KR20170009527A

KR20170009527A - Variable Suction Force type Parts Feeder

Info

Publication number: KR20170009527A
Application number: KR1020150101744A
Authority: KR
Inventors: 김영수
Original assignee: (주)신화산기
Priority date: 2015-07-17
Filing date: 2015-07-17
Publication date: 2017-01-25

Abstract

The variable attraction force type parts feeder of the present invention includes an end screen 31-7 for cutting off a continuous component movement path of a component movement track 33 to form a discontinuous section, A track separator 90 for dropping the component 1000 in a poorly aligned state onto the central portion of the cylindrical supply cylinder 30 with the size of the attraction force according to the change in vacuum pressure intensity in a state of being in close contact with the front surface or the rear surface of the cylinder 1000 The component 1000 in a poorly aligned state is removed before being discharged, and as a result, a defective component supply that can lead to the interruption of the operation of the electronic component production line, the injection operation line, or the continuous assembly operation line is prevented .

Description

Variable Suction Force Type Parts Feeder

The present invention relates to a part feeder, and more particularly, to a variable adsorption force part feeder capable of supplying only a normal part by removing a defective part from a component movement track of a cylindrical supply cylinder due to a difference in attraction force.

In general, a parts feeder is an electronic component production line that needs to continuously supply parts having the same alignment state by automatically feeding and sorting randomly mixed parts on the front side or the back side, Injection work lines, continuous assembly work lines, and the like.

For this purpose, the part feeder is a component moving track that forms a moving path of the component, and is constituted by a cylindrical feed cylinder for aligning parts in the same state, a vibrator for applying a proper vibration intensity to the cylindrical feed cylinder, Level and amplitude), a guide connected to the outlet of the cylindrical feed cylinder to sequentially discharge the components arranged in the same state, and a component feeder connected to the inlet of the cylindrical feed cylinder to supply the components.

Therefore, when the parts feeder is operated, a vibrator driven by a controller controls the cylindrical supply cylinder to vibrate, and the individual components are subjected to vibrations during movement along the component movement track of the cylindrical supply cylinder, (A typical component of the parts feeder), and the guide ejects the culled component from the cylindrical supply canister to the same aligned state. As a result, the parts feeder provides the convenience of making the randomly mixed parts into the same alignment state without the manual operation of the operator. Such a component feeding function prevents unnecessary workflow and improves the work efficiency, It can contribute greatly to automation of unmanned operation.

Korean Patent Laid-Open Publication No. 10-2001-0009649 (February 5, 2001)

However, since the parts feeder is composed of only the vibrations applied to the cylindrical supply cylinder after the alignment movement of the parts and the discharge operation after the alignment, the front and back sides of the parts are likely to be reversed in the component movement track before exiting from the cylindrical supply cylinder I can not help it.

Particularly, some defective parts, which can not be included in the continuous supply of parts through the parts feeder, lead to the interruption of the operation of the electronic parts production line, the injection operation line or the continuous assembly operation line, .

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a track separating apparatus and a track separating apparatus in which a track separator occupies a predetermined section on a component moving track of an aligned component, In addition, defective parts removed by air jet are removed by free fall by gravity, thereby preventing the supply of defective parts which may lead to interruption of operations of electronic parts production line, injection work line or continuous assembly work line. It is the purpose of the provision of.

In order to accomplish the above object, the variable-attraction force type parts feeder of the present invention is characterized in that a front and rear parts of a part moving along a component moving track by the applied vibration are aligned on one side, A cylindrical feed cylinder for discharging to the outside; An end screen which forms a discontinuous section by cutting off a continuous component movement path of the component moving track; The endless segment is connected to the part movement track, the part is held by the attraction force of vacuum pressure applied to the front surface or the rear surface of the aligned part, A track selector for dropping the defective part under gravity onto the center of the cylindrical feed cylinder; Is further included.

The end screen is formed at a position directly connected to a component discharge port formed in the component transfer track to discharge the component to the outside. The end screen may be formed as a stepped cut surface with respect to the track body by cutting the component moving track, and a screw hole is formed in the cut surface so that the track separator is coupled to the end screen by the track discriminator fixing bolt. And the end screen is directly formed in the moving path of the component of the component moving track.

Wherein the track separator comprises: a guide track passing the component in close contact with the guide track; a selection track leading to the guide track and defining an end portion of the component movement track; a vacuum hole formed in the selection track to form a vacuum attraction force; An air hole through which the air is injected, and a track separator fixing bolt for mounting the track separator on the track body of the cylindrical supply cylinder.

Wherein the track discriminator further comprises a detection sensor for detecting a state of a part passing through the selection track, wherein a detection signal of the detection sensor is used for supplying and stopping the vacuum and the air, the vacuum is supplied to a vacuum pump, The air is supplied to an air compressor, and the vacuum pump and the air compressor are controlled by a controller that recognizes a detection signal of the detection sensor.

The open space of the cylindrical supply cylinder is covered with a protective cover, and the protective cover is made of an untreated material which is free from brittleness or static electricity. The cylindrical supply cylinder is further provided with a pocket at the end of the component moving track, and a vacuum pressure is supplied to the pocket, and the vacuum pressure prevents the component from overlapping with a vacuum suction force.

The part feeder of the present invention is a track sorter provided on a part moving track of a cylindrical feeder to automatically remove defective alignment parts or parts inverted from the front and back sides during part alignment, In addition, the quality of aligned parts is greatly improved.

In addition, the parts feeder of the present invention is capable of improving the performance of the parts feeder by only removing low-cost vacuum pumps by implementing the removal of defective alignment parts and parts with the front and back sides inverted due to the gravity action, There is almost no change or structural change.

In addition, since the track feeder of the present invention is provided with the track separator in a detachable manner, it is possible to work on various kinds of parts with one piece feeder, and the useability of the parts feeder is greatly expanded.

Further, the parts feeder of the present invention has an effect of preventing a work interruption phenomenon leading to a decrease in productivity of an electronic component production line, an injection operation line, or a continuous assembly work line by supplying only normal parts under continuous supply of parts.

FIG. 2 is a detailed configuration of a protective cover according to the present invention, and FIG. 3 is a detailed configuration diagram of a track separator attached to and detached from a cylindrical supply cylinder according to the present invention. FIG. FIG. 5 is an operation example of a cylindrical advanced passing track discriminator and a detection sensor according to the present invention, FIG. 6 is a view showing an operation example of the present invention Fig. 7 is a detailed configuration of a pocket according to the present invention. Fig. 7 is a detailed configuration of a pocket according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention. The present invention is not limited to these embodiments.

Fig. 1 shows a detailed configuration of a variable adsorption force parts feeder according to the present embodiment.

1, the parts feeder 1 includes a frame 10, a vibrator 20, a cylindrical supply cylinder 30, a protective cover 30-1, a fixing block 40, a component discharge guide 50 , And a track selector 90).

Specifically, the frame 10 is a frame of the parts feeder 1 and has a structure for mounting the parts feeder 1. The vibrator 20 is mounted on the frame 10 to generate vibration, and is configured to vibrate by the restoring force of the electromagnet and the leaf spring. The cylindrical supply cylinder 30 is vibrated by the vibrating force applied by the vibrator 20 in the state of being installed on the frame 10 to move the component 1000 along the component moving track 33 of the helical moving path structure, 1000) to the alignment state. The fixing block 40 attaches and detaches the cylindrical supply cylinder 30 to the frame 10. For this, the fixing block 40 is screwed to the frame 10 using bolts in a state where the fixing block 40 is inserted into a fixed block groove that is waved at an arbitrary position in a circular circumference of the cylindrical supply cylinder 30. The part discharge guide 50 guides the aligned component 1000 discharged from the component moving track 33 and maintains the aligned state of the component 1000 and supplies it to the operation line or the like. The component discharge guide 50 is detached and attached to the component discharge port 31-3 formed in the track body 31 of the cylindrical supply cylinder 30 and positioned at the end of the component transfer track 33. [

In the present embodiment, the frame 10, the vibrator 20, the cylindrical supply cylinder 30, the component transfer track 33, the fixing block 40, It is a component of the FitzPader. For example, it may be a component of a parts feeder and a controller of the prior art of the present invention as illustrated in Patent Document 10-2001-0009649 (Feb. 5, 2001).

On the other hand, Fig. 2 shows a detailed structure of the protective cover 30-1.

As shown in the figure, the protective cover 30-1 is made of an uninterrupted material which is not affected by brittleness or static electricity. When the parts feeder is operated, the influence of the wind caused by the wind- It is prevented from being transmitted to the component moving track 33 of the component 30 to block the component 1000 being aligned through the component moving track 33. This is because the component 1000, In order to prevent extremely light parts from being affected by the surrounding environment.

To this end, the protective cover 30-1 is formed of a cover plate 30-1A in the form of a circular plate in which a central hole 30-1B is punched in the center so as to fit the boss, the shaft or the synchronizer, 30-1A are provided with auxiliary holes 30-1C having a diameter smaller than that of the central holes 30-1B with body portions spaced apart from the central holes 30-1B, Thereby forming a portion 30-1D. The auxiliary hole 30-1C prevents an internal pressure rise of the cylindrical supply cylinder 30 covered with the protective cover 30-1 and the side cutout 30-1D prevents the protective cover 30- 1) It facilitates handling and detachment.

3 shows the detailed configuration of the cylindrical feed-through track discriminator. As shown in the figure, the track discriminator 90 includes a guide track 91, a discriminating track 93, first and second vacuum holes 93-1 and 93-2, an air hole 93-3, A fixing bolt 97, a vacuum pump 90-1, an air compressor 90-2, and a detection sensor 100. [

Specifically, the guide track 91 extends the component movement track 33 at the same inclination angle b as the component movement track 33 so as to form the end portion of the component movement track 33 from which the aligned component 1000 is discharged give. The selection track 93 is connected to the guide track 91 and is connected to the end of the component movement track 33 at the same inclination angle b as the component movement track 33 so that component alignment by vacuum attraction force and defective component removal by air injection are performed. To form a site. The first and second vacuum holes 93-1 and 93-2 are punched in the selection track 93 to hold a component passing through the selection track 93 by a vacuum attraction force. Defective parts that are pierced at the end portions of the tracks 93 and pass the sorting track 93 or parts in a poorly aligned state are removed by air jetting. The track discriminating device fixing bolt 97 is fastened to a track separator screw hole 95 opened in a guide track 91 so as to attach and detach the track discriminating device 90 to the track body 31 of the cylindrical feed cylinder 30. The vacuum pump 90-1 is controlled by a controller of the parts feeder 1 to provide vacuum pressure to the first and second vacuum holes 93-1 and 93-2. The air compressor 90-2 is controlled by the controller of the parts feeder 1 and provides air to be jetted through the air hole 93-3. The detection sensor 100 can detect the defective part passing through the selection track 93 or the parts in a poorly aligned state so that the vacuum pump 90-1 and the air compressor 90-2 can be controlled on and off by the controller . For this purpose, the detection sensor 100 may be an infrared ray, an ultrasonic wave or a camera which recognizes the shape of the component. The controller is the same as the controller that controls the operation of the parts feeder 1 by controlling the vacuum pump 90-1 and the air compressor 90-2 on and off with the detection signal of the detection sensor 100. [

In terms of layout, the track separator 90 is provided at a position adjacent to the component discharge guide 50. For example, in the track body 31 of the cylindrical supply cylinder 30, an end screen 31-7 is formed at a position where the component outlet 31-3 starts, and the end screen 31-7, Is provided to a portion where the track separator 90 is detached and attached. Therefore, the end screening tool 31-7 is formed with a screw hole into which the track selector fixing bolt 97 is screwed. In addition, the end selection tool 31-7 may have a structure in which the component transfer track 33 is cut to form a component discharge port 31-3 and a stepped cut surface.

4 and 5 illustrate operation states of the cylindrical feed cylinder 30 and the track discriminator 90 when the feed feeder according to the present embodiment is operated.

4, the cylindrical feed cylinder 30 is shaken by the vibration intensity applied by the vibrator 20 which operates together when the feed feeder is operated, and the vibration of the cylindrical feed cylinder 30 is transmitted to the track body 31, Thereby moving the part 1000 gathered at the center of the component moving track 33 along the spiral path of the component moving track 33. Particularly, the spiral path of the component movement track 33 forms a contact surface change period in which the circular component 1000 is erected and laid down again through the entire section to the component discharge port 31-3 at the final end. For example, the section A illustrates a spiral movement path of the component movement track 33 in which the component 1000 is moved in close contact with the component 1000 in a standing state, and the section D is a state in which the component 1000 is closely contacted, The spiral movement path of the component movement track 33 which is discharged in the state shown in Fig.

The change in the contact surface of the component moving track 33 is a typical configuration and operation of the component parts 1 for vibrating the component 1000 to make the parts 1000 in an aligned state, and thus a detailed description thereof will be omitted. However, since the cylindrical feeder 30 is provided with the track discriminator 90 in the section D of the component moving track 33, the component 1000 which has been switched to the same alignment state moves out of the component outlet 31-3, The defective part can be removed before entering the guide 50. [

The state in which the flat front surface 1001 of the part 1000 is positioned downward is defined as the steady state component 1000A and the state in which the rim rear edge 1002 is positioned downward is defined as the defective state component 1000B, . The steady state component 1000A or the defective state component 1000B reaches the section D and enters the track discriminator 90. During the passage through the track discriminator 90 in the section D, It is assumed that it is in a state of receiving a suction force by a vacuum pressure. At this time, the strength of the vacuum pressure is formed in accordance with the weight and vibration intensity of the component 1000, so that the steady state component 1000A can be moved without being detached from the track discriminator 90 by the attraction force. The intensity of such vacuum pressure is defined as sufficiently strong vacuum pressure intensity.

Fig. 5 (A) shows the state of interaction between the steady state component 1000A and the track discriminator 90. Fig. As shown in the figure, the track discriminator 90 operates to apply vacuum pressure to the first and second vacuum holes 93-1 and 93-2 by operating the vacuum pump 90-1, And the steady state component 1000A positioned on the guide track 91 is in a state of being attracted by the vacuum pressure of the first and second vacuum holes 93-1 and 93-2. Then, the steady state component 1000A is affected by the sufficiently strong vacuum pressure through the first and second vacuum holes 93-1 and 93-2 with the structure of the flat front face 1001, Maintains the magnitude of the attraction force formed between the front surface 1001 of the steady-state part 1000A and the selection track 93. As a result, the steady state component 1000A can overcome the vibration applied with a sufficient magnitude of attraction force and can be discharged to the part discharge guide 50 through the sorting track 93. In this case, the detection sensor 100 does not detect a defective part or an alignment defective part for the part 1000 passing the discriminating track 93, so that the controller continues to control the vacuum pump 90-1, The compressor 90-2 is kept in the OFF state. Therefore, no air is injected through the air hole 93-3 connected to the air compressor 90-2.

On the other hand, FIG. 5 (B) shows the state of interaction between the defective-state component 1000B and the track discriminator 90 and the detection sensor 100. As shown in the figure, a defective part or an alignment defective part passing through the selection track 93 is detected by the detection sensor 100 as a defective part 1000B, and the controller recognizes the detection signal of the detection sensor 100 Simultaneously generates an air compressor on signal for activating the air compressor 90-2 at the same time as a vacuum pump off signal for stopping the operation of the vacuum pump 90-1. Then, the first and second vacuum holes 93-1 and 93-2 no longer form a vacuum attraction force, whereas the air hole 93-3 is formed in such a manner that the injection of air supplied from the air compressor 90-2 . As a result, the defective-state component 1000B is separated from the selection track 93 by the air injection pressure injected from the air hole 93-3, and is guided by the inclined angle b of the selection track 93 under gravity to the cylindrical supply cylinder 30 As shown in FIG. At this time, when the air injection pressure of the air compressor 90-2 is appropriately adjusted, the vacuum pump 90-1 can be also operated when the air compressor 90-2 is operated.

Therefore, the parts feeder is provided with the track discriminator 90 on the path of the component moving track 33 of the cylindrical feed cylinder 30, and the track discriminator 90 is capable of discharging the component 1000A with vacuum suction force The defective state parts 1000B can be collected at the center of the cylindrical supply cylinder 30 without discharging the defective state parts 1000B by the air injection pressure.

6 and 7 show an example in which the variable friction force part feeder according to the present embodiment is configured together with the pocket for the part discharge guide.

6, the parts feeder 1 includes a frame 10, a vibrator 20, a cylindrical supply cylinder 30, a protective cover 30-1, a fixed block 40, and a track discriminator 90 And a pocket 50-1 in which the aligned parts in the track discriminator 90 are loaded by themselves. In this case, the frame 10, the vibrator 20, the cylindrical supply cylinder 30, the protective cover 30-1, the fixed block 40 and the track discriminator 90 are shown in Figs. 1 to 5 Are the same as those described in Fig. However, the pocket 50-1 replaces the component ejection guide 50 to load the aligned component in the track separator 90 by itself. Particularly, the pocket 50-1 is suitable for continuously discharging mini-sized and minute-weight parts such as a camera component of a smart phone in an aligned state.

Referring to Figs. 7A and 7B, the pocket 50-1 has a rectangular pillar-shaped pocket body 50-1A, and the pocket body 50-1A, (50-1A) is constituted by a stepped guide step portion 50-1B.

In addition, the pocket 50-1 is connected to the vacuum pressure so that the alignment state of the components passing through the guide step 50-1B is maintained at the vacuum suction force, and the vacuum pressure is supplied to the guide stepped portions 50-1B ) So that the aligned parts 1000 descending to the guide stepped portion 50-1B can be discharged without overlapping each other with the vacuum pressure. 7 (A) shows a case of a vacuum hole 50-1C drilled in the bottom surface of the guide stepped portion 50-1B, and FIG. 7 (B) shows a case of the guide stepped portion 50-1B. And the auxiliary vacuum holes 50-1D are formed in the sidewall surfaces of the vacuum hole 50-1C. In this case, each of the vacuum hole (50-1C) and the auxiliary vacuum hole (50-1D) is connected to a vacuum pump, and the vacuum pump is connected to a controller for controlling the parts feeder (1).

Further, bolt holes or through holes are formed in the pocket body 50-1A, so that the pocket 50-1 and the cylindrical supply cylinder 30 can be easily separated from each other.

As described above, the variable attraction force type parts feeder according to the present embodiment includes a frame 10 mounted on the floor, a vibrator 20 mounted on the frame 10 to generate vibration, The cylindrical feed cylinder 30 and the cylindrical feed cylinder 30 in which the parts 1000 moved along the component moving track 33 are vibrated by the vibration intensity applied by the drive motor 20 to the alignment state, A guide 50 for releasably attaching to the cylindrical feed cylinder 30 to guide the aligned component 1000 discharged from the component moving track 33, And a track selector (90) for removing the parts (1000) in poor alignment in the track (33). Therefore, in the parts feeder, the vacuum pressure of the track discriminator 90 provided in the end screening section 31-7, which cuts the continuous component movement path of the component moving track 33 into a discontinuous section, Or the component 1000 in a state of being closely contacted with the rear surface of the cylindrical feed cylinder 30 and dropping the component with reduced attraction force on the center portion of the cylindrical feed cylinder 30 by vibration and gravity, (1000) is removed before discharging, and as a result, the supply of defective parts, which may lead to the interruption of the production of the electronic parts production line, the injection operation line, or the continuous assembly operation line, is fundamentally prevented.

1: parts feeder 10: frame
20: vibrator 30: cylindrical feed cylinder
30-1: Protective cover 30-1A: Cover body
30-1B: center hole 30-1C: auxiliary hole
30-1D: side incision part
31: Track body 31-3: Component outlet
31-7: End screening hole 31-7a: Fixing hole
33: part moving track 40: fixed block
50: part discharge guide 50-1: pocket
50-1A: Pocket body 50-1B: Guide step part
50-1C: vacuum hole 50-1D: auxiliary vacuum hole
90: Track selector
90-1: Vacuum pump 90-2: Air compressor
91: guide track 93: selection track
93-1, 93-2: first and second vacuum holes 93-3: air hole
95: Track sorter screw hole 97: Track sorter fixing bolt
100: Detection sensor
1000: Part 1001: Front surface
1002: Rear side 1000A: Steady state parts
1000B: Bad condition parts

Claims

A part feeder including a cylindrical feed cylinder which is arranged on one side of a front and rear surface of a component moving along a component moving track by an applied vibration and discharges a component aligned on one side of a front surface or a rear surface to the outside,
An end screen which forms a discontinuous section by cutting off a continuous component movement path of the component moving track;
The endless segment is connected to the part movement track, the part is held by the attraction force of vacuum pressure applied to the front surface or the rear surface of the aligned part, A track selector for dropping the defective part under gravity onto the center of the cylindrical feed cylinder;
Further comprising: a variable adsorption force type feeder for feeding the feed gas to the adsorbing portion.

The parts feeder according to claim 1, wherein the end screen is formed at a position directly connected to a component outlet formed on the component moving track to discharge the component to the outside.

The part feeder according to claim 1, wherein the end screen is formed as a stepped cut surface with respect to the track body by cutting the component moving track, and the track separator is coupled to the cut surface.

4. The part feeder according to claim 3, wherein the end screen is directly formed on the movement path of the component of the component movement track.

4. The track separator of claim 3, wherein the track discriminator comprises: a guide track passing the component in close contact with the track; a selection track extending from the guide track to form an end portion of the component movement track; a vacuum hole formed in the selection track, An air hole through which air is blown in the selection track, and a track discriminating device fixing bolt for attaching and detaching the track separator to a track body of the cylindrical supply cylinder.

The part feeder according to claim 5, wherein the vacuum hole is located behind the air hole.

The apparatus according to claim 5, wherein the track discriminator further comprises a detection sensor for detecting a state of a component passing through the selection track, wherein a detection signal of the detection sensor is used for supplying and stopping the vacuum and the air

8. The apparatus according to claim 7, wherein the vacuum is supplied to a vacuum pump, the air is supplied to an air compressor, and the vacuum pump and the air compressor are controlled by a controller for recognizing a detection signal of the detection sensor Type parts feeder.

The variable friction type parts feeder according to claim 1, wherein the open space of the cylindrical supply cylinder is covered with a protective cover, and the protective cover is made of an untreated material which is free from brittleness or static electricity.

2. The variable friction type parts feeder according to claim 1, wherein the cylindrical supply cylinder is further provided with a pocket at an end of the component moving track, and the pocket discharges the component through the tilt discriminating plate.

11. The variable friction type parts feeder according to claim 10, wherein a vacuum pressure is supplied to the pocket, and the vacuum pressure is prevented from overlapping with the vacuum adsorption force.