Small parts fixed quantity supply device

Abstract

To provide a fixed amount supply device of small components which has a structure capable of surely supplying a fixed amount of small components each having a shaft part and a flange part.SOLUTION: A fixed amount supply device 100 of small components supplies a fixed amount of small components. The small component includes a shaft part 33a, and a flange part provided on one end of the shaft part. The fixed amount supply device 100 includes: a storage part 20 for storing the plurality of small components; a rotary disc 32 arranged at a bottom part of the storage part 20 and rotating in a disc surface direction; a through-hole 32a penetrating the rotary disc 32, having a smaller diameter than the flange part, and having a dimension in which the shaft part can enter; a flip-up mechanism for flipping up the small component in which the shaft part has entered the through-hole 32a; a discharge passage 19 for discharging the small components to the outside of the fixed amount supply device 100; and a turning mechanism for turning a movement direction of the small components flipped up by the flip-up mechanism toward the discharge passage 19.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a device for supplying a fixed quantity of small parts. [Background technology]

[0002] 2. Description of the Related Art Patent Document 1 discloses a constant-volume supplying device as an example of a device for constant-volume supplying of small parts. This constant-quantity supply device includes a turntable that is disposed in a storage section that stores a plurality of small parts and rotates in a direction toward the surface of the turntable, a storage pocket member provided in a through hole that passes through the turntable, a pocket hole that passes through the storage pocket member, and a lower member that is disposed below the turntable and has a discharge hole that passes through the lower member. When a small part is taken into the pocket hole of the storage pocket member and the lower end of the pocket hole is blocked by the lower member, the small part is held in the pocket hole, and the small part moves to a position where it overlaps with the discharge hole, whereby the small part is discharged downward through the discharge hole. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-069851 A Summary of the Invention [Problem to be solved by the invention]

[0004] According to the investigations of the present inventors, there is still room for improvement in the constant-volume feeder of Patent Document 1 in terms of more reliably feeding a constant volume of small parts having a shaft portion and a flange portion.

[0005] The present invention has been made in consideration of the above problems, and provides a device for supplying small parts in a fixed quantity that is structured to more reliably supply a fixed amount of small parts having a shaft portion and a flange portion. [Means for solving the problem]

[0006] According to the present invention, there is provided a constant quantity supplying device for supplying a constant quantity of small parts, comprising: The small part has a shaft portion and a flange portion provided at one end of the shaft portion, The quantitative supply device is a storage section for storing a plurality of the small parts; A rotating disk disposed at the bottom of the storage section and rotating in a disk surface direction; a through hole penetrating the rotating disk, the through hole having a diameter smaller than that of the flange portion and a size allowing the shaft portion to be inserted therein; a bounce-up mechanism for bouncing up the small part that has entered the through hole by the shaft portion; a discharge path for discharging the small parts to the outside of the quantitative supply device; a deflection mechanism that deflects the direction of movement of the small part that has been flipped up by the flip-up mechanism toward the discharge path; A small parts supplying device is provided, comprising: Effect of the Invention

[0007] According to the present invention, it is possible to more reliably supply a fixed amount of small parts having a shaft portion and a flange portion. [Brief description of the drawings]

[0008] [Figure 1] 1 is a front cross-sectional view of a device for quantitatively supplying small parts according to an embodiment of the present invention; [Diagram 2] 1 is a plan cross-sectional view of a quantitative supply device for small parts according to an embodiment of the present invention; [Diagram 3] 1 is a left sectional view of a device for quantitatively supplying small parts according to an embodiment of the present invention; [Figure 4] 1 is a right-side cross-sectional view of a device for quantitatively supplying small parts according to an embodiment of the present invention. [Diagram 5] 2 is a front cross-sectional view of the internal mechanism of the device for quantitatively supplying small parts according to the embodiment; FIG. [Figure 6] 1 is a block diagram of a constant-volume supply device for small parts according to an embodiment of the present invention; [Figure 7] 5A to 5C are schematic front cross-sectional views showing the operation of the device for supplying small parts in a constant volume according to the embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

[0010] 5, the internal structure of the housing 10 (excluding the discharge path 19, etc.) is shown tilted so that the turntable 32, the storage section bottom plate 15a, and the cover section 16a are horizontal (extending in the left-right direction in FIG. 5). As shown in FIG. 1, the discharge path 19 and the second solenoid 76 (and the first solenoid 75) actually overlap each other when viewed from the front. FIG. 2 shows the internal configuration of the housing 10 as viewed from above in FIG. In addition, in each figure, components are appropriately omitted to avoid the drawings becoming complicated.

[0011] As shown in FIG. 1, the quantitative supply device 100 for small parts (hereinafter referred to as quantitative supply device 100) of this embodiment is a quantitative supply device 100 that supplies a fixed amount of small parts 90 (see FIG. 7), and the small parts 90 have a shaft portion 90a and a flange portion 90b provided at one end of the shaft portion 90a. The quantitative supply device 100 comprises a storage section 20 for storing a plurality of small parts 90, a turntable 32 arranged at the bottom of the storage section 20 and rotating in the direction of the turntable surface, a through hole 32a penetrating the turntable 32, the through hole 32a having a smaller diameter than the flange portion 90b and having a size allowing the shaft portion 90a to enter, a bounce-up mechanism for bouncing upward the small parts 90 that have entered the through hole 32a with the shaft portion 90a, a discharge path 19 for discharging the small parts 90 to the outside of the quantitative supply device 100, and a turning mechanism for changing the direction of movement of the small parts 90 bounced up by the bounce-up mechanism toward the discharge path 19.

[0012] According to the quantitative supply device 100 of this embodiment, a through hole 32a having a smaller diameter than the flange portion 90b and a size large enough for the shaft portion 90a to enter is formed in the turntable 32, so that only one shaft portion 90a of each small part 90 can enter the through hole 32a at a time. Furthermore, the shaft portion 90a is equipped with a bounce-up mechanism that bounces upward the small parts 90 that have entered the through hole 32a, and a turning mechanism that changes the direction of movement of the small parts 90 bounced up by the bounce-up mechanism toward the discharge path 19, so that the small parts 90 that have entered the through hole 32a due to the shaft portion 90a can be reliably discharged outside the quantitative supply device 100. It should be noted that by repeating the operation of discharging the small parts 90 a predetermined number of times (one or more times), a fixed amount of small parts 90 can be supplied. The small parts 90 are supplied (discharged) to the removal tray 81, for example, as described below.

[0013] The small part 90 is not particularly limited, but may be made of, for example, a non-magnetic material, and in this embodiment, the small part 90 is made of resin. As the small part 90, a plastic fastener used for fastening parts such as automobile parts to each other is preferably used.

[0014] The configuration of each part of the constant volume supply device 100 will be described in more detail below.

[0015] The constant-volume supply device 100 includes a housing 10. The housing 10 is, for example, a rectangular parallelepiped shape, and is rectangular in plan view. The housing 10 includes a first wall 11 that is a left wall, a second wall 12 that is a right wall, a third wall 13 that is a front wall, a fourth wall 14 that is a rear wall, and a housing bottom plate 10a. The wall surfaces of the first wall 11 and the second wall 12 face in the left-right direction, and the first wall 11 and the second wall 12 face each other in parallel. The wall surfaces of the third wall 13 and the fourth wall 14 face each other in the front-rear direction, and the third wall 13 and the fourth wall 14 face each other in parallel. The housing bottom plate 10a closes the bottom surface of the housing 10. The various components of the constant volume dispenser 100 are attached directly or indirectly to the housing 10 .

[0016] A rotating disk 32 is provided in the middle of the interior of the housing 10 in the vertical direction.

[0017] The rotating plate 32 is formed, for example, in a flat disk shape, and is arranged in the housing 10 in a position tilted with respect to the horizontal plane. In the case of this embodiment, the rotating plate 32 is arranged, for example, as shown in Fig. 1, inclined upward to the right, and arranged so as not to have any tilt in the front-rear direction.

[0018] The rotating disk 32 is indirectly held by the housing 10 in a state in which it can rotate in the direction of the surface of the rotating disk 32, that is, in a state in which it can rotate around a rotation axis perpendicular to the surface of the rotating disk 32. More specifically, for example, a table rotation motor 73 that applies rotational power to the rotating platen 32 is indirectly held by the housing 10, and an upper end of a motor shaft of the table rotation motor 73 is connected to the rotating platen 32 and holds the rotating platen 32. The axial direction of this motor shaft coincides with the axial direction of the rotating platen 32. The upper end of the motor shaft of the table rotation motor 73 is inserted into a central hole formed in the center of the turntable 32. For example, the upper end of the motor shaft of the table rotation motor 73 is formed in a D-cut shape, and the central hole is formed in a D-cut shape that fits the motor shaft. In this embodiment, the rotation direction of the turntable 32 by the table rotation motor 73 is counterclockwise when viewed from the top side of the turntable 32.

[0019] In the rotating disk 32, at a position offset from the center hole toward the outer periphery, a through hole 32a is formed penetrating the rotating disk 32 from front to back. In the case of this embodiment, as shown in Fig. 2, ten through holes 32a are arranged at equal intervals in the circumferential direction of the rotating disk 32. Note that the number of through holes 32a is not limited to this example. 7, lower portion 321 of through hole 32a is formed in a cylindrical shape, and upper portion 322 of through hole 32a is formed in an inverted truncated cone shape. In other words, upper portion 322 of through hole 32a is shaped like a mortar. The upper end of lower portion 321 is connected to the lower end of upper portion 322, and lower portion 321 and upper portion 322 are in communication with each other. The through holes 32a are formed, for example, to have the same shape and dimensions as one another. 2 shows a state in which small parts 90 are held in the through-holes 32a at the left end and the through-holes 32a at the right end. The state in which small parts 90 are held in the through-holes 32a means that the shaft portion 90a of the small part 90 is inserted into the through-holes 32a and the flange portion 90b is disposed along the upper surface of the rotating disk 32, as shown in FIG.

[0020] The constant volume supply device 100 is provided with a reservoir bottom plate component 15 that divides the internal space of the housing 10 into upper and lower portions. As shown in Figure 5, the storage section bottom plate component 15 has a storage section bottom plate portion 15a that is arranged flush with the upper surface of the turntable 32, a first inclined portion 15b that stands diagonally upward from the left edge of the storage section bottom plate portion 15a, and a second inclined portion 15c that is connected above the upper edge of the first inclined portion 15b. Since reservoir bottom plate portion 15a is flush with the upper surface of turntable 32, in this embodiment, reservoir bottom plate portion 15a is disposed with an upward sloping rightward angle. A circular opening is formed in reservoir bottom plate portion 15a, and rotating disk 32 is exposed upward through this opening. The first inclined portion 15b is perpendicular to the storage section bottom plate portion 15a, the second inclined portion 15c has a gentler inclination angle than the first inclined portion 15b, and the upper edge of the second inclined portion 15c is positioned along the inner surface of the first wall portion 11. Inside the housing 10, the area above the reservoir bottom plate portion 15a constitutes a reservoir 20. In the storage section 20, a plurality of small parts 90 having the same shape and size are stored.

[0021] The constant quantity supply device 100 further includes an upper bottom plate constituent member 16 disposed above the turntable 32. The upper bottom plate constituent member 16 has a cover portion 16a formed in a flat plate shape and facing parallel to the upper surface of the turntable 32, a standing portion 16b standing upward from the right edge of the cover portion 16a, and a top surface portion 16c connected to the upper edge of the standing portion 16b. The standing portion 16b is perpendicular to the cover portion 16a, and the top surface portion 16c is disposed parallel to the cover portion 16a. Small parts 90 in the upper part of storage section 20 (above cover portion 16a) are supplied to the bottom of storage section 20 (below cover portion 16a) from between the side wall of storage section 20 (in this embodiment, first wall portion 11 of housing 10) and the lower edge of cover portion 16a in the inclined direction (flow opening 21 shown in Figure 1, etc.), and are further supplied onto turntable 32 by first rotating body 33 and second rotating body 34 described later.

[0022] In this way, the quantitative supply device 100 comprises a cover portion 16a which covers the upper part of the turntable 32 and is arranged at an incline along the upper surface of the turntable 32, and a flow-down opening 21 which is located beyond the lower edge of the cover portion 16a in the downward direction of the inclination of the cover portion 16a and allows small parts 90 to flow down from above the cover portion 16a toward the bottom of the storage section 20. This makes it possible to appropriately suppress the number of small parts 90 supplied onto the turntable 32. This makes it possible to suppress the occurrence of a state in which there are too many small parts 90 on the turntable 32, making it difficult for the small parts 90 to flow on the turntable 32 (a state in which the small parts 90 are bridged).

[0023] The constant volume supply device 100 further includes a shielding portion 17, which will be described below. As shown in FIG. 5, the shielding portion 17 has an upright portion 17a disposed along the upright portion 16b, and a top surface portion 17b extending rightward from the upper edge of the upright portion 17a.

[0024] The area within the storage section 20 is divided into upper and lower sections by the upper bottom plate component 16 and the shielding section 17. The only opening through which small parts 90 can move from the area above the upper bottom plate component 16 and the shielding portion 17 within the storage portion 20 to the area below the upper bottom plate component 16 and the shielding portion 17 is the flow-down opening 21. Therefore, small parts 90 present in the area above the upper bottom plate component 16 and the shielding portion 17 within the storage portion 20 are supplied onto the turntable 32 only from the flow-down opening 21. It is also preferable that the fixed position of the upper bottom plate component 16 relative to the housing 10 is adjustable in the inclination direction of the upper bottom plate component 16. In this way, it is possible to adjust the dimensions of the flow-down opening 21 according to the shape and size of the small parts 90 or the desired supply amount of the small parts 90 onto the turntable 32.

[0025] The constant quantity supply device 100 further includes a stirring member disposed in the vicinity of the flow-down opening 21 for stirring the small parts 90. This makes it possible to regulate to some extent the quantity of small parts 90 flowing down through the flow-down opening 21, and also to prevent the small parts 90 from bridging and clogging the flow-down opening 21. In other words, an appropriate amount of small parts 90 can be made to flow down smoothly to the bottom of the storage section 20 through the flow-down opening 21.

[0026] The stirring member is, for example, a screw 31 arranged along the extension direction of the lower edge of the cover portion 16a. The screw 31 has a cylindrical shaft portion and a helical rib standing on the outer circumferential surface of the shaft portion (see FIG. 3). The screw 31 is rotated around its axis by a screw rotation motor 71. The axial direction of the screw 31 extends in the front-rear direction (the depth direction in FIG. 1). The screw 31 is disposed in the vicinity of the upper side of the flow-down opening 21. The driving force of the screw rotating motor 71 is transmitted to the screw 31 by a drive transmission mechanism (not shown).

[0027] Furthermore, the constant volume supply device 100 has an eaves portion 22 disposed above the screw 31. The eaves portion 22 is provided, for example, on the inner surface of the first wall portion 11, and is inclined downward toward the right. By having the eaves portion 22 bear the load of the small parts 90 stored above the eaves portion 22, the application of excessive load to the screw 31 and the flow-down opening 21 is prevented, allowing the screw 31 to rotate smoothly while also preventing the occurrence of bridging at the flow-down opening 21.

[0028] The constant quantity supply device 100 further includes a rotor (for example, two rotors, a first rotor 33 and a second rotor 34) that supplies the small parts 90 at the bottom of the storage section 20 onto the turntable 32. This allows the small parts 90 to be easily supplied onto the rotating plate 32 which is disposed at an angle. In addition, since the turntable 32 is inclined, the amount of small parts 90 supplied onto the turntable 32 can be prevented from becoming excessive. The first rotor 33 and the second rotor 34 are erected at a portion of the storage section bottom plate portion 15a below the turntable 32 (on the downward slope).

[0029] Each rotor has a rotor shaft portion that serves as the center of rotation, and a blade portion that extends radially from the rotor shaft portion. As a result, as the rotor rotates, the vanes push the small parts 90 and supply the small parts 90 onto the rotating plate 32 .

[0030] The first rotor 33 has a shaft 33a (rotor shaft) that is erected perpendicularly to the bottom plate 15a of the storage section, and an upper blade 33b and a lower blade 33c that extend from the shaft 33a in the radial direction of the shaft 33a. That is, the upper blade 33b and the lower blade 33c extend parallel to the bottom plate 15a of the storage section. The lower blade 33c is provided at a portion of the shaft 33a closer to the base end than the upper blade 33b. In this embodiment, the first rotor 33 has a plurality of (e.g., three) upper blades 33b and a plurality of (e.g., three) lower blades 33c. The upper blades 33b are arranged at equal angular intervals (120 degree intervals) around the axis of the shaft 33a. The lower blades 33c are arranged at equal angular intervals (120 degree intervals) around the axis of the shaft 33a. Furthermore, one lower blade 33c is located between two adjacent upper blades 33b. That is, in this embodiment, the first rotor 33 has a total of six blades, and each blade is arranged at equal angular intervals (60 degree intervals) around the axis of the shaft 33a. The upper blades 33b and the lower blades 33c are arranged alternately around the axis of the shaft 33a.

[0031] Similarly, the second rotor 34 has a shaft 34a (rotor shaft) that is erected perpendicularly to the bottom plate 15a of the storage section, and an upper blade 34b and a lower blade 34c that extend from the shaft 34a in the radial direction of the shaft 34a. That is, the upper blade 34b and the lower blade 34c extend parallel to the bottom plate 15a of the storage section. The lower blade 34c is provided at a portion of the shaft 34a closer to the base end than the upper blade 34b. In this embodiment, the second rotor 34 has a plurality of (e.g., three) upper blades 34b and a plurality of (e.g., three) lower blades 34c. The upper blades 34b are arranged at equal angular intervals (120 degree intervals) around the axis of the shaft 34a. The lower blades 34c are arranged at equal angular intervals (120 degree intervals) around the axis of the shaft 34a. Furthermore, one lower blade 34c is located between two adjacent upper blades 34b. That is, in this embodiment, the second rotor 34 has a total of six blades, and each blade is arranged at equal angular intervals (60 degree intervals) around the axis of the shaft 34a. The upper blades 34b and the lower blades 34c are arranged alternately around the axis of the shaft 34a.

[0032] As shown in FIG. 2, the first rotating body 33 is disposed on the near side (front), and the second rotating body 34 is disposed on the far side (rear). The first rotor 33 and the second rotor 34 are rotationally driven by the power of a common rotor motor 72. The constant-volume feeder 100 has a total of five gears, namely, a first gear 35a, a second gear 35b, a third gear 35c, a fourth gear 35d, and a fifth gear 35e, as gears that transmit driving force from the rotor motor 72 to the first rotor 33 and the second rotor 34, as shown in FIG. The first gear 35a is provided, for example, on a motor shaft of the rotor motor 72. The second gear 35b meshes with the first gear 35a and is provided coaxially with the shaft portion 33a of the first rotor 33, and rotates integrally with the shaft portion 33a. The third gear 35c meshes with the second gear 35b. The fourth gear 35d meshes with the third gear 35c. The fifth gear 35e meshes with the fourth gear 35d and is provided coaxially with the shaft portion 34a of the second rotor 34, and rotates integrally with the shaft portion 34a. In this manner, since the third gear 35c and the fourth gear 35d are interposed between the second gear 35b and the fifth gear 35e, the second gear 35b and the fifth gear 35e rotate in opposite directions to each other. That is, the first rotor 33 and the second rotor 34 rotate in opposite directions to each other.

[0033] In this way, the constant-volume supply device 100 has multiple rotating bodies (for example, two rotating bodies, a first rotating body 33 and a second rotating body 34), and the rotating body shaft portions (shaft portion 33a and shaft portion 34a) of the multiple rotating bodies are arranged parallel to each other, and adjacent rotating bodies rotate in opposite directions to each other. Furthermore, the rotating bodies (each of the first rotating body 33 and the second rotating body 34) have a plurality of wing parts arranged at different heights. Therefore, when there is a small part 90 overlapping another small part 90 or an upside-down small part 90 (in a position in which the shaft part 90a is located above the flange part 90b), such small parts 90 can be appropriately repelled by the wing parts of the rotating bodies, and it is possible to prevent such small parts 90 from being supplied onto the turntable 32.

[0034] 2, it is preferable that the first rotating body 33 and the rotating disk 32 are arranged so that one or more through holes 32a of the rotating disk 32 are present inside the turning radius of the blade portion of the first rotating body 33 when viewed in the axial direction of the shaft portion 33a. Similarly, it is preferable that the second rotating body 34 and the rotating disk 32 are arranged so that one or more through holes 32a of the rotating disk 32 are present inside the turning radius of the blade portion of the second rotating body 34 when viewed in the axial direction of the shaft portion 34a. With this configuration, small parts 90 can be supplied onto the rotating disk 32 by the blades of the first rotating body 33 and the second rotating body 34, and the shafts 90a of the small parts 90 can fit into the through holes 32a.

[0035] When viewed in the axial direction of the shaft 33a and the shaft 34a, the movement locus of the tip of the blade of the first rotor 33 and the movement locus of the tip of the blade of the second rotor 34 intersect (see FIG. 2). However, in order to suppress interference between the blade of the first rotor 33 and the blade of the second rotor 34 in a region where the turning radius of the blade of the first rotor 33 and the turning radius of the blade of the second rotor 34 overlap, the rotation phase of the first rotor 33 and the rotation phase of the second rotor 34 are set so that when the upper blade 33b moves in the region, only the lower blade 34c of the upper blade 34b and the lower blade 34c moves in the region, and when the lower blade 33c moves in the region, only the upper blade 34b of the upper blade 34b and the lower blade 34c moves in the region. Furthermore, the fixing position of the wing portion relative to the shaft portion 33a (the position in the axial direction of the shaft portion 33a) is not limited to two steps, up and down, but it is preferable that a position can be selected from three or more positions depending on the shape and dimensions of the small part 90. Similarly, the fixing position of the wing portion relative to the shaft portion 34a (the position in the axial direction of the shaft portion 34a) is not limited to two steps, up and down, but it is preferable that a position can be selected from three or more positions depending on the shape and dimensions of the small part 90.

[0036] Moreover, the blade portion of each rotor is preferably a rod-shaped body (e.g., a round rod-shaped body) made of an elastic material such as rubber or synthetic rubber and capable of elastic deformation. This makes it possible to prevent the small part 90 from being caught between the blade portions of the first rotor 33 and the second rotor 34, even if the small part 90 is sandwiched between the blade portions of the first rotor 33 and the second rotor 34.

[0037] The constant quantity supply device 100 further includes a barrier 36 disposed above the turntable 32. The lower edge of the barrier 36 extends along the upper surface of the turntable 32. As shown in Fig. 7, a distance D between the lower edge of the barrier 36 and the upper surface of the turntable 43 is smaller than the length dimension L of the shaft portion 90a of the small part 90. As a result, when a small part 90 with the shaft part 90a facing up and the flange part 90b facing down is present on the turntable 32, the small part 90 cannot pass through the gap between the upper surface of the turntable 32 and the lower edge of the barrier 36. Also, when a small part 90 fits into the through-hole 32a in an inclined position relative to the turntable 32, the barrier 36 can easily remove the small part 90 from above the turntable 32.

[0038] The barrier 36 is formed, for example, in a plate shape, and is provided below the upright portion 17a of the shielding portion 17 so as to be flush with the upright portion 17a. As described above, the turntable 32 rotates, for example, counterclockwise. The barrier 36 is disposed above the turntable 32 at a position where the through-hole 32a rises along the inclination of the turntable 32. In other words, the barrier 36 is disposed on the turntable 32 at a position on the front side with respect to the rotation axis of the turntable 32.

[0039] The barrier 36 is preferably made of an elastic material such as rubber or synthetic rubber, etc. This can prevent the small parts 90 from getting caught between the barrier 36 and the rotating disk 32.

[0040] As described above, the constant quantity supply device 100 is provided with a bounce-up mechanism that bounces up the small part 90 whose shaft portion 90a has entered the through-hole 32a. In this embodiment, when the small part 90 held by the through hole 32a reaches the flip-up position 32c shown in Fig. 2, the flip-up mechanism flips up the small part 90. In other words, when the shaft 90a of the small part 90 supplied onto the turntable 32 by the first rotor 33 or the second rotor 34 enters the through hole 32a and the small part 90 is held in the through hole 32a, the small part 90 passes under the barrier 36, reaches the flip-up position 32c, and is flipped up by the flip-up mechanism.

[0041] In this embodiment, the flip-up mechanism includes a flip-up actuator and a flip-up member 51 that is moved upward by the flip-up actuator and collides with the shaft portion 90a in the through hole 32a from below, flipping the small part 90 upward. In the case of this embodiment, the flip-up actuator is composed of a flip-up solenoid (for example, a first solenoid 75 (FIG. 4) and a second solenoid 76).

[0042] 5, the plinking member 51 has, for example, a cylindrical shaft portion 51a and a flange portion 51b that protrudes radially outward from the lower portion of the shaft portion 51a. The outer diameter of the shaft portion 51a is smaller than the inner diameter of the lower portion 321 of the through hole 32a. The shaft portion 51a of the plinking member 51 pushes up the shaft portion 90a in the through hole 32a from below, thereby plinking the small part 90 upward. The outer diameter of the flange portion 51b is larger than the inner diameter of the lower portion 321. The first solenoid 75 is disposed in front of the discharge passage 19 , and the second solenoid 76 is disposed in the rear of the discharge passage 19 . The constant quantity supply device 100 includes, for example, a transmission plate 38 that is installed across an upper end of the first solenoid 75 and an upper end of the second solenoid 76. The transmission plate 38 is a plate-like member that is long in the front-rear direction and is disposed horizontally. A spring member 51 is fixed to the center of the transmission plate 38 in the front-rear direction. The first solenoid 75 and the second solenoid 76 are operated simultaneously to instantaneously move the transmission plate 38 upward while maintaining the transmission plate 38 horizontal, whereby the plectrum member 51 instantaneously moves upward along with the transmission plate 38, and the small part 90 is flipped upward by the shaft portion 51a of the plectrum member 51. The first solenoid 75 and the second solenoid 76 are arranged spaced apart from each other in the front and rear with the discharge passage 19 in between, so that the small parts 90 can be bounced upward by using the first solenoid 75 and the second solenoid 76 without interference between the discharge passage 19 and the first solenoid 75 and the second solenoid 76.

[0043] As shown in FIG. 1, the discharge passage 19 extends vertically along the inner surface of the second wall portion 12 of the housing 10, and the lower end portion of the discharge passage 19 penetrates the second wall portion 12 from the inside to the outside. The small parts 90 discharged from the lower end of the discharge path 19 to the outside of the housing 10 are stored on a removal tray 81 provided on the outside of the housing 10.

[0044] As described above, the constant-quantity supply device 100 is provided with a turning mechanism that turns the direction of movement of the small parts 90 bounced up by the bounce-up mechanism toward the discharge path 19. This prevents the small parts 90 bounced up by the bounce-up mechanism from returning back onto the turntable 32, and ensures that the small parts 90 are discharged to the outside of the constant-quantity supply device 100 via the discharge path 19.

[0045] In this embodiment, the turning mechanism has a rotating member 18 that is pivotally supported, and a turning actuator (e.g., a third solenoid 77) that rotates the rotating member 18 in synchronization with the operation of the flip-up actuator. The rotating member 18 has a collision portion (e.g., the first portion 18a or the second portion 18b described later) with which the small parts 90 bounced upward by the bounce-up mechanism directly collide, and a guide portion (e.g., the third portion 18c described later) which is rotated by a turning actuator to shield the space between the collision portion and the turntable 32 and guide the small parts 90 toward the discharge path 19. The collision portion and the guide portion intersect with each other, and the rotation axis 18d of the rotating member 18 extends in a direction perpendicular to the arrangement direction of the collision portion and the guide portion at the boundary between the collision portion and the guide portion. With this configuration, it is possible to more reliably prevent the small parts 90 bounced up by the bounce-up mechanism from returning back onto the turntable 32, and to reliably discharge the small parts 90 to the outside of the quantitative supply device 100 via the discharge path 19.

[0046] More specifically, the rotating member 18 has a first portion 18a, a second portion 18b, and a third portion 18c each formed in a flat plate shape. The first portion 18a and the third portion 18c are connected to each other via the second portion 18b. The first portion 18a and the second portion 18b intersect with each other, forming an obtuse angle therebetween. The second portion 18b and the third portion 18c intersect with each other, forming an obtuse angle therebetween. The first portion 18a and the third portion 18c are perpendicular to each other. The rotating member 18 is disposed below the top surface portion 17b of the shielding portion 17 and in an area to the right of the standing portion 17a. The rotating member 18 is rotatably supported with respect to the housing 10. A rotating shaft 18d of the rotating member 18 extends in the front-rear direction. The rotation shaft 18d supports the second portion 18b at a middle portion between an end edge on the first portion 18a side and an end edge on the third portion 18c side. In the normal state where the rotating member 18 is not rotated by the third solenoid 77, the first portion 18a is arranged along the top surface portion 17b of the shielding portion 17, and the third portion 18c is arranged along the upright portion 17a of the shielding portion 17.

[0047] When the third solenoid 77 is actuated, the push-up member 52 collides with the first portion 18a of the rotating member 18 from below, and the rotating member 18 changes from the posture indicated by the solid line in Fig. 5 to the posture indicated by the two-dot chain line. In other words, the rotating member 18 rotates. The third solenoid 77 rotates the rotary member 18 the moment after the small part 90 at the flip-up position 32c is flipped up by the flip-up mechanism. The small part 90 that is thrown up collides with, for example, the first part 18a (or the second part 18b), and then, as the small part 90 falls, the small part 90 is redirected toward the discharge path 19 (to the right) by, for example, the third part 18c, and the small part 90 is guided toward the discharge path 19 rather than the turntable 32.

[0048] In this embodiment, the flip-up position 32c is the right end of the turntable 32, that is, the highest position in the tilt direction of the turntable 32, as shown in FIG. 2. In addition, the small part 90 held by the through hole 32a passes through the detection position 32b shown in FIG. 2 as it moves toward the flip-up position 32c as the turntable 32 rotates. For example, a detection sensor 74 is provided above the detection position 32b to optically detect whether or not a small part 90 is held in the through hole 32a. After the detection sensor 74 detects that the small part 90 is held in the through hole 32a at the detection position 32b, when the small part 90 reaches the flip-up position 32c, the rotation of the turntable 32 is stopped, and in that state (a state in which the rotation of the turntable 32 is stopped), the flip-up mechanism performs the flip-up operation of the small part 90. The rotation phase of the turntable 32 is detected by the encoder 37. In the present embodiment, the rotation angle of the turntable 32 from the detection position 32b to the flip-up position 32c is 60 degrees. Therefore, after it is detected that the small part 90 is held in the through-hole 32a at the detection position 32b, the turntable 32 is rotated a further 60 degrees, at which point the rotation of the turntable 32 is temporarily stopped, and during this stop, the flip-up mechanism performs the flip-up operation of the small part 90.

[0049] A passage sensor 78 (see FIG. 5) is provided in the discharge path 19 to detect the passage of small parts 90. The fixed quantity supply device 100 (a control unit 70 described later) is adapted to recognize the number of small parts 90 discharged onto the take-out tray 81 by counting the number of times that the passage sensor 78 detects small parts 90.

[0050] The constant quantity supply device 100 further includes a removal tray 81 provided outside the housing 10. The take-out tray 81 is disposed below the downstream end of the discharge path 19. The take-out tray 81 receives (captures and holds) the small parts 90 that are discharged to the outside of the housing 10 via the discharge path 19. The take-out tray 81 is formed, for example, in a hemispherical shape (the shape of the lower half of a sphere).

[0051] The take-out tray 81 is supported by a support member 82 configured by combining two plate-like members 82a, 82b arranged in an L-shape when viewed from the front, for example. Plate-shaped member 82a is disposed horizontally and protrudes to the right from second wall portion 12. Plate-shaped member 82b is disposed in an upright state along the outer surface of second wall portion 12. The left end portion of plate-shaped member 82a is fixed to the lower end portion of plate-shaped member 82b. Dispensing tray 81 is supported by plate-shaped member 82a.

[0052] For example, a removal determination switch 84 for detecting that a small part 90 has been removed from the removal tray 81 by an operator is provided on the inner surface side of the second wall portion 12. The removal determination switch 84 is disposed at a position facing the plate-shaped member 82b. The plate-shaped member 82b is provided with a switch pressing portion 83 which is a protrusion for pressing the removal determination switch 84. The switch pressing portion 83 can be formed, for example, of a bolt fixed to the plate-shaped member 82b in a state in which it penetrates the plate-shaped member 82b. The switch pressing portion 83 is configured to press the removal determination switch 84 through an opening (not shown) formed in the second wall portion 12. Further, a hinge 85 is provided directly or indirectly on the outer surface side of the second wall portion 12. The hinge 85 includes a fixed portion 85a fixed to the outer surface side of the second wall portion 12, and a rotating portion 85b rotatable relative to the fixed portion 85a. The axis of rotation of the rotating portion 85b relative to the fixed portion 85a is in a direction along the outer surface of the second wall portion 12 and is horizontal. An upper end of the plate-shaped member 82b of the support member 82 is fixed to the rotating portion 85b of the hinge 85.

[0053] 6, the constant volume supply device 100 includes a control unit 70 that controls the operation of the constant volume supply device 100. The control unit 70 controls the operation of a screw rotation motor 71, a rotor motor 72, a table rotation motor 73, a first solenoid 75, a second solenoid 76, and a third solenoid 77. The control unit 70 is adapted to receive a detection signal from the detection sensor 74, a detection signal from the passage sensor 78, and a detection signal from the removal determination switch 84, respectively.

[0054] The constant-quantity supply device 100 is equipped with an alarm unit such as a lamp (not shown). When a predetermined number of small parts 90 have been discharged onto the take-out tray 81, the control unit 70 stops the operation of the screw rotation motor 71 (rotation of the screw 31), the operation of the rotor motor 72 (rotation of the first rotor 33 and the second rotor 34), and the operation of the table rotation motor 73 (rotation of the turntable 32), and outputs an alarm signal to the alarm unit, which, upon receiving the alarm signal, performs an alarm operation such as emitting light. This notification action enables the worker to recognize that a predetermined number of small parts have been discharged onto the removal tray 81.

[0055] The removal determination switch 84 is normally pressed by the switch pressing portion 83 due to the weight of the removal tray 81 and the support member 82, and is turned on. When the small parts 90 discharged onto the take-out tray 81 are picked up by the worker's hand from above the take-out tray 81, the take-out tray 81 is pulled to the left in Fig. 1, causing the rotating part 85b, the support member 82 and the take-out tray 81 to rotate relative to the fixed part 85a, and the switch pressing part 83 to rise up from the take-out determination switch 84. This causes the take-out determination switch 84 to be temporarily turned off. The control unit 70 monitors the state of the removal determination switch 84, and resumes driving the screw rotation motor 71, the rotating body motor 72, and the table rotation motor 73 a predetermined time after (e.g., 2 seconds) from the time when the removal determination switch 84 switches from the on state to the off state. In this way, it is possible to repeatedly perform the operation of discharging a predetermined number of small parts 90 from the storage section 20 to the removal tray 81, the operation of an alarm by the alarm section, and the operation of an operator removing a predetermined number of small parts 90 from the removal tray 81.

[0056] In addition, if the detection sensor 74 continues to not detect small parts 90 for a certain period of time, the rotational operation of the turntable 32, the rotational operation of the first rotating body 33 and the second rotating body 34, and the rotational operation of the screw 31 are stopped in order to replenish small parts 90 in the storage section 20.

[0057] Although the embodiment has been described above with reference to the drawings, this is merely an example of the present invention, and various configurations other than those described above can also be adopted.

[0058] The present embodiment encompasses the following technical ideas. (1) A fixed quantity supply device that supplies a fixed quantity of small parts, The small part has a shaft portion and a flange portion provided at one end of the shaft portion, The quantitative supply device is a storage section for storing a plurality of the small parts; A rotating disk disposed at the bottom of the storage section and rotating in a disk surface direction; a through hole penetrating the rotating disk, the through hole having a diameter smaller than that of the flange portion and a size allowing the shaft portion to be inserted therein; a bounce-up mechanism for bouncing up the small part that has entered the through hole by the shaft portion; a discharge path for discharging the small parts to the outside of the quantitative supply device; a deflection mechanism that deflects the direction of movement of the small part that has been flipped up by the flip-up mechanism toward the discharge path; A device for supplying small parts in fixed quantities. (2) The plucking mechanism is A flip-up actuator; a flip-up member that is moved upward by the flip-up actuator and strikes the shaft portion in the through hole from below, flipping up the small part upward; The quantitative supply device for small parts according to (1) above. (3) A quantitative supply device for small parts according to (2), wherein the lifting actuator is constituted by a lifting solenoid. (4) The turning mechanism includes: A rotating member that is pivotally supported so as to be swingable; a turning actuator that rotates the rotating member in synchronization with the operation of the flip-up actuator; having The rotating member is a collision portion with which the small part bounced upward by the bounce-up mechanism directly collides; a guide portion that is rotated by the deflection actuator to shield the collision portion from the rotary disk and guide the small parts to the discharge path; having The collision portion and the guide portion intersect with each other, A quantitative supply device for small parts as described in (2) or (3), wherein the rotation axis of the rotating member extends in a direction perpendicular to the arrangement direction of the collision section and the induction section at the boundary between the collision section and the induction section. (5) The rotating disk is disposed at an incline, The quantitative supply device for small parts according to any one of (1) to (4), further comprising a rotating body that supplies the small parts at the bottom of the storage section onto the rotating plate. (6) A quantitative supply device for small parts as described in (5), wherein the rotating body has a rotating body shaft portion that serves as the center of rotation and a blade portion extending radially from the rotating body shaft portion. (7) A plurality of the rotating bodies are provided, The rotor shafts of the plurality of rotors are arranged parallel to each other, The device for supplying a fixed quantity of small parts according to (6) above, wherein adjacent rotating bodies rotate in opposite directions to each other. (8) A quantitative supply device for small parts according to (6) or (7), wherein the rotating body has a plurality of blade portions arranged at different heights. (9) The quantitative supply device is A cover portion that covers an upper portion of the rotating plate and is disposed at an incline along an upper surface of the rotating plate; a flow-down opening located beyond a lower edge of the cover in a downward direction of the inclination of the cover, allowing the small parts to flow down from above the cover toward a bottom of the storage section; The device for supplying a fixed quantity of small parts according to any one of (6) to (8) is provided. (10) A quantitative supplying device for small parts as described in (9) above, further comprising an agitating member disposed in the vicinity of the flow-down opening for agitating the small parts. (11) The device for supplying a fixed quantity of small parts according to (10), wherein the stirring member is a screw arranged along the extending direction of the lower edge of the cover portion. (12) A barrier is provided above the rotating disk, a lower edge of the barrier extending along an upper surface of the rotating disk; A quantitative supply device for small parts according to any one of claims 1 to 11, wherein the distance between the lower edge of the barrier and the upper surface of the turntable is smaller than the length dimension of the shaft portion of the small part. (13) A device for supplying a fixed quantity of small parts according to (12), wherein the barrier is made of an elastic material. [Explanation of symbols]

[0059] 10. Chassis 10a Housing bottom plate 11 First wall 12 Second wall 13 Third wall 14 4th wall 15 Storage bottom plate component 15a Storage bottom plate 15b 1st slope 15c 2nd slope 16 Upper bottom plate component 16a Cover 16b Standing part 16c Top section 17 Shielding part 17a Standing part 17b Top section 18 Rotating members 18a Part 1 18b Part 2 18c Part 3 18d Rotation axis 19 Exhaust channel 20 Storage section 21 Downstream opening 22 Eaves 31 Screw 32 Turntable 32a through hole 321 Lower 322 Top 32b Detection position 32c Flip-up position 33 First Rotating Body 33a Shaft 33b Upper wing 33c Lower wing 34 Second Rotating Body 34a Shaft 34b Upper wing 34c Lower wing 35a 1st gear 35b 2nd gear 35c 3rd gear 35d 4th gear 35e 5th Gear 36 Barrier 37 Encoder 38 Transmission plate 51 Bachi-up material 51a Shaft 51b Flange part 52 Push-up member 70 Control section 71 Screw rotation motor 72 Rotating Motor 73 Table rotation motor 74 Detection Sensor 75 First solenoid 76 Second solenoid 77 Third solenoid 78 Passing Sensor 81 Removal plate 82 Support member 82a, 82b Plate-shaped members 83 Switch pressing part 84 Removal judgment switch 85 Hinge 85a Fixed part 85b Rotating part 90 Small parts 90a Shaft 90b Flange part 100 Small parts fixed quantity supply device

Claims

1. A fixed quantity supply device that supplies a fixed quantity of small parts, The small part has a shaft portion and a flange portion provided at one end of the shaft portion, The quantitative supply device is a storage section for storing a plurality of the small parts; A rotating disk disposed at the bottom of the storage section and rotating in a disk surface direction; a through hole penetrating the rotating disk, the through hole having a diameter smaller than that of the flange portion and a size allowing the shaft portion to be inserted therein; a bounce-up mechanism for bouncing up the small part that has entered the through hole by the shaft portion; a discharge path for discharging the small parts to the outside of the quantitative supply device; a deflection mechanism that deflects the direction of movement of the small part that has been flipped up by the flip-up mechanism toward the discharge path; A device for supplying small parts in fixed quantities.

2. The repelling mechanism is A flip-up actuator; a flip-up member that is moved upward by the flip-up actuator and strikes the shaft portion in the through hole from below, flipping up the small part upward; 2. The device for supplying small parts in a fixed quantity as claimed in claim 1, further comprising:

3. 3. The device for supplying a fixed quantity of small parts according to claim 2, wherein said lifting actuator is constituted by a lifting solenoid.

4. The turning mechanism includes: A rotating member that is pivotally supported so as to be swingable; a turning actuator that rotates the rotating member in synchronization with the operation of the flip-up actuator; having The rotating member is a collision portion with which the small part bounced upward by the bounce-up mechanism directly collides; a guide portion that is rotated by the deflection actuator to shield the collision portion from the rotary disk and guide the small parts to the discharge path; having The collision portion and the guide portion intersect with each other, 4. The device for supplying a fixed quantity of small parts according to claim 2, wherein the rotation axis of the rotating member extends in a direction perpendicular to the arrangement direction of the collision portion and the guide portion at the boundary between the collision portion and the guide portion.

5. The rotating plate is disposed at an incline, 5. The device for supplying a fixed quantity of small parts according to claim 1, further comprising a rotating body for supplying the small parts at the bottom of the storage portion onto the rotating plate.

6. 6. The device for supplying a fixed quantity of small parts according to claim 5, wherein the rotor has a rotor shaft portion which serves as a center of rotation, and a blade portion extending radially from the rotor shaft portion.

7. A plurality of the rotating bodies are provided, The rotor shafts of the plurality of rotors are arranged parallel to each other, 7. The device for supplying a fixed quantity of small parts according to claim 6, wherein adjacent said rotors rotate in opposite directions to each other.

8. 8. The device for supplying a fixed quantity of small parts according to claim 6, wherein the rotor has a plurality of blades arranged at different heights.

9. The quantitative supply device is A cover portion that covers an upper portion of the rotating plate and is disposed at an incline along an upper surface of the rotating plate; a flow-down opening located beyond a lower edge of the cover in a downward direction of the inclination of the cover, allowing the small parts to flow down from above the cover toward a bottom of the storage section; The device for supplying small parts in a constant quantity according to any one of claims 6 to 8, further comprising:

10. 10. The device for supplying a fixed quantity of small parts according to claim 9, further comprising an agitating member disposed in the vicinity of the downflow opening for agitating the small parts.

11. 11. The device for supplying a fixed quantity of small parts according to claim 10, wherein the stirring member is a screw disposed along the extending direction of the lower edge of the cover portion.

12. A barrier is provided above the rotating disk, a lower edge of the barrier extending along an upper surface of the rotating disk; 12. The device for supplying a fixed quantity of small parts according to claim 1, wherein a distance between a lower edge of the barrier and an upper surface of the rotating plate is smaller than a length dimension of the shaft portion of the small part.

13. 13. The device for supplying a constant quantity of small parts according to claim 12, wherein the barrier is made of an elastic material.

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