JP2008114186A - Similar bolt sorting chute - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide similar bolt sorting chute which enables the sorting of two kinds of bolts with different thicknesses of the head parts in the axial direction with extremely simple configuration and a stable drop of them to two kinds of dropping ports. <P>SOLUTION: The similar bolt sorting chute 1 slides bolts having disk-like head parts and sort the bolts into small head bolts and large head bolts with thicker thickness than that of the head parts of the small head bolts in the axial direction. The similar bolt sorting chute 1 passes the small head bolts under a sorting plate 3 and drops them to a terminal dropping port 23 in the case the bolts sliding on a groove-like lane 21 are the small head bolts and on the other hand, brings the head parts of the large head bolts into contact with an upstream side slanting side face 31 in the sorting plate 3 and drops the large head bolt to the branched dropping port 22 in the case the bolts sliding on a groove-like lane 21 are the large head bolts. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a similar bolt sorting chute capable of sorting a small head bolt and a large head bolt from a plurality of bolt groups.

For example, in the welding process of automobile structural parts manufactured by welding welding bolts to a steel frame, an operator takes out only one or a predetermined number of bolts from a box that stores a plurality of bolts, This bolt is placed at a specified position for welding.
When supplying bolts one by one or a predetermined number of bolts to a predetermined location such as an operator or an apparatus, a plurality of bolts are arranged in a row on the rail, and the bolts are slid down one by one or by a downhill regulating means. It is conceivable to supply bolts by the number.

As a technique for supplying bolts one by one or a predetermined number of bolts to a predetermined location of an apparatus or the like, for example, there is a multi-row supply device for headed shaft bodies disclosed in Patent Document 1. And in patent document 1, the shaft body with a head dropped from the inside of a drum can be distributed and flowed down to each conveyance rail, and a plurality of shaft bodies with a head are supplied individually and simultaneously in a fixed posture. We are doing something that can be done.
Further, Patent Document 2 discloses an automatic supply device for welding bolts that is supplied from a hopper that accommodates welding bolts to the end of the rail by placing the heads of the bolts on an inclined rail and aligning them in a row. Yes. And in patent document 2, even if the welding bolt continuously extruded from a rail overlaps on a rail, the device which can be reliably isolate | separated is performed.

  However, in the prior arts such as Patent Documents 1 and 2 above, when two types of bolts are mixed and flowed down on one rail, a device that can separate these two types of bolts with a simple structure has been made. Absent. That is, for example, in the welding process, when similar bolts having different head axial lengths are mixed in regular bolts for welding, the similar bolts can be separated and taken out from the regular bolts. There is no ingenuity.

JP-A-7-81731 JP-A-10-109750

  The present invention has been made in view of such a conventional problem, and with a very simple configuration, two types of bolts having different head axial thicknesses are separated and stably dropped into two types of drop openings. It is intended to provide a similar bolt sorting chute that can.

The present invention slides down a bolt having a disk-shaped head, and separates the bolt into a small head bolt and a large head bolt having a larger axial thickness of the head than the small head bolt. Bolt sorting shoot,
The similar bolt separation chute has a chute body portion installed in a state where it is inclined downward with respect to the bolt down direction,
The chute body portion includes a grooved lane for sliding down the bolt, a terminal drop port formed at a downstream tip position of the grooved lane, and a branching drop port formed in the middle of the grooved lane. The grooved lane, the terminal dropping port, and the branch dropping port are formed from the upper surface of the chute body part,
The groove-like lane includes a slit-like groove portion for allowing the threaded portion of the bolt to pass therethrough, and a pair of step-like groove portions for forming the head portion and sliding down on both sides of the slit-like groove portion,
A sorting plate having an upstream inclined side surface that obliquely crosses the upper surface of the chute main body is disposed at a downstream position of the branch drop port on the upper surface of the chute main body.
The branch drop port is formed so as to be biased toward the one stepped groove portion through the slit groove portion, and the upstream inclined side surface of the one stepped groove portion is downstream in the downhill direction. The upper surface of the chute main body is obliquely crossed in a state located at
The groove-shaped lane is inclined in a cross-sectional direction perpendicular to the downhill direction with the one step-shaped groove portion positioned vertically above in the state where the chute body portion is installed,
The small head bolt that slides down the grooved lane passes below the sorting plate and drops to the terminal drop port, while the large head bolt that slides down the grooved lane separates the head from the sorting lane. The similar bolt sorting chute is configured to abut on the upstream inclined side surface of the plate for dropping to the branch dropping port (Claim 1).

The similar bolt sorting chute according to the present invention can sort two types of bolts having different axial thicknesses of the head without using a special electrical or mechanical mechanism by devising the structure. Is.
The similar bolt sorting chute according to the present invention has an extremely simple configuration using the chute main body portion having the groove lane, the terminal dropping port and the branch dropping port, and the sorting plate.

More specifically, the groove-shaped lane includes a slit-shaped groove portion and a pair of step-shaped groove portions, and the small head bolt and the large head bolt allow the screw portion to pass through the slit-shaped groove portion and the head. The part can be placed on a pair of stepped grooves and the grooved lane can be slid down.
And, in particular, the bolt that slides down the grooved lane by devising the state of formation of the upstream inclined side surface in the sorting plate, the state of formation of the branch drop port, and the state of inclination in the cross-sectional direction of the grooved lane, In the following manner, it can be classified into two types, a small head bolt and a large head bolt.

In the present invention, when the bolt that slides down the grooved lane is a small head bolt, the small head bolt terminates under the sorting plate without contacting the upstream inclined side surface of the sorting plate. Can drop into the drop opening.
By the way, if the chute lane is not inclined in the cross-sectional direction in the state where the chute main body is installed on a pedestal or the like, or the branch drop port is not formed biased to one stepped groove Even if the small head bolt does not contact the inclined side surface on the upstream side of the sorting plate, the small head bolt may fall to the branching outlet.

On the other hand, in the present invention, in the state where the chute main body is installed on a gantry or the like, the grooved lane has one stepped groove side that is the side on which the branch drop port is formed, and the other stepped groove portion side. It is inclined in the cross-sectional direction in a state of being positioned above the vertical direction. Further, the branching and dropping opening is formed so as to be biased toward the one stepped groove portion through the slit groove portion.
With these ideas, the small head bolt that slides down the groove-like lane can slide down with its own head weight acting on the other step-like groove portion more greatly than on the other step-like groove portion. Therefore, it is possible to prevent the small head bolt from being accidentally dropped to the branch dropping port, and it is possible to stably slide the small head bolt to the terminal dropping port.

On the other hand, in the present invention, when the bolt that slides down the grooved lane is a large head bolt, the head of the large head bolt may come into contact with the upstream inclined side surface of the sorting plate and fall to the branching outlet. it can.
By the way, if the upstream inclined side surface in the sorting plate is formed so as to cross the upper surface of the chute main body vertically, the large head bolt that slides down the grooved lane is the upstream inclined side surface in the sorting plate. When it comes into contact, the downhill is stopped, and there is a possibility that it cannot be dropped to the branch drop port.

  On the other hand, in the present invention, the upstream inclined side surface of the sorting plate is in a state where the one stepped groove portion side is located on the downstream side in the downhill direction compared to the other stepped groove portion side. Is formed so as to cross the upper surface diagonally. Thereby, when the head of the large head bolt that slides down the grooved lane comes into contact with the upstream inclined side surface, the large head bolt can be stably dropped to the branch drop port.

  Therefore, according to the similar bolt sorting chute of the present invention, two types of bolts having different head axial thicknesses can be sorted and stably dropped into two types of drop openings with a very simple configuration. .

  In the portion where the separation plate is disposed, the groove formation depth from the upper surface of the chute main body portion to the bottom surfaces of the pair of stepped groove portions is deeper than the axial thickness of the small head bolt and the axial thickness of the large head bolt. It is shallower than. Further, the upstream inclined side surface of the sorting plate is located on the downstream side in the vicinity of the branch drop port.

A preferred embodiment of the present invention described above will be described.
In the present invention, one of the small head bolt and the large head bolt can be a regular bolt used for assembly, and the other can be a similar bolt mixed in the regular bolt.
In this case, when a similar bolt is mixed in the normal bolt that slides down the grooved lane, the similar bolt can be separated and removed from the normal bolt. Therefore, after passing the grooved lane in the similar bolt sorting chute, it is possible to prevent a similar bolt unnecessary for assembly from being mixed into the regular bolt used for assembly.

Further, the groove-like lane is preferably formed in a state inclined with respect to the chute main body portion in the cross-sectional direction (claim 3).
In this case, it is not necessary to incline the shooter body part and the sorting plate itself with respect to the cross-sectional direction, and the installation of the shooter body part can be facilitated.

Further, it is preferable that the upstream inclined side surface of the sorting plate is inclined in a direction in which an angle between the upstream inclined side surface and the upper surface of the chute main body portion is perpendicular to the upper surface.
In this case, when the grooved lane is formed in a state inclined in the cross-sectional direction with respect to the chute main body, the large head bolt that slides down the grooved lane formed in the inclined state is in an inclined state. The head can be brought into contact with the upstream inclined side surface and dropped to the branch drop port. This facilitates the installation of the shooter main body, and allows the large head bolt to be stably dropped to the branch drop port.

Further, the chute body is configured to connect to a storage box for storing a plurality of bolts, and to arrange the bolts flowing down from the storage box in a row and sequentially slide down by arranging them in the groove lane, In the chute body portion, the downhill regulation that repeatedly performs the downhill blocking of the bolts arranged in the grooved lane and the release of the downhill blocking at a position upstream in the downhill direction from the position where the branch drop opening is formed. It is preferable to provide means (claim 5).
In this case, bolts can be supplied from the storage box to the grooved lane, and the downhill regulation means can prevent the plurality of bolts mounted on the grooved lane from falling down. Further, when the downhill regulating means is operated, a predetermined number of the plurality of bolts placed in the groove-like lane is caused to slide down and separated into small head bolts or large head bolts, and then to the terminal drop opening or branch drop opening. Can be dropped.

In addition, the downhill regulating means is configured to slide down only one bolt when the downhill prevention is canceled, and the branching and dropping port is provided with a position where the slit-shaped groove portion and the one step-shaped groove portion are formed. (Claim 6).
In this case, one bolt that slides down the grooved lane can be separated into a small head bolt or a large head bolt, and can be stably dropped to the terminal drop port or the branch drop port.

Further, the downhill regulating means is configured to slide down only two bolts when the downhill prevention is canceled, and the branch dropping port is downstream of the branch lane formed by branching from the grooved lane. The branch lane may be formed along the direction in which the upstream inclined side surface of the sorting plate is formed.
In this case, the two bolts that slide down the grooved lane can be simultaneously separated into a small head bolt or a large head bolt, and can be stably dropped to the terminal drop port or the branch drop port.

Hereinafter, embodiments of the similar bolt sorting chute according to the present invention will be described with reference to the drawings.
(Example 1)
As shown in FIGS. 1 to 5, the similar bolt sorting chute 1 of this example slides down a bolt 8 having a disk-shaped head 81, and the bolt 8 is divided into a small head bolt 8 </ b> B and the small head bolt 8 </ b> B. In this case, the head 81 is separated into a large head bolt 8A having a larger axial thickness t. The similar bolt sorting chute 1 has a chute main body portion 2 installed in a state where the bolt 8 is inclined downward with respect to the downhill direction L of the bolt 8.

As shown in FIGS. 3 to 5, the chute main body 2 includes a grooved lane 21 for sliding down the bolt 8, a terminal drop port 23 formed at the downstream end position of the grooved lane 21, and a grooved lane 21. And a branching and dropping port 22 formed at an intermediate position. The groove-like lane 21, the terminal drop port 23, and the branch drop port 22 are formed from the upper surface 201 of the chute body 2.
Further, the groove-like lane 21 includes a slit-like groove portion 211 for allowing the threaded portion 82 of the bolt 8 to pass therethrough and a pair of step-like groove portions that are formed on both sides of the slit-like groove portion 211 to slide down the head 81. 212.

As shown in FIG. 1, a separation plate 3 having an upstream inclined side surface 31 that obliquely crosses the upper surface 201 of the chute main body 2 is arranged on the upper surface 201 of the chute main body 2 on the downstream side of the branch drop port 22. It is set up. The upstream inclined side surface 31 of the sorting plate 3 is located on the downstream side in the vicinity of the branch drop port 22.
As shown in FIGS. 4 and 5, the groove formation depth from the upper surface 201 of the chute body portion 2 to the bottom surfaces of the pair of stepped groove portions 212 in the portion where the separation plate 3 is disposed is the small head bolt 8B. The axial thickness t of the large head bolt 8A is shallower than the axial thickness t of the large head bolt 8A.

As shown in FIGS. 1 and 2, the branch drop port 22 is formed so as to be biased toward the one stepped groove 212 </ b> A via the slit-shaped groove 211, and the upstream inclined side surface 31 is formed as one stepped shape. The upper surface 201 of the chute main body 2 is obliquely crossed in a state where the groove 212A side is located on the downstream side in the downhill direction L of the bolt 8 as compared with the other stepped groove 212B side.
As shown in FIGS. 4 and 5, the groove-like lane 21 is formed so that one step-like groove portion 212 </ b> A side is vertical compared to the other step-like groove portion 212 </ b> B side when the chute body 2 is installed on the mount 11. In a state of being located in the upper direction, the bolt 8 is inclined in the transverse cross-sectional direction W perpendicular to the downhill direction L.

  As shown in FIG. 2 and FIG. 3, according to the above configuration, the similar bolt sorting chute 1 of this example separates the small head bolt 8B when the bolt 8 sliding down the grooved lane 21 is the small head bolt 8B. When the bolt 8 that slides down the groove-like lane 21 is the large head bolt 8A while passing under the plate 3 and dropping to the terminal drop port 23, the head 81 of the large head bolt 8A is attached to the sorting plate 3. The large head bolt 8 </ b> A can be dropped to the branch drop port 22 by being brought into contact with the upstream inclined side surface 31.

Hereinafter, the similar bolt sorting chute 1 of this example will be described in detail with reference to FIGS.
As shown in FIG. 3, the bolts 8 that perform separation in the similar bolt sorting chute 1 of this example are regular bolts 8A that the large head bolts 8A use for manufacturing automobile parts, and the small head bolts 8B are mixed into the regular bolts 8A. The similar bolt 8B. The bolt 8 in this example is a welding bolt 8 used by welding to a workpiece such as an automobile part. The welding bolt 8 includes a head 81 having a disk shape and a screw portion 82 formed in the axial direction from the head 81.

As shown in FIG. 4, the groove-like lane 21 of this example is formed along the longitudinal direction of the chute main body 2 and is formed perpendicularly from the upper surface 201 of the chute main body 2. And the groove-like lane 21 of this example is installed in a state in which the chute main body 2 is inclined with respect to the gantry 11, so that one step-like groove portion 212A side is vertical compared to the other step-like groove portion 212B side. It is inclined in the transverse cross-sectional direction W in a state of being located above the direction.
In addition, the inclination angle θ in the cross-sectional direction W of the groove-like lane 21 can be set to 6 to 8 ° with respect to the vertical direction. In this example, the inclination angle θ is set to 7 ° ± 0.2 °.

  As shown in FIGS. 2 and 3, the branching and dropping port 22 of this example is formed by using the formation location of the slit-like groove 211 and one step-like groove 212 </ b> A. Further, a mortar-shaped tapered surface 231 is formed in the vicinity of the upper opening portion of the terminal dropping port 23 of this example in order to make the small head bolt 8B fall smoothly. In particular, the chute body 2 of this example is subjected to a metal plating process in order to keep the bottom surfaces of the pair of stepped grooves 212 smooth.

Further, as shown in FIGS. 3 and 4, a cover 35 that prevents the bolt 8 that slides down the groove-like lane 21 from bouncing on a portion of the upper surface 201 of the chute main body 2 where the separation plate 3 is not provided. Can be attached.
Further, the groove formation depth from the upper surface 201 of the chute body 2 to the bottom surfaces of the pair of stepped grooves 212 is 0.3 to 1 mm (preferably about 0.5 mm) than the axial thickness t of the small head bolt 8B. Can be formed.

In addition, as shown in FIG. 2, at the bottom of the slit-shaped groove 211, the screw portion 82 of the bolt 8 falling to each of the drop ports 22, 23 is dropped at a position adjacent to the branch drop port 22 and the terminal drop port 23. Relief holes 221 and 231 for smoothing are formed.
In addition, the upstream inclined side surface 31 of the sorting plate 3 is formed to be inclined at about 30 ° with respect to the downhill direction L of the bolt 8 so as to obliquely cross the upper surface 201 of the chute body 2.

  The similar bolt sorting chute 1 of this example is used as a component part of a bolt take-out assisting device that can supply one or a predetermined number of bolts 8 to a worker from among a plurality of bolts 8 to be stored. Further, the bolt take-out assisting device can be used in a welding operation process for welding the welding bolt 8 in the factory.

As shown in FIG. 2, in the bolt take-out assisting device, the chute main body 2 is connected to a storage box 5 that stores a plurality of bolts 8. A plurality of bolts 8 flow down from the storage box 5 to the grooved lane 21 in a line.
Further, as shown in FIGS. 2 and 3, in the chute body portion 2, the downhill that regulates the downhill of the bolt 8 in the grooved lane 21 is located upstream of the formation position of the branch drop port 22 in the downhill direction L. Restricting means 4 is provided. The downhill regulating means 4 is configured to repeatedly perform the downhill blockage of the bolt 8 disposed in the groove-like lane 21 and the release of the downhill blockage, and to slide down only one bolt 8 when the downhill blockage is released. It is.

Then, by making the downhill restricting means 4 in the downhill preventing state, the downhill of the plurality of bolts 8 in the grooved lane 21 is prevented, while in the grooved lane 21 by making the downhill restricting means 4 in the downhill permitted state. Only one of the plurality of bolts 8 can be slid down.
Moreover, although illustration is abbreviate | omitted, a volt | bolt extraction auxiliary | assistance apparatus can be comprised using the air valve etc. which operate the downhill control means 4 in response to the input switch operated by an operator, and this input switch.

  As shown in FIGS. 2 and 3, the downhill restricting means 4 of this example can be configured by using, for example, two air cylinders 41. That is, two air cylinders 41 are arranged in the grooved lane 21 toward the downhill direction L of the bolt 8, and the movable part 411 of each air cylinder 41 protrudes into the grooved lane 21 to slide down the bolt 8. It is possible to move to a blocking position and a return position that retracts from the groove-like lane 21 and permits the bolt 8 to descend. In addition, an interval in which only one bolt 8 can be disposed is formed between the movable portions 411.

  Then, with the movable part 411 of the air cylinder 41A on the upstream side as the protruding position, the downstream side of the plurality of bolts 8 arranged on the upstream side of the groove-like lane 21 with respect to the movable part 411 is prevented in the downstream side. By setting the movable portion 411 of the air cylinder 41B to the return position, the bolt 8 disposed between the movable portions 411 can be slid down to release the downhill prevention. Next, the movable portion 411 of the downstream air cylinder 41B is set to the output position, and the movable portion 411 of the upstream air cylinder 41A is set to the return position so that the next one bolt is interposed between the movable portions 411. 8 and then the movable portion 411 of the upstream side air cylinder 41A can be set to the exit position. By repeating the above operation, the downhill regulating means 4 can slide down the bolts 8 one by one to the downstream side of the grooved lane 21.

The similar bolt sorting chute 1 according to the present example sorts out two types of bolts 8 having different axial thicknesses t of the head 81 without using a special electrical or mechanical mechanism by devising the structure. Is something that can be done.
The similar bolt sorting chute 1 of this example has a very simple configuration using the chute body 2 having the grooved lane 21, the terminal dropping port 23 and the branch dropping port 22, and the sorting plate 3. ing.

More specifically, the groove-like lane 21 includes a slit-like groove portion 211 and a pair of step-like groove portions 212, and the small head bolt 8 </ b> B and the large head bolt 8 </ b> A have screw portions 82 in the slit-like groove portion 211. And the head 81 is placed on the pair of stepped grooves 212, and the grooved lane 21 can be slid down.
In particular, the grooved lane 21 has been devised in the formation state of the upstream inclined side surface 31 in the sorting plate, the formation state of the branch drop port 22, and the inclined state in the cross-sectional direction W of the grooved lane 21. The bolts 8 that fall down can be classified into two types: small head bolts 8B and large head bolts 8A as follows.

In this example, when the bolt 8 that slides down the groove-like lane 21 is the small head bolt 8B, the small head bolt 8B does not contact the upstream inclined side surface 31 of the sorting plate 3, and thus the sorting plate. 3 can be dropped to the terminal drop opening 23.
By the way, if the chute main body 2 is installed on the gantry 11 and the groove-like lane 21 is not inclined in the cross-sectional direction W, or the branch drop port 22 is formed to be biased to the one step-like groove 212A. If not, the small head bolt 8B may fall to the branch drop port 22 without contacting the upstream inclined side surface 31 of the sorting plate 3.

On the other hand, in this example, as shown in FIGS. 4 and 5, in the state where the chute body 2 is installed on the gantry 11, the groove-like lane 21 is the side on which the branching and dropping opening 22 is formed. The stepped groove 212A side is inclined in the transverse cross-sectional direction W with the stepped groove 212A positioned vertically above the other stepped groove 212B. As shown in FIGS. 1 and 2, the branch drop port 22 is formed so as to be biased toward the one stepped groove 212 </ b> A via the slit-shaped groove 211.
With these contrivances, the small head bolt 8B that slides down the groove-like lane 21 slides down with its own weight of the head 81 acting on the other step-like groove portion 212B more than the step-like groove portion 212A. can do. Therefore, it is possible to prevent the small head bolt 8B from being accidentally dropped to the branch drop port 22, and the small head bolt 8B can be stably slid down to the terminal drop port 23.
In this way, the small head bolt 8B as the similar bolt 8B that is not used for component manufacture can be recovered from the terminal drop opening 23 to a recovery box or the like.

On the other hand, in this example, when the bolt 8 that slides down the grooved lane 21 is the large head bolt 8A, the head 81 of the large head bolt 8A abuts against the upstream inclined side surface 31 of the sorting plate 3 and branches. It can fall to the drop port 22.
By the way, if the upstream inclined side surface 31 of the sorting plate 3 is formed so as to cross the upper surface 201 of the chute main body 2 vertically, the large head bolt 8A that slides down the grooved lane 21 is used for sorting. When the plate 3 comes into contact with the upstream inclined side surface 31, the downhill is stopped, and there is a possibility that the plate 3 cannot be dropped to the branch dropping port 22.

On the other hand, in this example, as shown in FIGS. 1 and 2, the upstream inclined side surface 31 of the sorting plate 3 has one stepped groove portion 212A side compared to the other stepped groove portion 212B side. Thus, the upper surface 201 of the chute main body 2 is formed obliquely across the lower surface in the downhill direction L. Thereby, when the head 81 of the large head bolt 8A sliding down the grooved lane 21 comes into contact with the upstream inclined side surface 31, the large head bolt 8A can be stably dropped to the branch dropping port 22.
In this way, the large head bolt 8A as the regular bolt 8A used for component manufacture can be supplied to the operator's palm from the branch drop port 22.

Thus, in this example, even when the similar bolt 8B is mixed in the normal bolt 8A that slides down the grooved lane 21, the similar bolt 8B can be separated and removed from the normal bolt 8A. Thereby, the operator can receive the regular bolt 8 </ b> A used for manufacturing the parts by receiving the bolt 8 falling from the branching and dropping port 22.
Therefore, after receiving the regular bolt 8A, the operator can quickly start work such as welding work using the regular bolt 8A.

Therefore, according to the similar bolt sorting chute 1 of this example, two types of bolts 8 having different axial thicknesses t of the head 81 are separated by an extremely simple configuration, and stable to two types of drop openings 22 and 23. Can be dropped. Moreover, by configuring the bolt take-out assisting device using the similar bolt sorting chute 1, the regular bolts 8A can be stably supplied to the worker one by one.
The small head bolt 8B may be the regular bolt, and the large head bolt 8A may be the similar bolt. Even in this case, the same effect as described above can be obtained.

(Example 2)
The similar bolt sorting chute 10 of this example can sort two bolts 8 simultaneously as shown in FIGS.
As shown in FIGS. 7 and 8, the downhill regulating means 4 of this example is configured to slide down only two bolts 8 when the downhill prevention of the bolts 8 is released. Specifically, an interval for arranging two bolts 8 is formed between the movable part 411 of the upstream side air cylinder 41A and the movable part 411 of the downstream side air cylinder 41B in this example. deep. Then, similarly to the first embodiment, by operating the two air cylinders 41, the two bolts 8 can be slid down simultaneously to the downstream side of the grooved lane 21.

As shown in FIGS. 6 and 7, the branch drop port 22 of this example is formed at the downstream end position of the branch lane 24 formed by branching from the grooved lane 21. The branch lane 24 is formed by branching from the middle of the groove-like lane 21 toward the obliquely downstream side, the branch slit-like groove part 241 continuously formed from the upstream side of the slit-like groove part 211, and one step-like groove part. And a branching step-like groove portion 242 extended from 212A.
The branch lanes 24 are formed along the direction in which the upstream inclined side surface 31 of the sorting plate 3 is formed.

As shown in FIGS. 9 and 10, the groove-like lane 21 of this example is formed in a state of being inclined in the transverse cross-sectional direction W with respect to the chute main body 2. Thereby, the chute | shoot main-body part 2 of this example can be installed in the state parallel to the mount frame 11, and the connection to the said storage box 5 is easy.
Further, the upstream inclined side surface 31 in the sorting plate 3 of this example is formed so as to be inclined with respect to a direction perpendicular to the upper surface 201 of the chute main body 2 so that an angle with the upper surface 201 is opened. . Further, the inclination angle θ of the upstream inclined side surface 31 is substantially the same as the inclination angle θ in the cross-sectional direction W of the grooved lane 21. As a result, the large head bolt 8A that slides down the groove-like lane 21 in an obliquely inclined state causes the head 81 in the obliquely inclined state to abut on the upstream inclined side surface 31 in surface contact with the branched drop port 22. Can fall stably.

In this example, by forming the branch lane 24, the two bolts 8 sliding down the groove-like lane 21 can be separated at the same time.
That is, in the similar bolt sorting chute 1 shown in the first embodiment, when the two bolts 8 are simultaneously slid down, the front bolt 8 is the large head bolt 8A and the rear bolt 8 is the small head bolt 8B. In this case, the rear bolt 8 may also drop to the branch drop port 22 due to the rotational force generated when the front bolt 8 drops to the branch drop port 22. On the other hand, according to the similar bolt sorting chute 10 provided with the branch lane 24 of this example, even when the front bolt 8 is the large head bolt 8A and the rear bolt 8 is the small head bolt 8B, The bolt 8 can be reliably dropped to the branch drop port 22, and the rear bolt 8 can be reliably dropped to the terminal drop port 23.

The reason why the two bolts 8 can be separated at the same time is considered as follows. That is, in the similar bolt sorting chute 10 of this example, immediately after the head 81 of the front large head bolt 8A comes into contact with the upstream inclined side surface 31, the head 81 of the large head bolt 8A is branched at the branch lane 24. It is in a state of being placed on the stepped groove 242. Then, before the large head bolt 8 </ b> A falls to the branch drop port 22, the screw portion 82 of the rear bolt 8 can pass through the position where the branch slit groove 241 is formed. Thereby, even when the large head bolt 8A and the small head bolt 8B slide down the groove-like lane 21 at the same time, it is considered that they can be simultaneously separated and dropped to the respective drop openings 22 and 23.
Also in this example, other configurations are the same as those of the first embodiment, and the same effects as those of the first embodiment can be obtained.

The perspective view which shows the periphery of the downstream front-end | tip part of the similar bolt classification chute in Example 1. FIG. FIG. 3 is a top view illustrating a similar bolt sorting chute according to the first embodiment. It is a figure which shows the similar bolt classification chute in Example 1, and is AA arrow directional cross-sectional explanatory drawing in FIG. It is a figure which shows the similar bolt classification chute in Example 1, and is BB arrow directional cross-sectional explanatory drawing in FIG. It is a figure which shows the similar bolt classification chute in Example 1, and is CC sectional view explanatory drawing in FIG. The perspective view which shows the periphery of the downstream front-end | tip part of the similar bolt classification chute in Example 2. FIG. The upper surface explanatory drawing which shows the similar bolt classification chute in Example 2. FIG. It is a figure which shows the similar bolt classification chute in Example 2, and is CC sectional view explanatory drawing in FIG. It is a figure which shows the similar bolt classification chute in Example 2, and is DD sectional view taken on the line in FIG. FIG. 9 is a diagram illustrating a similar bolt sorting chute according to the second embodiment, and is a cross-sectional explanatory view taken along line EE in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Similar bolt classification chute 2 Chute body part 201 Upper surface 21 Groove lane 211 Slit groove part 212 Step-like groove part 22 Branch drop opening 23 Terminal drop opening 24 Branch lane 3 Sorting plate 31 Upstream inclined side surface 4 Downhill regulation means 5 Storage box 8 bolt 8A large head bolt (regular bolt)
8B Small head bolt (similar bolt)
L Downhill direction W Cross section direction

Claims (7)

A bolt with a disk-shaped head is slid down, and the bolt is a similar bolt sorting chute for separating the bolt into a small head bolt and a large head bolt having a larger axial thickness of the head than the small head bolt. There,
The similar bolt separation chute has a chute body portion installed in a state where it is inclined downward with respect to the bolt down direction,
The chute body portion includes a grooved lane for sliding down the bolt, a terminal drop port formed at a downstream tip position of the grooved lane, and a branching drop port formed in the middle of the grooved lane. The grooved lane, the terminal dropping port, and the branch dropping port are formed from the upper surface of the chute body part,
The groove-like lane includes a slit-like groove portion for allowing the threaded portion of the bolt to pass therethrough, and a pair of step-like groove portions for forming the head portion and sliding down on both sides of the slit-like groove portion,
At the downstream position of the branch drop port on the upper surface of the chute body portion, a sorting plate having an upstream inclined side surface that obliquely crosses the upper surface of the chute body portion is disposed,
The branch drop port is formed so as to be biased toward the one stepped groove portion through the slit groove portion, and the upstream inclined side surface of the one stepped groove portion is downstream in the downhill direction. The upper surface of the chute main body is obliquely crossed in a state located at
The groove-shaped lane is inclined in a cross-sectional direction perpendicular to the downhill direction with the one step-shaped groove portion positioned vertically above in the state where the chute body portion is installed,
The small head bolt that slides down the grooved lane passes below the sorting plate and drops to the terminal drop port, while the large head bolt that slides down the grooved lane separates the head from the sorting lane. A similar bolt sorting chute characterized in that it is brought into contact with the upstream inclined side surface of the working plate and dropped to the branch dropping port.   2. The similar bolt sorting chute according to claim 1, wherein one of the small head bolt and the large head bolt is a regular bolt used for assembly, and the other is a similar bolt mixed in the regular bolt.   3. The similar bolt sorting chute according to claim 1, wherein the grooved lane is formed in a state inclined from the upper surface of the chute main body portion in the cross-sectional direction with respect to the upper surface.   4. The upstream inclined side surface of the sorting plate according to claim 3, wherein the angle between the upstream inclined side surface and the upper surface of the chute main body is perpendicular to the upper surface of the chute body. Similar bolt sorting chute. 5. The chute body according to claim 1, wherein the chute body is connected to a storage box for storing a plurality of bolts, and the bolts flowing down from the storage box are arranged in a row to form the groove-shaped lane. Arranged to slide down sequentially,
In the chute body portion, the downhill regulation that repeatedly performs the downhill blocking of the bolts arranged in the grooved lane and the release of the downhill blocking at a position upstream in the downhill direction from the position where the branch drop opening is formed. A similar bolt sorting chute characterized in that means are arranged. In claim 5, the downhill restricting means is configured to slide down only one bolt when the downhill blocking is canceled.
The similar bolt sorting chute characterized in that the branching and dropping opening is formed by using the formation location of the slit-shaped groove portion and the one step-shaped groove portion. In claim 5, the downhill regulation means is configured to slide down only two bolts when the downhill prevention is canceled.
The branch outlet is formed at the downstream end position of the branch lane formed by branching from the groove lane,
The similar bolt sorting chute characterized in that the branch lane is formed along the forming direction of the upstream inclined side surface in the sorting plate.

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