JP3369452B2 - Sheet material transfer table - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material conveying table for setting a sheet material from an original carriage and feeding it to a clamp device before feeding the sheet material to a forming die, and more particularly to a sheet. The present invention relates to a sheet material transport table whose dimensions can be changed according to the external dimensions of the material.

[0002]

2. Description of the Related Art For example, an insulator dash mounted on the interior side of a dash panel of an automobile is composed of a laminated structure of a sound insulating material and a sound absorbing material. As the sound insulating material, a skin sheet having thermoplasticity is used. As the material, a bulky nonwoven fabric, felt, or the like is used. After being softened by heating in separate heating furnaces, they are fed into a press die and formed into a desired shape by press forming.

Usually, as shown in FIG. 12, a sheet material S for a skin material loaded on a truck 1 is vacuum-chucked,
Alternatively, it is placed on the transport table 2 by a needle chuck or the like, the transport table 2 is transported to a predetermined position, the peripheral edge of the sheet material S is held by the clamp device 3, and then the molding die 5 is passed through the heating furnace 4 The sheet material S is supplied, and although not shown in the drawing, the material webs of the sound absorbing material layer are superposed on each other and the press die 5 is pressed.
Press molding is performed by.

Usually, as shown in FIG. 13, the clamp allowance d of the sheet material S stacked on the transport table 2 is set to about 20 mm, and the clamp allowance d is grasped by the clamp device 3. Usually, it is necessary to use the transport table 2 having a size smaller than the outer dimension of the sheet material S by the clamp margin d.

[0005]

As described above, conventionally, the transport table 2 for setting the sheet material S from the carriage 1 is
In order to secure the clamping margin d of the clamping device 3, the transport table 2 having a size slightly smaller than the supplied sheet material S is used, but the outer shape of the molded product, that is, the outer dimension of the sheet material S is changed. In this case, it is necessary to replace the transfer table 2 with a different size each time. In the replacement work, the large transfer table 2 cannot be replaced by one person alone, and depending on the machine, the transfer table 2 can be replaced by a skilled worker. In addition, there is a problem that a lot of time and man-hours are spent for the replacement work.

Further, according to the change of the sheet material S or the like to be supplied, for example, as shown in FIG.
It is also practiced that the expansion piece 6 is attached to the peripheral edge of the expansion piece via the hinge 6a, and the expansion piece 6 is unfolded or returned to the base and applied to a set of two kinds of sheet materials. Is troublesome, and when the expansion piece 6 is returned to the base, it is easy to interfere with each other, the end of the sheet material S is easily corrugated, and when the clamp device 3 clamps, defective clamping occurs. It had been.

The present invention has been made in view of the above circumstances, and various sizes of sheet materials are set in a sheet material conveying table for setting the sheet material from the original carriage and delivering it to the clamp device. Accordingly, it is an object of the present invention to provide a sheet material transport table in which the outer dimensions of the transport table can be changed to appropriate dimensions, and the conventional cumbersome table replacement work is unnecessary.

[0008]

In order to achieve the above object, according to the present invention, a movable plate divided into four along an outer peripheral edge of a rectangular table base is provided along a diagonal line of the table base. based together are installed movably in the direction toward or away from, little of the 4 divided movable plate
At least one movable plate on the diagonal of the table base
Drive means for contracting and expanding the movable plate along
The movable plate divided into four is connected to one side of the adjacent movable plates by providing a stopper piece that is joined to the side edge of the other side when the movable plates contract and expand .
It is characterized by contracting or expanding operation .

Here, as the sheet material to which the present invention is applied, a molded non-woven fabric using a thermoplastic resin as a binder, a felt, a rubber sheet, a soft sheet such as a resin sheet can be generally applied.

The table base has a rectangular shape, and the material is not particularly limited as long as it is lightweight and has an appropriate shape retention property such as veneer plywood or resin plate.

The four-divided movable plate installed on the outer periphery of the table base is made of a resin plate, a metal plate, or the like, and the substantially L-shaped four-divided movable plate is on the diagonal line of the table base. The movable plates adjacent to each other can be brought into contact with and separated from each other, and the movable plates on one side are provided with stopper pieces that are joined to the side edges of the movable plates on the other side when the movable plates contract and expand. . That is, when each movable plate is expanded along a diagonal line, if the adjacent movable plates are aligned with each other through the stopper piece, a substantially rectangular transport table can be obtained at a predetermined expansion position. .

Similarly, the contraction operation of the movable plates is the reverse, and when the movable plates are contracted, if the adjacent movable plates are aligned with each other via the stopper piece, the movable plates contract to a predetermined contracted position. .

The expansion and contraction operations of the movable plate may be performed manually, but in this case, a guide mechanism is provided on the back surface of each movable plate and the back surface of the table base to expand along the predetermined expansion direction. The guide mechanism may be provided with a lock mechanism utilizing sliding resistance so that the guide mechanism can be locked at a predetermined position.

As a method of driving the movable plate, a fluid pressure cylinder such as an air cylinder or a hydraulic cylinder, or a driving means such as a feed screw mechanism may be used.
The driving means may be arranged on each of the movable plates, but for the sake of efficiency and simplification of the structure, only one of the movable plates is provided with a driving means for expansion, and the diagonally opposite diagonal line. It is structurally preferable to dispose the contracting drive means on the opposite side where they are located.

Further, when the expanding direction of each movable plate is determined, the expanded transport table has a similar shape to that of the contracted table, but the expanding direction of the movable plate can be varied to expand to a non-similar shape. Is possible. As a means for changing the expansion direction of the movable plate at this time, for example, when using an air cylinder, the air cylinder may be installed on the back surface side of the table base so as to be rotatable within a predetermined rotation range. .

As is clear from the above structure, four movable plates are arranged along the peripheral edge of the table base, and each movable plate can be expanded or contracted along the diagonal line of the table base. Therefore, if the movable plate is pulled out from the table base in the expansion direction according to the outer dimensions of the sheet material to be used, a transport table having an appropriate dimension can be obtained, and the peripheral edge of the sheet material can be properly set without hanging down. Therefore, it is possible to eliminate the conventional laborious work of exchanging another transport table each time the outer dimension of the sheet material is changed.

Further, since a fluid pressure cylinder and a feed screw mechanism are provided as driving means for the movable plate, and a stopper piece joined to the side edge of the other side is formed on one side of the adjacent movable plate, the drive is performed. The movable plate can be automatically expanded by operating the means, and conversely, if the drive means is used for contraction, the contracting motion can be automatically performed, and the movable plate around the table base is moved by a predetermined stroke amount. It can automatically expand and contract without human intervention.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a sheet material conveying table according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a plan view showing an embodiment of a carrying table according to the present invention, FIGS. 2 to 4 are sectional views showing the internal structure of the carrying table, and FIG. 5 shows the carrying table in an expanded state. The plan views and FIGS. 6A and 6B are partial plan views showing a modification of the movable plate. 7 and 8 are plan views and cross-sectional views showing another embodiment of the carrying table according to the present invention, and FIGS. 9 to 11 are plan views showing still another embodiment of the carrying table according to the present invention. FIG.

A first embodiment of the carrying table according to the present invention will be described with reference to FIGS.

Referring to FIG. 1, a transport table 10 according to the present invention has a rectangular table base 20 and a movable plate 3 divided into four parts arranged around the table base 20.
0 (for convenience, the description will be made separately from 31, 32, 33, 34).

Then, the transport table 10 according to the present invention.
Is a movable plate 3 divided into four around the table base 20.
0 can be stored in the minimum size and in the expanded state in which the movable plate 30 is expanded along the diagonal line of the table base 20. Any external size can be taken, and the size of the sheet material used can be easily changed. It is possible to eliminate the troublesome work of exchanging the transfer table.

The table base 20 is a plywood board,
The movable plate 30 may be made of a metal plate, a resin plate or the like as long as it is lightweight and has an appropriate shape retention property such as a resin plate or a fiber plate. The movable plates 31, 32, 33, 34 divided into four
Of these, an air cylinder 40 is installed on the first movable plate 31 as a driving means.

That is, the air cylinder 40 is attached to the back surface of the table base 20 via the bracket 41, and the tip of the piston rod 42 of the air cylinder 40 is fixed to the flange 311 of the movable plate 31.
The table base 20 is expanded and contracted by the air cylinder 40.
The movable plate 31 slides on and off the table base 20 along the diagonal line.

The movable plate 30 is configured such that the two movable plates 32 and 33 adjacent to the movable plate 31 on which the air cylinder 40 is installed are adjacent to the movable plate 31 on the drive side.
A recess 312 is formed in each of the movable plates 32 and 33, and stopper plates 323 and 333 are respectively formed in the movable plates 32 and 33 which are adjacent to each other so as to be fitted into the recess 312.
The movable plates 32 and 33 adjacent to 1 have an interference structure.

Further, with respect to the movable plates 32 and 33 and the remaining movable plate 34, recesses 322 and 33 are formed in the movable plates 32 and 33.
2 is formed, and the movable plate 34 is provided in the recesses 322 and 332.
The stopper piece 343 of FIG.

Therefore, by driving the air cylinder 40,
If the first movable plate 31 expands diagonally, the movable structure of the movable plates 32, 33 adjacent to each other and the movable plate 34 located diagonally due to the interference structure of the movable plates 31, 32, 33, 34 divided into four. Move along with each movable plate 31, 32, 3
The conveyance table 1 shown in FIG.
0 will be obtained.

Thus, the transport table 1 according to the present invention.
According to 0, the movable plates 31, 32, 33, 3 divided into four
4 indicates that the movable plates 30 adjacent to each other are substantially rectangular when the transport table 10 is contracted (see FIG. 1) and expanded (see FIG. 5) by the stopper pieces 323, 333, 343. Since the sheet material is regulated, even if the outer dimension of the sheet material is changed, the peripheral edge portion of the sheet material does not hang down and can be held well.

In addition, the movable plate 3 as in the above-described embodiment.
As an expansion operation of 0, the movable plate 31 slides by the operation of the air cylinder 40, and then the adjacent movable plates 32 and 33 move, and finally, the movable plate 34 positioned diagonally to the movable plate 31. Is completed by expanding operation, but when returning from the expanded position shown in FIG. 5 to the contracted position shown in FIG. 1, the air cylinder 43 installed on the movable plate 34 is driven as shown in FIG. This air cylinder 43
Is fixed to the back surface side of the table base 20 via a bracket 44, and the piston rod 45 of the air cylinder 43 is fixed to the flange 341 of the movable plate 34, so that the air cylinder 43 contracts. , The movable plates 34 and 3 adjacent to the movable plate 34 after the movable plate 34 is retracted to a predetermined storage position, which is opposite to the expanding operation.
3 contracts, and finally the movable plate 31 contracts, whereby the contracted state of the movable plate 30 shown in FIG. 1 is obtained.

The two movable plates 31 and 34 located at diagonal positions of the table base 20 have the air cylinder 4
Although the movable plates 31 and 34 are supported and guided by 0 and 43, an air cylinder that moves the movable plates 32 and 33 adjacent to the movable plates 31 and 34 forward and backward may be installed, but the structure of the transport table 10 is simplified. In that sense, a guide mechanism may be provided.

That is, the structure of the movable plate 32 will be described, and the description of the movable plate 33 on the other side will be omitted because it is the same, but as shown in FIG. 4, the guide rod 50 is provided on the flange 321 of the movable plate 32. The table base 20
A support portion 51 that extends on the side substantially parallel to the table base 20 and accommodates the guide rod 50 is attached to the back surface of the table base 20.

Therefore, the guide rod 50 is attached to the support portion 5
When 1 is accommodated and supported, the movable plate 32 performs extension / contraction operations along the diagonal line of the table base 20 along the axial direction of the guide rod 50.

As described above, according to the first embodiment of the present invention, of the movable plates 30 divided into four with respect to the table base 20, the movable plates 31 and 34 at diagonal positions are respectively air cylinders. 40 and 43 are arranged, and for the remaining movable plates 32 and 33 on the diagonal line, a guide mechanism including a guide rod 50 and a support portion 51 is arranged. At the time of expansion operation, first, the air cylinder 40 is operated to move the movable plates. 31 is expanded, and then the movable plates 32, 33,
34 is expanded, and at the time of contraction operation, first, the air cylinder 43 is operated to contract the movable plate 34, and then the movable plates 32 and 33 and the movable plate 3 that are adjacent to each other are successively arranged.
1 is contracted, but all the movable plates 30 may be manually pulled out and stored. In that case, the guide mechanism shown in FIG. 4 is used for each movable plate 30 (31, 3).
2, 33, 34).

Further, in the above-mentioned embodiment, the concave portions 312, 32 for accommodating the stopper pieces 323, 333, 343 are provided.
Although 2 and 332 are provided, as shown in FIGS. 6A and 6B, a movable plate 30 having a simple shape in which the concave portions 312, 322 and 332 are omitted may be adopted.

Next, FIGS. 7 and 8 show a second embodiment of the present invention in which the air cylinders 40 and 43 are changed to the feed screw mechanism 60 as the driving means. Also in this embodiment, the table base 20 is used. A feed screw mechanism 60 is provided for the movable plates 31 and 34 located diagonally with respect to. That is, the feed screw mechanism 60 installed on the movable plate 31 will be described. The step motor 61 is attached to the back surface of the table base 20, and the feed screw 62 is connected to the rotation shaft 61a of the step motor 61. A nut 63 screwed with the feed screw 62 is attached to the back surface of the movable plate 31, and the table base 20 has a guide elongated hole 21 for allowing the nut 63 to move forward and backward.

That is, depending on the number of rotations of the step motor 61, the nut 6 is formed by screwing the feed screw 62 and the nut 63.
When the movable plate 3 moves forward and backward in the direction of the arrow in FIG. 8, the movable plate 31 expands and contracts with respect to the table base 20 along a diagonal line. A similar feed screw mechanism 60 is also arranged on the movable plate 31 and the movable plate 34 on the diagonal side, and the operations of the air cylinders 40 and 43 and the operation of the feed screw mechanism 60 are changed. Since the operation of the movable plate 30 is the same as that of the first embodiment, detailed description thereof will be omitted here.

Further, according to the feed screw mechanism 60, there is an advantage that the expansion dimension of the movable plate 30 can be continuously determined by the rotation speed of the step motor 61.

Next, FIGS. 9 to 11 show a third embodiment of the present invention, in which the directions of the drive shafts of the drive means such as the air cylinders 40 and 43 and the feed screw mechanism 60 can be adjusted and expanded. Transport table 10 when transport table 10 is contracted
This is effective when setting to a non-similar form of.

That is, a specific example in which the air cylinder 40 is installed will be described. The flange 311 of the movable plate 31.
Further, a mounting flange 313 further bent inward by 90 ° is formed, and an arcuate slit 314 is formed in the mounting flange 313.

On the other hand, on the back surface of the table base 20, an air cylinder 40 is installed via a bracket 41. On the bracket 41, a mounting pin 46 serving as a rotating shaft is installed. The bracket 41 can be swung in the direction shown in the drawing based on the above, and the angle determining stopper 47 is inserted into the plurality of angle adjusting holes 22 provided in the table base 20, thereby making the air cylinder 40
The drive shaft of is adjustable.

A guide portion 42a is provided at the tip of the piston rod 42 of the air cylinder 40.
2a is inserted into the slit 314 of the movable plate 31 and inserted.

Therefore, when the expansion direction of the movable plate 31 is determined, the bracket 41 of the air cylinder 40 is set at a predetermined angle based on the mounting pin 46 serving as a rotation axis in consideration of the aspect ratio of the sheet material used. By swiveling and inserting the angle determining stopper 47 into the angle adjusting hole 22 provided in the table base 20 at a predetermined swiveling position, expansion in consideration of the aspect ratio becomes possible.

[0043]

As described above, the sheet material conveying table according to the present invention has the following special operational effects.

(1) According to the first aspect of the present invention, a rectangular table base and four edges are provided on the periphery of the table base.
Since the movable plates are installed separately and a stopper piece is formed on one side of the adjacent movable plates to join to the side edge of the other movable plate, this movable plate is placed on the diagonal line of the table base. If it is expanded and contracted along with, the outer shape of the transport table is regulated to a substantially rectangular shape due to the interference action of the stopper piece, and it is possible to easily respond to the change of the sheet material, which is troublesome and requires skill as in the past. There is an effect that the work of exchanging the transport table is unnecessary and the productivity can be significantly improved.

(2) According to the first aspect of the present invention, a rectangular table base and 4 around the table base are provided.
Since the movable plate is installed separately, and the expanding and contracting motions of the movable plate are performed by the driving means such as the fluid pressure cylinder and the feed screw mechanism, it is automatically performed according to the external dimensions of the sheet material. The outer dimensions of the transport table can be changed, which has the effect of improving workability. In particular, when the feed screw mechanism is adopted, the expansion operation corresponding to the outer dimensions of the sheet material can be changed steplessly. It is possible to cope with the size required for the outer shape of the sheet material and the usability is further improved.

(3) According to the second aspect of the invention, since the drive axis direction of the drive means can be changed, the external shape of the table base and a non-similar shape are taken into consideration in consideration of the aspect ratio of the sheet material used. Therefore, it has an effect that it can be effectively applied to a wider range of sheet materials.

[Brief description of drawings]

FIG. 1 is a first sheet material conveying table according to the present invention.
The top view which shows embodiment.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

5 is a plan view showing a state in which the carrying table shown in FIG. 1 is expanded.

FIG. 6 is a plan view showing a modification of the movable plate in the transport table according to the present invention.

FIG. 7 is a plan view showing a second embodiment of the transport table according to the present invention.

8 is a sectional view taken along line VIII-VIII in FIG.

FIG. 9 is a plan view showing a third embodiment of the transport table according to the present invention.

FIG. 10 is a plan view of an air cylinder installation portion of the transport table viewed from the back side.

FIG. 11 is a sectional view taken along line XI-XI in FIG. 9.

FIG. 12 is an explanatory view showing a conventional sheet material supplying step.

FIG. 13 is a partial cross-sectional view showing the relationship between a conventional set table and a clamp device.

FIG. 14 is a partial cross-sectional view showing a conventional transport table.

[Explanation of symbols]

10 Transport table 20 table base 30 (31, 32, 33, 34) movable plate 312,322,332 323, 333, 343 Stopper piece 40,43 Air cylinder 41 bracket 42,45 piston rod 46 Mounting pin (rotating shaft) 47 Angle determination stopper 50 Guide rod 51 Support Department 60 lead screw mechanism 61 step motor 62 lead screw 63 nuts

Claims (2)

(57) [Claims] 1. A movable plate (30) divided into four along an outer peripheral edge of a rectangular table base (20) is provided along a diagonal line of the table base (20).
0) at least one of the movable plate (30) divided into four parts , which is installed so as to be movable toward and away from
The movable plate (30) of the table has a diagonal of the table base (20).
Drive that contracts and expands the movable plate (30) along the line
A moving member is provided, and stopper pieces (323, 333, 343) are provided on one side of the adjacent movable plates (30), which are joined to the side edges of the other side when the movable plates (30) contract and expand.
The movable plate (3
0) are connected to each other to perform a contracting or expanding operation, and a sheet material conveying table. 2. The driving means has a driving shaft in a lateral direction.
By variably adjusting the direction, the aspect ratio of the sheet material
The sheet material conveying table according to claim 1 , wherein the sheet material conveying table is changeable .