A centering and width measuring device and method for medium and heavy plates

Abstract

The present invention provides a centering and width measuring device and method for medium and heavy plates; the device includes: a width measuring station (1), a centering moving mechanism (2), a centering servo motor (3), a gear and rack mechanism (4), a lateral moving pulley group (8), a lateral moving pulley group lifting mechanism (9), and a conveying chain (10); the present invention also relates to the method of the foregoing device. The centering and width measuring device for medium and heavy plates involved in the present invention is a centering and width measuring device with a simple structure, perfect functions, and high reliability. This device can quickly and efficiently achieve the centering and width measurement of medium and heavy plates, and improve the deep processing efficiency of medium and heavy plates.

Description

Technical Field

[0001] The present invention belongs to the field of metallurgical equipment; in particular, it relates to a centering and width measuring device and method for medium and heavy plates. Background Art

[0002] In recent years, not only the market demand for various medium and heavy metal plates has been increasing, but also the requirements for deep processing of plates have been increasing. Before deep processing, the plates must undergo centering and width measuring processes on the production line. However, in the prior art, the centering and width measuring of plates cannot be carried out simultaneously and need to be carried out at two different workstations. Among them, the centering process of the plate is realized by a hydraulic device. It is difficult to measure the width of the plate during the centering of the hydraulic device. The measurement of the plate width needs to be completed by other devices. This kind of centering and width measuring not only cannot be completed in one section, but also cannot be uniformly controlled, reducing the deep processing efficiency of the plate. Summary of the Invention

[0003] The purpose of the present invention is to provide a centering and width measuring device and method for medium and heavy plates.

[0004] The present invention is realized by the following technical solutions:

[0005] The present invention relates to a centering and width measuring device for medium and heavy plates, including: a centering and width measuring station 1, a centering moving mechanism 2, a centering servo motor 3, a gear and rack mechanism 4, a transverse moving pulley group 8, a transverse moving pulley group lifting mechanism 9, and a conveying chain 10. Each component is connected by interaction with each other;

[0006] Among them,

[0007] The centering and width measuring station 1 is used to complete the functions of width measurement and centering;

[0008] The centering moving mechanism 2 is used to move the medium and heavy plate to be centered and width measured;

[0009] The centering servo motor 3 is used to provide power for the centering moving mechanism 2 and record displacement data;

[0010] The gear and rack mechanism 4 is used to convert the rotary motion of the centering servo motor 3 into a linear motion to drive the centering moving mechanism 2 to move;

[0011] The transverse moving pulley group 8 is used to move the medium and heavy plate to be measured towards the centering station;

[0012] The transverse moving pulley group lifting mechanism 9 is used to lift the transverse moving pulley group 8 and the medium and heavy plate to be measured to the same height as the centering moving mechanism 2 at the same time;

[0013] The conveying chain 10 is used to convey the medium and heavy plate to be measured to the centering and width measuring station 1.

[0014] Preferably, the centering movement mechanism 2 is provided with a centering mechanism adjustable top wheel 5 , a stop proximity switch collision sensor plate 6 and a centering stop travel switch 7 .

[0015] Preferably, the centering stop limit switch 7 is installed on the back of the adjustable top wheel 5 of the centering mechanism. After the medium and thick plate to be tested collides with the adjustable top wheel 5 of the centering mechanism, it drives the stop proximity switch collision sensor plate 6 to move. The movement of the collision sensor plate 6 causes the centering stop limit switch 7 to send a signal to the PLC, stopping the centering servo motor 3, and the centering moving mechanism 2 stops accordingly.

[0016] Preferably, the conveyor chain 10 is used to convey the medium and thick plates to be tested to the area of the transverse moving pulley group 8.

[0017] Preferably, the centering mechanism can adjust the top wheel 5 to hit the medium and thick plate and move simultaneously with the centering moving mechanism 2; the stop proximity switch collision sensor plate 6 is used to sense the centering stop limit switch 7; the centering stop limit switch 7 is used to send a stop signal to the centering moving mechanism 2.

[0018] Preferably, the servo motor 3 is equipped with a multi-turn absolute encoder for recording the moving distance data of the centering moving mechanism 2 .

[0019] Preferably, while the gear rack 4 drives the centering moving mechanism 2 to move, the centering moving mechanism 2 moves closer to the medium and thick plate to be measured in width.

[0020] The present invention also relates to the aforementioned method for centering and measuring the width of medium and thick plates, comprising the following steps:

[0021] Step 1, lifting the medium and thick plate: The medium and thick plate is transported to the centering and width measuring station 1 by the conveyor chain 10, and the transverse moving pulley block lifting mechanism 9 uses a hydraulic cylinder or a drive motor to lift the transverse moving pulley block 8 and simultaneously drive the medium and thick plate to lift, so that the medium and thick plate leaves the conveyor chain 10 and is completely lifted by the transverse moving pulley block 8, and the medium and thick plate moves transversely on the transverse moving pulley block 8;

[0022] Step 2, centering: start the centering servo motor 3 to drive the gear rack mechanism 4 to move, and move from the lateral center of both sides of the workstation. When the gear rack mechanism 4 drives the centering moving mechanism 2 on both sides to move, the top wheel 5 of the centering mechanism on one side first presses against the medium and thick plate, and the stop proximity switch collision sensing piece 6 partially retreats. The stop proximity switch collision sensing piece 6 contacts the centering stop travel switch 7 on that side. At this time, the medium and thick plate is pressed by the top wheel 5 of the centering mechanism, so that it moves to the top wheel 5 of the centering mechanism on the other end on the lateral moving pulley set 8. At this time, the top wheels 5 of the centering mechanisms on both sides move toward the center of the lateral moving pulley set 8 driven by the gear rack mechanism 4.

[0023] When the centering moving mechanism 2 at the other end hits the medium-thick plate moving in this direction driven by the gear-rack mechanism 4, the centering mechanism top wheel 5 on this side will partially retract. After retraction, the collision induction piece 6 of the stop proximity switch on this side will contact the centering stop travel switch 7 on this side. At this time, the centering stop travel switches 7 on both sides are both hit. When the centering stop travel switches 7 on both sides send signals to the PLC, the centering servo motor 3 immediately stops. The medium-thick plate is located at the center position of the transverse moving pulley group 8. Subsequently, the lifting mechanism 9 of the transverse moving pulley group descends, causing the medium-thick plate to fall into the original working position, thus completing the centering process of the medium-thick plate;

[0024] Step 3, width measurement: According to the encoder of the centering servo motor 3, measure the displacement value of the centering moving mechanism 2 driven by the gear-rack mechanism 4, and record this value as a;

[0025] Suppose the original distance between the two synchronously moving centering moving mechanisms 2 is b. When a mechanical mechanism fails, the servo motor is zeroed and calibrated through the centering zeroing proximity switch to ensure that the distance between the two centering mechanisms is always b;

[0026] The actual width of the wide and thick plate is w. Calculate the actual width through the formula w = b - 2a. The centering servo motor 3 drives the centering moving mechanism 2 to retract, completing the centering and zeroing of the medium-thick plate.

[0027] The present invention has the following advantages:

[0028] (1) The centering and width measuring device for medium-thick plates involved in the present invention is a centering and width measuring device with a simple structure, perfect functions, and high reliability.

[0029] (2) The device involved in the present invention can quickly and efficiently achieve the centering and width measurement of medium-thick plates, and improve the deep processing efficiency of medium-thick plates.

[0030] (3) The device involved in the present invention has a low cost, diverse functions, and greatly improves the work efficiency. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of the centering and width measuring device for medium-thick plates provided by the embodiment of the present invention;

[0032] Figure 2 is a working display diagram of the centering and width measuring device for medium-thick plates provided by the embodiment of the present invention;

[0033] Attached drawing reference numerals: 1 is the centering and width measuring station, 2 is the centering moving mechanism, 3 is the centering servo motor, 4 is the gear-rack mechanism, 5 is the adjustable top wheel of the centering mechanism, 6 is the collision induction piece of the stop proximity switch, 7 is the centering stop travel switch, 8 is the transverse moving pulley group, 9 is the lifting mechanism of the transverse moving pulley group, and 10 is the conveying chain. Detailed implementation mode

[0034] The present invention will be described in detail below in conjunction with specific embodiments. It should be noted that the following embodiments are only further descriptions of the present invention, but the protection scope of the present invention is not limited to the following embodiments.

[0035] Embodiment

[0036] This embodiment is used for the centering and width measuring device of medium-thick plates, as shown in Figure 1 、 Figure 2 shown: including: centering and width measuring station 1, centering moving mechanism 2, centering servo motor 3, gear-rack mechanism 4, transverse moving pulley group 8, lifting mechanism of transverse moving pulley group 9, and conveying chain 10;

[0037] Among them,

[0038] The centering and width measuring station 1 is used to complete the functions of width measurement and centering;

[0039] The centering moving mechanism 2 is used to move the medium-thick plate to be centered and width measured;

[0040] The centering servo motor 3 is used to provide power for the centering moving mechanism 2 and record displacement data;

[0041] The gear-rack mechanism 4 is used to convert the rotary motion of the centering servo motor 3 into a linear motion to drive the centering moving mechanism 2 to move;

[0042] The transverse moving pulley group 8 is used to move the medium-thick plate to be measured towards the centering station;

[0043] The lifting mechanism of the transverse moving pulley group 9 is used to lift the transverse moving pulley group 8 and the medium-thick plate to be measured to the same height as the centering moving mechanism 2 at the same time;

[0044] The conveying chain 10 is used to convey the medium-thick plate to be measured to the centering and width measuring station 1.

[0045] The centering moving mechanism 2 is provided with an adjustable top wheel 5 of the centering mechanism, a collision induction piece 6 of the stop proximity switch, and a centering stop travel switch 7.

[0046] The centering stop travel switch 7 is installed on the back of the adjustable top wheel 5 of the centering mechanism. After the medium-thick plate to be measured collides with the adjustable top wheel 5 of the centering mechanism, it drives the stop proximity switch to collide with the sensing piece 6 and move. The movement of the sensing piece 6 causes the centering stop travel switch 7 to send a signal to the PLC, stopping the centering servo motor 3, and the centering moving mechanism 2 stops accordingly.

[0047] The conveying chain 10 is used to convey the medium-thick plate to be measured into the area of the transverse moving pulley group 8.

[0048] The lifting mechanism 9 of the transverse moving pulley group raises and lowers the transverse moving pulley group 8 by a hydraulic mechanism. The transverse moving pulley group 8 raises the medium-thick plate to be centered and separates it from the conveying chain 10, placing it at the centering width measurement station 1.

[0049] The adjustable top wheel 5 of the centering mechanism is used to bump the medium-thick plate and move simultaneously with the centering moving mechanism 2; the stop proximity switch collision sensing piece 6 is used to sense the centering stop travel switch 7; the centering stop travel switch 7 is used to send a stop signal for the centering moving mechanism 2.

[0050] The servo motor 3 is equipped with a multi-turn absolute encoder for recording the moving distance data of the centering moving mechanism 2.

[0051] While the gear rack 4 drives the centering moving mechanism 2 to move, the centering moving mechanism 2 moves closer to the medium-thick plate to be measured for width.

[0052] The method for the centering and width measurement device for medium-thick plates according to this embodiment includes the following steps:

[0053] Step 1, first, the medium-thick plate is transported to the centering width measurement station 1 through the conveying chain 10. Subsequently, the lifting mechanism 9 of the transverse moving pulley group uses a hydraulic cylinder or a driving motor to raise the transverse moving pulley group 8 of the thick plate. After the transverse moving pulley group 8 is raised, it drives the medium-thick plate to rise together, causing the medium-thick plate to leave the conveying chain 10 and be completely supported by the transverse moving pulley group 8, enabling the medium-thick plate to move horizontally on the pulley group 8.

[0054] Step 2: After the medium and thick plate is lifted, start the centering servo motor 3, which drives the rack and pinion mechanism 4. The centering moving mechanism 2 is installed on the rack and pinion 4. The rack and pinion mechanism 4 moves synchronously from the horizontal center of both sides of the workstation as the servo motor 3 rotates. The centering mechanism 2 is installed with an adjustable top wheel 5. A spring mechanism is installed behind the top wheel of the centering mechanism, and behind the spring mechanism is the stop proximity switch collision sensor plate 6. When the rack and pinion mechanism 4 drives the centering mechanisms 2 on both sides to move, the top wheel 5 of the centering mechanism on one side will definitely press against the medium and thick plate first. After the top wheel presses against the medium and thick plate, it will transfer force to the spring mechanism behind it. After being squeezed, the spring mechanism will cause the stop proximity switch collision sensor plate 6 to partially retreat. After retreating, the stop proximity switch collision sensor plate 6 will contact the centering stop travel switch 7 on that side. At the same time, the medium plate is also supported by the top pulley mechanism 5, causing it to move toward the other end of the top pulley mechanism 5 on the transverse moving pulley set 8. At the same time, the centering top pulleys 5 on both sides move synchronously toward the center of the pulley set driven by the gear rack 4. When the top pulley mechanism 2 on the other end slowly hits the medium plate moving in that direction, the top pulley on that side will also partially retract through the spring mechanism under the impact and pressure. After retraction, the stop proximity switch collision sensor plate 6 on that side will also contact the centering stop limit switch 7 on that side. At this time, both the centering stop limit switches 7 on both sides are hit. When both the centering stop limit switches 7 on both sides send a signal to the PLC, the centering servo motor 3 immediately stops. At this point, the medium plate is exactly in the center of the sliding pulley set 8. Then the transverse moving pulley set lifting mechanism 9 descends, causing the medium plate to fall into its original position, thus completing the centering function of the medium plate.

[0055] Step 3: When the centering function is completed, the displacement value of the centering mechanism 2 driven by the gear rack 4 can be measured according to the encoder behind the servo motor, and the value can be recorded as a. The original distance between the two synchronously moving centering mechanisms is b. When a mechanical mechanism fails, the centering return to zero proximity switch can be used to complete the servo motor zero calibration to ensure that the distance between the two centering mechanisms is always b. The actual width of the thick plate is w, and the actual width can be calculated by the formula w=b-2a. Finally, the servo motor 3 drives the centering mechanism to retract, completing the centering and zero return functions of the medium and thick plate.

[0056] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various variations or modifications within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A centering and width measuring device for medium and heavy plates, characterized in that, include: Centering and width measuring station (1), centering moving mechanism (2), centering servo motor (3), rack and pinion mechanism (4), transverse moving pulley block (8), transverse moving pulley block lifting mechanism (9), and conveying chain (10); in, The centering and width measuring station (1) is used to complete the width measurement and centering function; The centering moving mechanism (2) is used to move the medium and thick plate to be centered and measured in width; The centering servo motor (3) is used to provide power to the centering moving mechanism (2) and record displacement data; The rack and pinion mechanism (4) is used to convert the rotary motion of the centering servo motor (3) into linear motion, thereby driving the centering moving mechanism (2) to move; The transverse moving pulley group (8) is used to move the medium and thick plate to be measured to the centering width measuring station; The transverse moving pulley block lifting mechanism (9) is used to simultaneously lift the transverse moving pulley block (8) and the medium and thick plate to be tested to the same height as the centering moving mechanism (2); The conveyor chain (10) is used to convey the medium and thick plates to be measured to the centering and width measuring station (1).

2. The centering and width measuring device for medium and heavy plates according to claim 1, characterized in that The centering movement mechanism (2) is provided with a centering mechanism adjustable top wheel (5), a stop proximity switch collision sensing piece (6) and a centering stop travel switch (7).

3. The centering and width measuring device for medium and heavy plates according to claim 2, characterized in that, The centering stop travel switch (7) is installed on the back of the centering mechanism adjustable top wheel (5). When the medium and thick plate to be tested collides with the centering mechanism adjustable top wheel (5), it drives the stop proximity switch collision sensing piece (6) to move. The collision sensing piece (6) moves so that the centering stop travel switch (7) sends a signal to the PLC, stops the centering servo motor (3), and the centering moving mechanism (2) stops accordingly.

4. The centering and width measuring device for medium and heavy plates according to claim 1, characterized in that, The lateral moving pulley block lifting mechanism (9) is used to lift the lateral moving pulley block (8) by a hydraulic mechanism. The lateral moving pulley block (8) lifts the medium and thick plate to be centered off the conveying chain (10) and places it in the centering width measuring station (1).

5. The centering and width measuring device for medium and heavy plates according to claim 2, characterized in that, The centering mechanism can adjust the top wheel (5) to hit the middle and thick plate and move simultaneously with the centering moving mechanism (2); the stop proximity switch collision sensing piece (6) is used to sense the centering stop travel switch (7); the centering stop travel switch (7) is used to send a stop signal to the centering moving mechanism (2).

6. The centering and width measuring device for medium and heavy plates according to claim 1, characterized in that, The servo motor (3) is equipped with a multi-turn absolute value encoder for recording the moving distance data of the centering moving mechanism (2).

7. The centering and width measuring device for medium and heavy plates according to claim 1, characterized in that, The gear rack (4) drives the centering moving mechanism (2) to move while the centering moving mechanism (2) moves toward the medium-thick plate to be measured in width.

8. A method for a centering and width measuring device for medium and heavy plates as described in claim 1, characterized in that, The following steps are involved: Step 1, lifting the medium and thick plate: the medium and thick plate is transported to the centering and width measuring station (1) by the conveying chain (10), the transverse moving pulley block lifting mechanism (9) is used to lift the transverse moving pulley block (8) by a hydraulic cylinder or a driving motor, and simultaneously drives the medium and thick plate to lift, so that the medium and thick plate leaves the conveying chain (10) and is completely lifted by the transverse moving pulley block (8), and the medium and thick plate moves transversely on the transverse moving pulley block (8); Step 2, centering: start the centering servo motor (3) to drive the gear rack mechanism (4) to move, and move from the horizontal center of both sides of the workstation. When the gear rack mechanism (4) drives the centering moving mechanism (2) on both sides to move, the top wheel (5) of the centering mechanism on one side first presses against the medium and thick plate, and the stop proximity switch collision sensing piece (6) partially retreats. The stop proximity switch collision sensing piece (6) contacts the centering stop travel switch (7) on that side. At this time, the medium and thick plate is pressed against the top wheel (5) of the centering mechanism, so that it moves on the horizontal moving pulley group (8) toward the top wheel (5) of the centering mechanism on the other end. At this time, the top wheels (5) of the centering mechanism on both sides and the gear rack mechanism (4) move toward the center of the horizontal moving pulley group (8); When the centering moving mechanism (2) at the other end hits the medium and thick plate moving in that direction under the drive of the gear rack mechanism (4), the top wheel (5) of the centering mechanism on that side will partially retreat, and the collision sensor plate (6) of the stop proximity switch on that side after retreating will contact the centering stop limit switch (7) on that side. At this time, the centering stop limit switches (7) on both sides are hit. When the centering stop limit switches (7) on both sides send signals to the PLC, the centering servo motor (3) stops immediately, and the medium and thick plate is located in the center position of the horizontal moving pulley group (8). Then the horizontal moving pulley group lifting mechanism (9) descends, so that the medium and thick plate falls into the original work position, thereby completing the centering process of the medium and thick plate. Step 3, measuring width: using the encoder of the centering servo motor (3), measure the displacement value of the centering moving mechanism (2) driven by the rack and pinion mechanism (4), and record the displacement value as a; Assume that the original distance between the two synchronously moving centering mechanisms (2) is b. When a mechanical mechanism fails, the servo motor is calibrated to zero by the centering zero return proximity switch to ensure that the distance between the two centering mechanisms is always b. The actual width of the wide and thick plate is w, which is calculated by the formula w=b-2a. The centering servo motor (3) drives the centering moving mechanism (2) to retreat, completing the centering and zero return of the medium and thick plate.

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