JPH0140592Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a material supply device that supplies secondary processing material to a processing machine such as a press machine.

Generally speaking, a device that supplies material to a processing machine such as a press should have a short overall length when installed on the front or side of the processing machine, and a gap should be effective when installed within the frame of the processing machine. A thin one is good for use. For this purpose, in the past, separate devices were prepared with specifications that matched the installation location.
However, if this method is used, there is a problem that the unit price is relatively high because it is not suitable for mass production.

This idea was made in view of these conventional problems, and by dividing the unit into two units, the transport unit and the lifting unit, and allowing flexibility in their assembly, it can be used as a device with a short overall length or with a thin thickness. It is an object of the present invention to provide a material supplying device that can be assembled evenly.

The illustrated embodiment will be described in detail below. 1st
The figure shows a state in which a material supplying device 1 according to an embodiment of this invention is installed in the front of a press machine 3. This material supply device 1 includes a control section 5, an idle stage 7, and a material conveyance section 9. This material conveying section 9 is a part that conveys the processed material 13 between the idle stage 7 and the work table 11 of the press machine 3, and is shown in detail in FIGS. 2 and below.

Referring to FIG. 2, this embodiment has a structure in which a transport unit 17 is assembled into a frame 15 inside the material transport section 9, and a lifting unit 19 is mounted on the front surface of the frame 15.

First, the configuration of the transport unit 17 will be explained. Two upper and lower guide posts 21 are installed horizontally within the frame 15, and a first moving block 23 and a second moving block 25 are slidably guided by the guide posts 21.

A vertical cam groove 27 is provided on the front surface of the first moving block 23.
is provided. Further, two cylinders 29 and 31 are attached to the second moving block 25 in opposite directions to each other, the plunger 33 of one cylinder 29 is connected to the first moving block 23, and the plunger 35 of the other cylinder 31 is connected to the first moving block 23. The lever 37 passes through one side block 15a of the frame 15.
is in contact with. A stopper 39 is attached to the other side block 15b.

Next, the elevating unit 19 will be explained. A cylinder support block 41 is attached to the front of the side block 15a of the frame 15, and a link support block 43 is attached to the front of the center portion of the frame 15. A link driving cylinder 45 as a second cylinder is fixed to the cylinder support block 41, and its plunger 47 faces one end of a lever 49. This lever 49 is fixed to a shaft 51, and as the plunger 47 moves, the shaft 51
Rotate 1. This shaft 51 also has a lever 5.
3 is also fixed, and the end of this lever 53 is connected to one end of a connecting rod 55.

A vertical guide post 5 is attached to the link support block 43.
7 is provided. A lift bracket 59 is slidably attached to the guide post 57 and is constantly urged upward by a spring 61. A guide table 63 is attached to the upper surface of the lift bracket 59, and an engagement pin 69 that engages with a lever 67 is provided on the protrusion 65 on the lower surface.

The connecting rod 55 is connected to one end of the lever 67 at its connecting portion 71, and transmits its horizontal movement to the lever 67 by converting it into a swinging movement.

The feed bar 73 has an arm portion 75 at one end, to which a material holding means such as a suction cup is attached. A guide rail 77 is fixed to the lower surface of this feed bar 73. This guide rail 77 is the lift bracket 5
It is supported by a guide table 63 on top of 9 so as to be horizontally slidable. Further, a roller cam 79 is attached to this guide rail 77, and this roller cam 79 fits into the cam groove 27 of the first moving block 23 in the transport unit 17.

With the above-described structure, the two cylinders 29 and 31 operate simultaneously in the transport unit 17, so that the second moving block 25 moves forward and backward relative to the side block 15a by being pushed or pulled by the plunger 35. At the same time, the first moving block 23 moves forward and backward relative to the second moving block 25 due to the movement of the first plunger 33. As a result, the first moving block 23 is moved horizontally along the guide post 21 at twice the speed of the movement of the plunger 33 until it abuts the stopper 39.

This movement of the first moving block 23 drives the roller cam 79 fitted in the cam groove 27, and the guide rail 79 is moved as shown by the arrow in FIG.
7. The feed bar 73 and arm portion 75, which are integral with the feed bar 73, are moved horizontally.

When the stroke of the first moving block 23 is shorter than the total stroke of both cylinders 29 and 31,
After the first moving block 23 comes into contact with the stopper 39 and is stopped, the plunger 35 of the cylinder 31 rotates the lever 37. This rotation of the lever 37 also causes the lever 53 to rotate via the shaft 51, pushing the connecting rod 55 in the horizontal direction. Also, lever 6
7 is rotated by this connecting rod 55. The rotation of this lever 67 is caused by the engagement pin 6
9, the vertical linear movement of the lift bracket 59 is converted and transmitted to the lift bracket 59 and the feed bar 73 engaged therewith.
is driven downward against the force of the spring 61 as shown by the arrow in FIG.

Conversely, the operation in Fig. 1 is for cylinder 2.
9 and 31 are driven in opposite directions. First, the plunger 35 of the cylinder 31 is pulled, so the lift bracket 5 is moved by the repulsive force of the spring 61.
9 and feed bar 73 are pushed up. The force at this time is applied to the lever 67, the connecting rod 55, and the lever 5.
3 to the lever 37, and the lever 37 returns to its original position.

Further, if the cylinders 29, 31 are reversely driven, both the first and second moving blocks 23, 25 are horizontally moved to their original positions, and the feed bar 73 and arm portion 75 move as indicated by the arrows in the figure.

Also, the feed bar 7 indicated by the arrow in the same figure
3 and the arm portion 75 are lifted and lowered by the lifting unit 1.
9. That is, when the cylinder 45 of the cylinder support block 41 is driven, the plunger 47 raises and rotates the lever 49, which in turn causes the shaft 5 to rotate.
1. It is transmitted to the connecting rod 55 via the lever 53. The lever 67 is rotated by the connecting rod 55 to raise and lower the lift bracket 59, and the feed bar 73 and the arm 75 to be raised and lowered as well.

In this way, the feed bar 73 and the arm section 75 first move as indicated by the arrows by the action of the conveying unit 17, and then move as shown by the arrow by the action of the lifting unit 19, moving the workpiece 13 between the idle stage 7 and the workpiece. It can be transferred to and from the table 11.

In addition, in the case of the lift bracket 59 and the feed bar 73 moving up and down, the feed bar 73
The roller cam 79 moves up and down within the cam groove 27 as the feed bar 73 moves up and down, and the vertical movement of the feed bar 73 does not affect the conveying unit 17. Conversely, when the first moving block 23 is moved horizontally by the drive of the transport unit 17, the guide rail 77 is driven horizontally by the engagement of the cam groove 27 and the roller cam 79. However, during this horizontal movement, the guide rail 77 slides on the guide table 63 and does not affect the movement of the lift bracket 59.

3 to 6 show other embodiments,
A lifting unit 19 is incorporated into the side surface of the transport unit 17. In this embodiment, parts given the same reference numerals as those in the above embodiment have the same functions. The feature of this embodiment is that a cylinder support block 41 and a link support block 43 are provided on the sides of the side blocks 15a and 15b of the frame 15, and a connecting rod 55, a feed bar 73, and a guide rail 77 are arranged on the front surface of the frame 15. It is the composition.

Even in this embodiment, there are two cylinders 29, 3.
1 moves the feed bar 73 in the horizontal direction, and the other cylinder 45 moves the levers 49, 5.
3. Connecting rod 55 and lever 67, engagement pin 6
9, the lift bracket 59 and feed bar 73 are moved in the vertical direction.

Examples of the use of both of the above embodiments will now be described with reference to FIGS. 7 to 10. First, when the material supply device 1 is installed and used on the front of the press machine 3 as shown in Fig. 7a or on the side of the press machine 3 as shown in Fig. 7b, the transfer unit is 17 and a lifting unit 19 are combined in the front and back to form a structure similar to the first embodiment of this invention. That is, in the same figure, if the transport unit is A, and the lifting units are B and C (here, the B unit includes the lift bracket 59, and the C unit includes the link support block 43 and the lift bracket 59).
), it is possible to incorporate the B and C units in front of the A unit.

When the material supply device 1 is installed on the bolster of the press machine 3 as shown in FIG. 9, it is desired that the front and rear parts be thin, so the B unit is installed on both sides of the A unit as shown in FIG. , C unit can be incorporated.

As can be understood from the above description of the embodiments, the gist of this invention is as stated in the claims for utility model registration. A roller cam that engages with the cam groove 27 is provided on the front side or side of the frame 15, which is provided with a movable moving block 23 having a cam groove 27 and a reciprocating device for reciprocating the moving block 23. A lift bracket 59 supporting a feed bar 73 having a feed bar 79 so as to be movable in the material supply direction is provided so as to be movable up and down, and a link support block 43 equipped with a link device for moving the lift bracket 59 up and down and the lift bracket 59 are operated to raise and lower. A support block 41 equipped with an elevating actuating device for lifting and lowering is freely mountable, and the elevating actuating device and the link device are operatively connected by a connecting rod 55.

That is, in the present invention, the frame 15, the link support block 43, and the support block 41 can be treated as separate assemblies, and the link support block 43 and the support block 41 are connected to the frame 1.
It can be attached to the front or side of the 5.
Therefore, according to the present invention, the overall structure can be made short or thin depending on the mounting position of the material supply device with respect to the press machine 3.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of one embodiment of this invention, Fig. 2 is a partially exploded perspective view of the material conveying section of the same, Fig. 3 is a plan sectional view of another embodiment, and Fig. 4 is a front view of the same. , FIG. 5 is a sectional view taken along the - line in FIG. 4, FIG. 6 is a sectional view taken along the - line in FIG. 1...Material supply device, 15...Frame body, 17...
Conveyance unit, 19... Lifting unit, 21...
Guide post, 23...first moving block, 25
...Second moving block 27...Cam groove, 29,3
1...Cylinder, 33, 35...Plunger, 3
7...Lever, 39...Stopper, 45...Cylinder, 47...Plunger, 49...Lever, 5
1... shaft, 53... lever, 55... connecting rod, 59... lift bracket, 61... spring, 67... lever, 73... feed bar,
75...Arm part, 77...Guide rail, 79
...Roller cam.

Claims (1)

[Scope of utility model registration request] The material feeding device supplies material to the press 3, and the moving block is provided with a vertical cam groove 27 in a frame 15 extending parallel to the material feeding direction in the material feeding device. 23 is provided so as to be able to reciprocate in the material supply direction, and a reciprocating motion device for reciprocating the moving block 23 is provided, and this link is attached to the link support block 43 which can be attached to the front or side of the frame 15. A link device is provided for vertically moving a lift bracket 59 which is provided on the support block 43 and is movable up and down and biased upward, and a feed bar is provided with a material holding portion at the tip and supported by the lift bracket 59. 73 is provided so as to be movable in the material supply direction, and a roller cam 79 provided on the feed bar 73 is provided to engage with the groove 27 of the moving block 23 so as to be movable up and down, and can be mounted on the front or side of the frame 15. The support block 41 is provided with an elevating actuator for elevating and lowering the lift bracket 59, and the elevating actuating device and the link device are connected via a connecting rod 55 so as to interlock with each other. Material supply device.