CN214213452U - Sand blasting system - Google Patents

Abstract

A sand blasting system comprises a sand blasting machine, a sand blasting chamber and a sand particle recovery device, wherein a sand blasting gun is arranged at the tail end of a sand conveying pipeline of the sand blasting machine, the sand blasting chamber comprises a closed box body, a workbench arranged in the closed box body and used for bearing a workpiece, and support legs positioned below the closed box body, the closed box body consists of four side plates, a top plate above and a bottom plate below, the side plates are provided with sand inlets, observation windows and openable door plates for the workpieces to enter and exit, the bottom plate is provided with a sand outlet connected with the sand recovery device, the workbench is provided with a rotating seat which can drive a workpiece to rotate under the drive of a motor, the front part of the barrel of the sand blasting gun extends into the closed box body from the sand inlet, the rear part of the barrel and the gun handle extend out of the closed box body, and a direction changing structure for supporting the sand blasting gun to swing is arranged in the sand inlet. The utility model discloses both realize the comprehensive processing to workpiece surface, protected operating personnel again.

Description

Sand blasting system

Technical Field

The utility model relates to a sandblast technical field, concretely relates to sandblast system.

Background

As is well known, the principle of sand blasting is to utilize accelerated abrasive particles (such as emery, glass sand, resin sand, etc.) to impact the surface of a workpiece to be processed, so that the workpiece to be processed can achieve the purposes of removing rust, burrs, oxide layers, carbon layers, etc., and even achieve the surface treatment operation of glass atomization. At present, as the appearance requirement of a product by a user is higher and higher, and meanwhile, the process requirement of a part and the requirement of coating operation on the surface roughness of the part are higher, sand blasting processing is widely applied to the fields of mechanical manufacturing, artware processing and manufacturing and the like which have requirements on the surface. Accordingly, various blasting apparatuses are available on the market which can provide different blasting operations. However, the existing sand blasting equipment is generally semi-automatic production, and an operator is required to stand in a sand blasting chamber to hold a spray gun to perform surface treatment operation on a workpiece in the production process. This kind of mode makes machining efficiency low, and the treatment effect becomes inhomogeneous according to the change of the angle, the distance and the translation rate that operating personnel held the spray gun moreover, and the effect of surface treatment greatly reduced to dust and the poisonous and harmful gas who flies upward in the sandblast room can cause the injury to operating personnel's health. Consequently, many automatic sand blasting systems have appeared on the market, including sandblast room, frame and sand blasting machine as the sand blasting system of a large-scale work piece that chinese patent application No. 201822252989.1 discloses, there is the sandblast rifle head sand blasting machine through the pipe connection, the sandblast rifle head is installed on the four-axis arm, the four-axis arm is installed on the guide rail, the guide rail is installed in the frame, treats that the work piece is carried the sandblast indoor by conveyor, the four-axis arm is along Y axle side-to-side motion and swing, along Z axle up-and-down motion and rotation to the even sandblast of processing large-scale work piece is treated in the realization, guarantees product surface quality's uniformity. Although this patent achieves a high degree of automation, it still requires the presence of an operator for control and the sandblasting booth is not completely closed, relying only on the dust removal fan mounted above it to ensure the physical health of the workers, which is clearly far less effective than a closed sandblasting booth. In addition, the four-axis mechanical arm structure designed for realizing uniform sand blasting treatment on the surface of a large workpiece is too complex, comprises complex structures such as a planetary gear retrieval motor needle roller screw and a precise steering gear, is very easy to damage in a sand blasting working environment, and has extremely high maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model is to improve the problems of the prior art, namely, the utility model aims to solve the technical problem of providing a sand blasting system, which comprises a sand blasting machine, a sand blasting chamber and a sand grain recovery device which are connected into a loop for circulating sand grains through a pipeline, wherein the end of a sand conveying pipeline of the sand blasting machine is provided with a sand blasting gun, the sand blasting chamber comprises a closed box body, a workbench which is arranged in the closed box body and used for bearing a workpiece and a support leg which is positioned below the closed box body, the closed box body consists of four side plates which are surrounded into a circle, a top plate and a bottom plate which is arranged below the closed box body, the side plates are provided with a sand inlet, an observation window which is arranged beside the sand inlet and an openable door plate for the workpiece to enter and exit, the bottom plate is provided with a sand outlet which is connected with the sand grain recovery device, the workbench is provided with a rotary seat which can drive the workpiece to rotate under the drive of a motor, the front part of the gun barrel of the sand blasting gun extends into the closed box body from the sand inlet, the rear part of the gun barrel and the gun handle extend out of the closed box body, and a direction changing structure for supporting the sand blasting gun to swing is arranged in the sand inlet.

As the utility model discloses a preferred, the outside of curb plate is located the position of sand inlet is provided with the surrounding part the rubber dirt proof boot of barrel.

As the utility model discloses a preferred, the bottom plate comprises at least three collecting plates of downdip, is and leaks hopper-shaped, just the sand outlet is located the most below position of bottom plate.

As the utility model discloses a preferred, still be provided with in the enclosure box and erect the bottom plate top is used for supporting the support of workstation, the support comprises a plurality of staggered arrangement's bracing piece.

As the utility model discloses a preferred, directly support in the support two spinal branch vaulting poles of workstation are parallel to each other, and have the confession on it the slide rail that the workstation removed, be provided with on the lower bottom surface of workstation with the sliding connection portion that the slide rail corresponds.

As the utility model discloses a preferred, do the roating seat provides power the motor sets up inside the cavity of workstation, the confession has been seted up on the lower bottom surface of workstation the first through-hole that the motor circuit stretches out.

As the utility model discloses a preferred, the workstation below is provided with a hollow guide rod in inside, the hollow inside of guide rod extends to outside the sandblast room, and seted up the second through-hole on it, the circuit of motor can be followed the hollow inside of guide rod extends to outside the sandblast room.

Preferably, the inner wall of the side plate is uneven.

As the utility model discloses a preferred, the one deck sound insulation material has been laid to the inner wall of curb plate.

As the utility model discloses a preferred, still be provided with in the sand grain recovery unit and be used for right the sand grain carries out the dust removal mechanism that removes dust.

Has the advantages that:

1) swinging the sand blasting gun can change the direction of sand blasting, thereby increasing the coverage area, avoiding the occurrence of processing dead angles, leading the workpiece to be subjected to full sand blasting treatment, and simultaneously improving the compatibility of the sand blasting system to large-sized workpieces;

2) the direction-changing structure limits the freedom degrees of the sand-blasting gun except for swinging, an operator only needs to hold the gun handle to swing in the sand-blasting process, the sand-blasting gun does not need to be held by the hand to ensure that the sand-blasting gun is balanced at a certain position, the operation is labor-saving, and the energy consumption is reduced;

3) an operator can check the sand blasting condition in the closed box body through the observation window;

4) in a normal placing state, the rubber dustproof sleeve can support the sand blasting gun to be maintained in a horizontal state, the sand blasting gun is in the most common state for sand blasting treatment of most small workpieces, and an operator does not need to exert excessive force to support the sand blasting gun during sand blasting, so that the energy consumption of the operator is reduced;

5) when an operator swings the sand-blasting gun in a certain direction, the pressed rubber dustproof sleeve can generate an acting force opposite to the swinging direction of the sand-blasting gun, the acting force and the force applied to the sand-blasting gun by the operator act simultaneously to generate a clamping force on the sand-blasting gun, the sand-blasting gun is maintained at the position to continuously process a certain position of a workpiece for a short time, the burden of the operator for lifting the sand-blasting gun is reduced, and the energy consumption of the operator is reduced;

6) when the sand blasting gun needs to be swung to other positions, the reset trend of the pressed rubber dustproof sleeve can push the sand blasting gun to return to the initial position of the gun barrel in the horizontal state, and the energy consumption of an operator can be reduced;

7) the rubber dustproof sleeve can block dust escaping from the sand blasting opening to the external space, and further ensures that the body of an operator is not damaged;

8) the rotary seat can drive the workpiece to rotate, and the side faces of the workpiece facing to any direction are all exposed under the ejected sand grains in sequence, so that the full and complete sand blasting treatment on the surface of the workpiece can be still finished on the premise of only depending on one sand blasting gun;

9) the whole bottom plate is funnel-shaped, the sand outlet is positioned at the lowest position of the bottom plate, and sand falling on the collecting plate directly slides downwards to the sand outlet, so that the sand can be conveniently recovered by the sand recovery device;

10) the workbench can adjust the position of the workbench on the bracket according to workpieces with different sizes by moving on the slide rail, so that the compatibility of the sand blasting system to the workpieces is improved;

11) the workbench and the guide rod respectively effectively protect the motor and the motor circuit;

12) the inner wall of the side plate can be designed to be uneven, so that the reflection times of sand blasting noise in the closed box body are increased, and a good noise reduction effect is achieved;

13) a layer of sound insulation material is laid on the inner wall of the side plate, so that the noise reduction effect of the side plate is further improved;

drawings

Fig. 1 is a schematic view of the general structure of a sand blasting system of the present invention;

FIG. 2 is a schematic structural view of the sand blasting chamber without the openable door panel;

FIG. 3 is a schematic structural view of the middle support, the workbench and the bottom plate of the present invention;

FIG. 4 is a bottom view of the bracket and table;

in the figure: 1. the sand blasting machine comprises a sand blasting machine, 2, a sand blasting chamber, 3, a sand recovery device, 11, a sand blasting gun, 111, a gun barrel, 112, a gun handle, 12, a sand conveying pipeline, 13, a rubber dustproof sleeve, 21, a closed box body, 22, a workbench, 23, support legs, 24, side plates, 25, a top plate, 26, a bottom plate, 27, a support, 28, a guide rod, 221, a rotating seat, 223, a sliding connection part, 224, a first through hole, 241, a sand inlet, 242, a direction changing device, 243, an observation window, 244, an openable door plate, 261, a sand outlet, 262, a collecting plate, 271, a support rod, 272, a sliding rail, 281 and a second through hole.

Detailed Description

The following specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

The sand blasting system in fig. 1 comprises a sand blasting machine 1, a sand blasting chamber 2 and a sand recycling device 3 which are connected into a loop for sand circulation through pipelines, wherein the sand blasting machine 1 carries out surface sand blasting operation on a workpiece in the sand blasting chamber 2 through a sand blasting gun 11 on the sand blasting machine. In the embodiment, in order to ensure that the body of an operator is not damaged by the complicated and harsh processing environment in the sandblasting room, the processing environment of the sandblasting room 2 is separated from the operator, so that a closed box body 21 consisting of four side plates 24, a top plate 25 and a bottom plate 26 is designed on the periphery of the sandblasting room 2, the four side plates 24, the top plate 25 and the bottom plate 26 are enclosed into a circle, no obvious gap exists in the joint among the side plates 24, the top plate 25 and the bottom plate 26 in the closed box body 21, and the sandblasting on the workpiece is carried out in the closed box body 21, so that the sandblasting environment is separated from the external space. However, the work piece is still needed to be sandblasted by a worker, so that the closed box 21 needs to be provided with a structure for the worker to operate. As shown in fig. 2, in this embodiment, a sand inlet 241 is formed in any one of the four side plates 24, and an operator can hold the handle 112 of the sand blasting gun 11 by hand to extend the front portion of the barrel 111 into the closed box 21 through the sand inlet 241, and the sand blasting machine 1 after being started can convey sand particles into the sand blasting gun 11 through the sand conveying pipe 12 communicated with the sand blasting gun 11 and eject the sand particles through the barrel 111 of the sand blasting gun 11, during which process, the operator only needs to align the outlet of the barrel 111 with a workpiece to perform sand blasting operation. In actual processing, a workpiece to be processed is often a component with a large size and a complex structure, and the area covered by sand ejected from the sand-blasting gun 11 is very limited, so that an operator needs to repeatedly swing the barrel 111 of the sand-blasting gun 11 to change the direction of sand ejection, thereby increasing the covered area, avoiding the occurrence of processing dead angles, enabling the workpiece to be subjected to sufficient sand blasting, and improving the compatibility of the sand blasting system to large-sized workpieces. The swing of the barrel 111 uses the sand inlet 241 as a supporting point, so a turning structure 242 capable of supporting both the barrel 111 of the sand blasting gun 11 and the swing of the barrel is required to be arranged in the sand inlet 241, the turning structure 242 is preferably a self-aligning bearing in this embodiment, and if the self-aligning bearing is selected, a certain part on the barrel 111 of the sand blasting gun 11 needs to be designed into a shape capable of being matched with the self-aligning bearing. In this embodiment, the sand blasting gun 11 is installed on the self-aligning bearing and then erected in the position all the time, the degree of freedom except for swinging is fully limited, an operator only needs to hold the gun handle 112 to swing in the sand blasting process, the sand blasting gun 11 does not need to be held by hands to ensure that the sand blasting gun 11 is balanced in a certain position, operation is labor-saving, and energy consumption is reduced. In a further improvement, since the side plate 24 isolates the operator from the sandblasting environment, and the side plate 24 is made of a material suitable for the machining field, such as a steel plate, and generally has no perspective function, so that the operator cannot observe the machining condition of the workpiece, in this embodiment, it is preferable to provide an observation window 243 on the side plate 24 beside the sand inlet 241, so that the operator can view the sandblasting condition inside the closed box 21 through the observation window 243. When the observation window 243 is actually opened, the observation window 243 to be observed with eyes should be disposed above the blasting port 241 to be controlled by hand according to the human body structure.

In a further improvement, a rubber dustproof sleeve 13 is arranged outside the side plate 24 at the position of the sand inlet 241, and the rubber dustproof sleeve 13 is hollow and can surround the part of the gun barrel 111, which extends out of the closed box 21, of the sand blasting gun 11. In a normal placing state, the sand-blasting gun 11 may have a larger-mass side drooping due to the difference in mass of the parts separated on the two sides of the sand inlet 241, and the rubber dust-proof cover 13 can support the sand-blasting gun 11 to maintain a horizontal state, which is the most common case for sand-blasting treatment of most small workpieces, and an operator does not need to exert excessive force to support the sand-blasting gun 11 during sand blasting, thereby reducing energy consumption of the operator; when an operator swings the sand-blasting gun 11 in a certain direction, the part of the barrel 111 extending out of the closed box 21 presses the rubber dust-proof sleeve 13 in the certain direction, and the pressed rubber dust-proof sleeve 13 generates a force opposite to the swinging direction of the sand-blasting gun 11, and the force applied to the sand-blasting gun 11 by the operator simultaneously generate a clamping force to the sand-blasting gun 11, so that the sand-blasting gun 11 is maintained in the position to perform temporary continuous processing on a certain position of a workpiece, the burden of the operator for supporting the sand-blasting gun 11 is reduced, and the energy consumption of the operator is reduced; meanwhile, when the sand blasting gun needs to be swung to other positions, the reset trend of the pressed rubber dustproof sleeve 13 can push the sand blasting gun to return to the initial position of the gun barrel in the horizontal state, and the energy consumption of an operator can be reduced; in addition, because the operator stands beside the sand blasting opening, if dust escapes to the external space from the sand blasting opening, the operator is directly injured, and the rubber dustproof sleeve 13 can block the dust, so that the body of the operator is further prevented from being injured.

In actual processing, a workpiece to be processed needs to be placed in the closed box 21, and therefore, an openable and closable door plate 244 is provided on one of the four side plates 24, and is opened when the workpiece is taken and placed, and is closed during processing. In addition, a working table 22 for supporting the workpiece is arranged in the closed box 21, the workpiece is placed on the working table 22 before sand blasting, the whole workpiece is lifted in a semi-empty state and is better exposed to the sprayed sand grains, and the processing effect is improved. If the sand blasting gun 11 is provided on only one of the side plates 24, only the surface of the workpiece facing the side can be subjected to sand blasting, and the absence of sand blasting on the other side surfaces of the workpiece obviously does not allow the treatment effect to be satisfactory. Therefore, in the embodiment, the sand blasting guns 11 as described above can be disposed on each side plate 24 to achieve the overall treatment of the workpiece surface, but a plurality of operators are correspondingly required to be disposed in one sand blasting chamber 2, so that not only the equipment cost for disposing a plurality of sand blasting guns 11 is increased, but also the labor cost is greatly increased. In the present embodiment, as mentioned above, the sand blasting gun is preferably disposed on only one side, and in order to achieve overall treatment of the surface of the workpiece, the rotary base 221 for supporting the workpiece is disposed on the worktable 22, the rotary base 221 is connected to a motor, and is driven by the motor to rotate, so as to drive the workpiece to rotate, and all sides of the workpiece facing to any direction are sequentially exposed to the ejected sand grains, so that complete and sufficient sand blasting of the surface of the workpiece can be achieved by only one sand blasting gun 11.

Fig. 2 shows that the base plate 26 has a sand outlet 261 connected to the sand recovery device, and the ejected sand falls onto the base plate and is collected at the sand outlet 261 and sucked out of the blasting chamber 2 by the sand recovery device. In the sand blasting system, sand is circulated repeatedly and practically, so that the circulation is accelerated as much as possible to ensure the continuity of the sand blasting. In order to facilitate the collection of sand particles at the sand outlet to accelerate the recovery of the sand particles, the bottom plate 26 is designed to be a special structure, and comprises at least three collecting plates 262 inclined downwards, so that the bottom plate 26 is integrally funnel-shaped, the sand outlet 261 is located at the lowest position of the bottom plate 26, and the sand particles falling on the collecting plates 262 directly slide downwards to the sand outlet 261, so as to be conveniently recovered by the sand recovery device 3. Since the bottom plate 26 is funnel-shaped as a whole in this embodiment, a supporting structure is required above the bottom plate to support the working table 22, in this embodiment, a support 27 is preferably provided, the support 27 is composed of a plurality of support rods 271 arranged in a staggered manner, and a gap is formed between the support rods 271 arranged in a staggered manner, so that the support 27 is prevented from hindering the falling of sand grains. In a further improvement, two support rods 271 of the bracket 27, which directly contact the worktable 22, are parallel to each other, and have a slide rail 272 on which the worktable 22 moves, a slide connection portion 223 corresponding to the slide rail 272 is disposed on a lower bottom surface of the worktable 22, the slide connection portion 223 is connected with the slide rail 272 through a bolt, the nut moves when loosened, and the nut is fastened when tightened. The workbench 22 can adjust the position of the workbench 22 on the bracket 27 according to workpieces with different sizes, so that the compatibility of the sand blasting system to the workpieces is improved.

In addition, since the motor for driving the rotary base 221 is easily damaged when exposed to a severe processing environment of the blasting chamber, it is preferable that the motor is installed in the hollow interior of the work table 22 to protect the motor to the maximum. In order to safely draw the motor circuit out of the blasting chamber and connect the motor circuit with a power supply, in this embodiment, a hollow guide rod 28 is preferably disposed below the worktable 22, the guide rod 28 extends out of the blasting chamber 2, the hollow portion extends out of the blasting chamber 2, and a second through hole 281 is further disposed thereon, and the motor circuit extending out of the worktable 22 can enter the hollow portion of the guide rod 28 from the second through hole 281, and then reaches an external space along the hollow portion of the guide rod 28.

Further, in this embodiment, the inner wall of the side plate 24 may be designed to be uneven, so as to increase the number of times of reflection of the sandblasting noise in the closed box 21, thereby achieving a good noise reduction effect. In a further improvement, a layer of sound insulation material, such as wave cotton, may be laid on the inner wall of the side plate 24, so as to further improve the noise reduction effect of the side plate 24. In addition, in the present embodiment, it is preferable that a dust removing device for removing dust from the sand is provided in the sand recovery device 3.

Claims (10)

1. A sand blasting system comprises a sand blasting machine (1), a sand blasting chamber (2) and a sand recycling device (3), wherein the sand blasting machine (1), the sand blasting chamber (2) and the sand recycling device are connected into a loop for sand circulation through pipelines, a sand blasting gun (11) is installed at the tail end of a sand conveying pipeline (12) of the sand blasting machine (1), the sand blasting system is characterized in that the sand blasting chamber (2) comprises a closed box body (21), a workbench (22) arranged in the closed box body (21) and used for bearing a workpiece, and support legs (23) positioned below the closed box body (21), the closed box body (21) comprises four side plates (24) which are surrounded into a circle, a top plate (25) above and a bottom plate (26) below, a sand inlet (241), an observation window (243) arranged beside the sand inlet (241) and an openable door plate (244) for the workpiece to enter and exit, a sand outlet (261) connected with the sand recycling device (3) is arranged on the bottom plate (26), the rotary base (221) capable of driving a workpiece to rotate under the driving of a motor is arranged on the workbench (22), the front portion of a barrel (111) of the sand blasting gun (11) extends into the closed box body (21) from the sand inlet (241), the rear portion of the barrel (111) and a gun handle (112) extend out of the closed box body (21), and a direction changing structure (242) supporting the sand blasting gun (11) to swing is arranged in the sand inlet (241).

2. A blasting system according to claim 1, characterised in that the outside of the skirt (24) at the location of the sand inlet (241) is provided with a rubber dust boot (13) surrounding part of the barrel (111).

3. A blasting system according to claim 1, characterised in that the base plate (26) consists of at least three downwardly inclined collecting plates (262) in the form of a funnel, and in that the outlet (261) is located at the lowermost position of the base plate (26).

4. A blasting system according to claim 1, wherein a stand (27) is provided inside the closed box (21) and arranged above the base plate (26) for supporting the worktable, the stand (27) being composed of a plurality of staggered supporting rods (271).

5. A blasting system according to claim 4, wherein the two support rods (271) of the stand (27) directly supporting the worktable (22) are parallel to each other and have thereon a slide rail (272) for moving the worktable (22), and the lower bottom surface of the worktable (22) is provided with a sliding connection portion (223) corresponding to the slide rail (272).

6. The sandblasting system as claimed in claim 1, wherein said motor for powering said rotary base (221) is arranged inside the hollow of said worktable (22), and a first through hole (224) for said motor circuit to protrude is provided on the lower bottom surface of said worktable (22).

7. A blasting system according to claim 1, characterised in that a hollow guide rod (28) is arranged below the table (22), the hollow interior of the guide rod (28) extending outside the blasting chamber (2) and being provided with a second through hole (281) through which the electric motor can be routed to extend from the hollow interior of the guide rod (28) outside the blasting chamber (2).

8. A blasting system according to claim 1, characterised in that the internal walls of the side plates (24) are uneven.

9. A blasting system according to claim 1, characterised in that the inner walls of the side plates (24) are provided with a layer of acoustic insulation.

10. A blasting system according to claim 1, characterised in that a dust removal mechanism is also provided in the grit recovery device (3) for removing dust from the grit.

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