JP4154076B2 - Cut sheet clamp frame - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cut sheet clamp frame, and more particularly to a cut sheet clamp frame in which the size of an opening can be adjusted and the periphery of the cut sheet is clamped by a clamp mechanism disposed at the periphery of the opening.
[0002]
[Prior art]
In the conventional cut sheet clamp frame, there are a substantially U-shaped fixed frame and a movable frame supported on one side of both wing sides of the frame and capable of moving forward and backward toward the base side of the frame. The blow plate is advanced and retracted with respect to the base of the frame, and the size of the opening surrounded by the frame and the blow plate is adjusted according to the size of the cut sheet.
And the periphery of the said cut sheet is clamped by the clamp mechanism arrange | positioned at the periphery of the said opening.
[0003]
[Problems to be solved by the invention]
In the conventional resin sheet clamp frame described above, since the movable frame is supported on one surface side of the fixed frame, the periphery of the opening is not flush with the periphery of the cut sheet. It was difficult to clamp to one.
The present invention has been made in view of the above problems, and an object thereof is to provide a cut sheet clamp frame capable of adjusting the size of the opening and clamping the edge of the cut sheet flush with each other.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is a cut sheet clamp frame in which the size of the opening can be adjusted and the periphery of the cut sheet is clamped by a clamp mechanism arranged at the periphery of the opening. The fixed frame placed on the front and back sides in the depth direction, and the edge on the front and back sides in the depth direction can be moved in the width direction at the edge of the fixed frame. A first movable frame that is supported so as to be flush with the frame and adjusts the opening width, and moves in the depth direction in close contact with the fixed frame and the first movable frame, and the opening length And a second movable frame for adjusting the angle.
In the invention according to claim 1 configured as described above, the edges on the near side and the back side in the depth direction are arranged in the width direction at the edges of the fixed frame disposed on the near side and the back side in the depth direction. The movable first movable frame is supported so as to be flush with the fixed frame to adjust the opening width.
[0005]
The second movable frame is substantially in close contact with the fixed frame and the first movable frame, and moves in the depth direction to adjust the opening length.
As described above, when the size of the opening is adjusted, the clamp mechanism arranged flush with the periphery of the opening clamps the periphery of the cut sheet.
The clamp mechanism may be any one that is disposed on the periphery of the opening and can clamp the periphery of the cut sheet, and cuts between the fixed frame, the first movable frame, and the second movable frame. A sheet may be sandwiched and clamped, or a cut sheet may be sandwiched and clamped.
[0006]
The cut sheet referred to here is a resin sheet processed to a desired size, and is limited by the material, characteristics, application, and the like from the viewpoint that the periphery can be clamped by the clamping mechanism. All cut sheets are included.
The fixed frame only needs to be arranged on the front side and the back side in the depth direction, and the opening is formed only by the first movable frame and the second movable frame. Alternatively, the opening may be formed including a wall surface formed in the depth direction in addition to the first movable frame and the second movable frame.
[0007]
As an example of the configuration of the fixed frame in the former case, the invention according to claim 2 is the cut sheet clamp frame according to claim 1, wherein the fixed frame faces the first movable frame. On the side, the front side and the rear side in the depth direction are connected in a substantially U shape.
In the invention according to claim 2 configured as described above, the fixing having a substantially U-shape in which the front side and the back side in the depth direction are connected on the side facing the first movable frame. The expression frame forms the opening by the base and both wing sides, and the first movable frame and the second movable frame.
[0008]
The first movable frame can be moved in the width direction between the front and back edges in the depth direction at the edge of the fixed frame and supported so as to be flush with the fixed frame. The opening width may be adjusted, and the opening may be formed on one edge of the fixed frame, or the opening may be formed at a desired position on the fixed frame. It may be formed.
As an example of the configuration of the first movable frame in the latter case, the invention according to claim 3 is the cut sheet clamp frame according to claim 1, wherein the first movable frame is arranged in the width direction. A pair is arranged so as to be movable while facing each other.
In the invention according to claim 3 configured as described above, the pair of first movable frames arranged so as to be movable while facing the width direction move in the same width direction, so that the fixed type The opening width is adjusted at a desired position in the frame.
[0009]
As an example of the configuration of the first movable frame, the invention according to claim 4 is the cut sheet clamp frame according to any one of claims 1 to 3, wherein the first movable frame is the first movable frame. Is configured by laminating a plurality of blow plates, and is configured to adjust the opening width by sliding so as to change the degree of overlap.
In the invention according to claim 4 configured as described above, the plurality of blow plates which are stacked to form the first movable frame slide and adjust the opening width while changing the overlapping degree.
At this time, in order to support the first movable frame so as to be flush with the fixed frame, an additional configuration may be added between the fixed frame and each blow plate.
[0010]
As an example of the configuration in this case, the invention according to claim 5 is the cut sheet clamp frame according to claim 4, wherein the blow plate is disposed between the fixed frame and each blow plate in the width direction. The structure is provided with a guide structure for guiding to the outside.
In the invention according to claim 5 configured as described above, the guide structure formed between the fixed frame and each blow plate is such that the blow plate is flush with the fixed frame. To the width direction.
Here, the guide structure may be an uneven structure formed between the fixed frame and each blow plate and engageable with each other, or a guide groove capable of accommodating each blow plate in the depth direction. May be formed on the fixed frame.
[0011]
In addition, each blow plate only needs to be able to change the overlap of each other, so that each blow plate may be moved to each other, and other blow plates may be moved together by moving a predetermined blow plate. It may be.
As an example of the configuration of the blow plate in the latter case, the invention according to claim 6 is the cut sheet clamp frame according to claim 4 or 5, wherein the blow plates are arranged so as to be interlocked with each other. The blow plate supported so as to be flush with the fixed frame has a drive mechanism for driving in the width direction.
In the invention according to claim 6 configured as described above, when the blow plate supported by the drive mechanism so as to be flush with the fixed frame is driven in the width direction, the blow plate is interlocked with the blow plate. The other blower plates also move and change their overlap.
[0012]
Note that the drive mechanism is not limited from the viewpoint that the blow plate supported so as to be flush with the fixed frame can be driven in the width direction, so a gear mechanism is used. It may be one that uses a hydraulic pressure or an air pressure.
Further, disposing each blow plate so as to be interlocked with each other may be a combination of the respective blow plates, or merely restricting the movable range of each blow plate so that they can be interlocked with each other. Also good.
As described above, when the opening width is adjusted by sliding the plurality of blow plates while changing the overlapping degree, when the opening width is increased, the first movable frame is removed from the edge of the fixed frame. The first movable frame adjusts the opening width by moving in the width direction, although it is a good example in that the space around the cut sheet clamp frame can be effectively used. From the viewpoint of being able to do so, the present invention is not limited to this configuration, and it is also possible to apply a first movable frame formed in a single substantially plate shape.
[0013]
The second movable frame only needs to adjust the opening length by moving in the depth direction in close contact with the fixed frame and the first movable frame. The opening may be formed on either the rear side or the rear side, or the opening may be formed at a desired position on the fixed frame.
As an example of the configuration of the second movable frame in the latter case, the invention according to claim 7 is the cut sheet clamp frame according to any one of claims 1 to 6, wherein the second movable frame is the second movable frame. A pair of frames are arranged so as to be movable while facing each other on the near side and the far side in the depth direction.
[0014]
In the invention concerning Claim 7 comprised as mentioned above, the 2nd movable frame arrange | positioned so as to be able to move while facing each other on the near side and the far side in the depth direction is mutually in the same depth direction. By moving, the opening length is adjusted at a desired position in the fixed frame.
Note that the second movable frame only needs to be moved while being in close contact with the fixed frame and the first movable frame. For example, the second movable frame is formed thinly. It is also possible to make the periphery of the opening flush by providing an additional configuration such as arranging a tapered shape so as to become thinner toward the opening.
[0015]
【The invention's effect】
As described above, the present invention can provide a cut sheet clamp frame capable of adjusting the size of the opening and clamping the edge of the cut sheet flush with each other.
According to the second aspect of the present invention, the opening can be formed only by the fixed frame, the first movable frame, and the second movable frame.
[0016]
Further, according to the invention of claim 3, the opening width can be adjusted at a desired position in the fixed frame.
According to a fourth aspect of the present invention, when the opening width is increased, the first movable frame is less likely to protrude outward from the edge of the fixed frame, and the periphery of the cut sheet clamp frame The space in can be used effectively.
[0017]
Furthermore, according to the fifth aspect of the present invention, the blow plate can be reliably guided in the width direction so as to be flush with the fixed frame.
Furthermore, according to the invention concerning Claim 6, since it becomes possible to change the overlap of each blow plate only by moving a predetermined blow plate, a structure can be simplified.
Furthermore, according to the invention concerning Claim 7, the said opening length can be adjusted in the desired position in the said fixed frame.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an appearance of a cut sheet clamp frame according to an embodiment of the present invention.
Hereinafter, in the figure, the upper right side and the lower left side are respectively referred to as the right side and the left side, and the lower right side and the upper left side are respectively referred to as the front side and the rear side.
[0019]
The cut sheet clamp frame 10 includes a frame 20 having a substantially rectangular opening 20 a, a slide plate 30 disposed on the upper surface of the frame 20, and a blow plate unit 40 disposed on the opening 20 a of the frame 20. In addition, by sliding the slide plate 30 in the front-rear direction, the blow plate unit 40 is expanded and contracted in the left-right direction, so that a part of the opening 20a is shielded and the size of the opening A is adjusted.
Here, the frame 20 having the substantially rectangular opening 20a, the slide plate 30 that slides in the front-rear direction, and the blow plate unit 40 that expands and contracts in the left-right direction in this sense, A first movable frame and a second movable frame are configured.
[0020]
Further, the periphery of the opening A in the frame 20, the front edge of the slide plate 30, and the left edge of the blow plate unit 40 can be attached with the clamp mechanism 50, and the size of the opening A as described above. Is adjusted, the clamp mechanism 50 is attached to each part, and the periphery of the supplied cut sheet is clamped.
Female screw holes 31 having openings in the front-rear direction are formed at both left and right ends of the slide plate 30. The drive motor 32 is connected to one end and the other end is supported by both front corners of the frame 20. 33 is screwed while being inserted into the female screw hole 31.
[0021]
With this configuration, when the ball screw 33 is rotated in one direction by the drive motor 32, the slide plate 30 gradually moves forward to shorten the length of the opening A. On the other hand, when the ball screw 33 is rotated in the reverse direction, the slide plate 30 gradually moves backward to increase the length of the opening A.
The front edge of the slide plate 30 has a tapered shape so as to gradually become thinner toward the front, and is flush with the frame 20 and the blow plate unit 40 at the opening A.
For this reason, when the clamp mechanism 50 is attached and the cut sheet is clamped, the periphery of the cut sheet can be clamped in a flush state.
[0022]
As shown in FIG. 2, the blow plate unit 40 moves the three blow plates 41 to 43 having a substantially rectangular shape stacked in the thickness direction and the blow plate 41 disposed on the top in the left-right direction. And a drive mechanism 44 capable of this.
The right side 21 of the frame 20 is formed to be recessed downward, and a blow plate 43 arranged at the bottom is attached to the upper surface of the right side 21 as shown in FIG.
As shown in the figure, a guide pin 21 a is fixed to the right side 21 so as to protrude upward. The guide pin 21 a is formed in a guide groove 43 a formed in the left-right direction on the lower surface of the blow plate 43. Contained.
Similarly, a guide pin 43 b fixed so as to protrude upward on the left side of the blow plate 43 is accommodated in a guide groove 42 a formed in the left-right direction by the blow plate 42 in the middle, and the left side of the blow plate 42. The guide pin 42b fixed so as to protrude upward is accommodated in a guide groove 41a formed in the left-right direction on the lower surface of the blow plate 41.
[0023]
Further, in the drive mechanism 44, female screw holes 44 a and 44 a having openings in the left-right direction are formed on the lower surface side of the blow plate 41, and the drive motors 44 b and 44 b are connected to one end and the other end of the frame 20 is connected. Ball screws 44c, 44c supported at both corners of the left side 22 are screwed together while being inserted into the female screw holes 44a, 44a.
With this configuration, when the ball screws 44c and 44c are rotated in one direction by the drive motors 44b and 44b, the blow plate 41 gradually moves to the left, and the opening 20a of the frame 20 is moved up and down by the blow plates 41 to 43. The width of the opening A is narrowed while shielding.
On the other hand, when the ball screws 44c and 44c are rotated in the reverse direction, the blow plate 41 gradually moves to the right and widens the opening A while shielding the opening 20a in the vertical direction by the blow plates 41 to 43. .
[0024]
As shown in FIG. 4, flange-shaped guide projections 41 c to 43 c are respectively formed on the front and rear side surfaces of each blow plate 41 to 43, and on the side surfaces of both front and rear sides 23, 23 of the frame, Guide grooves 23a-23c that can accommodate the guide protrusions 41c-43c are formed in the left-right direction.
With this configuration, when the blow plate 41 is moved by the drive motors 44b and 44b, the blow plates 41 to 43 slide in a substantially horizontal direction.
At this time, since the upper surface of the blow plate 41 is flush with the upper surface of the frame 20, interference between the blow plate 41 and the slide plate 30 is prevented.
For example, as shown in FIG. 5, when the blow plate 41 is on the right side of the frame 20, that is, on the upper side in the figure, the width of the opening A is the maximum.
[0025]
Further, the ball screws 44c and 44c are rotated around the axis by the drive motors 44b and 44b, and the guide grooves 41a to 43a are respectively guided by the guide pins 21a, 42b and 43b, and the guide protrusions 41c to 43c are guided to the guide grooves 23a to 23c. As shown in FIGS. 6 and 7, the width of the opening A is gradually reduced when the blow plates 41 to 43 are moved toward the left side 22 of the frame 20. Go.
Therefore, the flange-shaped guide protrusions 41c to 43c formed on the front and rear side surfaces of each blow plate 41 to 43 and the guide grooves 23a to 23c formed on the side surfaces of the front and rear sides 23 and 23 of the frame 20 mean this. Thus, the guide structure referred to in the present invention is configured.
[0026]
Thus, after the size of the opening A is adjusted, a clamp mechanism 50 as shown in FIG. 8 is attached to the periphery of the opening A as shown in FIG.
The clamp mechanism 50 includes a lower clamp control shaft 52 that is rotatably supported by a shaft support piece 51 fixed to the periphery of the opening A, and a plurality of clamps that are attached to the lower clamp control shaft 52 and configured by leaf springs. And a piece 53.
A lever 55 connected to the rod 54a of the air cylinder 54 is attached to the lower clamp control shaft 52, and the clamp piece 53 adds the lower clamp control shaft 52 from the axial direction as shown in FIG. It is possible to increase or decrease by removing or removing.
[0027]
With such a configuration, the rod 54a is pulled by the air cylinder 54, the lever 55 is tilted toward the air cylinder 54, and the clamp pieces 53 are separated from the upper surfaces of the blow plate 41 and the slide plate 30. Supply.
Here, when the air cylinder 54 is driven to extend the rod 54a, the lever 55 rises in a direction away from the air cylinder 54 and the lower clamp control shaft 52 rotates in a predetermined direction. Are pressed against the upper surfaces of the blow plate 41 and the slide plate 30.
Therefore, the periphery of the cut sheet supplied to the opening A is clamped by the clamp mechanism 50 as shown in FIG.
[0028]
In the present embodiment, one set of blow plate units 40 is arranged in the frame 20, but as shown in FIG. 10, two sets of blow plate units 40 can be arranged in the frame 20.
That is, the respective blow plate units 40 are arranged so that the blow plates 41 arranged at the top and forming the periphery of the opening A face each other, and as shown in FIG. The size of the opening A is adjusted by moving the slide plate 30 in the horizontal direction in FIG.
Then, the position where the opening A is formed is not limited to the predetermined position of the frame 20 as in the case of the present embodiment, and the opening A can be formed at any position in the frame 20.
[0029]
Moreover, although the slide plate 30 concerning this embodiment is one piece, as shown in FIG. 12, a pair of slide plates 30 are also arranged so as to oppose each other, and as shown in FIG. The size of the opening A is adjusted by moving each slide plate 30 in the horizontal direction in the figure.
Then, since the area of the opening 20a to be shielded by the slide plates 30 and 30 can be reduced, it is necessary when the slide plate 30 is retracted to the outside by reducing the width in the forward / backward direction. Space can be reduced.
[0030]
Next, the operation | movement at the time of making a cut sheet clamp to the cut sheet clamp frame 10 concerning this embodiment is demonstrated.
The operator rotates the ball screws 44c and 44c by the drive motors 44b and 44b, thereby gradually moving the blow plate 41 to the left while keeping the upper surface flush with the upper surface of the frame 20.
Then, the guide grooves 41a to 43a are respectively guided by the guide pins 21a, 42b, and 43b, and the guide protrusions 41c to 43c are guided along the guide grooves 23a to 23c. The opening A is narrowed to a desired width while shielding the opening 20a in the vertical direction.
[0031]
On the other hand, by rotating the ball screw 33 by the drive motor 32, the slide plate 30 is gradually moved forward to narrow the opening A until it reaches a desired length.
Then, the clamp mechanism 50 is attached to the upper surface of the periphery of the opening A, the rod 54a is pulled in by the air cylinder 54, the lever 55 is tilted toward the air cylinder 54, and the clamp pieces 53 are separated from the upper surfaces of the blow plate 41 and the slide plate 30. In this state, the cut sheet is supplied to the opening A.
[0032]
Here, when the air cylinder 54 is driven to extend the rod 54a, the lever 55 rises in a direction away from the air cylinder 54 and the lower clamp control shaft 52 rotates in a predetermined direction. Are pressed against the upper surfaces of the blow plate 41 and the slide plate 30, and the periphery of the cut sheet is clamped by the clamp mechanism 50.
In this manner, the ball screws 44c and 44c are rotated by the drive motors 44b and 44b, and the blow plate 41 is gradually moved to the left while the upper surface is flush with the upper surface of the frame 20, so that the opening A is opened by the blow plates 41 to 43. And the ball screw 33 is rotated by the drive motor 32, the slide plate 30 is gradually moved forward to narrow the opening A to a desired length, and the clamp mechanism 50 is moved to the opening A. Since it attaches to a peripheral upper surface and clamps the periphery of a cut sheet, it becomes possible to adjust the magnitude | size of an opening and to clamp the edge part of a cut sheet flush.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an appearance of a cut sheet clamp frame according to an embodiment.
FIG. 2 is a perspective view showing an appearance of a blow plate unit.
FIG. 3 is a side view showing a configuration between blow plates.
FIG. 4 is a front view showing a configuration of a blow plate unit.
FIG. 5 is a plan view showing a situation when the opening is maximized.
FIG. 6 is a plan view showing a situation when the opening is of a medium size.
FIG. 7 is a plan view showing a situation when the opening is minimized.
FIG. 8 is a perspective view showing an external appearance of a clamp.
FIG. 9 is a partial perspective view showing a situation when the periphery of the cut sheet is clamped by the clamp.
FIG. 10 is a plan view showing an appearance of a cut sheet clamp frame according to a modification.
FIG. 11 is a plan view showing a situation when the slide plate and each blow plate are moved by the cut sheet clamp frame.
FIG. 12 is a plan view showing an appearance of a cut sheet clamp frame according to another modified example.
FIG. 13 is a plan view showing a situation when the slide plate and each blow plate are moved by the cut sheet clamp frame.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Cut sheet clamp frame 20 ... Frame 20a ... Opening 21a ... Guide pin 23a-23c ... Guide groove 30 ... Slide plate 40 ... Blow plate unit 41-43 ... Blow plate 41a-43a ... Guide groove 41c-43c ... Guide protrusion 42b 43b ... guide pin 44 ... drive mechanism 50 ... clamp A ... opening

Claims (7)

A cut sheet clamp frame that can adjust the size of the opening and clamps the periphery of the cut sheet with a clamp mechanism arranged at the periphery of the opening,
A fixed frame disposed on the near side and the far side in the depth direction;
A first edge that adjusts the opening width by being able to move the front and back edges in the depth direction in the width direction at the edge of the fixed frame and being supported to be flush with the fixed frame. A movable frame of
A cut sheet clamp frame comprising: the fixed frame and a second movable frame that adjusts an opening length by moving in a depth direction in close contact with the first movable frame. In the cut sheet clamp frame according to claim 1,
The cut-sheet clamp frame according to claim 1, wherein the fixed frame has a substantially U-shape in which a front side and a back side edge in the depth direction are connected on the side facing the first movable frame. In the cut sheet clamp frame according to claim 1,
The cut sheet clamp frame according to claim 1, wherein a pair of the first movable frames are arranged so as to be movable while facing the width direction. In the cut sheet clamp frame according to any one of claims 1 to 3,
The first movable frame is configured by stacking a plurality of blow plates, and is slid so as to change an overlapping degree to adjust an opening width. In the cut sheet clamp frame according to claim 4,
A cut sheet clamp frame characterized in that a guide structure for guiding the blow plate in the width direction is provided between the fixed frame and each blow plate. In the cut sheet clamp frame according to claim 4 or 5,
Each of the blow plates is disposed so as to be interlocked with each other, and the blow plate supported so as to be flush with the fixed frame includes a drive mechanism for driving in the width direction. In the cut sheet clamp frame according to any one of claims 1 to 6,
The cut sheet clamp frame, wherein the second movable frame is disposed in a pair so as to be movable while facing each other on the near side and the far side in the depth direction.

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