JP2022091252A - Bolt sort and transfer device - Google Patents

Abstract

To make it possible to select bolts of various standards through a simple work.SOLUTION: A component transfer device includes: a general route 35 that conveys both a regular bolt RB and bad bolt BB, with respective tips facing in the same direction; and a sorting gauge 70 provided at a downstream end of the general route 35 and that separates the regular bolt RB and the bad bolt BB. The sorting gauge 70 includes: a pair of gate members 74 composing a sorting path through which one of the regular bolt RB and the bad bolt BB can pass and the other bolt cannot pass; and an adjustment screw 75 capable of adjusting an angle between the pair of gate members 74 to an angle corresponding to an angle of the tip of the one bolt.SELECTED DRAWING: Figure 7

Description

The techniques disclosed herein belong to the technical field relating to bolt sorting and transfer devices.

Conventionally, in automobile assembly work, connecting parts such as bolts have been welded to a work obtained by press-molding a steel plate or the like. These bolts and the like are transferred by the parts supply device. As a component transfer device, a device that aligns and transports a large number of components is known (for example, Patent Document 1). Defective products may be included in a large number of parts, and the parts supply device is required to have a function of selecting defective products from genuine parts.

For example, in Patent Document 1, a model gate having a cross-sectional shape of a passage through which only regular parts can pass is provided on the component transport surface, and the component transport surface at the location where the model gate on the component transport surface is provided is an open / close bottom member that can be opened and closed. Disclosed is a component transfer device that is formed and provided with an actuator that opens and closes an opening / closing bottom member.

Further, the component supply device of Patent Document 1 is configured to detect the clogging with a photoelectric sensor and open / close the opening / closing bottom member by an actuator when a defective product is clogged in the model gate.

Japanese Unexamined Patent Publication No. 9-2643

By the way, there are multiple standards for bolts depending on the shape of the tip. Since Patent Document 1 uses one fixed model gate, when selecting and transporting bolts of different standards, it is necessary to replace the entire model gate every time the bolt standard is changed. The model gate is cumbersome and cumbersome because it needs to be accurately aligned with the transport path so that while regular parts pass through, it is clogged with defective products.

The technology disclosed here was made in view of these points, and the purpose is that even if the bolt standard is changed, it is possible to select bolts of the new standard with a simple operation. The purpose is to provide a bolt sorting and transfer device.

In order to solve the above problems, the first aspect of the technique disclosed here is intended for a bolt sorting and transferring device that sorts and transfers a regular bolt and a defective bolt having a shape different from that of the regular bolt. A control path for transporting both the regular bolt and the defective bolt with their tips aligned, and a sorting gauge provided at the downstream end of the control path to sort the regular bolt and the defective bolt. The sorting gauge comprises a pair of gate members constituting a sorting path through which one of the regular bolt and the defective bolt can pass and the other bolt cannot pass through, and the pair of gates. It is characterized by having an angle adjusting mechanism capable of adjusting the angle between the members to an angle corresponding to the angle of the tip of the one bolt.

A second aspect of the technique disclosed herein is, in the first aspect, the sorting gauge further comprising a gauge body, each of which the gate member is configured with a plate-shaped wing member, the angle thereof. The adjusting mechanism is composed of a mounting member that mounts and supports each one end of each gate member to the gauge body, and when the coupling force of the mounting member to the gauge body is loosened, each other end of each gate member. When the portion becomes rotatable around the mounting member as a fulcrum and the coupling force of the mounting member with respect to the gauge body is increased, the angle between the gate members becomes a desired angle. It is characterized in that it is fixed in a state of being fixed.

A third aspect of the technique disclosed herein is, in the second aspect, the control path through which the first path through which one bolt passes and the other bolt of the regular bolt and the defective bolt. It is branched into two paths, the first path is continuously provided in the sorting path, and the second path extends with respect to the controlling path in an inclined direction in the width direction of the controlling path. The sorting gauge further has a guide surface that extends toward the second path and guides the other bolt to the second path, with each gate member arranged along the guide surface. It is characterized by being done.

According to the first aspect of the technique disclosed herein, the angle adjusting mechanism allows the angle between the pair of gate members to be changed according to the tip shape of the regular bolt or the defective bolt. For example, when the angle between the pair of gate members is adjusted so as to correspond to the tip shape of the regular bolt, it is possible to form a sorting path through which the regular bolt can pass and the defective bolt cannot pass. Further, when the standard of the regular bolt is changed to a standard having a different tip shape, the angle between the pair of gate members may be changed according to the changed tip shape of the regular bolt. On the other hand, when the angle between the pair of gate members is adjusted so as to correspond to the tip shape of the defective bolt, it is possible to form a sorting path through which the defective bolt can pass and the regular bolt cannot pass. .. In this case, in particular, it is possible to remove a defective bolt having a sharper tip than a regular bolt. Therefore, even if the standard of the regular bolt is changed, the angle between the pair of gate members can be changed by the angle adjustment mechanism without removing the sorting gauge, so that the bolt of the new standard can be sorted by a simple operation. Can be made possible.

According to the second aspect of the technique disclosed herein, it is possible to form a sorting path corresponding to various bolts with a simple configuration. Therefore, various bolts can be sorted by a simple operation.

According to a third aspect of the technique disclosed herein, one of the regular bolts or defective bolts passes through the sorting path by force in the transport direction, while the other of the regular bolts or defective bolts. After abuting on the gate member, the bolt is automatically guided to the second passage along the guide surface by a force in the transport direction. This makes the sorting work even easier.

FIG. 1 is a perspective view showing a bolt sorting and transferring device according to the first embodiment. FIG. 2 is a side view of the bolt sorting / transfer device. FIG. 3 is a front view showing a guide plate for guiding the bolt to the transport path. FIG. 4 is a perspective view of the sorting gauge. FIG. 5 is a two-view view of the sorting gauge as viewed from the front side and the upstream side in the transport direction, respectively. FIG. 6 is a view of the sorting gauge viewed from a direction perpendicular to the guide surface, and shows a state in which the gate member and the adjusting bolt are removed. FIG. 7 is a diagram showing a state in which the angle between the gate members is changed according to the standard of the bolt. FIG. 8 is an operation diagram showing how the parts are sorted by the sorting gauge, and shows a state in which the parts are conveyed along the control route. FIG. 9 is an operation diagram showing how parts are sorted by a sorting gauge, showing a state in which regular parts enter the sorting path and defective products are guided to the discharge path by a guide surface. FIG. 10 is a two-view view of the sorting gauge according to the second embodiment as viewed from the front side and the direction perpendicular to the guide surface.

Hereinafter, exemplary embodiments will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is essentially merely an example.

(Embodiment 1)
<Device configuration>
1 to 3 show a bolt sorting and transferring device 1. The bolt sorting / transfer device 1 includes a charging chute 2 fixed on a base 5, an apparatus main body 3, a rail 6 provided on the side of the base 5, and a box 7 for collecting defective products. .. A large number of bolts B in a loose state are thrown into the throwing chute 2. The apparatus main body 3 changes the direction of the head of the bolt B thrown into the throwing chute 2 into a unified posture, and conveys the bolt B to the rail 6. The rail 6 conveys the bolt B to the bolt transfer device (not shown). In the following description, the charging chute 2 side may be referred to as the front side, and the device main body 3 side may be referred to as the rear side. In addition, the right side when looking at the rear side from the front side is called the right side, and the left side may be called the left side.

The throwing chute 2 has a hopper cylinder portion 2a that opens up and down, and a tub-shaped chute portion 2b that has a substantially semicircular cross-sectional shape with an open upper surface. The chute portion 2b is fixed to the upper surface of the base 5 by a bracket 5b. The hopper cylinder portion 2a is integrated with the chute portion 2b. Here, the upper surface of the base 5 is composed of an inclined surface 5a that is inclined downward toward the rear side. Therefore, the shoot portion 2b is in an inclined posture along the inclined surface 5a. The front portion of the chute portion 2b communicates with the opening at the lower end of the hopper cylinder portion 2a. Through this opening, the bolt B thrown into the hopper cylinder portion 2a moves to the chute portion 2b. The bolt B that has moved to the chute portion 2b moves to the rear side along the inclination of the chute portion 2b.

The apparatus main body 3 is fixed to a low position (rear side position) of the inclined surface 5a. The device main body 3 includes a face plate 20. The face plate 20 has a rectangular shape that extends orthogonally to the inclination direction of the chute portion 2b. The front surface of the face plate 20 is arranged so as to face the side (front side) of the throwing chute 2 and to be inclined diagonally upward. The tip end portion (rear end portion) of the chute portion 2b is connected to the lower portion of the front surface of the face plate 20. As a result, as shown in FIG. 1, a bolt collecting portion 60 surrounded by the face plate 20 and the chute portion 2b is provided at the lower portion on the front surface side of the face plate 20. A plurality of bolts B are stored in the bolt collecting portion 60 in a non-aligned state.

As shown in FIG. 2, the apparatus main body 3 includes a plurality of suction means 40. The suction means 40 is provided on the rear side of the face plate 20. By forming a magnetic field, the suction means 40 sucks the bolt B, which is close to the face plate 20 among the bolts B located in the bolt collecting portion 60, to the face plate 20.

As shown in FIG. 3, the suction means 40 has a rotating head 41. The rotary head 41 has a pair of substantially columnar permanent magnets 43 for forming a magnetic field.

The device main body 3 includes a rotation driving means 50. As shown in FIG. 2, the rotation driving means 50 includes a holding portion 51 and a motor 52 as a driving portion. The holding portion 51 is formed by assembling two plate members in a cross shape around a central axis X orthogonal to the face plate 20. The suction means 40 are attached to the four tip portions of the holding portion 51, respectively. The motor 52 is arranged so that the rotation axis extends on the central axis X. The rotation shaft of the motor 52 penetrates the support plate 8 provided on the rear surface 22 side of the face plate 20. The front end portion of the rotating shaft of the motor 52 is fixed at the center position of the holding portion 51.

The motor 52 rotates the holding portion 51 around the central axis X. As a result, the suction means 40 rotates around the central axis X. At this time, the midpoint of the pair of permanent magnets 43 in the attracting means 40 draws a rotation locus passing through a specific circumferential line P centered on the central axis X. That is, the holding portion 51 of the rotation driving means 50 holds the suction means 40 on the specific circumferential line P. Further, the motor 52 of the rotation driving means 50 rotates the holding portion 51 around the central axis X to rotate and move the suction means 40 along the specific circumferential line P. As a result, the bolt B attracted to the magnetic field of the suction means 40 and attracted to the face plate 20 rotates and moves to a predetermined position on the upper part of the front surface of the face plate 20.

In the present embodiment, the suction means 40 rotates counterclockwise when viewed from the front side. The bolt collecting portion 60 is located in the lower portion of the specific circumferential line P. That is, the suction means 40 passes behind the bolt collecting portion 60. Specifically, the suction means 40 passes through the rear side of the bolt collecting portion 60 with the face plate 20 interposed therebetween. As a result, the bolt B stored in the bolt collecting portion 60 is sucked by the suction means 40 via the face plate 20.

The device main body 3 has a guide plate 30. The guide plate 30 has a rectangular shape similar to that of the face plate 20. The guide plate 30 is superposed on the front surface of the face plate 20 and is fixed to the face plate 20. The bolt B adsorbed on the front surface of the face plate 20 by the suction means 40 is attracted to the suction means and moves on the front surface of the face plate 20 as the suction means 40 rotates. The thickness of the guide plate 30 is smaller than the length of the bolt B.

As shown in FIG. 3, an opening 33 penetrating in the plate thickness direction is provided near the center of the guide plate 30. The lower portion of the opening edge portion 33a of the opening portion 33 has a substantially arc shape corresponding to the cross-sectional shape of the chute portion 2b. The opening edge portion 33a is located outside the specific circumferential line P. The opening edge portion 33a serves as a guide for guiding the bolt B sucked by the suction means 40 to the transport path 34 described later.

On the left side of the opening 33 of the guide plate 30, a transport path 34 for transporting the bolt B to the rail 6 is provided. The transport path 34 has a control path 35 through which all bolts B pass. The control path 35 has a groove shape with an open front side. The bottom of the groove of the control path 35 is formed by the face plate 20. That is, the control path 35 is formed by the guide plate 30 and the face plate 20 in cooperation with each other. Although not shown, the rear half of the control path 35 (the part on the face plate 20 side) is wide enough for the head of the bolt B to pass through, while the front half of the control path 35 is. It is narrower than the head of the bolt B and wider than the shaft of the bolt B. The control path 35 has an input port 35a that opens to the opening edge portion 33a at the upstream end. The bolt B attracted and conveyed by the suction means 40 is charged into the charging port 35a. Since the loading port 35a also has a groove shape as described above, the bolt B loaded from the loading port 35a is in a posture in which the head is located on the rear side (face plate 20 side) and the shaft portion is located on the front side. Become. Since the thickness of the guide plate 30 is smaller than the length of the bolt B, the bolt B that has entered the control path 35 is in a state where the tip end side portion of the shaft portion protrudes forward from the control path 35. All the bolts B passing through the control path 35 include a regular bolt RB that satisfies a predetermined shape standard and a defective bolt BB that does not satisfy the shape standard.

The portion of the control path 35 in the vicinity of the input port 35a extends along the tangential direction of the opening edge portion 33a. The control path 35 extends downwardly from the input port 35a toward the left side, and then extends straight toward the lower side. That is, a part of the control path 35 is formed so that the transport direction is the vertical direction.

The downstream end of the control route 35 is branched into a regular transport route 36 and a discharge route 37. The regular transport path 36 is a path through which the regular bolt RB is transported. The discharge path 37 is a path for discharging the defective bolt BB. The regular transport path 36 and the discharge path 37 have a groove shape with an open front side, similarly to the control path 35. The bottoms of the grooves of the regular transport path 36 and the discharge path 37 are also formed by the face plate 20 in the same manner as the control path 35. That is, the regular transport path 36 and the discharge path 37 are also formed by the guide plate 30 and the face plate 20 in cooperation with each other. Similar to the control route 35, the regular transport path 36 and the discharge path 37 have a width such that the head of the bolt B passes through the rear portion, while the front portion is wider than the head of the bolt B. It is narrow and wider than the shaft of the bolt B. Further, since the thickness of the guide plate 30 is smaller than the length of the bolt B, the portion on the tip end side of each shaft portion of the regular bolt RB passing through the regular transport path 36 and the defective bolt BB passing through the discharge path 37 is the regular transport path 36. And, it is in a state of protruding forward from the discharge path 37.

The regular transport path 36 is continuous with the downstream end of the control path 35 and extends straight downward. The downstream end of the regular transport path 36 is open to the lower end of the guide plate 30.

The discharge path 37 extends in an inclined direction in the groove width direction of the control path 35 so as to be separated from the regular transport path 36. Specifically, the discharge path 37 extends inclined to the left toward the lower side. The downstream end of the discharge path 37 is a side end of the guide plate 30, more specifically, a discharge port 37a opened at the left side end.

A sorting gauge 70 for sorting the regular bolt RB and the defective bolt BB is provided at the branch portion between the regular transport path 36 and the discharge path 37, that is, at the downstream end of the control path 35. The configuration of the sorting gauge 70 will be described later.

The rail 6 is located below the opening at the downstream end of the regular transport path 36. The groove width of the rail 6 is set to be larger than the shaft portion of the regular bolt RB and smaller than the head portion. The regular bolt RB that has fallen onto the rail 6 through the regular transport path 36 has its head caught on the upper surface of the rail 6 and rotates so that the shaft portion enters the groove with the caught head as a fulcrum. As a result, the regular bolt RB is set on the rail 6. The regular bolt RB set on the rail 6 is conveyed to the component transfer device along the rail 6.

In the box 7, the defective bolt BB discharged from the discharge port 37a is inserted through the discharge path 37. The defective bolt BB discharged from the discharge port 37a is put into the box 7 along the extension line of the discharge path 37, passing above the rail 6. The box 7 is configured to be removable with respect to the base 5.

<Sort gauge>
Next, the configuration of the sorting gauge 70 will be described in detail. In the following description, the front-back, up-down, and left-right directions are the front-back, up-down, and left-right directions when the sorting gauge 70 is attached to the bolt sorting and transferring device 1 described above. It is not limited.

As shown in FIGS. 4 and 5, the sorting gauge 70 is configured by processing a metal block body. The sorting gauge 70 has a gauge body 71, a gangway 72 formed through the gauge body 71, and a guide surface 73 formed on a part of the outer peripheral surface of the gauge body 71. As shown in FIG. 3, the sorting gauge 70 is arranged at the downstream end of the control path 35.

As shown in FIG. 5, the gauge body 71 has a trapezoidal shape when viewed from the front. The gauge body 71 has a pair of legs 71a that form a part of the gangway 72. The upper surface of the left leg portion 71a constitutes a part of the guide surface 73. As shown in FIG. 8, the rear surface of the left leg portion 71a is detachably fixed to the front surface of the guide plate 30. The right leg 71a is longer than the left leg 71a. The right leg portion 71a is inserted into a recess provided in the guide plate 30, although detailed illustration is omitted. In the state of being inserted into the recess, the left side surface (the portion forming the gangway 72) of the right leg portion 71a is flush with the right front side surface of the control path 35 and the right front side surface of the regular transport path 36. become. As a result, the control route 35, the gangway 72, and the regular transport route 36 are in a continuous state except for the branch portion of the discharge route 37. The right leg 71a is also detachably fixed to the guide plate 30.

The gangway 72 is formed so as to penetrate the entire gauge body 71 (here, in the vertical direction). At the upstream end of the gangway 72, a pair of gate members 74 constituting a sorting path 72a through which the regular bolt RB can pass and the defective bolt BB cannot pass are provided. Each of the pair of gate members 74 is composed of a plate-shaped wing member. The pair of gate members 74 are attached and supported on the gauge body 71 with the front end portions of each other being overlapped with each other by the adjusting screw 75. More specifically, in a state where the pair of gate members 74 are fixed to the guide plate 30, the one farther from the discharge path 37 is on the upper side (upstream side in the control path 35), and the relative discharge path. They are stacked so that the one closer to 37 is on the lower side (downstream side in the control route 35). The pair of gate members 74 are mounted and supported on the gauge body 71 so as to be along the guide surface 73. The adjusting screw 75 constitutes a mounting member that mounts and supports each one end portion (here, each front end portion) of each gate member 74 to the gauge body 71.

The pair of gate members 74 are configured so that the angle between them can be adjusted. Specifically, when the fastening force of the adjusting screw 75 to the gauge body 71 is loosened, each gate member 74 becomes rotatable around the adjusting screw 75 as a fulcrum. With the adjusting screw 75 loosened, the angle between the gate members 74 was adjusted to a desired angle, and then the fastening force of the adjusting screw 75 to the gauge body 71 was increased again, and the angle became the desired angle. It is fixed in the state. Thereby, the angle between the gate members 74 can be adjusted to the angle corresponding to the angle of the tip of the regular bolt RB. More specifically, as shown in FIG. 5, the angle α between the gate members 74 when each gate member 74 is viewed from the upstream side of the control path 35 along the transport direction (hereinafter, simply the angle of the gate member 74). (Sometimes referred to as α) can be adjusted to an angle corresponding to the angle of the tip of the regular bolt RB. From this, the adjusting screw 75 constitutes an angle adjusting mechanism.

As shown in FIG. 6, the guide surface 73 of the gauge body 71 is provided with a plurality of (three in this case) screw holes 73a to which the adjusting screw 75 is fastened. By changing the screw hole 73a for fastening the adjusting screw 75, the height position of the gate member 74 with respect to the guide plate 30 can be adjusted. This makes it possible to perform sorting using the difference in the length of the bolt B.

FIG. 7 illustrates an example in which the angle α of the gate member 74 and the height position with respect to the control path 35 are changed according to the shape of the regular bolt RB. For example, as shown in FIG. 7A, when the bolt with a sharp tip is a regular bolt RB, the angle α of the gate member 74 is relatively small and the height position with respect to the control path 35 is relatively high. As a result, for example, a normal flat-tip bolt as shown in FIG. 7B comes into contact with the gate member 74 and cannot pass through the sorting path 72a. On the other hand, as shown in FIG. 7B, when the flat tip bolt is a regular bolt RB, the angle α of the gate member 74 is relatively large and the height position with respect to the control path 35 is relatively low. do. As a result, the bolt with a sharp tip as shown in FIG. 7A cannot pass through the sorting path 72a because the tip portion abuts on the gate member 74.

The guide surface 73 is formed at the position of the upstream end of the gangway 72 in the gauge body 71. As shown in FIGS. 8 and 9, the guide surface 73 is arranged so as to spread toward the discharge path 37. More specifically, the guide surface 73 is arranged so as to be continuous with the groove wall on the lower front side of the discharge path 37. In particular, the guide surface 73 located on the front side of the discharge path 37 is arranged so as to be flush with the groove wall on the lower front side of the discharge path 37. The guide surface 73 is arranged over the entire groove width direction of the control path 35. By arranging the guide surface 73 as described above, as shown in FIGS. 8 and 9, the gate member 74 also expands toward the discharge path 37. As a result, the upper surface of the gate member 74 has a function of guiding the defective bolt BB to the discharge path 37 like the guide surface 73.

Next, sorting between the regular bolt RB and the defective bolt BB by the sorting gauge 70 will be described. Here, a bolt having a pointed tip is assumed to be a regular bolt RB, and a bolt having a flat tip is assumed to be a defective bolt BB. The angle α of the pair of gate members 74 is adjusted to an angle corresponding to the regular bolt RB.

First, as shown in FIG. 8, the regular bolt RB and the defective bolt BB flow through the control path 35. At this time, the tip of the regular bolt RB and the defective bolt BB is in a state of protruding from the control path 35. The regular bolt RB and the defective bolt BB move in the control path 35 so as to fall naturally by gravity.

Next, as shown in FIG. 9, the regular bolt RB and the defective bolt BB reach the position of the sorting gauge 70. At this time, the regular bolt RB passes through the sorting path 72a formed by the gate member 74 and enters the gangway 72. After that, it enters the regular transport path 36. The regular bolt RB passes through the regular transport path 36 and then enters the rail 6 and is transported.

On the other hand, the tip of the defective bolt BB comes into contact with the gate member 74. More specifically, the defective bolt BB first comes into contact with the gate member 74 on the side far from the discharge path 37. By abutting on the gate member 74, a lateral force is applied to the defective bolt BB. As a result, the defective bolt BB is guided diagonally downward to the left along the gate member 74 (that is, along the guide surface 73) toward the discharge path 37. Next, the defective bolt BB comes into contact with the gate member 74 on the side closer to the discharge path 37. Again, the defective bolt BB is guided toward the discharge path 37 along the gate member 74. After that, the defective bolt BB comes into contact with the guide surface 73 and is guided toward the discharge path 37 along the guide surface 73. Then, after entering the discharge path 37, the defective bolt BB advances along the discharge path 37 due to gravity and is discharged from the discharge port 37a. The defective bolt BB enters the box 7 after being discharged from the discharge port 37a.

As described above, the bolt B thrown into the control path 35 from the bolt collecting portion 60 is sorted into a regular bolt RB and a defective bolt BB by the sorting gauge 70 by utilizing the force moving in the transport path 34.

When the flat tip bolt is used as a regular bolt RB, if the angle α and the height position of the gate member 74 are adjusted as shown in FIG. 7 (b), the bolt having a pointed tip is discharged as a defective bolt BB. can do.

<summary>
Therefore, according to the first embodiment, both the regular bolt RB and the defective bolt BB are provided at the control path 35 for transporting the normal bolt RB and the defective bolt BB with the directions of the tips aligned, and at the downstream end of the control path 35. A sorting gauge 70 for sorting defective bolts BB is provided. The sorting gauge 70 sets the angle between the pair of gate members 74 and the pair of gate members 74 constituting the sorting path 72a through which the regular bolt RB can pass and the defective bolt BB cannot pass, in the regular bolt RB. It has an adjusting screw 75, which can be adjusted to an angle corresponding to the angle of the tip. Thereby, the angle α of the pair of gate members 74 can be changed according to the tip shape of the regular bolt RB. When the standard of the regular bolt RB is changed to a standard having a different tip shape, the angle α of the pair of gate members 74 may be changed according to the tip shape of the regular bolt RB after the change. Therefore, even if the standard of the regular bolt RB is changed, the angle α of the pair of gate members 74 can be changed without removing the sorting gauge 70 from the guide plate 30, so that the bolt of the new standard can be easily operated. Can be sorted.

In particular, in the first embodiment, the sorting gauge 70 includes a gauge body 71, and each gate member 74 is composed of a plate-shaped wing member, and the fastening force of the adjusting screw 75 to the gauge body 71 is loosened. Occasionally, when the other end of each gate member 74 becomes rotatable around the adjusting screw 75 as a fulcrum and the fastening force of the adjusting screw 75 to the gauge body 71 is increased, each gate member 74 moves to each gate. The member 74 is fixed in a state where the angle α is a desired angle. As a result, the sorting path 72a corresponding to various bolts can be formed with a simple configuration, so that new various bolts can be sorted by a simple operation.

Further, in the first embodiment, the control path 35 is branched into a regular transport path 36 through which the regular bolt RB passes and a discharge path 37 through which the defective bolt BB passes, and the regular transport path 36 is continuous with the sorting path 72a. The discharge path 37 extends in an inclined direction in the width direction of the control path 35 with respect to the control path 35, and the sorting gauge 70 expands toward the discharge path 37 and discharges the defective bolt BB. A guide surface 73 for guiding to the route 37 is further provided, and each gate member 74 is arranged along the guide surface 73. As a result, the regular bolt RB passes through the sorting path 72a by the force in the transport direction, while the defective bolt BB automatically abuts along the guide surface 73 by the force in the transport direction after coming into contact with the gate member 74. Guided to the discharge route 37. This makes the sorting work even easier.

In particular, in the first embodiment, of the pair of gate members 74, the gate member 74 on the side farther from the discharge path 37 is located relatively upstream of the control path 35. As a result, when the defective bolt BB moves toward the discharge path 37, the defective bolt BB is prevented from being caught by the gate member 74 and the defective bolt BB being dammed by the gate member 74. As a result, the defective bolt BB flows smoothly into the discharge path 37. As a result, the sorting work can be made easier.

Further, in the first embodiment, a plurality of screw holes 73a are provided in the gauge body 71, and by changing the screw holes 73a for fastening the adjusting screw 75, the height position of the gate member 74 with respect to the guide plate 30 can be changed. It is configured to be adjustable. As a result, sorting using the difference in the length of the bolt B becomes possible, so that the sorting accuracy can be improved.

(Embodiment 2)
Hereinafter, the second embodiment will be described in detail. In the following description, the parts common to the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

The second embodiment is different from the first embodiment in that the guide surface 73 is provided with a plurality of protrusions 276 that assist in setting the angle of the gate member 274. Further, each gate member 274 is provided with an engagement hole 274a that engages with the protrusion 276. When the engagement hole 274a of each gate member 274 is engaged with the protrusion 276, the angle of the gate member 274 is set to a specific angle. Then, if the adjusting screw 75 is tightened in this state, the angle between the gate members 274 can be fixed to a specific angle. From this, the protrusion 276 constitutes a part of the angle adjusting mechanism.

The protrusion 276 is positioned according to the shape of the tip of a typical bolt, and the angle of the gate member 274 can be easily set by using the engagement hole 274a of each gate member 274 and the protrusion 276. be able to. This makes it possible to sort bolts of various standards with a simpler operation.

(Other embodiments)
The technique disclosed herein is not limited to the above-described embodiment, and can be substituted as long as it does not deviate from the gist of the claims.

For example, in the above-mentioned embodiments 1 and 2, the regular transport path 36 is continuously formed in the control path 35, and the regular bolt RB can pass through the sorting path 72a. Not limited to this, the discharge path 37 may be continuously formed in the control path 35, and the sorting path 72a may be configured to allow the defective bolt BB to pass through. In this case, the regular transport path 36 is inclined in the width direction of the control path 35 and extends away from the discharge path 37. Further, the discharge port 37a opens on the lower surface of the guide plate 30, and the box 7 is arranged directly below the discharge port 37a. Further, the rail 6 is arranged so as to be able to receive the regular bolt RB thrown in from the left side surface portion of the guide plate 30. Then, the regular bolt RB is guided by the gate members 74, 274 and the guide surface 73 and moves toward the regular transport path 36.

Further, in the above-mentioned first and second embodiments, the bolt B is sorted only by the sorting gauge 70. Not limited to this, for example, a gauge for selecting the bolt B may be separately provided in the input port 35a according to the length of the bolt B.

Further, in the above-described first and second embodiments, the gate member 74 is composed of a plate-shaped wing member. Not limited to this, for example, it may be composed of a block body provided in the gangway 72. In this case, for example, the angle between the gate members 74 can be adjusted by attaching the gears to each of the gate members 74 and rotating the gears in opposite directions.

The above embodiments are merely examples, and the scope of the present disclosure should not be construed in a limited manner. The scope of the present disclosure is defined by the scope of claims, and all modifications and changes belonging to the equivalent scope of the scope of claims are within the scope of the present disclosure.

The technique disclosed herein is useful as a parts transfer device for selecting and transferring a regular part and a defective product having a shape different from that of the regular part.

1 Bolt sorting and transfer device 35 Control route 36 Regular transport route (first route)
37 Discharge route (second route)
70 Sorting gauge 71 Gauge body 73 Guide surface 74 Gate member 75 Adjustment screw (angle adjustment mechanism)
274 Gate member 276 Protrusion (angle adjustment mechanism)
B bolt (part)
RB regular bolt (regular part)
BB defective bolt (defective product)

Claims (3)

A bolt sorting and transfer device that sorts and transfers regular bolts and defective bolts that have a different shape from the regular bolts.
A general route for transporting both the regular bolt and the defective bolt with the tips aligned.
A sorting gauge provided at the downstream end of the control path to sort out the regular bolt and the defective bolt is provided.
The sorting gauge is
A pair of gate members constituting a sorting path through which one of the regular bolt and the defective bolt can pass and the other bolt cannot pass through.
An angle adjusting mechanism capable of adjusting the angle between the pair of gate members to an angle corresponding to the angle of the tip of the one bolt.
Bolt sorting and transfer device characterized by having. In the bolt sorting and transferring device according to claim 1,
The sorting gauge further includes a gauge body.
Each of the gate members is composed of a plate-shaped wing member.
The angle adjusting mechanism is composed of a mounting member that mounts and supports each one end of each gate member to the gauge body.
When the coupling force of the mounting member to the gauge body is loosened, each other end of each gate member becomes rotatable around the mounting member as a fulcrum, and the coupling force of the mounting member to the gauge body is increased. At that time, the bolt sorting and transferring device is characterized in that each of the gate members is fixed in a state where the angle between the gate members is a desired angle. In the bolt sorting and transferring device according to claim 2,
The control path is branched into a first path through which one of the bolts passes and a second path through which the other bolt of the regular bolt and the defective bolt passes.
The first path is continuously provided in the sorting path and is provided.
The second route is inclined and extends in the width direction of the controlled route with respect to the controlled route.
The sorting gauge further comprises a guide surface that extends towards the second path and guides the other bolt to the second path.
Each of the gate members is a bolt sorting and transferring device, characterized in that the gate members are arranged along the guide surface.

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