JPH078099Y2 - Shhaling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a shearing machine provided with a conveyor for supporting a work to be sheared so as to be vertically movable and a back gauge for setting a cutting length so as to be movable back and forth. It is about.

(Prior Art) Conventionally, in a shearing machine that shears a thin plate (workpiece) such as a metal, a fixed lower blade is horizontally provided on a table supporting the work, and a ram provided with a movable upper blade is lifted and cut. It is common.

By the way, in the case of shulling machines, for example,
It is usual to provide a conveyor or the like for supporting the work in the portion projecting backward from the table as in 61-191818 and JP-A-59-47117.

When the work is sheared by the upper blade and the lower blade, the movable upper blade must be lowered below the corresponding fixed lower blade, and the cut work (product) is also pushed by the movable upper blade. Since it descends, it is necessary to move the work unloading conveyor to a position temporarily lower than the pass line.

First, in order to make it easier to understand, the overall configuration of the conventional shearing machine will be described. The shearing machine 1 has a base plate 3, left and right side plates 5, 7, a front plate 9, as shown in FIG. The work table 11, beam member 13, etc. are assembled into a gate-shaped structure.
A fixed lower blade 15 is provided at the rear portion, and a plate pressing device 17 is provided at the lower end of the front plate 9.

Between the beam member 13 and the front plate 9, there are an upper guide roller 25 and a hydrolysis guide roller 27 which are rotatable around a ram structure 19 and eccentric shafts 21 and 23 planted in the side plates 3 and 5. It is provided.

The front plate 9 has a pressing roller 31 for pressing and biasing the ram structure 19 backward (to the right in FIG. 3) by a disc spring 29.
Is provided so that the urging force can be adjusted freely, and these rollers 25, 27,
A sliding plate 33 is attached to a portion where 31 comes into contact with and contacts the ram structure 19.

The slab provided on the front side of the ram structure 19 is the ram 35.
A movable upper blade 37 is attached to the lower part of 35.

Below the ram structure 19, as shown in FIG.
A horizontal rotary shaft 39, whose both ends are supported, is rotatably provided at 5, 7, and the rotary shaft 39 is driven by a drive motor, a belt, a flywheel, a clutch, etc. (not shown). The eccentric plate 43 locked by the key 41 is rotated on the rotating shaft 39.

Due to the rotation of the eccentric plate 43, the connectine rod 45 swings up and down, and the ram structure 19 is driven up and down via a shaft pin 47 provided near the lower end of the ram structure 19.

A balance cylinder 51 is provided between the beam member 13 and a shaft pin 49 provided in the middle of the ram structure 19, and a drive for raising and returning the ram structure 19 to the connecting rod 45 is performed. I am helping.

On the rear side of the fixed lower blade 15 (right side in FIG. 3), a reverse plate pressing device 53
Is provided. When the ram 35 descends, this device is pushed down by the movable upper blade 37 while sandwiching the plate material cut between the ram 35 and the movable upper blade 37.

In the shearing machine 1 shown in FIG. 3, the back gauge device 55 is constructed as follows. I.e. ram 35
An electric motor 59 is provided on a base 57 projecting rearward (rightward in FIG. 3) from the rear surface, an output shaft 61 thereof is guided to the rear end, and a lead screw 65 extending forward in a gear box 63 is rotated. It is a composition.

Further, a nut member 67 screwed with the above-mentioned lead screw 65.
Is supported by the base 57 so as to move back and forth, and a rocking member 69 as a vertically moving member having a triangular shape is mounted on the both sides of the base 57 so as to be vertically rockable by a shaft 71. There is.

Rolling wheels 73 are provided on the upper part of the swinging member 69 and ride on guide rails 75 provided on the lower surface of the base 57 on both sides of the base 57, and the back gauge 77 is perpendicular to the pass line PL of the work W. The desired position can be included by advancing and retracting while being kept at.

In the illustrated example, the dog 79 is received at two places on the guide rail 75, and when the rolling wheel 73 rides on the dog 79, the swing member 73 swings around the shaft 71 to move the back gauge 77. This is a configuration in which the work W is flipped up to a position higher than the pass line.

[Problems to be solved by the device]

In the conventional configuration as described above, the back gauge 77 must be moved to the position of the dog 79 in order to bounce up from the pass line, which is a problem in improving efficiency.

[Means for Solving the Problems]

In view of the above-mentioned problems, the present invention provides a ram provided with an upper blade that shears the work in cooperation with a lower blade provided on a work table that supports a plate-like work, and the ram is movable up and down. In order to adjust the cutting length of the workpiece by abutting the rear end of the workpiece supported by the conveyor, and a vertically movable conveyor supporting the workpiece behind the shearing position by the blade and the upper blade The shingling machine is provided with a back gauge movably in the front-rear direction, and a base extending rearward is provided on the rear side of the ram so as to be vertically movable relative to the ram. The back gauge is attached to an up-and-down moving member that is vertically movably supported on a substrate movably supported in the front-rear direction, and an operating device for vertically moving the up-and-down moving member is attached to the substrate. It will be.

〔Example〕

The shearing machine 1 according to the present invention, as schematically shown in FIG.
Is oscillated up and down around the axis of the drive roller 83, and the upper surface of the belt conveyor 85 is configured to be oscillated downward with the pass line PL as an upper limit.

Further improvements to the back gauge device 55,
Regardless of the position of 77 in the front-rear direction, it is configured so as not to interfere with the work W that is carried out by swinging upward at an arbitrary position.

FIG. 1 shows an example of the embodiment, in which a horizontally projecting bracket 87 is provided at the rear of the ram 35, and a pressing member 89 depending from the bracket 87 is provided so as to match the axis of the driven roller 81.

Although not shown, the driven roller 81 is a belt conveyor.
The upper surface of 85 is constantly urged by a bullet or the like to a position where the upper limit is the pass line PL of the work W. As the ram 35 descends, the driven roller 81 is synchronously resisted against the urging force. Then, it swings downward as shown in FIG.

The bearing block 91 of the driven roller 81 is provided with a fluid pressure cylinder 93 between the bearing block 91 and the base plate 3 in addition to the urging device described above. A belt conveyor for reversing the conveyor 85 to drop it between the reverse pressing device 53 and the driven roller 81 and carrying it out below the work table 11 by the chute plate 95.
Used to maintain 85 downhill.

Further, the bearing block 91 is provided with an end material support plate 97, and as shown in FIG. 1, it is positioned on the pass line PL when cutting and supports the rear end of the end material, and when it falls, the drive roller 83 side. It occupies a position where it does not interfere with the fall of the end material by rotating to.
(Driving mechanism is not shown) As shown in FIG. 2 in the embodiment of the present invention, the belt conveyor
Both the 85 and the lower surface of the back gauge 77 are provided with comb-shaped concave and convex portions in their cross-sections, and the convex portions enter the concave portions of the mating parts so that the protrusions are relatively movable in the groove. There is.

Since the upper end of the convex portion of the belt conveyor 85 is aligned with the pass line PL, the lower end of the convex portion of the back gauge 77 is located slightly lower than the pass line PL, so that the work progresses under the back gauge 77 and is positioned. Will not be inaccurate.

Next, the portion related to the back gauge 77 will be described with reference to FIGS. 1, 4, and 5.

The pack gauge device 55, which is a part of the present invention, has its front end (the left end in FIGS. 1, 4 and 5) relatively up and down via a shaft 101 near the front end of a brace 99 protruding rearward from the ram 35. It is provided on a base 57 that is swingable.

The base 57 is a lower shaft 10 of link members 105, 105 which are swingable on shafts 103, 103 planted in the side plates 5, 7 at the center of the length thereof.
Since the base 57 is supported by 7,107, as shown in FIG. 4, depending on the height position of the ram 35, the base 57 swings vertically from the upper left to the upper right relative to the horizontal position.

Behind the above-mentioned base 57, the output shaft 61 driven by the electric motor 59 and the gearbox 63 as described in FIG.
The rotation is transmitted to the lead screw 65 via a pair of driving and driven gears 109.

The rear end of the lead screw 65 is naturally supported in the gear box 63, and the tip of the lead screw 65 is slidable in the axial direction of the slide sleeve 111 at the tip of the base 57 as shown in FIG. It is provided in.

As shown in FIG. 6, the lead screw 65 constitutes the piston 115 of the fluid pressure cylinder 113 in the gear box 63, and the work W is abutted against the back gauge 77 to press the plate holder shown in FIG. After fixing it on the work table with the device 17, activate the fluid pressure and back gauge for a certain size.
This is to retreat 77 together with lead screw 65.

Retracting the back gauge at the time of cutting described above prevents the work W from being subjected to the rolling action at the time of cutting and extending to the rear by a small amount and curving with the back gauge 77.

In FIG. 4 and FIG. 6, a portion indicated by a chain double-dashed line behind 115 indicates a position where the piston 115 is projected and moved rearward. Even if the piston 115 is projected rearward, a pair of gears 109 and 109 are formed. One of the drive gears 109 has a sufficient gear width so that the engagement relationship is maintained.

Next, referring to FIGS. 7, 8 and 9, the device for flipping up the back gauge 77 1
Explain 17

In the vicinity of the front end of the base 57, as described with reference to FIG. 4, the base 57 can be swung up and down relative to the brace 99 of the ram 35 via the shaft 101, and in the middle, from the side plates 7 and 9 to the shaft 103. , Link member 1
05, Lower shaft 107 is swingably suspended.

As shown in FIG. 5, for example, the bases 57 of the same size and the same shape are provided in parallel, and the lead screws 65 are provided at the centers of the bases 57 as shown in FIG.

In the case of the present embodiment, the base 57 is assembled in an inverted U-shape, two parallel guide plates 119 are provided at the bottom of the base 57 at regular intervals, and a nut member 121 screwed with the lead screw 65 is formed. The board 123 holds the ride plate 119 and is slidable in the longitudinal direction (front-back direction).

A shaft 1 provided near the rear end of the board 123 in a direction orthogonal to the base 47
25 is provided, and the trapezoidal swing plate 127 (which is the swing member 69 in the general description) is used as the vertical movement member for the shaft 125.
It is swingable up and down.

The column portion 129 of the base 57 extends forward of the guide plate 123 at the most advanced position and is connected to the front end of the place 99 by the shaft 101.

As can be seen most clearly in FIG. 9, the swing plates 127 on both sides have back gauges 77 fixed to both ends via arm members 131.

As shown in FIG. 7, a fluid pressure cylinder 133 forming a part of an actuator 117 for vertically moving the swing plate 127 is fixed to the upper surface of the substrate 123.

The plunger 135 of the fluid pressure cylinder 133 is driven by fluid pressure between the cylinder caps 137 and 139 to move horizontally. 8 and 9 show the state in which the piston 135 is located at the most front end.

Inside the swing plate 127 on the right side when viewed from the front end of the shearing machine 1, there is a roller shaft that penetrates the swing plate 127.
A roller 143 which is freely rotatable is provided around 141, and the roller 143 rides on the guide plate 119 and keeps the back gauge 77 at a constant height parallel to the pass line PL.

Further, from the wall portion on the right side of the fluid pressure cylinder 133 viewed from the front of the machine, there is provided a roller 147 that is freely rotatable around a roller shaft 145 planted in the wall body, and The height is regulated.

The wall portion on the left side of the fluid pressure cylinder 133 when viewed from the front of the machine is provided with the horizontal elongated hole 149 shown in FIGS. 8 and 9, and further, on the left side of the swing plate 127 described above. As shown in FIG. 9, for example, 15
An elongated hole 151 that is inclined downwardly is provided.

Plunger 135 described above has two slots 149 and 15 described above.
A shaft 153 is planted so as to penetrate through 0, and rollers 155 and 157 are respectively provided rotatably in the portions where the shaft 153 penetrates the two elongated holes.

The inner one of the two rollers 155 and 157 provided on the one shaft 153 serves also as a stopper for the plunger 135 and contacts the lower side of the elongated hole 149 to move horizontally in synchronization with the plunger 135. Then swing plate 127 and back gauge device 55
It supports the weight of such as.

On the other hand, the roller 157 on the outer side is inscribed in the slanted long hole 151, and even if the roller 157 moves horizontally, it swings the swing plate 127 around the shaft 125 to bounce the back gauge device 55 upward from the pass line PL. To do.

With the above configuration, the substrate 123 can be moved in the front-rear direction along the base 57 by rotating the lead screw 65, and the back gauge 77 can be positioned. Further, by reciprocating the plunger 135 of the fluid pressure cylinder 133 to move the roller 157, the slanted long hole 151
The rocking plate 127 and the back gauge 77 are moved up and down by the engagement of the roller 157 that moves up. Therefore, the back gauge 77 can be lifted, and even if the work is long, it can move on the conveyor 85, and avoids contact with the product immediately even when the product after shearing is carried out in the backward direction. can do.

[Effect of device]

As will be understood from the above description of the embodiments, in summary, the present invention cooperates with the lower blade (15) provided on the work table (11) for supporting a plate-shaped work to shear the work. A ram (35) equipped with a blade (37) is provided to be movable up and down, and a conveyor (85) for supporting the work is movable up and down behind the shearing position by the lower blade (15) and the upper blade (37). A shearing machine provided with a back gauge (77) for adjusting the cutting length of the work by abutting the rear end of the work supported by the conveyor (85) so as to be movable in the front-rear direction. A pedestal (57) extending rearward on the rear side of the ram (35) is provided so as to be vertically movable relative to the ram (35). A vertically movable member (127) movably supported on a substrate (123) movably supported by Wherein provided is attached to the back gauge (77), in which an actuator for vertically moving the vertically movable (127) formed by mounting the substrate (123) on.

As is apparent from the above-described configuration, in the present invention, the base 57 provided on the rear side of the ram 35 for vertically movably supporting the back gauge 7 moves up and down relative to the ram 35. The back gauge 77 is freely provided, and the back gauge 77 is provided so as to be vertically movable with respect to the substrate 123 supported by the base 57 so as to be movable back and forth.

Therefore, according to the present invention, in order to position the back gauge 77 on the work on the conveyor 85 by positioning it, even if the back gauge 77 is almost in contact with the upper surface of the conveyor 85, the work on the conveyor 85 passes through. In the case of permitting the above, it suffices to actuate the actuating device to move only the back gauge 77 slightly upward, which is extremely easy to handle.

Further, when there is a risk that the pack gauge 77 interferes with the conveyor 85 due to the large lowering of the ram 35, the back gate 77 is moved upward if necessary, and the base 57 is moved relative to the ram 35. It can be easily dealt with by moving up.

[Brief description of drawings]

FIG. 1 is a side view showing the whole embodiment of the present invention, FIG. 2 is a sectional view of a belt conveyor, FIG. 3 is a side view of a general shearing machine, and FIG. 4 is an enlarged side view of the embodiment of the present invention. Figure,
5 is a plan view of FIG. 4, FIG. 6 is a sectional view taken along the line VI-VI of FIG. 5, FIG. 7 is a sectional view taken along the line VII-VII of FIG. 5, and FIG. FIG. 9 is a plan view of FIG. 5 taken along the line IX-IX in FIG. (Explanation of the symbols that show the main parts in the figure) 1 …… Shearing machine 11 …… Work table 15 …… Lower blade 35 …… Lam 37 …… Upper blade 87 …… Conveyor 89 …… Pressing member 77 …… Pack gauge 57 …… Base 123 …… Substrate 127 …… Vertical movement member (swing plate)

Claims (1)

[Scope of utility model registration request] 1. A ram (35) having an upper blade (37) for shearing the work is moved up and down in cooperation with a lower blade (15) provided on a work table (11) for supporting a plate-shaped work. A conveyor (85) which is freely provided and supports the work at the rear of the shearing position by the lower blade (15) and the upper blade (37), is vertically movable, and is supported by the conveyor (85). A back gauge (77) for adjusting the cutting length of the work by abutting the rear end of the ram (35) is provided on the rear side of the ram (35) in the rear direction. An extended base (57) is provided so that it can move up and down relatively to the ram (35), and it moves up and down on a board (123) supported on the base (57) so as to be movable in the front-rear direction. The back gauge (77) is attached to a vertically movable member (127) which is freely supported, A shearing machine, characterized in that an operating device for moving a material (127) up and down is mounted on the substrate (123).