A pressure balance and automatic adjustment system for the head of an eyeglass edge grinding machine

Abstract

The present invention discloses a head pressure balance and automatic adjustment system for eyeglass edge grinding machines, comprising a main frame, a head, a head pressure balance system, a head pressure automatic adjustment system, and a control display system. The head pressure balance system comprises a pressure balance hanging foot, a head pressure balance spring, and a head lifting block; the head pressure automatic adjustment system comprises a head pressure adjustment spring hanging foot, a head pressure adjustment spring, a wire rope, a pulley, a pulley bracket, a displacement sensor, a displacement baffle, a head pressure adjustment motor, and a motor fixing plate; the control display system comprises a circuit board, an analog signal line, a power line, a display screen touch screen signal line, a display screen touch screen, an encoder, and an encoder mounting plate. The present invention is easy to adjust and can ensure that the head pressure is stable during the edge grinding process; in addition, the circuit board automatically adjusts the pressure of each step according to the edge grinding step to optimize the edge grinding time.

Description

Technical Field

[0001] The invention relates to the technical field of edge grinding machines, and in particular to a head pressure balance and automatic adjustment system of an eyeglass edge grinding machine. Background Art

[0002] In the eyewear industry, optical lenses are classified by hydrophobic coating, including ordinary film lenses, super-coated lenses, and super-hydrophobic film lenses, among which the proportion of super-coated and super-hydrophobic films has risen to a very high level. In recent years, with the improvement of lens coating technology, the surface smoothness of the film layer has gradually improved, which has a direct impact on the improvement of the waterproof performance and aesthetics of eyeglass lenses, and is becoming more and more popular among consumers. Most of these waterproof optical lenses have a very low surface friction coefficient of the film layer.

[0003] When using a fully automatic edge grinder to process super-coated lenses and super-water-coated lenses, the problem of axis deviation is difficult to solve. Once the axis deviation of the processed lens exceeds 5 degrees, the user will feel obviously uncomfortable when using it. Some lenses with excessive axis deviation can only be scrapped. A considerable number of opticians choose to use manual edge grinders to grind the edges of these lenses, which is not only troublesome to operate, but also has high requirements on the optician's grinding skills. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a head pressure balancing and automatic adjustment system for an eyeglass edge grinding machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A head pressure balancing and automatic adjustment system for eyeglass edge grinding machines, comprising a main frame, a head, a head pressure balancing system, a head pressure automatic adjustment system, and a control display system.

[0007] The machine head pressure balance system includes a pressure balance hanging foot, a machine head pressure balance spring and a machine head lifting block;

[0008] The machine head pressure automatic adjustment system includes a machine head pressure adjustment spring hanging foot, a machine head pressure adjustment spring, a wire rope, a pulley, a pulley bracket, a displacement sensor, a displacement baffle, a machine head pressure adjustment motor, and a motor fixing plate;

[0009] The control display system includes a circuit board, an analog signal line, a power line, a display screen touch screen signal line, a display screen touch screen, an encoder, and an encoder mounting plate;

[0010] One end of the machine head pressure regulating spring is hung on the machine head pressure regulating spring hanging foot, and the other end of the machine head pressure regulating spring is connected to the wire rope, and the other end of the wire rope passes around the pulley and is connected to the machine head pressure regulating motor. The machine head pressure regulating motor drives the screw to retract and retract by rotating in both directions, thereby tightening and loosening the wire rope. The machine head pressure regulating motor is connected to the machine head through a motor fixing plate, and a displacement baffle is installed at the shaft end of the machine head pressure regulating motor. The pulley is installed on the machine head through a pulley bracket, and a displacement sensor is installed on the pulley bracket. The two ends of the machine head pressure balance spring are respectively connected to the pressure balance hanging foot and the machine head lifting block.

[0011] Preferably, the probe of the displacement sensor is against the displacement baffle to measure the displacement of the head pressure regulating motor.

[0012] Preferably, the circuit board is connected to a displacement sensor via an analog signal line to obtain an analog voltage value.

[0013] Preferably, the circuit board is connected to the head pressure regulating motor via a power line to control the forward and reverse movement of the head pressure regulating motor.

[0014] Preferably, the reader of the encoder is connected to the machine head, and the encoder is connected to the main frame via an encoder mounting plate to measure the angle of the machine head to obtain the grinding torque.

[0015] Preferably, the encoder is connected to the circuit board via a data line to feedback the torque to further optimize the head pressure, and the circuit board is connected to the display screen touch screen via a display screen touch screen signal line to display the head pressure and switch the head pressure.

[0016] Preferably, the machine head pressure balancing spring and the machine head pressure regulating spring match each other in terms of wire diameter, outer diameter, elastic coefficient and effective number of turns.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the present invention, the machine head pressure balance spring and the machine head pressure regulating spring match each other in terms of line diameter, outer diameter, elastic coefficient and effective number of turns, and their torque increments offset each other within the working range of the machine head to achieve a balancing effect; the machine head pressure regulating motor drives the screw to extend and retract through forward and reverse rotation, thereby tightening and loosening the wire rope, and the other end of the wire rope is connected to the machine head pressure regulating spring to control the elongation and shortening of the machine head pressure regulating spring. In this way, the machine head pressure regulating motor drives the screw to extend and retract, thereby controlling the elongation of the machine head pressure regulating spring to control the torque applied to the machine head. The machine head pressure is thereby adjusted. The measuring displacement baffle is fixed on the screw of the machine head pressure regulating motor. The linear displacement sensor obtains the extension and contraction of the screw of the machine head pressure regulating motor by measuring the position of the displacement baffle, thereby obtaining the elongation of the machine head pressure regulating spring. The machine head pressure value at this time is calculated through the circuit board and displayed on the touch screen of the display screen; the encoder reader is connected to the machine head, and the encoder is connected to the main frame through the encoder mounting plate to measure the machine head angle to obtain the grinding torque. The encoder is connected to the circuit board through a data line to feedback the torque to further optimize the machine head pressure.

[0019] In summary, the user can adjust the head pressure on the touch screen of the display screen, and the circuit board controls the forward and reverse movement of the head pressure adjustment motor according to the signal of the touch screen of the display screen to adjust the head pressure; the linear displacement sensor measures the elongation of the screw of the head pressure adjustment motor, and calculates the head pressure through the circuit board to form a closed loop, and the head pressure balance spring and the head pressure adjustment spring match each other to ensure that the head pressure is stable during the edge grinding process; in addition, the circuit board automatically adjusts the pressure of each step according to the edge grinding steps to optimize the edge grinding time; the circuit board reads the head angle through the encoder, calculates the grinding torque, and adjusts the head pressure according to the grinding torque to further optimize the grinding time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A side view of a pressure balance and automatic adjustment system for the head of an eyeglass edge grinding machine proposed by the present invention;

[0021] Figure 2 This is an axonometric diagram of a head pressure balance and automatic adjustment system for an eyeglass edge grinding machine proposed by the present invention.

[0022] In the figure: 1 machine head pressure adjustment spring hanging foot, 2 machine head pressure adjustment spring, 3 wire rope, 4 pulley, 5 pulley hanging foot, 6 linear displacement sensor, 7 displacement baffle, 8 machine head pressure adjustment motor, 9 motor fixing plate, 10 pressure balance hanging foot, 11 machine head pressure balance spring, 12 machine head lifting block, 13 circuit board, 14 analog signal line, 15 power line, 16 display touch screen signal line, 17 display touch screen, 18 encoder, 19 encoder fixing plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1-2 , a head pressure balance and automatic adjustment system for eyeglass edge grinding machines, comprising a main frame, a head, a head pressure balance system, a head pressure automatic adjustment system, and a control display system,

[0025] The machine head pressure balance system includes a pressure balance hanging foot 10, a machine head pressure balance spring 11 and a machine head lifting block 12;

[0026] The machine head pressure automatic adjustment system includes a machine head pressure adjustment spring hanging foot 1, a machine head pressure adjustment spring 2, a wire rope 3, a pulley 4, a pulley bracket 5, a displacement sensor 6, a displacement baffle 7, a machine head pressure adjustment motor 8, and a motor fixing plate 9;

[0027] The control display system includes a circuit board 13, an analog signal line 14, a power line 15, a display screen touch screen signal line 16, a display screen touch screen 17, an encoder 18, and an encoder mounting plate 19;

[0028] One end of the machine head pressure regulating spring 2 is hung on the machine head pressure regulating spring hanging foot 1, and the other end of the machine head pressure regulating spring 2 is connected to the wire rope 3. The other end of the wire rope 3 passes around the pulley 4 and is connected to the machine head pressure regulating motor 8. The machine head pressure regulating motor 8 drives the screw to retract and retract by rotating forward and reverse directions, thereby tightening and loosening the wire rope 3. The machine head pressure regulating motor 8 is connected to the machine head through the motor fixing plate 9. The shaft end of the machine head pressure regulating motor 8 is equipped with a displacement baffle 7. The pulley 4 is installed on the machine head through the pulley bracket 5. The pulley bracket 5 is equipped with a displacement sensor 6. The two ends of the machine head pressure balance spring 11 are respectively connected to the pressure balance hanging foot 10 and the machine head lifting block 12.

[0029] The probe of the displacement sensor 6 is against the displacement baffle 7 to measure the displacement of the head pressure regulating motor 8. The circuit board 13 is connected to the displacement sensor 6 through the analog signal line 14 to obtain an analog voltage value. The circuit board 13 is connected to the head pressure regulating motor 8 through the power line 15 to control the forward and reverse movement of the head pressure regulating motor 8. The reader of the encoder 18 is connected to the head. The encoder 18 is connected to the main frame through the encoder mounting plate 19 to measure the head angle to obtain the grinding torque. The encoder 18 is connected to the circuit board 13 through the data line to feedback the torque to further optimize the head pressure. The circuit board 13 is connected to the display touch screen 17 through the display touch screen signal line 16 to realize the display of the head pressure and the switching of the head pressure.

[0030] The machine head pressure balancing spring 11 and the machine head pressure regulating spring 2 match each other in terms of wire diameter, outer diameter, elastic coefficient and effective number of turns.

[0031] Working principle: In the present invention, the machine head pressure balance spring 11 and the machine head pressure regulating spring 2 match each other in terms of line diameter, outer diameter, elastic coefficient and effective number of turns. Within the working range of the machine head, their torque increments offset each other to achieve a balancing effect; the machine head pressure regulating motor 8 drives the screw to extend and retract by rotating forward and reverse directions, thereby tightening and loosening the wire rope 3. The other end of the wire rope 3 is connected to the machine head pressure regulating spring 2 to control the elongation and shortening of the machine head pressure regulating spring 2. In this way, the machine head pressure regulating motor 8 drives the screw to extend and retract, thereby controlling the elongation of the machine head pressure regulating spring 2 to control the torque applied to the machine head. To adjust the machine head pressure, the measuring displacement baffle 7 is fixed on the screw of the machine head pressure regulating motor 8. The linear displacement sensor 6 obtains the extension and contraction of the screw of the machine head pressure regulating motor 8 by measuring the position of the displacement baffle 7, thereby obtaining the elongation of the machine head pressure regulating spring 2. The machine head pressure value at this time is calculated through the circuit board 13 and displayed on the display touch screen 17; the encoder 18 reader is connected to the machine head, and the encoder 18 is connected to the main frame through the encoder mounting plate 19 to measure the machine head angle to obtain the grinding torque. The encoder 18 is connected to the circuit board 13 through a data line to feedback the torque to further optimize the machine head pressure.

[0032] In summary, the user can adjust the head pressure on the display screen touch screen 17, and the circuit board 13 controls the forward and reverse movement of the head pressure adjustment motor 8 according to the signal of the display screen touch screen 17 to adjust the head pressure; the linear displacement sensor 6 measures the screw extension of the head pressure adjustment motor 8, and calculates the head pressure through the circuit board 13 to form a closed loop, and the head pressure balance spring 11 and the head pressure adjustment spring 2 match each other to ensure that the head pressure is stable during the edge grinding process; in addition, the circuit board 13 automatically adjusts the pressure of each step according to the edge grinding steps to optimize the edge grinding time; the circuit board 13 reads the head angle through the encoder 18, calculates the grinding torque, and adjusts the head pressure according to the grinding torque to further optimize the grinding time.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A head pressure balance and automatic adjustment system for eyeglass edge grinding machines, comprising a main frame, a head, a head pressure balance system, a head pressure automatic adjustment system, and a control and display system, characterized in that: The machine head pressure balance system comprises a pressure balance hanging foot (10), a machine head pressure balance spring (11) and a machine head lifting block (12); The machine head pressure automatic adjustment system comprises a machine head pressure adjustment spring hanging foot (1), a machine head pressure adjustment spring (2), a steel wire rope (3), a pulley (4), a pulley bracket (5), a displacement sensor (6), a displacement baffle (7), a machine head pressure adjustment motor (8), and a motor fixing plate (9); The control display system comprises a circuit board (13), an analog signal line (14), a power line (15), a display screen touch screen signal line (16), a display screen touch screen (17), an encoder (18), and an encoder mounting plate (19); One end of the machine head pressure regulating spring (2) is hung on the machine head pressure regulating spring hanging foot (1), and the other end of the machine head pressure regulating spring (2) is connected to the wire rope (3). The other end of the wire rope (3) passes around the pulley (4) and is connected to the machine head pressure regulating motor (8). The machine head pressure regulating motor (8) drives the screw rod to extend and retract by rotating forward and reverse directions, thereby tightening and loosening the wire rope (3). The machine head pressure regulating motor (8) is connected to the machine head through a motor fixing plate (9). A displacement baffle (7) is installed at the shaft end of the machine head pressure regulating motor (8). The pulley (4) is installed on the machine head through a pulley bracket (5). A displacement sensor (6) is installed on the pulley bracket (5). The two ends of the machine head pressure balance spring (11) are respectively connected to the pressure balance hanging foot (10) and the machine head lifting block (12).

2. The head pressure balance and automatic adjustment system of an eyeglass edge grinding machine according to claim 1, characterized in that: The probe of the displacement sensor (6) is pressed against the displacement baffle (7) to measure the displacement of the machine head pressure regulating motor (8).

3. The head pressure balance and automatic adjustment system of an eyeglass edge grinding machine according to claim 1, characterized in that: The circuit board (13) is connected to the displacement sensor (6) via an analog signal line (14) to obtain an analog voltage value.

4. The head pressure balance and automatic adjustment system of an eyeglass edge grinding machine according to claim 3, characterized in that: The circuit board (13) is connected to the machine head pressure regulating motor (8) via a power line (15) to control the forward and reverse movement of the machine head pressure regulating motor (8).

5. The head pressure balance and automatic adjustment system of an eyeglass edge grinding machine according to claim 4, characterized in that: The reader of the encoder (18) is connected to the machine head, and the encoder (18) is connected to the main frame through an encoder mounting plate (19) to measure the angle of the machine head and thus obtain the grinding torque.

6. The head pressure balance and automatic adjustment system of an eyeglass edge grinding machine according to claim 5, characterized in that: The encoder (18) is connected to the circuit board (13) via a data line to feedback torque to further optimize the machine head pressure, and the circuit board (13) is connected to the display screen touch screen (17) via a display screen touch screen signal line (16) to display the machine head pressure and switch the machine head pressure.

7. The eyeglass edge grinding machine head pressure balance and automatic adjustment system according to claim 1, characterized in that: The machine head pressure balancing spring (11) and the machine head pressure regulating spring (2) match each other in terms of wire diameter, outer diameter, elastic coefficient and effective number of turns.

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