KR20190112996A - Workpiece parts catcher - Google Patents

Abstract

The present invention relates to a workpiece collection apparatus, which comprises: a head unit to which a workpiece is detachably installed by a chuck; a discharge unit installed in a vertically lower portion of the head unit; and a transfer unit having one side adjacent to the head unit and the other side adjacent to the discharge unit and forming an inclination with a bed in a vertical direction to transfer the workpiece to the discharge unit. When the workpiece is moved along the transfer unit, the air is sprayed to a contact surface of the workpiece and the transfer unit.

Description

Workpiece parts catcher

The present invention relates to a workpiece recovery apparatus, and more particularly, to a workpiece recovery apparatus that can improve the discharge capacity of the workpiece by reducing the frictional force applied to the workpiece through the air injected from a plurality of holes formed in the conveying unit. .

In general, a machine tool refers to a machine that uses various cutting or non-cutting methods to process a metal / non-metal workpiece into a desired shape and dimension using a suitable tool.

Various types of machine tools, including turning centers, vertical / horizontal machining centers, door machining centers, swiss turns, electric discharge machines, horizontal NC boring machines, CNC lathes, and multi-task machines, are widely used for various applications in various industrial sites. It is used.

Among the machine tools, the multi-tasking machine is a turning center equipped with a multi-functional automatic tool changer (ATC) and a tool magazine for various machining types such as turning, drilling, tapping, and milling. In the multi-task machine, the operator manually loads or replaces the tools required for machining and manually mounts the tools in the tool magazine.

BACKGROUND OF THE INVENTION In general, various types of machine tools currently in use include operation panels to which numerical control (NC) or computerized numerical control (CNC) technology is applied. This control panel has various function switches or buttons and a monitor.

In addition, the machine tool is a table for seating the workpiece as a workpiece and transported for processing the workpiece, a pallet for preparing the workpiece before processing, a tailstock for supporting the spindle or the workpiece that is rotated by combining the tool or the workpiece, and a dustproof hole. And the like.

In general, in a machine tool, a table, a tool bar, a main shaft, a tailstock, a dust shield, etc. are provided with a conveying unit for conveying along a feed shaft to perform various processing.

In addition, a machine tool generally uses a plurality of tools for various processing, and a tool magazine or a turret is used in the form of a tool storage space for storing a plurality of tools.

Such a machine tool uses a plurality of tools for various processing, and a tool magazine is used in the form of a tool storage space for storing a plurality of tools.

In general, the machine tool is provided with an automatic tool changer (ATC) for retracting or retracting a specific tool from the tool magazine by the command of the numerical control unit to improve the productivity of the machine tool.

In addition, machine tools are typically equipped with an Automatic Pallet Changer (APC) to minimize downtime. An automatic pallet changer (APC) automatically changes pallets between the workpiece machining area and the workpiece installation area. Workpieces can be mounted on pallets.

In general, a machine tool is provided with a workpiece recovery device for automatically recovering the workpiece is completed. Such a workpiece recovery device is commonly called a parts catcher. Since the workpiece recovery device is not a device directly involved in the machining operation which is the main purpose of the machine tool, the installation space allocated to the workpiece recovery device becomes limited.

There are many types of workpiece recovery devices, but there are typically pocket and sliding methods.

1 illustrates a conventional bucket type workpiece recovery apparatus, and FIG. 2 illustrates a conventional sliding type workpiece recovery apparatus.

Referring to Figure 1 will be described a bucket-type workpiece recovery device. In the bucket-type workpiece recovery device, a work piece detachable to the head 1 is dropped by the chuck, and the bucket 4 collects it. The bucket 4 is connected to the central axis 3 via the arm 5 and is pivotable about the central axis 3. The swinging arm 5 and the bucket 4 are adjacent to the discharging device 2 and transfer the workpiece to the discharging device 2.

This bucket-type workpiece recovery device has the advantage that the collection position and the discharge position of the workpiece is clear and can easily discharge light material. However, if the weight of the workpiece is heavy, there is a problem that the discharge position is distorted due to the deflection phenomenon, there is a fear of damage to the arm (5) due to the nature of the joint structure. In addition, there is a problem that a lot of installation space should be allocated to secure the rotation radius.

The workpiece recovery apparatus of the sliding method will be described with reference to FIG. 2. Sliding workpiece recovery device is provided with a plate (6) that can be rotated about the central axis (3), the plate 6 forms a slope with a predetermined angle relative to the bed. At this time, one side of the plate 6 is adjacent to the head 1, the other side is adjacent to the discharge device 2, the workpiece falling on one side is transported to the discharge device 2 by sliding due to the inclination.

Due to the plate structure having a wide bottom surface, such a sliding type workpiece recovery device can transfer various types of materials, and there is an excellent durability because it is not an arm type. In addition, unlike the bucket method, since the turning radius may be short, there is an advantage of not allocating a lot of installation space. Therefore, in recent years, the workpiece recovery device of the sliding method rather than the bucket method has been used a lot.

However, the sliding workpiece recovery device has a low ejection capacity, which is the most basic function of the workpiece recovery device when the inclination angle of the plate 6 is low, when the friction area of the workpiece is large, and the weight of the workpiece is light. There is a problem that stays on the plate (6). The closer the inclination to 90 degrees is better, but there is a problem that is difficult to apply because of the constraints of the space available for installation.

Therefore, there is a need for an invention that can improve the discharge capability of the workpiece recovery apparatus of the sliding method constrained by the shape, weight, and inclination angle of the workpiece.

Republic of Korea Patent Publication No. 10-0149784 Republic of Korea Patent Publication No. 10-1555066

The present invention is to solve the above problems, an object of the present invention is to form an air layer on the upper surface of the conveying portion through the air injected from a plurality of holes formed in the conveying portion can reduce the friction force applied from the conveying portion to the workpiece It is to provide a workpiece recovery device.

In addition, to provide a workpiece recovery apparatus that can increase the frictional force reducing effect by increasing the thickness of the air layer formed on the upper surface of the first plate by setting the angle of the tapered surface of the hole formed in the first plate and the first plate at an acute angle. .

In addition, a plurality of holes formed in the conveying part is separated into a first hole group and a second hole group so that the first hole group and the second hole group are not disposed on parallel lines, and thus the workpiece retrieval which can expand the overlapping range of the air layer. To provide a device.

In addition, it is to provide a workpiece recovery apparatus that can form an auxiliary hole to inject air in the direction in which the workpiece slides to improve the discharge capacity of the workpiece.

In addition, to provide a workpiece recovery apparatus that can form a flow path for inducing the injection of air through the grooves connecting the plurality of holes to increase the friction force reduction effect by increasing the thickness of the air layer formed on the upper surface of the first plate.

In order to achieve the object of the present invention, a workpiece recovery apparatus according to the present invention includes a head portion on which a workpiece is detachably installed by a chuck; A discharge part installed below the head part vertically; And a conveying part having one side adjacent to the head part and the other side adjoining the discharge part to form an inclination in a vertical direction with a bed to transfer the workpiece to the discharge part. , The air is injected to the contact surface of the workpiece and the transfer unit.

In addition, the conveying part of the workpiece recovery apparatus according to an embodiment of the present invention comprises a first plate extending in the longitudinal direction; A second plate formed to be spaced downward from the first plate; A hollow portion formed between the first plate and the second plate; And a plurality of holes penetrating through the first plate, wherein the air introduced through the hollow part is injected through the plurality of holes.

In addition, the tapered surface formed in each of the plurality of holes of the workpiece recovery apparatus according to an embodiment of the present invention is characterized in that it forms an angle of more than 0 degrees and less than 90 degrees with the first plate.

In addition, the plurality of holes of the workpiece recovery apparatus according to an embodiment of the present invention, the first hole group disposed at a predetermined interval along the first reference line extending in the longitudinal direction; And a second hole group disposed at predetermined intervals along a second reference line extending in the longitudinal direction, wherein the first reference line and the second reference line are formed to cross the first plate in a width direction. The adjacent first hole group and the second hole group are not disposed on the same parallel line in the width direction.

In addition, the front end of the second plate of the workpiece recovery apparatus according to an embodiment of the present invention is spaced apart and bent upwards to form the auxiliary hole, the air through the plurality of holes and the auxiliary hole It is characterized in that the injection.

In addition, both sides of the first plate of the workpiece recovery apparatus according to an embodiment of the present invention is characterized in that the wings are formed extending in the longitudinal direction to prevent the separation of the workpiece.

In addition, the workpiece recovery apparatus according to an embodiment of the present invention further comprises a groove formed to be recessed along the first hole group and the second hole group on the lower surface of the first plate; The air is characterized by moving along the groove.

In addition, the workpiece recovery apparatus according to an embodiment of the present invention includes a control unit for controlling the pressure of the air flowing through the air supply passage connected to the inlet for supplying air to the hollow portion in accordance with the inclination angle of the transfer unit; It further comprises.

In the workpiece recovery apparatus according to the present invention, air injected from a plurality of holes formed in the transfer unit forms an air layer on the transfer unit upper surface. The air layer reduces the frictional force from the conveying portion applied to the workpiece, so that the workpiece can be discharged smoothly regardless of the weight, the shape of the workpiece, and the inclination angle of the conveying portion. As a result, the number of workpieces that can be discharged per unit time is increased, thereby increasing productivity.

In addition, since the angle between the tapered surface of the hole formed in the first plate and the first plate is set at an acute angle, the time for air to stay on the first plate upper surface is increased. Therefore, there is an effect that the thickness of the air layer becomes thick and the frictional force reducing effect is increased.

In addition, since the auxiliary hole is formed and the air injected through the auxiliary hole presses the work piece in the direction in which the work piece slides, there is an effect of improving the discharge capacity of the work piece.

In addition, the plurality of holes formed in the conveying part may be divided into a first hole group and a second hole group so that the first hole group and the second hole group are not disposed on parallel lines, thereby expanding the overlapping range of the air layer. Even if one hole is blocked, adjacent holes can cover it, which is effective to maintain the frictional force reducing effect.

In addition, the effect of increasing the frictional force reduction effect by increasing the thickness of the air layer formed on the upper surface of the first plate by forming a flow path for inducing the injection of air through the groove connecting the plurality of holes by the transfer unit according to another embodiment There is.

1 shows a conventional bucket type workpiece recovery apparatus.
Figure 2 shows a conventional workpiece recovery apparatus of the sliding method.
Figure 3 shows a perspective view of the workpiece recovery apparatus according to the present invention.
Figure 4 shows the vicinity of the transfer portion of the workpiece recovery apparatus according to the present invention.
5 is a schematic view showing the arrangement of holes in the workpiece recovery apparatus according to the present invention.
Figure 6 shows a side cross-sectional view of a workpiece recovery apparatus according to the present invention.
7 (a) and 7 (b) compare the formation range of the air layer according to the arrangement of the holes.
Figure 8 is an enlarged view of the rear of the transfer unit according to another embodiment of the present invention.

Hereinafter, with reference to the drawings of the workpiece recovery apparatus according to an embodiment of the present invention will be described in detail. The following embodiments are provided as examples to ensure that the spirit of the present invention can be sufficiently conveyed to those skilled in the art. Therefore, the present invention is not limited to the embodiments described below and may be embodied in other forms. In the drawings, the size and thickness of the device may be exaggerated for convenience. Like numbers refer to like elements throughout the specification.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only the embodiments are to make the disclosure of the present invention complete, and the general knowledge in the technical field to which the present invention belongs. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout. In the drawings, the size and relative size of layers and regions may be exaggerated for clarity.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprise” and / or “comprising” refers to a component, step, operation and / or element that is present in one or more other components, steps, operations and / or elements. Or does not exclude additions.

The definitions of the terms used below are as follows. The "length direction" is the x-axis direction with respect to FIG. 3 in the same member, and the "width direction" is the y-axis direction with respect to FIG. 3 in the direction orthogonal to the longitudinal direction in the same member. In addition, the "vertical direction" means the z-axis direction in the direction which forms the height orthogonal to a longitudinal direction and the width direction at the same member. In addition, "upward" means the upward direction in a vertical direction, and "downward" means the downward direction in a vertical direction. In addition, the inner side means a relatively near center in the same member. In addition, "front" means the vicinity of a discharge part based on a conveyance part, and "rear" means the vicinity of a head part based on a conveyance part.

Figure 3 shows a perspective view of the workpiece recovery device according to the present invention, Figure 4 shows the vicinity of the conveying portion of the workpiece recovery device according to the present invention, Figure 5 shows a diagram showing the arrangement of the hole of the workpiece recovery device according to the present invention. 6 shows a side cross-sectional view of a workpiece recovery apparatus according to the present invention. 7 (a) and 7 (b) is a comparison of the formation range of the air layer according to the arrangement of the hole, Figure 8 is an enlarged view of the back of the transfer unit according to another embodiment of the present invention.

3 to 8, the workpiece recovery apparatus according to the present invention will be described.

Figure 3 shows a perspective view of the workpiece recovery apparatus according to the present invention, the workpiece recovery apparatus according to the present invention includes a head portion 100, the discharge unit 200 and the transfer unit 300.

Head portion 100 is a spindle head of the machine tool, the chuck 110 is formed at the tip. The workpiece 10 is detachably coupled to the chuck 110. Workpiece 10 is completed is accommodated in the transfer unit 300 to be described later. In FIG. 3, the cylindrical work piece 10 is illustrated as an example, but is not limited thereto.

The discharge unit 200 is a place for discharging the workpiece 10 transferred by the transfer unit 300. Discharge unit 200 is preferably adjacent to the other side of the transfer unit (300). Therefore, the workpiece 10 flows into the discharge part 200 via the transfer part 300.

At this time, the discharge unit 200 is preferably installed to be located below the head portion 100 vertically. More specifically, it is preferable that the height in the vertical direction of the head part 100 based on the bed of the machine tool is higher than the height in the vertical direction of the discharge part 200.

Due to this structure, when the conveying unit 300 is pivoted so that one side of the conveying unit 300 is adjacent to the head portion 100, and the other side of the conveying unit 300 is adjacent to the discharge unit 200, a work piece is formed. 10 slides from the head part 100 toward the discharge part 200. The workpiece 10 is moved to the discharge part 200 by its own weight without applying a separate physical force.

In addition, as shown in Figures 3 and 4, according to another embodiment of the present invention, the workpiece recovery apparatus according to the present invention inlet for supplying air to the hollow portion 330 according to the inclination angle of the transfer portion 300 The controller 400 may further include a controller 400 for controlling a pressure of air introduced through the air supply passage 410 connected to the 350.

That is, the control unit 400 is installed in the main body or the discharge unit 200 of the machine tool. The control unit 400 controls the pressure of the air supplied to the injection hole 35 and the hollow portion 330 through the air supply passage 410 according to the inclination angle of the transfer unit 300. That is, when the conveyance part 300 forms a large angle with the ground or the discharge part 200, as the frictional force decreases, air of a small pressure is injected into the inlet 350 and the hollow part 330 through the air supply passage 410. Supply. On the contrary, when the conveyance part 300 forms a small angle with the ground or the discharge part 200, as the frictional force increases, air of a small pressure is injected into the inlet 350 and the hollow part 330 through the air supply passage 410. Supply. As such, the friction force received by the discharged workpiece is changed according to the inclination angle formed by the transfer unit 300 with the ground or the discharge unit 200, and the optimum air supply pressure is controlled and supplied according to the change of the friction force to ensure the reliability of the workpiece recovery operation. And efficiency can be maximized and maintenance costs can be reduced.

In addition, the control unit 400 is connected to the injection hole 350 to supply air to the hollow part 330 according to the shape or weight of the final processed workpiece through the CNC program and the machining program, etc. previously input to the control unit 400. The pressure of the air introduced through the air supply passage 410 may be controlled.

Figure 4 shows the vicinity of the conveying part 300 of the workpiece recovery device according to the present invention, Figure 5 shows a schematic view of the arrangement of the hole 340 of the workpiece recovery device according to the present invention, Figure 6 shows Side cross-sectional view of the workpiece recovery device is shown. Hereinafter, the transfer unit 300 of the workpiece recovery apparatus according to the present invention will be described in detail with reference to FIGS. 4 to 6.

The transfer part 300 is located between the head part 100 and the discharge part 200. One side of the transfer unit 300 is adjacent to the head portion 100, the other side of the transfer unit 300 is adjacent to the discharge unit 200. As a result, the transfer part 300 forms an inclination in the vertical direction with respect to the bed of the machine tool. Therefore, the workpiece 10 first received on one side of the transfer part 300 slides along the transfer part 300 and flows into the discharge part 200.

The transfer part 300 is coupled to the rotating shaft 301 to pivot. Therefore, there is an advantage in that the space can be minimized by adjoining the head part 100 and the discharge part 200 only at a necessary time for discharging the workpiece 10.

The transfer part 300 includes a first plate 310, a second plate 320, a hollow part 330, a hole 340, and an injection hole 350.

The first plate 310 extends in the longitudinal direction. For example, as shown in Figure 4 it is preferably a rectangular parallelepiped having a predetermined thickness.

The second plate 320 extends in the longitudinal direction like the first plate 310. The second plate 320 is spaced downward from the first plate 310. For this reason, the hollow part 330 is formed between the first plate 310 and the second plate 320.

The injection hole 350 is formed at one point where the first plate 310 or the second plate 320 or the first plate 310 and the second plate 320 contact each other. For example, the injection hole 350 may be formed in the vicinity of the discharge part 200. When the injection hole 350 is formed in the vicinity of the discharge part 200, the air 20 introduced through the injection hole 350 is sequentially flowed from the hollow part 330 from the front part to the rear part to be formed in the transfer part 300. It is evenly distributed to the plurality of holes 340. As a result, the phenomenon in which the air 20 is sprayed only in a specific region is prevented, and the friction force received by the work 10 may be maximized.

Although not shown in the drawing, a device capable of introducing external air into the inlet 350 may be provided, and the outside air is introduced into the hollow part 330 through the inlet 350.

A plurality of holes 340 are formed in the first plate 310. The plurality of holes 340 are formed through the first plate 310. Therefore, the air 20 introduced into the hollow part 330 is injected above the first plate 310 through the plurality of holes 340. The upper surface of the first plate 310 is a contact surface where the workpiece 10 and the transfer part 300 abut, and the air 20 is injected into the contact surface.

Therefore, as shown in FIG. 6, the air layer 21 formed by the injected air 20 is formed on the upper surface of the first plate 310 (indicated by dotted lines in FIG. 6). In the conventional case, the air layer 21 is absent and the work 10 directly contacts the portion corresponding to the upper surface of the first plate 310 of the present invention. Therefore, the workpiece 10 receives the friction force of the portion corresponding to the upper surface of the first plate 310 as it is.

If the workpiece 10 is heavy, the shape is simple, or the inclination is close to 90 degrees, it does not matter, but in the opposite case, the workpiece 10 is not smoothly sliding due to the friction force, the discharge portion 200 There is a problem that does not transfer to the corresponding part.

However, according to the workpiece recovery apparatus according to the present invention, since the air layer 21 is formed between the workpiece 10 and the upper surface of the first plate 310, the workpiece 10 has a coefficient of friction that the first plate 310 has. It will not be applied as it is. Thus, the effect that the frictional force applied to the work 10 is reduced.

Accordingly, since the sliding operation of the workpiece 10 in the transfer part 300 is performed more smoothly than in the conventional case, the shape, the weight, and the constraints of the inclination of the transfer part 300 are weakened so that the workpiece ( 10) The effect of increasing the discharge capacity occurs.

In addition, the time for the workpiece 10 to stay without being discharged is reduced, and the amount of the workpiece 10 that can be produced per hour is relatively increased, thereby expressing an effect of improving the productivity of the workpiece 10.

A tapered surface 3401 is formed at an interface between the plurality of holes 340 and the first plate 310. The tapered surfaces 3401 respectively formed in the plurality of holes 340 have a predetermined angle with the first plate 310.

At this time, it is preferable that a predetermined angle is more than 0 degree and less than 90 degree. For example, FIG. 6 illustrates the injection of air 20 at a 45 degree angle. Here, 90 degrees means an angle between the tangent at one point of the first plate 310 and the first plate 310, and a range of more than 0 degrees and less than 90 degrees is tapered at the upper end of the tapered surface 3401. It means the range when it is located rearward in the longitudinal direction of the transfer part 300 from the lower end of the surface (3401).

When the angle is 0 degrees, since the air 20 cannot be injected, it is preferable that the angle is more than 0 degrees. In addition, when the angle is greater than or equal to 90 degrees, the injection direction of the air 20 is formed in front of the transfer part 300 based on the tangent of the first plate 310. On the contrary, in the case of more than 0 degrees and less than 90 degrees, the injection direction of the air 20 is formed to the rear of the transfer part 300 based on the tangent of the first plate 310.

In the case of the front of the transfer unit 300 based on the tangent of the first plate 310, the air 20 injected from the hole 340 flows in a descending direction along the inclination of the first plate 310. However, as in the present invention, when the angle formed by the tapered surface 3401 with the first plate 310 is greater than 0 degrees and less than 90 degrees, the injected air 20 reverses the inclination of the first plate 310. After the first flow in the lifting direction, and after a predetermined time passes in the direction of falling along the inclination of the first plate (310). Therefore, there is an advantage that the time for staying on the upper surface of the first plate 310 is increased. Therefore, there is an advantage that the effect that can reduce the friction force applied to the workpiece 10 is increased.

An auxiliary hole 321 may be formed at the rear of the transfer part 300. Referring to FIG. 6, the front end of the second plate 320 extends from the first plate 310 in the longitudinal direction, is bent and spaced apart from the first plate 310.

As a result, an auxiliary hole 321 through which air 20 may be further injected is formed between the front end of the second plate 320 and the top surface of the first plate 310. The air 20 introduced into the hollow part 330 is primarily injected through the hole 340, and the air 20 not injected through the hole 340 is injected through the auxiliary hole 321.

The air 20 injected through the auxiliary hole 321 flows from the rear to the front of the first plate 310. At this time, since the work 10 also slides from the rear to the front due to the height difference between the head part 100 and the discharge part 200 and the inclination thereof, the work 10 is sprayed through the moving direction and the auxiliary hole 321 of the work 10. The direction of the air 20 is the same. Therefore, since the work 10 receives the force moving in the direction of the discharge part 200, there is an advantage that the discharge effect of the work 10 is increased.

5, a plurality of holes 340 according to the present invention will be described in detail. The plurality of holes 340 form a first hole group 341 and a second hole group 342.

The first hole group 341 is formed at a predetermined interval in the longitudinal direction along the imaginary first reference line A formed in the first plate 310. In addition, the second hole group 342 is formed along the virtual second reference line B formed on the first plate 310 at a predetermined interval in the longitudinal direction.

The first reference line A and the second reference line B are formed to intersect the first plate 310 in the width direction as shown in FIG. 5. At this time, it is preferable that the first hole group 341 and the second hole group 342 adjacent to each other are not disposed on the same parallel line C in the width direction.

In order to explain the effects thereof, reference is made to FIG. 7. FIG. 7A illustrates the injection range of the air 20 when the first hole group 341 and the second hole group 342 adjacent to each other are disposed on the same parallel line C in the width direction. FIG. 7B shows the injection of air 20 when the first hole group 341 and the second hole group 342 adjacent to each other are not disposed on the same parallel line C in the width direction as in the present invention. The range is shown.

7 (a) and 7 (b) are compared. Assume that the air layer 20 formed by the air 20 injected from the hole 340 is circular. In FIG. 7A, an overlapping range with the air layer 20 generated in the holes 340 adjacent to each other in the width direction is generated, and overlapping ranges with the holes 340 adjacent to each other in the longitudinal direction are not generated.

However, in FIG. 7B, the air layer 20 formed in one of the holes 340 is formed in a circle around the hole 340, and the air layer 20 is formed in the adjacent plurality of holes 340. Overlaps. Thus, the effect of expanding the overlapping range occurs.

If the workpiece recovery apparatus is used continuously, the hole 340 may be blocked by foreign substances generated in the workpiece 10.

In this case, when the plurality of holes 340 are formed in a zigzag pattern as in the present invention, when one of the holes 340 is blocked and the air 20 is not injected, the holes 340 adjacent to the blocked holes 340 are formed. This can cover this range is wider than the case according to Figure 7 (a) it is possible to minimize the loss of the air layer (21).

Wing parts 311 may be formed at both side portions of the first plate 310. The wing portion 311 has a predetermined height in the vertical direction and preferably extends in the longitudinal direction along the first plate 310.

Due to the configuration of the wing 311, there is an effect that the workpiece 10 can be prevented from being separated out of the transfer unit 300 in the process of sliding along the transfer unit 300. This increases the discharge capacity of the workpiece recovery device.

8 is an enlarged view of the rear surface of the transfer unit 300 according to another embodiment of the present invention. Hereinafter, with reference to FIG. 8 to describe the configuration and the effects of the transfer unit 300 according to another embodiment.

Transfer unit 300 according to another embodiment includes all of the configuration of the transfer unit 300 according to an embodiment, and further includes a groove (360).

The groove 360 is formed to be recessed along the first hole group 341 and the second hole group 342. In addition, the groove 360 is preferably formed in a form connecting the first hole group 341 or the second hole group 342 disposed on the parallel line (C).

In addition, the groove 360 is also formed in the longitudinal direction to connect the grooves 360 connecting the first hole group 341 or the second hole group 342. As a result, as shown in FIG. 8, one flow path connecting all of the plurality of holes 340 formed in the first plate 310 is formed.

Unlike one embodiment, when the air 20 is introduced into the hollow portion 330 according to another embodiment, the flow of the air 20 is induced through the flow path to the plurality of holes 340 Is sprayed on. Therefore, the effect of increasing the injection amount of the air 20 according to another embodiment than the injection amount of the air 20 according to an embodiment is generated.

Therefore, the thickness of the air layer 21 is thicker than in the case of the exemplary embodiment, thereby further increasing the effect of reducing the frictional force applied to the work 10. In addition, the discharge capacity of the work 10 can be improved to increase productivity.

Hereinafter, the process of forming the air layer 21 by injecting the air 20 is examined. The air 20 introduced through the injection hole 350 flows in the hollow part 330.

The air 20 flows from the front to the back of the transfer part 300 and passes through the plurality of holes 340 formed in the first plate 310 and is injected upward of the first plate 310. In addition, the non-injected air 20 is additionally injected along the auxiliary hole 321.

Thus, the air layer 21 is formed on the upper surface of the first plate 310. The air layer 21 is positioned between the work piece 10 and the first plate 310 to reduce the frictional force applied to the work piece 10. Therefore, even when the weight of the workpiece 10 is light, or has a large area, or the like, or even when the inclination angle of the transfer part 300 is low, the workpiece 10 may be smoothly discharged, thereby improving productivity. It works.

In addition, the air 20 injected from the auxiliary hole 321 pressurizes the workpiece 10 toward the discharge part 200, thereby maximizing the discharge capacity.

Although the detailed description of the present invention has been described with reference to a preferred embodiment of the present invention, those skilled in the art or those skilled in the art having ordinary knowledge in the technical field described in the claims to be described later and It will be appreciated that various modifications and variations can be made in the present invention without departing from the scope of the art. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

1: head, 2: ejector,
3: central axis, 4: bucket,
5: arm, 6: plate,
10: workpiece, 20: air,
21: air layer, 100: head portion,
110: chuck, 200: discharge part,
300: feeder, 301: rotation axis,
310: first plate, 311: wing portion,
320: second plate, 321: auxiliary hole,
330: hollow part, 340: hole,
3401: tapered surface, 341: first hole group,
342: second hole group, 350: injection hole,
360: groove, 400: control unit,
410: air supply passage, A: first reference line,
B: second reference line, C: parallel line.

Claims (8)

A head portion on which the work piece is detachably installed by the chuck;
A discharge part installed below the head part vertically; And
And a conveying part having one side adjacent to the head part and the other side adjacent to the discharge part, forming a slope in a vertical direction with a bed to transfer the workpiece to the discharge part.
And when the workpiece moves along the conveying portion, air is sprayed onto the contact surface between the workpiece and the conveying portion.
The method of claim 1,
The transfer unit,
A first plate extending in the longitudinal direction;
A second plate formed to be spaced downward from the first plate;
A hollow portion formed between the first plate and the second plate; And
And a plurality of holes penetrating through the first plate.
The air flowing through the hollow portion is a workpiece recovery device, characterized in that the injection through the plurality of holes.
The method of claim 2,
The tapered surface formed in each of the plurality of holes, the workpiece recovery device characterized in that it forms an angle of more than 0 degrees and less than 90 degrees with the first plate.
The method of claim 2,
The plurality of holes,
First hole groups disposed at predetermined intervals along a first reference line extending in the longitudinal direction; And
A second hole group disposed at predetermined intervals along the second reference line extending in the longitudinal direction;
The first reference line and the second reference line are formed to cross the first plate in the width direction, wherein the adjacent first hole group and the second hole group are not disposed on the same parallel line in the width direction. Workpiece recovery device.
The method of claim 2,
A tip of the second plate is spaced apart and bent upwardly from the first plate to form an auxiliary hole,
Air is sprayed through the plurality of holes and the auxiliary hole, the workpiece recovery apparatus.
The method of claim 2,
Both sides of the first plate is formed extending in the longitudinal direction is a workpiece recovery device characterized in that the wing portion is formed to prevent the separation of the workpiece.
The method of claim 4, wherein
And a groove formed on a bottom surface of the first plate to be recessed along the first hole group and the second hole group.
Air entering the hollow portion is a workpiece recovery device, characterized in that for moving along the groove.
The method of claim 2,
And a control unit for controlling a pressure of air introduced through an air supply passage connected to an inlet for supplying air to the hollow part according to the inclination angle of the transfer part.

Images