JP5082270B2 - Parts supply device - Google Patents

Description

  The present invention relates to a component supply apparatus capable of transferring components by vibration.

  2. Description of the Related Art Conventionally, a parts feeder or the like (part transporting apparatus) is well known as one of parts supplying 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 vibratory component transport device that can reduce the number of vibration mechanisms installed in the vibration component transport device and can increase the degree of freedom in setting the transport speed and transport direction of the component. Yes.

  In the vibration type component conveying apparatus described in Patent Document 1, the vibrating body provided with the conveying path is directed to the upper vibrating body of the linear feeder in a direction parallel to the vibration direction of the upper vibrating body in a horizontal plane. Supporting with two leaf springs arranged at equal inclination angles in the vertical plane, providing its own excitation mechanism using the vibration propagated from the upper vibrator through the leaf spring In addition, the degree of freedom in setting the conveying speed and conveying direction of the parts is given, and the parts can be conveyed along the conveying path provided in the vibrating body.

  Patent Document 2 discloses a linear feeder with a return chute that allows parts fed by a single linear feeder to be simultaneously fed in the front-rear direction by a single drive unit.

In the rectilinear feeder with a return chute described in Patent Document 2, the side plate fixed to the drive unit mounting base of the conventional rectilinear feeder uses a motion counter generated by the forward motion leaf spring to move the backward leaf spring. Parts that are fed by one linear feeder can be fed simultaneously in the front-rear direction by one drive unit.
JP 2005-35790 A Japanese Utility Model Publication No. 6-53534

  However, in both the vibratory component conveying device described in Patent Document 1 and the linear feeder with return chute described in Patent Document 2, it is necessary to incline the support plate spring, which causes a pitching phenomenon in which the trough swings in the front-rear direction. In this case, the conveyed product becomes unstable. Further, the amplitude in the vertical direction easily changes depending on the frequency, spring strength, trough weight, weight balance, etc., and it is difficult to obtain an arbitrary amplitude.

  The objective of this invention is providing the components supply apparatus which can implement | achieve arbitrary amplitude easily and can implement | achieve the stable conveyance of components.

Means and effects for solving the problems

(1)
A component supply device according to the present invention is a component supply device including a linear conveyance path that linearly transfers a component supplied into a conveyance path by generating vibration in the conveyance path, and is disposed in a lower part. A base part, a vibration part that is arranged above the base part and generates vibrations, and a fixed part that is provided below the vibration part and above the base part. An anti-vibration member that is attached to the vibration part and the base part and attenuates vibration transmitted from the vibration part to the base part, and attached to the vibration part and the fixing part, and is elastically deformed to A drive member that generates vibrations having opposite phases to the vibration unit, a reflux conveyance path that recirculates components conveyed by the straight conveyance path from the downstream to the upstream side, and a horizontal vibration from the vibration unit to the reflux conveyance path a horizontal transfer member for transferring, fixing portion It is obtained by a vertical transmission member for transmitting the vibration in the vertical direction et reflux conveying path.

  In the component supply apparatus according to the present invention, the fixed portion and the vibration portion provided above the base portion impart vibration to the linear conveyance path by the vibration isolation member and the drive member, and convey components on the linear conveyance path. In addition, vibrations are transmitted to the reflux conveyance path for refluxing the parts transferred by the straight conveyance path by the horizontal direction transmission member and the vertical direction transmission member.

  In this case, since the horizontal vibration from the horizontal transmission member and the vertical vibration from the vertical transmission member are stably supplied to the reflux conveyance path, the reflux conveyance path can be stably vibrated. That is, even when the pitching phenomenon occurs in the component supply apparatus, the conveyed product can be stably conveyed. Furthermore, it is possible to easily change the vibration frequency, the spring constant, etc., and to easily obtain an arbitrary amplitude.

(2)
Horizontal transmission member, the direction out that extending the exciting units preferably provided along Migihitsuji a vertical plane.

  In this case, it is possible to reliably apply horizontal vibration from the vibration unit to the reflux conveyance path via the horizontal transmission member.

(3)
Vertical transmission member, it is preferred that the extending direction is provided along Migihitsuji horizontal surface to the fixing unit.

  In this case, vertical vibrations can be reliably applied from the fixed portion to the reflux conveyance path via the vertical direction transmission member.

  Embodiments of a component supply apparatus according to the present invention will be described below. In the following embodiment, a linear parts feeder 300 will be described as an example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 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 minute components 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 micropart supply device 100 includes a parts feeder 200, a linear part 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 part feeder 300 are provided on stage 900. To the minute parts discharge unit 211 of the parts feeder 200, the minute parts carry-in part 311 of the linear type parts feeder 300 is connected. Further, a receiving path 217 of the parts feeder 200 is connected to the reflux conveyance path 317 of the linear type parts 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. 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 micro-component carry-in part 311 of the mold part feeder 300.

  Further, as will be described later, the linear parts feeder 300 is provided with one vibrator 333 mainly including a first conveying member 320, a piezoelectric vibrator 303, and a weight 302, and the vibrator 333 is provided. The vibration oscillated by is applied to each conveyance path of the linear part 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 first conveying member 320 of the linear type part feeder 300, or a trouble occurs in the next process so that the minute part 800 is not conveyed to the next process side. In this case, the micro component 800 is returned from the micro component recirculation path 317 to the center bottom of the bowl-shaped transport unit 210 through the receiving path 217 of the parts feeder 200 by the third transport member 350. This detailed configuration will be described later.

  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 schematic side view showing a partial internal structure of the linear part feeder 300 according to the present embodiment, and FIG. 5 is a side view of the linear part feeder 300 of FIG.

  The linear type parts feeder 300 mainly includes a vibration isolator 301, a weight part (counter weight) 302, a piezoelectric vibration part 303, a first conveying member (linear conveying member) 320, and a second conveying member (linear conveying member). 330, a connection member 340, a third transport member (reflux transport member) 350, an elastic plate member 360, a fixed plate 370, and a holding portion 380.

  As shown in FIG. 4, the piezoelectric vibration portion 303 is held by a plurality of vibration isolation leaf springs 380 on the vibration isolation table 301. On the upper portion of the weight portion 302, the piezoelectric vibration portion 303 is held by a plurality of driving leaf springs 390. The driving leaf spring 390 is provided in a state inclined from the vertical direction.

  Also, an L-shaped elastic member 410 having a bent flat plate is provided inside the weight portion 302 and the piezoelectric vibration portion 303 in FIG. One end side of the elastic member 410 is fixed to the piezoelectric vibration portion 303, and the other end side is fixed to the weight portion 302.

  Further, piezoelectric elements 411 are disposed on both surfaces of the elastic member 410. The spring constant composed of the elastic member 410 and the piezoelectric element 411 is appropriately selected according to the condition of an arbitrary resonance frequency determined by the weight and size of the parts to be transported, the weight of the transport path 305, and the like.

  Specifically, the piezoelectric element 411 is obtained by attaching a piezoelectric ceramic having a positive polarity polarization potential on one surface of the elastic member 410 and applying a negative polarity polarization on the other surface of the elastic member 410. Affix an electric potential. Thereby, the bimorph structure by the piezoelectric element 411 is formed on the front and back surfaces of the elastic member 410. By applying an electric charge to the piezoelectric element 411, vibration is generated, and the piezoelectric vibrating portion 303 and the weight portion 302 vibrate in opposite directions. Note that the weight portion 302 has a mass formed according to the weight of the piezoelectric vibration portion 303, the first transport member 320, and the like.

  As shown in FIG. 4, the first conveying member 320 is fixed to the upper portion of the piezoelectric vibration unit 303, and the second conveying member 330 is connected to one end side (downstream side) of the first conveying member 320. A third transport member 350 is provided on the side surface of the first transport member 320.

  As shown in FIGS. 4 and 5, the linear part feeder 300 mainly includes a vibration isolation base 301, a weight part (counterweight) 302, a piezoelectric vibration part 303, and first and second transport members 320 and 330 in this order. It is a laminated one. Further, as shown in FIG. 5, a fixed plate 370 formed of a plate-like member and having a protrusion 375 is fixed to the weight portion 302.

Next, as shown in FIG. 4, the piezoelectric vibrating portion 303 is provided with a connecting member 340 provided with the horizontal direction as the longitudinal direction. The connection member 340 is fixed to the piezoelectric vibration unit 303 via a rectangular notch provided in the fixed plate 370. Further, in the vertical plane of the conveyor upstream and downstream of the microcomponents 800 of connecting member 340 in the horizontal direction longitudinal shape is formed, one end of each horizontal direction MukaiDen our member 360a is fixed by a bolt B, the horizontal The other end side of the vibration transmitting member 360a is fixed to a vertical surface formed on the third conveying member 350 by a bolt B.

  Accordingly, the horizontal vibration in the piezoelectric vibration unit 303 is applied to the third transport member 350 via the connection member 340.

On the other hand, one end of the vertical vibration transmitting member 360b at the protrusion 375 formed in the fixed plate 370 in FIG. 4 is fixed by a bolt B, the third conveyance member the other end of the vertical way MukaiDen our member 360b is by means of a bolt B It is fixed to a horizontal plane formed at 350.

Thereby, the vibration in the vertical direction in the weight portion 302 is given to the third transport member 350 via the protrusion 375 .

  Subsequently, a conveyance state of the micro component 800 in the third conveyance member 350 of FIGS. 4 and 5 will be described. FIG. 6 is a view showing the movement of the micro component 800 in the third conveying member 350 of the linear part feeder 300 of FIGS. 4 and 5.

  As shown in FIG. 6, the micro components 800 are sequentially conveyed at the positions of the micro components 800 a, 800 b, and 800 c on the third conveyance path 350. Here, a vertical force F 360 b is applied from the vertical transmission member 360 b to the micro component 800 at the position of the micro component 800 a via the third transport member 350. Further, a horizontal upward force F360a is applied from the horizontal transmission member 360a to the microcomponent 800 at the position of the microcomponent 800a via the third transport member 350. The micro component 800 at the position of the micro component 800a is transferred to the position of the micro component 800b by applying the resultant force of the forces F360a and F360b, that is, the force F800.

  Similarly, a vertical force F361b is applied from the vertical transmission member 360b to the microcomponent 800 at the position of the microcomponent 800b via the third conveying member 350. In addition, a horizontal upward force F361a is applied from the horizontal transmission member 360a to the microcomponent 800 at the position of the microcomponent 800b via the third transport member 350. The micro component 800 at the position of the micro component 800b is applied with the resultant force of the forces F361a and F361b, that is, the force F801, and is conveyed to the position of the micro component 800c.

  As described above, the micro component 800 in the third conveying member 350 is transferred from the position of the micro component 800a to the position of the micro component 800b, and is transferred from the position of the micro component 800b to the position of the micro component 800c.

  With the above configuration, horizontal vibration (force F360a) is stably supplied from the horizontal transmission member 360a to the third transport member 350, and vertical vibration (force F360b) is stably supplied from the vertical transmission member 360b. The third conveying member 350 can be stably vibrated. That is, even when a pitching phenomenon occurs in the linear part feeder 300, the micropart 800 can be stably conveyed. Furthermore, it is possible to easily change the vibration frequency, the spring constant, etc., and to easily obtain an arbitrary amplitude.

  Furthermore, the horizontal vibration (force F360a) can be reliably applied to the third transport member 350 from the piezoelectric vibrating portion 303 via the horizontal transmission member 360a, and from the weight portion 302 via the vertical transmission member 360b. The vibration (force F360b) in the vertical direction can be reliably applied to the third transport member 350.

  In the component supply apparatus 300 according to the present invention, the conveyance path formed in the first conveyance member 310 and the second conveyance member 320 corresponds to a straight conveyance path, the linear part feeder 300 corresponds to a component supply apparatus, and the base The part 301 corresponds to the base part, the piezoelectric vibration part 303 corresponds to the vibration part, the weight part 302 corresponds to the fixed part, the holding member 380 corresponds to the vibration isolation member, and the driving leaf spring 390 is driven. The third transfer member 350 corresponds to a reflux transfer path, the vertical transmission member 360b corresponds to a vertical transmission member, and the horizontal transmission member 360a corresponds to a horizontal transmission member.

  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.

1 is a schematic perspective view showing an example of a micropart supply device according to an embodiment of the present invention. 1 is a schematic perspective view showing an example of a micropart supply device according to an embodiment of the present invention. Schematic perspective view showing an example of the shape of a micropart conveyed in the present embodiment Schematic side view showing a partial internal structure of the linear feeder according to the present embodiment Side view of the linear part feeder 300 of FIG. The figure which showed the movement of the micro components in the 3rd conveyance member of the linear type parts feeder of FIG. 4 and FIG.

Explanation of symbols

200 parts feeder 300 linear feeders 302 weight portion 303 piezoelectric vibrating unit 320 first conveying member 330 second conveying member 350 third conveying member 360a horizontally transmission member 360b vertical transfer member 370 fixing plate 375 protruding portions 380 holding section 411 Piezoelectric element 800 Minute parts 800a, 800b, 800c Position of minute parts B Bolt

Claims (3)

A component supply apparatus including a linear conveyance path that linearly transfers a component supplied into the conveyance path by generating vibration in the conveyance path,
A base portion disposed at the bottom;
An excitation unit that is provided with the linear conveyance path and is disposed above the base unit to generate vibration;
A fixed portion provided below the excitation portion and above the base portion;
An anti-vibration member attached to the excitation unit and the base unit and dampening vibration transmitted from the excitation unit to the base unit;
A drive member that is attached to the excitation unit and the fixed unit and elastically deforms to generate vibrations in opposite phases to the fixed unit and the excitation unit;
A reflux conveyance path for refluxing the parts conveyed by the linear conveyance path from downstream to upstream;
And horizontal transmission member for transmitting the vibration in the horizontal direction to the return conveyance path from the exciting units,
A component supply apparatus comprising: a vertical direction transmission member configured to transmit vertical vibration from the fixed portion to the reflux conveyance path. The horizontal transfer member, the component supply device according to claim 1, characterized in that the extending direction is provided along Migihitsuji a vertical plane in the vibration part. The vertical transmission member, the component supply device according to claim 1 or claim 2, wherein the Egress thereof extending to the fixing portion is provided on along Migihitsuji horizontal plane.

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