Aluminum profile sand blasting machine

Abstract

The utility model discloses an aluminum profile sand blasting machine which comprises a sand storage bin, a sand blasting chamber and a recovery bin, the sand blasting chamber is provided with a sand blasting gun, the sand blasting gun is communicated with the sand storage bin, the recovery bin is arranged below the sand blasting chamber, and the aluminum profile sand blasting machine is characterized in that two recovery channels are arranged between the sand storage bin and the recovery bin; two sand collecting boxes are arranged in the recycling bin, are connected with driving elements and are used for driving the sand collecting boxes to move back and forth in the recycling channel; a workpiece fixing mechanism is arranged in the sand blasting chamber, the workpiece fixing mechanism is connected with a rotating mechanism, the rotating mechanism can drive the workpiece fixing mechanism to rotate, and the sand blasting chamber is connected with a smoke dust collecting mechanism. The utility model has the beneficial effects that: 1, the driving element, the recovery channel and the sand collection box are matched to convey the frosted sand back to the sand storage bin, the structure is simple, the operation is convenient, and the production cost is lower;

Description

Technical Field

[0001] The utility model belongs to the field of aluminum profile processing equipment, and particularly relates to an aluminum profile sandblasting machine. Background Art

[0002] The sandblasting machine uses compressed air mixed with abrasive sand to impact and rub the surface of the workpiece, so as to increase the adhesion of the surface to the coating. The traditional sandblasting machine is manually fed with sand, and the used abrasive sand is also manually processed, which is time-consuming and laborious. After running out of abrasive sand, it has to stop work to add abrasive sand, reducing the work efficiency. There is an automatic recycling sandblasting machine in the prior art, but its structure is complex, the equipment cost is high, increasing the investment funds for the equipment and being inconvenient to install. Summary of the Utility Model

[0003] To solve the above problems, the utility model provides an aluminum profile sandblasting machine, which includes a sand storage bin, a sandblasting chamber and a recycling bin. The sandblasting chamber is provided with a sandblasting assembly, and the sandblasting assembly is communicated with the sand storage bin. There is a recycling bin below the sandblasting chamber. A recycling channel is arranged between the sand storage bin and the recycling bin. A sand collecting box is arranged in the recycling bin. The sand collecting boxes are all connected with a driving element for driving the sand collecting box to move back and forth in the recycling channel. A workpiece fixing mechanism is arranged in the sandblasting chamber. The workpiece fixing mechanism is connected with a rotating mechanism, and the rotating mechanism can drive the workpiece fixing mechanism to rotate. The sandblasting chamber is connected with a dust collecting mechanism.

[0004] One end of the recycling channel located in the recycling bin has an inlet, and the size of the inlet is adapted to the size of the sand collecting box; an outlet is arranged at one end of the recycling channel close to the sand storage bin, and the outlet is communicated with the sand storage bin. The sand collecting box pours the abrasive sand in the box into the sand storage bin through the outlet.

[0005] Preferably, a slide rail is arranged in the recycling channel, and the sand collecting box moves in the slide rail. Fixing the sand collecting box to the slide rail can make the operation process more stable.

[0006] Preferably, the driving element includes a driving motor, the driving motor is fixed in the recycling channel, and the driving motor is connected with a traction rope, and the traction rope is connected to the sand collecting box.

[0007] Of course, the driving element can also be a driving motor / motor installed on the sand collecting box. A driving wheel is also arranged on the sand collecting box. The driving motor / motor is connected with the driving wheel through a suitable transmission element and a transmission arm; a telescopic baffle is also arranged in the recycling channel. When the sand collecting box travels to the outlet, the telescopic baffle extends out to support the sand collecting box to fix the sand collecting box.

[0008] It can also be other driving elements for driving the sand collecting box to move in the recycling channel.

[0009] Preferably, a first recovery channel and a second recovery channel are respectively provided between the sand storage bin and the recovery bin; there are a first sand collection box and a second sand collection box respectively. The driving element includes a first driving motor which is fixed to the first recovery channel. The first driving motor is connected with a first traction rope, the first traction rope is connected to the first sand collection box, the first sand collection box is connected with a first elastic return rope, and the first elastic return rope and the first traction rope are symmetric about the central plane of the sand collection box in the vertical direction; the driving element further includes a second driving motor which is fixed to the second recovery channel. The second driving motor is connected with a second traction rope, the second traction rope is connected with the second sand collection box, the second sand collection box is connected with a second elastic return rope, and the second elastic return rope and the second traction rope are symmetric about the central plane of the second sand collection box in the vertical direction; the first / second elastic return rope is an elastic rope, and its elasticity does not need to be too large. It only needs to assist the first / second sand collection box to smoothly return to the recovery bin when the first / second motor releases the first / second traction rope. Multiple first / second traction ropes and first / second elastic return ropes can be provided to ensure the stability of the movement of the first / second sand collection box.

[0010] A filter screen is provided at the bottom of the sand collection box, and a debris box is provided below the filter screen. The abrasive sand after the sandblasting process falls onto the filter screen. The complete abrasive sand cannot pass through the filter screen and is left in the sand collection box, while the broken abrasive sand debris passes through the filter screen and falls into the debris box below.

[0011] Preferably, a stirring assembly is provided in the sand collection box, which is beneficial to the full separation of the debris and the complete abrasive sand.

[0012] The sand collection box is provided with a cover body, and the cover body includes a first half cover and a second half cover. Both the first half cover and the second half cover are connected with a flip motor. Both the first half cover and the second half cover can be independently opened or closed under the control of the flip motor. The first half cover and the second half cover are in the form of double doors. When the sand collection box is connected to the sand storage bin to pour the abrasive sand, since the height of the sand collection box will increase after the first half cover and the second half cover are opened and thus exceed the acceptance size of the recovery channel, the first half cover and the second half cover will extend into the interior of the sand storage bin through the outlet. The inner walls of the first half cover and the second half cover can be set into an inwardly concave tile-shaped structure, which can play the role of a channel to guide the abrasive sand to slide and prevent the abrasive sand from spilling to other positions.

[0013] The flip motor can be set outside the sand collection box or inside the sand collection box;

[0014] If it is set inside the sand collection box, it can be set that the flip motor is connected with a worm, the worm is connected with a cooperating worm wheel, an internal thread is provided in the worm wheel, a lead screw is connected inside the worm wheel, the lead screw is perpendicular to the first half cover or the second half cover, and the rotation of the flip motor makes the lead screw rise to push open the first half cover or the second half cover.

[0015] If the flip - cover motor is arranged outside the sand - collecting box, it can be set as follows: the first half - cover or the second half - cover is hinged to the sand - collecting box, a gear tooth is arranged at the hinged end of the first half - cover or the second half - cover, the flip - cover motor is connected with a gear that meshes with the first half - cover or the second half - cover, and the flip - cover motor rotates to drive the first half - cover or the second half - cover to open through the gear.

[0016] Of course, it can also be other setting methods that can achieve automatic flipping of the cover.

[0017] Preferably, a lifting component is arranged in the recycling channel, the position of the lifting component is opposite to the outlet, the bottom plate of the sand - collecting box is hinged to the sand - collecting box, and when the sand - collecting box reaches the outlet position, the lifting component raises the bottom plate of the sand - collecting box by a certain angle.

[0018] The lifting component can also be arranged at one end of the bottom plate of the sand - collecting box. The lifting component raises one end of the bottom plate of the sand - collecting box and forms an inclined angle, which is beneficial to the sand in the sand - collecting box falling into the sand storage bin more quickly.

[0019] The sand - blasting component includes a sand - blasting gun and a gas source. Both the sand - blasting gun and the gas source are connected to a gas compression element. The gas source is an inert gas source. Using inert gas can reduce the risk of dust explosion.

[0020] The dust - collecting mechanism includes an exhaust pipe. The exhaust pipe is connected with a fan. The fan is connected with a sedimentation component. The sedimentation component is connected to the gas source. The air after dust treatment can be recycled again, saving production costs.

[0021] The workpiece fixing mechanism includes fixing clamps. Two fixing clamps can be arranged. The fixing clamps are connected to the sand - blasting chamber through a rotating shaft. The rotating shaft is connected with a rotating mechanism. A clamping motor is arranged on the fixing clamp, and the clamping motor controls the clamping and opening of the fixing clamp, which is convenient for the installation and fixing of aluminum parts.

[0022] The beneficial effects of the present utility model are as follows:

[0023] 1. The structure of this application is simple and easy to operate. By using a driving element, the recycling channel and the sand - collecting box cooperate to transport the sand back to the sand storage bin again, which not only saves the use cost but also saves the production cost of the equipment.

[0024] 2. A tile - shaped cover is arranged on the sand - collecting box. When the cover is closed, it can prevent the sand from leaking during transportation. When the cover is opened, it can also act as a sand channel to guide the sand to fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain this application and do not constitute an improper limitation to the present utility model.

[0026] Figure 1Schematic diagram of the overall front structure of Embodiment 1;

[0027] Figure 2 Schematic diagram of the overall back structure of Embodiment 1;

[0028] Figure 3 Schematic sectional view of the internal structure of Embodiment 1;

[0029] Figure 4 Partial enlarged view of Embodiment 1;

[0030] Figure 5 Schematic diagram of the sand collecting box structure of Embodiment 1;

[0031] Figure 6 Schematic sectional view of the internal structure of Embodiment 2;

[0032] In the drawings: 1 - sand storage bin, 2 - sand blasting chamber, 3 - recycling bin, 4 - recycling channel, 5 - sand collecting box, 6 - driving element, 7 - soot collection mechanism, 21 - sand blasting assembly, 211 - sand blasting gun, 212 - gas compression element, 22 - workpiece fixing mechanism, 221 - fixing clamp, 41 - first recycling channel, 42 - second recycling channel, 33 - inlet, 34 - outlet, 411 - slide rail, 412 - lifting assembly, 51 - first sand collecting box, 52 - second sand collecting box, 53 - filter screen, 54 - debris box, 55 - cover, 551 - first half cover, 552 - second half cover, 56 - flip cover motor, 61 - driving motor, 611 - first driving motor, 612 - second driving motor, 62 - traction rope, 621 - first traction rope, 622 - second traction rope, 63 - elastic return rope, 631 - first elastic return rope, 632 - second elastic return rope, 64 - driving wheel, 65 - telescopic baffle. Detailed implementation

[0033] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the specification drawings.

[0034] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0035] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0036] Embodiment 1

[0037] As Figures 1 to 5 shown, an aluminum profile sandblasting machine includes a sand storage bin 1, a sandblasting chamber 2, and a recycling bin 3. The sandblasting chamber 2 is provided with a sandblasting assembly 21. The sandblasting assembly 21 is communicated with the sand storage bin 1. There is a recycling bin 3 below the sandblasting chamber 2. A recycling channel 4 is arranged between the sand storage bin 1 and the recycling bin 3. A sand collection box 5 is arranged in the recycling bin 3. The sand collection box 5 is connected with a driving element 6 for driving the sand collection box 5 to move back and forth in the recycling channel 4. A workpiece fixing mechanism 22 is arranged in the sandblasting chamber 2. The workpiece fixing mechanism 22 is connected with a rotating mechanism, and the rotating mechanism can drive the workpiece fixing mechanism 22 to rotate. The sandblasting chamber 2 is connected with a fume collection mechanism 7.

[0038] A first recycling channel 41 and a second recycling channel 42 are respectively arranged between the sand storage bin 1 and the recycling bin 3. The sand collection box 5 includes a first sand collection box 51 and a second sand collection box 52. The driving element 6 includes a first driving motor 611. The first driving motor 611 is fixed to the first recycling channel 41. The first driving motor 611 is connected with a first traction rope 621. The first traction rope 621 is connected to the first sand collection box 51. The first sand collection box 51 is connected with a first elastic rope 631. The first elastic rope 631 and the first traction rope 621 are symmetrical about the central plane of the sand collection box 5 in the vertical direction. The driving element 6 further includes a second driving motor 611. The second driving motor 611 is fixed to the second recycling channel 42. The second driving motor 611 is connected with a second traction rope 622. The second traction rope 622 is connected with the second sand collection box 52. The second sand collection box 52 is connected with a second elastic rope 632. The second elastic rope 632 and the second traction rope 622 are symmetrical about the central plane of the second sand collection box 52 in the vertical direction. The first elastic rope 631 and the second elastic rope 632 are both elastic ropes. Two first traction ropes 621, two second traction ropes 622, two first elastic ropes 631, and two second elastic ropes 632 are arranged.

[0039] A filter screen 53 is arranged at the bottom of the sand collection box 5, and a debris box 54 is arranged below the filter screen 53.

[0040] The recycling channel 4 has an inlet 33 at one end located in the recycling bin 3, and the size of the inlet 33 is adapted to the size of the sand collecting box 5; an outlet 34 is provided at one end of the recycling channel 4 close to the sand storage bin 1, and the outlet 34 communicates with the sand storage bin 1. The sand collecting box 5 pours the abrasive sand in the box into the sand storage bin 1 through the outlet 34.

[0041] The sand collecting box 5 is provided with a cover body 55. The cover body 55 includes a first half cover 551 and a second half cover 552. Both the first half cover 551 and the second half cover 552 are connected with a flip motor 56. Both the first half cover 551 and the second half cover 552 can be independently opened or closed under the control of the flip motor 56. The first half cover 551 and the second half cover 552 are in the form of double doors. When the sand collecting box 5 communicates with the sand storage bin 1 to pour the abrasive sand, the first half cover 551 and the second half cover 552 open and extend into the interior of the sand storage bin 1, serving as a channel to prevent the abrasive sand from spilling to other positions. The inner walls of both the first half cover 551 and the second half cover 552 are set to be concave tile-shaped structures.

[0042] The first half cover 551 or the second half cover 552 is hinged to the sand collecting box 5. A gear tooth is provided at the hinged end of the first half cover 551 or the second half cover 552. The flip motor 56 is connected with a gear that meshes with the first half cover 551 or the second half cover 552. The flip motor 56 rotates to drive the first half cover 551 or the second half cover 552 to open through the gear.

[0043] A lifting component 412 is arranged in the recycling channel 4, and the position of the lifting component 412 is opposite to the outlet 34. The bottom plate of the sand collecting box 5 is hinged to the sand collecting box 5. When the sand collecting box 5 reaches the position of the outlet 34, the lifting component 412 lifts the bottom plate of the sand collecting box 5 by a certain angle; the lifting component 412 is a hydraulic telescopic rod.

[0044] The sandblasting component 21 includes a sandblasting gun 211 and a gas source. The sandblasting gun 211 and the gas source are both connected to a gas compression element 212; the dust collection mechanism 7 includes an air extraction pipe. The air extraction pipe is connected with a fan, and the fan is connected with a sedimentation component, and the sedimentation component is connected to the gas source.

[0045] The workpiece fixing mechanism 22 includes a fixing clamp 221. A clamping motor is arranged on the fixing clamp 221, and the clamping motor drives the fixing clamp 221 to control the clamping and opening of the fixing clamp 221.

[0046] The workpiece fixing mechanism 22 fixes the aluminum workpiece to be processed in place. The sandblasting gun 21 starts to spray abrasive to polish the surface of the aluminum workpiece. The dust collection mechanism 7 starts to operate, and the exhaust pipe extracts the generated dust for unified treatment. The rotating mechanism controls the aluminum workpiece to change its face when the aluminum workpiece needs to be flipped. The fallen abrasive drops into the first sand collection box 51. The debris passes through the filter screen 53 and falls into the debris box 54, while the complete abrasive remains in the first sand collection box 51. When the first sand collection box 51 is full, the first driving motor 611 rotates, and through the first traction rope 621, the first sand collection box 51 is pulled into the first recovery channel 41. At the same time, under the pulling force of the second elastic return rope 632, the second sand collection box 52 quickly moves to the position where the first sand collection box 51 was before it moved. While the first sand collection box 51 is moving, the cover motor 56 closes the cover 55. When the first sand collection box 51 moves to the exit 34, the first half cover 551 and / or the second half cover 552 open and extend from the exit 34 to the sand storage bin 1. The abrasive falls into the sand storage bin 1 along the first half cover 551 or the second half cover 552. The lifting component 412 is slowly pushed in, pushing the lower end of the bottom plate of the sand collection box 5 forward and tilting it, so that all the abrasive falls into the sand storage bin 1. The lifting component 412 contracts, and the bottom plate of the sand collection box 5 returns to the vertical under the action of gravity. The first half cover 551 and / or the second half cover 552 close. The first driving motor 611 rotates in reverse, and the first sand collection box 51 returns to the vicinity of the recovery bin 3 under the action of the first elastic return rope 631. Under the control of the first driving motor 611, it slowly adheres to the second sand collection box 52 and waits for the second sand collection box 52 to be full. After the second sand collection box 52 is full, it moves to the exit 34 from the second recovery channel 42 in the same way. The first sand collection box 51 opens the cover 55 again to recover the abrasive.

[0047] Embodiment 2

[0048] As Figure 6 As shown, an aluminum profile sandblasting machine includes a sand storage bin 1, a sandblasting chamber 2, and a recovery bin 3. The sandblasting chamber 2 is provided with a sandblasting component 21, and the sandblasting component 21 is communicated with the sand storage bin 1. There is a recovery bin 3 below the sandblasting chamber 2. Two recovery channels 4 are provided between the sand storage bin 1 and the recovery bin 3. Two sand collection boxes 5 are provided in the recovery bin 3, and the sand collection boxes 5 are all connected with a driving element 6 for driving the sand collection boxes 5 to move back and forth in the recovery channel 4. A workpiece fixing mechanism 22 is provided in the sandblasting chamber 2, and the workpiece fixing mechanism 22 is connected with a rotating mechanism, and the rotating mechanism can drive the workpiece fixing mechanism 22 to rotate. The sandblasting chamber 2 is connected with a dust collection mechanism 7.

[0049] A slide rail 411 is provided in the recovery channel 4, and the sand collection box 5 moves in the slide rail 411.

[0050] The driving element 6 is a motor installed on the sand collection box 5. A driving wheel 64 is also provided on the sand collection box 5. The motor is connected with the driving wheel 64 through a transmission element. A telescopic baffle 65 is also provided in the recovery channel 4.

[0051] A filter screen 53 is provided at the bottom of the sand collecting box 5, and a debris box 54 is provided below the filter screen 53.

[0052] The recycling channel 4 has an inlet 33 at one end located in the recycling bin 3. The shape of the inlet 33 is the same as that of the side wall of the sand collecting box 5, and the size of the inlet 33 is adapted to the size of the sand collecting box 5. An outlet 34 is provided at one end of the recycling channel 4 close to the sand storage bin 1, and the outlet 34 is communicated with the sand storage bin 1.

[0053] The recycling channel 4 is divided into a first recycling channel 41 and a second recycling channel 42, and the sand collecting box 5 has a first sand collecting box 51 and a second sand collecting box 52 respectively.

[0054] The sand collecting box 5 is provided with a cover body 55. The cover body 55 includes a first half cover 551 and a second half cover 552. Both the first half cover 551 and the second half cover 552 are connected with a flip motor 56. Both the first half cover 551 and the second half cover 552 can be independently opened or closed under the control of the flip motor 56. The first half cover 551 and the second half cover 552 are in the form of double-leaf doors. When the sand collecting box 5 is communicated with the sand storage bin 1 to pour abrasive sand, the first half cover 551 and the second half cover 552 open and extend into the interior of the sand storage bin 1, playing the role of a channel to prevent the abrasive sand from spilling to other positions. The inner walls of both the first half cover 551 and the second half cover 552 are set as concave tile-shaped structures to guide the falling abrasive sand.

[0055] The first half cover 551 or the second half cover 552 is hinged to the sand collecting box 5. A gear tooth is provided at the hinged end of the first half cover 551 or the second half cover 552. The flip motor 56 is connected with a gear that meshes with the first half cover 551 or the second half cover 552. The flip motor 56 rotates to drive the first half cover 551 or the second half cover 552 to open through the gear.

[0056] The sandblasting assembly 21 includes a sandblasting gun 211 and an air source. The sandblasting gun 211 and the air source are both connected to a gas compression element 212. The soot collection mechanism 7 includes an exhaust pipe. The exhaust pipe is connected with a fan. The fan is connected with a sedimentation assembly, and the sedimentation assembly is connected to the air source.

[0057] The workpiece fixing mechanism 22 includes a fixing clamp 221. A clamping motor is provided on the fixing clamp 221, and the clamping motor drives the fixing clamp 221 to control the clamping and opening of the fixing clamp 221.

[0058] The workpiece fixing mechanism 22 fixes the aluminum workpiece to be processed in place. The sandblasting gun 21 starts to spray abrasive to polish the surface of the aluminum workpiece. The dust collection mechanism 7 starts to operate, and the suction pipe extracts the generated dust for unified treatment. The rotating mechanism controls the aluminum workpiece to change its surface when the aluminum workpiece needs to be flipped. The fallen abrasive drops into the first sand collection box 51. After being screened by the filter screen 53, the debris falls into the debris box 54, and the complete abrasive remains in the first sand collection box 51. When the first sand collection box 51 is full, driven by the motor, the driving wheel 64 travels along the slide rail 411 to the outlet 34. At the same time, the second sand collection box 52 travels to the position where the first sand collection box 51 was before it moved. While the first sand collection box 51 is moving, the cover motor 56 closes the cover body 55. When the first sand collection box 51 travels to the outlet 34, the telescopic baffle 65 extends to support the first sand collection box 51. The first half cover 551 and / or the second half cover 552 open and extend from the outlet 34 to the sand storage bin 1. The abrasive falls into the sand storage bin 1 along the first half cover 551 or the second half cover 552. After the abrasive is poured out, the first half cover 551 and / or the second half cover 552 close. The motor drives the driving wheel 64 to reverse, and the first sand collection box 51 travels to the vicinity of the recycling bin 3 and adheres to the second sand collection box 52, waiting for the second sand collection box 52 to be filled. After the second sand collection box 52 is filled, it moves to the outlet 34 from the second recycling channel 42 in the same way. The first sand collection box 51 opens the cover body 55 again to recycle the abrasive.

[0059] In the present utility model, those parts not described can be realized by adopting or referring to the existing technologies.

[0060] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0061] The above description is only for the embodiments of the present utility model and is not intended to limit the present utility model. For those skilled in the art, various modifications and changes can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

[0062] In addition, in the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial direction", "radial direction", "circumferential direction", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0063] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An aluminum profile sandblasting machine, comprising a sand storage bin, a sandblasting chamber and a recovery bin. The sandblasting chamber is provided with a sandblasting assembly, the sandblasting assembly is communicated with the sand storage bin, and the sandblasting chamber is connected with the recovery bin, characterized in that, A recovery channel is provided between the sand storage bin and the recovery bin. A sand collection box is arranged in the recovery bin, and the sand collection boxes are all connected with driving elements; the sand collection boxes transport the abrasive sand back to the sand storage bin through the recovery channel under the drive of the driving elements; a workpiece fixing mechanism is arranged in the sandblasting chamber, the workpiece fixing mechanism is connected with a rotating mechanism, and the rotating mechanism can drive the workpiece fixing mechanism to rotate. The sandblasting chamber is connected with a dust collection mechanism.

2. The aluminum profile sandblasting machine according to claim 1, characterized in that, A slide rail is arranged in the recovery channel, and the sand collection box moves on the slide rail.

3. The sandblasting machine for aluminum profiles according to claim 2, characterized in that, The driving element includes a driving motor. A driving wheel is arranged on the sand collection box, and the driving motor is connected with the driving wheel; a telescopic baffle is arranged in the slide rail.

4. The sandblasting machine for aluminum profiles according to claim 1, characterized in that, The driving element includes a driving motor. The driving motor is fixed in the recovery channel, the driving motor is connected with a traction rope, and the traction rope is connected to the sand collection box.

5. The sandblasting machine for aluminum profiles according to claim 1, characterized in that, A first recovery channel and a second recovery channel are respectively arranged between the sand storage bin and the recovery bin; the sand collection boxes include a first sand collection box and a second sand collection box. The driving element includes a first driving motor. The first driving motor is fixed in the first recovery channel, the first driving motor is connected with a first traction rope, the first traction rope is connected to the first sand collection box, the first sand collection box is connected with a first return rope, and the first return rope and the first traction rope are symmetrical about the central plane in the vertical direction of the sand collection box; the driving element further includes a second driving motor. The second driving motor is fixed in the second recovery channel, the second driving motor is connected with a second traction rope, the second traction rope is connected to the second sand collection box, the second sand collection box is connected with a second return rope, and the second return rope and the second traction rope are symmetrical about the central plane in the vertical direction of the second sand collection box.

6. The sandblasting machine for aluminum profiles according to claim 1, characterized in that, A filter screen is arranged at the bottom of the sand collection box, and a debris box is arranged below the filter screen.

7. The sandblasting machine for aluminum profiles according to claim 1, characterized in that, The sand collection box is provided with a cover body. The cover body includes a first half cover and a second half cover, and the first half cover and the second half cover are both connected with a flip motor.

8. The sandblasting machine for aluminum profiles according to claim 1, characterized in that, A lifting assembly is arranged in the recovery channel. The bottom plate of the sand collection box is hinged to the sand collection box, and the lifting assembly lifts one end of the bottom plate of the sand collection box.

9. The sandblasting machine for aluminum profiles according to claim 1, wherein The sandblasting assembly includes a sandblasting gun and an air source. The sandblasting gun and the air source are both connected with a gas compression element; the dust collection mechanism includes an exhaust pipe, the exhaust pipe is connected with a fan, the fan is connected with a sedimentation assembly, and the sedimentation assembly is connected with the air source.

10. The sandblasting machine for aluminum profiles according to claim 1, wherein The workpiece fixing mechanism includes a fixing clamp. A clamping motor is arranged on the fixing clamp, and the clamping motor controls the clamping and opening of the fixing clamp.

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