JPS5938981Y2 - Band saw pulley for frozen food - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of the Fourie structure in a band saw for frozen foods.

Generally, with a band saw machine used to cut various frozen foods such as frozen meat and frozen fish, an endless band saw is hung between the upper and lower one-to-zero pulleys, and the band saw is rotated in a circular motion. Frozen food is cut with saw blades,
In this case, unlike iron or wood, frozen foods contain oil and moisture and are particularly slippery. By adopting a model with a flange C for regulation, setting this at an angle at a certain angle, and tensioning the band saw d to the depths of the hanging surface e so as to press it against the flange C. It is customary to prevent the band saw d from coming off as much as possible when feeding or cutting frozen foods.

However, as shown in an enlarged view in FIG.
The structure is such that the above-mentioned flange C is only protruded from the rear (inner part) of the flat bandsaw hanging surface e, and therefore, by repeated feeding, chips are disposed at right angles between the above-mentioned hanging surface e and the overhanging flange C. 1 tends to accumulate concentratedly on a portion of the shaped corner, and with the addition of wear during use, the band saw handling surface e becomes gradually rounded and deformed into an inclined shape, as shown by the chain line in the same figure. In particular, combined with the slipperiness caused by oil and moisture, the band saw d may come off the band saw hanging surface e of Boo')-a and b in the direction of the arrow in the figure, which is extremely dangerous.

5. If the hanging rack e is left to be used for a long period of time, the above-mentioned hanger collapse e will become more and more uneven, and the band saw d will come off more easily. Although the uniformity of the surface e0 is maintained, it is very complicated.

In addition, due to the roundness deformation or local protrusion of the band saw rack surface e, there is a great danger that the band saw d suspended thereon may become unstable and accidentally break. It is not possible to use a band saw with a thin wall, which is effective for maintaining the beauty of the hair.

Furthermore, the above-mentioned pair of pulleys a and b are installed and set at a constant angle of inclination to prevent the band saw d from coming off, and the frozen food is fed to the band saw d in a tensioned state for cutting work. Sometimes, as suggested by Fig. 4, the trailing edge of an endless bandsaw d is 5') a +
In a certain region W corresponding to, for example, about half a circumference of b, the blade is in strong frictional contact with the front periphery of a thick flange C protruding perpendicularly from the bandsaw hanging surface e, as if being pressed against the front periphery of the flange C. , the result is that they mutually sharpen each other, so to speak.

As a result, not only will the blade be cut incorrectly, but the hanging condition of the band saw d will become even more unstable, making it dangerous for the band saw to jump out instantly. However, grinding juice is generated, which infiltrates food and stains and discolors the food, causing deterioration of product value and unsanitary conditions.Frictional heat also softens frozen food, reducing its freshness. There is also the problem that the sharpness deteriorates.

The present invention is intended to solve these problems, and its specific configuration will be described below based on the illustrated embodiment.

. That is, Figures 1 and 2 illustrate a band saw machine for cutting frozen meat equipped with a pulley according to the present invention. 1 is a band saw frame made of aluminum alloy casting, etc., and the lower part of the saw has a frame as shown in the figure, for example. A prime mover housing chamber 3 and a driving pulley housing chamber 4 are configured by a partition wall 2.

5 is a prime mover installed in the prime mover storage chamber 3 - the motor according to the example; 6 is a bearing case fixed to the partition wall 2;
T is a lower shaft supported by a bearing in this teeth 6, and a large diameter V pulley 8 is attached to one end of the lower shaft.
Similarly, at the other end, a flanged motive force 7'-IJ-9 facing into the motive pulley storage chamber 4 is fixedly installed.

Reference numeral 10 denotes a small-diameter V-pulley protruding from the motor 5, and a V-belt 11 is wound between this and the V-pulley 8 of the lower shaft 1.

Note that a transmission means other than such a belt may be employed, and the lower shaft 1 may be directly connected to the motor 5.

Reference numeral 12 denotes a driven pulley storage chamber formed in the upper part of the band saw frame 1, which, like the driving pulley storage chamber 4, can be opened and closed by a lid (not shown).

Reference numeral 13 denotes a flange-fitted driven pulley supported in the driven pulley storage chamber 12 so as to freely rotate. The band saw 14 can be tensioned.

That is, as is clear from FIG. 1.2, in the driven pulley storage chamber 12, there are a pair of left and right rails 15 on the frame 1.
is fixed.

Reference numeral 16 denotes a slider which can slide along the upper and lower blade directions while constantly engaging with both rails 15, and a threaded pipe 1T is fixed to the center thereof with a pin 18.

A threaded rod 19 is screwed into the threaded pipe 11, a part of which extends upwardly while passing through the frame 1, and a rotating handle 20 is fixed to its upper end.

Reference numeral 21 denotes a coiled tension string wound around the threaded rod 19 between the handle 20 and the top surface of the frame 1, and 22 a driven pulley mounting base detachably engaged with the slider 16. An upper shaft 23 is fixed to the center thereof in a forwardly protruding state, and the driven pulley 13 is supported by this upper shaft 23 so as to freely rotate.

In this case, the two-pronged fork 24 protruding from the upper part of the pulley mounting base 220 has a concave arc plate formed thereon, while a corresponding convex arc plate is formed on the slide par 16 to facilitate the pulley mounting. The stand 22 is engaged with the slide par 16 in a pivoting manner so that the driven pulley 13 thereof can be tilted.

Here, the inclination of the driven pulley 13 is to adjust the degree of protrusion of the saw teeth 14a in the band saw 14, and the inclination angle can be adjusted by pressing the driven pulley 13 against the frame 1 through the center of the lower part of the pulley mounting base 22. This is done by adjusting the degree of screwing of the filter adjustment screw 25.

In addition, 26 is a long bolt of the adjustment screw 25, and 2γ is a stopper for preventing the pulley mounting base 22 from accidentally coming off from the slider 16, and is pivotally connected in the middle of the threaded pipe 11.

In the present invention, the above-mentioned zero driving pulley 9 and driven pulley 13
Both are integrally constructed in the shape shown in Figure 3.

That is, each pulley 9, 13 is made of aluminum alloy casting or the like, and is provided with a horizontally flat bandsaw hanging surface 28 of a predetermined width.

29 is a collar protruding from the rear periphery of the hanging rack tube 28 to prevent the band saw from leaving; 30 is a concave stepped surface for sawtooth release provided at the front periphery of the hanging rack tube 28; 5 the band saw 14; Hang it and center it so that the sawtooth 14a faces the concave stepped surface 30.

Reference numeral 31 denotes a concave circumferential groove that is formed in a concave shape low from the hanging surface 28 at a corner portion of the band saw hanging surface 28 and the overhanging flange 29, and functions to receive chips.

In other words, the bandsaw hanging surface 28 is lower than the recessed stepped surface 30.
and the concave circumferential groove 31, it is set in a form in which it seems to be sandwiched from the front and back.

In this case, although the size, depth, and shape of the concave circumferential groove 31 can be freely selected, in FIG.
1 has a rectangular cross-sectional shape having approximately the same depth as the 5-concave stepped surface 30.

Furthermore, 32 is a tapered relief surface formed on the front peripheral edge of the band saw leave restriction circumferential flange 29, whereby the angle θ between the flat band saw hanging surface 28 and the flange 29 is set to an obtuse angle. ing.

The tapered relief surface 32 of this flange 29 functions effectively as a relief to avoid pressing frictional contact of the endless band saw 14 with the flange 29, while restricting the withdrawal of the band saw 14 by its overhang. This completely prevents the band saw 14 from coming off, and also prevents the generation of frictional heat and unpleasant cutting noises.

In a part of the corner formed into an obtuse angle by this relief surface 32,
As is clear from the figure, the chip receiver has a recessed circumferential groove 31 open therein for receiving chips.

Incidentally, regardless of which pulley 9, 13 structure shown in FIG. For,
The band saw 14 suspended from this acts as if it were bent from the front and back, using the concave step surface 30 and the concave circumferential groove 31 and both shoulder portions as supporting ridge edges. Of course, it can be said that it stabilizes the rack state and helps prevent it from coming off.

Therefore, when cutting frozen meat, etc.,
between the upper and lower parts of the driving pulley 9 and the driven pulley 13,
The band saw 14 is hung so as to be inserted from the front, and the degree of tension is adjusted by the vertical sliding movement of the slide par 16 by rotating the handle 20, and both pulleys 9.
After adjusting the degree of protrusion of the sawtooth 14a relative to the saw blade 13 and the proper contact posture of the band saw 14 relative to the hanging surface 28 by moving the adjustment screw 25 forward and backward and selecting the inclination angle of the driven pulley 13, the cord is inserted into a 100V outlet and used. Accordingly, the motor 5 drives both pulleys 9゜13,
Frozen meat is fed into the band saw 14 from the front while circulating the band saw 14.

During such a cutting operation, the chips adhering to the saw teeth 14a move backward parallel to the band saw hanging surface 28 due to zero feed repetitions, and are pushed to a part of the corner between the hanging surface 28 and the collar 29. As a result, it hardly falls off the rotating pulley 9゜13 due to the oil and moisture content.
As it is, the concentrated receptacle is attached and deposited in the concave circumferential groove 31 of a part of the corner in a container-like manner, so that the chips are automatically buried from the band saw hanging surface 28 and are deposited on the hanging surface 28. There is no roundness or local convexity formed on the hanging surface 28, and therefore, even if the hanging surface 28 is used for a long period of time, it is possible to reliably prevent uneven wear of the hanging surface 28 and the risk of the band saw 14 coming off. It is.

After finishing the cutting work, remove the band saw 14 and
-Remove the chips attached and accumulated in the concave circumferential grooves 31 of 9 and 13.

In this case, the chips are received by the concave circumferential groove 31 (continuous ring-shaped concave groove), so for example, a large number of holes are formed in four dots on the outer circumferential surface of the pulley 9.13+'. Compared to the type that requires inserting chips, the entire chip receptacle can be cleaned by inserting a simple cleaning tool such as a spatula into the concave circumferential groove 31 and rotating the Goo IJ-9, 13 lightly by hand. This means that you can beautify them all at once and with great ease.

Furthermore, in the bandsaw machine illustrated in FIGS. 1 and 2, the driven pulley 13 can be assembled or removed without tools.
rx, the overall cleaning work including the removal of the above-mentioned chips is significantly simplified.

In other words, when cutting food such as frozen meat, it is necessary to clean it quickly and neatly for hygiene reasons.
3 can be removed from the slider 16 by rotating the stopper 21 upward while it remains fixed to the mounting base 22, and the threaded connection between the threaded groove 19 and threaded pipe 17 can also be released. For example, since the slider 16 can be removed from the rail 15 and the threaded rod 19 can be removed from the frame 1, the driven pulley storage chamber 12 can be removed.
As a result, only the hard N0 rail 150 remains on the frame 1, and the cleaning work such as washing with water is significantly simplified, and reassembly can be done with high efficiency without any tools. .

As described above, the present invention is a band saw machine for frozen foods in which chips do not easily fall from the pulley 9゜13 and the band saw 14 easily slips out due to special circumstances including oil and moisture, unlike steel and wood. As improved pulleys 9 and 13,
Since a concave circumferential groove 31 is provided on the band saw hanging surface 28, the flange 29 protruding from this, and a part of the corner, the chips are collected at the actual corner of the hanging surface 28 and the flange 29. It is possible to reliably receive the deposits in the places where they are most likely to adhere and accumulate as precipitates, and as a result, the flatness and uniformity of the band saw mounting surface 28 can be guaranteed for a long time.

Even if the hanging surface 28 were to wear out after long-term use, it would not result in uneven wear as shown in FIG. 5, which would impede the overall uniformity, so the thin bandsaw 14 can be easily used. You can do that too.

The thin band saw 14 not only further reduces the generation of chips, but also improves the sharpness of frozen foods and prevents them from losing their shape, regardless of their commercial value.

Moreover, in the present invention, the front peripheral edge of the flange 29 is formed as a hexagonal relief surface 32, and the angle θ between the flange 29 and the band saw hanging frame 28 is set to be an obtuse angle. Strong frictional contact occurs in a certain area W between the rear edge of the band saw 14 and the front peripheral edge of the flange 29, and the generation of screeching noise, frictional heat, grinding juice, etc. This means that softening of cut surfaces and hygiene problems in frozen foods can be completely prevented.

Paradoxically, it can be said that the T-shaped relief surface 32 allows the pulley 9.13 to be mounted in an inclined state, so despite the special circumstances where the band saw 14 tends to slip out due to oil, fat, moisture, etc. It is also possible to reliably prevent detachment and maintain a stable suspended state.

The intersecting angle θ between the flange 29 and the bandsaw hanging surface 28 is an obtuse angle, and since the chip receiver that continues in a ring shape at a part of the corner opens the concave circumferential groove 31 for receiving, the concave circumferential groove 31 To remove the chips once received by the groove, for example, by inserting a spatula or the like into the concave circumferential groove 31 and rotating the pulleys 9 and 13, the chips can be reliably and easily removed from the entire area. can be cleaned and removed.

The angle θ, which is obtuse and widens outward, allows the chips to fall smoothly.

Moreover, since the necessary structure for achieving these various effects is extremely simple and sufficient, it can be said to be a practically useful device.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of a band saw for cutting frozen meat to which the present invention is applied, Fig. 2 is a partially cutaway enlarged view of Fig. 1, and Fig. 3 is a view of how the band saw is attached to the pulley of the present invention. Fig. 4 is an explanatory overall side view showing a general example of a band saw hanging state on a pulley; Fig. 5 is an enlarged view of the conventional product showing the main parts for comparison with the present invention. FIG. 1... Band saw frame, 9... Drive pulley, 13
... Driven pulley 14 ... Band saw, 28 ... Band saw hanging tube, 29 ... Flange, 31 ... Concave peripheral groove, 32 ... Relief surface.

Claims (1)

[Scope of utility model registration request] Band saw rack surface 28 and band saw clock-out regulation circumferential guard 2 that extends from it
A concave circumferential groove 31 for receiving chips is provided at a part of the corner with 9, and the front periphery of the flange 29 is made into a tapered relief surface 32, and the angle formed between the flange 29 and the band saw hanging surface 28 is This is a band saw machine for frozen food that has an obtuse angle θ.