CN202021807U - Rail device for plastic film double-direction synchronous stretching equipment - Google Patents
Rail device for plastic film double-direction synchronous stretching equipment Download PDFInfo
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- CN202021807U CN202021807U CN2010206865619U CN201020686561U CN202021807U CN 202021807 U CN202021807 U CN 202021807U CN 2010206865619 U CN2010206865619 U CN 2010206865619U CN 201020686561 U CN201020686561 U CN 201020686561U CN 202021807 U CN202021807 U CN 202021807U
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Abstract
A rail device for plastic film double-direction stretching equipment comprises two circular rails. Each circular rail includes a preheating section, a stretching section, a molding section and a stroke-returning section. The preheating section, the stretching section, the molding section and the stroke-returning section are sequentially connected. The preheating section, the stretching section and the molding section of one circular rail respectively corresponds to the preheating section, the stretching section and the molding section of the other circular rail, and the distance between the stretching sections of the two circular rails grows larger from the front to the back. The rail device for the plastic film double-direction synchronous stretching equipment has the advantages that each circular section is provided with an inside rail and an outside rail. The distance between the inside rail and the outside rail grows smaller from the front to the back in the stretching section of the circular rail. The plastic film double-direction synchronous stretching equipment composed of the rail device and two transmission chain clamps can realize synchronous stretching of the plastic film in both the transverse direction and the longitudinal direction, is simple in structure, reliable to operate, low in energy consumption and capable of producing plastic films with good performance.
Description
Technical field
The utility model relates to the plastic tensile former, specifically, relates to the rail set of plastic sheeting bi-directional synchronization stretcher.
Background technology
Biaxial tension is a kind of comparatively advanced plastic film production process, and the plastic sheeting that obtains by biaxial tension has littler thickness and more excellent performance.Particularly, along with expanding economy, growing field needs the optical-grade plastic film (its thickness is generally 10-300 μ m) or the super-thin plastic film (its thickness is usually less than 1 μ m) of high strength, high insulating property, and these plastic sheetings generally can only make by stretch processes.
The employing stretch processes is produced plastic sheeting, earlier thicker plastic sheeting is carried out preheating usually, longitudinally stretches with horizontal both direction then, finalizes the design again, obtains the littler plastic sheeting of thickness.Existing stretch processes mostly is two-way asynchronous stretching greatly, that is to say, biaxial orientation process is carried out in two steps: utilize the roller of certain speed ratio that plastic sheeting is carried out longitudinal stretching earlier; Then with the both sides clamp clamps of plastic sheeting, and the anchor clamps on both sides are advanced (usually respectively along two tracks, above-mentioned track adopts circular orbit, circular orbit comprises preheating section, stretch section, typing section and backhaul section, preheating section, stretch section, typing section and backhaul section are end to end successively, the preheating section of one circular orbit, stretch section and typing section are corresponding one by one with preheating section, stretch section and the typing fragment position of another circular orbit, and the distance between the stretch section of two circular orbits increases gradually from A-P; The anchor clamps on plastic sheeting both sides are installed in (driving chain and anchor clamps are formed the driving-chain folder) on two driving chains respectively, and two driving chains are advanced along the circulation of two circular orbits respectively, and the anchor clamps on both sides are advanced along two circular orbits respectively; Anchor clamps pass through preheating section, stretch section, typing section and backhaul section successively, return preheating section, so circulation), in the cross directional stretch district (i.e. zone between the stretch section of two tracks), along with the distance between two tracks increases gradually, thereby the anchor clamps on both sides are increased gradually at the traveling process middle distance, realize cross directional stretch.The shortcoming of two-way asynchronous stretching is: need before (1) longitudinal stretching the plastic sheeting preheating, need the plastic sheeting cooling and shaping after finishing longitudinal stretching, equally, need before the cross directional stretch the plastic sheeting preheating, finishing behind the cross directional stretch needs the plastic sheeting cooling and shaping, and longitudinal stretching and cross directional stretch need a drive unit separately, thereby the device structure complexity, cost height, and energy consumption height; (2) performance of plastic film of Sheng Chaning is still not ideal enough.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of rail set of plastic sheeting bi-directional synchronization stretcher, adopt the plastic sheeting bi-directional synchronization stretcher of this rail set can realize the vertical and horizontal synchro-draw of plastic sheeting, simple in structure, energy consumption is low, and the performance of plastic film of producing is good.The technical scheme that adopts is as follows:
A kind of rail set of plastic sheeting bi-directional synchronization stretcher, comprise two circular orbits, circular orbit comprises preheating section, stretch section, typing section and backhaul section, preheating section, stretch section, typing section and backhaul section are end to end successively, the preheating section of one circular orbit, stretch section and typing section are corresponding one by one with preheating section, stretch section and the typing fragment position of another circular orbit, distance between the stretch section of two circular orbits increases gradually from A-P, it is characterized in that: siding track and outer siding track in described circular orbit is provided with; At the stretch section of circular orbit, the distance between interior siding track and the outer siding track reduces gradually from A-P.
Adopt the plastic sheeting bi-directional synchronization stretcher of this rail set also to comprise two driving-chains folder, two driving-chains folder cooperates with two circular orbits respectively; The driving-chain folder comprises a plurality of connecting rods, a plurality of anchor clamps and a plurality of drive block, anchor clamps are installed on the outer siding track by roller, anchor clamps are provided with first rotating shaft, drive block is installed on the interior siding track by roller, drive block is provided with second rotating shaft, connecting rod one end and first rotating shaft are rotatably connected, and the connecting rod other end and second rotating shaft are rotatably connected, and per four adjacent connecting rods all form M shape structure.In the above-mentioned M shape structure, the upper extreme point place of M is first rotating shaft (anchor clamps on the corresponding outer siding track), the lower extreme point place of M is second rotating shaft (drive block in corresponding on the siding track), by each connecting rod anchor clamps, drive block are connected, form by be formed by connecting the in regular turn gypsy chain folder of (last connecting rod connects the most previous drive block) of " drive block → connecting rod → anchor clamps → connecting rod → next drive block → connecting rod → next anchor clamps → connecting rod → next drive block " again circulation.On a driving-chain folder, drive block is identical with anchor clamps quantity, and the quantity of connecting rod is the twice of anchor clamps.
On the above-mentioned driving-chain folder, adjacent two anchor clamps are connected with same drive block by a connecting rod respectively, between these two connecting rods an angle α are arranged.When angle α became big, the distance between adjacent two anchor clamps increased; When angle α diminished, the distance between adjacent two anchor clamps reduced.When a certain section of driving-chain folder moves to stretch section, because the distance between interior siding track and the outer siding track reduces gradually from A-P, it is short that M shape structure becomes, make above-mentioned angle α increase gradually, like this, distance between two adjacent two anchor clamps that connecting rod connected corresponding with this angle α also increases gradually, realizes the longitudinal stretching of gradually changeable.
When a certain section of driving-chain folder moves to stretch section, when carrying out longitudinal stretching, because the distance between the stretch section of two circular orbits increases gradually from A-P, distance between the outer siding track of two circular orbit stretch sections obviously also increases from A-P gradually, make certain anchor clamps on the driving-chain folder go up corresponding anchor clamps jointly when A-P moves with another driving-chain folder, distance between these two anchor clamps increases gradually, realizes cross directional stretch.Be not difficult to find out, when a certain section of driving-chain folder moves to stretch section, carry out longitudinal stretching and cross directional stretch synchronously.
In the above-mentioned circular orbit, preheating section, stretch section, typing section and backhaul section are end to end successively, that is to say, the end of preheating section connects the front end of stretch section, the end of stretch section connects the front end of typing section, the end of typing section connects the front end of backhaul section, and the end of backhaul section connects the front end of preheating section, thereby forms circular orbit.
Usually, the preheating section of two circular orbits is parallel to each other, and the typing section of two circular orbits also is parallel to each other, and therefore, in preheating section and typing section, plastic sheeting is not carried out cross directional stretch.
Usually, each position at the preheating section of above-mentioned circular orbit, distance between interior siding track and the outer siding track is consistent, that is to say, the interior siding track of preheating section parallels with outer siding track, operate in distance between adjacent two anchor clamps on the preheating section and remain constantly, therefore plastic sheeting is not carried out longitudinal stretching at preheating section.And the distance on the preheating section between interior siding track and the outer siding track equals the distance between interior siding track of stretch section front end and the outer siding track, and the terminal junction with the stretch section front end of preheating section is seamlessly transitted.
Usually, each position in the typing section of above-mentioned circular orbit, distance between interior siding track and the outer siding track is consistent, that is to say, the interior siding track of typing section parallels with outer siding track, operate in distance between adjacent two anchor clamps on the typing section and remain constantly, therefore plastic sheeting is not carried out longitudinal stretching in the typing section.And the distance in the typing section goes up between siding track and the outer siding track equals the distance between interior siding track of stretch section end and the outer siding track, and the terminal junction with typing section front end of stretch section is seamlessly transitted.
Usually, the backhaul section of above-mentioned circular orbit should have one and recover segment, distance in recovering on the segment between siding track and the outer siding track increases gradually from A-P, make and press from both sides after the backhaul section at a stretch section and a typing section driving-chain that trails, when arriving the preheating section front end, can revert to original contraction state.In a kind of concrete scheme, the recovery segment is positioned at the front portion of backhaul section, distance in the recovery segment front end between siding track and the outer siding track equals the distance between upward interior siding track of the section of typing and the outer siding track, distance in distance in the recovery segment end between siding track and the outer siding track equals on the preheating section between siding track and the outer siding track, and backhaul section remainder (it is terminal to the part between the whole backhaul section end from recovering segment to be the backhaul section) is gone up the distance between the siding track and outer siding track in each position and is equal to the distance between the interior siding track and outer siding track on the preheating section, like this, siding track parallels with outer siding track on the major part of backhaul section, can reduce its resistance, can cut down the consumption of energy the driving-chain folder.
In order to realize the flexible adjustment of cross directional stretch ratio, to adapt to the production needs of different plastic sheetings, in a preferred version, the end of preferred preheating section and the front end of stretch section are rotatably connected, the end of stretch section is rotatably connected with the front end of typing section, by the angle between the stretch section of regulating two circular orbits, can adjust the distance between the stretch section end of two circular orbits and the ratio of the distance between its front end, thereby realize the adjustment of cross directional stretch ratio; In another preferred version, preferred above-mentioned plastic sheeting bi-directional synchronization stretcher also comprises base and two movable stands, base is provided with cross slide way, two movable stands are installed on the cross slide way and are slidingly matched or roll with cross slide way and cooperate, and two circular orbits are installed in respectively on two movable stands; Above-mentioned laterally being meant and the perpendicular direction of the direction of advance of plastic sheeting, under the situation that the preheating section of two circular orbits is parallel to each other, cross slide way and preheating section are perpendicular; Two movable stands can relatively move along cross slide way, to regulate the distance between two circular orbits, distance between the stretch section end of distance between the stretch section front end of two circular orbits and two circular orbits is changed simultaneously, thereby adjust the distance between the stretch section end of two circular orbits and the ratio of the distance between its front end, realize the adjustment of cross directional stretch ratio.Above-mentioned two kinds of preferred versions can adopt separately, also can adopt simultaneously, that is to say, the means of adjusting the cross directional stretch ratio are: regulate the angle between the stretch section of two circular orbits, and/or regulate distance between two circular orbits.
In a kind of preferred scheme, the end of above-mentioned preheating section and the front end of stretch section are rotatably connected, the end of stretch section is rotatably connected with the front end of typing section, the backhaul section is divided into leading portion, interlude and back segment, the front end of the end of backhaul section leading portion and backhaul section interlude is rotatably connected, and the front end of the end of backhaul section interlude and backhaul section back segment is rotatably connected; The rail set of described plastic sheeting bi-directional synchronization stretcher also comprises movable stand behind base, two preceding movable stands and two, the preheating section of one circular orbit and backhaul section back segment are installed on the preceding movable stand, the preheating section of another circular orbit and backhaul section back segment are installed on another preceding movable stand, the typing section of one circular orbit and backhaul section leading portion are installed on the back movable stand, and the typing section of another circular orbit and backhaul section leading portion are installed on another back movable stand.Preferred base is provided with cross slide way, and two preceding movable stands are installed on the cross slide way and are slidingly matched or roll with cross slide way and cooperate, and the bottom of movable stand is provided with wheel after two; Perhaps movable stand is installed on the cross slide way and is slidingly matched or rolls with cross slide way and cooperates after two, and the bottom of two preceding movable stands is provided with wheel.Above-mentioned laterally being meant and the perpendicular direction of the direction of advance of plastic sheeting.Movable stand can relatively move in the horizontal before two, with the distance between the stretch section front end of regulating two circular orbits; Two back movable stands can relatively move in the horizontal, with the distance between the stretch section end of regulating two circular orbits; Because the distance between the distance between the stretch section front end of two circular orbits and the stretch section end of two circular orbits can be regulated independently of each other, therefore the angle between the stretch section of two circular orbits also can be regulated.By the distance between the stretch section end of distance between the stretch section front end of regulating two circular orbits and two circular orbits (should lock two preceding movable stands and two position of movable stands afterwards after finishing adjusting), can adjust the distance between the stretch section end of two circular orbits and the ratio of the distance between its front end, realize the adjustment of cross directional stretch ratio, the adjustable extent of cross directional stretch ratio is 1: 2-1: 10.More preferably above-mentioned backhaul section interlude and stretch section equal in length and be parallel to each other like this, limit a parallelogram, the adjustment of the circular orbit of being more convenient for by the two ends of backhaul section interlude and the two ends of stretch section.
In order to realize the flexible adjustment of longitudinal stretching ratio, to adapt to the production needs of different plastic sheetings, the position of interior siding track and/or outer siding track is adjustable on the preferred circular orbit, and particularly the position of interior siding track and/or outer siding track is adjustable on the stretch section of circular orbit.In a kind of concrete scheme, the fixed-site of siding track and outer siding track on the preheating section, the position of interior siding track and/or outer siding track is adjustable on the stretch section, and section position of going up interior siding track and/or outer siding track of finalizing the design is adjustable, equally, the position of siding track and/or outer siding track is adjustable on the recovery segment in the backhaul section; In fact, the position of siding track and/or outer siding track in the key of adjusting the longitudinal stretching ratio is to regulate on the stretch section (can be regulated the position of interior siding track on the stretch section separately or regulate the position of outer siding track on the stretch section separately, also can all regulate) the position of outer siding track on the position of siding track on the stretch section and the stretch section, (change the distance between interior siding track of stretch section end and the outer siding track during adjusting with the distance that changes between stretch section posterior medial rail and the outer siding track, and the distance between interior siding track of stretch section front end and the outer siding track remains unchanged, like this, except the stretch section front end, distance on each position of stretch section between siding track and the outer siding track all can change), change longitudinal stretching thus than (adjustable extent of longitudinal stretching ratio is 1: 2-1: 8), and the typing section, siding track is adjusted with the position of outer siding track on the recovery segment, just the accommodation of carrying out with the position adjustment of outer siding track at interior siding track on the stretch section.
In a kind of scheme, above-mentioned interior siding track and outer siding track are the guiding raised line; Anchor clamps are provided with two rollers, and two rollers on the anchor clamps cooperate with the two sides of outer siding track respectively; Drive block is provided with two rollers, and two rollers on the drive block cooperate with the two sides of interior siding track respectively.In this case, for seamlessly transitting of siding track in the junction that is implemented in adjacent each section on the circular orbit and outer siding track, usually can be in the junction of adjacent each section, the underframe of siding track and outer siding track is made up of some joint base plates in being used to install, adjacent two joint base plates are rotatably connected, like this, and when interior siding track and the bending of outer siding track, adjacent two joint base plates relatively rotate certain angle, and each is more even to the angle of adjacent two joint base plates rotations.
In another kind of scheme, above-mentioned interior siding track and outer siding track are gathering sill; Anchor clamps are provided with a roller, and the roller on the anchor clamps is in the outer siding track; Drive block is provided with a roller, and the roller on the drive block is in the interior siding track.
The plastic sheeting bi-directional synchronization stretcher that the utility model and two driving-chains folder are formed can be realized the vertical and horizontal synchro-draw of plastic sheeting, simple in structure, reliable, energy consumption low (driving energy consumption only is the 85-90% of two-way asynchronous stretcher), and the performance of plastic film of producing is good.The utility model is applicable to the plastic sheeting of various materials, as BOPP, BOPE, POPET, OPS, BOPA, polyimide, COC, PMMA, PC etc.The thickness of the optical-grade plastic film of the utility model production is generally 10-300 μ m, and the thickness of the super-thin plastic film of production is usually less than 1 μ m.
Description of drawings
Fig. 1 is the structural representation (vertical view) of the utility model preferred embodiment;
Fig. 2 adopts the rail set of Fig. 1 and the structural representation of the plastic sheeting bi-directional synchronization stretcher that two driving-chains folder constitutes;
Fig. 3 is the enlarged drawing of A part among Fig. 2;
Fig. 4 is the B-B cutaway view (part) of Fig. 2.
The specific embodiment
As shown in Figure 1, the rail set of this plastic sheeting bi-directional synchronization stretcher comprises two circular orbits 1; Circular orbit 1 comprises preheating section 11, stretch section 12, typing section 13 and backhaul section 14, preheating section 11, stretch section 12, typing section 13 and backhaul section 14 is end to end successively (that is to say, the end of preheating section 11 connects the front end of stretch section 12, the end of stretch section 12 connects the front end of typing section 13, the end of typing section 13 connects the front end of backhaul section 14, the end of backhaul section 14 connects the front end of preheating section 11, thereby form circular orbit 1), the preheating section 11 of one circular orbit 1, the preheating section 11 of stretch section 12 and typing section 13 and another circular orbit 1, stretch section 12 and typing section 13 positions are corresponding one by one, and the distance between the stretch section 12 of two circular orbits 1 increases gradually from A-P.Siding track 15 and outer siding track 16 in circular orbit 1 is provided with, in the present embodiment, interior siding track 15 and outer siding track 16 are the guiding raised line.At the stretch section 12 of circular orbit 1, the distance between interior siding track 15 and the outer siding track 16 reduces gradually from A-P.
The preheating section 11 of two circular orbits 1 is parallel to each other, and the typing section 13 of two circular orbits 1 also is parallel to each other.At each position of the preheating section 11 of circular orbit 1, the distance between interior siding track 15 and the outer siding track 16 is consistent, and that is to say, the interior siding track 15 of preheating section 11 parallels with outer siding track 16; And the distance on the preheating section 11 between siding track 15 and the outer siding track 16 equals the distance between interior siding track 15 of stretch section 12 front ends and the outer siding track 16.At each position of the typing section 13 of circular orbit 1, the distance between interior siding track 15 and the outer siding track 16 is consistent, and that is to say, the interior siding track 15 of typing section 13 parallels with outer siding track 16; And the distance on the typing section 13 between siding track 15 and the outer siding track 16 equals the distance between stretch section 12 terminal interior siding tracks 15 and the outer siding track 16.
Usually the backhaul section 14 of circular orbit 1 has a recovery segment 17; distance in recovering on the segment 17 between siding track 15 and the outer siding track 16 increases gradually from A-P; make and press from both sides 2 after backhaul section 14 at a stretch section 12 and typing section 13 driving-chains that trail; when arriving preheating section 11 front ends, can revert to original contraction state.
In the present embodiment, the front end of the end of preheating section 11 and stretch section 12 is rotatably connected, the end of stretch section 12 is rotatably connected with the front end of typing section 13, backhaul section 14 is divided into leading portion 141 (recover segment 17 and be in backhaul section leading portion 141), interlude 142 and back segment 143, the front end of the end of backhaul section leading portion 141 and backhaul section interlude 142 is rotatably connected, and the front end of the end of backhaul section interlude 142 and backhaul section back segment 143 is rotatably connected; Above-mentioned rail set also comprises movable stand 5 behind base 3, two preceding movable stands 4 and two, the preheating section 11 of one circular orbit 1 and backhaul section back segment 143 are installed on the preceding movable stand 4, the preheating section 11 of another circular orbit 1 and backhaul section back segment 143 are installed on another preceding movable stand 4, the typing section 13 of one circular orbit 1 and backhaul section leading portion 141 are installed on the back movable stand 5, and the typing section 13 of another circular orbit 1 and backhaul section leading portion 141 are installed on another back movable stand 5.Usually make backhaul section interlude 142 with stretch section 12 equal in length and be parallel to each other, like this, limit a parallelogram by the two ends of backhaul section interlude 142 and the two ends of stretch section 12.
The position of siding track 15 and/or outer siding track 16 is adjustable on the stretch section 12 of circular orbit 1.In the present embodiment, on the preheating section 11 in the fixed-site of siding track 15 and outer siding track 16, on the stretch section 12 in the adjustable and fixed-site of outer siding track 16 in siding track 15 positions, the adjustable and fixed-site of outer siding track 16 in interior siding track 15 positions in the typing sections 13.
As shown in Figure 2, this plastic sheeting bi-directional synchronization stretcher comprises that above-mentioned rail set and two driving-chains folder, 2, two driving-chains folder 2 cooperate with two circular orbits 1 respectively.
With reference to figure 3 and Fig. 4, driving-chain folder 2 comprises a plurality of connecting rods 21, a plurality of anchor clamps 22 and a plurality of drive block 23, anchor clamps 22 are installed on the outer siding track 16 by roller 24, anchor clamps 22 are provided with first rotating shaft 25, on the siding track 15, drive block 23 was provided with second rotating shaft 27 in drive block 23 was installed in by roller 26, and connecting rod 21 1 ends and first rotating shaft 25 are rotatably connected, connecting rod 21 other ends and second rotating shaft 27 are rotatably connected, and per four adjacent connecting rods 21 all form M shape structure.Adjacent two anchor clamps 22 are connected with same drive block 23 by a connecting rod 21 respectively on the driving-chain folder 2, between these two connecting rods 21 an angle α are arranged.In the present embodiment, anchor clamps 22 are provided with two rollers 24, and two rollers 24 on the anchor clamps 22 cooperate with the two sides of outer siding track 16 respectively; Drive block 23 is provided with two rollers 26, and two rollers 26 on the drive block 23 cooperate with the two sides of interior siding track 15 respectively.
In the above-mentioned M shape structure, the upper extreme point place of M is first rotating shaft 25 (anchor clamps 22 on the corresponding outer siding track 16), and the lower extreme point place of M is second rotating shaft 27 (drive block 23 in corresponding on the siding track 15).By each connecting rod 21 anchor clamps 22, drive block 23 are connected, form by be formed by connecting the in regular turn gypsy chain folder 2 of (last connecting rod 21 connects the most previous drive block 23) of " drive block 23 → connecting rod 21 → anchor clamps 22 → connecting rod 21 → next drive block 23 → connecting rod 21 → next anchor clamps 22 → connecting rod 21 → next drive block 23 " again circulation.On a driving-chain folder 2, drive block 23 is identical with anchor clamps 22 quantity, and the quantity of connecting rod 21 is twices of anchor clamps 22.
Being connected between connecting rod 21 two ends and first rotating shaft 25, second rotating shaft 27 adopted following structure in the present embodiment: connecting rod 21 1 ends are provided with first manhole, first rotating shaft 25 is in first manhole, connecting rod 21 other ends are provided with second manhole, and second rotating shaft 27 is in second manhole.In addition, being connected also between connecting rod two ends and first rotating shaft, second rotating shaft can be adopted following structure: connecting rod one end is connected with first rotating shaft by bearing, and the connecting rod other end is connected with second rotating shaft by bearing; Perhaps, connecting rod one end is provided with first cylindrical sleeve, and first rotating shaft is in first cylindrical sleeve, and the connecting rod other end is provided with second cylindrical sleeve, and second rotating shaft is in second cylindrical sleeve.
In the position of preheating section 11 front end correspondences and typing section 13 terminal corresponding positions be equipped with the clamping structure of opening that control anchor clamps 22 open.Above-mentioned anchor clamps 22, open clamping structure and can adopt existing structure, be not described in detail at this.
Above-mentioned driving-chain folder 2 adopts driven wheel 6 to drive, and four corners at circular orbit 1 in the present embodiment are provided with driven wheel 6, and each driven wheel 6 applies driving force to driving-chain folder 2 synchronously.
Brief description is the operation principle of this plastic sheeting bi-directional synchronization stretcher once:
On the both sides of clamping plastic sheeting respectively of preheating section 11, two driving-chains folder 2, plastic sheeting is heated to suitable temperature;
When driving-chain folder 2 parts that accompany plastic sheeting move to stretch section 12, because the distance between interior siding track 15 and the outer siding track 16 reduces gradually from A-P, it is short that M shape structure becomes, make angle α increase gradually, like this, distance between adjacent two anchor clamps 22 that two connecting rods 21 corresponding with this angle α are connected also increases gradually, realizes the longitudinal stretching of gradually changeable; When carrying out longitudinal stretching, because the distance between the stretch section 12 of two circular orbits 1 increases gradually from A-P, distance between the outer siding track 16 of two circular orbit stretch sections 12 obviously also increases from A-P gradually, make certain anchor clamps 22 on the driving-chain folder 2 press from both sides anchor clamps 22 corresponding on 2 jointly when A-P moves with another driving-chain, distance between these two anchor clamps 22 increases gradually, realizes cross directional stretch.
Then, driving-chain folder 2 plastic sheetings that will finish biaxial tension are delivered to typing section 13; When driving-chain folder 2 accompanies anchor clamps 22 arrival typing sections 13 ends of plastic sheeting, to open clamping structure anchor clamps 22 are opened, the plastic sheeting of having finished biaxial tension is sent to next procedure (as rolling); Above-mentioned subsequently anchor clamps 22 arrive the preheating section front end through backhaul section 14.
Brief description is the draw ratio control method of this plastic sheeting bi-directional synchronization stretcher once:
In the present embodiment, position by siding track 15 in regulating on the stretch section 12, (change the distance between stretch section 12 terminal interior siding tracks 15 and the outer siding track 16 during adjusting with the distance that changes between stretch section 12 posterior medial rails 15 and the outer siding track 16, and the distance between interior siding track 15 of stretch section 12 front ends and the outer siding track 16 remains unchanged, like this, except stretch section 12 front ends, distance on stretch section 12 each position between siding track 15 and the outer siding track 16 all can change), change longitudinal stretching thus than (adjustable extent of longitudinal stretching ratio is 1: 2-1: 8); Then, according to the position of interior siding track 15 on the stretch section 12, accommodation is made in the position of the interior siding track 15 on the typing section 13.
In other embodiments, the recovery segment is positioned at the front portion of backhaul section, distance in the recovery segment front end between siding track and the outer siding track equals the distance between upward interior siding track of the section of typing and the outer siding track, distance in distance in the recovery segment end between siding track and the outer siding track equals on the preheating section between siding track and the outer siding track, and backhaul section remainder (it is terminal to the part between the whole backhaul section end from recovering segment to be the backhaul section) is gone up the distance between the siding track and outer siding track in each position and is equal to the distance between the interior siding track and outer siding track on the preheating section, like this, siding track parallels with outer siding track on the major part of backhaul section, can reduce its resistance, can cut down the consumption of energy the driving-chain folder.
In other embodiments, the end of preheating section and the front end of stretch section are rotatably connected, the end of stretch section is rotatably connected with the front end of typing section, by the angle between the stretch section of regulating two circular orbits, can adjust the distance between the stretch section end of two circular orbits and the ratio of the distance between its front end, thereby realize the adjustment of cross directional stretch ratio; Perhaps, above-mentioned plastic sheeting bi-directional synchronization stretcher also comprises base and two movable stands, base is provided with cross slide way, and two movable stands are installed on the cross slide way and are slidingly matched or roll with cross slide way and cooperate, and two circular orbits are installed in respectively on two movable stands; Above-mentioned laterally being meant and the perpendicular direction of the direction of advance of plastic sheeting, under the situation that the preheating section of two circular orbits is parallel to each other, cross slide way and preheating section are perpendicular; Two movable stands can relatively move along cross slide way, to regulate the distance between two circular orbits, distance between the stretch section end of distance between the stretch section front end of two circular orbits and two circular orbits is changed simultaneously, thereby adjust the distance between the stretch section end of two circular orbits and the ratio of the distance between its front end, realize the adjustment of cross directional stretch ratio.Above-mentioned two kinds of schemes can adopt separately, also can adopt simultaneously, that is to say, the means of adjusting the cross directional stretch ratio are: regulate the angle between the stretch section of two circular orbits, and/or regulate distance between two circular orbits.
In other embodiments, siding track and outer siding track are gathering sill in above-mentioned; This moment, anchor clamps were provided with a roller, and the roller on the anchor clamps is in the outer siding track; Drive block is provided with a roller, and the roller on the drive block is in the interior siding track.
Claims (5)
1. the rail set of a plastic sheeting bi-directional synchronization stretcher, comprise two circular orbits, circular orbit comprises preheating section, stretch section, typing section and backhaul section, preheating section, stretch section, typing section and backhaul section are end to end successively, the preheating section of one circular orbit, stretch section and typing section are corresponding one by one with preheating section, stretch section and the typing fragment position of another circular orbit, distance between the stretch section of two circular orbits increases gradually from A-P, it is characterized in that: siding track and outer siding track in described circular orbit is provided with; At the stretch section of circular orbit, the distance between interior siding track and the outer siding track reduces gradually from A-P.
2. the rail set of plastic sheeting bi-directional synchronization stretcher according to claim 1 is characterized in that: the backhaul section of described circular orbit has one and recovers segment, and the distance on the recovery segment between interior siding track and the outer siding track increases gradually from A-P.
3. the rail set of plastic sheeting bi-directional synchronization stretcher according to claim 1, it is characterized in that: the end of described preheating section and the front end of stretch section are rotatably connected, the end of stretch section is rotatably connected with the front end of typing section, the backhaul section is divided into leading portion, interlude and back segment, the front end of the end of backhaul section leading portion and backhaul section interlude is rotatably connected, and the front end of the end of backhaul section interlude and backhaul section back segment is rotatably connected; The rail set of described plastic sheeting bi-directional synchronization stretcher also comprises movable stand behind base, two preceding movable stands and two, the preheating section of one circular orbit and backhaul section back segment are installed on the preceding movable stand, the preheating section of another circular orbit and backhaul section back segment are installed on another preceding movable stand, the typing section of one circular orbit and backhaul section leading portion are installed on the back movable stand, and the typing section of another circular orbit and backhaul section leading portion are installed on another back movable stand.
4. the rail set of plastic sheeting bi-directional synchronization stretcher according to claim 3 is characterized in that: described backhaul section interlude and stretch section equal in length and be parallel to each other.
5. according to the rail set of each described plastic sheeting bi-directional synchronization stretcher of claim 1-4, it is characterized in that: siding track and outer siding track are the guiding raised line in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206865619U CN202021807U (en) | 2010-12-29 | 2010-12-29 | Rail device for plastic film double-direction synchronous stretching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206865619U CN202021807U (en) | 2010-12-29 | 2010-12-29 | Rail device for plastic film double-direction synchronous stretching equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202021807U true CN202021807U (en) | 2011-11-02 |
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ID=44846775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206865619U Expired - Lifetime CN202021807U (en) | 2010-12-29 | 2010-12-29 | Rail device for plastic film double-direction synchronous stretching equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202021807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555202A (en) * | 2012-01-31 | 2012-07-11 | 青岛顺德塑料机械有限公司 | Guide rail specially used for plastic film bidirectional stretching sheet material |
| CN114228121A (en) * | 2022-02-24 | 2022-03-25 | 佛山市盟思拉伸机械有限公司 | Stretching device for improving synchronism of film at stretching initial section |
-
2010
- 2010-12-29 CN CN2010206865619U patent/CN202021807U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555202A (en) * | 2012-01-31 | 2012-07-11 | 青岛顺德塑料机械有限公司 | Guide rail specially used for plastic film bidirectional stretching sheet material |
| CN102555202B (en) * | 2012-01-31 | 2013-12-25 | 青岛海洋鲨科技有限公司 | Guide rail specially used for plastic film bidirectional stretching sheet material |
| CN103538248A (en) * | 2012-01-31 | 2014-01-29 | 青岛海洋鲨科技有限公司 | Special guide rail of two-way plastic film stretch sheet |
| CN103538248B (en) * | 2012-01-31 | 2015-10-28 | 青岛日能拉伸膜科技股份有限公司 | Special guide rail of two-way plastic film stretch sheet |
| CN114228121A (en) * | 2022-02-24 | 2022-03-25 | 佛山市盟思拉伸机械有限公司 | Stretching device for improving synchronism of film at stretching initial section |
| CN114228121B (en) * | 2022-02-24 | 2022-05-13 | 佛山市盟思拉伸机械有限公司 | Stretching device for improving synchronism of thin film at stretching initial section |
| WO2023160340A1 (en) * | 2022-02-24 | 2023-08-31 | 佛山市盟思拉伸装备有限公司 | Stretching device for improving synchronism of film at initial stage of stretching |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190916 Address after: Haojiang District Textile Industrial Park, 515098 Guangdong city of Shantou Province Patentee after: Guangdong Jinming Machinery Co., Ltd. Address before: 515000 Far East Industrial Park, new town, Longhu District, Guangdong, Shantou Patentee before: Yuandong Light Chemical Equipment Co, Ltd., Shantou City |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111102 |
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| CX01 | Expiry of patent term |