JPH07117839A - Transfer mechanism - Google Patents

Abstract

PURPOSE:To provide a transfer mechanism by which an object to be conveyed can be surely transferred from the rear end part of one chain conveyor to the front end part of the other adjacent chain conveyor, and the maintenance is easily carried out. CONSTITUTION:O-rings 4a, 4b, which are made of a material with a large coefficient of friction and give propelling force to an object 8 to be conveyed while touching and supporting the object 8 to be conveyed, are arranged on the outer circumferential parts of guide rollers 9a, 9b, which are arranged in at least one of a sprocket shaft 6a in the rear end part 2a of one chain conveyor 1a and a sprocket shaft 6b in the front end part 2b of the other chain conveyor 1b. The guide rol1ers 9a, 9b, in which the O-rings 4a, 4b are fitted, are arranged on both end sides, which are situated in the further outsides of bearing mechanisms 10a, 10b rotationally supporting sprockets 7a, 7b and the sprocket shafts 6a, 6b, of the sprocket shafts 6a, 6b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer mechanism for transferring an object to be conveyed such as a work or a container accommodating a work from the end of one chain conveyor to the start of another adjacent chain conveyor. Regarding

[0002]

2. Description of the Related Art For example, when a work for an electronic component or a container storing the work is to be transported, a transport system using a chain conveyor as shown in FIG. System) is used.

By the way, in the transfer method using this chain conveyor, as shown in FIG. 4, from one terminal end 22a of one of the two adjacent chain conveyors 21a, 21b to the other chain conveyor 21a. It may be necessary to transfer the transported object 28 to the starting end portion 22b of 21b.

However, in the conventional transfer method using the chain conveyor, as shown in FIG. 5, the chain 23a is formed at the end portion 22a of one adjacent chain conveyor 21a and the start portion 22b of the other chain conveyor 21b. , 23b forming chain plates 24a, 2
4b is a sprocket 2 attached to the sprocket shafts 26a, 26b with the pins 25a, 25b as rotation shafts.
7a, 27b are sequentially bent, and the outer peripheral portion thereof does not have a smooth arc shape, so that the transferred object 28 is transferred from the end portion 22a of one chain conveyor 21a to the start end portion 22b of the other chain conveyor 21b. There is a problem that the stability of the transported object 28 at the time of carrying out is lowered, and sufficient transfer reliability cannot be ensured.

Therefore, in order to solve such a problem, as shown in FIG. 6, the sprocket shafts 26a and 26b are provided.
A cylindrical guide roller 29 with no step or irregularity on the outer periphery
Although a method of providing a and 29b has been proposed, when a metal guide roller is used as the guide rollers 29a and 29b, the transported object 28 and the guide rollers 29a and 29b are used.
Since the frictional force of b is small, there is a problem that a sufficient propulsive force cannot be applied to the transported object 28 and stable transfer cannot be performed.

When guide rollers having rubber linings on their surfaces are used as the guide rollers 29a and 29b, the frictional force between the guide rollers 29a and 29b and the object to be conveyed 28 is large and a sufficient propulsive force is applied to the object 28 to be conveyed. However, if the lined rubber is worn, it is necessary to remove the guide rollers 29a and 29b and re-line the rubber, which is troublesome for maintenance. And there is a problem that the cost becomes large.
Further, since the guide rollers 29a and 29b are disposed between the two sprockets (between 27a and 27b), in order to remove the guide rollers 29a and 29b,
A bearing mechanism 30a for rotatably supporting at least one of the two sprockets 27a, 27b sandwiching the guide rollers 29a, 29b and the sprocket shafts 26a, 26b.
At least one of 30b must be removed, which is troublesome and inefficient.

The present invention solves the above-mentioned problems, and it is possible to reliably transfer an object to be conveyed from the end portion of one chain conveyor to the start portion of the other adjacent chain conveyor. It is an object to provide a transfer mechanism that is easy to maintain.

[0008]

In order to achieve the above object, the transfer mechanism of the present invention transfers an object to be conveyed from the end portion of one chain conveyor to the start portion of the other adjacent chain conveyor. At least one of the sprocket shaft at the end of one chain conveyor and the sprocket shaft at the start of the other chain conveyor is made of a material with a large friction coefficient and comes into contact with an object to be transferred. It is characterized in that a guide roller fitted with an O-ring for supporting the object and applying a propulsive force to the object to be conveyed is fitted to the outer peripheral portion of the O-ring.

Further, the guide rollers fitted with the O-rings are arranged on both ends of the sprocket shaft outside the bearing mechanism for rotatably supporting the sprocket and the sprocket shaft.

[0010]

An O-ring made of a material having a large friction coefficient is provided on the outer peripheral portion of the guide roller disposed on at least one of the sprocket shaft at the end of one chain conveyor and the sprocket shaft at the start of the other chain conveyor. The O-ring's arcuate outer peripheral portion comes into contact with the transported object to support the transported object, so that the stability of the transported object is improved and sufficient propulsive force is applied to the transported object. Is given. Therefore, the reliability in the step of transferring the transported object from the end portion of one chain conveyor to the start portion of the other adjacent chain conveyor is significantly improved.
In addition, the O-ring can be easily attached and detached, and can be easily replaced when it is worn, so that the labor and cost of maintenance can be reduced.

Further, in the transfer mechanism in which the guide rollers fitted with the O-rings are arranged on both end sides of the sprocket shaft outside the bearing mechanism for rotatably supporting the sprocket and the sprocket shaft, the guide roller conveys the material. Since both ends of the object are supported, the stability of the transported object in the transfer process is further improved, and when the O-ring is worn, it is possible to easily replace only the O-ring without removing the sprocket or the bearing mechanism. It becomes possible and its maintenance becomes extremely easy.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a transfer mechanism according to an embodiment of the present invention.

In the transfer mechanism of this embodiment, the sprocket shaft 6a of the terminal end 2a of the chain conveyor 1a on one side (the sending side) and the sprocket shaft 6b of the start end 2b of the chain conveyor 1b on the other side (the receiving side) are connected. Guide rollers 9a, in which O-rings 4a, 4b made of a material having a large friction coefficient and elasticity are fitted on both end sides,
9b is provided. The O-rings 4a and 4b are
The guide rollers 9a and 9b are fitted into the semicircular groove 5 (FIG. 2) formed in the outer peripheral portion thereof. In this embodiment, synthetic rubber O-rings are used as the O-rings 4a and 4b. However, the O-ring is not limited to this, and it is possible to use an O-ring made of various materials having a large friction coefficient such as natural rubber and elastic resin materials.

The guide rollers 9a, 9b (and the O-rings 4a, 4b) have an outer diameter (outer diameter with respect to the outer peripheral surfaces of the O-rings 4a, 4b) D (FIG. 2) of which the sprocket 7 is.
It is configured to be slightly larger than the outer diameters of a and 7b (outer diameters of the outer peripheral surfaces of the chains 3a and 3b) from the end portion 2a of one chain conveyor 1a to the start end portion of the other chain conveyor 1b. In the transfer process in which the transported object 8 is transported to 2b, the outer peripheral portions of the O-rings 4a and 4b come into contact with the lower surface of the transported object 8.

The sprocket shafts 6a and 6b each have two bearing mechanisms (for example, a pillow unit) 10
It is rotatably supported by a and 10b, and sprockets 7a and 7b are attached between the bearing mechanisms 10a and 10b and the guide rollers 9a and 9b. And
The sprocket shaft 6a,
Chains 3a and 3b for rotating and driving 6b are fitted.

In the transfer mechanism constructed as described above, the arcuate outer peripheral portions of the rubber O-rings 4a and 4b fitted in the outer peripheral portions of the guide rollers 9a and 9b come into contact with the transported object 8. To support the object to be conveyed 8
The stability is improved and a sufficient propulsive force is applied to the transported object 8. As a result, one chain conveyor 1
The reliability of the process of transferring the transported object 8 from the terminal end 2a of the a to the starting end 2b of the other chain conveyor 1b is significantly improved. In addition, the O-rings 4a and 4b can be easily attached and detached, and can be easily replaced when they are worn, and the labor and cost of maintenance can be reduced.

Further, in the above embodiment, the O-ring 4a,
The guide rollers 9a, 9b fitted with 4b are arranged at positions outside the sprockets 7a, 7b and the bearing mechanisms 10a, 10b, and both ends of the transported object 8 are supported by the guide rollers 9a, 9b. Therefore, the stability of the transported object 8 in the transfer process is further improved, and O
If the rings 4a, 4b become worn, the sprocket 7
It is possible to easily replace only the O-rings 4a and 4b without removing the a and 7b and the bearing mechanisms 10a and 10b, and the maintenance thereof can be performed very easily.

In the above embodiment, the sprocket shaft 6
Two guide rollers 9a (9b) on both ends of a (6b)
The case where the sprocket shaft 6 is provided has been described.
It is also possible to dispose one guide roller having one or more O-rings between the a (6b) bearing mechanisms 10a (10b) (that is, the central portion of the sprocket shaft 6a (6b)). , And the sprocket shaft 6a (6
It is also possible to dispose the guide rollers at a total of three positions between the two bearing mechanisms 10a (10b) in b) and both ends on the outside of the sprocket 7a (7b). However, considering the ease of O-ring replacement and the stability of the transported object,
As shown in FIG. 1, two guide rollers 9a are provided outside the sprocket 7a (7b) of the sprocket shaft 6a (6b).
It is preferable to provide (9b).

Further, in the above embodiment, the guide roller 9
Groove 5 for fitting O-rings 4a, 4b of a, 9b
The case where the shape (cross-sectional shape) is a semicircular shape has been described, but the shape of the groove 5 is not limited to this, and as shown in FIGS. 3 (a) and 3 (b), it is V-shaped. It is also possible to use other shapes such as a U shape and a U shape.

Further, in the above embodiment, guide rollers provided with O-rings 4a and 4b on both the sprocket shafts 6a and 6b of the one (sending side) chain conveyor 1a and the other (receiving side) chain conveyor 1b. 9a, 9
Although the case where b is provided has been described, the basic effect of the present invention can also be obtained by providing a guide roller having an O-ring on only one of them.

The transfer mechanism of the present invention is not limited to the above-mentioned embodiment in other points as well, and it relates to a specific structure and interval of chain conveyors adjacent to each other to be transferred, and the gist of the present invention Within the range of, various applications and modifications can be added.

[0022]

As described above, the transfer mechanism of the present invention is
With the sprocket shaft at the end of one chain conveyor,
At least one of the sprocket shafts at the start ends of the other chain conveyors has an O-ring, which is made of a material having a large friction coefficient and which provides a propulsive force to the transported object while contacting the transported object and supporting the transported object. Since the guide roller fitted in the section is arranged, the arc-shaped outer peripheral portion of the O-ring surely contacts the transported object to improve the stability of the transported object and to sufficiently propel the transported object. Power is given. Therefore, it is possible to significantly improve the transfer reliability of the transported object from the end portion of one chain conveyor to the start portion of the other chain conveyor.

In addition, the O-ring can be easily attached and detached, and can be easily replaced when it is worn, so that the labor and cost of maintenance can be reduced.

Further, by disposing guide rollers fitted with O-rings on both ends of the sprocket shaft outside the bearing mechanism that rotatably supports the sprocket and the sprocket shaft, both ends of the conveyed object are Supporting by guide rollers makes it possible to further improve the stability of the transported object in the transfer process, and when the O-ring is worn, it is easy to use only the O-ring without removing the sprocket and the bearing mechanism. It becomes possible to replace it, and its maintenance can be performed very easily.

[Brief description of drawings]

FIG. 1 is a perspective view showing a transfer mechanism according to an embodiment of the present invention.

FIG. 2 is a sectional view showing the structure of a guide roller of the transfer mechanism according to the embodiment of the present invention.

3 (a) and 3 (b) are cross-sectional views showing modified examples of the groove structure of the guide roller of the transfer mechanism according to the embodiment of the present invention.

FIG. 4 is a perspective view showing a conventional transfer mechanism.

FIG. 5 is a view showing a main part of a conventional transfer mechanism.

FIG. 6 is a view showing another conventional transfer mechanism.

[Explanation of symbols]

 1a, 1b Chain conveyor 2a End part of one chain conveyor 2b Start end part of the other chain conveyor 3a, 3b Chains 4a, 4b O-ring 5 Grooves 6a, 6b Sprocket shaft 7a, 7b Sprocket 8 Conveyed object 9a, 9b Guide roller 10a, 10b bearing mechanism

Claims (2)

[Claims] 1. A transfer mechanism for transferring an object to be conveyed from a terminal end of one chain conveyor to a starting end of another adjacent chain conveyor, wherein a sprocket shaft at the terminal end of one chain conveyor,
At least one of the sprocket shafts at the start ends of the other chain conveyors has an O-ring, which is made of a material having a large friction coefficient and which provides a propulsive force to the transported object while supporting the transported object while supporting it. A transfer mechanism characterized in that a guide roller fitted in the section is arranged. 2. A guide roller having the O-ring fitted therein is arranged at both ends of a sprocket shaft outside a bearing mechanism that rotatably supports the sprocket and the sprocket shaft. Transfer mechanism.