JP5748058B2 - Work supply device - Google Patents

Description

  The present invention relates to a workpiece supply apparatus in which bolts as workpieces are aligned, cut out one by one, and supplied to the next step.

In a conventional workpiece supply apparatus, a supply apparatus (see Patent Document 1) in which a vibration ball feeder, a scraping type, a linear vibration type feeder, or the like is combined is employed.
However, this conventional workpiece supply apparatus is disadvantageous in terms of cost because it is necessary to provide a plurality of actuators for supply, alignment, conveyance, and cutting, and it is necessary to secure a large exclusive space. Has occurred.

JP 2010-202341 A

  As described above, the conventional workpiece supply apparatus has a problem in that the equipment cost is high and it is necessary to secure a large exclusive space.

  This invention is made | formed in view of this point, and it aims at providing the workpiece | work supply apparatus which can comprise apparatus itself compactly while suppressing an installation cost.

In order to solve the above-described problem, a workpiece supply apparatus according to the present invention includes a conveyance shaft having a spirally extending protrusion for rotating workpieces in an axial direction and aligning the workpiece, and the conveyance shaft. A workpiece holding body that holds the workpiece in a fixed posture, and a clogging suppression unit that is disposed upstream of the conveyance shaft and that suppresses clogging of the workpiece, and the clogging suppression unit includes a pendulum mechanism. The pendulum mechanism includes a pendulum member disposed along a workpiece insertion port provided on the upstream side of the transport shaft, and an end portion of the pendulum member is disposed near the outer periphery of the transport shaft, by forward and backward movement along the axial direction of the conveying shaft, and thereby distributed along the workpiece in the axial direction of the conveying shaft end of the pendulum member is in contact with the workpiece from the workpiece inlet It is characterized by a door.
As a result, the equipment cost can be reduced and the apparatus itself can be made compact.
Various aspects of the workpiece supply apparatus of the present invention and their functions will be described in detail in the section of the aspect of the invention below.

(Aspect of the Invention)
In the following, some aspects of the invention that can be claimed in the present application (hereinafter sometimes referred to as “claimable invention”) will be exemplified and described. In addition, each aspect is divided into a term like a claim, it attaches | subjects a number to each term, and is described in the format which quotes another term as needed. This is for the purpose of facilitating the understanding of the claimable invention, and is not intended to limit the combinations of the constituent elements constituting the claimable invention to those described in the following sections. In other words, the claimable invention should be construed in consideration of the description, embodiments, etc. accompanying each section, and as long as the interpretation is followed, there may be embodiments in which other constituent elements are added to the aspects of each section. In addition, an aspect in which the constituent elements are deleted from the aspect of each item can be an aspect of the claimable invention. Each of the items (1), (2), (4), and (6) corresponds to each of claims 1 to 4 .

(1) A workpiece supply device having a head portion and a shaft portion, the conveyance shaft having a spirally extending projection for rotating the workpiece and aligning the workpiece in the axial direction, A workpiece holding body for holding the workpiece in a fixed posture with the conveyance shaft, and a clogging suppression unit disposed on the upstream side of the conveyance shaft and suppressing clogging of the workpiece, the clogging suppression unit comprising: The pendulum mechanism, and the pendulum mechanism includes a pendulum member disposed along a workpiece insertion port provided on the upstream side of the transport shaft, and an end portion of the pendulum member is close to the outer periphery of the transport shaft. The end of the pendulum member comes into contact with the workpiece from the workpiece insertion port and is distributed along the axial direction of the conveyance shaft by being arranged and moving forward and backward along the axial direction of the conveyance shaft. Work supply device, characterized in that that.
In the workpiece supply apparatus of item (1), the workpiece is held with its head (larger than the shaft) hooked and suspended between the conveyance shaft and the workpiece holder, and conveyed by rotation of the conveyance shaft. It is conveyed in the axial direction along the spiral protrusion of the shaft.
Further, since clogging suppression means for suppressing clogging of the workpiece is provided on the upstream side of the conveyance shaft, clogging of the workpiece is suppressed, and the workpieces are smoothly aligned and conveyed along the conveyance shaft.
Further, this clogging suppression means has a pendulum mechanism, and the end of the pendulum member of the pendulum mechanism moves forward and backward along the axial direction of the transport shaft, so that it is a lump that is thrown from the work inlet to the upstream side of the transport shaft. The work can be distributed by contacting the work that has become.

(2) A part of the pitch of the protruding portion of the conveying shaft is set to be less than two or more than two in the head width or shaft diameter of the workpiece. The workpiece supply device described in 1.
(3) The pitch of the protruding portion of the conveying shaft is characterized in that a pitch of less than two and a pitch of two or more in the head width or shaft diameter of the workpiece are mixed ( Item 1) or workpiece supply device according to item (2).
In the workpiece supply device according to items (2) and (3), the pitch of the protrusions is set to one pitch within a range in which the pitch is set to be less than two (narrow pitch) in the head width or shaft diameter of the workpiece. One workpiece can be held, and two or more workpieces can be held in one pitch within a range where the pitch is set to two or more (wide pitch) in the head width or shaft diameter of the workpiece. It becomes like this. As a result, other workpieces lying on the upper outer peripheral surface of the conveyance shaft so as to intersect with the workpiece suspended between the conveyance shaft and the workpiece holder are normally suspended between the conveyance shaft and the workpiece holder. Can be lowered.

(4) The work supply apparatus according to any one of (1) to (3) , wherein a drive source of the clogging suppression unit and a drive source of the transport shaft are the same.
In the workpiece supply apparatus according to the item (4) , the equipment cost can be suppressed by minimizing the drive source, and the apparatus itself can be configured compactly.

(5) the pendulum mechanism, the supported rotatably to the shaft portion extending in the radial direction of the conveying shaft, and the pendulum member is biased toward one direction of rotation, the conveying shaft end of the pendulum member A part according to any one of (1) to (4) , characterized in that it comprises a pusher mechanism that can be moved in and out to press the opposite part via the shaft part and the shaft part in the other rotational direction. Work feeding device.
In the workpiece supply device of item (5) , the pendulum mechanism can be easily configured. In addition, since the drive source of the bush mechanism and the drive source of the transport shaft are the same, the rotational drive of the transport shaft and the movement of the pusher mechanism are interlocked.

(6) A horizontally long hopper that accommodates the multiple workpieces is provided. The hopper has one longitudinal end on the workpiece insertion port side disposed downward and the other longitudinal end disposed on the upper end. The conveying shaft is arranged with an upward inclination from one end side in the longitudinal direction toward the other end side along the inclination of the hopper, below the hopper. The workpiece supply device according to any one of (1) to (5) , which is characterized.
In the workpiece supply apparatus according to item (6), a large number of workpieces accommodated in the hopper move along the inclination and are inserted between the conveyance shaft and the workpiece holder from the workpiece input port. In addition, since each workpiece is transported upwardly by the transport shaft and is not transported using its own weight, the transport shaft can be provided below the hopper, and the apparatus itself can be configured compactly. It can be further reduced.

(7) The workpiece feeding device according to (6) , wherein the workpiece insertion port is provided at a bottom portion on one end side in the longitudinal direction of the hopper.
In the workpiece supply apparatus according to item (7), a large number of workpieces housed in the hopper come to gather at the workpiece inlet along the inclination .

(8) A workpiece supply apparatus having a head portion and a shaft portion, the conveyance shaft having a spirally extending projection for rotating the workpiece in order to align and convey the workpiece in the axial direction, A work holding body that holds the work in a fixed posture with respect to the conveying shaft; and a clogging suppressing means that is disposed on the upstream side of the conveying shaft and suppresses clogging of the work, and the clogging suppressing means includes: A blade-like member rotating so as to lift up a plurality of workpieces housed below the upstream side of the conveyance shaft, and a workpiece falling from the blade-like member between the conveyance shaft and the workpiece holder A work supply device comprising a guide member for guiding.
In the workpiece supply apparatus according to item (8), when a large number of workpieces lifted by the blade-shaped member fall from the blade-shaped member, the workpiece is guided between the conveyance shaft and the workpiece holder by the guide member, and the conveyance shaft spirals. It is conveyed along the protruding part.

(9) The work supply apparatus according to (8), further including a drum-shaped hopper that is disposed so as to surround the conveyance shaft and accommodates a work therein.
In the workpiece supply apparatus according to item (9) , the apparatus itself can be configured compactly.

  According to the present invention, it is possible to provide a workpiece supply apparatus in which the equipment cost is reduced and the apparatus itself is compactly configured.

FIG. 1 is a schematic perspective view of a workpiece supply apparatus according to the first embodiment of the present invention. FIG. 2 is a schematic front view showing the main part of FIG. FIG. 3 is a schematic side view showing the main part of FIG. FIG. 4 is a perspective view of the conveyance shaft and the workpiece holder of the workpiece supply device of FIG. FIG. 5 is a front view showing a state in which the bolt is held by the transport shaft and the work holding body of the work supply device of FIG. 1. FIG. 6 is a diagram illustrating a state of conveyance of each bolt when a special situation is reached when each bolt is conveyed along the conveyance shaft in the workpiece supply apparatus of FIG. 1. FIG. 7 is a diagram illustrating a conveyance state of each bolt when the bolts are conveyed along the conveyance shaft in the workpiece supply apparatus of FIG. 1 and a special situation different from that in FIG. 6 is reached. FIG. 8 is a diagram illustrating a conveyance state of each bolt when the bolts are conveyed along the conveyance shaft in the workpiece supply apparatus of FIG. 1 and a special situation different from that in FIGS. 6 and 7 is reached. is there. 9 is a cross-sectional view showing the pusher mechanism of the workpiece supply apparatus of FIG. 1, wherein (a) is a view in which the pusher main body portion of the pusher mechanism is retracted at maximum, and (b) is the largest pusher main body portion. FIG. FIG. 10 is a diagram illustrating a state in which the push of the pusher mechanism is absorbed by the coil spring when an overload is applied to the pendulum member of the workpiece supply device of FIG. FIG. 11 is a schematic side view of a workpiece supply apparatus according to the second embodiment of the present invention. 12 is a view taken in the direction of arrow A in FIG.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to FIGS.
The workpiece supply devices 1a and 1b according to the first and second embodiments of the present invention are arranged by aligning bolts 4 as workpieces having a head 2 and a shaft portion 3 having a smaller diameter than the head 2. It is provided as a device that cuts out and supplies it to the next step. The workpiece supply apparatuses 1a and 1b according to the first and second embodiments will be described below. The workpiece supply apparatus 1a according to the first embodiment corresponds to the invention described in the claims. It is.

First, a workpiece supply device 1a according to a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the workpiece supply device 1 a according to the first embodiment is provided at a hopper 7 a that houses a large number of bolts 4, and at the bottom of one end side (right end side in FIG. 1) of the hopper 7 a. Spiral spring (protruding portion extending in a spiral shape) on the outer peripheral surface of the shaft 10 having a circular cross section for aligning and feeding the workpiece insertion port 8 and the bolts 4 introduced from the workpiece insertion port 8 in the axial direction. 11, a conveying shaft 9 configured to rotate and driven, a work holder 12 that holds the head 2 of the bolt 4 between the conveying shaft 9 and holds the bolt 4 so as to be suspended, and a conveying shaft 9. , A motor 14 as a drive source for driving the conveying shaft 9 and the clogging suppression means 13a, and a downstream end of the work holding body 12. And a workpiece cutout chute 15 as a work cutting unit provided.

  As shown in FIGS. 1 and 2, the hopper 7 a is formed in a substantially V-shaped cross section that is horizontally long and opens downward. As shown in FIG.1 and FIG.3, the partition plate 20 is laterally installed inside the hopper 7a except for a part. In view of this, a range in which the partition plate 20 is not provided laterally acts as the work insertion port 8 at one end in the longitudinal direction of the hopper 7a (the right end in FIG. 1). As can be seen from FIG. 2, both side walls of the workpiece insertion port 8 in front view are continuous from both side walls of the hopper 7a and are formed so that the opening width thereof becomes narrower downward. The workpiece insertion port 8 is directed between the conveyance shaft 9 and the workpiece holder 12. The hopper 7a configured in this manner has one end side (the right end side in FIG. 1) on the workpiece insertion port 8 side disposed downward, and the other end side (the left end side in FIG. 1) disposed upward. It is supported by the support body 21 so as to be inclined as viewed.

  As shown in FIGS. 1, 4, and 5, the transport shaft 9 is configured by winding a spiral spring 11 around an outer peripheral surface of a shaft 10 having a circular cross section. The spiral spring 11 corresponds to a spiral protrusion. The pitch of the spiral spring 11 is set to a pitch set to be less than two in the head width of the bolt 4 (hereinafter referred to as a narrow pitch A) and to a pitch set to two or more in the head width of the bolt 4. (Hereinafter, referred to as a wide pitch B). A narrow pitch A can hold one bolt 4 per pitch, while a wide pitch B can hold two or more bolts 4 per pitch. In the present embodiment, the pitch of the spiral spring 11 includes a predetermined range in which a plurality of narrow pitches A are continuously formed and a predetermined range in which a plurality of wide pitches B are continuously formed. Composed.

  Further, the upstream side of the transport shaft 9 is located below the workpiece insertion port 8 of the hopper 7a, and extends below the hopper 7a along the inclination of the hopper 7a over the entire length of the hopper 7a. Furthermore, a gear 23 that meshes with the gear 22 of the motor 14 is provided at an upstream end portion extending outward from the hopper 7 a of the transport shaft 9. As a result, the transport shaft 9 is rotationally driven by the rotating shaft 24 of the motor 14.

  As shown in FIGS. 1, 4, and 5, a plate-like work holding body 12 is erected and extended on the side of the transport shaft 9 in parallel with the transport shaft 9. The workpiece holder 12 is supported on the hopper 7a by a support member (not shown). The distance between the conveyance shaft 9 and the work holder 12 is set to such a distance that the head 2 of the bolt 4 is caught between the upper outer peripheral surface of the conveyance shaft 9 and the work holder 12. The length of the work holder 12 is set shorter than the length of the transport shaft 9. A workpiece cutting chute 15 as a workpiece cutting portion is disposed at a position below the downstream end of the workpiece holder 12. As shown in FIG. 1, the range in which the workpiece holder 12 is disposed is a range from the lower side of the workpiece insertion port 8 to the front of the workpiece cutting chute 15.

  As shown in FIG. 1, the clogging suppressing means 13 a disperses a plurality of bolts 4 that are formed in a lump form from the workpiece insertion port 8, and the end portion 29 is disposed close to the outer periphery of the conveyance shaft 9, The pendulum mechanism 25 moves forward and backward along the axial direction of the transport shaft 9.

  As shown in FIGS. 1 and 9, the pendulum mechanism 25 is rotatably supported by a shaft portion 31 extending in the radial direction of the transport shaft 9, and always in one rotation direction (clockwise direction in the present embodiment). The portion 30 on the opposite side of the pendulum member 28 to be biased and the end portion 29 of the pendulum member 28 on the conveying shaft 9 side through the shaft portion 31 is moved in the other rotation direction (counterclockwise in this embodiment). The pusher mechanism 34 can be moved in and out to press in the circumferential direction.

  As shown in FIGS. 2 and 3, the pendulum member 28 has a substantially V-shaped outer shape as viewed from the front, and is formed in a cross-sectional shape. A bent portion in a side view of the pendulum member 28 is rotatably supported by a shaft portion 31 extending in the radial direction of the conveyance shaft 9, and the pendulum member 28 is rotated clockwise around the shaft portion 31 by a torsion spring (not shown). Always energized. As shown in FIGS. 2 and 3, the shaft portion 31 extends in the radial direction of the transport shaft 9 at the same height as the partition plate 20 on the upstream side of the workpiece insertion port 8, and both end portions thereof are hoppers 7 a. Supported by As shown in FIG. 9, the end portion 29 on the side of the transport shaft 9 with respect to the shaft portion 31 of the pendulum member 28 is disposed at a position close to the outer peripheral surface of the transport shaft 9. On the other hand, the portion 30 on the opposite side of the pendulum member 28 from the conveying shaft 9 side is pressed in the counterclockwise direction by the pusher mechanism 34 via the shaft portion 31.

As shown in FIG. 9, the pusher mechanism 34 includes a pusher main body portion 35 that presses a portion 30 opposite to the end portion 29 of the pendulum member 28 on the conveying shaft 9 side via a shaft portion 31 in a counterclockwise direction. And a first pulley 37 having a cam-attached flange portion 36 that presses the pusher main body portion 35.
As shown in FIGS. 1 and 9, the first pulley 37 has a cam-equipped flange portion 36 provided on the surface on the pusher main body portion 35 side so as to be gradually inclined toward the pusher main body portion 35 side. It is formed. The first pulley 37 is rotatably supported on one end surface of the hopper 7a. The first pulley 37 is connected to the second pulley 38 connected to the rotating shaft 24 of the motor 14 by a belt 39. The rotational drive from the rotating shaft 24 of the motor 14 is transmitted from the second pulley 38 to the first pulley 37 via the belt 39.

  As shown in FIG. 9, the pusher main body 35 includes a cylindrical housing 40, a rod-shaped push body 45 that is located on the first pulley 37 side and moves in the housing 40 in the axial direction, and the pendulum member 28. The cylindrical bush body 46 is located on the side and moves forward and backward in the housing 40 in conjunction with the forward and backward movement of the rod-like push body 45. The rod-like push body 45 has both end surfaces formed into spherical surfaces. Near the first pulley 37 on the outer peripheral surface of the rod-shaped push body 45, an annular locking portion 47 that protrudes in the radial direction is provided. One end face of the rod-like push body 45 is brought into contact with the cam-equipped flange portion 36 of the first pulley 37. The cylindrical push body 46 is configured such that the tip opening is closed by a spherical wall portion 48. The cylindrical push body 46 is further restricted from sliding toward the first pulley 37 by an annular locking surface 49 provided on the inner peripheral surface of the housing 40. Further, a coil spring 51 is disposed between the shoulder portion 50 continuing from the spherical wall portion 48 in the cylindrical push body 46 and the annular locking portion 47 of the rod-like push body 45.

As a result, the pusher mechanism 34 causes the rod-like push body 45 of the pusher main body portion 35 to move forward and backward by the cam-equipped flange portion 36 of the first pulley 37 as the first pulley 37 rotates, and the cylindrical push body 46 moves. It moves forward and backward through the coil spring 51.
In the pusher mechanism 34, as shown in FIG. 10, even when the pendulum member 28 is stopped due to an overload acting on the pendulum member 28 for some reason, the forward / backward movement from the rod-like bush body 45 is not performed. Since the cylindrical push body 46 is absorbed by the coil spring 51 and can maintain the stopped state at that position, it is not necessary to stop the driving of the motor 14. Thereafter, when the overload on the pendulum member 28 is eliminated, the cylindrical push body 46 moves back and forth in conjunction with the forward and backward movement of the rod-like bush body 45, and the end 29 of the pendulum member 28 is moved to the axis of the transport shaft 9. It moves forward and backward along the direction.

  As shown in FIG. 1, the motor 14 is disposed below the upstream side of the transport shaft 9. The gear 22 is provided on the base side of the rotating shaft 24 of the motor 14, and the second pulley 38 is provided on the tip side. A gear 22 provided on the motor 14 and a gear 23 provided on the transport shaft 9 are meshed with each other. Further, the second pulley 38 of the motor 14 is connected to the first pulley 37 via the belt 39. Thereby, the rotational drive from the rotating shaft 24 of the motor 14 is transmitted to both the conveyance shaft 9 and the pendulum mechanism 25 (the pusher mechanism 34) of the clogging suppression means 13a.

Next, the operation of the workpiece supply device 1a according to the first embodiment of the present invention will be described.
A large number of bolts 4 accommodated in the hopper 7 a move toward one end along the inclination of the hopper 7 a by its own weight, and fall from the workpiece insertion port 8 between the conveying shaft 9 and the workpiece holder 12. At this time, the rotating shaft 24 of the motor 14 is rotated. As a result, the transport shaft 9 is rotated, and the pusher mechanism 34 is also driven so as to be interlocked with this, so that the end of the pendulum member 28 of the pendulum mechanism 25 on the transport shaft 9 side. The portion 29 moves back and forth along the axial direction of the transport shaft 9. As a result, even when a large number of bolts 4 are input in a lump from the workpiece insertion port 8, the bolts 4 are dispersed by the end 29 of the pendulum member 28 coming into contact with each lump 4 in the lump shape. Clogging of each bolt 4 is suppressed.

  Further, as shown in FIGS. 4 and 5, each bolt 4 introduced from the workpiece insertion port 8 is spiral in a state where the head 2 is hooked and suspended between the conveying shaft 9 and the workpiece holder 12. It moves forward along the spring 11.

Therefore, the operation when each bolt 4 reaches the following special situation when each bolt 4 moves forward along the spiral spring 11 of the conveying shaft 9 will be described.
As shown in FIG. 6A, the other bolts 4 are moved in the traveling direction so as to intersect with the bolts 4 suspended at the narrow pitch A of the spiral spring 11 between the conveying shaft 9 and the work holder 12. When the head 2 is faced and lies on the upper surface of the conveying shaft 9 so as to straddle the spiral spring 11, each bolt 4 has a narrow pitch A of the spiral spring 11 as shown in FIGS. 6 (b) and 6 (c). When the crossing of these bolts 4 and 4 is eliminated by moving forward so as to shift to the range of the wide pitch B from that range, the other bolts 4 that have been on the upper surface of the conveying shaft 9 are moved to the same wide pitch B. Then, it is suspended so as to line up with the bolt 4 that is suspended first.

  Further, as shown in FIG. 7A, the other bolts 4 advance so as to intersect with the bolts 4 suspended at the narrow pitch A of the spiral spring 11 between the conveying shaft 9 and the work holder 12. When the shaft 3 lies in the direction so as to lie on the upper surface of the transport shaft 9 so as to straddle the spiral spring 11, each bolt 4 is narrow in the spiral spring 11 as shown in FIGS. When the bolt 4 suspended from the beginning to the narrow pitch A moves to the wide pitch B and the crossing of these bolts 4 is eliminated, it moves forward from the pitch A range to the wide pitch B range. The other bolts 4 on the upper surface of the conveying shaft 9 are suspended at a wide pitch B on the rear side in the traveling direction of the wide pitch B where the bolts 4 are suspended from the beginning. It made.

  Further, as shown in FIG. 8A, when two bolts 4 are suspended at a wide pitch B of the spiral spring 11, each bolt 4 is connected to the spiral spring 11 as shown in FIG. When moving forward from a wide pitch B range to a narrow pitch A range, each bolt 4 is suspended at the adjacent narrow pitch A.

  Next, after each bolt 4 advances along the spiral spring 11, it is cut out from the downstream end of the work holding body 12 to the work cutting chute 15 and supplied to the next step.

  As described above, according to the workpiece supply device 1a according to the first embodiment of the present invention, it is possible to suppress the supply, alignment, conveyance, cut-out, and clogging of each bolt 4 by one motor 14. The equipment cost can be reduced and the apparatus itself can be made compact as compared with the conventional case including a plurality of actuators. Further, since the work supply apparatus 1a does not require the use of a vibration unit as in the prior art, no noise is generated, which is environmentally suitable. Furthermore, in the workpiece supply apparatus 1a, since it is not necessary to configure a dedicated shape for a specific shape, the versatility is high for a workpiece having a similar shape. Furthermore, in this work supply apparatus 1a, each bolt 4 is conveyed with an upward inclination by the conveying shaft 9 and is not conveyed using its own weight. Therefore, the conveying shaft 9 can be provided below the hopper 7a. The device itself can be made compact.

Next, a workpiece supply apparatus 1b according to a second embodiment of the present invention will be described with reference to FIGS. When describing the workpiece supply apparatus 1b according to the second embodiment, only differences from the workpiece supply apparatus 1a according to the first embodiment will be described.
In the workpiece supply apparatus 1b according to the second embodiment, as shown in FIG. 11, the hopper 7b is formed in a drum shape, and one end side (the right end side in FIG. 11) is arranged upward and the other end side ( The left end side of FIG. 11 is arranged downward and is supported by the support 21 so as to be inclined in a side view.
As shown in FIGS. 11 and 12, the clogging suppressing means 13b is disposed on the other end side of the drum-like hopper 7b so as to lift up a large number of bolts 4 accommodated in the lower part on the upstream side of the conveying shaft 9. And a guide member 61 for guiding each bolt 4 falling from above the blade-shaped member 60 between the conveying shaft 9 and the work holder 12.

It arrange | positions so that the opening side of the bottomed cylindrical rotating member 62 driven rotationally may contact | abut to the other end surface (left end surface of FIG. 12) of the drum-shaped hopper 7b. A plurality of blade-like members 60 are provided on the inner peripheral surface of the rotating member 62 so as to protrude toward the center substantially at intervals in the circumferential direction. The inner diameter and outer diameter of the rotating member 62 are substantially the same as the inner diameter and outer diameter of the drum hopper 7b.
Further, the conveying shaft 9 and the work holding body 12 are arranged so that the radial centers of the drum hopper 7b and the rotating member 62 are along the inclination direction of the drum hopper 7b. A motor 14 that rotationally drives the transport shaft 9 and the rotating member 62 is provided on the end surface of the rotating member 62.

The guide member 61 is formed in a plate shape, and is disposed so as to stand in the axial direction from the vicinity of the upper end of the transport shaft 9. As can be seen from FIG. 12, the guide member 61 is disposed so as to be inclined from the workpiece holder 12 at approximately 45 ° with respect to the vertical direction from the vicinity of the upper end of the transport shaft 9. The guide member 61 is provided in a range where at least the workpiece holder 12 and the blade-like member 60 (rotating member 62) overlap in the radial direction of the transport shaft 9, and directly or via a connecting member (not shown) on the drum-like hopper 7b. Supported.
Although not shown, a workpiece cutting chute is disposed at a position below the downstream end of the workpiece holder 12.

Next, the operation of the workpiece supply device 1b according to the second embodiment of the present invention will be described.
First, when the motor 14 is driven, the transport shaft 9 and the rotating member 62 rotate.
Then, each bolt 4 moved by its own weight from the drum-like hopper 7 b into the rotating member 62 is lifted up so as to be rotated by the plurality of blade-like members 60 in the rotating member 62. Subsequently, each bolt 4 lifted upward falls from above each blade-like member 60, but each bolt 4 dropped toward the vicinity of the radial center of the drum-like hopper 7 b falls on the upper surface of the guide member 61. . Then, each bolt 4 is guided between the conveyance shaft 9 and the work holding body 12 along the guide member 61 and is hung between the conveyance shaft 9 and the work holding body 12. It advances along the spring 11. Finally, each bolt 4 is cut out one by one from the downstream end of the work holding body 12 to the work cutting chute and supplied to the next step.

  In the workpiece supply apparatus 1b according to the second embodiment of the present invention described above, the same effect as that of the workpiece supply apparatus 1a according to the first embodiment can be obtained.

  DESCRIPTION OF SYMBOLS 1a, 1b Workpiece supply apparatus, 2 head, 3 shaft part, 4 bolt, 7a, 7b hopper, 8 work insertion port, 9 conveyance shaft, 11 spiral spring (spiral projection part), 12 work holding body, 13a, 13b Clogging suppression means, 14 motor (drive source), 15 work cutting chute (work cutting part), 25 pendulum mechanism, 28 pendulum member, 34 push mechanism, 35 push main body part, 60 blade-like member, 61 guide member, 62 Rotating member

Claims (4)

A workpiece supply device having a head and a shaft,
A conveying shaft that has a spirally extending protrusion and rotates to align the workpiece and convey it in the axial direction;
A workpiece holder that holds the workpiece in a fixed posture with the conveyance shaft;
A clogging suppressing means that is arranged on the upstream side of the conveying shaft and suppresses clogging of the workpiece,
The clogging suppression means includes a pendulum mechanism,
The pendulum mechanism includes a pendulum member disposed along a workpiece insertion port provided on the upstream side of the transport shaft, and an end portion of the pendulum member is disposed close to an outer periphery of the transport shaft, and the transport shaft The end portion of the pendulum member comes into contact with the workpiece from the workpiece insertion port to disperse the workpiece along the axial direction of the conveying shaft. Feeding device.   2. The workpiece according to claim 1, wherein a part of the pitch of the protruding portion of the transport shaft is set to be less than two or more than two in the head width or shaft diameter of the workpiece. Feeding device. Work supply apparatus according to claim 1 or 2, characterized in that the drive source of the jamming inhibiting means and the driving source of the conveying shaft are identical. A horizontally long hopper that accommodates the multiple workpieces;
The hopper is arranged with one end in the longitudinal direction on the workpiece insertion port side downward and the other end in the longitudinal direction upward, and is arranged with an upward inclination from the one end side toward the other end side,
The transfer shaft, wherein the lower of the hopper to any one of claims 1 to 3, characterized in that it is arranged at an upward inclination toward the other end from the one longitudinal end along the inclination of the hopper Work feeding device.