Overturning feeding system of elevator

Abstract

The utility model discloses a turnover feeding system of an elevator, which is characterized in that a lifting fork inclination angle of a lifting fork is detected through a charging barrel state detection device and an inclination angle sensor arranged on the lifting fork, the state of a charging barrel is judged according to the lifting fork inclination angle, and the lifting fork is driven to move in the vertical direction through a lifting motor arranged on an upright post of the elevator; the position of a lifting fork is detected through a position detection module arranged on an elevator stand column, a charging barrel provided with the lifting fork is used for charging at a charging position and discharging at a discharging position, charging and discharging are controlled through a turnover motor, the charging and discharging processes of the whole system are achieved through a controller, and the system is simple in structure and convenient to use. Automatic feeding of a wet type granulator elevator, automatic feeding of a medicinal fluidized bed one-step granulation elevator, automatic feeding of a tablet machine elevator, automatic feeding of a capsule machine elevator, automatic feeding of a dry type granulator elevator and the like are achieved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical equipment technology, and in particular to a lifting machine tilting feeding system. Background Technology

[0002] In the process of feeding solid dosage form equipment in the pharmaceutical field, it is necessary to avoid excessive human involvement, which could cause unnecessary contamination of the materials and thus prevent a decline in drug quality.

[0003] Currently, most elevator feeding systems are controlled by buttons, and the elevator rotation still requires manual control. There are too many uncertainties in the automated operation of solid dosage form equipment, making it impossible to achieve true workshop intelligence and impacting pharmaceutical efficiency and costs. Utility Model Content

[0004] The purpose of this invention is to provide a lifting machine tilting feeding system that enables automatic feeding of the lifting machine for wet granulation machines, one-step granulation machines for pharmaceutical fluidized beds, tableting machines, capsule machines, and dry granulation machines, thereby achieving automated and continuous production in solid dosage form workshops.

[0005] To solve the above-mentioned technical problems, this utility model provides a hoist tilting feeding system, comprising:

[0006] A barrel condition detection device includes an inclination sensor installed on a lifting fork, the inclination sensor being used to detect the lifting fork inclination angle to determine the barrel condition;

[0007] A lifting motor, mounted on the lifting machine column, is used to drive the lifting fork to move vertically.

[0008] A position detection module is installed on the elevator column, including a loading position sensor installed at the loading position and a unloading position sensor installed at the unloading position. The loading position sensor is used to send a loading trigger signal after the lifting fork reaches the loading position, and the unloading position sensor is used to send a unloading trigger signal after the lifting fork reaches the unloading position.

[0009] A flipping motor is installed on the lifting fork and is used to drive the lifting fork to flip in a vertical plane, thereby flipping the material cylinder installed on the lifting fork to complete the loading and unloading operations.

[0010] The controller is connected to the barrel status detection device, the position detection module, the lifting motor, and the tilting motor, and is used to control the operation of the lifting motor and the tilting motor.

[0011] It also includes a rotary motor connected to the lifting fork and located at the loading or unloading position, used to control the lifting fork to rotate left or right in the horizontal plane.

[0012] It also includes a left rotation sensor located on the left side of the rotary motor and a right rotation sensor located on the right side, for detecting the rotation angle of the lifting fork.

[0013] It also includes left and right rotation mechanical limiters installed on the elevator column and located on both sides of the rotary motor, used to limit the left and right rotation angle of the lifting fork.

[0014] It also includes a minimum position sensor located at a predetermined minimum safe position below the loading position sensor on the elevator column. This sensor sends a low position signal to the controller after detecting that the lifting fork has reached the predetermined minimum safe position. The controller then controls the elevator to stop moving downward via the lifting motor, thereby preventing the material cylinder from continuing to descend at the loading position.

[0015] It also includes a highest position sensor located at a predetermined highest safe position above the unloading position sensor on the elevator column, which is used to send a high position signal to the controller when the lifting fork is detected to have reached the predetermined highest safe position, and the controller controls the elevator to stop moving upward through the lifting motor.

[0016] The lifting motor controls the height of the material cylinder via a lifting rope mounted on the lifting column, or via a column guide rail mounted on the lifting column.

[0017] The system also includes a frequency converter disposed between the controller and the lifting motor, the tilting motor, and the rotating motor, for converting the control signal of the controller into the drive signal of the lifting motor, the tilting motor, and the rotating motor. The controller is a PLC controller or a microcontroller controller, and is connected to the controller via an OPC UA interface. The controller is connected to an MES data acquisition module or a SCADA data acquisition module via the OPC UA interface to collect information from the barrel status detection device and the position detection module.

[0018] It also includes a safety light curtain device installed on the hoist column, used to detect whether a person or obstacle enters the detection range of the safety light curtain device within a specified range, and to send an alarm signal or a stop signal to the controller after detecting that a person or obstacle has entered the detection range of the safety light curtain device in the hoisting area.

[0019] It also includes a touch screen connected to the controller, used to input the controller's control signals and control parameters, and to display the controller's output instructions.

[0020] The elevator tilting feeding system provided in this embodiment of the utility model has the following advantages compared with the prior art:

[0021] The elevator tilting feeding system provided in this embodiment of the utility model uses a material cylinder state detection device installed on the tilt sensor of the lifting fork to detect the tilt angle of the lifting fork, and determines the state of the material cylinder based on the tilt angle. The lifting motor installed on the elevator column drives the lifting fork to move in the vertical direction. The position detection module installed on the elevator column detects the position of the lifting fork, realizing that the material cylinder with the lifting fork is loaded at the loading position and unloaded at the unloading position. The loading and unloading are controlled by the tilting motor. The entire loading and unloading process of the system is realized by the controller, realizing automatic feeding of elevators for wet granulation machines, one-step granulation machines for pharmaceutical fluidized beds, tableting machines, capsule machines, and dry granulation machines. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a structure of an embodiment of the elevator tilting feeding system provided by this utility model;

[0024] Among them, 40-position detection module, 20-barrel status detection device, 21-lifting fork, 30-lifting motor, 10-elevator column, 41-loading position sensor, 42-unloading position sensor, 43-lowest position sensor, 44-high position sensor, 45-highest position sensor, 50-tilting motor, 60-rotating motor, 61-left rotation sensor, 62-right rotation sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] OPC (OLE for Process Control) is a communication interface standard used in the field of industrial control. OPCUA (Unified Architecture) is the latest standard of OPC.

[0027] PLC: Programmable Logic Controller, is a digital computing controller with a microprocessor used for automation control. It can load control instructions into memory for storage and execution at any time.

[0028] PROFINET, launched by PROFIBUS International (PI), is a new generation of automation bus standard based on industrial Ethernet technology, abbreviated as PN.

[0029] AGV: AGV (Automated Guided Vehicles) is also known as unmanned transport vehicle, automatic navigation vehicle, or laser navigation vehicle.

[0030] Please refer to Figure 1 , Figure 1 This is a schematic diagram of an embodiment of the elevator tilting feeding system provided by this utility model.

[0031] In one specific embodiment, the elevator tilting feeding system includes:

[0032] The barrel state detection device 20 includes an inclination sensor installed on the lifting fork 21. The inclination sensor is used to detect the lifting fork inclination angle of the lifting fork 21 to determine the barrel state. The barrel state includes a normal state and a flipped-in state.

[0033] A lifting motor 30 is installed on the lifting machine column 10 and is used to drive the lifting fork 21 to move in the vertical direction;

[0034] The position detection module 40 is installed on the elevator column 10, including a loading position sensor 41 installed at the loading position and a unloading position sensor 2 installed at the unloading position. The loading position sensor 41 is used to send a loading trigger signal after the lifting fork 21 reaches the loading position, and the unloading position sensor 42 is used to send a unloading trigger signal after the lifting fork 21 reaches the unloading position.

[0035] A flipping motor 50 is installed on the lifting fork 21 and is used to drive the lifting fork 21 to flip in the vertical plane, thereby flipping the material cylinder installed on the lifting fork 21 to complete the loading and unloading operations.

[0036] The controller is connected to the barrel status detection device 20, the position detection module 40, the lifting motor, and the tilting motor 50, and is used to control the operation of the lifting motor and the tilting motor.

[0037] The tilt angle of the lifting fork 21 is detected by the tilt sensor installed on the lifting fork 21 through the barrel state detection device 20, and the barrel state is determined according to the tilt angle. The lifting fork 21 is driven to move vertically by the lifting motor 30 installed on the lifting column 10. The position of the lifting fork 21 is detected by the position detection module 40 installed on the lifting column 10, so that the barrel with the lifting fork 21 is loaded at the loading position and unloaded at the unloading position. The loading and unloading are controlled by the flipping motor 50. The entire loading and unloading process of the system is realized by the controller, realizing automatic feeding of the elevator of wet granulation machine, automatic feeding of the elevator of pharmaceutical fluidized bed one-step granulation machine, automatic feeding of the elevator of tableting machine, automatic feeding of the elevator of capsule machine, and automatic feeding of the elevator of dry granulation machine.

[0038] Since loading and unloading may not be on the same vertical plane, the lifting fork 21 needs to be rotated circumferentially to enable material assembly and unloading at different positions, thereby improving the system's applicability. In one embodiment, the lifting machine tilting feeding system also includes a rotary motor 60 connected to the lifting fork 21 and located at the loading or unloading position, used to control the lifting fork 21 to rotate left or right in the horizontal plane.

[0039] By setting a rotary motor 60, the lifting fork 21 can be controlled to rotate left or right in the horizontal plane at the loading or unloading position, thereby controlling it to a suitable position and improving the flexibility of the system.

[0040] This application does not limit the type of rotary motor 60, its driving method, or its installation method.

[0041] To further improve the precision of the rotation angle control of the rotary motor 60, in one embodiment, the elevator tilting feeding system further includes a left rotation sensor 61 on the left side of the rotary motor 60 and a right rotation sensor 62 on the right side, for detecting the rotation angle of the lifting fork 21.

[0042] By detecting the rotation angle of the lifting fork 21 using the left rotation sensor 61 and the right rotation sensor 62, real-time feedback can be achieved, enabling closed-loop control and improving control accuracy and efficiency.

[0043] This application does not limit the types of the left rotation sensor 61 and the right rotation sensor 62 on the right side. They can be implemented using proximity sensors, photoelectric sensors, or other types of sensors.

[0044] The aforementioned rotary motor 60 can be installed on the lifting fork 21, the hoist column 10, or in other locations, such as the lifting fork 21. The lifting fork 21 is connected to the hoist column 10 via bearings. The internal structure is used for lifting control, and the external structure is used for rotation control. Alternatively, after reaching the position of the rotary motor 60, the lifting fork 21 can be transferred from the hoist column 10 to the control panel of the rotary motor 60. After completing the rotation for loading or unloading, it can be reset and reconnected to the hoist column 10 to enable the next lifting operation. Other structures may also be used.

[0045] To further ensure safety during use and prevent uncontrolled rotation, in one embodiment, the elevator tilting feeding system further includes left and right rotation mechanical limiters disposed on the elevator column 10 and located on both sides of the rotary motor 60, for limiting the left and right rotation angle of the lifting fork 21.

[0046] By setting a left and right rotation mechanical limiter to limit the left and right rotation angle of the lifting fork 21, even if the lifting fork 21 may continue to rotate due to loss of control, it will stop due to the resistance setting of the left and right rotation mechanical limiter, thus improving the safety of use.

[0047] This application does not limit the structure of the left and right rotation mechanical limiters. It can be a blocking structure, or it can add a signal triggering device to send a stop signal to the rotary motor 60, etc., to actively stop the rotary motor 60.

[0048] Since this application also involves lifting and lowering operations, in order to ensure operational reliability, even if the motor malfunctions or stops, it will not lift the material to the designated range, thereby avoiding equipment damage and improving safety in use.

[0049] In one embodiment, the elevator tilting feeding system further includes a minimum position sensor 43 located at a predetermined minimum safe position below the loading position sensor on the elevator column 10. The sensor 43 is used to send a low position signal to the controller after detecting that the lifting fork 21 has reached the predetermined minimum safe position. The controller then controls the elevator to stop moving downward via the lifting motor 30 to prevent the material cylinder from continuing to descend at the loading position.

[0050] By setting the lowest position sensor 43, the material cylinder can be prevented from continuing to descend at the loading position, thereby ensuring the reliability of the movement.

[0051] Similarly, in one embodiment, the elevator tilting feeding system further includes a highest position sensor 45 disposed on the elevator column 10 at a predetermined highest safe position above the unloading position sensor, for sending a high position signal to the controller when the lifting fork 21 is detected to have reached the predetermined highest safe position, and the controller controls the elevator to stop moving upward through the lifting motor 30.

[0052] That is, by using the highest position sensor 45, the barrel is prevented from rising further, thus improving the reliability of use.

[0053] In addition to setting the highest position sensor 45, a high position sensor 44 can also be set at its lower part to achieve early warning and improve response efficiency.

[0054] In addition to using sensors for limit detection, this application can also set up corresponding mechanical components, that is, after the lifting fork 21 reaches the designated position, the corresponding limit mechanical components will be automatically deployed, thereby improving the reliability of operation.

[0055] This application does not limit the types of the lowest position sensor 43 and the highest position sensor 45.

[0056] In this application, the height of the material cylinder is controlled by a lifting motor 30. The control structure is not limited. The lifting motor 30 can control the height of the material cylinder by a lifting rope installed on the lifting column 10, or by a column guide rail installed on the lifting column 10, or by other lifting components.

[0057] Because different motors operate in different ways in actual use, they require different power supply frequencies. Furthermore, even the same motor may require different frequencies under different conditions to meet different drive needs.

[0058] Therefore, in one embodiment, the elevator tilting feeding system further includes a frequency converter disposed between the controller and the lifting motor 30, the tilting motor 50, and the rotating motor 60, for converting the control signal of the controller into the drive signal of the lifting motor 30, the tilting motor 50, and the rotating motor 60. The controller is a PLC controller or a microcontroller controller, and is connected to the controller via an OPC UA interface. The controller is connected to the MES data acquisition module or the SCADA data acquisition module via the OPC UA interface to realize the acquisition of information from the material cylinder status detection device 20 and the position detection module 1.

[0059] By using a frequency converter, control signals and drive signals can be converted to meet different control needs, thereby improving the control efficiency of the motor.

[0060] This application does not limit the type of controller or the type of interface.

[0061] Since misoperation or foreign object entry may occur during actual material transfer, causing misoperation or material contamination, in order to solve this technical problem, in one embodiment, the elevator tilting feeding system further includes a safety light curtain device installed on the elevator column 10, used to detect whether a person or obstacle enters the detection range of the safety light curtain device within a specified range, and to send an alarm signal or a stop signal to the controller after detecting that a person or obstacle has entered the detection range of the safety light curtain device in the lifting area.

[0062] The safety light curtain device can detect in real time whether there are any foreign objects intruding within the defined detection range, ensuring the reliability of material transfer.

[0063] This application does not limit the location or detection range of the safety light curtain device; staff can install and configure it as needed.

[0064] To further improve ease of operation, in one embodiment, the elevator tilting feeding system also includes a touch screen connected to the controller, used to input the controller's control signals and control parameters, and to display the controller's output instructions.

[0065] The use of a touchscreen for parameter input and real-time display of system operation improves management efficiency.

[0066] This application does not limit the type of touchscreen; it can be an HMI touchscreen or other types of touchscreens.

[0067] In one embodiment, the state detection in the elevator tilting feeding system uses an inclination sensor, which is installed on the lifting fork 21, and left and right tilting position detection is installed on both sides of the tilting motor 50.

[0068] The elevator assembly includes a lifting motor 30, five position sensors on the elevator column 10, two sensors for left and right rotation, mechanical limit for left and right rotation, a rotation motor 60, a tilting motor 50 for left and right tilting, a lowest position sensor 43 to prevent the material cylinder from continuing to descend at the loading position, a loading position sensor for lifting the material cylinder, a discharge position sensor for docking with the equipment during material discharge, a high position sensor for controlling the left and right rotation and tilting of the elevator, and a highest position sensor 45 to prevent the high position sensor from continuing to rise.

[0069] The control system of the automatic tilting feeding system for the elevator is developed based on the ET200 PLC. It integrates multiple technologies such as computer technology, sensor detection technology, frequency converter and motor drive technology, and fieldbus technology. The system includes a material cylinder status detection, safety light curtain, position sensor, HMI touch screen, frequency converter, lifting / rotating motor 60, and tilting motor 50.

[0070] An AGV (Automated Guided Vehicle) transports the material cylinder to the loading position of the elevator. The elevator detects the cylinder's arrival and determines it is in a standard state. After confirming the cylinder's status, it lifts it to a high position, flips it into place, and rotates it to the docking device on the feeding side. After the left and right position sensors confirm its position, it descends to the valve position for automatic docking. Once docking is complete, the cylinder's unloading valve opens pneumatically. After unloading, the unloading valve closes, the elevator lifts it to a high position, flips it into place, rotates it to the other side, and descends to the loading position.

[0071] Before loading, the material cylinder is in the normal state by default; otherwise, it will not be able to connect with the lifting fork 21. Only after connection can the high position be flipped to the unloading state. After rotating into position, connection and unloading will take place. After unloading, the cylinder is lifted to the high position and then flipped back to the normal state. Rotating to the connection position will then lower the cylinder to wait for the next cycle.

[0072] The elevator tilting feeding system switches between manual and automatic control via an interface. Manual control involves manually adjusting the elevator's position based on information such as rise, fall, left rotation, right rotation, left tilt, and right tilt. The automatic control mode assumes the elevator is positioned left for loading and right for unloading. The elevator initially tilts left to the loading position, waiting for the material cylinder to reach its position. The tilt sensor on the lifting fork 21 detects 0 degrees, triggering an automatic operation signal. The elevator automatically rises to the high position sensor. Once the material cylinder reaches the high position sensor, it rotates to the loading position and then tilts to its final position. The right-side position sensor lowers the elevator, and the elevator descends to the unloading position sensor, performing a pneumatic unloading operation. After unloading, the elevator rises to the high position, tilts to its final position, rotates to the left rotation position sensor, and then descends to the loading position sensor to wait for the next cycle. During automatic operation, any abnormal phenomena or alarms triggered by the safety light curtain will cause the elevator to stop.

[0073] The completion of unloading can be determined by material level detection, which is convenient to install and is usually installed on the feed pipe. It is a switch signal.

[0074] The above technical solution has the following technical effects:

[0075] The following solutions are proposed for wet granulation machines: a lifting machine tilting feed system to reduce human intervention and achieve continuous production; pharmaceutical fluidized bed one-step granulation machines: a lifting machine tilting feed system to reduce human intervention and achieve continuous production; pharmaceutical tableting machines: a lifting machine tilting feed system to reduce human intervention and achieve continuous production; and pharmaceutical capsule machines: a lifting machine tilting feed system to reduce human intervention and achieve continuous capsule production.

[0076] OPC UA technology facilitates information compatibility between different systems, such as MES or SCADA data acquisition, providing a solution for intelligent material feeding in solid dosage form workshops.

[0077] The automatic feeding system of the elevator can realize automatic feeding of the elevator for wet granulation machines, one-step granulation machines for pharmaceutical fluidized beds, tableting machines, capsule machines, and dry granulation machines.

[0078] The OPC UA interface facilitates information compatibility between different systems, making it easier for elevators to be compatible with MES systems or other systems, and promoting the intelligent development of solid dosage form workshops.

[0079] In summary, the elevator tilting feeding system provided by this utility model embodiment detects the tilt angle of the lifting fork using a tilt sensor installed on the lifting fork and determines the state of the material cylinder based on the tilt angle. The lifting fork is then driven to move vertically by a lifting motor installed on the elevator column. A position detection module installed on the elevator column detects the position of the lifting fork, enabling the material cylinder with the lifting fork to be loaded at the loading position and unloaded at the unloading position. Loading and unloading are controlled by the tilting motor. The entire loading and unloading process is controlled by a controller, enabling automatic feeding of elevators for wet granulation machines, pharmaceutical fluidized bed one-step granulation machines, tablet presses, capsule machines, and dry granulation machines.

[0080] The above provides a detailed description of the elevator tilting feeding system provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A hoist tilting feeding system, characterized in that, include: A barrel condition detection device includes an inclination sensor installed on a lifting fork, the inclination sensor being used to detect the lifting fork inclination angle to determine the barrel condition; A lifting motor, mounted on the lifting machine column, is used to drive the lifting fork to move vertically. A position detection module is installed on the elevator column, including a loading position sensor installed at the loading position and a unloading position sensor installed at the unloading position. The loading position sensor is used to send a loading trigger signal after the lifting fork reaches the loading position, and the unloading position sensor is used to send a unloading trigger signal after the lifting fork reaches the unloading position. A flipping motor is installed on the lifting fork and is used to drive the lifting fork to flip in a vertical plane, thereby flipping the material cylinder installed on the lifting fork to complete the loading and unloading operations. The controller is connected to the barrel status detection device, the position detection module, the lifting motor, and the tilting motor, and is used to control the operation of the lifting motor and the tilting motor.

2. The elevator tilting feeding system according to claim 1, characterized in that, It also includes a rotary motor connected to the lifting fork and located at the loading or unloading position, used to control the lifting fork to rotate left or right in the horizontal plane.

3. The elevator tilting feeding system according to claim 1, characterized in that, It also includes a left rotation sensor located on the left side of the rotary motor and a right rotation sensor located on the right side, for detecting the rotation angle of the lifting fork.

4. The elevator tilting feeding system according to claim 3, characterized in that, It also includes left and right rotation mechanical limiters installed on the elevator column and located on both sides of the rotary motor, for limiting the left and right rotation angle of the lifting fork.

5. The elevator tilting feeding system according to claim 1, characterized in that, It also includes a minimum position sensor located at a predetermined minimum safe position below the loading position sensor on the elevator column. This sensor sends a low position signal to the controller after detecting that the lifting fork has reached the predetermined minimum safe position. The controller then controls the elevator to stop moving downward via the lifting motor, thereby preventing the material cylinder from continuing to descend at the loading position.

6. The elevator tilting feeding system according to claim 5, characterized in that, It also includes a highest position sensor located at a predetermined highest safe position above the unloading position sensor on the elevator column, which is used to send a high position signal to the controller when the lifting fork is detected to have reached the predetermined highest safe position, and the controller controls the elevator to stop moving upward through the lifting motor.

7. The elevator tilting feeding system according to claim 6, characterized in that, The lifting motor controls the height of the material cylinder via a lifting rope installed on the lifting column, or via a column guide rail installed on the lifting column.

8. The elevator tilting feeding system according to claim 1, characterized in that, It also includes a frequency converter disposed between the controller and the lifting motor, the tilting motor, and the rotating motor, for converting the control signal of the controller into the drive signal of the lifting motor, the tilting motor, and the rotating motor. The controller is a PLC controller or a microcontroller controller, and is connected to the controller via an OPC UA interface. The controller is connected to the MES data acquisition module or SCADA data acquisition module via the OPC UA interface to realize the acquisition of information from the barrel status detection device and the position detection module.

9. The elevator tilting feeding system according to claim 1, characterized in that, It also includes a safety light curtain device installed on the hoist column, used to detect whether a person or obstacle enters the detection range of the safety light curtain device within a specified range, and to send an alarm signal or a stop signal to the controller after detecting that a person or obstacle has entered the detection range of the safety light curtain device in the hoisting area.

10. The elevator tilting feeding system according to claim 1, characterized in that, It also includes a touch screen connected to the controller, used to input the controller's control signals and control parameters, and to display the controller's output commands.

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