CN115538770A - Roller die construction method for controlling verticality - Google Patents
Roller die construction method for controlling verticality Download PDFInfo
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- CN115538770A CN115538770A CN202211247465.8A CN202211247465A CN115538770A CN 115538770 A CN115538770 A CN 115538770A CN 202211247465 A CN202211247465 A CN 202211247465A CN 115538770 A CN115538770 A CN 115538770A
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 46
- 230000008569 process Effects 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 239000004567 concrete Substances 0.000 claims description 22
- 238000009415 formwork Methods 0.000 claims description 19
- 239000004568 cement Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000009194 climbing Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- Civil Engineering (AREA)
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Abstract
The invention provides a roller die construction method for controlling perpendicularity, belongs to the technical field of building construction, and mainly levels a roller die through two ground perpendicularity control devices to realize perpendicularity of a buttress. The construction process is more convenient, does not receive the objective factor influence of weather such as strong wind, big fog, can accomplish real-time observation, and in good time adjustment compares with plumb bob method, and the spirit level method can not receive the influence of strong wind weather, and plumb bob method needs the distance of measuring pier stud top simultaneously and bottom each side and plumb bob and calculates the difference, and constructor need frequently come and go from top to bottom at high mound, expend time for a long time. Compared with the conventional laser plummet method, the horizontal rule method has the advantages that the equipment cost is lower, the applicability to field construction is strong, and most constructors can observe and apply the method.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a roller die construction method for controlling verticality.
Background
The traditional perpendicularity control methods of the roller die include a plumb bob method, a total station observation method and a conventional laser plummet method. The plumb bob hanging method is that a plumb bob with the weight of about 10kg is hung by iron wires on the central point or four angular points of four surfaces of the pier body on a working platform, and the iron wires are wound on a small trolley, slowly pay off along with the climbing of the roller die device and keep the plumb bob 10-20 cm away from the ground. And measuring the deviation and torsion degree of the center of the pier body by measuring the difference between the hammer line at the bottom and the top of the pier column and the pier column surface or a predetermined point. In windy weather, the plumb bob may be placed in water or oil to reduce sway. The total station observation method is to measure the control points set on the ground and the corresponding points of the template positions by using a total station, calculate the offset and torsion of the center of the pier body according to the offset condition of the corresponding points on the template, and achieve the range of the standard requirement by repeatedly adjusting the template and repeatedly measuring. Erecting a foot rest on a bearing platform, installing a laser plummet, opening a downward laser beam emitting button, centering a point, accurately leveling the plummet, closing the downward emitting button, opening an upward laser beam emitting button, adjusting the focal length of an objective lens, enabling a laser beam to form a light spot with the diameter of 1mm on a target, firstly standing on a top layer turnover platform, pulling a steel tape measure from the corner of the template along the extension line of the inner edge of the template, overlapping one line of the central cross line of the laser target with the 50cm scale line of the steel tape measure, supporting the laser target to enable the plane of the laser target and the top of the template to be in the same horizontal plane, measuring the distance between the laser point and the 50cm scale line by using another steel tape measure and recording, sequentially measuring the deviation values of 4 points of a pier body, judging whether the plane position of the angle point of the template is qualified or not according to the standard, if one point exceeds the standard, readjusting the template and rechecking until the deviation value is in the standard qualified range.
The plumb bob method has the following defects: at present, the construction of high piers is mostly over 60 meters or even over 100 meters, because the plumb bob is exposed in an open environment, the higher the pier body is, the larger the wind power is, the larger the swing influence on the plumb bob is, and the precision cannot ensure continuous construction, so that the method is only suitable for low piers or used as an auxiliary method for control.
The total station method has the following defects: because mountain area high mound is higher and higher, brings heavy measurement task for survey crew, need survey crew to erect the prism and observe repeatedly during high pier template installation debugging, sometimes can be because when template deformation or other reasons adjustment template, need several hours or more of a specified duration, need measure and put mirror personnel high mound body about many times to it is bigger to measure the observation degree of difficulty evening, therefore this method only is suitable for daytime or under the special condition evening and surveys, seriously influences the construction progress.
The drawbacks of the conventional laser plummet method are: the adopted equipment such as the laser plummet, the laser target and the like is precise and complex, the cost is higher, the requirement on the pre-embedded precision of equipment installation is higher, and the operation and the maintenance are required by professional personnel. The field construction environment is complex, and the equipment is easy to damage, so that the equipment cannot be widely applied in practical application. Therefore, a construction method with faster and more precise construction needs to be designed.
Disclosure of Invention
The invention aims to provide a roller die construction method for controlling verticality, and solves the technical problems that the traditional roller die construction method for controlling verticality is low in precision, needs professional technical personnel to operate and is slow in construction.
As a more advanced pier stud construction process, the roller die process is quick and convenient to construct, but always has the problem of difficult control of the perpendicularity of the pier stud in actual construction.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a roller die construction method for controlling verticality comprises the following steps:
step 1: embedding a support upright post inside the reinforced concrete, wherein the support upright post is vertically arranged;
and 2, step: installing a roller die, leveling the top surface of the bearing platform by using mortar, and installing an outer frame and a template of the roller die according to a measured lofting side line;
and step 3: after the roller die is installed, placing ground perpendicularity control devices on any two adjacent sides of the outer frame of the roller die to level the roller die for the second time, and leveling the bottom of the roller die by using mortar;
and 4, step 4: installing a hydraulic lifting system on the top of the support upright, arranging a lifting cross rod on the top of the hydraulic lifting system, and connecting the roller die with the lifting cross rod;
and 5: pouring the pier stud, then lifting the outer frame of the roller die through a hydraulic lifting system, leveling through a verticality control device arranged on the outer frame of the roller die after lifting is completed, and repeating the steps.
Further, in the step 5, when concrete is poured, the height of the concrete is 90cm, 10cm is reserved in a template to serve as an operation interface for secondary installation, when pouring is completed for 12 hours, the outer frame of the roller die is lifted by 70cm, whether a pressure gauge of a hydraulic lifting system is normal or not is observed in the lifting process, if the pressure gauge is abnormal, lifting is stopped and reasons need to be found, the problem is solved and lifting is continued, and after the lifting is completed, the outer frame of the roller die is leveled by using the principle that two perpendicularity control devices form a plane on a cross line, and the verticality of the buttress is controlled.
Further, the verticality control device comprises a steel plate and a level ruler, the level ruler is horizontally arranged on the steel plate, the steel plate is fixedly connected with the outer frame, bolt holes are formed in four corners of the steel plate respectively, bolts are arranged to penetrate through the bolt holes to be fixedly arranged with the outer frame, a horizontal adjusting gasket is arranged at the bottom of the steel plate, and the horizontal adjusting gasket is fixedly arranged on the horizontal plate of the outer frame.
Further, the leveling principle process of the verticality control device is as follows: the outer frame of the roller die is a fixing device and can be regarded as a cuboid rigid body, 4 surfaces of the outer frame are kept in an absolute vertical state, two key points for controlling the pier column to be vertical are that when first die concrete is poured on a bearing platform, the outer frame and the template need to be integrally vertical to the ground, the verticality percentage can meet the design, only the elevation is changed on the coordinate when the subsequent roller die is lifted, the rest is unchanged, namely only the z is changed in the x axis, the y axis and the z axis of the coordinate, the x axis and the y axis are unchanged, two gradienters and the gradienters are intersected, the level is kept in the middle in real time, two intersecting lines in one plane are parallel to two lines in the other plane, the two planes are parallel, the outer frame and the template are integrally vertical to the ground in the lifting process, the top surface of the frame is parallel to the ground, and the pier column can be vertical to the ground.
Further, in the step 5, after the first pouring, a second formwork installation is carried out, the upper formwork and the lower formwork are connected through the male and female lock catches, angle steel is arranged at four corners of the formwork for connection and locking, after the second formwork is installed, concrete is poured for 30cm each time, then the first pouring is repeated for 6 times to form a period, and then the formwork at the bottom is detached for use.
Further, in the step 5, the template can be removed when the concrete is initially set, the initial setting time of C30 and C40 roller mold concrete at 20 ℃ is 6.5 hours, the initial setting time is delayed by 40-45 minutes when the temperature is reduced by 10 ℃, the initial setting time is advanced by 20-25 minutes when the temperature is increased by 10 ℃, the temperature is reduced by comparison with the same temperature, the influence on the initial setting time is large, the template can be removed after 7-8 hours when C50 roller mold concrete is prepared by 42.5-grade cement, and the template can be removed after 6.5-7 hours when 52.5-grade cement is adopted by adjusting the components and the doping amount of the admixture through trial distribution.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the construction process of the invention is more convenient, is not influenced by the objective factors of weather such as strong wind, heavy fog and the like, can realize real-time observation and timely adjustment, compared with the plumb bob method, the level bar method is not influenced by the weather of strong wind, and the plumb bob method needs to simultaneously measure the distance between each surface of the top and the bottom of the pier column and the plumb line to calculate the difference, so that constructors need to frequently go back and forth on the high pier, and the time consumption is longer. The method has the advantages that observation and adjustment of perpendicularity of the pier stud can be completed on the operation platform by adopting a horizontal ruler method, only one-time measurement rechecking is needed by using a plumb bob method during working and working, compared with a total station method, the horizontal ruler method does not need the participation of measuring personnel, a large amount of manpower and material resources can be saved for a roller die process of 24-hour continuous cycle construction operation, and the roller die process is not influenced by objective factors such as night, fog and the like.
Drawings
FIG. 1 is a sectional view of an implementation of the present invention;
FIG. 2 is a top view of an implementation of the present invention;
FIG. 3 is a schematic view of the ground verticality control plane structure according to the present invention;
fig. 4 is a schematic structural diagram of the ground verticality control device.
In the attached drawing, 1-buttress, 2-lifting support rod, 3-outer frame, 4-connecting rod, 5-lifting cross rod, 6-hydraulic climbing system, 7-ground verticality control device, 8-steel plate, 9-bolt hole and 10-level bar.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. It should be noted, however, that the numerous details set forth in the description are merely for the purpose of providing the reader with a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
As shown in fig. 1-2, a method for constructing a roll mold for controlling verticality, the method comprising the steps of:
step 1: the pre-buried support column is arranged inside the reinforced concrete and vertically arranged.
Step 2: and (3) installing a roller die, leveling the top surface of the bearing platform by using mortar, and installing an outer frame and a template of the roller die according to the measuring lofting side line.
And 3, step 3: after the roller die is installed, placing ground perpendicularity control devices on any two adjacent sides of the outer frame of the roller die to level the roller die for the second time, and leveling the bottom of the roller die by using mortar.
And 4, step 4: and a hydraulic lifting system is arranged at the top of the supporting upright column, a lifting cross rod is arranged at the top of the hydraulic lifting system, and the roller die is connected with the lifting cross rod.
And 5: pouring the pier stud, then lifting the outer frame of the roller die through a hydraulic lifting system, leveling the outer frame of the roller die through a verticality control device arranged on the outer frame of the roller die after lifting is finished, and repeating the steps.
Step 5, when concrete is poured, the height of the concrete is 90cm, 10cm is reserved for a template to serve as an operation interface for secondary installation, when the pouring is finished for 12 hours, the outer frame of the roller die is lifted by 70cm, whether a pressure gauge of a hydraulic lifting system is normal or not is observed in the lifting process, if the pressure gauge is abnormal, the lifting is stopped and the reason needs to be found, the problem is solved and the lifting is continued, the outer frame of the roller die is leveled by the principle that two perpendicularity control devices form a plane on a cross line after the lifting is finished, and the verticality of the buttress is controlled.
The leveling principle process of the verticality control device is as follows: the outer frame of the roller die is a fixing device and can be regarded as a cuboid rigid body, 4 surfaces of the outer frame are kept in an absolute vertical state, two key points for controlling the pier column to be vertical are that when first die concrete is poured on a bearing platform, the outer frame and the template need to be integrally vertical to the ground, the verticality percentage can meet the design, only the elevation is changed on the coordinate when the subsequent roller die is lifted, the rest is unchanged, namely only the z is changed in the x axis, the y axis and the z axis of the coordinate, the x axis and the y axis are unchanged, two gradienters and the gradienters are intersected, the level is kept in the middle in real time, two intersecting lines in one plane are parallel to two lines in the other plane, the two planes are parallel, the outer frame and the template are integrally vertical to the ground in the lifting process, the top surface of the frame is parallel to the ground, and the pier column can be vertical to the ground.
And step 5, after the first pouring is finished, installing a second formwork, connecting an upper formwork with a lower formwork through a male-female lock catch, arranging angle steel at four corners of the formwork for connection and locking, pouring concrete for 30cm each time after the second formwork is installed, repeating the first pouring for 6 times to form a period, and removing the formwork at the bottom for use.
In the step 5, the template can be removed when the concrete is initially set, the initial setting time of C30 and C40 roller mold concrete at 20 ℃ is 6.5 hours, the temperature is reduced by 10 ℃ every time, the initial setting time is delayed by 40-45 minutes, the temperature is increased by 10 ℃ every time, the initial setting time is advanced by 20-25 minutes, the temperature is reduced compared with the same temperature increase, and the influence on the initial setting time is large, when 42.5-grade cement is adopted to prepare C50 roller mold concrete, the template can be removed after 7-8 hours, and when 52.5-grade cement is adopted, the components and the doping amount of an additive can be adjusted through trial distribution, and the template can be removed after 6.5-7 hours.
The device comprises a buttress 1, a lifting support rod 2, an outer frame 3, a connecting rod 4, a lifting cross rod 5 and a hydraulic climbing system 6, wherein the lifting support rod 2 is vertically embedded in the buttress 1, the hydraulic climbing system 6 is arranged at the top of the lifting support rod 2, the lifting cross rod 5 is arranged at the top end of the hydraulic climbing system 6, the top of the connecting rod 4 is arranged at two ends of the lifting cross rod 5, and the outer frame 3 is connected with the bottom of the connecting rod 4. The device also comprises two ground verticality control devices 7, wherein the two ground verticality control devices 7 are respectively and horizontally arranged on two adjacent edges of the outer frame 3.
The number that promotes bracing piece 2 is 4, and the number that promotes horizontal pole 5 is two, and 1 promotes horizontal pole 5 and spanes on the jack on 2 tops of promotion bracing piece. The hydraulic climbing system 6 is composed of four jacks, a hydraulic display meter and the like, and mainly plays a role in vertically lifting the height. The outer frame 3 is a conventional outer frame structure of the roll mold.
In the roller die construction, the perpendicularity deviation of the pier body is caused by the deflection of the outer frame die set. Four surfaces of the outer frame die set of the roller die are bolted into a rigid whole which can be regarded as a cuboid structure, and when the top surface of the cuboid is parallel to the ground, the four side surfaces are vertical to the ground. And the levelness of the top surface in the lifting process of the roller die outer frame die set is ensured in the same way, and the verticality of the poured pier body can be ensured. A leveling rod is additionally arranged at the top of an outer frame die set of a roller die, so that the horizontal state of the outer frame die set can be visually judged, and the outer frame die set can be conveniently and timely adjusted.
In the embodiment of the invention, as shown in fig. 3-4, the ground verticality control device 7 comprises a steel plate 8 and a horizontal ruler 10, wherein the horizontal ruler 10 is horizontally arranged on the steel plate 8, and the steel plate 8 is horizontally and fixedly connected with the outer frame 3. The four corners of the steel plate 8 are respectively provided with bolt holes 9, and bolts are arranged to penetrate through the bolt holes 9 to be fixedly arranged with the outer frame 3. The bottom of steel sheet 8 is provided with the level (l) ing gasket, and the level (l) ing gasket is fixed to be set up on the horizontal plate of outer frame 3. The level 10 is embedded and fixed on the steel plate 8.
The outer frame of the roller die is a fixing device and can be regarded as a cuboid rigid body, 4 surfaces of the outer frame are kept in an absolute vertical state, two key points for controlling the pier stud to be vertical are that when first die concrete is poured on a bearing platform, the outer frame and a template need to be integrally vertical to the ground, the verticality percentage can meet the requirement that only elevation changes and the rest do not change on the coordinate when the subsequent roller die is designed to be lifted, coordinates (x, y and z) only change, the outer frame and the template are integrally vertical to the ground in the lifting process, and the top surface of the frame is parallel to the ground, so that the pier stud can be vertical to the ground as long as the top surface of the frame is always parallel to the ground. Two gradienters are installed and intersect, the level is kept in the middle in real time, two intersecting lines in one plane are parallel to two lines of the other plane, the two planes are parallel, the outer frame of the roller die is a fixing device, the roller die can be regarded as a rigid cuboid, 4 surfaces of the cuboid can be kept in an absolute vertical state and are perpendicular to the ground.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and amendments can be made without departing from the principle of the present invention, and these modifications and amendments should also be considered as the protection scope of the present invention.
Claims (6)
1. A roller die construction method for controlling verticality is characterized in that: the method comprises the following steps:
step 1: embedding a support upright column in reinforced concrete, wherein the support upright column is vertically arranged;
and 2, step: mounting a roller die, leveling the top surface of the bearing platform by using mortar, and mounting an outer frame and a template of the roller die according to a measuring lofting side line;
and 3, step 3: after the roller die is installed, placing ground perpendicularity control devices on any two adjacent sides of the outer frame of the roller die to level the roller die for the second time, and leveling the bottom of the roller die by using mortar;
and 4, step 4: installing a hydraulic lifting system on the top of the support upright, arranging a lifting cross rod on the top of the hydraulic lifting system, and connecting the roller die with the lifting cross rod;
and 5: pouring the pier stud, then lifting the outer frame of the roller die through a hydraulic lifting system, leveling the outer frame of the roller die through a verticality control device arranged on the outer frame of the roller die after lifting is finished, and repeating the steps.
2. The roller die construction method for controlling verticality according to claim 1, wherein: step 5, when concrete is poured, the height of the concrete is 90cm, 10cm is reserved for a template to serve as an operation interface for secondary installation, when the pouring is finished for 12 hours, the outer frame of the roller die is lifted by 70cm, whether a pressure gauge of a hydraulic lifting system is normal or not is observed in the lifting process, if the pressure gauge is abnormal, the lifting is stopped and the reason needs to be found, the problem is solved and the lifting is continued, the outer frame of the roller die is leveled by the principle that two perpendicularity control devices form a plane on a cross line after the lifting is finished, and the verticality of the buttress is controlled.
3. A roller die construction method for controlling verticality according to claim 2, characterized in that: the verticality control device comprises a steel plate and a level ruler, the level ruler is horizontally arranged on the steel plate, the steel plate is fixedly connected with the outer frame in a horizontal mode, bolt holes are formed in four corners of the steel plate respectively, bolts are arranged to penetrate through the bolt holes to be fixedly arranged with the outer frame, a horizontal adjusting gasket is arranged at the bottom of the steel plate, and the horizontal adjusting gasket is fixedly arranged on the horizontal plate of the outer frame.
4. The roller die construction method for controlling verticality according to claim 3, wherein: the leveling principle process of the verticality control device is as follows: the outer frame of the roller die is a fixing device and can be regarded as a cuboid rigid body, 4 surfaces of the outer frame are kept in an absolute vertical state, two key points for controlling the pier column to be vertical are that when first die concrete is poured on a bearing platform, the outer frame and the template need to be integrally vertical to the ground, the verticality percentage can meet the design, only the elevation is changed on the coordinate when the subsequent roller die is lifted, the rest is unchanged, namely only the z is changed in the x axis, the y axis and the z axis of the coordinate, the x axis and the y axis are unchanged, two gradienters and the gradienters are intersected, the level is kept in the middle in real time, two intersecting lines in one plane are parallel to two lines in the other plane, the two planes are parallel, the outer frame and the template are integrally vertical to the ground in the lifting process, the top surface of the frame is parallel to the ground, and the pier column can be vertical to the ground.
5. A roller die construction method for controlling verticality according to claim 4, characterized in that: and 5, after the second formwork is poured once, installing the formwork for the second time, connecting the upper formwork with the lower formwork through the male and female lock catches, arranging angle steel at the four corners of the formwork for connection and locking, pouring concrete for 30cm each time after the second formwork is installed, repeating pouring for 6 times for one period, and then removing the formwork at the bottom for use.
6. The roller die construction method for controlling verticality according to claim 5, wherein: in the step 5, the template can be removed when the concrete is initially set, the initial setting time of C30 and C40 roller mold concrete at 20 ℃ is 6.5 hours, the temperature is reduced by 10 ℃ every time, the initial setting time is delayed by 40-45 minutes, the temperature is increased by 10 ℃ every time, the initial setting time is advanced by 20-25 minutes, the temperature is reduced compared with the same temperature increase, and the influence on the initial setting time is large, when 42.5-grade cement is adopted to prepare C50 roller mold concrete, the template can be removed after 7-8 hours, and when 52.5-grade cement is adopted, the components and the doping amount of an additive can be adjusted through trial distribution, and the template can be removed after 6.5-7 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211247465.8A CN115538770A (en) | 2022-10-12 | 2022-10-12 | Roller die construction method for controlling verticality |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211247465.8A CN115538770A (en) | 2022-10-12 | 2022-10-12 | Roller die construction method for controlling verticality |
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| Publication Number | Publication Date |
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| CN115538770A true CN115538770A (en) | 2022-12-30 |
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|---|---|---|---|
| CN202211247465.8A Pending CN115538770A (en) | 2022-10-12 | 2022-10-12 | Roller die construction method for controlling verticality |
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- 2022-10-12 CN CN202211247465.8A patent/CN115538770A/en active Pending
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