JPS5919538Y2 - Equipment for making clip members for railway track fastening - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an apparatus for making a clip member for fastening railway tracks.

The present invention includes a support device for supporting a red-hot metal rod between its ends, first and second support members, and first and second support devices respectively mounted on the first and second support members. 2 members, first and second molding surfaces formed on the first and second members, respectively, and first and second movable bending members mounted on the first and second support members, respectively. and moving these movable bending members relative to the first and second forming surfaces, respectively, so that the movable bending members bend the portion of the metal rod around the first and second forming surfaces, respectively, on opposite sides of the portion. bending the metal rod to form two U-shaped bends in the metal rod without moving any portion of the metal rod such that the end portions of the metal rod are oriented in substantially opposite directions and overlap without touching each other; and a device for creating relative motion between the supporting members to cause them to move apart so that the bent metal bar moves away from the bent area. An apparatus for manufacturing a clip member for fastening railroad tracks, characterized by:

The present invention will now be described in detail with reference to preferred embodiments illustrated in the accompanying drawings.

The members shown in FIGS. 1 and 2 must be at least 0.8 c
It is formed by bending a red-hot spring steel bar with a circular cross section and a diameter of m.

It has two ends A and B, a first part 1 forming a substantially straight leg from one end A to the other end B;
a second portion 2 having an inverted bend; a substantially straight third portion 3 substantially parallel to the first portion 1; a fourth portion having an inverted bend; It has a parallel substantially straight fifth section 5.

In this way, two U-shaped bends are formed in the steel rod, part 3 being substantially straight and forming one arm of each.

The other arms of the U are parts 1 and 5, and the lengths of the two arms of each U are not equal.

Inversion bends 2 and 4 lie in two planes inclined at an angle of approximately 65° to each other.

Therefore, as shown in FIG. 1, when viewed from a certain direction, it looks like the letter e reflected in a mirror (the end A is visible in front of the fourth portion 4).

And as shown in Figure 2, when viewed from the other direction, the English letters ■
It looks like a shape.

One arm of this alphabetic letter ■ is longer than the other arm, because the radius of curve 4 is thicker than the radius of curve 2.

FIG. 1 clearly shows that the bent end portions of this member overlap without touching each other.

FIG. 2 illustrates that the lateral space between them is larger than the diameter of the rod.

The first bending device includes first and second carriages 6 and 7 (FIG. 3).

These carriages are associated with hydraulic cylinders, not shown in FIG. 3, which cause the carriages 6 and 7 to move in opposite directions parallel to each other.

That is, the carriage 6 is moved to the left and the carriage 7 is moved to the right at the same time, then the carriage 6 is moved to the right, and at the same time the carriage 7 is moved to the left.

These carriages 6 and 7 carry bending dies 8 and 9.

These dies 8 and 9 are rigidly but removably connected to columns 10 and 11 of carriages 6 and 7, respectively.

The dies 8 and 9 have respectively forming surfaces 12 and 13, the straight upper parts of which form respectively the fifth part 5 and the first part 1 of the part.

Each of the dies 8 and 9 has a curved end portion (not shown in FIG. 3) of the forming surface to form a reverse bend portion 4 and 2, respectively, of the bent member.

Each of the dies 8 and 9 is provided with a recess 14, and when the carriages 6 and 7 are brought close to each other, a stationary member 15 suspended above lies partially in each of the two recesses 14, and these The carriages 6 and 7 occupy their end positions when the surfaces bounding the ends of the recess abut the member 15.

The dies 8 and 9 also have recesses 16 which provide space for receiving the red-hot steel rods entering the device.

The central portion of the length of the steel rod is supported and gripped by the die at the boundaries of the recess 16.

This central part of the steel bar forms the third part 3 of the member shown in FIGS. 1 and 2.

The carriages 6 and 7 carry first and second substantially C-shaped arms 17 and 18.

These arms are mounted at one end for rotation about an axis 19 or 20, respectively.

Each arm 17 or 18 carries at its free end a roller 21 or 22, whose axis of rotation 23 or 24 is parallel to axis 19 or 20, respectively.

The distance between axis 19 and axis 23 is equal to the distance between axis 20 and axis 24.

However, the diameter of roller 21 is smaller than the diameter of roller 22, and the straight upper part of surface 12 is higher than the straight upper part of surface 13, so that part 3
and portion 5, allowing the distance between the two to become larger;
In addition, the radius of the curved portion 4 is allowed to be larger than that of the curved portion 2.

A bent member may bend part 1 to a larger curvature, make part 3 not parallel to part 1, bend part 3 to a larger curvature, make part 5 more parallel to part 1, or make part 5 more parallel to part 1. By bending the material to a greater curvature, it is possible to obtain a material different from that shown in FIGS. 1 and 2.

It is also possible for the curved parts 2 and 4 to have the same curvature, for the rollers 21 and 22 to have the same diameter, and for the straight upper parts of the surfaces 12 and 13 to be at the same level.

Another possibility is to have the clip member shaped like the letter e in a view similar to FIG. 1, with the end A again in front of the fourth part 4.

FIG. 3a shows the molding surface 13 of the die 9, with a bend on the left side forming the reverse bend 2 of the clip member shown in FIGS. 1 and 2. FIG.

There is also a straight portion which receives the first portion 1 of this bent clip member.

Recess 16 has a lower end bounded by ledge 16A.

ledge') 16A extends from the left end to the right end of the forming surface 13 and forms a trough with the corresponding ledge of the die 8;
A straight steel bar is received here before the bending process begins (indicated by dotted lines in Figure 3a).

Die 8 is the same as die 9 except that it is dimensioned differently to increase the radius of bending.

If desired, the dies 8 and 9 can be provided with portions that engage with each other when the dies are put together.

FIG. 4 is a side view, and the scores indicate the steel rod in the position gripped by the dies 8 and 9.

The steel bar is in the recess 16 prior to the bending process.

The clip member bent by dies 8 and 9 is shown by a solid line.

Arms 17 and 18 and rollers 21 and 22 are shown schematically in solid lines in their positions before the bending process.

The path of rollers 21 and 22 during the bending process is shown by dotted lines.

In FIG. 4, all axes 19, 20, 23 and 24 are assumed to be parallel for simplicity.

FIG. 5 shows carriages 6 and 7.

These carriages are equipped with a hydraulic piston cylinder arrangement 26
, 27 along the floor 25.

A hydraulic piston-cylinder arrangement 26,27 is connected to the carriage and to the floor 25.

The mechanism between the carriages is omitted.

Hydraulic piston-cylinder devices 28 and 29 housed in carriages 6 and 7 are respectively connected at their upper ends to carriages 6 or 7 and at their lower ends via cranks and shafts 30 or 31 to arms 17 or 18. These can be rotated.

FIG. 6 shows the first bending apparatus 32 illustrated and described with reference to FIGS. It is shown extending downward from right to left, parallel to .

Although only carriage 7 is shown, carriages 6 and 7 move in a direction perpendicular to the plane of the drawing.

FIG. 3 is a view seen in the direction of arrow 32a.

Device 32 includes a gate 33 .

This gate 33 can be raised and a pre-cut red-hot steel rod can be introduced through it to access the dies 8 and 9.

This gate is then closed to prevent the subsequent entry of the next steel bar.

Beyond the dies 8 and 9 there is a retractable sensor 34 positioned so that the bottom end of a straight steel rod in the recess 16 in the die rests against the sensor 34. It is.

A downwardly sloping chute 35 with a square cross-section is located below the device 32 to receive the clip member shown in FIGS. 1 and 2 that has been formed and released by the bending device 32.

At the bottom end of the chute 35 is a rotatable square-shaped end open box 36 which receives a clip member from the chute 35.

Beyond this box is a fixed sensor 37 mounted on a fixed plate 37a, which prevents the bent clip member from sliding out of the box 36 and detects its presence.

The bent clip member is transported out of the box 36 by gravity (this will be discussed below).

Then, it reaches the second bending device.

This second bending device consists of a bed 3 consisting of two parts.
8.39 and a hydraulic press 40.

This press 40 includes a forming head 41 which carries a forming tool (not shown) and which descends once upon the steel bar while it is still red hot in the aforementioned die. This is then bent to complete the rail fastening clip member.

The hydraulic piston-cylinder arrangement 42 has a two-part bed 38.
．． It is connected to a movable part 39 of 39, which part 39 can be moved in the direction indicated by arrow 43.

This portion 39 is shown in its fully downwardly retracted position and would normally contact portion 38.

FIG. 7 shows the end of chute 35, the ■-shaped box 36 of FIG. 6, the three-part die 46, 47 (not shown in FIG. 6), and parts 38 and 39, respectively.
FIG. 4 is a view from above of parts 46 and 47 mounted on the vehicle.

■The letter-shaped box forms part of the space between the members, and this member 4
4 is rotatable around an axis 45, changes the posture of the bent lip member, and transfers it to dies 46, 47.

A dividing line 48 is shown between the two parts 46 and 47 of the die.

The fixed part 46 of the die includes a groove 49 in which the part 1 of the clip member slides.

The movable part 47 of the die includes a hole 50 into which the first part 1 is slid until its free end abuts the sensor 51 with its free end.

The forming tools carried by the head 41 of the press 40 descend together and impinge on parts 3 and 5 of the clip member.

In a similar manner, other members are lowered to hold part 1 and give the clip member the desired final shape.

The fixed part of the die carries a cylindrical plunger 52;
This plunger 52 is attached to portion 1 of the finished clip member.
act to move the clip member into the fixed part 46 after the fixed and movable parts 46 and 47 have separated at the end of the bending process.
It is repelled from the body.

FIG. 8 is an end view showing box 36 and axis 45 on member 44. FIG.

FIG. 9 is a view looking down on the chute 35 in FIG. 6.

Box 36 is shown in two positions.

In the right position, box 36 receives the clip member from chute 35.

In this case part 3 of the clip member is at the bottom corner of the box 36 and part 1 goes to the top right corner of the box.

After 1120 degrees of rotation between the members about axis 45, box 36 is in the left position shown.

In this position part 1 of the clip member is now at the bottom corner and part 5 is at the top left corner.

The clip member slides out of the box 36 and the portion 1 fits into the groove 49 of the die 46 and the hole 5 of the die 47 as previously described.
Going to 0.

Rapid rotation between the members is provided by an aerodynamic piston cylinder arrangement 52A.

This device 52A rotates the member 44 via gears.

When the box 36 is in its left position, the end of the chute 35 is blocked by the member 44, thus preventing the clip member in the chute 35 from leaving the chute, while the box 16 receives it. is not in a position to insert it.

The operation of the two bending devices is as follows.

First, the dice 8 and 9 of FIG. 3 are spaced further apart from the position shown in FIG.

Arms 17 and 18 are in the position shown in FIG.

The steel bar enters the first bending device via the open gate 33.

The dies 8 and 9 do not grip the steel bar at first, but soon enough they are close enough to grab it, and the sensor 34
Guide this until it touches.

The sensor causes gate 33 to close and hydraulic devices 26 and 2 to close.
7 moves carriages 6 and 7 and then dies 8 and 9 to grip the steel rod in recess 16 and bring it into contact with member 15.

The sensor 34 is retracted from contact with the end of the steel rod.

Hydraulic devices 28 and 29 actuate arms 17 and 1.
8 are simultaneously moved from the position shown in FIG. 4 to the position shown in FIG.

In this way, the steel bar is bent into the shape shown in FIGS. 1 and 2.

Other sensors (not shown) detect when arms 17 and 18 reach their end positions.

After actuation of the hydraulic devices 28 and 29, the arms 17 and 18 return to the position shown in FIG. 4, and the hydraulic devices 26 and 27 act to pull the carriages 6 and 7 apart.

The dies 8 and 9 are quickly moved out of the clamp ready position and the bent clip member falls through them into the chute 35 and attaches its portion 3 to the bottom of the chute.

The sensor 34 returns to its initial position and the hydraulic devices 26 and 27 return the carriages 6 and 7 to the clamping ready position.

The gate 33 is opened again, ready for the next steel rod to enter.

The clip member that has been bent slides down the chute 35 into the triangular box 36 by the action of gravity.

This actuates sensor 37 and initiates operation of device 52A, which causes the clip member to pass to the second bending device as described above.

The sensor 51 detects that the bent clip member has come to a position within the die of the second bending device, and activates the press 40.

As the forming tool of the second bending apparatus descends and then rises again, the hydraulic system 42 rapidly retracts the floor section 39 (and the die section 47) into the position shown in FIG.

Plunger 52 releases the clip member from fixed portion 46 of the die, and the ejected finished clip member falls between portions 46 and 47 and then between portions 38 and 39 into the quenching bath.

Hydraulic device 42 returns portions 39 and 47 to die 46
, 47 are closed again.

Device 52A returns triangular box 36 to alignment with chute 35.

The second bending device is now ready to receive the next bent clip member.

Although the present invention has been described above in detail with reference to the preferred embodiments illustrated in the accompanying drawings, the present invention is not limited to these specific embodiments, and many changes and modifications may be made without departing from the spirit of the present invention. Of course.

[Brief explanation of the drawing]

Figures 1 and 2 are a plan view and a side view of a clip member made by bending a steel rod, and Figure 3 is a side view of a clip member made by bending a steel rod.
Fig. 3a is a side view of the die shown in Fig. 3, and Fig. 4 is a view of the other parts shown in Fig. 3. 5 is an end view of other parts of the apparatus shown in FIG. 3; FIG. 6 shows the first bending apparatus shown in FIGS. 3 to 5 and this first bending apparatus; FIG. A side view of the apparatus including a second bending apparatus arranged to operate after the processing of the processing apparatus, FIG. 7 is a plan view showing each part of the apparatus of FIG. 6, and FIG. View of the part shown in Figure 7 from different directions, No. 9
The figure is an end view of the portion shown in FIG. 8 of the apparatus of FIG. 6. 1... First part, 2... Second part, 3... Third part, 4... Fourth part, 5... Fifth part,
6, 7... Carriage, 8, 9... Dice, 10
．． 11... Pillar, 12, 13... Molding tube, 14...
Recess, 15... Fixing member, 16... Recess, 17
．． 18... Arm, 19.20... Axis line, 21.2
2... Roller, 23.24... Axis line, 25... Floor, 26.27.28.29... Hydraulic piston cylinder device, 30.31... Axis line, 32... Device, 35・
...Chute, 36...Box, 37...Fixed sensor, 37 a...Fixed plate, 40...Press, 41
...Head, 42...Hydraulic piston cylinder device,
44... Member, 45... Axis line, 46.47... Dice, 49... Groove, 50... Hole, 51... Sensor, 52A... Aerodynamic piston cylinder device.

Claims (1)

[Claims for Utility Model Registration] A support device 16A that supports a red-hot metal rod at a portion 3 between its ends, first and second support members 6.7, and these first and second support members. The first and second members 8°9 each mounted on the
first and second molding surfaces 12.13 formed on the members 8, 9, respectively, and the first and second support members 6, 7.
the first and second movable bending members 21 respectively mounted on the
．． 22 and these movable bending members 21 , 22 are moved relative to the first and second molding surfaces 12 , 13 respectively so that these movable bending members touch the first and second molding surfaces respectively on either side of said part 3 . 12. 13 bending the metal rod end portion 1, so as to form two U-shaped bends 4, 2 on the metal rod without moving the metal rod portion 3; 28.30° 29, 31, and said support members 6, 7;
and a device 26,27 for causing a relative movement between the supporting members to separate them, and for causing the bent metal rod to move away from the bent area. Clip member manufacturing equipment for railway track fastening.