JPH0724071Y2 - Band saw tension adjusting means for three-piece grater device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a band saw tension adjusting means in a device for dropping three fish bodies such as frozen fish bodies.

[Prior Art] As an example of a device for dropping three fish bodies, for example, Shoukai 62-4690
As shown in Japanese Patent Publication No. JP-A-2003-264, a pair of saw wheels each having two stages of saw hooks are attached to the frame, and band saws are respectively hooked on the saw hooks of these saw wheels. There is.

In such a three-piece grater, the tension of one band saw is generally adjusted by adjusting the position of one saw wheel with respect to the other saw wheel.

[Problems to be solved by the device]

The tensions of the pair of band saws must be adjusted so that they are equal to each other, but in the conventional band saw tension adjusting means, the position of one saw wheel is adjusted with respect to the other saw wheel. Therefore, the tension of the two band saws must always be adjusted by the same amount at the same time, and the tension of one band saw must be adjusted or the tension of the two band saws must be adjusted by different amounts. There was an inconvenience that it could not be done. That is, since the tensions of the two band saws applied to the saw wheel are actually different from each other, it is virtually impossible in the prior art to adjust the tensions of the two band saws to the same desirable condition. Met.

The present invention has been made in order to solve such a problem.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the present invention provides a frame in which a pair of saw wheels each having two stages of saw hooks are mounted, and a band saw is attached to each saw hook of each saw wheel. In the three-grating device, one saw wheel of the pair of saw wheels can be positionally adjusted with respect to the other saw wheel, and yet another saw wheel can be positionally adjusted with respect to the pair of saw wheels with respect to the frame. The band saw tension adjusting means is characterized in that one of the pair of band saws is mounted on the other saw wheel in addition to the pair of saw wheels.

[Action]

In the present invention, one of the pair of band saws is hooked on the pair of saw wheels and the other saw wheel, and the other band saw is hooked only on the pair of saw wheels.

(1) When adjusting the tension of only one of the band saws,
The position of the other saw wheel may be adjusted with respect to the pair of saw wheels. In this case, since the other band saw is hung only on the pair of saw wheels and not on the other saw wheel, the tension of the other band saw does not change.

(2) When adjusting the tension of only the other band saw,
The position of one of the pair of saw wheels may be adjusted with respect to the other saw wheel. In this case, the tension of the one band saw hanging on the pair of saw wheels also changes at the same time, so when the tension of the one band saw is to be maintained in the original state, the position of the other saw wheel is adjusted. There is a need to.

(3) When adjusting the tension of both band saws individually, first adjust the position of one of the pair of saw wheels with respect to the other saw wheel, and then adjust the tension of the other band saw. Adjusting the tension of the one band saw by adjusting the position of the other saw wheel with respect to the pair of saw wheels.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

First, the three-piece grater device will be described. In this device, the frame 1 has two stages of saw hooks 2, 3, 4,
A pair of saw wheels 6 and 7 provided with 5 are attached, and band saws 8 and 9 are respectively hung on the saw hook portions 2, 3, 4, and 5 of these saw wheels 6 and 7. In such a three-piece grater, the head-removed fish body 10 is lowered into three pieces by a pair of band saws 8 and 9 as shown in FIG.
Reference numeral 11 in FIG. 6 is a vertebra, reference numeral 12 in FIG.
Is a feeding mechanism for feeding the fish body 10.

Next, the band saw tension adjusting means in the above-described three-sheet grater device will be described. This adjusting means makes it possible to adjust the position of one saw wheel 6 of the pair of saw wheels 6 and 7 with respect to the other saw wheel 7 and further to the frame 1 another saw wheel 13.
Is attached to the pair of saw wheels 6 and 7 so that the position thereof can be adjusted, and one of the pair of saw blades 8 and 9 is hung on the pair of saw wheels 6 and 7 as well as the other saw wheel 13. It is characterized by having been handed over.

Here, a means for adjusting the position of one saw wheel 6 with respect to the other saw wheel 7 will be described, but a means similar to this is that the other saw wheel 13 is attached to the pair of saw wheels 6, 7. It is also used as a means for tightening the position. Reference numeral 15 is a moving body attached to the shaft 16 of the saw wheel 6,
The moving body 15 is slidably fitted in a guide frame 17 fixed to the frame 1. A tip end of a handle shaft 18 penetrating the guide frame 17 is attached to the moving body 15 via a bearing 19. Handle shaft 18
A male screw 20 is engraved on this and a handle 21 is fixed to the other end. In order to fit the male thread 20 of the handle shaft 18, a screw body 23 is slidably fitted into the support body 24 for engraving a screw 22,
The female screw 23 of 23 is screwed into the male screw 20 of the handle shaft 18.
Further, a spring 25 is arranged between the guide frame 17 and the ratchet body 23 to constantly push the female screw body 23 in the direction of separating from the guide frame 17. In this case, when the handle 21 is rotated in a predetermined direction, the moving body 15 rises together with the one saw wheel 6 (Fig. 2). This is because the starting and female screw bodies 23 are prevented from descending by the force of the spring 25. When the handle 21 is further rotated in the same direction, the band saws 8 and 9 prevent the saw wheel 6 and the moving body 15 from rising, and the female screw body 23 descends against the force of the spring 25, so that the spring 25
Shrinks. If the rotation of the handle 21 is stopped in this state, the spring
25 is in a contracted state, and as a result of continuously pushing the female screw body 23 upwards cooperatively, the band saw 8 via the handle shaft 18 and the moving body 15,
A certain tension is applied to 9.

In the second to third examples, a means for adjusting the entrance / exit of the band saws 8 and 9 (the extent of the saw blade) is provided by slightly inclining the saw wheel 6. That is, a tilting member 27 is tiltably attached to the moving body 15 via a tilting shaft 26, a tilting means 28 for tilting the tilting member 27 is provided to the moving body 15, and the tilting member 27 is provided with a saw wheel 6. The shaft 16 of is fixed. In the case shown, the tilting means 28
As a result, a bolt is screwed onto the moving body 15, and the tilting member 27 is pressed by the bolt.

[Effect of device]

As described above, according to the band saw tension adjusting means of the present invention, the tension is adjusted only for one of the pair of band saws, or the tension of each of the pair of band saws is different. Only the amount can be adjusted separately. Therefore, it is possible to adjust the tensions of the pair of band saws to the optimum states which are equal to each other.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a sectional view showing an example of means for adjusting the position of a saw wheel, and FIG.
Fig. 4 is a sectional view taken along line III-III of Fig. 4, Fig. 4 is a front view showing a moving body and a tilting member, and Fig. 5 is a sectional view showing a part of a saw wheel.
FIG. 6 is a side view showing the positional relationship between the fish body and the band saw. 1 ... frame, 2-5 ... sawing part 6,7 ... saw wheel, 8,9 ... band saw 10 ... fish body, 11 ... vertebral bone 12 ... feed mechanism, 13 ... saw wheel 15 ... Moving body, 16 …… Axis 17 …… Guide frame, 18 …… Handle shaft 19 …… Bearing, 20 …… Male thread 21 …… Handle, 22 …… Female thread 23 …… Female thread body, 24 …… Support body 25 …… Spring, 26 …… Tilt axis 27 …… Tilt member, 28 …… Tilt means

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A frame is provided with a pair of saw wheels each having two stages of saw hooks, and a band saw is hung on each saw hook of each of these saw wheels. One of the pair of saw wheels is positionally adjustable with respect to the other saw wheel, and another saw wheel is attached to the frame so as to be positionally adjustable with respect to the pair of saw wheels. Band saw tension adjusting means characterized in that one of the band saws is bridged over the pair of saw wheels and the other saw wheel.