JPS6339035Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a band saw machine for cutting meat, fish bodies, and other frozen foods (hereinafter also simply referred to as materials), which is attached to the material placement table of the band saw frame. This invention relates to a cutting thickness adjustment device.

In this kind of conventional bandsaw machine, as shown in FIGS. 7 and 8, a material stop plate 3 for adjusting the cutting thickness is attached to a fixed table 2 of the frame 1, and a material feeding table 4 is attached to the fixed table 2 of the frame 1. Material M placed on top,
While it is pressed against the stop plate 3, it is fed by the table 4 and is cut to a constant thickness W together with the band saw 5 which is circulating.

As is clear from both figures, the stop plate 3 is
A shaft cylinder 7 at the base end of the slide guide shaft 6 is slidably fitted onto a slide guide shaft 6 which is fixed and horizontally mounted on the fixed table 2, and a free end side extending at right angles to face the fixed table 2. pressure receiving surface 8
A screw handle 9 is adapted to receive the material M, and the adjusted state of the slide is pressed from the shaft cylinder 7 to the circumferential surface of the guide shaft 6.
It is designed to be positioned and fixed.

However, due to its structure, the material restraining plate 3 only has one screw handle 9 at its base end.
Therefore, during the cutting operation in which the material M is pressed against the pressure-receiving surface 8 of the stop plate 3 and fed in the direction of the band saw 5 as described above, the stop plate 3 Not only is it likely to move back unexpectedly, but it is also likely to swing from its free tip side. As a result, the cutting thickness W of the material M becomes irregular or non-uniform, or the cut surfaces become non-parallel, and especially when the material M is sliced to a fixed size, the cut thickness W becomes irregular or non-uniform. Despite the fact that high accuracy is required, this results in a significant deterioration of its commercial value.

Therefore, as a preventive measure against the above-mentioned retreat, it is conceivable to make the shaft cylinder 7 of the material restraining plate 3 as long as possible to increase the friction area where it fits with the slide guide shaft 6. Since the length of the guide shaft 6 is a predetermined dimension, the slide stroke of the stop plate 3 relative to this length becomes short or short, and the material M can be placed while maximizing the material placement space on the fixed table 2. So-called rough cutting or rough cutting cannot be performed effectively.
In other words, when the length of the slide guide shaft 6 is kept constant, the adjustment margin for the material cutting thickness W is extremely narrowly restricted, especially when downsizing the band saw machine itself. It can also be a disadvantage.

Furthermore, even if the fitting friction force is strengthened as described above, the material restraining plate 3 will still be in a so-called cantilevered state only at one location at its base end, and therefore its freedom will be reduced. Pressure receiving surface 8 from the tip side
It is inevitable that the situation will fluctuate.

The present invention is intended to fundamentally improve such defects, and its specific configuration will be explained in detail based on the illustrated embodiment.The material cutting thickness adjusting device is shown in Figs. 7 and 8 above. 1st to 6th extracted and expanded by comparison
In the figure, reference numeral 10 denotes a fixing base made of aluminum alloy or the like, which consists of an elongated mounting seat 11 of a certain length, and a pair of left and right ears 12 that continuously extend forward and at right angles from both ends of the mounting seat 11. The mounting seat 11 is a fixed table 1 in the band saw frame (no particular difference from the conventional example shown in Figs. 7 and 8).
It is joined to the bent front wall portion of No. 3 and is detachably fixed by bolts 14 and nuts 15.

Reference numeral 16 denotes a slide guide shaft made of a round bar of metal such as stainless steel, which is horizontally suspended between the two ear pieces 12 in parallel with the mounting seat 11, and is extended from the two ear pieces 12 to the guide shaft 16. They are removably assembled and fixed by bolts 17 screwed into the ends of each. Reference numeral 18 denotes a material restraining plate capable of sliding along the axial direction of the guide shaft 16 and undulating rotation around the guide shaft 16, and a relatively short shaft forming the base end thereof. Tube 19 and
It is provided with a pressure receiving surface 20 that extends continuously from this point in a direction perpendicular to the axis of the guide shaft 16 and faces onto the fixed table 13 for placing the material.

Then, the shaft cylinder 19 is fitted onto the guide shaft 16, and is operated into the fixed state for the sliding and rotational actions by means of a screw handle 21 which is screwed into the shaft and presses the circumferential surface of the guide shaft 16. It is becoming more and more like this. In other words, the material restraining plate 18 as a whole is mounted and supported in a so-called cantilever state with respect to the guide shaft 16. In that case, in the example shown, the pressure receiving surface 20 on the free end side is formed continuously and integrally with the shaft cylinder 19, but a separate stainless steel plate or the like may be joined to the pressure receiving surface 20 in such an example. Moreover, by connecting and fixing with bolts, spot welding, etc., the steel plate or the like may serve as a smooth pressure-receiving surface, so to speak, to directly receive the material M. In any case, it is conceivable to integrate a film material M, which is excellent in sanitary effects, onto the pressure receiving surface 20, or to perform a surface treatment for the same purpose.

Reference numeral 22 denotes a tensioning arm that tensions the pressure-receiving surface 20 of the material restraining plate 18 from its back to prevent it from retreating. It is installed as follows, so that it intersects with the two when viewed from above.

That is, 23 is the pressure receiving surface 2 of the material restraining plate 18.
0 mid-height position, and the countersunk screw 24
It is a connecting plate that is removably fixed by
One end of the tension arm 22, which is curved in an arch shape when viewed from above with respect to the plate surface, is connected to the guide shaft 16.
By means of a pivot pin 25 perpendicular to the axis of
The arm 22 itself is assembled so as to be freely rotatable. Reference numeral 26 designates an elongated guide hole for defining the rotation angle range θ of the arm 22 around the pivot pin 25, and is formed through the connecting plate 23 in the form of an opening drawing a circular arc locus.

Reference numeral 27 denotes an operation screw 27 that is installed in the middle of the tension arm 22 in parallel with the pivot pin 25, and includes a bolt 28 fixed to the arm 22 and a cap nut screwed and fastened to the bolt 28. 2
9, the bolt 28 of which always remains engaged with the guide elongated hole 26. Of course, the nut 29 can be held with the fingertips and moved forward and backward relative to the bolt 28.

The other end of the tension arm 22 is extended diagonally downward so as to cross the slide guide shaft 16, and has a two-pronged fork-shaped lock so that it can straddle the circumferential surface of the guide shaft 16 from above. base 3
It is set as 0. The plate surface of the locking base 30 is substantially parallel to the pressure-receiving surface 20 of the material restraining plate 18, and can lock the guide shaft 16 from above in a detachable manner.

In other words, as shown in a simple schematic form in FIG. 6, the tension arm 22 when viewed from above,
Point A at one end is the pressure receiving surface 20 of the material restraining plate 18.
Similarly, point B at the other end is supported by the guide shaft 16, and point C at the base end of the stop plate 18 is supported by the guide shaft 16, and the axis of the guide shaft 16 is also supported by the guide shaft 16. Since the pressure receiving surface 20 of the material restraining plate 18 and the pressure receiving surface 20 of the material restraining plate 18 are perpendicular to each other,
A virtual line segment L1 linearly connecting the above three points A, B, and C,
The contour shape defined by L2 and L3 will be generated as a right-angled triangle. The arm 22 is conceptually configured to extend to form the hypotenuse of a right triangle. Furthermore, the maximum line segment L3 that forms the hypotenuse
Rather, they are intersected in the form of an arch that projects outward in a convex curved shape, and supports the pressure receiving surface 20 of the material restraining plate 18 in tension from its back, thereby absorbing the material borne by the pressure receiving surface 20. It is designed to be able to resist the pressing force of M.

Moreover, as described above, the tension arm 22 is a separate and independent member from the material restraining plate 18 and the guide shaft 16, so it is more flexible in assembly than a physical integral structure. Alternatively, the non-rigidity of the tensioning action can be effectively exhibited, and the locking base 30 at the other end can be connected to the guide shaft 16.
Not only is it easy to lock the arm 22 in the middle of cutting, but even when the pressing force of the material M acts on the pressure receiving surface 20 of the restraining plate 18 during cutting, the arm 22 can find the most stable thrusting posture. As the material moves, it is kept in a mutually bound state with the material restraining plate 18 and the guide shaft 16, generating a strong counterforce against the above-mentioned pressing force, and reliably preventing the restraining plate 18 from retreating. It can be done. Paradoxically speaking, this means that even if it were assumed that the operation screw 27 was loosened slightly, the thrust resistance force exerted by the arm 22 would not decrease excessively.

Further, a separate forked fork-shaped adjustment piece 31 is also bonded and fixed to a locking base 30 forming the other end of the arm 22. The adjustment piece 31 is also detachably engaged with the circumferential surface of the guide shaft 16 from above so as to straddle it, and has a pair of front and rear adjustment slots 32 opened therethrough. Then, by screwing the bolt 33 into the locking base 30, when the adjustment piece 31 is attached to and integrated with the locking base 30, the flexibility of the elongated hole 32 allows the adjustment piece 31 to be installed in the correct orientation. By adjusting the locking state of the guide shaft 16, it is possible to stabilize the state of engagement with the guide shaft 16 and generate an effective frictional force.

In this sense, the opening width and opening depth of the forked fork in the adjustment piece 31 are determined to be precisely fitted to the circumferential surface of the guide shaft 16.
On the other hand, by setting the fork-shaped portions of the locking base 30 to be relatively larger than the circumferential surface of the guide shaft 16, the locking operation of the locking base 30 with respect to the guide shaft 16 is facilitated. That's good. This is because even with this setting, the achievement of the above-mentioned tensioning action can be compensated for by the separate adjustment piece 31.

According to the above configuration, by tightening the screw handle 21 of the material restraining plate 18 and the operating screw 27 of the tension arm 22 during cutting of the material M, the adjustment state of the material cutting thickness W can be adjusted. Since the pressure receiving surface 20 of the restraining plate 18 is opposed to the pressing force of the material M by the tension arm 22 from the back, there is no fear that the restraining plate 18 will retreat. To adjust the cutting thickness W to be thicker or thinner, the operating screw 27 of the arm 22 is slightly screwed back, and the screw handle 21 of the material restraining plate 18 is also screwed back. All you have to do is slide it along the slide guide shaft 16.

Further, the material restraining plate 18 is set so that the cutting thickness W is the maximum, and the material M is roughly cut or roughly cut.
When sliding the arm 22 to the end position of the guide shaft 16, unscrew the operation screw 27 of the arm 22 slightly to lock the locking base 30 and adjustment piece 31 of the arm 22 with the guide shaft 16. It is released from this state and is then allowed to stand up around the pivot pin 25 as shown by the chain line in FIG. By screwing back the screw handle 21 of the material restraining plate 18, the restraining plate 1 is removed together with its tension arm 22.
8 around the guide shaft 16,
It goes without saying that all of them can be laid down in a retracted position from above the fixed table 13.

As described above, in the present invention, the slide guide shaft 16 is attached and fixed to the material placement table 13 of the band saw frame, and the pressure receiving surface 20 faces the table 13 perpendicularly to the axis of the guide shaft 16. The guide shaft 1 is provided with a shaft cylinder 19 at its base end.
Material restraining plate 1 slidably fitted and supported to 6
8, and the adjustment state of the slide is determined by the shaft cylinder 1.
In the device for adjusting the material cutting thickness W fixed by a screw handle 21 screwed in from 9, one end of the tension arm 22 is attached to the back of the pressure receiving surface 20, so that the arm 22 can freely rotate in an up and down manner. Since the arm 22 is pivotally connected to the guide shaft 16 and the other end of the arm 22 is also set to be detachably locked to the guide shaft 16, the problems of the conventional device illustrated in FIGS. 7 and 8 can be completely solved. The tension arm 22 has the effect of solving the problem, and the required structure is extremely simple and sufficient, and the tension arm 22 can be easily attached to the existing material restraining plate.
can be installed, so it can be said to be of great practical benefit.

[Brief explanation of the drawing]

Figure 1 is a plan view of the adjustment device according to the present invention, Figure 2 is a plan view of the adjustment device according to the present invention;
The figure is a sectional view taken along the - line in Fig. 1, Fig. 3 is an enlarged sectional view taken along the - line, and Fig. 4 is an enlarged sectional view taken along the - line in Fig. 2.
5 is an enlarged sectional view taken along the - line, FIG. 6 is a conceptual schematic diagram of FIG. 1, FIG. 7 is a front view showing the conventional device installed, and FIG. 8 is a side view. It is a diagram. M...Material, W...Cutting thickness, 10...Fixing base, 13...Table, 16...Slide guide shaft, 18...Material restraint plate, 19...Shaft cylinder, 20...
... Pressure receiving surface, 21 ... Screw handle, 22 ... Tension arm, 23 ... Connection plate, 25 ... Pivot pin, 26, 32 ... Long hole, 27 ... Operation screw, 3
0... Locking base, 31... Adjustment piece.

Claims (1)

[Utility Model Claims] 1. A material cutting thickness adjusting device for a food cutting band saw comprising a slide guide shaft attached to the material placement table of a band saw frame, a pressure receiving surface facing the table perpendicular to the axis of the guide shaft, and a material stop plate slidably fitted and supported on the guide shaft by a shaft tube at its base end, the adjustment state of the slide being fixed by a screw handle screwed into the shaft tube, wherein one end of a tension arm is pivotally attached to the back of the pressure receiving surface so that the arm can rotate up and down, and the other end of the arm is set so that it can be engaged and disengaged with the guide shaft. 2. A cutting thickness adjusting device for a food cutting band saw as described in Utility Model Claim 1, wherein the other end of the tension arm is formed into a bifurcated fork shape that engages so as to straddle the guide shaft, and a bifurcated fork-shaped adjustment piece is attached to the other end so that its mounting position can be adjusted.