CN216037680U

CN216037680U - Cross cloth head clearance regulation and control device

Info

Publication number: CN216037680U
Application number: CN202122560093.1U
Authority: CN
Inventors: 张士明
Original assignee: Kunshan Jushuo Electromechanical Technology Co ltd
Current assignee: Kunshan Jushuo Electromechanical Technology Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-03-15
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses a gap regulating device for a cloth passing head, which comprises a fixed seat, a servo motor, a servo controller and an eccentric shaft, wherein the fixed seat is arranged between a first metering roller and a second metering roller, an output shaft of the servo motor is connected with the eccentric shaft, the servo motor drives the eccentric shaft to do rotary motion, the second metering roller is electrically connected with an offset cylinder, the offset cylinder drives the second metering roller to do reciprocating motion close to and/or far away from the first metering roller so as to regulate a gap, the servo motor is connected with the offset cylinder through the eccentric shaft, the eccentric shaft drives the offset cylinder to generate displacement so as to drive the second metering roller, the eccentric shaft is connected with a sensor, the sensor transmits the rotation angle information of the eccentric shaft to the servo controller, the gap regulating speed is high, the steering of the first metering roller and the second metering roller is not required to be additionally arranged, so that the setting is convenient for an operator, and the precision is higher.

Description

Cross cloth head clearance regulation and control device

Technical Field

The utility model relates to the technical field of coating, in particular to a cloth head passing gap regulating and controlling device.

Background

When the base cloth is coated, the base cloth needs to be scraped by the metering roll after passing through the coating roll so as to remove redundant coating on the base cloth, because the base cloth is continuously produced by mutually connecting a plurality of pieces of base cloth during production, cloth ends can exist at joints of the base cloth of different pieces of base cloth, namely, the base cloth at the joints can be mutually overlapped, so that the joints have thickness difference compared with other positions, the joints are thicker, and other positions are thinner, therefore, when the cloth ends pass through the metering roll, parameters need to be changed due to the thickness difference so as to adapt to the thickness change.

In the prior art, the gap between the metering rollers is usually adjusted through a gear and a worm gear, when a cloth head passes through the gap between the metering rollers, the two metering rollers change the rotating direction, if a first metering roller changes from anticlockwise to clockwise, a second metering roller changes from clockwise to anticlockwise, the two metering rollers keep synchronous linear speed rotation and are the same as the moving direction of the base cloth, so that the cloth head passes through the gap between the metering rollers, after the cloth head passes through, the metering rollers change the rotating direction again, so that other positions of the base cloth pass through, the residual glue on the metering rollers can be caused by the mode, the rejection rate of the cloth head is higher, the steering of the metering rollers is repeatedly changed, the gap adjusting speed between the metering rollers is slower, and the efficiency is not high.

In the prior art, as in chinese patent application CN112478878A, a gap adjusting member is provided between two metering rollers, and the gap adjusting member and a cylinder group are matched to adjust the gap between the metering rollers without changing the rotation direction of the two metering rollers.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a cloth head passing gap regulating and controlling device.

In order to achieve the above purposes, the utility model adopts the technical scheme that: a gap adjusting and controlling device for a cloth passing head comprises a fixed seat, a servo motor, a servo controller and an eccentric shaft, wherein the fixed seat is arranged between a first metering roller and a second metering roller, a gap is reserved between the first metering roller and the second metering roller, an output shaft of the servo motor is connected with the eccentric shaft, the servo motor drives the eccentric shaft to do rotating motion, the second metering roller is electrically connected with an offset cylinder, the offset cylinder drives the second metering roller to do reciprocating motion close to and/or far away from the first metering roller so as to adjust the gap, the servo motor is connected with the offset cylinder through the eccentric shaft, and the eccentric shaft drives the offset cylinder to generate displacement so as to drive the second metering roller.

Compared with the prior art, the pneumatic control device has the advantages that the servo motor and the eccentric shaft are arranged and connected with the offset cylinder through the eccentric shaft, the servo motor drives the eccentric shaft to rotate to drive the offset cylinder to move, the offset cylinder drives the second metering roller to move relative to the first metering roller, the response speed is higher compared with pneumatic control of the cylinder, the torque of the servo motor is controlled through the servo controller, the rotation angle of the eccentric shaft is further controlled, gap control is achieved, the precision is higher, the appropriate rotation angle can be set according to actual production requirements, the adaptability is higher, the servo motor is matched with the offset cylinder, the gap adjusting speed is high, additional steering of the first metering roller and the second metering roller is not needed, the efficiency is high, the possibility of sticking is reduced, and the product yield is improved.

Preferably, a sensor is connected to the eccentric shaft, and the sensor transmits the rotation angle information of the eccentric shaft to the servo controller. The initial angle and the rotation angle of the eccentric shaft are recorded through the sensor, the angle to be rotated is set through the servo controller based on the initial angle of the eccentric shaft, the resetting of the servo motor is facilitated, an operator can set the angle conveniently, and the precision is higher.

Preferably, a shaft sleeve is sleeved outside the eccentric shaft, and the eccentric shaft is rotatably arranged on the bearing seat through the shaft sleeve. The bearing block plays a role in supporting and fixing the eccentric shaft, and the rotation efficiency of the eccentric shaft is ensured.

Preferably, the fixing seat is provided with a connecting plate, one end of the connecting plate is arranged on the fixing seat, and the other end of the connecting plate is connected with the offset cylinder. The connecting plate plays the fixed support effect to the skew cylinder, and the operation is reliable.

Preferably, the offset cylinder is connected with an air source through an electromagnetic valve, the electromagnetic valve is used for switching the air supply state of the offset cylinder, and the air source is connected with the electromagnetic valve through an I/P processor. The air pressure in the air circuit is controlled through the I/P processor, the air inlet size of the offset cylinder is controlled, the accuracy is higher, the response speed is higher, the buffering effect can be achieved, and the flexibility is stronger.

Preferably, the servo motor is an explosion-proof servo motor. The operation is smooth and easy, and the structure is reliable.

Preferably, the servo motor is connected with a speed reducer. The rotating speed of the servo motor is reduced through the speed reducer, the rotating speed requirement of the eccentric shaft is met, and smooth operation is guaranteed.

Drawings

FIG. 1 is a schematic view of two metering rolls according to a preferred embodiment of the present invention;

FIG. 2 is another schematic view of two metering rolls according to a preferred embodiment of the present invention;

FIG. 3 is a schematic overall structure diagram of a preferred embodiment of the present invention;

FIG. 4 is a schematic diagram of the air passages of the offset cylinder according to a preferred embodiment of the present invention.

In the figure:

10-base cloth; 11-cloth ends; 21-a first metering roll; 22-a second metering roll; 23-an offset cylinder; 231-a solenoid valve; 232-I/P processor; 233-air source; s-clearance; 30-a fixed seat; 31-a servo motor; 32-an eccentric shaft; 33-a sensor; 34-a shaft sleeve; 35-a bearing seat; 36-connecting plate.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

Referring now to fig. 1 and 2, the prior art on which the present invention is based is described, in which a cloth head passing apparatus includes a first metering roller 21 and a second metering roller 22 arranged in parallel, a gap S is left between the first metering roller 21 and the second metering roller 22 for the base cloth 10 to pass through, a cloth head 11 is formed between adjacent base cloths 10 by overlapping, the thickness of the cloth head 11 is greater than the thickness of other positions of the base cloth 10, the moving direction of the base cloth 10 is from bottom to top (as shown by the arrow in fig. 1), for convenience of description, it is defined that when the base cloth 10 passes through the metering rollers, the rotating direction of the metering rollers is the same as the moving direction of the base cloth 10, i.e. the metering rollers rotate in the forward direction, as shown in fig. 1, when the base cloth 10 passes between the two metering rollers, in the prior art, both the first metering roller 21 and the second metering roller 22 rotate in the reverse direction, i.e. the first metering roller 21 rotates in the clockwise direction, the second metering roller 22 rotates in the counterclockwise direction, a doctor blade arranged on the side of the first metering roll 21 and the second metering roll 22 scrapes off the excess glue on the base cloth 10, which, when the cloth head 11 passes between the two metering rolls, as shown in figure 2, if the original gap S is still maintained, the cloth head 11 is subjected to a large stress and is easily torn, deformed and even broken, the speed and precision for adjusting the gap S in the prior art cannot meet the requirements, and if the first metering roller 21 and the second metering roller 22 still rotate reversely at the moment, the cloth head 11 is subjected to a large resistance and cannot easily pass through, so that the first metering roller 21 needs to be adjusted to rotate forwardly, namely, the first metering roll 21 rotates along the counterclockwise direction, the second metering roll 22 is adjusted to rotate along the forward direction, namely, the clockwise direction, to drive the cloth head 11 to pass through, after the cloth head 11 passes through, the first measuring roll 21 and the second measuring roll 22 are adjusted to be reversed, and this is repeated, which is inefficient.

The first metering roller 21 is fixed relative to the cloth head passing device and can only do rotation movement, the second metering roller 22 does reciprocating movement relative to the first metering roller 21 to adjust the size of the gap S, and the movement of the second metering roller 22 is the prior art and is not an innovation of the present invention, and is not described herein again.

As shown in fig. 3, the cloth head gap adjusting and controlling device in this embodiment includes a fixed seat 30, a servo motor 31, a servo controller (not shown in the figure) and an eccentric shaft 32, the fixed seat 30 is disposed on the cloth head passing apparatus, the fixed seat 30 is disposed between the first metering roller 21 and the second metering roller 22 and is located at two side ends of the first metering roller 21 and/or the second metering roller 22, it can be understood that the cloth head gap adjusting and controlling device in this embodiment is two and is disposed at two side ends of the second metering roller 22 respectively.

An output shaft of the servo motor 31 is connected with an eccentric shaft 32, a bearing seat 35 is arranged on the cloth head passing device, the servo motor 31 drives the eccentric shaft 32 to do rotary motion, the eccentric shaft 32 is connected with an offset cylinder 23, the offset cylinder 23 is electrically connected with a second metering roller 22, the offset cylinder 23 drives the second metering roller 22 to do reciprocating motion close to and/or far away from the first metering roller 21, the eccentric shaft 32 rotates for a certain angle to drive the offset cylinder 23 to displace, and further drives the second metering roller 22, a sensor 33 is connected on the eccentric shaft 32, the sensor 33 is used for detecting the rotation angle of the eccentric shaft 32 and recording the initial angle of the eccentric shaft 32 and transmitting the recorded information to a servo controller, when the servo motor 31 is powered off and stopped or an operator modifies the rotation angle of the eccentric shaft 32, the servo motor 31 and/or the eccentric shaft 32 can be restored to the initial angle through the recording of the sensor 33, that is, return to zero, the operator uses the initial angle confirmed by the sensor 33 as a zero point, the torque of the servo motor 31 is set through the servo controller, and further the angle of rotation required by the eccentric shaft 32 is set, so as to control the size of the gap between the second metering roller 22 and the first metering roller 21, preferably, the servo motor 31 adopts an explosion-proof servo motor, the eccentric shaft 32 is matched, the response speed is high, the displacement of the second metering roller 22 can reach mm level within 1 second, compared with the pneumatic adjustment principle through the offset cylinder 23, the quick adjustment of the gap between the first metering roller 21 and the second metering roller 22 can be realized, the adjustment of the gap can be manually controlled, the rejection rate of the cloth head 11 can be reduced according to the actual size regulation of the cloth head 11, the production efficiency is improved, and the application range is wider.

Preferably, servo motor 31 is connected with the speed reducer, and the speed reducer can reduce servo motor 31's rotational speed for servo motor 31's output shaft and eccentric shaft 32 cooperate, satisfy the rotational speed requirement of eccentric shaft 32, and the operation is reliable, promotes the precision of clearance adjustment.

The external cover of eccentric shaft 32 is equipped with axle sleeve 34, and eccentric shaft 32 passes through the rotatable setting of axle sleeve 34 on bearing frame 35, and bearing frame 35 plays the supporting role to eccentric shaft 32, ensures the stability of eccentric shaft 32 rotation in-process, and then ensures that second measurement roller 22 moves fast and stably.

Be equipped with connecting plate 36 on the fixing base 30, one side tip of connecting plate 36 sets up on fixing base 30, and the other end portion is connected with skew cylinder 23, and connecting plate 36 plays fixed support effect to skew cylinder 23.

As shown in fig. 4, an I/P processor 232 is connected in series in the gas path of the offset cylinder 23, the offset cylinder 23 is connected to a gas source 233 through a solenoid valve 231, the solenoid valve 231 is used for switching the gas supply state of the offset cylinder 23 and further controlling the state of the offset cylinder 23, the I/P processor 232 is used in cooperation with the solenoid valve 231 for controlling the gas pressure of the gas source 233 sent into the gas path, so that the movement of the offset cylinder 23 is more sensitive and the adjustment precision is improved, by providing the I/P processor, when an operator manually adjusts the base cloth 10 between two metering rollers, if the operator manually pulls the base cloth 10 to observe the coating effect or adjust the position, the I/P processor 232 can quickly respond to the reduced gas pressure, the offset cylinder 23 is timely, the pressure applied by the second metering roller 22 to the base cloth 10 is reduced, the operation is convenient, when the external force applied by the operator to the base cloth 10 disappears, the I/P processor 232 adjusts the air pressure in the air path to be large, the second metering roller 22 clamps the base cloth 10 tightly, the adhesion of the rubber materials is prevented, the waste of the rubber materials is reduced, and the yield of products is increased.

The working principle of the utility model is as follows:

the servo motor 31 is reset to zero according to the record of the sensor 33, the eccentric shaft 32 is positioned at an initial angle, namely a standby position, when the cloth head 11 passes between the two metering rollers, the required rotating angle of the eccentric shaft 23 is set according to the thickness of the cloth head 11, at the moment, under the cooperation of the I/P processor 323 and the air source 233, the air inlet of the offset air cylinder 23 reaches a proper size, the cloth head 11 passes through smoothly, and then the servo motor 31 is reset to zero and returns to the standby position to wait for the next passing of the cloth head 11.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a cross cloth head clearance regulation and control device which characterized in that: the device comprises a fixed seat (30), a servo motor (31), a servo controller and an eccentric shaft (32), wherein the fixed seat (30) is arranged between a first metering roller (21) and a second metering roller (22), a gap (S) is reserved between the first metering roller (21) and the second metering roller (22), an output shaft of the servo motor (31) is connected with the eccentric shaft (32), the servo motor (31) drives the eccentric shaft (32) to do rotary motion, the second metering roller (22) is electrically connected with an offset cylinder (23), the offset cylinder (23) drives the second metering roller (22) to do reciprocating motion close to and/or far away from the first metering roller (21) so as to adjust the gap (S), the servo motor (31) is connected with the offset cylinder (23) through the eccentric shaft (32), and the eccentric shaft (32) drives the offset cylinder (23) to generate displacement, thereby driving the second metering roller (22).

2. The gap adjusting and controlling device for the cloth passing head according to claim 1, characterized in that: the eccentric shaft (32) is connected with a sensor (33), and the sensor (33) transmits the rotation angle information of the eccentric shaft (32) to the servo controller.

3. The gap adjusting and controlling device for the cloth passing head according to claim 1, characterized in that: the eccentric shaft (32) is sleeved with a shaft sleeve (34), and the eccentric shaft (32) is rotatably arranged on a bearing seat (35) through the shaft sleeve (34).

4. The gap adjusting and controlling device for the cloth passing head according to claim 1, characterized in that: the device is characterized in that a connecting plate (36) is arranged on the fixed seat (30), one end of the connecting plate (36) is arranged on the fixed seat (30), and the other end of the connecting plate is connected with the offset cylinder (23).

5. The gap adjusting and controlling device for the cloth passing head according to claim 1, characterized in that: the air supply device is characterized in that the offset air cylinder (23) is connected with an air source (233) through an electromagnetic valve (231), the electromagnetic valve (231) is used for switching the air supply state of the offset air cylinder (23), and the air source (233) is connected with the electromagnetic valve (231) through an I/P processor (232).

6. The gap adjusting and controlling device for the cloth passing head according to claim 1, characterized in that: the servo motor (31) adopts an explosion-proof servo motor.

7. The gap adjusting and controlling device for the cloth passing head according to claim 1, characterized in that: the servo motor (31) is connected with the speed reducer.