JPH07315562A - Branch device for conveyor - Google Patents

Abstract

(57) [Summary] [Purpose] The conveyor branching device is operated by one power source (motor). [Structure] A frame 4 is provided on a base 8 via a guide 45 and a guide pin 85 so as to be capable of sliding movement in the vertical direction. A forward / reverse rotation motor 1, a gear box 2, and a rotating shaft 3 are attached to the frame 4. The rotary shaft 3 is provided with one-way clutches 51 and 61 that operate in mutually opposite directions. The cam 5 is provided via a one-way clutch 51 that operates in the forward direction. Drive sprockets 6 and 6'are provided via a one-way clutch 61 that operates in the reverse direction. A chain 7, 7'is provided which is driven by the drive sprocket 6, 6 '. [Effect] The cam 5 is activated by the forward rotation of the motor 1,
The lift-up operation of this branching device is performed. Motor 1
By the reverse movement of the drive sprocket 6, 6'and the chain 7 are operated, a branch operation is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branching device for a conveyor, and more particularly to moving the branching device itself in the vertical direction and operating the branching device for the conveyor by one power source. The present invention relates to a conveyor branching device.

[0002]

2. Description of the Related Art A conventional conveyor device, for example, in the case of a roller conveyor as shown in FIG. 5, is provided with a branching device 10 in a part of a main line 50 and a sub line 90 from this part. It is something like this. In this case, the product (work) or the like flowing on the main line 50 as shown by the arrow is detected by the sensor 80, and the conveyor branching device 10 is operated based on the signal detected by the sensor 80. It is one that has become. Specifically, the sensor 80
The power cylinder (not shown) or the like for lifting up the conveyor branching device 10 is operated based on the signal of, and at the same time, a separately provided motor (not shown)
The sprocket 110 is driven to rotate, and the chain 120 driven by the sprocket 110 is actuated to move the work or the like conveyed on the conveyor branching device 10 to the sub line 90. It is to branch to the top.

[0003]

By the way, the above-mentioned conventional one is provided with a power cylinder device for lift-up as a power unit for operating the branching device 10 for the conveyor, and further, the chain 120 and the like. The motor and the like for driving the motor are separately provided. Therefore, since there are two power sources, there is a problem in that the entire apparatus becomes large and the weight (mass) must be heavy. In order to solve such a problem, it is an object (problem) of the present invention to provide a small-sized conveyor branching device in which one power source is integrated and the whole is compactly integrated. .

[0004]

In order to solve the above problems, the present invention takes the following measures. That is, with respect to the conveyor branching device for branching the product (work) or the like conveyed on the main line of the conveyor to the sub-line side, a motor capable of normal rotation and reverse rotation, and a rotating shaft driven to rotate by the motor. A cam attached to the rotary shaft via a one-way clutch, and the rotary shaft via another one-way clutch operating in a rotation direction relatively opposite to the one-way clutch provided on the cam. It has a sprocket, a gear, or a pulley attached to, and a chain or a belt driven by the sprocket, the gear, the pulley, or the like. Further, in addition to the above configuration, a frame for supporting the motor, the rotating shaft, the cam, the sprocket, the gear, or the pulley, the chain or the belt driven by the sprocket or the pulley, or the like is provided, and the guide is provided on the frame. On the other hand, a supporting member is provided on the base so as to be capable of relative movement in the vertical direction with respect to the guide, whereby the frame is provided on the base in accordance with the operation of the cam. The configuration is such that it can be moved in the vertical direction along the support member.

[0005]

By adopting the above construction, the following effects are exhibited in the present invention. That is, as shown in FIG. 4, for example, when a product (work) or the like is conveyed on the conveyor 9, the sensor 91 operates. Based on the signal from the sensor 91, the motor 1 operates (normal rotation),
The rotating shaft 3 is rotated (normally rotated). By the way, in this case,
As shown in FIG. 2, since the cam 5 is attached to the rotary shaft 3 via the one-way clutch 51 that operates only in the forward rotation direction (the direction shown by the arrow), the cam 5 operates. By the operation of the cam 5, the frame 4 to which the cam 5 is attached is moved upward to some extent.

By the upward movement of the frame 4,
Similarly, the stopper 4 attached to the frame 4
1 projects onto the upper surface of the conveyor 9, as shown in FIG.
By the upward protrusion of the stopper 41, the product (workpiece) or the like is retained on the branching device. Following this, when the cam 5 further rotates, the frame 4 is lifted up (lifted up) to the maximum stroke position. That is, the transport surface 71 of the chain 7 attached to the frame 4 is sufficiently lifted up as shown in FIG. As a result, the product (workpiece) or the like that has reached the branching device is lifted up above the position of the transport roller 92 forming the conveyor 9 and separated from the transport roller 92.

In such a state, next, the motor 1 is rotated in the reverse direction. Along with the reverse rotation of the motor 1, the rotary shaft 3 also rotates reversely. By the way, due to the action of the one-way clutch 51, the cam 5 does not operate due to this reverse movement, but it is formed so as to operate in a direction relatively opposite to the one-way clutch 51 provided on the cam 5. The sprocket 6 attached to the rotary shaft 3 operates via the other one-way clutch 61. That is, with the reverse movement of the rotary shaft 3, the sprockets 6 and 6'rotate in the reverse direction. This sprocket 6, 6 '
The rotational movement of moves the chain 7 connected to the sprockets 6 and 6'in the direction of the arrow as shown in FIG. With the operation of this chain 7,
The product (work) or the like mounted on the transport surface 71 of the chain 7 is transferred as shown by the arrow B in FIG.
That is, it is branched from the conveyor line of the conveyor 9.

After the product (work) has been branched in this way, the motor 1 is again rotated in the forward direction. In this case, the drive of the sprocket 6 and the drive of the chain 7 are stopped, but instead of this, the cam 5 is rotationally driven. Then, the rotational movement (operation) of the cam 5 returns the cam 5 to the initial state (position). Further, the frame 4 to which the cam 5 and the rotary shaft 3 are attached is also returned to the original state (position). That is, frame 4
The branching device starting with is returned to its original lower position (state). Therefore, the transport surface 7 of the chain 7
The position 1 is installed below the position of the conveyor roller 92 of the conveyor 9, and the product (work) or the like can be moved on the conveyor roller 92. This completes a series of branching operations.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the configuration of the present embodiment includes a motor 1 capable of normal rotation and reverse rotation, a gear box 2 that converts the rotational movement direction of the motor 1 by 90 °, and increases the transmission torque. A rotary shaft 3 to which the rotary motion of the motor 1 is transmitted via the gear box 2,
The cam 5 mounted on the rotary shaft 3 via a one-way clutch 51, and the one-way clutch 61 provided on the cam 5 that rotates in a direction opposite to the one-way clutch 51. The sprocket 6 attached to the shaft 3 and the sprocket 6
And a chain 7 which is engaged with and is driven by the sprocket 6.

The motor 1, the gear box 2, the rotating shaft 3, the cam 5, the sprocket 6 and the like having the above structure are mounted on the frame 4. Further, a guide 45 is provided on the frame 4, and the guide 45 slides in a vertical direction relative to a support member (guide pin) 85 provided on the base 8. It is constructed so that it can be moved. Also,
The base 8 to which the guide pin 85 is attached is shown in FIG.
As shown in FIG. 5, the conveyor frame 99 of the conveyor 9 can be attached by using bolts and nuts. Further, as shown in FIGS. 1 and 2, a roller 81 is provided on the base 8 via a bracket 88 or the like, and the cam 5 is installed on the roller 81. It is a thing. Therefore, from these facts, the frame 4, to which the motor 1, the rotary shaft 3, the cam 5 and the like are attached, moves vertically with respect to the base 8 via the guide 45 and the guide pin 85. It is configured so that it is attached as much as possible.

In such a basic structure, the motor 1 is composed of an electric motor or the like capable of forward and reverse rotations, and a sensor 91 provided on the side surface of the conveyor 9 or the like.
The control such as forward / reverse rotation is performed based on the signal from (see FIG. 4). In addition, the gear box 2 that converts the direction of the rotational movement output from the motor 1 by 90 ° and increases the rotational torque from the motor 1 is composed of a hypoid gear, a bevel gear device, or the like. is there. Regarding the gear box 2 and the motor 1, it is also possible to adopt a commercially available geared motor in which these are integrated.

Next, a rotating shaft 3 is connected to a part of gears or the like forming the gear box 2, and the rotating force from the motor 1 is transmitted to the rotating shaft 3. Has become. Both ends of the rotary shaft 3 are supported by the frame 4 as shown in FIGS. 1 and 3. Further, as shown in FIGS. 2 and 3, the cam 5 and the sprockets 6 and 6 ′ are attached to the rotary shaft 3 via one-way clutches 51 and 61. Then, these cams 5 and sprockets 6, 6 '
The one-way clutches 51 and 61 attached to the are of existing roller type or sprag type. In addition, these one-way clutches 51, 61
Is the one attached to the cam 5 side (51) and the one attached to the sprocket 6, 6'side (61),
The operating rotation directions are opposite to each other. Therefore, in the present embodiment, the cam 5 is operated (driven) only when the motor 1 and the rotary shaft 3 rotate in the forward direction, and at the same time,
Only when the motor 1 and the rotary shaft 3 rotate in the reverse direction, the sprockets 6 and 6'are operated (driven).

In such a structure, the cam 5 is
As shown in FIG. 2, it is composed of an eccentric cam or the like, and the one-way clutch 51 is provided at the center of rotation, and the portion of the cam surface formed at the lower portion is on the base 8. A roller 81 attached to the bracket via a bracket 88 is in contact with the roller. Therefore, with the operation of the cam 5, an interaction is formed between the roller 81 to be the follower, whereby the central portion of the cam 5, that is, the portion of the rotary shaft 3 is moved to the above-mentioned position. The base 8 is lifted up (lifted up). It should be noted that the cam surface of the cam 5 is provided for actuating the stopper 41 in FIG. 4 at an intermediate portion until reaching the maximum stroke position.
Intermediate lift-up position is set.

Next, in the vicinity of both ends of the rotary shaft 3, as shown in FIG. 3, a one-way clutch 51 for the cam 5 is provided.
Drive sprockets (drive sprockets) 6 and 6 ′ are provided via another one-way clutch 61 formed so as to operate in a direction relatively opposite to.
As shown in FIGS. 1 to 3, idler sprockets 65, 65 ', which are rotatably attached to the frame 4, are provided above the drive sprockets 6, 6'.
66, 66 'are provided. The drive sprockets 6 and 6'and the idler sprocket 65,
The chains 7, 7'are attached to 65 ', 66, 66'. In these configurations, the sprocket may be composed of a pulley or a gear instead of this. However, if a pulley is used instead of the sprocket, a belt will be used instead of the chain, and if a gear is used, a toothed belt (cogged belt) will be used. Will be done.

The motor 1, the gear box 2, the rotary shaft 3, and the sprockets 65, 65 ', 66, 6 having the above-mentioned configurations.
6'and the like are attached (mounted) to the frame 4 having a rectangular shape. As shown in FIGS. 1 and 2, the frame 4 has a guide 45 provided in a part thereof. Further, a guide pin 85 is attached to the guide 45, and the guide pin 85 is attached to the base 8. Therefore,
The frame 4 is operated via the guide 45 and the guide pin 85 in accordance with the operation of the cam 5, so that the frame 4 can move in the vertical direction relative to the base 8. There is something. On the other hand, as shown in FIG. 4, the base 8 is configured to be attached to the conveyor frame 99 of the conveyor 9 via bolts and nuts, so that the frame 4 is finally The conveyor 9 can be moved vertically.

The operation mode and the like of this embodiment having these configurations will be described. By the way, the basic operation mode of this embodiment is the same as that described in the section of the above operation. Therefore, the cam 5 operates in accordance with the forward rotation of the motor 1, which causes the frame 4 to rise upward, and as a result, the transport surface 71 of the chain or belt.
However, it will protrude above the surface of the conveyor roller 92 of the conveyor 9. Then, in such a state, when the motor 1 is rotated in the reverse direction, the chain 7 or the belt is driven accordingly, so that the product mounted on the transport surface 71 of the chain 7 or the belt ( The work) and the like are sent in the lateral direction (the direction of arrow B in FIG. 4). That is, the series of operations results in branching of products (work).

[0017]

According to the present invention, a conveyor branching device for branching a product (work) or the like conveyed on a main line of a conveyor to a sub-line side is provided with a motor capable of normal rotation and reverse rotation, and the motor. And a cam attached to the rotary shaft via a one-way clutch, and operates in a rotation direction relatively opposite to the one-way clutch provided on the cam. Through a one-way clutch, the sprocket, the gear, or the pulley attached to the rotary shaft, and the chain or belt driven by the sprocket, the gear, or the pulley, and the motor, the rotary A frame that supports shafts, cams, sprockets, pulleys, etc. is provided. With the operation, since the frame was decided to adopt a structure formed by a can be moved vertically relative to the base, by forward rotation of the motor, this branch device is lifted up,
Further, in such a state, by rotating the motor in the reverse direction, the chain or the like is driven, whereby the product (work) or the like can be branched. That is, with one power source (motor),
The lift-up operation and the branch operation of the branching device can be performed, and the structure of the entire branching device can be simplified. Also, along with this,
The entire device has been downsized, and it has become possible to save space and reduce weight (mass). Furthermore, it has become possible to reduce the manufacturing cost.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of the present invention.

FIG. 2 is a cross-sectional view showing the overall structure of the present invention.

FIG. 3 is a vertical sectional view showing the overall configuration of the present invention.

FIG. 4 is a perspective view showing an operating state of the present invention.

FIG. 5 is a perspective view showing an overall configuration of a conventional example.

[Explanation of symbols]

 1 Motor 2 Gear Box 3 Rotating Shaft 4 Frame 41 Stopper 45 Guide 5 Cam 51 One Way Clutch 6 Sprocket (Drive Sprocket) 6'Sprocket (Drive Sprocket) 61 One Way Clutch 65 Sprocket (Idler Sprocket) 65 'Sprocket (Idler Sprocket) 66 Sprocket (idler sprocket) 66 'Sprocket (idler sprocket) 7 Chain 71 Conveying surface 8 Base 81 Roller 85 Support member (guide pin) 88 Bracket 9 Conveyor 91 Sensor 92 Roller (conveying roller) 99 Conveyor frame

Claims (4)

[Claims] 1. A motor capable of normal rotation and reverse rotation, a rotary shaft rotatably driven by the motor, a cam attached to the rotary shaft via a one-way clutch, and the one-way clutch provided on the cam. Has a sprocket attached to the rotary shaft via another one-way clutch operating in relatively opposite rotational directions, and further has a chain driven by the sprocket. Branch device for conveyors. 2. The conveyor branching device according to claim 1, wherein a frame that supports the motor, the rotating shaft, the cam, the sprocket, and the chain is provided, a guide is provided on the frame, and a vertical direction is provided between the frame and the guide. A support member is formed on the base so as to be capable of relative movement in the directions, whereby the frame is moved in the vertical direction along with the support member provided on the base when the cam is operated. A conveyor branching device, characterized in that it is configured to be moved. 3. The conveyor branching device according to claim 1, wherein the chain driven by the sprocket is replaced with a belt. 4. The conveyor branching device according to claim 2, wherein the belt is used to replace the chain driven by the sprocket.