Roll collar and roll gap adjusting sample suitable for tail clamp of high-speed bar production line
By adjusting the uniformly designed roller ring hole shape and standard sample block, the problem of unreasonable clamping device hole shape design was solved, which improved clamping stability and production efficiency and avoided steel stacking accidents.
Patent Information
- Application Number
- CN202422939040.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The existing clamping device has an unreasonable roller ring hole design, which requires multiple roller rings to accommodate different specifications of rolled parts, increasing the frequency of replacement and the randomness of adjustment, and is prone to high-speed steel loading failures and steel piling accidents.
The roller ring design adopts a uniform aperture shape, combined with aperture clamping plate, standard sample block and standard sample bar. By using standard sample block and sample bar, the roller gap adjustment is simplified, the types of roller rings are reduced, and the clamping contact area is increased by optimizing the roller gap adjustment, thus ensuring clamping stability.
It reduces the adjustment time of the roller gap between the roller ring and the clamping tail, improves the efficiency of the production line, avoids unstable clamping and product quality problems, and reduces the accident rate.
Smart Images
Figure CN223603119U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to metallurgical equipment technical field, further belongs to the rolling equipment technical field, specifically relates to a kind of roll ring and roll gap adjustment sample of simple structure, reliable in use, suitable for high-speed bar production line tail clamp. BACKGROUND
[0002] China is a big country of steel production, high-speed bar production line has been very common in profile production in China. After billet is rolled into bar by rolling mill, the rolled piece is cut into length optimized segment by high-speed multiple shear, and is cut into multiple that adapt to the length of cooling bed. After segmenting, the rolled piece is sent to rack stepping type cooling bed by hub one by one after being braked by tail clamp, and the rolled piece is naturally cooled while stepping on the cooling bed. Before cooling bed, the rolled piece is aligned to the output direction of cooling bed by alignment roller, and then is formed into row of steel group by chain type transfer machine according to certain interval and quantity, and is sent to cooling bed output roller by unloading device. The steel is sent forward in row by cooling bed output roller, and the bar is cut into corresponding fixed length by cold shear after being fixed by fixed length machine. The rolled piece is cut into multiple by high-speed continuous operation shear, and the maximum speed of the rolled piece cut by shear can reach 45m / s. Tail clamp is used as braking equipment, and the rolled piece is braked from 45m / s linear speed instantaneously, and enters cooling bed. The requirement for tail clamp is very high. If the tail clamp is not clamped stably, the braking capacity of tail clamp is affected, and steel stacking production accident is caused, and subsequent production process is affected. The tail clamp used at present has the following deficiencies in roll gap adjustment.
[0003] 1. The pass design of roll ring is unreasonable, and each pass can only be used for one specification of rolled piece. For example, three kinds of roll rings are needed for conventional production of Ø12mm, Ø14mm and Ø16mm rolled piece, which increases the type of roll ring and the frequency of roll ring replacement.
[0004] 2. Due to the influence of roll ring pass, rolled piece size, roll gap and roll ring adjustment method, high-speed steel feeding failure often occurs, and even causes steel stacking.
[0005] 3. As the adjustment mechanism of tail clamp wears with the increase of use time, the gap becomes larger, and the opening also changes. At present, the manual adjustment method has great randomness, and the size of opening changes unstably, which causes unstable clamping of tail clamp. At the same time, because the size of finished bar changes and fluctuates within a certain range, clamping is also unstable. Therefore, the pass determination of tail clamp roll ring, the adjustment of roll gap and the setting of parameters are always the difficulties that need to be solved in high-speed bar production line.
[0006] Therefore, it is the key to solve this problem to develop a kind of roll ring and roll gap adjustment sample of simple structure, reliable in use, suitable for high-speed bar production line tail clamp. Practical new type content
[0007] The utility model discloses a simple structure, reliable, applicable to the roll ring and roll gap adjustment sample of high -speed bar production line tail clamp.
[0008] The utility model discloses a roll ring, hole type card board, standard sample block, standard sample bar constitute, the hole type of roll ring is optimized design, and the roll ring hole type of three specifications (Ø12mm,Ø14mm,Ø16mm) is unified as a common hole type, and this reduces the kind of roll ring, the thickness of three minimum roll gap standard sample block of six specifications of standard sample block is 4mm, 5mm, 6mm respectively, and the thickness of three maximum roll gap standard sample block is 9mm, 11mm, 13mm respectively, and standard sample bar is three specifications (Ø12mm,Ø14mm,Ø16mm) corresponding with bar specification, when rolling different specifications bar, only need to use the different specifications standard sample block and standard sample bar after unification to the simple adjustment of tail clamp roll gap can produce, reduces a large amount of downtime, improves the efficiency of production line, reduces the complicated roll gap adjustment link of before, also saves roll ring simultaneously, improves the utilization of roll ring.
[0009] The utility model discloses a roll ring, hole type card board, standard sample block, standard sample bar constitute, the hole type of roll ring is optimized design, and the roll ring hole type of three specifications (Ø12mm,Ø14mm,Ø16mm) is unified as a common hole type, and this reduces the kind of roll ring, the thickness of three minimum roll gap standard sample block of six specifications of standard sample block is 4mm, 5mm, 6mm respectively, and the thickness of three maximum roll gap standard sample block is 9mm, 11mm, 13mm respectively, and standard sample bar is three specifications (Ø12mm,Ø14mm,Ø16mm) corresponding with bar specification, when rolling different specifications bar, only need to use the different specifications standard sample block and standard sample bar after unification to the simple adjustment of tail clamp roll gap can produce, reduces a large amount of downtime, improves the efficiency of production line, reduces the complicated roll gap adjustment link of before, also saves roll ring simultaneously, improves the utilization of roll ring.
[0010] The roll ring has R25mm~R30mm arc hole type, and the arc surface width is 25mm, and the wear condition can be compared and checked and replaced by the corresponding hole type card board. The arc hole type and the corresponding moderate contact surface area of φ12mm, φ14mm and φ16mm specification bar can adjust the contact area of the tail clamp roll ring and the bar, and when the clamping pressure of the tail clamp cylinder is reduced to ≤0.25Mpa or less, the clamping contact area and the friction can be adjusted to increase the straightening effect of the clamped bar, the appropriate tail clamp outlet speed is obtained, the tail of the high-speed moving bar is better controlled, the bar and the tail are prevented from being bent and deformed, the high-speed bar is smoothly entered into the upper steel hub of the cooling bed, and the steel hub clamping fault and accident are avoided.
[0011] Further, the moderate increase of the contact area between the tail gripper roller ring and the bar avoids the dragging straightening effect that needs a larger cylinder clamping pressure for the non-punch tail gripper roller ring, avoids the overwhelming and flattening effect of the larger clamping cylinder pressure on the bar transverse ribs and longitudinal ribs, maintains the shape and size precision of the φ12mm, φ14mm and φ16mm high-speed bar threads, transverse ribs and longitudinal ribs to meet the product standard requirements, and avoids the occurrence of product quality problems.
[0012] The utility model discloses a tail gripper roller gap adjustment for rolling φ12mm, φ14mm and φ16mm high-speed bars, which needs to use the standard sample block, standard sample bar and pass line card shown in table 1.
[0013] Taking the tail gripper roller gap adjustment for rolling φ16mm high-speed bars as an example, the roller gap adjustment steps are as follows:
[0014] 1, 13mm maximum roller gap adjustment
[0015] 1.1 pull out the maximum roller gap adjustment locking pin of the tail gripper adjustment device, insert the 13mm maximum roller gap standard sample block corresponding to φ16mm specification shown in table 1 between the two roller rings, and start the valve table to make the cylinder piston retract, so that the two roller rings clamp the 13mm maximum roller gap standard sample block;
[0016] 1.2 rotate the maximum opening adjustment ring to make the upper and lower ball heads abut to no gap;
[0017] 1.3 start the valve table to make the cylinder piston extend, so that the two roller rings open, and the 13mm maximum roller gap standard sample block is taken out;
[0018] 1.4 insert the maximum roller gap adjustment locking pin of the tail gripper adjustment device, finely adjust the maximum opening adjustment ring, make the locking eyes on the maximum opening adjustment ring align with the locking pin and insert the locking pin in place, and ensure that the maximum roller gap adjustment locking pin locks the maximum opening adjustment ring.
[0019] 2, 6mm minimum roller gap adjustment
[0020] 2.1 pull out the minimum roller gap adjustment locking pin of the tail gripper adjustment device, insert the 6mm minimum roller gap standard sample block corresponding to φ16mm specification shown in table 1 between the two roller rings, and start the valve table to make the cylinder piston retract, so that the two roller rings clamp the 6mm minimum roller gap standard sample block;
[0021] 2.2 rotate the minimum opening adjustment ring to make the upper and lower ball heads abut to no gap;
[0022] 2.3 start the valve table to make the cylinder piston extend, so that the two roller rings open, and the 6mm minimum roller gap standard sample block is taken out;
[0023] 2.4 Insert the minimum gap adjustment locking pin, fine-tune the minimum gap adjustment ring, align the locking eye on the minimum gap adjustment ring with the locking pin and insert the locking pin into place, ensure that the minimum gap adjustment locking pin locks the minimum gap adjustment ring.
[0024] 3. Inspection and verification
[0025] 3.1 Insert a φ16mm standard sample bar corresponding to the φ16mm specification size between the two roller rings, and start the valve table to retract the cylinder piston, and the two roller rings clamp the φ16mm standard sample bar;
[0026] 3.2 After ensuring that the two roller rings clamp the φ16mm standard sample bar, use a feeler gauge to measure and confirm that the gap between the upper and lower ball heads is ≥1〜2mm;
[0027] 3.3 Start the valve table to extend the cylinder piston, and the two roller rings open, and the φ16mm standard sample bar is removed;
[0028] 3.4 Start the valve table to retract the cylinder piston, and the two roller rings clamp, and observe that there is a gap between the upper and lower roller rings and the inlet and outlet inserts, but the two roller rings cannot clamp the inserts. At the same time, check whether the two roller rings are in contact, and use a feeler gauge to measure and confirm that the gap between the two roller rings is ≥1.5〜6mm; when the gap between the two roller rings is <1.5mm, the roller rings need to be replaced before the next adjustment;
[0029] 3.5 The inspection and verification is completed.
[0030] The effects of the utility model are as follows:
[0031] 1. The adjustment time of the roller ring and the tail clamp roller gap is greatly reduced;
[0032] 2. The hole type and roller gap adjustment operation standard of the high-speed bar production line tail clamp is standardized, and the randomness of the previous adjustment human factors and the non-standard and randomness of the finished product sample bar size, which may cause the difference in the opening size and cause unstable clamping, are avoided;
[0033] 3. The tail clamp roller ring valve table clamping cylinder pressure adjustment is avoided, and the pressure fluctuation and the resulting unstable clamping are avoided;
[0034] 4. The optimization of parameters improves the problems of high-speed area steel stacking, low barrel impact, tail clamp not clamping and the like caused by the mismatch of the tail clamp outlet speed, pre-clamping speed, shearing speed and tail clamp speed, and reduces the cold bed steel feeding hub steel clamping failure and accident occurrence.
[0035] 5、Avoids the drag straightening function of the non-porous type tail clamp roller ring which needs a large cylinder clamping pressure, avoids the large clamping cylinder pressure to the bar transverse rib and longitudinal rib, maintains the transverse rib and longitudinal rib shape and size precision of the φ12mm, φ14mm, φ16mm specification high speed bar to meet the product standard requirements, avoids the occurrence of product quality problems.
[0036] The utility model discloses a simple structure, reliable, applicable to the roll gap adjustment of high speed bar production line tail clamp. BRIEF DESCRIPTION OF DRAWINGS
[0037] Figure 1 It is the roller ring schematic view of the utility model;
[0038] Figure 2 It is the hole type clamping plate schematic view of the utility model;
[0039] Figure 3 It is the standard sample block schematic view of the utility model;
[0040] Figure 4 It is Figure 3 Left view schematic view;
[0041] Figure 5 It is the standard sample bar schematic view of the utility model;
[0042] Figure 6 It is the working state schematic view of the utility model.
[0043] In the drawing: 1-roller ring, 2-hole type clamping plate, 3-standard sample block, 4-standard sample bar, 5-upper roller shaft, 6-lower roller shaft, 7-tail clamp box, 8-cylinder. DETAILED DESCRIPTION
[0044] The utility model will be further described below in conjunction with the drawings, but in any way to the utility model add restrictions, based on the utility model teaching made any change, all fall into the utility model protection scope.
[0045] As Figures 1 to 6 Indicated, the utility model includes roller ring 1, hole type clamping plate 2, standard sample block 3, standard sample bar 4, the roller ring 1 is 2, installs respectively on upper roller shaft 5 and lower roller shaft 6, the hole type clamping plate 2 is used for checking the hole type wear degree of roller ring 1, the hole type clamping plate 2 is provided with specification mark, the standard sample block 3 is placed between the end of upper and lower two roller rings 1, is used for adjusting the gap between upper and lower two roller rings 1, the standard sample block 3 is provided with thickness specification mark, the standard sample bar 4 is placed in the hole type of upper and lower two roller rings 1, is used for checking the eligibility of roller ring 1, the standard sample bar 4 is provided with diameter specification mark.
[0046] The arc-shaped hole radius of the roll ring 1 is R25mm-R30mm, and the arc surface width is 25mm.
[0047] The hole of the roll ring 1 can be suitable for three kinds of bar specifications, i.e. bar of Ø12mm, bar of Ø14mm and bar of Ø16mm.
[0048] The hole of the hole clamping plate 2 is consistent with the hole of the roll ring 1.
[0049] The size precision of the hole clamping plate 2 is ±0.01mm.
[0050] The hole clamping plate 2 is made of stainless steel with thickness of 1.5-2mm, and the surface needs to be smooth and flat.
[0051] The hole clamping plate 2 is provided with the mark "Ø12mm-Ø22mm tail clamping device".
[0052] The thickness size precision of the standard sample block 3 is ±0.01mm.
[0053] The standard sample block 3 is made of stainless steel, and the surface needs to be smooth and flat.
[0054] The diameter size precision of the standard sample bar 4 is ±0.01mm.
[0055] The working principle and working process of the utility model are as follows:
[0056] The hole of the roll ring 1 is optimized and designed, and the holes of the roll rings 1 of three specifications (bar of Ø12mm, bar of Ø14mm and bar of Ø16mm) are unified as a common hole, which reduces the types of the roll rings 1; the standard sample block 3 has six specifications, wherein the thicknesses of three minimum roll gap standard sample blocks 3 are 4mm, 5mm and 6mm respectively; the thicknesses of three maximum roll gap standard sample blocks 3 are 9mm, 11mm and 13mm respectively; the standard sample bar 4 has three specifications (bar of Ø12mm, bar of Ø14mm and bar of Ø16mm) corresponding to the bar specifications; when rolling bars of different specifications, only the unified different specifications of the standard sample block 3 and the standard sample bar 4 are needed to simply adjust the tail clamping device roll gap, which reduces a large amount of downtime, improves the efficiency of the production line, reduces the previous complicated roll gap adjusting link, saves the roll ring 1 and improves the utilization rate of the roll ring 1.
[0057] Roller ring 1 has an arc-shaped hole with an R25mm to R30mm diameter and an arc width of 25mm. The wear condition can be checked and replaced using a corresponding hole-shaped clamping plate 2. The arc-shaped hole and its appropriate contact area corresponding to φ12mm, φ14mm, and φ16mm bars can be adjusted to increase the contact area between the clamping roller ring 1 and the bar. When the clamping pressure of the clamping cylinder drops to ≤0.25Mpa, the increased clamping contact area and friction can enhance the dragging and straightening effect on the clamped bar, achieving a suitable exit speed for the clamping device. This better controls the tail swing of the high-speed moving bar, preventing bending and deformation of the bar and its tail, and ensuring the high-speed bar smoothly enters the upper steel drum of the cooling bed, avoiding malfunctions and accidents such as steel jamming on the upper steel drum.
[0058] Furthermore, the moderate increase in the contact area between the clamping roller ring 1 and the bar stock avoids the dragging and straightening effect that requires a large cylinder clamping pressure to achieve with the non-perforated clamping roller ring 1. It also avoids the crushing and flattening effect of a large clamping cylinder pressure on the transverse and longitudinal ribs of the bar stock, ensuring that the shape and dimensional accuracy of the transverse and longitudinal ribs of the high-speed bar stock with φ12mm, φ14mm, and φ16mm specifications meet the product standard requirements, thus preventing product quality problems.
[0059] Taking the adjustment of the roll gap of the high-speed bar clamp for rolling φ12mm, φ14mm and φ16mm as an example, this utility model requires the use of the standard sample block 3, standard sample bar 4 and hole-shaped clamping plate 2 shown in Table 1 below.
[0060] Table 1
[0061] Bar diameter (mm) φ12 φ14 φ16 Minimum roll gap standard block thickness (mm) 4 5 6 Maximum roll gap standard block thickness (mm) 9 11 13 Standard bar diameter (mm) φ12 φ14 φ16
[0062] The following example demonstrates the adjustment of the roll gap in a high-speed bar chuck for rolling φ16mm bars. The roll gap adjustment steps are as follows:
[0063] 1. Adjustment of maximum roll gap of 13mm
[0064] 1.1 Pull out the maximum roll gap adjustment locking pin of the tail clamp adjustment device, insert the 13mm maximum roll gap standard sample block 3 corresponding to the φ16mm specification shown in Table 1 between the two roller rings 1; and start the valve platform to retract the cylinder piston, so that the two roller rings 1 clamp the 13mm maximum roll gap standard sample block 3.
[0065] 1.2 Rotate the maximum opening adjusting ring until the upper and lower ball heads are pressed together without any gap;
[0066] 1.3 Start the valve platform to extend the cylinder piston, causing the two roller rings 1 to open, and take out the standard sample block 3 with a maximum roller gap of 13mm;
[0067] 1.4 Insert the maximum roll gap adjustment locking pin, fine adjust the maximum opening adjustment ring, align the locking eye on the maximum opening adjustment ring with the locking pin and insert the locking pin into place, ensure the maximum roll gap adjustment locking pin locks the maximum opening adjustment ring.
[0068] 2. Minimum roll gap adjustment of 6mm
[0069] 2.1 Remove the minimum roll gap adjustment locking pin, insert the 6mm minimum roll gap standard block 3 of the corresponding φ16mm size shown in Table 1 between the two roller rings 1, and start the valve table to retract the cylinder piston, the two roller rings 1 clamp the 6mm minimum roll gap standard block 3;
[0070] 2.2 Turn the minimum opening adjustment ring, make the upper and lower ball heads top without gap;
[0071] 2.3 Start the valve table to extend the cylinder piston, the two roller rings 1 open, take out the 6mm minimum roll gap standard block 3;
[0072] 2.4 Insert the minimum roll gap adjustment locking pin, fine adjust the minimum opening adjustment ring, align the locking eye on the minimum opening adjustment ring with the locking pin and insert the locking pin into place, ensure the minimum roll gap adjustment locking pin locks the minimum roll gap adjustment ring.
[0073] 3. Inspection and verification
[0074] 3.1 Insert the φ16mm standard sample bar 4 of the corresponding φ16mm size as shown in Table 1 between the two roller rings 1, and start the valve table to retract the cylinder piston, the two roller rings 1 clamp the φ16mm standard sample bar 4;
[0075] 3.2 After ensuring that the two roller rings 1 hold the φ16mm standard sample bar 4, use the feeler gauge to measure and confirm that the gap between the upper and lower ball heads is ≥1〜2mm;
[0076] 3.3 Start the valve table to extend the cylinder piston, the two roller rings 1 open, take out the φ16mm standard sample bar 4;
[0077] 3.4 Start the valve table to retract the cylinder piston, the two roller rings 1 clamp, observe that there is a gap between the upper and lower roller rings 1 and the inlet and outlet inserts, but the two roller rings 1 cannot clamp the inserts. At the same time, check whether the two roller rings 1 are in contact, use the feeler gauge to measure and confirm that the gap between the two roller rings 1 is ≥1.5〜6mm; when the gap between the two roller rings 1 is <1.5mm, the roller rings 1 need to be replaced before the next adjustment;
[0078] 3.5 Inspection and verification is completed.
Claims
1. A kind of roll neck and roll gap adjustment sample suitable for high-speed bar production line clamp tailer, including roll neck (1), pass card (2), standard sample block (3), standard sample bar (4), it is characterized by: The roll ring (1) is two pieces, respectively corresponding to the upper roll shaft (5) and the lower roll shaft (6); the hole type clamping plate (2) is used for checking the hole type wear degree of the roll ring (1); the hole type clamping plate (2) is provided with specification marks; the standard sample block (3) is placed between the end portions of the upper and lower roll rings (1), and is used for adjusting the gap between the upper and lower roll rings (1); the standard sample block (3) is provided with thickness specification marks; the standard sample rod (4) is placed in the hole type of the upper and lower roll rings (1), and is used for checking the qualification of the hole type of the roll ring (1); the standard sample rod (4) is provided with diameter specification marks.
2. The roll neck and roll gap adjustment sample for a tail shear of a high speed bar mill line according to claim 1, characterized in that: The arc-shaped hole type radius of the roll ring (1) is R25mm-R30mm, and the arc surface width is 25mm.
3. The sample for adjusting the roll neck and roll gap of the tail gripper for high speed bar production line according to claim 1, characterized in that: The hole type of the roll ring (1) can be suitable for three kinds of bar specifications, i.e. Ø12mm, Ø14mm and Ø16mm.
4. The sample for adjusting the roll neck and roll gap of the tail gripper for high speed bar production line according to claim 1, characterized in that: The hole type of the hole type clamping plate (2) is consistent with the hole type of the roll ring (1).
5. The sample for adjusting the roll neck and roll gap of the tail gripper for high speed bar production line according to claim 1, characterized in that: The size accuracy of the hole type clamping plate (2) is ±0.01mm.
6. The roll neck and gap adjustment sample for a tail shear suitable for use in a high speed bar mill line according to claim 1, characterized in that: The hole type clamping plate (2) is made of stainless steel with a thickness of 1.5-2mm, and the surface needs to be smooth and flat.
7. The sample for adjusting the roll neck and roll gap of the tail gripper for high speed bar production line according to claim 1, characterized in that: The hole type clamping plate (2) is provided with marks "Ø12mm-Ø22mm tail clamping device".
8. The roll neck and gap adjustment sample for a tail shear suitable for use in a high speed bar mill line according to claim 1, characterized in that: The thickness size accuracy of the standard sample block (3) is ±0.01mm.
9. The sample for adjusting the roll neck and roll gap of the tail gripper for high speed bar production line according to claim 1, characterized in that: The standard sample block (3) is made of stainless steel, and the surface needs to be smooth and flat.
10. The roll neck and roll gap adjustment sample for a tail shear suitable for use in a high speed bar mill line according to claim 1, characterized in that: The diameter size accuracy of the standard sample rod (4) is ±0.01mm.