JPH04190917A - Device for adjusting die on shaped bar stretching machine - Google Patents

Abstract

PURPOSE:To draw a straight product by providing the die plate which holds the die being moved upward and downward with the wedge and which is moved to right and left direction with the cylinder and the working shaft on the stand of the drawing machine, and setting the displaying device to display the above movement so as to move and adjust the die. CONSTITUTION:A die plate 4 which is moved to the right and left direction with a cylinder 6 and a presser metal 10 of a man drive or an automatic drive, and which is also moved upward and downward by engaging slidably a fixed wedge 17 with a operating shaft 19 set on the down surface is provided on the stand 1 of the drawing machine, a circular outer die holder 13 is fit in the above center, an inner die holder 15 which holds a die 21 at the inner side through the above square notch space 29 is fit in, an annular die presser 28 provided with a oil feeding path on the rear surface and a lubricating metal tool 31 which connects to this oil feeding path mounted in the die presser 28 is set, a stock guiding device 34 installed a guide roller 33 and a oil receiver 34 are set at the just rear side of the above, a rack gear 23 is engaged with a fan shaped gear 22 of the upper part of an outer die holder 13 and the die 21 is turned through the inner die holder 15, and the above turning, the elevating and lowering and the right and left movement are displayed with the displaying device.

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention deals with the production of deformed materials (extruded products with a cross-sectional shape or irregular shape) that have a cross-sectional shape or a special cross-section different from standard shapes such as round or square shapes. The present invention relates to a die adjusting device in an irregular-shaped rod drawing machine for drawing.

[Prior Art J] Conventionally, in this type of odd-shaped rod drawing machine, a die for drawing into a predetermined shape is fitted into a die holder held in a die plate and held in a centered state.

Furthermore, the center of the die is adjusted by moving the center of the die via a die holder using a suitable up-and-down device and a right-left moving device so that a straight product is drawn.

[Problems to be Solved by the Invention] However, in drawing the above-mentioned irregularly shaped materials, the cross-sectional shape is not symmetrical from the center, so the cross-sectional shape and wall thickness are different on the left and right, top and bottom sides with respect to the center line, such as trapezoids, etc. When drawing irregularly shaped materials such as L-shaped and U-shaped materials, they tend to bend toward the side with more area reduction, resulting in poor straightness of the product, resulting in bending and warping of the drawn product, making it difficult to obtain accurate dimensional accuracy. was difficult.

In order to solve this problem, the present invention holds the die center so that it can be moved and adjusted in any direction: vertically, horizontally, circumferentially, and in the direction of the center of the ball.

The object of this invention is to enable the die center to be easily and easily placed in a predetermined position.

[Means for Solving the Problems J] In order to achieve the above object, the device of the present invention is provided with a stand 1 of a drawing machine that is moved left and right by an air cylinder 6.6 and a pusher 10 that is moved back and forth by an operating shaft 9. , Rotating shaft 1 horizontally mounted on stand 1 with #g17.17 fixed on the left and right on the bottom surface.
a wedge 18 that engages with the fixing wedge screwed onto the threaded portion 20 of 9;
．． The die plate 4, which is raised and lowered by means 18, is installed.

Pointers and scales such as a dial cage that displays the horizontal movement position of the die brakes 1 and 4 according to the rotation degree of the operating shaft 9, and a dial cage that displays the vertical movement position of the die brakes 1 to 4 according to the rotation degree of the rotation axis 19. An appropriate display device shall be provided with a board.

A circular hole 11 provided in the center of the die plate 4 has a spherical surface 13a on the inner periphery of the front part of the circular body and a square notch space 12 on the rear part.
The inner die holder 15, which has a spherical surface 15a that engages with the spherical surface 13a and a square flange 14 that fits into the square notch cavity 12, is fitted into the outer die holder 13. Inside is a drawing die 21
Insert and hold.

Hexagon socket head bolts 43 are inserted into the four sides of the front surface of the outer die holder 13 through the seat bolt holes 44 of the inner die holder 1.
5 into the screw holes 45, and tighten or loosen the hexagon socket head bolts 43 on the four sides as appropriate to rotate the inner die holter 15 in the desired direction with respect to the spherical centers of the spherical surfaces 13a and 15a. The die center can be set and fixed at any desired position.

Further, there is an annular die holder 28 provided with an oil supply port 27 on the rear surface of the inner die holder 15, an oil passage 29 that is fitted into the die holder from the rear and communicates with the oil supply port, and jet ports 3 at several locations.
A lubricating fitting 31 equipped with a lubricating fitting 31 with a lubricating oil is installed behind it, and a material guide device 34 that lowers the guide rollers 33, 33 vertically and symmetrically in a vertically symmetrical manner so that they can move toward and away from the L by rotation of a screw shaft, and an oil receiver 35 for lubricating oil are installed behind the lubricating fitting 31. A sector gear 22 is attached above the rear end of the outer die holder 13, and a gear 23 that meshes with the sector gear 22 is mounted above the die plate 4 through the outer die holder 13 and the inner die holder 15 by a rotation shaft 24. A die adjusting device for an odd-shaped rod drawing machine, which rotationally displaces a core of a die 21 and displays the degree of rotation by a scale plate 26 having a pointer 25 attached to an outer die boulder 13 and a scale plate 26 attached to the upper back surface of a die plate 4. It is.

[Operation] When the device configured as above is used to draw and form a trapezoidal or deformed steel bar product having convex portions on the top and bottom sides, the die hole is not symmetrical in the left and right, top and bottom, so the material to be drawn is drawn on the side with a higher liquid level. When drawing a deformed steel bar, it is necessary to move and adjust the die core to an appropriate position with respect to the line of entry of the material.

In such a case, in FIG. 1, several air cylinders 6.6 installed on the left side of the stand I are operated, and the die plate 4 is pushed to the right by the piston pusher 8.8.
Alternatively, by rotating the handle 9a or the chain wheel 9b on the right side, push the die brake 1-4 to the left via the presser metal 10 to adjust the center position of the die 21 to the left or right, and also move the rotary operation shaft 19 to the handle. When the die plate 4 is rotated, the wedges 18.18 screwed into the threaded portions 20 move symmetrically to the left and right depending on the direction of rotation, and the die plate 4 is raised and lowered by engagement with the fixing wedges 17.17 on the lower surface of the die plate 1. , adjust the vertical position of the center of the die 21.

In addition, the seat bolt holes 4 on the four sides of the front side of the outer die holder 13 are
By tightening, loosening, or adjusting the hexagon socket head bolt 43 screwed into the tapped hole 45 of the inner die holder 15 through the inner die holder 15, the inner die holder 15 can be rotated in any direction via the spherical surfaces 13a and 15a. The die center can be set and fixed in any direction position.

Further, by rotating the shaft of the rack gear 24 that meshes with the sector gear 22, the sector gear 24 is rotated, and the outer die holder 1 is rotated.
3 and the inner die holder 15, the die 21 is rotated, and the die center is rotationally displaced, and it is aligned with the pointer 2.
5 and the scale plate 26, the movement of the dip center position and the inclination angle of the drawn material can be confirmed, and the dip center position can be moved and adjusted as desired in all directions.

[Embodiment 2] The following embodiment will be described with reference to the drawings. In Fig. 1, a horizontally long rectangular opening 2 of a stand 1 of a drawing machine is provided with gravity on both sides, and the opening is opened along an id 3.3. Insert the horizontally long die plate 1-1 narrower than 2 with gaps left and right and downward, attach the air cylinder taro 6 above and below one side of the stand, and press the die plate 1-4 with each piston pusher 7. The die plate 4 can be moved to the left by a pusher 10 that moves forward and backward by a screw shaft 9 rotated by a handle S or a chain wheel 8a on the other side. Provide 7 A circular hole 1j is formed in the center of the die plate 1, and in the circular hole, an outer die holder 13 having a rectangular notch cavity 12 in the rear half of the cylinder, and an outer die holder 13 that fits into the notch cavity 12 inside thereof. An inner die holder 15 having a rectangular flange 14 to be fitted is fitted, and the die 21 is fitted and held within the inner die boulder 15.

Further, a fixed wedge 17.1 is provided with a tapered surface 17a symmetrically on the left and right sides of the lower surface of the pedestal 16 disposed below the die plate 4.
7 and a tapered surface 1 that engages with this fixing wedge 17.17.
By screwing the wedges 18.18, each having a diameter of 8a, onto the threaded portion 20.20 of the operating shaft 19 that is pivotally supported on the stand 1, and moving the wedges 18.18 left and right symmetrically, the die brake 1-4 can be moved up and down. Move it to adjust the center position of the die 21 up and down.

In FIG. 3, the outer die holder 13 fitted in the die plates 1 to 4 has a spherical surface 13a on the inside of the front end and a quadrangular notch space 12 on the rear body, and a spherical surface 15a that fits into the spherical surface 13a. An inner die holder 15 having a rectangular flange 14 fitted in the notch space 12 at the rear thereof is fitted, and the die 21 is fitted and held within the inner die holder 15.

Reference numeral 43 denotes a hexagon socket head bolt for adjusting the rotation of the die 21 in any direction with respect to the spherical center of the spherical surface 13.15. 43 into the screw holes 45 drilled in the rectangular flange 14 of the inner die holder 15, and by tightening or loosening the hexagonal hole bolts 43 on the four sides as appropriate, the inner die holder 15 can be made into spherical surfaces 13a and 15a. It can be rotated in any direction around the spherical center of the die, and the die center can be set and fixed in any direction.

As described above, the die 21 is installed so as to be movable left and right, up and down, and rotated with respect to the center of the ball, and a fan-shaped gear 2 is installed in a 60 degree range above the rear end of the outer die bolter 13.
2, and furthermore, the rack gear 23 that meshes with this fan-shaped gear 22 is mounted on the rear surface of the upper part of the dive plate 4 with a rotary shaft 24, and by rotating the rotary shaft as appropriate, another rack gear 23 is installed. , the die 21 is rotated together with the outer and inner die holters 13 and 15 via the sector gear 22, and the die 2]
At the same time, the movement is displayed by a pointer 25 attached to the outer die holder 13 and a scale plate 26 attached to the upper rear surface of the die plate 4.

Further, at the rear of the inner die holder 15, an annular die holder 2 is provided which has a key-shaped oil supply port 27 that opens from the axial direction to the circumferential direction.
8, a ring-shaped oil passage 29 having a rectangular flange 14 that fits inside the die holder and communicating with the oil supply port 27 between the die holder 28 and the inner circumferential surface of the die holder 28; It connects with two oil pipes at several places on the inner circumference, and there are three spouts pointing toward the center.
An annular lubricating fitting 31 having a diameter of
Provided to supply lubricating oil to the passing material from zero.

In the rectangular notch space 12 of the outer die holder 13, a bolt 32 is attached to the back of the lubricating fitting 31 to connect the material chi 1 to the device 34 equipped with the vertically adjustable chi 1 roller 33 and the lubricating oil. Install an oil pan 35.

In FIG. 4, the material guide device 34 is attached to a support frame 36 which is attached to the notch space 12 of the outer die holder 13 by means of a holt 32, and is spaced from the left and right sides of the center of the support frame, respectively. Screws with opposite screw directions at the top and bottom 37.37
A vertical operation shaft 38.38 with a 2.5 mm diameter is mounted on the shaft, and guide rollers 33.33 are respectively supported on roll holders 39.39 screwed over these threaded portions, and the upper and lower guide rollers 33 and 33 The distance between the two is adjusted vertically symmetrically.

5 shows a rear view and a detailed cross-sectional view of the inner die holter 15, FIG. 6 shows a rear view and a detailed cross-sectional view of the die holder 28, and FIG. 7 shows a rear view and a detailed cross-sectional view of the lubricating fitting 31. In FIG. 5, reference numeral 15 denotes an inner die holder, and screw holes 45 into which hexagon socket head bolts 43 attached to the four sides of the outer die holder 13 are screwed are biased on each side of the rectangular flange 140 of the inner die holder. 43, the inner die holder 15 is aligned with each other's spherical surface 13 with respect to the outer die holder 13.
It is attached so that it can rotate around the spherical center of a and 15a. 40 is a hole for attaching the die holder 28.

In FIG. 6, reference numeral 28 denotes an inner die holder 1 in addition to a fuel inlet 27 that holds the die and opens locally from the back side in the radial direction.
5] and a mounting bolt hole 42 into which the lubricating fitting 31 is fitted and mounted.

In FIG. 7, reference numeral 3] denotes a lubricating fitting that is fitted and integrally attached to the die holder 28, and is provided with a spout 30 that communicates with two oil passages between the die holder 28 and the lubricating fitting 31. Reference numeral 42 denotes a hole 1 for connecting the die holder 28 and the lubricating fitting 31.

[Effects of the Invention] The present invention has the above-described configuration, and the center of the die can be universally adjusted by tilting it in any direction, moving vertically, horizontally, and turning in the circumferential direction. Trapezoidal, L-shaped, and
When drawing irregularly shaped materials such as a U-shape, by moving and adjusting the die center in advance to the side that tends to curve, the tendency to curve toward the thinner side can be corrected, and a straight product can be drawn without impairing the straightness after drawing the product. It is possible to reliably and easily suppress bending and warping of drawn products, and to obtain products with accurate dimensions and no bending.

Furthermore, since lubricating oil is sprayed from the surrounding area onto the material just before it passes through the die, it is possible to reliably and easily eliminate die seizure and scratches.

[Brief explanation of drawings]

FIG. 1 is a schematic front view showing one embodiment of the device of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is an enlarged cross-sectional view of a part of FIG. 1.
Fig. 4 (A) is a rear view of the outer die holder inserted into the die play 1~, (B) is a cross-sectional view of the same, Fig. 5 <A> is a rear view of the inner die holder, and (B) is a cross-sectional view of the same. , Figure 6(A)
is a rear view of the die holder, (B) is a cross-sectional view of the same, and Fig. 7 (A)
is a rear view of the lubricating fitting, and (B) is a cross-sectional view thereof. stand, 4... die plate, 6... air cylinder, 9... operating shaft, 10... pusher, 12... notch space, 13... outer die holder, 14... square Flange, 15.Inner die holder, 17.Fixing wedge, 18.
- Wedge, 19... Operating shaft, 20 - Screw part, 21... Die, 22... Fan-shaped gear, 23 - Rack gear, 24...
・Rotation axis, 25・Pointer, 26 Scale plate, 27-・Oil filler port, 28・Die holder, 29・Oil pipe, 30・Spout port, 31・・Lubrication fitting, 33・・Kai 1 Herola, 3
4. Material guide device, 35. Oil pan, 43. Hexagon socket head bolt, 45. Tapered hole. Applicant Kawazoe Machinery Co., Ltd. Representative Patent Attorney Terumi Kotani Patent Attorney Yasushi Oshima Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 (A) (B) Figure 7

Claims (1)

[Claims] (1) The drawing machine stand is moved left and right by a cylinder and a manual or automatic pusher, and the engagement slide between the fixed wedge provided on the lower surface and the wedge screwed into the threaded part of the operating shaft suspended horizontally below the stand. A die plate that is raised and lowered by movement is provided, a circular outer die holder having a square notch cavity is fitted in the center of the die plate, and an inner die holder holding a die inside is fitted through the square notch cavity. A ring-shaped die holder with an oil supply passage provided on the rear surface of the inner die holder and a lubricating fitting fitted within the die holder and having an oil passage and a spout that communicate with the oil supply passage are installed, and immediately after the fitting. A material guide device equipped with guide rollers with adjustable intervals and an oil receiver for lubricating oil are installed, and a rack gear on a rotating shaft horizontally mounted on the top of the die plate is attached to the fan-shaped gear attached to the top of the outer die holder. A die adjusting device for an odd-shaped rod drawing machine, which rotates the die through an in-meshing die holder and displays its rotation, elevation, and left/right movement on an appropriate display device.