Positioning monitoring device and printing machine

Abstract

The utility model provides a positioning monitoring device and printing press, including motor (1), transmission mechanism, lift frame (6), driver, position detection module, the transmission mechanism is connected with said lift frame (6) and motor (1) 's rotation shaft respectively, through the rotation of motor (1) 's rotation shaft, said transmission mechanism drives said lift frame (6) to carry out lifting motion, the position detection module is connected with said motor (1) 's rotation shaft is connected with said driver, said motor (1) 's rotation shaft drives said lift frame (6) to carry out lifting motion. The position detection module is used for detecting whether the rotation of a rotating shaft of the motor (1) reaches a specified number of revolutions, and the driver controls the work of the motor (1) according to information detected by the position detection module. The lifting frame has the advantages that the lifting frame can accurately reach the designated position, and the requirements of users are met.

Description

Technical Field

[0001] The utility model relates to the field of electromechanical technology, in particular to a positioning and monitoring device and a printing machine. Background Art

[0002] The lifting frame is an important component for the up and down movement of the working platform of the printing machine. The up and down movement of the existing lifting frame is driven by a servo motor. During the operation of the servo motor, there are situations of losing steps and inaccurate positioning, resulting in the lifting frame being unable to reach the specified position and unable to meet the needs of users. Summary of the Utility Model

[0003] In order to solve the problem that the lifting frame in the prior art cannot reach the specified position, the utility model provides a positioning and monitoring device, including a motor, a transmission mechanism, a lifting frame, a driver, and a position detection module. The transmission mechanism is respectively connected to the lifting frame and the rotating shaft of the motor. By the rotation of the rotating shaft of the motor, the transmission mechanism drives the lifting frame to perform lifting movement. The position detection module is used to detect whether the rotation of the rotating shaft of the motor reaches the specified number of revolutions, and the driver controls the operation of the motor according to the information detected by the position detection module.

[0004] As a further improvement of the utility model, the transmission mechanism includes a lead screw and a lead screw nut installed on the lead screw. The lead screw is connected to the rotating shaft of the motor. The rotation of the rotating shaft of the motor drives the lead screw to rotate, and the lead screw nut is installed together with the lifting frame.

[0005] As a further improvement of the utility model, the position detection module includes a home position sensor, a reading head, and a grating scale. The motor finds the zero position through the home position sensor. The grating scale is used to monitor the number of revolutions of the rotation of the rotating shaft of the motor, thereby generating monitoring data, and the reading head is used to read the monitoring data to determine the number of revolutions of the rotation of the rotating shaft of the motor.

[0006] As a further improvement of the utility model, the positioning and monitoring device further includes a base, and the motor, the transmission mechanism, and the position detection module are installed on the base.

[0007] As a further improvement of the utility model, the positioning and monitoring device further includes a reading head bracket and a grating scale bracket. The reading head is installed on the reading head bracket, the reading head bracket is installed on the base, the grating scale is installed on the grating scale bracket, and the grating scale bracket is installed on the base.

[0008] As a further improvement of the present utility model, the positioning and monitoring device further includes an end sensor. The lifting frame is provided with a sensor. When the sensor on the lifting frame touches the end sensor, the end sensor transmits a signal to the motor, and the motor stops working, and the upward movement of the lifting frame immediately stops, thereby preventing the lifting frame from moving out of the end position.

[0009] As a further improvement of the present utility model, the motor is a servo motor.

[0010] The present utility model also provides a printing machine, which includes the positioning and monitoring device of the present utility model.

[0011] The beneficial effects of the present utility model are as follows: The present utility model can enable the lifting frame to accurately reach the specified position and meet the needs of users. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the present utility model. Detailed Embodiments

[0013] As Figure 1 shown, the present utility model discloses a positioning and monitoring device, including a base 5, and a motor 1, a transmission mechanism, a lifting frame 6, a driver, and a position detection module installed on the base 5. The transmission mechanism is respectively connected to the rotating shaft of the lifting frame 6 and the motor 1. By the rotation of the rotating shaft of the motor 1, the transmission mechanism drives the lifting frame 6 to perform a lifting movement. The position detection module is used to detect whether the rotation of the rotating shaft of the motor 1 reaches a specified number of revolutions. The driver controls the operation of the motor 1 according to the information detected by the position detection module.

[0014] The present utility model also discloses a printing machine which includes a positioning and monitoring device.

[0015] As a preferred embodiment of the present utility model, the transmission mechanism includes a lead screw 2 and a lead screw nut installed on the lead screw 2. The lead screw 2 is connected to the rotating shaft of the motor 1. The rotation of the rotating shaft of the motor 1 drives the lead screw 2 to rotate. The lead screw nut is installed together with the lifting frame 6. The motor 1 is a servo motor. The servo motor drives the lead screw 2 to rotate, and the rotation of the lead screw 2 causes the lead screw nut to move up and down, thereby causing the lifting frame 6 to move up and down.

[0016] The position detection module includes an origin sensor 3, a reading head 4, and a grating scale 9. The motor 1 finds the zero position through the origin sensor 3. The grating scale 9 is used to monitor the number of revolutions of the rotating shaft of the motor 1, thereby generating monitoring data. The reading head 4 is used to read the monitoring data to determine the number of revolutions of the rotating shaft of the motor 1. The reading head 4 is installed on the reading head bracket 7, and the reading head bracket 7 is installed on the base 5. The grating scale 9 is installed on the grating scale bracket 8, and the grating scale bracket 8 is installed on the base 5. The position detection module further includes an end point sensor 10, which acts as a soft limit to prevent the lifting frame 6 from moving out of the end position. The lifting frame 6 is provided with a sensor. The end point sensor 10 is installed on the base 5. When the sensor on the lifting frame 6 touches the end point sensor 10, the end point sensor 10 transmits a signal to the motor 1, and the motor 1 stops working, and the upward movement of the lifting frame 6 immediately stops, thereby preventing the lifting frame 6 from moving out of the end position.

[0017] During operation, the rotating shaft of the servo motor starts to rotate. The servo motor finds the zero position through the origin sensor 3. An operator inputs a position data (this position data is a set data) on the system. The lifting frame 6 automatically reaches the specified position according to the input data (that is, after the rotating shaft of the servo motor rotates the specified number of revolutions, it is considered that the lifting frame 6 has reached the specified position). At this time, the servo motor feeds back to the driver through its own feedback function to make the servo motor stop. At this time, there may be a phenomenon of losing steps during the operation of the servo motor, and it stops before actually reaching the specified position we set. To solve this phenomenon, the reading head 4 reads the current stopped position data and compares it with the set data. If the specified position is not reached, the reading head 4 compensates the error value between the current position data and the set data to the servo motor and the driver, so that the servo motor runs to the specified position and stops (that is, the reading head 4 reads the number of revolutions of the rotating shaft of the servo motor. If the rotation of the rotating shaft of the servo motor does not reach the specified number of revolutions, then it is considered that the lifting frame 6 has not reached the specified position, and the rotating shaft of the servo motor is driven to continue rotating until the rotation of the rotating shaft of the servo motor reaches the specified number of revolutions, so that the lifting frame 6 reaches the specified position.). The reciprocating motion positioning accuracy and position feedback function of the printing machine are realized.

[0018] In the present utility model, the functions realized by the driver, the origin sensor 3, the end point sensor 10, and the reading head 4 are completed by a hardware circuit without software participation in the operation.

[0019] The present utility model can enable the lifting frame 6 to reach the specified position and meet the needs of users.

[0020] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present utility model.

Claims

1. A positioning and monitoring device, characterized in that: It includes a motor (1), a transmission mechanism, a lifting frame (6), a driver, and a position detection module. The transmission mechanism is respectively connected to the rotating shaft of the lifting frame (6) and the motor (1). By the rotation of the rotating shaft of the motor (1), the transmission mechanism drives the lifting frame (6) to perform a lifting motion. The position detection module is used to detect whether the rotation of the rotating shaft of the motor (1) reaches a specified number of revolutions. The driver controls the operation of the motor (1) according to the information detected by the position detection module.

2. The positioning and monitoring device according to claim 1, characterized in that: The transmission mechanism includes a lead screw (2) and a lead screw nut mounted on the lead screw (2). The lead screw (2) is connected to the rotating shaft of the motor (1). By the rotation of the rotating shaft of the motor (1), the lead screw (2) is driven to rotate. The lead screw nut is installed together with the lifting frame (6).

3. The positioning and monitoring device according to claim 1, wherein: The position detection module includes a home position sensor (3), a reading head (4), and a grating scale (9). The motor (1) finds the zero position through the home position sensor (3). The grating scale (9) is used to monitor the number of revolutions of the rotating shaft of the motor (1), thereby generating monitoring data. The reading head (4) is used to read the monitoring data to determine the number of revolutions of the rotating shaft of the motor (1).

4. The positioning and monitoring device according to claim 1, characterized in that: This positioning and monitoring device further includes a base (5). The motor (1), the transmission mechanism, and the position detection module are installed on the base (5).

5. The positioning and monitoring device according to claim 4, characterized in that: This positioning and monitoring device further includes a reading head bracket (7) and a grating scale bracket (8). The reading head (4) is installed on the reading head bracket (7), and the reading head bracket (7) is installed on the base (5). The grating scale (9) is installed on the grating scale bracket (8), and the grating scale bracket (8) is installed on the base (5).

6. The positioning and monitoring device according to claim 3, characterized in that: This positioning and monitoring device further includes an end sensor (10). The lifting frame (6) is provided with a sensor. When the sensor on the lifting frame (6) touches the end sensor (10), the end sensor (10) transmits a signal to the motor (1), and the motor (1) stops working. The upward movement of the lifting frame (6) immediately stops, thereby preventing the lifting frame (6) from moving out of the end position.

7. The positioning and monitoring device according to any one of claims 1 to 6, characterized in that: The motor (1) is a servo motor.

8. A printing press, characterized in that: This printing machine includes the positioning and monitoring device according to any one of claims 1 to 7.

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