JPH0761635B2 - Cutting material feeding device in cutting machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cut material feeding device in a cutting machine for automatically cutting fish and other foods at its center.

[Conventional technology]

Conventionally, when cutting fish and other foods at the center, a worker manually sends the cut product to a blade such as a band saw or a circular saw, but such work is performed. Is not only inefficient, it may hurt your hands and fingers, and it is difficult to cut accurately,
Many proposals have been made for a device that can automatically and accurately perform the above cutting.

Specifically, a pair of conveyor belts are arranged symmetrically on both sides of the cutter in the cutter, and inside the conveyor belts, the portions of the conveyor belts facing each other are centered, that is, the cutters. A feeding device is known in which a belt pressing roller that presses in a direction approaching a feeding line is provided. According to such a device, the cut object can be automatically cut by feeding the cut object such as a fish from both sides with the pair of conveyor belts and feeding it to the blade.

However, in such an apparatus, when one of the conveyor belts is pushed outward by the passage of the cut object against the pressing force of the belt pressing roller, that is, in the direction away from the center line of the apparatus, the other belt is correspondingly pushed. The conveyor belt is pressed by the belt pressing roller in the direction closer to the center line, which may cause the position of the cut object to be largely displaced from the center line.

Therefore, in Japanese Utility Model Publication No. 60-1999, each belt pressing roller is attached to the swing end of a swing arm that swings about a vertical axis, and a gear is provided on each swing arm so that both gears are at the center of the device. It is shown that they engage on the line, that is, on the feed line of the cut product.

According to such an apparatus, when one of the conveyor belts is pushed outward by the cut object and the belt holding roller is pushed outward by the cut object, the swing arm of the belt holding roller is shaken. By interlocking with the movement of the other swing arm, the other belt pressing roller attached to this swing arm also moves to the outside.
That is, since both belt pressing rollers always move to positions symmetrical about the center line as the axis of symmetry, the cut object is fed to the cutting tool while being accurately held on the center line.

[Problems to be Solved by the Invention]

In the above-mentioned device, each swing arm must be provided with gears and both gears must be accurately meshed on the center line, which requires precise positioning and size setting of each swing arm, which tends to increase cost. Further, it is desirable that each belt pressing roller is pressed against the conveyor belt in a direction orthogonal to the conveyor belt. However, in the above apparatus, since the belt pressing roller draws a circular locus around the swing axis of the swing arm, it does not contact the transport belt. On the other hand, it is difficult to press the belt pressing roller in a direction that is always orthogonal.

Further, in this device, since a torsion spring is required for each arm to urge the swing arm, the structure is complicated and it is relatively difficult to assemble the entire device.

In view of such circumstances, it is an object of the present invention to provide a feeding device that has a simple and low-cost structure and that can feed a cut object to a blade of a cutting machine while accurately holding the cut object on the center line.

[Means for Solving the Problems]

The present invention is provided on a cutting machine that cuts a cut object at its center, and a pair of conveyor belts provided on both left and right sides of a line passing through a blade of the cutting machine as a center line, and both conveyor belts Driving means for driving the cut object sandwiched between the belts in a direction to be sent toward the blade, and the inside of each of the conveyor belts, pressing portions of the conveyor belts facing each other in a direction approaching the center line. In a cutting product feeding device in a cutting machine provided with an inner tension member, each inner tension member is slidably attached to a main body of the cutting machine in a direction substantially orthogonal to a conveyance direction of the cutting product, and the main body of the cutting machine. With respect to the center line, a moving member provided so as to be movable along the center line, an expansion spring for biasing the moving member in a direction away from each inner tension member, and each inner tension member. The ® down member coupled to the common of the moving member both inner tension member with the movement of the moving member is obtained and a link member for linking toward or away from these other (claim 1).

Further, in the above apparatus, an outer tension member that is provided inside each of the conveyor belts and presses portions of the both conveyor belts opposite to each other and outwardly is provided, and the outer tension member and the inner tension member are provided. It is more effective if the and are connected and both are integrally moved in a direction substantially orthogonal to the conveying direction of the cut object (claim 2).

[Action]

According to the above configuration, in the normal state, the moving member is urged in the direction away from the inner tension members, so that the inner tension members connected to the moving member via the link members are urged in the direction of approaching each other. Energized. Therefore, by these inner tension members, the portions of the two conveyor belts facing each other are pushed from the inside in the direction approaching the center line, and the conveyor belt can sandwich the cut object.

On the other hand, when the cut material actually passes and one of the conveyor belts is pushed in the direction away from the center line together with the inner tension member against the pressing force of the inner tension member, The moving member connected via the link member is pulled in a direction approaching both inner tension members against the urging force of the urging member, and the other inner tension connected to the moving member via the link member. The member also moves away from the centerline. That is, since both inner side tension members are always held in symmetrical positions, the cut object is fed to the cutting tool while being accurately held on the center line.

Further, according to the device in which the inner tension member and the outer tension member are integrally connected, since both tension rollers always move in the same direction by the same amount in the direction orthogonal to the feed direction of the cut object, the tension of the conveyor belt is increased. Always remains approximately constant.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

The cutting machine 10 shown in FIGS. 3 and 4 includes a base 11 extending on a horizontal plane and a cover 12 that covers the base 11.
On the side of the base 11, a band saw driving device 16 that supports an endless band saw (blade) 14 and drives it in the longitudinal direction is provided. The band saw 14 penetrates the center of the base 11 in the vertical direction, and can be replaced from the inlet side through a groove 18 provided in the base 11.

A pair of conveyor belts (timing belts) 20 are provided at positions symmetrical with respect to the center line X (see FIG. 4) passing through the band saw 14.

Both conveyor belts 20 are drive rollers (timing pulleys) 22 provided on the outlet side (left side in FIG. 4) of the cutting machine 10.
And a driven roller (timing pulley) 24 provided on the inlet side (right side in FIG. 4). Each drive roller 22 and driven roller 24 are rotatably supported on the base 11 about a vertical axis.

Further, below the both transport belts 20, a pair of transport chains 26 are provided at positions sandwiching the center line X from the left and right sides. The transport chain 26 is stretched between a horizontally extending support shaft 28 provided on the inlet side and a horizontally extending drive shaft 30 provided on the outlet side.

FIG. 5 shows a drive mechanism for the drive roller 22 and the drive shaft 30.

At the exit side of the cutting machine 10, the rotary shaft 22 of each drive roller 22
The reference numeral 1 penetrates the base 11 and projects downward, and large-diameter gears 32, 33 are fixed to the protruding ends thereof, respectively. Further, on the lower surface of the base 11, a pair of left and right intermediate shafts 3 extending vertically is provided.
4, 35 are rotatably attached, and small-diameter gears 36, 37 that engage with the gears 32, 33 are provided at the lower ends of the intermediate shafts 34, 35, respectively. A bevel gear 38 is provided at the lower end of the intermediate shaft 34 on one side.

Below the base 11, a motor support plate 39 is suspended from the base 11 via a suspension rod 31, and a drive motor (driving means) 40 is fixed on the motor support plate 39. The drive shaft 42 directly connected to the drive motor 40 is horizontal and extends in the width direction of the cutting machine 10, and its end is rotatably supported by a support member 44 fixed to the lower surface of the base 11. ing. A bevel gear 46 is fixed to a predetermined position of the drive shaft 42, and the bevel gear 46 is meshed with the bevel gear 38.

On the other hand, the drive shaft 30 is a base through a plurality of support members 47.
It is rotatably supported on the upper surface of 11. Then, a transmission chain 48 is stretched around the drive shaft 30 and the drive shaft 42.

Therefore, when the drive motor 40 operates, the rotation of the driving shaft 42 is transmitted to the intermediate shaft 34 via the bevel gears 46, 38, and the rotation of the intermediate shaft 34 is transmitted via the gears 36, 32 to one of the The rotation is transmitted to the drive roller 22 and the rotation is transmitted to the gear 3
It is transmitted to the other drive roller 22 via 6, 37, 33, and by this, both conveyor belts 20 are driven in the direction (the arrow direction in FIG. 4) for feeding the cut object toward the band saw 14. On the other hand, the rotation of the driving shaft 42 is transmitted to the drive shaft 30 via the transmission chain 48, so that the conveyor chain 26 supports the cut object from below in the direction of sending the cut object to the band saw 14. It is designed to be driven.

Further, in this apparatus, inside tension rollers 50, 51 for pushing out portions of the two conveyor belts 20 facing each other in a direction approaching the center line X are provided inside the conveyor belts 20.
Outer tension rollers 52, which are provided on the inlet side and the outlet side of 0, and push out the portions (outer portions) of the two conveyor belts 20 opposite to the mutually opposing portions in a direction (outer direction) away from the center line X, 53 are provided on the inlet side and the outlet side of the cutting machine 10.

As shown in FIGS. 6 and 7, each tension roller 50 to 53 is composed of a roller body 55 and a rotating shaft 56 provided below the roller body 55. 56
A guided portion 58 having a larger diameter than the above is formed.

On the other hand, on the left and right of the upper surface of the base 11, a pair of guide members 60 are fixed on the inlet side and the outlet side. This guide member
Reference numeral 60 denotes a guide groove having a U-shaped cross section, which extends in the width direction of the cutting machine 10, that is, in the direction orthogonal to the feeding direction of the cut material (FIG. 7).
601 and each tension roller 50-
The guided portion 58 of 53 is fitted. As a result, the tension rollers 50 to 53 move in the direction along the guide groove 601.
That is, it is mounted on the base 11 so as to be movable in a direction orthogonal to the feed direction of the cut object.

Further, the rotating shaft 56 of the inner tension roller 51 and the rotating shaft 56 of the outer tension roller 53 on the outlet side are separated by the sixth
As shown in FIGS. 7 and 7, they are connected to each other by a connecting plate 62 at a position above the base 11, so that both tension rollers 51 and 53 always move integrally along the guide groove 601. It has become.

On the other hand, as shown in FIG. 7, the lower ends of the rotating shaft 56 of the inner side tension roller 50 and the rotating shaft 56 of the outer side tension roller 52 on the inlet side are elongated holes 64 formed in the base 11.
And penetrates through and projects below the base 11. Then, the protruding ends are connected by the connecting plate 66,
Portions of the rotating shafts 56 above the base 11 are also connected to each other by a connecting plate 68. As a result, the inner tension roller 50 and the outer tension roller 52 on the inlet side also move integrally along the guide groove 601.

On the other hand, on the upper surface of the base 11, the tension roller 50
A moving shaft (moving member) 70 is attached to a portion closer to the outlet side than ~ 53. The moving shaft 70 is arranged in a direction in which its central axis coincides with the center line X, and is mounted on the base 11 so as to be movable along the axis. Specifically, the base
A bearing 72 is fixed to the upper surface of 11 via a bracket 71, and the inlet side portion of the moving shaft 70 is fitted in the bearing 72 in a penetrating state.

A pin 76 is provided at the inlet end of the moving shaft 70 via a bracket 74. On the other hand, the pins 78 (fourth pin) (fourth pin) (fourth pin) are also provided at the intermediate portions of the left and right connection plates 62 that connect the inner tension roller 51 and the outer tension roller 53 on the outlet side.
) Is provided, and both pins 78 are connected to the common pin 76 by a pair of left and right link members 80.

Further, a flange portion 701 is formed at the outlet side end of the moving shaft 70, and a compression spring (urging member) 82 is press-fitted between the flange portion 701 and the bearing 72. By the direction in which the moving shaft 70 separates from the tension rollers 51, 53,
That is, it is biased toward the exit side.

Similarly, on the lower surface of the base 11 at a position closer to the outlet than the tension rollers 50 to 53, as shown in FIG. 7, a moving shaft 84 is provided with a center axis X via a bracket 71 and a bearing 72 similar to the above. The movable shaft 84 is mounted movably above, and a pin 88 is also mounted on the inlet side end of the moving shaft 84 via a bracket 86.

On the other hand, the rotary shaft of the inner tension roller 50 on the inlet side
Pins (not shown) similar to the pins 78 are also provided at an intermediate portion of a connecting plate 66 that connects the lower ends of the rotary shafts 56 of the roller 52 to each other, and these pins and the pins 88 form a pair of left and right. They are connected by a link member 90.

Further, a collar portion 841 formed at the outlet side end of the moving shaft 84
A compression spring (biasing means) 92 is also press-fitted between the bearing 72 and the bearing 72, and the moving shaft 84 is biased in a direction away from the tension rollers 50, 52 by the biasing force of the compression spring 92.

Next, the operation of this device will be described.

First, the cut belt is not sent, that is, the conveyor belt 20.
In the normal state in which no external force is applied to the moving shaft 70, as shown in FIG. 1, the moving shaft 70 is pulled by the elastic force of the compression spring 82 in the direction away from the tension rollers 51, 53 on the outlet side, and the moving shaft 70 also moves. A connecting plate 62 and each tension roller 51, 5 connected to 70 via a link member 80.
3 is drawn together in the direction of approaching the center line X. Therefore, the portions of the two conveyor belts 20 facing each other are extruded from the inner side of the belt toward the center line X by the inner tension roller 51.

On the other hand, as for the tension rollers 50 and 52 on the inlet side, the moving shaft 84 is linked to the moving shaft 84 by pulling in the direction away from the tension rollers 50 and 52 by the elastic force of the compression spring 92 in the same manner as above. Both tension rollers 50, 52 connected via the member 90 and the connection plate 66.
Are attracted toward the center line X.

Therefore, in this state, the drive motor 40 is actuated to drive the conveyor belt 20 and the conveyor chain 26 to support the cut object such as a fish on the conveyor chain 26, and the cut object is moved to the left and right conveyor belts. By sandwiching with 20 from both sides, the cut material can be sent from the inlet side toward the band saw 14.

During this conveyance, as shown in FIG. 2, by passing the cut material, for example, one inner tension roller on the outlet side is provided.
When 51 is pushed away from the center line X, the moving shaft 70 connected to the inner tension roller 51 via the connecting plate 62 and the link member 80 causes the compression spring 82 to move.
The other inner tension roller 51, which is connected to the moving shaft 70 via the other link member 80 and the connection plate 62, by being pulled in a direction approaching the tension rollers 51, 53 against the elastic force of the other. Also moves in a direction away from the center line X like the inner tension roller 51. This action can be similarly obtained for the left and right inner tension rollers 50 on the inlet side.

That is, in this device, the left and right inner tension rollers
51 (50) is a common moving shaft 70 via a link member 80 (90)
Since it is connected to (84), both tension rollers 51
(50) is always held in a symmetrical position with the central axis X as the axis of symmetry. Therefore, the cut product is conveyed to the band saw 14 while being accurately held on the center line X.

Moreover, this device does not require a complicated mechanism such as meshing gears on the center line X as in the prior art, does not require precise positioning and dimension setting, and does not require a swing arm, so that the left and right tension roller Can be moved in a direction substantially orthogonal to the conveyor belt 20. Also, the left and right tension rollers can be urged by using a common urging member (the compression springs 82, 92 in the above-mentioned embodiment), which makes the assembly simple.

Further, in this embodiment, the outer tension rollers 52, 53 move integrally with the inner tension rollers 50, 51, that is, the outer tension rollers 52, 53 are always in the same direction as the inner tension rollers 50, 51 by the same amount. Since it moves, the tension of the conveyor belt 20 can always be kept substantially constant.

It should be noted that the present invention is not limited to such an embodiment, and the following aspects can be taken as an example.

(1) In the present invention, the shape and the number of the tension members may be set appropriately according to the structure of the cutting machine.

(2) In the above-described embodiment, the moving shafts 70, 84 are provided at positions on the outlet side of the tension rollers 50 to 53. Need only be configured to move on the center line.

(3) The "center line" in the present invention means a line passing through the blade, and does not mean the center line of the cutting machine body. Therefore, it is not necessary for the cutter body to be symmetrically configured about the center line as the axis of symmetry, and the same applies to the feeding device.

(4) In the present invention, various things such as a circular saw and a cutter other than a saw can be widely applied regardless of the kind of the blade.

〔The invention's effect〕

As described above, the present invention makes it possible to move each inner tension member relative to the main body of the cutting machine in a direction substantially orthogonal to the conveyance direction of the cut material, and to move both inner tension members on the center line passing through the blade. The moving member is connected to the moving member via a link member, and the moving member is biased in a direction away from each inner tension member. There is an effect that it is possible to send the cut object toward the cutting tool while reliably holding it on the center line with a simple and low-cost structure without using it. It is also possible to set the moving direction of each inner tension member to a direction substantially orthogonal to the feed direction of the cut object.

Further, according to the one in which the outer tension member is integrally connected to the inner tension member and both of them are integrally moved in the direction substantially orthogonal to the transport direction of the cut object, according to the one in which the outer tension member is always moved in the same direction as the inner tension member. Since the outer tension member moves by the same amount, there is an effect that the tension of the conveyor belt can be constantly kept substantially constant.

[Brief description of drawings]

FIG. 1 is a partial sectional plan view showing a normal state in which an external force is not applied to a main part of a cut material feeding device of a cutting machine according to an embodiment of the present invention, and FIG. 2 is an inside view of a main part of the feeding device. Partial sectional perspective view showing a state where the tension member is pushed in a direction away from the center line, FIG. 3 is an overall perspective view of the above cutting machine, and FIG. 4 is a partial sectional plan view of the same cutting machine.
FIG. 6 is a front view showing a drive mechanism of the cutting machine, FIG. 6 is a sectional view taken along the line VI-VI of FIG. 7, and FIG. 7 is a partial sectional side view showing a main part of the cut material feeding device in the cutting machine. Is. 10 ... Cutting machine, 11 ... Base, 14 ... Band saw, 20 ...
… Conveyor belt, 40 …… Drive roller (drive means), 50,51
...... Inner tension roller (inner tension member), 5
2,53 …… Outside tension roller (outside tension member), 60 …… Guide member, 62,66,68 …… Connecting plate, 7
0,84 …… Movement axis (moving member), 80,90 …… Link member, 8
2,92 ... Compression spring (biasing member).

Claims (2)

[Claims] 1. A pair of conveyor belts provided on a cutting machine for cutting a cut material at its center and provided on both left and right sides of a line passing through a blade of the cutting machine as a center line, and both of these conveyor belts. Driving means for driving the cut object sandwiched between the conveyor belts in a direction to be sent toward the blade, and a portion provided inside each of the conveyor belts and pushing portions of the conveyor belts facing each other in a direction approaching the center line. In the cut material feeding device in the cutting machine having an inner tension member to be attached, each inner tension member is slidably attached to the main body of the cutting machine in a direction substantially orthogonal to the conveyance direction of the cut material, and A moving member provided so as to be movable with respect to the main body along the center line, an expansion spring for biasing the moving member in a direction away from each inner tension member, and each inner TE. And a link member for connecting both inner tension members in a direction in which they move toward and away from each other as the moving member moves, and a cut member in a cutting machine. Feeder. 2. The cut object feeding device in the cutting machine according to claim 1, wherein the outer tension member is provided inside each of the conveyor belts and presses outwardly the portions of the two conveyor belts opposite to each other and opposite to each other. And an outer tension member and the inner tension member are connected to each other so that both of them move integrally in a direction substantially orthogonal to the direction in which the cut material is conveyed. .