JPS59102515A - Bar feeder - Google Patents

Abstract

PURPOSE:To make level control for a feed table automatically performable and relieve the burden imposed on an operator, by operating a driving device and controlling each of plural stands supporting the feed table to automatically expand or retract it, while constituting the feed table so as to cause it to move up and down. CONSTITUTION:A control device which automatically performs level control for a movable leg, for example, an automatic operation control part 99 calculates the deflection between the center of a bar to be mounted on V-rollers 56, 56... of a feed table 51 and the center of a bar to service as a reference and rotates and controls a motor so as to cause both centers to be accorded with each other as well as to make the movable leg go up or down as long as for a portion of the deflection length whereby a rotary block is forcibly pressed to bearing part of a stationary leg, then this block is locked and the feed table 51 is made to go up as much as the specified length, so that level control is completed. Thus, the level control for the feed table is achieved automatically and the burden imposed on an operator can be relieved.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Use This EJ1 is used for conveying various types of bars, especially for supplying bars to small machineries such as restraint cutting machines. Conventional technology: For example, a feeding device that feeds a bar to a restraint cutting machine that cuts a bar to a fixed size, regardless of its diameter, is There is a device as shown in FIG. This is the storage section (2) that accommodates a large number of bars 11).
and a feeding force section (3) that feeds the bar material (1) to a tree.

The storage section 12] is a rectangular frame large enough to place a large number of bars (1) (41 is provided with a plurality of crosspieces (5) (51@...) at the end near the feeding section (3). Place the rotary shaft (4ii11 f61) along the direction of the force, and fix the feed claw +7 (f7)... to an appropriate location on the rotary shaft (61), allowing the cylinder (8) to extend and contract. ) Linkage mechanism (not shown)
Rotate the rotating shaft (6) through the feed claws (7) (7).
) At e..., move the bar (1) on the frame f+3 to the force sending part (3)
There is no such thing as being transferred to. This frame (41) is tilted so that the side closer to the feeding group (3) is lower.
3) There is no pear so that it comes to the side.

In addition, the power sending section (3) has two rail-like 7 frames connected by connecting rods (10), and V rollers (11) are placed at appropriate intervals between the frames +91 and +9j. A plurality of sprocket wheels (I no α smell..., (+3) end,
... is fixed. A sprocket wheel (15) is fixed to the output shaft (14a) of the drive motor θ which is installed at the bottom of the feed table (3), and a chain ( 17)
Attach the sprocket wheels (2) (12) of each V roller (ll), jlυ..., and the four ends of θ.
Chains aυα91 are installed in a staggered manner, and when the drive motor (+4) is resistant to rotation, all V rollers (n)
In) *... is configured to rotate. (20
1 (2υ is 7 frames [9) +91 is a stand that supports the height adjustment i = r function, and the 0T moving shaft (1) (c) is screwed into the fixed base - (to), and the corresponding 0T # An operating handle (c) (271) is attached to the upper part of the movable axis (I) to rotate it.The upper end of the movable axis (271) is rotatably connected to the lower surface of the frame (t9). be.

Additionally, lock torsion fields (28a) and (29a) are provided between the fixing base (c) and the bottom surface of the 7-frame t9) 191. Therefore, when adjusting the height of the frame (9), the operator must attach the D lock screws ρ9) and (
28a) (29a), and then release the operating handle E2.
61 @7) Rotate the movable shaft (goods) 4 to the fixed base -
7 frames i91 (
Adjust the height of 9) to a predetermined height, and after adjustment, fix the lock screws (c) 4 and (28a) and (29a) again.

On the other hand, the restraint gJ device is used in principle to cut the cylindrical lower blade (blade) that restrains the bar 11) as shown in Figure 3, and intersects the front surface of the cylindrical lower blade to cut the bar fl. The bar material Ill protruding from between the cylindrical lower blades is set to a predetermined size by the stopper 4 and cut by the flat upper blade βυ. In addition, (30a) is a material guide which packs up the cylindrical lower blade and also smoothes the introduction of the material into the cylindrical lower blade Ko). like this【
In constrained cutting, the bar ill is cut with the cylindrical lower blade without rattling, so if the diameter of the bar to be cut i1) differs, the cylindrical lower blade (30) must be replaced.

By the way, this cylindrical lower blade is arranged so that its center is always at a constant position even if the inner diameter changes, but the feeding device that feeds the bar (1) to the cylindrical lower blade is the bar 11). f
, V roller (+t) (u)...Since it is placed on top and fed, the center will change if the diameter of the bar 111 changes.The cylindrical lower blade - and the V roller (+1) (Il
)...It is necessary to match the center of the upper bar ul. Such adjustments can be made using the stand (A) (2) of the feeder (3).
1) This can be done by adjusting the length, but
In the past, the lock screw (c) installed in the stand was manually operated by the operator.
・Adjustments are made by operating the stand η, which requires a lot of work, and the work efficiency is poor, so it takes time to make adjustments, and the two stands have to be adjusted under the same conditions, which requires skill. There are other problems, and furthermore, there is the problem that adjustments must be made every time the diameter of the bar material changes, and the cutting device stops for a long time during that time, resulting in a reduction in operating efficiency.Purpose of the Invention The present invention provides a feeding device that can automatically adjust the height of a feeding table so that the center of the bar is always at a constant height depending on the diameter of the bar to be fed. That is.

(2) Structure of the Invention This invention provides a vA movement means in which a feed table for feeding bars is supported by a multifunctional stand configured to be extendable and retractable, and the above-mentioned modified stand can be assisted by mechanical or electrical control. At the same time, the above-mentioned section side means is operated by an appropriate control means in accordance with the diameter of the bar placed on the feeder, and thereby the stand of the double government is moved to a predetermined position. The distance between the centers of the bars is always constant by adjusting the size of the feed table by expanding and contracting the dimensions. So, 7
A ram (6) is mounted on the front upper part of the ram (411) so as to be able to move up and down, and a flat blade is attached to the lower end of the ram (6). In the lower blade jig (200), there are a cylindrical lower blade, a material guide arranged concentrically with the cylindrical lower blade), a stopper and the same stopper f, A stopper mechanism (four stops) is provided for the moving stopper.The cylindrical lower blade is arranged so that its front end surface intersects the flat upper blade (a) 4, and the stopper is arranged oppositely in front of the cylindrical lower blade. are arranged to set the cutting length of the bar material.

) is the flywheel provided on the side of the frame (6), and 7) rotates the fd7 flywheel (a).
The output shaft of the motor (4 gamma) and the 7 dry wheel are connected by a belt. The tongue is a chute for discharging cut bars.

() The material guide (2) is inserted into the cutting device.
1 * A feed device that applies a feed of 9 to the bar material (1) ・5D and the corresponding feed stand C511ft Vertical movement OJ' ability to support the second attack, for example, two stands■ (To) It is made up of. As shown in FIG. 2, the feed table 1511 is made by arranging two long 7-lem cutouts with U-shaped surfaces facing each other with an appropriate interval, and connecting them at appropriate points. The rods are connected with 51s @ s, and a plurality of V rollers are rotatably installed in the longitudinal direction at appropriate intervals, and one protruding end of the V rollers is attached to the protruding end of both frames. The Suge rocket wheel φη group is fixed. Then, a Sugerocket wheel (
61 and the sprocket wheel (2) fixed to the V roller adjacent to it are connected by a chain @, and the Sugerocket wheel 15ηβη..., state... are connected by a chain, and when the drive motor (59) is operated, all the feed rollers are rotated.

As shown in FIGS. 5 and 2, the stand 15 has a fixed leg and a movable leg. A thick bearing part i6gJ[7α is formed at the center of the upper surface, and a through hole σnt72 is bored in the bearing part (fA crG K:.
A flat plate-like pedestal (67b) (68) is fixed to the upper end of 8a), and the shaft portion (6'7a) (6E3a) is slidably inserted into the through hole (ID (12J) of the fixed leg-1). It is not extendable and expandable by inserting it.And it is possible to insert the leg cradle (6
'/1)) (6E11:+) and machined 7 frame HL
5. It is connected to the lower surface of the reel to support the feed plate l). Also, the shaft part (εγa) (6
8a) is provided with a screw engraved over almost its entire length. (/3
1 is a rotating Glock screwed onto the shaft part (Pea) (6sa) of the movable leg [η-, and the rotating gear (7ω (76
1 is integrally provided. Said rotating glock t7 ken c74
1 has the lower surface formed into a rough surface by knurling or a radial tooth surface, and the opposing fixed leg - ((to) bearing akasumi (the upper surface is also formed into a rough surface or tooth surface). However, when the two come together, slippage occurs and the rotating block ff3
1 (No to prevent #7 from rotating.

(771 is rotatably supported via a bearing (811), and furthermore, the first bevel gear (necessarily facing) is integrally attached to the lower end.The driven gear surface σal/
/i It meshes with the rotary gear gear, and this slave gear surface @ is formed long and has a movable leg (without a movable leg so that it always meshes even when the time opening is raised).

(IO2) is o]' A large cover installed on the frame of the auxiliary leg.

- (to) is a recovery tank which is rotatably penetrated and supported by the fixed leg F6511fillillc, which corresponds to the follower gear, and as shown in Fig. The second bevel gear ea@ is fixedly installed. 18I is both rotation axis t
With the drive shaft placed between 841, the dogs are connected via the joint 1iJ)θB, A), and both rotating shafts - (C).
There is no such thing as connecting and rotating. The trowel is a motor that can be rotated in forward and reverse directions and is installed on the side of one of the fixed legs, and is meshed with a third bevel gear (to) fixedly attached to the output shaft (92a) K, as shown in FIG. Therefore, when the motor (il121) rotates, one rotating shaft (the tank is rotated and further the drive shaft 7) is rotated through the third bevel gear 1 and the third bevel gear 1.
1!1(i- The other rotating shaft (Yono) is also rotated. Then, when the rotation @+1 (c) rotates, the second bevel gear v
The subordinate gear surface (to) is rotated via the gear 5 and the first bevel gear t5, and the rotating block q3 which is in meshing relationship with this.
The joint is rotated, and the movable leg (Jtlll lf+'7 is movable by changing the relative position to the 6η field) 168
) to adjust the height.

((5) (to) is a cylinder provided at the lower part of the fixed N--, and its piston rond is connected to the shaft part (67
a) Connected to the lower end of (68a). When adjusting the height of the adjustable leg (671t), this cylinder (to) extends and raises the 01' excitation leg 6η, and the rotating block i731741 screwed thereon is fixed to the Bearing part: G9 (Detach it from 73 to make it rotatable, and after adjusting the height, shorten it and move the rotating block to the bearing part +69
1 (Lock the Glock 73a by pressing it against the 701.

(9!J is a control means that automatically adjusts the height of the movable leg-link, for example, an automatic calculation control unit, and the V roller l of the feed table βυ
6Qlti+l... Calculate the deviation between the center of the bar ill to be placed on top and the center of the bar that will be loaded, and divide the deviation so that both centers coincide ((to) (( The rotation of the motor (2) is controlled to raise or lower the motor (2).

The deviation of the center between the bar 111 and the reference bar is determined by calculating the difference between the diameter of the bar (1) and the reference bar;
It is obtained by taking /2 of the difference.

In addition, the rotation control of the motor can be carried out, for example, by attaching a disc WJt to a rotating shaft or drive shaft, and
A light detection means (102) consisting of a light emitter and receiver is provided on the periphery of the light detecting means (102) facing a multi-purpose notch or slit (10 m).
A notch or slit that allows light to pass through as the disk rotates. Based on the rotation angle, determine the periodic movement dimension t between the movable motor and the rotating block (73 points), and rotate the motor until the dimension matches the pre-calculated dimension. In addition, from the rotation axis (B41 (to)) to the rotation block nff
41, first calculate the rotation angle of the rotating shaft (841 (c) with the gear ratio of the subordinate tIJ gear f7'/] (2) and the rotating gear σ of the rotating Glock (131741) ('7G). The rotation angle of the rotating Glock A31 ball is determined by dividing, and this rotation angle and the shaft part (6'i'a) of the movable leg (681) (68
It can be calculated by integrating the pitches of the screws carved in a).

In addition, as another control, the rotating block (73
Determine the rotation angle mtu (to) required to move the fork by the above dimension, calculate the corresponding notch or slit (10 points) in the disk (2), and calculate the kakuto limit and the above calculated rotation angle. Alternatively, the motor may be rotated until the changes match.

Furthermore, by using a pulse motor as the motor and controlling the rotation of the pulse motor by generating the number of pulses necessary for moving the rotation block f73 t741 at the automatic calculation control section (9m), the rotation axis l841 (to) is aligned. A trap rotation block (73) may be rotated.

To explain its operation in the above configuration, to cut the bar (1), operate the drive motor of the cutting device 4 with η to rotate the flywheel 4, and set the stopper mechanism to the length to be cut. set. At the same time, the drive motor of the feeding device is operated to rotate each V roller of the feeding table f1υ by flashing, gripping, etc. 21g. And V roller 1v61・
...Feed the bar 113 placed on the top forward, pass the material guide (3) of the cutting device i41, insert it into the cylindrical lower blade, and feed until it contacts the stopper mechanism. When the bar ill is made to protrude a predetermined length from the cylindrical lower blade and its tip abuts against the stopper mechanism, the flat upper blade (c) descends and cuts the bar ill between it and the cylindrical lower blade. The cut bar is pushed downward at the same time as it is cut, and is discharged to a predetermined position by a chute. And when the Hiragami Hame rises, the stick ill
is fed out until the tip comes into contact with the four stopper mechanisms.After this, the flat upper blade (T) descends to remove the bar material.
is disconnected.

The bar 11+ is cut by repeating these operations one after another.

Next, a bar material i1) having a diameter different from the bar material ill, for example a small diameter material, is 9Jv! ? In this case, replace the cylindrical lower blade m of the cutting device d4 with a cylindrical lower blade of the corresponding diameter, and at the same time input the diameter of the new bar material (l) to be cut into the automatic calculation control section (g). Then, the automatic calculation control unit (@ calculates the dimension to be adjusted of the feed table 1 from the left of the diameter of the bar 111 that was cut last time and the input diameter, and stores it. The cylinder (H) provided on the fixed leg of the stand that supports the rear feed table/BL extends and raises the intermediate shaft (movable leg 1677 + 88 through the dark) and rotates. Block 63σ is fixed on the leg (to) can sleeve gun 11
Separate it from 47υ and make it rotary OT function. In this state, the motor rotates in the opposite direction, rotating one of the rotating shafts,
At the same time, the other rotating shaft (□□
Rotation that rotates □ When the gate rotates, the driven gear ff7] The layer rotates and rotation 10
Rotate 7293 colors and lower them. At this time, the rotary shaft or drive shaft - a disk with 711 dimensions - rotates, and the legal means (102) detects this and starts! Transfer to J calculation control unit +9I. Then, the automatic arithmetic control section calculates the movement dimension of the rotating grommet qJq according to the above-mentioned item 1, and when the dimension matches the adjustment dimension stored in advance, the rotation of the motor Q is stopped and the rotating grommet (° Stop the rotation of the oil.After this, the cylinder (E) (
(to) shortens and lowers the movable leg (1) to press the rotating Glock (73) into fixed leg (to) Kasumi's bearing (s-),
This is locked and the feed bar φQ is raised by a predetermined dimension to complete the height adjustment.

In this way, when both sides of the feed table t[iu are adjusted to a height where the center of the newly cut bar (5) and the center of the cylindrical lower blade of the cutting device t41 coincide, A new bar material pi is supplied to the cutting device using the force feeding device φ, and the bar material ill is cut.

Also, the diameter of the new bar 11) to be cut is the bar +
If the diameter is larger than 1), when adjusting the height of υ of the feed base,
Rotate the motor forward and raise the rotating Glock (to) (741) with the movable leg ((2) warmly rd.

During this height adjustment, if the diameter of the bar f1) is small, the rotating Glock 63 will drop to the movable leg position, and if the diameter is large, the rotating Glock f73 will rise. , the rotating Glock f73 U4) is fixed at a fixed position on the fixed leg -ω, so when the adjustment is completed, there is no possibility that the movable leg will rise or fall relative to the fixed leg (651fB). , the center of the bar flll is always adjusted to be constant!

Note that the bar material used as a reference here is the bar material transported last time during the adjustment + 1) t-.

In addition, as another embodiment, to alleviate the problem of the drive shaft, each stand 1521531 is provided with, for example, a pulse motor, and the individual rotation axes t841 f85) are made independently rotatable by the pulse motor, and the automatic calculation control unit - Both pulse motors may be controlled simultaneously.

EFFECTS OF THE INVENTION This invention operates the drive means in response to a signal from the control means to automatically expand and contract the plurality of stands that support the feed table, thereby moving the feed table up and down. The height of the feed table can be automatically adjusted, reducing the burden on the worker and improving work efficiency. Moreover, the height adjustment of the feed table is performed by using a control means to determine the deviation between the centers of bars of different diameters placed on the feed table and the center of the reference bar, and to correct this deviation. Since all the stands are expanded and contracted by the same size by operating the driving means, the center height can be kept constant even if the diameter of the bar becomes large or small. Using an automatic arithmetic and control device as a means [J Height adjustment can be done in a short time. Therefore, if this feeding device is applied to feed bars to various processing machines such as cutting devices, the operating rate of the processing machines will be improved and productivity will also be improved. In addition, by using a gear transmission means as the drive means and connecting the means with a drive shaft, it is possible to operate both at the same time and under the same conditions with a single motor, which simplifies the structure.

[Brief explanation of drawings]

Fig. 7 is a plan view showing a conventional shear feeding device, Fig. 2 is a front view thereof, Fig. 3 is a sectional view showing the principle of a restraint cutting device, and Fig.
Figure 5 is a front view showing one embodiment of the present invention, Figure 5 is a drawing showing the connection of the stands, Figure g is a first analysis view showing the driving means of the stand, and Figure 2 is a cross-sectional plan view thereof. . 0)--Feeding device, benefit...feeding stand, (5A cost...stunt, (foundation)...frame, □...V-roller, tbsw
- Fixed leg, vI link... Movable leg, t73f741- Rotating block, (C)... Rotating shaft, ■ Drive shaft, Ring... Motor, Trowel... Control means. Line 5 Figure 6/' Dol

Claims (1)

[Claims] 11) A feeding table in which a plurality of actively driven V rollers are arranged at appropriate intervals on a long frame, and a plurality of elongating rollers supporting the feeding table. a01″ A flexible stand and the plurality of stands are simultaneously expanded and contracted by the same dimension! [if
7 means, and a control means for expanding and contracting the stand by a predetermined dimension according to the diameter of the bar placed on the feed table and adjusting the height of the feed table so that the center of the bar is at a constant height. A bar feeding device characterized by comprising: