JPS609532A - Transfer device for press - Google Patents

Abstract

PURPOSE:To obtain a titled device capable of reducing a floor space required for the whole equipment by repeating the lateral and vertical reciprocating motions of a transporting bar in a proper timing and transporting a workpiece in sequence. CONSTITUTION:When an output shaft 26a of a motor 26 is rotated anticlockwise in the arrow (a) direction, the rotating motion is transmitted to a rotating shaft 29 to rotate a gear 36 anticlockwise B. Then a transporting bar 1 held between freely rotatable rolls 11, 12, 17, 18 is moved rightward in accordance with the number of revolutions and rotational speed of the gear 36. Next, the bar 1 is moved leftward by the clockwise rotation of the shaft 26a. Further, a vertically moving bar 20 is raised by rotating a shaft 23 of a motor 22 by a certain angle in the arrow C direction, to raise one end of a lever 9. Accordingly, the rolls 11, 12 are rocked respectively around supporting axes 5, 8 to transmit their rocking motions to the rolls 17, 18 through a vebrating plate 16 and a rod 19, thereby moving downward the bar 1 held between the rolls 11, 12, 17, 18.

Description

DETAILED DESCRIPTION OF THE INVENTION Komei Komei relates to a press transfer device that sequentially transfers processed products to a press machine.

During press work, the processed product is transported into the press machine, positioned,
A series of operations such as processing and transporting are carried out. In this work, especially in the work of loading and unloading, various automation of this work has been proposed from the viewpoint of safety and work efficiency (to perform it without human intervention).

For example, a transfer device disclosed in Japanese Patent Application Laid-open No. 56-21751 (iI) is used to store processed products.
1. To move the conveyor bar with a retainer to be released up and down and to move it back and forth from side to side. i j
The processed products held in the machine are sequentially transferred to the next work location.

The device shown here is characterized in that it is possible to change the moving stroke of the retainer to a wide range.

However, the drive part of the device and the transport bar are connected by a long link or drive rod, and as the distance between work areas increases, the length must also be increased, and the entire device has One of the drawbacks was that it took up a lot of floor space.

The object of the present invention has been made to eliminate this drawback, and it is possible to change the vertical and horizontal strokes of a conveying bar having a retainer over a wide range, unlike the conventional method. The object of the present invention is to provide a transfer device for a press which has the above characteristics and further reduces the floor space of the entire device.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a perspective view of a transfer device for a press,
FIG. 2 does not show the partial side view of FIG. Reference numeral 1 denotes a conveying bar, which performs 1i return movements up and down and left and right by a mechanism to be described later. This conveyance bar 1 is provided with a plurality of retainers 2 (only 1 gJ is shown in the figure) for holding and releasing the processed product, and the retainers 2 are made of, for example, a suction cup or a magnet. There is. Also, in the figure, the retainer 2 is fixed at a constant 1[!] of the conveying bar 1. , is shown fixed in one place, but it can be changed horizontally and vertically. 3 is a fixed block, and it is fixed on the base 4 (=J
4111. This fixed block 3 has four support shafts 5, 6, 7, 8 protruding in the same direction.
lj In the force direction, the positions of support shafts 5 and 6 and the positions of support shafts 7 and 8 are on a straight line, and in the horizontal direction, the positions of support shafts 5 and 7, and the positions of support shafts 6 and E3 are also They are arranged in a straight line. 9.10 is a lever arranged so that its approximately middle portion is rotatably supported by a support shaft 5.8, and one end of the lever 9 is protruded from a rocking plate 16 to be described later. The support shaft 16a is rotatably supported by a support shaft 16a, and a roller 11 made of a polymeric material 1 such as nylon is rotatably mounted on the support shaft 16a. A D-Lar 12 is also rotatably supported at one end of the lever 10, and is connected to the support shaft 8 and 1.
-1- The distance from the roller 12 is equal to the distance between the support shaft 5 and the roller 11. The other ends of the levers 9.10 are connected by a rod 13.
The connection position of the rod 13 in 10 and the distance between each support shaft 5.8 are the same. One end of a swinging lever 14.15 is rotatably attached to each of the spindles 6.7, and the other end of the swinging lever 14 is rotatably attached to a spindle 161) projecting from the swinging plate 16. It is movably supported, and furthermore, a roller 17 is rotatably mounted on this support shaft 16b.

Further, a 61"-lar 18 is rotatably supported at the other end of the swinging lever 15, and the swinging lever 14 and the lever 9 are connected to each other by a swinging plate 16, and the swinging lever 15 and the lever 10 are connected to each other by a swinging plate 16.
is connected to the swing lever 14 by a rod 19.
．． 15 follows the movement of lever 9.10. In addition, the distance between the support shaft 6 and (21-ra 17, the support 11
The distance between the roller 1117 and the roller 18 is equal to the distance between the support @5 and the roller 11. , 20 is a lifting bar, one end of which is connected to the lever 9, and the other end is connected to the lifting drive device 21.
is connected to. For example, the lifting drive device 21 is attached to a fixed block 21a (a reversible rotary motor 22f/).
Place the disk 24 at the tip of the rotating shaft 23 (=J, this disk 2
4, the bottle 2 has a groove at a position eccentric to the axis of the rotating shaft 23.
5, and a lifting bar 20 is attached to this pin 2.
By connecting one end of the bar 23 and changing the rotation angle, the -1-downward stroke of the lifting bar 20 can be changed.

26 is a separately installed rotatable motor 22, etc.
The motor 26 is supported by a support block 27 attached to the base 4, and a pulley 28 is fixed to the output shaft 26a of the motor 26. 29 (Lever 3 rotatable around a support shaft 30 protruding from the four-rotation shaft C1 fixed block 3)
1, and is rotatably supported by a bearing portion 31a provided at one end of the rotary shaft 29.
is crotch (J), and the rotational movement of pulley 28 is from bell i to 33
[It is intended to be transmitted through]. One end of the bearing portion 31a is a rectangular long hole provided in the swing plate 16; a fitting hole 35a provided in the sliding plate 35 that can move only in the left and right directions i+J with respect to the swing plate 1G along the axis 34. A gear 36 is attached to the final end of the rotating shaft 29. This gear 36 is adapted to mesh with a rack 37 installed longitudinally on the side surface of the conveying bar 1. Note that the rotation timing, rotation number, rotation angle, rotation speed, etc. of the motor 22.2G are set by appropriate control means,
And the timing is mutual.

Next, the operation of the press transfer device constructed as described above will be explained.

First, the movement of the conveyor bar 1 having the retainer 2 in the left-right direction will be explained. The output @26a of the motor 26 rotates counterclockwise as indicated by the arrow △ based on a command from a control means (not shown). This rotational movement is transmitted via the pulley 28 and the belt 33 to the pulley 32 and the rotating shaft 2.
9, the gear 36 rotates counterclockwise as shown by arrow B, and the rotatable rollers 1L, 12.1
The conveyance bar 1 held by the gears 7.18 moves to the right in accordance with the number of rotations and the rotational speed of the gear 3G. When the output shaft of the motor 26 warps in the direction of the arrow 4G (, 7, that is, when it rotates clockwise, the conveyor bar 1 moves to the left.
If the distance between the rollers 11 and 17 can be made variable by adjusting the position of the rollers 11 and 17 in the vertical direction, and by changing the length of the roller 19, the distance between the rollers 12 and 18 can be adjusted. By varying the interval, it is possible to adjust the clamping force of the conveying bar '1 by the rollers.

Next, the vertical movement of the conveyance bar 1 will be explained. FIG. 1 shows the lowest position 1°Ln of the conveyor bar 1, and from the state shown in FIG. When this is done, the lifting bar 20 will rise. This upward movement of the lifting bar 20 causes one end of the lever 9 to rise, and also causes one end of the lever 10 to be raised via the rod 13, thereby causing [1
- The rollers 11.12 each swing downwards about the support shafts 5.8.

This rocking movement is also transmitted via the rocking plate 16 and the rod 19 to the l-rollers 17,18. Therefore, these [l-ra 11
．． The transport bar 1, which is clamped by 12, 17, and 18, will move downward. At this time, the swing plate 16 also swings with the swing movement of the rollers 11.17, and this movement therefore swings the slide 1335, the bearing portion 31a, and the lever 31. In other words, even if the conveyance bar 1 moves downward, the meshing relationship between the gear 36 and the rack 37 is maintained. One end of the bearing part 31a is rotatably held by a sliding plate 35 that is slidable along the elongated hole 34, so that when the conveyor bar 1 moves up and down, the support shaft 30 of the lever 31 and the support shaft 5 and the center of rotation of the lever 31 (support shaft 30)
to the bearing part 31a and the distance from the spindle 5 to the roller 11
The bearing part 31a and the rocking plate 16 due to the difference in distance between
This is to solve the relative movement in the left and right direction with Wj.

As explained above, by repeatedly reciprocating the transport bar 1 in the horizontal and vertical directions with appropriate timing, the processed products are transported in sequence.
It is a pool.

In this embodiment, the rotational motion of the motor 26 is directly transmitted to the gear 36J (rerack 37), so there is no need to connect the drive unit and the conveyance bar with the chain 11 or drive rod as in the conventional case. , the floor area of the entire device can be reduced. Furthermore, by making the rotational speed and rotational speed of the motor 26 variable, the horizontal stroke and movement speed of the conveying bar 1 can be set as appropriate. In addition, the l112 feeding bar 1 is lifted and lowered by rollers 11, 12, 17, and 18 made of a polymeric material that sandwich it.
The transport bar 1 moves in a circle as it is moved up and down by the I device 21.
I'1, quiet (furthermore, the stroke of this vertical movement, up and down 1 i (> 1: - rotation angle of the rotor 22! Good, change the rotation speed (can be set as appropriate). Even during the 1-10 movement, the gear 36 and the rack 37
It is possible to maintain the @ conjunction relationship at all times.

In the above embodiment, the levers 9 and 10 are rotatably supported at their substantially intermediate portions, and one end of the levers is connected to the four lowering bars 20, so that the vertical movement of the raising and lowering bars 20 is controlled by the levers 9.10.
10, but the invention is not limited thereto; at least as the lifting bar 20 moves up and down, the roller 11 provided at one end of the lever 9.10 follows this movement.
．． 12 may be connected so that they move up and down in the same direction.

Also, instead of the gear 36, a timing pulley and a rack 37
It is also possible to use a timing belt instead.

As explained above in one embodiment, the press transfer equipment of the present invention has the characteristic that the stroke of the retainer, which was conventionally used, can be varied over a wide range, and roughly speaking, the entire device has The floor space can be reduced, and it can be easily installed inside a press machine.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the press transfer device of the present invention, and FIG. 2 is a partial side view of FIG. 1. 1... Conveyance bar, 2... Retainer, 9.10...
Lever, 11.12.17.18...Roller, 14
．． 15: Swing lever; 16: Swing plate; 20: Lifting bar; 21: Lifting drive device. Patent applicant: Toshiba Seiki Co., Ltd. Procedural F1 was established (voluntarily). 3f1. Shout-9・i5゜Mr. Kazuo Wakasugi, Commissioner of the Japan Patent Office1, Indication of the case, 1982 Patent Application No. 1160152, Name of the invention, Transfer device for press 3, Relationship with the case by the person making the amendment Voluntary amendment by the patent applicant 5. Subject of amendment (1) The scope of claims in Mei III 11 is amended as shown in the attached sheet. (2') 1llllf@17) JXX bottom part, page 2, line 5, line 7, line 1'4, line 17, line 3, line 19 to line 20, page 9 "Processed product" in the 18th line is corrected to "Processed product". (3) Correct "rotation" to "rotation" in the following three locations of clear m, page 20, page 5, line 10, and lines 11 and 12. Above (Attachment) 2. Scope of Claims (1) Speed - A conveyor bar that holds a holder that holds and releases a processed product, a lifting device for this conveyor bar, etc. In a press transfer device having a reciprocating drive device for reciprocating in the longitudinal direction, the elevating device has at least two rotatably supported levers, one end of each of the levers. In addition, a roller is provided to support the conveying bar, and the lifting bar, which is moved up and down by the lifting drive device, is moved in the same direction by following the movement of the lifting bar. A transfer device for a press, characterized in that the transfer device is connected to the lever so as to be attached to the lever. (2) The press 1 to launcher device according to claim 1, wherein the elevating bar has a variable elevating stroke by an elevating drive device. (3) The press transfer device according to claim 1 or 2, wherein the roller is made of a polymeric material.

Claims (3)

[Claims] (1) For a press having a yρ transport bar having a holder that holds and releases a processed product, a lifting device for this transport bar, and a reciprocating drive device that reciprocates the transport bar in its longitudinal direction. In the transfer device, the lifting device has at least two rotatably supported levers, and one end of each lever is provided with a □-lar that supports the conveying bar, and the lifting device has at least two rotatably supported levers. A transfer device for a press, characterized in that an elevating bar that moves up and down by the device is connected to the lever so that the roller moves up and down in the same direction following the up and down movement of the elevating cost bar. (2) A special FI characterized in that the elevating bar has a variable elevating stroke by the elevating drive device.
Range of R-seeking I! 11. A press transfer device according to item 1. (3) The roller is made of a polymeric material.
For presses described in Section 1~Lanceforce' [1゜