JP4586735B2 - Parts alignment supply device - Google Patents

Description

  The present invention relates to a component aligning and supplying apparatus for aligning and transferring randomly supplied components in a certain direction.

  As shown in FIG. 1, a conventional component aligning and supplying apparatus 1 generally stores an aligning unit 2 for transferring components in a line, an aligning driving unit 3 for vibrating the aligning unit 2, and a large number of components. The storage part 4 that can be used, the lifter part 5 that is interposed between the storage part 4 and the alignment part 2, receives parts from the storage part 4 and supplies the parts to the alignment part, and vibrates the bottom part of the storage part 4 A transport drive unit 6 is provided for transferring parts from the storage unit to the lifter unit 5.

  The volume of the reservoir 3 of the conventional parts alignment and supply apparatus 1 is generally small because it is difficult to increase the depth of the reservoir 3 due to restrictions on the movement stroke of the lifter. Although not shown in the figure, a system is adopted in which a hopper is attached above the storage part 4 and the parts are supplied from the hopper to the storage part 3 when the number of parts in the storage part decreases. For this reason, there is a problem that the total height of the apparatus increases due to the provision of the hopper. On the other hand, when the depth of the storage unit 3 is increased, there is a problem that the moving stroke of the lifter 5 increases and the driving force also increases.

  On the other hand, Patent Document 1 discloses an apparatus that can raise and lower the bottom of a storage unit according to the amount of components (in this case, reinforcing bars) in the storage unit. Even when the amount of parts is reduced by raising and lowering the bottom part in this way, the parts can be discharged from the storage part, but the bottom part is raised and lowered by a hydraulic cylinder arranged directly below the storage part. In order to increase the depth of the part, it is necessary to increase the overall height of the apparatus.

Japanese Utility Model Publication No. 4-94332

  In view of the above points, the present invention increases the depth of the reservoir by increasing the depth of the reservoir without increasing the stroke of the lifter and without increasing the overall height of the device. For the purpose.

The component alignment supply apparatus according to claim 1 of the present invention includes a storage unit (30) capable of storing a large number of components (20),
An alignment section (40) for aligning and transferring the parts (20);
A lifter unit that is interposed between the storage unit (30) and the alignment unit (40) and that can receive the component (20) from the storage unit (30) and supply the component (20) to the alignment unit (40). 50),
A vibration generator (60) for vibrating the alignment portion (40) to align and transfer the parts (20) on the alignment portion (40);
In the component alignment and supply device (10) in which the component (20) loaded in the storage unit (30) is discharged and moved to the lifter unit (50) by gravity.
The storage part (30) has a part loading surface (33) on which the part (20) is loaded, and a bottom part (32) that can be raised and lowered, and a bottom part support means (120) for supporting the bottom part (32) so that it can be raised and lowered. And
The bottom support means (120) includes at least three wires (121) having one end connected to the bottom (32), a pulley (122) supporting each wire (121), and the other of the wires. Spring (123: 128) connected directly or indirectly to the end of the spring, and the spring force generated by the deflection of the spring (123: 128) is the bottom (32) and the component (20) loaded thereon When the load is increased or decreased by increasing or decreasing the number of parts (20) in the reservoir, the spring force is increased or decreased in response to the increase or decrease of the load. changes to so as to balance the load and the increase or decrease, at least three wires (121), and pulleys (122), a spring (123: 128) is arranged It is characterized by being continued.

  In the first aspect of the present invention, the spring may be disposed laterally away from the lifting path of the bottom portion of the storage portion by raising and lowering the bottom portion of the storage portion (30) and using a wire and a pulley. By making it possible, the depth of the storage portion can be increased without increasing the stroke of the lifter portion and without increasing the overall height of the apparatus. In addition, since the main component of the bottom support means is a spring, the bottom lifting mechanism is simple and does not require power for lifting.

In the component alignment supply device according to claim 2, the bottom support means (120) further includes a weight (124), and a load by the weight (124) acts upward on the bottom (32) and a spring ( 123: 128), the wire (121), the pulley (122), the spring (123: 128), and the weight (124) are arranged and connected so as to act in the direction of releasing the deflection. .

  According to the second aspect of the present invention, since the load to be borne by the spring is reduced, the spring constant of the spring can be reduced. As a result, a spring that is generally small and inexpensive can be used.

  According to a third aspect of the present invention, the spring comprises a tension coil spring (123).

  The component alignment and supply device according to claim 4, wherein the spring comprises a compression coil spring (128), and the weight (124) compresses the compression coil spring (128) when the weight (124) rises. Yes.

  In the component alignment supply device according to the fifth aspect, the component loading surface (33) is an inclined surface whose maximum inclined line extends toward the lifter portion (50).

  According to the fifth aspect of the present invention, movement of parts from the storage portion to the lifter portion is facilitated particularly when the bottom portion is at its upper limit position.

  In the component alignment supply device according to claim 6, the component loading surface (33) is configured by a plurality of polygonal inclined surfaces, and the component (20) loaded on the plurality of inclined surfaces flows down the inclined surfaces, The plurality of maximum inclined lines of the plurality of inclined surfaces have at least two directions so as to gather in a limited range on a part of the component loading surface (33) adjacent to the lifter portion (50). It is characterized by that.

  According to the sixth aspect of the present invention, the components on the component loading surface can be concentrated in accordance with the position of the component discharge opening from the storage portion to the lifter portion.

  In the component alignment supply device according to claim 7, a return slope (110) is provided that can receive the component (20) dropped from the alignment portion (40) and return it to the storage portion (30) by gravity. It is characterized by.

  According to the seventh aspect of the present invention, it is possible to recover the parts dropped from the alignment portion without power.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in the Example mentioned later.

  In the following, an embodiment of a component alignment and supply apparatus according to the present invention will be described with reference to the drawings. FIG. 2 is a front view, FIG. 3 is a plan view, and FIG. 4 is a right side view. In FIG. 2, the lifter unit 50 and the storage unit 30 are shown in cross section in order to clearly show the inside of the lifter unit 50 and the storage unit 30 described later.

  The component alignment supply device 10 includes a storage unit 30 that can store a large number of components 20 that are generally doughnut-shaped toruses, an alignment unit 40 that aligns and transfers the components 20, and a storage unit 30 and an alignment unit 40. It is mainly composed of a lifter unit 50 that receives the component 20 from the storage unit and supplies the component 20 to the high-order alignment unit 40, and a vibration generator 60 that vibrates the alignment unit 40. The apparatus 10 has a base 70 at the bottom thereof. The storage part 30, the lifter part 50, the vibration generator support plate 80 supporting the two vibration generators 60, and the vibration generator 60 are provided on the base 70. The control panel 100 for controlling the operation of the lifter unit 50 is fixed, and a foot 90 in contact with the floor surface or the base surface is provided below the base 70.

  The alignment portion 40 includes a straight groove-shaped component passage 41 having a width corresponding to the outer dimension of the component 20. When the alignment unit 40 receives vibration from the vibration generator 60, the components 20 on the alignment unit are aligned in a predetermined direction in the component passage 41 and transferred to the left in FIG. It is configured to spill from the component passage 41. Therefore, a return slope 110 for receiving the spilled component 20 and returning it to the storage unit 30 is provided adjacent to the alignment unit 40. Since the return slope 110 has a slope that is lowered toward the storage portion and communicates with the storage portion 30, the component 20 on the return slope 110 flows down toward the storage portion 30 due to gravity and is collected.

The lifter unit 50 includes a hydraulic cylinder 53 having a lifter rod 51 and a main body 52 that move up and down by hydraulic pressure, a lifter component transport unit 54, and a lifter passage 55 that guides the lifter component transport unit 54. The lifter component transport unit 54 is coupled to the tip of the lifter rod 51 and moves with the lifter rod 51 between the lifter lower limit position LL ₅₀ and the lifter upper limit position UL ₅₀ positioned above the alignment unit 40 with a stroke S ₅₀ . And the component 20 can be loaded. Further, the lifter component transporting portion 54 is inclined low toward the side closer to the aligning portion 40 so that the component 20 falls on the aligning portion 40 when raised above the aligning portion 40. The lifter passage 55 is a passage having a rectangular cross section formed by four wall surfaces 55a, 55b, 55c, and 55d. Wall 55a bounding the reservoir 30 out of the four walls, that generally in the upper half, exactly above the lifter lower limit position LL ₅₀ of the lifter component conveyance unit 54 is, component 20 from the reservoir 30 It opens by the component discharge | emission opening 34 of the storage part 30 so that it can collapse to the lifter component conveyance part 54. FIG. The position of the lower end of the component discharge opening 34 is substantially the same height as the lifter lower limit position UL ₅₀ . Further, the wall surface 55b on the side adjacent to the alignment portion 40 of the four walls, as aligned side parts 20 to flow down when the lifter component conveyance unit 54 reaches the lifter upper limit position UL _50, the lifter upper It is not formed above the portion corresponding to the position UL ₅₀ . The main body 52 of the hydraulic cylinder 53 is fixed to a wall surface 55c facing the wall surface 55a that forms a boundary with the storage unit 30 with bolts (not shown).

A shutter plate 56 extends downward from a side of the generally rectangular lifter component transporting part 54 adjacent to the component discharge opening 34. The shutter plate 56, because it is coupled to the lifter component conveyance unit 54 to move up and down together with the lifter component conveyance unit 54, by closing the component discharge opening 34 even when the lifter component conveyance unit 54 is in the lifter upper limit position UL ₅₀ This is to prevent the component 20 from entering the lifter passage 55 from the storage unit 30. Accordingly, the length of the shutter plate 56 is set so that the component discharge opening 34 is blocked by the shutter plate 56 even when the lifter component transporting portion 54 is at the lifter upper limit position UL ₅₀ . The width of the shutter plate 56 is set wider than the width of the component discharge opening 34 so that the component discharge opening 34 can be closed.

  The storage unit 30 is disposed on the base 70 of the apparatus 10 adjacent to the lifter unit 50. The reservoir 30 includes four upstanding side portions 31a, 31b, 31c, 31d, a bottom surface 31e, and a bottom portion 32 disposed on the bottom surface 31e. The shape of the storage portion is a substantially rectangular parallelepiped having a space for accommodating the component 20 therein, and the upper surface thereof is open to put the component 20 into the storage portion 30. A part of the outer surface of the side surface portion 31a that forms the boundary with the lifter portion 50 forms the lifter wall surface 55a. Accordingly, the side surface portion 31 a is opened by the component discharge opening 34. The bottom portion 32 of the storage portion can move up and down in the space, and FIG. 2 shows a state in which the bottom portion 32 is at its upper limit position, and the lower limit position of the bottom portion 32 is indicated by a two-dot chain line in FIG. Has been.

  In the present embodiment, the bottom portion 32 is formed of a steel plate and has a component loading surface 33 on which the component 20 is placed and four side surfaces extending downward from four sides of the component loading surface 33. A minute gap is provided between the four side surfaces of the bottom portion 32 and the inner surfaces of the side surface portions 31a, 31b, 31c, and 31d in order to make the bottom portion move smoothly. Rather than being a horizontal flat surface, the component stacking surface 33 is preferably an inclined surface having an angle θ and lowly inclined toward the lifter unit 50 as shown in FIG. Further, the bottom portion 32 is supported by a bottom portion support means 120 including four wires 121, four pulleys 122, three tension coil springs 123, and one weight 124 so as to be movable up and down. The spring 123 and the weight 124 are disposed outside the side surface portion 31 b on the opposite side to the lifter portion 50.

J-shaped hooks are fixed to one end of each of the four wires by wire clips (not shown), and eyebolts are fixed to the four corners of the component stacking surface 33. The bottom 32 is suspended from above by hooking the hook of the wire to the eyebolt. The four pulleys are provided above the eyebolts. Of the four wires, the two wires closer to the lifter section 50 are the first wire 121 ₁ and the second wire 121 ₂ , and the two wires closer to the spring are the third wire 121 ₃ and the fourth wire. wire 121 _4, likewise two pulleys first pulley 122 ₁ and the second pulley 122 _{and second} side closer to the lifter 50, and the side of the pulley near the spring and the third pulley 122, _third and fourth pulley 122 ₄ In other words, the first wire 121 ₁ and the second wire 121 ₂ extend upward from the eyebolts to reach the first pulley 122 ₁ and the second pulley 122 ₂ , and are turned to the right in FIG. 2 by these pulleys. Extend to the third pulley 122 ₃ and the fourth pulley 122 ₄ where the direction is changed downward. The third wire 121 ₃ and the fourth wire 121 ₄ extend upward from the respective eyebolts and extend to the third pulley 122 ₃ and the fourth pulley 122 ₄ where the direction is changed downward. The pulley is composed of an immovable mandrel fixed to the side surface portion of the storage portion and a grooved wheel that has a groove that supports the wire and is rotatable. The first pulley 122 ₁ and the second pulley 122 ₂ is a side section 31c, a mandrel 122a1 and 122a2 respectively fixed to 31d, comprising respectively a sheave 122b1 and 122B2, the third pulley 122, _third and fourth pulleys 122 ₄ includes a common mandrel 122a ₃₄ that extends between the side portions 31c and 31d and is fixed to the side portion, and groove wheels 122b ₃ and 122b ₄ . Since the third pulley and the fourth pulley groove 122b ₃ and 122b ₄ support the first wire 121 ₁ and the third wire 121 ₃ , the second wire 121 ₂ and the fourth wire 121 ₄ of two wires, respectively. , Each having two grooves.

  In this embodiment, the weight 124 is made of iron, the weight of which is the weight of the bottom 32 of the reservoir, and the weight of the component 20 that is expected to remain in the reservoir when the bottom 32 is in its upper limit position. Is approximately equal to the combined weight. Further, the weight 124 is a substantially rectangular parallelepiped horizontally long, and rods 125 for hooking wires are provided at both ends in the horizontal direction, and the lower surface of the rectangular parallelepiped has an upper portion of the spring. A spring mounting portion 126 having three holes for hooking the ends of the spring is formed. The other end of the first and third wires is connected to the rod 125 at the left end in FIG. 3 of the weight 124 in the horizontal direction, and the right end in FIG. 3 at the other in the horizontal direction. The second and fourth wires are connected to the rod 125. A loop larger than the diameter of the rod 125 for passing the rod 125 is formed at the other end of each wire using a wire clip (not shown). Both end portions of each tension coil spring 123 are formed in a hook shape, and the upper end portions thereof are respectively hooked in the three holes of the weight 124 as described above. The lower ends of the tension coil springs 123 are respectively hooked into three mounting holes provided in the spring mounting plate 71 coupled to the base 70 of the device 10.

  Since the bottom part support means 120 is comprised and arrange | positioned as mentioned above, it supports the bottom part 32 of a storage part so that raising / lowering is possible as follows.

  In the state where the number of parts 20 of the storage part 30 is the smallest, the bottom part 32 of the storage part is in its upper limit position, and at that time, the tension coil spring 123 is in a state where the amount of deflection is the smallest. Next, when the component 20 is thrown into the storage portion 30 and the load applied to the bottom portion 32 increases, the bottom portion 32 gradually moves downward, and the three tension coils connected to the weight 124 and the weight 124 by four wires. The upper end of the spring 123 is pulled up to extend the spring. If the friction in the pulley, the friction between the bottom 32 and the side portions 31a, 31b, 31c, 31d, and the weight of the wire are not taken into consideration, the first load obtained by adding the weight of the component to the weight of the bottom, The bottom 32 moves downward until the weight of the weight 124 equals the second load obtained by adding the force acting downward on the weight 124 due to the extension of the three tension coil springs 123.

  In a state where a predetermined maximum number of parts 20 are stored in the storage unit 30, the bottom 32 is in its lower limit position indicated by a two-dot chain line in FIG. 2, and the tension coil spring 123 has a deflection amount thereof. It is in the most state. In addition, since some of the components loaded in the storage unit collapse and move from the component discharge opening 34 onto the lifter transport unit 54, if the component 20 in the storage unit decreases due to such movement, it increases. Similarly, the bottom 32 continues to move upward until the first load and the second load are equal.

  The operation of the component alignment and supply apparatus 10 having the bottom 32 of the storage unit that moves in this way will now be described.

FIG. 2 shows a state where the bottom portion 32 of the storage portion is in the vicinity of the upper limit position thereof, the lifter component conveyance portion 54 is at the lifter lower limit position LL ₅₀ , and the component 20 is placed on the lifter component conveyance portion 54. Components 20 are loaded in the storage unit, and these components 20 exert pressure on the four side surfaces 31a, 31b, 31c, 31d of the storage unit 30 based on the weight of the component 20 itself. However, since the component discharge opening 34 is provided in the side surface portion 31a that forms a boundary with the lifter portion 50 among the four side surface portions, a part of the component 20 passes through the opening portion to be a lifter component. It collapses to the conveyance part 54, As a result, it will be in the state shown by FIG. In addition, it is preferable that the quantity of the components 20 thrown into the storage part 30 is an amount smaller than an amount necessary for positioning the bottom portion 32 at the lower limit position. Actually, before the bottom portion 32 reaches the lower limit position, It is preferable to stop the charging.

The alignment unit 40 is provided with a sensor (not shown) that detects the amount of components aligned in the alignment unit 40. When the amount of components in the alignment unit 40 is smaller than a predetermined amount, the alignment unit 40 is based on a signal from the sensor. Thus, the control sequence is constructed so that the lifter component conveying unit 54 moves up. Accordingly, the lifter component transport unit 54 on which the component 20 that has collapsed from the storage unit 30 moves upward and stops at the lifter upper limit position UL _{50 when} the component amount of the alignment unit 40 decreases. As described above, the lifter component transporting portion 54 is inclined so as to be lowered toward the alignment portion 40, so that the lifter component transporting portion 54 reaches the lifter upper limit position UL ₅₀ and the lifter passage 55 is on the alignment portion side. When the wall surface no longer exists, the component 20 on the lifter component conveying portion 54 flows down to the aligning portion 40. Further, at this time, the component discharge opening 34 is closed by the shutter plate 56 integral with the lifter component transport unit 54, so that the component 20 in the storage unit does not enter the lifter passage 55.

  A part of the component 20 that has flowed down toward the alignment unit 40 falls without being received by the alignment unit 40 and is received by the return slope 110 provided around the alignment unit 40, and is also received by the alignment unit 40. Of the parts 20 that are not properly aligned, the parts 20 that have not been correctly aligned fall from the alignment unit 40 and are received by the return slope 110 when they are subjected to vibration. The component 20 received by the return slope 110 slides on the slope 110 and returns to the storage unit 30 to be collected.

  The parts 20 aligned by the alignment unit 40 are moved toward the front end of the alignment unit 40 by vibration received from the vibration generator 60 and supplied, for example, to an assembly line operator.

On the other hand, the lifter component transport unit 54 that has moved to the lifter upper limit position moves downward and stops at the lifter lower limit position LL ₅₀ after the time necessary for the component 20 to descend onto the alignment unit 40 has elapsed. At this time, the component discharge opening 34 is also opened from the top as the lifter component conveying portion 54 moves downward. Therefore, when the lifter component conveyance unit 54 approaches the lifter lower limit position LL _50, or component 20 to the lifter component conveyance unit 54 again mountain is collapsed part 20 and reaches the lifter lower limit position LL ₅₀ from reservoir 30 starts to ride. As the component 20 moves from the storage unit 30 to the lifter component conveying unit 54, the bottom 32 starts to move upward because the weight of the component 20 on which it is placed decreases, and the component 20 continues to move. Since the lateral pressure due to the weight of the component 20 is received also on the wall surface of the passage 55, the movement of the component 20 is stably stopped in a state where there is a mountain of the component 20, and the rise of the bottom 32 is also stopped accordingly.

The lifter component transport unit 54 stands by at the lifter lower limit position LL ₅₀ with the component 20 placed thereon, and ascends again when the control panel 100 issues an ascent command. In this way, the above-described operation is repeated, and the component 20 moves from the storage unit 30 to the alignment unit 40 via the lifter unit 50. In addition, the bottom 32 finally reaches the upper limit position, and most of the components 20 thrown into the storage unit 30 are moved to the lifter component transport unit 54. From the viewpoint of effective use of the storage unit volume, it is preferable that all the parts 20 are moved to the lifter part when the bottom 32 is in the upper limit position, and no parts 20 remain in the storage part. When the bottom portion 32 is at the upper limit position, there is no problem even if some of the components 20 remain in the storage portion 30, and the bottom portion 32 is also at the upper limit position for replenishment of the components 20 to the storage portion 30. You can go before you reach it.

Next, a second embodiment in which the component support means does not have a weight will be described with reference to FIG. This embodiment is different from the first embodiment in that a single spring hook rod 127 is provided instead of the weight. A first wire 121 ₁ and a third wire 121 ₃ are connected to one end of the spring hook rod 127, and a second wire 121 ₂ and a fourth wire 121 ₄ are connected to the other end of the rod 127, Three hooks of tension coil springs 123 are hooked on the part.

  The force that must be generated by the three tension coil springs 123 in the second embodiment needs to compensate for the weight of the weight of the first embodiment, and is used in the first embodiment. The spring constant is larger than that of the tension coil spring, and the deflection amount of the spring is set larger.

Examples modification of the second embodiment, without spring hooking rod, the upper hook direct two extension coil springs first wire 121 ₁ and the third wire 121 ₃ and the second wire 121 _second and fourth respectively connected to the other end of the wire 121 _4, it is also possible to configure the bottom supporting means hooked to the underside of the hook into the mounting hole of the spring mounting plate.

Next, FIGS. 6 and 7 show a third embodiment in which the bottom support means includes a compression coil spring 128 instead of the tension coil spring. In this embodiment, the bottom support means 120 includes a weight 124. The weight 124 is a substantially rectangular parallelepiped, and eyebolts 129 are attached to both ends in the horizontal direction. The first wire 121 ₁ and the third wire 121 ₃ , and the second wire 121 ₂ and the fourth wire are attached to the eyebolts 129 at both ends. 121 ₄ are connected to each other, and the weight 124 is suspended by a wire. A J-shaped hook (not shown) is fixed to the end of each wire, and each wire is connected to a weight by hooking the hook on the eyebolt. Further, the upper surface of the rectangular parallelepiped of the weight 124 has a diameter slightly larger than the outer diameter of the compression coil spring 128 and a depth about three times the diameter to accommodate the lower end of the compression coil spring 128. Three spring lower end support holes are provided. Further, guide rods 130 are respectively provided at both end portions of the weight 124, and guide plates 35 having elongated guide holes 35a for guiding the guide rods 130 are fixed to the side portions 31c and 31d of the storage portion. .

  A spring holding block 36 is fixed to the upper portion of the outer surface of the side surface portion 31b of the storage portion by a bolt (not shown). In the spring holding block 36, three spring upper end support holes having the same shape are formed at positions facing the lower end support holes formed in the weight 124. The compression coil spring 128 has its lower end inserted into and supported by the lower end support hole of the weight 124, and its upper end inserted into and supported by the upper end support hole of the spring holding block 36. Therefore, the upper end portion of the compression coil spring 128 does not move, but the lower end portion moves with the vertical movement of the weight 124. The compression coil spring 128 is compressed by the weight 124 when the bottom 32 of the reservoir moves downward and the weight 124 moves upward, and the spring expands when the weight 124 moves downward.

  As in the case of the first embodiment in which the spring is a tension coil spring, if the weight of the wire, the friction of various parts, and the weight of the spring are not taken into consideration, the stationary condition of the bottom 32 of the reservoir is The first load obtained by adding the weight of the component to the weight of the bottom of the storage portion and the force acting downward on the weight 124 due to the compression of the three compression coil springs 128 are added to the weight of the weight 124. The second load is equal. Since the bottom support means in the third embodiment is configured in this way, it responds to the increase or decrease in the weight of the parts loaded on the bottom 32 in the same manner as the bottom support means in the first embodiment. The bottom 32 is supported.

  Next, FIG. 8 is a plan view of the bottom portion 32, and FIG. 9 is an XX cross-sectional view of FIG. Description will be made with reference to FIG. 10 which is a YY sectional view. In these drawings, eyebolts for attaching wires are not drawn in order to clarify the shape of the component loading surface.

  In order to further promote the movement of the component 20 from the storage unit 30 to the lifter component transporting unit 54, the component loading surface 33 at the bottom of the storage unit is configured with a plurality of inclined surfaces, for example, three inclined surfaces, instead of a single inclined surface. May be. The component loading surface 33 shown in FIG. 8 includes three inclined surfaces 33a, 33b, and 33c, and the three inclined surfaces 33a, 33b, and 33c have a quadrangular shape or a trapezoidal shape, and their respective inclination angles θa, θb. , Θc and maximum inclination lines La, Lb, Lc. The slope 33a is trapezoidal, and a side 33as corresponding to the upper base of the trapezoid and having a width W faces the component discharge opening 34 (not shown) and is positioned at the lowest position on the component loading surface 33. Yes. The inclined surface 33a is inclined at an inclination angle θa so that the maximum inclined line La extends in a direction substantially orthogonal to the opening surface of the component discharge opening 34. The slope 33b is a quadrangle, and is located above the slope 33a as viewed in FIG. 8, and has a direction in which the maximum slope line Lb is substantially perpendicular to the maximum slope line La of the slope 33a, and the slope angle of the slope 33a. It is inclined at an inclination angle θb larger than θa. The slope 33c is trapezoidal, and the side corresponding to the upper base of the trapezoid is in contact with the side corresponding to the lower base of the trapezoid of the slope 33a, and the hypotenuse is in contact with one side of the slope 33b. The slope 33c is inclined at an inclination angle θc whose maximum inclination line Lc extends parallel to the maximum inclination line La of the inclination 33a and is larger than the inclination angle θa of the inclination 33a.

  Since the component stacking surface 33 is formed as described above, not only the component 20 placed on the slopes 33a and 33c but also the component 20 placed on the slope 33b is located on the side 33as of the slope 33a facing the component discharge opening 34. Get together.

  In this modification, the component loading surface 33 composed of three slopes is shown. For example, by integrating the slopes 33a and 33c into one slope by equalizing their inclination angles θa and θc, It is obvious that the component loading surface 33 can be composed of two slopes. In addition, the construction of the two slopes also provides the effect that all the parts loaded on any part described above are gathered on the side 33as of the slope 33a facing the parts discharge opening 34. Note that the slopes 33a, 33b, and 33c of the component loading surface 33 of the modified example shown in FIG. 8 are formed by welding steel plates.

  Although the number of wires of the bottom support means in the above-described embodiment is four, the bottom support means of the present invention can be constituted by three wires. In the case of three wires, if the center of the distributed load due to the component weight acting on the component loading surface at the bottom is included in the triangle connecting the three wire attachment portions on the component loading surface, the bottom is It is possible to move up and down stably. Further, the number of weights is not limited to one shown in the above-described embodiment. For example, the weight is composed of a main heavy weight and a plurality of relatively light weights for load adjustment. A light weight can be added to the main weight.

  Further, in the above-described embodiment, the component loading surface at the bottom of the storage portion is an inclined surface. In the case where the remaining in the storage unit is allowed, the component loading surface may be a horizontal plane.

  Furthermore, in the above-described embodiment, the spring is vertically disposed outside the side surface portion 31b of the storage portion. However, the spring can be disposed horizontally outside the side surface portion 31c and / or 31d by increasing the number of pulleys. For example, the location and direction of the spring of the present invention are not limited to the above-described embodiments.

It is a front view of the conventional component alignment supply apparatus. It is a front view of the components alignment supply apparatus of 1st Example of this invention. It is a top view of the components alignment supply apparatus shown by FIG. It is a right view of the component alignment supply apparatus shown by FIG. It is a right view of the components alignment supply apparatus of 2nd Example of this invention. It is a right view of the components alignment supply apparatus of 3rd Example of this invention. It is a front view which shows a part of the side by which the compression coil spring of the components alignment supply apparatus shown by FIG. 6 is arrange | positioned. It is a top view of the bottom part from which a component loading surface is comprised from three slopes. It is XX sectional drawing of FIG. It is YY sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Parts alignment supply apparatus 20 Parts 30 Storage part 32 Bottom part 40 Alignment part 50 Lifter part 121 ₂ 2nd wire 121 ₄ 4th wire 122 ₂ 2nd pulley 122 ₄ 4th pulley 123 Tension coil spring 124 Weight

Claims (7)

A reservoir (30) capable of storing a large number of parts (20);
An alignment section (40) for aligning and transferring the parts (20);
Interposing between the storage part (30) and the alignment part (40), receiving the part (20) from the storage part (30) and supplying the part (20) to the alignment part (40). Lifter part (50) that can be,
A vibration generator (60) that vibrates the alignment unit (40) to align and transfer the parts (20) on the alignment unit (40);
In the component alignment and supply device (10) in which the component (20) loaded in the storage unit (30) is discharged to the lifter unit (50) by gravity and moves.
The storage part (30) has a part loading surface (33) on which the part (20) is loaded, and a bottom part (32) that can be raised and lowered, and a bottom part support means for supporting the bottom part (32) so that the part can be raised and lowered. 120),
The bottom support means (120) includes at least three wires (121) having one end connected to the bottom (32), a pulley (122) for supporting the wires (121), A spring (123: 128) connected directly or indirectly to the other end of the wire, and the spring force generated by the deflection of the spring (123: 128) is loaded on the bottom (32) and there. When the load due to the weight of the component (20) is supported and the load increases or decreases due to the increase or decrease of the component (20) in the reservoir, the deflection of the spring (123: 128) increases or decreases according to the increase or decrease of the load. The spring force changes to balance the increased or decreased load, so that the at least three wires (121), the pulley (122), and the sp Ring (123: 128), characterized in that is connected is disposed, component alignment feeder (10). The bottom support means (120) further includes a weight (124), and the load by the weight (124) acts upward on the bottom (32) and releases the deflection of the spring (123: 128). The wire (121), the pulley (122), the spring (123: 128), and the weight (124) are arranged and connected so as to act in a direction to move. Component alignment supply device (10).   3. The component alignment supply device (10) according to claim 1 or 2, characterized in that the spring comprises a tension coil spring (123).   The component according to claim 2, characterized in that said spring comprises a compression coil spring (128), said weight (124) compressing said compression coil spring (128) when said weight (124) is raised. Alignment feeder (10).   5. The component alignment according to claim 1, wherein the component loading surface (33) is an inclined surface whose maximum inclination line extends toward the lifter part (50). Supply device (10).   The component loading surface (33) is composed of a plurality of polygonal inclined surfaces, and the components (20) loaded on the plurality of inclined surfaces flow down the inclined surfaces, so that the lifter portion of the component loading surface (33) The plurality of maximum slope lines of the plurality of slopes have at least two directions so as to gather in a limited range on a part adjacent to (50). The parts alignment supply apparatus (10) as described in any one of Claims.   The return slope (110) according to claim 1, further comprising a return slope (110) capable of receiving the component (20) dropped from the alignment portion (40) and returning it to the storage portion (30) by gravity. The parts alignment supply apparatus (10) as described in any one of Claims.

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