JP2007106561A - Article conveyance device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rectangular parallelopiped article conveyance device capable of moving a load immediately when conveyance is started, preventing the load from coming off a conveyance track, and settling and suppressing article conveyance time within a predetermined time (cycle time). <P>SOLUTION: This rectangular parallelopiped article conveyance device conveys a substantially rectangular parallelopiped article having a first guide face along the direction of conveyance on a side face and a second recessed guide face being substantially parallel with the first guide face on a bottom face onto the downstream side at fixed speed. This article conveyance device is provided with a plurality of conveyance rollers, a first guide for guiding the first guide face, and a second guide for guiding the second guide face. The second guide is rotatably mounted on the conveyance roller. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a rectangular parallelepiped article conveyance device. More specifically, a substantially rectangular parallelepiped article having a first guide surface along the transport direction on the side surface and a concave second guide surface substantially parallel to the first guide surface on the bottom surface is transported downstream at a constant speed. The present invention relates to a rectangular parallelepiped article conveyance device.

  The prior art is shown in FIGS. 4 to 6 (referred to as prior art 1). 4 to 6, the heater core 3 that is a substantially rectangular parallelepiped article having a first guide surface 3 a along the conveyance direction on the side surface and a concave second guide surface 3 b substantially parallel to the first guide surface on the bottom surface. A rectangular parallelepiped article conveying apparatus 10 that conveys the sheet at a constant speed downstream is shown. The transport device 10 includes a plurality of transport rollers 4, a first guide 1 that guides the first guide surface, and a second guide 11 that guides the second guide surface. The two guides 11 are fixed to the first frame 5 and the second frame 6 of the transport device 10. The transport roller 4 includes a bearing 7 and is rotatably supported by a bearing receiver 8.

  In addition, although there is a technique disclosed in Patent Document 1 as a means for guiding an article in an apparatus for conveying the article, it is not a technique for solving the problems related to the present application.

Japanese Utility Model Publication No. 6-1326

  However, in the prior art 1, when the article is conveyed downstream, the contact resistance (friction) is generated between the first guide surface 3a and the first guide 1 and between the second guide surface 3b and the second guide 11 of the article. ) Was large and had the following problems. The first problem is that the article does not start moving or starts moving after the start of conveyance. This is because the starting frictional resistance is much larger than the moving frictional resistance. Secondly, when the vertical dimension of the surface of the second guide that faces the second guide surface 11 is relatively small, the balance of the contact resistance between the first guide surface side and the second guide surface side may be lost. This is a problem that the article rides on the first guide or the second guide and the article comes off the conveyance track.

  As a result, it has often occurred that the actual article transport time exceeds a predetermined time (cycle time), which hinders productivity.

  The present invention has been made in view of the above problems, and an object of the present invention is to immediately start the movement of the load at the start of the conveyance, and to prevent the load from coming off the conveyance track. The article conveyance time is a predetermined time (cycle time). The object is to provide a rectangular parallelepiped article transport device that fits inside.

  The present invention provides, as means for solving the above-described problems, a rectangular parallelepiped article conveying device according to each claim.

  According to the first aspect of the present invention, since the second guide is rotatably mounted on the transport roller, the contact resistance between the second guide surface of the article and the second guide is significantly reduced, and the above-mentioned The first and second problems are eliminated, and the article conveyance time is within a predetermined time (cycle time).

  According to the second aspect of the invention, since the second guide includes the bearing between the conveyance roller, the degree of freedom of rotation of the second guide is improved and the second guide surface of the article is between the second guide and the second guide. The contact resistance is further reduced. For this reason, the above-described problems are less likely to occur.

  According to the third aspect of the present invention, since the surface of the second guide that faces the second guide surface is a circular surface, the contactable area between the second guide and the second guide surface is minimized. For this reason, the contact resistance between the 2nd guide surface of an article and the 2nd guide becomes still smaller. For this reason, the above-described problems are even less likely to occur.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of a rectangular parallelepiped article conveying apparatus according to the present invention. FIG. 2 is a view as seen from the direction A in FIG. FIG. 3 is an enlarged view of a portion B in FIG. FIG. 4 is a schematic view of a rectangular parallelepiped article transport device according to Prior Art 1. FIG. 5 is a view as seen from the direction A in FIG. FIG. 6 is a partially enlarged view of FIG.

  As shown in FIG. 1, 3 is a heater core which is a rectangular parallelepiped article, and 20 is a roller conveyor which is a rectangular parallelepiped article conveying apparatus. In the roller conveyor 20, the heater core 3 is transported along the direction of arrow C by the rotation of the transport roller 4. The heater core 3 is the same as that shown in FIGS. 4 to 6, and has a first guide surface 3a along the conveyance direction C on the side surface and a concave second guide substantially parallel to the first guide surface on the bottom surface. A substantially rectangular parallelepiped article having a surface 3b.

  The roller conveyor 20 is a rectangular parallelepiped article conveying apparatus that conveys the substantially rectangular parallelepiped article 3 at a constant speed downstream, and includes a plurality of conveying rollers 4, a first guide 1 that guides the first guide surface 3a, and the first guide And a second guide 2 for guiding the guide surface 3b. The first guide 1 is fixed to the roller conveyor 20, and the second guide 2 is rotatably attached to the transport roller 4 (details are shown in FIG. 2).

  The conveyor frame 5 of the roller conveyor 20 is erected on the factory floor, and a large number of rollers 4 are rotatably arranged. These rollers are rotationally driven by a drive mechanism (not shown), whereby the load (rectangular article) on the roller conveyor 20 is conveyed, and finally the load is conveyed to a predetermined processing station.

  As shown in FIG. 2, the 2nd guide 2 is formed in the substantially cylindrical shape, and is rotatably mounted to the roller 4 via the bearing 2b. Since the second guide 2 is rotatably mounted on the conveying roller 4, the contact resistance between the second guide surface 3b of the article and the second guide 2 is significantly reduced, and the first and first of the prior art 1 are reduced. The second problem is solved, and the article conveyance time is within a predetermined time (cycle time). And since a 2nd guide is provided with a bearing between a conveyance roller, the freedom degree of a 2nd guide improves and the contact resistance between the 2nd guide surface of an article | item and a 2nd guide becomes still smaller. For this reason, the above-described problems are less likely to occur.

  And the 2nd guide 2 has the conical guide surface 2a facing the said 2nd guide surface 3b of the articles | goods in the state attached to the roller 4. FIG. As shown in FIG. 3, the guide surface 2 a is formed so as to be inclined by a predetermined angle (for example, 15 °) with respect to the outer peripheral surface of the roller 4, and engages with the side surface of the load conveyed on the roller 4. Regulates movement in the width direction of the load. Since the surface 2a facing the second guide surface 3b of the second guide 2 is a circular surface, the contactable area between the second guide and the second guide surface is minimized. For this reason, the contact resistance between the 2nd guide surface of an article and the 2nd guide becomes still smaller. For this reason, the above-described problems are even less likely to occur.

  The distance between the guide members 1 and 2 is slightly wider than the width of the corresponding portion of the load to be transported, and the movement of the load being transported is restricted within the predetermined range by the guide members 1 and 2.

  Next, the function and effect of the second guide 2 will be described. When there is no load in the vicinity, the second guide 2 is synchronized with the roller 4 and rotates together with the roller 4 and rotates in the same direction. Synchronizes with the transfer speed. As a result, the second guide 2 has a rotational speed different from the rotational speed of the roller 4. Since the second guide 2 is rotatably mounted on the roller 4, the different rotation speeds are possible.

  As described above, the resistance in the traveling direction of the load is decreased, and the conveyance speed of the load can be increased as compared with the prior art. Further, as a matter of course, a rectangular parallelepiped article conveying apparatus that starts moving immediately at the start of conveyance and does not have a problem of deviating from the conveyance track and has an article conveyance time within a predetermined time (cycle time) can be realized.

It is a general-view figure of the rectangular parallelepiped article conveyance device concerning the present invention. It is the figure seen from the A direction in FIG. It is an enlarged view of the B section in FIG. It is a general-view figure of the rectangular parallelepiped article conveyance apparatus of prior art 1. It is the figure seen from the A direction in FIG. It is the elements on larger scale in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st guide 2 2nd guide concerning this invention 3 Cuboid article 4 Conveyance roller 5 1st frame 6 2nd frame 7 Bearing 8 Bearing receiver 10 Conventional rectangular parallelepiped article conveyance apparatus 11 Conventional 2nd guide 20 Cuboid concerning this invention Article conveying device

Claims (3)

A substantially rectangular parallelepiped article having a first guide surface (3a) along the conveying direction (C) on the side surface and a concave second guide surface (3b) substantially parallel to the first guide surface (3a) on the bottom surface ( 3) a rectangular parallelepiped article transporting device (20) for transporting downstream at a constant speed,
A plurality of transport rollers (4);
A first guide (1) for guiding the first guide surface (3a);
A second guide (2) for guiding the second guide surface (3b),
The rectangular parallelepiped article conveying apparatus (20), wherein the second guide (2) is rotatably attached to the conveying roller (4).   The rectangular parallelepiped article conveying apparatus according to claim 1, wherein the second guide (2) includes a bearing (2b) between the second guide (2) and the conveying roller (4).   The rectangular parallelepiped article conveying device according to claim 1 or 2, wherein the second guide (2) has a vertical surface (2a) facing the second guide surface (3b).

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