JPS632186Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a material feeding device for a press machine, and more specifically, to an improvement of a device for feeding blank sheets one by one to a press machine by a magazine feed device. .

In conventional blank magazine feeding devices for press machines, it was necessary to prepare magazines according to the shape and dimensions of the product. Some models were equipped with elongated holes to allow for some adjustment, but they had the disadvantage that the magazine positioning tool easily rotated in the tightening direction when tightening the screws.

In addition to the above-mentioned improvements to the magazine part, the present invention also includes improvements such as linking with the pusher to lift and feed the blank with a simple mechanism, and also to eject the processed product, making it easy to adjust. This device has the advantages of easy maintenance and low cost.

A detailed explanation will be given below based on the drawings.

In FIGS. 1, 2, and 3, the material supply device generally indicated by 1 is the material supply device of this embodiment, and similarly, the machine base section is generally indicated by 3, the magazine section is indicated by 5, and 7 For convenience of explanation, it is divided into a pusher section indicated by , an adsorption conveyance section indicated by 9, and a three-dimensional drive section indicated by 11.

The machine base part 3 has a frame body 17 on a machine base 15 equipped with four vertically adjustable casters 13, and the frame body contains ordinary pumps and control equipment. , there is a handle 19 that adjusts the height of all the upper devices up and down, and a wide support 21 near the front end of the machine base that moves up and down. There is a device that becomes immovable once the position of the entire device is determined using a leveling screw or the like that protrudes further downward, and the handle 19 is also equipped with a device that becomes immovable.

The front and rear of this device refer to Figure 1.
The left side of Figure 2 is the front, the right side is the rear, and the left is the first
The upper side of the figure refers to the side where the three-dimensional drive unit 11 is located on the right side of Figure 3, and the opposite side is referred to as the right side.The explanation will be given in terms of the front, back, left, and right when looking at the device from the position of the press that feeds out the blank. .

A board 23 is firmly fixed horizontally on the column 21, a pusher section 7 and a magazine section 5 are provided on the right side, a three-dimensional drive section 11 is provided on the left side, and a three-dimensional drive section 11 is bent at a right angle in front of the three-dimensional drive section. , a suction conveyance section 9 is provided in a space in front of the magazine section 5.

The pusher portion 7 has thick plates 25 and 2 at the front and rear.
6. The left and right sides are surrounded by channels 27, two left and right guide bars 29 are fixed in parallel at the same height between the front and rear planks, and a fluid pressure cylinder 31 is fixed in the center of the rear plank 26 so as to protrude rearward. , whose piston rod 33 passes through the rear plank 26 and is connected to a slide block 37 via a connector 35. The slide block 37 is driven by the piston rod 33 and guided by the guide bar 29 on the left and right sides to move back and forth. Further, a connecting plate 39 is fixed to the upper surface of the slide block 37, extends rearward through a notch in the rear thick plate 26, and connects the upper and lower clamping plates 41 at the rear end.
Depending on the left and right width of the blank, one push plate 43 is held in the center, or two push plates 43 are spaced apart from each other on the left and right sides. The extending length can be adjusted with bolts on the clamping plate. A stopper 45 comprising an elastic body is provided at the front and rear ends of the guide bar 29, which defines the forward and backward ends of the slide block and also has a buffering effect.

The base of the magazine section 5 and the suction conveyance section 9 covers the front thick plate 25 and the channels 27 on both sides with the front half, and the bracket 4 provided on the front thick plate 25 covers the front half of the base.
A slide plate 49 is supported by 7 and fixed horizontally. The slide plate 49 is connected to the push plate 4 over its entire length in the front-rear direction.
Three flat grooves 51 are dug in which the grooves 3 slide and move, and approximately 1/4 of the entire front length of the flat grooves is
A cutout groove 53 is formed through the thickness of the plate. This cutout groove 53 is for moving and fixing a blank stopper 55 that restricts the forward end when the blank is pushed by the push plate and placed in the suction conveyance section. In addition, flat groove 51
When the push plate 43 moves inside, the top surface of the push plate is set to be lower than the thickness of blanks stacked on the slide plate in the magazine section, which will be described later, and higher than the top surface of the slide plate.

Moreover, the front and rear edges of the slide plate 49 are chamfered so as to widen upward, and in contrast, the slide plate 49 has two left and right sides each having a dovetail groove forming portion on the lower surface.
A book blank guide bar 57 is provided on the slide plate so that its left and right positions can be changed and fixed. As is clear from FIG. 2, the blank guide bar 57 has a wedge-shaped block fixed at its tip, and its rear end consists of a flat plate and a razor.If the thumb bolt 59 is loosened, the entire blank guide bar 57 can be moved. It is movable left and right on the slide plate 49. That is, the interval between the blank guide bars 57 in the left-right direction is adjustable according to the width of the blank.

The thumb bolt 59 serves to pull up the razor of the blank guide bar and at the same time fixes the push plate holding bar 61. The push plate holding bar 61 has an elongated hole and is configured so that the position of the lower pressure member 63 that presses the push plate downward can be selected in the left and right direction, so that the long push plate warps up just before it comes into contact with the blank. The mission is to regulate the situation so that it does not occur.

Furthermore, a T groove 65 is provided in approximately 60% of the rear portion of the blank guide bar 57.
A protruding flat angle 69 protruding below the magazine base block 67 is fitted into the groove and is slidable, and the T-bolt is pulled up and fixed in position by a thumb nut 71. The magazine base block 67 is the first
As is clear from the figure, there are four angles 73, each with an angle 73 held inside, and blanks stacked in the area surrounded by the angle 73.

Next, the three-dimensional drive unit 11 will be explained.

The three-dimensional drive unit is the slide block 37 described above.
It is firmly attached to the left side of the block and moves back and forth as one with the slide block.

In FIGS. 4, 5, and 6, a three-sided framework is formed by a side plate 75 connected to the slide block 37, an opposing side plate 77, and a jointed top plate 79, as shown in FIG. A second fluid pressure cylinder 83 is fixedly mounted rearward on the connecting side plate 81 at the narrow portion below the side plates 75, 77, and a cam block 85 is attached to the piston rod thereof.

The cam block has guide grooves 87 on both sides, and guide blocks 8 provided on the side plates 75 and 77.
9 and is engaged and supported so as to be movable back and forth.

A swinging arm 91 is attached to the wide upper portions of the side plates 75 and 77 so as to be able to swing slightly around a shaft 93. The swinging arm 91 has a long channel-like bar shape with an open bottom, and as shown in FIG. 95, and when the swing arm 91 is at the upper limit of the swing, the swing arm 91 moves toward the substrate 2.
It is parallel to 3. As seen in FIGS. 4 and 6, a cutout window 97 is provided in the side plate 77 so that the cam follower can also be supplied with grease, and a block 99 is provided in the portion of the swinging arm 91 immediately after the cam follower. is fixed in the channel, and a spring 101 is stored between it and the side plate 77, so that the cam follower 95 is always in pressure contact with the cam block 85, and the ammunition stopper 103 is placed directly above the cam follower 95. This prevents the swinging arm from jumping up due to accidental interference during blank feeding.

The swinging arm 91 extends forward and has flat angles called left and right horizontal plates 105 fixed at right angles at a position beyond the magazine base block 67.
Two parallel rows of elongated holes are provided on the left and right horizontal plates, and two magnet mounting plates 107 extend in the front-rear direction.
The electromagnet 109 is held facing downward. Further, a product scooping plate 111 is provided diagonally forward and downward from the inclined chamfered portion of the front end of the magnet mounting plate 107 so that its extension length can be adjusted and fixed by means of an elongated hole.

Furthermore, the slide block 37 and the three-dimensional drive section 11
The upper and side parts are provided with a protective cover and an inspection window that can be opened and closed for dust prevention and work safety purposes, and a grease nipple is provided on the sliding part.

The device of this embodiment operates as follows.

83 at the signal that one processing cycle of the press is completed
The second fluid pressure cylinder starts operating, advances the cam block 85, lowers the cam follower 95, lowers the tip of the swinging arm 91, and activates the electromagnet 109, which is an example of an adsorption device.
It picks up the blank that was pushed out under the electromagnet last time.

Next, the hydraulic cylinders 31 and 83 are operated simultaneously to return the swinging arm to the horizontal position, while
When the slide block 37 is moved forward, the most advanced product scooping plate 111 moves forward while rising diagonally, pushes out the preceding product that has been processed forward, and carries the next blank attracted by the electromagnet to the processing position. , the push plate 43 performs three operations at the same time: pushing out the lowest one of the magazine section 5.

When a new blank comes into contact with the blank stopper 55, the slide block stops moving forward using a limit switch (not shown), lowers the swinging arm, demagnetizes the electromagnet, lowers the blank to the processing position, and moves the swinging arm to the processing position. While raising the slide block, the slide block is returned to the starting position and one material feeding operation is completed.

As described above, in this embodiment, the magazine section can be adapted to a wide range of widths and lengths according to the width and length of the blank, and the feed amount can be freely selected, and the blank can be moved in three dimensions with a simple mechanism. Not, but
Three-dimensional movement allows you to move forward or diagonally at the same time, and the mechanism is simple, so there are fewer failures.
This improvement has many advantages, including easy maintenance and low cost.

As can be understood from the following description of the embodiments, the gist of the present invention is as stated in the claims for utility model registration.According to the present invention, extrusion of blanks from the magazine section, With a simple configuration, three operations can be performed at the same time: suctioning the blank extruded from the machine and carrying it into the processing section of the press machine, and pushing out the blank that has already been processed in the processing section of the press machine.

Note that this invention is not limited to the above-mentioned embodiments, but can be implemented in other embodiments by making appropriate design changes. For example, the swinging of the swinging arm is not limited to a cam mechanism, but can be performed using a link mechanism or various other mechanisms.

[Brief explanation of drawings]

FIG. 1 is a plan view of the device. Figure 2 shows
This is a side view of the device, with a portion of the cover removed. FIG. 3 is a rear view of the device, with a portion of the cover removed to show the inside. FIG. 4 is a side view in the direction of the arrow in FIG. 3 with the cover removed. Fifth
The figure is a cross-sectional view taken in the direction of the - arrow in FIG. 4. FIG. 6 is a cross-sectional view taken along the - arrow in FIG. 4. Explanation of symbols of main parts in the drawings, 5... Magazine section, 7... Pusher section, 9... Suction conveyance section, 1
1... Three-dimensional drive unit, 29... Guide bar, 31...
...Fluid pressure cylinder, 37...Slide block,
43... Push plate, 49... Slide plate, 55... Blank stopper, 57...
Slide guide bar, 67...Magazine base block, 69...Protruding flat angle, 83...Second fluid pressure cylinder, 85...Cam block, 91...Swinging arm, 95...Cam follower, 105...Right and left horizontal plates, 107... Electromagnet mounting plate, 109... Electromagnet, 111... Product scooping plate.

Claims (1)

[Scope of utility model registration request] Slide plate 49 fixed on the substrate 23
Left and right blank guide bars 57 extending in the front-rear direction are provided on the top so that their positions can be adjusted and fixed in the left-right direction, and a magazine portion 5 for holding blanks in a stacked state is formed on each of the left and right blank guide bars 57. A push plate 43 that passes through the lower part of the magazine section 5 and pushes out the lowest blank to the front side is attached to a slide block 37 that is provided on the base plate 23 at the rear of the magazine section 5 so as to be movable back and forth. A swinging arm 91 is fixedly provided, and its base is supported by side plates 75 and 77 attached to the slide block 37 so as to be swingable in the vertical direction. ,
From the magazine section 5 to the push plate 43
A suction device 109 capable of adsorbing blanks pushed forward by the press machine is installed, and a product scooping plate 111 for pushing forward blanks that have already been processed in the processing section of the press machine is attached to the suction device. On the front side of 109, the swing arm 9
1, and includes a fluid pressure cylinder 31 for moving the slide block 37 back and forth, and a second fluid pressure cylinder 83 for swinging the swing arm 91. Features: Material supply device for press machines.