Tread picking transmission mechanism of engineering tire forming machine

Abstract

The invention relates to a tread pickup transmission mechanism of an engineering tire forming machine, and the transmission mechanism comprises a synchronous belt transmission assembly which comprises a driving wheel, a driven wheel and a synchronous transmission belt connected with the driving wheel and the driven wheel, and the driving wheel is configured to be connected with a driving motor; the transmission shaft is coaxially connected with the driven wheel and is configured to output the rotation driving force output by the synchronous belt transmission assembly outwards; and the friction braking assembly comprises a friction disc fixedly connected with the driven wheel and a clamping jaw unit located beside the friction disc, and the clamping jaw unit can clamp the friction disc when the driving motor stops running, so that the transmission shaft is kept fixed. Compared with the prior art, stable braking of the lifting lead screw in the tread picking device of the engineering tire forming machine can be effectively achieved, the failure rate is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of engineering tire tread lifting equipment, and relates to a tire tread picking and transmission mechanism for an engineering tire forming machine. Background Technology

[0002] When producing engineering tires of 14.00R25, 16.00R25, or even larger specifications, the weight of a single tire tread can reach 60-80 kg. Manual handling is difficult and poses safety risks. To reduce labor intensity, mechanical lifting devices are generally used to lift the tire treads. After lifting, a backstop is used to brake the lifting screw to prevent the picking device from falling. However, during operation, due to frequent starts, the backstop is prone to failure, requiring frequent replacement and maintenance, severely impacting production efficiency. For example, lifting devices disclosed in CN104961070A and CN111942087A, while capable of labor-saving lifting operations for heavy objects such as tires, similarly suffer from relatively complex structures due to backstop limitations, making them unsuitable for transporting heavy-duty products. Summary of the Invention

[0003] The purpose of this invention is to provide a tire tread picking transmission mechanism for an engineering tire forming machine, which can effectively achieve stable braking of the lifting screw in the tire tread picking device of the engineering tire forming machine, reduce the failure rate, and improve production efficiency.

[0004] The objective of this invention can be achieved through the following technical solutions: In a first aspect, a tread picking transmission mechanism for an engineering tire forming machine is used for lifting and transporting the engineering tire tread after picking it up, comprising: A synchronous belt drive assembly includes a driving pulley, a driven pulley, and a synchronous drive belt connecting the driving pulley and the driven pulley, wherein the driving pulley is configured to connect to a drive motor; A drive shaft is coaxially connected to the driven pulley and is configured to output the rotational driving force output by the synchronous belt drive assembly outward; The friction braking assembly includes a friction disc fixedly connected to the driven wheel, and a gripper unit located next to the friction disc. The gripper unit can clamp the friction disc when the drive motor stops running, so that the drive shaft remains fixed.

[0005] Furthermore, the friction disc and the driven wheel are fixedly connected by bolts.

[0006] Furthermore, the upper and lower ends of the drive shaft are provided with bearings for rotatable installation.

[0007] Furthermore, the gripper unit includes a pneumatic gripper, a solenoid valve, and pneumatic components. The solenoid valve is also connected to a controller and adjusts the opening and closing of the pneumatic gripper based on the execution signal issued by the controller.

[0008] Furthermore, the opening and closing state of the pneumatic gripper satisfies the following: when the drive motor is turned on, the controller sends an execution signal to the solenoid valve, the solenoid valve is energized, causing the pneumatic gripper to open with air and disengage from the friction disc; When the drive motor is turned off, the controller sends an execution signal to the solenoid valve, the solenoid valve is de-energized, causing the pneumatic gripper to close and clamp the friction disc.

[0009] Furthermore, the pneumatic gripper is also provided with a friction plate at the part that contacts the friction disc.

[0010] Furthermore, the drive wheel is coaxially connected to the drive motor.

[0011] In a second aspect, the present invention provides a tread pickup device for an engineering tire forming machine, comprising: The transmission mechanism described in the first aspect above is used to output rotational driving force; A lead screw lifting mechanism is configured to receive the rotational driving force output by the transmission mechanism and convert it into vertical lifting motion to carry the picked-up tire tread up and down.

[0012] Furthermore, the lead screw lifting mechanism includes a lifting lead screw, a lifting slider threadedly engaged with the lifting lead screw, and a lifting platform fixedly connected to the lifting slider. The lifting lead screw is coaxially connected to the transmission shaft, and the lifting platform is used to place the tire tread to be transported.

[0013] Furthermore, the picking device also includes a frame, on which the lead screw lifting mechanism and the transmission mechanism are mounted.

[0014] Compared to using a backstop to brake the screw lifting mechanism, this invention adds a friction braking component, which is suitable for lifting and transporting heavy-duty workpieces such as engineering tire treads. In addition, the structure is simpler, easier to operate and less prone to damage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the transmission mechanism. Figure 2 This is a schematic diagram of the pickup device. Figure 3 This is a schematic diagram showing the transmission mechanism from another side. Explanation of markings in the diagram: 1-Drive wheel, 2-Driven wheel, 3-Synchronous transmission belt, 4-Drive motor, 5-Transmission shaft, 6-Friction disc, 7-Pneumatic gripper, 8-Friction plate, 9-Lifting screw, 10-Lifting platform, 11-Frame. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical 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 invention based on the specific circumstances.

[0019] Unless otherwise specified, the functional components or structures in the following embodiments or examples are conventional components or structures used in the art to achieve the corresponding functions.

[0020] To achieve stable braking of the lifting screw 9 during the picking process of the engineering tire tread without affecting the overall lifting and conveying process, this invention provides a tire tread picking transmission mechanism for an engineering tire forming machine. Please refer to [link / reference]. Figures 1 to 3 As shown, the lifting and transporting operation for picking up the tread of the engineering tire includes: A synchronous belt drive assembly includes a driving pulley 1, a driven pulley 2, and a synchronous drive belt 3 connecting the driving pulley 1 and the driven pulley 2. The driving pulley 1 is configured to be connected to a drive motor 4. The drive shaft 5 is coaxially connected to the driven wheel 2 and is configured to output the rotational driving force output by the synchronous belt drive assembly outward; The friction braking assembly includes a friction disc 6 fixedly connected to the driven wheel 2, and a gripper unit located next to the friction disc 6. The gripper unit can clamp the friction disc 6 when the drive motor 4 stops running, so that the drive shaft 5 remains fixed.

[0021] In some specific embodiments, the friction disc 6 and the driven wheel 2 are fixedly connected by bolts. It should be noted that the friction disc 6 and the driven wheel 2 are coaxially connected, and the outer diameter of the friction disc 6 is larger than that of the driven wheel 2, so as to leave room for the pneumatic gripper 7 to perform friction clamping.

[0022] In some specific embodiments, the upper and lower ends of the drive shaft 5 are also provided with bearings for rotatable installation, and the rotatable installation on the frame 11 of the entire equipment is achieved through the bearings.

[0023] In some specific embodiments, the gripper unit includes a pneumatic gripper 7, a solenoid valve, and pneumatic components. The solenoid valve is also connected to a controller and adjusts the opening and closing of the pneumatic gripper 7 based on the execution signal issued by the controller. It should be noted that the solenoid valve, pneumatic components, etc., are all conventional structures for controlling the opening and closing of the pneumatic gripper 7, and their specific connection relationships are not innovative improvements of this invention, and will not be elaborated further.

[0024] In a more specific implementation, the controller is linked with the drive motor 4. Based on the received operating status signal of the drive motor 4, the controller sends a corresponding execution signal to the solenoid valve, thereby controlling the opening and closing action of the pneumatic gripper 7. Specifically, the opening and closing state of the pneumatic gripper 7 satisfies the following: when the drive motor 4 is turned on, the controller sends an execution signal to the solenoid valve, the solenoid valve is energized, causing the pneumatic gripper 7 to open with air and disengage from the friction disc 6. When the drive motor 4 is turned off, the controller sends an execution signal to the solenoid valve, de-energizing the solenoid valve and causing the pneumatic gripper 7 to close and clamp the friction disc 6. Exemplarily, the controller of this invention can be a commonly used PLC controller in the art; the specific model selection is not an innovative point of this invention and will not be elaborated upon here.

[0025] In a more specific embodiment, the pneumatic gripper 7 is further provided with a friction plate 8 at the part that contacts the friction disc 6.

[0026] In some specific embodiments, the drive wheel 1 is coaxially connected to the drive motor 4.

[0027] In another aspect, the present invention provides a tread pickup device for an engineering tire forming machine, comprising: The transmission mechanism described in the first aspect above is used to output rotational driving force; A lead screw lifting mechanism is configured to receive the rotational driving force output by the transmission mechanism and convert it into vertical lifting motion to carry the picked-up tire tread up and down.

[0028] In some specific embodiments, the screw lifting mechanism includes a lifting screw 9, a lifting slider threadedly engaged with the lifting screw 9, and a lifting platform 10 fixedly connected to the lifting slider. The lifting screw is coaxially connected to the transmission shaft 5, and the lifting platform 10 is used to place the tire tread to be transported. The lifting platform 10 can be slidably connected to the frame 11 via a guide rod along the lifting direction to ensure that the lifting platform 10 only has a degree of freedom in the lifting direction, while the lifting platform 10 is fixed to the screw nut pair (matching the lifting screw 9). Here, the screw lifting mechanism is a conventional structure in the art, and its specific structure will not be described in detail. In some specific embodiments, the picking device further includes a frame 11 on which the lead screw lifting mechanism and the transmission mechanism are mounted.

[0029] Each of the above implementation methods can be implemented individually, or in any combination of two or more without violating logic.

[0030] The above implementation methods will be described in more detail below with reference to specific embodiments.

[0031] Example 1: To achieve stable braking of the lifting screw 9 during the picking of the engineering tire tread without affecting the overall lifting and conveying process, this invention provides a tire tread picking transmission mechanism for an engineering tire forming machine. This mechanism is used for braking during the lifting and conveying operation after the engineering tire tread is picked up. Please refer to [further details omitted]. Figures 1 to 3 As shown, it includes: A synchronous belt drive assembly includes a driving pulley 1, a driven pulley 2, and a synchronous drive belt 3 connecting the driving pulley 1 and the driven pulley 2. The driving pulley 1 is configured to be connected to a drive motor 4. The drive shaft 5 is coaxially connected to the driven wheel 2 and is configured to output the rotational driving force output by the synchronous belt drive assembly outward; The friction braking assembly includes a friction disc 6 fixedly connected to the driven wheel 2, and a gripper unit located next to the friction disc 6. The gripper unit can clamp the friction disc 6 when the drive motor 4 stops running, so that the drive shaft 5 remains fixed.

[0032] Please see again. Figure 1As shown, the friction disc 6 and the driven wheel 2 are fixedly connected by bolts. It should be noted that the friction disc 6 and the driven wheel 2 are coaxially connected, and the outer diameter of the friction disc 6 is larger than that of the driven wheel 2 to allow for the pneumatic gripper 7 to perform friction clamping. The upper and lower ends of the drive shaft 5 are also equipped with bearings for rotatable mounting, enabling rotatable mounting on the frame 11 of the entire equipment.

[0033] The gripper unit includes a pneumatic gripper 7, a solenoid valve, and pneumatic components. The solenoid valve is also connected to a controller and adjusts the opening and closing of the pneumatic gripper 7 based on the execution signal issued by the controller. It should be noted that the pneumatic components include commonly used air sources, gas pipelines, and gas triplet units (i.e., filters, pressure regulating valves, and lubricators). The solenoid valve and pneumatic components are all conventional structures for controlling the opening and closing of the pneumatic gripper 7. Their specific connection relationships and the process of controlling the opening and closing of the pneumatic gripper 7 are not innovative improvements of this invention and will not be elaborated further.

[0034] The controller is linked with the drive motor 4. Based on the received operating status signal of the drive motor 4, the controller sends a corresponding execution signal to the solenoid valve, thereby controlling the opening and closing action of the pneumatic gripper 7. Specifically, the opening and closing state of the pneumatic gripper 7 satisfies the following: when the drive motor 4 is turned on, the controller sends an execution signal to the solenoid valve, the solenoid valve is energized, so that the pneumatic gripper 7 is opened by air and disengages from the friction disc 6. When the drive motor 4 is turned off, the controller sends an execution signal to the solenoid valve, de-energizing the solenoid valve and causing the pneumatic gripper 7 to close and clamp the friction disc 6. For example, the controller of this invention can be a PLC controller, etc.

[0035] The pneumatic gripper 7 is also equipped with a friction plate 8 at the part that contacts the friction disk 6. The friction plate 8 increases the friction between the gripper and the friction disk 6, thereby improving the clamping and braking effect. The drive wheel 1 is coaxially connected to the drive motor 4.

[0036] The specific working process of the transmission mechanism in this embodiment is as follows: Tire treads weighing 60-80kg are picked up and placed on the lifting platform 10 of the screw lifting mechanism. The drive motor 4 is started, and the rotational driving force output by the drive motor 4 is transmitted to the screw lifting mechanism through the synchronous belt transmission assembly and the transmission shaft 5. The screw lifting mechanism lifts the tire tread to the designated position. At the same time, the controller sends an execution signal to the solenoid valve according to the start signal of the drive motor 4, controlling the solenoid valve to be energized, so that the pneumatic gripper 7 is ventilated and opened, so as not to affect the lifting operation. Then, the drive motor 4 is turned off, and the controller sends an execution signal to the solenoid valve according to the off state of the drive motor 4, controlling the solenoid valve to be de-energized, so that the start gripper is de-energized and closed, thereby clamping the friction disc 6, realizing the braking of the screw lifting mechanism and preventing the tire tread from falling off.

[0037] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A tire tread picking and transmission mechanism for an engineering tire forming machine, characterized in that, include: A synchronous belt drive assembly includes a driving pulley, a driven pulley, and a synchronous drive belt connecting the driving pulley and the driven pulley, wherein the driving pulley is configured to connect to a drive motor; A drive shaft is coaxially connected to the driven pulley and is configured to output the rotational driving force output by the synchronous belt drive assembly outward; The friction braking assembly includes a friction disc fixedly connected to the driven wheel, and a gripper unit located next to the friction disc. The gripper unit can clamp the friction disc when the drive motor stops running, so that the drive shaft remains fixed.

2. The tire tread picking and transmission mechanism for an engineering tire forming machine according to claim 1, characterized in that, The friction disc and the driven wheel are fixedly connected by bolts.

3. The tire tread picking and transmission mechanism for an engineering tire forming machine according to claim 1, characterized in that, The drive shaft is also equipped with bearings at both the upper and lower ends for rotatable installation.

4. The tire tread picking and transmission mechanism for an engineering tire forming machine according to claim 1, characterized in that, The gripper unit includes a pneumatic gripper, a solenoid valve, and pneumatic components. The solenoid valve is also connected to a controller and adjusts the opening and closing of the pneumatic gripper based on the execution signal issued by the controller.

5. The tire tread picking and transmission mechanism for an engineering tire forming machine according to claim 4, characterized in that, The opening and closing state of the pneumatic gripper satisfies the following: when the drive motor is turned on, the controller sends an execution signal to the solenoid valve, the solenoid valve is energized, causing the pneumatic gripper to open and disengage from the friction disc. When the drive motor is turned off, the controller sends an execution signal to the solenoid valve, the solenoid valve is de-energized, causing the pneumatic gripper to close and clamp the friction disc.

6. The tire tread picking and transmission mechanism for an engineering tire forming machine according to claim 4, characterized in that, The pneumatic gripper is also provided with a friction plate at the part that contacts the friction disc.

7. The tire tread picking and transmission mechanism for an engineering tire forming machine according to claim 1, characterized in that, The drive wheel is coaxially connected to the drive motor.

8. A tire tread picking device for an engineering tire forming machine, characterized in that, include: The transmission mechanism as described in any one of claims 1-7 is used to output rotational driving force; A lead screw lifting mechanism is configured to receive the rotational driving force output by the transmission mechanism and convert it into vertical lifting motion to carry the picked-up tire tread up and down.

9. The tire tread picking device for an engineering tire forming machine according to claim 8, characterized in that, The lead screw lifting mechanism includes a lifting lead screw, a lifting slider threaded to the lifting lead screw, and a lifting platform fixedly connected to the lifting slider. The lifting lead screw is coaxially connected to the transmission shaft, and the lifting platform is used to place the tire tread to be transported.

10. The tire tread picking device for an engineering tire forming machine according to claim 8, characterized in that, It also includes a frame, on which the lead screw lifting mechanism and transmission mechanism are mounted.

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