Barrel expansion device and barrel expansion system

Abstract

The utility model discloses a barrel expansion device and a barrel expansion system. The barrel expanding device comprises a power module, a transmission device and an expanding module, the power module comprises an expanding motor, and the expanding motor is used for driving the expanding module to be close to or far away from the barrel placed at the expanding station through the transmission device to achieve expansion of the barrel; the transmission device comprises a plurality of induction sheets which synchronously rotate along with the operation of the expansion motor, and sensors which are arranged in one-to-one correspondence with the induction sheets; the barrel expansion device further comprises a control module, the control module is electrically connected with all the sensors and the power module and used for receiving sensing signals of all the sensors in the operation process of the expansion motor and controlling the rotation modes of the expansion motor according to the received sensing signals, and the rotation modes comprise accelerated rotation, decelerated rotation and constant-speed rotation. By controlling the rotation mode of the expansion motor, three-section acceleration and deceleration are realized, and the uniformity of expansion force acting on the barrel body is improved.

Description

Technical Field

[0001] This application relates to the technical field of expanding devices, and particularly to a barrel expanding device and a barrel expanding system. Background Art

[0002] In modern manufacturing, especially in industries such as food, chemical, and logistics, the manufacturing and processing of metal barrels is an important link. Traditional barrel expanding processes usually rely on simple mechanical structures and manual operations. Although they can complete basic expanding functions, there are obvious deficiencies in terms of precision. This is because when using a transmission device to transfer the power of a power module to an expanding module that directly acts on the barrel, the power device operates in a way of uniform speed - stop - reverse operation. For example, the speed is the same during the process of the expanding module acting on the upper and lower parts of the barrel, resulting in uneven expanding force acting on the barrel and making it difficult to meet the requirements of modern manufacturing for high quality.

[0003] Based on this, this application provides a barrel expanding device and a barrel expanding system to solve the above problems. Utility Model Content

[0004] This application provides a barrel expanding device and a barrel expanding system, which solve the problem of insufficient precision in existing barrel expanding devices.

[0005] To achieve the above object, this application is implemented through the following technical solutions:

[0006] This application provides a barrel expanding device, including a power module, a transmission device, and an expanding module. The power module includes an expanding motor, and the expanding motor is used to drive the expanding module to approach or move away from a barrel placed at an expanding station through the transmission device, so as to achieve the expansion of the barrel.

[0007] The transmission device includes a plurality of induction sheets that rotate synchronously with the operation of the expanding motor, and sensors provided corresponding to each induction sheet one by one. The barrel expanding device further includes a control module, which is electrically connected to each of the sensors and the power module, and is used to receive the sensing signals of each of the sensors during the operation of the expanding motor, and control the rotation mode of the expanding motor to switch between accelerating rotation, uniform rotation, and decelerating rotation according to the received sensing signals.

[0008] In one embodiment of the present application, the induction sheets include a first induction sheet, a second induction sheet, and a third induction sheet, and the first induction sheet, the second induction sheet, and the third induction sheet are sequentially arranged in an alternating manner along the motor shaft of the expansion motor; the sensors include a first sensor, a second sensor, and a third sensor respectively corresponding to the first induction sheet, the second induction sheet, and the third induction sheet, and are used to control the expansion motor to rotate at an accelerated speed when the first sensor senses the first induction sheet, control the expansion motor to rotate at a constant speed when the second sensor senses the second induction sheet, and control the expansion motor to rotate at a decelerated speed when the third sensor senses the third induction sheet.

[0009] In one embodiment of the present application, the first induction sheet, the second induction sheet, and the third induction sheet are movably positioned on the motor shaft of the expansion motor.

[0010] In one embodiment of the present application, it further includes a spare induction sheet arranged on the motor shaft of the expansion motor, and a spare sensor corresponding to the spare induction sheet.

[0011] In one embodiment of the present application, the control module is a PLC control module.

[0012] In one embodiment of the present application, the power module further includes a driving unit arranged between the control module and the expansion motor, and the driving unit is electrically connected to the control module and the expansion motor, and is used to receive the mode selection signal sent by the control module and generate a corresponding driving signal to be sent to the expansion motor, and the mode selection signal is generated by the control module according to the received sensing signal.

[0013] In one embodiment of the present application, the driving unit includes a frequency converter, and the frequency converter is electrically connected to the PLC control module and the expansion motor, and the frequency converter is used to control the rotation speed of the expansion motor by adjusting the output frequency.

[0014] In one embodiment of the present application, the transmission device includes a cam, a lever arm, and a pull rod that are in transmission connection with the expansion motor, and the expansion module includes an upper cone block, a lower cone block connected to the pull rod, and an expansion mold sleeved between the upper cone block and the lower cone block.

[0015] The present application also provides a barrel expansion system, including the barrel expansion device according to any one of the above embodiments, and further including a barrel transfer device, and the barrel transfer device is arranged below the expansion station and is used to move the barrel to be expanded to the expansion station.

[0016] In one embodiment of the present application, the barrel transfer device includes a servo motor and a tray device for placing the barrel; the servo motor is used to move the tray device closer to or farther from the expansion station to achieve the displacement of the barrel.

[0017] Compared with the prior art, by applying a barrel expansion device and a barrel expansion system provided by the present application, the rotation mode of the expansion motor can be precisely controlled. When the power of the power module is transmitted to the expansion module directly acting on the barrel through the transmission device, the power device can drive the transmission device and the expansion module to achieve three-stage acceleration and deceleration (accelerated rotation, uniform rotation, and decelerated rotation). For example, the speeds during the process of the expansion module acting on the upper and lower parts of the barrel are different, which improves the uniformity of the expansion force acting on the barrel, thereby improving the geometric accuracy and dimensional stability of the barrel and meeting the requirements of modern manufacturing for high quality. Since the expansion process is more uniform and controllable, the dimensional stability of the barrel is improved, reducing the waste products caused by dimensional deviation and lowering the production cost. Precise control of the motor's acceleration and deceleration reduces mechanical shock and wear, extends the service life, and reduces the maintenance cost. Automated control reduces manual intervention and improves production efficiency. At the same time, precise control also makes the production process more stable and improves the overall efficiency of the production line. By adjusting the position or parameters of the induction sheet and the sensor, different production requirements can be easily adapted, making the device more flexible, easy to maintain and adjust. The uniform expansion force helps to improve the quality of the barrel, especially the parallelism of the barrel mouth and the barrel bottom, which is beneficial to the subsequent curling and hemming processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a barrel expansion device provided by an embodiment of the present application.

[0019] Figure 2 It is a schematic structural diagram of a barrel expansion device provided by an embodiment of the present application from another angle.

[0020] Figure 3 It is a schematic structural diagram of a transmission device and an expansion module provided by an embodiment of the present application.

[0021] Figure 4 It is a schematic structural diagram of a barrel expansion system provided by an embodiment of the present application.

[0022] Figure 5 It is a schematic structural diagram of a barrel expansion system when the barrel reaches the position of the tray device provided by an embodiment of the present application.

[0023] Figure 6 It is a schematic structural diagram of a barrel expansion system when the barrel reaches the expansion station provided by an embodiment of the present application.

[0024] Illustration: 100, barrel expansion device; 101, power module; 102, expansion module; 103, induction piece; 104, sensor; 105, cam; 106, lever arm; 107, pull rod; 108, upper cone block; 109, expansion die; 110, lower cone block; 111, gearbox; 200, barrel transfer device; 201, servo motor; 202, tray device; 300, barrel body. Detailed implementation mode

[0025] For the convenience of understanding this application, the following will describe this application more comprehensively with reference to the relevant drawings. The preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of this application more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] Embodiment 1

[0028] See Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of a barrel expansion device provided by an embodiment of this application, Figure 2 is a schematic structural diagram of another angle of a barrel expansion device provided by an embodiment of this application.

[0029] This embodiment provides a barrel expansion device 100, including a power module 101, a transmission device, and an expansion module 102. The power module 101 includes an expansion motor, and the expansion motor is used to drive the expansion module 102 to approach or move away from the barrel placed at the expansion station through the transmission device, so as to realize the expansion of the barrel;

[0030] The transmission device includes a plurality of induction pieces 103 that rotate synchronously with the operation of the expansion motor, and sensors 104 provided in one-to-one correspondence with each induction piece 103; the barrel expansion device 100 further includes a control module, and the control module is electrically connected to each of the sensors 104 and the power module 101, and is used to receive the sensing signals of each of the sensors 104 during the operation of the expansion motor, and control the rotation mode of the expansion motor to switch between accelerated rotation, uniform rotation, and decelerated rotation according to the received sensing signals.

[0031] The expansion motor serves as the power source, providing power to drive the entire expansion process. The transmission device connects the expansion motor and the expansion module 102 to ensure the effective transmission of the power from the expansion motor. The induction piece 103 in the transmission device rotates synchronously with the motor and is used to monitor the rotation state of the motor. Each induction piece 103 corresponds to a sensor 104. When the induction piece 103 rotates into the detection range of the sensor 104, the sensor 104 can detect the position change of the induction piece 103, thereby obtaining the rotation information of the motor and simultaneously learning about the expansion stage of the barrel body transmitted by the transmission device to the expansion module 102. The control module receives the sensing signal from the sensor 104 and controls the operation mode of the expansion motor according to the sensing signal. The control module can be set to adjust the rotation speed of the motor at different expansion stages of the barrel body to achieve accelerated rotation, decelerated rotation, and uniform rotation. The expansion module 102 acts directly on the barrel body and realizes the expansion of the barrel body through the drive of the power module 101 and the transmission device. The moving distance and speed of the expansion module 102 are precisely controlled by the control module. It can be considered that the accelerated rotation, decelerated rotation, and uniform rotation of the rotation mode can include multiple modes with different speeds or different acceleration and deceleration processes, such as the first accelerated rotation mode, the second accelerated rotation mode, the first uniform rotation mode, the second uniform rotation mode, the first decelerated rotation mode, the second decelerated rotation mode, etc.

[0032] Among them, each induction piece 103 rotates synchronously with the rotation of the expansion motor. When an induction piece 103 enters the detection range of the corresponding sensor 104, the sensor 104 can detect the presence of the induction piece 103. The detection method can be optical, magnetic, or mechanical, depending specifically on the type of the sensor 104. It can be considered that after the sensor 104 detects the induction piece 103, it will generate a sensing signal containing the position of the induction piece 103. By analyzing the sensing signal, the control module can determine the precise position of the expansion motor and the position of the expansion module 102 relative to the barrel body. In specific applications, by adjusting the configuration of the induction piece 103 and the sensor 104, it can flexibly adapt to different specifications of barrel bodies and different expansion requirements, enhancing the adaptability and flexibility of the barrel body expansion device 100. Among them, the diameter of the barrel mouth of the barrel body is larger than that of the barrel bottom.

[0033] Compared with the traditional barrel expansion device that can only achieve the action steps of the power device running at a constant speed - stopping - running in reverse, the barrel expansion device 100 provided in this embodiment can precisely control the rotation mode of the expansion motor. When the power of the power module 101 is transmitted to the expansion module 102 that directly acts on the barrel through the transmission device, the power device can drive the transmission device and the expansion module 102 to achieve three-stage acceleration and deceleration (accelerated rotation, constant-speed rotation, and decelerated rotation). For example, the speeds during the process of the expansion module 102 acting on the upper and lower parts of the barrel are different, which improves the uniformity of the expansion force acting on the barrel, thereby improving the geometric accuracy and dimensional stability of the barrel and meeting the requirements of modern manufacturing for high quality. Since the expansion process is more uniform and controllable, the dimensional stability of the barrel is improved, reducing the waste products caused by dimensional deviation and lowering the production cost. Precise control of the motor's acceleration and deceleration reduces mechanical shock and wear, extends the service life, and reduces the maintenance cost. Automated control reduces manual intervention and improves production efficiency. At the same time, precise control also makes the production process more stable and improves the overall efficiency of the production line. By adjusting the positions or parameters of the induction piece 103 and the sensor 104, different production requirements can be easily adapted, making the device more flexible, easy to maintain and adjust. The uniform expansion force helps to improve the quality of the barrel, especially the parallelism of the barrel mouth and the barrel bottom, which is beneficial to the subsequent curling and hemming processes.

[0034] In some embodiments, the induction piece includes a first induction piece, a second induction piece, and a third induction piece, and the first induction piece, the second induction piece, and the third induction piece are arranged alternately along the motor shaft of the expansion motor in sequence; the sensor includes a first sensor, a second sensor, and a third sensor respectively corresponding to the first induction piece, the second induction piece, and the third induction piece, and is used to control the expansion motor to accelerate rotation when the first sensor senses the first induction piece, control the expansion motor to rotate at a constant speed when the second sensor senses the second induction piece, and control the expansion motor to decelerate rotation when the third sensor senses the third induction piece. The motor shaft of the expansion motor may refer to the motor spindle. See Figure 2 , in specific applications, the main shaft of the motor realizes torque transmission and speed conversion through the gearbox 111, and the motor shaft of the expansion motor mentioned in this application may refer to the output shaft of the gearbox 111.

[0035] The first induction piece, the second induction piece, and the third induction piece are arranged alternately along the motor shaft in sequence, such that each induction piece contacts the corresponding sensor when the motor shaft rotates to a specific position, thereby obtaining sensing signals at different positions, and further triggering different control signals. The control module receives the signals from the sensors and adjusts the operating mode of the expansion motor. The adjustment can be achieved by the control module sending instructions to the power module, thereby precisely controlling the movement of the expansion module. The expansion module performs corresponding movements according to the instructions of the power module to achieve the expansion of the barrel body.

[0036] Thus, through the cooperation of the induction pieces and the sensors, precise control over the rotation mode of the expansion motor, including acceleration, constant speed, and deceleration, is achieved, thereby ensuring the uniformity and precision of the expansion process. Precise control of the expansion process can reduce the deformation and dimensional deviation of the barrel body, reduce the rejection rate, and improve production efficiency.

[0037] In some embodiments, the first induction piece, the second induction piece, and the third induction piece are movably positioned on the motor shaft of the expansion motor.

[0038] The induction pieces can move along the circumferential direction of the motor shaft, allowing the position of the induction pieces to be adjusted without replacing the hardware. By changing the position of the induction pieces, the start and end points of the acceleration, constant speed, and deceleration phases of the expansion motor can be changed. Movably positioning means that the induction pieces can adjust their positions as needed to adapt to different working conditions or required connection relationships. For example, sliding grooves are designed at the positions where the induction pieces are arranged on the motor shaft, and the induction pieces can slide in the grooves; also for example, a series of evenly distributed holes are provided at the positions where the induction pieces are arranged on the motor shaft, and the induction pieces are fixed at specific positions by inserting pins into the holes. The motor shaft mentioned here can be a structure extending from the output shaft of the expansion motor.

[0039] Thus, the movability of the induction pieces provides a high degree of adjustability, enabling the same barrel body expansion device to adapt to a variety of different expansion requirements, and increasing the applicability and flexibility of the barrel body expansion device.

[0040] In some embodiments, it further includes a spare induction piece arranged on the motor shaft of the expansion motor, and a spare sensor correspondingly arranged with the spare induction piece.

[0041] That is to say, in addition to the three main induction pieces (the first induction piece, the second induction piece, and the third induction piece) for controlling different rotation modes of the expansion motor, a spare induction piece and a corresponding spare sensor are added, providing additional flexibility and reliability. When the main induction piece or sensor fails, the spare induction piece and sensor can be used as a backup to reduce the production interruption time.

[0042] In some embodiments, the control module is a PLC control module. The PLC control module receives signals from sensors and controls the operation mode of the expansion motor according to preset program logic. The PLC can process multiple input signals (including sensing signals) and control multiple outputs according to the signals (including the outputs for controlling the frequency converter of the power module). When sensors (including the first, second, third, and spare sensors) detect the corresponding sensing pieces, they send signals to the PLC. The PLC decides whether the expansion motor should accelerate, decelerate, or rotate at a constant speed based on the signals and the preset program. This is because the program logic inside the PLC can be programmed as needed to implement specific control strategies. For example, when the first sensor detects the first sensing piece, the PLC can be programmed to send an instruction to make the expansion motor accelerate.

[0043] Thus, using a PLC as the control module can improve the automation level of the entire barrel expansion device, reduce manual intervention, and improve production efficiency. The PLC has high reliability and stability, is suitable for long-term operation in an industrial environment, and reduces production interruptions caused by control module failures.

[0044] In some embodiments, the power module 101 further includes a drive unit disposed between the control module and the expansion motor. The drive unit is electrically connected to the control module and the expansion motor and is configured to receive the mode selection signal sent by the control module and generate a corresponding drive signal to be sent to the expansion motor. The mode selection signal is generated by the control module based on the received sensing signals.

[0045] As an example, the control module is a PLC control module including a PLC. The drive unit is located between the PLC control module and the expansion motor, and its main function is to receive control signals from the PLC and generate drive signals suitable for driving the expansion motor based on these signals. The PLC generates a mode selection signal based on the signals received from the sensor 104, indicating the operation mode that the expansion motor should execute, such as accelerating, decelerating, or rotating at a constant speed. The drive unit receives the mode selection signal sent by the PLC and converts it into a drive signal that the expansion motor can respond to.

[0046] Thus, the drive unit can provide more precise current and voltage control, and by using the drive unit, the operation of the expansion motor can be controlled more accurately.

[0047] In some embodiments, the drive unit includes a frequency converter. The frequency converter is electrically connected to the PLC control module and the expansion motor, and the frequency converter is configured to control the rotation speed of the expansion motor by adjusting the output frequency.

[0048] The frequency converter receives signals from the PLC control module. The signals are based on the input of sensor 104 to determine the operating mode of the expansion motor. The frequency converter controls the speed of the connected expansion motor by adjusting its output frequency. It can be understood that the PLC generates control signals according to the position of the induction piece 103 detected by sensor 104 and sends these signals to the frequency converter. The frequency converter adjusts its output frequency according to the received signals, thereby changing the speed of the expansion motor. The expansion motor adjusts its speed according to the frequency change provided by the frequency converter to achieve precise expansion control.

[0049] Thus, the frequency converter provides precise speed control, enabling the expansion process to be finely adjusted as needed, improving the quality and consistency of the product. The frequency converter makes the start and stop of the expansion motor smoother, reducing the downtime during the production process and improving the overall efficiency of the production line.

[0050] See Figure 3 , Figure 3 which is a schematic structural diagram of a transmission device and an expansion module 102 provided by an embodiment of the present application.

[0051] In some embodiments, the transmission device includes a cam 105, a lever arm 106, and a pull rod 107 that are drivingly connected to the expansion motor. The expansion module 102 includes an upper cone block 108, a lower cone block 110 connected to the pull rod 107, and an expansion die 109 sleeved between the upper cone block 108 and the lower cone block 110.

[0052] It can be considered that when the barrel 300 reaches the expansion station, the expansion motor is used to drive the cam 105 to rotate, the cam 105 is used to drive the lever arm 106 to swing, and the lever arm 106 is used to lift the pull rod 107 upward so that the upper cone block 108 and the lower cone block 110 open the expansion die 109 outward to a specified size to achieve the expansion of the barrel 300; after the expansion of the barrel 300 is achieved, the expansion motor is further used to drive the upper cone block 108, the lower cone block 110, and the expansion die 109 to return to the initial position through the cam 105, the lever arm 106, and the pull rod 107

[0053] Due to the arrangement of a plurality of induction pieces 103 that rotate synchronously with the operation of the expansion motor and sensors 104 arranged in one-to-one correspondence with each induction piece 103, the uniformity of force during the expansion process can be ensured by adopting a three-stage acceleration and deceleration design.

[0054] As an example, a barrel expansion device 100 is provided, including a power module 101, a transmission device, and an expansion module 102.

[0055] The power module 101 includes an expansion motor, which is used to drive the expansion module 102 to approach or move away from the barrel body placed at the expansion station through a transmission device to achieve expansion of the barrel body.

[0056] The power module 101 also includes a drive unit disposed between the control module and the expansion motor, the drive unit includes a frequency converter, the frequency converter is electrically connected to the PLC control module and the expansion motor, and the frequency converter is used to receive a mode selection signal and control the rotation speed of the expansion motor by adjusting the output frequency. The mode selection signal is generated by the control module according to the received sensor signal.

[0057] The transmission device includes a cam 105, a lever arm 106 and a pull rod 107 which are transmission-connected to the expansion motor; the induction plate 103 includes a first induction plate, a second induction plate and a third induction plate, and also includes a spare induction plate arranged on the motor shaft.

[0058] The first induction sheet, the second induction sheet, the third induction sheet and the spare induction sheet are movably positioned on the motor shaft; the first induction sheet, the second induction sheet, the third induction sheet and the spare induction sheet are arranged alternately on the motor shaft in sequence; the sensor comprises a first sensor, a second sensor, a third sensor and a spare sensor which are arranged corresponding to the first induction sheet, the second induction sheet, the third induction sheet and the spare induction sheet respectively, and is used to control the expansion motor to accelerate rotation when the first sensor senses the first induction sheet, control the expansion motor to rotate at a constant speed when the second sensor senses the second induction sheet, and control the expansion motor to decelerate rotation when the third sensor senses the third induction sheet;

[0059] The expansion module 102 includes an upper cone block 108 and a lower cone block 110 connected to the pull rod 107 , and an expansion mold 109 sleeved between the upper cone block 108 and the lower cone block 110 .

[0060] The barrel expansion device 100 also includes a control module, which is a PLC control module. The control module is electrically connected to each sensor 104 and the power module 101, and is used to receive the sensor signals of each sensor 104 during the operation of the expansion motor, and control the rotation mode of the expansion motor according to the received sensor signals, and the rotation mode includes accelerated rotation, decelerated rotation and uniform rotation.

[0061] It can be considered that the application of the barrel expansion device 100 can make the expansion motor start from the origin after operation, with an acceleration section, a deceleration section, and then return to the origin. And each acceleration and deceleration section can be adjusted separately. Specifically: the sensor 104 is fixed in position and does not move, and the angle of the corresponding induction sheet 103 on the motor shaft is adjusted to change the time period of the acceleration section and the deceleration section. The acceleration and deceleration expansion process is beneficial to product quality, and the parallelism between the barrel mouth and the barrel bottom is better, which is beneficial to the next process, and the bottom is better sealed and the mouth is better curled.

[0062] Thus, the provided barrel expansion device 100 ensures the uniformity of force during the expansion process by adopting a three-stage acceleration and deceleration design. The expansion motor drives the expansion mold 109 to smoothly transition in the three stages of acceleration, uniform speed and deceleration, effectively avoiding the problem of barrel deformation caused by uneven force in traditional mechanical equipment, thereby improving the quality of the barrel. The servo motor and PLC accurately control every detail in the expansion process to ensure that the barrel is expanded to a predetermined size, reduce dimensional fluctuations, and ensure that the product meets high standards of tolerance requirements. The expansion motor can be a servo motor. By adopting a servo motor and precise control of the above-mentioned structure, the frequent movement and impact of the mechanical part are reduced, the mechanical wear of the device is greatly reduced, the service life of the device is extended, and the maintenance cost is reduced. At the same time, the precise control of the sensor 104 and the PLC system enables each step to be completed accurately and quickly, significantly improving the efficiency of the overall production line.

[0063] Example 2

[0064] See also Figure 4 , Figure 4 A schematic structural diagram of a barrel expansion system provided in an embodiment of the present application.

[0065] This embodiment provides a barrel expansion system, including the barrel expansion device 100 described in any one of Embodiment 1, and also including a barrel transfer device 200, the barrel transfer device 200 is arranged below the expansion station, and is used to move the barrel 300 to be expanded to the expansion station. The specific implementation method of the barrel expansion system is consistent with the implementation method and the technical effect achieved in the above-mentioned Embodiment 1, and some contents are not repeated here.

[0066] In some embodiments, the barrel transfer device 200 includes a servo motor 201 and a tray device 202 , wherein the tray device 202 is used to place the barrel; the servo motor 201 is used to move the tray device 202 closer to or away from the expansion station to achieve displacement of the barrel 300 .

[0067] See also Figure 5 and Figure 6 , Figure 5 A schematic structural diagram of a barrel expansion system when the barrel reaches the position of a tray device provided in an embodiment of the present application. Figure 6 A schematic structural diagram of a barrel expansion system provided in an embodiment of the present application when the barrel reaches an expansion station.

[0068] As an example, the action principle of barrel expansion using the above barrel expansion system is provided, and the action principle is as follows:

[0069] 1. When the barrel body 300 reaches the position of the pallet device 202, the servo motor 201 of the barrel body transfer device 200 starts, driving the pallet device 202 to rise to the designated position (expansion station). The servo motor 201 of the barrel body transfer device 200 stops running, and the pallet device 202 stays at the designated position and remains stationary.

[0070] 2. After the servo motor 201 of the barrel body transfer device 200 stops running, it conveys a signal to the expansion motor, and the expansion motor starts and drives the cam 105 to operate.

[0071] 3. The cam 105 operates through a three-stage acceleration and deceleration (the purpose is to keep the expansion force uniform, the size more stable, the vertical parallelism better, which is beneficial to the subsequent processes, better curling at the bottom, and better curling at the mouth).

[0072] The operation of the cam 105 causes the lever arm 106 to swing, lifting the pull rod 107 upward. The upper and lower tapered blocks 110 connected to the pull rod 107 open the expansion die outward to the designated size.

[0073] 4. An induction adjustment piece is installed at the motor shaft end. It mutually senses with the sensor 104 at the fixed position by adjusting the angle of the induction piece 103 and transmits a signal to the PLC. After the execution program passes, it is transmitted to the frequency converter where the expansion motor is located. The acceleration and deceleration of the motor are determined by the frequency of the frequency converter.

[0074] 5. After the expansion action is completed, the cam 105 returns to the origin. The sensor 104 transmits a signal to the motor of the pallet device 202 that lifted the barrel. After the PLC executes the program, the pallet device 202 descends to the origin of the pallet device 202.

[0075] 6. After completing the steps of one process, loop back to the previous step.

[0076] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A barrel body expansion device, comprising a power module, a transmission device and an expansion module. The power module includes an expansion motor, and the expansion motor is used to drive the expansion module to approach or move away from a barrel body placed at an expansion station through the transmission device, so as to realize the expansion of the barrel body. It is characterized in that The transmission device includes a plurality of induction sheets that rotate synchronously with the operation of the expansion motor, and sensors respectively corresponding to each induction sheet. The barrel body expansion device further includes a control module, which is electrically connected to each of the sensors and the power module, and is used to receive the sensing signals of each of the sensors during the operation of the expansion motor, and control the rotation mode of the expansion motor to switch between accelerating rotation, constant-speed rotation and decelerating rotation according to the received sensing signals.

2. The dilatation device according to claim 1, wherein The induction sheets include a first induction sheet, a second induction sheet and a third induction sheet, and the first induction sheet, the second induction sheet and the third induction sheet are sequentially arranged in a staggered manner along the motor shaft of the expansion motor. The sensors include a first sensor, a second sensor and a third sensor respectively corresponding to the first induction sheet, the second induction sheet and the third induction sheet, and are used to control the expansion motor to accelerate rotation when the first sensor senses the first induction sheet, control the expansion motor to rotate at a constant speed when the second sensor senses the second induction sheet, and control the expansion motor to decelerate rotation when the third sensor senses the third induction sheet.

3. The dilatation device according to claim 2, characterized in that, The first induction sheet, the second induction sheet and the third induction sheet are movably positioned on the motor shaft of the expansion motor.

4. The dilatation device according to claim 3, characterized in that, It further includes a spare induction sheet arranged on the motor shaft of the expansion motor, and a spare sensor corresponding to the spare induction sheet.

5. The dilatation device according to claim 2, characterized in that The transmission device includes a cam, a lever arm and a pull rod that are in transmission connection with the expansion motor. The expansion module includes an upper cone block, a lower cone block connected to the pull rod, and an expansion die sleeved between the upper cone block and the lower cone block.

6. The dilatation device according to claim 1, characterized in that, The control module is a PLC control module.

7. The dilatation device according to claim 6, characterized in that, The power module further includes a drive unit arranged between the control module and the expansion motor. The drive unit is electrically connected to the control module and the expansion motor, and is used to receive the mode selection signal sent by the control module and generate a corresponding drive signal to be sent to the expansion motor. The mode selection signal is generated by the control module according to the received sensing signals.

8. The dilation device according to claim 7, characterized in that, The drive unit includes a frequency converter. The frequency converter is electrically connected to the PLC control module and the expansion motor, and the frequency converter is used to control the rotation speed of the expansion motor by adjusting the output frequency.

9. A barrel expansion system, characterized in that, Including the barrel body expansion device according to any one of claims 1-8, it further includes a barrel body transfer device. The barrel body transfer device is arranged below the expansion station and is used to move the barrel body to be expanded to the expansion station.

10. The barrel expansion system according to claim 9, characterized in that, The barrel body transfer device includes a servo motor and a tray device. The tray device is used to place the barrel body. The servo motor is used to make the tray device approach or move away from the expansion station to realize the displacement of the barrel body.

Images