JP3095432B2 - Bead removal device with filler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filler-filled bead in which a plurality of hollow truncated cone-shaped storage holders on which a filler-filled bead is placed are stacked one on another and the filler-filled bead is sequentially taken out from the top of the mountain. It relates to a take-out device.

[0002]

2. Description of the Related Art The present applicant has already disclosed a take-out device for taking out a bead with a filler from the uppermost stage of a mountain as described above in Japanese Patent Application No. 1-245580 (September 2001).
On March 21).

[0003] This is a vertically movable shaft (piston rod of a cylinder) provided above the mountain and extending vertically, a movable plate attached to the lower end of the vertically movable shaft, and a circular shaft centered on the vertically movable shaft. And a permanent magnet attached to the movable plate and capable of adsorbing the bead with filler. Then, by lowering the elevating shaft and bringing the movable plate into contact with the bead with the filler placed on the uppermost storage holder, the bead with the filler is attracted to the permanent magnet, and then the elevating The bead with filler is taken out by raising the shaft.

[0004]

However, in such a conventional bead take-out device with a filler, the bead with the filler is not placed on the storage holder in a proper posture, and the bead with the filler is not placed horizontally. When the bead is slightly inclined, only a part of the bead with filler is attracted to the permanent magnet, and as a result, there is a problem that the attraction force is insufficient and the removal of the bead with filler may fail.

[0005] The present invention is directed to a take-out of a bead with a filler capable of adsorbing the bead with the filler over the entire circumference and reliably taking out the bead with the filler even when the bead with the filler is not placed on the storage holder in a proper posture. It is intended to provide a device.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a bead with a filler for sequentially taking out a bead with a filler from the uppermost stage of a mountain formed by stacking a plurality of hollow frustoconical storage holders on which beads with a filler are placed. An elevating shaft that can be raised and lowered extending in the vertical direction, a substantially horizontal support connected to the lift shaft, and a bead with a filler attached to the support on a circle centered on the lift shaft. And an adsorbent capable of adsorbing, the connection between the elevating shaft and the support is performed by a spherical joint, and the support can be somewhat swung.

[0007]

Now, it is assumed that a plurality of hollow truncated cone-shaped storage holders on which beads with filler are placed are stacked to form a mountain. Next, when taking out the bead with filler from the storage holder located at the top of the mountain, the elevating shaft and the support are lowered to lower the adsorbent to just above the bead with filler. Thereby, the bead with the filler is adsorbed by the adsorbent. Here, if the bead with filler is not placed on the storage holder in the correct posture and is slightly inclined with respect to the horizontal, only a part of the bead with filler is adsorbed by the adsorbent and removed. However, in this invention, the lifting shaft and the support are connected via a spherical joint so that the support can be slightly swung. Is swung so as to have the same inclination as that described above, and the adsorbent adsorbs the bead with the filler over the entire circumference. As a result,
When the elevating shaft is raised, the bead with the filler rises while being adsorbed by the adsorbent and is reliably taken out of the mountain.

Further, according to the second aspect of the present invention, when the elevating shaft is lowered, the inclined surface of the guide body engages with the inner surface of the upper end of the uppermost storage holder, and the storage holder is brought into the normal position. To push it back, the storage holder is centered and this centering corrects the slope of the peak. Further, when the elevating shaft is lowered before the adsorbent adsorbs the bead with the filler, the horizontal surface of the guide body is engaged with the upper surface of the uppermost storage holder. The elastic force is stored. And the elastic force thus stored in the spring is used to press the uppermost storage holder against the second storage holder when the bead with filler is separated from the uppermost storage holder by the adsorbent,
Separation of the bead with filler from the storage holder is ensured. In addition, in this case, since the two effects described above can be achieved by the guide body, the structure is simplified.

Further, according to the present invention, a plurality of types of beads with filler can be taken out with a simple structure.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 11 denotes a storage holder for storing a bead B with a filler, and the storage holder 11 is formed of a highly rigid resin. Each storage holder 11 has a shape of a hollow truncated cone expanding downward. Each of the storage holders 11 has an inclined portion 13 having a truncated cone shape. The inclined portion 13 has a constant thickness irrespective of the axial position, and does not deform even when subjected to some external force. Reference numeral 14 denotes a mounting portion that is continuous with the upper end of the inclined portion 13, and the mounting portion 14
Has a ring shape extending inward in the radial direction from the upper end thereof, and its inner diameter (the minimum inner diameter of the storage holder 11) is the same even if the size is different. Reference numeral 15 denotes a substantially cylindrical supporting portion extending upward from the lower end of the inclined portion 13, and the axial distance of the supporting portion 15 is larger than the width of the bead C. As a result, when the storage holders 11 are sequentially stacked upward with the lower end of the support portion 15 abutting on the upper end of the support portion 15, a space 16 is formed between the adjacent storage holders 11. The beads B with filler stored in the storage holders 11, that is, the beads C mounted on the mounting portion 14 and the inclined portions
Filler F arranged to surround the outside of 13
Located within 16. The storage holders 11 are stacked in a plurality of stages on a vertically movable mounting table (not shown) in a state where the beads B with filler are mounted thereon, and constitute a mountain 18.

A horizontal frame 22 is provided above the peak 18, and a vertical cylinder 23 is mounted on the frame 22. The cylinder 23 has a vertically extending piston rod 24, which is coaxial with the axis of the storage holder 11 forming the peak 18. Further, a sleeve 25 coaxial with the piston rod 24 is fixed to a lower end portion (tip portion) of the piston rod 24. The above-described piston rod 24 and sleeve 25 as a whole constitute an elevating shaft 26 extending in the vertical direction. The elevating shaft 26 moves up and down by the operation of the cylinder 23.

Reference numeral 30 denotes a horizontal disk-shaped support, and a cylindrical body 31 is fixed to the center of the support 30. A spherical joint 32 having a spherical outer surface is provided on the outer periphery of the lower end of the sleeve 25.
The inner member 33 that forms part of is fixed, while the cylindrical body
An outer member 34, which forms a part of a spherical joint 32 whose inner surface is spherical, is fixed to the inner periphery of 31. The inner member 33 is housed in the outer member 34 such that the outer surface of the inner member 33 comes into spherical contact with the inner surface of the outer member 34, whereby the support 30 is connected to the lifting shaft 26 via the spherical joint 32. As a result, the support 30 can be swung to some extent by the spherical joint 32. At the radially outer end of the support 30, a plurality of permanent magnets 37 are embedded and fixed as a plurality of attractants, and these permanent magnets 37 attract a bead C placed on the uppermost storage holder 11. can do. These permanent magnets 37 are arranged on a circle centered on the elevating shaft 26 and having a radius of curvature substantially equal to the radius of curvature of the bead C. Further, in this embodiment, the permanent magnets 37 are arranged on a plurality of circles having different diameters, here, two kinds of circles. As a result, a plurality of (two kinds) fillers having different diameters are formed by the permanent magnets 37. The bead C of the attached bead B can be held by suction.

A triangular plate-shaped horizontal movable body 41 is provided above the support 30. The sleeve 25 is loosely fitted in the center of the movable body 41. A plurality of vertically extending guide rods 42 are fixed to the upper surface of the movable body 41, and upper end portions of these guide rods 42 are slidably inserted into a cylindrical guide 43 fixed to the frame 22. As a result, the movable body 41 can move in the axial direction of the elevating shaft 26. A ring-shaped spring receiver 44 is fixed to the outer periphery of the sleeve 25 above the movable body 41.
A spring 45 for urging the movable body 41 downward is interposed between the movable body 41 and the movable body 41. Also, this movable body
The cylindrical body 31 located below the lower part 41 also plays a role as a stopper that determines the limit of the downward movement of the movable body 41. A plate-like guide 47 extending vertically extends through a hole 46 formed in the support 30 on the lower surface near each vertex of the movable body 41, and each guide 47 is disposed radially outward of a lower end portion. Inclined surface inclined radially outward as going upward
Has 48. And, the vertical axis from the upper end of these inclined surfaces 48
The radial distance to the center of 26 is substantially equal to half the inner diameter of the mounting portion 14 of the storage holder 11, and as a result, the movable body 41
When the guide body 47 is inserted into the storage holder 11 by lowering, the storage holder 11 is pushed by the inclined surface 48 of the guide body 47, and is centered at a regular position. The guide body 47 has a horizontal surface 49 which is continuous with the upper end of the inclined surface 48 and extends radially outward from the upper end. Then, the horizontal surface 49 of the guide body 47 can engage with the upper surface of the mounting portion 14 of the storage holder 11 when the movable body 41 is lowered.

Next, the operation of the embodiment of the present invention will be described. Now, it is assumed that a plurality of storage holders 11 on which the beads B with filler are respectively placed on the placement unit 14 are stacked to form a peak 18, and the peak 18 is placed on the placing table. At this time, the piston rod 24 of the cylinder 23
Is retracted, and the support 30 and the movable body 41 are waiting at the ascending limit. Next, the cylinder 23 operates to project the piston rod 24, and the elevating shaft 26, the support 30, and the movable body 41 descend integrally. During this lowering, first, the guide body 47 enters the uppermost storage holder 11, but at this time, the inclined surface 48 of the guide body 47 engages with the inner periphery of the mounting portion 14 and the uppermost The storage holder 11 is pushed back toward the normal position, and the storage holder 11 is centered with respect to the permanent magnet 37. In addition, by the centering operation of the storage holder 11, even if the mountain 18 is inclined, the mountain 18 is corrected and becomes in an upright state. When the piston rod 24 further projects in this state,
The horizontal surface 49 of each guide body 47 comes into contact with the upper surface of the uppermost storage holder 11, but the piston rod 24 further projects after the horizontal surface 49 comes into contact with the upper surface of the mounting portion 14 as described above. 41 moves upward with respect to the elevating shaft 26. As a result, the spring 45 is compressed and deformed, and the spring 45 stores an elastic force. And this spring
The elastic force stored in 45 is applied to the guide body 47 as an urging force, and the uppermost storage holder 11 is provided by the guide body 47.
Is strongly pressed against the second-stage storage holder 11.

The protrusion of the piston rod 24, that is, the lowering of the elevating shaft 26 and the support 30 causes the permanent magnet 37 of the support 30 to move downward.
Reaches just above the bead C placed on the uppermost storage holder 11, and stops here when it comes into contact with the bead C. As a result, the bead B with the filler is attracted to the permanent magnet 37, but the bead B with the filler is not placed on the uppermost storage holder 11 in a regular posture, and is slightly inclined with respect to the horizontal. Bead C
May be attracted to the permanent magnet 37 and the attraction force for removal may be insufficient. Therefore, in this embodiment, the elevating shaft 26 and the support 30 are connected via the spherical joint 32, and the support 30 can be swung to some extent. As a result, when the support 30 comes into contact with the bead C, the support 30 is swung so as to have the same inclination as the posture of the bead B with filler,
The permanent magnet 37 attracts the bead C over the entire circumference.

Next, the cylinder 23 is operated to retract the piston rod 24, and the elevating shaft 26 and the support 30 are raised. As a result, the bead with filler B rises while being attracted to the permanent magnet 37 and is taken out of the uppermost storage holder 11. At this time, the permanent magnet 37 attracts the bead C over the entire circumference as described above. Removal is ensured. In addition, at this time, the guide holder 47 receiving the urging force of the spring 45 as described above
Since 11 is pressed against the second-stage storage holder 11, even if the bead B with the filler to be taken out is deformed and a part of the bead B with the uppermost storage is adhered, the bead B with the filler is still in the uppermost stage. Is reliably separated from the storage holder 11 and the take-out is ensured. In addition, since the two effects described above can be achieved only by the guide member 47, the structure is simplified. When the support 30 rises by a predetermined amount and the movable body 41 comes into contact with the upper surface of the cylindrical body 31, the support 30 and the movable body 41 rise integrally.

[0017]

As described above, according to the present invention, even when the bead with filler is not placed on the storage holder in a proper posture, the bead with filler can be spread over the entire circumference by the adsorbent. It can be taken out by suction.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 11 ... storage holder 18 ... mountain 26 ... elevating shaft 30 ... support 31 ... stopper 32 ... spherical joint 37 ... adsorbent 41 ... movable body 45 ... spring 47 ... guide body 48 ... inclined surface 49 ... horizontal surface B ... bead with filler

Continuation of the front page (56) References JP-A-2-175235 (JP, A) JP-A-59-115831 (JP, A) JP-A-59-115830 (JP, A) JP-A-62-159622 (JP , U) Patent 2754258 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B29D 30/00-30/72 B65G 57/00-57/32 B65G 59/00-59/12

Claims (3)

(57) [Claims] A filler bead take-out device for sequentially taking out filler-filled beads from the uppermost stage of a mountain, which is formed by stacking a plurality of hollow truncated cone-shaped storage holders on which filler-filled beads are placed, and An elevating shaft that can be extended and lowered, a substantially horizontal support connected to the elevating shaft, and an adsorbent that can be attached to the support on a circle centered on the elevating shaft and that can adsorb beads with filler, A take-out device with a filler, characterized in that the lifting shaft and the support are connected by a spherical joint so that the support can be slightly swung. A movable member movable in the axial direction of the elevating shaft, a spring for urging the movable member downward, and a movable member provided below the movable member to determine a limit of downward movement of the movable member. A stopper, which is attached to the movable body, has a slope which is inclined outward in the radial direction toward the outside in the radial direction and can be engaged with the inner surface of the upper end portion of the storage holder, and which is connected to the upper end of the inclined surface and has the storage holder. The bead removal device with filler according to claim 1, further comprising: a guide body having a horizontal surface engageable with the upper surface of the bead. 3. An apparatus for taking out a bead with a filler according to claim 1, wherein said adsorbent is mounted on a plurality of circles centered on an elevating shaft so that a plurality of types of beads with a filler can be adsorbed.