Electrostatic sand planting machine

Abstract

The utility model relates to the technical field of sand planting machines, in particular to an electrostatic sand planting machine which comprises a machine body, the machine body is composed of a frame, a lower pole plate, an upper pole plate, a sand box assembly, a sand knife assembly, a dust raising assembly and a sand conveying belt assembly, and idler rollers used for conveying abrasive cloth and abrasive paper are arranged on the two sides of the bottom of the upper pole plate respectively. Electromagnetic vibrators are arranged at the two ends of the sand box assembly respectively; the sand knife assembly is arranged at a bottom outlet of the sand box assembly; the dust raising assembly comprises a dust raising mechanism on the upper layer and a sand tank on the lower layer; according to the sand planting machine, sand grains cut out by the sand cutter assembly are conveyed to the lower polar plate through the sand conveying belt assembly and used for one-time adsorption sand planting of the upper polar plate, the sand grains, not adsorbed, at the tail end of the sand conveying belt assembly are conveyed into the dust raising assembly, and the dust raising mechanism is used for raising the sand grains for one-time adsorption sand planting. And the situation that the sand grains are too large and cannot be adsorbed is avoided, and the sharpness and firmness of the abrasive paper are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand planting machines, in particular to an electrostatic sand planting machine. Background Art

[0002] There are two methods for making coated abrasives, one is gravity sanding and the other is electrostatic sanding. Gravity sanding is sanding from top to bottom. The advantage is that any particle size of sand can be used and the production cost is low. The disadvantage is that the sand is uneven, which ultimately leads to the sharpness and firmness of the sandpaper being far inferior to electrostatic sanding.

[0003] Electrostatic sand planting relies on the electrostatic electric field force to attract the sand. The advantage is that the sand is distributed more evenly, but the disadvantage is that the sand particles cannot be attracted if they are too large. In order to improve the adsorption force of the sand particles, an electrostatic sand planting machine is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an electrostatic sand planting machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An electrostatic sand implanting machine comprises a machine body, wherein the machine body is composed of a frame, a lower electrode plate, an upper electrode plate, a sand box assembly, a sand knife assembly, a dust emission assembly, and a sand conveying belt assembly, wherein:

[0007] The lower electrode plate, the upper electrode plate, the sand box assembly, the sand knife assembly and the dust emission assembly are all installed in the frame, the lower electrode plate and the upper electrode plate are arranged opposite to each other, the sand box assembly and the sand knife assembly are arranged on one side of the two electrode plates, and the dust emission assembly is arranged at the bottom of the two electrode plates;

[0008] Idle rollers for conveying abrasive cloth and sandpaper are respectively arranged on both sides of the bottom of the upper electrode plate;

[0009] Electromagnetic vibrators are respectively provided at both ends of the sand box assembly;

[0010] The sand knife assembly is arranged at the bottom outlet of the sand box assembly;

[0011] The dust-raising assembly comprises a dust-raising mechanism at an upper layer and a sand trough at a lower layer;

[0012] The sand feeding belt assembly comprises a first sand feeding belt and a second sand feeding belt, the feeding end of the sand feeding belt assembly is located at the unloading port of the sand knife assembly, the sand feeding belt assembly slides over the plate surface of the lower pole plate and is wound around the outside of the dust removal assembly, the sand particles cut out by the sand knife assembly are transferred to the lower pole plate by the sand feeding belt assembly and used for the upper pole plate to adsorb and plant sand once, the sand particles that are not adsorbed at the end of the sand feeding belt assembly are transferred to the dust removal assembly and the dust removal mechanism is used to lift up the sand particles for secondary adsorption and planting.

[0013] In a preferred technical solution, the sand box assembly is a box bucket, and the bottom of the box bucket has an opening.

[0014] In a preferred technical solution, the sanding knife assembly includes a cylinder, a knife rotating shaft, a connecting rod, a connecting base, a knife seat and a sanding knife. The cylinder and the knife rotating shaft are located on the same side of the box bucket, and the cylinder is located above the knife rotating shaft. The two ends of the knife rotating shaft are rotatably fixed to the side wall of the box bucket through bearing components. The connecting rod and the connecting base are both sleeved on the knife rotating shaft and rotate coaxially with the shaft rod.

[0015] In a preferred technical solution, the telescopic rod provided at the output end of the cylinder is connected to the connecting rod.

[0016] In a preferred technical solution, the number of the connecting bases is arranged in multiple groups, and the multiple connecting bases are all connected to the same knife seat, and the knife seat is provided with a sand knife for pelletizing, and the sand knife acts on the bottom opening of the box bucket along its tangential direction.

[0017] In a preferred technical solution, a plurality of identical dust raising rollers are arranged inside the dust raising mechanism, and a servo motor for driving the dust raising rollers to rotate is arranged outside the dust raising mechanism.

[0018] The beneficial effects of the utility model are:

[0019] The electrostatic sand implanting machine proposed in this scheme solves the problem that the sand particles are too large to be absorbed by the electrostatic sand implanting machine, resulting in reduced sharpness and firmness of the sandpaper. The size of the sand output can be conveniently and accurately controlled to avoid the situation where the sand particles are too large to be absorbed, thereby effectively improving the sharpness and firmness of the sandpaper. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the electrostatic sand planting machine proposed by the utility model;

[0021] Figure 2 This is an exploded view of the components of the electrostatic sand implanting machine proposed by the utility model;

[0022] Figure 3 and Figure 4 A structural schematic diagram of the sand box assembly proposed in the utility model;

[0023] Figure 5 This is a schematic structural diagram of the dust-raising assembly proposed in the utility model.

[0024] In the figure: 1. body; 2. frame; 3. lower electrode plate; 4. upper electrode plate; 5. sand box assembly; 6. box bucket; 7. electromagnetic vibrator; 8. sand cutter assembly; 81. cylinder; 82. cutter rotating shaft; 83. connecting rod; 84. connecting base; 85. cutter seat; 86. sand cutter; 9. dust emission assembly; 10. dust emission mechanism; 1001. dust emission roller; 11. sand trough; 12. first sand feeding belt; 13. second sand feeding belt. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In this embodiment, refer to Figure 1-5 An electrostatic sand implanting machine comprises a body 1, which is composed of a frame 2, a lower plate 3, an upper plate 4, a sand box assembly 5, a sand knife assembly 8, a dust assembly 9, and a sand conveying belt assembly, wherein: Figure 1 As shown, the lower electrode plate 3, the upper electrode plate 4, the sand box assembly 5, the sand knife assembly 8 and the dust assembly 9 are all installed in the frame 2, the lower electrode plate 3 and the upper electrode plate 4 are arranged opposite to each other, the sand box assembly 5 and the sand knife assembly 8 are arranged on one side of the two electrode plates, and the dust assembly 9 is arranged at the bottom of the two electrode plates.

[0027] Idle rollers for conveying emery cloth and sandpaper are respectively arranged on both sides of the bottom of the upper electrode plate 4 , and the emery cloth and sandpaper are conveyed and output in contact with the bottom surface of the upper electrode plate 4 .

[0028] Combined with Figure 3 The sand box assembly 5 is a box bucket 6, and the bottom of the box bucket 6 has an opening. Electromagnetic vibrators 7 are respectively provided at both ends of the sand box assembly 5. The design of the electromagnetic vibrator 7 can release the sand particles put into the box bucket 6 more quickly.

[0029] The sand knife assembly 8 is arranged at the bottom outlet of the sand box assembly 5. Specifically, as shown in the attached Figure 3 And attached Figure 4 As shown, the sand knife assembly 8 includes a cylinder 81, a knife rotating shaft 82, a connecting rod 83, a connecting base 84, a knife seat 85 and a sand knife 86:

[0030] The cylinder 81 and the knife rotating shaft 82 are both located on the same side of the box bucket 6, and the cylinder 81 is located above the knife rotating shaft 82. The two ends of the knife rotating shaft 82 are rotatably fixed to the side walls of the box bucket 6 through bearing components. The connecting rod 83 and the connecting base 84 are both sleeved on the knife rotating shaft 82 and rotate coaxially with the shaft rod.

[0031] Here, it should be supplemented that, first, the telescopic rod arranged at the output end of the cylinder 81 is connected to the connecting rod 83; second, there are multiple groups of connecting bases 84, and the multiple connecting bases 84 are all connected to the same knife seat 85, and the knife seat 85 is provided with a sand knife 86 for pelletizing, and the sand knife 86 acts on the bottom opening of the box bucket 6 along its tangential direction.

[0032] The telescopic rod arranged at the output end of the cylinder 81 can push or pull the connecting rod 83, thereby controlling the rotation of the knife rotating shaft 82, and the various connecting bases 84 sleeved on the knife rotating shaft 82 rotate synchronously, so that the sand knife 86 on the knife seat 85 can be pushed out in the tangential direction. When the sand grains fall out of the box bucket 6, the sand knife 86 can be used to refine and divide the sand grains, so as to cut the sand grains with larger particle size into small pieces, and finally to accurately control the size of the sand output. It should be particularly pointed out that the sand knife 86 is equipped with a top screw at the back, which can ensure the straightness of the sand knife 86 cutting, which is conducive to further reducing the error.

[0033] The sand box assembly 5, the electromagnetic vibrator 7 and the sand cutter assembly 8 are all controlled and operated by an encoder, so as to accurately ensure the flow rate and the size of the sand particles and avoid the situation where the sand particles are too large.

[0034] The dust raising assembly 9 comprises an upper dust raising mechanism 10 and a lower sand tank 11. The dust raising mechanism 10 is provided with a plurality of identical dust raising rollers 1001, and a servo motor for driving the dust raising rollers 1001 to rotate is provided outside the dust raising mechanism 10.

[0035] The sand conveying belt assembly includes a first sand conveying belt 12 and a second sand conveying belt 13. The feeding end of the sand conveying belt assembly is located at the unloading port of the sand knife assembly 8. The sand conveying belt assembly slides over the plate surface of the lower plate 3 and is wound around the outside of the dust generating assembly 9.

[0036] After the blanks in the sandbox assembly 5 are cut by the sand cutter assembly 8, they fall onto the sand conveying belt assembly, and the cut sand grains are conveyed to the lower plate 3 by the sand conveying belt assembly. The sand grains can be adsorbed onto the sandpaper being conveyed along the plate surface of the upper plate 4 by electrostatic action, and one sand planting is completed. Some sand grains that are not adsorbed will remain, and these sand grains will be conveyed to the sand trough 11 of the dust raising assembly 9 by the sand conveying belt assembly. The sand grains that fall into the sand trough 11 can be lifted up by the rotating dust raising roller 1001, and the sand grains are thrown onto the sandpaper by the dust raising roller 1001 for secondary sand planting. In the secondary sand planting process, since the sand grains are thrown onto the sandpaper by the dust raising roller 1001, after two sand planting operations, even if the electrostatic adsorption force is weak, the sand grain adhesion density can be guaranteed, and the sharpness and firmness of the sandpaper can be increased in the end.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electrostatic sand planting machine, characterized in that: The invention comprises a machine body (1), wherein the machine body (1) is composed of a frame (2), a lower electrode plate (3), an upper electrode plate (4), a sand box assembly (5), a sand knife assembly (8), a dust emission assembly (9), and a sand conveying belt assembly, wherein: The lower electrode plate (3), the upper electrode plate (4), the sand box assembly (5), the sand knife assembly (8) and the dust emission assembly (9) are all installed in the frame (2); the lower electrode plate (3) and the upper electrode plate (4) are arranged opposite to each other, the sand box assembly (5) and the sand knife assembly (8) are arranged on one side of the two electrode plates, and the dust emission assembly (9) is arranged at the bottom of the two electrode plates; Idle rollers for conveying abrasive cloth and sandpaper are respectively arranged on both sides of the bottom of the upper electrode plate (4); Electromagnetic vibrators (7) are respectively provided at both ends of the sand box assembly (5); The sand knife assembly (8) is arranged at the bottom outlet of the sand box assembly (5); The dust-raising component (9) comprises a dust-raising mechanism (10) at an upper layer and a sand tank (11) at a lower layer; The sand conveying belt assembly comprises a first sand conveying belt (12) and a second sand conveying belt (13). The feeding end of the sand conveying belt assembly is located at the feeding port of the sand knife assembly (8). The sand conveying belt assembly slides over the plate surface of the lower plate (3) and is wound around the outside of the dust raising assembly (9). The sand grains cut by the sand knife assembly (8) are conveyed to the lower plate (3) by the sand conveying belt assembly and used for primary adsorption and sand planting of the upper plate (4). The sand grains not adsorbed at the end of the sand conveying belt assembly are conveyed to the dust raising assembly (9) and are raised by the dust raising mechanism (10) for secondary adsorption and sand planting.

2. The electrostatic sand implanting machine according to claim 1, characterized in that: The sand box assembly (5) is a box bucket (6), and the bottom of the box bucket (6) has an opening.

3. The electrostatic sand implanting machine according to claim 2, characterized in that: The sand knife assembly (8) comprises a cylinder (81), a knife rotating shaft (82), a connecting rod (83), a connecting base (84), a knife seat (85) and a sand knife (86). The cylinder (81) and the knife rotating shaft (82) are both located on the same side of the box (6), and the cylinder (81) is located above the knife rotating shaft (82). Both ends of the knife rotating shaft (82) are rotatably fixed on the side wall of the box (6) through bearing components. The connecting rod (83) and the connecting base (84) are both sleeved on the knife rotating shaft (82) and rotate coaxially with the shaft rod.

4. The electrostatic sand implanting machine according to claim 3, characterized in that: The telescopic rod arranged at the output end of the cylinder (81) is connected to the connecting rod (83).

5. The electrostatic sand implanting machine according to claim 3, characterized in that: The number of the connecting bases (84) is arranged in multiple groups, and the multiple connecting bases (84) are all connected to the same knife seat (85). The knife seat (85) is provided with a sand knife (86) for cutting particles, and the sand knife (86) acts on the bottom opening of the box bucket (6) along its tangential direction.

6. The electrostatic sand implanting machine according to claim 1, characterized in that: The dust raising mechanism (10) is provided with a plurality of identical dust raising rollers (1001), and a servo motor for driving the dust raising rollers (1001) to rotate is provided outside the dust raising mechanism (10).

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