CN107521083B

CN107521083B - Fiber pipeline production device and production process thereof

Info

Publication number: CN107521083B
Application number: CN201710918547.3A
Authority: CN
Inventors: 魏小俤; 江龙木
Original assignee: Fuqing Rongcheng Yifeng Machinery Co ltd
Current assignee: Fuqing Rongcheng Yifeng Machinery Co ltd
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2023-06-23
Anticipated expiration: 2037-09-30
Also published as: CN107521083A

Abstract

The invention relates to a fiber pipeline production device, which comprises a mould shaft, wherein one side of the mould shaft is provided with a feeding mechanism which moves back and forth along the axial direction of the mould shaft, a sheet on the feeding mechanism is connected with the mould shaft and gradually winds around the peripheral surface of the mould shaft along the spiral direction along with the rotation of the mould shaft, a preheating mechanism is arranged between the feeding mechanism and the mould shaft, the preheating mechanism and the feeding mechanism synchronously move in the same direction and overturn, the preheating mechanism comprises a preheating box, a preheating channel for the sheet to penetrate from one side of the preheating box and penetrate from the other side of the preheating box is arranged on the preheating box, at least the lower surface of the preheating channel is provided with a plurality of heaters for heating the sheet, two tensioning press rollers are arranged in the preheating channel, and the two tensioning press rollers are arranged at an upper-lower interval and have adjustable interval; the die shaft periphery side is equipped with heating mechanism, and heating mechanism is equipped with a plurality of hot plate that is used for carrying out the heating solidification shaping to the epaxial winding sheet of die including the furnace body that is used for holding die shaft in the furnace body, and the furnace body top is equipped with the bell that the interval set up.

Description

Fiber pipeline production device and production process thereof

Technical Field

The invention relates to the technical field of fiber pipeline winding processing equipment, in particular to a fiber pipeline production device and a fiber pipeline production process.

Background

The existing composite pipeline processing and molding is mostly produced by adopting a winding molding machine to wind a plurality of layers of sheets on the peripheral surface of a mold shaft, namely, the sheets such as continuous fibers, cloth belts, presoaked yarns and the like which are soaked with resin glue solution are wound on the mold shaft according to a certain rule after unreeling and preheating, and the processes of heating, melting, rolling, cooling, solidifying, demolding and the like are carried out, so that the product is obtained.

The prior fiber pipeline winding and forming machine comprises a die shaft which is transversely arranged on a frame and axially rotates, a feeding and guiding device for sending rolled sheets for producing the fiber pipeline is arranged on one side of the die shaft, the sheets on the feeding and guiding device are connected with the die shaft and gradually spirally wound on the outer peripheral surface of the die shaft along with the rotation of the die shaft, and a heating device for heating, solidifying and forming the wound sheets on the die shaft is arranged on the periphery of the die shaft. In the winding and forming process of the fiber sheet, the sheet not only needs to keep a certain heating temperature and adjust the heated uniformity so that each sheet is fully bonded and shaped, but also keeps good flatness, if the flatness of the sheet is not good, gaps are reserved between the wound layers, so that air is easy to squeeze into the gaps, and the problems of deformation, cracking, unsmooth bonding and the like of a pipeline after heating and curing are caused, the performance of a product is seriously affected, and the problems of high rejection rate, serious waste of manpower and material resources and the like are caused.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the fiber pipeline production device which has reasonable design, simple structure and high production efficiency, and simultaneously provides the fiber pipeline production process which has reasonable design and simple process and can obtain good product quality.

In order to achieve the first object, the present invention adopts the following technical scheme:

the fiber pipeline production device comprises a die shaft transversely arranged on a first frame and rotating along the axial direction of the die shaft, a second frame which is arranged at one side of the die shaft and is spaced from the first frame, a feeding mechanism which reciprocates along the axial direction of the die shaft and is used for sending sheets for producing fiber pipelines is arranged on the second frame, the sheets on the feeding mechanism are connected with the die shaft and gradually wind on the outer circumferential surface of the die shaft along the spiral direction along with the rotation of the die shaft, a preheating mechanism for preheating the sheets is arranged between the feeding mechanism and the die shaft, the preheating mechanism and the feeding mechanism synchronously move in the same direction and overturn, the preheating mechanism comprises a preheating box, a preheating channel for the sheets to penetrate from one side of the preheating box and penetrate from the other side of the preheating box is arranged on the preheating box, a plurality of heaters for heating the sheets are arranged on at least the lower surface of the preheating channel, two tensioning press rolls are arranged in the preheating channel on one side of the preheating box, and the two tensioning press rolls are arranged at intervals up and down and have adjustable intervals; the die is characterized in that a heating mechanism is arranged on the periphery of the die shaft and comprises a furnace body used for accommodating the die shaft, a plurality of heating plates used for carrying out heating curing forming on winding sheets on the die shaft are arranged in the furnace body, and a furnace cover arranged at intervals is arranged above the furnace body.

Preferably, the feeding mechanism comprises a turning shaft, a turning rack and a feeding moving table which performs reciprocating motion, wherein the turning shaft is rotatably and transversely arranged on the feeding moving table, one end of the turning shaft is fixedly sleeved with a gear, the gear is in meshed connection with a rack which is slidably arranged on the feeding moving table, the rack is driven by a turning telescopic cylinder to perform reciprocating motion, the other end of the turning shaft is connected with one side of the turning rack, and a material roller which is wound with a sheet is detachably arranged on the other side of the turning rack; the material turning telescopic cylinder stretches to drive the rack to move, and the rack drives the gear and the turning shaft to rotate to drive the material turning frame and the sheet to turn. The design makes the overturning device drive the rack to reciprocate through the expansion of the overturning telescopic cylinder so as to drive the gear meshed with the rack to rotate, thereby driving the overturning shaft fixedly connected with the gear to rotate so as to drive the overturning frame to overturn.

Further, the turning frame is connected with the other end of the turning shaft through an angle adjusting mechanism capable of adjusting the sheet sending angle, the angle adjusting mechanism comprises a locking piece, a clamping block, a lug protruding on one side of the turning frame and a fixing block fixedly arranged at the other end of the turning shaft, and the fixing block, the lug and the clamping block are sequentially arranged from top to bottom and are connected through the locking piece. The design enables the installation angle of the material turning frame and the material roller to be adjusted by adjusting the rotation angle of the lugs relative to the fixed blocks, so that the sending angle of the sheet is adjusted.

Further, the feeding mechanism both sides are equipped with the clamp plate mechanism that is used for oppressing die axle periphery sheet in order to realize the reverse winding of sheet respectively, clamp plate mechanism includes two clamp plates, two clamp plates are installed in the second frame corresponding die axle both ends respectively, two clamp plates are flexible in order to be close to or keep away from the die axle by the flexible jar drive of a clamp plate respectively. When the sheet is wound and wrapped to the end part of the die shaft, the pressing plate is controlled by the pressing plate telescopic cylinder to extend out and press the sheet on the periphery of the die shaft, then the sheet on the feeding mechanism is turned over by 180 degrees and then covered on the outer surface of the pressing plate, and the sheet rotates along with the die shaft to realize the reverse winding of the sheet.

Further, the mould axle drives business turn over furnace body by a mould shifting mechanism, mould shifting mechanism includes two supporting rail of parallel arrangement, two supporting rail locate the mould axle both ends respectively, and the both ends of every supporting rail are by two mould shifting telescopic cylinder drive lift, the mould axle both ends are respectively through a rolling element mobilizable connection on two supporting rail to spacing is carried out by the stopper that supporting rail both ends were equipped with. According to the design, the height difference at two ends of the corresponding support guide rail is adjusted by controlling the telescopic lengths of the two movable mould telescopic cylinders at each end of the mould shaft, so that the rolling parts on the support guide rail drive the mould shaft to move from one end to the other end on the support guide rail under the action of self gravity, the mould shaft can enter and exit a furnace, and the movement is stopped when the heights at the two ends of the support guide rail are the same, and the fixation of the mould shaft inside and outside the furnace is realized.

Further, a furnace cover at the other side of the mold shaft is provided with a feeding rolling mechanism for rolling air when the sheet material is removed by reversely pushing and pressing, the feeding rolling mechanism comprises a rolling roller, a rolling shaft and a rolling frame, the rolling frame is connected to the furnace cover in a sliding manner to do reciprocating motion, the rolling shaft is rotatably arranged on the rolling frame in a penetrating manner, two ends of the rolling shaft are respectively connected with two ends of the rolling roller through a cantilever, and the rolling roller is driven by a driving mechanism to rotate and lift around the rolling shaft so as to roll the air which is rolled when the sheet material is removed by reversely pushing and pressing at the other side of the mold shaft; the driving mechanism comprises a driven gear, a driving gear and a driving motor, wherein the driven gear is fixedly sleeved on the rolling shaft, the driving gear is connected with the driven gear in a meshed mode, and the driving gear is driven to rotate by the driving motor fixed on the rolling frame. The feeding rolling mechanism is designed, so that not only can the rolling roller roll on a die shaft so as to reversely push and remove air which is involved in sheet feeding, so that the problems of deformation, cracking, untight bonding and the like of a pipeline caused by air expansion in the heating and curing process of the fiber pipeline are avoided, but also the rolling effect of the rolling roller can be utilized to increase the tightness of the winding and curing process of the fiber pipeline, so that the glossiness and quality of the pipe surface are improved.

Further, the furnace cover is driven by a cover moving mechanism to approach or depart from the furnace body, the cover moving mechanism comprises a sliding beam, two track beams, two lifting columns and two support columns, the sliding beam is fixed on the upper surface of the furnace cover along the length direction of the furnace cover, two ends of the sliding beam are respectively and slidably supported on the two track beams which are arranged in parallel, one ends of the two track beams are respectively and rotatably supported at the upper ends of the two support columns, and the other ends of the two track beams are respectively driven by the two lifting columns to lift so as to drive the sliding beam and the furnace cover to lift and move along the track beams; and the two track beams are hinged with a cover moving telescopic cylinder for pushing and pulling the sliding beam. The design of this move lid mechanism not only can drive the bell and go up and down in order to be close to or keep away from the furnace body, can adjust its inclination through the lifting of track roof beam moreover to make slide beam and bell can follow track roof beam and remove and leave the furnace body top under the effect of self gravity and/or move the flexible jar of lid, thereby be convenient for load and unload the mould axle.

Further, the furnace cover is provided with an air curtain mechanism for closing a gap between the furnace cover and the furnace body, the air curtain mechanism comprises two exhaust fans, the two exhaust fans are axially arranged on two sides of the furnace cover along the mold shaft, and air outlets of the two exhaust fans are downwards arranged and form an air curtain which is longitudinally blown into the furnace body; the air outlet of at least one of the two exhaust fans is provided with an air outlet channel for connection, and the air outlet channel is provided with a linear air outlet with an air outlet facing downwards along the length direction. The design of the air curtain mechanism not only can utilize the air curtain to block the outward diffusion of hot air in the furnace body from the gap between the furnace cover and the furnace body, effectively reduce heat dissipation and play a role in heat insulation, but also can blow the hot air to flow downwards along the inner arc surfaces at two sides of the furnace body, two strands of hot air respectively flow upwards along two sides of a fiber pipeline after meeting at the bottom of the furnace body, then are converged at the top and are sucked by a fan, thereby forming hot air circulation, playing a role in soaking, improving the heating uniformity, and effectively avoiding the problems of deformation, cracking, unsmooth adhesion and the like of the fiber pipeline caused by uneven heating; the design of the air outlet channel enables the air outlet channel to form a continuous air curtain along the length direction, thereby effectively improving the heat insulation effect.

Further, the bottom of the furnace body is provided with a lifting calendaring roller bottom support mechanism, the calendaring roller bottom support mechanism comprises a plurality of roller shafts supported on the bottom side of the mold shaft, and the plurality of roller shafts are driven by a lifting chassis arranged below the furnace body to lift so as to adjust the distance between the calendaring roller bottom support mechanism and the mold shaft.

Preferably, the cross section of the furnace body is arc-shaped; the cross section of the furnace cover is n-shaped. The design of the furnace body not only can improve the heated uniformity of the fiber pipeline on the die shaft, but also can guide hot air to flow along the arc surface in the furnace body, thereby playing a role in induced air and improving the hot air circulation effect; the design of the furnace cover can prevent the hot air in the furnace body from diffusing outwards, effectively reduce heat loss and play a role in heat insulation on two sides and the top of the furnace cover.

Preferably, the die shaft is composed of an inner shaft which rotates along the axial direction of the die shaft, a plurality of arc plates which can be spliced together into a circular die and more than two demoulding mechanisms which are used for driving the arc plates to be clamped or demoulded, the demoulding mechanisms comprise a mounting plate and a threaded shaft sleeve, the mounting plate and the threaded shaft sleeve are fixedly sleeved on the inner shaft, a nut is in threaded connection with the threaded shaft sleeve, a plurality of wedge blocks which extend towards the direction of the mounting plate are fixedly arranged on the peripheral wall of the nut, wedge faces with different inclination are arranged on any two adjacent wedge blocks, a plurality of abdicating holes which are used for the wedge blocks to correspondingly pass through are arranged on the mounting plate, a plurality of supporting frames which can be lifted are respectively arranged on one surface of the mounting plate and correspond to the wedge blocks, the outer ends of the supporting frames far away from the wedge blocks are fixedly connected with the arc plates respectively, and the inner ends of the supporting frames are respectively and slidably supported on the wedge faces of the wedge blocks; the inner shaft drives the threaded shaft sleeve to rotate positively and negatively, the nut is driven to move and the wedge block is far away from or close to the mounting plate, the wedge block drives the plurality of support frames to rise or descend, and the plurality of support frames drive the plurality of arc plates to carry out die assembly or die stripping.

Preferably, the support frame comprises a mounting block, a support rod and two lifting rods, wherein the mounting block is fixed on one surface of a mounting disc, the middle parts of the two lifting rods movably penetrate through holes formed in the mounting block, the outer ends of the two lifting rods are respectively and vertically connected with the support rod, the two ends of the support rod are respectively and fixedly connected with the inner walls of corresponding arc plates, and the inner ends of the two lifting rods are both in sliding connection with wedge faces of corresponding wedge blocks.

Further, the plurality of wedge blocks are provided with a square-shaped track groove, the wedge faces are arranged on the inner wall of the track groove, a sliding rod is connected in the track groove in a sliding mode, and two ends of the sliding rod are respectively connected with the inner ends of the two lifting rods.

In order to achieve the second object, the present invention adopts the following technical scheme:

the fiber pipeline production process is carried out by applying the fiber pipeline production device disclosed by any one of the invention, and the production process comprises the following steps:

1) And (3) feeding: firstly, mounting a die shaft into a furnace body, mounting a sheet for producing a fiber pipeline on a feeding mechanism, adjusting a preheating channel of a preheating box to be in the same direction as feeding of the sheet, sequentially drawing one end of the sheet on the feeding mechanism to pass through a space between two tensioning press rolls, the preheating channel and one side of the furnace body, then entering the furnace body, winding and connecting the sheet on the outer peripheral surface of the die shaft, then adjusting the space between the two tensioning press rolls to adjust the tensioning force of the sheet, and finally covering the space between furnace covers above the furnace body;

2) Preheating: after the feeding is completed, a plurality of heating plates in the furnace body are started to preheat the die shaft to 110-120 ℃, and a plurality of heaters in the preheating channel are started to preheat the sheet to 110-120 ℃;

3) Starting: after the preheating is finished, starting the die shaft to rotate, starting the preheating mechanism and the feeding mechanism to do reciprocating motion along the axial direction of the die shaft, and presetting the winding layer number of the sheet;

4) Unidirectional winding: the preheating mechanism and the feeding mechanism are controlled to synchronously move from one end of the die shaft to the other end of the die shaft, and the sheet on the feeding mechanism rotates along with the die shaft and gradually winds on the peripheral surface of the die shaft in a spiral shape so as to realize unidirectional winding of the sheet;

5) Unidirectional reversing: when the sheet material is wound to the end part of the other end of the die shaft, the preheating mechanism and the feeding mechanism are controlled to synchronously turn over 180 degrees in the same direction so as to realize unidirectional reversing;

6) Reverse winding: the preheating mechanism and the feeding mechanism are controlled to synchronously move from the other end of the die shaft to one end of the die shaft, and the sheet on the feeding mechanism rotates along with the die shaft and gradually winds on the peripheral surface of the die shaft in a spiral manner so as to realize the reverse winding of the sheet;

7) Reverse reversing: when the sheet is wound to the end part of one end of the die shaft, the preheating mechanism and the feeding mechanism are controlled to synchronously turn over 180 degrees in the same direction so as to realize reverse reversing;

8) Repeating the steps 4) to 7) for a plurality of times until the number of the winding layers of the preset sheet material is reached, and ending winding;

9) Heating: during the steps 4) to 7), a plurality of heating plates in the furnace body are controlled to heat the die shaft to 170-180 ℃ so as to heat, cure and fix.

According to the technical scheme, the sheets passing through the preheating channel are preheated by the plurality of heaters arranged in the preheating channel, so that the sheets are softened and then wound on the die shaft, the wound sheet layers can be tightly combined, the problems of deformation, cracking, unsmooth bonding and the like of a pipeline caused by gaps are avoided, and the winding quality and the qualification rate of pipeline products are greatly improved. The invention has reasonable design and simple structure, and effectively solves the problems of deformation, cracking, untight adhesion and the like of the fiber pipeline caused by uneven heating.

Drawings

The invention will now be further elucidated with reference to the accompanying drawings:

FIG. 1 is a schematic view of a fiber pipe production apparatus according to the present invention;

FIG. 2 is a schematic diagram of the feed mechanism and preheating mechanism of the present invention;

FIG. 3 is a schematic view of a heating mechanism according to the present invention;

FIG. 4 is a schematic view of the structure of the air curtain mechanism of the present invention;

FIG. 5 is a schematic view of a mold shifting mechanism according to the present invention;

FIG. 6 is a schematic view of the structure of the feed roller compaction mechanism according to the present invention;

FIG. 7 is a schematic view of the installation of the feed roller mechanism of the present invention on a furnace cover;

FIG. 8 is a schematic perspective view of a demolding mechanism according to the present invention;

fig. 9 is a schematic view of the internal structure of the demolding mechanism of the present invention.

Detailed Description

As shown in one of fig. 1 to 9, the fiber pipeline production device of the invention comprises a die shaft 2 transversely arranged on a first frame 11 and rotating along the axial direction of the die shaft, a second frame 12 which is arranged at a distance from the first frame 11 is arranged on one side of the die shaft 2, a feeding mechanism 3 which reciprocates along the axial direction of the die shaft 2 and is used for sending sheets for producing fiber pipelines is arranged on the second frame 12, the sheets on the feeding mechanism 3 are connected with the die shaft 2 and gradually spirally wound on the outer peripheral surface of the die shaft 2 along with the rotation of the die shaft 2, a preheating mechanism 4 for preheating the sheets is arranged between the feeding mechanism 3 and the die shaft 2, the preheating mechanism 4 and the feeding mechanism 3 synchronously move and overturn in the same direction, the preheating mechanism 4 comprises a preheating box 41, a preheating channel 42 for penetrating the sheets from one side of the preheating box 41 and penetrating from the other side of the preheating box 41 is arranged on the preheating box 41, a plurality of heaters 43 for heating the sheets are arranged on at least the lower surface of the preheating channel 42, two tensioning compression rollers 44 are arranged in the preheating channel 42 on one side of the preheating box 41, and the interval between the two compression rollers 44 are arranged at the same time; the die shaft 2 is provided with a heating mechanism 5 on the periphery, the heating mechanism 5 comprises a furnace body 51 for accommodating the die shaft 2, a plurality of heating plates 52 for performing heating curing molding on the winding sheets on the die shaft 2 are arranged in the furnace body 51, and furnace covers 53 arranged at intervals are arranged above the furnace body 51.

As shown in fig. 2, the feeding mechanism 3 includes a turning shaft 31, a turning frame 32, and a feeding moving table 33 that reciprocates on the second frame 12, the turning shaft 31 is rotatably and horizontally arranged on the feeding moving table 33, one end of the turning shaft 31 is fixedly sleeved with a gear 34, the gear 34 is engaged with a rack 35 slidably arranged on the feeding moving table 33, the rack 35 is driven by a turning telescopic cylinder 36 to reciprocate, the other end of the turning shaft 31 is connected with one side of the turning frame 32, and a material roller 37 wound with a sheet is detachably arranged on the other side of the turning frame 32; the turning telescopic cylinder 36 stretches and contracts to drive the rack 35 to move, and the rack 35 drives the gear 34 and the turning shaft 31 to rotate to drive the turning frame 32 and the sheet to turn. The design makes the turning rack 35 driven by the expansion of the turning telescopic cylinder 36 to reciprocate so as to drive the gear 34 meshed with the rack 35 to rotate, thereby driving the turning shaft 31 fixedly connected with the gear 34 to rotate so as to drive the turning rack 32 to turn.

Further, the material turning frame 32 is connected to the other end of the turning shaft 31 through an angle adjusting mechanism 38 capable of adjusting the sheet sending angle, the angle adjusting mechanism 38 includes a locking member 381, a clamping block 382, a lug 383 protruding on one side of the material turning frame 32, and a fixing block 384 fixedly arranged on the other end of the turning shaft 31, and the fixing block 384, the lug 383 and the clamping block 382 are sequentially arranged from top to bottom and are connected through the locking member 381. The design allows the mounting angle of the turning frame 32 and the material roller 37 to be adjusted by adjusting the rotation angle of the lugs 383 relative to the fixed blocks 384, thereby adjusting the sending angle of the sheets.

As shown in fig. 3 or fig. 4, the furnace cover 53 is provided with a curtain mechanism 54 for closing a gap between the furnace cover 53 and the furnace body 51, the curtain mechanism 54 comprises two exhaust fans 541, the two exhaust fans 541 are axially arranged on two sides of the furnace cover 53 along the mold shaft 2, and air outlets of the two exhaust fans 541 are downward and form a curtain which is longitudinally blown into the furnace body 51; an air outlet channel 542 is arranged at the air outlet of at least one exhaust fan 541 in the two exhaust fans 541 and is connected with the two exhaust fans 541, and a linear air outlet with a downward air outlet is arranged along the length direction of the air outlet channel 542. The design of the air curtain mechanism 54 not only can utilize the air curtain to prevent the hot air in the furnace body 51 from diffusing outwards from the gap between the furnace cover 53 and the furnace body 51, effectively reduce heat loss and play a role in heat insulation, but also can blow the hot air to flow downwards along the inner arc surfaces at two sides of the furnace body 51, and the two hot air flows upwards along two sides of a fiber pipeline after meeting at the bottom of the furnace body 51 (as shown by arrow directions in fig. 4) respectively, and then is sucked by the fan 541 after converging at the top, so that hot air circulation is formed, a soaking effect is realized, the heating uniformity is improved, and the problems of deformation, cracking, non-tight adhesion and the like caused by uneven heating of the fiber pipeline are effectively avoided; the design of the air outlet channel 542 can form a continuous air curtain along the length direction, thereby effectively improving the heat insulation effect.

As shown in fig. 1, two sides of the feeding mechanism 3 are respectively provided with a pressing plate mechanism 6 for pressing the peripheral sheet material of the die shaft 2 to realize reverse winding of the sheet material, the pressing plate mechanism 6 comprises two pressing plates 61, the two pressing plates 61 are respectively installed on the second frame 12 corresponding to two ends of the die shaft 2, and the two pressing plates 61 are respectively driven to stretch and retract by a pressing plate stretching cylinder 62 to be close to or far away from the die shaft 2. The design makes it when the sheet material is twined and wrapped up to the end of mould axle 2, stretches out and presses on the peripheral sheet material of mould axle 2 through the flexible jar 62 control clamp plate 61 of clamp plate, then the sheet material on feed mechanism 3 is covered on the clamp plate 61 surface after turning over 180 to with the rotation of mould axle 2 in order to realize the reverse winding of sheet material.

As shown in fig. 5, the mold shaft 2 is driven to enter and exit the furnace body 51 by a mold moving mechanism 7, the mold moving mechanism 7 comprises two parallel support rails 71, the two support rails 71 are respectively arranged at two ends of the mold shaft 2, two ends of each support rail 71 are driven to lift by two mold moving telescopic cylinders 72, two ends of the mold shaft 2 are respectively movably connected to the two support rails 71 through a rolling member 73, and limiting blocks 74 arranged at two ends of the support rails 71 are used for limiting. The height difference of two ends of the corresponding support guide rail 71 is adjusted by controlling the telescopic length of the two movable mould telescopic cylinders 72 at each end of the mould shaft 2, so that the rolling elements 73 on the support guide rail 71 drive the mould shaft 2 to move from one end to the other end on the support guide rail 71 under the action of self gravity, the mould shaft 2 enters and exits the furnace, and the movement is stopped when the heights of the two ends of the support guide rail 71 are the same, and the fixation of the mould shaft 2 inside and outside the furnace is realized.

As shown in fig. 6 or fig. 7, a furnace cover 53 on the other side of the die shaft 2 is provided with a feeding roller mechanism 8 for taking in air when the sheet feeding is reversely pushed and removed, the feeding roller mechanism 8 comprises a roller 81, a roller shaft 82 and a roller frame 83, the roller frame 83 is connected with the furnace cover 53 in a sliding manner to reciprocate, the roller shaft 82 is rotatably arranged on the roller frame 83 in a penetrating manner, two ends of the roller shaft 82 are respectively connected with two ends of the roller 81 through a cantilever 84, and the roller 81 is driven by a driving mechanism 85 to rotate and lift around the roller shaft 82 so as to roller the air taken in when the sheet feeding is reversely pushed and removed on the other side of the die shaft 2; the driving mechanism 85 comprises a driven gear 851, a driving gear 852 and a driving motor 853, the driven gear 851 is fixedly sleeved on the rolling shaft 82, the driving gear 852 is in meshed connection with the driven gear 851, and the driving gear 852 is driven to rotate by the driving motor 853 fixed on the rolling frame 83. The feeding rolling mechanism 8 is designed to not only roll the air involved in the process of removing the sheet feeding by the rolling roller 81 on the die shaft 2 so as to reversely push and press the sheet feeding, so as to avoid the problems of deformation, cracking, untight adhesion and the like of the pipeline caused by air expansion in the heating and curing process of the fiber pipeline, but also increase the tightness characteristic of the winding and curing process of the fiber pipeline by utilizing the rolling action of the rolling roller 81 so as to improve the glossiness and quality of the pipe surface.

As shown in fig. 1, the furnace cover 53 is driven by a cover moving mechanism 9 to approach or separate from the furnace body 51, the cover moving mechanism 9 includes a sliding beam 91, two track beams 92, two lifting columns 93 and two support columns 94, the sliding beam 91 is fixed on the upper surface of the furnace cover 53 along the length direction of the furnace cover 53, two ends of the sliding beam 91 are respectively supported on the two track beams 92 in parallel, one ends of the two track beams 92 are respectively rotatably supported on the upper ends of the two support columns 94, and the other ends of the two track beams 92 are respectively driven to lift by the two lifting columns 93 so as to drive the sliding beam 91 and the furnace cover 53 to lift and move along the track beams 92; the two track beams 92 are hinged with a cover moving telescopic cylinder 95 for pushing and pulling the sliding beam 91. The cover moving mechanism 9 not only can drive the furnace cover 53 to lift to approach or separate from the furnace body 51, but also can adjust the inclination angle through the lifting of the track beam 92, so that the sliding beam 91 and the furnace cover 53 can move away from the upper part of the furnace body 51 along the track beam 92 under the action of self gravity and/or the cover moving telescopic cylinder 95, thereby being convenient for loading and unloading the die shaft 2.

Further, a lifting calender roll base mechanism (not shown in the figure) is arranged at the bottom of the furnace body 51, the calender roll base mechanism comprises a plurality of roll shafts supported at the bottom side of the mold shaft 2, and the plurality of roll shafts are driven to lift by a lifting chassis arranged below the furnace body 51 so as to adjust the distance between the roll shafts and the mold shaft 2.

Preferably, the cross section of the furnace body 51 is arc-shaped; the cross section of the furnace cover 53 is n-shaped. The design of the furnace body 51 not only can improve the heating uniformity of the fiber pipeline on the die shaft 2, but also can guide hot air to flow along the arc surface in the furnace body 51, thereby playing a role in induced air and improving the hot air circulation effect; the design of the furnace cover 53 can prevent the external diffusion of hot wind in the furnace body 51, effectively reduce heat loss and perform heat insulation on the two sides and the top of the furnace cover 53.

As shown in fig. 8 or fig. 9, the mold shaft 2 is formed by an inner shaft 21 rotating along the axial direction thereof, a plurality of arc plates 22 capable of being spliced together into a circular mold, and two or more demolding mechanisms for driving the plurality of arc plates 22 to mold or demolding, the demolding mechanism comprises a mounting plate 23 and a threaded shaft sleeve 24, the mounting plate 23 and the threaded shaft sleeve 24 are fixedly sleeved on the inner shaft 21, a nut 25 is connected to the threaded shaft sleeve 24 in a threaded manner, a plurality of wedge blocks 26 extending towards the mounting plate 23 are fixedly arranged on the peripheral wall of the nut 25, wedge faces with different inclination are arranged on any two adjacent wedge blocks 26, a plurality of abdicating holes 27 for the plurality of wedge blocks 26 to correspondingly pass through are arranged on the mounting plate 23, a plurality of supporting frames 28 capable of lifting are respectively arranged on one surface of the mounting plate 23 corresponding to the plurality of wedge blocks 26, the outer ends of the plurality of supporting frames 28 away from the wedge blocks 26 are respectively fixedly connected with the plurality of arc plates 22, and the inner ends of the plurality of supporting frames 28 are respectively supported on the wedge blocks 26 in a sliding manner; the inner shaft 21 drives the threaded shaft sleeve 24 to rotate positively and negatively, the nut 25 is driven to move, the wedge block 26 is far away from or near the mounting plate 23, the wedge block 26 drives the plurality of supporting frames 28 to lift or descend, and the plurality of supporting frames 28 drive the plurality of arc plates 22 to carry out die assembly or die stripping.

As shown in fig. 9, the supporting frame 28 includes a mounting block 281, a supporting rod 282 and two lifting rods 283, the mounting block 281 is fixed on a surface of the mounting plate 23, the middle parts of the two lifting rods 283 movably penetrate through holes formed in the mounting block 281, the outer ends of the two lifting rods 283 are respectively and vertically connected with the supporting rod 282, the two ends of the supporting rod 282 are respectively and fixedly connected with the inner walls of the corresponding arc-shaped plates 22, and the inner ends of the two lifting rods 283 are both in sliding connection with the wedge-shaped surfaces of the corresponding wedge-shaped blocks 26.

Further, the plurality of wedge blocks 26 are provided with a plurality of square-shaped track grooves 261, the wedge faces are arranged on the inner walls of the track grooves 261, a sliding rod 284 is connected in a sliding manner in the track grooves 261, and two ends of the sliding rod 284 are respectively connected with the inner ends of the two lifting rods 283.

The fiber pipeline production process of the invention is produced by applying the fiber pipeline production device of any one of the invention, and the production process comprises the following steps:

1) And (3) feeding: firstly, installing a die shaft 2 into a furnace body 51, installing a sheet for producing a fiber pipeline on a feeding mechanism 3, adjusting a preheating channel 42 of a preheating box 41 to be in the same direction with sheet feeding, sequentially drawing one end of the sheet on the feeding mechanism 3 to pass through a space between two tensioning compression rollers 44, the preheating channel 42 and one side of the furnace body 51, then entering the furnace body 51, winding and connecting the sheet into the peripheral surface of the die shaft 2, then adjusting the space between the two tensioning compression rollers 44 to adjust the sheet tensioning force, and finally covering a furnace cover 53 at a space above the furnace body 51;

2) Preheating: after the feeding is completed, a plurality of heating plates 52 in a furnace body 51 are started to preheat the die shaft 2 to 110-120 ℃, and a plurality of heaters 43 in a preheating channel 42 are started to preheat the sheet to 110-120 ℃;

3) Starting: after the preheating is finished, the die shaft 2 is started to rotate, the preheating mechanism 4 and the feeding mechanism 3 are started to do reciprocating motion along the axial direction of the die shaft 2, and the number of winding layers of the sheet is preset;

4) Unidirectional winding: the preheating mechanism 4 and the feeding mechanism 3 are controlled to synchronously move from one end of the die shaft 2 to the other end of the die shaft 2, and the sheet on the feeding mechanism 3 gradually winds on the peripheral surface of the die shaft 2 along a spiral shape along with the rotation of the die shaft 2 so as to realize unidirectional winding of the sheet;

5) Unidirectional reversing: when the sheet is wound to the end part of the other end of the die shaft 2, the preheating mechanism 4 and the feeding mechanism 3 are controlled to synchronously and equidirectionally overturn for 180 degrees so as to realize unidirectional reversing;

6) Reverse winding: the preheating mechanism 4 and the feeding mechanism 3 are controlled to synchronously move from the other end of the die shaft 2 to one end of the die shaft 2, and the sheet on the feeding mechanism 3 is gradually spirally wound on the outer peripheral surface of the die shaft 2 along with the rotation of the die shaft 2 so as to realize the reverse winding of the sheet;

7) Reverse reversing: when the sheet is wound to the end part of one end of the die shaft 2, the preheating mechanism 4 and the feeding mechanism 3 are controlled to synchronously and equidirectionally overturn for 180 degrees so as to realize reverse reversing;

9) Heating: during steps 4) to 7), a plurality of heating plates 52 in the furnace body 51 are controlled to heat the mold shaft 2 to 170-180 ℃ so as to heat, cure and set.

According to the technical scheme, the sheets passing through the preheating channel 42 are preheated by the plurality of heaters 43 arranged in the preheating channel 42, so that the sheets are wound on the die shaft 2 after being softened, the wound sheets can be tightly combined, the problems of deformation, cracking, unsmooth bonding and the like of a pipeline caused by gaps are avoided, and the winding quality and the qualification rate of pipeline products are greatly improved. The invention has reasonable design and simple structure, and effectively solves the problems of deformation, cracking, untight adhesion and the like of the fiber pipeline caused by uneven heating.

The above description should not be taken as limiting the scope of the invention in any way.

Claims

1. The fiber pipeline production device comprises a die shaft transversely arranged on a first frame and rotating along the axial direction of the die shaft, a second frame which is arranged at a distance from the first frame is arranged on one side of the die shaft, a feeding mechanism which reciprocates along the axial direction of the die shaft and is used for sending sheets for producing fiber pipelines is arranged on the second frame, the sheets on the feeding mechanism are connected with the die shaft and gradually wound on the outer peripheral surface of the die shaft along the spiral shape along with the rotation of the die shaft, and the fiber pipeline production device is characterized in that: a preheating mechanism for preheating the sheet is arranged between the feeding mechanism and the die shaft, the preheating mechanism and the feeding mechanism synchronously move in the same direction and turn over, the preheating mechanism comprises a preheating box, a preheating channel for the sheet to penetrate from one side of the preheating box and penetrate from the other side of the preheating box is arranged on the preheating box, a plurality of heaters for heating the sheet are arranged on at least the lower surface of the preheating channel, two tensioning press rollers are arranged in the preheating channel on one side of the preheating box, and the two tensioning press rollers are arranged at an upper-lower interval and have adjustable intervals; the die comprises a die shaft, and is characterized in that a heating mechanism is arranged on the periphery of the die shaft and comprises a furnace body for accommodating the die shaft, a plurality of heating plates for heating, solidifying and forming a winding sheet on the die shaft are arranged in the furnace body, and furnace covers arranged at intervals are arranged above the furnace body;

the feeding mechanism comprises a turning shaft, a turning rack and a feeding moving table which performs reciprocating motion, wherein the turning shaft is rotatably and transversely arranged on the feeding moving table, one end of the turning shaft is fixedly sleeved with a gear, the gear is in meshed connection with a rack which is slidably arranged on the feeding moving table, the rack is driven by a turning telescopic cylinder to perform reciprocating motion, the other end of the turning shaft is connected with one side of the turning rack, and a material roller which is wound with a sheet is detachably arranged on the other side of the turning rack; the turning telescopic cylinder stretches to drive the rack to move, and the rack drives the gear and the turning shaft to rotate to drive the turning rack and the sheet to turn;

the furnace cover on the other side of the mold shaft is provided with a feeding rolling mechanism for rolling in air when the sheet feeding is removed by reverse pushing, the feeding rolling mechanism comprises a rolling roller, a rolling shaft and a rolling frame, the rolling frame is connected to the furnace cover in a sliding manner to do reciprocating motion, the rolling shaft is rotatably arranged on the rolling frame in a penetrating manner, two ends of the rolling shaft are respectively connected with two ends of the rolling roller through a cantilever, and the rolling roller is driven by a driving mechanism to rotate and lift around the rolling shaft so as to roll the air which is rolled in when the sheet feeding is removed by reverse pushing on the other side of the mold shaft; the driving mechanism comprises a driven gear, a driving gear and a driving motor, the driven gear is fixedly sleeved on the rolling shaft, the driving gear is connected with the driven gear in a meshed manner, and the driving gear is driven to rotate by the driving motor fixed on the rolling frame;

the furnace cover is provided with an air curtain mechanism for closing a gap between the furnace cover and the furnace body, the air curtain mechanism comprises two exhaust fans, the two exhaust fans are axially arranged on two sides of the furnace cover along a mold shaft, and air outlets of the two exhaust fans are downwards arranged and form an air curtain which is longitudinally blown into the furnace body; an air outlet channel is arranged at the air outlet of at least one of the two exhaust fans and is connected with the air outlet channel, and a linear air outlet with an air outlet facing downwards is arranged along the length direction of the air outlet channel;

the die shaft consists of an inner shaft which rotates along the axial direction of the die shaft, a plurality of arc plates which can be spliced together to form a circular die and more than two demoulding mechanisms which are used for driving the plurality of arc plates to be clamped or demoulded, the demoulding mechanisms comprise a mounting plate and a threaded shaft sleeve, the mounting plate and the threaded shaft sleeve are fixedly sleeved on the inner shaft, a nut is connected to the threaded shaft sleeve in a threaded manner, a plurality of wedge blocks extending towards the direction of the mounting plate are fixedly arranged on the peripheral wall of the nut, wedge faces with different inclination are arranged on any two adjacent wedge blocks, a plurality of abdicating holes for the plurality of wedge blocks to correspondingly pass through are arranged on the mounting plate, a plurality of supporting frames which can be lifted are respectively arranged on one surface of the mounting plate and correspond to the plurality of wedge blocks, the outer ends of the plurality of supporting frames far away from the wedge blocks are fixedly connected with the plurality of arc plates respectively, and the inner ends of the plurality of supporting frames are respectively and slidably supported on the wedge faces of the plurality of wedge blocks; the inner shaft drives the threaded shaft sleeve to rotate positively and negatively, the nut is driven to move and the wedge block is far away from or close to the mounting plate, the wedge block drives the plurality of support frames to rise or descend, and the plurality of support frames drive the plurality of arc plates to carry out die assembly or die stripping.

2. The fiber tube apparatus of claim 1, wherein: the material turning frame is connected to the other end of the turning shaft through an angle adjusting mechanism capable of adjusting the sheet sending angle, the angle adjusting mechanism comprises a locking piece, a clamping block, a lug protruding from one side of the material turning frame and a fixing block fixedly arranged at the other end of the turning shaft, and the fixing block, the lug and the clamping block are sequentially arranged from top to bottom and are connected through the locking piece.

3. The fiber tube apparatus of claim 1, wherein: the mould shaft drives the furnace body to enter and exit by a mould moving mechanism, the mould moving mechanism comprises two support guide rails which are arranged in parallel, the two support guide rails are respectively arranged at two ends of the mould shaft, the two ends of each support guide rail are driven to lift by two mould moving telescopic cylinders, and the two ends of the mould shaft are respectively movably connected to the two support guide rails through a rolling piece and are limited by limiting blocks arranged at the two ends of the support guide rails.

4. The fiber tube apparatus of claim 1, wherein: the furnace cover is driven by a cover moving mechanism to approach or depart from the furnace body, the cover moving mechanism comprises a sliding beam, two track beams, two lifting columns and two support columns, the sliding beam is fixed on the upper surface of the furnace cover along the length direction of the furnace cover, two ends of the sliding beam are respectively and slidably supported on the two track beams which are arranged in parallel, one ends of the two track beams are respectively and rotatably supported at the upper ends of the two support columns, and the other ends of the two track beams are respectively driven by the two lifting columns to lift so as to drive the sliding beam and the furnace cover to lift and move along the track beams; and the two track beams are hinged with a cover moving telescopic cylinder for pushing and pulling the sliding beam.

5. The fiber tube apparatus of claim 1, wherein: the two sides of the feeding mechanism are respectively provided with a pressing plate mechanism for pressing the peripheral sheet of the die shaft to realize reverse winding of the sheet, the pressing plate mechanism comprises two pressing plates, the two pressing plates are respectively arranged on the second frame corresponding to the two ends of the die shaft, and the two pressing plates are respectively driven to stretch and retract by a pressing plate stretching cylinder to be close to or far away from the die shaft; the bottom of the furnace body is provided with a lifting calendaring roller collet mechanism, the calendaring roller collet mechanism comprises a plurality of roller shafts supported on the bottom side of a mold shaft, and the roller shafts are driven to lift by a lifting chassis arranged below the furnace body so as to adjust the distance between the roller shafts and the mold shaft.

6. A fiber pipe production process, using the fiber pipe production device according to any one of claims 1 to 5, characterized in that: the production process comprises the following steps: