JP3296775B2 - Work transfer belt using mesh belt - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt for transporting a workpiece using a metal mesh belt, and more particularly to a technique for preventing a transported workpiece from being damaged by the belt itself.

[0002]

2. Description of the Related Art Heretofore, as a work transfer belt for transferring an object (work) which is relatively heavy and is in a high temperature state, a plurality of spiral metal filaments have been wound right and left. There is known a mesh belt formed by connecting these right-handed and left-handed spirals alternately in the transport direction by rods (power bones). The mesh belt travels in a well-balanced manner when traveling for transporting the work, and prevents deformation and meandering of the belt due to tension. Therefore, the mesh belt is used for applications requiring relatively high tensile strength and transport strength.

[0003] The above-mentioned mesh belt is made of a metal wire having a large diameter in order to secure the transport strength. Therefore, the work mounting surface does not become flat and the work is easily scratched. There has been proposed a mesh belt having a multilayer structure in which a mesh belt made of a metal wire with a small wire diameter is mounted on the belt to absorb an impact given to the work when the work is placed. The mesh belt of this multilayer structure is connected by connecting the spiral parts of the plurality of mesh belts with a spring, and the lower mesh belt is used as a strength belt for securing the transport strength, and the mesh belt attached thereon is used. As a mat belt for shock absorption,
Each belt is assigned its role.

[0004]

However, according to the above-described conventional mesh belt for a transfer device, the spring connecting the strength belt and the mat belt is located above the work mounting surface of the mat belt. The spring may protrude, and the protruding spring may damage the work placed on the mat belt. In particular, when the surface of the work that comes into contact with the belt is flat, the problem is significant. In order to connect the strength belt and the spiral part of the mat belt with a spring by connecting the two belts, the mating belt must be replaced with the strength belt because the spring must be connected at many places. -There is a problem that it takes a long time to install.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is intended to cushion an impact on a work so that the work is not damaged when the work is placed. It is an object of the present invention to provide a work transport belt using a mesh belt that can be easily replaced and attached to a strength mesh belt.

[0006]

According to a first aspect of the present invention, there is provided a workpiece transfer belt using a mesh belt, wherein a plurality of mesh belts each formed by knitting metal filaments in a mesh shape are laminated. A work transport belt comprising: a strength mesh belt formed by connecting a plurality of spiral metal filaments extending in a direction orthogonal to the transport direction by the belt in the same transport direction; and A mesh belt for cushion configured by connecting a plurality of spiral metal filaments having a smaller diameter than the mesh belt for strength extending in the orthogonal direction in the same conveying direction, and a spiral mesh belt for cushion. Part of the mesh belt for cushion is inserted between the spirals of the mesh belt for strength, and the mesh belt for cushion is Mounted on the belt, it is obtained by connecting the mesh belt and strength mesh belt cushion by inserting the connecting rod into the mutually inserted encased within both spiral.

In the above construction, the spirals of the mesh belt for strength and the mesh belt for cushion are connected by inserting the spirals of the mesh belt for strength and the mesh belt for cushion into each other, and inserting the connecting rods into both spirals. Therefore, the connecting rod does not protrude from the work mounting surface, and the flatness of the upper surface of the transfer belt on which the work is mounted can be increased. Therefore, the contact surface between the work and the transfer belt is flat. Even if it does, it is avoided that the projecting portion of the transport belt partially hits the work, and the work is hardly damaged. In addition, both belts are connected by inserting or removing the connecting rod,
Or the connection can be disconnected, so assembling the belt
Exchange and repair can be performed easily.

[0008] A work transport belt using the mesh belt according to the second aspect is a work transport belt using the mesh belt according to the first aspect, wherein the connecting rod is inserted through the mesh belt for the cushion. Part of the spiral is formed larger than other spirals, and the span length of the connecting rod insertion portion adjacent to the spiral in the belt conveyance direction is adjacent to the connection rod insertion portion of the strength mesh belt in the belt conveyance direction of the spiral. It is configured to be longer than the matching span length.

In the above configuration, since the spiral through which the connecting rod is inserted is larger than the other spirals,
It becomes easy to insert the spiral of the mesh belt for cushion into the spiral of the mesh belt for strength and to insert the connecting rod. Also, the span length of the spirals through which the connecting rods of the cushion mesh belt are inserted is longer than that of the strength mesh belt, and the cushion mesh belt of the cushion mesh belt passing through the outer peripheral side at the corner portion of the endless belt. This corresponds to a longer circumference.

A work transport belt using the mesh belt according to claim 3 is a work transport belt using the mesh belt according to claim 1 or 2, wherein Another cushion mesh belt made of a metal wire having a diameter smaller than that of the metal wire is mounted on the cushion mesh belt.

In the above configuration, another cushion mesh belt made of a metal wire having a smaller diameter is mounted on the cushion mesh belt, so that the transport belt has a three-layered structure, and the transport belt has a shortest contact time. The mesh belt on the upper surface can be made of a thin mesh, and can have a flatness and a cushioning property. Thereby, the impact given to the work when the work is placed is reduced.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A mesh belt for a transfer device according to one embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view schematically showing a transfer device provided with a mesh belt according to one embodiment of the present invention. The transfer device 1 is for transporting a relatively heavy work in a high temperature state such as a flat cathode ray tube, for example, and is configured to be able to transfer the work in the work transfer region 15 by the work transfer mesh belt 2. Have been. The mesh belt 2 for transporting a workpiece has a configuration in which mesh belts obtained by knitting metal filaments in a mesh shape are superposed in a plurality of layers (details will be described later). The transport device 1 includes:
Main rollers 3 and 4 are provided for supporting the mesh belt 2 and keeping the mesh belt 2 in a tensioned state near the work transfer area 15 so that the work can be placed thereon. Below the main rollers 3 and 4, a driving roller 5 rotated by a driving device (not shown) and a plurality of driven rollers 6 and 7 for holding the mesh belt 2 in an endless annular shape are provided.

A pressing roller 8 is provided in the vicinity of the driving roller 5 so as to be in contact with the driving roller 5, and the driving roller 5 and the pressing roller 8 sandwich the mesh belt 2 and pressurize to drive. The driving force of the roller 5 is transmitted to the mesh belt 2. An adjusting roller 10 for adjusting the tension of the mesh belt 2 is provided beside the driving roller 5 and the pressing roller 8. The adjusting roller 10 is configured to freely move in the horizontal and horizontal directions, and the tension can be adjusted by changing the degree of bending of the mesh belt 2 by moving the adjusting roller 10 in the horizontal direction. The mesh belt 2 is stretched around the main rollers 3 and 4, the driving roller 5, the driven rollers 6 and 7, the pressing roller 8, and the adjusting roller 10, and runs with the driving force from the driving roller 5.

A guide member 12 for guiding the traveling of the mesh belt 2 is provided between the main rollers 3 and 4, and the mesh belt 2 is supported by the guide member 12 from below. The work mounting surface of the mesh belt 2 is supported by the main rollers 3 and 4 on both sides,
The lower part is supported by the guide member 12 so as to withstand the weight when the work is placed. With this configuration, the work is placed and transferred on the mesh belt 2 in the work transfer area 15.

Next, a mesh belt 2 having a multilayer structure
Will be described in detail with reference to FIGS. FIG.
(A) is a top view showing a strength belt in a state where a mat belt is partially connected thereto, (b) is a side view thereof, FIG. 3 (a) is a top view of the mat belt, and (b) is a side view thereof. FIG. 4 is a perspective view showing a state in which a mat belt is mounted on a strength belt, FIG. 5A is a top view showing a part of the cushioning belt in an enlarged manner, and FIG. FIG. 6 is a schematic side view showing a state in which a buffer belt is mounted on a mat belt. The mesh belt 2 is provided with a strength belt (strength mesh belt) 21 provided to secure a transfer strength that can withstand the weight of the work, and a shock applied to the work at the time of placing the work is buffered. And a mat belt (cushion mesh belt) 22 mounted on a strength belt 21 for imparting a mechanical strength, and a mat belt (cushion mesh belt) 22 for further improving shock absorption and flatness. And a three-layer structure including a shock absorbing belt 23.

The strength belt 21 is formed by forming a plurality of metal filaments having a large wire diameter into right-handed and left-handed spirals 21a and 21b having a belt width, and the right-handed and left-handed spirals 21a. , 21b are knitted in a mesh shape by alternately connecting rods (power bones) 24 in the work transfer direction.

The mat belt 22 is formed of a spirally wound metal wire having a smaller diameter than the strength belt 21.
The left-handed spirals 22a and 22b are alternately connected by a rod 25 in the work transfer direction.
The shapes of 2a and 22b are spiral 2 of the strength belt 21.
It is formed smaller than 1a and 21b. The mat belt 22 is provided with inverted triangular spirals 26 having a diameter larger than that of the other spirals 22a and 22b at regular intervals for connection with the strength belt 21. In the strength belt 21 and the mat belt 22 having such a configuration, since the rods 24 and 25 can move within the spiral, the belts 21 and 22 have a certain degree of elasticity in the connection direction. In FIG. 2A,
The mat belt 22 on the strength belt 21 shows only a part.

The cushioning belt 23 has a shape in which a plurality of fine metal wires 29 having a smaller wire diameter than the mat belt 22 are provided with irregularities in the length direction thereof. As shown in FIG. 5 (b), they are connected so as to be connected in the horizontal direction, and are configured in a mesh shape finer than the mat belt 22. The surface of the buffering belt 23 is corrugated with a lattice-like uneven shape as shown by hatched crosses in FIG. 5 (a). This is performed by passing the belt in the state between the concave gear and the convex gear. FIG.
In (a), only a part of the mesh structure of the metal filament 29 is shown in an enlarged manner.

The connection between the strength belt 21 and the mat belt 22 is performed as follows. The mat belt 22 is mounted on the strength belt 21 such that the spiral 26 having a large diameter of the mat belt 22 is inserted between the spirals of the strength belt 21 from above the strength belt 21. By this mounting, spiral 2 of mat belt 22
6 and the spiral of the strength belt 21 overlap each other.
As shown in (1), both spirals of the strength belt 21 and the mat belt 22 are inserted through a rod (connecting rod) 27. The rod 27 is inserted through the mat belt 22
Is performed in all of the spirals 26 disposed in the spiral. Further, the span B of the spiral 26 of the mat belt 22 is configured to be longer than the span A of the spiral in which the rod 27 is inserted in the strength belt 21,
The mat belt 22 is slightly contracted and the strength belt 21 is
Attached to. By being attached in this way,
It is possible to cope with the fact that the circumference of the mat belt 22 passing through the outer peripheral side at the corner portion of the endless belt becomes longer.

As shown in FIGS. 5A and 6, the connection of the buffer belt 23 to the mat belt 22 is performed at the widthwise end of the buffer belt 23 and at the center of the buffer belt 23. This is performed by sewing with a plurality of wires 30 and 31 at predetermined intervals in the running direction. The interval at which the wire is stopped is a relatively short span C at the widthwise end of the buffer belt 23.
At the center of the buffering belt 23, the span D is longer than the interval A. Also, when connecting the two wires, the notch of the wires 30 and 31 should be on the lower side (the opposite side to the work mounting surface), and the wire 3 should be connected to the work mounting surface.
The holes at 0, 31 do not protrude.

As described above, according to the mesh belt 2 of the present embodiment, the connection or disconnection of the strength belt 21 and the mat belt 22 is performed by inserting or removing the rod 27 into or from the spiral portion. The belt can be easily replaced or repaired. Further, since the rod 27 does not protrude from the work mounting surface and the work does not hit the rod 27, it is possible to prevent the work from being damaged when the work is mounted. Further, the cushioning belt 2 is placed on the mat belt 22.
3 is mounted, so that the flatness of the work mounting surface and the buffering property at the time of mounting the work can be improved.
The work can be more reliably prevented from being damaged.

The present invention is not limited to the configuration of the above-described embodiment, and various modifications are possible. For example, in the above embodiment, the mesh belt 2 has a three-layer structure of the strength belt 21, the mat belt 22, and the buffer belt 23, but has a two-layer structure of the strength belt 21 and the mat belt 22. It may be composed of Also in this case, since the connecting rod 27 does not protrude from the work mounting surface and the work does not hit the rod 27 when the work is mounted on the mat belt 22, the work may be damaged. Is prevented.

Further, in the above embodiment, the spiral 26 of the mat belt 22 through which the connecting rod 27 for connecting the strength belt 21 and the mat belt 22 is inserted is formed larger than the other spirals 22a and 22b. Although the shape is an inverted triangle, the shape is not necessarily limited to this shape, and any other shape may be used as long as the rod 27 can be inserted therethrough. Further, in the above-described embodiment, the buffer belt 23 has a configuration in which a plurality of metal filaments 29 alternately provided with irregularities in the length direction are connected in a lateral direction and connected. Any other configuration may be used as long as it can absorb the impact of time.

[0024]

As described above, according to the first aspect of the present invention, since both belts are connected by the connecting rods that penetrate both spiral portions of the strength mesh belt and the cushion mesh belt, the conventional belt is connected. Since the springs that fasten the mesh belt for strength and the mesh belt for cushion do not protrude from the work mounting surface, the work is prevented from being damaged when the work is mounted on the belt and transported. be able to. Also, by inserting or removing the connecting rod, it is possible to perform operations such as assembling, replacing, and repairing the belt, so that compared to the conventional one that fixes both belts with springs at multiple places, These operations can be performed in a short time.

According to the second aspect of the present invention, since the spiral through which the connecting rod of the cushion mesh belt is inserted is larger than other spirals, the mesh belt for cushion is inserted into the spiral of the strength belt. The spiral can be easily inserted and the connecting rod can be easily inserted, so that the two belts can be easily connected. Also, since the span length of the spirals through which the connecting rods are inserted is longer than that of the strength mesh belt, the cushion mesh belt has a structure that has elasticity with respect to the strength mesh belt, and the curvature of the transport belt The perimeter of the cushion mesh belt passing through the outer peripheral side at the corner portion becomes longer, but this corresponds to that, and the curvature of the belt can be absorbed.

According to the third aspect of the present invention, another thin mesh mesh belt for cushion is mounted on the mesh belt for cushion, so that the flatness of the work mounting surface of the transport belt is achieved. In addition, the cushioning property is enhanced, and the impact given to the work can be further buffered, so that the work is less likely to be damaged.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing a transfer device provided with a mesh belt according to an embodiment of the present invention.

FIG. 2A is a top view showing a strength belt in a state in which a mat belt is partially connected, and FIG. 2B is a side view of the same.

3A is a top view of the mat belt, and FIG. 3B is a side view of the same.

FIG. 4 is a perspective view showing a state in which a mat belt is mounted on a strength belt.

FIG. 5 (a) is a top view of the buffering belt, which is partially enlarged, and FIG. 5 (b) is an enlarged view of the same.

FIG. 6 is a schematic side view showing a state in which a buffer belt is mounted on a mat belt.

[Explanation of symbols]

1 Conveyor 2 Mesh Belt 21 Strength Belt (Strength Mesh Belt) 22 Mat Belt (Cushion Mesh Belt) 23 Buffer Belt (Another Cushion Mesh Belt) 26 Spiral (Spiral of Connecting Rod Insertion Portion) 27 Rod (connection rod)

Claims (3)

(57) [Claims] 1. A work transfer belt comprising a plurality of layers of mesh belts in which metal filaments are woven in a mesh shape, wherein a plurality of spiral metal filaments extending in a direction perpendicular to the direction of conveyance by the belt are provided. A mesh belt for strength configured by being connected in the same conveyance direction, and a plurality of spiral-shaped metal filaments having a smaller diameter than the mesh belt for strength extending in a direction orthogonal to the same conveyance direction are formed in the same conveyance direction. And a mesh belt for cushion configured by connecting the mesh belt for cushion, so that a part of the spiral of the mesh belt for cushion is inserted between the spirals of the mesh belt for strength. Mounted on the mesh belt, insert the connecting rod into the spirals inserted into each other. A belt for conveying a work using a mesh belt, wherein the mesh belt for cushion and the mesh belt for strength are connected by passing the mesh belt. 2. A spiral in a connecting rod insertion portion of the cushion mesh belt is formed to be larger than another spiral, and a span length of the connecting rod insertion portion spiral adjacent to the spiral in a belt conveying direction is the strength for the strength. The belt for transporting a workpiece using a mesh belt according to claim 1, wherein the mesh belt is configured to have a length greater than a span length adjacent to a spiral of a connecting rod insertion portion in a belt transport direction in the mesh belt. 3. The cushioning mesh belt according to claim 1, wherein another cushioning mesh belt made of a metal wire having a smaller diameter than the metal wire of the cushioning mesh belt is mounted on the cushioning mesh belt. A work transport belt using the mesh belt according to claim 1.