A sandblasting machine

Abstract

The present invention discloses a sandblasting machine, including a cabinet, a first dust removal mechanism and a lifting mechanism; a silo with a material outlet is provided at the bottom of the cabinet; a material guide mechanism for transporting sand to the material outlet is provided at the bottom of the silo; a feeding mechanism connected to the material outlet of the silo is provided below the material guide mechanism; a product conveying line spanning both ends of the silo and passing through the cabinet is provided above the silo; a sandblasting chamber is provided in the cabinet above the product conveying line; and a sandblasting assembly is provided in the sandblasting chamber. The present invention is provided with a first dust removal mechanism to ensure dust removal of the cabinet interior and products to ensure the safety of workers, and is provided with a material guide mechanism, a feeding mechanism, a lifting mechanism and a feeding mechanism. Workers only need to pour sand into the silo for the first time to automatically work, which not only reduces labor, but also does not require stopping the machine for shoveling sand, greatly improving production efficiency, and the daily output is increased from about 15,000 pieces to about 200,000 pieces, greatly improving production efficiency.

Description

Technical Field

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

[0002] The sandblasting machine uses compressed air mixed with abrasives to impact and cut the surface of the workpiece, so that the surface of the workpiece obtains a certain degree of cleanliness and different roughness, improves the mechanical properties of the workpiece surface, thereby improving the fatigue resistance of the workpiece, increasing the adhesion between it and the coating, prolonging the durability of the coating, and is also conducive to the leveling and decoration of the coating. At the same time, the impurities, colors and oxide layers on the surface of the workpiece are removed through the sandblasting process, the surface of the medium is coarsened, the residual stress of the workpiece is eliminated and the surface hardness of the substrate is improved. At present, during the operation of the traditional sandblasting machine, the working cabin is full of dust. After the working cabin is opened or the dust leaks, it will cause environmental pollution and harm the health of the workers. In addition, the sand sprayed by the sandblasting gun accumulates at the bottom of the working cabin, which requires shutdown and manual sand shoveling at a fixed time, and then the sand is reused. Not only does it invest human resources, but it also does not need to stop the machine for sand shoveling, which will greatly reduce production efficiency and increase costs. Summary of the invention

[0003] The purpose of the present invention is to provide a sandblasting machine in view of the deficiencies in the prior art.

[0004] The technical solution to achieve the purpose of the present invention is: a sandblasting machine, including a cabinet, a first dust removal mechanism and a lifting mechanism; a silo with a discharge port is provided at the bottom of the cabinet; a guide mechanism for transporting sand to the discharge port is provided at the bottom of the silo; a feeding mechanism connected with the discharge port of the silo is provided below the guide mechanism; a product conveying line spanning both ends of the silo and passing through the cabinet is provided above the silo; a sandblasting chamber is provided in the cabinet above the product conveying line; a sandblasting assembly is provided in the sandblasting chamber; a sand storage hopper connected with the sandblasting chamber is provided above the sandblasting assembly; a rotary vibration filter screen connected with the sand storage hopper is provided on the top of the cabinet; a feeding mechanism with an outlet connected with the inlet of the rotary vibration filter screen is provided above the rotary vibration filter screen; the feeding mechanism is used to transfer the sand to the lifting mechanism; the lifting mechanism is used to transport the sand to the feeding mechanism; the first dust removal mechanism is connected with the sandblasting chamber.

[0005] The first dust removal mechanism includes a first dust removal device, a first cyclone separator and a first sand blowing device; the top of the first cyclone separator is connected to the first dust removal device; one side of the first cyclone separator is connected to the sand blasting chamber in the cabinet; a first sand collecting chamber is provided at the bottom of the first cyclone separator; a first control valve for controlling the connection or closure of the first cyclone separator and the first sand collecting chamber is provided between the first cyclone separator and the first sand collecting chamber; one side of the first sand collecting chamber is connected to the first sand blowing device, and the other side is connected to the silo.

[0006] A sandblasting machine also includes a drying mechanism communicated with the sandblasting chamber in the cabinet.

[0007] The drying mechanism includes a fan, a heating barrel and an air duct; a heating wire is arranged inside the heating barrel; one end of the heating barrel is connected to the air outlet of the fan, and the other end is connected to the inlet of the air duct; the outlet of the air duct is connected to the sandblasting chamber in the cabinet.

[0008] The material guiding mechanism comprises a screw rod rotatably mounted at the bottom of the silo and a screw rod driving assembly for driving the screw rod to operate.

[0009] It also includes a second dust removal mechanism; the cabinet discharge side is provided with a dust removal hood which is arranged on the product conveying line and is connected to the second dust removal mechanism; the dust removal hood is provided with a product cleaning mechanism for cleaning the product.

[0010] The second dust removal mechanism includes a second dust removal device, a second cyclone separator and a second sand blowing device; the top of the second cyclone separator is connected to the second dust removal device; one side of the second cyclone separator is connected to the sand blasting chamber in the cabinet; a second sand collecting chamber is provided at the bottom of the second cyclone separator; a second control valve for controlling the connection or closure of the second cyclone separator and the second sand collecting chamber is provided between the second cyclone separator and the second sand collecting chamber; one side of the second sand collecting chamber is connected to the second sand blowing device, and the other side is connected to the silo.

[0011] The feeding mechanism is a screw conveyor.

[0012] The product cleaning mechanism is a plurality of ion air guns arranged in the dust removal cover.

[0013] The sandblasting components are a plurality of sandblasting guns.

[0014] The feeding mechanism is a screw conveyor.

[0015] A material level meter is arranged in the sand storage hopper.

[0016] The lifting mechanism is a bucket elevator; the inlet of the bucket elevator is connected to the outlet of the feeding mechanism; the outlet of the bucket elevator is connected to the inlet of the feeding mechanism.

[0017] By adopting the above technical scheme, the present invention has the following beneficial effects: (1) The present invention is provided with a first dust removal mechanism to ensure dust removal inside the cabinet and on the product to ensure the safety of the workers, and is provided with a material guiding mechanism, a material feeding mechanism, a lifting mechanism and a material feeding mechanism. The workers only need to pour the sand into the silo for the first time to automatically work, which not only reduces the labor force but also does not need to stop the machine for shoveling sand, thereby greatly improving the production efficiency. The daily output is increased from about 15,000 pieces to about 200,000 pieces, greatly improving the production benefits.

[0018] (2) The present invention is provided with a first sand blowing device, which can blow the sand separated by the first cyclone separator into the silo. Before the first sand blowing device is provided, the sand separated by the first cyclone separator is collected and needs to be manually supervised and put into the sand blasting machine for continued use. This requires manual supervision all the time, which wastes human resources and increases production costs. Now, the sand is blown into the silo by the first sand blowing device, which can reduce the input of human resources and reduce production costs.

[0019] (3) The present invention is provided with a drying mechanism. Since sandblasting is performed by spraying high-pressure air, the high-pressure air will contain moisture. If it is not dried, the air humidity in the cabinet will increase, thereby affecting the effect of sandblasting.

[0020] (4) The drying mechanism of the present invention is composed of a fan and a heating barrel, which is not only simple in structure but also easy to install.

[0021] (5) The material guiding mechanism of the present invention adopts a screw rod and a screw rod driving assembly, which has a simple structure and is easy to install.

[0022] (6) The present invention is provided with a second dust removal mechanism and a product cleaning mechanism, which can remove dust from the dust cover while cleaning the product, thereby ensuring the cleaning quality of the product.

[0023] (7) The present invention is provided with a second sand blowing mechanism, which further reduces the input of human resources and lowers the production cost.

[0024] (8) The feeding mechanism of the present invention adopts a screw conveyor, which makes the feeding more stable.

[0025] (9) The product cleaning mechanism of the present invention is a plurality of ion air guns, which can not only remove dust on the product, but also remove static electricity on the workpiece, thereby achieving a better cleaning effect.

[0026] (10) The sandblasting assembly of the present invention is composed of a plurality of spray guns, which has a wider and more comprehensive sandblasting range and improves the sandblasting effect.

[0027] (11) The feeding mechanism of the present invention adopts a screw conveyor to ensure the stability of feeding.

[0028] (12) The present invention is provided with a material level meter to ensure that there is enough sand blasting work in the sand storage hopper.

[0029] (13) The lifting mechanism of the present invention adopts a belt-type bucket elevator, which makes the lifting more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein

[0031] Figure 1 It is a schematic diagram of the structure of the present invention.

[0032] Figure 2 It is the front view of the present invention.

[0033] Figure 3 It is a top view of the present invention.

[0034] The reference numerals in the accompanying drawings are:

[0035] Cabinet 1, first dust removal mechanism 2, first dust removal device 2-1, first cyclone separator 2-2, first sand blowing device 2-3, first sand collecting chamber 2-4, first control valve 2-5, second dust removal mechanism 3, lifting mechanism 4, silo 5, material guiding mechanism 6, feeding mechanism 7, cleaning chamber 8, product conveying line 9, product cleaning mechanism 10, sand blasting assembly 11, sand storage hopper 12, rotary vibration filter screen 13, feeding mechanism 14, drying mechanism 15, fan 15-1, heating barrel 15-2, air guide duct 15-3. DETAILED DESCRIPTION

[0036] (Example 1)

[0037] See Figures 1 to 3 The sandblasting machine of this embodiment includes a cabinet 1, a first dust removal mechanism 2 and a lifting mechanism 4.

[0038] A silo 5 with a discharge port is provided at the bottom of the cabinet 1, and a guide mechanism 6 for transporting sand to the discharge port is provided at the bottom of the silo 5. A feeding mechanism 7 connected to the discharge port of the silo 5 is provided below the guide mechanism 6, and the feeding mechanism 7 is preferably a screw conveyor to ensure the stability of feeding. A product conveyor line 9 is provided above the silo 5, which spans both ends of the silo 5 and passes through the cabinet 1. A sandblasting chamber is provided in the cabinet 1 above the product conveyor line 9. A sandblasting assembly 11 is provided in the sandblasting chamber, and the sandblasting assembly 11 preferably adopts a multi-row spaced sandblasting gun to ensure a wider sandblasting range and a more comprehensive coverage. A sand storage hopper 12 connected to the sandblasting chamber is provided above the sandblasting assembly 11. A rotary vibration filter screen 13 connected to the sand storage hopper 12 is provided at the top of the cabinet 1. A feeding mechanism 14 whose outlet is connected to the inlet of the rotary vibration filter screen 13 is provided above the rotary vibration filter screen 13, and the feeding mechanism 14 is preferably a screw conveyor to ensure the stability of feeding. The feeding mechanism 7 is used to transfer the sand material to the lifting mechanism 4. The lifting mechanism 4 is used to transport the sand material to the feeding mechanism 14. The first dust removal mechanism 2 is connected to the sandblasting chamber.

[0039] Further, the first dust removal mechanism 2 includes a first dust removal device 2-1, a first cyclone separator 2-2 and a first sand blowing device 2-3. The first sand blowing device 2-3 includes an air inlet connected to the inner cavity of the first sand collecting chamber 2-4 and a first air inlet control valve for controlling the opening and closing of the air inlet. The first air inlet control valve preferably adopts a solenoid valve, and the air inlet is connected to an external high-pressure air source. The top of the first cyclone separator 2-2 is connected to the first dust removal device 2-1. One side of the first cyclone separator 2-2 is connected to the sandblasting chamber in the cabinet 1. The first sand collecting chamber 2-4 is provided at the bottom of the first cyclone separator 2-2. A first control valve 2-5 for controlling the connection or closing of the first cyclone separator 2-2 and the first sand collecting chamber 2-4 is provided between the first cyclone separator 2-2 and the first sand collecting chamber 2-4. One side of the first sand collecting chamber 2-4 is connected to the first sand blowing device 2-3, and the bottom is connected to the silo 5. The first control valve 2 - 5 is preferably a solenoid valve, which is normally open, closed once every 20 seconds and then opened again. When the solenoid valve is closed, the first air intake control valve is opened to blow the sand in the first sand collecting chamber 2 - 4 into the silo 5 .

[0040] The sandblasting machine of this embodiment also includes a drying mechanism 15 connected to the sandblasting chamber in the cabinet 1. The drying mechanism 15 includes a fan 15-1, a heating barrel 15-2 and an air duct 15-3. A heating wire is provided inside the heating barrel 15-2. One end of the heating barrel 15-2 is connected to the air outlet of the fan 15-1, and the other end is connected to the inlet of the air duct 15-3. The outlet of the air duct 15-3 is connected to the sandblasting chamber in the cabinet 1. The drying mechanism 15 is provided to ensure that the interior of the cabinet 1 is dry and improve the quality of sandblasting.

[0041] Furthermore, the material guiding mechanism 6 comprises a screw rod 6-1 rotatably mounted at the bottom of the silo 5 and a screw rod driving assembly 6-2 for driving the screw rod 6-1 to operate, so as to ensure the stability of the material guiding. The screw rod driving assembly 6-2 is preferably a reduction motor.

[0042] The sandblasting machine of this embodiment also includes a second dust removal mechanism 3. A dust cover 8 is provided on the discharge side of the cabinet 1, which is arranged on the product conveying line 9 and is connected to the second dust removal mechanism 3. A product cleaning mechanism 10 for cleaning the product is provided in the dust cover 8. The product cleaning mechanism 10 is a plurality of ion air guns arranged in the dust cover 8.

[0043] Furthermore, the second dust removal mechanism includes a second dust removal device, a second cyclone separator and a second sand blowing device. The second sand blowing device includes an air inlet connected to the inner cavity of the first sand collecting chamber and a second air inlet control valve for controlling the opening and closing of the air inlet. The air inlet control valve is preferably a solenoid valve, and the air inlet is connected to an external high-pressure air source. The top of the second cyclone separator is connected to the second dust removal device. One side of the second cyclone separator is connected to the sandblasting chamber in the cabinet 1. A second sand collecting chamber is provided at the bottom of the second cyclone separator. A second control valve for controlling the connection or closure of the second cyclone separator and the second sand collecting chamber is provided between the second cyclone separator and the second sand collecting chamber. The second control valve is preferably a solenoid valve, and the first control valve is in a normally open state, closed once every 20 seconds and then opened again. When the solenoid valve is closed, the air inlet control valve is opened to blow the sand material in the second sand collecting chamber into the silo 5.

[0044] Furthermore, a material level meter for monitoring the amount of sand in the sand storage hopper 12 is provided in the sand storage hopper 12 to ensure that there is enough sand in the sand storage hopper 12 for normal operation.

[0045] Furthermore, the lifting mechanism 4 is a bucket elevator. The inlet of the bucket elevator is connected to the outlet of the feeding mechanism 7. The outlet of the bucket elevator is connected to the inlet of the feeding mechanism 14. Preferably, the bucket elevator is tilted toward one side of the discharge port, so that the sand in the bucket of the bucket elevator can be completely thrown out to avoid sand remaining in the bucket, so as to improve the recycling rate of the sand.

[0046] The working process of the sandblasting machine of this embodiment is as follows: first, a worker pours the sand material required for sandblasting into the hopper 5, and the guide mechanism 6 transports the sand material to the outlet of the hopper 5 and enters the feeding mechanism 7. The feeding mechanism 7 then transports the sand material to the inlet of the lifting mechanism 4, and the lifting mechanism 4 transports the sand material to the feeding mechanism 14, and then the feeding mechanism 14 transports the sand material to the rotary vibration filter screen 13 for filtration, and the large unusable sand material is discharged from the rotary vibration filter screen 13, and the filtered fine sand material enters the sand storage hopper 12 to supply sand material to the sandblasting component 11 for sandblasting, and at the same time At the same time, the fan of the first dust removal mechanism 2 works, so that the first cyclone separator 2-2 generates negative pressure, and the dust and sand generated by sandblasting are sucked into the first cyclone separator 2-2. After separation by the first cyclone separator 2-2, the sand will fall into the sand collecting chamber 2-4, and the first sand blowing device 2-3 will blow the sand into the silo 5. Finally, the workpiece after sandblasting passes through the cleaning chamber 8, and is cleaned by the product cleaning mechanism 10 and then sent out. At the same time, the second dust removal mechanism 3 removes dust from the cleaning chamber 8, and the second sand blowing device blows the sand material falling into the sand collecting chamber of the second dust removal mechanism 3 into the silo.

[0047] The working process of the first sand blasting device 2-3 is: the first control valve 2-5 is closed at a fixed time, and the first air inlet valve is opened at a fixed time (the first air inlet valve is opened only when the first control valve is closed), and the high-pressure gas of the high-pressure gas source enters the first sand collecting chamber 2-4, and the sand in the first sand collecting chamber 2-4 is blown into the silo 5 at the bottom of the sand blasting machine cabinet, and then the first air inlet valve is closed at a fixed time, and the first control valve 2-5 is opened at a fixed time, and the first sand collecting chamber 2-4 continues to collect sand materials and waits for the next sand blasting work, and so on, thereby realizing the recycling of sand materials; the working process of the second sand blasting device is consistent with the working process of the first sand blasting device.

[0048] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. 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 sandblasting machine, characterized in that: The invention comprises a cabinet (1), a first dust removal mechanism (2) and a lifting mechanism (4); a silo (5) having a material discharge port is provided at the bottom of the cabinet (1); a material guide mechanism (6) for transporting sand material to the material discharge port is provided at the bottom of the silo (5); a feeding mechanism (7) connected to the material discharge port of the silo (5) is provided below the material guide mechanism (6); a product conveying line (9) spanning across both ends of the silo (5) and passing through the cabinet (1) is provided above the silo (5); a sandblasting chamber is provided in the cabinet (1) above the product conveying line (9); the sandblasting chamber A sandblasting assembly (11) is provided inside; a sand storage hopper (12) connected to the sandblasting chamber is provided above the sandblasting assembly (11); a rotary vibration filter screen (13) connected to the sand storage hopper (12) is provided on the top of the cabinet (1); a feeding mechanism (14) whose outlet is connected to the inlet of the rotary vibration filter screen (13) is provided above the rotary vibration filter screen (13); the feeding mechanism (7) is used to transfer sand material to the lifting mechanism (4); the lifting mechanism (4) is used to transport sand material to the feeding mechanism (14); the first dust removal mechanism (2) is connected to the sandblasting chamber; It also includes a drying mechanism (15) connected to the sandblasting chamber in the cabinet (1); It also includes a second dust removal mechanism (3); a dust removal hood (8) is provided on the discharge side of the cabinet (1), which is arranged on the product conveying line (9) and is connected to the second dust removal mechanism (3); a product cleaning mechanism (10) for cleaning the product is provided in the dust removal hood (8).

2. A sandblasting machine according to claim 1, characterized in that: The first dust removal mechanism (2) comprises a first dust removal device (2-1), a first cyclone separator (2-2) and a first sand blowing device (2-3); the top of the first cyclone separator (2-2) is connected to the first dust removal device (2-1); one side of the first cyclone separator (2-2) is connected to the sand blasting chamber in the cabinet (1); a first sand collecting chamber (2-4) is provided at the bottom of the first cyclone separator (2-2); a first control valve (2-5) for controlling the connection or closing of the first cyclone separator (2-2) and the first sand collecting chamber (2-4) is provided between the first cyclone separator (2-2) and the first sand collecting chamber (2-4); one side of the first sand collecting chamber (2-4) is connected to the first sand blowing device (2-3), and the other side is connected to the silo (5).

3. A sandblasting machine according to claim 1, characterized in that: The drying mechanism (15) comprises a fan (15-1), a heating barrel (15-2) and an air duct (15-3); a heating wire is provided inside the heating barrel (15-2); one end of the heating barrel (15-2) is connected to the air outlet of the fan (15-1), and the other end is connected to the inlet of the air duct (15-3); the outlet of the air duct (15-3) is connected to the sandblasting chamber in the cabinet (1).

4. A sandblasting machine according to claim 1, characterized in that: The material guiding mechanism (6) comprises a screw rod (6-1) rotatably mounted at the bottom of the silo (5) and a screw rod driving assembly (6-2) for driving the screw rod (6-1) to operate.

5. A sandblasting machine according to claim 1, characterized in that: The second dust removal mechanism comprises a second dust removal device, a second cyclone separator and a second sand blowing device; the top of the second cyclone separator is connected to the second dust removal device; one side of the second cyclone separator is connected to the sand blasting chamber in the cabinet (1); a second sand collecting chamber is provided at the bottom of the second cyclone separator; a second control valve for controlling the connection or closing of the second cyclone separator and the second sand collecting chamber is provided between the second cyclone separator and the second sand collecting chamber; one side of the second sand collecting chamber is connected to the second sand blowing device, and the other side is connected to the silo (5).

6. A sandblasting machine according to claim 1, characterized in that: The product cleaning mechanism (10) is a plurality of ion air guns arranged in the dust removal cover (8).

7. A sandblasting machine according to claim 1, characterized in that: The feeding mechanism (14) is a screw conveyor.

8. A sandblasting machine according to claim 1, characterized in that: The lifting mechanism (4) is a bucket elevator; the inlet of the bucket elevator is connected to the outlet of the feeding mechanism (7); and the outlet of the bucket elevator is connected to the inlet of the feeding mechanism (14).

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