JPH0641332B2 - Sheet feeding device for cutting machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet feeding device for a cutting machine that can reasonably perform an operation of feeding sheets such as paper to a cutting position.

Conventional technology / problems: Conventionally, the work of cutting a fixed-size sheet bundle into a required size with a cutting machine is possible because an operator carries or lifts up a bundle of sheets of paper to be handled. Since strong physical strength is required and the fatigue of the worker is severe, back pain often occurs when engaged in this type of work for a long time. Therefore, in order to avoid such extreme labor, use mechanical power,
A method is being adopted in which a laminated sheet is divided into a required amount and lifted or horizontally moved.

Means for making it possible to handle such a laminate of sheets (mainly paper) by mechanical force is known, for example, in JP-A-58-102699 and JP-A-58-224925. There is. However, in the case of such a method, mainly an elevating machine such as a table lift that raises the sheets such as paper laminated on the side of the cutting machine so that the required amount of sheets can be divided, and a sheet bundle divided by an air gun is cut. It is necessary to arrange a transportation assisting means for laterally moving to a required position in the aircraft. For an elevator such as a table lift, the arrangement space cannot be reduced in view of the stacking amount of the sheets to be loaded, but the divided sheet stack is laterally fed from the table lift onto the table of the cutting machine. The above devices require a relatively large footprint. Therefore, the equipment must be installed with a considerable allowance in the adjoining part of the cutting machine, which is often inconvenient in a factory with a small working space.

Further, in the conventional work arrangement, there is a problem in that the work operation range of the worker at the cutting position is widened and the work loss is increased accordingly.

Object of the Invention: The present invention solves various problems of the related art, and reduces the space for a sheet feeding device installed in the adjacent portion of a cutting machine,
Further, the sheet feeding device for the cutting machine is intended to reduce the work operation range of the worker and to perform the cutting work reasonably and efficiently without imposing a heavy burden on the worker.

According to the present invention, a fixed table, which is installed at a front side portion of a cutting machine and has an upper surface at the same level as a table surface of the cutting machine, a movable table which is laterally movable on the front side of the cutting table, and the fixed body are provided. The total area of the fixed table and the movable table is composed of a support beam projecting from the rear position of the table across both tables and projecting upward in the central part, and a seat clipper installed so as to be able to move back and forth along the support beam. Has a size capable of accepting the maximum width of the sheet to be handled, and the lateral movement table is configured to be capable of reciprocating from a fixed position to the front table front position of the cutting machine, and adjacent to the front position of this laminated sheet feeding device, Install a table lifter.

The clipper is vertically movably attached to a carrier that is guided by a guide shaft by a winding drive chain stretched along a support arm.

The fixed table for supply and the movable table are air carrier tables each having an air film formed on the upper surface thereof, and the movable table is adapted to run along the laid rails.

Example: The following is a detailed description of an example of the supply device of the present invention with reference to the drawings.

FIG. 1 is a plan view showing the most preferable positional relationship between the laminated sheet feeding device (1) of the present invention and the cutting machine (2). The cut sheet bundle set of the cutting machine (2) having a known structure. The fixed table (10) of the feeding device (1) is arranged at a position excluding the apron table on the left side of the position, and the movable table (15) can be laterally moved in front of the cutting machine (2). The table lift (5) is arranged further in front of the feeding device (1), and the cut sheet (A) layers stacked on the pallet or the like can be sequentially lifted with a size according to a division amount. It is becoming like this.

The supply device (1) has a structure as shown in FIGS. 2 to 4, and includes a fixed table (10) and a movable table (15).
A clipper support mechanism (20) for guiding and supporting the clipper (30) so that the clipper (30) can be moved forward and backward above the center lines of both fixed and movable tables, a frame (22) for supporting the base of the support mechanism (20), and It is composed of a base (21).

Thus, the fixed table (10) and the movable table (15) are provided on the upper part of the box-shaped frame body (11) so that the table upper surfaces thereof are arranged at substantially the same height as the table of the cutting machine (2). , And each table surface is configured as a known air carrier table. The total area of the fixed table (10) and the movable table (15) is set to a size that allows the largest size of sheets to be handled. The fixed table (10) is set such that its depth L is smaller than the depth L'of the movable table (15), and its front end is aligned with the front end of the table (2 ') of the cutting machine (2).

The movable table (15) with respect to the fixed table (10) is equipped with an air carrier table on the upper surface of the trolley (16) framed in a box shape, and along the rail (6) laid up to the front position of the cutting machine (2). It is now possible to traverse. This traverse drive motor (17) is installed inside the carriage (16) and
Power is transmitted to (18).

The clipper support mechanism (20) includes a base (21) directly connected to the rear of the frame pair (11) of the fixed table (10) and a beam support frame (22) standing on the upper surface of the rear end of the base (21). ), And a support beam that has its base end fixed to the support frame (22) and projects horizontally above the fixed table (10) and the movable table (15).
It consists of (23) and. The support beam (23) is made of a rectangular member, and the guide shafts (24) (2
4 ') are supported and installed in parallel. Such support beams (23)
On one side of the table, just move and fix the table (15) (1
As the clipper (30) moves back and forth along the center line of (0),
The clipper support carrier (25) is fitted with brackets (26) through bearings (26 ″) (26 ″) that slide on guide shafts (24) (24 ′) provided on both upper and lower surfaces of the support beam (23). (2
A carrier (25) is attached movably by 6 '). This carrier (25) is driven by a reduction motor (27) mounted on the frame (22) adjacent to the base end of the support beam (23), for example, a drive provided along the support beam (23). It is connected to the chain and moves back and forth.

The clipper (30) is a plate with two pairs of brackets (26) and (26 ') arranged at both ends so that the guide shafts (24) and (24') are supported by bearings (26 "). The upper half of the clipper main body (31) is attached to the side surface of the carrier (25) made up of so that it can slide in the vertical direction at the center, and the lower half of the main body (31) is widened to the front. When opened, the receiving jaw (32) is integrally formed at the lower end, and the gripping piece (33) is erected on the seat portion (31 ') provided in the middle part of the main body (31) and the piston rod (34) of the air cylinder (34). ′), So that the seat layer is gripped by the receiving jaw (32) and the gripping piece (33).
(30) is a reduction motor standing upright in the upper center of the carrier (25)
The screw shaft (29) connected to the output shaft of (28) is screwed into a female screw portion provided in the middle of the clipper body (31) to
It can be raised and lowered by driving (28).

In the figure, reference numeral (12) is a stopper for the sheet to be treated, which is erected at an appropriate height along the rear end of the fixed table (10), and the moving portion of the clipper (30) is notched. (3) is an air gun for dividing the sheet layer, which has a known structure. (4) is an air gun support arm, and the base is rotatably supported on the outer side of the fixed table (10) by the brackets (4 ') and (4'). Reference numeral (7) is a stretchable suspender for suspending the air gun (3) from the tip of the arm (4).

The traverse laying rails (6) of the moving table (15) are installed in a state of being sunk from the floor so as not to hinder the movement of the cutting operator. Further, the operation panel (8) of the supply device (1) is provided by a swing arm (9) so that it can be located at an appropriate position in the work action range for convenience of work.

The operation of the apparatus of the present invention thus configured is that the sheet to be processed (A) is preliminarily stacked and mounted on the table lift (5), and the table lift (5) is operated to perform a single cutting processing amount. Raise the height considerably. Separately divided air gun
Compressed air is supplied to (3), and this air gun
The sheet (A) layer on the table lift (5) is divided by the required amount by (3) (this operation is performed by a known means).
For the sheet layer divided by the air gun (3), the air ejected from the gun (3) flows into the gap of the divided portion to form an air layer, so press the gun (3) while inserting it into the sheet layer. The sheet layer divided by the feeding device
It is ready to move to (1) side.

In opposition to such an operation, the clipper (30) waits at its lowest position with its receiving jaw (32) and the gripping piece (33) open (see FIG. 5).

The sheet layer (A ') divided by the air gun (3) advances to the moving table (15) side of the supply device (1) by pushing it with the gun (3) inserted, so wait for this. The center of the front part is received on the receiving jaw (32) of the clipper (30) that is operating (For smooth operation of this kind, seats (5) loaded on the table lift (5) The position where A) is divided should be a height position that can be received by the clipper (30)). When a part of the sheet layer (A ′) divided into the clippers (30) in this way is received, then the air cylinder (34) for clamping is operated to lower the gripping piece (33), Receiving jaw (32)
The gripping piece (33) grips the central portion of the front end of the sheet layer (A ') received (see FIG. 6). Immediately after this operation, the deceleration motor (28) on the carrier (25) is driven to pull up the clipper (30) by an appropriate amount. Then, the seat layer (A ') with the central end held is in a state where the first half is lifted,
Starting the carrier (25) drive motor (27) activates the support beam.
When the carrier (25) is retracted along the line (23), the divided sheet layers (A ') are transferred onto the moving table (15) and the fixed table (10) of the feeding device (1). At this time, except for the gripped portion, it slides on the table (10) (15) by its own weight, but as described above, a known air film forming mechanism is incorporated in these table surfaces. Because there is
It is possible to make a smooth transition without receiving great resistance. And the stopper (1
When the sheet layer (A ') comes into contact with 2), the clipper (30)
Except for the gripping force, the clipper main body (31) is lowered, and the carrier (25) is retracted to the final retracted position (shown by the chain line (a) in Fig. 3) and stopped (see Fig. 7). ).

Thus, the sheet layer (A ′) sent to the feeding device is
As shown in FIG. 7, the fixed table (10) and the movable table (1
5) It is placed across and, and there is a moving table (15).
The drive motor (17) of the moving carriage (16) having the above is activated to traverse along the rail (6). By making the moving table (15) and the fixed table (10) receive a larger sheet layer (A ′) on the moving table (15) side, naturally both tables (10) ( As the load acting on (15) is different, when the moving table (15) starts traveling, the part received on the fixed table (10) keeps its posture and starts moving together with the moving table (15). Then, as shown in FIG. 8, it is carried to the front part of the cutting machine (2). of course,
It is well known that an air film forming mechanism is provided on the table of the cutting machine (2), and accordingly, a part of the sheet layer (A ') can be slid from the fixed table (10) without any trouble. You can move and move. The traverse end point of the moving table (15) is controlled by a limit switch or the like provided in advance, and the carriage (16) stops at a fixed position.

In this way, if the sheet layer (A ′) is transferred to the front table (2 ′) of the cutting machine (2) without manual labor, the operator can cut the sheet layer (A) from the moving table (15) side. The sheet layer (A ') is transferred onto the front table (2') of the above, and the moving table (15) is returned to its original position.

After that, the sheet layer (A ') is set on the table of the cutting machine (2) according to the cutting work, and the cutting work is performed. The product obtained after the cutting work is the side table on the opposite side (right side in the figure).
Slide it on (2 ″) and move it to the position of the next step.

It should be noted that the table lift (5) is operated so as to lift the sheet for the next sheet supply while the sheet layer after such division is moving. If such an operation is programmed in advance in the electric control mechanism so that each part operates in a predetermined order, the operation can be smoothly performed. of course,
The clipper (30) is also returned to the next receiving standby position while the divided sheet layers are transferred to the cutting machine.

Thereafter, the above-mentioned operation is sequentially repeated to perform cutting work.

In the above-described embodiment, the feeding device is arranged on the left side of the cutting machine, but the arrangement can be reversed and the feeding device can be operated similarly.

EFFECTS OF THE INVENTION As described above, according to the device of the present invention, the sheet supply to the cutting machine, which has conventionally been hard labor by hand, is performed manually by the dividing operation and the set operation by the cutting machine. Others can be moved and supplied by a machine, so that an operator can work without being overloaded. The sheet layer to be cut can be smoothly moved from the position directly next to the cutting machine to the set position to the cutting machine by taking the shortest distance to be directly supplied. In the prior art, mechanical force is used. Therefore, the installation area of the supply device was increased, and therefore the work space was narrowed, but it was possible to attach it as a device that can reasonably supply in a small space without impairing workability. , And many other winning advantages.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an embodiment of the cutting apparatus of the present invention, which is installed side by side, FIG. 2 is an overall side view of the present invention apparatus, and FIG.
FIG. 4 is a plan view, FIG. 4 is a right side view of FIG. 2, and FIGS. 5 to 8 are views showing an operating mode. (1) …… Layered sheet feeding device, (2) …… Cutting machine (3) …… Air gun, (5) …… Table lift (6) …… Rail, (15) …… Moving table (10)… … Fixed table, (17) …… Transverse drive motor (16) …… Car, (21) …… Base (20) …… Clipper support mechanism, (23) …… Support beam (22) …… Beam support Frame, (25) …… Carrier (24) (24 ′) …… Guide shaft, (28) …… Clipper lift motor (26) (26 ′) …… Bracket (27) …… Clipper forward / backward drive motor ( 30) …… Clipper, (31) …… Clipper body (32) …… Receiving jaw, (33) …… Gripping piece (34) …… Gripping air cylinder (A) …… Seat, (A ′)… ... Divided sheet layers

Claims (1)

[Claims] 1. A fixed table installed on the front side of a cutting machine, the upper surface of which is at the same level as the table surface of the cutting machine, a movable table which is laterally moved in front of this, and the fixed table. It consists of a clipper support beam projecting from the rear position above both the fixed and movable tables, and a sheet clipper provided so as to be movable back and forth along the support beam. A sheet feeding device for a cutting machine, characterized in that the sheet has a size that can be accommodated by the maximum size of the sheet to be handled, and the moving table is configured to be capable of reciprocating from a fixed position to a position in front of the cutting machine.