JP4946082B2 - Parts supply device - Google Patents

Description

  The present invention relates to a component supply apparatus capable of transferring a component in a normal posture by vibration.

  2. Description of the Related Art Conventionally, a parts feeder is well known as one of parts supply apparatuses that align parts by supplying vibration to the parts and supply the parts. This parts feeder can adjust the posture of the part by applying vibration to the part and supply it to the next process.

Patent Document 1 discloses a vibration-type component supply device that can ensure a sufficient component supply capability even if there are many components with poor front-rear orientation. In the vibration type component supply device described in Patent Document 1, the tip of a component to be transferred is detected by a sensor, and when the characteristic portion is not detected, it is determined to be backward, and air is ejected from the nozzle. The front and rear directions of the parts are reversed by the moment caused by the injection so that they can be aligned and supplied to the discharge end without being removed from the transfer path.
JP 2003-3000613 A

  However, in the conventional component supply apparatus, when air is ejected from the nozzle, gas is ejected radially from the nozzle, so that force is also applied to the adjacent normal posture components by the ejection of air, Attitude variation may occur.

  Moreover, in the vibration type component supply apparatus described in Patent Document 1, air is ejected only to a component in an abnormal posture, so that a determination sensor and a control system for determining the posture of the component are essential. As a result, the structure becomes complicated, and the amount of parts transferred per unit of time is limited.

  An object of the present invention is to provide a component supply device capable of uniformly adjusting the posture of a component by ejecting gas and capable of high-speed conveyance.

Means and effects for solving the problems

(1)
A component supply device according to the present invention is a component supply device that applies vibrations to a component and moves the component on a conveyance path, from a discharge port provided in the conveyance path to adjust the posture of the component to be transferred to a predetermined posture. It has an air ejection part for ejecting gas, and the air ejection part regulates the spreading direction of the gas ejected from the discharge port with a linear wall formed along the gas ejection direction, and has a predetermined posture. gas blown against the part to be transferred is not injected in a state, including a gas rectifying section where the gas portion thereof has to be injected against the parts to be transported in a state not a predetermined posture, conveying The path has a conveyance groove formed so as to include a V-shaped cross section that can support one ridge line of the component, and the discharge port of the air ejection portion is provided on one inclined surface that forms the V-shaped cross section. The gas rectifier is located upstream of the discharge port. A straightening wall having a straight wall that regulates the spread direction of the gas is formed, and the extension of the spread angle of the gas ejected from the discharge port is formed on the end surface perpendicular to one inclined surface of the component transferred in a predetermined posture. The straight wall of the rectifying path intersects with one of the slopes at an acute angle so as to be in communication with the discharge port . It is something to arrange the posture.

  In the component supply apparatus according to the present invention, the gas is ejected along the gas rectifying unit from the discharge port provided in the conveyance path by the air ejection unit, and the posture of the component to be transferred is adjusted to a predetermined posture. Specifically, the spread direction of the gas ejected from the discharge port is adjusted by the gas rectifying unit of the air ejection unit, the amount of gas ejected to the parts transferred in a predetermined posture state is reduced, The amount of gas injected to the parts transferred in a state that is not in a predetermined posture is increased.

  In this case, gas is ejected from the discharge port provided in the conveyance path of the air ejection part, and the gas is ejected to a component that is not in a predetermined posture. By injecting gas to a part of a part that is not in a predetermined posture, a rotational moment is generated in the part, and the part is rotated to be adjusted to a predetermined posture. On the other hand, for parts that have been transported in a predetermined posture, the gas ejected from the discharge port is not jetted onto the parts, so that no rotational moment is generated in the parts, and the posture of the parts is not changed. As a result, the predetermined posture of the component can be maintained. Therefore, it is not necessary to inject gas only when a part is in a predetermined posture, and even if the posture of the part is not in a predetermined posture, even if the gas is ejected individually, it is arranged in a uniform posture. Can do. As described above, since the posture of the part can be uniformly adjusted and transported without determining the posture of the part, the part transporting ability can be improved.

  In this case, one ridge line of the component is supported at the V-shaped cross-section portion of the conveying groove. Moreover, the discharge port of an air ejection part is provided in one slope. The gas rectifying part of the air ejection part is formed on the upstream side of the discharge port, and is formed so that the extension of the gas spreading angle is along the end face of the component to be transferred in a predetermined posture. As a result, the jetted gas does not hit the parts transferred in a predetermined posture, and the jetted gas hits the parts transferred in a non-predetermined state. Therefore, it is possible to correct the posture of the component that is not in the predetermined posture, and it is possible to transfer the component maintained in the predetermined posture to the next process.

  Embodiments according to the present invention will be described below. As an example of the component supply apparatus according to the present invention, a case where the apparatus is adapted to a minute component supply apparatus that conveys a minute component will be described.

(One embodiment)
1 and 2 are schematic perspective views showing an example of a micropart supply device 100 according to an embodiment of the present invention. FIG. 1 shows an upper surface of the microcomponent supply apparatus 100, and FIG.

  As shown in FIGS. 1 and 2, the microcomponent supply apparatus 100 includes a parts feeder 200, a linear feeder 300, and a stage 900.

  Further, as shown in FIG. 2, the parts feeder 200 includes a bowl-shaped transport unit 210 and a piezoelectric vibration unit 220.

  In micropart supply device 100 in the present embodiment, parts feeder 200 and linear feeder 300 are provided on stage 900. A small component carrying-in unit 311 of the linear feeder 300 is connected to the small component discharge unit 211 of the parts feeder 200. Further, the receiving path 217 of the parts feeder 200 is connected to the micro-component reflux path 317 of the linear feeder 300.

  The vibration oscillated by the piezoelectric vibration unit 220 of the parts feeder 200 is given to the bowl-shaped transport unit 210 placed on the piezoelectric vibration unit 220. In the bowl-shaped transport unit 210, a spiral minute component transport path is provided along the inner periphery of the bowl-shaped transport unit 210 (see FIG. 1). The micro component 800 (see FIG. 3) is supplied to the center bottom of the bowl-shaped transport unit 210, and the micro component 800 is transported on the spiral transport path by the vibration from the piezoelectric vibration unit 220, and linear from the micro component discharge unit 211. It is given to the minute component carrying-in part 311 of the feeder 300.

  In addition, the linear feeder 300 is provided with a piezoelectric vibration unit 302, and vibrations oscillated by the piezoelectric vibration unit 302 are applied to each conveyance path of the linear feeder 300. Thereby, the micro component supply device 100 can supply the micro component 800 to the next process of the micro component supply device 100.

  Further, when there is a minute part 800 that has not been arranged in a predetermined posture in the conveyance path of the linear feeder 300, or when trouble occurs in the next process and the minute part 800 is not conveyed to the next process side, the return member Thus, the micro component 800 is returned from the micro component recirculation path 317 to the center bottom of the bowl-shaped transport unit 210 via the receiving path 217 of the parts feeder 200.

  Next, FIG. 3 is a schematic perspective view showing an example of the shape of the micro component 800 conveyed in the present embodiment.

  As shown in FIG. 3, the micro component 800 is a rectangular parallelepiped having a length L, a height H, and a width B. The relationship between the length L, the height H, and the width B has a relationship of H <B <L. As described above, the micro component 800 is a flat micro component.

  Further, the microcomponent supply apparatus 100 often has electrodes formed on one surface of the microcomponent 800. Generally, the microcomponent 800 has a length L of about 3.2 mm to 8 mm. The width B is about 2.5 mm to 5.0 mm, and the height H is about 0.8 mm to 1.7 mm.

  Next, FIG. 4 is a side view showing details of the linear feeder 300.

  The linear feeder 300 includes a vibration isolator 301, a piezoelectric vibration unit 302, a vibration transmission unit 303, a first conveyance member 320, a second conveyance member 330, a connection member 340, a third conveyance member 350, and an air ejection unit 410 (not shown). A).

  As shown in FIG. 4, the piezoelectric vibration unit 302 is held by a plurality of vibration isolation leaf springs 380 on the vibration isolation table 301. On the upper part of the piezoelectric vibration unit 302, a vibration transmission unit 303 is held by a plurality of leaf springs 390. A first transport member 320 is fixed to the upper portion of the vibration transmission unit 303, a second transport member 330 is connected to one end side of the first transport member 320, and a connection member is connected to a side surface of the first transport member 320. 340 is added. The first conveying member 320 is provided with an air ejection part 410 (not shown). The first transport member 320 is provided with a third transport member 350 via a plurality of leaf springs 360.

  With the above configuration, the vibration oscillated by the piezoelectric vibration unit 302 is transmitted to the first transport member 320 and the second transport member 330 by the plate spring 380 and further transmitted to the third transport member 350 by the plate spring 360.

  5 and 6 are diagrams for explaining the details of the first transport member 320, the second transport member 330, the connection member 340, and the third transport member 350. FIG. FIG. 5 shows the top and FIG. 6 shows the side.

  As shown in FIGS. 5 and 6, the first transport member 320 includes a micro-component carry-in part 321, an inclined transport part 322, a transport part 323, and a uniform attitude transport groove part 324. The air ejection portion 410 is provided in the uniform conveyance groove portion 324.

  The micro-component carry-in section 321 is provided with a micro-component carry-in path 311, the inclined transport section 322 is provided with a micro-component inclined transport path 312, the transport section 323 is provided with a micro-component transport path 313, and the attitude uniform transport groove section A conveyance groove 314 is provided in 324.

  In the present embodiment, as will be described later, the conveyance groove 314 is provided in a state inclined by about 45 degrees. That is, the conveying groove 314 is formed in a state where the posture is uniformly cut from the upper surface of the conveying groove 324. Further, the air ejection unit 410 ejects gas to the conveyance groove 314. In addition, the air ejection part 410 may be provided with a single air tank in the micro component supply device 100 and receive gas supply from the air tank. For example, a gas supply from a nitrogen tank or the like provided in peripheral equipment may be used. May be configured to receive. The detailed arrangement of the conveyance groove 314 and the air ejection part 410 will be described later. Further, a conveyance path 315 is provided in the second conveyance member 330 that is linearly connected from the conveyance groove 314.

  The third transport member 350 is provided with a reflux transport path 317 so as to be parallel to the micro-part carry-in path 311, the micro-part inclined transport path 312, the micro-part transport path 313 and the transport groove 314.

Next, the posture uniform conveyance groove 324 will be described in detail with reference to the drawings. FIG. 7 is a schematic cross-sectional view for explaining a reference example of a cross-section taken along the line AA of the posture uniform conveyance groove portion 324 in FIG. 5, and FIG. It is typical sectional drawing for demonstrating the detail of the conventional conveyance part used for it.

  As shown in FIG. 7, the conveyance groove 314 of the uniform posture conveyance groove 324 has a V-shaped cross-section that can support one ridge line of the micro component 800 as a whole. This V-shaped cross-sectional shape part is formed from the surface 314a and the surface 314b. In the present embodiment, since microcomponent 800 is a rectangular parallelepiped (see FIG. 3), surface 314a and surface 314b are vertically connected to form a V-shaped cross-section.

  As shown in FIG. 7, the micro component 800 is transferred in the conveyance groove 314 formed by the surface 314 a and the surface 314 b. In the present embodiment, the state of the micro component 800 in the predetermined posture indicates the state of the micro component 800a in FIG. 7, and the state in which the micro component 800 is not in the predetermined state indicates the state of the micro component 800b in FIG. Specifically, the micro component 800a is transferred in a state where there are more regions in contact with the surface 314a than the surface 314b, and the micro component 800b is transferred in a state where there are more regions in contact with the surface 314b than in the surface 314a. ing. In other words, the micro component 800a is mainly transferred close to the surface 314a, and the micro component 800b is mainly transferred close to the surface 314b.

  Next, an air ejection portion 410 is provided on the surface 314 b side of the conveyance groove 314 of the posture uniform conveyance groove portion 324. The air ejection unit 410 includes a discharge port 411 and a gas rectifying unit 420.

  The discharge port 411 of the air ejection part 410 is provided in parallel with the surface 314b, and the gas rectification part 420 is formed from the discharge port 411 of the air ejection part 410 toward the surface 314b along the gas ejection direction. In the present embodiment, the gas rectifying unit 420 is provided perpendicular to the surface 314b and parallel to the surface 314a, and the discharge port 411 is perpendicular to the gas rectifying unit 420 and provided on the surface 314b. It is provided in parallel to.

  Further, the gas rectifying unit 420 is connected to a point Ph on the surface 314b that is distant from the intersection of the surfaces 314a and 314b (the lowermost portion of the conveying groove 314) at the height H (see FIG. 3) of one end of the micro component 800. It is formed. In the present embodiment, the height H is used, but the present invention is not limited to this. However, since the height H varies depending on the component conveying posture, another length L or width B may be used instead of the height H. Good. Moreover, the gas rectification | straightening part 420 is formed from a linear wall along the jet direction of gas. In the present embodiment, the gas rectifying unit 420 is formed by drilling or the like and thus has a semi-cylindrical shape. The shape is not limited to the semi-cylindrical shape, and may be any other shape having a linear wall, for example, a semi-square tube shape. That is, it is preferable that no wall is formed on the opposite side of the straight wall of the gas rectifying unit 420.

  In this case, as shown in FIG. 7, the gas ejected from the discharge port 411 of the air ejection unit 410 is ejected linearly along the wall of the gas rectifying unit 420 (region 430 in FIG. 7). Thereby, although gas is injected with respect to the micro component 800b, gas is not injected with respect to the micro component 800a.

  On the other hand, as shown in FIG. 8, in the case of the micro component 800 that is transported in the transport unit 324L, the surface 314b is used for both the micro component 800a that is in a predetermined posture and the micro component 800b that is not in a predetermined posture. Since the gas ejected from the discharge port 411L of the air ejection part 410L provided in is ejected radially with a divergence angle (region 430L in FIG. 8), not only the micro component 800b but also the micro component 800a Even gas will be injected. As a result, since the gas is also injected to the micro component 800a that is transferred in a predetermined posture, the micro component 800a in the predetermined posture may change to a state that is not in the predetermined posture.

  As described above, the gas is ejected from the discharge port 411 provided in the uniform conveying groove 324 of the air ejection part 410, and the gas is ejected to the micro component 800b that is not in the predetermined attitude. By injecting gas into a part of the micro component 800b that is not in a predetermined posture, a rotational moment is generated in the micro component 800b, and the micro component 800b rotates to be adjusted to the posture of the component 800a in a predetermined posture. . On the other hand, since the gas ejected from the discharge port 411 is not injected into the micro component 800a with respect to the micro component 800a conveyed in a predetermined posture, no rotational moment is generated in the micro component 800a, and the micro component The posture of 800a is not changed. As a result, the predetermined posture of the micro component 800a can be maintained. Therefore, the gas is not injected only when the micro component 800 is in the posture of the micro component 800b, and the micro component 800 is applied to each micro component 800 regardless of the posture of the micro component 800a or 800b. On the other hand, since it is only necessary to eject gas, the posture of the micro component 800 can be uniformly adjusted and transported without determining the posture of the micro component 800, so that the component transport capability can be improved.

(Real施例)
FIG. 9 is a schematic cross-sectional view for explaining an example of the posture uniform conveyance groove 324 of FIG.

  The structure of the posture uniform conveyance groove 324 shown in FIG. 9 is different from the structure of the posture uniform conveyance groove 324 shown in FIG. 7 in the following points.

  As shown in FIG. 9, the discharge port 411a of the air ejection part 410a is provided at a predetermined angle α with respect to the surface 314b of the conveying groove 314. Further, the gas rectifying unit 420a is formed on the upstream side of the discharge port 411a. Here, as for the predetermined angle α, the extension of the spread angle (region 430) of the gas ejected from the gas rectifying unit 420a and the discharge port 411a is ejected along the end of the micro component 800a in the transport groove 314. Provided at an angle.

  With this configuration, the gas is ejected from the discharge port 411a provided in the attitude uniform conveyance groove 324a of the air ejection part 410a, and the gas is ejected to the micro component 800b that is not in the predetermined attitude. By injecting gas into a part of the micro component 800b that is not in a predetermined posture, a rotational moment is generated in the micro component 800b, and the micro component 800b rotates to be adjusted to the posture of the component 800a in a predetermined posture. . On the other hand, since the gas ejected from the discharge port 411a is not sprayed to the micro component 800a with respect to the micro component 800a conveyed in a predetermined posture, no rotational moment is generated in the micro component 800a, and the micro component The posture of 800a is not changed. As a result, the predetermined posture of the micro component 800a can be maintained.

  Therefore, the gas is not injected only when the micro component 800 is in the posture of the micro component 800b, and the micro component 800 is applied to each micro component 800 regardless of the posture of the micro component 800a or 800b. On the other hand, since it is only necessary to eject gas, the posture of the micro component 800 can be uniformly adjusted and transported without determining the posture of the micro component 800, so that the component transport capability can be improved.

  As described above, the gas is ejected from the discharge ports 411 and 411a provided in the uniform conveying groove portions 324 and 324a of the air ejection portion 410b, and the gas is ejected to the micro component 800b that is not in the predetermined posture. By injecting gas into a part of the micro component 800b that is not in a predetermined posture, a rotational moment is generated in the micro component 800b, and the micro component 800b rotates to be adjusted to the posture of the component 800a in a predetermined posture. . On the other hand, since the gas ejected from the discharge ports 411 and 411a is not jetted to the micro component 800a with respect to the micro component 800a conveyed in a predetermined posture, no rotational moment is generated in the micro component 800a. The posture of the micro component 800a is not changed. As a result, the predetermined posture of the micro component 800a can be maintained. Therefore, the gas is not injected only when the micro component 800 is in the posture of the micro component 800b, and the gas is individually supplied to the individual regardless of the posture of the micro component 800a or 800b. Since it suffices to eject, the posture of the micro component 800a can be uniformly adjusted and transported without determining the posture of the micro component 800a, so that the component transport capability can be improved.

  In the above embodiment, the micro component 800 corresponds to the component, and the micro component carry-in portion 321, the inclined transport portion 322, the transport portion 323, and the posture uniform transport groove portion 324 of the first transport member 320 correspond to the transport path. The linear feeder 300 corresponds to a component supply device, the discharge ports 411 and 411a correspond to discharge ports, the air ejection portions 410 and 410a correspond to air ejection portions, and the micro component 800a is transferred in a predetermined posture. The gas rectifier 420, 420a has a straight portion on the upstream side of the gas rectifier, the wall having the straight portion, and the discharge port. The conveyance groove 314 corresponds to the conveyance groove and the V-shaped cross section, the surface 314b corresponds to one inclined surface, the surface 314a corresponds to the other inclined surface, and the region 430 Extension corresponds to extension of the spread angle of the gas blown.

  Although the present invention has been described in the above-described preferred embodiment, the present invention is not limited thereto. It will be understood that various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, in this embodiment, although the effect | action and effect by the structure of this invention are described, these effect | actions and effects are examples and do not limit this invention.

The typical perspective view which shows an example of the micro component supply apparatus which concerns on one embodiment which concerns on this invention The typical perspective view which shows an example of the micro component supply apparatus which concerns on one embodiment which concerns on this invention Schematic perspective view showing an example of the shape of a micropart conveyed in the present embodiment Side view showing details of linear feeder The figure for demonstrating the detail of a 1st conveying member, a 2nd conveying member, a connection member, and a 3rd conveying member. The figure for demonstrating the detail of a 1st conveying member, a 2nd conveying member, a connection member, and a 3rd conveying member. Typical sectional drawing for demonstrating the reference example of the AA line cross section of the attitude | position uniform conveyance groove part of FIG. Typical sectional drawing for demonstrating the detail of the conventional conveyance part used in order to clarify the difference with the attitude | position uniform conveyance part of FIG. Schematic sectional view for explaining an embodiment of the A-A line cross-sectional attitude uniform conveying groove 5

Explanation of symbols

800 Micro parts 321 Micro parts carry-in section 320 First transport member 322 Inclined transport section 323 Transport section 324 Attitude uniform transport groove section 300 Linear feeder 411, 411a Discharge port 410, 410a Air ejection section 800a Parts transported in a predetermined posture 800b Parts 420, 420a, gas rectification unit 314, transport groove 314b surface, which are transferred in a state not in a predetermined posture
314a surface 430 region

Claims (1)

A component supply device that applies vibration to a component and moves it on a conveyance path,
In order to adjust the posture of the parts to be transferred to a predetermined posture, an air ejection portion that ejects gas from an ejection port provided in the conveyance path,
The air ejection part is
The spreading direction of the gas ejected from the discharge port is regulated by a linear wall formed along the gas ejection direction, and the gas ejected to the parts transferred in the predetermined posture state Including a gas rectifying unit in which the gas is injected to a part thereof with respect to a component which is not injected and the gas is not transferred in the predetermined posture;
The conveyance path has a conveyance groove formed so as to include a V-shaped cross-sectional portion capable of supporting one ridge line of the component,
The discharge port of the air ejection part is provided on one inclined surface that forms the V-shaped cross section,
The gas rectifier is
A rectifying path having a linear wall that regulates the spreading direction of the gas is formed on the upstream side of the discharge port, and the extension of the spread angle of the gas ejected from the discharge port is transferred in a predetermined posture. The straight wall of the rectifying passage intersects the one inclined surface at an acute angle so as to be along the end surface perpendicular to the one inclined surface in the component, and communicates with the discharge port.
A component supply apparatus characterized in that a component transferred in a state not in the predetermined posture is adjusted to a predetermined posture by jetting the gas to a part thereof.

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