CN217858226U

CN217858226U - Multi-station pipeline slot rolling equipment

Info

Publication number: CN217858226U
Application number: CN202221902468.6U
Authority: CN
Inventors: 杨岩顺; 张文仁
Original assignee: Zhejiang Victaulic Tuwei Piping Equipment Co ltd
Current assignee: Zhejiang Victaulic Tuwei Piping Equipment Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-11-22
Anticipated expiration: 2032-07-22

Abstract

The utility model relates to a multi-station pipeline slot rolling device, which comprises a feeding mechanism, a first slot rolling unit, a second slot rolling unit and a discharging mechanism which are arranged in sequence at equal intervals, and also comprises a movable trolley which is used for sequentially conveying pipelines on a pipeline conveying path among the feeding mechanism, the first slot rolling unit, the second slot rolling unit and the discharging mechanism; the first channeling unit is arranged on the first track, the second channeling unit is arranged on the second track, and the first channeling unit and the second channeling unit are sequentially arranged on two sides of the pipeline conveying path in parallel; the feeding mechanism also comprises a correcting device; the utility model provides a current multistation pipeline hobbing machine precision poor, the removal pipeline route is complicated, rely on the manual work to carry out the defect of material loading arrangement, it has solved material loading stage pipeline position correction problem, and the removal route that the change of travelling car structure made is simple to the processing pipeline fineness is high.

Description

Multi-station pipeline slot rolling equipment

Technical Field

The utility model relates to a pipeline processing equipment technical field, especially a multistation pipeline slot rolling equipment.

Background

The rolling of the grooves on the pipes is done by a rolling machine in order to facilitate the connection between the pipes. The exclusive use of channelling machine among the prior art relies on the manual work all to carry out the slot rolling processing at the both ends of steel pipe usually, and the length and the quality of steel pipe all can be difficult to accurately because of the steel pipe removes and carries out the slot rolling processing to its other end.

The multi-station slot rolling equipment can process a plurality of pipelines at one time, can realize automation, greatly improves the processing efficiency and saves the labor cost.

Chinese utility model patent CN211707813U discloses a "steel pipe on-line grooving apparatus", which comprises transfer frames for feeding and discharging steel pipes at the upstream and downstream ends; the movable trolley can move to and fro between the two transfer frames to transfer the steel pipes; the two rolling groove units are sequentially arranged between the two middle rotating frames along the upstream direction and the downstream direction and are distributed left and right, and the bottom of each rolling groove unit is provided with a walking device which can move vertical to the upstream direction and the downstream direction; the rolling groove brackets are arranged between the movable trolley and the rolling groove unit in parallel at intervals; and the movable trolley, the rolling groove unit and the rolling groove support are provided with position sensors which interact with each other.

The equipment realizes the circular transportation of the processing pipelines by utilizing the reciprocating operation of the movable trolley, thereby solving the problem of the simultaneous circular processing of a plurality of pipelines, but the structure has the following defects:

1. when a large number of pipelines are unbound to the feeding device, the pipelines are scattered and easy to fall off, and manual arrangement is not needed.

2. The pipe running phenomenon often happens to the pipeline rolling groove, so that the rolling groove precision is influenced, and the utility model discloses a solution is not given.

3. The number of the first brackets on the movable trolley is twice of that of the processing pipelines, so that the walking path of the movable trolley is too complex and is easy to disorder.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multistation pipeline slot rolling equipment mainly solves the defect that current multistation pipeline slot rolling equipment precision is poor, the removal pipeline route is complicated, rely on the manual work to carry out the material loading arrangement, and it has solved material loading stage pipeline position correction problem, and the removal route that the change of travelling car structure made is simple to the processing pipeline fineness is high.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a multi-station pipeline channeling device comprises a feeding mechanism, a first channeling unit, a second channeling unit and a discharging mechanism, wherein the feeding mechanism is used for sequentially arranging a plurality of pipelines at equal intervals, the first channeling unit is used for simultaneously performing channeling processing on one ends of the plurality of pipelines at a first channeling station, the second channeling unit is used for simultaneously performing channeling processing on the other ends of the plurality of pipelines after the first channeling station is processed at a second channeling station, the discharging mechanism is used for discharging the pipelines after the channeling processing on two ends, and the device also comprises a movable trolley which is used for sequentially conveying the pipelines on a pipeline conveying path among the feeding mechanism, the first channeling unit, the second channeling unit and the discharging mechanism; the first rolling groove unit is arranged on the first track, the second rolling groove unit is arranged on the second track, and the first rolling groove unit and the second rolling groove unit are sequentially arranged on two sides of the pipeline conveying path in parallel; pipeline lifting devices for lifting the pipeline to a first rolling groove station and a second rolling groove station are arranged on the outer side of the movable trolley and on two sides of the pipeline conveying path;

the feeding mechanism comprises a material placing frame, a material shifting piece, a correcting device and a material moving device which are sequentially arranged on two sides of a pipeline conveying path, wherein at least one material shifting piece and one correcting device are arranged on two sides of the pipeline conveying path at the tail of the material placing frame; each correcting device comprises a supporting frame, a connecting seat and a corrector, wherein the corrector is arranged on the connecting seat, and the connecting seat is arranged on the supporting frame;

the material moving device comprises material moving platforms, conveying parts and a plurality of material moving frames, wherein the material moving platforms are arranged on two sides of a pipeline conveying path and between a material placing frame and a first rolling groove unit respectively, the conveying parts rotate around the material moving platforms in a circulating mode, the material moving frames are arranged on the conveying parts at equal intervals, and the material moving frames which are equal to the number of pipelines machined by each rolling groove unit are at least kept on the upper surfaces of the material moving platforms when the conveying parts rotate every time.

All be provided with the pipeline lifting device on first channeling machine group line and second channeling machine group line, every pipeline lifting device includes that two symmetries set up in pipeline transport route both sides, have the trusteeship platform of lift part, and every trusteeship platform top sets up a plurality of equidistant spaced support work or material rest, and the support work or material rest quantity at every trusteeship platform top equals with every channeling machine group processing pipeline quantity.

Each material supporting frame is arranged on a sliding rail at the top of the material supporting platform, each material supporting frame is connected with an elastic part, the elastic parts push the material supporting frames towards the direction of the rolling groove unit, and the material supporting frames are provided with rolling parts.

The material supporting frame is V-shaped, rolling parts arranged on the material supporting frame are rolling wheels, and the elastic part is a compression gas spring.

The lifting component of the supporting pipe platform is an electric cylinder.

The movable trolley comprises a base, a lifting platform and a plurality of pipe conveying brackets which are arranged above the lifting platform at intervals, wherein the number of the pipe conveying brackets is three times that of the processing pipelines of each rolling groove unit.

The pipeline conveying path is provided with a track, a base of the movable trolley is connected with the track in a sliding mode, and the movable trolley slides back and forth between the feeding mechanism and the discharging mechanism through the track.

The tail end of the material placing frame is provided with a convex material blocking piece; the kick-out piece comprises a lifting support and a kick-out device arranged at the top end of the lifting support, the kick-out device sequentially comprises a protrusion with an upward starting end, an inclined plane connected with the protrusion and a concave part with a tail end connected with the inclined plane, and the concave part is aligned with a material moving frame which is closest to the material placing frame on the material moving platform.

The corrector comprises a cylinder and a top plate connected with the cylinder.

The support frame of the correcting device is provided with a plurality of connecting seat mounting positions.

The utility model has the advantages that:

1. a correction device is arranged at the tail part of the material placing frame, so that the disordered pipelines are corrected before being transferred to the next stage, and the processing precision is improved in the whole process;

2. the design of the material supporting frame, the sliding rail and the elastic piece of the pipeline lifting device eliminates the pipe running phenomenon of the pipeline during the groove rolling, and further ensures the accuracy of the groove rolling;

3. three groups of pipe conveying brackets with the same number as the number of the processing pipelines are arranged on the movable trolley, so that the movable trolley only needs to move one position on a conveying path to realize the continuous processing of a plurality of pipelines.

Drawings

Fig. 1 is the structural schematic diagram of the multi-station pipeline channeling equipment of the utility model.

Fig. 2 is a schematic diagram of a single-side structure of the feeding mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the correction device of the present invention.

Fig. 4 is a schematic structural view of the movable trolley of the utility model.

Fig. 5 is a schematic view of the structure of the material stirring member of the present invention.

Fig. 6 is a schematic view of the pipe lifting device of the present invention.

In the figure: 1-a feeding mechanism; 11-a material placing frame; 12-pipe puller; 121-projection; 122-a bevel; 123-a recess; 13-a correction device; 131-a support frame; 132-a connection seat; 133-a corrector; 1331-top plate; 1332-a cylinder; 14-a material moving device; 141-a material moving platform; 142-a conveyor; 143-a material moving rack; 15-a material blocking member; 2-a first channeling unit; 21-a first channelling station; 3-a second channeling unit; 31-a second channelling station; 4-a pipeline lifting device; 41-a hosting platform; 42-a material supporting frame; 43-a slide rail; 44-an elastic member; 45-electric cylinder; 5, moving the trolley; 51-a base; 52-a lifting platform; 53-carrier pipe bracket; 6-a discharging mechanism.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings. The drawings are for illustrative purposes only and are not to be construed as limiting the patent.

In order to explain the embodiment more simply, some parts known to those skilled in the art in the drawings or in the description, but not relevant to the main content of the present invention, will be omitted. In addition, some components in the drawings may be omitted, enlarged or reduced for convenience of description, but do not represent the size or the entire structure of an actual product.

The utility model discloses a multistation pipeline channelling equipment, as shown in figure 1, it includes feed mechanism 1 that arranges many pipelines in proper order at equidistance interval, carry out the first channelling unit 2 that the channelling was processed simultaneously at first channelling station 21 with many pipeline one ends, carry out the second channelling unit 3 that the channelling was processed simultaneously at second channelling station 31 with many pipeline other ends after the first channelling station was processed (the pipeline quantity that first channelling unit 2 and second channelling unit 3 processed must be unanimous), unload the discharge mechanism 6 that unloads the pipeline behind the channelling at both ends, still include the pipeline at feed mechanism 1, first channelling unit 2, second channelling unit 3, the removal dolly 5 that transports in proper order on the pipeline transport route between discharge mechanism 6; the first channeling unit 2 is arranged on the first track, the second channeling unit 3 is arranged on the second track, and the first channeling unit 2 and the second channeling unit 3 are sequentially arranged on two sides of the pipeline conveying path in parallel; the pipeline lifting device 4 is arranged on the outer side of the movable trolley 5 and on two sides of a pipeline conveying path (namely the inner side between the first rolling groove unit 2 and the second rolling groove unit 3) and used for lifting a pipeline to the first rolling groove station 21 and the second rolling groove station 31; the first channeling unit 2, the second channeling unit 3, the movable trolley 5 and the pipeline lifting device 4 are provided with position sensors which interact with each other; the position sensor can be one or more of infrared sensors, laser ranging sensors, encoders, magnetic brush displacement sensors and the like with position and distance detection capability, the position sensors are jointly connected to a PLC (programmable logic controller) main control console, the PLC main control console controls the groove pressing operation to be performed and accurately controlled to provide parameters, and the running position of the equipment in the working process is detected by the position sensors and is controlled.

As shown in fig. 1 and 2, the feeding mechanism 1 includes a material placing rack 11, a pipe poking piece, a correcting device 13 and a material moving device 14 which are sequentially arranged on two sides of a pipeline conveying path, wherein the material poking piece and the correcting device 13 are symmetrically arranged on two sides of the pipeline conveying path at the tail of the material placing rack 11;

as shown in fig. 1, the material moving device 14 includes material moving platforms 141 respectively disposed at both sides of the pipeline conveying path between the material placing rack 11 and the first rolling slot machine set 2, a conveying member 142 circularly rotating around the material moving platforms, the conveying member 142 being driven by a driving motor, and a plurality of material moving racks 143 disposed on the conveying member 142 at equal intervals, wherein the material moving racks 143 equal to the number of the processing pipelines of each rolling slot machine set are at least (equal to or more than) maintained on the upper surface of the material moving platform 141 by the conveying member 142 each time of rotating.

As shown in fig. 2, the end of the material placing rack 11 is provided with a convex material blocking member 15; the material poking part is arranged at the tail part of the material placing frame 11 and comprises a lifting support and a material poking device 12 arranged at the top end of the lifting support, as shown in fig. 5, the material poking device 12 sequentially comprises a protrusion 121 with an upward starting end, an inclined plane 122 connected with the protrusion, and a concave part 123 with a tail end connected with the inclined plane, and the concave part 123 is aligned with the material moving frame 143, which is closest to the material placing frame 11, on the material moving platform 141.

As shown in fig. 3, the calibration device 13 includes a support frame 131, a connecting seat 132 and a calibrator 133, the calibrator 133 is disposed on the connecting seat 132, and the connecting seat 132 is disposed on the support frame 131; preferably, the corrector 133 includes a cylinder 1332 and a top plate 1331 connected thereto.

When the pipeline rolls to the end of the material placing rack 11 and is blocked by the material blocking piece 15, the air cylinders 1332 of the correctors 133 on both sides of the pipeline (both sides of the tail of the material placing rack 11) push the respective top plates 1331 simultaneously from both sides to the middle, so as to correct the pipeline in the middle position.

Further, in order to meet the requirements of pipes with different lengths, the supporting frame 131 of the calibration device 13 is provided with a plurality of mounting positions for the connecting seats 132, and the connecting seats 132 can be mounted at suitable mounting positions according to the length of the processed pipe.

After the calibration is completed, as shown in fig. 2, the material-shifting members on both sides are lifted, the protrusion 121 of the material-shifting device 12 shifts out a pipe, the pipe rolls along the inclined plane 122 into the concave portion 123 at the end of the material-shifting device 12, and then the material-shifting members fall back, because the concave portion 123 is aligned with the material-shifting rack 143 on the material-shifting platform 141 closest to the material-placing rack 11, the pipe is shifted to the material-shifting rack 143 at the outermost end of the material-shifting device 14; then the conveyor belt 142 rotates, the pipeline is moved to a position on the material moving platform 141, the outermost position is vacated, and the next pipeline is received; in this way, the pipes on the material rack 11 are aligned one by the aligning device 13, and then the material-shifting member is lifted and transferred to the material-transferring device 14, and is sequentially transferred to the material-transferring platform 141.

As shown in fig. 1 and 4, the movable trolley 5 includes a base 51, a lifting platform 52 and a plurality of pipe conveying brackets 53 disposed above the lifting platform at equal intervals, and the number of the pipe conveying brackets 53 is three times that of the pipes processed by each rolling slot machine set.

In order to facilitate the movement of the travelling bogie 5 on the pipeline conveying path, a rail is arranged on the pipeline conveying path, a base 51 of the travelling bogie 5 is connected with the rail in a sliding manner, and the travelling bogie 5 slides back and forth between the loading mechanism 1 and the unloading mechanism 6 through the rail.

As shown in fig. 1 and 6, the pipeline lifting devices 4 are arranged on the extension line of the first channeling unit 2 and the extension line of the second channeling unit 3, each pipeline lifting device 4 comprises two pipe supporting platforms 41 which are symmetrically arranged on two sides of a pipeline conveying path and provided with lifting components, a plurality of material supporting frames 42 are arranged at the top of each pipe supporting platform 41 at intervals, and the number of the material supporting frames 42 at the top of each pipe supporting platform 41 is equal to the number of the processing pipelines of each channeling unit.

Since the pipe running phenomenon occurs during the pipe channeling process, that is, the pipe moves backward in the axial direction during the radial rotation, in order to prevent the pipe running phenomenon, preferably, as shown in fig. 6, each material support frame 42 is disposed on a slide rail 43 at the top of the material support platform 41, each material support frame 42 is connected to an elastic member 44, and the elastic member 44 pushes the material support frame 42 toward the channeling machine set, so as to always apply an elastic force toward the channeling machine set to the pipe erected on the material support frame 42.

Further, for better erectting the pipeline, the material supporting frame 42 is in a V shape, the material supporting frame 42 is provided with rolling parts, preferably, the rolling parts arranged on the material supporting frame are rolling wheels, when the pipeline is subjected to channeling processing, the rolling wheels can rotate along with the radial rotation of the pipeline so as to reduce the friction of the radial rotation of the pipeline, however, the rolling wheels have larger friction force on the axial movement of the pipeline, and the elastic parts 44 always apply elastic force to the material supporting frame 42 towards the channeling machine, so that the phenomenon that the pipeline retreats along the axial direction during channeling is eliminated, namely, the pipe running phenomenon during channeling of the pipeline is prevented. Preferably, the elastic member 44 is a compression gas spring, and a YQ type compression gas spring may be used.

In order to keep the pipeline lifting device 4 stable and fine, an electric cylinder is used as a lifting component of the supporting pipe platform 41.

Take five pipelines of simultaneous processing as an example below, express the utility model discloses the work flow of equipment:

1. the pipelines roll from the front end to the tail end of the material placing rack 11 and are blocked by the material blocking piece 15, and the air cylinders 1332 of the two-end corrector 133 push the respective top plates 1331 to correct one pipeline at the middle position; the pipe pusher 12 is lifted, a pipe is transferred to the material transfer rack 143 on the material transfer platform 141, which is closest to the material placing rack 11, then the conveyor belt 142 rotates, the pipe is moved to a position on the material transfer platform 141, the outermost position is left, and the next pipe is received; in this way, the pipelines on the material placing rack 11 are sequentially transferred to the material transferring platform 141 in a way that one pipeline is corrected by the correcting device 13, and then the material shifting piece ascends and is transferred to the material transferring device 14; at least five pipes are maintained on the upper surface of the material moving platform 141 by the rotating of the conveying element 142, and of course, more than five pipes can be provided.

2. Fifteen pipe conveying brackets 53 are arranged on the movable trolley 5, and are divided into three groups with equal number for convenience of expression, wherein the three groups are a first group, a second group and a third group in sequence from the feeding mechanism 1 to the discharging mechanism 6;

the initial position of the travelling car 5 is such that the first set of pipe carriers 53 is aligned with the last five transfer racks 143 of the transfer platform 141, the second set of pipe carriers 53 is aligned with the five racks 42 of the pipe lifting device 4 of the first roller slot machine set 2, and the third set of pipe carriers 53 is aligned with the five racks 42 of the pipe lifting device 4 of the second roller slot machine set 3.

The distance between a group of pipe conveying brackets 53 is taken as a unit, the movable trolley 5 only moves one unit distance at a time, after the movable trolley 5 moves one unit distance, the first group of pipe conveying brackets 53 are aligned with five material supporting frames 42 of the pipeline supporting device 4 of the first roller groove unit 2, the second group of pipe conveying brackets 53 are aligned with five material supporting frames 42 of the pipeline supporting device 4 of the second roller groove unit 3, and the third group of pipe conveying brackets 53 are positioned at the discharging mechanism 6 to discharge the processed pipeline to the discharging mechanism 6.

That is, the traveling carriage 5 is moved back and forth from the transfer platform 141 to the first channeling unit 2 and from the first channeling unit 2 to the transfer platform 141 with reference to the first pipe transfer carriage 53.

3. When the movable trolley 5 is at the initial position, the first group of pipe transportation brackets 53 are located below the last five pipes of the material moving platform 141, the lifting platform 52 of the movable trolley 5 is lifted, the first group of pipes are lifted by the first group of pipe transportation brackets 53, then the movable trolley 5 moves towards the unloading mechanism 6 for a unit distance, the first group of pipe transportation brackets 53 move to the position of the first rolling slot unit 2, the lifting platform 52 falls back, the first group of pipes are placed on the pipe lifting device 4 at the corresponding position of the first rolling slot unit 2, and the movable trolley 5 returns to the initial position.

The trusteeship platform 41 of the pipeline lifting device 4 at the corresponding position of the first channeling unit 2 rises to the set height, the first channeling unit 2 rolls the groove to the first group of pipeline one end part through the first rail motion, the groove is rolled to the first group of pipeline one end, the groove is finished, the first channeling unit 2 breaks away from the first group of pipeline, the trusteeship platform 41 falls back, the lifting platform 52 of the travelling car 5 rises, the first group of pipeline is lifted by the first group of pipe conveying bracket 53, the first group of pipeline with one end rolled the groove is lifted by the second group of pipe conveying bracket 53.

4. The movable trolley 5 moves a unit distance towards the unloading mechanism 6, the first group of pipe conveying brackets 53 convey the second group of pipes to the pipe lifting devices 4 at the corresponding positions of the first rolling slot unit 2, the second group of pipe conveying brackets 53 convey the first group of pipes with one ends rolled to the pipe lifting devices 4 at the corresponding positions of the second rolling slot unit 3, the lifting platform 52 falls back, and the movable trolley 5 returns to the initial position.

The supporting pipe platforms 41 of the pipeline lifting devices 4 corresponding to the first rolling groove unit 2 and the second rolling groove unit 3 are simultaneously lifted to a set height, the first rolling groove unit 2 moves to the end part of one end of a second group of pipelines through a first rail, and rolling grooves are carried out on one end of the second group of pipelines; meanwhile, the second channeling unit 3 moves to the end part of the other end of the first group of pipelines through a second track to perform channeling on the other end of the first group of pipelines; after the rolling is finished, the first rolling groove unit 2 is separated from the second group of pipelines, the second rolling groove unit 3 is separated from the first group of pipelines, and the supporting pipe platform 41 falls back.

5. The lifting platform 52 of the movable trolley 5 is lifted, the first group of pipe conveying brackets 53 support the third group of pipelines, the second group of pipe conveying brackets 53 support the second group of pipelines with one ends being rolled, and the third group of pipe conveying brackets 53 support the first group of pipelines with two ends being rolled.

The moving trolley 5 moves a unit distance towards the unloading mechanism 6, the third group of pipelines are moved to the position of the first rolling slot unit 2 by the first group of pipe conveying brackets 53, the second group of pipelines are moved to the position of the second rolling slot unit 3 by the second group of pipe conveying brackets 53, the first group of pipelines with finished rolling slots are moved to the position of the unloading mechanism 6 by the third group of pipe conveying brackets 53, the lifting platform 52 falls back, the third group of pipelines are placed on the pipeline lifting device 4 at the corresponding position of the first rolling slot unit 2, the second group of pipelines with finished rolling slots at one end are placed on the pipeline lifting device 4 at the corresponding position of the second rolling slot unit 3, the first group of pipelines with finished rolling slots are moved away through the unloading mechanism 6, and the moving trolley 5 returns to the initial position.

It can be seen from the above working process that the travelling bogie 5 can realize the continuous transportation of a plurality of groups of pipelines only by reciprocating one unit distance, and compared with the prior art, the travelling bogie has the advantages of simple path, simple and convenient program setting, and easy operation and control.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the content of the claims of the present invention shall fall within the technical scope of the present invention.

Claims

1. A multi-station pipeline channeling device comprises a feeding mechanism (1) which sequentially arranges a plurality of pipelines at equal intervals, a first channeling unit (2) which simultaneously performs channeling processing on one end of the plurality of pipelines at a first channeling station (21), a second channeling unit (3) which simultaneously performs channeling processing on the other end of the plurality of pipelines after the first channeling station is processed at a second channeling station (31), and a discharging mechanism (6) which discharges the pipelines after the channeling at two ends, and further comprises a moving trolley (5) which sequentially conveys the pipelines on a pipeline conveying path among the feeding mechanism (1), the first channeling unit (2), the second channeling unit (3) and the discharging mechanism (6); the first rolling groove unit (2) is arranged on the first track, the second rolling groove unit (3) is arranged on the second track, and the first rolling groove unit (2) and the second rolling groove unit (3) are sequentially arranged on two sides of the pipeline conveying path in parallel; the pipeline lifting device (4) for lifting the pipeline to the first roll-groove station (21) and the second roll-groove station (31) is arranged on the outer side of the movable trolley (5) and on two sides of the pipeline conveying path; the method is characterized in that:

the feeding mechanism (1) comprises a material placing frame (11), a pipe fitting shifting, a correcting device (13) and a material moving device (14) which are sequentially arranged on two sides of a pipeline conveying path, wherein at least one material shifting part and one correcting device (13) are respectively arranged on two sides of the pipeline conveying path at the tail part of the material placing frame (11); each correcting device (13) comprises a support frame (131), a connecting seat (132) and a corrector (133), wherein the corrector (133) is arranged on the connecting seat (132), and the connecting seat (132) is arranged on the support frame (131);

the material moving device (14) comprises material moving platforms (141) which are respectively arranged on two sides of a pipeline conveying path and between the material placing frames (11) and the first rolling groove unit (2), conveying pieces (142) which circularly rotate around the material moving platforms, and a plurality of material moving frames (143) which are arranged on the conveying pieces and are equidistantly spaced, wherein the conveying pieces (142) at least keep the material moving frames (143) which are equal to the number of processing pipelines of each rolling groove unit on the upper surface of the material moving platform (141) in each rotation.

2. A multi-station pipe channeling apparatus as claimed in claim 1, wherein: all be provided with pipeline lifting device (4) on first slot rolling unit (2) line and second slot rolling unit (3) line, every pipeline lifting device (4) include that two symmetries set up in pipeline delivery path both sides, trusteeship platform (41) that have the lift part, every trusteeship platform (41) top sets up a plurality of equidistance spaced material support frame (42), material support frame (42) quantity at every trusteeship platform (41) top equals with every slot rolling unit processing pipeline quantity.

3. A multi-station pipe channeling apparatus as claimed in claim 2, wherein: each material supporting frame (42) is arranged on a sliding rail (43) at the top of the material supporting platform (41), each material supporting frame (42) is connected with an elastic component (44), the elastic components (44) push the material supporting frames (42) towards the direction of the channeling unit, and the material supporting frames (42) are provided with rolling parts.

4. A multi-station pipe channeling apparatus as claimed in claim 3, wherein: the material supporting frame (42) is V-shaped, rolling parts arranged on the material supporting frame are rolling wheels, and the elastic part (44) is a compression gas spring.

5. A multi-station pipe channeling apparatus as claimed in claim 2, wherein: the lifting component of the supporting platform (41) is an electric cylinder.

6. A multi-station pipe channeling apparatus as claimed in claim 1, wherein: the movable trolley (5) comprises a base (51), a lifting platform (52) and a plurality of pipe conveying brackets (53) which are arranged above the lifting platform at equal intervals, wherein the number of the pipe conveying brackets (53) is three times that of the processing pipelines of each rolling slot machine set.

7. The multi-station pipe channeling apparatus of claim 6, wherein: a track is arranged on a pipeline conveying path, a base (51) of the movable trolley (5) is connected with the track in a sliding mode, and the movable trolley (5) slides back and forth between the feeding mechanism (1) and the discharging mechanism (6) through the track.

8. The multi-station pipe channeling apparatus of claim 1, wherein: the tail end of the material placing frame (11) is provided with a convex material blocking piece (15); the kick-out piece comprises a lifting support and a kick-out device (12) arranged at the top end of the lifting support, the kick-out device (12) sequentially comprises a protrusion (121) with an upward starting end, an inclined plane (122) connected with the protrusion and a concave part (123) with a tail end connected with the inclined plane, and the concave part (123) is aligned with a material moving frame (143) which is closest to the material placing frame (11) on the material moving platform (141).

9. A multi-station pipe channeling apparatus as claimed in claim 8, wherein: the corrector (133) includes a cylinder (1332) and a top plate (1331) connected to the cylinder (1332).

10. A multi-station pipe channeling apparatus as claimed in claim 1, wherein: the support frame (131) of the correcting device (13) is provided with a plurality of mounting positions of the connecting seats (132).