JPH02263531A - Forming work device for end part of sheet clamping member - Google Patents

Abstract

PURPOSE:To put an efficient forming work device into practical use by providing a pair of moving dies so as to move freely in the direction at right angles to the direction of length of a sheet clamping member and providing its driving device when working into such a shape that the end part of the sheet clamping member can be inserted and connected. CONSTITUTION:The sheet clamping member 1 where the prescribed length of its end part is inserted into a inserting guide part is constrained strongly at its inside face with a constraining part 21. Simultaneously, the moving dies 25 adjacent to moving dowels 22 are respectively moved inward by a specified stroke with driving means 27. As the result, the outside face of the sheet clamping member 1, its inside face of which is constrained with a fixing rack 23, is compressed with a forming die part 24 and an inner sliding face for fitting is forming worked in the form of reducing about the plate thickness of the sheet clamping member 1 and an inner joint part is made. When an outer joint part is working formed, a pair of moving dies are moved by a specified stroke to both outwards, so the inside face of a curled part is compressed with the forming die part and the outer sliding face for fitting is forming worked.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a female end (outer joint ) and a male end (inner joint).

The conventional sheet retaining material described in the specification and drawings of Utility Model Application No. 1983-100570 has a sheet retaining groove 1a with a narrow opening, as illustrated in FIGS. 7 to 9 of the drawings. Moreover, a curled portion 1b is provided at the edge of the sheet retaining groove 1a. One end of the sheet retaining material 1 is formed by forming an inner portion of the curled portion 1b into an outer sliding surface 2 for fitting that is a straight plane even in the longitudinal direction to form an outer circumference 1 and an inner portion A. The end of the other sheet fastening material 1 to be connected to the sheet retaining material 1 is narrowed down so that its cross-sectional shape remains similar to that of the other sheet retaining material 1, and the outer part of the curled portion 1b is narrowed to a straight plane that is uniform in the longitudinal direction. It is formed on the inner sliding surface 3 for fitting in the shape of a shape to form an inner joint portion. Therefore, these two sheet stoppers 1.
1 can be butted and connected in series by inserting the inner joint part B into the outer joint part A.

According to this sheet fastening material 1, the cross-sectional external shape of the insertion connection between the outer joint part A and the inner joint part B is the same shape and size as the original external shape of the sheet fastening material. Therefore, it is convenient that conventional parts such as pipe joints can be used as they are at the connection part without any trouble, and this contributes to economical construction of greenhouses and the like and to independent construction work. In addition, the strength of the connection part is high, especially against bending.
Contributes to the construction of highly rigid vinyl greenhouses, etc.

Problems to be Solved by the Invention As mentioned above, the practicality of the sheet retaining material I having the above structure is highly promising. However, this sheet stopper l
When putting this into practical use, the ends of the sheet retaining material l (outer joint part A, inner joint part B) must be separated by any method.
There is a problem as to whether or not it can be molded by other means, and this point is an issue that needs to be solved.

Means for Solving the Problems (First Invention) As a means for solving the above problems, a sheet stopper end forming apparatus according to the first invention particularly forms the above-mentioned outer joint portion A. As shown in the embodiments in FIGS. 1 to 3 of the drawings, the means includes an insertion guide part 10 into which the end of the sheet stopper l is inserted for a predetermined length in the longitudinal direction, and Guide part lO
A pair of movable molds 12. having a mold portion 11 on the inner surface of the curled portion 1b of the sheet retaining material 1 and facing the sheet retaining groove la of the sheet retaining material 1 within the range of the sheet retaining material 1. l・2,
It was installed so as to be movable in a direction perpendicular to the longitudinal direction of the sheet stopper l.

The present invention is characterized in that a drive means 13 for the movable mold 12 is provided.

Function: The sheet retaining material l whose end is inserted into the insertion guide part 10 for a predetermined length is molded at the same insertion guide part l.
0 (FIG. 3), and then the drive means 13 moves the pair of movable types 12 and 12 outwards by a constant stroke, so that the seat whose position is fixed as described above The inner surface of the curled part ib at the end of the stopper 1 is compressed by the mold part 11 of the movable mold 12, and the outer sliding surface 2 for fitting (FIG. 7) is molded (pressed) and released. This will be the joint part A. Thereafter, when the pair of movable molds 12.12 are returned to their original positions by the driving means 13, the seat stopper l processed as described above is inserted into the insertion guide lO.
It can be extracted from.

(Second invention) As a means for solving the same problem as above, a sheet fastening material end forming apparatus according to a second invention is a means for particularly forming the above-mentioned inner joint part B, and includes: Examples are shown in FIGS. 4 to 6 of the drawings.

An insertion guide part 20 is provided, into which the end of the sheet stopper l is inserted for a predetermined length in the longitudinal direction, and the insertion guide part 20
The sheet stop JJla of the sheet stop material 1 within the range of
A pair of movable pieces 22, 22 having a restraining portion 21 on the inner surface of the sheet retaining groove of the sheet retaining material 1 and facing inward were installed so as to be movable in a direction perpendicular to the longitudinal direction of the sheet retaining material 1. Further, a sheet retaining groove l of the sheet retaining member 1 is provided at a position adjacent to the moving piece 22 and on the forward side in the insertion direction of the sheet retaining member l.
Install the fixing base 23 located within a, and attach the same sheet stopper l.
A pair of movable molds 25.25 having a curl portion 1b of the sheet retaining material 1 and both side wall portions 1c and mold portions 24 on the outer surface of lc were installed at positions on both sides of the sheet. Then, the moving piece 22
and drive means 26 and 27 for the movable mold 25, respectively.

The sheet retaining material 1 whose end portion has been inserted into the insertion guide portion 20 for a predetermined length is formed at a position where the end portion is inserted into the insertion guide portion 20.
0, and then when the drive means 26 moves the pair of moving pieces 22 in a certain stroke inward and outward, the inner surface of the sheet stopper l whose position is fixed as described above is restrained. It is strongly restrained by the portion 21. At the same time, the movable mold 25 adjacent to the movable piece 22 moves to the drive means 2.
7 each move a certain stroke inward. As a result, the outer surface of the sheet retaining material l whose inner surface is restrained by the fixed base 23 is compressed by the mold part 24 of the movable mold 25, and the inner surface for fitting is compressed by the thickness of the sheet retaining material l. The moving surface 3 (Fig. 7) is molded (pressed),
This will be the inner joint part B. At this time, since the restraining part 21 is restraining from the inside, the machining force by the mold part 24 causes harmful deformation beyond the boundary position C of the inner joint part B to the unprocessed part. I won't let you.

Thereafter, when the movable piece 22 and the movable die 25 are returned to their original positions by the driving means 26 and 27, the processed sheet stopper 1
can be inserted and removed from the guide section 20.

Example The illustrated invention will now be described in detail.

First, FIGS. 1 to 3 show a forming apparatus for forming the end portion of the sheet stopper 1 into an outer joint portion A (see FIG. 7).

As is clear from FIG. 3, the pair of movable pieces 45 and 45 forming the groove-shaped insertion guide portion lO approximately approximating the cross-sectional outline of the sheet retaining material l on the base plate 14 cannot be moved in the left-right direction. It is freely installed. Restricting surfaces 10a and 10b, which are equivalent to bisecting the outer shape of the sheet stopper in the cross section, are formed on the opposing inner surfaces of the pair of moving pieces 45, 45. Further, a spring 46 for return operation is attached between the pair of moving pieces 45, 45. Furthermore, each moving piece 45 has a cam hole 47 in the vertical direction.
is provided.

As is clear from FIGS. 1 and 2, the base plate 1
4 has a flat plate-shaped inner guide portion 15 fixed at its base end, and this inner guide portion 15 is arranged in parallel within the insertion guide portion 10 . In other words, the sheet stopper 1 includes the insertion guide section 10 and the inner guide section 15.
and both guide parts 10.15.
The inner guide part 15, which restrains (fixes) the position of the molding process of the sheet retaining material 1 from the inside and outside, has its base end (the end on the forward side in the insertion direction of the sheet retaining material 1) secured to the tightening bolt 16. It is firmly fixed and cantilevered by a fixed block 17 fastened to the base plate 14 by .... A stopper 48 in the form of a piece of steel is fixed to the lower surface of the inner guide portion 15 to define the length by which the sheet stopper l is inserted into the insertion guide portion lO.

Next, 12 in the figure is a mold part 1 facing into the sheet retaining groove la of the sheet retaining material l inserted into the insertion guide part lO.
It is a mobile type with 1. This movable mold 12 consists of a pair that moves toward and away from each other symmetrically in a direction perpendicular to the longitudinal direction of the sheet retaining material 1, and particularly in a direction substantially parallel to the bottom surface of the sheet retaining groove 1a. This movable mold 12 is movably installed on the movable piece 45, 45 forming the insertion guide portion IO (Fig. 3), and 7 and 7 in Fig. 2 are the movable piece 45 and This is a guide block erected and fixed to the base plate 14 to guide the movement of the movable mold 12.

The mold surface 11 of the movable mold 12 is the outer sliding surface 2 for fitting at the outer joint portion A of the end of the sheet retaining material (Fig. 7).
It is intended to form a structure, and is said to have such a form. The mold surface 11 is arranged so that the inner surface of the curled portion 1b faces into the sheet retaining groove la so as to be moldable.

As a common driving means for the pair of movable pieces 45, 45 and the movable die 12°12, each movable die 12 and the movable piece 45 below it have a rectangular cam hole vertically penetrated approximately in the center thereof. 18 and 47 are provided at a common position. On the other hand, the two vertical translational cams 13.13 inserted into the cam holes 18 and 47 are mounted and fixed vertically downward on a common press plate 19, and the press plate 19 is attached to a press machine (not shown). The output ram 8 moves it up and down by a constant stroke.

A movable type 12 is provided on the outer circular surface of the two linear motion cams 13, 13.
The inclined surface portion 13a is symmetrically arranged and has a predetermined amount of change (cam lift amount) in order to drive the cam lift.

13a is formed. Further, at a position on the inner surface that is a certain dimension lower than the inclined surface portion 13a, the inclined surface portion 13b that drives the moving piece 45 is deformed by a predetermined amount of deformation (cam lift amount).
It is formed of. Therefore, when the direct-acting cam 13 is lowered by a certain stroke after the sheet stopper l is inserted into the insertion guide part lO, the pair of moving pieces 45 and 45 are first moved inward by the lower inclined surface part 13b. Then, the restraining surfaces 10a and 10b are brought into close contact with the outer surface of the sheet fixing material 1 and fixed thereto. Subsequently, the edge of the cam hole 18 is pushed outward by the inclined surface portion 13a of the throne, and the pair of movable molds 12.
12 is moved by a certain amount in the direction outside the circle. During this movement process, the mold surface 11 compresses the inner surface of the end of the sheet retaining material 1 by a prescribed amount to form the outer sliding surface 2 for fitting. The processing reaction force during this molding process is applied by the moving piece 45. The inner guide portion 15 is effective in preventing deformation of the sheet stopper 1, particularly the groove bottom portion, from warping during the above-mentioned processing.

A return compression spring 6.6 is installed on the outer end surface of the pair of movable molds 12.12. Therefore, when the linear drive cam 13 that has completed the above-mentioned forming process is moved up by a certain stroke, the cam hole 18 is released from the restraint of the inclined surface portion 13a, and the pair of movable dies 12 and 12 are moved by the compression spring 6. .6 is pushed back inward, and the respective mold surfaces 11 and 11 are restored to the state in which they are in contact with each other as shown in FIG. Further, the pair of moving pieces 45, 45 are also pushed back to their original positions by the return spring 46, and the sheet retaining member 1 is released. Therefore, the sheet retaining material l that has been formed into the outer joint portion A can be extracted and converted into a new sheet retaining material to be processed.

Reference numeral 5 in FIG. 2 denotes a guide pin vertically provided on the base plate 14 to guide the upward and downward movements of the push plate 19.

In addition, although the above embodiment has a configuration in which a direct-acting cam mechanism is adopted as the driving means of the movable die 12, the configuration is not limited to this, and it may also be implemented by adopting a hydraulic mechanism, a toggle link mechanism, or the like. can.

Furthermore, the inner guide portion 15 can also be implemented by dividing the inner surface shape of the cross section shown in FIG.

Second Embodiment Next, FIGS. 4 to 6 show a forming apparatus for forming the end of a sheet stopper into an inner joint part B (see FIG. 7).

As is clear from FIG. 6A, a groove-shaped insertion guide portion 20 approximately approximating the outer shape of the cross section of the sheet retaining material 1 is provided by a pair of movable tables 50, 50 installed on the base plate 28. It is being

This moving platform 50.50 is movable in the left-right direction in FIG. 6A, and has a restraining surface 20a on its opposing inner surface that has the same outer shape as the cross-sectional shape of the sheet retaining material 1.

20b is formed. In addition, a pair of moving tables 50.5
A spring 51 for return operation is attached between 0 and 0.

As is clear from FIG. 4, the sheet stopper 1 is fixed to the base plate 28 in the insertion guide section 20 at a position on the forward side in the insertion direction, particularly at a position on the forward side by the width of a moving piece 22 to be described later. A fixing base 23 is arranged parallel to the insertion guide section 20 on the same center line. Therefore, the sheet retaining material l inserted through the insertion guide part 20 is smoothly inserted into the outside position of the fixing base 23, and the position of the forming process of the sheet retaining material l is restrained (fixed) by both of them. The sheet retaining material 1 is attached to the fixing base 23
A stopper 52 protruding from the bottom surface of the
It is inserted until it hits (Fig. 5).

The fixing base 23 is formed as a convex shape on the lower surface of the block 29 fixed to the base plate 28, and is positioned in the sheet retaining groove la of the sheet retaining material I inserted through the insertion guide portion 20, and is prevented from being exposed from the outside. It is designed to provide a necessary and sufficient reaction force against the molding pressure. For this purpose, the fixing base 23 is formed to have approximately the same shape and size as the cross-sectional shape of the sheet retaining groove 1a of the sheet retaining member 1.

Next, reference numeral 22 in the figure is a moving piece having a restraining part 21 facing into the sheet retaining groove la of the sheet retaining material l inserted into the insertion guide part 20. This moving piece 22 is symmetrically moved toward and away from the sheet retaining groove 1a in a direction perpendicular to the longitudinal direction of the sheet retaining member 1 (left-right direction in FIG. 6A), and particularly in a direction substantially parallel to the groove bottom surface of the sheet retaining groove 1a. It consists of a pair of This moving piece 22 is connected to a pair of moving bases 50. which form the insertion guide section 20.
The moving piece 22, which is movably installed on the base plate 50 (FIG. 6A), is placed in a recess 30 formed in the base plate 28 together with the moving table 50 in order to realize the above-mentioned movement. The restraining portion 21 of the movable piece 22, which is installed adjacent to the movable mold 25 (Fig. 5), is used when forming the end of the sheet retaining material into the inner joint portion B by the movable mold 25, which will be described later. , determines the boundary position of the inner joint part B (the order of the leader line C indicating the symbol B in Fig. 7), and works to prevent harmful deformation from occurring even in the unprocessed part due to processing stress. . Therefore, the restraint part 21
As is clear from FIG. 6A, the cross-sectional shape of the sheet retaining material l is formed to have the same shape and size as the shape of the inside of the sheet retaining groove 1a, especially from the side wall portion lc to the curled portion 1b. has been done.

As driving means for the pair of moving pieces 22, 22, rectangular cam holes 31 and 32, which are vertically penetrated approximately in the center of each moving piece 22 and the moving table 50 below them, are provided at a common position. On the other hand, two vertical translational cams 26.26 inserted into the cam holes 31.32 are fixed vertically downward to a common push plate 33 (FIG. 6), and the push plate 33 is driven vertically with a constant stroke by an output ram 34 of a press machine (not shown). The two translational cams 26, 26 are formed with inclined surface portions 26a, 26a having a predetermined amount of change (cam lift amount) in a symmetrical arrangement. An inclined surface portion 26b for driving the movable table 50 is formed with a predetermined amount of change (cam soft amount) on the inner surface at a certain distance below the position of the inclined surface portion 26a.

Therefore, when the direct-acting cam 26 is lowered by a certain stroke, the edges of the cam holes 31 and 47 are pushed by the inclined surface parts 26a and 26b. Then, the pair of moving pieces 22, 22 are moved a certain amount in an outward direction, and the pair of moving tables 50, 50 are moved inward. As a result of this movement, the restraint part 21 comes into close contact with the inner surface of the sheet stopper groove 1a, and the restraint surfaces 20a and 20b come into close contact with the outside surface of the sheet stopper groove 1a.
is tightly restrained from the inside and outside.

A return compression spring 35.degree. 35 is installed on the outer end surface of the pair of moving pieces 22, 22 between them and the base plate 28. Therefore, when the translational cam 26 is raised by a certain stroke, the cam hole 31 is released from the restraint of the inclined surface portion 26a, and the pair of moving pieces 22 and 22 are moved inward by the compression spring 35. The restraining parts 21, 21 are pushed back and restored to the state in which they are in contact with each other as shown in FIG. is liberated.

Next, it is placed adjacent to the pair of movable pieces 22, 22 on the forward side in the insertion direction of the sheet stopper 1 (FIG. 5), and between the block 29 of the fixing base 23 and the base plate 28 (the fourth ), a pair of movable molds 25 are placed at positions on the outer side of the sheet retaining material 1 inserted on the outside of the fixed base 23.
．． 25 is installed so as to be movable in a direction perpendicular to the longitudinal direction of the sheet retaining member 1, particularly in a direction parallel to the bottom surface of the sheet retaining groove 1a. This movable type 25 has a base plate 2
The moving piece 22 is placed adjacent to the moving piece 22 into a recess 30 formed in the moving piece 8 . Several guide bins 36 are erected on the base plate 28 via rubber bushings 53.
The movement is properly guided by the guiding effect of the hole 37 fitted in the hole. Block 29 of fixed base 23
is installed on the movable mold 25 in a slightly raised shape by a compression spring 54.

The mold part 24 of the movable mold 25 forms the outer surface of the curled part 1b at the end of the sheet retaining material l into the inner sliding surface 3 for fitting of the inner joint part A, and the side wall part 1c forms the outer surface of the curled part 1b at the end of the sheet retaining material l. It is said that the shape is reduced (narrowed down) by an amount equivalent to the thickness of the plate while remaining approximately similar in shape.

As a driving means for the pair of movable molds 25 and 25, a shaft 37 is located approximately at the center of the outer end surface of each movable mold 25, and a base plate 28 is connected to the base plate 28 in a direction perpendicular to the longitudinal direction of the sheet retaining material 1.
It is provided so that it protrudes outward for a long time. A compression coil spring 39 for returning the movable die 25 is wound around the core wire 27 between the outer surface of the base plate 28 and a nut 38 at the tip of the core wire.

On the other hand, as shown in FIG. 5, a direct-acting cam 27 is inserted between the outer end surface of the movable mold 25 and the surrounding wall of the recess 30 of the base plate 28 in which the movable mold 25 is installed.

The two direct-acting cams 27°27 are mounted vertically downward on a press plate 33 (Fig. 6) that is common to the direct-acting cam 26 of the moving piece 22, and are driven up and down by a press. ing. 27 in Figure 0 where an inclined surface portion 27a having a predetermined amount of change (cam lift amount) is formed on the inner side of the lower end of the direct-acting cam 27.
b is a notch provided at the tip of the direct-acting cam 27 in order to avoid the core wire 37. The push plate 33 is also provided with a push die 55 for pushing down the block 29 of the fixing base 23.

Therefore, when the push plate 33 is lowered, the push die 55 first pushes down the block 29 and presses the sheet retaining material 1 inserted into the fixing base 23 onto the pedestal 56. Immediately thereafter, the direct-acting cam 27 is lowered by a predetermined stroke, and the pair of movable molds 25, 25 are symmetrically moved inwardly by the inclined surface portion 27a. During this movement process, the mold part 2
4 is the outer surface and side wall portion 1 of the curled portion ib of the sheet retaining material l.
The outer surface of c is compressed and drawn into a shape that follows the fixing base 23.

At this time, the direct-acting cam 26, which has been lowered slightly ahead of the direct-acting cam 27, drives the moving piece 22, and uses its restraining portion 21 to move the sheet retaining material l outward from the inside of the sheet retaining groove 1a. be restrained and fixed. Therefore, the mold part 24
The processing stress of the sheet retaining material l due to the inner joint part B
There is no harmful deformation of the unprocessed parts beyond the boundary position C, and the fitting inner sliding surface 3, which becomes the inner joint part B, etc., are formed with high precision.

Thereafter, as the direct-acting cam 27 is raised and the outer end surface of the movable mold 25 is released from the restraint of the inclined surface portion 27a,
A pair of movable types 25 and 25 each have a compression coil spring 3.
The block 29, which is pulled out at 9 and released from the restraint by the press die 55, is floated by the spring 54. At the same time, the movable piece 22 released from the restraint by the inclined surface portion 28a of the direct-acting cam 26 is also pushed inward by the compression spring 35, so that the sheet stopper 1 is completely released from the restraint.
Since it can be removed, it can be replaced with a new workpiece sheet stopper.

Note that in this embodiment as well, the movable piece 22 and the movable type 25
Although the configuration employs a direct-acting cam mechanism as the drive means, this configuration is not limited to this. This can be implemented by employing a hydraulic mechanism, a toggle link mechanism, or the like.

As described in detail in conjunction with the embodiments, the effects of the present invention are as follows. According to the sheet fastening material end forming apparatus according to the present invention, the sheet fastening material l can be inserted and connected to the sheet. Processing of the ends of the stopper material, that is, forming the outer joint part A and the inner joint part B, can be realized industrially with high efficiency and precision, making it possible to enjoy the above-mentioned plug-in connection and the various benefits associated with it. It's about getting used to it.

[Brief explanation of drawings]

Figure 1 is a perspective view showing the configuration of the main parts of a molding device that molds the outer joint part of the sheet retaining material, and Figure 2 is a perspective view of the same molding device, excluding the press plate of the linear drive cam. The plan view shown in FIG. 3 is an enlarged sectional view taken along arrow 3-3 in FIG. Figure 4 is a perspective view showing the configuration of the main parts of a molding device that molds the inner joint portion of the sheet retaining material, and Figure 5 is a perspective view of the same molding device, excluding the press plate of the linear drive cam. The plan views shown in Figures 6A and 6B are 6A-6A and 6 of Figure 5.
It is an enlarged cross-sectional view taken along arrow B-6B. Fig. 7 is a perspective view showing the structure of the insertion connection of the sheet fastening material, especially the 5m state before connection, Fig. 8 is a perspective view showing the connection state before the same, Fig. 9
The figure is a sectional view taken along arrow 9-9 in FIG. lO...Insertion guide part tb...Curl part 12...Movable type (direct drive cam) Do part 21...Restriction part 23...Fixed base 25...Movable type (direct drive cam) l ...Sheet stopper la...Sheet stopper groove it...Mold part 13...Drive means 20...Insertion guide 22...Movement piece 24...Mold part 26,27...・Drive means

Claims (1)

[Scope of Claims] [1] An insertion guide portion is provided into which the end of the sheet retaining material is inserted for a predetermined length in the longitudinal direction, and the sheet retaining groove of the sheet retaining material is provided within the range of the insertion guide portion. A pair of movable molds having mold portions on the inner surface of the curled portion of the sheet retaining material facing inward are installed so as to be movable in a direction perpendicular to the longitudinal direction of the sheet retaining material, and the movable molds are driven. 1. A forming processing device for an end portion of a sheet fastening material, characterized in that a means is provided. [2] An insertion guide part is provided into which the end of the sheet retaining material is inserted for a predetermined length in the longitudinal direction, and the end part is arranged so as to face the sheet retaining groove of the sheet retaining material within the range of the insertion guide part. A pair of movable pieces having a restraining portion on the inner surface of the sheet retaining groove of the sheet retaining member are installed so as to be movable in a direction perpendicular to the longitudinal direction of the sheet retaining member, and adjacent to the movable pieces, the moving pieces have a restraining portion on the inner surface of the sheet retaining groove, and are adjacent to the movable pieces and have a restraining portion on the inner surface of the sheet retaining groove. A fixing base located within the sheet retaining groove of the sheet retaining material is installed at the front side, and a curled portion of the sheet retaining material and mold portions on the outer surfaces of both side walls are installed at both outer positions of the sheet retaining material. 1. An apparatus for forming an edge of a sheet fastening material, characterized in that a pair of movable molds having a movable mold are installed, and driving means for the movable piece and the movable mold are provided.