JPS6021196Y2 - Device to prevent misalignment of laminated paper to be cut in a cutting machine - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for preventing displacement of laminated sheets to be cut in a cutting machine.

The applicant had previously applied for an invention to automate the work process of a cutting machine and was granted a patent (Patent Publication Showa Kaihei 2424K).
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By the way, in this automatic cutting machine, the front part of the laminated paper to be cut is pressed down from above during cutting by a presser comb arranged on the rear side of the cutting blade.

For this reason, paper that has strong curls, such as laminated cut paper that is cut and stacked from rolled paper,
If the paper is cut continuously, the surface layer of the paper will crumble forward, making it impossible to obtain accurate finished dimensions.

In this cutting machine, a paper receiving mechanism C provided therein corrects the misalignment of the laminated paper to be cut through the cut paper pieces.

However, in order to push back the displaced paper in the horizontal direction, the paper receiving mechanism C may not function sufficiently because the paper has a large frictional resistance.

Therefore, in order to solve these problems, we proposed a device to prevent paper from slipping in a cutting machine.

This invention will be described below with reference to embodiments shown in the drawings.

In this specification, front and back and right and left refer to FIG. 2, with the upper part of the figure being the rear and the lower part being the front, and the left and right correspond to each other.

In the drawing, the cutting machine includes a paper feeding mechanism A equipped with a feeding comb 4 that intermittently pushes the laminated paper to be cut 2 placed on a table 1 by a predetermined length to a cutting position in front, and this feeding comb 4. The rear end 2a of the laminated paper 2 to be cut is arranged near the front side of the
A paper presser mechanism F includes a vertically movable presser plate 57 and a driving means 58 for the presser plate 57, which presses the sheet from above; A cutting mechanism B including a presser comb 5 and a cutting blade 6 disposed near the front side thereof and movable up and down for cutting the front end 2b of the laminated paper 2 to be cut to a predetermined width; and a cutting mechanism B disposed in an upright manner in front of the cutting position. A pair of left and right swingable paper trays for receiving both front corners of the laminated paper to be cut 2 is a mechanism C, and a paper tray is provided with a left and right movement mechanism 8 for moving these pieces closer to each other and away from each other. The receiver is located near the front of the piece 7, and the discharge conveyor D is arranged in the front-rear direction so that it is located between them, and the laminated and cut conveyor placed on the special equipment section 1a provided at the rear right side of the table 1. The feeding mechanism E includes a pusher 9 that feeds the paper 2 to the front side of the feeding comb 4.

In the paper feeding mechanism A, 10 is a holding base that holds the feeding comb 4, and the base 4a of the feeding comb 4 is attached to the tips of two connecting rods lea that are provided in a protruding manner on the front end surface of this holding base. .

Reference numeral 11 indicates a threaded cylinder provided on the lower surface of the holding base 10 via a connecting portion 11a, and reference numeral 12 indicates a slit provided in the rear half of the table 1 in the front-rear direction.

Reference numeral 13 denotes a threaded rod arranged below and in parallel with the slit 12. The connecting portion 11a is guided on the inner surface of the slit 12, and the threaded cylinder 11 is screwed onto the threaded rod 13.

14 is a bevel gear attached to the rear end of the threaded rod 13, which is connected to the feed comb adjustment mechanism 1 disposed on the rear side of the table 1.
It is meshed with the bevel gear 16 of No. 5.

17 is a manual bundle of the feed comb adjustment mechanism 15;
Adjustment of the front and rear positions is manually performed using this bundle 17.

In the paper holding mechanism F, 57 is a vertically movable holding plate disposed near the front side of the feed comb 4 and presses the rear end 2a of the laminated paper 2 to be cut from above, and 58 is a driving means consisting of a cylinder. The presser plate 57 is attached to the front end of a presser plate attachment piece 59 provided at the tip of the cylinder rod 58a.

Reference numeral 60 denotes a mounting bracket for the cylinder 58, which is mounted on the front surface of the holding base 10 with screws or the like.

Reference numeral 61 denotes a holding plate mounting guide groove provided in the vertical direction of the mounting bracket, into which a protrusion 62 provided at the rear end of the side surface of the holding plate mounting piece 59 is fitted.

Reference numeral 63 denotes a notch that opens upward and is provided in the base 4a of the feed comb 4, and the presser attachment piece 59 is configured to move up and down within this notch 63.

In the cutting mechanism B, 18 is a comb tooth provided at the rear end of the presser comb 5, and the comb teeth 4b fit between the comb teeth 18 of the presser comb 5 when the feed comb 4 is in the most advanced position. It is done like this.

As a result, even if the remaining length of the stacked paper 2 to be cut is shortened, the feed comb 4 reliably pushes it to the cutting position.

The presser comb 5 and the cutting blade 6 are raised and lowered by a lifting mechanism (not shown).

The lower end of the cutting blade 6 is located above the lower end of the presser comb 5, and these lower at the same time, and the presser comb 5 first comes into contact with the front end of the laminated paper 2 to be cut, and cuts it from above. After pressing, only the cutting blade 6 further descends to cut the front end portion 2b of the laminated paper 2 to be cut.

Reference numeral 19 denotes a blade edge protector embedded in a position on the table 1 that the cutting blade 6 contacts when it descends, and its upper surface is flush with the upper surface of the table 1.

In the above-mentioned paper receiving mechanism C, the left and right moving mechanism 8 has a sliding plate 22
and a cylinder 24.

20 is a rectangular board mounted on the front end of the table 1 so as to be movable back and forth in the left and right directions; 21 is a mounting plate that is rectangular as seen from the plane; A sliding plate placed above this, 23
2 are two guide bars fixed to the upper portions of both side edges of the mounting plate 21 via brackets, and these guide bars guide the sliding plate 22.

A cylinder 24 is attached to the mounting plate 21 via a bracket 25, and the cylinder rod end of this cylinder 24 is attached to the sliding plate 22 via a connecting member 26.

The pair of paper receivers has an L-shape when viewed from above so that the pieces 7 respectively receive both front corners of the laminated paper 2 to be cut.

The paper receiver 27 is an L-shaped shatter-preventing piece attached to the upper end of the inner surface of the front wall of the piece 7 so that its height can be adjusted freely when viewed from the side. completed piece of paper 3
Its role is to prevent the particles from scattering.

Reference numeral 28 denotes a pair of shafts that pass through the rear ends of the pair of sliding plates 22 in the left and right directions, and the lower ends of the pieces 7 of the paper receivers are fixed to the inner ends of these shafts so that they can swing freely. being done.

Reference numeral 29 denotes a pair of stoppers fixed to the lower end of each paper holder piece 7, and these stoppers are provided with a fan-shaped trailing protrusion 29a having the size of a quarter of a circle when viewed from the side.

A pair of stopper pieces 30 are fixed to the rear end portions of the side surfaces of the left and right sliding plates 22 so as to face the stopper 29, and these pieces are provided with a semicircular stepped portion 30a when viewed from the side.

As a result, the pieces 7 of each paper tray are tilted only forward from the vertical position.

Reference numeral 31 denotes torsion springs wound around the left and right shafts 28, one end of which is secured to the sliding plate 22, and the other end of which is secured to a ring 32 in a spring receiver provided at the end of the shaft 28, respectively.

These springs 31 keep each paper tray piece 7 in a vertical state at all times.

In the above-mentioned discharge conveyor D, reference numeral 33 denotes endless belts disposed in pairs on the left and right sides of the table 1 in front of the cutting position;
4 is a starting end roller located below the table 1, 35
are terminal rollers attached to the front end surface of the table 1 via a bracket 36, and the two endless belts 33 are wound around these rollers 34 and 35, respectively.

Tension rollers 37 and 38 are arranged one after the other between the starting end roller 34 and the ending end roller 35;
Reference numeral 39 denotes a drive roller driven by a motor (not shown) disposed below the front end of the table 1, and is located between the front and rear tension rollers 37 and 38.

Reference numeral 40 denotes belt passing holes provided in two places on the left and right sides of the table 1, and the outgoing portion of the belt 33 passes through these holes 40 and emerges onto the table 1.

Reference numeral 41 denotes shallow grooves provided in the front and rear direction at two places on the left and right sides of the upper surface of the table 1, and the rear ends of these grooves communicate with the belt passage hole 40.

The belt 33 fits into the groove 41, so that the top surface of the table 1 and the top surface of the belt 33 are substantially flush with each other.

The conveyance speed of the conveyor belt 34 is set to be slightly faster than the extrusion speed of the feed comb 4, so that the laminated and cut paper pieces 3 discharged by the discharge conveyor D and the laminated paper to be cut 2 sent to the cutting position are separated. The paper holder is designed to provide a gap into which the piece 7 can be inserted.

In the laminated paper to be cut paper supplying mechanism E, 1a is a special part of the laminated paper to be cut 2 provided at the right rear half of the table 1;
Reference numeral 43 denotes a bracket disposed on the right side of the special equipment section 1a, on which a chino sprocket 44 is pivotally supported.

Reference numeral 45 denotes a bracket disposed at the left rear end of the upper surface of the table 1, and a chino sprocket 46 is pivotally supported on this bracket.

Reference numeral 47 denotes a guide bar disposed across the special equipment section 1a and the left rear end of the upper surface of the table 1, and both ends of the guide bar are fixed to the brackets 43 and 45, respectively.

42 is the button body of button 9 and this is the guide bar 4
It reciprocates between the special machine part 1a and the front side of the feed comb 4 while being guided by the feed comb 7.

Reference numeral 48 denotes a pushing arm whose base end is pivotally attached to the upper surface of the button body 42 so that it can freely swing. Reference numeral 50 is provided at the swinging end of the pushing arm 48 and approximately at the center in the length direction, and its lower end is normally These are two push pieces that are in contact with the top surface of the table 1.

Reference numeral 51 denotes a stopper provided at the base end of the pusher arm 48, so that when the pusher arm 48 is raised, the stopper 51 comes into contact with the upper surface of the pusher body 42, and the pusher arm 48 is placed in a position where it falls slightly backward from the vertical position. can be stopped.

Reference numeral 52 denotes a chain that is attached to the sprocket 44 and the sprocket 46, and both ends of this are connected to two protrusions 49 provided on the upper surface of the button body 42, so that the chain including the button body 42 has an endless shape. It is said that

53 is a pusher drive mechanism attached to the bracket 45.

Reference numeral 54 denotes a positioning member that determines the stop position of the laminated paper to be cut 2 that is fed to the paper feed mechanism A by the pusher 9. It is fixed to the tips of two horizontal rods 56.

In the above-mentioned cutting machine, the laminated paper to be cut 2 placed on the special section 1a of the table 1 is pushed by the busher 9 when the busher drive mechanism 53 of the supply mechanism E rotates in the forward direction, and is pushed by the paper feed comb of the paper feed mechanism A. 4, and one edge thereof is brought into contact with the positioning member 54.

In this way, when the laminated paper to be cut 2 comes into contact with the positioning member 54, a limit switch (not shown) is activated.
The button driving mechanism 53 rotates in the opposite direction, and the button 9 moves in the opposite direction and returns to its original position.

Note that the position of the positioning member 54 is adjusted in advance according to the size of the stacked sheets 2 to be cut.

The feed comb 4 of the paper feed mechanism A intermittently pushes the laminated paper 2 to be cut forward by a predetermined length to the cutting position, and in this way the laminated paper 2 to be cut reaches the cutting position.

In the paper holding mechanism F, prior to the above-mentioned extrusion, the cylinder 58 is activated and the paper holding plate 57 is lowered to hold the laminated paper 2 to be cut.
The rear end 2a of is pressed down from above.

When it is detected that the laminated paper to be cut 2 has reached the cutting position,
The presser comb 5 and the cutting blade 6 begin to descend.

A portion near the front end of the upper surface of the laminated paper to be cut 2 is pressed down from above by the presser comb 5, and then only the cutting blade 6 is further lowered to cut the front end portion 2b of the laminated paper to be cut 2 to a predetermined width.

In this way, when the laminated paper to be cut 2 is cut, the rear end 2a and the part near the front end are pressed down from above, and the paper is cut to a predetermined size without any deviation.

After the cutting process is completed, the presser plate 5 is moved by the operation of the cylinder 58.
7 is raised, and then the feed comb 4 is retracted.

On the other hand, both front corners of the laminated paper to be cut 2 are received by the pair of left and right paper receivers of the paper receiving mechanism C by pieces 7, and the stacked and cut paper pieces 3 are pushed forward by the thickness of the cutting blade 6. As a result, the piece 7 of the pair of paper holders is connected to the torsion spring 31.
It is tilted forward against the force of the explosion.

After the cutting is completed, the presser plate 57 of the paper presser mechanism F is moved to the cylinder 58.
It rises due to the operation of.

At the same time, when the presser comb 5 and the cutting blade 6 rise, the piece 7 of the paper receiver is raised by the elastic force of the torsion spring 31, and the laminated and cut paper piece 3 is pushed back to the front of the laminated paper to be cut 2.

Then, the pieces 7 of the pair of left and right paper receivers are separated from each other by the action of the cylinder 24 and the sliding plate 22 of the left and right moving mechanism 8, and are separated from both front corners of the laminated and cut paper pieces 3 to the outside, respectively.

Then, the push comb 4 of the paper feed mechanism A feeds out the laminated paper to be cut 2 for a predetermined length, and the laminated and cut paper pieces 3 are pushed forward from the cutting position and placed on the starting end of the discharge conveyor D. The pieces 7 of the paper receiver come close to each other and receive both front corners of the laminated paper to be cut again, and the laminated and cut paper pieces 3 are discharged as they are by the discharge conveyor D.

The position of the paper receiver mechanism C is adjusted in advance according to the size of the stacked sheets 2 to be cut.

Note that, on the terminal end side of the discharge conveyor D, for example, a packaging process or the like is arranged.

Since this invention has the above-mentioned configuration, it has the following effects.

That is, near the front side of the push comb 4 of the paper feed mechanism A, the rear end upper surface of the laminated paper to be cut 2 is pressed from above by the presser plate 57 of the paper presser mechanism 58, and the cutting position of the laminated paper to be cut 2 is The part near the front end is the cutting mechanism B.
The front end 2b of the laminated paper to be cut 2 is pressed from above by the presser comb 5, and in this state, the front end 2b of the stacked paper to be cut 2 is cut by the cutting blade 6. Therefore, dimensional errors do not occur in the laminated paper pieces 3.

Moreover, by simply providing the notch 63 in the base 4a of the feed comb 4 provided in the existing cutting machine, the paper presser plate 57 arranged on the front side of the feed comb 4 and the drive means 58 arranged on the rear side can be removed.
It is possible to easily connect them, and the cost of modification can be kept low.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view, FIG. 2 is a partially cutaway plan view, FIG. 3 is a right side view, and FIG.
The figure is an enlarged side view of the paper holding mechanism, Figure 5 is an enlarged sectional view taken along the line ■-■ in Figure 2, Figure 6 is an enlarged plan view of the paper receiver mechanism and discharge conveyor, and Figure 7 is Figure 6. FIG. 8 is an enlarged sectional view taken along the line 1--2, and an exploded perspective view of the stopper portion. 1... Table, 2... Laminated paper to be cut, 4... Feeding comb, 5... Presser comb, 6...
... Cutting blade, 57 ... Pressing plate, 58 ...
...Drive mechanism, A...Paper feed mechanism, B...
... Cutting mechanism, F... Paper holding mechanism.

Claims (1)

[Scope of utility model registration request] A paper feed mechanism A includes a feed comb 4 that intermittently pushes the laminated paper to be cut 2 placed on a table 1 by a predetermined length to a cutting position in front of the table 1 before the paper feed mechanism A operates. Paper to be cut 2 is laminated on the front side of the feed comb 4 from above the special section 1a.
Laminated cut paper feeding mechanism E equipped with a pusher 9 that supplies
Then, a presser comb 5 that can be raised and lowered presses down from above a portion near the front end of the upper surface of the laminated paper to be cut 2 that has reached the cutting position, and a presser comb 5 that can be raised and lowered to cut a predetermined location of the laminated paper to be cut 2 near the front side of the comb. A cutting mechanism B equipped with a cutting blade 6, a pair of left and right paper holders that can swing back and forth to receive the front side edges of the laminated paper 2 to be cut during cutting, and a pair of paper holders that can swing back and forth to prevent falling are separated into pieces 7, and after cutting is completed, these paper holders are moved to one side. The paper tray is equipped with a left and right moving mechanism 8 for discharging the pieces 7 to the left and right sides, and the paper tray is equipped with a mechanism C, and the pair of left and right paper trays is provided with a laminated and cut paper piece discharge conveyor D disposed near the front of the piece 7 and between them. In the machine, it is arranged near the front side of the feed comb 4, and the rear end portion 2 of the laminated paper to be cut is
It is equipped with a paper presser mechanism F that includes a vertically movable presser plate 57 that presses the sheet a from above and a drive means 5B for the presser plate 57,
A presser attachment piece 59 that connects the presser plate 57 and the drive means 58
is configured to move up and down within a notch 63 provided in the base 4a of the feed comb 4, and the presser plate 57 maintains a state in which it presses the rear end of the laminated paper to be cut 2 during the cutting process. A device for preventing displacement of laminated paper to be cut in a cutting machine, characterized in that: