JPS5829529A - Pipe bending machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the manufacture of pipes and rods, and more particularly to a pipe bending machine for JIH bending pipes and rods into a packaged state and coil winding. , can be found in applications such as output devices of tube welding machines or tube rolling machines.

The prior art machines currently in use for the Vibrator old machine are:
To obtain a whole pipe coil with uniform diameter convolution,
Or use a short length pipe J11! planned for)
1. ing. What these machines lack is a device for coiling forward into the nib convolution, and [11
It is a device for maintaining a preselected diameter of a convolution when the mechanical properties or cross-section of the pipe are changing depending on the length of the pipe. As a result, the coils obtained in this manner have a convolutional feature of non-uniform diameter and are not sufficiently compact, but only when they are subsequently used. The consequences of intertwining the convoluted parts with each other, such as pipe breakage, draw pliers, and the surface treatment equipment, etc.]
? This causes high processing speed and low T of efficiency of the finishing machine.

Conventionally known drawing and bending devices include a mandrel holder for completely fixing the mandrel, a driven drum for receiving the pipe to be bent and folded, and a pipe feeding and pipe coil carrying device. However, the i+ve coil produced by this device has a non-uniform diameter convolution, the diameter value of which depends on the force applied during the drawing-bending operation, the cross-sectional and pipe wall thickness, or the Depending on the mechanical properties of the pipe being used, the diameter of the coil may be greater than or less than the diameter of the supporting drum.

The resulting coils lack continuity and stiffness, and the pipe turns forming the coil tend to intertwine, thereby interfering with subsequent processing of the coil, especially for coils of considerable length and small cross-sectional diameter. This is noticeable in the case of pipes.

Wire Koiwo is also known. This machine has a bending capstan or block, a guide and pressure roller system, an electric drive, a coil carrying system and a complete bending system.

The disadvantages inherent in this machine are nearly identical to those in the previously described device. Furthermore, this machine does not have a coil placement device for making tightly packed bundles or packages without intertwining the nonoib coils.

Other known machines for full rolling bending of short lengths of pipe include a support frame, a pipe bending device, and a drive device.

Furthermore, other prior art/? The bending machine has a vibrator feed rate setting neck and a plurality of holes arranged on the frame, and 14 of the rollers are bending rollers. J for the device, 5-shell follower roller round and guide:
It has a drive device and a drive device for applying motion to the bending roller in the bending plane from one die block to the bending roller in the bending plane. However, if the bend (roughness of the pipe or its cross section is cut), this setting position ensures the preselected bending radius. I can't.

Also, the machine mentioned above can process pipes of limited length determined by the length of the mold block. Therefore, this machine cannot be used for bending longer pipes. Can not.

The present invention aims to provide a pipe bending machine that makes it possible to process relatively long pipes with varying breaks, independent of variations in mechanical properties along the length of the pipe. , the resulting pipe bundle or coil has a preselected convoluted diameter and is continuous so that it can be easily fed at high rates on a draw bench or in a particular pipe processing inn without tangling with each other. With coil vibe: and subsequent processing can be done.

This +L is achieved by the following. That is, a pipe feed speed Jff setting device, a bending device having a bending roller and a two-movement device for moving the pipe in half the bending plane 1η, and a bending device having a bending roller and a bending device for moving the pipe in half the bending plane 1η, In a pipe bending machine having a following roller and a pipe coil cradle coupled with a front i1 drive device 11, the following roller moves along the incoming pipe's progress JIb. 1. The pivot axis of the two-armed tripod bar is adapted to cooperate with the pipe essentially along the bending roller 1fff along the ttt1 axis, and is fixed to one arm of one of the tripod levers. Intersects the center line of the incoming pipe,
The other arm of the tripod lever is adapted to engage and rest alternately with one of the two stationary contacts of the drive for moving the bending rollers. It has a driving force for hyperactivity, and a driving point for the device.

Preferably, Ailki 1■14Gerola i4gqi
The movable contact point on the neck of the tripod lever is designed in the same way as the arm length of the tripod lever.

This '0I moving contact is connected to the leg length of the tripod lever within limits determined by the preselected inner diameter and outer diameter of the coil.
A device 6 for adding to the reciprocating movement can be installed at the contact point. or the thickness for moving said bending roller (the stationary contacts of the moving device are relative to said moving contacts within limits determined by the preselected inner and outer diameters of said pipe coil); It is placed on a stand where it can be left to rest.

Preferably, the MiJ coil pedestal is synchronous with the bending roller, and the MiJ coil pedestal is synchronously moved with the amount of movement force of the Mi'' bending roller.
II+ in a half plane essentially parallel to 100j+ of the pipe.

In order to accommodate compact coil bundles, the pipe bending machine has an overhanging guide structure located approximately in the pipe bending plane and having a length at least equal to the maximum coil diameter; , can have an idler roller to support the vibrator rotation towards the coil cradle and allow its free movement.

The pipe bending machine according to the invention has varying mechanical properties ν
This makes it possible to coil bundles of pipes of virtually any length, regardless of their length, and with cross-sectional diameters that vary along their length.

This machine can produce bundles of vibrators with preselected coil diameters placed compactly in bundles.

Hereinafter, a pipe bending machine according to the present invention will be exemplarily described with reference to the accompanying drawings.

With reference to FIGS. 1, 2 and 4, a pipe bending machine according to the invention comprises a device l for feeding a pipe 2.
and a knob bending device plug including an idler roller 3, a bending row 24 and a device 5 for imparting movement thereto. A device for adjusting the convoluted diameter of the pipe 2 (7) is essentially a rear part of the bending roller 4 along the traveling oil path of the pipe 2; -J-Z
+, J: It was picked up from roller 6 and tripod lever 7, and it was 1 t. One stroke of lever 7
i-, i, follow-up roller "2 =+:>ri L, II
For the bowl on the I+ side, move the EJ motion y point 8 of the drive unit +18+5 to column I.
2. This synopsis b8 is a stationary contact of conductive material 9 ;t, -
J: Figure 40, Figure 2, and Pressure 31)
And'd1; 7H west with Ki α bone, Otsu. ko f'-rano% stop 1-i, <-, T 9: J=・J-hi 10
Ha, r? :C MH4H, ;21'pk 1'l Te made plate 11 is divided by 1.

2241 bending machine Jl fixed to its frame 1z.

7) Guide structure, 37, and 1)
The second guide structure is ;! All the rollers 14 are j'). The frame 12 is set so that the tripod lever 7 is at the farthest position.
: a spring 15 which elastically presses the spring 15, and a frost 1. which limits the movement of the tripod lever 7; : 151'4] () and
Turn the Y roller 4 to l>i: and remove the coal from the l:
There is a switch-off sensor j7 and a switch-on sensor 18.

To achieve a result on a coil of pipe that is being bent,
The coil pedestal device row 19 (Fig. 1 top and Fig. 4) is broken, and it is connected by the same contacts 8, 9, and 10 to ↑(+
It has a total of 20 control devices.

In order to give all the coils packed with length ratio C with outer diameter L and inner diameter of rfr man, this pipe bend 1 the (strange)
The plan is to add all the power to the pipe bending roller 4, the drive faI5, the coil pedestal 19, and the drive device 20 for rotation. 111i, the movable and stationary contacts 8, 9'' and 10 are arranged to be moved by force. This is iIJ'! l
(This is done by moving the I+ contact 8 (Fig. 5) to the length of the tripod lever 7;
, gear 22 and drive reversal switch 2 connected to a separate drive device Z3! ], Rack and gear drive with 25! Use any known suitable structure of the drive ω arrangement f6', such as the 10 arrangement fft, or any suitable arrangement as shown in FIG. 6)ll! The stand 2 carrying the stationary contact 9, 1.0 may be moved for one time in the drive diJ+ device with installation = i, which is connected to the threaded rod 20 and a separate drive kV '$ v jψ. It has a sharpened nut 27 and a limit or reversal switch 29, dt) for reversing the rotation of the drive Z8.

The pipe bending machine according to the invention operates as follows.

It passes through the pipe 2 (FIG. 1 shows the glossy feed device 1), the pipe, and the roller 3, and is transferred to the barber shop, where it comes into contact with the roller 4. During this time, the bending roller 4 and the following roller 6 are in the initial position as illustrated in Figure 2, and the bending roller 4 is
Good luck i1i! The device I'4-5 for adding +' is deactivated. Next: ・The drive device a5 is zN at the end of the ) e Eve 2.

Switch-on sensor 1 of normal construction such as a nine-inch or limit switch adapted to cooperate with the end
8 times the force is applied. ! , if < m+ ”A
In the song in which the fif 5 (Fig. 2) is energized, the movable contact 8 comes into box air contact with the stationary contact 9, so the bending roller 4
Bend Tsuyaive 2 completely in the direction from left to right.

During this bending process, the following roller 6 moves to the right in cooperation with the bending pipe, and the tripod lever 7
The movable contact 8 pivots around the center of rotation of the pipe 2.
and move the stationary contact 9 horizontally 1+7rL downward.

When point 8 moves to insulating plate 11 (Fig. 3), ?
The air circuit is disconnected and the drive ii'5 is deenergized to fix the bending roller 4 in its current position, so that the coil of the pipe being bent has the required diameter.

In this way, the follower maintains a setting of the diameter of the pipe coil. For example, if the section of pipe entering the bending device is less stiff than the section that has already passed through this device lt, the vibe convolution diameter begins to decrease. This also results in moving the follower roller 6 to the right, which causes the lever 7 to move between the movable contact 8 and the stationary contact 10.
will be engaged with. This operation continues until the follower roller 6 returns to the set position by energizing the drive device 5, swinging the bending roller 4 all the way to the left and increasing the diameter of the pipe coil, and the contact 8 is insulated. board] will move upward until it enters 1. Thereafter, the drive 5 is deenergized and the bending roller 4 is fixed in position.

The follow-up device is attached to the bending device at -1m of the pipe being bent.
When the rigid part enters, a similar operation is performed to correct the coil diameter to the setting i+η. In such a case, the coil diameter tends to increase, and the follower roller 6 moves leftward.
As a result, the contacts 8 and 9 are fully closed, and the bending roller 4 is moved 1'4 to the right. Start j ill 1,
The diameter of the coil will decrease by k# until the diameter of the coil increases.

Coil's NR bloodsucking (to determine all G numbers, Tsukasa)
14 point iN along the arm length of all levers 7
+ and then fixed or stopped by any known device such as a screw at fffJ.

In order to eliminate damage to the nozzle coil surface and to avoid twisting and untwisting the incoming pipe 2, the glossy tube coil after passing through the bending rows 74 must be placed in an idler row along the guide structure 13. 214, and then placed on top of the coil cradle [9]. After the pipe 2 rests on the generally disc-shaped coil-in base 19 that can rotate about its axis, the pipe 2 causes the pedestal 19 to rotate about its own axis. This rotation Qll+ substantially coincides with the central axis of the vibe coil in the direction perpendicular to the pipe bending plane.

When the diameter of the coil changes, place the coil in the coil cradle 1.
9, this coil pedestal 19 is connected to the bending roller 4 by means of the drive device far 20 j,
In the direction of J, accordingly, their contacts are made to be ilj+ (i.e., their contacts are applied to the drive of the bending roller 4!-5 and are essentially 1h )
energize the drive unit #20 and reverse the drive unit #20. Reducing the diameter of the pipe coil is achieved by moving the bending roller 4 in the left-to-right direction and by moving the coil cradle 19 in the direction of the bending roller 4, i.e. in the right-to-left direction. Nine. Conversely, to increase the coil diameter 2, the bending roller 4 is moved to the left and the coil pedestal 1 is moved to the right.

In order to fully align the tightly packed coils wound in several rows with respect to the bending plane t, the drive unit which applies movement to the bending roller 4 has a drive unit IW1 of the light 5 and stationary contacts 8, 9 and 1().
The forced movement of the coil is performed within the limits determined by the inner and outer diameters of the coil. For this purpose (・
Therefore, various installations are possible as explained below.

Referring to Fig. 5 as an example of the modification, the diameter of the coil is 1M.
] Rack 21 that engages with gear 22
Use the lever 7 to move the length of the lever 7 to the point 8. Changed within the set limits by adding J′. When the rack 1 is reversed to the driving device 5, the movement direction of the rack 21L and the lifting point 8 is fully loaded and cooperates with the contacts 24 and 25 of the reversing switch. As a result of the 1-variation of the contacts 8 on the arm of the tripod lever 7, the drive 5 of the bending roller 4 is in contact, (-, (9J)" and 10
All over the layer, bending roller No. 4, coil No.
White, the entire diameter is increased or decreased by 1N (this is done within the bending plane).

In the example shown in FIG. 6, the radius of the coil rotation is 1' as a result of the entire movement of the platform carrying the stationary contacts 9, i, - and 10; if this movement: Threaded rod 20, nut 27, and nut j'R! lc'r :'A Ill
1B and make four.

Contact points 9 and 10 are moved together with the stand and work together alternately with contact 8 to drive drive device 5 and 20. energize. These drives 5
and 20 is the diameter of the coil ′(i-changed, the entire coil cradle 19 Ill or J2 operates simultaneously, and the same 11ii!+ 1!'1 between the coil convolution and the coil cradle 19
4, thereby giving the coil diameter a variation within a preselected range.

When the bush end of the pipe 2 enters the pipe feed 4-'- position (Fig. 1), the switch-off sensor of the optional ffy meter (e.g., photoelectric sensor or limit switch) 1・Then, the follow-up device is released 1, and the drive device 5 of the roller 4 is energized to the initial position (Fig. 2).
Roller crest of pipe feeding device 1 and roller 3 of bending device
Expand the coil to release the coil vibe glue and end, and the completed coil is removed from the coil holder. The tripod lever 7 is also moved to the left by the action of the spring 15, resulting in the F upright position for the first time in the J role, as best shown in FIG.

When the leading end of the following 74 eve 2 approaches the vibrator feeding device 1, the supernatant rollers are moved in the direction of approaching each other by the recording motion C of the pipe 2 and the sensor 17.)
When I came into contact with Eve 2, No! HE) r f to feed Eve 2 to the bending device. As a result of the leading end of the pipe 2 interacting with the sensor 18, the drive 5 of the bending roller 4 is energized and iJ
When the ilR+ contact 8 passes all the way through the insulating plate 11, the drive unit of the 1i14 slave, b and coil pedestal! 2 (I is suspended.

The operation of the carrier pipe bending machine is as described above and the turner 1.

[Brief explanation of the drawing]

Figure 1 shows 'P irr+' of the pipe bending machine according to the present invention.
Figure 2, the first crosspiece of the bending motion (・ζ)
]・To the bending device of the vibrator bending machine and the 1-;
The top view of the slave device west, Figure 3 shows the bending roller Yc#m
1st ν month U contact point rli+ 11IIJ
FIG. 4 is a side view of the pipe bending machine, and FIG. 5 shows the movable contacts and their drive. Plan view of tripod lever with IJ11 device, 4℃61￥1 is r4i! FIG. 3 is a plan view of the tripod lever with III+ contact and stationary contact and its drive; 2...Pipe, 4...Track 1 The Roller, 5...Full bending roller, drive device for flil+, 6...
Following roller, 7...Tripod lever, 8...Movable contact,
9, 10... Stationary contacts, 13... Ide structure, 14
...Idle roller, 19...Coil holder. Applicant's agent Kiyoshi Inomata (19) n1'1 Continued from page 1 Suzyushin Soviet Union Moscow Ulitsya Kerchesiskaya 3 Kabe 47 0 Inventor Igor Iosifovytsch Dobkin Soviet Union Moscow Ulitsya Varylova 52 Korpus 3 Rikiichibe-213 0 Inventor Yuri Vladimiroui Tutsi Krasovsky Soviet Union Moscow Sadwaya Trium Arnaya Uritsutsa 4-10 Kabe 55 ■Applicant Levdinsky Zavod Po Oprabotke Tsvetnykh Metalova Soviet Union Huda Sperdlovskaya Oprasti ( (no street address)

Claims (1)

[Claims] 1. A bending device having a No. 2 blade feed speed setting device, a bending roller (4) fully supported and a drive device (5) for moving it within a bending plane, and A pipe bending machine comprising a precise follow-up roller (6) connected to the drive device (5) for moving the roller (4) and a pipe coil cradle σ9), the follow-up roller (6) ) j・sai,
Bending rollers (
4) and is fixed to the -arm of one two-arm lever (7), the pivot axis of said two-arm lever being adapted to cooperate with said pipe (2) essentially at the rear of said two-arm lever (7); The other arm of the two-armed lever intersects the center line (of the pipe)
The bending roller (4) 'r $ is arranged to be alternately engaged with one of the two stationary contacts e) and Q (J) of the drive device (5) for movement. , a drive device for moving the bending roller (4)k (5)
A pipe bending machine characterized in that it has a movable contact (8). 2). The movable contact (8) of the j drive device (5) for moving the bending roller (4) is configured to move along the arm length of the two-arm lever (7). Machine according to scope 1. 3° Said movable contact (8) adjusts to the arm length of said two-armed lever (7) within limits determined by the preselected inner and outer diameters of said pipe coil. along the movable contact (8
3. Machine according to claim 2, characterized in that it has a device for applying a reciprocating motion to the machine. 4, said bending roller (4)'ff: determined by the stationary contact (9) of the drive for moving and the preselected inner and outer diameters of the eve coil (1 [υ is mentioned above) and Claim 1, characterized in that the contact point h1'' is mounted on a stand which is adapted to move relative to the rIJ movable contact (8) within the limits of 5. The coil holder (■9) is attached to the front 11 bending roller (4).
), the bending roller reciprocates in a plane substantially parallel to the plane of the bending knob in the moving direction 1. The machine described in any of Clause 2, Clause 3, and Clause 4. 6. An overhanging guide 11q body (1
3) k, and the guide structure has the coil cradle (1,
Claims 1, 2, 3, i.
Machines described in either Section 4 and Section 5.