CN113619088B - Pipe bending mold core straightening device, pipe bending system and pipe bending process - Google Patents
Pipe bending mold core straightening device, pipe bending system and pipe bending process Download PDFInfo
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- CN113619088B CN113619088B CN202110766724.7A CN202110766724A CN113619088B CN 113619088 B CN113619088 B CN 113619088B CN 202110766724 A CN202110766724 A CN 202110766724A CN 113619088 B CN113619088 B CN 113619088B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/08—Bending or folding of tubes or other profiled members
- B29C53/083—Bending or folding of tubes or other profiled members bending longitudinally, i.e. modifying the curvature of the tube axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/82—Cores or mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/84—Heating or cooling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a bent pipe mold core straightening device, a bent pipe system and a bent pipe process, which belong to the field of pipeline processing, and comprise a supporting seat, wherein a first sliding seat capable of being adjusted in an up-down mode is arranged on the supporting seat, a first supporting piece for supporting and extracting a mold core steel rope is fixedly arranged on the first sliding seat, a winding mechanism for pulling the steel rope and a second supporting piece arranged on the lower side of the winding mechanism are also arranged on the supporting seat, the steel rope on a winch is connected with a mold core, the mold core can be lifted upwards to be in a vertical state when the mold core is extracted, the mold core is clamped by a straightening piece and then is kept, so that the mold core can be straightened, the surface of the mold core is coated with lubricant by feeding the lubricant into a flow groove in the straightening process, the mold core can be conveniently inserted into a mold core for the next time, and a first protective sleeve and a second protective sleeve are arranged in an oven body to cool and protect two ends of a pipeline, so that deformation generated during processing is reduced.
Description
Technical Field
The invention belongs to the field of pipeline processing, and particularly relates to a bent pipe mold core straightening device, a bent pipe system and a bent pipe process.
Background
When the PVDF material is bent, the shape of the bent pipe cannot be kept after the bent pipe due to the material of the pipe, the pipe is heated and baked to soften the pipe, then the pipe can be bent on pipe bending equipment, the mold core is inserted into the pipe in the process of baking the pipe and bending the pipe, the mold is made of flexible materials, can resist high temperature and can be bent, but the mold is difficult to recover after being bent due to long-time bending and heating treatment, so that the mold core is plastically deformed, the mold core is easy to deform after being inserted into the pipe, and the bending quality of the pipe is further reduced,
in addition, the inner diameter of the pipeline to be treated is generally smaller than that of the mould core, and when the mould core is deformed, the pipeline is poor in mould core, so that the pipeline is more difficult to process.
Disclosure of Invention
The invention aims to solve the problems and provides a straightening device, a system and a process for a mould core of an elbow, which are used for straightening the mould core after the elbow and coating lubricant so as to facilitate the insertion of the mould core.
In order to achieve the above purpose, the invention adopts the following technical scheme: the pipe bending mold core straightening device comprises a supporting seat, wherein a first sliding seat capable of being lifted and lowered is arranged on the supporting seat, a first supporting piece for supporting and extracting a mold core steel rope is fixedly arranged on the first sliding seat, a winding mechanism for pulling the steel rope and a second supporting piece arranged on the lower side of the winding mechanism are also arranged on the supporting seat,
the support seat is movably provided with a plurality of straightening pieces, after the mold cores are arranged into a vertical state by the first support piece, the mold cores are clamped by the straightening pieces, the straightening pieces are provided with a plurality of flow grooves, and lubricant for lubricating the mold cores flows in the flow grooves.
Further, the connecting seats are fixedly arranged on two opposite side surfaces of the supporting seat, the driving sources for driving the straightening pieces to move are arranged on the connecting seats, the straightening pieces are rod pieces, the surfaces of the straightening pieces are provided with inwards concave straightening parts, the flow grooves are formed in the surfaces of the straightening parts, and the surfaces of the supporting seat are provided with bearing boxes.
Further, support side plates are fixedly arranged on two side faces of the support seat, a plurality of adjusting holes are formed in the support side plates, and the second support piece is installed on the adjusting holes.
Further, the winding mechanism comprises a winch rotatably arranged on the supporting seat, a driving source is connected to the winch, and a steel rope wound on the winch bypasses the second supporting piece and a pulley arranged at the top of the first supporting piece to be connected with the end part of the mold core.
Further, a sliding rail is arranged on the supporting seat, and the first sliding seat is arranged on the sliding rail in a sliding manner.
The pipe bending system comprises a pipe drying device, a pipe bending device and a straightening device, wherein the pipe drying device comprises a drying oven body, a second sliding seat is movably arranged in the drying oven body, a plurality of protection components for protecting a pipeline to be treated are arranged on the second sliding seat, a pull rod is movably arranged in an inner cavity of the drying oven body, passes through the protection components and the pipeline to be treated and is connected with a mold core, and the mold core is pulled into the pipeline when the pull rod moves;
the pipe bending device comprises a bending piece, a first clamping part for clamping the end part of a pipe is arranged at one end of the bending piece, a cavity surrounding the first clamping part is formed in the bending piece, cooling water is introduced into the cavity, and the pipe bending device further comprises a clamping piece which is arranged at one side of the bending piece for clamping the pipe and can be in contact with the bending piece and clamps the pipe on the bending piece.
The protection component comprises a first protection sleeve and a second protection sleeve which can be mutually buckled together, the first protection sleeve and the second protection sleeve are buckled at the end part of the pipeline, cooling water for cooling the pipeline is connected to the inside of the protection component in a hollow mode, and a control mechanism for controlling the opening and the closing of the protection component is connected to the first protection sleeve.
Further, cooling water bags for cooling the pipeline are arranged on two side surfaces of the clamping piece.
Further, a plurality of unloading pieces are arranged on the bending piece, the unloading pieces penetrate through the surface of the clamping pipeline on the outer circle of the first sliding seat, and when the pipeline is disassembled, the pipeline is pushed to be separated from the bending piece.
A tube bending process of a tube bending system, comprising the steps of:
A. and (3) blanking: cutting a pipeline to be processed into a required length by a blanking machine, and leaving two ends of the allowance to be 30-50mm respectively;
B. cover protective sheath: sleeving the protection component at one end of the pipeline, and sliding the protection component into the oven;
C. and (3) baking the tube: preheating the pipeline;
D. inserting mold core: the mold core is hung on a pull rod, and the pull rod pulls the mold into the pipeline;
E. cover protective sheath: sleeving the protection component at the other end of the pipeline;
F. and (3) baking the tube: the temperature of the drying tube is 160-170 ℃ and the time is 10-15min;
G. material transferring: transferring the baked pipeline to the bending piece;
H. bending pipe: the pipeline rotates along with the bending piece, is attached to the surface of the bending piece, is processed into an elbow, and the tail of the elbow is fixed;
I. and (3) heat preservation: the first clamping part moves to one side of the bending piece, contacts with the bending piece and contacts with the outer wall of the pipeline, so that the bent pipeline is subjected to heat preservation and shaping;
J. drawing mold core: when the temperature of the cooling pipeline reaches 40-50 ℃, the mold core is pulled out from the tail end of the bent pipe;
K. taking an elbow;
l, straightening the mold core; and (5) feeding the mold core into a straightening device for straightening, and adding a lubricant.
The invention has the beneficial effects that: the invention provides a bent pipe mold core straightening device, a bent pipe system and a bent pipe process, wherein 1, a steel rope on a winch is connected with a mold core, so that the mold core is more convenient and quicker in mold core drawing, the drawn mold core can be lifted upwards to be in a vertical state through a first sliding seat and a first supporting piece, the mold core is clamped and then is kept by a straightening piece, the mold can be straightened, and in the straightening process, the surface of the mold core is coated with lubricant by feeding the lubricant into a flow groove, so that the mold core can be conveniently inserted into the mold core for the next time.
2. When pipe bending is carried out on the pipe, the pipe to be treated is supported by inserting the mold core into the pipe, so that the pipe is prevented from deforming due to softening after heating in the process of drying the pipe, the first protective sleeve and the second protective sleeve are arranged in the oven body, the two ends of the pipe are cooled and protected, the temperature of the pipe at the two ends is lower than 80 ℃, and therefore the pipe can be conveniently clamped at the two ends of the pipe in the pipe bending process, and the deformation generated during processing is reduced.
3. When the pipe is bent, the pipe is inserted into the first clamping part, so that the end part of the pipe cannot generate clamping marks when the pipe is bent, after the pipe is bent, the clamping part is contacted with the pipe, and the inside and the outside of the pipe are clamped, so that the intact pipe is shaped, and the bent pipe is cooled by cooling water in the cooling water bag and the cavity in the bending part, so that the mold core is conveniently drawn out.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the direction A in FIG. 1;
FIG. 3 is a schematic view of a partial enlarged structure at B in FIG. 2;
FIG. 4 is a schematic diagram of the general assembly of the elbow system;
FIG. 5 is a schematic cross-sectional view of a tube bending apparatus;
FIG. 6 is a schematic cross-sectional view of a baking tube apparatus;
fig. 7 is a partially enlarged schematic view of the structure at C in fig. 6.
The text labels in the figures are expressed as: 10. a support base; 11. a first sliding seat; 12. a first support; 13. a second support; 14. a straightening piece; 15. a flow channel; 16. a straightening part; 17. supporting the side plates; 18. an adjustment aperture; 19. an oven body; 20. a second sliding seat; 21. a pull rod; 22. a bending piece; 23. a first clamping part; 24. a clamping member; 25. a first protective sleeve; 26. a second protective sleeve; 27. cooling water bags; 28. a discharge member; 29. a connecting seat; 30. a receiving box; 31. a slide rail; 32. and (5) a winch.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present invention, the following detailed description of the present invention with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present invention.
As shown in the accompanying drawings 1-3 in the specification, the specific structure of the invention is as follows: the utility model provides a return bend mold core coalignment, includes supporting seat 10, supporting seat 10 includes horizontal part and vertical part, connects the strengthening rib between horizontal part and the vertical part, set up the first seat 11 that slides of adjusting that goes up and down on the vertical part of supporting seat 10, set up slide rail 31 on the supporting seat 10, first seat 11 that slides is set up on slide rail 31, first seat 11 that slides is last to set up the first support piece 12 that supports and draws the mold core steel cable, the top rotation of first support piece 12 sets up the pulley, still set up on the supporting seat 10 and pull the winding mechanism of steel cable and set up in second support piece 13 of winding mechanism downside, concretely, second support piece 13 is the pulley, winding mechanism includes rotating the capstan winch 32 that sets up on supporting seat 10, connect the actuating source on capstan 32, the actuating source is the fixed motor that sets up on the side of supporting seat 10, the steel cable that winds on capstan 32 winds bypasses second support piece 13 and set up pulley and the top of first support piece 12 is connected with the tip of first support piece 12 and the second support piece 13 and when the upward motion of first support piece 12 is taken out, and the upward motion is moved by the pulley;
the support seat 10 is movably provided with a plurality of straightening parts 14, specifically two straightening parts 14 are arranged, the surfaces of the straightening parts 14 are rod pieces, the surfaces of the straightening parts 14 are provided with inwards concave straightening parts 16, the straightening parts 16 are semicircular grooves formed in the straightening parts 14, after the two straightening parts 14 are combined together, the two straightening parts 16 clamp the mold cores and keep the mold cores for a period of time, so that the clamped mold cores are straightened, the straightening parts 14 are provided with a plurality of flow grooves 15, the flow grooves 15 are formed in the surfaces of the straightening parts 16, after the mold cores are arranged into a vertical state by the first support part 12, the mold cores are clamped by the straightening parts 14, the flow grooves 15 are internally provided with lubricant for supplying the lubricant to the mold cores, and after the lubricant flows into the flow grooves 15, the surfaces of the mold cores are fully distributed by the lubricant.
Preferably, the two opposite sides of the supporting seat 10 are fixedly provided with a connecting seat 29, the connecting seat 29 is provided with a driving source for driving the straightening piece 14 to move, the driving source is a driving cylinder fixedly arranged on the connecting seat 29, the cylinder drives the straightening piece 14 to move towards the middle so as to clamp and straighten the mold core, the surface of the supporting seat 10 is provided with a bearing box 30, and the bearing box 30 is used for bearing the lubricant flowing down from the straightening piece 14.
Preferably, support side plates 17 are fixedly arranged on two side surfaces of the support seat 10, a plurality of adjusting holes 18 are arranged on the support side plates 17, the second support piece 13 is mounted on the adjusting holes 18, and the up-down position of the second support piece 13 can be adjusted by adjusting the up-down positions of the adjusting holes 18.
When in use, firstly, the end part of the mould core is connected with a steel rope on the winch 32, then a motor connected with the winch 32 is started, the motor drives the winch 32 to rotate, the mould core is pulled out of a pipeline, then the first supporting piece 12 is regulated to move upwards, the mould core is lifted up, the mould is arranged between the two straightening pieces 14, a driving cylinder connected with the straightening pieces 14 is controlled to start, the cylinder drives the straightening pieces 14 to draw close towards the middle, the mould core is clamped in the straightening part 16 to be held, and the straightening is completed,
and then lubricant is applied to the surface of the mold core through an interface on the straightening piece 14, the lubricant enters the flow groove 15, the surface of the mold core is fully coated, the lubricant finally drops onto the bearing box 30 for collection, after the straightening is finished, the straightening piece 14 is controlled to move to two sides, and the mold core can be taken out.
As shown in fig. 4-7 of the specification, a pipe bending system, in this embodiment, includes a pipe drying device, a pipe bending device and a straightening device,
wherein the drying tube device comprises a drying oven body 19, a second sliding seat 20 is movably arranged in the drying oven body 19, the second sliding seat 20 is arranged on a mounting frame arranged in an inner cavity of the drying oven body 19, the second sliding seat 20 and the mounting frame are mutually arranged in a sliding way, the second sliding seat 20 can slide in and out of the mounting frame, a sliding rail is fixedly arranged on the second sliding seat 20, two mounting frames are arranged on the sliding rail on the second sliding seat 20, one of the mounting frames is arranged at the same position as the second sliding seat 20, the other mounting frame is arranged at one side far away from the second sliding seat 20 and can mutually slide with the sliding rail, so that the change of pipelines with different lengths can be adapted to realize the adjustment of the position, after the position adjustment is finished, the two mounting frames arranged on the second sliding seat 20 are mutually fixed, a protection component for protecting the end part of the pipeline to be treated is arranged,
the protection component comprises a first protection sleeve 25 and a second protection sleeve 26 which can be mutually buckled together, the first protection sleeve 25 and the second protection sleeve 26 are in a C-shaped structure, after being spliced together, a space for installing a pipeline is formed inside, when the protection component is used, the first protection sleeve 25 and the second protection sleeve 26 are buckled at the end part of the pipeline, cooling water for cooling the pipeline is hollow connected inside, the cooling water is introduced through a joint arranged on the first protection sleeve 25 and the second protection sleeve 26, a water tank for supplying water in the first protection sleeve 25 and the second protection sleeve 26 is arranged on the outer side surface of the oven body 19, a control mechanism for controlling the opening and closing of the first protection sleeve 25 is connected on the first protection sleeve 25, the control mechanism is mainly convenient for automatically opening and closing and clamping, the control mechanism can simultaneously control the opening and closing of the first protection sleeve 25 on two mounting racks, the first protection sleeve 25 on the mounting frame far away from one side of the second sliding seat 20 can be independently opened, the first protection sleeve 25 at the position is close to the outlet of the oven body 19, in the embodiment, the control mechanism mainly selects an air cylinder to drive, the pull rod 21 is movably arranged in the inner cavity of the oven body 19, threads are arranged on the pull rod 21 and penetrate through the oven body 19, a driving motor for driving the pull rod 21 to move is fixedly arranged on the outer side surface of the oven body 19, the driving motor is connected with the pull rod 21 through a thread mechanism, after the motor is started, the thread mechanism is driven to move, the pull rod 21 moves, the central axis of the pull rod 21 penetrates through the first protection sleeve 25, the second protection sleeve 26 and the pipeline to be processed, the central axes of the pull rod 21 and the pipeline placed in the first protection sleeve 25 and the second protection sleeve 26 are mutually overlapped, the end of the pull rod 21 is provided with a hook which is connected with the mold core, and when the pull rod 21 moves, the mold core is pulled into the pipeline, so that the mold core is easier to insert into the pipeline;
the pipe bending device comprises a bending piece 22, the bending piece 22 is in a semi-cylindrical shape, a driving motor is connected to the bending piece 22, the driving motor drives the bending piece 22 to rotate to complete bending action of a pipe, a circular arc-shaped groove for clamping the pipe is formed in the semi-cylindrical surface of the bending piece 22, a first clamping part 23 for clamping the end part of the pipe is formed in one end of the bending piece 22, the first clamping part 23 is arranged at a straight line section of the bending piece 22, the first clamping part 23 is a cylindrical through hole, a cavity surrounding the first clamping part 23 is formed in the bending piece 22, cooling water is introduced into the cavity, when the pipe is bent, one end of the pipe to be processed passes through the first clamping part 23, a fixing pin for fixing the pipe is arranged on the first clamping part 23, a supporting block for supporting the pipe is arranged at the lower side of the bending piece 22, the supporting block is used for clamping the pipe when the pipe is ready for bending, the pipe can be supported when the pipe is bent, the pipe bending device further comprises a straight line section arranged at the bending piece 22, the bending piece 22 is in a cylindrical through hole, cooling water is arranged in the bending piece, the bending piece 24 can be driven to be contacted with the bending piece 24, and is in contact with the clamping piece 24, and the driving piece 24 is driven to clamp the bending piece 24, and the bending piece is deformed and is contacted with the surface of the bending piece 24, and the cylinder is clamped 24.
Preferably, the cooling water bags 27 for cooling the pipeline are arranged on two side surfaces of the clamping piece 24, and when the clamping piece 24 and the bending piece 22 are contacted to shape the pipeline, the cooling water bags 27 start to cool the bent pipeline, so that the pipeline is shaped faster.
Preferably, the bending member 22 is provided with a plurality of discharging members 28, the discharging members 28 are specifically electric push rods, other power elements capable of realizing linear motion can be selected, the discharging members 28 penetrate through the surface of the clamping pipeline on the outer circle of the first sliding seat 11, and when the pipeline is disassembled, the discharging members 28 push the pipeline and the bending member 22 to separate from each other, so that the bent pipeline can be conveniently disassembled from the bending member 22.
A tube bending process of a tube bending system, comprising the steps of:
A. and (3) blanking: cutting a pipeline to be processed into a required length by a blanking machine, and leaving two ends of the allowance to be 30-50mm respectively; preferably 50mm of the diameter of the tube,
B. cover protective sheath: sleeving a protection component at one end of a pipeline to be welded, which is positioned at the inner side of the oven, and sliding the protection component into the oven;
C. and (3) baking the tube: preheating the pipeline; the preheating aims at softening a pipeline to be heated, the softening degree is smaller, the pipeline is slightly softened, the pipeline is only suitable for inserting a model, and the pipeline cannot be excessively heated, and the softening is because the diameter of a mould core is slightly larger than the inner diameter of the pipeline in the normal processing process, so that the mould core can be inserted only by the small deformation amount of the pipeline when the mould core is different, and the mould core can be completely filled with the inner diameter of the pipeline after being inserted into the pipeline.
D. Inserting mold core: the mould core is hung on the pull rod 21, a motor connected to the pull rod 21 is started, and the motor drives the pull rod 21 to pull the mould into the pipeline;
E. cover protective sheath: sleeving the protection component at the other end of the pipeline;
F. and (3) baking the tube: the temperature of the drying tube is 160-170 ℃ and the time is 10-15min; when the pipe is baked, cooling water is introduced into the first protective sleeve 25 and the second protective sleeve 26, and flows in the first protective sleeve 25 and the second protective sleeve 26, so that the temperature of the end part of the pipe can be reduced to below 80 ℃;
G. material transferring: the dried pipeline is transferred onto the bending piece 22, when the dried pipeline is inserted onto the bending piece 22, the dried pipeline is firstly inserted into the first clamping part 23, then a fixing pin is inserted at the end part of the pipeline exceeding the first clamping part 23, the fixing pin and the bending piece 22 are mutually propped against each other, and a supporting block at the lower side of the bending piece 22 moves upwards to be contacted with the pipeline on the bending piece 22, so that the pipeline is clamped;
H. bending pipe: starting a motor connected to the bending piece 22, enabling the motor 22 to rotate 180 degrees to enable the pipeline to rotate along with the bending piece 22 and to be attached to the surface of the bending piece 22, processing the bent pipe, enabling the supporting block to be in full contact with the pipeline in the process of bending the bent pipe, clamping the pipeline in the middle, and fixing and keeping the tail of the bent pipe after the bent pipe is completed;
I. and (3) heat preservation: controlling a driving cylinder connected with the first clamping part 23, so that the first clamping part 23 moves to one side of the bending piece 22, contacts with the bending piece 22 and the outer wall of the pipeline, and cooling water is introduced into the cooling water bag 27 to keep the bent pipeline warm and shape;
J. drawing mold core: when the temperature of the cooling pipeline reaches 40-50 ℃, connecting the end part of the mould core with a steel rope on a winch 32 on the straightening equipment, and drawing the mould core out of the tail end of the bent pipe under the winding of the winch 32;
K. taking an elbow;
l, straightening mold cores: after the die core is pulled out of the pipeline by the winch 32, the die core is lifted upwards by the first supporting piece 12, then the die core is placed between the straightening pieces 14, a driving air cylinder connected to the straightening pieces 14 is controlled to be started, the air cylinder drives the straightening pieces 14 to move towards the middle, the die core is clamped, so that the die core is kept aligned, lubricant is introduced into the straightening pieces 14, and the lubricant is coated on the surface of the die core through the flow grooves 15.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this invention, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the invention, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present invention.
Claims (10)
1. The utility model provides a return bend mold core coalignment, includes supporting seat (10), its characterized in that: a first sliding seat (11) capable of being adjusted in a lifting manner is arranged on the supporting seat (10), a first supporting piece (12) for supporting and extracting a mould core steel rope is fixedly arranged on the first sliding seat (11), a winding mechanism for pulling the steel rope and a second supporting piece (13) arranged on the lower side of the winding mechanism are also arranged on the supporting seat (10),
the novel die is characterized in that a plurality of straightening pieces (14) are movably arranged on the supporting seat (10), after the die core is arranged into a vertical state by the first supporting piece (12), the die core is clamped by the straightening pieces (14), a plurality of flow grooves (15) are formed in the straightening pieces (14), and lubricant for lubricating the die core flows in the flow grooves (15).
2. The bent pipe mold core straightening device according to claim 1, wherein: connecting seats (29) are fixedly arranged on two opposite side surfaces of the supporting seat (10), driving sources for driving the straightening pieces (14) to move are arranged on the connecting seats (29), the straightening pieces (14) are rod pieces, inwards concave straightening portions (16) are arranged on the surfaces of the straightening pieces, flow grooves (15) are formed in the surfaces of the straightening portions (16), and bearing boxes (30) are arranged on the surfaces of the supporting seat (10).
3. The bent pipe mold core straightening device according to claim 1, wherein: support curb plate (17) are fixed to be set up on the both sides face of supporting seat (10), set up a plurality of regulation hole (18) on supporting curb plate (17), second support piece (13) install in on regulation hole (18).
4. The bent pipe mold core straightening device according to claim 1, wherein: the winding mechanism comprises a winch (32) rotatably arranged on the supporting seat (10), a driving source is connected to the winch (32), and a steel rope wound on the winch (32) bypasses the second supporting piece (13) and a pulley arranged at the top of the first supporting piece (12) to be connected with the end part of the mold core.
5. The bent pipe mold core straightening device according to claim 1, wherein: the support seat (10) is provided with a sliding rail (31), and the first sliding seat (11) is arranged on the sliding rail (31) in a sliding way.
6. A pipe bending system, characterized in that: the straightening device comprises a drying pipe device, a pipe bending device and the straightening device according to any one of claims 1-5, wherein the drying pipe device comprises a drying box body (19), a second sliding seat (20) is movably arranged in the drying box body (19), a plurality of protection components for protecting a pipeline to be treated are arranged on the second sliding seat (20), a pull rod (21) is movably arranged in an inner cavity of the drying box body (19), the pull rod (21) penetrates through the protection components and the pipeline to be treated and is connected with a mold core, and the mold core is pulled into the pipeline when the pull rod (21) moves;
the pipe bending device comprises a bending piece (22), a first clamping part (23) for clamping the end part of a pipe is arranged at one end of the bending piece (22), a cavity surrounding the first clamping part (23) is formed in the bending piece (22), cooling water is introduced into the cavity, and the pipe bending device further comprises a clamping piece (24) which is arranged at one side of the bending piece (22) for clamping the pipe and can be in contact with the bending piece (22) and clamps the pipe on the bending piece (22).
7. A pipe bending system according to claim 6, wherein: the protection assembly comprises a first protection sleeve (25) and a second protection sleeve (26) which can be mutually buckled together, the first protection sleeve (25) and the second protection sleeve (26) are buckled at the end part of a pipeline, cooling water for cooling the pipeline is connected to the inside of the protection assembly in a hollow mode, and a control mechanism for controlling the opening and closing of the protection assembly is connected to the first protection sleeve (25).
8. A pipe bending system according to claim 6, wherein: cooling water bags (27) for cooling the pipeline are arranged on two side surfaces of the clamping piece (24).
9. A pipe bending system according to claim 6, wherein: the bending piece (22) is provided with a plurality of unloading pieces (28), the unloading pieces (28) penetrate through the surface of the clamping pipeline on the outer circle of the first sliding seat (11), and when the pipeline is disassembled, the pipeline and the bending piece (22) are pushed to be separated from each other.
10. A process for bending a tube in a system according to any one of claims 6 to 9, comprising the steps of:
A. and (3) blanking: cutting a pipeline to be processed into a required length by a blanking machine, and leaving two ends of the allowance to be 30-50mm respectively;
B. cover protective sheath: sleeving the protection component at one end of the pipeline, and sliding the protection component into the oven;
C. and (3) baking the tube: preheating the pipeline;
D. inserting mold core: the mould core is hung on a pull rod (21), and the pull rod (21) pulls the mould into the pipeline;
E. cover protective sheath: sleeving the protection component at the other end of the pipeline;
F. and (3) baking the tube: the temperature of the drying tube is 160-170 ℃ and the time is 10-15min;
G. material transferring: transferring the dried pipe to a bending piece (22);
H. bending pipe: the pipeline rotates along with the bending piece (22) and is attached to the surface of the bending piece (22), an elbow is processed, and the tail of the elbow is fixed;
I. and (3) heat preservation: the first clamping part (23) moves to one side of the bending piece (22) to contact with the bending piece (22) and contact with the outer wall of the pipeline, so that the bent pipeline is subjected to heat preservation and shaping;
J. drawing mold core: when the temperature of the cooling pipeline reaches 40-50 ℃, the mold core is pulled out from the tail end of the bent pipe;
K. taking an elbow;
l, straightening the mold core; and (5) feeding the mold core into a straightening device for straightening, and adding a lubricant.
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| CN113619088A (en) | 2021-11-09 |
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