JPS6252044B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an eyelet making machine capable of performing a hole punching operation in fabric and a caulking operation of an eyelet member in a single operation. At the top of the machine, an elevator tube is equipped with an eyelet member that is caulked and the fabric is punched out so that it is always pushed upward by a spring. A cradle formed with a through hole large enough to allow the leg of the eyelet member to be inserted into the hole is equipped so as to be constantly pushed upward by a spring, and the eyelet member is caulked directly below the through hole, This relates to an eyelet punching machine that has a fixed lower die for punching out fabric.

To explain the eyelet driving machine of the present invention based on an embodiment, as shown in FIGS. On the left side, an interlocking rod 7 is provided which is pivoted to a horizontal shaft 6A at the left end of the horizontal part 6 of the frame 5 protruding from the machine base 4, and an elevator pipe 9 is attached to the right side of the ramming rod 3 by a shaft rod 8. , this elevator pipe 9 is connected to the machine base 4
It is formed substantially parallel to the horizontal part 6 of the frame 5 and is inserted into the horizontal part 6 of the frame 5 so as to be able to move up and down.

An adjustment bolt 10 is inserted into the horizontal portion 6 of the frame 5 in parallel with the elevator tube 9 so as to be able to rise and lower, and the intermediate portion of the elevator tube 9 and the lower part of the adjustment bolt 10 are connected to each other by an arm 11.

The adjustment bolt 10 is fitted into the horizontal part 6 of the frame 5 so as to be able to rise and lower. The lower part of the adjustment bolt 10 is screwed to the right side of the arm 11, and the adjustment nut 12 is screwed to the upper part of the adjustment bolt 10. A spring 13 is wound around the outside of the adjustment bolt 10 between the adjustment bolt 10 and the adjustment bolt 10.
Due to the elastic force of this spring 13, the adjustment bolt 1
0 is always pushed upward, and the spring force is adjusted by an adjustment nut 12.

Further, the elevator pipe 9 inserted into the left side of the arm 11 and fixed with the bolt 14 is constantly pushed upward by the elastic force of the spring 13 via the adjustment nut 12, the adjustment bolt 10, and the arm 11. There is.

This elevator tube 9 is composed of a mounting rod 15, a pressure tube 16, a punching rod 17, a holding tube 18, and a spring 19, and has the functions of caulking eyelets and punching out fabric, etc. .

The mounting rod 15 disposed at the top of the elevator pipe 9 is
As shown in FIG. 2, it has a cylindrical shape and has a shaft mounting plate 20 protruding from the upper part, and this shaft mounting plate 20 is attached to the lever 3 by the shaft 8. At the bottom of the mounting rod 15, the mounting rod 1
A pressurizing tube 16 having the same diameter as the pressurizing tube 16 is screwed on, and a cylindrical punching rod 17 is inserted into the concentric shaft of the pressurizing tube 16,
Secure with bolt 21.

A cylindrical pressurizing tube 16 screwed onto the mounting rod 15 is inserted and fixed into the arm 11, and a through hole 22 is provided in the lower end surface, and a through hole 22 is provided around the through hole 22 to correspond to the surface shape of the eyelet to be caulked. A pressurizing surface 28 having a curved surface is formed.

A cylindrical punching rod 17 that is inserted into and fixed to the mounting rod 15
The tip protrudes from the through hole 22 of the pressure tube 16, and a recess is provided in the center of the tip surface to form a blade 24, which serves to make a hole in the fabric that is slightly smaller than the diameter of the leg (b) of the eyelet. do.

The holding cylinder 18, which is fitted into the through hole 22 of the pressure tube 16 so as to be freely raised and lowered, is cylindrical, and has a seat ring 25 having a diameter larger than the diameter of the through hole 22 of the pressure tube 16 at its upper part. The lower outer circumferential wall of the 18 leg cylinder 26 forms a downwardly converging slope 27, and this seat ring 25 is in contact with the inner wall of the lower end surface of the pressurizing tube 16, and the holding tube 18 is connected to the pressurizing tube 16. The leg tube 26 is inserted into the through hole 22 of the pressurizing tube 16 so as to be able to rise and fall freely. The punching rod 17 is inserted into the through hole 28 of the holding tube 18, and the inclined surface 27 of the holding tube 18 and the blade 24 of the punching rod 17 are provided so as to protrude from the through hole 22 of the pressurizing tube 16, respectively. .

A fitting hole 31 is provided in the center of the machine base 4 of the frame 5, and the fitting hole 31 is formed with stepped circumferential portions 30 of successively smaller diameters. A lower die 33 is screwed onto this fixing portion 32, and a pedestal 34 is movable up and down so as to cover the lower die 33.
4 is installed in the fitting hole 31 so that the upper surface of the machine base 4 is flush with the upper surface of the machine base 4.

The pedestal 34 on which the fabric, etc. is placed has a through hole 37 bored in the center of its upper surface, and the diameter of the through hole 37 is equal to the diameter of the leg portion of the eyelet fitting inserted into and held in the holding tube 18 of the elevator tube 9. The pressurizing tube 16 is made of a size that can be inserted through it and cannot be inserted, and a spring 36 is wound around the outside of the cylindrical leg part 35 protruding from the lower surface of the pedestal 34, so that the top surface of the pedestal 34 is connected to the top surface of the machine pedestal 4. The punching rod 17 of the elevator pipe 9 is installed in the mounting hole 31 of the machine base 4 so as to be movable up and down so that the base 34 is constantly pushed upward by the elastic force of the spring 36. and a guide protrusion 39 of the lower mold 33, which will be described later, push the perforated fabric upwards, and push the leg portion RO of the eyelet into the perforated fabric.

Lower die 33 fixed to fixing part 32 of fitting hole 31
When the elevator pipe 9 descends to the center thereof,
A punching hole 38 is formed into which the tip of the punching rod 17 is inserted.
A guide groove 40 is formed on the outer periphery of the base of the guide protrusion 39 to serve as a guide when caulking the leg part B of the eyelet part 9.
The shearing force between the guide protrusion 39 and the guide protrusion 39 serves to make a hole in the fabric, and the pressurizing pipe 16 of the elevator pipe 9 and the guide groove 40 serve to swage the eyelet.

Next, to explain how to use the eyelet driving machine of the present invention, as shown in FIG. It is fitted and held onto the inclined surface 27 of 18.

On the other hand, when the lever 1 is pushed down after placing the cloth or the like on which the eyelet member is to be attached on the pedestal 34, the elevator tube 9 is lowered via the lever 3, and the blade 24 at the tip of the lower elevator tube 9 is lowered. comes into contact with the fabric surface,
This blade 24 pushes the dough into the through hole 37 of the pedestal 34, and the dough comes into contact with the tip of the guide protrusion 39 of the lower mold 33.

When the lever 1 is further pushed down, a hole slightly smaller than the diameter of the eyelet's leg is made in the fabric by the shearing force between the blade 24 of the punching rod 17 and the guide protrusion 39, and the punching rod is inserted together with this cut piece of fabric. No. 17 blade 24 is inserted into the punching hole 38 of the lower mold 33,
On the other hand, the drilled hole in the fabric is pushed up via the pedestal 34 by the elastic force of the spring 36, and the leg (R) of the eyelet member 2, which is fitted and held on the inclined surface 27 of the holding cylinder 18, is pushed up through the hole. The lower end surface 29 of the holding cylinder 18 is forced into the guide protrusion 39 of the lower die 33.
5, and the state shown in FIG. 5 is reached.

After this, when the lever 1 is further pushed down, the pedestal 34 is pushed down together with the fabric by the pressure tube 16, and the tip of the leg RO of the eyelet is connected to the pressure tube 16.
The retainer was pressed down by the pressure surface 23 of the mold, bent outward along the guide groove 40 of the lower mold 33 so as to wrap around the perforated peripheral edge of the fabric, and was in contact with the tip of the guide protrusion 39 of the lower mold 33. The tube 18 is the spring 1
The pedestal 34 is inserted into the pressure tube 16 against the elastic force of the pressure tube 16, and is pushed down together with the fabric by the pressure tube 16, and finally comes into contact with the upper surface 41 of the lower mold 33.
The leg portion (B) of the eyelet piece is caulked so as to wrap around the periphery of the perforated fabric, resulting in the state shown in FIG. 6.

When the lever 1 is stopped being pushed down from the state shown in FIG. Along with this, the pedestal 34 also rises due to the elastic force of the spring 36 wound around the leg 35,
The tip of the punching rod 17 of the elevator tube 9 is pulled out from the punching hole 38 of the lower end 33, and the holding cylinder 18 is pulled out from the through hole 22 of the pressurizing tube 16 by the elastic force of the spring 19 wound around the punching rod 17. It starts to stand out.

Next, when the pedestal 34 stops rising, the eyelet piece crimped into the fabric separates from the pressure surface 23 of the pressure tube 16, and the punched rod 17 passes through the through hole 37 of the pedestal 34 and the leg of the eyelet piece. The leg tube 26 of the holding tube 18 protrudes from the through hole 22 of the pressurizing tube 16 and returns to its original position, completing the operation of caulking the eyelet to the fabric.

Repeat this action to caulk the eyelet to the fabric.

As described above, the eyelet punching machine according to the present invention has the pressurizing surface 23 and the blade 24 on the lower end surface of the elevator tube 9, and the lower die 33 has the punching hole 38, the guide protrusion 39, and the guide groove 40.
Since this is provided, a hole can be made in the fabric and the eyelet member can be caulked with a single operation of pushing down the lever, which is simple and makes the caulking operation more efficient.

Since the punching rod 17 is disposed concentrically with the pressurizing pipe 16, the eyelet member is accurately inserted into the hole for the eyelet member and crimped, so positioning operations during crimping are unnecessary and efficient. The finish can be made elegant, there are fewer failures in the caulking operation, and the part stays in place better.

Further, since the inclined surface 27 is provided on the leg tube 26 of the holding tube 18, the eyelet member can be easily and securely inserted and held, making the crimping operation easier.

Furthermore, the eyelet making machine of the present invention uses the shearing force between the blade 24 of the punching rod 17 and the guide protrusion 39 to make a hole in the cloth that is slightly smaller than the diameter of the leg ``A'' of the eyelet pin. Since the leg portion R, which has a diameter larger than the diameter of the hole, is forcefully pushed into the fabric hole and crimped, it has the advantage that it can be crimped and crimped even on stretchable knitted fabrics and the like.

[Brief explanation of the drawing]

FIG. 1 is a partially omitted sectional view of an eyelet driving machine according to the present invention, FIGS. 2 and 3 are partially omitted enlarged sectional views, and FIGS. FIG. 6 is an explanatory diagram showing a caulking operation of a member. 4...Machine base, 5...Frame, 6...Horizontal part,
9... Lifting pipe, 15... Mounting rod, 16... Pressure pipe, 17... Punching rod, 18... Holding cylinder, 19...
Spring, 22... Through hole, 23... Pressure surface,
24...blade, 26...leg tube, 27...slanted surface, 3
1... Fitting hole, 33... Lower mold, 34... cradle, 3
6... Spring, 37... Through hole, 38... Punching hole, 39... Guide projection, 40... Guide groove.

Claims (1)

[Claims] 1 Upper horizontal part 6 of frame 5 protruding from machine base 4
Then, the elevator pipe 9 pushed upward by the spring 13 is fitted so as to be able to rise and fall freely, and the fitting hole 3 is inserted into the machine base 4.
1, and the fitting hole 31 is provided with a through hole 37 of a size that allows the leg part B of the eyelet member 2 to be inserted therein, and the pedestal 34 is equipped so as to be pushed upward by a spring 36. A lower mold 33 is fixed directly below the elevator pipe 9, and a mounting rod 15 is disposed on the upper part of the elevator pipe 9. A cylindrical pressure pipe 16 is screwed to the lower part of the mounting rod 15. Column-shaped punched rod 17 on the shaft
A pressurizing surface 23 and a through hole 22 are formed at the lower end of the pressurizing tube 16, and from this through hole 22, the leg tube 26 of the holding tube 18 and the blade of the punching rod 17, which are fitted on the concentric shaft, are inserted and fixed. 24 and 24 are respectively protruded from this holding cylinder 1.
Spring 19 with the upper part of 8 wrapped around a punched rod 17
The lower die 33 is provided in the pressurizing tube 16 so as to be constantly pressed down by the pressure tube 16 .
has a punching hole 38 in the center of which the blade 24 of the punching rod 17 is inserted, and a guide protrusion in which the outer diameter of the upper end of the punching hole 38 and the outer diameter of the lower end surface 29 of the holding cylinder 18 are the same diameter. 39, and a guide groove 40 is formed on the outer periphery of the base of the guide protrusion 39.