JPH0340487Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feed bar drive mechanism for an automatic bar material feeder, and more particularly to a drive mechanism for simultaneously driving a plurality of feed bars by a single drive device.

An automatic bar material feeder is used as a machine for sequentially feeding bar materials (raw materials) to an automatic bar material processing machine. Conventional automatic bar processing machines are single-axis (single-spindle) processing machines that process bar materials one by one. There are plans to develop a multi-spindle processing machine that is equipped with multiple spindles and can process multiple bar materials at the same time (at the time of filing this application, such a multi-spindle processing machine does not yet exist). do not have).

In this way, if the specifications of bar material processing machines become multi-spindle, the bar material feeding machines used in combination with multi-spindle processing machines will also be able to supply multiple bar materials. You need to be able to do it. In this case, it is possible to line up multiple conventional single-shaft bar material feeders to supply multiple bar materials, or to integrate multiple conventional single-shaft bar material feeders into a single feeder. Therefore, it is not impossible to supply a plurality of bar materials. However, with such a method, the installation area of the bar material feeder becomes extremely large, and the drive devices for each part are duplicated, making their control complicated, making the manufacturing cost of the bar material feeder extremely high. There are disadvantages such as getting used to it.

Therefore, the purpose of the present invention is to provide a feed bar drive mechanism for use in an automatic bar feeder that can simultaneously feed multiple bars. It is an object of the present invention to provide a feed bar drive mechanism that can reduce the installation area of a material feeder and reduce manufacturing costs.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

The automatic bar material feeder is actually long in shape so that it is suitable for feeding bar material, and its basic configuration and operation are well known, so we will explain them in detail. Explanation will be omitted.

In order to clarify the content of the present invention, the drawings only show the parts of the automatic bar feeder that are related to the feeding bar drive mechanism 10 attached to the frame 11. The automatic bar material feeder extends in the longitudinal direction perpendicular to the paper of the drawing.

A plurality of (two in the figure) guide rails 14 are attached to the frame 11 via a base member 12 by a known method. The guide rails 14 are provided parallel to each other along the longitudinal direction (direction perpendicular to the plane of the paper) of the automatic bar material feeder. The structure of each guide rail 14 itself may be considered to be similar to that used in a conventional single-shaft bar material automatic feeder. Each guide rail 14
A feed bar 16 is housed inside, which is slidable along the guide rail while gripping the bar material. The basic structure of each feeding bar 16 may be of a conventional type having a finger chuck at its tip for gripping the bar material.

Each feed bar 16 is integrally connected to each other by a connecting member 18. Connecting member 1
As shown in the figure, tie rods or tie plates of a fixed length matching the spacing between the two feed bars 16 can be used for the connecting member 18, but the connecting member 18 can be made into a telescopic structure, for example, and the two feed bars 16 can be connected to each other.
It is also possible to make the interval variable. The spacing between the feed bars 16 is determined to be equal to the spindle pitch of the automatic bar material processing machine used, but in order to enable the automatic bar material feeding machine to be used in accordance with the specifications of the automatic bar material processing machine, it is necessary to It is preferable to use screws 13 or the like to attach the base member 12 that supports the guide rail 14 to the frame 11 in a positionable manner.

A known connecting piece 22 that is attached between the links 20 of the chain is fixed to the connecting member 18, so that the movement of the chain can be directly transmitted to the connecting member 18.

The chain is stretched between a pair of sprockets 24 provided near both ends of the automatic bar material feeder, and is connected to the shaft 2 of either sprocket 24.
6 is driven in a known manner by a suitable motor (not shown). A member indicated by the number 28 is a cover for covering the chain and the connecting piece 22.

As described above, according to the present invention, the two feed bars 16 are connected to a single chain drive device (a device consisting of a chain, a sprocket, and a drive motor).
Since the machine is driven by can be achieved.

[Brief explanation of the drawing]

The drawing is a cross-sectional view of an automatic bar material feeder.
In particular, it shows the feed bar drive mechanism of the present invention. 11... Frame, 12... Base member, 14...
Guide rail, 16... feed bar, 8... connecting member, 20... chain link, 22... connecting piece, 24... sprocket.

Claims (1)

[Claims for Utility Model Registration] (1) A plurality of guide rails provided parallel to each other along the longitudinal direction of an automatic bar material feeder in order to accommodate and hold bar materials; a plurality of feed bars that are provided and are slidable along guide rails while gripping bar materials; a connecting member that integrally connects the feed bars to each other; and a longitudinal direction of an automatic bar material feeder. a single chain drive stretched to travel along the chain, the connecting member and the chain of the chain drive being interconnected, and the plurality of infeed bars running along the single chain. A feed bar drive mechanism for an automatic bar material feeder, characterized in that the feed bar drive mechanism is configured to be simultaneously driven by a drive device. (2) The scope of the utility model registration claim characterized in that the chain drive device comprises a pair of sprockets, a chain stretched between the sprockets, and a motor that drives one of the sprockets. A feeding bar drive mechanism of the automatic bar material feeder described in paragraph (1).