Glass sand blasting machine

Abstract

The invention discloses a glass sand blasting machine which comprises a conveying system, a working bin, a lifting door assembly, a spray gun assembly, a sand grain feeding assembly, a cyclone separator, a dust removal system and an electric control box. The driving air cylinder drives the spray gun to swing, and the sand blasting force can be changed by adjusting the swing angle of the spray gun, so that different sand blasting effects are formed, the situation that the surface of glass is thinned due to excessive local sand blasting can be avoided, the sand blasting force is uniform, and the sand blasting quality is stable; the transmission system, the lifting door assembly, the spray gun assembly and the like are controlled by the electric cabinet, the automation intensity is high, and the labor intensity of operators is reduced; the cyclone separator and the dust removal system are adopted to improve the sand blasting environment, improve the utilization rate of sand grains, prevent sand grains and dust from overflowing, and have the characteristics of environmental protection and safety.

Description

Technical Field

[0001] The invention relates to the technical field of glass processing, in particular to a glass sandblasting machine. Background Art

[0002] The principle of sandblasting is to use accelerated sand particles to impact the surface of the workpiece to achieve surface treatment operations such as rust removal, liquid glue burrs, oxide layer removal, carbon layer removal, and even glass atomization. Sandblasting technology plays an important role in the production of glass products. Glass sandblasting is a process of grinding glass by mixing water with corundum and spraying it on the surface of glass at high pressure. It is a glass product processed into horizontal or concave patterns on glass by an automatic horizontal sandblasting machine or a vertical sandblasting machine. Usually, the operator needs to manually control the rotation of the workpiece and the angle of the spray gun; manually controlling the rotation of the workpiece and the angle of the spray gun will cause uneven removal of materials after sandblasting, which is easy to cause dimensional deviations and unstable sandblasting quality.

[0003] In the prior art, a glass sandblasting machine with application number 201720037371.6 includes a guide wheel frame, a support frame, a main machine, an input beam, an output beam, a transmission motor, a control box, an observation window, a hand spray window, a dust exhaust fan, a recycling box, and a discharge port. Guide wheel frames and support frames are arranged on both sides of the main machine, and the support frame and the guide wheel frame are fixedly connected by welding. An observation window and a hand spray window are arranged on one side of the main machine, and a control box is arranged on one side of the main machine. An output beam and an input beam are arranged below the guide wheel frame, and a transmission motor is arranged on one side of the input beam. A dust exhaust fan is arranged at one end of the recycling box. The glass sandblasting machine is suitable for surface sandblasting processing of flat glass of different sizes and thicknesses, and automatic operation and manual operation can be realized together. However, it still has obvious defects: 1. The device cannot change the angle of the sandblasting gun. On the one hand, it is often necessary to change the angle of the sandblasting gun to change the sandblasting intensity during operation to achieve different sandblasting effects. On the other hand, the sandblasting gun with adjustable angle avoids excessive sandblasting and thinning of the glass. The use effect of the non-adjustable sandblasting gun is limited; 2. There is a lack of filtering and recycling sandblasting devices. A large amount of sand is required during operation, resulting in a waste of resources. The working conditions are poor, the operator is covered with dust, and long-term contact with sand and dust is harmful to the body, and it is easy to get silicosis. The labor intensity is high. During operation, both hands must be inserted into the sandblasting room to constantly turn the workpiece. The production efficiency of manually spraying parts in the room is low. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a glass sandblasting machine.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention discloses a glass sandblasting machine, comprising a transmission system, wherein the transmission system is used to drive the glass to move horizontally; a working chamber, wherein the working chamber comprises an isolation chamber for placing the glass to be sandblasted, a sandblasting chamber for the glass sandblasting operation, and two lifting door assemblies arranged on both sides of the working chamber; a spray gun assembly, wherein the spray gun assembly is installed in the sandblasting chamber and is used to sandblast the glass; a sand grain feeding assembly, wherein the sand grain feeding assembly is installed above the spray gun assembly and is used to transport sand grains into the spray gun assembly; a cyclone separator, wherein the cyclone separator is located above the sand grain feeding assembly, and its side surface is connected to the bottom of the working chamber through a pipeline, and is used to recover and separate sand grains in the dust; a dust removal system, wherein the dust removal system is connected to the top of the cyclone separator through a pipeline, and is used to absorb the dust-containing gas in the cyclone separator and discharge it after filtering; and an electric control box, wherein the electric control box is electrically connected to the transmission system, the lifting door assembly, the spray gun assembly, the sand grain feeding assembly, the cyclone separator and the dust removal system respectively and controls their operation.

[0006] As a preferred technical solution of the present invention, the transmission system includes a transmission belt installed inside the working bin and a driving motor for driving the transmission belt, and the driving motor is fixed to a side of the working bin.

[0007] As a preferred technical solution of the present invention, the lifting door assembly includes lifting doors fixed to both sides of the working chamber and a lifting cylinder for driving the lifting doors to move vertically back and forth.

[0008] As a preferred technical solution of the present invention, the spray gun assembly is installed in the sandblasting chamber, and the spray gun assembly includes a plurality of spray guns for spraying sand distributed along a rectangular array, a plurality of spray gun brackets for fixing the spray guns, a fixing frame for supporting the swing of the spray gun brackets, a transmission assembly for driving the spray gun brackets to swing, and a driving cylinder rotatably connected to the transmission assembly, and two interfaces are provided on the top of the spray gun, and the interfaces are respectively connected to the sand feeding assembly and an external vacuum generator through pipelines for spraying high-speed sand; the two ends of the spray gun bracket are rotatably connected to the fixing frame; the top of the fixing frame is fixed to the inside of the sandblasting chamber; the transmission assembly is movably connected to the middle part of the spray gun bracket; the base of the driving cylinder is fixed to the top of the sandblasting chamber.

[0009] As a preferred technical solution of the present invention, the sand feeding assembly includes a sand storage box arranged above the isolation chamber, a sand loading drawer for loading sand, a plurality of parallel sand falling pipes connected to the bottom of the sand storage box, and an air supply pipe for providing compressed air to the spray gun. The bottom ends of the sand falling pipe and the air supply pipe are connected to the spray gun for providing high-pressure sand to the spray gun.

[0010] As a preferred technical solution of the present invention, the dust removal system includes a dust recovery pipe for conveying dust, a gas suction pipe for directionally sucking dust, a dust removal box for collecting dust, a plurality of vertically distributed filter cartridges for filtering dust, and a sedimentation water tank for impurity precipitation. The upper end of the dust recovery pipe is connected to the cyclone separator, and the lower end is connected to the side of the dust removal box. A plurality of the filter cartridges are evenly installed inside the dust removal box. The sedimentation water tank is connected to the lower end of the dust removal box. The gas suction pipe is fixed above the dust removal box. The upper end of the gas suction pipe is connected to an external vacuum generator, and the lower end of the gas suction pipe is arranged directly opposite to the top of the filter cartridge.

[0011] As a preferred technical solution of the present invention, the cyclone separator includes a cylindrical cyclone, a cyclone trough located above the cyclone, and a sand collecting hopper located below the cyclone. The top of the cyclone trough is connected to the dust removal system through a dust recovery pipe, and the bottom of the sand collecting hopper is connected to the sand feeding assembly.

[0012] As a preferred technical solution of the present invention, the glass sandblasting machine also includes a sand recovery pipe, which is arranged at the bottom of the working chamber. The side of the cyclone is connected to the bottom of the sandblasting chamber through the sand recovery pipe, so as to collect the sand discharged from the sandblasting chamber into the cyclone.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The spray gun is driven by a driving cylinder to swing. The intensity of the sandblasting can be changed by adjusting the swing angle of the spray gun, thereby forming different sandblasting effects. It can also avoid excessive sandblasting on the local surface of the glass and thinning it, so as to achieve the effect of uniform sandblasting intensity and stable sandblasting quality; 2. The transmission system, lifting door assembly, spray gun assembly, etc. are controlled by the electric control box. The sandblasting process has high automation intensity, which reduces the labor intensity of the operator; 3. A cyclone separator and dust removal system are used to improve the sandblasting environment. The sand circulation system improves the utilization rate of sand and prevents sand and dust from spilling out. Since the entire dust removal system is completely sealed, sand and dust are prevented from entering the external environment, which is environmentally friendly and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a front view of the present invention; Figure 4 It is a structural schematic diagram of the middle spray gun assembly of the present invention; Figure 5 is a front view of the middle spray gun assembly of the present invention; Figure 6 is a cross-sectional view of the dust removal system of the present invention; In the figure: 1. transmission system; 2. working chamber; 3. spray gun assembly; 4. sand feeding assembly; 5. cyclone separator; 6. dust removal system; 7. electric control box; 8. sand recovery pipe; 11. conveyor belt; 12. drive motor; 21. isolation room; 22. sand blasting room; 23. lifting door assembly; 24. lifting door; 25. lifting cylinder; 31. spray gun; 32. spray gun bracket; 33. fixing frame; 34. transmission assembly; 35. drive cylinder; 41. sand storage box; 42. sand loading drawer; 43. sand falling pipe; 44. air supply pipe; 51. cyclone trough; 52. cyclone; 53. sand collecting hopper; 61. dust recovery pipe; 62. gas suction pipe; 63. filter cartridge; 64. dust removal box; 65. sedimentation water tank. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0016] In the drawings, the same reference numerals all refer to the same components.

[0017] like Figure 1-6 As shown, the present invention provides a glass sandblasting machine, comprising a transmission system 1, the transmission system 1 is used to drive the glass to move horizontally; a working chamber 2, the working chamber 2 includes an isolation chamber 21 for placing the glass to be sandblasted, a sandblasting chamber 22 for glass sandblasting operation, and two lifting door assemblies 23 arranged on both sides of the working chamber 2; a spray gun assembly 3, the spray gun assembly 3 is installed in the sandblasting chamber 22, and is used to sandblast the glass; a sand grain feeding assembly 4, the sand grain feeding assembly 4 is installed above the spray gun assembly 3, and is used to transport sand grains to the spray gun assembly 3; a cyclone separator Separator 5, the cyclone separator 5 is located above the sand feeding assembly 4, and its side is connected with the bottom of the working chamber 2 through a pipeline, and is used for recovering and separating the sand particles in the dust; dust removal system 6, the dust removal system 6 is connected with the top of the cyclone separator 5 through a pipeline, and is used for sucking away the dust-containing gas in the cyclone separator 5 and discharging it after filtering; and, an electrical control box 7, the electrical control box 7 is electrically connected to the transmission system 1, the lifting door assembly 23, the spray gun assembly 3, the sand feeding assembly 4, the cyclone separator 5 and the dust removal system 6 respectively and controls their operation.

[0018] The use of the present invention is as follows: 1. Open the lifting door 24 on the side of the isolation chamber 21, put the glass block to be sandblasted from the lifting door 24 into the glass sandblasting fixture on the conveyor belt 11, close the lifting door 24, start the drive motor 12, the drive motor 12 drives the conveyor belt to move, move the sandblasting fixture to the sandblasting chamber 22, and then stop the drive motor 12 to prepare for sandblasting the upper surface of the glass.

[0019] 2. Sand is added from the upper sand drawer 42 to the sand storage box 41, and enters the spray gun 31 through the sand falling pipe. At the same time, compressed air enters the spray gun 31 through the air supply pipe 44. The sand is sprayed at high speed by the compressed air onto the glass surface on the conveyor belt 11, and the glass surface is sandblasted; 3. After sandblasting, the sand and dust fall into the sand recovery pipe 8, and are sucked by the vacuum of the cyclone 52 and enter the cyclone separator 5. The sand with large mass falls into the sand collecting hopper 53 for recycling, and the dust with small mass enters the dust removal box 64 through the dust recovery pipe. After being filtered and adsorbed by the filter cartridge 63, the impurities are precipitated into the sedimentation water tank 65, thereby achieving the dust removal effect. 4. When the sandblasting of the upper surface of the glass is completed, the drive motor 12 is started, the conveyor belt moves in the reverse direction, and the sandblasting fixture is moved from the sandblasting room 21 to the isolation room 21. The glass block is turned over manually, and then operations 1-3 are repeated to sandblast the lower surface of the glass. After the sandblasting of the upper and lower surfaces of the glass is completed, the glass is taken out of the sandblasting room 21 to complete the sandblasting operation.

[0020] Furthermore, the transmission system 1 includes a conveyor belt 11 installed inside the working chamber 2 and a driving motor 12 for driving the conveyor belt 11. The driving motor 12 is fixed to the side of the working chamber 2. Preferably, a placement fixture for placing glass is provided on the conveyor belt 11. The placement fixture is respectively located in the isolation chamber 21 and the sandblasting chamber 22, and is used for positioning the glass during sandblasting. The conveyor belt 11 is set through the isolation chamber 21 and the sandblasting chamber 22. The driving motor 12 can rotate forward and reverse, driving the conveyor belt 11 forward and reverse, and is used for automatic loading and unloading of glass to be sandblasted. When the glass moves into the sandblasting chamber 22, the sandblasting operation on the glass starts. When the glass moves into the isolation chamber 21, the glass can be turned over through the operating window.

[0021] Further, such as Figure 3 As shown, the lifting door assembly 23 includes lifting doors 24 fixed on both sides of the working bin 2 and a lifting cylinder 25 for driving the lifting door 24 to move vertically back and forth. Preferably, a guide rail for the up and down movement of the lifting door 24 is fixed on the side wall of the working bin 2, and the base of the lifting cylinder 25 is fixed to the top of the working bin 2 through a bracket. The movable end of the lifting cylinder 25 is connected to the lifting door 24 through a floating joint for controlling the up and down movement of the lifting door 24. The movement of the two lifting cylinders 25 is controlled by the PLC program in the electric control box 7.

[0022] Further, such as Figure 4-5 As shown, the spray gun assembly 3 is installed in the sandblasting chamber 22, and the spray gun assembly 3 includes a plurality of spray guns 31 for spraying sand particles, a spray gun bracket 32, a fixing frame 33, a transmission assembly 34 and a driving cylinder 35. Preferably, the plurality of spray guns 31 are horizontally distributed along a rectangular array; the spray gun 31 is fixed in the circular hole on the spray gun bracket 32 ​​by a locking nut; the two ends of the spray gun bracket 32 ​​are rotatably fixed on the fixing frame 33 by bearing connection; the top of the fixing frame 33 is fixed on the side wall of the sandblasting chamber 22; the middle part of the spray gun bracket 32 ​​is movably connected to the transmission assembly 34 through a transfer rod, and the lower part of the transmission assembly 34 is provided with an oblong track distributed in the vertical direction, and the top of the transfer rod can move up and down in the oblong track, thereby driving the spray gun bracket 32 ​​to swing left and right; one side of the top of the transmission assembly 34 is connected to the movable end of the driving cylinder 35, and the base of the driving cylinder 35 is fixed to the top of the sandblasting chamber 22. When the driving cylinder 35 moves in a telescopic manner, the driving transmission assembly 34 swings on the horizontal plane, thereby driving the spray gun bracket 32 ​​to swing; two interfaces are provided on the top of the spray gun 31, which are connected to the sand grain feeding assembly 4 and the external vacuum generator through pipelines respectively, for spraying high-speed sand grains. By controlling the movement of the driving cylinder 35, the swing angle of the spray gun 31 can be adjusted, thereby changing the angle of sandblasting, thereby forming different sandblasting effects, and also avoiding excessive sandblasting on the local surface of the glass and thinning it, so as to achieve the effect of uniform sandblasting force and stable sandblasting quality.

[0023] Further, such as Figure 3-4 As shown, the sand feeding assembly 4 includes a sand storage box 41 disposed above the isolation chamber 21, a sand loading drawer 42 for loading sand, a plurality of parallel sand dropping pipes 43 connected to the bottom of the sand storage box 41, and an air supply pipe 44 for providing compressed air to the spray gun 31. Preferably, the lower part of the sand storage box 41 is funnel-shaped, the sand loading drawer 42 is disposed on one side of the sand storage box 41, and is used to add sand to the sand storage box 41. The lower part of the spray gun 31 is trumpet-shaped, and two interfaces are disposed on the top thereof. The bottom ends of the sand dropping pipe 43 and the air supply pipe 44 are both connected to the two interfaces of the spray gun 31. The sand arrives at the spray gun 31 after passing through the sand dropping pipe 43 from the sand storage box 41, and is pressurized by the compressed air in the spray gun 31 and then sprayed onto the glass surface at a high speed, thereby realizing the surface sandblasting of the glass. A pressure regulating valve is disposed on the air supply pipe 44, and the intensity of the sandblasting can be controlled by adjusting the pressure of the compressed gas, thereby forming different sandblasting effects.

[0024] Further, such as Figure 6As shown, the dust removal system 6 includes a dust recovery pipe 61 for conveying dust, a gas suction pipe 62 for directional dust suction, a plurality of vertically distributed filter cartridges 63 for filtering dust, a dust removal box 64 for collecting dust, and a sedimentation water tank 65 for impurity precipitation. Preferably, the upper end of the dust recovery pipe 61 is connected to the cyclone separator 5, and the lower end is connected to the side of the dust removal box 64. A number of filter cartridges 63 are evenly installed inside the dust removal box 64. The filter cartridge 63 is cylindrical and is coated with filter cotton on the outside. The sedimentation water tank 65 is connected to the lower end of the dust removal box 62. The gas suction pipe 63 is fixed above the dust removal box 64. The upper end of the gas suction pipe 62 is connected to an external vacuum generator (not shown). The lower end of the gas suction pipe 62 is trumpet-shaped, and its trumpet mouth faces the top of the filter cartridge 63. Dust enters the filter cartridge 63 through vacuum adsorption. The sedimentation water tank 65 can remove fine sand and dust falling from the filter cartridge 63, making the dust removal more thorough and clean.

[0025] Further, such as Figure 3 As shown, the cyclone separator 5 includes a cylindrical cyclone 52, a cyclone slot 51 located above the cyclone 52, and a sand collecting hopper 53 located below the cyclone 52. The top of the cyclone slot 51 is connected to the dust removal system 6 through a dust recovery pipe 61, and the bottom of the sand collecting hopper 53 is connected to the sand feeding assembly 4. The sandblasting sand and dust in the working bin 2 are sucked into the cyclone separator 5 through the recovery pipe by the negative pressure generated by the cyclone 52. After separation, the separated dust enters the dust recovery pipe 61 through the cyclone slot 51, and then is dust-removed in the dust removal system 6. The separated sand enters the sand storage box 41 below through the sand collecting hopper 53, thereby realizing the recycling of the sand.

[0026] Further, such as Figure 2 As shown, the glass sandblasting machine also includes a sand recovery pipe 8, which is arranged at the bottom of the working bin 2. In this embodiment, the bottom of the working bin 2 is funnel-shaped, and the bottom end of the funnel is connected to the sand recovery pipe 8. The side of the cyclone 52 is connected to the bottom of the sandblasting chamber 22 through the sand recovery pipe 8. After the cyclone 52 generates negative pressure suction, the sand discharged from the sandblasting chamber 22 is collected into the cyclone 52 through the sand recovery pipe 8, and then falls back into the sand storage box 41 under the action of gravity.

[0027] The present invention is a glass sandblasting machine, which realizes the function of automatically adjusting the angle of the spray gun by setting a spray gun matrix that can automatically swing, and achieves the goal of stable sandblasting quality and uniform sandblasting thickness. In addition, the present invention recycles sand dust by setting a cyclone, and at the same time, the dust and other pollutants generated by sandblasting are completely absorbed and precipitated through the dust removal system, thereby reducing pollution to the environment and achieving the purpose of environmental protection.

[0028] Finally, it should be noted that the above description 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 replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A glass sandblasting machine, characterized in that: The invention comprises a transmission system (1), wherein the transmission system (1) is used to drive the glass to move horizontally; a working chamber (2), wherein the working chamber (2) comprises an isolation chamber (21) for placing the glass to be sandblasted, a sandblasting chamber (22) for the glass sandblasting operation, and two lifting door assemblies (23) arranged on both sides of the working chamber (2); a spray gun assembly (3), wherein the spray gun assembly (3) is installed in the sandblasting chamber (22) and is used to sandblast the glass; a sand grain feeding assembly (4), wherein the sand grain feeding assembly (4) is installed above the spray gun assembly (3) and is used to transport sand grains to the spray gun assembly (3); and a cyclone separator (5). The cyclone separator (5) is located above the sand feeding assembly (4), and its side is connected to the bottom of the working chamber (2) through a pipeline, and is used to recover and separate sand particles in the dust; a dust removal system (6), the dust removal system (6) is connected to the top of the cyclone separator (5) through a pipeline, and is used to filter and discharge the gas containing dust in the cyclone separator (5); and an electric control box (7), the electric control box (7) is electrically connected to the transmission system (1), the lifting door assembly (23), the spray gun assembly (3), the sand feeding assembly (4), the cyclone separator (5) and the dust removal system (6) respectively, and controls their operation.

2. A glass sandblasting machine according to claim 1, characterized in that: The transmission system (1) comprises a transmission belt (11) installed inside the working bin (2) and a driving motor (12) for driving the transmission belt (11); the driving motor (12) is fixed to a side surface of the working bin (2).

3. A glass sandblasting machine according to claim 1, characterized in that: The lifting door assembly (23) comprises lifting doors (24) fixed to both sides of the working chamber (2) and a lifting cylinder (25) for driving the lifting door (24) to move vertically back and forth.

4. A glass sandblasting machine according to claim 1, characterized in that: The spray gun assembly (3) is installed in the sandblasting chamber (22), and comprises a plurality of spray guns (31) for spraying sand particles distributed along a rectangular array, a plurality of spray gun brackets (32) for fixing the spray guns (31), a fixing frame (33) for supporting the spray gun brackets (32) to swing, a transmission assembly (34) for driving the spray gun brackets (32) to swing, and a driving cylinder (35) rotatably connected to the transmission assembly (34), wherein two interfaces are provided at the top of the spray gun (31), and the interfaces are respectively connected to the sand feeding assembly (4) and an external vacuum generator through pipelines, and are used to spray high-speed sand particles; the two ends of the spray gun bracket (32) are rotatably connected to the fixing frame (33); the top of the fixing frame (33) is fixed inside the sandblasting chamber (22); the transmission assembly (34) is movably connected to the middle of the spray gun bracket (32); and the base of the driving cylinder (35) is fixed to the top of the sandblasting chamber (22).

5. A glass sandblasting machine according to claim 4, characterized in that: The sand feeding assembly (4) comprises a sand storage box (41) arranged above the isolation chamber (21), a sand loading drawer (42) for loading sand, a plurality of sand dropping pipes (43) arranged in parallel and connected to the bottom of the sand storage box (41), and an air supply pipe (44) for supplying compressed air to the spray gun (31). The bottom ends of the sand dropping pipe (43) and the air supply pipe (44) are both connected to the spray gun (31) for supplying high-pressure sand to the spray gun (31).

6. A glass sandblasting machine according to claim 1, characterized in that: The dust removal system (6) comprises a dust recovery pipe (61) for conveying dust, a gas suction pipe (62) for directional dust suction, a plurality of vertically distributed filter cartridges (63) for filtering dust, a dust removal box (64) for collecting dust, and a sedimentation water tank (65) for impurity sedimentation. The upper end of the dust recovery pipe (61) is connected to the cyclone separator (5), and the lower end is connected to the side of the filter cartridge (63). The plurality of dust removal boxes (64) are evenly installed inside the filter cartridge (63). The sedimentation water tank (65) is connected to the lower end of the filter cartridge (63). The gas suction pipe (62) is fixed above the filter cartridge (63). The upper end of the gas suction pipe (62) is connected to an external vacuum generator. The lower end of the gas suction pipe (62) is arranged directly opposite to the top of the dust removal box (64).

7. A glass sandblasting machine according to claim 6, characterized in that: The cyclone separator (5) comprises a cylindrical cyclone (52), a cyclone trough (51) located above the cyclone (52), and a sand collecting hopper (53) located below the cyclone (52); the top of the cyclone trough (51) is connected to the dust removal system (6) via a dust recovery pipe (61), and the bottom of the sand collecting hopper (53) is connected to the sand feeding assembly (4).

8. A glass sandblasting machine according to claim 7, characterized in that: The glass sandblasting machine further comprises a sand recovery pipe (8), wherein the sand recovery pipe (8) is arranged at the bottom of the working chamber (2), and the side of the cyclone (52) is connected to the bottom of the sandblasting chamber (22) through the sand recovery pipe (8), so as to collect the sand discharged from the sandblasting chamber (22) into the cyclone (52).

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