JP2758357B2 - Presser device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mounted on a cutting device for cutting an object conveyed on a conveying surface along a direction crossing the conveying surface, and pressing the object against the conveying surface. The present invention relates to a presser device to be used.

[0002]

2. Description of the Related Art Conventionally, as illustrated in FIG.
01 is a pressing device that presses the object 303 toward the conveying surface when cutting the object 303 such as a fish conveyed along the direction perpendicular to the paper surface.
As disclosed in Japanese Patent No. 216695, there is a structure in which an object 303 to be cut is pressed toward a conveying surface 301 by a pressing plate 305 that moves up and down.

[0003]

[SUMMARY OF THE INVENTION However, in in which holding device is described in JP-A-63-216695, Fig.
In order to hold the workpiece 303 having a semi-cylindrical cross section as shown in FIG. 8 , the holding plate 305 and the workpiece 3
Since the contact area with the object 03 is limited to the vicinity of the top 307 of the object, the movement of the object in the directions of the arrows U and V may not be sufficiently restricted.

[0004]

According to a first aspect of the present invention, there is provided a holding device for cutting an object to be conveyed on a conveying surface by a rotary blade crossing the conveying surface. A holding device that is mounted on a cutting device that presses the object to be cut toward the conveying surface, and a plurality of leaf springs having different lengths are stacked in order of length with one end thereof substantially aligned, and A pair of leaf spring laminates arranged along a direction intersecting the conveyance direction of the object to be cut opposite to each other on an end side thereof, and the one end of the pair of leaf spring laminates, respectively. By providing a pair of holding members that oscillate along the stacking direction of the leaf spring laminate and a drive mechanism that drives the pair of leaf spring laminates and swings the pair of leaf springs, When the leaf spring laminate is swung toward the transport surface, the pair of plates The object to be cut and can be pressed toward the conveying surface at ne laminate, further, each of the leaf springs
The longest pair in the leaf springs that make up the laminate
Bent portion having a through hole at the other end of the longest leaf spring
The provided, both ends are inserted into the through hole of the leaf spring of the longest length
Are respectively connected to the pair of leaf spring laminates,
Along the axial direction of the through hole, relative to the two leaf spring laminates
It is movable and responds to the swing of the leaf spring laminate.
A long plate spring that elastically deforms is provided.

[0005]

[0006] The holding device according to the second aspect of the present invention is characterized in that :
1. The holding device according to 1, wherein the bent portion has a U-shape,
The U-shaped bottom is provided with the through hole.

[0007]

In the holding device according to the first aspect, when the driving mechanism drives the pair of leaf spring laminates and swings them toward the transport surface, the leaf spring laminate is moved to the object to be cut on the transport surface. Upon contact, they are elastically deformed, and apply a pressing force corresponding to the elastic deformation to the workpiece. This pressing force acts as a force for pressing the object to be cut against the conveying surface.

When the object to be cut has a semi-cylindrical sectional shape, the side of the leaf spring laminate away from the holding member is closer to the top of the object to be cut. Since the leaf spring laminates are laminated in order of length with one ends of a plurality of leaf springs having different lengths substantially aligned, the number of laminated leaf springs decreases as approaching the other end. Therefore, the leaf spring laminate is relatively soft on the other end side (= top side of the object to be cut) and relatively hard on the holding member side, so that the leaf spring laminate has a kamaboko-like shape of the object to be cut. Along the outer surface, it deforms as a whole as a mountain. Therefore, the leaf spring laminate exerts a pressing force not only in the vicinity of the top portion of the cut-like object but also in the hem side portion, so that, for example, in a direction parallel to the transport surface and perpendicular to the transport direction. The movement of all objects to be cut can be effectively regulated.

The kamaboko-like cross-sectional shape is, for example, a curved cross-sectional shape that is convex on the side away from the transport surface, such as a piece of fish divided along the spine, and is not necessarily an arc, ellipse, etc. It does not mean a well-formed shape. Only
The long leaf spring elastically deforms together with the leaf spring laminate.
The long leaf spring effectively presses near the top of the workpiece.
The workpiece can be held even better.
it can.

In the pressing device according to the second aspect, the bent portion provided at the end of the longest leaf spring has a U-shape, so that the contact between the bent portion and the object to be cut becomes smooth, and the bending is performed. The object to be cut is not excessively pressed at the portion.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, two embodiments of the present invention will be described (Embodiment 1) First, an outline of a cutting device 12 to which a holding device 10 of the present embodiment is mounted will be described.

As shown in FIG. 1, the cutting device 12 includes a carrier 14 disposed substantially horizontally, and the upper surface of the carrier 14 has a surface to be cut such as three pieces of fish pieces. It is a transport surface 16 on which the object H is transported. Workpiece H
By a feeding device (not shown) along the direction of arrow A,
For example, the sheet is intermittently conveyed every unit distance corresponding to the thickness of the cut. Further, the object to be cut H is cut to a thickness corresponding to the above unit distance by the rotary blade 18 which moves in the direction of the arrow C along the tip of the carrier 14 while rotating in the direction of the arrow B, and becomes, for example, a cut. . The holding device 10 is a device for pressing the cut object H against the transport surface 16 in order to hold the cut object H in an appropriate posture during cutting by the rotary blade 18. For this reason, the holding device 10 is
It is installed near the tip of the.

As shown in FIG. 2 and FIG.
0 designates a pair of leaf spring laminates 22a and 22b
A pressing member 26 having a structure in which a series of the pressing members 4 are provided is provided. As shown in FIG. 4, the leaf spring laminate 22a has leaf springs 28, 30, 32, 34, 36,
38 are laminated in order of length. A gap 29 is provided between the shortest leaf spring 28 and the next shortest leaf spring 30.
a is interposed, and a leaf spring 28 is provided.
A space corresponding to the gap 29a is formed between the first spring 30 and the leaf spring 30. The longest leaf spring 38 among the leaf springs 28 to 38 forming these leaf spring laminates 22a has a tip portion of U
A bent portion 40 is provided in a bent shape. At a portion corresponding to the U-shaped bottom of the bent portion 40, a through hole 42 penetrating from the inside to the outside is formed. A long leaf spring 44 is inserted into the through hole 42 so as to be relatively movable along the axial direction of the through hole 42. One end 44a of the long leaf spring 44 is connected to the leaf spring 28 and the leaf spring 30.
Is inserted in the gap 29a between the two. Further, although not shown in detail, the leaf spring laminate 22b is mirror-image-symmetric with the leaf spring laminate 22a, and the long leaf spring 44 is formed in a through hole formed in a bent portion 48 of the leaf spring laminate 22b. And the other end of the long leaf spring 44 is inserted into a gap formed in the leaf spring laminate 22b. Therefore, the leaf spring laminate 22a and the leaf spring laminate 22b are connected in series through the long leaf spring 44.

As shown in FIGS. 3 and 4, the ends of the leaf spring laminates 22a and 22b are respectively provided with two screws 49,
It is fixed to the holding arms 50a and 50b via 49. As a result, the holding arms 50a and 50b of the leaf springs 28 to 38 constituting the leaf spring laminates 22a and 22b are fixed ends, and the sides remote from the holding arms 50a and 50b are movable ends.

As shown in FIG. 2, the end of the holding arm 50a is pivotally supported by an arm support 54 via a pin 52, and can swing about the pin 52. Similarly, the end of the holding arm 50b is also pivotally supported by the arm support 58 via the pin 56, and can swing about the pin 56. The lower ends of these arm supports 54, 58
As shown in FIG. 3, it is fixed to a box-shaped frame 60, and as shown in FIG.
4, 58 and the frame 60, a substantially U-shaped support 62
Is configured.

The holding arms 50a and 50b have driving rods 6 disposed substantially in parallel with the arm supports 54 and 58 at the center of the arm supports 54 and 58, respectively.
4 and 66 are connected via pins 68 and 70, and the holding arm 50a and the driving rod 64, and the holding arm 50b and the driving rod 66 are relatively swingable about the pins 68 and 70, respectively. The drive rod 66 is rotatably connected via a pin 76 to an end on the short side of an L-shaped member 74 which is supported by the frame 60 via a pin 72. The end on the long side of the L-shaped member 74 is
Rod 80 of the air cylinder 78 attached to
Are rotatably connected via a pin 82.

On the other hand, in the middle part of the long side of the L-shaped member 74,
A horizontal rod 86 is rotatably connected via a pin 84. The other end of the horizontal rod 86 is rotatably connected via a pin 92 to one end of an L-shaped member 90 which is pivotally supported on the frame 60 via a pin 88.
A drive rod 64 is rotatably connected to the other end of the L-shaped member 90 via a pin 94.

With such a configuration, the air cylinder 78
Is extended, the driving rod 66 can be moved in the downward direction via the L-shaped member 74, and the driving rod 64 can be moved via the L-shaped member 74, the horizontal rod 86 and the L-shaped member 90. It can be moved in the descending direction. Further, the holding arms 50a, 50b are swung in the descending direction around the pins 52, 56, respectively, with the descending movement of the drive rods 64, 66.
As shown by a two-dot chain line in FIG.

As shown in FIG. 2 and FIG.
0 is mounted on the turning frame 100. The revolving frame 100 includes a pair of vertical frames 104a, 104
b is connected by a horizontal frame 106, and has a shape in which a U-shape is turned upside down. A shaft 108 provided at the center lower portion of the horizontal frame 106 is connected to a turning drive mechanism (not shown), and the turning drive mechanism can swing the turning frame 100 around a swing shaft 110. Swing arms 112a and 112b are attached to the vertical frames 104a and 104b, respectively, so as to be able to swing along a direction crossing the plane of FIG.
Cutting mechanism connecting bracket 1 is provided at the tip of 12a, 112b.
14a and 144b are fixed. In FIG. 3, the illustration of the cutting mechanism connecting brackets 114a and 144b is omitted. These swing arms 112a, 112
b is driven by a motor (not shown) accommodated in the revolving frame 100, and swings along a direction crossing the plane of FIG.

As shown in FIG. 2, a cutting mechanism (not shown in detail) for holding and driving the rotary blade 18 shown in FIG. 1 on the revolving frame 100 via cutting mechanism connecting brackets 114a and 144b. Are linked. The cutting mechanism 116 includes a swing shaft 110 together with the revolving frame 100.
And swings along the direction crossing the plane of FIG. 2 via the swing arms 112a and 112b. Therefore, the rotary blade 18 is also rotated around the pivot shaft 110 and in FIG.
Is swung along the direction crossing the plane of the drawing.

As shown in FIGS. 2 and 3, the vertical frames 104a,
4b, a pair of brackets 118a, 11
8b includes a cutting board member 120 having a notch 120a.
Is installed horizontally. The chopping board member 120 includes the rotary blade 1
8 is a member for supporting the object to be cut H below
The notch 120a is provided to allow the cutting edge of the rotary blade 18 to pass therethrough. Therefore, the vicinity of the cut portion of the workpiece H is supported by the cutting board member 120.

As shown in FIG. 2, a pair of V-groove rollers 1 are provided on the arm supports 54 and 58 of the holding device 10, respectively.
22a, 122b, 124a and 124b are mounted along the vertical direction. In addition, the turning frame 100 includes
Rails 126a, 126 having protrusions that align with the V-grooves of V-groove rollers 122a, 122b, 124a, 124b
b, 128a and 128b are fixed horizontally. As shown in FIG. 5, the rail 12 is located above the V-groove roller 124a.
8a is contacted with the convex portion facing downward, and the V-groove roller 124
A rail 128b abuts on the lower side of b with the convex part facing upward. Further, although not shown, the V-groove roller 1
On the upper side of the V-groove roller 122b, a rail 126a abuts with the convex portion facing downward.
b is in contact with the convex portion facing upward. Therefore,
The presser device 10 moves the rail 1
Although it is possible to move in parallel along 26a to 128b, movement in the vertical direction and in the direction perpendicular to the paper surface in FIG. 2 is restricted. Therefore, when the turning frame 100 is swung around the swing shaft 110, the holding device 10 is also swung similarly.

However, as shown in FIG.
Holding center (leaf spring laminate 22a and leaf spring laminate 22b
A pin 130 erected at the bottom of the holding device 10 in parallel with the swing shaft 110 directly below the intermediate point 26a)
It is inserted through a long hole 134 formed in a plate 132 fixed to the fourth side. The long axis of the long hole 134 substantially coincides with the transfer center 136 of the transfer table 14. Therefore, the pressing device 10 is allowed to move in parallel along the transport center 136, but is restricted from moving in a direction crossing the transport center 136.

With this configuration, when the revolving frame 100 swings about the swing shaft 110, the holding device 10 also swings. In the example of FIG. 6, the holding device 10 swings in the arrow F direction. , The turning frame 100 along the direction of arrow G
Is relatively translated with respect to. For this reason, the pressing center 26a of the pressing device 10 is always located on the transport center 136, and the workpiece H transported along the transport center 136 can be accurately pressed.

Next, the operation of the holding device 10 will be described. When the workpiece H is transported on the transport surface 16 of the transport table 14 (see FIG. 1), the air cylinder 78 is operated in a direction to extend the rod 80. As a result, the drive rods 64, 66 are lowered, and the holding arms 50a,
50b is swung downward about the pins 52 and 56. Therefore, the pressing member 26 is displaced to the side indicated by the two-dot chain line in FIG. 2 and presses the workpiece H toward the transport surface 16.

The leaf spring laminates 22a and 22b are relatively flexible and can be elastically deformed to a large extent as the number of leaf springs is reduced toward the tip end (= the holding center 26a side). For this reason, as shown in FIG. 7, the leaf spring laminates 22 a and 22 b are deformed into a mountain shape along the outer surface of the workpiece H, even if the workpiece H has a semi-cylindrical cross-sectional shape. Also, the long leaf spring 44 is elastically deformed like a mountain like the leaf spring laminates 22a and 22b. Therefore, the pressing force of the long leaf spring 44 is applied to the vicinity of the top of the cut-to-be-cut object H. 7 and exerts a pressing force, so that the movement of the workpiece H along the direction intersecting the transport direction as indicated by the arrow J in FIG. 7 can be effectively restricted. Thereby, the relative position between the workpiece H and the rotary blade 18 can be more appropriately maintained even during cutting, and a good cut surface can be obtained.

Since the bent portions 40 and 48 provided at the ends of the longest leaf spring 38 are U-shaped, the contact between the bent portion 40 and the workpiece H is smooth, and the bent portion 4 is formed.
At 0 and 48, the object H is not excessively pressed.
No.

[0028]

[0029]

[0030]

[0031] Having described embodiments, the present invention is not limited to this embodiment, it variously embodied without departing from the scope of the present invention. For example, in the above-described embodiment , the longest leaf spring is arranged on the transport surface side and the short leaf spring is laminated on the upper side, but it is needless to say that the same effect can be obtained even if this is reversed in the stacking order. Absent.

[0032]

As described above, according to the pressing device of the first aspect, even if the object to be cut has a semi-cylindrical cross-sectional shape, not only near the top of the object but also on the hem side. Since the pressing member can be brought into contact with the pressing member to apply the pressing force, the movement of the object to be cut along the direction parallel to the conveying surface and intersecting the conveying direction can be effectively restricted. At that time, the long plate
Since the neck elastically deforms together with the leaf spring laminate,
It is possible to effectively hold the area near the top of the object
Thus, the object to be cut can be more favorably pressed.

In the holding device according to the second aspect, the longest
The bent portion provided at the end of the leaf spring is U-shaped.
Therefore, the contact between the bent part and the workpiece becomes smooth,
The object to be cut is not excessively pressed at the barbed portion.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an outline of a cutting device to which a pressing device according to an embodiment is mounted.

FIG. 2 is a front view of the holding device of the embodiment.

FIG. 3 is a plan view of the pressing device of the embodiment.

4A and 4B are explanatory views of a holding member mounted on the holding device of the embodiment, wherein FIG. 4A is a plan view showing a state in which a long plate spring is partially cut away, and FIG. It is a front view of the state of a).

FIG. 5 is a partial cross-sectional view showing a contact state between a rail and a V-groove roller for connecting the pressing device of the embodiment and the turning frame.

6A and 6B are explanatory diagrams of a pressing center of the pressing device of the embodiment, and FIG. 6A is an explanatory diagram of a pressing center of the pressing device in a state where the revolving frame is not swung around the revolving axis, and FIG. )
FIG. 5 is an explanatory view of a pressing center of a pressing device when the turning frame is swung around a turning axis.

FIG. 7 is an explanatory diagram of an elastic deformation of the pressing member when the object to be cut having a cross section having a semi-cylindrical shape is pressed by the pressing device of the embodiment.

FIG. 8 is a diagram showing a state in which an object to be cut is held by a holding device of the related art.
FIG.

[Explanation of symbols]

10 ... holding device, 12 ... cutting device, 14 ...
Conveying table, 16: Conveying surface, 22a, 22b: Leaf spring lamination
Body, 26 ... pressing member, 40, 48, 204a ... bending part, 42 ... through hole, 44 ... long leaf spring, 44a, 44b ... end, 50a, 50b ... · Holding arms (holding members), 52, 56 ... pins (drive mechanisms), 54, 58 ... arm supports (drive mechanisms), 64, 66 ... drive rods (drive mechanisms), 68 ... Pin (drive mechanism), 72: pin (drive mechanism), 74: L-shaped member (drive mechanism), 76: pin (drive mechanism), 78: air cylinder (drive mechanism), 80 ... rod (drive mechanism), 82 ... pin (drive mechanism), 84 ... pin (drive mechanism), 86 ... horizontal rod (drive mechanism), 88 ... pin (drive mechanism), 90: L-shaped member (drive mechanism), 92: pin (drive mechanism), 94: pin (Drive mechanism), H · · · object to be cut.

Claims (2)

(57) [Claims] 1. A holding device mounted on a cutting device for cutting an object to be cut conveyed on a conveying surface along a direction crossing the conveying surface, and pressing the object to be cut toward the conveying surface. A plurality of leaf springs having different lengths are stacked in order of length with one end substantially aligned, and are opposed to each other on the other end side along a direction intersecting the conveying direction of the object to be cut. A pair of disposed leaf spring laminates, and a pair of holding members that respectively hold the one end of the pair of leaf spring laminates so as to be swingable along the laminating direction of the leaf spring laminate. And a drive mechanism for driving the pair of leaf spring laminates to swing the pair of leaf spring laminates when the pair of leaf spring laminates are pivoted toward the transport surface. the object to be cut and can be pressed toward the conveying surface at the body, further, upper It in leaf springs constituting each leaf spring stack
At the other end of a pair of longest leaf springs
A bent portion having a through hole is provided, and both ends are inserted through the through hole of the longest leaf spring.
The shaft of the through hole is connected to the pair of leaf spring laminates, respectively.
Relative to the above two leaf spring laminates along the direction
And elastic deformation according to the swing of the leaf spring laminate.
A presser device provided with a long leaf spring. 2. The U-shaped bent portion, wherein the U-shaped bottom is formed.
The holding device according to claim 1, wherein the through hole is provided in a portion .