JPH05310321A - Goods carrying device - Google Patents

Abstract

PURPOSE:To provide a goods carrying device which is capable of improving the stopping accuracy at the stopping position of the goods by a simple constitution. CONSTITUTION:A guide 2 parallel with a track 1 where a geed (b) is slid is provided, and a moving body 3 mounted on a pushing member 4 of the goods (b) which is provided in a collapsible manner relative to the upper surface of the track 1 by an operating means 9 is engaged with the guide 2 in a movable manner, and a reciprocating means 5 is connected to this moving body 3. This simple constitution improves the stopping accuracy greatly at the stopping position of the goods.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article transporting apparatus capable of stopping an article at a desired fixed position when the article is transported in the filling and packaging industry.

[0002]

2. Description of the Related Art Conventionally, in the filling and packaging industry, when a container or the like is stored in or taken out from a case, a chain conveyor with a bar 40 as shown in FIG.
It is common practice to transport the case 42 by using 41,41.

This is a double-row chain conveyor 41, 4
1 is horizontally stretched and is driven in one direction by a motor with a brake (not shown) or the like, and is attached to the chain conveyors 41, 41 at intervals.
Straddle the pushing bar 40 orthogonal to the traveling direction to 3,43,
The pushing bar 40 abuts against the rear side of the case 42 and pushes it to intermittently respond to and stop the device 44 at the boxing position or the take-out position of the container to perform a predetermined work.

The container box packing position or the take-out position is always installed at a fixed position with respect to the movable conveyor. Therefore, each case on the conveyor is accurately positioned at this fixed position. In order to obtain the above-mentioned work efficiency and high accuracy, it is required to correspond to and stop.

However, the above-mentioned device is composed of a chain conveyor and a motor with a brake, and slips or variations caused by the brake of the motor that is stopped when the case reaches a fixed position, or the tension of the stretched chain. The stop position is not determined in each case due to stretching or backlash, which makes the work uncertain.

[0006] Further, the work of returning a case that has gone too far from the stop position to a fixed position is extremely difficult, time-consuming, and inefficient.

Further, in the case of driving by the motor with a brake, when the conveyor is started and stopped, the movement is abrupt and the vibration is large, so that the case deviates and the correspondence to the fixed position becomes non-uniform. If the transfer speed of the conveyor is increased in order to improve the working capacity, the above phenomenon will occur. There were various problems such as.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is provided with a guide parallel to the track along which articles slide, and the guide is provided on the upper surface of the track by operating means. On the other hand, a moving body, which is provided with an article pushing member that is capable of undulating, is engaged with the moving body so as to move forward and backward, and the reciprocating means is linked to this moving body, so that the stopping accuracy of the article at the stop position is improved with a simple structure. It is an object of the present invention to provide an article transporting device that can be operated.

[0009]

Means for Solving the Problems The means of the present invention for achieving the above-mentioned object is a track on which an article slides in a substantially horizontal state, a guide parallel to the track, and a guide which is movable back and forth to the guide. A combined moving body, an article pushing member which is attached to the moving body and is provided to be movable up and down with respect to the track upper surface by an operating means, and a reciprocating means for reciprocating the moving body in association with the moving body, In the configuration of the article conveying device provided with.

[0010]

The present invention configured as described above has the following operations.

When the article supplied on the track reaches the article transporting device, the pushing member of the movable body which has been returned to the front position of the article transport by the reciprocating means is erected by the operating member to move on the track. Project to.

When the reciprocating means is operated, the moving body advances along the guide, the pushing member abuts the article, and slides on the track as the moving body advances.

When the article reaches the desired position, the article is stopped by stopping the reciprocating means. At this time, the pushing member contacting the article falls down by the operation of the operation means and is buried from the upper surface of the track. Therefore, in this state, when the reciprocating means is actuated, the moving body retreats, the pushing member passes through the lower surface of the article and moves to the rear side, and waits for the next article transfer.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the article conveying apparatus according to the present invention will be described below with reference to the drawings.

1 to 3, A is an article conveying device,
It basically comprises a track 1, a guide 2, a moving body 3 engaged with the guide 2, a pushing member 4 attached to the moving body 3, and a reciprocating means 5 of the moving body 3.

The article b used for carrying in the article carrying apparatus A is, for example, a cardboard box for storing a predetermined number of containers such as bottles, a rectangular box such as a P case, etc. In the transfer, the fixed position of the container box packing machine or the container unloading machine installed on the line in the filling and packaging system for fluid etc. is accurately corresponded.

The track 1 is formed in the shape of a flat table so that the article b slides in a substantially horizontal state, and extends in a long groove 6 through which a pushing member 4, which will be described later, passes in the moving direction. Have been drilled.

The above-mentioned guide 2 has a pair of front and rear portions which are placed horizontally below the track 1 in a substantially horizontal state parallel to the track 1.

The moving body 3 is engaged with the guide 2 via a slide cylinder 7 so as to be movable back and forth.

The pushing member 4 has a base portion attached to one side of the moving body 3 by a support shaft 8 so that the pushing member 4 can be raised and lowered. When the pushing member 4 is vertically erected by the operating means 9, as shown in FIG. , The top end of the track 1 abuts against the lower rear part of the article b, and when tilted by the operating means 9 as shown in FIG. It is configured so as not to come into contact with the article b placed on it.

The operating means 9 for operating the pushing member 4 is a fluid cylinder, a rotary actuator,
A known motor such as a motor can be used. In the case of the fluid cylinder shown in FIGS. 1 to 3, an air cylinder is used.
The base of 10 is rotatably attached to the moving body 3, and the tip of the rod 11 is pivotally supported by a mounting piece 12 attached to the pushing member 4, and when the rod 11 is extended, the support shaft 8 is centered. When the rod 11 retracts, it tilts.

The reciprocating means 5 reciprocates the moving body 3, that is, the pushing member 4 within a predetermined stroke range, and advances the article b with which the pushing member 4 abuts in the forward path. The movable rack 13a having gears engraved is fixed to the entire length of the lower side of the body 3, and
A fixed rack 13b is provided on the bottom of which a gear is engraved, and the pinion gear meshes with the movable and fixed racks 13a, 13b.
14 by means of a rotatable rocking lever 17 whose one end is pivotally attached to a shaft 16 of a frame 15 into an engaging hole 17a at the other end through a roller 14b attached to a support shaft 14a of the pinion gear 14. And is rotatably supported.

A connecting rod 19 is provided in the middle of the swing lever 17.
One end of which is supported by a shaft 20, and the other end of the connecting rod 19 is attached by a shaft 22 to the outer peripheral portion of the crank disk 21, and the rotation of the motor 23 is transmitted through an electromagnetic clutch 24 to reduce the speed. The crank disk 21 is attached to the output shaft 26 of the machine 25, and the other end shaft of the speed reducer 25 is provided with a brake 27 that stops the output shaft 26 when the motor 23 is turned off. There is.

In FIG. 1 and FIG. 2, 29 is a detecting means for detecting the rotational position of the crank disc 21, that is, for detecting the forward end of the pushing member 4. In the case shown in FIG. Then, a magnet switch corresponding to the detector 30 attached to the outer peripheral edge of the crank disk 21 is used.
In the case shown in (1), a rotary encoder attached via a joint 31 is used at the other end of the output shaft 26 in the speed reducer 25, and the rotation angle of the output shaft 26 is detected to detect the rotation of the pushing member 4. The moving position is detected.

Next, the operation of the apparatus of the present invention will be described.

When the article b is supplied onto the track 1 and reaches the article conveying device A, the article b stands by on the track 1.

Then, the crank disk 21 is rotated through the speed reducer 25 by the power supply to the motor 23 in the reciprocating means 5, and the rotation causes the connecting rod 19 to be actuated so that the swing lever 17 is operated.
Since the pinion gear 14 mounted in the engaging hole 17a in the upper part of the rocking lever 17 rolls on the fixed rack 13b, the movable rack 13a on the upper part, that is, the moving body 3 is moved.
Moves forward along the guide 2, so that the pushing member 4, which is erected by the operating member 9 and protrudes on the track 1, comes into contact with the lower rear portion of the article b on the track 1.

Further, when the moving body 3 moves forward and pushes the article b by the operation of the reciprocating means 5, the article b slides on the track 1 and is conveyed.

Detecting means 29 when the crank disk 21 rotates half a turn
Detection signal, the electromagnetic clutch 24 is disengaged and the rotation transmission from the motor 23 is cut off.
27 is actuated to stop the crank disk 21 and, therefore, the pushing member 4 is stopped to move the article b to a desired fixed position.
Is used for packing and taking out containers and the like.

On the other hand, since the operating means 9 of the pushing member 4 is actuated and the pushing member 4 is pulled down to be buried from the upper surface of the track 1, the pushing member 4 does not collide with the article b when it is moved. You can move smoothly.

Then, since the electromagnetic clutch 24 is engaged and the brake 27 is released, the crank disk is again released.
Reference numeral 21 starts rotation and swings the swing lever 17 in the opposite direction, and accordingly, the moving body 3 moves backward and the pushing member 4 is pushed.
Is the limit of its backward movement, that is, it returns to the standby position. Similarly to the above, when the crank disk 21 makes a half rotation, the electromagnetic clutch 24 is disengaged by the detection signal of the detection means 29 and the motor
The rotation transmission from 23 is cut, and the brake 27 of the speed reducer 25 is activated to stop the crank disk 21.

Since the operating means 9 of the pushing member 4 is actuated to raise the pushing member 4 and project it from the upper surface of the track 1,
Since it corresponds to the article b placed on the track 1, the next article b can be prepared for transfer.

Therefore, in the transfer of the article b by the pushing member 4, the accuracy of the stop position of the article b can be improved as much as possible by adopting the rack and pinion type and the crank type which gives the reciprocating motion. Of course, since the rotation of the crank disk 21 can obtain a smooth movement at the time of starting and stopping the pushing member 4, delusion of the article b due to an impact or the like can be prevented.

In the case of the crank type, the clutch
Even if the crank disk 21 may overrun to some extent due to an uncertain operation of 24 or the brake 27, the movement of the article b beyond the crank top and bottom dead center is inevitably lost.

A large-scale crank mechanism is required to obtain the stroke for conveying the article b only by the crank type. In this embodiment, the stroke of the crank disk 21 is first amplified by the swing lever 17. Further, the amplified movement of the swing lever 17 causes the pinion gear 14 to roll on the fixed rack 13b, so that the movable rack 13a to which the pushing member 4 is attached is twice as long as the reciprocating rotational movement distance of the pinion gear 14. It is possible to make a reciprocating linear movement, and the size of the device is reduced.

Further, with the above construction, the device can be incorporated in a narrow space in a machine, the entire device can be manufactured compactly, and the same high effect as that of a device using a numerical control motor can be obtained, resulting in cost reduction. Moreover, a special engineer is not required as in the case of using the numerically controlled motor for maintenance or the like.

[0037]

As described above, the article conveying apparatus according to the present invention is provided with a guide parallel to the track along which the article slides,
With this guide, a moving body having an article pushing member provided to be movable up and down with respect to the track upper surface is engaged with the guide so as to move forward and backward, and the reciprocating means is linked to the moving body. With such a structure, it is possible to significantly improve the stop accuracy of the article at the stop position, which is a special effect.

[Brief description of drawings]

FIG. 1 is a front view of a main part showing an embodiment of an article conveying device according to the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is an explanatory diagram showing a state in which a pushing member in FIG. 1 is retracted.

FIG. 4 is a perspective view showing a transfer state of articles in a conventional apparatus.

[Explanation of symbols]

 b container 1 orbit 2 guide 3 moving body 4 pushing member 5 reciprocating means 9 operating means

Claims (1)

[Claims] 1. An orbit along which an article slides in a substantially horizontal state, a guide parallel to the orbit, a movable body engaged with the guide so as to advance and retreat, and the orbit attached to the movable body by an operating means. An article conveying apparatus comprising: an article pushing member that is provided up and down relative to an upper surface of the article; and a reciprocating unit that reciprocates the moving body in association with the moving body.