JPH02175507A - Roll conveyor for carrying - Google Patents

Abstract

PURPOSE:To prevent the wear of an attachment, a plate, a pin, and a roll of a driving chain by providing a supporting roll, whose diameter is smaller than that of a carrying roll, at one or two places on a carrying roll shaft and providing a supporting rail underneath the supporting roll. CONSTITUTION:A supporting roll, whose diameter is smaller than that of a conveyor roll 1, is placed at one or two places on a shaft of a conveyor roll 1, while a supporting rail 8 is placed underneath the supporting roll 7. In addition, a bearing is inserted between the supporting roll 7 and the shaft of the carrying roll 1 and fixed by a retaining ring. The reason why the diameter of the supporting roll 7 is made smaller than that of the carrying roll 1 is that, when an article to be carried is accumulated on the roll 1, although the carrying roll 1 moves under the article, rotating in the reverse direction, the supporting roll 7 moves in the same direction as that of a roll 4 of a driving chain. With this contrivance, the load of the article to be carried is not applied to the driving chain, and consequently the wear of an attachment 2, a ring plate 3, a pin 5, and a roll 4 can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transport roll conveyor capable of transporting and accumulating heavy objects. More specifically, the present invention relates to a transport roll conveyor in which support rolls 7 and support rails 8 are provided to firmly support the transport rolls.

[Prior Art] A relatively large conveyance object is conveyed and carried by a line conveyor, and a freely rotatable conveyance roll 1 is attached thereon. The drive roll 4 is supported by a lower rail 6 and rotates while traveling. Attachment 2 is transport roll 1
is supported.

The transport roll 1 has a built-in bearing and can rotate freely. The drive chain is driven by a sprocket 10 and runs on a rail 6, and a conveyor roll 1 is attached to the rail 6.
also run at the same time.

When the conveyed object is placed on the conveyor roll 1, the conveyor roll 1
continues to move without rotating.

If the conveyed object is stopped by a stopper, etc., the conveyance roll 1
rotates in the opposite direction to the roll 4 of the drive chain and moves under the conveyed object.

If there is a subsequent conveyed object, it will be stopped by the stopped preceding conveyed object and stop moving. That is, when one of the objects to be conveyed that is carried at intervals is stopped by a stopper or the like, the following conveyed object is stopped on the conveyor while closely contacting the preceding conveyed object.

When the collar is removed, it starts moving again.

This action is the principle that serves the dual roles of conveyance and accumulation.

Of these devices, the transport roll 1 is attached to the drive chain at both ends by attachments 2, so the load of the transported object is entirely transferred to the drive chain's actuator l-2, link plays 1 and 3, pins 5, and roll 4. It depends on.

[Problems to be Solved by the Invention] Therefore, when the weight of the conveyed object is large, the drive chain cannot withstand the load, resulting in deformation of the attachment 2, wear between the plate 3 and pin 5, and fraying of the roll 4. It was extremely impractical.

The present invention aims to solve this problem.

[Means for solving the problem] The reason why the life of the drive chain is short is that the load of the conveyed object is directly applied to the drive chain. Therefore, one or two support rolls 7 (hereinafter referred to as small rolls) having a diameter smaller than that of the transport roll 1 are provided on the axis of the transport roll 1, and a support rail 8 is provided below the support roll 7. It is a roll conveyor for

[Operation] In this case, the diameter of the small roll 7 needs to be smaller than the diameter of the conveyance roll 1. This is because when the conveyed object is accumulated, the conveying roll 1 moves under the conveyed object while rotating in the opposite direction, but the small roll 7 rotates in the same direction as the roll 4 of the drive chain. have to move.

[Example] Embodiments of the present invention will be described based on the drawings.

FIG. 1 shows an example in which small rolls 7 are attached to both ends of a transport roll 1-.

The transport roll 1 is a commonly used roll, but the shaft needs to be long enough to accommodate the small rolls 7.

A gap of several mm is required between the end faces of the small roll 7 and the attachment 2, and between the end faces of the small roll 7 and the transport roll 1 so that they do not come into contact with each other.

The width of the small roll 7 is selected depending on the weight of the object to be conveyed, but is usually several centimeters.

A bearing is inserted between the small roll 7 and the shaft and fixed with a retaining ring. Bearings are selected according to the weight of the transported object.

The support rail 8 that receives the small roll 7 may have the same width as the small roll 7.

Although FIG. 2 shows an example in which the small rolls 7 are attached to both sides of the transport roll 1, FIG. 4 shows an example in which the small rolls 7 are installed in the center of the transport roll.

As shown in FIG. 3, it is also effective to attach flanges to both ends of the small roll 7 to provide a guiding effect. The pillars supporting the support rails 8 need to be able to withstand the weight of the objects being transported.

If the support rail 8 bends due to the load, the conveyed object will also be applied to the drive chain, and the small rolls 7 will not be able to fully demonstrate their effectiveness.

[Effect of the invention] In the case of the conventional method, the life of the drive chain was only a few months, but in the method according to the present invention, the load of the conveyed object is applied to the drive chain, so the wear of the attachment 2 plate 3 and the roll 4 is almost negligible. do not have.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment in which small rolls are provided at both ends of the transport roll of the present invention. FIG. 2 is a front view showing another embodiment in which a small roll is provided at the center of the transport roll. FIG. 3 is a front view showing the shape of the small roll. FIG. 4 is a side view of the conveyor. FIG. 5 is an installation front view of a conventional conveyor roll. 1... Conveyance roll, 2... Attachment, 3...
plate, 4 rolls,

Claims (1)

[Claims] In a transport roll conveyor that can transport and accumulate heavy objects by connecting both shafts of the transport roll to a drive chain using attachments, a support roll with a diameter smaller than the diameter of transport roll 1 is placed on the axis of transport roll 1. 7 is provided at one or two locations, and a support rail 8 is provided below the support roll 7.