Tire loading and unloading control system for a tire curing press

Abstract

The utility model relates to a kind of tyre vulcanizing machine tire loading and unloading control system, it is related to tire vulcanization technical field, it includes: tire clamp jaw, axis vertical and the rotating servo motor of connecting tire clamp jaw, output end is connected with the linear module of rotating servo motor, the lifting servo motor connected with linear module, two lifting proximity switches, two rotary proximity switches, control unit;Control unit includes the I / O module of signal connection two lifting proximity switches and two rotary proximity switches, lifting servo driver electrically connected lifting servo motor, rotating servo driver electrically connected rotating servo motor, signal connection I / O module, rotating servo driver, lifting servo driver and the programmable logic controller of tire clamp jaw, electrically connected programmable logic controller's grab and release switch, lifting switch and rotary switch.The utility model improves the position accuracy of tire clamp jaw, reduces the possibility of embryo and vulcanization mould hard collision, protects embryo and vulcanization mould.

Description

Technical Field

[0001] This utility model relates to the field of tire vulcanization technology, and in particular to a tire loading and unloading control system for a tire vulcanizing machine. Background Technology

[0002] Vulcanization is a process that uses a vulcanizing mold to pressurize rubber compounds and transform them into elastic or tough rubber products. Its core lies in the cross-linking reaction of linear polymers during vulcanization, forming a network structure to enhance strength and elasticity. It is an essential process in tire manufacturing.

[0003] In existing tire vulcanizing machines, the robotic arm of the tire loading and unloading device grips the tire and uses a combination of hydraulic and pneumatic cylinders to control the lifting and horizontal movement of the robotic arm, thereby moving the tire in and out of the vulcanizing mold. However, the positional accuracy of the hydraulic and pneumatic cylinders is poor, which is not conducive to the operator's fine adjustment of the tire blank position and may cause the tire blank to collide hard with the vulcanizing mold, damaging both the tire blank and the vulcanizing mold. Utility Model Content

[0004] To address the shortcomings of related technologies, this utility model provides a tire loading and unloading control system for a tire vulcanizing machine. It uses a linear module with high positioning accuracy, a lifting servo motor, and a rotary servo motor to drive the tire gripper to lift or rotate, thereby moving the tire into and out of the vulcanizing mold. This reduces the possibility of hard collisions between the tire blank and the vulcanizing mold, protecting both the tire blank and the vulcanizing mold.

[0005] This utility model provides a tire loading and unloading control system for a tire vulcanizing machine, including: a tire gripper, a rotary servo motor with a vertical axis connected to the tire gripper, a linear module with its output end connected to the rotary servo motor, a lifting servo motor connected to the lead screw in the linear module, two lifting proximity switches located at both ends of the longitudinal stroke of the tire gripper, two rotary proximity switches located at both ends of the rotational stroke of the tire gripper, and a control unit. The control unit includes an I / O module that is signal-connected to two lifting proximity switches and two rotary proximity switches, a lifting servo driver that is electrically connected to a lifting servo motor, a rotary servo driver that is electrically connected to a rotary servo motor, a programmable logic controller that is signal-connected to the I / O module, the rotary servo driver, the lifting servo driver and the tire gripper, and a gripping switch, a lifting switch and a rotary switch that are electrically connected to the programmable logic controller.

[0006] In some embodiments, the control unit also includes a seeker switch that is signal-connected to the programmable logic controller.

[0007] In some embodiments, a pressure sensor with a signal connection I / O module is mounted on the tire gripper; the control unit also includes a mode switching switch with interlocked automatic and manual contacts connected to the programmable logic controller; when the automatic contact is closed, the programmable logic controller disconnects the electrical connection with the origin-finding switch, gripping switch, lifting switch, and rotary switch; when the manual contact is closed, the programmable logic controller maintains the electrical connection with the origin-finding switch, gripping switch, lifting switch, and rotary switch.

[0008] In some embodiments, the control unit also includes a remote EtherCAT splitter, and the I / O module, tire gripper, lifting servo drive and rotary servo drive are all electrically connected to the remote EtherCAT splitter, which is electrically connected to the programmable logic controller.

[0009] In some embodiments, the tire gripper includes a mounting base connected to a rotary servo motor, a plurality of electrically controlled telescopic devices mounted on the mounting base, all of which are distributed about a vertical axis and extend horizontally; all of which are electrically connected to a remote EtherCAT splitter.

[0010] In some embodiments, the electrically controlled telescopic device includes a cylinder and an electrically controlled valve disposed in the cylinder's air path, the electrically controlled valve being electrically connected to a remote EtherCAT splitter.

[0011] In some embodiments, both the lifting servo motor and the rotary servo motor have a brake structure.

[0012] In some embodiments, the control unit also includes a touchscreen that is signal-connected to the programmable logic controller.

[0013] In some embodiments, the control unit further includes an Ethernet switch, the touchscreen is electrically connected to the Ethernet switch, and the Ethernet switch is electrically connected to the programmable logic controller.

[0014] In some embodiments, both the lifting switch and the rotary switch are self-resetting switches.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The tire grippers are driven by linear modules, lifting servo motors, and rotary servo motors to lift or rotate, moving the tire in and out of the vulcanizing mold. The linear modules, lifting servo motors, and rotary servo motors have high positional accuracy, which can reduce the possibility of hard collisions between the tire blank and the vulcanizing mold, protecting both the tire blank and the vulcanizing mold.

[0016] 2. A remote EtherCAT brancher is used to establish a data transmission channel between the programmable logic controller and the lifting servo motor, rotary servo motor, tire gripper, lifting proximity switch, and rotary proximity switch, thereby improving the signal transmission efficiency and the action sensitivity of the tire loading and unloading control system for the tire vulcanizing machine.

[0017] 3. Set the lifting and rotating switches used in manual control mode as self-resetting switches to reduce the possibility of the lifting servo motor and rotating servo motor being accidentally started. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the tire loading and unloading control system for a tire vulcanizing machine in this utility model; Figure 2 This is a schematic diagram illustrating the lifting proximity switch and the first bracket in this utility model; Figure 3 This is a schematic diagram illustrating the metal structure in this utility model.

[0019] In the diagram: 11. Mounting base; 12. Electric control valve; 13. Cylinder; 2. Rotary servo motor; 3. Linear module; 4. Lifting servo motor; 5. Lifting proximity switch; 6. Rotary proximity switch; 71. I / O module; 72. Lifting servo driver; 73. Rotary servo driver; 74. Programmable logic controller; 75. Grab and release switch; 76. Lifting switch; 77. Rotary switch; 78. Origin-finding switch; 79. Mode switching switch; 710. Remote EtherCAT splitter; 711. Touch screen; 712. Ethernet switch; 8. Pressure sensor; 91. First bracket; 911. First strip hole; 92. Bolt; 93. First nut; 94. Metal structure; 10. Cabinet. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 1-3 As shown in the schematic embodiment of the tire loading and unloading control system for a tire vulcanizing machine of this utility model, the tire loading and unloading control system includes at least: a tire gripper, a rotary servo motor 2 with its axis vertically aligned and connected to the tire gripper, a linear module 3 vertically arranged and with its output end connected to the rotary servo motor 2, a lifting servo motor 4 connected to a lead screw in the linear module 3, two lifting proximity switches 5 located at both ends of the longitudinal stroke of the tire gripper, two rotary proximity switches 6 located at both ends of the rotational stroke of the tire gripper, and a control unit; the linear module 3 includes a bracket with a slide rail, a lead screw rotatably connected to the bracket at both ends, and a slide table that slides with the slide rail and is threadedly engaged with the lead screw. The lead screw is connected to the lifting servo motor 4, and the slide table serves as the output end of the linear module 3 and is connected to the rotary servo motor 2. The lifting proximity switches 5 and the rotary proximity switches 6 detect whether the tire gripper is nearby based on the principle of electromagnetic induction.

[0025] The control unit includes an I / O module 71 signal-connected to two lifting proximity switches 5 and two rotary proximity switches 6; a lifting servo driver 72 electrically connected to the lifting servo motor 4; a rotary servo driver 73 electrically connected to the rotary servo motor 2; a programmable logic controller 74 signal-connected to the I / O module 71, the rotary servo driver 73, the lifting servo driver 72, and the tire gripper; and a gripping / releasing switch 75, a lifting switch 76, and a rotary switch 77 electrically connected to the programmable logic controller 74. When the lifting switch 76 is triggered, the programmable logic controller 74 controls the lifting servo motor 4 to rotate forward or reverse. When the lifting proximity switch 5 sends a signal, the programmable logic controller 74 controls the lifting servo motor 4 to stop. When the rotary switch 77 is triggered, the programmable logic controller 74 controls the rotary servo motor 2 to rotate forward or reverse. When the rotary proximity switch 6 sends a signal, the programmable logic controller 74 controls the rotary servo motor 2 to stop.

[0026] In the tire loading and unloading control system of this tire vulcanizing machine, a linear module 3, a lifting servo motor 4, and a rotary servo motor 2 are used to drive the tire grippers to lift or rotate, thus moving the tire into and out of the vulcanizing mold. The linear module 3, the lifting servo motor 4, and the rotary servo motor 2 have high positional accuracy, which can reduce the possibility of hard collisions between the tire blank and the vulcanizing mold, protecting both the tire blank and the vulcanizing mold.

[0027] In some embodiments, the control unit also includes a home-finding switch 78 that is signal-connected to the programmable logic controller 74. When the home-finding switch 78 is triggered, the programmable logic controller 74 controls the lifting servo motor 4 and the rotary servo motor 2 to operate until the tire gripper returns to its initial position.

[0028] In some embodiments, a pressure sensor 8 is mounted on the tire gripper with a signal connection I / O module 71; the control unit also includes a mode switching switch 79 connected to a programmable logic controller 74, the mode switching switch 79 having interlocked automatic and manual contacts; when the automatic contact is closed, the programmable logic controller 74 disconnects the electrical connection with the origin-finding switch 78, the gripping and releasing switch 75, the lifting switch 76, and the rotary switch 77; when the manual contact is closed, the programmable logic controller 74 maintains the electrical connection with the origin-finding switch 78, the gripping and releasing switch 75, the lifting switch 76, and the rotary switch 77.

[0029] After the manual contact of mode switch 79 is closed, programmable logic controller (PLC) 74 switches to manual mode. PLC 74 controls the operation of lifting servo motor 4 and rotary servo motor 2 based on signals from origin-finding switch 78, lifting switch 76, and rotary switch 77. During this process, when lifting proximity switch 5 sends a signal, PLC 74 stops lifting servo motor 4. When rotary proximity switch 6 sends a signal, PLC 74 stops rotary servo motor 2. PLC 74 controls the opening and closing of the tire gripper based on signals from gripper-release switch 75.

[0030] After the automatic contact of the mode switching switch 79 closes, the programmable logic controller 74 switches to automatic mode. Based on the internal program, the signals from the lifting proximity switch 5, the rotary proximity switch 6, and the pressure sensor 8, the programmable logic controller 74 controls the lifting servo motor 4, the rotary servo motor 2, and the tire gripper to complete the movement of the tire entering and exiting the vulcanizing mold.

[0031] In some embodiments, the control unit further includes a remote EtherCAT splitter 710. The I / O module 71, tire gripper, lifting servo drive 72, and rotary servo drive 73 are all electrically connected to the remote EtherCAT splitter 710, which is electrically connected to the programmable logic controller 74. The remote EtherCAT splitter 710 improves the signal transmission efficiency and operational sensitivity of the tire loading and unloading control system for tire vulcanizing machines.

[0032] In some embodiments, the tire gripper includes a mounting base 11 connected to a rotary servo motor 2, and a plurality of electrically controlled telescopic devices mounted on the mounting base 11, all of which are distributed about a vertical axis and extend horizontally; all of the electrically controlled telescopic devices are electrically connected to a remote EtherCAT splitter 710. When the electrically controlled telescopic device extends, the tire gripper hooks onto the inner edge of the tire. When the electrically controlled telescopic device retracts, the tire gripper disengages from the tire.

[0033] In some embodiments, the electrically controlled telescopic device includes a cylinder 13 and an electrically controlled valve 12 disposed in the air circuit of the cylinder 13. The structure is simple and lightweight, and the electrically controlled valve 12 is electrically connected to the remote EtherCAT splitter 710.

[0034] In some embodiments, both the lifting servo motor 4 and the rotary servo motor 2 have a brake structure that acts directly on the motor shaft to ensure that the motor remains stationary when not in operation. The brake structure brakes the motor shaft based on electromagnetic force or spring force.

[0035] In some embodiments, the control unit also includes a touch screen 711 that is signal-connected to the programmable logic controller 74, so that the operator can monitor the operating status of the tire loading and unloading control system for the tire vulcanizing machine in real time through the touch screen 711, or directly modify the parameters in the programmable logic controller 74, such as the speed of the lifting servo motor 4, the speed of the rotary servo motor 2, etc.

[0036] In some embodiments, the control unit further includes an Ethernet switch 712, the touch screen 711 is electrically connected to the Ethernet switch 712, and the Ethernet switch 712 is electrically connected to the programmable logic controller 74, so as to improve the data interaction speed between the touch screen 711 and the programmable logic controller 74, and improve the response speed of the lifting servo motor 4, the rotary servo motor 2, and the tire gripper to the signals of the touch screen 711.

[0037] In some embodiments, both the lifting switch 76 and the rotary switch 77 are self-resetting switches. When the programmable logic controller 74 switches to manual mode: when the lifting switch 76 is manually triggered, the lifting servo motor 4 operates; when the lifting switch 76 is not touched, it automatically resets and remains open, and the lifting servo motor 4 stops. When the rotary switch 77 is manually triggered, the rotary servo motor 2 operates; when the rotary switch 77 is not touched, it automatically resets and remains open, and the rotary servo motor 2 stops. Since both the lifting switch 76 and the rotary switch 77 are self-resetting switches, the possibility of the lifting servo motor 4 and the rotary servo motor 2 being accidentally started is reduced.

[0038] Furthermore, the mode switching switch 79, the lifting switch 76, and the rotary switch 77 are all rotary switches 77, which further reduces the accidental activation of the mode switching switch 79, the lifting switch 76, and the rotary switch 77 due to external vibration. The self-resetting rotary switch 77 is prior art, referring to the self-resetting rotary switch 77 operating device disclosed in CN217822514U.

[0039] In some embodiments, the tire loading and unloading control system for the tire vulcanizing machine further includes two first supports 91 and two second supports that are detachably connected to the tire vulcanizing machine, two lifting proximity switches 5 that are detachably connected to the two first supports 91, and two rotary proximity switches 6 that are detachably connected to the two second supports.

[0040] Furthermore, the first bracket 91 is a metal plate bent at a right angle. One plate surface is detachably connected to the lifting proximity switch 5, and the other plate surface is provided with two first strip holes 911 perpendicular to the intersection of the two plate surfaces. Two bolts 92 pass through the two first strip holes 911 and are connected to the tire vulcanizing machine to reduce the installation accuracy requirements of the first bracket 91 and reduce the installation difficulty of the first bracket 91.

[0041] The second bracket is a metal plate bent at a right angle. One plate surface is detachably connected to the rotary proximity switch 6, and the other plate surface is provided with two second strip-shaped holes perpendicular to the intersection of the two plate surfaces. Two bolts 92 pass through the two second strip-shaped holes and are connected to the tire vulcanizing machine to reduce the installation accuracy requirements of the second bracket and reduce the installation difficulty of the second bracket.

[0042] Furthermore, the lifting proximity switch 5 passes through the first bracket 91 and is connected to two first nuts 93, with the first bracket 91 sandwiched between the two first nuts 93. The position of the first nuts 93 on the lifting proximity switch 5 can be adjusted along the axial direction of the lifting proximity switch 5 to reduce the installation accuracy requirements of the lifting proximity switch 5 and reduce the installation difficulty of the lifting proximity switch 5.

[0043] The rotary proximity switch 6 passes through the second bracket and connects to two second nuts, with the second bracket clamped between the two second nuts. The position of the second nuts on the rotary proximity switch 6 can be adjusted along the axis of the rotary proximity switch 6 to reduce the installation accuracy requirements and installation difficulty of the rotary proximity switch 6.

[0044] The first support 91 and the second support have the same shape.

[0045] Furthermore, a metal structure 94, which serves as the detection target of the lifting proximity switch 5 and / or the rotary proximity switch 6, is detachably connected to the tire gripper to improve the detection sensitivity of the lifting proximity switch 5 and the rotary proximity switch 6. When the tire gripper is not additionally equipped with the metal structure 94, which serves as the detection target of the lifting proximity switch 5 and / or the rotary proximity switch 6, the lifting proximity switch 5 and the rotary proximity switch 6 can directly detect the tire gripper.

[0046] Furthermore, the metal structure 94 is a metal plate bent at right angles. Multiple bolts 92 pass through one surface of the metal structure 94 and are then connected to the tire vulcanizing machine. The surface of the metal structure 94 that is not penetrated by the bolts 92 is the detection object of the lifting proximity switch 5 and / or the rotary proximity switch 6.

[0047] In some embodiments, the tire loading and unloading control system for a tire vulcanizing machine also includes a cabinet 10. All control units are installed in the cabinet 10, with the connection points between two components within the control unit located inside the cabinet 10 to protect the reliability and stability of the electrical connections between components within the control unit. The touchscreen 711, origin-finding switch 78, gripping switch 75, lifting switch 76, and rotary switch 77 pass through the side wall of the cabinet 10 for operator access. The side wall of the cabinet 10 has openings to expose the interfaces of the I / O module 71, lifting servo driver 72, and rotary servo driver 73, facilitating connection to other structures within the tire loading and unloading control system for the tire vulcanizing machine.

[0048] Through the description of several embodiments of the tire loading and unloading control system for the tire vulcanizing machine of this utility model, it can be seen that the embodiments of the tire loading and unloading control system for the tire vulcanizing machine of this utility model have at least one or more of the following advantages: 1. The tire grippers are driven by linear modules, lifting servo motors, and rotary servo motors to lift or rotate, moving the tire in and out of the vulcanizing mold. The linear modules, lifting servo motors, and rotary servo motors have high positional accuracy, which can reduce the possibility of hard collisions between the tire blank and the vulcanizing mold, protecting both the tire blank and the vulcanizing mold.

[0049] 2. A remote EtherCAT brancher is used to establish a data transmission channel between the programmable logic controller and the lifting servo motor, rotary servo motor, tire gripper, lifting proximity switch, and rotary proximity switch, thereby improving the signal transmission efficiency and the action sensitivity of the tire loading and unloading control system for the tire vulcanizing machine.

[0050] 3. Set the lifting and rotating switches used in manual control mode as self-resetting switches to reduce the possibility of the lifting servo motor and rotating servo motor being accidentally started.

[0051] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0052] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A tire loading and unloading control system for a tire vulcanizing machine, characterized in that, include: The system includes a tire gripper, a vertically oriented rotary servo motor connected to the tire gripper, a vertically oriented linear module whose output is connected to the rotary servo motor, a lifting servo motor connected to the lead screw in the linear module, two lifting proximity switches located at both ends of the longitudinal stroke of the tire gripper, two rotary proximity switches located at both ends of the rotational stroke of the tire gripper, and a control unit. The control unit includes an I / O module that is signal-connected to two lifting proximity switches and two rotary proximity switches, a lifting servo driver that is electrically connected to a lifting servo motor, a rotary servo driver that is electrically connected to a rotary servo motor, a programmable logic controller that is signal-connected to the I / O module, the rotary servo driver, the lifting servo driver and the tire gripper, and a gripping switch, a lifting switch and a rotary switch that are electrically connected to the programmable logic controller.

2. The tire loading and unloading control system for a tire vulcanizing machine according to claim 1, characterized in that, The control unit also includes a origin-finding switch that is connected to the programmable logic controller.

3. The tire loading and unloading control system for a tire vulcanizing machine according to claim 2, characterized in that, The tire gripper is equipped with a pressure sensor that connects to the signal I / O module; the control unit also includes a mode switching switch that is connected to the programmable logic controller (PLC). The mode switching switch has interlocked automatic and manual contacts; when the automatic contact is closed, the PLC disconnects the electrical connection with the origin-finding switch, gripping switch, lifting switch, and rotary switch; when the manual contact is closed, the PLC maintains the electrical connection with the origin-finding switch, gripping switch, lifting switch, and rotary switch.

4. The tire loading and unloading control system for a tire vulcanizing machine according to claim 1, characterized in that, The control unit also includes a remote EtherCAT splitter. The I / O module, tire gripper, lifting servo drive and rotary servo drive are all electrically connected to the remote EtherCAT splitter. The remote EtherCAT splitter is electrically connected to the programmable logic controller.

5. The tire loading and unloading control system for a tire vulcanizing machine according to claim 4, characterized in that, The tire gripper includes a mounting base connected to a rotary servo motor, multiple electrically controlled telescopic devices mounted on the mounting base, all of which are distributed around a vertical axis and extend horizontally; all of the electrically controlled telescopic devices are electrically connected to a remote EtherCAT splitter.

6. The tire loading and unloading control system for a tire vulcanizing machine according to claim 5, characterized in that, The electrically controlled telescopic device includes a cylinder and an electrically controlled valve installed in the cylinder's air circuit. The electrically controlled valve is electrically connected to a remote EtherCAT splitter.

7. The tire loading and unloading control system for a tire vulcanizing machine according to any one of claims 1-6, characterized in that, Both the lifting servo motor and the rotary servo motor have a brake structure.

8. The tire loading and unloading control system for a tire vulcanizing machine according to any one of claims 1-6, characterized in that, The control unit also includes a touchscreen that is connected to the programmable logic controller.

9. The tire loading and unloading control system for a tire vulcanizing machine according to claim 8, characterized in that, The control unit also includes an Ethernet switch, the touch screen is electrically connected to the Ethernet switch, and the Ethernet switch is electrically connected to the programmable logic controller.

10. The tire loading and unloading control system for a tire vulcanizing machine according to any one of claims 1-6, characterized in that, Both the lifting switch and the rotary switch are self-resetting switches.

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