JPS6067002A - Automatic bar feeder - Google Patents

Abstract

PURPOSE:To open a stock tube free as well as to aim at the simplification of an auxiliary device in structure by means of a single driving source which rotates a driving plate. CONSTITUTION:Movement in an auxiliary guide 42 and open operation in a stock tube 24 are performed by a single driving source used for rotating a driving plate which takes a bar work out of a stock rack 10 by one. In addition, in order to operate a magazine 14 in an orderly manner, plural rollers are installed in the circumferential part of a stock reel of the magazine 14, while such a method that one side of halved stock tubes 24 is made to act on a direction of being normally closed is adopted whereby such a risk that is interlocked in leaving one half part of these halved stock tubes 14 opened intact is brought to nothing and, what is more, such a cause that said one half part of these stock tubes 24 openes and colloides with a guide inner circumferential surface, causing generation of a noise, is eliminated.

Description

Detailed Description of the Invention: Relating to a bar @ dynamic feeding device that takes out a bar from a bar and supplies the entire bar to a magazine for supplying the bar to a multi-spindle automatic lathe that processes the entire bar. .

Up to now, various mechanisms have been developed regarding the magazine itself and mechanisms for fully automatically supplying bars from the stock shelf to the magazine. However, the following drawbacks have been pointed out to conventional devices.

(1) The drive source for the magazine stock tube opening/closing device and the stock material removal device were separate and complicated, or even if they were driven by the same drive source, It was troublesome to have to adjust or replace the pawls and grooved cams for taking out the seven bar blades every time the bar specifications were changed (for example, between hexagonal and hexagonal bars). 2) The λ-divided stock tube (for receiving and holding bars) attached to the magazine is constantly acted on in the opening direction by a torsion spring, so when the magazine rotates, the λ-divided stock tube is caused by inertia. In addition, when the magazine rotates due to the force of the torsion spring acting in the opening direction, the half of the stock tube remains open (to prevent the stock tube from opening). In many cases, V( The guide is cut out, and instead an auxiliary guide is provided in this area to prevent the stock tube from opening during processing of the bar, but this auxiliary guide cannot be moved when feeding the frame material. The drive source for opening and closing the stock tube was separate from the drive source for opening and closing the stock tube, making the structure complicated and requiring time to adjust the timing. An open type magazine has also been developed that has a V-shaped groove and uses a tail rail instead of using a stock tube, but this type requires replacing the seal metal when changing the bar size. Moreover, the inner circumferential surface of the guide (which closes the V-shaped groove of the Ohnon type) was easily worn out due to the rotational movement of the bar. Because the coil spring was used as a full torsion spring as a spring to keep it active, the hooks at both ends of the spring were prone to breakage.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an automatic bar feeder that can eliminate the above-mentioned drawbacks and has a simple structure.

To achieve this objective, the automatic bar feeder of the present invention is designed to rotate an indexing plate for taking out 7 bars at a time from a stock shelf in a warehouse. 8II source, not only the movement of the auxiliary guide 9 but also the opening operation of the stock tube is slowed by 1'ξI. ■ In order to operate the magazine completely silently, the outer circumference of the stock reel of the magazine Vc is A roller is provided, and the roller is formed so that the roller rolls on the inner periphery of the guide, iii.
By adopting a method in which one half of the two-split stock tube is always operated in the closed direction, the danger of one half of the stock tube moving while open is eliminated.
In order to prevent one half of the stock tube from opening and colliding with the inner circumferential surface of the guide, causing a bump, one half of the stock tube should always be moved in the open direction G' (2).
Since the spring for the coil was used to receive the full compression or tension action of the coil snorf, it was
Breakage of the hook when used as a shock spring - J! It is characterized by being able to make fun of things.

Hereinafter, embodiments of the inventive automatic bar feeder 6 will be described based on the accompanying drawings.

In order to facilitate the processing of the present invention, FIG. 1 shows an inclined stock shelf 10 for storing bars, and an index plate device 11 for taking out a total of seven bars from the inclined stock shelf 10.
, a magazine 14 for receiving seven bars each from the indexing plate device 11 into the stock tube; and a magazine 14.
FIG. 3 is a plan view showing the relative positional relationship of a multi-spindle automatic lathe 16 for processing all the bar materials supplied from the wafer. The concept of "bar material automatic feeding device" used in this specification-H includes the inclined stock shelf 10, the indexing plate device 11, and the magazine 16f, excluding the multi-spindle automatic lathe 16! : Can be considered as inclusive.

Figure 2 shows the automatic bar feeder of the present invention, shown by the arrows in Figure 7.
This is a side view seen from the direction indicated by , therefore, the first figure is the one located closest to the front among the same stock reels 20 and index plates 12 arranged in multiple rows along the axial direction perpendicular to the plane of the paper. It shows only things.

The magazine 14 has a stock reel 20 that is rotationally driven in the direction indicated by arrow C by a rotating shaft 50, and a plurality of stock tubes 24 are provided on the outer 18 portion of the stock reel 2o. The stock tube 24 is a two-part stock tube, with one half designated by the number 24A and the capacity half designated by the full number 24B. Although it is fixed at 2°, the other half 24Bt,
J:, pivot 1t (stock reel 2oV around b26
cs and toboko! It is attached to a pivot member 30 with a single force. The pivot member 30 is formed with a protrusion 32 which is rotated around the pivot 2G by a compression coil spring 36 and a push pin 38 held on a suitable bracket fixed to the stock reel 20. 1, which is constantly pressed to rotate in a clockwise direction, thus
The pivot member 30 and stock tube half 24B are
The position shown in solid line in FIG. 2, that is, the stock tube 24
is constantly pressed in the closed direction.

A main guide 40 is fixedly disposed at a position close to the outer periphery of the stock reel 2o of the magazine 14 so as to completely surround the stock reel.

A region of the main guide 40 adjacent to the index plate 12, that is, a region for receiving the bar 18 from the index plate 12, is partially cut out, and in this region, the main guide 40 has an auxiliary force. id 42 is provided.

The support id 42 can be moved from the position shown by the solid line to the position shown by the broken line by the method described later,
Therefore, it is provided offset from the main guide 40 in the axial direction (direction perpendicular to the plane of paper 7). The main guide 40 and the auxiliary guide 42 have an inner guide surface and an outer guide surface 46 formed therein. Stock seal 2
A plurality of rollers 48 are provided on the outer periphery of the roller 0 at appropriate intervals. The main roller 48 moves along the inner circumferential guide surface 44 of the id 40 and the auxiliary guide 42. The Sluts reel 20 itself has a magazine 14
However, by supporting each stock reel 20 against the inner circumferential guide surface 44 via a roller 48 provided on the outer circumference of the stock reel 20, it is possible to It becomes possible to significantly reduce vibration and noise when the stock reel 20 rotates, which has been a drawback of magazines. ′-! , the pivot member 3
0, a protrusion 33 different from the protrusion 32 is formed. This protrusion 33I''i outer circumferential guide o'+j46
The yoQ also protrudes outward in the radial direction, and a roller 52 is attached to its tip. Since this row 252 is provided at a small distance from the outer circumferential guide surface 46, it is unlikely that it will come into contact with the outer circumferential guide surface 46 under normal circumstances, but due to inertia force and other causes when the stock reel 20 rotates. , stock tube 240 half 24B
When you are suddenly subjected to a force that tries to release you,
The roller 52 comes into contact with the outer circumferential guide surface 46 and works to prevent the half portion 24B from being released unexpectedly.

The index plate 12 is fixed to the rotating 1tll154,
J! of the motor etc. that drives the rotating shaft 54! It is rotated in the direction shown by the arrow by an i-swivel gap (not shown). Index plate 1
2 is provided with a receiving groove 56 for receiving seven bars 18 out of a large number of bars placed on the inclined stock shelf 10. Rotation l111154 The VC further has an arm 58 fixed thereto, and the arm 58 is rotated together with the index plate 12.

A locking piece 60 is attached near the tip of the arm 58 for pressing the pivot plate 30 in a manner described later and allowing the pivot plate to pivot against the action of the spring 36. . A support plate 62 is further fixed to the rotating shaft 54, and the support plate 62 also rotates together with the index plate 12 and the arm 58. The support plate 62 supports the auxiliary guide 1'4.
The auxiliary id 42 is fixed to the support plate 62 by Del Toro 4.

The bar 18 that has fallen from the receiving groove 56 of the index plate 12 is received by the bar receiving plate 66 and guided to the stock tube 24 while rolling on the inclined surface 68.

Incidentally, number 70 shows a part of the feeder for pressing the rear end of the bar supplied into the stock tube 24 and feeding it toward the multi-spindle automatic lathe 16. The feeding gear 70 is supported by a unit 72i' with a slide bearing, which is designed to reduce the cost and power consumption. The car runs in a direction perpendicular to the plane of the paper along the burnt-out printing input rail 76 and the upper metal stock tube 24! 1! υ will be

Number 80, magazine 14.1. - and cutting board 12/
c. Showing the surrounding housing gold.

Next, the operation of the automatic rod 41 feeding device of the present invention constructed as described above will be explained.

When the multi-spindle automatic lathe 16 completes the stock tube 24 and the stock tube 24 becomes empty,
I50 rotates in the direction of arrow C until it becomes empty] - As shown in Figure A of 24-karat gold tube, move the main tube to the area where a part of the id 40 is cut out. , the material 18 is stopped at about 1ρ by the amount of water supplied into the tube 24.

While the empty stock tube 24 is stopped to directly receive the bar material, a drive source such as a motor that drives the indexing plate 12 all the way through 11 is activated to move the indexing plate 12 in the direction indicated by the arrow. Rotate it approximately //θ°. This time, the receiving groove 5G of the index plate 12, which received the seven rods 18 from the diagonal stock shelf 10, reaches the almost completed position shown by the broken line. As a result, the bar 18 falls from the receiving groove 56 onto the bar receiving plate 66, and the bar 18 rolls on the inclined surface 68 toward the stock tube 24.

However, since the stock tube 24 has already been opened by the rotation of the index plate 12, as described below, the bar 18 is successfully received into the stock tube 24. That is, as described above, the receiving groove 56 that receives the rod 18 rotates approximately //θ in the direction of the arrow from the position indicated by the solid line to the position indicated by the broken line, thereby causing the rod 18 to fall onto the receiving plate 66. At the same time, the arm 58 and the support plate 62
Since the arm 58 and the support plate 62 rotate together with the index plate 12, the arm 58 and the support plate 62 also rotate as shown by the line 01.

Therefore, due to this rotational movement, the roller 52 provided on the protrusion 33 of the pivoting member 30 and the outer periphery of the auxiliary guide 42 are first disengaged from the id 46, and then the arm 5
A locking piece 60 provided near the tip of the pivot part 3 (
), the pivoting member 30 is fully compressed and pivoted at a position fi'+'i indicated by a broken line against the pressing force of the spring 36. As a result, the pivot part month 3
Stock tube 240 half 248 that is not fixed at 0
is pivoted to the position shown in phantom, the stock tube 24 is opened, and the bar 18 is received within the stock tube 24.

As is clear from the above, according to the present invention, the index plate 1
2f! : The opening operation of the stock tube 24 and the escape operation of the auxiliary guide 42 can all be performed by a single drive source for rotation, and this can be done with an extremely simple configuration. , there is no need for complex f1.adjustments compared to conventional devices.

Further, when the stock reel 20 of the magazine 14 rotates, it is subject to a considerable impact, but according to the device of the present invention, a roller 48 is provided on the outer periphery of the stock reel 20, and the roller 48 is connected to the main guide. )'40 and the auxiliary are configured to transmit power along the inner periphery of the id 42 and along the id surface 44, which has the effect of significantly reducing vibration and noise when the reel 20 rotates, compared to conventional devices. .

Furthermore, according to the device of the present invention, the co-divided stock tube 2
The coil spring 36 is used as a spring to keep the half part 248 of 4 pressed in the closing direction at all times, and this coil spring 3G is used in such a manner that it is subjected to compression and expansion/contraction action, which is different from the conventional device 1ffl. Compared to the coil spring used as a full-tone spring, no hooking part is required, and therefore the breakage of the retracted part that often occurs is completely eliminated.

In other devices of the present invention, it is received in the stock tube 24! All multi-axis self-finishing rod materials! /The method of feeding the bar to the I board 16 uses D, C, and motors (not shown), and V- performs analog operation at the start, so that the tip of the bar is fed into a predetermined position. After inspecting the amount of money, we will make a detailed control plan so that it is possible to easily adjust the feed Jft and force by 1 meter.

Man'C% When retreating, Pct ma Analog 1 turn and reverse position II ￥
It is supposed to go back up to.

Furthermore, according to the device V of the present invention, a feed bar 70fr:
The chain-end mid-response system is adopted for driving, but the chain-end mid-response system is completely reduced, which is the drawback of the chain-endless system. A chain support (not shown) is used for almost the entire length.

[Brief explanation of the drawing]

Figure 1 shows the inclined stock shelf 1. Relative body of clitoris, Maganon and multi-port automatic lathe 1. 'f It is related to Kaneko's thousand-sided map. FIG. 2 is a side view of the automatic salary feeding device of the present invention, viewed from the direction indicated by the arrow ■ in FIG. 1. 210・
・・ILII・σF stock shelf, 12...separate board,
14...Magazine, 20...Stock reel, 24
...-divided stock reel, 30... pivoting member, 3
G... Compression coil spring, 40... Main guide, 42... Auxiliary guide, 58
...Arm, 62...Support plate procedural amendment 58.17. -2 1. Display of the case 1982 Patent Application No. 177635 2, Title of the invention Automatic bar feeding device 3, Relationship with the supplementary case Applicant Ikura Seikisei Xaxy Name Ikura Oki Manufacturing Co., Ltd. h1 4, Agent Person 5? Attachment 11 of the Ordinary Order to Voluntary Issue 1, the drawing (Fig. 1) shall be amended as shown in the attached drawing. 2. Amend the claims as per Section 11E. 3. The description of the detailed description of the invention is supplemented as follows. Claims (1) A magazine including a rotatable stock reel and a two-part stock tube provided on the outer periphery of the stock reel, and a magazine provided adjacent to the magazine on which a bar is placed. In an automatic bar feeder comprising a rotatable indexing plate that takes out bars one by one from an inclined stock shelf and supplies them to the two-part stock tube, one half of the two-part stock tube is It is fixed to the stock reel, and the other half is divided into two parts (・
The stock tube is pivotably attached to the stock reel under the action of an elastic force that permanently closes the stock tube, and the other half of the two-part stock tube is integrally formed with the index plate. An automatic bar feeder characterized in that it is opened by a rotating arm. (2) A magazine equipped with a freely rotatable stock reel and a two-part stock tube provided on the outer periphery of the stock reel, and a slanted stock shelf provided adjacent to the magazine on which bars are placed. Take one bar from 11
In an automatic bar feeder comprising a rotatable index plate that supplies the two-part stock tube at once, one half of the two-part stock tube is fixed to the stock reel, and the other half of the two-part stock tube is fixed to the stock reel. The other half of the two-part stock tube is only pivotably mounted to the stock reel under the action of an elastic force in the direction of closing the two-part stock tube when fully closed. The stock reel is opened by an arm that rotates integrally with the index plate, and a plurality of rollers are provided on the outer periphery of the stock reel, and the rollers are provided at positions close to the outer periphery of the stock reel. An automatic bar feeding device characterized in that the bar material is rolled on one surface of an inner peripheral guy of a main guide and an auxiliary guide. (3) The automatic bar feeder according to claim 2, wherein the auxiliary guide is integrated with the index plate and the arm and rotates once. ] −=

Claims (1)

[Claims] (1) From a magazine equipped with a freely rotatable stock reel and a λ-divided stock tube provided on the outer periphery of the stock reel, and an inclined stock shelf provided adjacent to the magazine on which bars are placed. In an automatic bar feeder comprising a rotatable indexing plate that takes out seven bars at a time and supplies them to the λ-divided stock tube, one half of the λ-divided stock tube is fixed to the stock reel. The other half of the λ-split stock tube is pivotally attached to the stock reel under the action of an elastic force that causes the one-segment stock tube to become chained. 1. An automatic bar feeder, characterized in that half of the bar is opened by an arm that rotates integrally with the index plate. ((2) A machine equipped with a freely rotatable stock reel and a λ-divided stock reel provided on the outer periphery of the stock reel, and the machine is provided in contact with the stock reel and the stock reel is attached to the stock reel. Take 7 bars from the placed stock shelf.
In an automatic bar feeder comprising a rotatable indexing plate that feeds a front M6.2 divided stock tube in one-by-one take-out steps 1 to 1, one half of the λ divided stock tube is fixed to the stock reel. The other half of the split stock reel is pivotably attached to the stock reel under the action of an elastic force in a direction that permanently closes the split stock reel. E is opened by an arm that rotates integrally with the index plate, and a roller is provided on the outer periphery of the stock reel, and the roller is located close to the outer periphery of the stock reel. An automatic bar feeding device characterized in that the inner peripheral guide surfaces of the main guide and the auxiliary guide are rotated. Force The automatic bar feeding device according to claim 2, wherein the auxiliary guide rotates integrally with the index plate and the arm.