CN207188462U - Pipe feeding system - Google Patents

Abstract

Pipe feeding system of the present utility model includes storing lathe bed and feeding lathe bed, in addition to auxiliary feeding lathe bed and core bar clamping device.Pass through the co-ordination of feeding lathe bed and auxiliary feeding lathe bed; based on push; embrace and realize feeding in continuous material supplemented by sending; i.e. pipe mill is not shut down and the connected head-to-tail mode for continuing through milling train main frame of every pipe; it is that a kind of yield is high, lumber recovery is high, product quality is high, the pipe feeding system of main frame load more stably feeding in continuous material.

Description

Pipe feeding system

Technical field

Tubular object extruding field is the utility model is related to, in particular to pipe feeding system.

Background technology

Diagonal rolling pipe mill is the process equipment for carrying out cold conditions rolling to hollow forging using annular distance shape.The machine has preferable cogging Can, also can rolling high precision non-ferrous metal seamless pipe.Diagonal rolling pipe mill maximum feature is that single pass working modulus is big, rolled piece crystal grain group Knit and recrystallization annealing is realized by aximal deformation value rolling, strong bar is provided for high-precision thin-wall seamless pipe for further deep processing Part.

Existing diagonal rolling pipe mill group is worked with interval rolling mode, i.e., has often rolled a pipe, and main frame needs to stop, It can just restart main frame after next pipe completes feeding action to be rolled, the rolling of to be rolled every pipe successively is not It is successional.Due to the discontinuity of the operation of rolling, in addition to the influence to yield, also to lumber recovery, product quality, equipment Stationarity etc. has no small influence.

Utility model content

In view of this, the purpose of this utility model is to overcome deficiency of the prior art, there is provided a kind of yield is high, into Material rate is high, product quality is high, the pipe feeding system of main frame load more stably feeding in continuous material.

To solve the above problems, solution provided by the utility model is as follows：

Pipe feeding system, including storing lathe bed and feeding lathe bed, in addition to auxiliary feeding lathe bed and core bar clamping device；

The storing lathe bed is to the feeding lathe bed liftout or pinches feeding；

The feeding lathe bed includes push dolly；

The auxiliary feeding lathe bed, which includes embracing, send dolly；

The core bar clamping device includes two core bar chucks, and a core bar chuck is located at the storing lathe bed and institute Between stating feeding lathe bed, another described core bar chuck is located between the feeding lathe bed and the auxiliary feeding lathe bed；

The pipe feeding system also includes transmission mechanism, and the transmission mechanism driving push dolly and described armful are sent Dolly moves.

In the exemplary embodiment, the storing lathe bed includes feeding clamping and conveying device or material jacking mechanism；

The feeding clamping and conveying device includes at least row's feeding pinch roll and each feeding pinch roll of driving rotates Driver element, wherein, the row feeding pinch roll includes two feeding pinch rolls；

The pinch direction of the feeding pinch roll is towards the push dolly.

In the exemplary embodiment, the push dolly includes trolley body, in addition in the trolley body Material-pulling device；

The material-pulling device, including hollow shaft, claw and elastic pre-tightening mechanism, two claws are in the hollow shaft It is oppositely arranged, or multiple claws circle distribution in the hollow shaft；

Each claw carries the clamping face towards the axle center of the hollow shaft；

Each claw is provided with an elastic pre-tightening mechanism, and the elastic pre-tightening mechanism drives the claw to gather Hold together.

In the exemplary embodiment, the push dolly also includes pusher clamping and conveying device；

The pusher clamping and conveying device includes at least row's pusher pinch roll and each pusher pinch roll of driving rotates Driver element, wherein, the row pusher pinch roll includes two pusher pinch rolls；

The pusher pinch roll pinches direction and the diameter parallel of the hollow shaft.

In the exemplary embodiment, the core bar chuck includes hollow shaft and is circumferentially distributed in the hollow shaft Claw, in addition to clamp drive division and axle sleeve；

Each claw carries the clamping face towards the axle center of the hollow shaft；

The clamping drive division drives the claw to gather or separate towards the axis of the hollow shaft, and the axle sleeve is arranged In outside the hollow shaft and the hollow shaft can rotate in the axle sleeve.

In the exemplary embodiment, in addition to linkage portion and swing arm；

The clamping drive division is straight-line motion mechanism；

The linkage portion is the tapered sleeve with taper hole, and the opposite in the clamping face is to match with the taper hole of the linkage portion Taper cambered surface；

The axle sleeve is coaxially sheathed on outside the linkage portion, and the linkage portion can rotate in the axle sleeve, described Linkage portion is sheathed on outside the claw；

Described swing arm one end, which rotates, to be fixed, the other end and the clamping drive division rotation connection.

In the exemplary embodiment, described armful is sent dolly to include trolley body and described in the trolley body Core bar chuck.

In the exemplary embodiment, the core bar clamping device also includes pinch mechanism, core bar described in the pinch mechanism Between chuck and the auxiliary feeding lathe bed；

The pinch mechanism includes the drive that at least row's core pulling pinch roll and each core pulling pinch roll of driving rotate Moving cell, wherein, the row core pulling pinch roll includes two core pulling pinch rolls；

The pinch direction of the core pulling pinch roll is towards the core bar chuck.

In the exemplary embodiment, the transmission mechanism includes torque motor, variable-frequency motor, reductor and driving-chain, institute State torque motor and the variable-frequency motor and the transmission chain movement is driven by the reductor respectively；

The driving-chain send dolly to be connected with the push dolly and described armful；

The torque motor and the variable-frequency motor alternating movement.

In the exemplary embodiment, in addition to pipe seam detecting device, the pipe seam detecting device are sent into located at the pipe The afterbody of system, the gap between pipe for detecting the pipe feeding system release.Pipe seam detecting device is controlled for intelligence System processed monitors the state of rolling pipe in real time.

The utility model compared with prior art, has the following advantages that：

Pipe feeding system of the present utility model includes storing lathe bed and feeding lathe bed, in addition to auxiliary feeding lathe bed and core Rod holder assembly.By the co-ordination of feeding lathe bed and auxiliary feeding lathe bed, based on push, embrace and realized supplemented by sending on continuous Material, i.e., pipe mill is not shut down and the connected head-to-tail mode for continuing through milling train main frame of every pipe, be a kind of yield it is high, into Material rate is high, product quality is high, the pipe feeding system of main frame load more stably feeding in continuous material.

For enable above-mentioned purpose of the present utility model, feature and advantage become apparent from understandable, preferred embodiment cited below particularly, And accompanying drawing appended by coordinating, it is described below in detail.

Brief description of the drawings

, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.

Fig. 1 shows the pipe feeding system First partial structural representation that the utility model embodiment is provided；

Fig. 2 shows the partial structural diagram of pipe feeding system second that the utility model embodiment is provided；

Fig. 3 shows the partial structural diagram of pipe feeding system the 3rd that the utility model embodiment is provided；

Fig. 4 shows the partial structural diagram of pipe feeding system the 4th that the utility model embodiment is provided；

Fig. 5 shows the structural representation for the push dolly that the utility model embodiment is provided；

Fig. 6 shows the structural representation for the pusher that the utility model embodiment is provided；

Fig. 7 shows the structural representation for the core bar clamping device that the utility model embodiment is provided；

Fig. 8 shows the structural representation for the core bar chuck that the utility model embodiment is provided.

Icon：1- pipe feeding systems；10- storing lathe beds；101- feeding clamping and conveying devices；20- feeding lathe beds；201- is pushed Dolly；2011- trolley bodies；2012- pushers；20121- hollow shafts；20122- claws；20123- elasticity pre-tightening mechanisms； 20124- axle sleeves；2013- pusher clamping and conveying devices；30- auxiliary feeding lathe beds；301- is embraced and is sent dolly；40- core bar clamping devices； 401- core bar chucks；4011- clamps drive division；4012- linkage portions；4013- swing arms；4014- chuck bodies；The traversing drives of 4015- Dynamic portion；402- pinch mechanisms；403- nitrogen charging mechanism；50- driven vollers；60- core bar brackets；70- pipe seam detecting devices；2- tubing rolls Machine.

Embodiment

Hereinafter, the various embodiments of the disclosure will be described more fully with reference to accompanying drawing.The disclosure can have various realities Example is applied, and can adjust and change wherein.Therefore, will be retouched in more detail with reference to the specific embodiment being shown in the drawings State the disclosure.It should be understood, however, that：In the absence of the meaning that the various embodiments of the disclosure are limited to specific embodiment disclosed herein Figure, but the disclosure should be interpreted as covering all adjustment in the spirit and scope for the various embodiments for falling into the disclosure, etc. Jljl and/or alternative.Description taken together with the accompanying drawings, the same element of same reference numerals.

Hereinafter, disclosed in the term " comprising " that can be used in the various embodiments of the disclosure or " may include " instruction Function, operation or the presence of element, and do not limit the increase of one or more functions, operation or element.In addition, such as exist Used in the various embodiments of the disclosure, term " comprising ", " having " and its cognate are meant only to represent special characteristic, number Word, step, operation, the combination of element, component or foregoing item, and be understood not to exclude first one or more other Feature, numeral, step, operation, element, component or foregoing item combination presence or one or more features of increase, numeral, Step, operation, element, component or foregoing item combination possibility.

In the various embodiments of the disclosure, stating "or" or " at least one in A or/and B " includes what is listed file names with Any combinations of word or all combinations.For example, " A or B " or " at least one in A or/and B " may include A, may include for statement B may include A and B both.

The statement (" first ", " second " etc.) used in the various embodiments of the disclosure can be modified in various implementations Various element in example, but respective sets can not be limited into element.For example, presented above be not intended to limit the suitable of the element Sequence and/or importance.The purpose presented above for being only used for differentiating an element and other elements.For example, the first user fills Put and indicate different user device with second user device, although the two is all user's set.For example, each of the disclosure is not being departed from In the case of the scope of kind embodiment, the first element is referred to alternatively as the second element, and similarly, the second element is also referred to as first Element.

It should be noted that：, can be by the first composition member if an element ' attach ' to another element by description Part is directly connected to the second element, and " connection " the 3rd can be formed between the first element and the second element Element.On the contrary, when an element " being directly connected to " is arrived into another element, it will be appreciated that be in the first element And second be not present the 3rd element between element.

The term used in the various embodiments of the disclosure is only used for describing the purpose of specific embodiment and not anticipated In the various embodiments of the limitation disclosure.As used herein, singulative is intended to also include plural form, unless context is clear Chu it is indicated otherwise.Unless otherwise defined, all terms (including the technical term and scientific terminology) tool being otherwise used herein There is the implication identical implication that the various embodiment one skilled in the art with the disclosure are generally understood that.The term (term such as limited in the dictionary typically used) is to be interpreted as having and the situational meaning in correlative technology field Identical implication and the implication with Utopian implication or overly formal will be not construed as, unless in the various of the disclosure It is clearly defined in embodiment.

Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is elaborated.

Embodiment

Also referring to Fig. 1 to Fig. 4, Fig. 1 to Fig. 4 together constitutes the overall structure signal of whole pipe feeding system 1 Figure.Pipe feeding system 1, it is mainly used in carrying out feeding to pipe mill 2.It includes storing lathe bed 10 and feeding lathe bed 20, also Including auxiliary feeding lathe bed 30 and core bar clamping device 40.Storing lathe bed 10 is to the feeding of feeding lathe bed 20.Feeding lathe bed 20 includes Push dolly 201.Auxiliary feeding lathe bed 30, which includes embracing, send dolly 301.Core bar clamping device 40 includes two core bar chucks 401, One core bar chuck 401 is located between storing lathe bed 10 and feeding lathe bed 20, and another core bar chuck 401 is located at feeding lathe bed 20 Between auxiliary feeding lathe bed 30.Pipe feeding system 1 also includes transmission mechanism, and transmission mechanism driving pushes dolly 201 and embraced Dolly 301 is sent to move.

Above-mentioned, storing lathe bed 10 is used for storing, and to the feeding of feeding lathe bed 20 by way of top is sent or pinched.Feeding bed The feeding by the way of push of body 20, auxiliary feeding lathe bed 30 is using feeding by the way of armful sending.By continuously embrace material feeding from And continuous feeding is realized, realize the continuous rolling for not shutting down feeding.

Specifically, storing lathe bed 10 includes the storing platform of bar shaped and the feeding clamping and conveying device 101 on storing platform. Feeding clamping and conveying device 101 includes the driver element that at least row's feeding pinch roll and each feeding pinch roll of driving rotate, its In, row's feeding pinch roll includes two feeding pinch rolls.The pinch direction of feeding pinch roll is towards feeding lathe bed 20.By feeding Pinch roll be set to two-by-two one come in, two feeding pinch rolls rotate backward or differential rotate can be so that be located therein pipe Base is driven to a direction.In the present embodiment, feeding clamping and conveying device 101 includes two row's feeding pinch rolls.Two row's feeding pinch rolls Transmission driving force to pipe is bigger, ensure that the validity of pipe feeding.Feeding pinch roll adds reductor by variable-frequency motor Driving, has different pinch speed.Clamped or unclamped by Driven by Hydraulic Cylinder, matched not by adjusting the stroke of hydraulic cylinder With the pipe of size.

In another embodiment, storing lathe bed 10 is provided with Lifting Device, and Lifting Device send pipe by pushing up in the axial direction Realize the feeding to pipe.

Multiple driven vollers 50 are additionally provided with the storing platform of storing lathe bed 10, driven voller 50 can turn around the axis of its own It is dynamic.Each driven voller 50 be arranged in parallel, and in the middle part of storing platform, the axis of each driven voller 50 is perpendicular to storing platform Bar shaped direction.Pipe is transmitted by multiple driven vollers 50, becomes sliding friction of the pipe with storing platform as rolling friction, So as to reduce the frictional resistance of pipe.Each driven voller 50 is the revolving body of closing waist shape, and the middle part of driven voller 50 is cancave cambered surface, is received Waist revolving body can realize the good location to pipe.

Be put into pipe in material clamping and conveying device 101 upwards, feeding pinch roll constantly by pipe from driven voller 50 to feeding Lathe bed 20 transmits.It should be noted that to ensure the continuity of feeding, the pipe on storing lathe bed 10 is continuous uninterrupted 's.

Also referring to Fig. 5 and Fig. 6, specifically, feeding lathe bed 20 includes the material loading platform of strip and put down located at feeding Push dolly 201 on platform.Push dolly 201 includes trolley body 2011, in addition to the push in trolley body 2011 Device 2012.

Pusher 2012, including hollow shaft 20121, in addition to claw 20122 and elastic pre-tightening mechanism 20123.Two Claw 20122 is oppositely arranged in hollow shaft 20121, or the circle distribution in hollow shaft 20121 of multiple claws 20122.It is each Claw 20122 carries the clamping face towards the axle center of hollow shaft 20121.Each claw 20122 is provided with an elastic pre-tightening mechanism 20123, elastic pre-tightening mechanism 20123 drives claw 20122 to gather.

Above-mentioned, hollow shaft 20121 is the cylinder of both ends open, is the cavity volume of pipe, when pipe is inserted into hollow shaft 20121 When middle, multiple claws 20122 are softened by pipe, are pushed pipe forward by the movement of hollow shaft 20121, and pass through elasticity The claw 20122 that pre-tightening mechanism 20123 drives can automatically adapt to various sizes of pipe by mechanical structure, be inserted in pipe It is fashionable directly to hold pipe tightly.

The clamping face of claw 20122 is that the contact surface of clamping face and pipe, i.e., claw 20122 is to pipe when pipe inserts Acting surface on base.

Specifically, when pipe is inserted into hollow shaft 20121, the head of pipe go to claw 20122 so that extend out to Pipe can be by, when the afterbody of pipe crosses claw 20122, claw 20122 in the presence of elastic pre-tightening mechanism 20123 again Collapse.

In the present embodiment, circle distribution has multiple claws 20122 in hollow shaft 20121, is specifically provided with three claws 20122.Three claws 20122 even circumferential in hollow shaft 20121 is distributed.It is appreciated that two claws being oppositely arranged Although 20122 effects are bad, can play a part of clamping core bar.

In the present embodiment, elastic pre-tightening mechanism 20123 is spring.Spring is a kind of common standard component, technology maturation and It is stable, there is excellent elastic characteristic, while there is the fatigue strength of million times, service life is higher.

It is appreciated that elastic pre-tightening mechanism 20123 can also be the flexible parts such as elastic or shell fragment.

Claw 20122 is gathered under normal conditions, elastic 20123 flexible pretightning force of pre-tightening mechanism.

Pretightning force on elastic pre-tightening mechanism 20123 causes claw 20122 to have certain clamping force to pipe all the time so that Pusher 2012 is more efficient to the clamping force of pipe and firm.

In the present embodiment, each one end of claw 20122 is rotationally connected with the outer surface of hollow shaft 20121, and the other end is provided with one The elastic pre-tightening mechanism 20123 of individual ring-type.Specifically, the end of claw 20122 carries a neck, an annular ring spring Being around in the neck of three claws 20122 will draw close three claws 20122.

In another embodiment, the end of each claw 20122 is provided with an elastic pre-tightening mechanism 20123, each elasticity Pre-tightening mechanism 20123 drives connected claw 20122 to gather to the axis of hollow shaft 20121 respectively.

In the present embodiment, pusher 2012 also includes axle sleeve 20124, and axle sleeve 20124 is coaxially sheathed on hollow shaft Outside 20121, hollow shaft 20121 can rotate in axle sleeve 20124.Specifically, axle sleeve 20124 is the cylinder of both ends open, it is empty Mandrel 20121 is located in axle sleeve 20124 by what bearing rotated.This pusher 2012 is fixed by axle sleeve 20124.

When pipe departs from claw 20122, hollow shaft 20121 does gyration, prepares pusher action next time, simultaneously The pipe transmission therein that rotatably to be clipped in of hollow shaft 20121 turns round tolerance to during other devices with preferable.

Push dolly 201 also includes pusher clamping and conveying device 2013.Pusher clamping and conveying device 2013 presss from both sides including at least row's pusher The driver element for sending roller and each pusher pinch roll of driving to rotate, wherein, row's pusher pinch roll includes two pushers and pinched Roller.Pusher pinch roll pinches direction and the diameter parallel of hollow shaft 20121.

Pusher clamping and conveying device 2013 is similar to the structure and principle of feeding clamping and conveying device 101, and the pusher of the present embodiment pinches Device 2013 includes row's pusher pinch roll.The pinch direction of pusher clamping and conveying device 2013 is by feeding lathe bed 20 to auxiliary feeding Lathe bed 30.

Transmission mechanism driving push dolly 201 moves on material loading platform.Transmission mechanism includes torque motor, variable-frequency electric Machine, reductor and driving-chain, torque motor and variable-frequency motor drive transmission chain movement by reductor respectively.Driving-chain and push Dolly 201 and embrace send dolly 301 to connect.Torque motor and variable-frequency motor alternating movement.

Torque motor has preferable mechanical property, has stable and powerful driving force, and variable-frequency motor has speed governing Effect, using the teaching of the invention it is possible to provide different rotating speeds.Variable-frequency motor works when specially pushing 201 fast forwarding and fast rewinding of dolly, when normal rolling pushes Torque motor works.

It is appreciated that transport mechanism can be with addition to it can use torque motor, variable-frequency motor as power set From hydraulic motor equal power device.

It should be noted that after pipe is by pusher 2012, push dolly 201 could perform feeding action, i.e., When pipe separates with claw 20122, transmission mechanism driving trolley body 2011 continues to move along.On the direction of reach, Pipe is sent to pusher clamping and conveying device 2013 by pusher 2012.

Multiple driven vollers 50 and core bar bracket 60 are additionally provided with the material loading platform of feeding lathe bed 20.Driven voller 50 is helped for support Pipe, core bar bracket 60 help core bar for support.Driven voller 50 on feeding lathe bed 20 and the phase of driven voller 50 on storing lathe bed 10 Together.Core bar bracket 60 includes two support rollers, the rotation axial direction of support roller and the diameter parallel of hollow shaft 20121.Multiple core bars Bracket 60 is between two core bar chucks 401.Core bar bracket 60 can radially float hollow shaft 20121.

Above-mentioned, core bar bracket 60 is used to lift core bar.Core bar bracket 60 includes two support rollers, and transfer roller can be around it Own axis.Two support rollers in supporting core rod, core bar between two support rollers, i.e., at the same with two support rollers It is tangent, so as to fixed.Core bar bracket 60 is connected on material loading platform by spring floating.

Because the diameter of pipe is more than the diameter of core bar, when being driven pipe, the core bar bracket 60 of floating is depressed by pipe, Now driven voller 50 and core bar bracket 60 are held in the palm simultaneously helps pipe.When being driven core bar, the decrement of core bar bracket 60 is smaller, now The support of core bar bracket 60 helps core bar.

Also referring to Fig. 7 and Fig. 8, core bar clamping device 40 is located at the both ends of feeding lathe bed 20, and it includes two core bars Chuck 401, core bar chuck 401 include hollow shaft 20121 and the claw 20122 being circumferentially distributed in hollow shaft 20121, also Including clamping drive division 4011, clamp drive division 4011 and drive each claw 20122 to gather or divide to the axis of hollow shaft 20121 Dissipate.Each claw 20122 carries the clamping face towards the axle center of hollow shaft 20121, and the clamping face of each claw 20122 is located all the time In on the same face of cylinder coaxial with hollow shaft 20121.The axis of the hollow shaft 20121 of each core bar chuck 401 is at one On straight line.

The core bar clamping device 40 of the present embodiment is mainly in pipe send machine system 1, for clamping core bar and to transmission Pipe is supported and positioned.Each core bar chuck 401 is mainly used in clamping core bar and being positioned, while passes through two cores The alternating clamping core bar and pipe of bar chuck 401, and transmission of the pipe in core bar chuck 401 is not hindered.

It should be noted that core bar clamping device 40 at work position keep fix, core bar in the normal operation of rolling, Do not move forward and backward, clamped simply by the alternating of two core bar chucks 401 to realize that pipe in transmittance process, enters to pipe Row is stepped down.Specifically, the bar footpath of core bar is small compared with the bar footpath of pipe, if the direction of transfer of pipe is from left to right, when pipe will transmit To the core bar chuck 401 in left side, now the core bar chuck 401 in left side unclamps core bar, and the core bar chuck 401 on right side presss from both sides core bar Tightly, the core bar chuck 401 in left side unclamp to pipe therefrom by, pipe from the core bar chuck 401 in left side by rear, left side Core bar chuck 401 core bar is clamped again, then the core bar chuck 401 on right side is opened to pipe and can passed through therefrom.

The axis of the hollow shaft 20121 of each core bar chuck 401 point-blank, ensure that multiple core bar chucks 401 can be to same core bar clamping, and advantageously ensure that transmission when being transmitted between multiple core bar chucks 401 is coaxial simultaneously Degree.

Core bar clamping device 40 also includes pinch mechanism 402.Pinch mechanism 402 is at core bar chuck 401 and not Between two core bar chucks 401.Pinch mechanism 402 includes at least row's pinch roll and drives what each pinch roll rotated Driver element, wherein, row's pinch roll includes two pinch rolls.The pinch direction of pinch roll and the axis of hollow shaft 20121 are put down OK.The clamping and conveying device of the present embodiment includes row's pinch roll.

Above-mentioned, pinch mechanism 402 is located at tail end of the pipe in the direction of transfer of core bar clamping device 40, i.e. pinch mechanism 402 located at the side of the core bar chuck 401 on right side.I.e. core bar first passes through two core bar chucks 401, after pass through pinch mechanism 402. Pinch mechanism 402 does not work during normal production tube rolling, and due to the pin head mounted in core bar front end, (special material is made, resistance to height Temperature, it is unlikely to deform) belong to tool and mould, surface quality often need to be checked with a period of time, is changed if necessary, therefore is equipped with pinch mechanism 402, can be that moving forward and backward for core bar provides driving force, easy access and maintenance.

Core bar clamping device 40 also includes nitrogen charging mechanism 403, and pinch mechanism 402 is located at one end of core bar clamping device 40, Nitrogen charging mechanism 403 is located at the other end of core bar clamping device 40.Specifically, on the direction of transfer of core bar clamping device 40, core Bar line passes through nitrogen charging mechanism 403, then by two core bar chucks 401, finally by pinch mechanism 402 to driving front.

Nitrogen charging mechanism 403 includes nitrogen charging head, and the axis of nitrogen charging head and the axis of hollow shaft 20121 are point-blank.

Due to high temperature can be produced in the operation of rolling, in order to ensure the quality of production tube, it is necessary to which topping up is protected.Add If nitrogen charging mechanism 403 is filled with nitrogen to hollow core bar inner chamber, nitrogen is again from the pipe rolled close to the injection of core bar position Inner chamber, to reduce the oxidation of inner surface of tube body.Nitrogen charging head ensure that nitrogen charging head can accurately with being coaxially disposed for hollow shaft 20121 To core bar inner chamber nitrogen charging.

Core bar chuck 401 also includes linkage portion 4012, clamps drive division 4011 and drives claw 20122 by linkage portion 4012 Gather or disperse.

Clamp drive division 4011 drives multiple claws 20122 to gather or disperse by a linkage portion 4012, can cause The action synchronism and uniformity of multiple claws 20122 are more preferable, meet that the clamping face of multiple claws 20122 is in same post all the time On face, and the usage quantity for clamping drive division 4011 can be reduced, simplify structure.

It is appreciated that the claw 20122 of multiple circle distributions is pressed from both sides by diametrically gathering or disperseing to pipe Tightly, it can realize and the core bar of all sizes in the moving range of claw 20122 is clamped.The quantity of claw 20122 At least three, to realize the comprehensive reliable clamping to core bar.In the present embodiment, the quantity of claw 20122 is 3, The quantity of claw 20122 is more, and the cylindricity of the circle distribution of multiple claws 20122 is more difficult to ensure, thus is ensureing to core bar Comprehensive clamping while, the required precision of 3 claws 20122 is relatively low.

Further, it is to strengthen claw 20122 to the clamping effect of core bar, prevents core bar from being skidded on clamping face, claw 20122 clamping face is provided with non-slip texture, and non-slip texture is the asperities on clamping face.

In the present embodiment, clamping drive division 4011 is straight-line motion mechanism.Linkage portion 4012 is the tapered sleeve with taper hole, card The opposite in tight face is the inclined-plane to match with the cone angle of the taper hole of linkage portion 4012.Linkage portion 4012 is sheathed on outside claw 20122, The driving of drive division 4011 is clamped in linkage portion 4012 and clamps the direction of motion of drive division 4011 and the axle of linkage portion 4012 Line direction is parallel.

Above-mentioned, tapered sleeve is coordinated with claw 20122 by inclined-plane, and claw 20122 slides in hollow shaft 20121, so as to empty Mandrel 20121 fixes the axial location of claw 20122.Drive division 4011 is clamped by driving linkage portion 4012 in hollow shaft 20121 axial movement, so as to become linkage portion 4012 axial movement into claw 20122 moving radially in hollow shaft 20121, So that multiple claws 20122 are gathered or disperseed, so as to reach the mesh for driving multiple parts to be synchronized with the movement by a part 's.

In the present embodiment, core bar chuck 401 also includes swing arm 4013, and the one end of swing arm 4013, which rotates, to be fixed, the other end and folder Tight drive division 4011 is rotatablely connected.Clamp drive division 4011 and linkage portion 4012 is driven in the axle of linkage portion 4012 by swing arm 4013 To movement.

Swing arm 4013 is driven to swing by clamping drive division 4011 so as to clamp drive of the drive division 4011 to linkage portion 4012 Power is more balanced, in the absence of the generation for the stuck situation for causing linkage portion 4012 because of discontinuity equalization.

Specifically, core bar chuck 401 also includes axle sleeve 20124, axle sleeve 20124 is sheathed on outside linkage portion 4012, linkage Portion 4012 can rotate in axle sleeve 20124.Sliding block is installed with swing arm 4013, the outer surface of axle sleeve 20124 is provided with chute, sliding Block is embedded in chute.Chute is the waist type groove parallel to the radial direction of the axle sleeve 20124.

Above-mentioned, swing arm 4013 is embedded on axle sleeve 20124 by sliding block thereon, and passes through the chute on axle sleeve 20124 It is connected with sliding block, drives axle sleeve 20124 and linkage portion 4012 to move axially by sliding block.Because swing arm 4013 is when swinging, Gu Sliding block in swing arm 4013 axle sleeve 20124 axially and radially on change in location, axle sleeve 20124 and linkage can occur The position of portion 4012 diametrically is constant, thus adds waist type groove radially on axle sleeve 20124, so as to allow linkage portion 4012 when moving axially, the change of radial position.Meet the only position in the axial direction of axle sleeve 20124 when swinging of swing arm 4013 Change.

It is appreciated that clamping, drive division 4011 is variable for position with the tie point of swing arm 4013, i.e., swing arm 4013 is with clamping The distance between the tie point of drive division 4011 and the fixing point of swing arm 4013 are variable, to adapt to swing arm 4013 when swinging, footpath To the timing of spacing one, the change of the length of swing arm 4013.

Specifically, sliding block is the boss in swing arm 4013, chute is that the kidney-shaped located at the surface of axle sleeve 20124 is recessed Groove, the height of the depth of chute more preferably greater than boss.

It is appreciated that linkage portion 4012 can also be directly driven in the axial direction of hollow shaft 20121 by clamping drive division 4011 It is mobile.

In the present embodiment, clamping drive division 4011 is linear oil cylinder.

Linear hydraulic cylinder has preferable stroke adjustment characteristic, and small volume, driving force is big, and small in work noise.

It is appreciated that the movement travel for clamping drive division 4011 determines that claw 20122 moves in the axial direction of hollow shaft 20121 Momentum, the linear oil cylinder of different strokes is selected according to the diameter for the core bar that need to embrace folder, or set according to the diameter for the core bar for embracing folder The movement travel of straight-line motion mechanism.

In other examples, clamp drive division 4011 and can also be linear electric motors, straight line cylinder, ball-screw machine Structure, cam mechanism, pinion and rack isoline motion.

Core bar chuck 401 also includes chuck body 4014, and hollow shaft 20121 and clamping drive division 4011 are located at chuck sheet On body 4014.Hollow shaft 20121 can rotate in chuck body 4014 relative to the axis of hollow shaft 20121.

Core bar chuck 401 is mainly used in clamping and conveying core bar, and when core bar departs from claw 20122, hollow shaft 20121 is done Gyration, prepare next time feeding action, while hollow shaft 20121 rotatably cause be clipped in core bar therein to There is preferably revolution tolerance during the transition of other devices.

Specifically, hollow shaft 20121 is connected with chuck body 4014 by bearing, axle sleeve 20124 and linkage portion 4012 it Between connected by bearing.The position of chuck body 4014 is fixed, and the cylinder body of linear oil cylinder is fixed in chuck body 4014, straight line The piston rod of oil cylinder is connected to one end of swing arm 4013, and the other end of swing arm 4013 is fixed in chuck body 4014, so that Hollow shaft 20121 is obtained together to rotate together with claw 20122, linkage portion 4012.

Core bar chuck 401 in the present embodiment also includes traversing drive division 4015.Traversing drive division 4015 is linear motion Mechanism, traversing drive division 4015 drive axial movement of the hollow shaft 20121 along hollow shaft 20121 by chuck body 4014.

Traversing drive division 4015 drives chuck body 4014 to move so that core bar chuck 401 is with the same of clamping effect When, also with so that effect of 401 core bar therein of core bar chuck with movement.Traversing drive division 4015 causes core bar chuck 401 have the function of nose balance：In the case where main frame normally rolls, two when core bar clamping device 40 performs feeding operation Mandrel chuck need to carry out the similar action for exchanging hand, the front end core bar chuck 401 and rear end core bar chuck 401 on direction of transfer This section of core bar can switch between tight and free two states of centerline direction of transmission, and the claw 20122 of mandrel chuck is in core Relative position on bar can produce change, by the compensation of chuck position to ensure to be accurately positioned core bar.

Traversing drive division 4015 causes core bar chuck 401 to have urgent core-pulling function.When vexed car situation occurs for tube rolling main frame When needing to shut down, traversing drive division 4015 by driving the movement of chuck body 4014, so as to by core bar before being deformed by core bar Contact in rolling quickly is detached, prevents core bar and pipe locking.

Having added the core bar chuck 401 of traversing drive division 4015 also has the function of secondary feeding.Carry out rolling for first pipe When processed, in pipe before roll, core bar is first installed in the position for having a segment distance with roll, when pipe is admitted to main frame and connects Core bar is delivered in the position normally rolled by traversing drive division 4015 again after host-initiated during nearly roll, to prevent roll and core Rod, which strikes to touch, causes mould to damage.

In the present embodiment, traversing drive division 4015 is linear oil cylinder.The cylinder body position of linear oil cylinder is fixed, piston rod connection In chuck body 4014.

Linear hydraulic cylinder has preferable stroke adjustment characteristic, and small volume, driving force is big, and small in work noise.

In other examples, traversing drive division 4015 can also be linear electric motors, straight line cylinder, ball-screw machine Structure, cam mechanism, pinion and rack isoline motion.

Auxiliary feeding lathe bed 30 includes auxiliary feeding platform and embracing on auxiliary feeding platform send dolly 301, is driven Mechanism driving, which is embraced, send dolly 301 to be moved on auxiliary feeding platform.Embrace and send dolly 301 to include trolley body 2011 and located at small Core bar chuck 401 on car body 2011.

Transmission mechanism as described above, the driving-chain of transmission mechanism simultaneously with push dolly 201 trolley body 2011 and Embracing send the trolley body 2011 of dolly 301 to connect, while drives push dolly 201 and embrace and send dolly 301 to move so that feeding bed The feeding action consistency of body 20 and auxiliary feeding lathe bed 30 is more preferable.

Specifically, two sprocket wheels are respectively arranged on the both ends of the workbench of pipe feeding system 1, push dolly 201 and embrace Dolly 301 and some core bar brackets 60 is sent to be fixedly connected with driving-chain.

In the present embodiment, pipe feeding system 1 also includes pipe seam detecting device 70, and pipe seam detecting device 70 is sent located at pipe Enter the afterbody of system 1, i.e., between auxiliary feeding lathe bed 30 and pipe mill 2, for detecting the release of pipe feeding system 1 Gap between pipe.

Specifically, pipe seam detecting device 70 is used to detect the position signalling at two pipe headtotails.

The workflow of pipe feeding system 1 is as follows：

1. line justification pipe mill 2, core bar, pipe etc. are performed before feeding action in place, when storing lathe bed 10 detects When not having pipe on driven voller 50, feeding device (not shown), which starts, pulls out pipe on driven voller 50, then starts Pipe is delivered to feeding lathe bed 20 by feeding clamping and conveying device 101.

2. after the clamping of core bar chuck 401 for confirming rear end, the core bar chuck 401 of front end is opened and moves to axially adjustable position, Pipe center is left by nitrogen charging mechanism 403, and feeding clamping and conveying device 101 is constantly to the feeding of feeding lathe bed 20, when pipe tail end Start driving pipe by the pusher clamping and conveying device 2013 pushed after feeding clamping and conveying device 101 on dolly 201 to continue to move along.

3. after pipe tail end has passed through the core bar chuck 401 of front end, the core bar chuck 401 of front end is again by core bar card Tightly, axial location returns to normal work position, and nitrogen charging mechanism 403 returns to working position, holds out against core bar afterbody and starts nitrogen charging.

4. when pipe tail end has passed through the claw 20122 on push dolly 201, the feeding of pusher clamping and conveying device 2013 pinches dress The pinch roll put unclamps, and after the clamping core bar of core bar chuck 401 for confirming front end, the core bar chuck 401 of rear end unclamps core bar.

5. push dolly 201 performs fast forward action by variable-frequency motor, as head and rolling previous of pipe When the afterbody of pipe is close, push dolly 201 performs normal push by torque motor and acted.Embracing send dolly 301 to unclamp simultaneously Return to initial position.

6. if storing lathe bed 10 does not detect pipe (no material, current pipe are last root), push dolly 201 moves To ad-hoc location, stop push, core bar chuck 401 performs quick core pulling action, and pipe mill 2 is stopped.If storing bed Body 10 has detected pipe, then continues executing with next step.

7. when push dolly 201 moves to the after limit position of main feeding lathe bed 20, dolly is sent to embracing by pipe is hand-off 301, embrace and send dolly 301 to continue to have in arms pipe transmission to pipe mill 2, push the preceding limit that dolly 201 retreats to feeding lathe bed 20 Position.

8. after armful sending dolly 301 to embrace the core bar chuck 401 that the tail end for sending pipe until pipe passes through rear end, the core bar of rear end The clamping core bar of chuck 401, the operation of the 2nd step is performed, circulates continuous rolling successively.

In all examples being illustrated and described herein, any occurrence should be construed as merely exemplary, without It is that therefore, other examples of exemplary embodiment can have different values as limitation.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.

Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed, But therefore it can not be interpreted as the limitation to the scope of the utility model.It should be pointed out that the ordinary skill for this area For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this The protection domain of utility model.

Claims (10)

1. pipe feeding system, including storing lathe bed and feeding lathe bed, it is characterised in that also including auxiliary feeding lathe bed and core bar Clamping device；

The storing lathe bed is to the feeding lathe bed liftout or pinches feeding；

The feeding lathe bed includes push dolly；

The auxiliary feeding lathe bed, which includes embracing, send dolly；

The core bar clamping device includes two core bar chucks, and a core bar chuck is located at the storing lathe bed and described send Between expecting lathe bed, another described core bar chuck is located between the feeding lathe bed and the auxiliary feeding lathe bed；

The pipe feeding system also includes transmission mechanism, and the transmission mechanism driving push dolly and described armful send dolly It is mobile.

2. pipe feeding system according to claim 1, it is characterised in that the storing lathe bed includes feeding clamping and conveying device Or material jacking mechanism；

The feeding clamping and conveying device includes the drive that at least row's feeding pinch roll and each feeding pinch roll of driving rotate Moving cell, wherein, the row feeding pinch roll includes two feeding pinch rolls；

The pinch direction of the feeding pinch roll is towards the push dolly.

3. pipe feeding system according to claim 1, it is characterised in that the push dolly includes trolley body, also Including the material-pulling device in the trolley body；

The material-pulling device, including hollow shaft, claw and elastic pre-tightening mechanism, two claws are relative in the hollow shaft Set, or multiple claws circle distribution in the hollow shaft；

Each claw carries the clamping face towards the axle center of the hollow shaft；

Each claw is provided with an elastic pre-tightening mechanism, and the elastic pre-tightening mechanism drives the claw to gather.

4. pipe feeding system according to claim 3, it is characterised in that the push dolly also includes pusher and pinches dress Put；

The pusher clamping and conveying device includes the drive that at least row's pusher pinch roll and each pusher pinch roll of driving rotate Moving cell, wherein, the row pusher pinch roll includes two pusher pinch rolls；

The pusher pinch roll pinches direction and the diameter parallel of the hollow shaft.

5. pipe feeding system according to claim 1, it is characterised in that the core bar chuck include hollow shaft and The claw being circumferentially distributed in the hollow shaft, in addition to clamp drive division and axle sleeve；

Each claw carries the clamping face towards the axle center of the hollow shaft；

The clamping drive division drives the claw to gather or separate towards the axis of the hollow shaft, and the axle sleeve is sheathed on institute State outside hollow shaft and the hollow shaft can rotate in the axle sleeve.

6. pipe feeding system according to claim 5, it is characterised in that also including linkage portion and swing arm；

The clamping drive division is straight-line motion mechanism；

The linkage portion is the tapered sleeve with taper hole, and the opposite in the clamping face is the taper to match with the taper hole of the linkage portion Cambered surface；

The axle sleeve is coaxially sheathed on outside the linkage portion, and the linkage portion can rotate in the axle sleeve, the linkage Portion is sheathed on outside the claw；

Described swing arm one end, which rotates, to be fixed, the other end and the clamping drive division rotation connection.

7. the pipe feeding system according to claim 5 or 6, it is characterised in that described armful is sent dolly to include trolley body And the described core bar chuck in the trolley body.

8. pipe feeding system according to claim 1, it is characterised in that the core bar clamping device also includes pinch machine Structure, between core bar chuck described in the pinch mechanism and the auxiliary feeding lathe bed；

The pinch mechanism includes the driving list that at least row's core pulling pinch roll and each core pulling pinch roll of driving rotate Member, wherein, the row core pulling pinch roll includes two core pulling pinch rolls；

The pinch direction of the core pulling pinch roll is towards the core bar chuck.

9. pipe feeding system according to claim 1, it is characterised in that the transmission mechanism includes torque motor, become Frequency motor, reductor and driving-chain, the torque motor and the variable-frequency motor drive the biography by the reductor respectively Dynamic chain movement；

The driving-chain send dolly to be connected with the push dolly and described armful；

The torque motor and the variable-frequency motor alternating movement.

10. pipe feeding system according to claim 1, it is characterised in that also including pipe seam detecting device, the pipe seam Detection means is located at the afterbody of the pipe feeding system, the seam between the pipe released for detecting the pipe feeding system Gap.