JPH0444487Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a conveyor device for conveying a workpiece, and more particularly to a conveyor device having an ascending path capable of upward conveyance in the vertical direction.

(Prior Art) A conveyor device having a vertical ascending path is required, for example, when a workpiece from which sprues and overflow have been removed after aluminum casting is transported from downstairs to an upstairs finishing shop. Figure 3 shows a conventional vertically movable conveyor system of this type; (a) a bucket elevator type in which buckets are attached at regular intervals to an endless belt conveyor arranged vertically, and objects to be transported are placed in the buckets; , (b) An arm elevator type in which a protruding arm is installed on the sloping conveyor path and the conveyed object is placed on this arm. (c) The work is placed on a loading platform that rises vertically from the horizontal path and is moved to the horizontal path on the floor. (d) Tray elevator type, which has a tray placed between parallel endless chains to receive the workpiece, and (e) Single chain type, which has a tray placed on one chain to place the workpiece. .

(Problem that the invention attempts to solve) However, in any of the above conventional methods,
Since there is a means for loading the workpiece, such as a bucket or an arm, it is necessary to synchronize the approach of the workpiece and the standby position of the loading means.
Furthermore, because there is a space limitation on the means for mounting the workpieces, such as a bucket, there are restrictions on the shape and size of the workpieces that can be transported. Further, depending on the mounting direction of the workpiece, there are cases where the workpiece cannot be placed on the mounting means, and the workpiece must be mounted only in a predetermined constant posture. Furthermore, there is an inconvenience in that the surface of the workpiece is easily damaged by mounting means such as a bucket.

Therefore, the object of this invention is to provide a conveyor device that can vertically convey a workpiece regardless of the shape and size of the workpiece and the mounting posture of the workpiece, and that does not damage the workpiece during conveyance.

(Means and actions for solving the problem) In order to achieve this purpose, according to this invention,
A first conveyor 1 that conveys a workpiece 2 from a first horizontal path 11 via an ascending path 12 to a second horizontal path 13 located at a higher position than the first horizontal path 11.
and a second conveyor 6 which is provided opposite to the ascending path 12 of the first conveyor 1 and runs in synchronization with the first conveyor 1. In the conveyor device in which the workpiece holding member 10 is arranged, the workpiece holding member 10 is made into a bag shape by folding the middle part of one elastic sheet, and the overlapping parts of both folded ends are held and fixed by bridge bars 9. did.

According to such a configuration, the workpiece can be elastically held and conveyed between the first conveyor and the second conveyor.

Further, by constructing the workpiece holding member 10 into a bag shape from one sheet, there are many blank spaces, and the allowable value for the shape of the workpiece, that is, the applicability to the workpiece can be increased.

Further, since the workpiece is held only by elastic deformation of the workpiece holding member 10 side and does not involve belt deformation or the like on the first conveyor side, the durability of the first conveyor side is improved.

Furthermore, by clamping and fixing the overlapping portions of both folded ends of the elastic sheet with the bridge bar 9, the elastic sheet can be easily replaced.

(Embodiments of the invention) Examples of the invention will be described below with reference to the accompanying drawings. Note that the same reference numerals in each figure indicate similar objects.

FIG. 1 shows a conveyor device according to an embodiment of this invention. In the figure, 1 is a main conveyor consisting of a horizontal passage 11 on the lower floor, a vertical passage 12, and a horizontal passage 13 on the upper floor.
3 and the vertical path 12 are constructed as part of a series of belt conveyors. This main conveyor 1 has an outbound path and a return path, and the workpiece 2 moves on this outbound path. Further, this outward path is guided along guide rollers 3, and especially in the vertical path 12, the outward path portion of the conveyor belt is biased outward by a tension mechanism 4. This tension mechanism 4 has a plurality of L-shaped arms 41 fixed to a support arm 40 fixed to, for example, a wall of a processing facility. That is, the corner portion of the L-shaped arm 41 is rotatably fixed to the frame 40, and the arm 41 is rotatably fixed to the frame 40.
A tension spring 42 is attached to one end of the frame 40.
A roller 43 is rotatably fixed to the other end of the arm 41. Therefore, the roller 43 of the L-shaped arm 41 is pressed toward the conveyor by the action of the spring 42, applying tension to the conveyor belt.

A sub-conveyor 6 consisting of an endless chain is arranged at a predetermined interval D so as to face the vertical path 12 of the main conveyor 1. This sub-conveyor 6 consists of two chains 60 suspended in parallel with a constant width w, and both ends of the chains 60 are wound around a drive gear 7-7. This gear 7 is located near the end and start end of each horizontal path 11, 13, respectively. The sub-conveyor 6 is moved so that the sub-conveyor 6 is approximately parallel to the vertical path 12 of the main conveyor 1.
A guide gear 8-8 is provided in the middle. Also,
As can be seen from FIGS. 2a and 2b, a bridge bar 9 is fixed at a constant interval P between chains 60 arranged parallel to each other, and an elastic member 10 is fixed to this bridge bar 9. Elastic member 1
0 is a bridge bar 9 by folding a single rubber sheet.
The elastic members 10 are clamped and fixed, and each elastic member 10 is sized so as to overlap one after another.

With such a configuration, the workpiece 2 that has progressed on the horizontal path 11 of the main conveyor 1 can be moved between the tensioned vertical path of the main conveyor 1 and the conveyor 6.
It can be raised from the horizontal passage 11 on the floor to the horizontal passage 13 on the upper floor. Therefore, the distance D between the main conveyor 1 and the sub-conveyor 6, the pitch P in which the elastic member 10 is arranged, and the size of the elastic member 10 are determined so that the necessary work 2 can be held. Further, since the workpiece 2 rises while being sandwiched between the tensioned vertical path of the main conveyor 1 and the elastic member 10 of the sub-conveyor 6, the loading posture of the workpiece 2 is changed as shown in FIG. Transport is possible in any way.

In the above embodiments, a conveyor having a vertical ascending path has been described, but a similar configuration can be adopted for a conveyor having an inclined ascending path.

(Effects of the invention) According to this invention, by lifting the work while holding it between the main conveyor and the sub-conveyor as described above, the work can be lifted regardless of the shape, size, and loading posture of the work. It is possible to obtain a conveyor device that can convey the work and does not damage the work because the work is held between elastic members.

Furthermore, even if the workpiece to be handled is a casting material, for example, where burrs remain around the workpiece and residual heat remains, and the workpiece holding member is likely to wear out, the elastic sheets can be easily replaced one by one. Therefore, the repair is fast. Moreover, no burden is placed on the first conveyor side, and durability can be improved.

[Brief explanation of the drawing]

FIG. 1 is a side view of a conveyor device according to an embodiment of this invention, FIG. 2 is a perspective view a and an explanatory view b of the main parts of the conveyor device according to an embodiment of this invention, in the vicinity of the vertical path 12, and FIG. FIG. 2 is an explanatory diagram of a conventional example. In the drawing, 1 is a first conveyor, 2 is a workpiece, 3 is a guide roller, 4 is a tension device, 6
is a second conveyor, 7 is a drive gear, 8 is a guide gear, 9 is a bridge bar, 11 and 13 are horizontal paths, 1
2 is an ascending road, and 60 is an endless chain.

Claims (1)

[Scope of utility model registration request] a first conveyor that conveys a workpiece from a first horizontal path via an upward path to a second horizontal path located at a higher position than the first horizontal path; In a conveyor device comprising a second conveyor which is provided at the same time and runs in synchronization with the first conveyor, and workpiece holding members are disposed on the second conveyor at predetermined intervals, the workpiece holding members include: A conveyor device characterized in that the middle part of one elastic sheet is folded back to form a bag shape, and the overlapping parts at both ends of the folded back are clamped and fixed by bridge bars.