JPH01115502A - Multistage material rack device for bar supplier - Google Patents

Abstract

PURPOSE:To enable the continuation of unmanned operation for a long time by stocking many bars in the multistage material rack devices of a bar supplier for feeding the bars to a machine such as a lathe, and securely supplying them in sequence to a bar supporting portion. CONSTITUTION:Bars (m) are mounted in parallel together on conveyor belts 13 disposed in respective multistage material rack devices 10A, 10B, 10C. When the bars (m) are supplied to a guide pipe 2, the operating rod of a cylinder 18 is withdrawn, while a link 9 and an arm 8 are located in positions shown by solid lines, respectively, and a cover 7 is in an opened state. And thereat, the bars (m) mounted on the conveyor belt 13 in parallel together partitioned by partitioners 15 are conveyed in the direction of an arrow A following the traveling of the conveyor belt 13. And then, the bars (m) are guided with guide surfaces 4a, 4b and are pushed to the side walls of the partitioners 15 so as to be conveyed toward the guide pipe 2. And thereat, the bar (m) on the belt 13 of the rack device 10C is supplied into the guide pipe 2. Thereafter, the link 9 and the arm 8 are swung by the effect of the cylinder 18 so that the bars (m) are conveyed to a machine.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a multi-stage material shelf device in a bar feeder,
In particular, the present invention relates to a multi-stage material shelf device in a bar feeder that can store a large number of bars and supply them one by one to a bar support section.

[Conventional technology]

A bar feeder continuously feeds an elongated bar to a processing machine such as a lathe, and also rotatably supports the bar while the processing machine is in operation. A bar feeder is usually equipped with a material shelf device, and is configured to stock a predetermined number of bars and supply them one by one to a bar support section that rotatably supports the bars.

As shown in FIG. 5, the conventional material shelf device includes an inclined material shelf 30 that stores a predetermined number of bars, and a bar support that takes out the bars from this material shelf 30 and rotatably supports the bars directly below. A plurality of material shelves 30 and carriers 32 are provided at predetermined intervals along the feeder. The materials stocked in parallel on the material shelf 30 are engaged with the clearing material 32a of the carrier 32 and are supplied to the guide pipe 31 one by one by rotation of the carrier 32.

The grooves 32a are available in various sizes depending on the outer diameter of the bar.

[Problem that the invention seeks to solve]

However, in the conventional carrier consisting of a rotating disk, the bar to be supplied to the bar support section is accommodated in the groove 32a, rotated and transferred, and dropped into the guide pipe 31 at the lowest position. If there is even a slight bend in the material,
If there is some unevenness in the outer diameter of the bar, there is a problem that the bar may get stuck in the tube 32a and may not fall down even when it reaches the guide pipe 31 and cannot be fed. . In addition, there is a problem in that only a part of the bar (for example, the front or rear part) falls off, and the other part remains in the carrier, making it impossible to feed it to the guide pipe.

The present invention was devised in view of the above-mentioned circumstances, and its purpose is to enable long-term unmanned operation by stocking a large number of bars, and to An object of the present invention is to provide a multi-stage material shelf device in a bar feeder that can reliably feed material to a material support section.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention is provided in a bar feeder that supplies a bar to a processing machine and rotatably supports the bar, and is provided with a rotary support for the bar supplied to the bar feeder. In a material shelving device that supplies bars one by one to a bar support section for the purpose of A multi-stage material shelving device is formed by forming a multi-stage material shelving device by providing this single-stage material shelving device in a plurality of stages in the vertical direction, and the material shelving unit is arranged parallel to the bar support section. The endless conveyor belt has a plurality of bars placed in parallel and is disposed perpendicular to the bar supporter for conveying the bars to the bar supporter. This is characterized by having partitions provided at intervals so that the bar members arranged in parallel do not come into contact with each other.

[Effect]

The present invention uses the above means to stock a large number of bars on the conveyor belt of each material shelf unit in a material shelving device configured in multiple stages in the vertical direction, and to transfer the bars to the bar support section by running the conveyor belt. Can supply one bar at a time. As a result, a large number of bars can be stocked, making long-term unmanned operation possible, and the stocked bars can be continuously and reliably supplied to the bar support section.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a multi-stage material shelf device in a bar feeder according to the present invention will be described below with reference to FIGS. 1 to 4.

Figure 1 is a plan view of the bar feeder M, and Figure 2 is the bar feeder RM.
This shows a side view of. In FIGS. 1 and 2, reference numeral 1 denotes a main frame, and a guide pipe 2 constituting a bar support portion that rotatably supports a bar is fixed to this main frame 1.

A multi-stage material shelving device 3 for supplying bars one by one to the guide pipe 2 is arranged so that a single-stage material shelving device 10 provided adjacent to the guide pipe 2 is placed up and down, as shown in FIG. It is configured by providing multiple stages in the direction. In the embodiment shown in FIG. 1, the material shelf device 10 includes an upper stage 10A, a middle stage 10B, and
It consists of three stages, the lower stage 10C. And each material shelf device 10
A, IOB, and IOC are equipped with a plurality of material shelf units U provided at predetermined intervals along the bar feeder, and these material shelf units U are driven as shown in a detailed diagram in FIG. Pulley 11, driven pulley 12, both pulleys 11
, 12 and an endless conveyor belt 13 wound therebetween.

The drive pulley 11 of each material shelf unit U is fixed to a drive shaft 5 rotatably supported by a support frame 4 on the main frame 1, and is driven by a take-out motor 6 provided at the front of the bar feeder. The drive shaft 5 (here, the drive shaft in the lower material shelf device 10C) is rotationally driven, and each drive pulley 11 is rotated. That is, the drive shafts 5, 5 in the middle material shelving device 10A and IOB are connected by a chain or the like to the drive shaft 5 of the lower material shelving device 10C, which is directly connected to the take-out motor 6. 5
．． 5 rotates as one body. Further, the driven pulley 12 is rotatably supported at the end of the support frame 4. The endless conveyor belt 13 has a bar mounting surface 14 on its outer surface for mounting a plurality of bars in parallel parallel to the guide pipe 2, and a bar mounting surface 14 at a predetermined distance from the bar mounting surface 14. The timing belt has partition portions 15 protruding from each bar for partitioning adjacent bars, and has teeth 16 at equal intervals on its inner surface.

A guide plate 17 is provided to support and guide the upper and lower inner surfaces of the endless conveyor belt 13, and this guide plate 17 prevents the conveyor belt 13 on which the bars are placed from hanging down.

Further, as shown in FIG. 3, an arm 8 having a lid 7 at the tip is pivotally supported on the support frame 4, and this arm 8 is connected to an air cylinder 18 via a link 9. When the air cylinder 18 is actuated, the arm 8 swings, and the lid 7 closes the upper surface of the guide pipe 2 so as to be openable and closable, so that the bar m does not jump out from the guide pipe 2. Note that the lid body 7 forms a continuous body along the guide pipe 2, as shown in FIG.

On the other hand, opposite to the arc-shaped conveyance section and the lower straight conveyance section of each conveyor belt 13 in each material shelf device 10A, IOB, and toc, the support frame 4 is provided with guides for guiding the bars as shown in FIG. Surface 4a.

4b is formed, and these guide surfaces 4a, 4b are a circular guide surface 4a on the left side in the figure and a linear guide surface 4b following this.

Next, the operation of the multi-stage material shelf device in the bar feeder according to the present invention configured as described above will be explained.

First, the multi-stage material shelf devices 10A and IOB.

The bars are placed in parallel on the conveyor belt 13 at 10C.

When the bar m is supplied to the guide pipe 2, the operating rod of the cylinder 18 is retracted, the link 9 and the arm 8 are in the solid line position, and the lid 7 is in an open state. Then, the bars m arranged in parallel on the conveyor belt 13 and partitioned by the partitions 15 are conveyed in the direction of arrow A as the conveyor belt 13 runs.

When the take-out motor 6 is rotationally driven, the drive shaft 5 is rotated in the direction of the arrow, and the drive pulley 11 is rotated, so that the conveyor belt 13 travels.
consists of a timing belt with equally spaced teeth 16 on its inner surface, which mesh with teeth carved on the outer periphery of the drive pulley 11 to enable forced, non-slip, constant speed running. Then, as the conveyor belt 13 runs, the bar m is
When it is on the upper part of the conveyor belt 13, it is carried on the bar mounting surface 14, but when it comes to the arcuate part and the lower part, it is carried on the guide surface 4.
a, 4b, and is pushed by the side wall of the partition portion 15 and transported in the direction of the guide pipe 2. Then, the bar m on the conveyor belt 13 in the lowermost material shelf device 10C is supplied by being dropped into the guide vibe 2 from the end of the guide surface 4b, and the conveyor belt 13 is stopped. Thereafter, the operating rod of the cylinder 18 protrudes, the link 9 and the arm 8 swing, the lid 7 closes the upper surface of the guide pipe 2 as shown by the imaginary line in FIG.
Prevent it from jumping outside. The bar m is then conveyed to a processing machine by a feed pipe (not shown).

On the other hand, the middle material shelf device 10B and the upper material shelf device i
The conveyor belt 13 in fl OA is also conveyed at the same time, and the bars m in each material shelf device 10B and IOC are moved to the guide surface 4.
The bar m in the middle material shelf device 10B is guided by the guide surfaces 4b and 4b and is pushed by the side wall of the partition section 15.
Transom guide surface 4 between the end of the middle lower tier 10B and the IOC
The bar m, which is guided by Ci and supplied onto the upper linear conveying section of the conveyor belt 13 of the lower material shelf device 10C, and which is located in the upper material shelf device 10A, moves from the end of the guide surface 4b to the middle layer 10A, IOB. It is guided by the transom guide surface 4 C2 located in between and is supplied onto the upper linear conveyance section of the conveyor belt 13 of the middle material shelf device 10B.

By continuously performing the above operations, the bars m stocked on the conveyor belt in the material shelving device at each stage are
It is possible to reliably feed one bar at a time to the bar support section. Then, the bars can be sequentially replenished from the upper material shelf apparatus to the lower material shelf apparatus. In the embodiment, a three-tiered material shelving device has been described, but according to the present invention, a two-tiered material shelving device may be used, or a multi-tiered material shelving device including four or more shelves can be provided.

[Effects of the Invention] As is clear from the description of the embodiments, according to the present invention, a large number of bars are stocked in a multi-stage material shelf device,
This stocked bar stock can be reliably supplied to the bar support section one after another, making long-term unmanned operation possible.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a bar feeder equipped with a multi-stage material shelf device in a bar feeder according to the present invention, FIG. 2 is a side view of the same bar feeder, and FIG. 3 is a multi-stage material shelf device according to the present invention. FIG. 4 is a plan view of the same material shelving device, and FIG. 5 is a side view of a conventional material shelving device. 1... Main frame, 2... Guide pipe, 3...
・・Multi-stage material shelf device, 4・・Support frame, 5・・
・Drive shaft, 6... Take-out motor, 7... Lid body, 8...
・Arm, 9...Link, IOA, IOB, IOC・
...Material shelf device, U...Material shelf unit, 11...
Drive pulley, 12... Driven pulley, 13... Conveyor belt, 14... Bar mounting surface, 15... Partition portion, 1
7...Guide plate, 18...Air cylinder. Applicant's agent Yasushi Ishikawa Figure 5

Claims (1)

[Scope of Claims] 1. A rod provided in a bar feeder that supplies a bar to a processing machine and rotatably supports the bar, and that rotatably supports the bar supplied to the bar feeder. In a material shelf device that supplies bars one by one to a material support section, a plurality of material shelf units are provided adjacent to the bar support section and spaced apart along the bar feeder to form a single stage material shelf. This single-stage material shelf device is provided in multiple stages in the vertical direction to constitute a multi-stage material shelf device, and the material shelf unit is configured to store a plurality of bars in parallel with the bar support portion. The rods are placed in parallel, and an endless conveyor belt is disposed perpendicular to the bar supporter for conveying the bars to the bar supporter. A multi-stage material shelf device for a bar feeder, characterized by having partitions provided at intervals so that the bars do not come into contact with each other. 2. The multi-stage bar feeder according to claim 1, wherein the bars placed on the upper material shelf device are sequentially conveyed to the lower material shelf device by the conveyor belt. material shelving equipment. 3. A multi-stage material shelf device in a bar feeder according to claim 1, wherein the endless conveyor belt is a timing belt. 4. The bar supply according to claim 1, wherein the material shelf unit has a guide surface for conveying the bar to the bar support part in cooperation with an endless conveyor belt. A multi-stage material shelving device in a machine.