JPH03176202A - Spoke guide device of spoke driving device - Google Patents

Abstract

PURPOSE:To prevent error in supply and transfer by constituting a spoke acceptance groove by a wise groove part for accepting spoke bent head, a narrow groove part of cross section shape which allows vertical bent head to pass on the downstream side, and a shift inclined face between them, and by installing the above spoke acceptance groove in parallel with a chute outlet which supplies spoke S in horizontal conditions. CONSTITUTION:A spoke S is supplied to a groove part 3 horizontally at the predetermined timing by a chute 61. At this time, posture of the bent head H of the spoke S is unstable. On the other hand, width of a first groove section 3a in the groove part 3 is in a size which allows accomodation of a spoke irrespective of the posture of its bent head H. Consequently, the spoke S is accepted in the groove part 3 irrespective of its posture. When it moves along the groove 3, the head H having irregular posture is regulated in vertical direction at an inclined face 3b, and transferred to a third groove part 3c. Since the groove part 3c allows passage of only spokes in vertical posture, they are supplied with correct posture at all times. Thus, it is possible to prevent error in transfer and supply.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Application and Summary of the Invention The present invention relates to a spoke guide device used in a device for inserting spokes into spoke holes of a hub, and particularly relates to a spoke guide device in a spoke punching device. This is to ensure that the head of the spoke, which has been supplied lying on its side, is placed in an upright position when the spoke is rotated eight times in the axial direction of the spoke.

[Prior Art and Problems] Among devices for inserting spokes into the flange of a hub, a device in which each spoke is inserted by supporting the hub so that its shaft is in a horizontal position is disclosed in the published patent publication; 58-50
This is proposed in the No. 0944 publication.

This model has the advantage of allowing spokes to be inserted into both collars at the same time compared to previous weight-based models. In this horizontal support type spoke insertion device, as shown in FIG.
) are arranged on both sides of the hub (1).
It is inserted into the spoke hole (H) (12) formed in the flange (10a) (fob) of the hub (1) from the side thereof. In order to enable insertion of the spokes (5) from the side, the insertion direction is specially set as shown in the figure, and each of the ejecting devices is positioned in relation to the corresponding spoke hole. The spokes (5) are automatically inserted into the spoke holes of the hub by repeating the "positioning hole punching operation".

This spoke ejecting device (2) is proposed in the published patent publication No. 58-500991, and in this device, as shown in Fig. 11, a nozzle (N) and a holder (C) are connected. The holder (C) is provided with a groove (3) that opens upward, and this groove (3) is provided with a propelling means for pushing out the spoke (5) toward the distal end. 3) is equipped on the base (B) so that it can move forward and backward.

In this conventional device, the spokes (5) received in the holder (C) are moved along the groove (3)-#44 from the base end to the tip nozzle (N ), and at this time, the groove (3) is maintained in a state where it has moved forward by a part of the stroke relative to the base (B), and the groove is moved toward The spokes inside (3) (5
) will be automatically inserted into the spoke holes.

Therefore, the spoke holes and the punching device (2) are set in a positioning state and placed in a predetermined relationship, and the holder (C
) Each time a spoke (5) is received, the one-marking motion is repeated, and a spoke (5) is inserted into each spoke hole in the collar separately and automatically.

However, in this conventional device, the punching device (2)
It is easy to make a firing error when launching the spoke from the base.

This is because a feeding error occurs when the spokes are fed one by one from the spoke supplying device to the groove (3), and furthermore, the head of the spoke (5) received in the groove (3) at the time of this feeding. This is because the parts may become inverted. In other words, with this conventional device, unless the head is immersed into the groove (3) while the head is accurately erected and the entire spoke (5) is maintained in a horizontal position,
This is because the spokes (5) are not accommodated in the groove (3) in an appropriate posture.

In order to eliminate such inconvenience,
A part of the spoke guide device disclosed in Publication No. 4 is attached to the groove part (
3) may also be adopted. In other words, the cam surface of the attitude control mechanism of the device is disposed in the groove (3). In a device using a groove with this configuration, even if the head of the spoke is inserted into the groove in a sideways state, the head stands upright while the spoke (5) is moved in the axial direction, so the groove (3) There is more room in the immersed posture, making it less likely that a supply error will occur. However, in the case of this improvement, the spokes (5) move in a direction perpendicular to the axis while passing through the attitude control cam part of the groove part (3). There is a risk that the ball may escape from the groove (3) when the ball is punched out in the axial direction. This risk becomes particularly significant when the ejection speed is increased.

The present invention has been made in view of this point, and includes receiving the r spoke (5) in the groove (3) and pushing out the spoke (5) in the axial direction along the groove (3) by a propulsion device. In the "spoke ejecting device",
The object is to prevent mistakes in the supply of spokes (5) to grooves (3) and also to prevent mistakes in the transfer of a spoke guide device by a propulsion device.

[Technical Means] The technical means of the present invention taken to solve the above problem is to provide a chute (which supplies the r spokes (5) in a horizontal state).
below and parallel to the outlet of the groove (3).
), and the groove (3) is connected to the chute (61).
), and a second groove (3a) that accommodates the bent head 01) of the spoke (5) when inserted from ), and a second groove (3a) that is located downstream in the feeding direction of the spoke (5). 3
b) and a third structural part (3c) located at the downstream end, and has a cross-sectional shape that allows the bent head (H) of the spoke (5) to just pass through the third groove part (3c) in an upright posture. year,
The second groove part (3b) is made into an inclined surface (32) or an inclined curved surface whose both side walls change from upward to sideways toward the downstream side, and whose upstream end coincides with the bottom of the groove part, and the first groove part (3a) is a flat part continuous to the upstream edge of the inclined surface (32) or the inclined curved surface, and the groove width is set to a width that allows the bent head (H) to be accommodated in an inclined posture; The width centers of the three grooves are made to coincide with the locus of movement of the spokes (5).

[Effect] The above technical means of the present invention operates as follows.

Spoke (5) at the specified timing from the chute (61)
) is supplied to the groove (3), the spoke (5) is recessed into the groove (3) in a horizontal state. At this time, the posture of the bent head (H) is not determined, but since the input direction at the time of inputting coincides with the axis of the groove (3), and the width of the first groove (3a) is different from that of the input direction. Since it is set to be larger than that of the groove part of the spoke (2) and about twice as large as the bent head part ()l), the entire spoke (5) is reliably placed in the groove part (3) regardless of the posture of the head of the spoke (5). Containment is imminent.

When the spoke (5) is received in the groove (3), the propulsion device is driven to transport it downstream, but the bent head (
) 1) is not in an upright state, the bent head (1-1) is connected to the second groove part (3b) that smoothly continues from the flat part of the -t14th part (3a) in this feeding path. Slope (
32) or the posture is controlled by the inclined curved surface to a posture that matches the cross section of the third groove portion (3c), that is, an upright posture. During this posture control, the posture changes in such a manner that the bent head rotates around the shaft of the spoke (5), so the locus of movement of the shaft of the spoke (5) is maintained in a straight line and moves up and down. It never changes.

[Effects] Since the present invention has the above configuration, it has the following unique effects.

The spoke (5) is thrown in from the chute (61) regardless of the posture of the bent head ()I) of the spoke (5)
The spoke (5) will be inserted into the structure (3) without fail.
can prevent supply errors.

When the spoke (5) is transferred within the groove (3), the locus of movement of the shaft is maintained in a straight line and does not change upward or downward, so the spoke (5) accommodated in the groove (3)
Transfer errors can be prevented.

[Example] Examples of the present invention will be described below with reference to FIGS. 1 to 9.

In this embodiment as well, the hub (1)
corresponds to a spoke hole (H) formed in the brim portion of the collar and into which the spoke (5) is inserted from the outside, and a spoke hole (12) into which the spoke (5) is inserted from the inside of the brim portion. Each firing position (2) is arranged on the outside of the hub (1).

That is, as shown in FIG. 8, the spoke hole (H) of the flange (10a) of the hub (1) supported in a horizontal position has the first striking device (2a) installed on the left side of the hub (1). The spoke (5) is pushed into the spoke hole (12) by the second punching device (2b) installed on the right side of the hub (1).
) the spokes (5) are inserted. The spokes (5) are inserted into the spoke holes (H) of the other brim (10b) by the third punching device fit (2c) installed on the right side of the hub (1), and the spokes (5) are inserted into the spoke holes (12). Make sure that the input directions do not intersect with each other, and also make sure that the spokes (5)
The attitude ζ~ of the punching device is set so that the insertion locus and its extension line do not contact the opposite flange.

As a result, the collar (10a) is supported and fixed in a horizontal position.
) (10b) spoke hole (+1) (12),
The spokes (5) can be individually inserted into each 'spoke hole in a state that suits them.

In addition, when inserting the spoke using the above-mentioned punching device:
Inserting spokes from each punching device! It is necessary to match h, g, and with the punch hole (H) (12), and in this embodiment, a driving roller that is frictionally transmitted to the collar is rotated by a stepping motor (SM), and is installed in the collar. When the spoke hole is aligned with the spoke hole, the position detection device (
The output signal from the stepping motor (40) causes the stepping motor (
SM) is stopped, and the position detection device (40
) is retracted from the detection position to the retracted position using an air cylinder (4).

Next, each punching device has a structure as shown in FIGS. 1 to 9, and a holder (C) having a groove (3) is fixed to the frame of this punching device, and )
A connecting cylinder part (G) in which a nozzle (N) is fitted on the outside so that the nozzle (N) can move forward and backward is connected to the tip of the holder. An air cylinder (38) is interposed.

The holder (C) has a groove (3) that opens upward, and is disposed below the chute (61) of the spoke supply device (6) to the punching device, and is configured to have a groove (3) that opens upward. portion coincides with the downstream end of this chute (61), and the length of this open portion is longer than the length of the spoke (5).

In this embodiment, the propulsion device is a pneumatic type, and in order to increase the efficiency of pumping the spokes by air pressure,
The groove (3) of this holder (C) has a cover plate (
30), and this cover plate (30) is configured to move back and forth between a closed position where the open portion is closed and a retracted position where it is retracted to the side thereof.

The chute (61) has spokes (5) along the inclined surface.
is dropped by its own weight, and the width of the slope is set slightly smaller than the length of the spokes (5).
The spokes (5) fall on the upper surface of the chute (61) with their axes substantially horizontal, with their bent heads (H) protruding from the edge of the inclined surface. In addition, Shoe) - (
61), there is a guide plate (
62), the spokes (5
) is reliably guided into the groove (3). Here, the groove (3) includes a first groove (3a) that accommodates the bent head (I) of the spoke (5) when it is thrown in from the chute (61), and a first groove (3a) that accommodates the bent head (I) of the spoke (5) on its downstream side (the spoke (5)). 5), and a third groove (3c) located at the downstream end.
As shown in Fig. 5, the bent head (1 (
) has a cross-sectional shape that allows it to pass through in an upright position. In other words, its height is greater than the height of the bent head (H), and its groove width is slightly greater than the wire diameter of the spokes (5).

As shown in FIG. 4, this upstream second groove portion (3b) has upwardly inclined surfaces (32) on both sides, and the upstream edge of this inclined surface (32) is approximately horizontal. At the downstream end, there is an upright side wall. In other words, this slope (32)
is twisted smoothly from a horizontal plane to an upright plane. The upstream edge of the inclined surface (32) and the bottom of the groove (3) in this section are on the same line, and a first groove (3a) is formed on the upstream side thereof as shown in the figure. This first groove part (3a)
The width of the bending head (H) is set to be larger than twice the length of the bent head (H), and the outer appearance is a substantially rectangular recess. The bottom of this first groove (3a) is the downstream end (3b at the second groove)
It has a sloped bottom (33) that smoothly descends from the side edge (side end) toward the upstream end and slopes smoothly from one side edge to the other side edge. And this sloping bottom (3
A discharge port (31) for pressurized air is opened in the upright wall (wall surface perpendicular to line IlII) at the end of 3). This outlet (31)
A pressure air circuit from an air pressure source is connected to the air pressure source, and an electromagnetically controlled on-off valve (V) is inserted into this circuit.

The discharge of pressurized air from the discharge port (31) is controlled by this on-off valve.

The upper surface of the holder (C) on which the groove portion (3) of the above structure is formed is configured as a --shaped plane, and the cover plate (30) and this upper surface portion slide on this upper surface to facilitate the transfer of the spokes (5). They run in a direction perpendicular to the path.

This cover plate (30) is a rectangular plate-shaped body, and is reciprocated by a pair of air cylinders (34). Note that the air cylinders (34) (34) function as the lid plate driving means described above.

A connecting cylinder part (G) is connected to the distal end side of the holder (C) having the groove part (3) having the above structure, and this connecting cylinder part CG) has a passage hole ( 34) and has a round shaft. The base end portion of the nozzle (N) is slidably fitted onto the connecting cylinder portion (G). A passage hole (35) similar to the connecting cylinder part (G) is formed on the distal end side of the fitting part in the nozzle (N),
As shown in FIG. 2, the entrance portion (36) of the passage hole (35) has a side wall portion and a bottom portion that are inclined surfaces that smoothly expand toward the upstream side. And, on the tip side of the nozzle (N), the upper part of the passage hole (35) is cut out and opened, and the base end of this opening part is an inclined surface facing upward toward the upstream side, A closing plate (37) which is always biased to a closed state is provided on this inclined surface, and the lower half of the passage hole (35) opens from the lower end of this closing plate (37).

The nozzle (N) configured as described above is connected to the output shaft of an air cylinder (38) attached to the holder (C), and the nozzle (N) advances or retreats according to the output of the air cylinder (38). After the spoke insertion is completed, when one hub is set, it is maintained in the advanced position by a predetermined operation, and is returned to the initial position after the spoke insertion is completed.

In this embodiment, each of the air cylinders and the discharge port (3
The on-off valve (V) inserted into the pneumatic circuit to 1) is controlled by a control means (5), and a microcomputer is used as the control means (5).

In order to enable control by this microcomputer, sensors are installed in required parts, and the output signals from this are manually transmitted to the microcomputer.
Each air cylinder performs an operation in which its output shaft advances or retreats by a partial stroke in response to an output signal from the microcomputer.

The microcomputer continuously performs the following operations.

First, prior to execution of this program, the air cylinder (38) is driven forward to advance the nozzle (N) by a certain stroke, and the positioning operation of the hub (1) proceeds. At this time, since the spoke (5) is not received in the groove (3), the cover plate (30) is in an open state. Thereafter, one spoke (5) is fed from the chute (61) into the groove (3) by the spoke feeder (6).
When the spoke detection sensor (S2) detects this, the air cylinder (34) is driven forward by the output at this time, and the lid is closed to the position where the open part of the groove (3) is completely closed. The plate (30) is moved. When moved to the fully open position, the cover plate occlusion detection sensor (
The forward drive of the air cylinder (34) is stopped by the output signal of S3). Thereafter, the on-off valve (v) is opened and pressurized air is discharged from the discharge port (31), and this discharge pressure transfers the spoke (5) to the tip side of the nozzle (N). The spokes (5) are ejected from the hub (1) and pushed into the spoke holes in the flange of the hub (1).

At this time, when the spoke (5) passes through the passage detection sensor (Sl), the groove (3) is returned to the initial position by the reverse drive of the air cylinder (34) by the output signal from now on. At the same time, the on-off valve (v) is closed.

When the above series of operations is completed, one spoke (5)
is inserted into a predetermined spoke hole, and after this process is completed, the cover plate (30) is returned to the open state and the air cylinder (30) is opened by the output of the open detection sensor (S4).
4) is stopped and the next spoke insertion process begins.

Note that since a hub positioning device is usually added, this positioning device operates after the spoke is inserted, and when the nozzle (N) of the punching device and the uninserted spoke hole are accurately aligned, The above series of operations is repeated. That is, during the positioning operation, the spoke insertion operation is repeated in this order, and the spoke (5) is inserted into each spoke hole.

In particular, in this embodiment, the inclined bottom (
33) is a plane that slopes from one side edge to the other side edge, the bent head (H) of the spoke (5) supplied from the chute (61) has an extreme posture, that is, Even if the bent head is inserted into the groove (3) in an inverted state, it will eventually be accommodated in a sideways open state due to the action of the inclined plane. This is because the bent head (H) may skid after the official. Therefore, when the propulsion device starts transferring the spokes (5), the bent head (H) is moved to the second groove (3b).
) to the third groove 4'' portion (3c), the posture is smoothly controlled.

Further, there is no inconvenience that the bent head (H) is maintained in an inverted state.

Note that this means that the bottom of this first groove (3a)
As shown in the figure, the same effect can be obtained by using a configuration in which the center is the top and the slope or curved surface descends toward both sides of the top. In this case, the height of the center top is made to match the bottom of the other grooves.

Further, in this embodiment, a pneumatic propulsion device is used as the propulsion device, but it may be replaced by a method of mechanically driving the moving body that makes eight reciprocations as in the conventional example described above. There is no change in the effectiveness of the invention.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is a nozzle (N
), Figure 3 shows the groove (3) and shoe) - (
61), Fig. 4 is an explanatory diagram explaining the relationship with groove part (3).
5 is a sectional view taken along the line X-X, and FIG.
7 is a 2-2 sectional view, FIG. 8 is a schematic explanatory view of the entire spoke insertion device, FIG. 9 is an explanatory view of another example of the first groove portion (3a), and FIGS. FIG. 11 is an explanatory diagram of a conventional example. ...Hub...Spoke...Groove section...First groove section...Second groove section...Third groove section...Chute...Slanted surface

Claims (1)

[Claims] In a spoke punching device that receives a spoke (S) in a groove (3) and pushes out the spoke (S) in the axial direction along the groove (3) by a propulsion device, the spoke (5) is held in a horizontal state. The groove portion (3) is disposed below and parallel to the outlet of the chute (61) that is supplied with the feed, and the groove portion (3) is connected to the groove portion (3) at the time when the spoke (S) is fed from the chute (61). and a first groove part (3a) that accommodates the bent head part (H), and a spoke (S
), and a third groove (3c) located at the downstream end of the second groove (3b), which is located on the downstream side in the transfer direction, and the third groove (3c) (H)
The second groove part (3b) has an inclined surface (32) or an inclined curved surface whose both side walls change from upward to sideways toward the downstream side, and the upstream end thereof has a cross-sectional shape that allows the The first groove part (3a) is made to be a flat part continuous to the upstream edge of the inclined surface (32) or the inclined curved surface, and the groove width is adjusted so that the bent head (H) is inclined. A spoke guide device of a spoke driving device, which is set to a width that can be accommodated in a posture, and the center of the width of the three groove portions is aligned with the locus of movement of the spoke (S).