JP2014031240A - Bolt supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bolt supply device capable of stably aligning and supplying bolts of constant quality by preventing the remaining of the bolts.SOLUTION: A bolt supply device 10 includes: a collecting space 14 of a bolt B having a feeding port 13 of the bolt B at an upper part and tilting on a bottom surface 19; a dropping portion 20 configuring a lower end portion of the tilted bottom surface 19, and dropping the bolt B positioned at a lower end of the collecting space 14 beneath the collecting space 14; a flow-in space 15 arranged under the collecting space 14, and into which the bolt B dropped by the dropping portion 20 flows; and a push-out portion 16 pushing out the bolt B on the flow-in space 15 to supply to a chute portion 17 positioned under the flow-in space 15 and aligning and carrying the bolt B by the rising of a pair of long supporting portions 33.

Description

  The present invention relates to a bolt supply device.

  For example, many bolts are used in the manufacturing process of an automobile engine. As an example of the assembly work of the cam cap to the cylinder head, first, the cam cap is attached to the cylinder head with the bolt inserted into the bolt insertion hole of the cam cap, and then the bolt is tightened to tighten the cam. The cap is fixed to the cylinder head. At this time, it is very cumbersome and troublesome for the operator to take out the bolts loaded in disordered orientation in the bolt box one by one and insert them into the bolt insertion holes of the cam cap. Normally, bolts are aligned and supplied using a bolt supply device, and the aligned and supplied bolts are inserted into the bolt mounting holes of the cam cap.

  As this type of bolt supply device, a vibration-type parts feeder is generally used. However, when this type of supply device is used, wear due to remaining bolts becomes a problem. That is, when trying to align and supply bolts using a conventional vibratory parts feeder, bolts with good shape accuracy are transported without problems in a properly aligned state, but bolts with poor shape accuracy are also aligned. Since it is not preferable, it cannot be passed through the outlet (gate) of the feeder, and it is wiped off and returned to the hopper side. Since such bolts are wiped off at the gate many times and are not carried out indefinitely, they are worn by being subjected to vibration for a long time while circulating in the parts feeder. Therefore, if this passes through the gate with some time signature and is used for the tightening operation, there is a risk of causing a tightening abnormality. In addition, since this type of parts feeder is inevitably large in size, it is difficult to arrange it near the assembly line, which hinders space saving.

  Here, the following Patent Document 1 proposes a bolt supply device aiming at ensuring workability and space saving by downsizing and aligning supply without vibration.

More specifically, as shown in FIGS. 8 and 9, this bolt supply device is provided adjacent to the inside of the outer box 101 and has a box-shaped first stock portion 102 capable of stocking a large number of bolts 150 and a cross section V. The second stock part 103 having a letter shape, the elevating bottom part 104 provided in the first stock part 102 and capable of raising and lowering the entire bottom, and the downward slope inclined downward from the partition wall 103a between the first stock part 102 131 and a chute portion 109 that can be raised and lowered from a trough portion 133 at the lower end of the downflow inclined surface 131. The chute portion 109 has a parallel side plate shape that can support the head portion 150b of the bolt 150. The bolt 150 is slid on the support surface 109a and carried out to the outside.

  In addition, an inclined plate 142 that causes the bolt 150 in the first stock portion 102 to overflow to the second stock portion 103 side by a tilting operation is provided in the elevating bottom portion 104 of the first stock portion 102, so that The uppermost part of the stocked large amount of bolts 150 can be supplied to the second stock unit 103 by flowing down.

JP 2008-280150 A

  By the way, in this type of bolt supply device, it is common to throw in a large amount of bolts 150 in order to save the trouble of frequently putting in the bolts 150. The remaining amount of the bolt 150 in the stock unit 102 cannot be managed. In this case, in order to prevent the bolt from being broken, it is necessary to re-insert the bolt 150 at an early stage where the bolt 150 still remains in the first stock portion 102 to some extent. Here, while the bolt 150 is introduced from above the first stock unit 102, the flow-down supply of the bolt 150 from the first stock unit 102 to the second stock unit 103 is stocked in the first stock unit 102. Since the uppermost part of the bolt 150 overflows to the second stock part 103 side, the bolt 150 located at the lowermost part of the first stock part 102 flows down to the second stock part 103 indefinitely. I can't. In this case, the problem of remaining is caused like the vibration type parts feeder. If there is a remaining part, there is a concern about wear due to repeated collision with the newly inserted bolt 150. Therefore, even when the alignment transport method not based on the vibration type is adopted, the remaining part of the bolt 150 is a problem to be solved. It is.

  Further, in the configuration in which the uppermost part of the bolt 150 put into the first stock portion 102 is caused to flow down by overflowing the second stock portion 103 side by inclining the inclined plate 142, the plurality of bolts 150 are mutually connected. The entangled state may be supplied to the second stock unit 103 without being eliminated. In this case, it is difficult to insert the long portion 150a of the bolt 150 between the both side plates 109a provided on the chute portion 109. In some cases, a plurality of intertwined bolts 150 are caught above the chute portion 109. As a result, there is a risk of hindering the upward movement of the chute unit 109. This makes it difficult to stably align and supply the bolts 150. In the above-mentioned Patent Document 1, it is described that the entanglement between the bolts 150 can be eliminated by the raising operation of the chute unit 109 or by selecting and controlling an appropriate speed that can be supplied by the bolt 150 empirically ( (Paragraphs 0016, 0017) In practice, there are only a few cases where entanglement can be eliminated by this degree of adjustment, and drastic measures are currently required.

  In view of the above circumstances, the problem to be solved by the present invention is to provide a bolt supply device capable of stably aligning and supplying bolts of a certain quality by preventing the remaining bolts.

  The solution to the above problem is achieved by the bolt supply device according to the present invention. In other words, this apparatus has a bolt storage space having a bolt insertion port at the top, and a pair of long support portions that support the head portion in a state where the long portion of the bolt discharged from the storage space is suspended. And a chute part that conveys the bolts supported by the pair of long support parts by aligning the bolts supported by the pair of long support parts toward the lower side in the longitudinal direction of the pair of long support parts by making the support surface of the head part an inclined surface. A bottom surface constituting the storage space is inclined, constitutes a lower end portion of the inclined bottom surface, and a lowering portion for dropping a bolt located at the lower end of the storage space below the storage space; An inflow space that is arranged below the storage space and into which the bolt dropped by the lowering portion flows in, and a bolt on the inflow space are pushed out so that the extruded bolt is positioned below the inflow space. It characterized with a point, further comprising an extrusion unit for supplying to the chute section.

  Thus, in the present invention, the lower end portion of the bottom surface constituting the storage space is a throwing portion, and the bolt located at the lower end of the storage space can be dropped below the storage space by this throwing portion. It is possible to preferentially align and supply from the bolt located at the bottom. In addition, the bottom surface constituting the storage space is inclined, and the lower end portion of the inclined bottom surface is used as a lowering portion. Therefore, the bolts thrown into the storage space always reach the lowermost part, and thereafter, Dropped downward. Therefore, all the bolts thrown into the storage space can be reliably dropped without leaving the storage space. Moreover, since all the bolts dropped by the throwing portion and flowing into the inflow space can be supplied to the chute by the pushing portion, it is possible to prevent the bolts from remaining in the inflow space. Therefore, it is possible to reliably prevent the bolt from remaining in the bolt supply device.

  Further, in the present invention, by extruding the bolt on the inflow space by the extrusion portion, it is possible to supply the bolt to the chute portion, so even if there is a bolt that is still intertwined at the time of flowing into the inflow space, The entanglement can be effectively eliminated (separated) by the impact when being extruded at the extruding part, and sent to the chute part. Therefore, the bolts fed to the chute can be supported by hanging with a high probability and conveyed outside the bolt supply device in an aligned state.

  In the bolt supply device according to the present invention, the throwing portion includes a bottom portion constituting the lower end portion of the bottom surface and a side portion constituting the lower end portion of the side surface constituting the storage space. The gap formed between the lower end of the bottom surface and the rest of the bottom surface when the projecting portion is rotated downward in a direction that further tilts the bottom portion. It may be provided with a blocking portion for closing the door.

  By configuring the throwing portion in this way, only the bolt held by the throwing portion can be dropped below the storage space by the turning operation of the throwing portion. Further, by turning the throwing part in a direction that further inclines the bottom part constituting the lower end part of the bottom surface, the bolt on the storage space main body flows into the space above the throwing part while the throwing part is turning. The situation can be prevented. In addition, according to this configuration, it is possible to close a gap generated between the lower portion (the lower end portion of the bottom surface of the storage space) and the main body of the storage space (the remaining portion of the bottom surface) with the dropping operation. It is possible to prevent the side bolt from falling from the gap. In addition, since the closed portion extending in the downward direction from the upper end of the bottom portion is provided, the closed portion rises as the bottom portion starts to tilt further. Thereby, the said clearance gap can be plugged up without interruption. Therefore, it is possible to reduce the variation in the number of drops, in other words, to drop a certain number of bolts toward the inflow space with a higher probability.

  In the bolt supply device according to the present invention, the extrusion portion has a flat extrusion surface standing on the bottom surface of the inflow space, and the extrusion surface can be moved to the extrusion side end portion of the bottom surface. There may be.

  By providing the extrusion surface having the above-described configuration, the entanglement of the bolts on the inflow space can be more effectively loosened. Further, in this case, by allowing the extrusion surface to move to the extrusion side end of the bottom surface of the inflow space, it is possible to send all the bolts that have flowed into the inflow space to the chute portion.

  In addition, the bolt supply device according to the present invention may further include a control unit that controls the operation of the lowering unit or the pushing unit based on the number of times the pair of long support units are raised.

  In the bolt supply device according to the present invention, the amount of bolt dropped by a single drop operation (specifically, a rotation operation) of the input portion is substantially constant, so that the inflow space is reached and this inflow space is reached. The number of bolts supplied to the chute part can be made constant by being extruded from. As a result, the number of bolts supplied to the chute can be easily and accurately grasped, so that the chute can be removed without having to measure the number of bolts actually dropped or the number of bolts on the inflow space each time. It is possible to always manage the number of bolts to be carried out by controlling the operation of the lowering part or the pushing part with the number of ascending times of the pair of long supporting parts that constitute. As a result, even when a large number of bolts are put into the storage space at appropriate intervals, it is possible to achieve stable supply of bolts with simple control.

  As described above, according to the bolt supply device of the present invention, it is possible to prevent bolts from remaining and to stably supply bolts of a certain quality.

It is a side view of the bolt supply device concerning one embodiment of the present invention. It is sectional drawing of the side surface direction of the volt | bolt supply apparatus shown in FIG. It is AA sectional drawing of the volt | bolt supply apparatus shown in FIG. It is a partial cross section figure of the plane direction of the volt | bolt supply apparatus shown in FIG. It is principal part expanded sectional drawing of the volt | bolt supply apparatus for demonstrating operation | movement of an injection | throwing-in part, Comprising: (a) Before dropping operation start, (b) Immediately after dropping operation start, (c) The principal part at the time of dropping operation It is an expanded sectional view. It is a principal part expanded sectional view of the bolt supply apparatus for demonstrating operation | movement of an extrusion part, Comprising: (a) is before the start of extrusion operation | movement, (b) is a principal part expanded sectional view at the time of extrusion operation | movement. It is principal part expanded sectional drawing of the volt | bolt supply apparatus for demonstrating operation | movement of a chute | shoot part, Comprising: (a) is sectional drawing which looked at the chute | shoot part from the back direction of the volt | bolt supply apparatus, (b) is bolt supply of a chute | shoot part. It is sectional drawing seen from the side surface direction of the apparatus. It is sectional drawing of the front direction of the conventional volt | bolt supply apparatus. Sectional drawing of the side surface direction of the conventional volt | bolt supply apparatus.

  Hereinafter, a bolt supply device according to an embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a side view showing an appearance of a bolt supply device 10 according to an embodiment of the present invention. As shown in the figure, the bolt supply device 10 mainly includes an alignment supply unit 11 for aligning and supplying a large number of bolts B put into a storage space 14 as a hopper, and a predetermined number of bolts B to be aligned and supplied. And an array supply unit 12 arranged at the position of.

  Among these, the alignment supply unit 11 includes, as shown in FIG. 2, a storage space 14 having an inlet 13 for the bolt B on the upper side, and a bolt B that is disposed below the storage space 14 and discharged from the storage space 14. The inflow space 15 into which the air flows in, the bolt B on the inflow space 15 are extruded, and the extruded portion 16 that discharges the extruded bolt B to the lower side of the inflow space 15 and the bolt B that is ejected by the extruded portion 16 are aligned. A chute unit 17 that can be conveyed while being arranged, and a conveying path 18 that conveys the bolt B that is aligned and supplied by the chute unit 17 to the array supply unit 12. Prepare.

  The storage space 14 has a substantially box shape and is arranged at the top of the alignment supply unit 11. A bottom surface 19 of the storage space 14 is inclined, and a lower end portion of the bottom surface 19 is constituted by a throwing portion 20.

  In this embodiment, the throwing portion 20 constitutes the lower end portion of the side surface 21 located on the inclined lower side of the bottom surface 19 among the bottom portion 19a constituting the lower end portion of the bottom surface 19 and the side surface 21 defining the storage space 14. And is connected to a rotating shaft 22 that extends along the corners of the bottom portion 19a and the side portion 21a. As a result, the throwing portion 20 can be rotated in both forward and reverse directions around the rotation shaft 22 by a drive unit (not shown). Further, the throwing portion 20 is provided with a closing portion 23 that extends downward from the upper end of the bottom portion 19 a and has a substantially arc shape centering on the rotation shaft 22. The closing portion 23 closes a gap generated between the bottom portion 19a and the remaining portion 19b of the bottom surface 19 when the throwing portion 20 is rotated in a direction in which the bottom portion 19a is further inclined (counterclockwise direction in FIG. 2). It has a function. It is preferable that the closing portion 23 always slides with the remaining portion 19b of the bottom surface 19 during the rotation or forms a gap so that the bolt B is not sandwiched between the remaining portion 19b and the bottom portion 19a. It is preferable to define the turnable region of the throwing portion 20 or the arc length of the closing portion 23 so that the gap formed between the bottom portion 19 and the remaining portion 19b of the bottom surface 19 can be closed.

  A first sliding portion 25 made of an inclined plate 24 is disposed below the throwing portion 20, and a second sliding portion 27 having a tilting plate 26 is disposed below the first sliding portion 25. . The inflow space 15 is disposed further below the second sliding portion 27. Therefore, the bolt B dropped from the lowering part 20 slides down on the first sliding part 25 and reaches the second sliding part 27, and tilts the tilting plate 26 of the second sliding part 27 to cause the second sliding part. The bolt B on the portion 27 is slid down to allow the bolt B to flow into the inflow space 15.

  The inflow space 15 is located on the front side of the pushing portion 16 in the pushing direction, and the bottom surface 28 is formed flat. The bottom surface 28 may be formed substantially horizontally. Moreover, the extrusion part 16 has the flat extrusion surface 29 standingly arranged with respect to the bottom face 28 of the inflow space 15, and this extrusion surface 29 is the standing side and the extrusion side of the bottom face 28 along the bottom face 28 It can be moved to the end. In this embodiment, the pushing portion 16 can be driven by a driving mechanism (such as a hydraulic cylinder) (not shown), and the driving force by the driving mechanism is provided by the link mechanism 30 provided on the rear side in the pushing direction of the pushing portion 16. Is transmitted to the tilting plate 26 of the second sliding portion 27. That is, as shown in FIG. 2, the link mechanism 30 includes a tapered cam surface 31 provided integrally with the pushing portion 16 and an engagement roller 32 provided on the tilting plate 26 and engaged with the tapered cam surface 31. When the pushing surface 29 retreats from the inflow space 15, the engaging roller 32 runs up on the tapered cam surface 31 provided in the pushing portion 16, so that the tilting plate 26 tilts in a tilting direction. Yes. Further, when the pushing surface 29 moves forward toward the inflow space 15, the tilting plate 26 returns to the horizontal state by the engaging roller 32 running down the taper cam surface 31.

  As shown in FIGS. 2 to 4, the chute portion 17 is located on the forward side and below the inflow space 15 and the head portion in a state where the long portion Ba of the bolt B extruded from the inflow space 15 is suspended. It has a pair of long support parts 33 (refer FIG. 7) which support Bb, and the raising / lowering means (illustration omitted) which can raise / lower a pair of long support parts 33. As shown in FIG. The pair of long support portions 33 are disposed in a direction parallel to the extrusion direction of the extrusion portion 16 and have a support surface 34 of the inclined head portion Bb. By raising 33, the bolts B supported by the pair of long support portions 33 can be conveyed while being aligned toward the inclined lower side of the support surface 34 by their own weight. In this embodiment, the pair of long support portions 33 is provided on both sides of the chute portion 17 in the width direction (direction perpendicular to the extrusion direction by the extrusion portion 16), and between these two pairs of long support portions 33. Are provided with inclined surfaces 35a and 35b for sliding the bolt B extruded from the inflow space 15 and feeding it to each pair of long support portions 33 with the center in the width direction as a mountain (inclined in different directions). It has been.

  Further, the operations of the lowering portion 20, the pushing portion 16 (the pushing surface 29), and the pair of long support portions 33 are controlled by a control panel (not shown), for example, based on the number of times the pair of long support portions 33 are raised. The operation timing of the lowering portion 20 and the pushing surface 29 is controlled.

  Hereinafter, the flow of the bolt alignment supply process using the bolt supply apparatus 10 having the above configuration will be described with reference to FIGS.

  First, when a large amount of bolts B are charged from the charging port 13, the large number of bolts B are held in the storage space 14 having the charging port 13 in the upper part (FIG. 5A). Then, from this state, the throwing portion 20 is rotated in a direction in which the bottom portion 19a is further inclined by driving means (not shown). Thereby, the plurality of bolts B are held in a space formed between the bottom portion 19a and the side portion 21a constituting the throwing portion 20 and rotate integrally with the throwing portion 20 (FIG. 5B). )). Further, at this time, the substantially arc-shaped closing portion 23 extending downward from the upper end of the bottom portion 19a of the throwing portion 20 is rotated integrally with the bottom portion 19a, so that the bottom portion 19a and the remaining portion 19b of the bottom surface 19 are rotated. The gap that occurs in between and gradually spreads is blocked. Thereby, the situation where the bolt B on the remaining portion 19b of the bottom surface 19 falls from the gap as the throwing portion 20 rotates is prevented.

  Then, when the throwing part 20 is rotated to some extent and the side part 21a is inclined downward from the horizontal state toward the tip side (FIG. 5C), a plurality of pieces held in the space above the throwing part 20 Bolt B is dropped downward. The dropped bolt B slides down on the inclined plate 24 of the first sliding portion 25 located below the dropping portion 20 and is discharged to the second sliding portion 27.

  In this way, when all the bolts B dropped from the lowering portion 20 are discharged to the second sliding portion 27 and reach the tilting plate 26, the tilting plate 26 is tilted from the horizontal state, and the tilting plate 26 is then tilted. The bolt B is slid down toward the inflow space 15 adjacent to the tilting plate 26 (FIG. 6A). In this embodiment, since the tilting plate 26 and the pushing surface 29 of the pushing portion 16 are interlocked via the link mechanism 30, the pushing surface 29 is simultaneously moved by tilting the tilting plate 26 as described above. Retreat from above the inflow space 15. Thereby, all the bolts B on the tilting plate 26 flow into the vacant inflow space 15 (a state indicated by a two-dot chain line in FIG. 6A).

  Thereafter, this time, the pushing surface 29 is driven in a direction to advance toward the inflow space 15, and the bolt B on the inflow space 15 is pushed toward the chute portion 17 adjacent to the inflow space 15 (see FIG. 6 (b)). Thus, by extruding the bolts B, the bolts B intertwined with each other are sent out to the chute unit 17 in a state where they are separated.

  The bolt B sent out to the chute part 17 by the extruding part 16 falls on a pair of inclined surfaces 35a, 35b arranged at a position lower than the bottom surface 28 of the inflow space 15, and a pair of inclined surfaces 35a, 35b. Of the slanted surfaces 35a and 35b and reach the pair of long support portions 33 located on the slanting lower side of the slanted surfaces 35a and 35b (FIG. 7A). At this stage, while the long portion Ba is suspended between the pair of long support portions 33, the head Bb is supported by the support surfaces 34 of the pair of long support portions 33, Although it has reached on the long support part 33, the volt | bolt B etc. of the state which got on the support surface 34 in the state which orient | assigned the long part Ba to the substantially horizontal direction are mixed.

  Therefore, from this state, by raising the pair of long support portions 33 by a lifting means (not shown), the bolt B on the support surface 34 swings, and the long portion Ba is moved to the pair of long support portions 33. The head portion Bb is supported by the support surface 34 in a state where it is suspended in between. Further, since the support surface 34 has a shape inclined downward as it goes to the conveyance path 18, the bolt B supported as described above is aligned with the weight of the bolt B itself while being inclined below the support surface 34. It is transported toward the side (FIG. 7B). Here, by raising the inclined lower ends of the pair of long support portions 33 to a height that is continuous with the conveyance path 18, the bolt B that is slid and transferred on the support surface 34 is transferred to the conveyance path 18. Transfer (delivery is performed), whereby the bolt B is supplied from the alignment supply unit 11 to the array supply unit 12. Moreover, about the volt | bolt B located in the side of a pair of elongate support part 33, a pair of elongate support part 33 is once lowered | hung, and the support surface 34 is brought to a position lower than the said volt | bolt B. Thus, the bolt B located on the side rolls on the support surface 34 or between the pair of long support portions 33. Therefore, by raising the pair of long support portions 33 from this state, the bolts B on the support surface 34 can be transferred toward the conveyance path 18 while being aligned as described above. Therefore, by performing the above operation one or more times, all the bolts B supplied to the chute unit 17 are aligned and supplied to the array supply unit 12 (stocked on the conveyance path 18). ).

  When all the bolts B dropped by the throwing portion 20 are aligned and supplied by the chute portion 17, the bottom portion 19a is returned to the original state, that is, as shown in FIG. The throwing portion 20 is rotated to a position parallel to (being flush with) the remaining portion 19b of the bottom surface 19. By this operation, the bolt B in the storage space 14 flows into the space above the throwing portion 20 again. Therefore, by rotating the throwing portion 20 again as shown in FIGS. B can be dropped.

  Similarly, with respect to the second sliding portion 27 (tilting plate 26) and the pushing portion 16 (pushing surface 29), the tilting plate 26 is interlocked by the link mechanism 30 by retracting the pushing surface 29 from above the inflow space 15. Thus, the state is inclined downward toward the inflow space 15 (FIG. 6A). Therefore, when the bolt B is dropped in this state, the dropped bolt B slides down on the tilting plate 26 and flows into the inflow space 15. Here, all the bolts B on the inflow space 15 are supplied toward the chute portion 17 by driving the pushing surface 29 forward toward the inflow space 15. And by raising / lowering a pair of elongate support part 33 similarly to the above-mentioned, all the volt | bolts B supplied to the chute | shoot part 17 are aligned and supplied. In this way, by controlling the operations of the lowering portion 20, the tilting plate 26, the pushing portion 16 (the pushing surface 29), and the chute portion 17 (the pair of long support portions 33), the bolt B put into the storage space 14. Are supplied in small amounts, and the supply amount to the array supply unit 12 (in this embodiment, the stock amount on the conveyance path 18) is appropriately adjusted.

  Thus, in the present invention, the lower end portion of the bottom surface 19 constituting the storage space 14 is a part of the throwing portion 20, and the throwing portion 20 is operated (rotated) with respect to the remaining portion 19b of the bottom surface 19, Since the bolt B positioned at the lower end of the storage space 14 can be dropped below the storage space 14, the bolt B positioned at the bottom of the storage space 14 can be preferentially aligned and supplied. Further, the bottom surface 19 constituting the storage space 14 is inclined, and the lower end portion of the inclined bottom surface 19 is used as the throwing portion 20, so that the bolt B introduced into the storage space 14 is always at the bottom of the storage space 14. After that, it is dropped downward by the lowering portion 20. Therefore, it is possible to reliably drop all the bolts B thrown into the storage space 14 without leaving them. Further, since all of the bolts B dropped by the throwing portion 20 and flowing into the inflow space 15 can be supplied to the chute portion 17 by the pushing portion 16, no remaining bolt B is generated in the inflow space 15. Therefore, it is possible to reliably prevent the bolt B from remaining in the bolt supply device 10.

  Further, in the present invention, the bolt B on the inflow space 15 is extruded by the extruding portion 16 so that the bolt B can be supplied to the chute portion 17, so that the bolt that is still entangled when it flows into the inflow space 15. Even if there is B, the entanglement can be effectively eliminated (separated) by the impact when being extruded by the extruding unit 16, and sent to the chute unit 17. Therefore, the bolt B fed to the chute unit 17 can be supported in a suspended manner with high probability and supplied to the array supply unit 12 in an aligned state. Further, as in this embodiment, by providing the closing portion 23 while allowing the throwing portion 20 to turn, the bolt dropped below the storage space 14 by one turn of the throwing portion 20. The number of B can be made constant with higher probability. Therefore, as described above, based on the relationship between the number of ascents of the pair of long support portions 33 constituting the chute portion 17 and the number of bolts B dropped by one dropping operation, the pair of long elongated portions 33 is arranged. Based on the number of times of raising of the support portion 33, the operations of the lowering portion 20 and the extrusion portion 16 (extrusion surface 29) can be controlled, thereby further stabilizing the cutout amount (alignment supply amount) to the array supply portion 12. It becomes possible to make it.

  Further, in the present embodiment, the bolt B contacts from the storage space 14 into which the bolt B is inserted to the transport path 18 (or outside the bolt supply device 10) where the bolt B is finally aligned and transported. Except for the bottom surface 28 of the inflow space 15 extruded by the extrusion surface 29, all the surfaces (the bottom surface 19, the inclined plate 24, the inclined plate 26, the inclined surfaces 35a and 35b, and the support surface 34) with which the bolt B comes into contact. Since it comprised in the inclined surface, the volt | bolt B can be transferred from the storage space 14 to the exterior of the volt | bolt supply apparatus 10 by the fall (sliding) by the dead weight of the volt | bolt B. Thereby, the wear of the bolt B can be significantly reduced as compared with the conventional vibration conveyance type. In addition, since a large driving force is not required for transferring the bolt B, the driving source is small, and the size of the entire bolt supply device 10 can be reduced.

  In this embodiment, the bottom surface 19 of the storage space 14 where the bolts B are sequentially dropped (slid down), the inclined plate 24 of the first sliding part 25, and the tilting plate 26 of the second sliding part 27 are in different directions. Since it was made to incline, it can be set as the arrangement | positioning which piled up the sliding element to the chute | shoot part 17 up and down. This also makes it possible to reduce the size of the bolt supply device 10.

  As mentioned above, although one Embodiment of this invention was described, of course, this invention can also take embodiment other than this.

  For example, in the above-described embodiment, the throwing portion 20 is rotationally driven around the turning shaft 22. However, the lower end portion of the bottom surface 19 of the storage space 14 is configured, and the lower end (throwing portion 20) of the storage space 14 is configured. Any configuration is possible as long as the bolt B located on the upper side can be dropped below the storage space 14. For example, a door structure that can be opened and closed is provided at the lower end portion of the bottom surface 19 as the throwing portion 20, and the space above the door is placed on the upper end side of the lower end portion (door portion) with the opening operation of the door. It is good also as a structure which makes the partition wall which partitions off protrude. Moreover, it is good also as a structure which can be rotated with the dead weight of the volt | bolt B hold | maintained on the throwing-down part 20 by devising the shape of the throwing-down part 20 (in this case, there is a mechanism which controls or cancels rotation). Just fine).

  In addition, the tilting plate 26 of the second sliding portion 27 may be fixed in an inclined state, and one or both of the first sliding portion 25 and the second sliding portion 27 may be omitted depending on other structures. .

  In addition, regarding the operation control of the throwing portion 20, the pushing surface 29, and the pair of long support portions 33, in the above embodiment, all of the bolts B supplied to the chute portion 17 by the single dropping operation of the throwing portion 20 are aligned. Although the case where control is performed so that the throwing portion 20 is rotated again after the conveyance is finished, of course, before using all the dropped bolts B, the throwing portion 20 is rotated again and a new bolt B is introduced. You may supply to the space 15 or the chute | shoot part 17. FIG. Since the number of bolts B dropped or the number of bolts B sent out (aligned transport) by one ascending operation of the pair of long support portions 33 can be managed, it can be accurately controlled even if dropped halfway. it can. Similarly, since a certain number of bolts B can be held in the chute portion 17, the throwing portion 20 and the pushing portion 16 are operated (dropping operation and pushing operation) when the bolt B still remains in the chute portion 17. Thus, it is possible to prevent the chute portion 17 from becoming empty.

DESCRIPTION OF SYMBOLS 10 Bolt supply apparatus 11 Alignment supply part 12 Arrangement supply part 13 Input port 14 Storage space 15 Inflow space 16 Extrusion part 17 Chute part 18 Conveyance path 19 Bottom face (storage space)
19a Bottom portion 19b Remaining portion 20 Throwing portion 21a Side portion 23 Blocking portion 25 First sliding portion 26 Tilt plate 27 Second sliding portion 28 Bottom surface (inflow space)
29 Extrusion surface 33 A pair of long support portions 34 Support surface 101 Outer box 102 First stock portion 103 Second stock portion 104 Lifting bottom portion 109 Chute portion 142 Inclined plate B Bolt Ba Long portion Bb Head portion

Claims (3)

A bolt storage space having a bolt insertion port at the top, and a pair of long support portions that support the head portion in a state where the long portion of the bolt discharged from the storage space is suspended; A chute part that conveys the bolts supported by the pair of long support parts while being aligned toward the lower side in the longitudinal direction of the pair of long support parts by using their own weights by making the support surfaces of the inclined surfaces inclined In the bolt supply device comprising:
The bottom surface constituting the storage space is inclined,
A lower end portion of the inclined bottom surface, and a lowering portion for dropping a bolt located at the lower end of the storage space below the storage space;
An inflow space that is disposed below the storage space and into which a bolt dropped by the lowering portion flows,
A bolt supply device, further comprising: an extruding portion for extruding the bolt on the inflow space to supply the extruded bolt to the chute portion located below the inflow space.   The throwing portion comprises a bottom portion constituting the lower end portion of the bottom surface and a side portion constituting the lower end portion of the side surface constituting the storage space, and is rotatable around the bottom portion and the lower end of the side portion. The portion includes a closing portion that extends downward from the upper end of the bottom portion and closes a gap generated between the bottom portion and the remaining portion of the bottom surface when the throwing portion is rotated in a direction in which the bottom portion is further inclined. The bolt supply apparatus of Claim 1 provided.   The bolt supply device according to claim 1, further comprising a control unit that controls the operation of the lowering unit or the pushing-out unit based on the number of ascents of the pair of long support units.

Images