CN102553975B - Multi-roller straightener - Google Patents
Multi-roller straightener Download PDFInfo
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- CN102553975B CN102553975B CN2011104605029A CN201110460502A CN102553975B CN 102553975 B CN102553975 B CN 102553975B CN 2011104605029 A CN2011104605029 A CN 2011104605029A CN 201110460502 A CN201110460502 A CN 201110460502A CN 102553975 B CN102553975 B CN 102553975B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 7
- 230000002441 reversible effect Effects 0.000 abstract description 5
- 210000001503 joint Anatomy 0.000 abstract description 4
- 238000012937 correction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The invention discloses a multi-roll straightener which comprises a main transmission mechanism, a universal spindle, a spindle clasping mechanism, a stander, an upper roll device, a lower roll device, a pressing mechanism, a bending roll, a balance mechanism and a roll changing device, wherein an upper movable cross beam is arranged on the stander, the upper roll device is supported by the upper movable cross beam, the upper roll device is connected with the upper movable cross beam through a plurality of clamping devices, the lower roll device comprises a lower row of straightening rolls, a lower roll device base and side rolls, the side rolls are arranged on two sides of the lower row of straightening rolls, the lower roll device is supported by the lower roll device base, a side roll lifting device is arranged on the side part of the lower roll device base, and the side roll lifting device is in contraposition and butt joint with the side rolls. The invention is applied to the field of medium plate straightening, has compact structure, high rigidity and rapid roll change, can realize reversible reciprocating straightening, has good plate shape correction, and particularly can meet the flatness requirement of thin high-strength steel plates.
Description
Technical Field
The invention relates to a multi-roll straightener, in particular to a multi-roll straightener which is used for improving the shape of a medium plate and can change rolls quickly.
Background
As is well known, a straightening machine is a key device in the process of finishing medium and thick plates, and the straightening machine performs extrusion straightening on steel materials and the like through straightening rollers. For example, chinese utility model patent (publication number is CN2309192Y) discloses a medium plate hot straightening machine, including motor, shaft coupling, reduction gear, distributor box, cross head universal spindle, frame, screw down device, uninstallation device, go up roller device, lower roll device etc, lower roll device includes lower row of leveling roller, lower roll device base, limit roller etc, the frame is with two entablature, through four screw thread pull rods pretension between stand and the base that two inboards have the spigot surface, be connected through hydraulic spring chucking device between upper roll system and the last movable cross beam, be equipped with tilting device in the frame, bracket device and roll change device, have that the rigidity is good, the aligning is few, the shorter advantage of roll change time. However, the existing straightener has the following defects:
1. the hydraulic spring clamping device of the existing straightener consists of an oil cylinder, a handle, a spring and a T-shaped bolt, wherein one end of the T-shaped bolt is hinged with a piston, the bolt and the piston can move coaxially, the bolt can rotate relative to the piston, the other end of the T-shaped bolt is connected with an upper roller system base, and the handle is fixedly connected with the bolt to play a role in connecting an upper roller system and an upper movable cross beam. But the structure is more complex, and the spring is easy to lose efficacy when in use, and the upper roller system base and the upper movable cross beam are not easy to loosen smoothly, thereby prolonging the roller changing time.
2. The multi-roll straightener commonly used in China is provided with the edge roll adjusting device, the effect of flexibly adjusting the height of the edge roll is achieved, the shape of the plate is improved, and the straightening precision is improved.
3. The roll changing hydraulic cylinder of the existing straightener is generally arranged below the frame, and the overhauling operation is very difficult.
4. Because the straightening roller of the existing straightening machine adopts independent transmission, and torque is transmitted by a spline. When the roller is changed, the old roller is pulled out of the frame by the roller changing hydraulic cylinder, and the spline teeth of the old roller are pulled out of the spline sleeve; when the new roller is inserted, the positions of the spline teeth and the spline sleeve are easily mismatched, so that the new roller cannot be directly and accurately inserted, the roller changing time is prolonged, and the production efficiency is reduced.
Therefore, how to easily loosen the upper roll system base and the upper movable cross beam smoothly and ensure the alignment and matching of the spline teeth and the spline sleeve, thereby shortening the roll changing time, improving the roll changing efficiency and facilitating the maintenance becomes an urgent need of improvement in the industry.
In view of the problems of the existing straightener, the designer combines the practical application of the multi-roll straightener based on the abundant experience and the over-strong professional knowledge in many years of mechanical design and manufacture, actively carries out research and innovation, aims to overcome the defects of the prior art in the aspect of structure, and provides the multi-roll straightener which is rapid in roll change, convenient to overhaul, compact in structure and high in production efficiency.
Disclosure of Invention
The invention aims to provide a multi-roll straightener which is rapid in roll change, convenient to overhaul, compact in structure and high in production efficiency.
In order to achieve the purpose, the invention provides a multi-roll straightener which comprises a main transmission mechanism, a universal spindle, a spindle holding mechanism, a stander, an upper roll device, a lower roll device, a pressing mechanism, a bending roll, a balance mechanism and a roll changing device, wherein an upper movable cross beam is arranged on the stander, the upper roll device is supported by the upper movable cross beam, the upper roll device is connected with the upper movable cross beam through a plurality of clamping devices, the clamping devices are fixedly arranged on the upper movable cross beam, the lower roll device comprises a lower row of straightening rolls, a lower roll device base and side rolls, the side rolls are arranged on two sides of the lower row of straightening rolls, the lower roll device is supported by the lower roll device base, a side roll lifting device is arranged on the side part of the lower roll device base, and the side roll lifting device is in contraposition and butt joint with the side rolls.
The multi-roll straightener is characterized in that the edge roll lifting device comprises a plurality of lifters which are connected in series through a shaft lever and a coupler, a hydraulic motor is arranged at the outer end of the shaft lever, a base of the lifter is fixed on a base of the lower roll device, and the lifter is in butt joint with the edge roll.
The multi-roll straightener described above, wherein the two edge roll lifting devices are provided and are respectively provided at the inlet side and the outlet side of the multi-roll straightener.
The multi-roll straightener is characterized in that each clamping device comprises a hydraulic cylinder body, a double-rod piston and a T-shaped head used for being connected with the upper roll device, the double-rod piston penetrates through the hydraulic cylinder body, a spiral slideway is formed in the outer wall of a first piston rod on one side of the double-rod piston, the end of a second piston rod on the other side of the double-rod piston is connected with the T-shaped head, an adjusting screw penetrates through the hydraulic cylinder body along the radial direction, the extending end of the adjusting screw extending into the hydraulic cylinder body corresponds to the spiral slideway, a rotatable steel ball is arranged on the extending end of the adjusting screw, and the steel ball can roll along the spiral slideway.
The multi-roll straightener is characterized in that the extending end of the adjusting screw is provided with an inward concave end face, and the steel ball can be embedded on the inward concave end face in a rolling manner.
The multi-roll straightener above, wherein the end of the second piston rod is connected with the T-shaped head by a bolt.
The multi-roll straightener described above, wherein there are four of the clamping devices, two of the clamping devices are provided at the inlet side of the multi-roll straightener, and two of the clamping devices are also provided at the outlet side of the multi-roll straightener.
The multi-roll straightener is characterized in that the roll changing device is arranged on the rack and comprises a roll changing hydraulic cylinder, a roll changing trolley and a roll changing track frame, the roll changing hydraulic cylinder is arranged on the outer side of the rack and drives the roll changing trolley to slide along a track arranged on the roll changing track frame, and the roll changing trolley is connected with the lower roll device through a connecting pin.
The multi-roll straightener is characterized by further comprising a pair-roll template, wherein the pair-roll template comprises a steel plate and a plurality of round bars, a plurality of circular arc grooves are formed in one side of the steel plate, and the round bars are welded to preset positions of the circular arc grooves respectively.
Compared with the prior art, the invention has the following characteristics and advantages:
1. the edge roller lifting device is formed by connecting a plurality of lifters in series and driven by a hydraulic motor, so that the edge roller can be independently and vertically adjusted to bite a steel plate; on the other hand, the steel plate straightening machine can be vertically adjusted up and down under the condition of load so as to ensure the straightness of the steel plate output from the straightening machine. And the inlet and the outlet of the straightener are respectively provided with a whole set of devices on the base of the lower roll device, and can be pulled out along with the whole roll system, thereby being convenient for maintenance and replacement.
2. The clamping device capable of automatically rotating the T-shaped head is arranged, the upper roll device can be rapidly clamped and loosened, the operation is simple, reliable and convenient, and the auxiliary time is saved for rapidly changing the rolls.
3. The upper roll device is separated from the clamping device and directly falls on the lower roll device, and the upper roll device is directly pulled out of the rack by an independent roll changing trolley. The whole roll changing process is simple and quick in action, and the production efficiency is greatly improved; and the roll changing hydraulic cylinder is arranged externally, so that the maintenance is convenient.
4. The invention adopts the double-roller template, so that the spline teeth of the new roller are accurately and quickly inserted into the spline sleeve of the transmission mechanism, the operation is simple and easy, the roller changing time is greatly shortened, and the production rate is obviously improved.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
FIG. 1 is a schematic structural view of a multi-roll straightener of the present invention;
FIG. 2 is a schematic front view of the edge roll lifting device of the present invention;
FIG. 3 is a schematic top view of the edge roll lifting device of the present invention;
FIG. 4 is a schematic view of the clamping mechanism of the present invention;
FIG. 5 is a schematic view of the clamping mechanism of the present invention in a released state;
FIG. 6 is a schematic view of the roll changing apparatus of the present invention;
fig. 7 is a schematic structural view of the roll form of the present invention.
Description of reference numerals:
1-a main transmission mechanism; 2-universal joint shaft; 3-a connecting shaft holding mechanism; 4-a frame; 5-an upper roll device; 6-a lower roll device; 61-edge rollers; 7-a pressing mechanism; 8-bending roll and balance mechanism; 9-a roll changing device; 91-roll changing hydraulic cylinder; 92-roll changing trolley; 93-roll changing rail frame; 94-a track; 95-connecting pins; 10-upper movable beam; 11-a clamping device; 111-hydraulic cylinder; 112-double rod piston; 113-T head; 114-a first piston rod; 115-a second piston rod; 116-a separating plug; 117-a first chamber; 118-a second chamber; 119-a spiral slideway; 12-lower roll apparatus base; 13-edge roll lifting device; 131-a lifter; 132-a shaft; 133-a coupler; 134-hydraulic motor; 14-an adjusting screw; 15-steel ball; 16-spline housing; 17-paired roller templates; 171-steel plate; 172-round bar; 173-circular arc shaped groove; 18-straightening roll.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
Referring to fig. 1, fig. 2 and fig. 3, the structure of the multi-roll straightener of the present invention is schematically illustrated; the invention relates to a front view structure schematic diagram and a top view structure schematic diagram of an edge roller lifting device. As shown in the figure, the multi-roll straightener provided by the invention comprises a main transmission mechanism 1, a universal spindle 2, a spindle clasping mechanism 3, a frame 4, an upper roll device 5, a lower roll device 6, a screw-down mechanism 7, a roll bending and balancing mechanism 8 and a roll changing device 9, wherein an upper movable cross beam 10 is installed on the frame 4, the upper roll device 5 is supported by the upper movable cross beam 10, the lower roll device 6 comprises a lower row of straightening rolls, a lower roll device base 12 and side rolls 61, the side rolls 61 are arranged on two sides of the lower row of straightening rolls, the upper roll device 5 is connected with the upper movable cross beam 10 through four clamping devices 11, the clamping devices 11 are fixedly arranged on the upper movable cross beam 10, the lower roll device 6 is supported by the lower roll device base 12, a side roll lifting device 13 is arranged on the side part of the lower roll device base 12, and the side roll lifting device 13 is in contraposition. In this way, the edge roller adjusting device 13 can realize the independent vertical adjustment of the edge rollers on one hand so as to facilitate the biting of the steel plate; on the other hand, the steel plate straightening machine can be vertically adjusted up and down under the condition of load so as to ensure the straightness of the steel plate output from the straightening machine.
Referring to fig. 2 and fig. 3, a front view structural schematic diagram and a top view structural schematic diagram of the edge roller lifting device of the present invention are respectively shown. As shown in the figure, in the present embodiment, the edge roll lifting device 13 includes a plurality of lifters 131 for adjusting the lifting position of the lower roll device 6, and the plurality of lifters 131 are connected in series through a shaft rod 132 and a coupling 133, so that the lifters 131 are uniformly arranged below the bottom of the lower roll device 6; the base of the lifter 131 is fixed on the base 12 of the lower roller device, the lifter 131 is in contraposition and butt joint with the edge roller 61, the hydraulic motor 134 is arranged at the outer end of the shaft rod 132, the lifter 131 is driven by the hydraulic motor 134, and the edge roller can be independently vertically adjusted so as to be convenient for biting the steel plate; on the other hand, the steel plate straightening machine can be vertically adjusted up and down under the condition of load so as to ensure the straightness of the steel plate output from the straightening machine.
Furthermore, as shown in fig. 3, two side roll lifting devices 13 are provided and are respectively arranged on the inlet side and the outlet side of the multi-roll straightener, so that the lower roll device 6 is uniformly stressed and plays a role in enhancing the support stability, and the inlet and the outlet of the straightener are respectively provided with one set, and the whole set of device is arranged on the base of the lower roll device and can be pulled out along with the whole roll system, thereby being convenient for maintenance and replacement. However, the present invention does not limit the number of the side roller elevating devices 13 as long as the lower roller device 6 and the upper roller device 5 can be pulled out and returned.
Further, please refer to fig. 4 and fig. 5, which are a schematic diagram of a clamping state and a schematic diagram of a releasing state of the clamping device of the present invention, respectively. As shown in the figure, each of the clamping devices 11 includes a hydraulic cylinder 111, a double-rod piston 112 and a T-shaped head 113 for connecting with the upper roller device 5, the double-rod piston 112 penetrates through the hydraulic cylinder 111, the double-rod piston 112 includes a first piston rod 114, a second piston rod 115 and a separating plug 116 connected between the first piston rod 114 and the second piston rod 115, the separating plug 116 divides an inner cavity of the hydraulic cylinder 111 into a first chamber 117 and a second chamber 118, and the telescopic movement of the double-rod piston 112 is realized by respectively filling oil into the first chamber 117 and the second chamber 118. The outer wall of the first piston rod 114 is provided with a spiral slideway 119, and the end of the second piston rod 115 is connected with the T-shaped head 113, so that the T-shaped head 113 and the second piston rod 115 synchronously rotate and stretch. An adjusting screw 14 is arranged on the hydraulic cylinder body 111 in a penetrating manner along the radial direction, the extending end of the adjusting screw 14 extending into the hydraulic cylinder body 111 corresponds to the spiral slideway 119, a rotatable steel ball 15 is arranged on the extending end of the adjusting screw 14, the steel ball 15 can roll along the spiral slideway 119, so that when the double-rod piston 112 extends and retracts, the steel ball 15 rolls at the original position, and the spiral slideway 119 moves relative to the steel ball 15, so that the double-rod piston 112 rotates. In this embodiment, the length of the spiral chute 119 and the spiral angle are set, so that the dual-rod piston 112 rotates by 90 ° exactly, and then the T-shaped head 113 is driven to rotate by 90 °, and the T-shaped head 113 can be separated from the connecting position of the upper roller device 5 to separate from the upper roller device 5.
More specifically, as shown in fig. 4 and 5, when the first chamber 117 is filled with oil, the double-rod piston 112 moves downward, the steel ball 15 embedded in the end of the adjusting screw 14 can roll along the spiral slideway 119, the double-rod piston 112 rotates 90 degrees, the T-shaped head 113 rotates 90 degrees, and the upper roller device 5 is disconnected from the upper movable cross beam 10. When the second chamber 118 is filled with oil, the double-rod piston 112 retracts, the steel ball 15 rolls along the spiral slideway 119 in a reverse direction, the double-rod piston 112 rotates in a reverse direction at the same time, the T-shaped head 113 rotates in a reverse direction at 90 degrees, and the upper roller device 5 is clamped with the upper movable cross beam 10 and returns to a clamping state. Thus, the chucking device 11 is disposed on the upper movable beam 10, and the close fitting or releasing of the upper roller device 5 to or from the upper movable beam 10 is achieved.
Furthermore, as shown in fig. 4 and 5, the extending end of the adjusting screw 14 has an inward concave end surface, and the steel ball 15 can be inserted into the inward concave end surface in a rolling manner, so as to play a role in positioning the steel ball 15.
Further, the end of the second piston rod 115 is connected with the T-shaped head 113 through a bolt, so as to ensure that the T-shaped head 113 moves in a telescopic and rotary manner along with the second piston rod 115. However, other known connection means, such as a pin connection, may be used between the second piston rod 115 and the T-head 113 in the present invention, as long as the T-head 113 is ensured to move telescopically and rotationally with the second piston rod 115.
Further, four clamping devices 11 are arranged, two clamping devices 11 are arranged at the inlet side of the multi-roll straightener, and two clamping devices 11 are also arranged at the outlet side of the multi-roll straightener, so that the upper roll device 5 and the upper movable cross beam 10 are locked and fixed. However, the number of the clamping devices 11 is not limited in the present invention, as long as the sufficient locking strength between the upper roll device 5 and the upper movable cross member 10 is ensured, and the clamping devices 11 can be easily separated from the upper roll device 5.
Further, please refer to fig. 6, which is a schematic structural diagram of the roll changing apparatus of the present invention. As shown in the figure, the roll changing device 9 is arranged on the machine frame 4, the roll changing device 9 comprises a roll changing hydraulic cylinder 91, a roll changing trolley 92 and a roll changing track frame 93, the roll changing hydraulic cylinder 91 is arranged on the outer side of the machine frame 4, the roll changing hydraulic cylinder 91 drives the roll changing trolley 92 to slide along a track 94 arranged on the roll changing track frame 93, when the roll is changed, the roll changing trolley 92 is connected with the lower roll device 6 through a connecting pin 95, the roll system needing to be changed is pulled out through the roll changing hydraulic cylinder 91 to drive the roll changing trolley 92, the roll changing function is realized, and the roll changing device has the advantages of convenience in operation and quickness in roll changing. The roll-changing hydraulic cylinder 91 is arranged outside the frame 4, so that the roll-changing hydraulic cylinder has the advantage of convenience in maintenance.
Further, at the time of replacement, in order to facilitate assembly of a new roller system with the main transmission 1, it is necessary to bring the spline teeth of the straightening roller 18 into a set engagement position with the spline housing 16 of the universal joint shaft 2. For this purpose, the multi-roll straightener of the present invention further includes a pair of roll templates 17, please refer to fig. 7, which is a schematic structural diagram of the pair of roll templates of the present invention. As shown in the figure, the paired roller die plate 17 includes a steel plate 171 and a plurality of round bars 172, a plurality of circular arc grooves 173 are formed on one side of the steel plate 171, and the plurality of round bars 172 are respectively welded to predetermined positions of the circular arc grooves 173. The round rod 172 is welded on the arc-shaped groove 173 of the steel plate 171 according to the position of the spline teeth of the electrically-controlled machine-halt-position straightening machine, the position of the spline teeth of the new roller is adjusted by using the pair roller template before the new roller is inserted, and the spline teeth of the straightening roller 18 correspond to the position of the spline sleeve 16 of the universal spindle 2, so that the new roller can be smoothly inserted into a matching position, and the roller changing time is greatly saved.
The specific process of the invention for replacing the straightening roller is as follows:
firstly, pulling out an old roller:
1. manually disassembling all connecting pipelines and the lower roll device positioning pins, and installing the lower roll device and the connecting pins of the roll changing device;
2. the roller changing hydraulic cylinder lifts the lower roller device to a roller changing position;
3. a hydraulic motor of the connecting shaft bracket device drives a screw jack to lift the lower bracket to a roller changing position and support the lower row of connecting shafts;
4. the upper roller device is lowered by a screw and a balance hydraulic cylinder and is seated on the lower roller device;
5. the first chamber of the clamping device takes oil, the piston rod is lowered, and the upper roller device is disengaged;
6. the upper movable cross beam is lifted to the upper limit position by a pressing screw and a balance hydraulic cylinder;
7. the upper holding cylinder on the connecting shaft retracts, the upper bracket is lowered, and the upper row of connecting shafts is held tightly;
8. and pulling out the old roller by the roller changing hydraulic cylinder, and hoisting away the old roller system.
Secondly, pushing in a new roller:
1. hoisting the new roller device to a roller changing track; and a connecting pin of the roll changing device and the lower roll device is fixed manually.
2. And starting the roll changing hydraulic cylinder to push the whole roll system into the straightening machine. When the flat head of the new roller is 100mm away from the connecting shaft, the roller changing hydraulic cylinder stops when the position of the manual roller pair is reached;
3. aligning the shaft head of the straightening roller with the spline of the shaft sleeve of the spindle by using a pair roller template;
4. starting a roller changing cylinder to slowly push the roller system to a working position;
5. the connecting shaft is tightly held by the cylinder to be pushed out, and the upper bracket is lifted;
6. the upper movable cross beam is lowered by a screw down and a balance hydraulic cylinder to be in contact with the top surface of the upper roller device;
7. oil is fed into a second chamber of the clamping device, the piston rod is lifted, and the upper movable cross beam and the upper roller device are tensioned;
8. pressing down a screw and a balance hydraulic cylinder to lift the upper roller device to an upper limit position;
9. a hydraulic motor of the connecting shaft holding device drives a screw jack to lower the lower bracket to a lower limit position;
10. the rail lifting cylinder retracts (releases pressure), and the lower roll device is lowered to a working position; fixing a positioning pin between the lower roll device and the lower machine base manually, and taking out a connecting pin between the lower roll device and the roll changing device; and the roll changing hydraulic cylinder retracts to the roll changing position (pressure relief), and all connecting pipelines are manually connected.
In summary, the side roller lifting device 13 is arranged on the side part of the lower roller device base 12, so that the side roller adjusting device 13 can realize the independent vertical adjustment of the side roller on one hand, so as to facilitate the biting of the steel plate; on the other hand, the steel plate straightening machine can be vertically adjusted up and down under the condition of load so as to ensure the straightness of the steel plate output from the straightening machine. And the inlet and the outlet of the straightener are respectively provided with a whole device on the base of the lower roll device, and can be pulled out along with the whole roll system, thereby being convenient for maintenance and replacement. The upper roll device 5 is connected with the upper movable cross beam 10 through the plurality of clamping devices 11, so that the upper roll device 5 and the upper movable cross beam 10 are convenient to lock and release, the roll changing time is shortened, and the working efficiency is improved. The roll changing hydraulic cylinder is arranged on the outer side of the frame, and has the advantage of convenience in maintenance. In addition, the invention presets and positions the spline teeth of the new roller by the roller template 17, so that the spline teeth of the new roller are accurately and quickly inserted into the spline sleeve of the transmission mechanism, the operation is simple and easy, the roller changing time is greatly shortened, and the productivity is obviously improved. The invention is applied to the field of medium plate straightening, has compact structure, high rigidity and rapid roll change, can realize reversible reciprocating straightening, has good plate shape correction, and particularly can meet the flatness requirement of thin high-strength steel plates.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.
Claims (8)
1. A multi-roll straightener comprises a main transmission mechanism, a universal spindle, a spindle holding mechanism, a stander, an upper roll device, a lower roll device, a pressing mechanism, a bending roll, a balance mechanism and a roll changing device, wherein an upper movable cross beam is arranged on the stander, the upper roll device is supported by the upper movable cross beam and is connected with the upper movable cross beam through a plurality of clamping devices, the clamping devices are fixedly arranged on the upper movable cross beam, the lower roll device comprises a lower row of straightening rolls, a lower roll device base and side rolls, and the side rolls are arranged on two sides of the lower row of straightening rolls; every chucking device include hydraulic cylinder body, double-rod piston and be used for with go up the T type head that the roller device is connected, the double-rod piston run through in the hydraulic cylinder body, set up the spiral slideway on the outer wall of the first piston rod of one side of double-rod piston, the end of the second piston rod of its opposite side with T type head is connected radially run through on the hydraulic cylinder body and be equipped with adjusting screw, adjusting screw stretches into stretch into in the hydraulic cylinder body end with the spiral slideway is corresponding be equipped with the pivoted steel ball on adjusting screw's the end of stretching into, the steel ball can be followed the spiral slideway rolls.
2. A multi-roll straightener as claimed in claim 1, wherein the edge roll lifting means comprises a plurality of lifters connected in series by a shaft rod and a coupling, a hydraulic motor is provided at the outer end of the shaft rod, the base of the lifter is fixed to the base of the lower roll means, and the lifter is in register abutment with the edge roll.
3. A multi-roll straightener as claimed in claim 2, characterized in that the edge roll lifting means are provided in two and are provided on the inlet side and the outlet side of the multi-roll straightener, respectively.
4. A multi-roll straightener as claimed in claim 1, wherein the end of the adjusting screw which extends into has an inwardly concave end face, the steel ball being rollably fitted onto the inwardly concave end face.
5. The multi-roll straightener as claimed in claim 1, wherein the end of the second piston rod is bolted to the T-head.
6. The multi-roll straightener as claimed in any one of the claims 1 to 5, characterized in that there are four said clamping means, two said clamping means being provided at the inlet side of the multi-roll straightener and two said clamping means being provided at the outlet side of the multi-roll straightener.
7. The multi-roll straightener as claimed in any one of claims 1 to 5, wherein the roll changing device is provided on the machine frame, the roll changing device comprises a roll changing hydraulic cylinder, a roll changing carriage and a roll changing track frame, the roll changing hydraulic cylinder is provided outside the machine frame, the roll changing hydraulic cylinder drives the roll changing carriage to slide along a track provided on the roll changing track frame, and the roll changing carriage is connected with the lower roll device through a connecting pin.
8. The multi-roll straightener as claimed in any one of claims 1 to 5, further comprising a pair of roll templates, the pair of roll templates comprising a steel plate and a plurality of round bars, wherein a plurality of circular arc grooves are formed on one side of the steel plate, and the plurality of round bars are respectively welded on predetermined positions of the circular arc grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104605029A CN102553975B (en) | 2011-12-31 | 2011-12-31 | Multi-roller straightener |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104605029A CN102553975B (en) | 2011-12-31 | 2011-12-31 | Multi-roller straightener |
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| Publication Number | Publication Date |
|---|---|
| CN102553975A CN102553975A (en) | 2012-07-11 |
| CN102553975B true CN102553975B (en) | 2013-11-13 |
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| CN2011104605029A Active CN102553975B (en) | 2011-12-31 | 2011-12-31 | Multi-roller straightener |
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| CN112296129A (en) * | 2020-08-22 | 2021-02-02 | 襄阳博亚精工机器有限公司 | Multi-roller straightener capable of quickly replacing roller box |
| CN112944891B (en) * | 2021-01-22 | 2022-07-22 | 东南大学 | Roller deformation adjusting device suitable for roller kiln |
| CN114074136B (en) * | 2021-10-14 | 2023-08-08 | 北京冶自欧博科技发展有限公司 | Connecting shaft enclasping device and method for multi-roll-distance roll changing of straightener |
| CN114505371B (en) * | 2021-12-29 | 2024-03-08 | 泰安华鲁锻压机床有限公司 | Leveler for long plate production |
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| CN102553975A (en) | 2012-07-11 |
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