JPS5974810A - Device for preventing parts from flipping back from stopper in all parts aligning and transporting apparatus - Google Patents

Abstract

PURPOSE:To heighten the efficiency of aligning and transporting parts by providing an aligning and transporting apparatus where a part slid along a chute is stopped by a stopper to be corrected in position with a flip-back preventing device comprising a gate plate, which is disposed upstream of the stopper and is opened only in one direction. CONSTITUTION:A flat part (m) having a notch at one corner there of is supplied from a vibration parts feeder 20 and is aligned in line and fed out to a chute 21, and further sequentially passed through a gate device 22 and a part posture discriminating device 23. A horizontal rotation portion 24 and a vertical rotation portion 26 are controlled according to the posture of the part discriminated by the discrimination device 23, so that the posture of the part is made uniform in a fixed manner. In this case, a flip-back preventing device 60 is disposed adjacent to the horizontal rotation portion 24 on the upstream side thereof. The device 60 includes a gate plate 63 permitting the part (m) to pass in the feed direction, wherein when the part (m) collides with a stopper 38a of the horizontal rotation portion 24 and tends to flip back, the part's flip-back is checked by the gate plate 63.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is provided on a sheet that is connected to the discharge port of a shaking N and J parts feeder in a downwardly inclined manner, and is arranged so that all the conveyed parts on the sheet are aligned in a constant posture and then This invention relates to a device for preventing rebound 9 from a stopper in a complete sorting device for 6 parts to be supplied to a process.

For example, a total part sorting device is developed by the applicant of the present invention in Japanese Patent Publication No. 55
-48527, in which the rotating body and stopper have the configurations shown in FIGS. 1 and 2. That is, in FIGS. 1 and 2, the sheet (1) is obliquely connected to the discharge port of a known vibrating parts feeder (not shown), and the parts m are moved along the sheet transport path (2) by the action of gravity. The rotating body (
5). Although not shown, on the upstream side of the chute of this rotary body (5), there is a gate device for supplying all parts m, and next to this device, a component posture determining device is provided close to the seat (1). After passing through these devices, m is supplied to the transfer path (6) of the rotating body (5). The part orientation determination device determines that this part m is 18 in the transfer plane of the transfer path (6).
0' If it is detected that the orientation is such that the direction should be changed, the stator bar (7) descends and the part m immediately stops before the part m reaches the transfer path (6) of the rotating body (5). After this, the rotating body (5) rotates 180° within the plane of the transfer path (2) of the shoe [1], which is in the same plane as its transfer path (6), and changes the direction of the part m. Then stop. The par (7) is lifted off and this part is released to the downstream side of the IJ.

The stopper (7) is driven by the air cylinder (9) and is fixed in the lot (1υ) of this air cylinder (9).The air cylinder (9) is driven by the air cylinder (9).
1) Fixed type, stopper (7) is this bracket QQ
It is guided in the vertical direction by a guide member (8) attached to. At the lowered position of the stopper (7),
The portion (7a) that comes into contact with the component m is curved concentrically with the circumferential side of the rotating body (5).

Rotating body (5) ij, -t (Rotary actuator in the circular notch (4) formed in IJ!
6), and is fixed to the drive shaft α of this actuator Q2 via a support member.

The rotary actuator @ is driven by compressed air and is fixed to the chute (1) via spacer members (13a) (13b).

Although the God key rotor and the stopper in the conventional parts sorting device are constructed as described above, they have the following drawbacks.

In other words, although FIGS. 1 and 2 show the ideal arrangement of the stopper (7) with respect to the rotating body (5), the stopper (7) is even slightly closer to the seat (IJ) than the position shown in the figure. If part m is located on the downstream side, part m is a stopper (
7) when rotating while abutting against the abutting portion (7a) of the chute (1), the force pulled on the side wall portion (33X3b) of the chute (1) prevents rotation of the rotating body (5). Also, if the υ stopper (7) is located even slightly upstream of the chute (1) than the illustrated position, the abutting part (7a) of the stopper (7) will collide with the rotating body (5) when it rotates. ,・ya is a 9-rotating body (5
) to completely prevent its rotation. When the shape of the part m is complicated, it is particularly easy to get caught on the side wall part (38x3b) of the chute (1).

In order to prevent such pulling as much as possible, as shown in FIG.
The person's mouth part is made slightly wider, but the current situation is that this part has been grouted so that the part m does not actually flow and get caught.

In view of the above-mentioned problems, the present applicant has proposed that the present applicant can easily process and assemble parts to reliably prevent the pulling and sticking of the parts, and the sound of collision between the parts and the rotating body. A patent application filed in 1983 for a stopper as shown in Figs.
It was proposed in issue i54869.

3 and 4 are a partial cross-sectional plan view and a partial cross-sectional side view of the horizontal rotating part in the same device.
This rotating part (24) mainly consists of a horizontal rotating body (31) and a stopper (38a). The horizontal rotary body 0υ is supported by a bearing (39), is fitted into a circular through hole formed in the chute (21+), and is connected to the chute Qυ through a pair of spacer members (33aX33b).
The rotary actuator (3 drive shafts (34) fixed to
A groove (31a) with the same width as 3Q is formed, and this groove (3
The bottom surface of 1a) is on the same level as the transfer path (2) of the sheet circle, and the position of this transfer path (the rotating body Gl is always regulated so that it is aligned and stopped as shown in 3(e)).

The groove (31a) also constitutes a part of the transfer path (3) of the sheet (2υ), but has a length slightly larger than twice the length of the part m, and the groove (31a) has a length slightly larger than the length of the part m. The stopper (38a) is configured to temporarily accommodate 3 m3 of 25 items in relation to the rotary body υ. When the air cylinder is loosely engaged with the air cylinder,
It can be driven in two downward directions. In other words, air cylinder (3
G)'s drive rod 0'7) is the main body C38)
The above-mentioned stopper (38a) is integrally formed as a rond part of this main body.

Although the air cylinder c3G) is not shown, the shoe) (,!
A guide member (41) is fixed to the bracket fixed on the pair of side walls (29a, 29b) of 11, and guides the entire vertical movement of the stopper (3sa).A guide member (41) is also fixed to the same bracket. A urethane rubber pad is attached to the guide member (40) to reduce the impact when the cyst horn body C collides with the guide member (6). It also functions to regulate the descent position.

The present applicant's earlier proposed strut shaft is constructed as described above, and φ is arranged so that the strut < - (38a) is aligned with the rotation center axis of the rotating body 00, so that the When the body (3I) rotates, there is no collision between the rotating body and the stopper, which often occurred with the conventional devices shown in Figures 1 and 2, and assembly is easy, and the opening work is also simple. It became.

However, depending on the price and shape of the parts to be sent,
Depending on the inclination angle of the shunting chute + 2]), the sliding parts may bounce back greatly when they collide with the stopper (38a), and the rotating body (3υ transfer path (31a) upstream 1
It may protrude to 11jl. In such a case, when the rotating body C3υ rotates, the parts will be caught between the side walls (29a, 29b) of the seat (21) and the rotating body C31)! ll interfere with the normal operation of the device. This kind of problem also occurs in the conventional rice casing shown in FIGS. 1 and 2.

The present invention has been made in view of the above-mentioned problems, and is capable of reliably preventing parts from bouncing off the stopper and interfering with the rotation of the rotating body. The entire purpose of the device is to do the same thing. This purpose, according to the present invention, includes a component transfer chute, a component orientation determining device provided in the vicinity of the chute, and a component orientation discriminator that rotates 180 degrees in the same plane as the transfer surface of the chute or in a direction perpendicular to the chute. It consists of a rotating body with a transfer surface that can be moved, a stopper that can reciprocate to temporarily stop a single component supplied on the transfer surface of the rotating body, and the component orientation determining device is capable of changing the direction or reversing the component. When the desired output is generated, the one piece of metal supplied to the transfer surface of the rotary body causes the stopper to assume the forward movement position, temporarily stops, and the rotary body k180'
In a device for conveying all parts, the parts are rotated to change or reverse all directions, and then all the parts are released from the stopper and guided to the downstream side of the chute. proximate the upstream end of the transfer surface;
A gate body is provided whose upper end is rotatably supported, and whose lower end is offset downstream from the center of rotation and abuts against the transfer surface of the sheet, and parts from the upstream side of the sheet are pushed up entirely by the gate body. When the chute enters the transfer surface of the rotary body, collides with the stopper and rebounds, the chute is removed from the transfer surface of the rotor by the gate body, which has already taken the return position where it contacts the sheet transfer surface. A device for preventing rebound from a stopper in a complete sorting device for parts, characterized in that it is completely prevented from protruding onto a transfer surface;
achieved by.

Hereinafter, an explanation will be given of a total part sorting and feeding device according to an embodiment of the present invention with reference to FIGS. 5 to 11.

FIGS. 5 and 6 are schematic partial cross-sectional plan views and partial cross-sectional side views of the all-theta parts conveying device of this embodiment (in order to make the figures easier to understand, each part is not necessarily shown in the actual size ratio. However, in these figures, a spiral track that winds clockwise is formed on the vibrating parts feeder (a), although it is not completely shown, and sheets (21) are placed on the discharge q4 of this track. be connected. Shoe)
(21) is arranged at an angle, and the parts feeder (E)
Part m is supplied to each individual. The part m applied to this embodiment is a flat part having a notch in one corner, and the shoe H is in any of the positions shown in the 8 examples in FIG. 11.
21). In other words, these parts m are supplied in four different orientations, and these parts m are corrected to the orientation shown in row 0 according to the configuration described below, and then processed one by one from the lower end (not shown) of sea-1 (2)). Be supplied with.

Although the sheet (21) is not schematically shown in FIGS. 5 and 6, the gate device (22, component orientation determination device fi & ( 23), a rebound prevention device (60), a horizontal rotation part circle, a first component passage detection device (c), a vertical rotation part, and a second component passage detection device (2). The output signals of the attitude determination device (2), the first and second component passage detection devices (25) (27) are supplied to the microprocessor, and the gate device (2 forces, horizontal rotation part t241 and vertical rotation part +26
1 from the microprocessor.

Gate device (221 is a gate that swings around the axis
Consists of 521 parts, collected with parts m'fc-tanko\,-
The function is to separate the parts and supply them to the downstream side. Part orientation determination device # (c) is light source l! i4), printed circuit board I5!
19, consists of three phototransistors 66) mounted on this substrate 1!551. The sheet (211) directly below the light source 64) has three through holes (57aX57b) (57c) depending on the shape of the part m whose orientation is to be determined.
) are formed, and these through holes (57aX57b) (57
Three phototransistors (4%) are arranged directly below c). Through holes (57a) (57b)
(57c) are arranged so as to have a positional distance of % from each part m as shown in column a of FIG.

Ru. That is, the phototransistor (g) directly under the first through hole (57a) is for so-called synchronization, and when the first through hole (57a) k is shielded by the other through hole (57b) (57C). ) and part m.The part m has four orientations, but the part m in the orientation in column a (hereinafter referred to as part m in aA. Other orientations) The same applies to), the through hole (57
a) When shielding f, other through holes (57b
) (57 is also shielded. In the case of part m of aB, the through hole (, 57a) is shielded. When f is shielded, the other through holes (57b) and (57c) are not shielded. In the case of part m of aC When the through hole (57a) is shielded, one of the through holes (57b) is not shielded, but
The other through hole (57) is shielded.

In the case of part m of aD, when the through hole (57a) and f are shielded, one through hole (57b) is shielded, but the other through hole (57C) is not shielded. The phototransistor (
', +li) are turned on and off, and this on/off signal is supplied to the microprocessor.

The details of the anti-rebound device (60) and the horizontal rotating part are shown in Figures 7 and 8, but the horizontal rotating part 1 (241) is the same as shown in Figures 3 and 4, so
Corresponding parts are given the same reference numerals and their explanations will be omitted.

The rebound device (60) is a horizontal rotating part c! 41 and adjacent to the upstream side of the chute (21).
a) A pair of pillars (61a) (6) erected on (29b)
1b) Consists of a support shaft (61a) and (61b) fixed at both ends, and a gate plate (6) rotatably supported by this support shaft (62).

The upper end (63a) of the gate plate is rotatably supported by the support shaft, and the lower end (63a) is offset downstream from the support shaft and connected to the transfer surface (to) (21). They are in contact as shown in FIG.

The first and second component passage detection devices (25+ (2'?) are the light source 681 en and the printed circuit board 59, respectively) (
60 fixed phototransistor Q)O) (G3
A through hole 034) (6 (g) is formed in the chute 2D directly below the light source 15eQ3υ, and a phototransistor (6f) is formed directly below these through holes (64) (65). (63i are arranged.

Therefore, these through holes (64) (6 (g)
When passes, the phototransistor +60) (63) turns on and off, and this on/off signal is supplied to the microprocessor.

9 and 10 show details of the vertical rotating part (26), this rotating part (261 mainly consists of a rotating body (44) and a stopper (4 marks), and the rotating body (44) is a rotary
The actuator (47J) rotates 180 degrees, and the actuator (40) is reciprocated in a direction perpendicular to the transfer path (7) of the chute (21) by an air cylinder (47).

A guide member (4υ) for reversing parts is fixedly attached to the chute (2υ, and a seat) (2υ) is attached to this guide member (40).
A pair of slit-shaped notches (
41a) (41b) are formed. Rotating body (44J
is slidably disposed in the inner hole of the guide member (41).
v, a slit-shaped groove Ge is formed in the radial direction. This groove (the width of this groove is the transport route of Zoshu N211□□□
The width of the rotating body (goods) is equal to the width of the sheet c! The rotary body is rotated 180° perpendicularly to the transfer path (to) of p, but the rotating body is always rotated so that the transfer path (mome and groove (46) are aligned and stopped as shown in the figure). (44) should not be regulated. In addition, the groove (4G) also constitutes a part of the transfer path C30 of the stopper (211).
49), it is configured to temporarily accommodate m1 parts.

It extends perpendicularly to the transfer path ('30) of the rotating body (published by Shoe) (21), and its boss is fixed to the drive shaft (4 , a bearing fixed to the guide member (41) (which is rotatably supported) and a stopper (4) is rod-shaped, but the drive rod (47) of the air cylinder (47) is rotatably supported. (51), and the guide member (!5Q allows the shoe) (2
I) is carved on the transfer path side and guided in the vertical direction. Note that even if not shown, both side walls (29a) of the shoe (21)
The air cylinder (
47) and the guide member 60) are assumed to be fixed. The forward movement position of the lever 7) (il) and the guide portion 0 is regulated by the contact between the guide portion 7) and the guide portion 0.

Note that the nut (5I) may be attached to the guide member (5(g)) with urethane rubber in the same manner as when it is attached to the horizontal rotating portion (2a) described above to reduce the impact.

A pair of arcuate grooves (44aX44b) are formed in the longitudinal center of the groove (46) of the rotating body (44) in a direction perpendicular to the transfer path q of the chute (21).
A rod-shaped stopper (49) is movably inserted between 44a and 44b.

The apparatus for fully aligning parts according to the embodiment of the present invention is constructed as described above, and the operation of this apparatus will be explained next.

Now, when the part m of aA in FIG. 11 is separated by the gate device (22) and supplied to the component attitude determination device (c),
It is determined that the posture is correct due to this installation gIt (2 moat), and this judgment signal is supplied to the fibroprocessor.
air cylinder (to) (47) and rotating body (31)
144) does not operate, and the stop bar (38a) (49)
remains in the backward movement position (both figures show the forward movement position). Therefore, part m remains as it is \ horizontal rotation part @ and vertical rotation part c! 6) groove (3) which is also a transfer path
1a) (46)t: As is\passing shoe) (supplied from the lower end of 2υ in its desired attitude. In this case, the rebound prevention device 1 (v is the gate plate (63) 'f-8th
The part m is pushed up as shown by the two-dot chain line in the figure, and the part m advances.The first part passage detection device (29) When all the parts pass, a part passage signal is supplied to the microprocessor, which causes the gate i*(2 When the tray is activated, the next part m1 is separated into trays and supplied to the part attitude discriminator fi1 (23. At this time, the part mO) is aB in Fig. 12. , this discrimination signal is supplied to the microprocessor.As a result, the stopper (38a) in the first horizontal rotating section (24) is lowered to the forward movement position as shown in FIGS. 7 and 8. The gate plate of the rebound prevention device is pushed up and the fc'fi15 product is fed into the groove (31a) of the rotating body c31), and as shown in No. 7, it hits the stopper (38a) K@ and tries to rebound. However, the gate plate is already at the return position t' shown by the solid line.
Since it takes e, this prevents the rotating body 01)
It never stands out. The rotating body Oυ is then rotated clockwise in FIG. 7' by 1806 degrees in the plane facing the transfer path to change the direction of the part m.

That is, part m assumes the attitude bB in FIG. 11.

Before this part m is discharged from the horizontal rotating part (241), the stopper (41) in the vertical rotating part 4 moves forward and takes the position *vf- shown in FIGS. 9 and 10. The driving of the rotating body 6υ in (24) and the driving of the stopper (41) in the vertical rotating part are performed after the passing of the previous part is fully detected by the force of the second part passing detection device fiirc!.

When part m of bB is supplied to the vertical rotating part Stopper (38a) of part c2a From the exit of the horizontal rotation part (c) to the vertical rotation part □□□ compared to the distance at i
The distance to the stopper (4) is sufficiently small, and the speed at which part m enters the vertical rotating part (to) is relatively small.
It doesn't stand out from the rest. Next, the rotating body (441 is the shoe) +211 transfer path (1 in the plane perpendicular to the row)
Rotates 80 degrees. As a result, the part m of the table bB is turned upside down and is fed from the lower end of the sheet (21J) in the position cB, that is, the desired position.

Note that when part m of bB passes through the first passage detection i it a, this passage signal causes the gate device (2'IJ
Further, the next part m1 is fully released, and the part attitude determination device (
It supplies two moats. If the attitude of this part m is f a C, this is determined by the device and the horizontal rotating part (2
The No. 4 stopper (38a) rises. Therefore, part m of aC fully pushes up the gate plate (63) of the rebound prevention device (60) and passes through the horizontal rotation part (b).

At this time, the previous component cB has already been discharged from the vertical rotating section (261).Then, the component m of aC supplied to the vertical rotating section c!6 is temporarily stopped by the stopper (49), and then the rotating body ( 44) is turned upside down by 180 degrees, and is ejected from the vertical rotation part (to) in the CC attitude, that is, the desired attitude.

Next, the attitude f of the part m supplied from the gate device (2)
aD, this is determined by the component orientation determination device (c), and the stopper (3) in the horizontal rotation part (2)
8a) is lowered to assume the position shown in FIGS. 7 and 8.

Therefore, part m of aD is pushed up against the anti-rebound device (GOJ gate plate (63)') and then pushed forward to the horizontal rotating part (
In the second position, it is stopped by the stop bar (38a). Next, the rotating body (31) is rotated by 180° in nine directions to take the attitude bD, that is, the desired attitude.

Before the part m of bD is ejected from the horizontal rotation part (24J), the stopper (4) at the vertical rotation part (26I has moved back from the position shown in the figure, so the part m of bD remains as it is.
Vertical rotation part (passes through 2ω, shoe) (lower end force of 2υ)
Supplied from

The embodiment of the present invention performs the above-mentioned functions, but also has the following effects.

That is, according to this embodiment, when the direction of the component m is changed or reversed, the stopper (38a) (4!lf
The rotating body C31) rotates 180' horizontally or vertically with l while in contact with t, but after that, the stopper can be raised without having to raise the stopper each time as in the conventional case.
(38a) (Since the parts can be released from 49, the processing time for the parts is shortened by the time it takes for the stopper to rise. Therefore, the supply efficiency of parts can be improved. Furthermore, the parts are then supplied to the rotating body. If the component orientation discriminator #(c) reads that the component m does not need to be changed direction or reversed, the stopper (38a) (41 rises.Therefore, the next part m passes through the entire rolling body in the same rotation.After the previous part m passes through the second passage detection device (27)'e, the next part passes through the gate device (27). may be separated, and this is determined by a program depending on the distance between each device.

Furthermore, in the horizontal rotation part @ and the vertical rotation part QI19, the rotation axis of the stopper (38a) (the rotating body 01) (44), that is, the rotary actuator (four drive shafts (b)) (43) are arranged in alignment. Since the rotating body C31) n rotation and stopper (3sa) (4
Due to the reciprocating movement of 1, these do not collide, and the stoppers (38a) and (49) are rotated by the rotating bodies (31) and 4.
4), so the stopper (
38a) When the component m changes direction or reverses while contacting the rotating body (41), the rotation is obstructed by the side walls (29a) and (29b) between the transfer path of the sea- -) There is no longer a phenomenon in which the part m gets caught between the parts 21 and 21.

Also, as is clear from the above explanation, the stopper (3
8a) (49) Even if the entire rotating body Gυ (44) is not aligned strictly with the rotational axis, it is sufficient to align it so that it does not interfere with the complete rotation of the rotating body Gυ (44), so assembly is much easier than before. For example, the tip of the stopper (38a) in the horizontal rotating part (24) is connected to the rotating body (3υ groove (31)
Although it is loosely aligned with the hole formed in the central portion of a), it is clear that even if it deviates within the range of this hole, the above-mentioned effect will not be affected.

Gate outfit again! (It is assumed that part m is sufficiently accelerated by gravitational acceleration from 22 to the horizontal rotating part (241) (38a), collides with the stopper (381) and does not bounce back, but due to the rise of the gate plate 6) This prevents it from protruding downstream from the horizontal rotating portion c!41.

Therefore, the phenomenon of parts getting caught due to this protrusion, which has conventionally occurred, is eliminated.

Although the embodiments of the present invention have been described above, the present invention is of course not limited thereto, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiments, a horizontal rotating part and a vertically rotating part were provided, and a rebound prevention device (60) was provided in close proximity to one of the horizontal rotating parts, but in some cases, a bounce prevention device (60) was provided in close proximity to one of the horizontal rotating parts. A lever device may be provided, and depending on the shape of the part to which it is applied, one of the two chambers may be omitted. □ Also, as a gate body, a gate plate (63) is used as in the example.
Instead of being plate-like, it may be wire-like.

Further, although the cross-sectional shape of the stopper is circular, it is not limited to this, and may be rectangular, for example. Furthermore, in the above embodiments, the present invention was applied to the horizontal rotating section having the structure shown in FIGS. 3 and 4, but it can of course also be applied to the horizontal rotating section having the structure shown in FIGS. 1 and 2. be.

As described above, according to the device for preventing rebound from the stopper in the parts conveying device of the present invention, the parts collide with the stopper in the horizontal rotating part or the vertical rotating part at high speed and rebound, causing the parts to rotate Even if it does not protrude from the part, this is prevented.

This eliminates the phenomenon of jamming of otherwise useless parts that previously occurred, and ensures reliable operation of the device69.

[Brief explanation of the drawing]

Fig. 1 is a partial cross-sectional plan view of a horizontal rotating section in a conventional parts sorting device; 4 is a side view of the same partial section, FIG. 5 is a schematic plan view of a complete parts sorting device according to an embodiment of the present invention, FIG. 6 is a side view of the same, and FIG. 7 is a side view of the rebound prevention device and horizontal rotation of the same device. FIG. 8 is a partial cross-sectional side view showing details of the vertical rotating section of the device; FIG. 9 is a partial cross-sectional plan view showing details of the vertical rotating section of the device; FIG. 10 is a partial cross-sectional view of the vertical rotating section. The side view and FIG. 11 are flowcharts showing each attitude of the parts and a full plan view of changes in attitude for explaining the operation of the apparatus. In addition, in the figure (2) +...
- (23)・・・・・・・・・・・・・・・・・・
Part posture determination system practice...
・・Horizontal rotation part (38a) ・・・・・・・・
Stopper -Gυ・・・・・・・・・
......Rotating body (31a)...
・・・Groove 02・・・・・・・・・・・・・・・Lower clearance・
Actuator (60)・・・・・・・・・・・・・・・
...Rebound prevention device (63)...
・・・・・・・・・Gate Board Agent Yasuo Iisaka Figure 1/Figure 2 Figure 10 Figure 21 revised' b

Claims (1)

[Claims] A component transfer sheet, a component attitude determination device provided close to the chute, and a rotating body having a transfer surface that can rotate 180 degrees in the same plane as the transfer surface of the chute or in a direction perpendicular thereto. , consisting of a stone bar capable of reciprocating in order to temporarily stop a single component that has been completely fed onto the transfer surface of the rotary body, and the component orientation determining device generates an output to change the direction or reverse the component. When a part is fed to the transfer surface of the rotating body, the stopper is temporarily stopped by moving the stopper to the forward position, and the rotating body is rotated by 180 degrees to change the direction of the part. After switching or reversing, the parts are released from the stopper and guided to the downstream side of the sea-1. A gate body is provided adjacent thereto, the upper end of which is rotatably supported, the lower end of which is offset downstream from the center of rotation and abuts against the transfer surface of the chute, and parts from the upstream side of the chute are When the gate body fully pushes up and enters the transfer surface of the rotating body, collides with the stopper and rebounds, the gate body, which has already reached the return position where it contacts the transfer surface of the chute, pushes the transfer surface of the rotating body A device for preventing rebound from a stopper in a complete sorting device for parts, characterized in that the device is prevented from protruding from the stopper onto the transfer surface of the chute.