CN210614655U - Automatic adjusting device for roll gap of rolling mill - Google Patents

Automatic adjusting device for roll gap of rolling mill Download PDF

Info

Publication number
CN210614655U
CN210614655U CN201921263424.1U CN201921263424U CN210614655U CN 210614655 U CN210614655 U CN 210614655U CN 201921263424 U CN201921263424 U CN 201921263424U CN 210614655 U CN210614655 U CN 210614655U
Authority
CN
China
Prior art keywords
adjusting
roll gap
shafts
rolling mill
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201921263424.1U
Other languages
Chinese (zh)
Inventor
陈莹卷
陈连运
高爱民
穆杨
周民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CISDI Technology Research Center Co Ltd
Original Assignee
CISDI Technology Research Center Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CISDI Technology Research Center Co Ltd filed Critical CISDI Technology Research Center Co Ltd
Priority to CN201921263424.1U priority Critical patent/CN210614655U/en
Application granted granted Critical
Publication of CN210614655U publication Critical patent/CN210614655U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Control Of Metal Rolling (AREA)

Abstract

The utility model relates to a rolling mill roll gap automatic regulating apparatus belongs to metallurgical equipment technical field. The roll gap adjusting device comprises a roll gap adjusting unit, two roll shafts, an angle detecting element and a control unit, wherein the roll gap adjusting unit comprises two adjusting shafts arranged in parallel and a driving unit used for driving the two adjusting shafts to rotate; the control unit is respectively connected with the angle detection element and the driving unit. The angle detection element detects the actual value of the roll gap, the diameter gauge detects the actual size of the rolled piece after rolling, the control unit controls the driving unit to rotate the adjusting shaft to adjust the roll gap, the size of the roll gap is adjusted in a self-adaptive mode, the set value of the roll gap does not need to be adjusted manually, the size precision of the rolled piece is improved, and the labor intensity of workers is reduced.

Description

Automatic adjusting device for roll gap of rolling mill
Technical Field
The utility model belongs to the technical field of metallurgical equipment, a rolling mill roll gap automatic regulating apparatus is related to.
Background
Modern high-speed wire rod production equipment usually adopts a cantilever type rolling mill to realize top-crossed 45-degree twist-free rolling and high-speed rolling. The technology is introduced to the present, wherein the roll gap of the rolling mill is always manually adjusted and detected, the automation level is low, the stress condition of the rolling mill is complex, the roll gap is often changed due to different working conditions such as materials, loads and the like, and the manual adjustment of the roll gap is difficult to perform real-time online detection and adjustment on the size of the roll gap according to the change of the roll gap. And because the roll gap can not be manually adjusted through real-time online detection and adjustment, the roll gap can not be adjusted in a self-adaptive manner according to the outlet size of a rolled piece, and the size precision of the whole strip of the wire can not be ensured.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides an automatic roll gap adjusting device for a rolling mill, which is used for automatically and continuously adjusting the roll gap of the rolling mill.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a rolling mill roll gap automatic regulating apparatus, is in including roll gap regulating unit and setting two last roller of roll gap regulating unit, two roller parallel arrangement, roll gap regulating unit includes two parallel arrangement's adjustment axle and is used for driving two adjustment axle pivoted drive unit, the axis of adjustment axle is on a parallel with the axis of roller, two the adjustment axle rotates around its axis incorgruous respectively, two the roller is eccentric settings respectively two the adjustment axle is kept away from drive unit's one is served, two interval between the adjustment axle is adjustment interaxial, two the roller about the median plane symmetry setting of adjustment interaxial interval still includes angle detection component and control unit, be equipped with on the angle detection component and detect the gear, the axis of detecting the gear is on a parallel with the axis of adjustment axle, at least one be provided with around its axis on the adjustment axle with detect the gear cooperation and use detection rack The detection gear is meshed with the detection rack; the control unit is respectively connected with the angle detection element and the driving unit.
Optionally, the driving unit includes two adjusting nuts and a driving screw rod, the driving screw rod is perpendicular to the axis of the adjusting shaft, and two ends of the driving screw rod are respectively provided with threaded sections with opposite turning directions.
Optionally, the two adjusting nuts are respectively symmetrically arranged on the two threaded sections, the two adjusting nuts are respectively connected with the two adjusting shafts in a sliding manner, the driving screw rod rotates in the two adjusting nuts, and the two adjusting nuts symmetrically move along the extending direction of the driving screw rod.
Optionally, the driving unit further comprises a driving motor and a transmission gear set, wherein the driving motor is used for driving the driving screw rod to rotate, and the driving motor is connected with the driving screw rod through the transmission gear set.
Optionally, the transmission gear sets are connected to two ends of the driving screw rod, and the driving motor is simultaneously driven to the two ends of the driving screw rod through the transmission gear sets.
Optionally, the detection device further comprises two detection elements and a detection rod, one end of the detection rod is fixedly connected to one of the two adjusting shafts, the detection rod rotates along with the adjusting shafts, the other end of the detection rod swings between the two detection elements, the two detection elements are respectively arranged at the maximum rotation positions on two sides of the detection rod, and the two detection elements are connected with the control unit.
Optionally, the adjusting device further comprises two limit stops and a limit rod arranged on the adjusting shaft, one end of the limit rod is fixedly connected to one of the two adjusting shafts, the limit rod rotates along with the adjusting shaft, the other end of the limit rod swings between the two limit stops, and the two limit stops are respectively arranged at the maximum rotating positions on two sides of the limit rod.
Optionally, the adjusting device further comprises a rolling mill transmission box, and the two adjusting shafts are rotatably arranged on the rolling mill transmission box.
Optionally, a support is arranged on the rolling mill transmission case, and the angle detection element is fixedly arranged on the rolling mill transmission case through the support.
Optionally, the device further comprises a diameter gauge for detecting the size of the rolled piece, and the diameter gauge is connected with the control unit.
Optionally, the control unit, the driving motor, the angle detection element and the detection element all adopt external power supplies.
The beneficial effects of the utility model reside in that:
(1) the utility model discloses an angle detecting element detects the actual value of roll gap, realizes the adjustment of roll gap through the rotatory adjustment shaft rotation of the control unit control drive unit, and then has realized the automatic adjustment of roll gap, need not artifical adjustment, has the real-time, has reduced workman intensity of labour, has improved the logical strip size accuracy of rolled piece;
(2) the utility model discloses a rolling piece actual size after the calliper detects the roll-in, through the rotatory adjustment that realizes the roll gap of the rotatory adjustment axle of the drive unit control drive unit of control unit, carry out self-adaptation adjustment to the roll gap size according to rolling piece actual size, need not to have improved the logical strip size precision of rolling piece according to the artifical adjustment roll gap setting value of rolling piece size, reduced workman intensity of labour.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of an automatic roll gap adjusting device of a rolling mill;
FIG. 2 is a sectional view of a roll gap adjusting unit of an automatic roll gap adjusting apparatus for a rolling mill;
FIG. 3 is a partial sectional view of an angle detecting element of an automatic roll gap adjusting apparatus for a rolling mill;
FIG. 4 is a sectional view showing the position of a detection lever of the automatic roll gap adjusting apparatus in the rolling mill according to embodiment 1;
fig. 5 is a sectional view of a position of a stop lever of an automatic roll gap adjusting device of a rolling mill in embodiment 2.
Reference numerals: the device comprises a roll gap adjusting unit 1, a roll shaft 2, an adjusting shaft 3, a driving unit 4, a roll gap detecting unit 5, an angle detecting element 6, a detecting rack 7, a detecting gear 8, a driving element 9, a transmission gear set 10, a driving screw rod 11, an adjusting nut 12, a limiting rod 13, a limiting stopper 14, a limiting stopper 15 and a limiting rod 16.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Example 1
Referring to fig. 1 to 4, an automatic roll gap adjusting device for a rolling mill comprises a roll gap adjusting unit 1 and two roll shafts 2 arranged on the roll gap adjusting unit 1, wherein the two roll shafts 2 are arranged in parallel, the roll gap adjusting unit 1 comprises two adjusting shafts 3 arranged in parallel and a driving unit 4 for driving the two adjusting shafts 3 to rotate, the axes of the adjusting shafts 3 are parallel to the axes of the roll shafts 2, the two adjusting shafts 3 respectively rotate around the respective axes in different directions, the two roll shafts 2 are respectively eccentrically arranged at one ends of the two adjusting shafts 3 far away from the driving unit 4, the distance between the two adjusting shafts 3 is the distance between the adjusting shafts, the two roll shafts 2 are symmetrically arranged about the median plane of the distance between the adjusting shafts, the automatic roll gap adjusting device further comprises an angle detecting element 6 and a control unit (not shown), a detecting gear 8 is arranged on the angle detecting element 6, the axis of the detecting gear 8 is parallel to the axes of the adjusting shafts 3, a detection rack 7 matched with a detection gear 8 is arranged on at least one adjusting shaft 3 around the axis of the adjusting shaft, and the detection gear 8 is meshed with the detection rack 7; the control unit is connected to the angle detection element 6 and the drive unit 4, respectively.
In this embodiment, the driving unit 4 includes two adjusting nuts 12 with opposite screw threads and a driving screw rod 11, the extending direction of the driving screw rod 11 is perpendicular to the axis direction of the adjusting shaft 3, two ends of the driving screw rod 11 are respectively provided with screw thread sections with opposite screw threads, the two adjusting nuts 12 are respectively symmetrically arranged on the two screw thread sections, the two adjusting nuts 12 are respectively slidably connected with the two adjusting shafts 3, the driving screw rod 11 simultaneously rotates in the two adjusting nuts 12 with opposite screw threads, and the two adjusting nuts 12 symmetrically move along the extending direction of the driving screw rod 11. The driving unit 4 further comprises a driving motor 9 and a transmission gear set 10, wherein the driving motor 9 is used for driving the driving screw rod 11 to rotate, and the driving motor 9 is connected with the driving screw rod 11 through the transmission gear set 10. The transmission gear sets 10 are connected to two ends of the driving screw rod 11, and the driving motor 9 is driven to two ends of the driving screw rod 11 through the transmission gear sets 10. In this embodiment, the device further includes two detecting elements 14 and a detecting rod 13, one end of the detecting rod 13 is fixedly connected to one of the two adjusting shafts 3, the detecting rod 13 rotates along with the adjusting shafts 3, the other end of the detecting rod 13 swings between the two detecting elements 14, the two detecting elements 14 are respectively arranged at the maximum rotating positions on two sides of the detecting rod 13, and the two detecting elements 14 are connected with the control unit. In this embodiment, the device further comprises a rolling mill transmission case 5, and the two adjusting shafts 3 are rotatably arranged on the rolling mill transmission case 5. The rolling mill transmission case 5 is provided with a support, and the angle detection element 6 is fixedly arranged on the rolling mill transmission case 5 through the support. The control unit, the driving motor 9, the angle detection element 6 and the detection element 14 all adopt external power supplies.
When in actual use, inputting a set value of a roll gap into the control unit; the angle detection element 6 obtains the angle of the adjusting shaft 3 according to the rotation angle of the detection gear 8 and transmits the angle to the control unit, the control unit calculates the actual value of the roll gap, the control unit controls the driving motor 9 to act according to the actual value of the roll gap, the driving motor 9 drives the screw rod 11 to rotate through the transmission gear set 10, the screw rod 11 drives the adjusting nut 12 to drive the adjusting shaft 3 to rotate, the roll shafts 2 are eccentrically arranged on the adjusting shaft 3, the size of the roll gap between the two roll shafts 2 is changed, and the actual size adjustment of the roll gap is realized; the detection rack 7 rotates along with the adjusting shaft 3, the detection gear 8 meshed with the detection rack 7 feeds back the angle of the rotating adjusting shaft 3 to the control unit, and the steps are repeated until the actual value of the roll gap is the same as the set value of the roll gap.
The two detection elements 14 are respectively arranged at the maximum rotation positions at the two sides of the detection rod 13, when the adjusting nut 12 moves to the maximum position, the detection rod 13 triggers the detection elements 14, the detection rod 13 inputs signals into the control unit, and the control unit controls the driving motor 9 to stop acting, so that the adjusting nut 12 is prevented from being pulled out from the driving screw rod 11.
Example 2
Referring to fig. 5, in this embodiment, the automatic adjusting device for roll gap of rolling mill further includes two limit stops 15 and a limit rod 16 disposed on the adjusting shaft 3, one end of the limit rod 16 is fixedly connected to one of the two adjusting shafts 3, the limit rod 16 rotates along with the adjusting shaft 3, the other end of the limit rod 16 swings between the two limit stops 15, and the two limit stops 15 are disposed at maximum rotation positions on two sides of the limit rod 16 respectively.
During practical use, the two limit stops 15 are respectively arranged at the maximum rotation positions on the two sides of the limit rod 16, and when the adjusting nut 12 moves to the maximum position, the limit stops 15 limit the limit rod 16 to continue moving, so that the adjusting shaft 3 is prevented from continuing rotating, and the adjusting nut 12 is prevented from being disengaged from the driving screw rod 11.
Example 3
Referring to fig. 1 to 4, an automatic roll gap adjusting device for a rolling mill further includes a diameter measuring instrument (not shown) for measuring the size of a wire rod, and the diameter measuring instrument is connected to a control unit.
When in actual use, the set size of the rolled piece is input into the control unit; the diameter measuring instrument detects the actual size of a rolled piece and transmits the actual size to the control unit, the control unit controls the action of the driving motor 9 according to the actual size of the rolled piece, the driving motor 9 drives the driving screw rod 11 to rotate through the transmission gear set 10, the driving screw rod 11 drives the adjusting nut 12 to drive the adjusting shaft 3 to rotate, the roll shafts 2 are eccentrically arranged on the adjusting shaft 3, the size of a roll gap between the two roll shafts 2 is changed, and the set size of the rolled piece is adjusted; the detection rack 7 rotates along with the adjusting shaft 3, the detection gear 8 meshed with the detection rack 7 feeds back the angle of the rotating adjusting shaft 3 to the control unit, the diameter gauge feeds back the changed size of the rolled piece to the control unit, and the steps are repeated until the actual size of the rolled piece is the same as the set size of the rolled piece.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims (10)

1. The automatic roll gap adjusting device for the rolling mill comprises a roll gap adjusting unit and two roll shafts arranged on the roll gap adjusting unit, wherein the two roll shafts are arranged in parallel;
the roll gap adjusting unit comprises two adjusting shafts arranged in parallel and a driving unit used for driving the two adjusting shafts to rotate, the axes of the adjusting shafts are parallel to the axes of the roll shafts, and the two adjusting shafts rotate around the axes in different directions;
the two roll shafts are respectively eccentrically arranged at one ends of the two adjusting shafts far away from the driving unit, the distance between the two adjusting shafts is the adjusting shaft distance, and the two roll shafts are symmetrically arranged around the perpendicular plane of the adjusting shaft distance;
the method is characterized in that: the angle detection element is provided with a detection gear, the axis of the detection gear is parallel to the axis of the adjusting shafts, at least one adjusting shaft is provided with a detection rack around the axis thereof, the detection rack is matched with the detection gear, and the detection gear is meshed with the detection rack; the control unit is respectively connected with the angle detection element and the driving unit.
2. The automatic roll gap adjusting device of a rolling mill according to claim 1, characterized in that: the driving unit comprises two adjusting nuts and a driving screw rod, the driving screw rod is perpendicular to the axis of the adjusting shaft, and two ends of the driving screw rod are respectively provided with threaded sections with opposite screwing directions.
3. The automatic roll gap adjusting device of a rolling mill according to claim 2, characterized in that: the two adjusting nuts are symmetrically arranged on the two thread sections respectively, the two adjusting nuts are slidably connected with the two adjusting shafts respectively, the driving screw rod rotates in the two adjusting nuts, and the two adjusting nuts move symmetrically along the extending direction of the driving screw rod.
4. The automatic roll gap adjusting device of a rolling mill according to claim 2, characterized in that: the driving unit further comprises a driving motor and a transmission gear set, wherein the driving motor is used for driving the driving screw rod to rotate, and the driving motor is connected with the driving screw rod through the transmission gear set.
5. The automatic roll gap adjusting device of a rolling mill according to claim 4, characterized in that: the transmission gear sets are connected to two ends of the driving screw rod, and the driving motor is simultaneously driven to the two ends of the driving screw rod through the transmission gear sets.
6. The automatic roll gap adjusting device of a rolling mill according to claim 1, characterized in that: the detection device is characterized by further comprising two detection elements and a detection rod, wherein one end of the detection rod is fixedly connected to one of the two adjusting shafts, the detection rod rotates along with the adjusting shafts, the other end of the detection rod swings between the two detection elements, the two detection elements are respectively arranged at the maximum rotating positions of two sides of the detection rod, and the two detection elements are connected with the control unit.
7. The automatic roll gap adjusting device of a rolling mill according to claim 1, characterized in that: the adjustable limiting device is characterized by further comprising two limiting stop blocks and a limiting rod arranged on the adjusting shaft, one end of the limiting rod is fixedly connected to one of the two adjusting shafts, the limiting rod rotates along with the adjusting shaft, the other end of the limiting rod swings between the two limiting stop blocks, and the two limiting stop blocks are arranged at the maximum rotating positions on the two sides of the limiting rod respectively.
8. The automatic roll gap adjusting device of a rolling mill according to claim 1, characterized in that: the adjusting device further comprises a rolling mill transmission box, and the two adjusting shafts are rotatably arranged on the rolling mill transmission box.
9. The automatic roll gap adjusting device of a rolling mill according to claim 8, wherein: the rolling mill transmission case is provided with a support, and the angle detection element is fixedly arranged on the rolling mill transmission case through the support.
10. The automatic roll gap adjusting device of a rolling mill according to claim 1, characterized in that: the device also comprises a diameter measuring instrument for detecting the size of the rolled piece, and the diameter measuring instrument is connected with the control unit.
CN201921263424.1U 2019-08-06 2019-08-06 Automatic adjusting device for roll gap of rolling mill Active CN210614655U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921263424.1U CN210614655U (en) 2019-08-06 2019-08-06 Automatic adjusting device for roll gap of rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921263424.1U CN210614655U (en) 2019-08-06 2019-08-06 Automatic adjusting device for roll gap of rolling mill

Publications (1)

Publication Number Publication Date
CN210614655U true CN210614655U (en) 2020-05-26

Family

ID=70754821

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921263424.1U Active CN210614655U (en) 2019-08-06 2019-08-06 Automatic adjusting device for roll gap of rolling mill

Country Status (1)

Country Link
CN (1) CN210614655U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110303054A (en) * 2019-08-06 2019-10-08 中冶赛迪技术研究中心有限公司 A kind of mill roll-gap automatic regulating apparatus and its application method
CN112496035A (en) * 2020-11-06 2021-03-16 太原科技大学 Method for roll forming of special metal pole plate rolling machine
CN114054554A (en) * 2021-11-23 2022-02-18 北方工业大学 Roll bending forming equipment auxiliary system capable of automatically adjusting roll gap
CN114700374A (en) * 2022-03-25 2022-07-05 山东国创燃料电池技术创新中心有限公司 Control method for special roller press
CN117444104A (en) * 2023-12-20 2024-01-26 山西成双法兰股份有限公司 Ring rolling forming die and forming method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110303054A (en) * 2019-08-06 2019-10-08 中冶赛迪技术研究中心有限公司 A kind of mill roll-gap automatic regulating apparatus and its application method
CN112496035A (en) * 2020-11-06 2021-03-16 太原科技大学 Method for roll forming of special metal pole plate rolling machine
CN114054554A (en) * 2021-11-23 2022-02-18 北方工业大学 Roll bending forming equipment auxiliary system capable of automatically adjusting roll gap
CN114700374A (en) * 2022-03-25 2022-07-05 山东国创燃料电池技术创新中心有限公司 Control method for special roller press
CN117444104A (en) * 2023-12-20 2024-01-26 山西成双法兰股份有限公司 Ring rolling forming die and forming method thereof
CN117444104B (en) * 2023-12-20 2024-03-19 山西成双法兰股份有限公司 Ring rolling forming die and forming method thereof

Similar Documents

Publication Publication Date Title
CN210614655U (en) Automatic adjusting device for roll gap of rolling mill
CN103028461B (en) Double-geared roller strong graded crusher capable of adjusting and controlling particle size continuously
CN108217057A (en) A kind of broad-adjustable transmission device
CN107737855A (en) A kind of controllable cable bend device of cable bend angle
EP2942105A1 (en) Roller mill and method for controlling a roller mill
CN110303054A (en) A kind of mill roll-gap automatic regulating apparatus and its application method
CN208083554U (en) Can on-line tuning blade clearance differential speed cutting flying shear
CN207516178U (en) A kind of reinforcing steel bar bending tester adjusted using gear
CN207872788U (en) A kind of small size automatic veneer reeling machine
CN206369534U (en) Tractor crankshaft device
DE102004028558A1 (en) Method and measuring arrangement for measuring play on an axle joint
CN107024307A (en) Ball screw assembly, moment detector
EP2489445B1 (en) Device with a number of cold rolling assemblies
DE202015106156U1 (en) rolling mill
CN110056642A (en) The regulating device and towing winch of gear pair backlash
CN106734231A (en) Press roll clearance adjustment apparatus and method of adjustment
JP5623202B2 (en) Roller spacing control device for roller guide
KR101184944B1 (en) Apparatus for measuring movement of pair cross
CN211235261U (en) Universal material testing machine
CN207170554U (en) A kind of pipe fitting machine straightening device
CN203599213U (en) Device for automatic adjustment of rolling mill roll-gap inclining value
CN206588157U (en) A kind of online quick adjustment guide beam
WO2023169279A1 (en) Monitoring method for roll gap between grinding rollers of flour mill
DE102015208735A1 (en) Screwing unit and method for screwing a screw into a workpiece
CN111940509B (en) Method for calibrating feed rotation motion synchronism of seamless steel tube cold rolling mill

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant