CN218692868U

CN218692868U - Mandrel type metal bent pipe forming machine

Info

Publication number: CN218692868U
Application number: CN202223031128.3U
Authority: CN
Inventors: 刘礼清
Original assignee: Wenzhou Wurui Machinery Technology Co ltd
Current assignee: Wenzhou Wurui Machinery Technology Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-03-24
Anticipated expiration: 2032-11-15

Abstract

The utility model provides a mandrel type metal elbow pipe make-up machine, top beam and base roof beam including setting up from top to bottom, be equipped with between base roof beam and the top roof beam and connect pull rod between them, be equipped with the walking beam that can reciprocate between top beam and the base roof beam, walking beam and pull rod sliding fit, be equipped with the mode locking jar that the drive walking beam reciprocated on the top roof beam, the downside of walking beam is equipped with the elbow mould, be equipped with the lower elbow mould that corresponds with last elbow mould on the base roof beam, form the return bend passageway between last elbow mould and the lower elbow mould, return bend passageway one end is connected with the return bend plug, be equipped with on the base roof beam and push the system hydro-cylinder, it corresponds the setting with the other end of return bend passageway to push the system hydro-cylinder. The bending machine is reasonable in structural design, a bent pipe channel is formed between the upper bending die and the lower bending die, and the straight metal pipe is pushed to move by the pushing oil cylinder in the bent pipe channel, so that the metal pipe moves along the bent pipe channel and is guided by the bent pipe core rod to be bent.

Description

Mandrel type metal bent pipe forming machine

Technical Field

The utility model relates to a return bend equipment technical field, concretely relates to mandrel type metal return bend make-up machine.

Background

A mandrel type metal elbow forming machine comprises an elbow die, a mandrel and a push rod, wherein an elbow channel is formed in the elbow die, the mandrel is arranged at one end of the elbow die, a metal pipe is placed in the elbow die and sleeved on the mandrel, the push rod pushes the metal pipe at the other end of the elbow die, the metal pipe moves along the elbow channel and is guided by the mandrel, and therefore elbow is completed. The pipe bending die consists of an upper die and a lower die, wherein the upper die can move up and down, so that the die is opened and closed, and the metal pipe is put in and taken out. After the pipe bending is finished, the bent metal pipe is sleeved on the core rod, the core rod rotates to enable the bent pipe to leave the pipe bending die, and then the bent pipe is separated from the core rod.

The applicant applies for a demoulding device of a bent pipe forming machine, and the patent application number is 2022227195164, which particularly discloses the structure of the demoulding device.

The foregoing is a description of the prior art of the present application and is provided by reference.

The elbow molding machine of this application has applied the shedder of above-mentioned patent. The oil cylinder pushes the metal pipe to move to bend the pipe, and the bent pipe on the core rod is removed through the demoulding device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mandrel type metal return bend make-up machine, its structural design is reasonable, and the suitability is strong.

The technical scheme of the utility model is realized like this:

a mandrel type metal elbow forming machine comprises a top beam and a base beam which are arranged up and down, a pull rod for connecting the top beam and the base beam is arranged between the base beam and the top beam, a movable beam capable of moving up and down is arranged between the top beam and the base beam, the movable beam is in sliding fit with the pull rod, a mold locking cylinder for driving the movable beam to move up and down is arranged on the top beam, an upper elbow mold is arranged on the lower side of the movable beam, a lower elbow mold corresponding to the upper elbow mold is arranged on the base beam, an elbow channel is formed between the upper elbow mold and the lower elbow mold, an elbow mandrel is connected to one end of the elbow channel, a pushing cylinder is arranged on the base beam, and the pushing cylinder is arranged corresponding to the other end of the elbow channel.

Through adopting above-mentioned technical scheme, the fixed setting of elbow mould is down at the base roof beam, and the fixed setting of elbow mould is gone up on the walking beam, is equipped with the mode locking jar that the drive walking beam reciprocated on the roof beam, and the elbow mould reciprocates under the drive of mode locking jar on being equivalent to for elbow mould and lower elbow mould open, are closed. When the pipe bending machine works, the metal pipe is placed in the pipe bending channel, the pushing oil cylinder pushes the metal pipe to move in the pipe bending channel, the metal pipe is guided by the pipe bending channel and the pipe bending mandrel to be bent, after the pipe bending is completed, the mold is opened, the pipe bending mandrel is turned over, and the pipe bending is moved out of the pipe bending channel.

The utility model discloses further set up to, last elbow mould form with the walking beam and can dismantle and be connected, the lower elbow mould forms with the base roof beam and can dismantle and be connected, the tip of pushing away the piston rod of system hydro-cylinder can be dismantled and be connected with and push away the system head.

By adopting the technical scheme, the upper elbow mould, the lower elbow mould and the pushing head can be detachably connected, so that the upper elbow mould, the lower elbow mould and the pushing head with corresponding models can be selected according to metal pipes with different pipe diameters, and the equipment can be suitable for bending pipelines with different pipe diameters.

The utility model discloses further set up as, the front end that pushes away the system head be equipped with rather than coaxial supporting part, the diameter of supporting part is less than the diameter that pushes away the system head.

By adopting the technical scheme, when the pushing oil cylinder pushes the metal pipe, the pushing head is abutted against the end face of the metal pipe, and the supporting part extends into the metal pipe to form a support for the inner wall of the metal pipe, so that the metal pipe is prevented from deforming towards the inner side.

The utility model discloses further set up as, the front end of supporting part be equipped with the guide portion that stretches out forward.

The utility model discloses further set up to, guide portion be the big toper structure of the little rear end of front end.

Through adopting above-mentioned technical scheme, because the tubular metal resonator is placed in the return bend passageway, the position all can be slightly different at every turn, when causing the supporting part to get into in the pipeline, probably bump with the edge of tubular metal resonator, use guide portion can guide the supporting part and get into in the tubular metal resonator, avoid the terminal surface of supporting part and tubular metal resonator to bump.

The utility model discloses further set up to, still including being used for the drive the turning device of return bend plug upset.

By adopting the technical scheme, the beneficial effects of the utility model are that:

(1) The bending device is reasonable in structural design, a bent pipe channel is formed between the upper bending die and the lower bending die, and the straight metal pipe is pushed to move by the pushing oil cylinder in the bent pipe channel, so that the metal pipe moves along the bent pipe channel and is guided by the bent pipe core rod to be bent. And opening the upper elbow die and the lower elbow die, putting in or taking out the metal pipe, closing the upper elbow die and the lower elbow die to form clamping of the metal pipe, and then performing pipe bending.

(2) Go up elbow mould and lower elbow mould and be detachable design, conveniently select to use different moulds according to the pipe diameter of difference, push away the system head of pushing away on the system hydro-cylinder simultaneously and also for dismantling the change design, can select corresponding system head of pushing away according to the diameter by the return bend.

(3) The pushing head is provided with a supporting part and a guiding part, the supporting part can form a supporting shape for the inner cavity of the pipeline, and the guiding part can guide the supporting part to enter the pipeline.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the upper elbow die of the present invention.

Fig. 3 is a schematic structural view of the pushing head of the present invention.

Fig. 4 is a schematic structural view of the turnover device of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention is described below with reference to fig. 1-4:

example 1: a mandrel type metal elbow forming machine comprises a top beam 1 and a base beam 2 which are arranged at an upper interval and a lower interval, wherein four pull rods 3 are arranged between the base beam 2 and the top beam 1 and used for connecting the top beam and the base beam, and the pull rods 3 are polished rods and play a role in guiding.

Be equipped with the walking beam 4 that can reciprocate between quick-witted back timber 1 and the base roof beam 2, walking beam 4 and four pull rods 3 sliding fit are equipped with the mode locking jar 5 that the drive walking beam 4 reciprocated on quick-witted back timber 1, and mode locking jar 5 is the hydro-cylinder, and mode locking jar 5 drive walking beam 4 slides on pull rods 3.

An upper elbow die 6 is arranged on the lower side of the movable beam 4, a lower elbow die 7 corresponding to the upper elbow die 6 is arranged on the base beam 2, an elbow channel 8 is formed between the upper elbow die 6 and the lower elbow die 7, an inwards concave and L-shaped elbow channel 8 is arranged on the lower side surface of the upper elbow die 6, an inwards concave and L-shaped elbow channel 8 is arranged on the upper side surface of the lower elbow die 7, the cross sections of the elbow channels 8 on the upper elbow die 6 and the lower elbow die 7 are semicircular, and the elbow channels 8 on the upper elbow die 6 and the lower elbow die 7 are combined into an elbow channel 8 with a circular cross section.

Referring to fig. 4, one end of the elbow channel 8 is connected with an elbow mandrel 9, the diameter of the elbow mandrel 9 is smaller than that of the elbow channel 8, the elbow mandrel 9 and the elbow channel 8 are arranged at an interval, a turning device for driving the elbow mandrel 9 to turn over is arranged on the base beam 2, the turning device comprises a swing frame 101, fixing seats 102, a driving shaft 103, a driving cylinder 104 and driving arms 108, the fixing seats 102 are arranged at two intervals, two ends of the driving shaft 103 are rotatably connected with the two fixing seats 102, the swing frame 101 is fixedly arranged on the driving shaft 103, the elbow mandrel 9 is detachably connected to the swing frame 101, one end of the driving cylinder 104 is hinged to the base beam 2, the other end of the driving cylinder 104 is connected to the driving shaft 103 through the driving arms 108, one end of the driving arms 108 is fixedly connected to the driving shaft 103, and the other end of the driving arms 108 is hinged to the other end of the driving cylinder 104. In the structure, the driving oil cylinder 104 stretches and retracts to drive the driving shaft 103 to rotate, the swing frame 101 turns over, and the bending pipe core rod 9 is driven to turn over.

The detachable connection structure of the mandrel 9 and the rocking frame 101 can adopt various realizable implementation structures, for example, flange plates are respectively arranged on the mandrel 9 and the rocking frame 101, and the two are fixedly connected through the flange plates.

The base beam 2 is provided with a pushing oil cylinder 12, and the pushing oil cylinder 12 is arranged corresponding to the other end of the bent pipe channel 8. The metal pipe in the elbow channel 8 is pushed to move by the pushing cylinder 12.

The upper elbow mould 6 and the movable beam 4 form detachable connection, and the upper elbow mould 6 and the base beam 2 form detachable connection. The movable beam 4 and the base beam 2 are respectively provided with an installation slide rail along the horizontal direction, the installation slide rails respectively penetrate through one side of the movable beam 4 and one side of the base beam 2, and the upper elbow die 6 are respectively installed from the penetrating side and are fixed through screws.

The end of the piston rod of the pushing oil cylinder 12 is detachably connected with a pushing head 13. The pushing head 13 is in threaded connection with a piston rod of the pushing oil cylinder 12, a threaded hole is formed in the pushing head 13, a supporting portion 14 coaxial with the pushing head 13 is arranged at the front end of the pushing head 13, and the diameter of the supporting portion 14 is smaller than that of the pushing head 13. The pushing head 13 and the supporting part 14 are both cylindrical structures, the pushing head 13, the supporting part 14 and a piston rod of the pushing oil cylinder 12 are coaxially arranged, the diameter of the supporting part 14 is smaller than that of the pushing head 13, and the diameter of the supporting part 14 is close to the inner diameter of a bent metal pipe or equal to the inner diameter of the metal pipe.

The front end of the support part 14 is provided with a guide part 15 protruding forwards, and the guide part 15 is a conical structure with a small front end and a large rear end. The guide portion 15 guides the support portion 14 into the inside of the metal pipe.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a mandrel type metal elbow forming machine, is equipped with the pull rod of connecting between them, its characterized in that including the quick-witted back timber and the base roof beam that set up from top to bottom between base roof beam and the quick-witted top roof beam: the movable beam capable of moving up and down is arranged between the top beam and the base beam, the movable beam is in sliding fit with the pull rod, a mold locking cylinder for driving the movable beam to move up and down is arranged on the top beam, an upper elbow mold is arranged on the lower side of the movable beam, a lower elbow mold corresponding to the upper elbow mold is arranged on the base beam, a bent pipe channel is formed between the upper elbow mold and the lower elbow mold, one end of the bent pipe channel is connected with a bent pipe core rod, a pushing oil cylinder is arranged on the base beam, and the pushing oil cylinder is arranged corresponding to the other end of the bent pipe channel.

2. The mandrel type metal elbow molding machine according to claim 1, wherein: the upper elbow mould and the movable beam are detachably connected, the lower elbow mould and the base beam are detachably connected, and the end part of a piston rod of the pushing oil cylinder is detachably connected with the pushing head.

3. The mandrel type metal elbow molding machine according to claim 1, wherein: the front end of the pushing head is provided with a supporting part which is coaxial with the pushing head, and the diameter of the supporting part is smaller than that of the pushing head.

4. The mandrel type metal elbow molding machine according to claim 3, wherein: the front end of the supporting part is provided with a guide part which extends forwards.

5. The mandrel type metal elbow molding machine according to claim 4, wherein: the guiding part is a conical structure with a small front end and a large rear end.

6. The mandrel type metal elbow molding machine according to claim 1, wherein: the device also comprises a turnover device for driving the elbow mandrel to turn over.