JPH0328007Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a conveyance device, and particularly to a conveyance device suitable for conveying complex irregularly shaped workpieces.

2. Description of the Related Art In general, there are many types of conveyance devices installed between manufacturing equipment, depending on the shape of the workpiece. A transport device is used.

In the drawing, W is a workpiece, 1 is a sprocket arranged at both ends of the conveyance device, 2 is a chain that is wrapped between the sprockets 1, 1, 3 is arranged on the chain 2 at a predetermined pitch, A box-shaped carrier that accommodates and holds a workpiece W in a fixed position is shown.

In the above conveyance device, one sprocket 1 is driven to rotate the chain 2 in a fixed direction, and the workpiece W is loaded into the carrier 3 at the conveyance starting point by an appropriate means.
be accommodated one by one. Then, by the rotation of the chain 2, the workpieces W held in the carrier 3 are transported to the end point, and at this transport end point, the workpieces W are taken out one by one from the carrier 3 by appropriate means and transported to each manufacturing facility. ing.

Problems to be Solved by the Invention By the way, the above-mentioned conveying device had the following problems.

First, the structure is complicated because the carriers 3 that accommodate the workpieces W are arranged on the chain 2 at regular intervals.

Second, the workpiece W is carried into the carrier 3.
When carrying out work, it is necessary to rotate the sprockets 1 and 1 intermittently, move the carrier 3 intermittently, and carry the work W into and out of the carrier 3 in synchronization with the movement and stopping of the carrier 3. ,
Moving and stopping the carrier 3 and loading and unloading the work W
Controlling the timing of unloading is complicated and difficult.

Thirdly, since the conveyance path is formed by the chain 2, only a linear conveyance path can be formed.

By the way, various conveyance devices are conventionally known that are composed of an endless conveyance belt, a supporting member that backs up the belt from the bottom, and a guide plate that guides and regulates the width direction of the belt. Also, since members such as the back-up support material and guide plate of the belt cannot be freely curved in the width direction of the belt, it is not possible to install the belt in a free layout depending on the situation of the installation location.

Means for Solving the Problems The present invention has been made in view of the above problems.The present invention has been developed in view of the above-mentioned problems. A conveyor belt that comes into contact with the end surface, a pair of frame plates made of thin plates arranged opposite to each other on both sides of the conveyor belt in the width direction, and extending over the entire length of the conveyor belt in the conveyor direction; They are placed facing each other at intervals that hold the workpiece in a fixed position on both sides.
and a pair of work guide plates made of thin plates extending over the entire length of the forward side of the conveyor belt in the conveyance direction; and a belt guide plate consisting of a plurality of thin plates that also guide and regulate the direction, and the thin direction of the frame plate, work guide plate, and belt guide plate is the width direction of the conveyor belt, and the plurality of locations thereof are , is a conveyance device characterized in that the conveyor belt is connected and integrated in the width direction by a tightening bolt via a spacer.

Function In this invention, the frame plate, work guide plate, and belt guide plate that make up the conveyance path are composed of thin plates in the width direction of the conveyor belt, so that they can be freely curved in the width direction of the conveyor belt. is possible.

Embodiment FIGS. 1 to 4 show an embodiment of a conveyance device according to the present invention, which is a conveyance device corresponding to the work W shown in FIGS. 5 to 7.

In FIG. 1, reference numeral 10 denotes a conveyance path of the conveyance device A; 20, 20, 20', and 20' denote a set of two support blocks disposed on both sides of the conveyance path 10; Reference numeral 30 indicates a conveyance belt disposed along the conveyance path 10.

The conveyance path 10 has a structure in which thin plates such as sheet metal are stacked with a predetermined distance maintained through spacers, and will be described below with reference to FIGS. 2 and 3.

In the drawing, 11, 11 are frame plates, 1
2, 12' are work guide plates, 13, 13, 1
3' is a belt guide plate for the conveyor belt 30, 1
4a to 14d are spacers, and 15 is a tightening bolt passing through the frame plates 11, 11, work guide plates 12, 12', belt guide plates 13, 13, 13', and spacers 14a to 14d.

At the upper part of the inner side of the frame plates 11, 11,
The upper edge is higher than the upper edge of the frame plates 11, 11,
Work guide plates 12 and 1 are respectively projected to a predetermined height.
2' is arranged, and this work guide plate 12, 1
2', belt guide plates 13, 13, 13' are arranged with a predetermined interval maintained through spacers 14a to 14d, respectively, and the frame plates 11, 11 and the workpiece guide plate 12 ,1
2', the belt guide plates 13, 13, 13' are attached to the tightening bolts 15 together with the spacers 14a to 14d.
It is assembled integrally by.

The work guide plates 12, 12' include belt guide plates 13, 13, 13' and a spacer 14a.
With a thickness of ~14d, as shown in FIG.
The intervals are set such that the lower part of the work W can be held in a fixed position by holding the lower part of the work W, and the frame plates 11 and 12 of the work guide plates 12 and 12' are
As shown in the figure, the height from the workpiece guide plate 12' on the right side in the figure is set high to correspond to the shape of the workpiece W and to stably hold the workpiece in a fixed position as described above. It has been done.

The belt guide plates 13, 13, 13' are for regulating the conveyor belt 30 at a predetermined position between the work guide plates 12, 12'. 3
0 in the vertical direction, and the higher belt guide plate 13' regulates the widthwise position of the conveyor belt 30 between it and the workpiece guide plate 12. The lower end surface of the workpiece W held in a fixed position by the workpiece guide plates 12 and 12' is
The belt guide plates 13, 13, 13' and the workpiece guide plates 12, 12' constantly abut the conveyor belt 30, which is regulated in a fixed position.

Further, as described above, the conveyance path 10 includes the frame plates 11, 11, which are thin plates, the work guide plates 12, 12', and the belt guide plates 13,
13 are integrally connected by tightening bolts 15 via spacers 14a to 14d, and therefore, although a straight shape is shown in the drawing, it can be freely curved in the width direction of the conveyance path 10. According to the installation situation of the above-mentioned conveyance device A, the conveyance path 10 can be curved or straight.

The support blocks 20, 20, 20'20' are
One set 20, 20 is on the starting end side of the conveyance path 10 (left side in FIG. 1 or 2), and this conveyance path 1
0, and the other set 20',
20' is disposed at the terminal end of the conveyance path 10 so as to sandwich the conveyance path 10 therebetween.

A driven pulley 21 is rotatably supported between the support blocks 20 and 20, and the support block 2
A drive pulley 22 is rotatably supported between 0' and 20'. One of the support blocks 20'
A drive motor 24 is disposed through a gearbox 23, and the driving force of this drive motor 24 is transmitted to the drive pulley 22 through the gearbox 23. Furthermore, each of the above-mentioned support blocks 2
Bearings 25 and 26, which function as guide pulleys, are disposed between the frame plates 11 and 11 of the transport path 10, which are held at both ends by 0, 20, 20' and 20'. The conveyor belt 30 is
It is wrapped between the driven pulley 21 and the driving pulley 22, and is also wound between the driven pulley 21 and the bearing 25 and between the driving pulley 22 and the bearing 26. .
The conveyor belt 30 has a circular cross section and is made of a material having an appropriate coefficient of friction and flexibility, such as synthetic rubber. Therefore, even if the conveyance path 10 is curved, the conveyor belt 30 has its own flexibility, so that the belt guide plates 13, 13, 1
3', the position is regulated along the conveyance path 10.

Further, a bracket 40 is installed on the support blocks 20', 20' on the terminal end side of the transport path 10, and this bracket 40 has a stopper 41 for setting the transport end position of the workpiece W, and a stopper 41 for setting the transport end position of the workpiece W. A sensor 42 for detecting the presence or absence of a workpiece W is provided.

Further, a sensor 43 for detecting the presence or absence of a workpiece W at this position is disposed via a bracket 44 near the transport end of the frame plates 11, 11.

Now, the transport operation of the workpiece W in the transport device A having the above configuration will be explained below.

The drive motor 24 is started in advance, and the drive pulley 22 is rotated at a constant speed in a predetermined direction via the gear box 23. Therefore, the conveyor belt 30 also rotates at a constant speed of the drive pulley 22, so that the belt guide plates 13, 13, 1
It circulates while being regulated to a fixed position on the transport path 10 by 3'.

In this state, the workpiece W is carried into the starting end of the transport path 10. Then, as shown in FIG. 3, the lower part of the work W is held in a fixed position by the work guide plates 12, 12', and the lower end surface of the work W is Conveyor belt 30 whose position is regulated by belt guide plates 13, 13, 13' and work guide plate 12
The weight of the workpiece W is used to press the workpiece W against the workpiece W. Due to the frictional force between the conveyor belt 30 and the lower end surface of the workpiece W, the workpiece W is moved to the workpiece guide plates 12 and 1.
The workpiece is conveyed along the work guide plates 12, 12' while being held in a fixed position by the workpiece 2'.

Then, the workpiece W is conveyed by the conveyor belt 30 to the end of the conveyance path 10, and when the end surface of the workpiece W in the conveyance direction comes into contact with the stopper 41, the lower end surface of the workpiece W and the conveyor belt 30 are brought into contact with each other. A slip occurs between the work W and the stopper 41.
It will stop at the position where it touches. Further, at this time, the sensor 42 detects the workpiece W until the end of the conveyance path 10.
It is detected that the work W has been transported, and in response to a signal from the sensor 42, the workpiece W is transported from the transport device A toward a predetermined manufacturing device by an appropriate transport device.

That is, the conveyance device A according to the present invention can transport the workpiece W
Since the work W is conveyed by friction with the conveyor belt 30, the workpiece W can be carried to the starting end of the conveyance path 10 at an appropriate timing.
At the end of the conveyance path 10, the workpiece W can be carried out at an appropriate timing.

Effects of the invention According to the invention, the frame plate, work guide plate, and belt guide plate that make up the conveyance path can be bent in the width direction of the conveyor belt, increasing the degree of freedom in layout according to the situation of the installation location of the conveyance device. It has the effect of being large.

[Brief explanation of drawings]

1 to 4 are drawings showing one embodiment of the conveying device according to the present invention, in which FIG. 1 is a side view of the entire device, FIG. 2 is a plan view of FIG. 1, and FIG. 1 is an enlarged vertical sectional view of the main part of FIG. 1, and FIG. 4 is a longitudinal sectional front view of the main part of FIG. 5 to 7 show an example of a conventional conveying device. FIG. 5 is a schematic side view of the entire device, FIG. 6 is a side view showing details of the main parts of FIG. FIG. 7 is a front view including a partial cross section of FIG. 6. W... Workpiece, A... Conveyance device, 10... Conveyance path, 12, 12'... Work guide plate (guide plate), 30... Conveyance belt.

Claims (1)

[Scope of Claim for Utility Model Registration] A conveyor belt that is wound endlessly between a driving pulley and a driven pulley arranged at both ends of the conveyance path and comes into contact with the lower end surface of the workpiece, and a conveyor belt on both sides in the width direction of the conveyor belt. placed facing each other,
A pair of frame plates made of thin plates extending along the entire length of the conveyor belt in the conveyor direction; A pair of work guide plates made of thin plates extending over the entire length of the forward side in the conveyance direction, and a pair of work guide plates that back up the lower surface of the conveyor belt over the entire length of the forward side, and also guide the conveyor belt in the width direction. and a belt guide plate made of a plurality of thin plates for regulating, the thin direction of the frame plate, work guide plate, and belt guide plate is the width direction of the conveyor belt, and the plurality of locations of the conveyor belt are A conveyance device characterized in that it is connected and integrated in the width direction by a tightening bolt via a spacer.