JP2011201702A - Headed rod component aligning and supplying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a head rod component aligning and supplying device having simple construction for surely handing over headed rod components having large or small sizes, whichever, at joint positions.SOLUTION: The headed rod component aligning and supplying device includes a component supply machine which is constituted of an oscillating ball feeder 10, and a belt carrying unit 20 for carrying the headed rod components supplied from the ball feeder 10 while supporting them, and in which a feeder rail 14 is arranged at a discharge end 13 of the ball feeder 10 for supporting the seat surfaces of heads 2 with legs 3 set down, an intermediate rail 30 is arranged with the upper face of its rear end corresponding to the linear front end of the rail, in such a manner as to be rockable a predetermined angle around an angle portion on the upper face of the rear end, and the belt carrying unit 20 is provided at the front end of the intermediate rail 30. Thus, the up-and-down jump or turn-down of the headed rod components are avoided at hand-over positions where the headed rod components are supplied to the belt carrying unit, resulting in improved operation availability.

Description

  The present invention relates to a belt conveyance unit that receives and aligns and receives a seat with a head supported from a ball feeder that continuously supplies rod-like parts with heads such as screws, rivets, pins or bolts with the seating surface of the head down. The present invention relates to an aligning and supplying apparatus for transferring parts from a ball feeder to a belt conveying unit without scattering.

  When aligning and feeding head-shaped bar-shaped parts such as screws, rivets, pins or bolts, a parts feeder as shown in FIG. 5 is often used. As shown in Japanese Patent Application Laid-Open No. 10-236625, a ball feeder 110 and parts (not shown) fed from the groove of the feeding end portion 113 are fed forward by a straight track 120. It is like that. The linear track 120 is applied with a straight driving force by the vibrating body 121, so that the components are supported by the head seat surface and aligned and fed forward with the legs down. It has become. However, even if an attempt is made to determine whether a part is non-defective or defective with respect to the size and shape on the track, the part constantly vibrates while moving on the track. Since it is necessary to newly install an apparatus for determining the front of the apparatus, the entire apparatus is large and expensive.

  In order to solve this problem, in the manufacture of headed rod-like parts such as screws, rivets, pins or bolts, the heads of these parts are supported and transported while being aligned and supplied in a suspended state. A mechanism that immediately determines non-defective products such as length, head height, and shape is employed. Specifically, the structure is as shown in FIG. 6, in which a head-like rod-shaped part aligned and supplied by the vibrating ball feeder 210 is moved from its discharge end (not shown) by a vibrating body (not shown). It moves to the rectilinear feeder 230 that is linearly driven, thereby aligning and supplying the legs with the legs down while supporting the head seating surface, and then a pair of circulation belts 221 that are narrow from the rectilinear feeder 230 and have a round cross section. Is moved to a belt conveying unit 220 disposed on both sides with the center line interposed therebetween, and the head seat surface of the component (screw) is supported by a pair of circulation belts 221 and conveyed in a state where the legs are down. During this conveyance, the quality of the parts is judged. As shown in FIG. 7, the tip shape of the linear feeder is, for example, a pointed shape so that the parts can move without clogging on the center line of the belt conveyance unit.

Japanese Patent Laid-Open No. 10-236625 JP 2000-247422 A

  As described above, when determining whether or not a headed bar-shaped part is non-defective or defective, it is necessary to immediately make a pass / fail judgment in a continuous conveyance state without stopping the conveyance of the part in a state where the parts are aligned and conveyed by a pair of circulation belts Therefore, if the parts fed from the ball feeder are directly supplied to the belt conveyance unit, no problem will occur. However, in reality, even if this belt conveyance unit is provided at the tip of the chute of the ball feeder, the belt conveyance unit. Is in contact with the main body of the ball feeder, so mounting is impossible. Further, when the end of the chute of the ball feeder is positioned at a position far from the center of the ball feeder in order to eliminate this contact, the vibration type ball feeder has a distance (A) and ( B) If the tip of the chute moves away from the range surrounded by (see FIG. 3), the vibration for supplying the component is not accurately transmitted to the tip of the feeder, and the component supply becomes unstable. Could not be adopted. Furthermore, in order to solve this problem, a linear feeder is arranged at the tip of the chute for aligning and supplying the components with a ball feeder that stores a large amount of components, and the components are supplied to the belt conveying unit through this. However, skill is required to adjust the delivery between the rail of the linear feeder and the belt conveyance unit. In addition, if this adjustment is insufficient or the headed bar-like part is small, clogging has occurred at this joint. In addition, even if you try to change the flow speed of the headed bar-shaped part, the rail angle of the linear feeder cannot be changed, and various parts such as jumping of parts and falling over at the connection point between the rail of the linear feeder and the belt conveyance unit, etc. Has a problem.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for aligning and supplying a headed bar-shaped part that eliminates the above-described problems and enables the delivery of the part reliably at a connecting point regardless of the size of the headed bar-shaped part with a simple configuration. That is.

  The object of the present invention is to convey a vibrating ball feeder 10 and a belt-like component with a head supplied from the ball feeder 10 while supporting the seating surface of the head 2 and with the legs 3 down. In the component feeder comprising the unit 20, a feeder rail 14 that supports the seating surface of the head 2 with the legs 3 positioned downward is disposed at the discharge end 13 of the ball feeder 10. An intermediate rail 30 is arranged at the leading end of the rail so that the upper surface of the rear end coincides with the upper surface of the linear portion of the feeder rail 14 and can swing a predetermined angle around the upper surface corner of the rear end. This is achieved by providing an apparatus for aligning and feeding head-shaped rod-shaped parts provided with the belt conveyance unit 20 close to the tip of the rail 30.

In the above invention, the intermediate rail has a sliding surface 34a at a position equal to or lower than the upper surface thereof, and the tip protrudes forward from the intermediate rail so as to approach the upper surface of the circulation belt 21 constituting the belt conveying unit 20. Since the thin plate-like rail plate 34 is fixed, the headed bar-like component is supported by the belt conveying unit on the seat surface of the head and conveyed without clogging with the leg portion down. .

  According to the present invention, it is possible to dispose a head-like rod-shaped part by simply disposing an intermediate rail having a simple configuration at the tip of a feeder rail connected to the discharge end of a vibration type ball feeder and providing an existing belt conveyance unit. Can be reliably supplied to the belt conveying unit. In addition, the inclination angle of the mediation rail can be adjusted according to the shape and size of the headed bar-shaped parts aligned and supplied from the ball feeder, so the headed bar-shaped part jumps at the delivery point where the headed bar-shaped parts are supplied to the belt transport unit. And the fall was resolved. Furthermore, since a thin plate-like rail plate is fixed to the upper surface of a part of the intermediate rail, and the tip of this is protruded and fixed to the upper surface of the circulation belt of the belt conveyance unit, the flow of parts at the delivery point becomes smooth, Clogging and scattering were eliminated and the operating rate was improved. Moreover, it is easy to align and fine-tune the linear tip of the feeder rail from the ball feeder to the belt transport unit, shortening the setup adjustment time, reducing the number of machine parts, and providing the machine at low cost. There are specific effects such as being possible.

It is a principal part enlarged front view which shows embodiment of this invention. It is a principal part enlarged plan view which shows embodiment of this invention. It is a whole top view of the parts sorter which combined the parts supply machine. FIG. 4 is a front view showing a part of FIG. 3. It is a front view which shows the combination of a general ball feeder and a rectilinear feeder. It is a top view which shows the prior art example of this invention. It is a principal part enlarged plan view which shows another prior art example.

  The best mode for carrying out the present invention will be described below with reference to FIGS. 3 and 4, reference numeral 10 denotes a large amount of the screw 1 which is an example of a headed bar-shaped part, and when this is driven by vibration, the screw 1 is gradually aligned and supplied on the spiral chute 12 of the ball feeder main body 11. It is a ball feeder. The discharge surface 13 of the ball feeder 10 supports the seat surface of the head 2 and is curved along the outer periphery of the ball feeder main body 11 so as to be aligned and supplied with the legs 3 facing down, and the tip is straight. A feeder rail 14 is provided, and a belt transport unit 20 that transports forward while supporting the head seating surface of the screw 1 with the head 2 facing up and the legs 3 facing down at the front end of the feeder rail 14. Is arranged. The belt conveying unit 20 is arranged so as to circulate and move a pair of two circulation belts 21 linearly arranged on both sides of the feeder rail 14 with a center line extension line interposed therebetween, and the circulation belt 21 at the same speed. And a pulley 22. On the other hand, the circulation belts 21 are parallel to each other so that the legs 3 of the screws 1 are fitted, and the circulation belts 21 are thin and have a round cross section. The cross-sectional shape may be a square shape other than a circle, and the shape is not particularly limited as long as the head seating surface of the screw can be supported.

  In addition, the belt conveying unit 20 is provided with a necessary number of sensors 23 for determining the appearance of the screw head 2 and the leg 3 such as the shape or size of the belt. A pass / fail judgment corresponding to a judgment item necessary at the time of conveyance is performed. In front of the belt conveying unit, a non-defective product discharge path 24 for guiding screws distributed to a non-defective product and a non-defective product by an output signal of a control unit (not shown) that receives a signal from the good / bad determination sensor 23, and a defective product discharge Each of the passages 25 is provided to form a sorter that sorts non-defective and defective products of the screw 1.

  A screw 1 as a headed rod-like component that has been aligned and supplied between the ball feeder 10 and the belt conveying unit 20 is attached to a pair of circulating belts 21 that constitute the belt conveying unit 20 in parallel with the head 2. An intermediate rail 30 is disposed so that the seating surface of the ball feeder 10 is supported. As shown in FIGS. 1 and 2, the rear end of the intermediate rail 30 is positioned at the discharge end 13 of the ball feeder 10 and the leg. A position that is the same as or slightly lower than the top surface of the feeder rail 14 so that the front end portion is linear so as to support the seating surface of the head 2 with the portion 3 down. It has become. The intermediary rail 30 can swing up and down by a predetermined angle around the upper corner (a) of the rear end. By changing this angle, the size of the screw 1 or the length of the leg 3 can be changed. The flow of the screw 1 can be adjusted. On the other hand, the front end of the intermediate rail 30 is made as thin as possible so as to approach the upper surface of the circulation belt 21 of the belt conveying unit 20, so that the belt conveying unit 20 can be provided close to the intermediate rail 30.

  A mounting plate 31 is fixed to the rear portion of the intermediate rail 30, and a long hole 32 is formed in the mounting plate 31 having a width larger than the diameter of the leg portion of the bolt 33 passing through the mounting plate 31 and extending in the horizontal direction. . The mounting plate 31 is fixed to the feeder rail by passing the elongated hole 32 and tightening the bolt 33. The mounting angle of the intermediate rail 30 is adjusted by loosening the bolt 33 and the range of the elongated hole 32 of the mounting plate 31. Just move and adjust.

  In addition to thinning the tip of the intermediate rail 30, for example, the intermediate rail 30 has a sliding surface 34a at the same position as the upper surface or lower than the upper surface, and the tip protrudes forward from the intermediate rail 30 to constitute the belt conveyance unit 20. It is good also as a structure which fixes the thin plate-shaped rail plate 34 arrange | positioned so that the upper surface of the circulation belt 21 may be approached. This is to ensure that the screw 1 supplied while being supported by the head seating surface is supplied without being caught at the joint, and that the rail plate 34 allows the smooth and smooth delivery of the screw 1 more accurately and stably. Can be obtained.

  Further, the joining position of the feeder rail 14 and the intermediate rail 30 of the vibration type ball feeder 10 is such that the ball feeder main body 11 of the ball feeder 10 is stored in the ball 15 by vibration driving by a vibrating body (not shown). When the range in which this vibration is optimally applied was investigated, specifically in FIG. 3, for example, when the diameter of the ball 15 is 300 mm, the distance (A ) Is about 70 mm from the center, and the distance (B) is limited to about 180 mm. The distances (A) and (B) are proportional to the diameter of the ball 15. From this, it became clear that the joining position is the optimum joining position within the range surrounded by the distances (A) and (B) from the center of the ball feeder main body 11.

  In such a configuration, when a screw 1 of a predetermined size is supplied, the attachment angle of the relay rail 30 is adjusted in the range of the predetermined angle so that a flow matching the screw 1 is obtained in advance. In this adjustment, the bolt 33 is loosened so that the other end of the mounting plate 31, one of which is integrated with the intermediary rail 30 on the feeder rail 14, is temporarily movable, and the upper end corner of the rear end of the intermediary rail 30 is at the corner of the feeder rail 14. The attachment angle of the mediation rail 30 is set while keeping it coincident with the tip. After adjusting the angle in this way, the adjustment is completed by retightening the loosened bolt 33.

  When the operation start signal is input after adjusting the flow of the screw 1 to the optimum state in this way, the screw 1 stored in a large amount in the ball 15 of the ball feeder 10 is gradually discharged from the discharge end of the ball feeder 10. Move to the 13th side. Thereafter, as shown in FIGS. 1 and 2, the screws 1 are aligned and supplied in a state where the legs are faced down while the head seat surface is supported by the feeder rail 14. Then, the screw 1 enters the mediation rail 30. The mediation rail 30 is subjected to slight vibration of the ball feeder 10 and is inclined at a predetermined angle, so that it is stably supplied onto the circulation belt 21 in the front. Is done.

  Further, the screw 1 is supplied by the vibration of the ball feeder 10 up to the intermediate rail 30, and as is clear from the above description, the vibration of the tip of the feeder rail 14 is the distance (A), (B). Since it is located within the range, it is possible to always supply the screw 1 forward. For this reason, the screws 1 that are continuously aligned and supplied continue to enter the intermediate rail 30 and are sent to the belt conveying unit 20 with the head 2 facing up and the legs 3 facing down. In this supply state, if for some reason the supply of the screw 1 on the intermediate rail 30 is hindered, for example, if the screw 1 is clogged or scattered, the operation is stopped and then the bolt 33 is loosened and the angle is again set. Such a problem is solved by performing the adjustment.

  The present invention is an apparatus for aligning and supplying a headed bar-shaped part having an intermediate rail 30 connecting between the ball feeder 10 and the belt conveying unit 20 in the supply of a headed bar-shaped part such as a screw, rivet, pin or bolt. Therefore, it is possible to stably supply the parts with a simple configuration in selecting the quality of the parts. Therefore, it is possible to reduce the cost of the machine, and it is expected to be used for labor-saving equipment.

DESCRIPTION OF SYMBOLS 1 Screw 2 Head 3 Leg 10 Ball feeder 11 Ball feeder main body 12 Spiral chute 13 Discharge end 14 Feeder rail 15 Ball 20 Belt conveyance unit 21 Circulation belt 22 Pulley 23 Sensor 24 Non-defective product discharge path 25 Defective product discharge path 30 Mediation rail 31 Mounting plate 32 Long hole 33 Bolt 34 Rail plate 34a Sliding surface

Claims (2)

  A vibration-type ball feeder (10) and a belt conveying unit that conveys a head-like rod-shaped component supplied from the ball feeder in a state where the seat surface of the head (2) is supported and the leg (3) is down. (20), a feeder rail (14) that supports the seating surface of the head in a state where the leg portion is located at the discharge end (13) of the ball feeder is disposed, and a straight line of the feeder rail is provided. An intermediate rail (30) is disposed at the front end of the rail so that the upper surface of the rear end coincides with the upper surface of the linear portion of the feeder rail and can swing a predetermined angle around the upper surface corner of the rear end. An apparatus for aligning and feeding head-shaped rod-shaped parts, characterized in that the belt conveying unit is provided close to the tip of the intermediate rail.   The intermediate rail has a sliding surface (34a) at the same level as or lower than the upper surface thereof, and the tip protrudes forward from the intermediate rail so as to approach the upper surface of the circulation belt (21) constituting the belt conveying unit. 2. An apparatus for aligning and feeding head-shaped rod parts according to claim 1, wherein a thin plate-like rail plate (34) is fixed.

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