KR102514573B1 - Shot blasting system for surface treatment that improves paint quality - Google Patents

Abstract

The present invention is a shot blasting system for processing the surface of a workpiece by jetting shot balls at a high speed to the workpiece, the system comprising a transfer unit including a moving belt formed in a mesh type so that the shot balls can be discharged well after processing. According to the shot blasting system of the present invention, it is possible to check whether a poorly processed portion exists on the processed workpiece in real time by a camera, and to increase work efficiency by automatically collecting and resupplying the shot balls.

Description

Shot blasting system for surface treatment that improves paint quality}

The present invention relates to a shot blasting system for surface treatment that improves painting quality.

Shot blasting machinery is a device that processes the surface of a workpiece by blasting a shot such as a steel ball at a high speed at a workpiece.

This shot blasting machine is provided with a processing chamber forming a closed shot working space in order to prevent the shot ejected using compressed air or an impeller from leaking out and being lost or an accident caused by the lost shot. It includes a conveyor for transporting workpieces to the processing chamber, a dust collector for collecting dust generated during the shot operation, a collection unit for collecting the sprayed shot, and a control unit for controlling it.

At this time, the foreign matter separated from the outer surface of the workpiece is sent to the collection unit along with the shot, and the foreign matter is filtered through a screen in the collection unit and then removed, and the shot is collected through the screw conveyor for reuse and then the shot storage tank are transferred to

However, in the prior art, there was a problem in that the work efficiency was very low because the workpiece after being processed by the short ball could not be checked in real time.

The present invention has been made to solve the above problems, and it is possible to check in real time through a camera whether or not there is an insufficiently processed part in the processed workpiece, and the work efficiency is increased by automatically collecting and resupplying the short ball. It provides a shot blasting system for surface treatment that improves the quality of painting.

The technical problem of the present invention is not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

A shot blasting system for surface treatment for improving painting quality according to an embodiment of the present invention is a shot blasting device for processing the surface of a workpiece by spraying a shot at a high speed on a workpiece, the sprayed shot ball It may include; a transfer unit including a moving belt formed in a mesh shape so that it can be well discharged after the processing.

In one embodiment, a short ball spraying unit installed on the upper and lower portions of the shot blasting device and including an impeller for applying centrifugal force to the shot ball to spray a short ball to a workpiece being transported to process the surface of the workpiece; and a shortball collecting unit for collecting the shortballs used in the processing process.

In one embodiment, the short ball collection unit, a blower for pushing the short ball toward the center of the transfer unit; a collection cone formed in the shape of a cone with both sides inclined and installed under the transfer part; and a shortball transfer pipe formed at the lower spigot of the collecting cone and transporting the collected shortballs to the impellers installed at the upper and lower parts.

In one embodiment, the present invention may further include an insufficient part determination unit installed at one side of the exit of the shot blasting machine for checking and determining whether or not there is an insufficiently processed part in the processed workpiece.

In one embodiment, the insufficient portion determination unit, a support column for supporting the camera; a floor support body fitted with the base column to support the floor and the support column at the same time; a camera coupled to an upper portion of the support pillar and photographing the processed workpiece; and a judgment module for determining whether or not the processing has been insufficient.

In one embodiment, the support column, the camera is installed on the top, it is formed in the shape of a cylinder, but made of a hollow shape and may have a coupling groove formed on one side.

In one embodiment, the floor support body, the bottom pillar of the square pillar shape for supporting the floor; and a coupling pillar installed on top of the floor pillar and coupled to the support pillar.

In one embodiment, the coupling column is made of a hollow shape, and the cross section in contact with the sidewall of the lower end of the support column is a coupling protrusion fitted into the coupling groove to prevent relative rotation of the support column with respect to the floor support. It can be characterized in that is formed.

The above-described problem solving means are merely exemplary and should not be construed as intended to limit the present disclosure. In addition to the exemplary embodiments described above, additional embodiments may exist in the drawings and detailed description of the invention.

According to one aspect of the present invention described above, it is possible to check the presence or absence of insufficiently processed parts of the processed workpiece in real time through a camera, and the shortball is automatically collected and resupplied, so the work efficiency is improved and the painting quality is improved. It can provide a shot blasting system for surface treatment.

Effects of the present invention are not limited to the effects mentioned above, and various effects may be included within a range apparent to those skilled in the art from the contents to be described below.

1 and 2 are views showing a shot blasting system for surface treatment to improve painting quality according to an embodiment of the present invention.
3 is a view showing a transfer unit and a short ball collection unit according to an embodiment of the present invention.
4 and 5 are views showing an auxiliary roller according to an embodiment of the present invention.
6 to 8 are views showing a buffer support according to an embodiment of the present invention.
9 to 12 are views showing a support column and a floor support of an insufficient portion determination unit according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description of the present invention which follows refers to the accompanying drawings which illustrate, by way of illustration, specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable one skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other but are not necessarily mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in another embodiment without departing from the spirit and scope of the invention in connection with one embodiment.

Additionally, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the detailed description set forth below is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all equivalents as claimed by those claims. Like reference numbers in the drawings indicate the same or similar function throughout the various aspects.

On the other hand, throughout this specification, when a certain component is said to "include", it means that it may further include other components, not excluding other components as long as the contrary description is A. do. In addition, a “unit” for a component used in this specification performs at least one function or operation. And "unit" may perform a function or operation by hardware, software, or a combination of hardware and software.

Terms including ordinal numbers, such as first and second, may be used to describe various components, but these components are not limited by the above terms. The terminology described above is only used for the purpose of distinguishing one component from another.

In this specification, the term "comprising" is intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features, numbers, or steps However, it should be understood that it does not preclude the possibility of existence or addition of operations, components, parts, or combinations thereof. It should be understood that when an element is referred to as being “connected” to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle.

In addition, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be abbreviated or omitted.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 and 2 are views showing a shot blasting system for surface treatment to improve painting quality according to an embodiment of the present invention.

3 is a view showing a transfer unit and a short ball collection unit according to an embodiment of the present invention.

4 and 5 are views showing an auxiliary roller according to an embodiment of the present invention.

6 to 8 are views showing a buffer support according to an embodiment of the present invention.

9 to 12 are views showing a support column and a floor support of an insufficient portion determination unit according to an embodiment of the present invention.

The shot blasting system 10 for surface treatment to improve painting quality may include a transfer unit 100, a shotball jetting unit 200, and a shortball collection unit 300.

In one embodiment, the transfer unit 100 may include a moving belt 110 formed in a mesh form so that the ejected shortball can be discharged well after processing. The through hole in the mesh form may be large enough for a short ball to pass through, and there is no other limitation.

In addition, the transfer unit 100 may include a plurality of auxiliary rollers 300 installed to be rotatably provided with a plurality of spaced apart from each other on both sides so that the lower part of the moving belt can be seated and moved.

In one embodiment, the shot ball ejection unit 200 is installed on the top and bottom of the shot blasting device and includes an impeller 210 for applying centrifugal force to the shot ball to spray the short ball to the workpiece being transported to surface can be machined.

In one embodiment, the shortball collecting unit 300 may collect the shortball used in the processing process.

The shortball collecting unit 500 may include a blower 510, a collecting cone 520, and a shortball transfer pipe 530.

The blower 510 pushes the short ball toward the center of the transfer unit. That is, the short balls installed on both upper parts of the moving belt 110 and remaining after processing are pushed toward the center by spraying high-pressure air so that they can fall to the collection cone 520.

The collection cone 520 may be formed in a cone shape with both sides inclined and installed below the transfer unit 100 . It is formed in an inclined shape so that short balls can easily gather toward the center.

The shortball transfer pipe 530 is formed at the lower tip of the collection cone 520 and transfers the collected shortballs to the impeller 210 installed at the upper and lower parts to recycle the shortballs.

Meanwhile, the auxiliary roller 300 according to an embodiment may further include a roller 305, a support plate 306, a first roller support 307, and a second roller support 308.

The support plate 306 may be formed in a square flat plate shape and coupled to an upper portion of the transfer unit 100 .

The first roller support 307 is installed upright on one side of the upper portion of the support plate 306, and one side of the roller 121 is installed connected thereto.

The second roller support 308 is installed upright on the other upper side of the support plate 306 while facing the first roller support 307, and the other side of the roller 121 is installed connected thereto.

The first roller support 307 according to an embodiment may further include a support body 310, a flyer surface 320, a rear end support surface 330, a tripod support 340, and a buffer support 400. .

Here, the second roller support 308 has a symmetrical structure with the first roller support 307 described later, and includes a support body 310, a leaf surface 320, a rear end support surface 330, and a tripod support 340 described later. ) And configurations such as the buffer support 400 can be equally applied, and the description thereof will be omitted to avoid duplication of description.

The support body 310 has a lower portion connected to one side of the upper portion of the supporting plate 306 so as to be rotatable, and a leaflet surface 320 protrudes downward on the lower side of the front end, and the rear end support surface 330 formed at the rear end ) is supported by the buffer support 400.

The leaflet surface 320 is protruded from the lower front end of the support body 310 and is seated on the supporting plate 306 .

The rear end support surface 330 is formed at the lower rear end of the support body 310 and is supported by the buffer support 400 .

The tripod support 340 is installed on the upper side of the support plate 306 while facing the rear end support surface 330, and the buffer support 400 is seated on the upper side.

The buffer support 400 is installed between the rear support surface 330 and the tripod support 340 and supports the space between the rear support surface 330 and the tripod support 340 using elastic force.

Referring to FIG. 7 , the buffer support 400 according to an embodiment may include a buffer tube 410, a hole 420, an absorption bar 430, a buffer tube groove 440, and a buffer 450. can

The buffer tube 410 may be formed of a material having elasticity and spirally wound to form a plurality of layers. The buffer tube 410 may be a material having elasticity, but is not limited thereto, and any material capable of relieving or absorbing shock or vibration elastically is possible.

In addition, it is preferable that adjacent layers among a plurality of layers formed by winding the buffer tube 410 in a spiral form come into contact with each other. Through this, the pressure applied to the upper layer is directly transferred to the lower layer and absorbed. However, as long as the material has sufficient rigidity according to the material of the buffer tube 410, it is also possible to form the upper layer and the lower layer so that they do not come into contact with each other.

The hole portion 420 according to an embodiment may be drilled on the outer surface of the buffer tube to form a set of holes, and at least one layer may be alternately formed in layers formed by spirally winding the buffer tube 410 .

This is in consideration of the degree of impact to be absorbed, and when two layers are formed alternately, the portion where the hole portion 420 is formed ('b' portion in FIG. 8) compared to the case where the hole portion 420 is formed alternately one layer at a time. First, the shock is absorbed while contracting, and then the portion where the hole portion 420 is not formed ('a' portion in FIG. 8) contracts and absorbs the impact. augmentation effect can be obtained.

The absorbent rod 430 according to an embodiment may have a hollow rod shape, and a buffer tube groove 440 may be formed along the outer circumference.

In more detail, the buffer tube groove 440 is spirally formed along the direction in which the buffer tube 410 is wound, and the buffer tube 410 is accommodated in the buffer tube groove 440 and wound at the same time to stably maintain its shape In addition, it is possible to strengthen the coupling state of the spirally wound buffer tube 410 and the absorption rod 430. On the other hand, the absorbent rod 430 may also form a corrugated tube, and in this case, when an external shock is applied, smooth contraction can be expected.

The buffer 450 may be filled inside the absorbent bar 430 and made of an elastic material such as rubber to buffer and absorb shock or vibration, and preferably has a spherical shape, but is not limited thereto. A plurality of bars may be provided and may be configured to be accommodated inside the absorbent bar 430 in a stacked manner, and an appropriate number may be selected and filled according to the length of the absorber bar 430.

More specifically, the shock absorbing material 450 may be formed with a hole penetrating the body if necessary. Therefore, when an impact is applied, it can be contracted more smoothly and performance of absorbing shock or vibration can be improved.

When a plurality of cushioning materials 450 are stacked, a hole penetrating the body may be formed only in the buffering material 450 stacked on some layers, and the like may be adopted in consideration of the intensity of vibration or impact to be absorbed.

The roller unit 300 and the shock-absorbing support unit 400 according to an embodiment having the configuration described above, the vibration or shock generated according to the rotation and driving of the moving belt 110, the support body 310 moves back and forth As it vibrates in the direction, it is not only possible to enable smooth driving of the moving belt 110 by buffering it using the buffer support 400, but also to absorb these vibrations and shocks to the upper surface of the moving belt 110. It is also possible to prevent path deviation by stabilizing the loaded workpiece, and it is possible to further improve the durability of the moving belt 110 .

The shot blasting system 10 for surface treatment for improving the painting quality according to an embodiment of the present invention is installed on one side of the exit of the shot blasting device to determine whether or not there is an insufficiently processed part in the processed workpiece An insufficient part determining unit 600 may be further included.

In one embodiment, the insufficient part determination unit 600 may include a support column 610, a floor support 620, a camera 630, and a determination module 640.

The support pillar 610 has a camera installed at the top, can support the camera, is formed in a cylindrical shape, but is hollow and has a coupling groove 611 formed on one side thereof.

The floor support 620 can support the floor and the support pillar 610 at the same time by being fitted with the support pillar 610 .

The camera 630 may be coupled to the upper portion of the support pillar 610 to photograph the processed workpiece.

The determination module 640 may determine whether the processing is insufficient. More specifically, it is possible to determine whether or not machining is insufficient by comparing the surface image of the workpiece taken by the camera 630 with previously accumulated data on the machined surface. That is, it is possible to determine whether the preprocessing grade of SA2 1/2 of the ISO standard and SSPC-SP10 of the SSPC standard is satisfied through various data comparisons.

Meanwhile, the floor support 620 may include a bottom pillar 621 and a coupling pillar 622 .

The coupling column 622 is made of a hollow shape, and the cross section in contact with the sidewall of the lower end of the support column 610 is coupled so that relative rotation of the support column 610 with respect to the floor support 620 is prevented. It may be characterized in that a coupling protrusion 6221 fitted into the groove 611 is formed.

More specifically, the coupling groove 611 includes a first coupling groove 611a, a second coupling groove 611b, and a third coupling groove 611c. The first coupling groove 611a extends upward from the lower end of the support pillar 610 along the longitudinal direction of the support pillar 610 . The second coupling groove 611b is formed by extending a certain length in the circumferential direction from the upper end of the first coupling groove 611a. And the third coupling groove (611c) is formed extending upward along the longitudinal direction of the support column 610 from one end of the second coupling groove. Also, the coupling protrusion 6221 is formed shorter than the coupling protrusion on the inner circumferential surface of the coupling pillar 622 . The coupling protrusion 6221 may be formed in a square or rectangular shape, for example.

A process of installing the support pillar 610 to the coupling pillar 622 will be described as follows.

The support column 610 is lowered from the top of the coupling column 622 so that the coupling protrusion 6221 provided on the coupling column 622 can be fitted into the first coupling groove 611a.

After slowly lowering the support pillar 610 to insert the coupling protrusion 6221 to the top of the first coupling groove 611a, the second coupling groove extending from the top of the first coupling groove 611a along the circumferential direction. The support pillar 610 is rotated with respect to the engaging pillar 622 so that the engaging protrusion 6221 is moved along (611b) to one end of the second engaging groove 611b, and then the second engaging groove 611b The support pillar 610 is inserted from the top of the coupling pillar 622 so that the coupling protrusion 6221 is inserted into the third coupling groove 611c extending upward along the longitudinal direction of the support column 610 from one end of the lower it

As a result, the coupling protrusion 6221 is inserted into the third coupling groove 611c via the first coupling groove 611a and the second coupling groove 611b.

In this embodiment, as described above, since the sidewall of the lower end of the support pillar 610 is supported in contact with the coupling pillar 622, the standing state of the support pillar 610 is maintained, and the coupling protrusion 6221 is formed in the coupling groove. Since it maintains the inserted state, rotation of the support pillar 610 with respect to the coupling pillar 622 is prevented.

The coupling protrusion 6221 according to another embodiment of the present invention may be provided to support the uppermost end of the coupling groove 611 and relieve friction with the uppermost portion of the coupling groove 611 .

The coupling protrusion 6221 may include a center portion 62211, a buffer portion 62215, and a lead-out portion 62219.

The central portion 62211 is for supporting the lead-in/out portion 62219 that is in contact with the uppermost end of the coupling groove 611, may be fixed to the coupling column 622, and has a substantially cylindrical or cylindrical shape, but has a square cross section. It may have a shape such as

The central portion 62211 may be provided to have sufficient strength and area to support the uppermost portion of the coupling groove 611 . To install the shock absorber 62215 and the lead-in/out portion 62219, an installation portion 62212 is formed on the upper surface of the center portion 62211. The buffer unit 62215 may be installed in the installation unit 62212 to buffer and support the pull-out unit 62219. As an example, the shock absorber 62215 may be fixedly installed on the lower surface of the installation unit 62212. As an example, the buffer unit 62215 may be provided as an elastic spring, but may also be provided as an elastic body other than an elastic spring.

The pull-out unit 62219 may be installed in the installation unit 62212 to be drawn in and out. The lead-out portion 62219 may be provided to have a cross-sectional shape corresponding to that of the installation portion 62212.

In the illustrated example, the lead-in/out portion 62219 and the installation portion 62212 are provided in circular cross-sectional shapes, but other cross-sectional shapes such as polygons are also possible. The lower surface of the pull-out unit 62219 may be fixed to the upper end of the buffer unit 62215 to be buffered by the buffer unit 62215.

The upper surface of the pull-out portion 62219 is drawn out of the installation portion 62212 in a state where the uppermost end of the coupling groove 611 is not supported, and the lower surface of the uppermost portion of the coupling groove 611 when the uppermost portion of the coupling groove 611 is lowered. It may come into contact with and be drawn into the installation part 62212 by the weight of the uppermost end of the coupling groove 611.

When the uppermost end of the coupling groove 611 is lifted from the upper end of the center portion 62211, the upper end of the pull-out portion 62219 is drawn out of the installation portion 62212 by the restoring force of the buffer portion 62215.

When the top end of the coupling groove 611 is supported on the top of the central portion 62211, the top end of the coupling groove 611 presses the pull-out portion 62219 installed at the top of the center portion 62211.

Therefore, it is possible to prevent the deviation of the uppermost end of the coupling groove 611 in the left and right directions without welding the center portion 62211 and the uppermost portion of the coupling groove 611 with a separate bracket, and shocks generated from external shocks can be prevented. can alleviate

When the uppermost end of the coupling groove 611 is lifted on the center portion 62211, the withdrawing/output portion 62219 is lifted and restored to its original position by the restoring force of the buffer portion 62215.

Then, when working on the uppermost part of the other coupling grooves 611, the above process is repeated so that the uppermost ends of the various coupling grooves 611 are sequentially supported and the work can be performed.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and is commonly used in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims. Of course, various modifications are possible by those with knowledge of, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

10. Shot blasting system for surface treatment to improve painting quality

Claims (3)

In the shot blasting device for processing the surface of a workpiece by spraying a shot at a high speed on a workpiece,
A transfer unit including a moving belt formed in a mesh form so that the sprayed shortball can be discharged well after processing; includes,
A short ball injection unit installed on the upper and lower portions of the shot blasting device and including an impeller for applying centrifugal force to the shot ball to spray the shot ball to the workpiece being transported to process the surface of the workpiece; and
A short ball collection unit for collecting the short balls used in the processing process; further comprising,
The short ball collection unit,
a blower that pushes the short ball toward the center of the transfer unit;
a collection cone formed in the shape of a cone with both sides inclined and installed under the transfer part; and
A shortball transfer pipe formed at the lower spigot of the collection cone and transporting the collected shortballs to the impellers installed at the upper and lower parts;
The transfer unit,
A roller unit including a plurality of auxiliary rollers spaced apart from each other on both sides and rotatably installed on the inside so that the lower portion of the moving belt can be seated and moved; further comprising,
Insufficient part determination unit installed on one side of the exit of the shot blasting device for checking and determining whether or not there is an insufficiently processed part in the processed workpiece; further comprising,
The insufficient part determination unit,
a support column for supporting the camera;
a floor support body fitted with the support column to support the floor and the support column at the same time;
a camera coupled to an upper portion of the support pillar and photographing the processed workpiece; and
Including; a judgment module for determining whether processing has become insufficient;
The support pillar is
A camera is installed at the top, it is formed in the shape of a cylinder, but it is made of a hollow shape, and a coupling groove is formed on one side,
The floor support,
Square pillar-shaped floor pillars for supporting the floor; and
A coupling column installed on the top of the floor column and coupled to the support column; includes,
The coupling pillar,
It is made of a hollow shape, and the cross section in contact with the sidewall of the lower end of the support column is characterized in that a coupling protrusion fitted into the coupling groove is formed to prevent relative rotation of the support column with respect to the floor support body,
The coupling groove,
A first coupling groove extending upward from the lower end of the support pillar along the longitudinal direction of the support pillar;
a second coupling groove formed by extending a certain length in a circumferential direction from an upper end of the first coupling groove; and
A third coupling groove formed extending upward from one end of the second coupling groove along the longitudinal direction of the support pillar; includes,
The coupling protrusion,
a central part for supporting the lead-out portion in contact with the uppermost end of the coupling groove, which may be fixed to the coupling column, and is formed in a columnar or cylindrical shape and has an installation portion formed on an upper surface thereof;
A buffer unit fixedly installed on the lower surface of the installation unit to buffer and support the withdrawal unit; and
A shot blasting system for surface treatment that improves painting quality, including; a drawing-in and out portion formed in a cross-sectional shape corresponding to the installation portion and installed to be drawn in and out of the installation portion.
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