Precise control mechanism for upper roller of three-roller plate bending machine

Abstract

The utility model relates to the technical field of metal plate processing equipment, in particular to an upper roller precision control mechanism of a three-roller plate bending machine. The magnetic railing ruler is used as a position feedback device, and compared with a traditional encoder or a proximity switch, the magnetic railing ruler has higher measurement precision and stability. The machining precision and efficiency of the three-roller plate bending machine can be improved. The working principle of the magnetic railing ruler is based on magnetic field detection and is not easily influenced by external electromagnetic interference. This ensures the reliability and stability of the control system in a complex industrial environment. The magnetic railing ruler is compact in structure, convenient to install and low in maintenance cost. Therefore, the overall operation cost and the maintenance difficulty of the three-roller plate bending machine are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal plate processing equipment, in particular to a precision control mechanism for an upper roller of a three-roller plate rolling machine. Background Art

[0002] As a key piece of metal sheet processing equipment, three-roller plate rolling machines are widely used in bending, curling, and other processes. Their control systems are crucial for processing accuracy and efficiency. To improve sheet metal processing precision, the upper roller must be precisely positioned. Existing three-roller plate rolling machines use proximity switches or encoders on the sides of the upper rollers as position feedback elements, resulting in limited accuracy and susceptibility to environmental interference. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a precision control mechanism for the upper roller of a three-roller plate rolling machine, so as to improve the position feedback accuracy of the upper roller of the three-roller plate rolling machine.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A precision control mechanism for the upper roller of a three-roller plate rolling machine, comprising:

[0006] frame;

[0007] A left lifting seat, wherein the left lifting seat is escalably connected to the frame;

[0008] The left lifting drive mechanism is used to drive the left lifting seat to move up and down;

[0009] a right lifting seat, the right lifting seat being escalably connected to the frame;

[0010] The right lifting drive mechanism is used to drive the right lifting seat to move up and down;

[0011] An upper roller body, the two ends of which are rotatably connected to the left lifting seat and the right lifting seat through bearing seats respectively;

[0012] A left magnetic scale body, wherein the left magnetic scale body is vertically arranged on the frame;

[0013] A left reading head, the left reading head being connected to the left lifting base via a first connecting member, the left reading head facing the magnetic stripes of the left magnetic scale body;

[0014] The right magnetic scale body, the left magnetic scale body is arranged on the frame along the vertical direction;

[0015] A right reading head, connected to the right lifting base via a second connecting member, and facing the magnetic stripes of the right magnetic scale body;

[0016] An electrical control unit is electrically connected to the left lifting drive mechanism, the right lifting drive mechanism, the left reading head and the right reading head respectively.

[0017] Furthermore, the three-roller plate rolling machine upper roller precision control mechanism further includes:

[0018] A first vertical guide rail is provided with a mounting groove for limiting the placement of a left magnetic scale, and the left magnetic scale is connected to the mounting groove;

[0019] The first slider is slidably connected to the first vertical guide rail, and the left reading head is connected to the first slider.

[0020] Furthermore, the three-roller plate rolling machine upper roller precision control mechanism further includes:

[0021] A second vertical guide rail is provided with a mounting groove for limiting the placement of a right magnetic scale, and the right magnetic scale is connected to the mounting groove;

[0022] The second slider is slidably connected to the second vertical guide rail, and the left reading head is connected to the first slider.

[0023] Furthermore, in the precision control mechanism of the upper roller of the three-roller plate rolling machine, the left lifting drive mechanism is a first hydraulic cylinder, the upper end of the first hydraulic cylinder is pivotally connected to the frame, and the lower end is pivotally connected to the left lifting seat.

[0024] Furthermore, in the precision control mechanism of the upper roller of the three-roller plate rolling machine, the right lifting drive mechanism is a second hydraulic cylinder, the upper end of the second hydraulic cylinder is pivotally connected to the frame, and the lower end is pivotally connected to the right lifting seat.

[0025] Furthermore, in the above-mentioned upper roller precision control mechanism of the three-roller plate rolling machine, the first connecting member and the second connecting member have the same structure;

[0026] The first connecting member includes a connecting rod, one end of which is pivotally connected to the left lifting seat, and the other end of which is pivotally connected to the first sliding block.

[0027] Furthermore, in the precision control mechanism of the upper roller of the above-mentioned three-roller plate rolling machine, the electrical control unit includes an analog module and a PLC. The analog module is used to convert the position signal of the left magnetic scale read by the left reading head and the position signal of the right magnetic scale read by the right reading head into electrical signals and transmit them to the PLC. The PLC is used to compare the electrical signals with the preset target positions and send instructions to the left lifting drive mechanism and the right lifting drive mechanism to adjust the positions of the left lifting seat and the right lifting seat through the left lifting drive mechanism and the right lifting drive mechanism.

[0028] Furthermore, the precision control mechanism for the upper roller of the three-roller plate rolling machine further includes an HMI, which is electrically connected to the PLC.

[0029] The beneficial effects of this utility model include: using a magnetic scale as a position feedback device, it achieves higher measurement accuracy and stability than traditional encoders or proximity switches. This helps improve the processing accuracy and efficiency of the three-roller plate rolling machine. The magnetic scale operates based on magnetic field detection and is not susceptible to external electromagnetic interference. This ensures the reliability and stability of the control system in complex industrial environments. The magnetic scale is compact, easy to install, and has low maintenance costs. This reduces the overall operating cost and maintenance difficulty of the three-roller plate rolling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of a precision control mechanism for the upper roller of a three-roller plate rolling machine according to a specific embodiment of the present utility model;

[0031] Figure 2 for Figure 1 A magnified view of part A;

[0032] Figure 3 for Figure 1 A magnified view of part B;

[0033] Description of labels:

[0034] 1. Frame;

[0035] 2. Left elevator seat;

[0036] 3. Left lifting drive mechanism;

[0037] 4. Right lift seat;

[0038] 5. Right lifting drive mechanism;

[0039] 6. Upper roller body;

[0040] 71. First vertical guide rail; 72. Left magnetic scale body; 73. First slider;

[0041] 81. Second vertical guide rail; 82. Second slider;

[0042] 9. Connecting rod. DETAILED DESCRIPTION

[0043] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0044] Please refer to Figures 1 to 3 The specific embodiment of the utility model relates to a precision control mechanism for the upper roller of a three-roller plate rolling machine, comprising:

[0045] Rack 1;

[0046] A left lifting base 2, wherein the left lifting base 2 is escalably connected to the frame 1;

[0047] The left lifting drive mechanism 3 is used to drive the left lifting seat 2 to move up and down;

[0048] A right lifting seat 4, wherein the right lifting seat 4 is escalably connected to the frame 1;

[0049] The right lifting drive mechanism 5 is used to drive the right lifting seat 4 to move up and down;

[0050] An upper roller body 6, the two ends of which are rotatably connected to the left lifting seat 2 and the right lifting seat 4 through bearing seats respectively;

[0051] The left magnetic scale body 72 is vertically arranged on the frame 1;

[0052] A left reading head, connected to the left lifting base 2 via a first connecting member, and facing the magnetic stripes of the left magnetic scale body 72;

[0053] The right magnetic scale body, the left magnetic scale body 72 is arranged on the frame 1 along the vertical direction;

[0054] A right reading head, connected to the right lifting base 4 via a second connecting piece, and facing the magnetic stripes of the right magnetic scale body;

[0055] An electrical control unit is electrically connected to the left lifting drive mechanism 3, the right lifting drive mechanism 5, the left reading head and the right reading head respectively.

[0056] In the above implementation, the use of a magnetic scale as a position feedback device offers higher measurement accuracy and stability than traditional encoders or proximity switches. This helps improve the processing accuracy and efficiency of the three-roll plate rolling machine. The magnetic scale operates based on magnetic field detection and is less susceptible to external electromagnetic interference. This ensures the reliability and stability of the control system in complex industrial environments. The magnetic scale is compact, easy to install, and has low maintenance costs. This reduces the overall operating cost and maintenance difficulty of the three-roll plate rolling machine.

[0057] As a preferred embodiment, it also includes:

[0058] A first vertical guide rail 71 is provided with a mounting groove for limiting the placement of a left magnetic scale, and the left magnetic scale is connected to the mounting groove;

[0059] The first slider 73 is slidably connected to the first vertical guide rail 71 , and the left reading head is connected to the first slider 73 .

[0060] As a preferred embodiment, it also includes:

[0061] A second vertical guide rail 81 is provided with a mounting groove for limiting the placement of a right magnetic scale, and the right magnetic scale is connected to the mounting groove;

[0062] The second slider 82 is slidably connected to the second vertical guide rail 81, and the left reading head is connected to the first slider 73.

[0063] In the above embodiment, the guide rail and the slider are provided to position the magnetic scale body and the reading head, thereby further improving the position feedback accuracy and stability of the upper roller of the three-roller plate rolling machine.

[0064] As a preferred embodiment, the left lifting drive mechanism 3 is a first hydraulic cylinder, the upper end of which is pivotally connected to the frame 1 , and the lower end of which is pivotally connected to the left lifting seat 2 .

[0065] As a preferred embodiment, the right lifting drive mechanism 5 is a second hydraulic cylinder, the upper end of which is pivotally connected to the frame 1 , and the lower end of which is pivotally connected to the right lifting seat 4 .

[0066] As a preferred embodiment, the first connecting member and the second connecting member have the same structure;

[0067] The first connecting member includes a connecting rod 9 , one end of which is pivotally connected to the left lifting seat 2 , and the other end of which is pivotally connected to the first sliding block 73 .

[0068] As a preferred embodiment, the electrical control unit includes an analog module and a PLC. The analog module is used to convert the position signal of the left magnetic scale read by the left reading head and the position signal of the right magnetic scale read by the right reading head into electrical signals and transmit them to the PLC. The PLC is used to compare the electrical signals with the preset target positions and send instructions to the left lifting drive mechanism 3 and the right lifting drive mechanism 5 to adjust the positions of the left lifting seat 2 and the right lifting seat 4 through the left lifting drive mechanism 3 and the right lifting drive mechanism 5.

[0069] As a preferred embodiment, it further includes an HMI, which is electrically connected to the PLC.

[0070] Human-machine interface (HMI) is an interface system that allows humans to interact with machines. HMI plays a vital role in industrial automation, robotics, control systems, medical devices, game consoles, computer software, and many other fields.

[0071] In the above embodiment, the control system will monitor the position information of the upper roller in real time and compare it with the target position. If a deviation is found, the control command will be automatically adjusted to achieve precise control of the upper roller.

[0072] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A precision control mechanism for the upper roller of a three-roller plate rolling machine, characterized in that: include: frame; A left lifting seat, wherein the left lifting seat is escalably connected to the frame; The left lifting drive mechanism is used to drive the left lifting seat to move up and down; a right lifting seat, the right lifting seat being escalably connected to the frame; The right lifting drive mechanism is used to drive the right lifting seat to move up and down; An upper roller body, the two ends of which are rotatably connected to the left lifting seat and the right lifting seat respectively through bearing seats; A left magnetic scale body, wherein the left magnetic scale body is vertically arranged on the frame; A left reading head, the left reading head being connected to the left lifting base via a first connecting member, the left reading head facing the magnetic stripes of the left magnetic scale body; The right magnetic scale body, the left magnetic scale body is arranged on the frame along the vertical direction; A right reading head, connected to the right lifting base via a second connecting member, and facing the magnetic stripes of the right magnetic scale body; An electrical control unit is electrically connected to the left lifting drive mechanism, the right lifting drive mechanism, the left reading head and the right reading head respectively.

2. The upper roller precision control mechanism of the three-roller plate rolling machine according to claim 1 is characterized in that: Also includes: A first vertical guide rail is provided with a mounting groove for limiting the placement of a left magnetic scale, and the left magnetic scale is connected to the mounting groove; The first slider is slidably connected to the first vertical guide rail, and the left reading head is connected to the first slider.

3. The precision control mechanism for the upper roller of the three-roller plate rolling machine according to claim 1 is characterized in that: Also includes: A second vertical guide rail is provided with a mounting groove for limiting the placement of a right magnetic scale, and the right magnetic scale is connected to the mounting groove; The second slider is slidably connected to the second vertical guide rail, and the left reading head is connected to the first slider.

4. The upper roller precision control mechanism of the three-roller plate rolling machine according to claim 1 is characterized in that: The left lifting drive mechanism is a first hydraulic cylinder, the upper end of which is pivotally connected to the frame, and the lower end of which is pivotally connected to the left lifting seat.

5. The upper roller precision control mechanism of the three-roller plate rolling machine according to claim 1 is characterized in that: The right lifting drive mechanism is a second hydraulic cylinder, the upper end of which is pivotally connected to the frame, and the lower end of which is pivotally connected to the right lifting seat.

6. The precision control mechanism for the upper roller of the three-roller plate rolling machine according to claim 1 is characterized in that: The first connecting member and the second connecting member have the same structure; The first connecting member includes a connecting rod, one end of which is pivotally connected to the left lifting seat, and the other end of which is pivotally connected to the first sliding block.

7. The upper roller precision control mechanism of the three-roller plate rolling machine according to claim 1 is characterized in that: The electrical control unit includes an analog module and a PLC. The analog module is used to convert the position signal of the left magnetic scale read by the left reading head and the position signal of the right magnetic scale read by the right reading head into electrical signals and transmit them to the PLC. The PLC is used to compare the electrical signals with the preset target positions and send instructions to the left lifting drive mechanism and the right lifting drive mechanism to adjust the positions of the left lifting seat and the right lifting seat through the left lifting drive mechanism and the right lifting drive mechanism.

8. The upper roller precision control mechanism of the three-roller plate rolling machine according to claim 7 is characterized in that: The system also includes an HMI, which is electrically connected to the PLC.

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