

[0023] Furthermore, the driving member includes an electric push rod 5 installed at the lower end of the sandblasting box, a top pressure plate is fixed to the output end of the electric push rod 5, and an inclined driving block is installed at the end of the top pressure plate, and the driving block is slidably installed on the lower end side of the movable rod.

[0024] Through the above technical solution, after the electric push rod 5 is started, the top pressure plate can drive the movable rod to move upward through the driving block.

[0025] 3. Beneficial effects: By adopting the technical solution provided by the present invention, compared with the prior art, the nut batch grinding device of the present invention realizes automatic loading and unloading batch grinding by controlling the staggered placement of nuts and separators, positioning of the upper pressure piece, sandblasting and grinding, and unloading of the driving piece, and the falling of the material into the collection box after screening by the screening plate, thereby improving the grinding effect. The specific contents are as follows: Start the electric push rod 1 91, drive the push plate 92 to push the nut that falls from the storage tube 1 62 to the support frame 5, push the nut to be set on the upper end of the column 14, and then the nut falls on the outside of the column 14, then start the electric push rod 3 123 and the electric push rod 2 121 respectively, the output end of the electric push rod 3 123 clamps the partition block through the clamping block 124, and then the electric push rod 2 121 drives the clamped partition block to move to the column 14, and then start the electric push rod 3 123 in the reverse direction, and the partition block falls on the outside of the column 14, so that the staggered placement of the nut and the partition block is achieved by starting the electric push rod 1 91 and the electric push rod 121 respectively, so that the upper and lower end faces of the subsequent nut are polished, and the internal thread of the nut is not affected by the polishing. When the nut is installed, start the electric push rod 4 1 31. The electric push rod 131 drives the positioning rod 133 to extend into the column 14, and inserts the connecting rod 16 into the column 14, and then uses the sandblasting mechanism in the sandblasting box 2 to grind the nut. After the grinding is completed, the electric push rod 151 is started to drive the top pressure plate 152 away from the movable rod 141. Then, under the action of gravity, the limit block 142 rotates in the opposite direction without blocking the nut and the separator. The grinded nut and separator can fall down, and then fall into the corresponding collection box 4 after screening by the screening plate 3. The nuts are automatically loaded and unloaded to achieve batch grinding of the nuts, and the staggered distribution of the separators and nuts allows the end faces of the nuts to be polished, and avoids the influence of sandblasting on the threads inside the nuts, thereby improving the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall side-view stereoscopic structure of the present invention; Figure 2 It is a schematic diagram of the overall front view structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the storage tube of the present invention from a side view; Figure 4 This is a schematic diagram of the internal structure of a storage tube of the present invention; Figure 5 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 6 It is a schematic diagram of the three-dimensional structure of the sandblasting box body of the present invention from a side view; Figure 7 It is a schematic diagram of the three-dimensional structure of the column of the present invention from a side view; Figure 8 It is a schematic diagram of the side sectional structure of the limit block of the present invention.

[0027] In the figure: 1, frame; 2, sandblasting box; 3, screening plate; 4, collecting box; 5, support frame; 51, guide rod; 6, storage member; 61, bracket; 62, storage cylinder 1; 63, slide; 7, limit mechanism; 71, limit plate; 72, guide rod; 73, movable plate; 74, pressure spring; 8, swivel; 9, push member 1; 91, electric push rod 1; 92, push plate; 93, elastic telescopic member; 94, baffle; 10, height adjustment member; 101, threaded rod; 102, slide rod ; 103, pulley; 11, storage cylinder 2; 12, pusher 2; 121, electric push rod 2; 122, support rod; 123, electric push rod 3; 124, clamping block; 13, upper pressure piece; 131, electric push rod 4; 132, mounting plate; 133, positioning rod; 14, column; 141, movable rod; 142, limit block; 143, limit groove; 144, anti-slip block; 15, driving member; 151, electric push rod 5; 152, top pressure plate; 153, driving block; 16, connecting rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0029] See also Figure 1-8The present invention provides a technical solution: a nut batch grinding device, comprising a frame 1, a sandblasting box 2 is installed on the upper end of the frame 1, and a column 14 is arranged inside the sandblasting box 2, and an upper pressure piece 13 and a driving piece 15 are respectively arranged at the upper and lower ends of the column 14; a support frame 5 is installed on the left side of the upper end of the frame 1, and a storage piece 6 is installed on the upper end of the support frame 5, and the storage piece 6 is used to place the nuts to be ground, and a height adjustment piece 10 is installed below the support frame 5, and the height adjustment piece 10 is used to adjust the height of the storage piece 6, and a push piece 9 is installed below the storage piece 6, and the push piece 9 pushes the nuts dropped by the storage piece 6 into the sandblasting box 2; the frame 1 is below the sandblasting box 2 A screening plate 3 is installed, and a collecting box 4 is installed below the screening plate 3, and a storage cylinder 11 is installed on the upper right end of the frame 1, the interior of the storage cylinder 11 is used to store the partition, and a pusher 12 is installed below the storage cylinder 11, and the pusher 12 is used to push the partition dropped from the storage cylinder 11 into the sandblasting box 2; the storage member 6 includes a bracket 61 located above the support frame 5, a storage cylinder 1 62 is fixed to the upper end of the bracket 61, and the bracket 61 is slidably arranged on the outer side of the guide rod 51, and the guide rod 51 is fixedly installed on the upper end of the support frame 5, a swivel 8 is threadedly installed on the outer side of the storage cylinder 1 62, and a limiting mechanism 7 is installed on the storage cylinder 1 62; The nuts and separators are placed in the storage tube 1 62 and the storage tube 2 11 respectively, and then the nuts and separators are placed in sequence on the outside of the column 14 in the sandblasting box 2 by the pusher 1 9 and the pusher 2 12 respectively, so as to realize the automatic feeding of the nuts, and then the nuts are polished by the sandblasting mechanism in the sandblasting box 2. After the polishing is completed, the polished nuts and separators can fall down, and then fall into the corresponding collection box 4 after being screened by the screening plate 3; The limiting mechanism 7 includes a limiting plate 71 installed at an equal angle inside the storage tube 62, a guide rod 72 and a movable plate 73 are fixed to the side of the limiting plate 71 away from the center of the storage tube 62, and the guide rod 72 and the movable plate 73 form a fitting effect with the inner wall of the storage tube 62, and a pressure spring 74 is sleeved on the outer side of the guide rod 72, and the two ends of the pressure spring 74 are respectively attached to the limiting plate 71 and the storage tube 62; the pushing member 9 includes an electric push rod 91 fixedly installed on the support frame 5, a pushing plate 92 is fixed to the output end of the electric push rod 91, and an elastic telescopic member 93 is installed on the upper end of the pushing plate 92, and the output end of the elastic telescopic member 93 is installed A baffle 94 is installed, and the upper end surface of the baffle 94 is in contact with the lower end surface of the bracket 61; the height adjustment member 10 includes a threaded rod 101 installed below the support frame 5 through a bearing, the outer thread sleeve of the threaded rod 101 is provided with a slide rod 102, and the upper end of the slide rod 102 is in contact with the lower end surface of the support frame 5, and the front and rear ends of the slide rod 102 are rotatably installed with pulleys 103; the pulley 103 is slidably installed inside the slide groove 63, and the slide groove 63 is inclined and opened inside the front and rear sides of the bracket 61; the push member 12 includes an electric push rod 121 installed on the side of the sandblasting box 2, and the output end of the electric push rod 121 is installed with a support rod 122, and the support rod 1 An electric push rod 3 123 is installed on 22, and a clamping block 124 is fixed on the output end of the electric push rod 3 123, and the partition is in a shape with small upper and lower diameters and a large middle diameter; the upper pressing piece 13 includes an electric push rod 4 131 fixedly installed on the sandblasting box body 2, and a mounting plate 132 is installed on the output end of the electric push rod 4 131, and a positioning rod 133 is installed on the mounting plate 132, and the positioning rod 133 and the column 14 form a concave-convex fit, and a connecting rod 16 is inserted between the positioning rod 133 and the column 14, and at the same time, the lower end surface of the positioning rod 133 is in contact with the upper end surface of the partition located at the uppermost end; a movable rod 141 is slidably installed inside the lower end of the column 14, and the movable rod 141 is slidably installed inside the lower end of the column 14. A limiting block 142 is fixed to the upper side of the movable rod 141, and the limiting block 142 is slidably installed in the limiting groove 143, and the limiting groove 143 is opened at the lower side of the column 14, and the lower end of the column 14 is rotatably installed with an anti-dropping block 144, the side of the anti-dropping block 144 is inclined, and the anti-dropping block 144 is arranged one-to-one with the limiting block 142; the driving member 15 includes an electric push rod 5 151 installed at the lower end of the sandblasting box 2, and a top pressure plate 152 is fixed to the output end of the electric push rod 5 151, and an inclined driving block 153 is installed at the end of the top pressure plate 152, and the driving block 153 is fitted and slidably installed on the lower side of the movable rod 141; When the electric push rod 1 91 is started, it can drive the pushing plate 92 to push the nut that falls from the storage tube 1 62 to the support frame 5, and push the nut to be set on the upper end of the column 14, and then the nut falls on the outside of the column 14, and then the electric push rod 3 123 and the electric push rod 2 121 are started respectively, and the output end of the electric push rod 3 123 clamps the partition block through the clamping block 124, and then the electric push rod 2 121 drives the clamped partition block to move to the column 14, and then the electric push rod 3 123 is started in the reverse direction, and the partition block falls on the outside of the column 14, so that the staggered placement of the nut and the partition block is achieved by starting the electric push rod 1 91 and the electric push rod 121 respectively. When the nut is installed, start the electric push rod 4 131, and the electric push rod 4 131 drives The positioning rod 133 extends into the column 14, and the connecting rod 16 is inserted into the column 14, and then the sandblasting mechanism in the sandblasting box 2 is used to grind the nut. After the grinding is completed, the electric push rod 5 151 is started to drive the top pressure plate 152 away from the movable rod 141, and then under the action of gravity, the limit block 142 rotates in the opposite direction without blocking the nut and the separator. The grinded nut and separator can fall down, and then fall into the corresponding collection box 4 after being screened by the screening plate 3. The nuts are automatically fed and unloaded to achieve batch grinding of the nuts, and the staggered distribution of the separators and nuts allows the end faces of the nuts to be polished, and avoids the influence of sandblasting on the threads inside the nuts, thereby improving the grinding effect. At the same time, after rotating the swivel 8, the swivel 8 uses the threaded connection with the storage tube 62 to move up and down, squeezes the movable rod 73, and drives the movable plate 73 to slide on the storage tube 62 to limit nuts of different specifications and sizes. At the same time, when the existing motor drives the threaded rod 101 to rotate, the threaded rod 101 uses the threaded connection between the sliding rod 102 and the fit between the sliding rod 102 and the support frame 5 to drive the pulley 103 to slide in the slide groove 63, and drives the storage tube 62 to move up and down, so that nuts of different heights can be pushed, thereby improving applicability.

[0030] Working principle: When using the nut batch grinding device, Figure 1-8As shown, the electric push rod 1 91 is started, and the push plate 92 is driven to push the nut that falls from the storage tube 1 62 to the support frame 5, and the nut is pushed and sleeved on the upper end of the column 14, and then the nut falls on the outside of the column 14, and then the electric push rod 3 123 and the electric push rod 2 121 are started respectively, and the output end of the electric push rod 3 123 clamps the partition block through the clamping block 124, and then the electric push rod 2 121 drives the clamped partition block to move to the column 14, and then the electric push rod 3 123 is started in the reverse direction, and the partition block falls on the outside of the column 14, so that the staggered placement of the nut and the partition block is achieved by starting the electric push rod 1 91 and the electric push rod 121 respectively. When the nut is installed, the electric push rod 4 131 is started, and the electric push rod 4 131 drives the positioning rod 133 to extend into the column 14 and the engagement rod 133 is engaged. The connecting rod 16 is inserted into the column 14, and the sandblasting mechanism in the sandblasting box 2 is used to grind the nut. After the grinding is completed, the electric push rod 5 151 is started to drive the top pressure plate 152 away from the movable rod 141, and then under the action of gravity, the limit block 142 rotates in the opposite direction without blocking the nut and the separator. The grinded nut and separator can fall down, and then fall into the corresponding collection box 4 after screening by the screening plate 3. The nuts are automatically loaded and unloaded, and the nuts are batch ground. The staggered distribution of the separators and nuts allows the end faces of the nuts to be ground, and avoids the influence of sandblasting on the internal threads of the nuts, thereby improving the grinding effect. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0031] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 nut batch grinding device, characterized in that: It comprises a frame (1), a sandblasting box (2) is mounted on the upper end of the frame (1), a column (14) is arranged inside the sandblasting box (2), and an upper pressing member (13) and a driving member (15) are respectively arranged at the upper and lower ends of the column (14); A support frame (5) is installed on the left side of the upper end of the frame body (1), and a storage member (6) is installed on the upper end of the support frame (5), and the storage member (6) is used to place the nuts to be polished. A height adjustment member (10) is installed below the support frame (5), and the height adjustment member (10) is used to adjust the height of the storage member (6). A push member (9) is installed below the storage member (6), and the push member (9) pushes the nuts dropped from the storage member (6) into the sandblasting box (2); The frame (1) is provided with a screening plate (3) below the sandblasting box (2), and a collecting box (4) is provided below the screening plate (3), and a second storage cylinder (11) is provided at the upper right end of the frame (1), the interior of the second storage cylinder (11) being used to store the partitions, and a second pushing member (12) is provided below the second storage cylinder (11), and the second pushing member (12) is used to push the partitions dropped from the second storage cylinder (11) into the sandblasting box (2).

2. A nut batch grinding device according to claim 1, characterized in that: The storage member (6) comprises a bracket (61) located above the support frame (5), a storage tube (62) is fixed to the upper end of the bracket (61), and the bracket (61) is slidably arranged on the outer side of the guide rod (51), and the guide rod (51) is fixedly mounted on the upper end of the support frame (5), a rotating ring (8) is threadedly mounted on the outer side of the storage tube (62), and a limiting mechanism (7) is mounted on the storage tube (62).

3. A nut batch grinding device according to claim 1, characterized in that: The limiting mechanism (7) comprises a limiting plate (71) installed at an equal angle inside the storage tube (62); a guide rod (72) and a movable plate (73) are fixed to a side of the limiting plate (71) away from the center of the storage tube (62); the guide rod (72) and the movable plate (73) form a contacting effect with the inner wall of the storage tube (62); a pressure spring (74) is sleeved on the outer side of the guide rod (72); and two ends of the pressure spring (74) are respectively attached to the limiting plate (71) and the storage tube (62).

4. A nut batch grinding device according to claim 1, characterized in that: The push member (9) comprises an electric push rod (91) fixedly mounted on the support frame (5); a push plate (92) is fixedly mounted on the output end of the electric push rod (91); an elastic telescopic member (93) is mounted on the upper end of the push plate (92); a baffle (94) is mounted on the output end of the elastic telescopic member (93); and an upper end surface of the baffle (94) is in contact with a lower end surface of the bracket (61).

5. The nut batch grinding device according to claim 1, characterized in that: The height adjustment member (10) comprises a threaded rod (101) mounted below the support frame (5) via a bearing, a sliding rod (102) being provided on the outer thread sleeve of the threaded rod (101), the upper end of the sliding rod (102) being in contact with the lower end surface of the support frame (5), and pulleys (103) being rotatably mounted on both the front and rear ends of the sliding rod (102).

6. A nut batch grinding device according to claim 1, characterized in that: The pulley (103) is slidably mounted inside the slide groove (63), and the slide groove (63) is inclinedly opened inside the front and rear sides of the bracket (61).

7. A nut batch grinding device according to claim 1, characterized in that: The push member 2 (12) comprises an electric push rod 2 (121) installed on the side of the sandblasting box (2), the output end of the electric push rod 2 (121) is installed with a support rod (122), and the support rod (122) is installed with an electric push rod 3 (123), and the output end of the electric push rod 3 (123) is fixed with a clamping block (124), and the partition is in a shape with small diameters at the top and bottom and a large diameter in the middle.

8. The nut batch grinding device according to claim 1, characterized in that: The upper pressure piece (13) comprises an electric push rod four (131) fixedly mounted on the sandblasting box body (2), the output end of the electric push rod four (131) is mounted with a mounting plate (132), and a positioning rod (133) is mounted on the mounting plate (132), and the positioning rod (133) and the column (14) form a concave-convex fit, and a connecting rod (16) is inserted between the positioning rod (133) and the column (14), and at the same time, the lower end surface of the positioning rod (133) is in contact with the upper end surface of the partition located at the uppermost end.

9. A nut batch grinding device according to claim 1, characterized in that: A movable rod (141) is slidably mounted inside the lower end of the column (14), a limiting block (142) is fixed to the upper end side of the movable rod (141), and the limiting block (142) is slidably mounted inside the limiting groove (143), and the limiting groove (143) is opened at the lower end side of the column (14), and an anti-slip block (144) is rotatably mounted on the lower end of the column (14), the side of the anti-slip block (144) is inclined, and the anti-slip block (144) and the limiting block (142) are arranged one-to-one correspondingly.

10. The nut batch grinding device according to claim 1, characterized in that: The driving member (15) comprises an electric push rod five (151) mounted at the lower end of the sandblasting box (2); a top pressure plate (152) is fixed to the output end of the electric push rod five (151); an inclined driving block (153) is mounted at the end of the top pressure plate (152); and the driving block (153) is slidably mounted on the lower end side of the movable rod (141).

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