CN102784805A - Method for solving pinch ribbing of strip steel by setting roll gap - Google Patents
Method for solving pinch ribbing of strip steel by setting roll gap Download PDFInfo
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- CN102784805A CN102784805A CN2012102242909A CN201210224290A CN102784805A CN 102784805 A CN102784805 A CN 102784805A CN 2012102242909 A CN2012102242909 A CN 2012102242909A CN 201210224290 A CN201210224290 A CN 201210224290A CN 102784805 A CN102784805 A CN 102784805A
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Abstract
The invention discloses a method for solving pinch ribbing of a strip steel by setting a roll gap, and belongs to the field of the treatment for cold-rolling strip steels. The method comprises the following steps: arranging roll gap regulating devices between bearing blocks at two ends of an upper pinch roll and a left and a right frames, and between bearing blocks at two ends of a lower pinch roll and the left and the right frames, wherein the upper and the lower pinch rolls and the roll gap regulating devices form the whole pinch device; and regulating the physical position between the upper and the lower pinch rolls to make the physical position satisfy the set roll gap, wherein the roll gap is set according to a roll gap change regulation principle, and the roll gap value is obtained by subtracting the plastic deformation of the cross section of partial strip steel from the thickness of the strip steel according to a step relation associated with the roll gap and the thickness of the strip steel. The upper and the lower pinch rolls are mainly contacted with a local high point or a local hardness of the strip steel to drive the strip steel to be delivered by the friction generated at partial contacted points; and a rational physical gap setting value is combined with a matched roll gap regulation device to achieve the aims of avoiding the 'ribbing' phenomenon of the strip steel and also fully implementing the delivery of the strip steel.
Description
Technical field
The invention belongs to cold-strip steel processing operation field, relate in particular to a kind of method that thickness 2mm and following specification band steel on the cold-rolled carbon steel unit have pinched muscle that is used to solve.
Background technology
The band steel is through after the cold rolling or hot rolling, coil of strip in coiling process, often occur with length direction on consistent strip swell, be commonly called as " muscle ".
Usually the band steel in hot rolling or cold rolling process because the combined influence of multiple factors such as lubricated, cooling, roll shape, processing procedure; Inevitably can produce the inconsistent phenomenon of points hardness's inequality or yield strength; Usually the band steel is got over book, and uneven phenomenon is serious more, and this all has relation with rolling passage and drafts; If the band steel is thicker, the local non-uniform phenomenon of belt steel surface can alleviate to some extent.Certainly, if the subsequent treatment unit also can partly be eliminated the inconsistent phenomenon of local yielding intensity through sufficient annealing in process,, be to be difficult to all eliminate these birth defects through subsequent treatment still for the production of some high-strength steel.
" playing muscle " of band steel is relevant with the local high spot and the points hardness of supplied materials.
And the main cause that the band steel produces local high spot and points hardness is normally: hot rolling or the working roller abrasion when cold rolling are inhomogeneous, nozzle location not just or take place to stop up and to cause that the even or hot-rolled lubricant of roll inhomogeneous cooling applies improper.
When there is local high spot in incoming hot rolled slab.To the thickness of slab and the internal stress cross direction profiles of cold-strip steel be exerted an influence, produce additional rips after producing local ripple or coil of strip uncoiling when serious, produce " playing muscle " phenomenon thereby batch when pinching in outlet.
Generally " rise muscle " mainly appears under the situation that the band steel pinches or batch; This situation progressively accumulation can have influence on the surface quality of band steel and the finished product volume quality of batching; Though the local high spot of the band steel only essential part than the band steel is thicker slightly, up to a hundred layers of " playing muscle " that the local high spot accumulation can produce the thick 6mm of reaching when strip coiling.
If the inconsistent phenomenon of local yielding intensity of band steel does not have influence on the processing of later process and the quality of manufactured goods, solve the problem that the band steel pinched and batched muscle through taking measures, just improved the lumber recovery and the accepted product percentage of unit.
At present, the mechanism for " the playing muscle " of being with steel is also unclear fully so far both at home and abroad.
In the existing production technology,, mainly be equipment to be carried out limited control through hot rolling with when cold rolling for " playing muscle " way to solve the problem of band steel.
Owing in hot rolling and cold rolling production process, need the factor of control too many; Therefore unavoidably can produce the product of local high spot or local hard spot in producing; Usually can only adopt the power of depressing of regulating clamping and conveying device to handle for the subsequent treatment unit, this method is difficult to regulate to different-thickness band steel on the one hand, and owing to conduct the difficult problem that can't solve local high spot with all strength; Therefore, we can say and also do not find the effective workaround of avoiding having pinched muscle with steel.
Summary of the invention
Technical problem to be solved by this invention provides a kind of the solution through intermesh determination and is with steel to pinch the method for muscle; It is through the physics roll gap distance values between the upper and lower pinch roll of setting/control; Make its gap values between rollers equal the amount of plastic deformation that belt steel thickness deducts part band steel cross section; Upper and lower pinch roll mainly contacts with the local high spot or the points hardness of band steel, and through the conveying that steel is with in the frictional force drive that this part point contact is produced, rational physical separation setting value is combined in supporting roll gap adjustment device; Realized both satisfying the band steel and do not produced " playing muscle " phenomenon, can fully realize the function of carrying again with steel.
Technical scheme of the present invention is: provide a kind of and solve the method that the band steel has pinched muscle through intermesh determination; Comprise and adopting initiatively or the top pinch roll of passive transmission and bottom pinch roll formation clamping and conveying device; Be pressed onto the band steel through upper and lower pinch roll and produce suitable frictional force, to realize the conveying of band steel; Wherein, The two ends of said upper and lower pinch roll are respectively arranged with upper and lower pinch roll bearing block, and described upper and lower pinch roll bearing block correspondence respectively is installed on the left and right framework; Described left and right framework is connected with underframe through the frame fixation bolt; The bottom of underframe is fixed on the base plate, on the base plate fixed bottom boundary, it is characterized in that the method that said solution band steel has pinched muscle comprises the following steps: at least
A, at said top pinch roll or/and between the bearing block at bottom pinch roll two ends and the left and right framework, one group of roll gap adjustment device is set respectively, described top pinch roll, bottom pinch roll and roll gap adjustment device constitute a complete clamping and conveying device;
B, the belt steel thickness information that transmission issues according to the control system according to the roll gap ladder correlation related with belt steel thickness, are confirmed the setting value of roll gap spacing;
C, manual work or regulate the physical property position between top pinch roll and the bottom pinch roll automatically make it to meet the roll gap spacing of setting;
D, manual work or measure the setting value whether roll gap spacing between top pinch roll and the bottom pinch roll reaches or meet the roll gap spacing automatically;
E, when setting the roll gap spacing, change according to roll gap and to regulate principle and carry out; It is when the dancer rools kerf spacing that described roll gap changes the adjusting principle, follows the descending adjusting direction of roll gap spacing; If be transferred to the big roller kerf spacing from the pony roll kerf spacing, then must be transferred to maximum roll gap spacing earlier, progressively adjust back the roll gap distance values of setting again, to guarantee to set the precision of roll gap distance values;
F, the physical property set positions through roll gap between the upper and lower pinch roll, according to the roll gap ladder correlation related and the combination embodiment of supporting roll gap adjustment device thereof with belt steel thickness, the muscle problem that rises when solving the band steel effectively and pinching.
Further; Described solution band steel has pinched the method for muscle; Physical property set positions through roll gap between the upper and lower pinch roll; Replace the original power that pinches and set, to realize accurately controlling to the contact force of point between upper and lower pinch roll and the band steel, to solve the mass defect that has pinched muscle that 2mm and following gauge strips steel local high spot thereof cause effectively by face.
Concrete, described clamping and conveying device is made up of fixing bottom pinch roll and the top pinch roll that can move up and down, and the motion of top pinch roll is accomplished by the driving cylinder executing agency that is separately positioned on left and right framework upper end; The bearing block at upper and lower pinch roll two ends is installed in respectively on the left and right framework of band chute; Between the same side shaft holder of upper and lower pinch roll, but be provided with the roll gap adjustment device of manual adjustment; Described roll gap adjustment device is made up of closely-pitched adjusting screw(rod) and adjusting nut correspondence; One end of described closely-pitched adjusting screw(rod) is corresponding affixed with the bearing block of bottom pinch roll one end; The other end of closely-pitched adjusting screw(rod) passes the pilot hole on left frame or the correct frame; Be threaded locking nut of configuration on each adjusting nut with corresponding adjusting nut.
Its described roll gap adjustment device is guaranteed the accuracy of setting value through the intrinsic guidance quality of closely-pitched adjusting screw(rod) and adjusting nut.
Its described driving cylinder executing agency is hydraulic oil cylinder driving executing agency or air cylinder driven executing agency.
Perhaps, its described clamping and conveying device can be made up of fixing bottom pinch roll and top pinch roll that can arcuate movement; Wherein, the bearing block at bottom pinch roll two ends is installed on the left and right upper frame of band chute; But on the bearing block at bottom pinch roll two ends, be provided with the roll gap adjustment device of manual adjustment; Described roll gap adjustment device is made up of closely-pitched adjusting screw(rod) and adjusting nut correspondence; One end of described closely-pitched adjusting screw(rod) is corresponding affixed with the bearing block of bottom pinch roll one end; The other end of closely-pitched adjusting screw(rod) passes the pilot hole on left frame or the correct frame; Be threaded with corresponding adjusting nut; Locking nut of configuration is used for manual adjustments roll gap spacing on each adjusting nut; The bearing block at said top pinch roll two ends is installed in one and overlaps on the framework that can swing, contacts with bottom pinch roll after the oscillating motion of top pinch roll framework, to pinch the band steel.
Perhaps, its described clamping and conveying device can by fixing bottom pinch roll with can be up and down or the top pinch roll of arcuate movement form; Wherein, the bearing block at bottom pinch roll two ends is installed on the left and right upper frame of band chute; On the bearing block at said bottom pinch roll two ends, the roll gap adjustment device of tiltedly carving formula is set respectively, described roll gap adjustment device is controlled the roll gap spacing between the upper and lower pinch roll through the amount of feeding of tiltedly carving; Motor or hydraulic oil cylinder driving are adopted in its feed motion of tiltedly carving, and feeding distance adopts encoder or position sensor collection.Further, the described roll gap ladder correlation related with belt steel thickness confirmed by the following relationship formula:
Wherein, y is the thickness of pending band steel, and unit is mm; X is the adjusting play amount, and unit is mm.
Further; Described solution band steel has pinched the method for muscle; Through the gap values between rollers between the upper and lower pinch roll in the reasonable setting clamping and conveying device, make gap values between rollers equal the amount of plastic deformation that belt steel thickness deducts band steel cross section, its force way is that upper and lower pinch roll reacts on the band steel after stressed respectively; The reaction force that this reaction force is far smaller than full cross section directly act on band just on; The effect that produces is that the surface of upper and lower pinch roll contacts with the local high spot or the points hardness of band steel, and contacts the conveying that the frictional force that produces drives the band steel through this part point, combines with roll gap adjustment device through rational physical property position setting value; Neither produced the muscle phenomenon to satisfy the band steel, can fully realize again effectively pinching function with the steel conveying.
Compare with prior art, advantage of the present invention is:
1. adopt the physical property set positions of roll gap between the upper and lower pinch roll, replaced the original power that pinches and set, realized accurately controlling to the contact force of point between pinch roll and the band steel by face;
2. roll gap is regulated through accurate bolt and nut or mode such as tiltedly carve and is realized, has guaranteed degree of regulation;
3. roll gap is regulated and is followed descending principle, if from small to large, then must be transferred to the method that the maximal clearance is progressively adjusted back setting value more earlier, guarantees the setting value precision;
4. roll gap is regulated and can be adopted artificial setting of mechanical means or coder with accurate counting to control the mode of feedback automatically, has the alternative of control method;
5. the combination of said method and device has solved the mass defect that has pinched muscle that band steel local high spot causes effectively.
Description of drawings
Fig. 1 is the force analysis sketch map when being with steel to pinch;
Fig. 2 is an example structure sketch map of clamping and conveying device of the present invention;
Fig. 3 solves the method block diagram that the band steel has pinched muscle for the present invention.
1 is left frame among the figure, and 2 for depressing cylinder in a left side, and 3 is top pinch roll, and 4 is upper frame, and 5 for depressing cylinder in the right side; 6 is correct frame, and 7 is adjusting nut, and 8 is adjusting screw(rod), and 9 is underframe, and 91 is base plate; 92 is foundation bolt, and 93 is the frame fixation bolt, and 10 is bottom pinch roll, and 11 is step, and 12 is locking nut; 13 is top chock, and A is the line contact portion, and B is a contact portion, and X is the intermesh determination spacing.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Among Fig. 1, existing output strip line begins to produce and batches when switching, general adopt wear that the band pinch roll realizes the band steel take the lead to pinch function.
For avoid taking the lead folding or draw defective such as scuffing, pinch the mode of general employing pair roller, normally top pinch roll (is called for short top roll; 3 clamp down together) bottom pinch roll (being called for short lower roll, down together) the passive or Synchronous Transmission of 10 transmission top pinch rolls; The function that realization pinches at first is that top pinch roll is depressed, and touches the band steel; And produce certain pressure at belt steel surface, upper and lower then pinch roll carry out simultaneously initiatively or passive transmission to realize the conveying function of band steel.
For being pressed onto frictional force that the band steel produces through pressure roller to realize the conveying of band steel; Prior art adopts usually top pinch roll directly is pressed onto on the band steel; Produce downforce and directly be sent to bottom pinch roll through band steel cross section, the distance of roll gap equals to deduct with the thickness of steel the amount of plastic deformation of the whole cross sections of band steel between its upper and lower pinch roll, will cause pinch roll at first to contact with the local high spot or the points hardness of band steel like this; Then be pressed onto the zone of non local high point; Its force way be bottom pinch roll react on after stressed band just on, the frictional force conveyer belt steel that produces through comprehensive line contact portion A, in this case; Because the yield strength of contact point is inconsistent, caused the generation of " playing muscle " phenomenon.
Among Fig. 2, provided the structural representation of an embodiment of clamping and conveying device of the present invention.
Embodiment one:
In the present embodiment; Clamping and conveying device adopts fixing lower roll 10 and the top roll that can move up and down 3 to form; The bearing block 13 and 11 of upper and lower roll is installed on the cover left and right circle frame 1 and 6 of band chute; Left and right framework 1 is connected with bottom underframe 9 through frame fixation bolt 93 with 6, and underframe 9 bottoms in bottom are fixed on steel construction 91 and 92 ground, and the motion of top roll 3 is by oil cylinder or cylinder 2 and the completion of 5 executing agencies.
Be provided with artificial adjustable roll gap adjustment device between upper and lower roll 3 and 10 the bearing block 11 and 13, it mainly is made up of closely-pitched adjusting screw(rod) 8 and adjusting nut 7.
When unit is produced, produce according to the series-produced principle tissue of stack pile products collection, and according to the artificial roll gap of setting of the thickness of band steel; Owing to regulate roll gap through adjusting screw(rod) 8 and adjusting nut 7; And adjusting nut 7 has disposed locking nut 12, and the roll gap of therefore setting is the hard spacing X that mechanical means is set, can be because of the accurate intermesh determination of the motion effects of upper and lower roller; Owing to the intrinsic guidance quality of adjusting screw(rod) 8 and adjusting nut 7, guaranteed the accuracy of setting value.
Roll gap is regulated principle for guaranteeing the setting value precision, follow descending principle, if from small to large, then must be transferred to maximum establishing method of progressively adjusting back setting value more earlier.
Embodiment two:
Roll gap adjustment device adopts fixing lower roll and top roll that can arcuate movement to form.
Wherein, the bearing block of lower roll is installed on the cover framework of band chute, and top roll is installed in one and overlaps on the framework that can swing, contacts with lower roll after the oscillating motion of top roll framework, to pinch the band steel.
On the bearing block of lower roll, adopt the structure among the embodiment one, the bolt and nut adjusting device is installed, be used for manual adjustments roll gap spacing, roll gap changes to be regulated principle and adopts the adjusting principle same with embodiment one.
All the other are with embodiment one.
Embodiment three:
Adopt the upper and lower roll configuration structure form among the embodiment one or two.
On the bearing block of its lower roll, adopt the roll gap adjustment device of oblique wedge formula, through the amount of feeding control gap values between rollers of tiltedly carving, the feed motion of tiltedly carving can be adopted motor or hydraulic oil cylinder driving, and feeding distance can adopt encoder or position sensor collection.
According to the belt steel thickness information that the amount of feeding and the system of real-time collection issues, adopt the incidence formula of the amount of feeding and belt steel thickness, can realize that the automatic setting of different steel thickness and gap values between rollers is controlled.
All the other are with embodiment one or embodiment two.
Because it is exactly to regulate two physical separation or actual ranges between the mechanical part that the roll gap adjustment device among above-mentioned each embodiment is actually; This existing in the prior art multiple means or structure can realize (such as screw rod-nut kinematic pair, gear-tooth bar kinematic pair or tiltedly carve formula spacing adjusting device etc.); And the Different Exercise Mode of upper and lower pinch roll in the clamping and conveying device (comprises and possesses transmission agency but the fixing lower roll of upper-lower position, the top roll that moves up and down with respect to upper frame; Or with respect to the longitudinal axis of upper frame; Make top roll of swing or the like along the arcuate movement track); Also belong to prior art, so enumerate the detailed description with concrete structure one by one what this no longer carried out exhaustive.Those skilled in the art after grasping and understood the thinking and method that the present technique scheme deals with problems, need not to pass through performing creative labour, just can easily realize its structural implementation, reproduces its technique effect.
In the above-described embodiments, when adopting the method for manual measurement and spacing, can realize manual detection and adjusting, its advantage is implemented as originally lower, and implementation result is guaranteed.
When adopting position sensor, electronic or hydraulic/pneumatic drive unit to realize its detection, regulatory function; The signal output part of position sensor, control signal input electronic or the hydraulic/pneumatic drive unit are held corresponding connection respectively with the I/O of computer, industrial computer; Can constitute automatic detection/control system, its advantage is to save manual work, is swift in response; Operating efficiency is higher, is applicable to the automation control of production line flow process.
Among Fig. 3, the method that the described solution band of present technique scheme steel has pinched muscle comprises the following steps: at least
A, at said top pinch roll or/and between the bearing block at bottom pinch roll two ends and the left and right framework, one group of roll gap adjustment device is set respectively, described top pinch roll, bottom pinch roll and roll gap adjustment device constitute a complete clamping and conveying device;
B, the belt steel thickness information that transmission issues according to the control system according to the roll gap ladder correlation related with belt steel thickness, are confirmed the setting value of roll gap spacing;
C, manual work or regulate the physical property position between top pinch roll and the bottom pinch roll automatically make it to meet the roll gap spacing of setting;
D, manual work or measure the setting value whether roll gap spacing between top pinch roll and the bottom pinch roll reaches or meet the roll gap spacing automatically;
E, when setting the roll gap spacing, change according to roll gap and to regulate principle and carry out; It is when the dancer rools kerf spacing that described roll gap changes the adjusting principle, follows the descending adjusting direction of roll gap spacing; If be transferred to the big roller kerf spacing from the pony roll kerf spacing, then must be transferred to maximum roll gap spacing earlier, progressively adjust back the roll gap distance values of setting again, to guarantee to set the precision of roll gap distance values;
F, the physical property set positions through roll gap between the upper and lower pinch roll, according to the roll gap ladder correlation related and the combination embodiment of supporting roll gap adjustment device thereof with belt steel thickness, the muscle problem that rises when solving the band steel effectively and pinching.
Further; Described solution band steel has pinched the method for muscle; Physical property set positions through roll gap between the upper and lower pinch roll; Replace the original power that pinches and set, to realize accurately controlling to the contact force of point between upper and lower pinch roll and the band steel, to solve the mass defect that has pinched muscle that 2mm and following gauge strips steel local high spot thereof cause effectively by face.
Further, the described roll gap ladder correlation related with belt steel thickness confirmed by the following relationship formula:
Wherein, y is the thickness of pending band steel, the mm of unit; X is the adjusting play amount, and unit is mm.In other words, its described roll gap ladder correlation related with belt steel thickness can come respectively correspondence to adjust according to following number range:
When the thickness of band steel during smaller or equal to 0.3mm, it is 0.05mm that the roll gap gap is set in adjustment;
When the thickness of band steel greater than 0.3mm, and during smaller or equal to 0.35mm, it is 0.1mm that the roll gap gap is set in adjustment;
When the thickness of band steel greater than 0.35mm, and during smaller or equal to 0.5mm, it is 0.15mm that the roll gap gap is set in adjustment;
When the thickness of band steel greater than 0.5mm, and during smaller or equal to 1.5mm, it is 0.2mm that the roll gap gap is set in adjustment;
When the thickness of band steel during greater than 1.5mm, it is 0.3mm that the roll gap gap is set in adjustment.
Further; Described solution band steel has pinched the method for muscle; Through the gap values between rollers between the upper and lower pinch roll in the reasonable setting clamping and conveying device, make gap values between rollers equal the amount of plastic deformation that belt steel thickness deducts band steel cross section, its force way is that upper and lower pinch roll reacts on the band steel after stressed respectively; The reaction force that this reaction force is far smaller than full cross section directly act on band just on; The effect that produces is that the surface of upper and lower pinch roll contacts with the local high spot or the points hardness of band steel, and contacts the conveying that the frictional force that produces drives the band steel through this part point, combines with roll gap adjustment device through rational physical property position setting value; Neither produced the muscle phenomenon to satisfy the band steel, can fully realize again effectively pinching function with the steel conveying.
Because the present invention is according to the roll gap ladder correlative relationship related with belt steel thickness; Through the physics roll gap distance values between the upper and lower pinch roll of setting/control; Make its gap values between rollers equal the amount of plastic deformation that belt steel thickness deducts part band steel cross section; Upper and lower pinch roll mainly contacts with the local high spot or the points hardness of band steel, and through the conveying that steel is with in the frictional force drive that this part point contact is produced, rational physical separation setting value is combined in supporting roll gap adjustment device; Realized both satisfying the band steel and do not produced " playing muscle " phenomenon, can fully realize the goal of the invention of carrying again with steel.
The present invention can be widely used in the production field of all size belt steel product.
Claims (9)
1. one kind solves the method that the band steel has pinched muscle through intermesh determination, comprises adopting initiatively or the top pinch roll of passive transmission and bottom pinch roll constitute clamping and conveying device, is pressed onto the band steel through upper and lower pinch roll and produces suitable frictional force, is with the conveying of steel with realization; Wherein, The two ends of said upper and lower pinch roll are respectively arranged with upper and lower pinch roll bearing block, and described upper and lower pinch roll bearing block correspondence respectively is installed on the left and right framework; Described left and right framework is connected with underframe through the frame fixation bolt; The bottom of underframe is fixed on the base plate, on the base plate fixed bottom boundary, it is characterized in that the method that said solution band steel has pinched muscle comprises the following steps: at least
A, at said top pinch roll or/and between the bearing block at bottom pinch roll two ends and the left and right framework, one group of roll gap adjustment device is set respectively, described top pinch roll, bottom pinch roll and roll gap adjustment device constitute a complete clamping and conveying device;
B, the belt steel thickness information that transmission issues according to the control system according to the roll gap ladder correlation related with belt steel thickness, are confirmed the setting value of roll gap spacing;
C, manual work or regulate the physical property position between top pinch roll and the bottom pinch roll automatically make it to meet the roll gap spacing of setting;
D, manual work or measure the setting value whether roll gap spacing between top pinch roll and the bottom pinch roll reaches or meet the roll gap spacing automatically;
E, when setting the roll gap spacing, change according to roll gap and to regulate principle and carry out; It is when the dancer rools kerf spacing that described roll gap changes the adjusting principle, follows the descending adjusting direction of roll gap spacing; If be transferred to the big roller kerf spacing from the pony roll kerf spacing, then must be transferred to maximum roll gap spacing earlier, progressively adjust back the roll gap distance values of setting again, to guarantee to set the precision of roll gap distance values;
F, the physical property set positions through roll gap between the upper and lower pinch roll, according to the roll gap ladder correlation related and the combination embodiment of supporting roll gap adjustment device thereof with belt steel thickness, the muscle problem that rises when solving the band steel effectively and pinching.
2. solve the method that the band steel has pinched muscle according to claim 1 is described through intermesh determination; It is characterized in that described solution band steel has pinched the method for muscle; Physical property set positions through roll gap between the upper and lower pinch roll; Replace the original power that pinches and set, to realize accurately controlling to the contact force of point between upper and lower pinch roll and the band steel, to solve the mass defect that has pinched muscle that 2mm and following gauge strips steel local high spot thereof cause effectively by face.
3. solve the method that the band steel has pinched muscle according to claim 1 is described through intermesh determination; It is characterized in that described clamping and conveying device is made up of fixing bottom pinch roll and the top pinch roll that can move up and down, the motion of top pinch roll is by the driving cylinder executing agency completion that is separately positioned on left and right framework upper end; The bearing block at upper and lower pinch roll two ends is installed in respectively on the left and right framework of band chute; Between the same side shaft holder of upper and lower pinch roll, but be provided with the roll gap adjustment device of manual adjustment; Described roll gap adjustment device is made up of closely-pitched adjusting screw(rod) and adjusting nut correspondence; One end of described closely-pitched adjusting screw(rod) is corresponding affixed with the bearing block of bottom pinch roll one end; The other end of closely-pitched adjusting screw(rod) passes the pilot hole on left frame or the correct frame; Be threaded locking nut of configuration on each adjusting nut with corresponding adjusting nut.
4. solve the method that the band steel has pinched muscle according to claim 3 is described through intermesh determination, it is characterized in that the intrinsic guidance quality of described roll gap adjustment device, guarantee the accuracy of setting value through closely-pitched adjusting screw(rod) and adjusting nut.
5. solve the method that the band steel has pinched muscle according to claim 3 is described through intermesh determination, it is characterized in that described driving cylinder executing agency is hydraulic oil cylinder driving executing agency or air cylinder driven executing agency.
6. solve the method that the band steel has pinched muscle according to claim 1 is described through intermesh determination, it is characterized in that described clamping and conveying device is made up of fixing bottom pinch roll and top pinch roll that can arcuate movement; Wherein, the bearing block at bottom pinch roll two ends is installed on the left and right upper frame of band chute; But on the bearing block at bottom pinch roll two ends, be provided with the roll gap adjustment device of manual adjustment; Described roll gap adjustment device is made up of closely-pitched adjusting screw(rod) and adjusting nut correspondence; One end of described closely-pitched adjusting screw(rod) is corresponding affixed with the bearing block of bottom pinch roll one end; The other end of closely-pitched adjusting screw(rod) passes the pilot hole on left frame or the correct frame; Be threaded with corresponding adjusting nut; Locking nut of configuration is used for manual adjustments roll gap spacing on each adjusting nut; The bearing block at said top pinch roll two ends is installed in one and overlaps on the framework that can swing, contacts with bottom pinch roll after the oscillating motion of top pinch roll framework, to pinch the band steel.
7. solve the method that the band steel has pinched muscle according to claim 1 is described through intermesh determination, it is characterized in that described clamping and conveying device by fixing bottom pinch roll and can be up and down or the top pinch roll of arcuate movement form; Wherein, the bearing block at bottom pinch roll two ends is installed on the left and right upper frame of band chute; On the bearing block at said bottom pinch roll two ends, the roll gap adjustment device of tiltedly carving formula is set respectively, described roll gap adjustment device is controlled the roll gap spacing between the upper and lower pinch roll through the amount of feeding of tiltedly carving; Motor or hydraulic oil cylinder driving are adopted in its feed motion of tiltedly carving, and feeding distance adopts encoder or position sensor collection.
8. solve the method that the band steel has pinched muscle according to claim 1 is described through intermesh determination, it is characterized in that the described roll gap ladder correlation related with belt steel thickness confirmed by the following relationship formula:
Wherein, y is the thickness of pending band steel, and unit is mm; X is the adjusting play amount, and unit is mm.
9. solve the method that the band steel has pinched muscle according to claim 1 is described through intermesh determination; It is characterized in that described solution band steel has pinched the method for muscle; Through the gap values between rollers between the upper and lower pinch roll in the reasonable setting clamping and conveying device; Make gap values between rollers equal the amount of plastic deformation that belt steel thickness deducts band steel cross section; Its force way is that upper and lower pinch roll reacts on the band steel after stressed respectively, the reaction force that this reaction force is far smaller than full cross section directly act on band just on, the effect of generation is that the surface of upper and lower pinch roll contacts with the local high spot or the points hardness that are with steel; And the frictional force of passing through this part point contact generation drives the conveying of band steel; Combine with roll gap adjustment device through rational physical property position setting value, neither produced the muscle phenomenon, can fully realize again effectively pinching function with the steel conveying to satisfy the band steel.
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| CN2012102242909A CN102784805A (en) | 2012-06-29 | 2012-06-29 | Method for solving pinch ribbing of strip steel by setting roll gap |
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| CN105458033A (en) * | 2014-09-09 | 2016-04-06 | 北京中机璞润科技有限公司 | Recoiling machine with function of correcting eccentric and staggered narrow aluminum strip coils |
| CN107985994A (en) * | 2017-12-27 | 2018-05-04 | 天津超金精密电子有限公司 | More specification motor shaft feed devices |
| CN111621765A (en) * | 2019-02-28 | 2020-09-04 | 山西米亚索乐装备科技有限公司 | Feeding and discharging device |
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| CN103947800A (en) * | 2014-04-23 | 2014-07-30 | 程礼华 | Multi-nutrient herbal tea as well as preparation device and preparation method thereof |
| CN105458033A (en) * | 2014-09-09 | 2016-04-06 | 北京中机璞润科技有限公司 | Recoiling machine with function of correcting eccentric and staggered narrow aluminum strip coils |
| CN104174706A (en) * | 2014-09-11 | 2014-12-03 | 浙江恒立数控科技股份有限公司 | Roller set downwards-pressing quantity precise-measuring device |
| CN104209349A (en) * | 2014-09-25 | 2014-12-17 | 中天钢铁集团有限公司 | Energy-saving type rough rolling front pinch roller device |
| CN104209349B (en) * | 2014-09-25 | 2016-01-20 | 中天钢铁集团有限公司 | Pinch roll apparatus before energy-saving roughing |
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| CN111621765A (en) * | 2019-02-28 | 2020-09-04 | 山西米亚索乐装备科技有限公司 | Feeding and discharging device |
| CN112024610A (en) * | 2020-07-22 | 2020-12-04 | 北京科技大学设计研究院有限公司 | Control method for front pinch roll of coil rolling line finishing mill set |
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