JPS63260792A - Automatic making dividing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic thickening machine that can thinly slice processed materials such as sponges and soft foam boards with high precision and high efficiency.

[Conventional technology]

As a machine for cutting processed materials such as leather in half, a manually operated machine having a structure as shown in FIG. 8 is already known. That is,
In this half-cutting machine, when a processed material 102 such as leather placed on a supply table 101 is pushed in the direction of the arrow, a gauge roll 103
The workpiece 102 is gripped by the and segment rolls 104 and cut in half by the front knife 105. Adjustment of the thickness of the upper half (grain side) is as follows:
This is done by adjusting the height position of the gauge roll 103 using the handle 106.

[Problem that the invention seeks to solve]

However, the above-mentioned half-cutting machine has a problem in that it cannot automatically cut processed materials such as rubber plates and soft foam plates into thin layers in many layers with high thickness accuracy. There is a need for early development of a high-performance automatic dark side machine.

Means for Solving Problems c] The automatic darkening machine of the present invention was invented in response to the above-mentioned needs, and the workpiece is placed on a support belt having an uneven rough surface and moves forward and backward repeatedly. A belt conveyor, a pair of left and right swinging arms that are vertically swingable and bearing support rolls that support the center part of the support belt of the belt conveyor, and height-adjustable swinging arms that are disposed parallel to and above the support rolls. When the presser roll and the belt conveyor are retracting, the support roll is lowered, and when the belt conveyor is moving forward, the support roll is raised to a position higher than the position of the support roll during the previous forward movement by the thickness of the row side of the workpiece. The gist of the present invention is to have a structure that includes an eccentric cam that swings a swinging arm up and down, and a knife that is wound between a pair of left and right knife booths with the cutting edge positioned in the gap between the presser roll and the belt conveyor. It is something.

〔Example〕

Hereinafter, one embodiment of the automatic darkening machine of the present invention will be described in detail based on the drawings.

FIG. 1 is a perspective view of the automatic darkening device of the present invention, and FIG. 2 is a perspective view of the main parts thereof.

In the figure, reference numeral 1 indicates a base, and on this base 1, a belt conveyor 2, a pair of left and right knife boots U35, 35, and other various members are mounted.

This belt conveyor 2 is composed of a driving roll 2a at the front end, a driven roll 2b at the rear end, frames 2d and 2e before and after a support roll 2C1 at the center, a support belt 2r, and the like. That is, the driving roll 2a at the front end is mounted between bearing members 2g on both sides of the front edge of the front frame 2d, and the driven roll 2b at the rear end is supported by bearing members 2h on both sides of the rear edge of the rear frame 2e.

On the other hand, the center support roll 2C has its roll shafts at both ends connected to bearing members 2i, 2i on both sides of the front edge of the rear frame 2e, and a pair of left and right swing arms. It is supported by bearing members 2j, 2j on both sides of the rear edge of the front frame 2d.

The support bell 2f has an uneven surface to reliably prevent the workpiece placed on it from slipping, and the belt 2r is designed to cover both the front and back of the front and rear frames 2d and 2e. It is wound between a driving roll 2a at the front end and a driven roll 2b at the rear end, and its center portion is supported by a support roll 2C.

Further, the above-mentioned rear frame 2e, as shown in FIG.
A pair of left and right circular eccentric cams 4 (however, the fifth
In the figure, only one circular eccentric cam is shown). Therefore, by rotating the cam 4, the inclination angle of the rear part of the belt conveyor 2 from the support roll 2C, that is, the feeding angle of the workpiece, can be adjusted. It can be adjusted freely. The circular eccentric cam 4 is configured such that when a handle (not shown) provided at the back of the base 1 is turned, the shaft 4a rotates and a desired rotation angle can be set. On the other hand, the front frame 2d has bearing members 2g on both sides of the front edge, and the rollers 2 and 2k are attached to the legs extending downward from the 2g in a height-adjustable manner, and the rollers 2 and 2k are mounted on the base l. Projection slope 1
It is supported by being placed on A and LA so that it can be moved freely.

A pair of left and right swinging arms 3.3 bearing the support roll 2C of the middle man of the belt conveyor 2 are connected to the left and right side walls 1 of the base l by means of support shafts 3b, 3b at the rear end of each arm.
b and lb (see FIG. 1), and the center portion of the arm is supported by a pair of left and right circular eccentric cams 5.5. Therefore, when the cams 5, 5 are rotated, the swing arm 3.3 swings up and down around the support shafts 3b, 3b, and the support roll 2c moves up and down accordingly, and the belt conveyor 2.
is bent vertically around the central support roll 2C. This circular eccentric cam 5.5 can be switched between manual and automatic mode; in the case of manual mode, when the handle 6 shown in FIG. It is configured so that it can be adjusted to a desired rotation angle, and when switched to automatic, it is rotated by a motor (not shown) built into the side wall 1b of the base 1. The operation of the cam 5.5 in the automatic case will be described later.

Further, above the support roll 2C of the middle shaft of the belt conveyor 2, a presser roll 8 for pressing down the workpiece is disposed, and is supported by the end bearing portions of a pair of left and right support arms 9.9.

The support arm 9.9 has support shafts 9a, 9a at its center portions.
It is always in contact with the upper circular eccentric cam 10.10 by the tension springs 9b, 9b at the rear end.

Therefore, by swinging the support arm 9.9 up and down by the rotation of the cam 10.10, the height of the presser roll 8 can be freely adjusted.

Incidentally, when the handle 11 shown in FIG.
0a rotates and can be set to a desired rotation angle.

The belt conveyor 2 as described above is equipped with a drive system as shown in FIG. 2, and is driven by a motor Ml. That is, the sprocket 12 of the output shaft of the motor Ml
A chain 15 is connected between the sprocket 14 of the transmission shaft 13 and the sprocket 14 of the transmission shaft 13.
The gear 16 of the transmission shaft 13 is connected to the second gear 1 rotatably fitted to the support shaft 9a of the support arm 9.
It meshes with 7. A chain 20 is wound between a sprocket 18 provided integrally with this second gear 17 and a sprocket 19 attached to the shaft of the presser roll 8. Furthermore, this second gear 17 meshes with a third gear 21 rotatably fitted on the support shaft 3b of the swing arm 3, and a sprocket 22 integrally provided with this third gear 21 and a support roll 2C. A chain 26 is connected between one sprocket 23 attached to the shaft of the support roll 2C, and between the other sprocket 24 attached to the shaft of the support roll 2C and the sprocket 25 attached to the shaft of the drive roll 2a.
．． 27 is suspended. Therefore, motor Ml is
When it rotates clockwise in the figure, the presser roll 8 rotates counterclockwise, the drive roll 2a, support roll 2C, and slave fm roll 2b rotate clockwise, and the support belt 2f moves forward, causing the motor to rotate. When M1 rotates in the opposite direction, the support belt 2r moves backward.

Adjustment of the moving distance of the support belt 2f is carried out using a reference position mark 29 formed on the support belt 2f of the belt conveyor 2 and a distance mark 30 that determines the moving distance, as shown in FIG.
a, 30 b, 30 c and belt conveyor 2
A detector 28a such as a light sensor installed on the back side of the
28b and 28c. That is, when the upper running portion of the support belt 2r is moved forward as shown by the arrow X by the motor M1 with the detector 28a in the ONL state, the distance mark 30a approaches the detector 28a, and the detector 28a When the motor Ml reaches directly above the motor Ml, the detector 28a detects this and stops the motor Ml. As will be described later, when the downward movement of the swing arm 3.3 by the circular eccentric cam 5.5 is completed, the motor M
1 is reversely driven, and the support bell) 2f moves backward.

When the reference position mark 29 reaches directly above the detector 28a due to the backward movement of the support belt 2f, the detector 28a detects this and stops the motor M1 again, and as described later, the circular eccentric cams 5, 5 start shaking. When the lifting operation of the movable arm 3.3 is completed, the motor Ml is driven in reverse again to move the support belt 2f forward.

Thereafter, in the same manner, the support 2f is moved forward and backward repeatedly over a short moving distance from the reference position mark 29 to the distance mark 30a. Similarly, if the detector 28b is used, the support p l-2f is the reference position mark 29.
With the normal moving distance from to the distance mark 30b,
Furthermore, if the detector 28C is used, it will move forward and backward repeatedly over a long distance from the reference position mark 29 to the distance mark 30C. Therefore, if the detector to be used is selected according to the length of the workpiece, Moving forward and backward is repeated with a moving distance suitable for the workpiece. In this example, three detectors are installed and the moving distance is 3.
Although the moving distance is changed in stages, it goes without saying that the moving distance may be changed in multiple stages by increasing the number of detectors, if necessary.

When the support belt 2f repeats forward and backward movement in this way, the support belt 2f will meander left and right significantly unless the drive roll 2a, driven roll 2b, and support roll 2c are completely parallel. In order to prevent this, this belt conveyor 2 is equipped with a driven roll 2 at the rear end as shown in FIG.
One of the bearings 2h (the left bearing in the figure) of b is used as a movable bearing, and the movable bearing 2h is connected to the hydraulic cylinder 31, and detectors 32, 32 such as optical sensors are installed on both sides of the rear edge of the rear frame 2e. It is installed and controlled as follows. That is, when the support belt 2f meanderes slightly to the left as shown by the dashed line, the left detector 32 detects this,
Based on the signal, the hydraulic cylinder 31 is actuated to cause the movable bearing 2h to protrude. When the movable bearing 2h protrudes in this manner, the tension on the left edge of the support belt 2r increases, causing the support belt to meander slightly to the right. When detected by the right detector 32, the hydraulic cylinder pulls in the movable bearing 2h based on the signal, thereby causing the support bell 2f to meander slightly to the left again. Thereafter, by repeating this, the support belt 2f repeats forward and backward movements while slightly meandering around the center without meandering significantly left and right.

The belt-shaped knife 33 that flies the workpiece is attached to pulley boxes 34, 34 on both sides of the belt conveyor 2, as shown in FIG.
It is wound around a pair of left and right knife pulleys 35, 35 built into the. This knife 33 has a brazed cutting edge made of a carbide material such as high-speed steel, and the cutting edge of the knife running on the upper side is positioned as desired just before the gap between the presser roll 8 and the heald conveyor 2. The edge of the knife is surrounded by a protective sheath 36. This protective sheath 36 is made up of two metal plates stacked one above the other, and both ends of the protective sheath 36 are fixed to a receiving base 37, 37 with bolts or the like.

The above knife pulley 35 is driven by a motor M2. That is, the sprocket 39 of the output shaft of this motor M2 and the sprocket 38 of the shaft of the drive side knife pulley 35 (the left pulley 35 in FIG. 1) are connected by a chain 41 within the cover 40, When driven, the knife pulleys 35, 35 rotate and the band-shaped knife 33 rotates. And, when the cutting edge of the band-shaped knife 33 runs on the lower side,
As shown in FIG. 5, it is configured to be polished by a pair of upper and lower polishing rollers 42°42.

In addition, in FIG. 1, 43 is the knife pulley 35 on the driven side.
44 is a control display panel, and 45 and 46 are covers that respectively cover the aforementioned belt conveyor driving chains 15 and 27.

Next, the operation of the automatic dark side machine of the present invention having the above configuration will be explained in the fifth section.
This will be explained with reference to FIGS. 7 to 7.

FIG. 5 shows a case where the automatic thickening machine is in a free state. In this state, first, by operating the handle 11, the circular eccentric cam 10 is rotated in the direction of arrow A, and the support arm 9 is rotated in the direction of arrow B. As shown in FIG. The position of 8 is displayed on the control display panel 44 as follows.That is, one end of a belt 48 wound around a pulse encoder 47 is fixed to this support arm 9 as shown in FIG. ,
Since the elastic spring part 49 at the other end of the belt 48 is fixed at a proper position on the base 1, when the support arm 9 rotates in the direction of arrow B as described above, the spring part 49 shortens and the belt 48 moves in the direction of arrow C, the pulse encoder 47 counts the length of movement, and the value converted to the height of the presser roll 8 is displayed on the control display panel. Therefore, it is possible to easily and accurately adjust and set the position of the presser roll 8 while looking at this display.

When the position N of the presser roll 8 has been adjusted in this way, the circular eccentric cam b is rotated in the direction of the arrow by operating the handle 6, and the swinging arm 3 is rotated in the direction of the arrow E, so that it is supported as shown in FIG. The gap between the support belt supported by the roll 2C and the presser roll 8 is adjusted and set to match the thickness of the workpiece W. At this time, the position of the support roll 2C is displayed on the control display panel 44 in the same manner as the presser roll 8. That is, as shown in FIG. 5, this swing arm 3 has a belt 51 wound around a pulse encoder 50
One end of the heald 48 is fixed, and the elastic spring portion 52 at the other end of the heald 48 is fixed at a proper position on the base 1, so when the swing arm 3 rotates in the direction of arrow E as described above, the spring portion 5
2 is extended, the heald 48 moves in the direction of arrow F, the pulse encoder 47 counts the length of movement, and the value converted to the height of the support roll 2C is displayed on the control display panel. . Therefore, it is possible to read the position of the support roll 2c from this display and easily adjust the gap between the support bell 2f and the presser roll 8. When the initial setting is completed in this manner, the initial position of the support roll 2C is stored in the sequencer. The row side thickness dimension is also stored. If necessary, it is preferable to adjust the inclination angle of the rear frame 2e of the belt conveyor 2, that is, the supply angle of the workpiece W, to the optimum angle, taking into consideration the dark side of the workpiece W. This adjustment is effected by rotation of the circular eccentric cam 4 as described. When the table preparation is completed, the circular eccentric cam 5 of the swing arm 3 is automatically switched, the knife pulley 35 is rotated by the motor M2, the strip knife 33 is rotated, and the rubber plate or soft foam is rotated as shown in FIG. A detector 28a described for placing a workpiece W such as a plate at a predetermined position behind the support belt 2f of the belt conveyor 2, and controlling the moving distance of the belt conveyor 2 according to the length of the workpiece W; Select the most suitable one among 28b and 28c,
The belt conveyor 2 is driven by the motor M1. As a result, the presser roll 8 rotates counterclockwise in FIG. 6, the drive roll 2a, driven roll 2b, and support roll 2C of the belt conveyor 2 rotate clockwise, and the support belt 2r rotates as shown by arrow G. The workpiece W moves forward, is held between the presser roll 8 and hits the knife 33, and the upper layer of the workpiece W is sliced to a predetermined row-side thickness dimension.
be done. At this time, the workpiece W is held between the presser roll 8 and the uneven rough surface of the support belt 2f without any positional deviation, so that the row side is carried out smoothly and there is no variation in the thickness dimension.

When the first row side of the workpiece W is completed, the selected detector 28a, 28b or 28C moves to the distance mark 3 as described above.
0a, 30b or 30C is detected and motor M1 is stopped. At the same time, the circular eccentric cam 5 is rotated counterclockwise by a motor (not shown) as shown in FIG. 7, and the swinging arm 3 is rotated downward as shown by arrow H to lower the support roll 2C. let When the downward movement is finished, motor Ml
is reversely driven, and the workpiece W is smoothly retreated in the direction of the arrow (■) without hitting the presser roll 8 while being placed on the support bell (2f).

When the reference position mark 29 comes directly above the detector 28a, 28b or 28c and is detected due to the retreat of the support belt 2f, the motor M1 stops again, and at the same time the circular eccentric cam 5 is moved by a motor (not shown). rotate clockwise,
Rotate the swing arm 3 upward. At this time, as the swing arm 3 rotates, the belt 49 moves in the direction of arrow F as shown in FIG.
counts and reads the position of the support roll 2c.

When the support roll 2c reaches a position higher than the initial dark side position by the row side thickness dimension, the motor is stopped and the circular eccentric cam 5 is stopped at the same rotation angle.

Therefore, in this state, the gap between the presser roll 8 and the belt conveyor 2 matches the thickness of the workpiece W to be processed in the second row. In this case, as the eccentric cam for operating the swing arm 3, a circular eccentric cam that moves smoothly and can be easily adjusted wI is used, so that the position of the support roll 2c can be adjusted extremely accurately.

When the second position setting of the support roll 2c by the circular eccentric cam 5 is thus completed, the motor M1 is driven in reverse again, the belt conveyor 2 moves forward, and the second row side of the workpiece W is performed.

Thereafter, in the same manner, when the belt conveyor 2 moves backward, the support roll 2c lowers, and when the belt conveyor 2 moves forward, the support roll 2c lowers.
c rises to a position higher than the previous position by the row side thickness dimension, and the workpiece W is thickened into many layers with an accurate straining thickness dimension.

In the above embodiments, the belt conveyor carrying the workpiece is automatically moved forward and backward for slicing, but the present invention is not limited to such a processing method. It is also possible to make it move only forward and slice it one after another. Moreover, it goes without saying that it may also be used as a half-am where a processed material is half-loaded.

〔Effect of the invention〕

As is clear from the above explanation, the automatic thickening machine of the present invention has excellent properties such as being able to automatically thin and thicken processed materials such as sponges and soft foam boards into many layers with high thickness dimensional accuracy. It is highly effective and can efficiently perform row side work with just one worker per machine, so it is extremely advantageous from an economic perspective, such as reducing labor costs, and is highly practical to fully meet the needs of the industry.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an automatic darkening device according to an embodiment of the present invention;
Fig. 2 is a perspective view of the belt conveyor, Fig. 3 is a plan view of the rear part of the belt conveyor, Fig. 4 is a perspective view illustrating control of the moving distance of the heald conveyor, Figs. 5, 6, and 7. 8 is an explanatory diagram of the main part of the automatic thickening machine of the present invention, and FIG. 8 is an explanatory diagram of a conventional half-cutting machine. - (Explanation of main symbols) 2... Belt conveyor, 2C... Support roll, 2f... Support belt, 3... Swing arm, 5... Eccentric cam, 8... Presser roll, 33...knife, 35...knife pulley, W...processed material. Patent applicant Sakura Engineering Co., Ltd. Agent
Patent Attorney Hiroyuki GyudonFigure 3Figure 4

Claims (1)

[Claims] (1) A belt conveyor that repeatedly advances and retreats by placing workpieces on a support belt with an uneven rough surface, and a pair of left and right vertically swingable belt conveyors bearing support rolls that support the center portion of the support belt of the belt conveyor. a swinging arm, a height-adjustable presser roll disposed parallel to and above the support roll, and the support roll lowers when the belt conveyor retreats, and the support roll in front of it when it moves forward; An eccentric cam that swings the swinging arm up and down, and a cutting edge that is aimed at the gap between the presser roll and the belt conveyor, so that the support roll rises to a position higher than the position of the workpiece by the thickness of the workpiece. An automatic strainer and splitter characterized by comprising: a knife wound between a pair of left and right knife pulleys;