CN210968484U

CN210968484U - Automatic conveying type sand blasting machine for aluminum single plates

Info

Publication number: CN210968484U
Application number: CN201921489555.1U
Authority: CN
Inventors: 李江; 尚耀
Original assignee: Changzhou Taisheng Mechanical Equipment Co ltd
Current assignee: Changzhou Taisheng Mechanical Equipment Co ltd
Priority date: 2019-09-07
Filing date: 2019-09-07
Publication date: 2020-07-10
Anticipated expiration: 2029-09-07

Abstract

The utility model discloses an automatic transport formula sand blasting machine of aluminium veneer, including the sandblast room, the rollgang, the clean room, dust collector and sand return device, dust collector includes first cyclone, first main dust absorption pipe, first pair dust absorption pipe, the vice dust absorption pipe of second, first conveyer pipe and first clean room, first cyclone fixed mounting is in the top of sandblast room, the top of sandblast room all is provided with first dust absorption mouth in the top both sides, first dust absorption mouth is connected to first main dust absorption pipe through first pair dust absorption union coupling, second dust absorption mouth is connected to first main dust absorption pipe through the vice dust absorption union coupling of second, the other end and the first cyclone fixed connection of first main dust absorption pipe, first cyclone's top is connected with first clean room through first conveyer pipe, first clean room is located one side of sandblast room. The utility model discloses a technique of sandblast room with gas bag and adjusting device to can in time be with the inside raise dust of sandblast machine and the clean up effect of impurity.

Description

Automatic conveying type sand blasting machine for aluminum single plates

Technical Field

The utility model belongs to the technical field of material surface treatment's technique and specifically relates to an automatic formula sand blasting machine that carries of aluminium veneer is related to.

Background

The sand blasting machine is casting equipment which blows out quartz sand at high speed by utilizing compressed air to clean or strengthen the surface of a casting, can timely remove all dirt such as rust on the surface of a workpiece, can improve the finish of the workpiece after being cleaned by a cleaning chamber, can expose the workpiece to be uniform and consistent metal natural color, and enables the workpiece to be more attractive.

Chinese patent with publication number CN201856170U discloses a sand blasting machine for blasting sand to a workpiece, which comprises a supporting chain and a sand blasting room, wherein the sand blasting room is rectangular frame-shaped and provided with an inlet and an outlet, the supporting chain is provided with a clamp, the workpiece is fixedly clamped on the clamp, the supporting chain penetrates through the inlet and penetrates out of the outlet, a sand blasting mechanism is arranged in the sand blasting room and is located above the workpiece, the sand blasting mechanism comprises a shaking mechanism, a storage hopper and a spray gun, the shaking mechanism comprises a motor, a belt, a rotary rod and a suspension arm, the rotary rod is horizontally placed, the suspension arm is vertically placed, one end of the suspension arm is pivoted on the rotary rod, the other end of the suspension arm is connected with the spray gun, and the spray gun is fixed on the suspension arm and is communicated with the storage hopper, the motor passes through the belt drives the rotary rod rotates, the rotary rod drives hang the arm and rotate, and then drive the spray gun rotates. The utility model discloses abrasive material high-usage, productivity height and can continuity of operation.

The above prior art solutions have the following drawbacks: in the process of actual use, a large amount of quartz sand and cleaned dirt are remained on the surface of a workpiece subjected to grinding, and the workpiece is directly transported outwards without being cleaned, so that a large amount of dust can be generated, and the environment is polluted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can be to the sand blasting machine of a high-efficient dust removal of the filth and the quartz sand of workpiece surface in time clearance.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an automatic conveying type sand blasting machine for aluminum veneers comprises a sand blasting chamber, a conveying roller way, a cleaning chamber, a dust removing device and a sand returning device, wherein the sand blasting chamber is positioned above the conveying roller way, one side of a feed inlet of the sand blasting chamber is a shielding cover plate, one side of a discharge outlet of the sand blasting chamber is the cleaning chamber, the dust removing device is positioned above the sand blasting chamber, the sand returning device is positioned below the conveying roller way, a spray gun is arranged in the sand blasting chamber, a feed bin is arranged above the sand blasting chamber, the dust removing device comprises a first cyclone separator, a first main dust suction pipe, a first auxiliary dust suction pipe, a second auxiliary dust suction pipe, a first conveying pipe and a first dust removal chamber, the first cyclone separator is fixedly arranged above the sand blasting chamber, first dust suction ports are arranged on two sides of the top of the sand blasting chamber, and a second dust suction port is arranged above the shielding cover plate, first dust absorption mouth is connected to first main dust absorption pipe through first pair dust absorption union coupling, second dust absorption mouth is connected to first main dust absorption pipe through the vice dust absorption union coupling of second, the other end of first main dust absorption pipe with first cyclone fixed connection, first cyclone's top is passed through first conveyer pipe with first clean room is connected, first clean room is located one side of sandblast room, the top that sandblast room is close to discharge gate one side still is provided with second cyclone, the top of clean room is provided with the third dust absorption mouth, the third dust absorption mouth through the vice dust absorption pipe of third with second cyclone links to each other, the top of second cyclone pass through the second conveyer pipe with the second clean room is connected, the second clean room with first clean room is placed side by side.

Through adopting above-mentioned technical scheme, be located first cyclone and the second cyclone of sandblast room top both sides and carry out abundant absorption with sandblast room, the raise dust that shelters from in apron and the clearance room, then carry respectively through first conveyer pipe and second conveyer pipe and carry out in time the clearance to the inside of first clean room and second clean room, improve sandblast machine's dust collection efficiency.

Further, the below of first cyclone and second cyclone all passes the roof of sandblast room to the feed opening has been seted up, one side of feed opening is provided with L type fixed bolster, L type fixed bolster articulates there is the shielding plate, shielding plate one side and feed opening butt, with the other end fixedly connected with balancing weight of one side.

Through adopting above-mentioned technical scheme, when the inside accumulation's of first cyclone and second cyclone quartz sand is less, under the pressure of balancing weight, the shielding plate is stifled dead with the feed opening, when the quartz sand quality is great, opens the shielding plate, enters into in the husky device of returning of below.

Further, the sand return device comprises a sand hopper, a first packing auger, a second packing auger, a lifting machine and a third packing auger, wherein the sand hopper is positioned below the conveying roller way, the first packing auger is fixedly installed below the sand hopper, the first packing auger is arranged along the length direction of the conveying roller way, the bottom of the first packing auger is connected with the second packing auger, the second packing auger is perpendicular to the first packing auger, the output end of the second packing auger is fixedly connected with the bottom of the lifting machine, the output end of the lifting machine is connected with the feeding bin fixedly connected with the third packing auger, and the top of the lifting machine is also communicated with the first main dust collection pipe through a fourth auxiliary dust collection pipe.

Through adopting above-mentioned technical scheme, the quartz sand that collects in the sand fill is held through first auger and second hank and is carried, then carries the quartz sand that collects to the inside of feeder hopper through the third auger through the lifting machine, and the inside raise dust enters into the inside of first cyclone through the fourth vice dust absorption pipe and the first main dust absorption pipe at top.

Furthermore, the inside of clearance room is provided with air knife pipe along width direction, one side of clearance room is provided with the fan, the fan pass through the trachea with the air knife pipe is connected, is located the clearance room below still be connected with the vice dust absorption pipe of fifth in the sand fill, the vice dust absorption pipe of fifth passes the lateral wall of sand fill and with the vice dust absorption pipe of third is linked together, the vice dust absorption pipe of fifth is in the pipeline in the sand fill has seted up the fourth dust absorption mouth.

Through adopting above-mentioned technical scheme, the air knife pipe blows off the quartz sand and the impurity on workpiece surface under the drive of fan, then adsorbs the second cyclone through the vice dust absorption pipe of third through the vice dust absorption pipe of fifth and separates the aftertreatment.

Further, adjusting device includes driving motor, eccentric wheel, regulating block, connecting rod, L type rocking pole and rocking shaft, driving motor is located the top of sandblast room, driving motor's output with eccentric wheel fixed connection, the eccentric wheel is kept away from one side of driving motor sets up the regulating block, the regulating block passes through the connecting rod is connected with L type rocking pole, the turning point department of L type rocking pole with rocking shaft fixed connection, the rocking shaft runs through the sandblast room and rotates with the outer wall of sandblast room opposite side and be connected, the middle part of rocking shaft with spray gun fixed connection.

Through adopting above-mentioned technical scheme, the eccentric wheel rotates and drives the regulating block and be circular motion, is driving L type rocking rod through the connecting rod and is being circular motion around the pin joint, and reciprocating rotary motion about being with L type rocking rod fixed connection's rocking shaft, rocking shaft fixed connection's spray gun is facing to the work piece and is swaying left and right sides the rotation and erupt compressed air, with the impurity and the quartz sand clean up on workpiece surface, efficiency is higher.

Furthermore, the surface of the eccentric wheel is provided with an arc-shaped groove hole along the circumferential direction, the longitudinal section of the adjusting block is in the shape of an isosceles triangle, the bottom corners of the adjusting block are provided with pin shafts, one of the pin shafts is inserted into the arc-shaped groove hole, the other pin shaft is fixed on the eccentric wheel, the top corner of the adjusting block is provided with a connecting rod, and the connecting rod penetrates through the adjusting block to connect the eccentric wheel and the connecting rod together.

Through adopting above-mentioned technical scheme, the rotation direction of regulation Y type swing rod that is isosceles triangle's eccentric wheel can be better when the pivoted guarantees that the spray gun is more even following the rotation of Y type swinging arms, further improves the efficiency of clearance.

Furthermore, L type rocking rod is kept away from the one end of connecting rod articulates there is first synchronizing rod, first synchronizing rod has a plurality of second synchronizing rod along the even articulated a plurality of length direction, the inside width direction evenly distributed along the rollgang of sandblast room has a plurality of the rocking shaft, rocking shaft one end with the sandblast room is close to the inner wall of sandblast room one side rotates the connection, and the other end passes the lateral wall of sandblast room with second synchronizing rod fixed connection.

Through adopting above-mentioned technical scheme, a plurality of evenly distributed's rocking shaft is even the rotation about under the drive of first synchronizing rod and second synchronizing rod, and the spray gun work efficiency that is located the rocking shaft top is higher.

Further, the rocking shaft both ends all are provided with the bearing plate, the bearing plate with the outer wall fixed connection of sandblast room.

Through adopting above-mentioned technical scheme, the bearing plate has improved the stability of rocking shaft in the pivoted, guarantees the normal operation of equipment.

To sum up, the beneficial effects of the utility model are that:

1. the technology of the dust removal device with the first cyclone separator and the second cyclone separator is adopted, so that the effects of cleaning the raised dust and impurities in the sand blasting chamber, the shielding cover plate and the cleaning chamber in time are achieved;

2. the technology of the adjusting device with the eccentric wheel, the L type swing rod and the swing shaft is adopted, so that the left and right uniform rotation can be generated, and the working efficiency of the spray gun is improved;

3. the technology of the sand returning device is adopted, so that the cleaned quartz sand can be recycled, and the utilization rate of the quartz sand is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a rear view of the present embodiment.

Fig. 3 is a partially enlarged schematic structural view of a portion a in fig. 1.

Fig. 4 is a schematic sectional view in the direction B-B in fig. 1.

Fig. 5 is a partially enlarged structural view of a portion C in fig. 4.

In the figure, 1, a sand blasting chamber, 11, a shielding cover plate, 12, a spray gun, 13, a bearing seat plate, 14, an air bag, 141, a connecting pipe, 15, a feeding bin, 2, a conveying roller way, 3, a cleaning chamber, 31, a fan, 32, an air pipe, 33, a wind knife pipe, 4, a dust removal device, 41, a first cyclone separator, 42, a first main dust suction pipe, 43, a first auxiliary dust suction pipe, 44, a second auxiliary dust suction pipe, 45, a first conveying pipe, 46, a first dust removal chamber, 47, a first dust suction port, 48, a second dust suction port, 49, a second cyclone separator, 410, a third dust suction port, 411, a third auxiliary dust suction pipe, 412, a second conveying pipe, 413, a second dust removal chamber, 414, a fourth auxiliary dust suction pipe, 415, a fifth auxiliary dust suction pipe, 416, a fourth dust suction port, 5, a sand returning device, 51, a sand hopper, 52, a first auger, 53, a second dust removal chamber, 54, 55, a third dust removal chamber, a fourth dust removal pipe, a fifth auxiliary dust removal pipe, a third dust removal pipe, a fourth dust removal device, a third dust removal device, a fourth dust removal device, a third dust removal device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): referring to fig. 1, for the utility model discloses an automatic formula sand blasting machine that carries of aluminium veneer, including sandblast room 1, rollgang 2, clean-up room 3, dust collector 4 and return husky device 5. The lower part of the sand blasting chamber 1 is provided with a conveying roller way 2, the lower part of the conveying roller way 2 is connected with a sand returning device 5, and the upper part of the sand blasting chamber 1 is connected with a dust removing device 4. An air bag 14 (see fig. 5) is arranged above the sand blasting chamber 1, the output end of the air bag 14 penetrates through the top of the sand blasting chamber 1 through a connecting pipe 141 (see fig. 5) and is connected with a spray gun 12 (see fig. 5), a feed inlet of the sand blasting chamber 1 is fixedly connected with a shielding cover plate 11, the shielding cover plate 11 not only ensures that a workpiece can normally pass through the sand blasting chamber 1, but also can prevent dust in the shielding chamber from being discharged from the feed inlet of the sand blasting chamber 1, and a discharge outlet of the sand blasting chamber 1 is fixedly connected with a cleaning chamber 3 (see fig. 2); the conveying roller way 2 conveys the workpiece to the sand blasting chamber 1 for polishing, the polished workpiece directly enters the sand blasting chamber 1 through the conveying roller way 2 for cleaning, the dust generated during the workpiece processing is treated through the dust removing device 4, and the dust is recycled through the material returning device at the bottom; the observation window has all been seted up to the both sides of sandblast room 1, and the staff of being convenient for observes the inside operating condition of sandblast room 1, is convenient for in time adjust and maintain.

Referring to fig. 3 and 5, the sandblasting chamber 1 is further provided with an adjusting device 7, the adjusting device 7 comprises a driving motor 71, an eccentric wheel 72, an adjusting block 73, a connecting rod 74, a L type shaking rod 75 and a shaking shaft 76, the driving motor 71 is located on one side of the sandblasting chamber 1 far away from the sandblasting chamber 1, the output end of the driving motor 71 is fixedly connected with the eccentric wheel 72, the eccentric wheel 72 is provided with an arc-shaped slotted hole 721 along the circumferential direction, the longitudinal section of the adjusting block 73 is in an isosceles triangle shape, two bottom angles of the adjusting block 73 are rotatably connected with the eccentric wheel 72 through a pin 731, one pin 731 penetrates through the arc-shaped slotted hole 721 and is slidably connected with the arc-shaped slotted hole 721, the other pin 731 is fixedly connected with one side of the eccentric wheel 72 far away from the arc-shaped slotted hole 721, the top angle of the adjusting block 73 is fixedly connected with the connecting rod 74 through a connecting rod 732, the other end of the connecting rod 74 is fixedly connected with the L type shaking rod 75, the other end of the L type shaking rod 75 is connected with a shaking shaft 76, the other end of the L type shaking rod 75 is connected with a horizontally arranged first synchronizing rod 77, the first synchronizing rod 77 is uniformly connected with a plurality of second synchronizing rods 78 along the shaking rods 78, the middle of the second synchronizing rod 76, the spraying gun 76 is connected with a high-efficiency adjusting device.

The swing shaft 76 penetrates through the sand blasting chamber 1 along the length direction of the conveying roller way 2, bearing bases are arranged at two ends of the swing shaft, the stability of the swing shaft 76 is improved through the bearing bases, a fixed support is arranged in the middle of the swing shaft 76, and a spray gun 12 is fixedly connected to the fixed support, so that the stability of the spray gun 12 is improved; the tail part of the spray gun 12 is provided with a connecting pipe 141, and the connecting pipe 141 passes through the top part of the sand blasting chamber 1 and is connected with the air bag 14; to ensure that the rotation of the rocker shaft 76 does not affect the normal operation of the spray gun 12, a hose is used for the connection tube 141.

Referring to fig. 2 and 3, the dust removing device 4 includes a first cyclone 41, a first main dust suction pipe 42, a first sub dust suction pipe 43, a second sub dust suction pipe 44, a first duct 45, a first dust removal chamber 46, a first dust suction port 47, a second dust suction port 48, a second cyclone 49, a third dust suction port 410, a third sub dust suction pipe 411, a second duct 412, a second dust removal chamber 413, a fourth sub dust suction pipe 414, a fifth sub dust suction pipe 415, and a fourth dust suction port 416. A first cyclone separator 41 and a second cyclone separator 49 are arranged on two sides above the sand blasting chamber 1, the input end of the first cyclone separator 41 is connected with a first auxiliary dust suction pipe 43, a second auxiliary dust suction pipe 44 and a fourth dust suction pipe, the first auxiliary dust suction pipe 43 comprises two pipes which are respectively connected with the inside of the sand blasting chamber 1 through first dust suction ports 47 positioned on two sides of the top of the sand blasting machine, the second auxiliary dust suction pipe 44 is connected with the top of the shielding cover plate 11 through a second dust suction port 48, a third auxiliary dust suction pipe 411 is connected with an output port of a lifting machine 54, the top of the first cyclone separator 41 is connected with a first dust removal chamber 46 through a first conveying pipe 45, and raised dust in the sand blasting chamber 1 is cleaned through the first cyclone separator 41; second cyclone 49 is located the top of sandblaster and is close to one side of clean room 3, second cyclone 49 links to each other through the top of third vice dust absorption pipe 411 with clean room 3, link to each other with the sand hopper 51 of clean room 3 below through the vice dust absorption pipe 415 of fifth, the vice dust absorption pipe 415 of fifth has seted up fourth dust absorption mouth 416 in sand hopper 51 is inside, the top of second cyclone 49 is passed through second conveyer pipe 412 and is linked to each other with second clean room 413, clear up the raise dust of clean room 3 inside through second cyclone 49.

The lower portions of the first cyclone separator 41 and the second cyclone separator 49 penetrate through the top plate of the sand blasting chamber 1 to be provided with a feed opening 6, one side of the feed opening 6 is welded with an L-shaped fixed support 61, one end, far away from the feed opening 6, of the L-shaped fixed support 61 is hinged with a baffle plate 62, one side of the baffle plate 62 is abutted to the feed opening 6, the other end of the same side is fixedly connected with a balancing weight 63, the hinged point of the L-shaped fixed support 61 and the baffle plate 62 is located in the middle of the baffle plate 62, the opening and closing of the feed opening 6 are controlled through the balancing weight 63, when the accumulated mass of sand particles in the feed opening is increased, the baffle plate 62 is opened, then the sand particles fall down and are recycled through a sand hopper 51, and when the mass of the sand particles is smaller, the feed opening 6 is sealed under the action of the balancing weight.

Referring to fig. 2 and 4, a wind knife pipe 33 is arranged inside the cleaning chamber 3 along the width direction, a fan 31 is arranged on one side of the cleaning chamber 3, the fan 31 is connected with the wind knife pipe 33 through a gas pipe 32, and the fan 31 drives the wind knife pipe 33 through the wind pipe to blow off the quartz sand and impurities left on the surface of the processed workpiece.

Referring to fig. 1 and 2, the sand returning device 5 comprises a sand hopper 51, a first packing auger 52, a second packing auger 53, a lifter 54 and a third packing auger 55. The sand hopper 51 is located below the conveying roller way 2, the first auger 52 is fixedly installed below the sand hopper 51, the first auger 52 is arranged along the length direction of the conveying roller way 2, the bottom of the first auger 52 is connected with the second auger 53, the second auger 53 is perpendicular to the first auger 52, the output end of the second auger 53 is fixedly connected with the bottom of the elevator 54, the output end of the elevator 54 is fixedly connected with the feeding bin 15 through the third auger 55, the top of the elevator 54 is also communicated with the first main dust suction pipe 42 through the fourth auxiliary dust suction pipe 414, the first auger 52 arranged in parallel with the conveying roller way 2 can collect the quartz sand and impurities in the collecting hopper, and the quartz sand and the impurities are conveyed to the feeding hopper again through the second auger 53 and the elevator 54 under the driving of the internal spiral belt for secondary utilization.

The implementation principle of the above embodiment is as follows:

under the drive of the driving motor 71, the eccentric wheel 72 makes a circular motion along the circle center, and the eccentric wheel 72 rotates to be connected with the adjusting block 73 to make a reciprocating motion, so that the shaking shaft 76 hinged with the L type shaking rod 75 and the shaking shaft 76 hinged with the second synchronizing rod 78 make reciprocating rotation motions together, the spray gun 12 can uniformly spray compressed air to the workpiece, blow off impurities and quartz sand on the surface of the workpiece, enter the collecting hopper, and enter the sand blasting chamber 1 again through the material returning device for secondary use.

The device simple structure, clean efficiency is higher, can greatly improve the operational environment in the factory building.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides an automatic transport formula sand blasting machine of aluminium veneer, includes sandblast room (1), rollgang (2), clean room (3), adjusting device (7), dust collector (4) and returns husky device (5), sandblast room (1) is located the top of rollgang (2), one side of the feed inlet of sandblast room (1) is for sheltering from apron (11), one side of the discharge gate of sandblast room (1) does clean room (3), being located of dust collector (4) the top of sandblast room (1), it is located to return husky device (5) the below of rollgang (2), be provided with spray gun (12) in sandblast room (1), the top of sandblast room (1) is provided with feed bin (15), its characterized in that: dust collector (4) includes first cyclone (41), first main dust absorption pipe (42), first vice dust absorption pipe (43), the vice dust absorption pipe of second (44), first conveyer pipe (45), first clean room (46) and second clean room (413), first cyclone (41) fixed mounting in the top of sandblast room (1), the top of sandblast room (1) all is provided with first dust absorption mouth (47) in top both sides, the top of sheltering from apron (11) is provided with second dust absorption mouth (48), first dust absorption mouth (47) are connected to first main dust absorption pipe (42) through first vice dust absorption pipe (43), second dust absorption mouth (48) are connected to first main dust absorption pipe (42) through the vice dust absorption pipe of second (44), the other end of first main dust absorption pipe (42) with first cyclone (41) fixed connection, the top of first cyclone (41) is passed through first conveyer pipe (45) with first clean room (46) are connected, first clean room (46) are located the one side of sandblast room (1), the top that sandblast room (1) is close to discharge gate one side still is provided with second cyclone (49), the top of clean-up room (3) is provided with third dust absorption mouth (410), third dust absorption mouth (410) through third vice dust absorption pipe (411) with second cyclone (49) link to each other, the top of second cyclone (49) through second conveyer pipe (412) with second clean room (413) are connected, second clean room (413) with first clean room (46) are placed side by side.

2. The automatic conveying type sand blasting machine for the aluminum single plates according to claim 1 is characterized in that the lower portions of the first cyclone separator (41) and the second cyclone separator (49) penetrate through a top plate of the sand blasting chamber (1) and are provided with a feed opening (6), an L-shaped fixing support (61) is arranged on one side of the feed opening (6), a shielding plate (62) is hinged to the L-shaped fixing support (61), one side of the shielding plate (62) is abutted to the feed opening (6), and the other end of the same side of the shielding plate (62) is fixedly connected with a balancing weight (63).

3. The automatic conveying type sand blasting machine for the aluminum single plates as claimed in claim 2, wherein: the sand returning device (5) comprises a sand hopper (51), a first packing auger (52), a second packing auger (53), a lifter (54) and a third packing auger (55), the sand hopper (51) is positioned below the conveying roller way (2), the first packing auger (52) is fixedly arranged below the sand hopper (51), the first auger (52) is arranged along the length direction of the conveying roller way (2), the bottom of the first packing auger (52) is connected with the second packing auger (53), the second packing auger (53) is vertical to the first packing auger (52), the output end of the second packing auger (53) is fixedly connected with the bottom of the elevator (54), the output end of the elevator (54) is fixedly connected with the feeding bin (15) through the third packing auger (55), the top of the lift (54) is also in communication with the first main suction duct (42) via a fourth secondary suction duct (414).

4. The automatic conveying type sand blasting machine for the aluminum single plates as claimed in claim 3, wherein: the inside of clearance room (3) is provided with air knife pipe (32) along width direction, one side of clearance room (3) is provided with fan (31), fan (31) through trachea (33) with air knife pipe (32) are connected, are located clearance room (3) below still be connected with the vice dust absorption pipe of fifth (415) in sand hopper (51), the vice dust absorption pipe of fifth (415) pass the lateral wall of sand hopper (51) and with the vice dust absorption pipe of third (411) is linked together, the vice dust absorption pipe of fifth (415) is in fourth dust absorption mouth (416) has been seted up on the pipeline in sand hopper (51).

5. The automatic conveying type sand blasting machine for the aluminum veneers as claimed in claim 1, characterized in that the adjusting device (7) comprises a driving motor (71), an eccentric wheel (72), an adjusting block (73), a connecting rod (74), an L-type rocking rod (75) and a rocking shaft (76), wherein the driving motor (71) is positioned above the sand blasting chamber (1), the output end of the driving motor (71) is fixedly connected with the eccentric wheel (72), the adjusting block (73) is arranged on one side of the eccentric wheel (72) far away from the driving motor (71), the adjusting block (73) is connected with the L-type rocking rod (75) through the connecting rod (74), the turning point of the L-type rocking rod (75) is fixedly connected with the rocking shaft (76), the rocking shaft (76) penetrates through the sand blasting chamber (1) and is rotatably connected with the inner wall on the other side of the sand blasting chamber (1), and the middle part of the rocking shaft (76) is fixedly connected with the spray gun (12).

6. The automatic conveying type sand blasting machine for the aluminum single plates as claimed in claim 5, wherein: circular-arc slotted holes (721) are formed in the surface of the eccentric wheel (72) in the circumferential direction, the longitudinal section of the adjusting block (73) is in an isosceles triangle shape, pin shafts (731) are arranged at the positions of the bottom angles of the adjusting block (73), one of the pin shafts (731) is inserted into the circular-arc slotted holes (721), the other pin shaft (731) is fixed to the eccentric wheel (72), a connecting rod (732) is arranged at the position of the top angle of the adjusting block (73), and the connecting rod (732) penetrates through the adjusting block to connect the eccentric wheel (72) and the connecting rod (74) together.

7. The automatic conveying type sand blasting machine for the aluminum veneers according to claim 5 is characterized in that one end, far away from the connecting rod (74), of the L-type swing rod (75) is hinged to a first synchronizing rod (77), the first synchronizing rod (77) is hinged to a plurality of second synchronizing rods (78) uniformly along the length direction, a plurality of swing shafts (76) are uniformly distributed in the sand blasting chamber (1) along the width direction of the conveying roller way (2), one end of each swing shaft (76) is rotatably connected with the inner wall, close to one side of the sand blasting chamber (1), and the other end of each swing shaft penetrates through the side wall of the sand blasting chamber (1) and is fixedly connected with the corresponding second synchronizing rod (78).

8. The automatic conveying type sand blasting machine for the aluminum single plates as claimed in claim 5, wherein: bearing seat boards (13) are arranged at two ends of the rocking shaft (76), and the bearing seat boards (13) are fixedly connected with the outer wall of the sand blasting chamber (1).