Intelligent servo press roll

Abstract

The application discloses intelligent servo pressure roller and relates to the technical field of tire rubber processing equipment.The intelligent servo pressure roller comprises a pressure roller unit, a force measurement control unit, a displacement measurement control unit, a linear unit, a power unit, a guide unit, a drag chain unit and a mounting interface unit; the power unit is in transmission connection with the linear unit; the front end of the linear unit is connected with the force measurement control unit; the front end of the force measurement control unit is connected with the pressure roller unit; the displacement measurement control unit is connected with the linear unit and the guide unit respectively; the guide unit is arranged on the side of the linear unit; the drag chain unit is arranged corresponding to the guide unit; the mounting interface unit is arranged on the rear of the linear unit; the power unit comprises a servo motor; when the servo motor is in parallel installation, the output shaft of the servo motor is fixed with a synchronous belt wheel A, and the end of the screw rod of the linear unit is fixed with a synchronous belt wheel B.The application can realize double closed loop precision control of displacement and pressure, and effectively improve the quality of tire rolling forming.

Description

Technical Field

[0001] This invention relates to the field of tire rubber processing equipment technology, and in particular to intelligent servo pressure rollers. Background Technology

[0002] In the tire manufacturing process, the rolling and bonding of components such as tread, sidewall, and belt layer is the core step in the tire forming process. As a key component of the forming machine, the pressure roller mechanism directly determines the density and uniformity of the rubber compound bonding by its pressing accuracy, response speed, and pressure stability, which ultimately affects the dynamic balance performance, structural durability, and overall quality of the tire.

[0003] In the early stages of tire forming machine development, the industry generally used fixed-pressure roller mechanisms. These mechanisms lacked dynamically adjustable pressure parameters, making them unsuitable for adapting to the varying curvatures and thicknesses of different sections of the tire blank. Consequently, both fit and forming quality were significantly limited. As the industry's demands for forming quality have increased, most tire manufacturers now use piston-type multi-plate rollers, also known in the industry as multi-layer rollers. These rely on multiple sets of independent roller plates to achieve segmented pressing, improving fit to some extent. However, these multi-plate rollers still suffer from numerous insurmountable technical defects in actual production.

[0004] The original tire forming machine's multi-plate pressure rollers consisted of multiple independent pistons, pressure roller plates, and an integrated square-shaft cylinder. An electromagnetic proportional control valve regulated the air pressure and flow rate in each branch of the square-shaft cylinder, driving the corresponding small pistons to extend and retract, thereby controlling the downward pressure of each pressure roller plate. In actual production, due to the inherent compressibility of air, pressure transmission within the air circuit exhibits a natural lag, resulting in slow response speed and poor responsiveness of the pressure roller plates to control commands. At locations where the tire blank curvature changes abruptly or in the transition area of ​​the rubber compound joint, the pressure cannot be dynamically adjusted in time according to the working conditions, directly causing uneven local pressing force and affecting the tire manufacturing quality and finished product consistency.

[0005] Meanwhile, the original square-shaft cylinder of the pressure roller mechanism was severely limited by the internal installation space, forcing a compression of the diameter design of each independent air passage. The intake and exhaust volumes of each air passage were generally small, directly resulting in slow extension and retraction speeds of the pressure rollers, thus hindering the overall production cycle improvement of the equipment. Furthermore, the densely arranged multiple air passages were difficult to seal, and after long-term operation and wear, cross-contamination between different air passages was highly likely. This cross-contamination was particularly pronounced in the air passages in the middle area of ​​the cylinders due to their denser arrangement. Cross-contamination caused interference between the output pressures of each group of pressure rollers, resulting in actual pressure values ​​deviating from the process settings and further exacerbating fluctuations in pressing quality.

[0006] In summary, pneumatic control is not a precision control method. Pressure output is easily affected by multiple external factors such as air source pressure fluctuations, ambient temperature changes, and pipeline losses, resulting in insufficient control stability. Furthermore, the existing pneumatic pressure roller adopts an open-loop control mode without a real-time feedback adjustment mechanism for parameters such as position and pressure. It cannot dynamically correct output parameters according to the actual pressing state, making it difficult to meet the current high-performance tire's process requirements for high-precision molding and high-consistency pressing, thus restricting further improvements in tire molding quality and production efficiency.

[0007] Therefore, there is an urgent need for an intelligent servo pressure roller to solve the above-mentioned technical problems. Summary of the Invention

[0008] This invention discloses an intelligent servo pressure roller, which employs a closed-loop control architecture combining servo drive with dual displacement and pressure detection. Compared to traditional pneumatic pressure rollers, which suffer from slow response, large pressure fluctuations, and insufficient control precision due to the compressibility of gas, this solution offers faster dynamic response and more stable output characteristics. It boasts high position control precision and high pressure regulation precision, effectively achieving micron-level displacement control and precise pressure output. This ensures uniform and stable pressure throughout the rolling process, reliably guaranteeing the rolling adhesion density of the tire tread, sidewall, and belt layers, significantly improving tire forming consistency and finished product dimensional accuracy. In summary, this invention solves the problems in the background technology.

[0009] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0010] The intelligent servo pressure roller of the present invention includes a pressure roller unit, a force measurement and control unit, a displacement measurement and control unit, a linear unit, a power unit, a guide unit, a drag chain unit, and an installation interface unit;

[0011] The power unit is connected to the linear unit via a transmission; the front end of the linear unit is connected to the force measurement and control unit; the front end of the force measurement and control unit is connected to the pressure roller unit; the displacement measurement and control unit is connected to both the linear unit and the guide unit; the guide unit is located on the side of the linear unit; the cable chain unit is arranged corresponding to the guide unit; and the mounting interface unit is located at the rear of the linear unit.

[0012] The power unit includes a servo motor; when the servo motor is installed in parallel, the output shaft of the servo motor is fixed with a synchronous pulley A, and the end of the lead screw of the linear unit is fixed with a synchronous pulley B; a synchronous belt is wound between the synchronous pulley A and the synchronous pulley B; the servo motor is fixed to a motor mounting plate; the motor mounting plate is provided with an elongated hole; a tensioning bolt passes through the elongated hole and the servo motor; an anti-loosening nut is threadedly connected to the tensioning bolt; when the servo motor is installed in a linear configuration, the output shaft of the servo motor is coaxially connected to the lead screw through a coupling.

[0013] Further, the linear unit includes an outer cylinder, a nut, a piston, a piston rod, a connector, a bearing housing, a front flange, a locking nut, and a guide sleeve; the lead screw is mounted between the bearing housing and the front flange via a bearing; the locking nut is threadedly engaged with the end of the lead screw; the nut is threadedly engaged with the lead screw; the nut is fixedly connected to the piston; the piston is fixedly connected to the piston rod; the front end of the piston rod is fixedly connected to the connector; an anti-reverse key is fixed to the side of the piston; the anti-reverse key is embedded in the keyway on the inner wall of the outer cylinder; the guide sleeve is disposed between the front flange and the piston; a front limit is fixed to the inner side of the front flange; a rear limit is fixed to the inner side of the bearing housing.

[0014] Furthermore, the displacement measurement and control unit includes a fixed ruler, a movable ruler, a connecting block, a fixed ruler seat A, a fixed ruler seat B, a positioning pin A, a positioning pin B, and a positioning pin C; the fixed ruler is engaged in the positioning grooves of the fixed ruler seat A and the fixed ruler seat B; the fixed ruler seat A is positioned to the bearing seat by the positioning pin A; the fixed ruler seat B is positioned to the front flange by the positioning pin B; the movable ruler is engaged in the positioning groove of the connecting block; the connecting block is positioned to the guide rail plate of the guide unit by the positioning pin C.

[0015] Furthermore, the force measurement and control unit includes a force sensor, a connecting plate, and a positioning pin; the top of the force sensor is fixedly connected to the connector; the bottom of the force sensor is fixedly connected to the connecting plate; the positioning pin passes through the bottom pin hole of the force sensor and the pin hole of the connecting plate; the connecting plate is fixedly connected to the pressure roller unit.

[0016] Furthermore, the pressure roller unit includes a pressure roller sheet, a mandrel, a spring, and baffles; the pressure roller sheet is sleeved on the outside of the mandrel; the spring is disposed between the inner end face of the pressure roller sheet and the end face of the mandrel; both ends of the mandrel are fixedly connected to the two baffles respectively; the height from the top surface to the bottom surface of the mandrel is less than the height from the top surface to the bottom surface of the inner hole of the pressure roller sheet;

[0017] Furthermore, the height from the top surface to the bottom surface of the mandrel is less than the height from the top surface to the bottom surface of the inner hole of the pressure roller.

[0018] Furthermore, the guide unit includes a slide rail, a slider, and a guide plate; the slide rail is fixed to the side of the outer cylinder; the slider slides in cooperation with the slide rail; and the slider is fixedly connected to the guide plate.

[0019] Furthermore, the installation interface unit includes a connecting seat, a key bar, an outer cylinder body connecting hole, an outer cylinder body positioning slot, a first positioning pin hole, a positioning key bar hole, a second positioning pin hole, and a device connecting hole; the outer cylinder body positioning slot and the positioning key bar hole are both opened on the end face of the connecting seat facing the outer cylinder body; the outer cylinder body positioning slot is engaged with the end of the outer cylinder body; the positioning key bar hole is inserted into the key bar; the outer cylinder body connecting hole is opened through the connecting seat; a threaded connector passes through the outer cylinder body connecting hole and is connected and fixed to the outer cylinder body; the first positioning pin hole, the second positioning pin hole, and the device connecting hole are all opened on the end face of the connecting seat away from the outer cylinder body; positioning pins pass through the first positioning pin hole and the second positioning pin hole respectively; the threaded connector passes through the device connecting hole.

[0020] Furthermore, the cable chain unit includes a moving end, a fixed end, a cable chain body, and a cable clamp; the moving end is fixedly connected to the guide rail plate; the fixed end is fixedly connected to the outer cylinder body; and the cable clamps are respectively disposed on the guide rail plate and the moving end.

[0021] The present invention has the following advantages over the prior art:

[0022] (1) This technical solution adopts a closed-loop control architecture with servo drive and dual detection of displacement and pressure. Compared with the shortcomings of traditional pneumatic rollers, which are affected by the compressibility of gas, such as slow response, large pressure fluctuation and insufficient control accuracy, this solution has a faster dynamic response speed and more stable output characteristics. The position control accuracy is high and the pressure adjustment accuracy is high. It can effectively realize micron-level displacement control and precise pressure output, ensuring uniform and stable pressure throughout the rolling process. It can stably ensure the rolling adhesion density of the tire tread, sidewall and belt layer, and significantly improve the consistency of tire forming and the dimensional accuracy of finished products.

[0023] (2) This technical solution can effectively realize the real-time acquisition and storage of displacement and pressure data throughout the rolling process. The complete pressing process data of a single tire can be recorded and stored, which facilitates quality traceability and iterative optimization of process parameters in the production process and supports digital management and control of production. At the same time, it can automatically match the corresponding pressure for the curvature and thickness difference of different sections of the tire blank, dynamically adjust the extension displacement of the pressure roller, and adaptively fit the outline of the tire blank throughout the process. It can effectively avoid common molding defects such as bonding bubbles, wrinkles, joints not being pressed firmly, and rubber stretching deviation, reduce product rework rate, and improve production yield and overall product quality.

[0024] (3) This technical solution sets up two servo motor mounting structures, which can flexibly select parallel installation and linear installation methods according to the equipment installation space and production conditions, making it more adaptable; at the same time, it is equipped with adjustable tension structure and anti-loosening structure, which can effectively ensure the assembly stability of transmission structure, reduce transmission gap and loosening risk during long-term operation of equipment, improve the stability and service life of equipment operation, and reduce the frequency and cost of equipment maintenance.

[0025] (4) This technical solution can effectively ensure the straightness and stability of the pressure roller during the telescopic operation by setting up an independent guide unit, a drag chain unit and a high-precision positioning installation interface unit, and avoid the problems of offset and shaking during the pressing process. At the same time, the standardized installation and positioning structure facilitates the quick assembly, disassembly and debugging of the equipment. The drag chain structure can play a good protective role for the equipment lines and pipelines, effectively reduce the problems of line wear and tear damage, ensure the long-term continuous and stable operation of the equipment, and adapt to the large-scale and continuous tire production operation scenario. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the parallel-mounted motor of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the motor with linear mounting according to the present invention;

[0029] Figure 3 This is an exploded structural diagram of the parallel-mounted motor of the present invention;

[0030] Figure 4 This is a schematic diagram of the front cross-sectional structure of the parallel installation of the motor of the present invention;

[0031] Figure 5This is a schematic diagram of the front cross-sectional structure of the motor installed in a straight line according to the present invention;

[0032] Figure 6 This is a schematic diagram of the left-side structure of the parallel-mounted motor of the present invention;

[0033] Figure 7 This is a right-side view of the parallel-mounted motor structure of the present invention;

[0034] Figure 8 This is a rear view schematic diagram of the parallel mounting structure of the motor of the present invention;

[0035] Figure 9 This is a schematic cross-sectional view of the pressure roller unit of the present invention;

[0036] Figure 10 This is a schematic diagram of the installation structure of the displacement measurement and control unit of the present invention;

[0037] Figure 11 This is a schematic diagram of the structure of the guide unit of the present invention;

[0038] Figure 12 This is a schematic diagram of the connection structure for installing the interface unit of the present invention;

[0039] Figure 13 This is a schematic diagram of the anti-reverse structure of the linear unit of the present invention;

[0040] Figure 14 This is a three-dimensional schematic diagram of the rolling operation with the motor installed in parallel according to the present invention;

[0041] Figure 15 This is a three-dimensional schematic diagram of the rolling operation of the motor in a straight installation according to the present invention.

[0042] In the diagram: 0100, Pressure roller unit; 0101, Pressure roller plate; 0102, Mandrel; 0103, Spring; 0104, Baffle; 0200, Force measurement and control unit; 0201, Force sensor; 0202, Connecting plate; 0203, Positioning pin; 0300, Displacement measurement and control unit; 0301, Fixed scale; 0302, Moving scale; 0303, Connecting block; 0304, Fixed scale holder A; 0305, Fixed... Scale base B; 0306, Locating pin A; 0307, ​​Locating pin B; 0308, Locating pin C; 0400, Linear unit; 0401, Piston rod; 0402, Lead screw; 0403, Nut; 0404, Piston; 0405, Connector; 0406, Guide sleeve; 0407, Tensioning bolt; 0408, Anti-loosening nut; 0409, Bearing housing; 0410, Front flange; 0411, Outer cylinder body; 04 12. Locking nut; 0413. Anti-reverse key; 0414. Rear limit switch; 0415. Front limit switch; 0500. Power unit; 0501. Servo motor; 0502. Synchronous pulley A; 0503. Synchronous pulley B; 0504. Coupling; 0505. Motor mounting plate; 0506. Synchronous belt; 0600. Guide unit; 0601. Slider; 0602. Slide rail; 0603. Guide rail plate; 0 700. Cable Carrier Unit; 0701. Moving End; 0702. Fixed End; 0703. Cable Carrier Body; 0704. Cable Clamp; 0800. Mounting Interface Unit; 0801. Connecting Seat; 0802. Key Bar; 0901. Outer Cylinder Body Connecting Hole; 0902. Outer Cylinder Body Positioning Slot; 0903. Positioning Pin Hole 1; 0904. Positioning Key Bar Hole; 0905. Positioning Pin Hole 2; 0906. Equipment Connecting Hole. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0045] Reference Figures 1-15The intelligent servo pressure roller includes a pressure roller unit 0100, a force measurement and control unit 0200, a displacement measurement and control unit 0300, a linear unit 0400, a power unit 0500, a guide unit 0600, a drag chain unit 0700, and an installation interface unit 0800.

[0046] The power unit 0500 is connected to the linear unit 0400 via a transmission; the front end of the linear unit 0400 is connected to the force measurement and control unit 0200; the front end of the force measurement and control unit 0200 is connected to the pressure roller unit 0100; the displacement measurement and control unit 0300 is connected to the linear unit 0400 and the guide unit 0600 respectively; the guide unit 0600 is located on the side of the linear unit 0400; the cable chain unit 0700 is arranged corresponding to the guide unit 0600; and the mounting interface unit 0800 is located at the rear of the linear unit 0400.

[0047] The power unit 0500 includes a servo motor 0501; when the servo motor 0501 is installed in parallel, the output shaft of the servo motor 0501 is fixed with a synchronous pulley A0502, and the end of the lead screw 0402 of the linear unit 0400 is fixed with a synchronous pulley B0503; a synchronous belt 0506 is wound between the synchronous pulley A0502 and the synchronous pulley B0503; the servo motor 0501 is fixed to the motor mounting plate 0505; the motor mounting plate 0505 is provided with an elongated hole; a tensioning bolt 0407 passes through the elongated hole and the servo motor 0501; a lock nut 0408 is threadedly connected to the tensioning bolt 0407; when the servo motor 0501 is installed in a linear configuration, the output shaft of the servo motor 0501 is coaxially connected to the lead screw 0402 through a coupling 0504.

[0048] Linear unit 0400 includes an outer cylinder body 0411, a nut 0403, a piston 0404, a piston rod 0401, a connector 0405, a bearing housing 0409, a front flange 0410, a locking nut 0412, and a guide sleeve 0406; a lead screw 0402 is mounted between the bearing housing 0409 and the front flange 0410 via a bearing; the locking nut 0412 is threaded to the end of the lead screw 0402; the nut 0403 is threaded to the lead screw 0402; the nut 0403 is threaded to the piston 0404. 404 is fixedly connected; piston 0404 is fixedly connected to piston rod 0401; the front end of piston rod 0401 is fixedly connected to connector 0405; anti-reverse key 0413 is fixed on the side of piston 0404; anti-reverse key 0413 is embedded in the keyway of the inner wall of outer cylinder 0411; guide sleeve 0406 is set between front flange 0410 and piston 0404; front limit 0415 is fixed on the inner side of front flange 0410; rear limit 0414 is fixed on the inner side of bearing seat 0409.

[0049] The displacement measurement and control unit 0300 includes a fixed scale 0301, a movable scale 0302, a connecting block 0303, a fixed scale seat A0304, a fixed scale seat B0305, a positioning pin A0306, a positioning pin B0307, ​​and a positioning pin C0308. The fixed scale 0301 is engaged in the positioning grooves of the fixed scale seat A0304 and the fixed scale seat B0305. The fixed scale seat A0304 is positioned on the bearing seat 0409 by the positioning pin A0306. The fixed scale seat B0305 is positioned on the front flange 0410 by the positioning pin B0307. The movable scale 0302 is engaged in the positioning groove of the connecting block 0303. The connecting block 0303 is positioned on the guide plate 0603 of the guide unit 0600 by the positioning pin C0308.

[0050] The force measurement and control unit 0200 includes a force sensor 0201, a connecting plate 0202, and a positioning pin 0203; the top of the force sensor 0201 is fixedly connected to the connector 0405; the bottom of the force sensor 0201 is fixedly connected to the connecting plate 0202; the positioning pin 0203 passes through the bottom pin hole of the force sensor 0201 and the pin hole of the connecting plate 0202; the connecting plate 0202 is fixedly connected to the pressure roller unit 0100.

[0051] The pressure roller unit 0100 includes a pressure roller plate 0101, a spindle 0102, a spring 0103, and a baffle 0104; the pressure roller plate 0101 is sleeved on the outside of the spindle 0102; the spring 0103 is disposed between the inner end face of the pressure roller plate 0101 and the end face of the spindle 0102; both ends of the spindle 0102 are fixedly connected to the two baffles 0104 respectively; the height from the top surface to the bottom surface of the spindle 0102 is less than the height from the top surface to the bottom surface of the inner hole of the pressure roller plate 0101.

[0052] The guide unit 0600 includes a slide rail 0602, a slider 0601, and a guide plate 0603; the slide rail 0602 is fixed to the side of the outer cylinder body 0411; the slider 0601 slides with the slide rail 0602; the slider 0601 is fixedly connected to the guide plate 0603; the mounting interface unit 0800 includes a connecting seat 0801, a key bar 0802, an outer cylinder body connecting hole 0901, an outer cylinder body positioning slot 0902, a first positioning pin hole 0903, a positioning key bar hole 0904, a second positioning pin hole 0905, and an equipment connecting hole 0906; the outer cylinder body positioning slot 0902 and the positioning key bar hole 0904 are both opened on the end face of the connecting seat 0801 facing the outer cylinder body 0411; the outer cylinder body positioning slot 0902 is engaged with the end of the outer cylinder body 0411; the positioning key bar hole 0904 and the key bar 0802 are inserted into each other. The outer cylinder body connecting hole 0901 is opened through the connecting seat 0801; the threaded connector is opened through the outer cylinder body connecting hole 0901 and is connected and fixed to the outer cylinder body 0411; the positioning pin hole 1 0903, the positioning pin hole 2 0905 and the equipment connecting hole 0906 are all opened on the end face of the connecting seat 0801 opposite to the outer cylinder body 0411; the positioning pins are respectively opened through the positioning pin hole 1 0903 and the positioning pin hole 2 0905; the threaded connector is opened through the equipment connecting hole 0906; the cable chain unit 0700 includes a moving end 0701, a fixed end 0702, a cable chain body 0703 and a cable clamp 0704; the moving end 0701 is fixedly connected to the guide rail plate 0603; the fixed end 0702 is fixedly connected to the outer cylinder body 0411; the cable clamp 0704 is respectively set on the guide rail plate 0603 and the moving end 0701.

[0053] In the specific implementation process, after the equipment is powered on and started, the control system drives the servo motor 0501 to complete the origin return operation. Relying on the absolute encoder built into the servo motor 0501, the zero point calibration of the displacement is completed in conjunction with the fixed scale 0301 and the moving scale 0302 of the displacement measurement control unit 0300. If a relative encoder is selected, the zero point calibration is completed in conjunction with the fixed scale 0301 and the moving scale 0302 through the external initial signal sensor. After the incoming material detection signal of the production line is transmitted to the PLC controller, the program drives the power unit 0500 to move the linear unit 0400 to the preset working position. Then, according to the preset tire forming process parameters, the pressure roller unit 0100 is driven to press down and roll the tire tread, sidewall or belt layer rubber material.

[0054] Throughout the rolling process, the force sensor 0201 in the force measurement and control unit 0200 continuously collects the real-time pressing force value, which is converted into a standard electrical signal by the transmitter and transmitted to the PLC. At the same time, the displacement measurement and control unit 0300 synchronously feeds back the real-time displacement data of the pressure roller. The controller compares the collected force value with the preset process force value range, and adjusts the speed and direction of the servo motor 0501 in real time according to the difference. This drives the lead screw 0402 to adjust the extension or retraction of the pressure roller unit 0100, thereby dynamically correcting the rolling pressure and forming a dual closed-loop control of displacement and pressure. After the rolling of a single section of rubber material is completed, the servo motor 0501 drives the linear unit 0400 to reset to the initial zero position, waiting for the next set of incoming material signals to cycle through the operation.

[0055] During the equipment assembly and commissioning phase, press and hold the K4 button on the transmitter instrument to complete the zero-point calibration of the force value, offset the additional force of the equipment's own structure, and ensure the accuracy of the force value acquisition data. During the rolling process, all force values ​​and displacement timing data acquired by the transmitter are stored in the controller's memory in real time for subsequent retrieval and traceability. When the pressure roller unit 0100 presses down and contacts the tire blank, generating an overload impact, the spring 0103 inside the pressure roller 0101 is compressed, and the pressure roller 0101 can move upwards to buffer 3-5mm, reducing the damage to the rubber material and equipment structure caused by hard contact. The lateral torsional force generated by the rolling of the rubber material is dispersed and dissipated by the slide rail 0602 and slider 0601 of the guide unit 0600, reducing the lateral load borne by the force sensor 0201 and the linear unit 0400.

[0056] During the assembly stage, thread-locking adhesive is evenly applied to all threaded connection positions. Positioning pins and slots are used to achieve precise locking and limiting of each unit. The synchronous belt 0506 transmission structure adjusts belt tension using tension bolts 0407 and then locks in anti-loosening nuts 0408. The threaded sections of the lead screw 0402, piston 0404, and piston rod 0401 rely on locking nuts 0412, thread-locking adhesive, and anti-reverse keys 0413 to achieve axial anti-disengagement and circumferential limiting. During assembly, the parallelism and gap dimensions of the moving scale 0302 and fixed scale 0301 are controlled within the process tolerance range. All moving cables are stored within the cable chain unit 0700 and neatly fixed using cable clamps 0704 to prevent cable pulling and wear during movement.

[0057] Among them, the servo motor 0501 is equipped with two installation layouts, parallel and linear, which can be adapted to the internal installation space of different molding machines. The transmission structure of the synchronous pulley A0502 and synchronous pulley B0503 with synchronous belt 0506 is easy to disassemble and maintain. The structure of the coupling 0504 directly connected to the lead screw 0402 has a smaller transmission clearance, which helps to improve the consistency of displacement response.

[0058] Among them, the linear unit 0400 is equipped with front limit 0415 and rear limit 0414 structures to constrain the reciprocating stroke of piston 0404, the guide sleeve 0406 optimizes the linear motion stability of piston rod 0401, and the anti-reverse key 0413 restricts the circumferential deflection of piston 0404 and piston rod 0401, reducing the additional load in the transmission process of lead screw 0402.

[0059] Among them, the fixed ruler 0301 and the movable ruler 0302 are fixed by positioning pins A0306, B0307, ​​and C0308 and each group of positioning slots, which can control the parallelism tolerance of the displacement acquisition component assembly, reduce the deviation of displacement measurement data, and reduce the probability of component loosening caused by long-term reciprocating motion.

[0060] Among them, the upper and lower ends of the force sensor 0201 are assembled by a double fixing method of positioning pin 0203 and thread locking, which can stably transmit the entire rolling force and avoid force sensor 0201 being offset by force, causing distortion of force value acquisition.

[0061] The pressure roller unit 0100 has a built-in spring 0103 buffer structure to provide buffer margin under knife setting and sudden overload conditions. The spindle 0102 and the pressure roller 0101 have a 3-5mm movement gap to adapt to local thickness fluctuations of the tire blank and reduce rubber material damage and poor bonding.

[0062] Among them, the slide rail 0602 and the slider 0601 adopt the zero-gap pre-compression specification, which can offset the gap generated by the rolling lateral force. The multi-positioning hole and groove structure of the connecting seat 0801 can quickly complete the positioning and assembly of the whole machine on the molding host. The positioning pin assists in locking and improving the installation coaxiality.

[0063] Among them, the drag chain unit 0700 is equipped with multiple cable clamps 0704 to organize various motion sensor cables. High-flexibility cables are selected to adapt to the reciprocating linear motion of the mobile end 0701, which slows down the bending and aging of the cables. The separate wiring of the mobile end 0701 and the fixed end 0702 can reduce the tensile stress of the cables.

[0064] The following supplementary explanations are provided:

[0065] 1. Power Unit 0500 and Installation Method

[0066] The connection between the servo motor 0501 and the linear unit 0400 can be either parallel or linear.

[0067] The assembly structure of the motor with parallel mounting is as follows: Figure 4As shown: A synchronous pulley A0502 or gear A is mounted on the output shaft of servo motor 0501. Synchronous pulley B0503 or gear B is connected via synchronous belt 0506 or a gear pair. Synchronous pulley B0503 or gear B is mounted on lead screw 0402. If synchronous belt drive is used, a tensioning structure is required: servo motor 0501 is threaded onto motor mounting plate 0505 with an elongated hole. The position of servo motor 0501 is adjusted using tensioning bolt 0407 to tension synchronous belt 0506. After synchronous belt 0506 is tensioned, the anti-loosening nut 0408 is tightened. If gear drive is used, no tensioning structure is required.

[0068] The assembly structure of the motor with linear mounting is as follows: Figure 5 As shown: A coupling 0504 is installed on the output shaft of the servo motor 0501. The coupling 0504 is installed on the lead screw 0402. The shaft of the servo motor 0501 and the shaft of the lead screw 0402 are connected through the coupling 0504. No tensioning function is required.

[0069] 2. Linear unit 0400

[0070] The linear unit 0400 includes an outer cylinder body 0411, a lead screw 0402, a nut 0403, a piston 0404, a piston rod 0401, a connector 0405, a bearing seat 0409, a front flange 0410, a locking nut 0412, a guide sleeve 0406, an anti-reverse key 0413, a front limit switch 0415, and a rear limit switch 0414;

[0071] The lead screw 0402 is mounted between the bearing housing 0409 and the front flange 0410 via a bearing. The end of the lead screw 0402 is axially fixed and locked by a lock nut 0412. The lock nut 0412 has a threaded tightening structure to prevent loosening and detachment. Thread glue is also applied to the threaded part of the lead screw 0402 to further prevent loosening and detachment. The nut 0403 is threadedly engaged with the lead screw 0402 and is fixedly connected to the piston 0404. Thread glue is applied to the threaded part of the nut 0403 to prevent loosening and detachment. The piston 0404 is fixedly connected to the piston rod 0401. Thread glue is applied to the threaded part of the piston rod 0401 to prevent loosening and detachment. The front end of the piston rod 0401 is fixedly connected to the connector 0405.

[0072] Circumferential anti-rotation structure: Anti-reverse key 0413 is fixed on the keyway of piston 0404. Anti-reverse key 0413 is also embedded in the keyway of outer cylinder 0411, so that nut 0403, piston 0404 and piston rod 0401 cannot rotate in the circumferential direction, but can only reciprocate linearly in the axial direction.

[0073] Guiding and limiting structure: A guide sleeve 0406 is installed between the front flange 0410 and the piston 0404 to realize the guiding function of the linear unit 0400; a front limit 0415 is installed on the front flange 0410 to realize the front end limit of the linear unit 0400; a rear limit 0414 is installed on the bearing housing 0409 to realize the rear end limit of the linear unit 0400.

[0074] 3. Displacement Measurement and Control Unit 0300

[0075] The displacement measurement and control unit 0300 includes a fixed scale 0301, a movable scale 0302, a connecting block 0303, a fixed scale base A0304, a fixed scale base B0305, a positioning pin A0306, a positioning pin B0307, ​​and a positioning pin C0308.

[0076] The assembly requirements for fixed ruler 0301 and movable ruler 0302 are as follows: the parallelism tolerance between the fixed ruler datum and the guide rail is less than or equal to 0.1mm / 1000mm; for distances exceeding 1000mm, the parallelism tolerance is less than or equal to 0.2mm; the parallelism between the center lines of the ruler body and the movable ruler is less than 0.1mm; the distance between the two parallel planes of the fixed ruler and the movable ruler during their relative parallel movement is within the range of 3-3.3mm; the movable ruler's moving spindle is symmetrically centered within the slot of the fixed ruler, with equal distances on both sides and an error within 0.1mm.

[0077] Locking and anti-loosening limit structure for fixed and movable rulers: Fixed ruler 0301 is positioned by the positioning groove on fixed ruler seat A0304 and the positioning groove on fixed ruler seat B0305; fixed ruler seat A0304 and fixed ruler seat B0305 are positioned on bearing seat 0409 and front flange 0410 respectively by positioning pin A0306 and positioning pin B0307; fixed ruler 0301, fixed ruler seat A0304, and fixed ruler seat B0305 are fixed and locked on bearing seat 0409 and front flange 0410 by threaded connection with thread adhesive applied.

[0078] The movable ruler 0302 is positioned by the positioning groove on the connecting block 0303; the connecting block 0303 is positioned on the guide rail plate 0603 by the positioning pin C0308; the movable ruler 0302 is fixed and locked to the connecting block 0303 by a threaded connection with applied thread adhesive; the connecting block 0303 is fixed and locked to the guide rail plate 0603 by a threaded connection with applied thread adhesive.

[0079] Hardware acquisition of displacement signals: The control system receives real-time displacement values ​​by communicating with the displacement measurement and control unit 0300, and controls the displacement of servo motor 0501 and linear unit 0400 according to the received displacement values ​​to form a closed-loop control; In terms of PLC wiring, the moving scale 0302 signal line is connected to the high-speed port of the PLC or the high-speed port of the PLC expansion module.

[0080] 4. Force Measurement and Control Unit 0200

[0081] The force measurement and control unit 0200 includes a force sensor 0201, a connecting plate 0202, and a positioning pin 0203;

[0082] The force transmission path is: pressure roller unit 0100 - connecting plate 0202 - force sensor 0201 - connector 0405;

[0083] Positioning and locking structure of force sensor 0201: Both the top and bottom surfaces of force sensor 0201 are provided with pin holes. The top of force sensor 0201 is positioned by engaging the pin hole with the cylindrical feature at the front end of connector 0405, and the bottom is positioned by engaging the pin hole with positioning pin 0203. Positioning pin 0203 is positioned by engaging the pin hole with connecting plate 0202. Both the top and bottom surfaces of force sensor 0201 are provided with threaded holes. The top is fixed and locked to connector 0405 by threaded connection, and the bottom is fixed and locked to connecting plate 0202 by threaded connection.

[0084] Hardware acquisition of force signals: When the force sensor 0201 is subjected to external force, the internal strain gauge deforms. The transmitter converts the deformation into an electrical signal, which is then processed internally and converted into the corresponding force value. The control system receives the real-time force value by communicating with the transmitter and controls the displacement of the servo motor 0501 and the linear unit 0400 according to the received force value, thereby changing the magnitude of the force and forming a closed-loop control. For PLC wiring, the transmitter instrument signal line of the force sensor 0201 is connected to the high-speed port of the PLC or the high-speed port of the PLC expansion module.

[0085] 5. Pressure Roller Unit 0100

[0086] The pressure roller unit 0100 includes a pressure roller plate 0101, a spindle 0102, a spring 0103, and a baffle 0104. The pressure roller plate 0101 is fixed on the spindle 0102, and the two ends of the spindle 0102 are connected to the baffle 0104. The baffle 0104 is connected to the connecting plate 0202. The two ends of the spindle 0102 are machined with threaded holes, which are fixed and locked to the holes on the connecting plate 0202 through the threaded holes. This assembly structure can be adapted to various types of pressure roller units, such as threaded fixed pressure rollers, built-in spring type rollers, and pneumatic piston type pressure rollers.

[0087] The number of pressure rollers 0101 can be set to one or more pieces, and the material can be engineering plastic or metal;

[0088] The preload of spring 0103 is achieved by compressing the selected spring 0103 by a certain length. The compression amount of the selected spring 0103 is the difference between the free length of spring 0103 and the distance from the bottom surface of the mandrel 0102 to the bottom surface of the hole in the pressure roller 0101. At this time, the top surface of the mandrel 0102 coincides with the top surface of the pressure roller 0101. The height distance between the top surface and the bottom surface of the mandrel 0102 is 3mm-5mm smaller than the distance between the top surface and the bottom surface of the hole in the pressure roller 0101. When the load force exceeds the preload of spring 0103, the pressure roller 0101 can move upward by a distance of 3mm-5mm.

[0089] 6. Guide Unit 0600

[0090] The guide unit 0600 consists of a slide rail 0602, a slider 0601, and a guide plate 0603. The slide rail 0602 is positioned by the positioning groove on the bearing seat 0409 and the positioning groove on the front flange 0410, and is fixed and locked by the threads on the bearing seat 0409, the threads on the outer cylinder 0411, and the threads on the front flange 0410. The slider 0601 is positioned by the positioning groove on the guide plate 0603, and is fixed and locked by the holes on the guide plate 0603 and the threaded holes on the slider 0601. The slide rail 0602 and the slider 0601 are of the zero-clearance preload type.

[0091] The torsion generated by the lateral force of the rubber material during rolling is protected and decomposed by slide rail 0602 and slider 0601;

[0092] 7. Cable chain unit 0700

[0093] The cable chain unit 0700 consists of a moving end 0701, a fixed end 0702, a cable chain body 0703, and a cable clamp 0704.

[0094] Cable and sensor cable routing: The moving scale 0302 cable enters from the moving end 0701 of the cable chain via the fixed clamp 0704 on the guide plate 0603 and the fixed clamp 0704 on the moving end 0701, and exits from the fixed end 0702 of the cable chain, converging into the equipment cable tray; the force sensor 0201 cable enters from the moving end 0701 of the cable chain via the fixed clamp 0704 on the connecting plate 0202 and the fixed clamp 0704 on the moving end 0701, and exits from the fixed end 0702 of the cable chain, converging into the equipment cable tray; fixed cables such as the servo motor 0501 cable are directly converging into the equipment cable tray; highly flexible cables are used inside the moving cable chain.

[0095] 8. Install interface unit 0800

[0096] The mounting interface unit 0800 includes a connector 0801 and a key bar 0802, which are used to fix the intelligent servo pressure roller to the customer equipment.

[0097] Connector 0801 is positioned on outer cylinder 0411 through outer cylinder positioning slot and positioning key strip hole, and is fixed and locked by threaded adhesive through outer cylinder connecting hole; connector 0801 is positioned on the equipment through positioning pin hole one and positioning pin hole two, and is fixed and locked by equipment connecting hole.

[0098] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent servo pressure roller, characterized in that, It includes a pressure roller unit (0100), a force measurement and control unit (0200), a displacement measurement and control unit (0300), a linear unit (0400), a power unit (0500), a guide unit (0600), a cable chain unit (0700), and an installation interface unit (0800). The power unit (0500) is connected to the linear unit (0400) via a transmission; the front end of the linear unit (0400) is connected to the force measurement and control unit (0200); the front end of the force measurement and control unit (0200) is connected to the pressure roller unit (0100); the displacement measurement and control unit (0300) is connected to both the linear unit (0400) and the guide unit (0600); the guide unit (0600) is located on the side of the linear unit (0400); the cable chain unit (0700) is arranged corresponding to the guide unit (0600); the mounting interface unit (0800) is located at the rear of the linear unit (0400). The power unit (0500) includes a servo motor (0501); when the servo motor (0501) is installed in parallel, the output shaft of the servo motor (0501) is fixed with a synchronous pulley A (0502), and the end of the lead screw (0402) of the linear unit (0400) is fixed with a synchronous pulley B (0503); a synchronous belt (0506) is wound between the synchronous pulley A (0502) and the synchronous pulley B (0503); the servo motor (0500) includes a servo motor (0501); when the servo motor (0501) is installed in parallel, the output shaft of the servo motor (0501) is fixed with a synchronous pulley A (0502), and the output shaft of the servo motor (0501) is fixed with a synchronous pulley B (0503); the output shaft of the servo motor (0501) is fixed with a synchronous pulley B (0503); the output shaft of the linear unit (0501) is fixed with a synchronous pulley B (0503), and the output shaft of the linear unit (0400) is fixed with a synchronous pulley B (0503); the output shaft of the linear unit (0501) is fixed with a synchronous pulley B (0502), and the output shaft of the linear unit (0501 ... 01) Fixed to the motor mounting plate (0505); the motor mounting plate (0505) is provided with an elongated hole; a tensioning bolt (0407) is passed through the elongated hole and the servo motor (0501); an anti-loosening nut (0408) is threadedly connected to the tensioning bolt (0407); when the servo motor (0501) is installed in a linear configuration, the output shaft of the servo motor (0501) is coaxially connected to the lead screw (0402) through a coupling (0504).

2. The intelligent servo pressure roller according to claim 1, characterized in that, The linear unit (0400) includes an outer cylinder (0411), a nut (0403), a piston (0404), a piston rod (0401), a connector (0405), a bearing housing (0409), a front flange (0410), a locking nut (0412), and a guide sleeve (0406); the lead screw (0402) is mounted between the bearing housing (0409) and the front flange (0410) via a bearing; the locking nut (0412) is threaded to the end of the lead screw (0402); the nut (0403) is threaded to the lead screw (0402); the nut (0403) is threaded to the piston (0404); the nut (0403) is threaded to the piston (0405). 0404) Fixed connection; the piston (0404) is fixedly connected to the piston rod (0401); the front end of the piston rod (0401) is fixedly connected to the connector (0405); an anti-reverse key (0413) is fixed on the side of the piston (0404); the anti-reverse key (0413) is embedded in the keyway of the inner wall of the outer cylinder (0411); the guide sleeve (0406) is disposed between the front flange (0410) and the piston (0404); a front limit (0415) is fixed on the inner side of the front flange (0410); a rear limit (0414) is fixed on the inner side of the bearing seat (0409).

3. The intelligent servo pressure roller according to claim 2, characterized in that, The displacement measurement and control unit (0300) includes a fixed scale (0301), a movable scale (0302), a connecting block (0303), a fixed scale base A (0304), a fixed scale base B (0305), a positioning pin A (0306), a positioning pin B (0307), and a positioning pin C (0308); the fixed scale (0301) is engaged in the positioning grooves of the fixed scale base A (0304) and the fixed scale base B (0305); the fixed scale base A (0306) is engaged in the positioning grooves of the fixed scale base A (0304) and the fixed scale base B (0305); the fixed scale base A (0306) is engaged in the positioning grooves of the fixed scale base B (0305). 304) The positioning pin A (0306) is positioned on the bearing seat (0409); the fixed length seat B (0305) is positioned on the front flange (0410) by the positioning pin B (0307); the movable ruler (0302) is engaged in the positioning groove of the connecting block (0303); the connecting block (0303) is positioned on the guide rail plate (0603) of the guide unit (0600) by the positioning pin C (0308).

4. The intelligent servo pressure roller according to claim 2, characterized in that, The force measurement and control unit (0200) includes a force sensor (0201), a connecting plate (0202), and a positioning pin (0203); the top of the force sensor (0201) is fixedly connected to the connector (0405); the bottom of the force sensor (0201) is fixedly connected to the connecting plate (0202); the positioning pin (0203) passes through the bottom pin hole of the force sensor (0201) and the pin hole of the connecting plate (0202); the connecting plate (0202) is fixedly connected to the pressure roller unit (0100).

5. The intelligent servo pressure roller according to claim 1, characterized in that, The pressure roller unit (0100) includes a pressure roller plate (0101), a mandrel (0102), a spring (0103), and baffles (0104); the pressure roller plate (0101) is sleeved on the outside of the mandrel (0102); the spring (0103) is disposed between the inner end face of the pressure roller plate (0101) and the end face of the mandrel (0102); the two ends of the mandrel (0102) are respectively fixedly connected to the two baffles (0104).

6. The intelligent servo pressure roller according to claim 5, characterized in that, The height from the top surface to the bottom surface of the mandrel (0102) is less than the height from the top surface to the bottom surface of the inner hole of the pressure roller (0101).

7. The intelligent servo pressure roller according to claim 2, characterized in that, The guide unit (0600) includes a slide rail (0602), a slider (0601), and a guide plate (0603); the slide rail (0602) is fixed to the side of the outer cylinder (0411); the slider (0601) is slidably engaged with the slide rail (0602); and the slider (0601) is fixedly connected to the guide plate (0603).

8. The intelligent servo pressure roller according to claim 2, characterized in that, The installation interface unit (0800) includes a connector (0801), a key bar (0802), an outer cylinder body connecting hole (0901), an outer cylinder body positioning slot (0902), a positioning pin hole one (0903), a positioning key bar hole (0904), a positioning pin hole two (0905), and a device connecting hole (0906); the outer cylinder body positioning slot (0902) and the positioning key bar hole (0904) are both opened on the end face of the connector (0801) facing the outer cylinder body (0411); the outer cylinder body positioning slot (0902) is engaged with the end of the outer cylinder body (0411); the positioning key bar hole (0904)... The connector is inserted into the key bar (0802); the outer cylinder body connecting hole (0901) is opened through the connector (0801); the threaded connector is inserted through the outer cylinder body connecting hole (0901) and is connected and fixed to the outer cylinder body (0411); the first positioning pin hole (0903), the second positioning pin hole (0905) and the equipment connecting hole (0906) are all opened on the side end face of the connector (0801) away from the outer cylinder body (0411); the positioning pins are respectively inserted through the first positioning pin hole (0903) and the second positioning pin hole (0905); the threaded connector is inserted through the equipment connecting hole (0906).

9. The intelligent servo pressure roller according to claim 7, characterized in that, The cable chain unit (0700) includes a moving end (0701), a fixed end (0702), a cable chain body (0703), and a cable clamp (0704); the moving end (0701) is fixedly connected to the guide rail plate (0603); the fixed end (0702) is fixedly connected to the outer cylinder body (0411); and the cable clamp (0704) is respectively disposed on the guide rail plate (0603) and the moving end (0701).

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