A delivery speed control system based on anti-pinch finger control for vending machines

Abstract

The present invention discloses a delivery speed control system for preventing hand pinching based on a vending machine. The delivery outlet detection unit is used to detect whether there are obstacles at the delivery outlet, and if an obstacle is detected, the detection result is sent to the conveyor control unit; the conveyor control unit controls the delivery speed of the conveyor control unit according to the detection result and sends a speed control instruction to the delivery conveyor unit; the delivery conveyor unit adjusts the delivery speed according to the speed control instruction, and the goods are stably transmitted to the designated position according to the delivery speed adjustment. When no obstacle is detected, the goods are transported to the fixed position of the delivery outlet, and the goods fall to the delivery outlet. By monitoring and controlling the operating state and running time of the delivery outlet in real time, it not only ensures the normal delivery of goods, but also plays a role in preventing the pinching of hands or other obstacles, ensuring the safety, reliability and functional diversity of the vending machine, and making the vending machine work flexibly.

Description

Technical Field

[0001] The present invention relates to the technical field of speed control, and particularly to a shipment speed control system for preventing pinching hands based on a vending machine. Background Art

[0002] At present, after a customer purchases a commodity from a vending machine, a corresponding commodity is pushed out of a shelf by a shipment mechanism. The commodity pushed out of the shelf falls into a shipment opening at the lower end of a sales cabinet. At this time, a shipment device is required to push the commodity out of the shipment opening so as to facilitate a user to pick up the commodity. However, in the actual use process, some users put their hands into the shipment opening. Since the sales cabinet in the related art has no design for preventing pinching hands, it is very easy to pinch the hands stretching to the outlet of a goods channel during shipment, causing injuries.

[0003] The shipment opening of a common type of vending machine is usually arranged at the lowermost end of the whole machine, and goods reach the shipment opening in a free-fall manner. At the same time, there are potential hazards that the goods may be stuck or deformed or even damaged during the falling shipment process. To improve the interactive friendliness of the vending machine, it is necessary to further optimize the shipment mode of the vending machine.

[0004] In view of the problems in the related art that the sales cabinet has no design for preventing pinching hands, it is very easy to pinch the hands stretching to the outlet of the goods channel during shipment, causing injuries to the hands, the inconvenience for customers to pick up goods, and the potential hazards of damage to goods, etc., no effective solution has been proposed yet. Summary of the Invention

[0005] The present invention provides a shipment speed control system for preventing pinching hands based on a vending machine to solve the above problems existing in the prior art that after a customer purchases a commodity from a vending machine, a corresponding commodity is pushed out of a shelf by a shipment mechanism. The commodity pushed out of the shelf falls into a shipment opening at the lower end of a sales cabinet. At this time, a shipment device is required to push the commodity out of the shipment opening so as to facilitate a user to pick up the commodity. However, in the actual use process, some users put their hands into the shipment opening. Since the sales cabinet in the related art has no design for preventing pinching hands, it is very easy to pinch the hands stretching to the outlet of a goods channel during shipment, causing injuries. The shipment opening of a common type of vending machine is usually arranged at the lowermost end of the whole machine, and goods reach the shipment opening in a free-fall manner. At the same time, there are potential hazards that the goods may be stuck or deformed or even damaged during the falling shipment process. To improve the interactive friendliness of the vending machine, it is necessary to further optimize the shipment mode of the vending machine. In view of the problems in the related art that the sales cabinet has no design for preventing pinching hands, it is very easy to pinch the hands stretching to the outlet of the goods channel during shipment, causing injuries to the hands, the inconvenience for customers to pick up goods, and the potential hazards of damage to goods, etc., no effective solution has been proposed yet.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An out - going speed control system based on anti - pinching for vending machines, comprising: an out - going port detection unit, a transmission control unit, and an out - going transmission unit;

[0008] The out - going port detection unit is used to detect whether there are obstacles at the out - going port. If an obstacle is detected, the detection result is sent to the transmission control unit;

[0009] The transmission control unit controls the out - going speed of the transmission control unit according to the detection result, and sends a speed control instruction to the out - going transmission unit;

[0010] The out - going transmission unit adjusts the out - going speed according to the speed control instruction. The goods are stably transmitted to the specified position according to the out - going speed adjustment. When no obstacle is detected, the goods are transported to the fixed position of the out - going port, and the goods fall into the out - going port.

[0011] Among them, the out - going port detection unit includes: an anti - pinching infrared induction module and an out - going abnormal detection module;

[0012] The anti - pinching infrared induction module is used to detect whether there are customers approaching. The anti - pinching infrared induction module is connected to the lighting control module. If the anti - pinching infrared induction module detects that there are customers approaching, it sends an opening instruction to the lighting control module. The lighting control module controls the lighting to turn on. After the lighting is turned on, the anti - pinching infrared induction module detects whether the customers are picking up goods at the out - going port;

[0013] The out - going abnormal detection module is used to detect whether there are abnormal situations during the transmission of goods. The abnormal situation detection includes: whether the out - going motor is running normally, whether the goods are in normal contact in the material channel, and whether there is a situation of goods falling.

[0014] Among them, the transmission control unit includes: an out - going speed control module, a goods guiding control module, and an out - going port switch control module;

[0015] The out - going speed control module obtains speed data for ensuring the stable transmission of the current goods according to the basic information of the currently transmitted goods. The out - going speed control module controls the running speed of the out - going transmission unit to transmit the goods. After the running speed of the out - going transmission unit is adjusted to the speed data for ensuring the stable transmission of the current goods, the goods are stably transmitted to the out - going port along with the out - going transmission unit;

[0016] The goods guiding control module is used to guide the transmission of goods according to the current transmission state of the goods;

[0017] The out - going port switch control module is used to judge whether there are obstacles at the current out - going port according to the detection data of the anti - pinching infrared monitoring module. In the case of no obstacles, after the goods are taken out, it controls the out - going port door to close.

[0018] Among them, the shipping conveyor unit includes: a shipping execution mechanism, a shipping lifting mechanism, and a speed-changing mechanism;

[0019] The shipping execution mechanism is used to push the goods on the vending machine shelf onto the shipping lifting mechanism;

[0020] When shipping, the shipping lifting mechanism rises to the height corresponding to the position of the goods. The shipping execution mechanism pushes the goods onto the shipping lifting mechanism, and the shipping lifting mechanism drives the goods to be transported to the shipping outlet;

[0021] The speed-changing mechanism is used to regulate the running speeds of the shipping execution mechanism and the shipping lifting mechanism.

[0022] Among them, after the customer selects goods according to the demand, the conveyor control unit determines the position of the goods selected by the customer according to the order of the goods selected by the customer. After obtaining the position of the goods first selected by the customer, the conveyor control unit controls the shipping lifting mechanism to reach the height of the goods channel layer where the goods are first selected by lifting. The conveyor control unit controls the shipping execution mechanism to push the goods first selected onto the shipping lifting mechanism. After receiving the goods first selected, the shipping lifting mechanism reaches the first designated position of the shipping outlet by lifting. The conveyor control unit controls the shipping lifting mechanism to open the lower outlet, and the goods first selected fall from the shipping lifting mechanism into the shipping outlet. The conveyor control unit controls the shipping execution mechanism and the shipping lifting mechanism to sequentially transport the goods to the shipping outlet according to the order of the goods selected by the customer;

[0023] When the customer picks up the goods through the shipping outlet, the shipping speed control module controls the shipping lifting mechanism in operation to decelerate. When the shipping lifting mechanism reaches the second designated position of the shipping outlet, it pauses. If the customer takes out the goods at the shipping outlet, the conveyor control unit controls the shipping lifting mechanism to descend to the first designated position of the shipping outlet and then drop the corresponding goods.

[0024] Among them, the shipping lifting mechanism includes: a shipping motor;

[0025] During the operation of the shipping motor, the shipping abnormality detection module continuously detects the shipping motor signal and transmits the shipping motor signal to the conveyor control unit for processing. The conveyor control unit makes a judgment according to the shipping motor signal. If it is detected that the current value during the operation of the shipping motor exceeds the preset warning value of the shipping motor operating current, the shipping speed control module controls the start and stop of the motor and stops driving the motor.

[0026] Among them, the stroke feedback of the shipping lifting mechanism uses an infrared sensor. When the shipping motor rotates, a continuous pulse signal is received through the feedback detection circuit, and the running time and running distance of the shipping motor are calculated based on the number of received pulse signals;

[0027] Limit switches are installed at the highest and lowest points of the shipping lifting mechanism. When the infrared sensor that feeds back the stroke of the shipping lifting mechanism fails, the limit switch restricts the operation of the shipping motor.

[0028] Among them, when the transfer control unit receives a shipping command, the transfer control unit determines whether the self-check operation of the shipping device is completed. If the self-check is completed, the shipping motor is started. After the shipping motor is started, it is delayed for 0.6S. After the shipping motor rotates through the straight section of the microswitch device, the shipping lifting mechanism operates. The shipping anomaly detection module detects the position signal of the shipping motor. If the signal indicating reaching the specified position is detected, the operation of the shipping motor is stopped.

[0029] Among them, during shipping, the anti-pinch infrared sensing module is turned on, and the pin level signal of the anti-pinch infrared sensing module is detected in real time. If the detected signal is a high-level signal, it operates normally. When a customer reaches into the shipping outlet to pick up the goods, the light beam between the transmissive LED and the receiving tube of the anti-pinch infrared sensing module is blocked, and the infrared detection module outputs a low-level pulse. If the detected signal is a low-level signal, the shipping speed control module controls the shipping lifting mechanism to decelerate to the set safe speed.

[0030] Among them, the anti-pinch infrared sensing module performs a self-check operation before the shipping motor is started. Within the specified test time, it detects whether the output of the anti-pinch infrared sensing module is normal. If the anti-pinch infrared sensing module is normal, the infrared detection task is executed;

[0031] After the customer selects the goods, the host of the vending machine sends a shipping command frame to the transfer control unit. The shipping command frame includes the lane number, the shipping command serial number, and the lifting height of the elevator. The transfer control unit controls the operation of the shipping execution mechanism and the shipping lifting mechanism according to the received shipping command frame. When the goods reach the shipping outlet, the transfer control unit reports the shipping response result to the host of the vending machine. If the shipping result received by the host of the vending machine is 1, it indicates that the corresponding goods are shipped successfully. If the shipping result received by the host of the vending machine is 0, it indicates that the corresponding goods are shipped failed. After the shipping fails, the host of the vending machine continues to send a shipping command frame to the transfer control unit.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] An out - going speed control system based on anti - pinching for vending machines, comprising: an out - going port detection unit, a transmission control unit, and an out - going transmission unit; the out - going port detection unit is used to detect whether there are obstacles at the out - going port, and if an obstacle is detected, the detection result is sent to the transmission control unit; the transmission control unit controls the out - going speed of the transmission control unit according to the detection result and sends a speed control instruction to the out - going transmission unit; the out - going transmission unit adjusts the out - going speed according to the speed control instruction, and the goods are stably transmitted to the designated position according to the out - going speed adjustment. When no obstacle is detected, the goods are transported to the fixed position of the out - going port, and the goods fall to the out - going port. By real - time monitoring and controlling the operating state and operating time of the out - going port, it not only ensures the normal out - going of goods but also plays a role in preventing the pinching of hands or other obstacles, guaranteeing the safety, reliability, and functional diversity of the vending machine, and making the vending machine work flexibly.

[0034] Other features and advantages of the present invention will be described in the following specification, and, in part, will become obvious from the specification or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained by the structures specifically pointed out in the written specification, claims, and drawings.

[0035] The technical solutions of the present invention will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0036] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0037] Figure 1 It is a structural diagram of an out - going speed control system based on anti - pinching for vending machines in an embodiment of the present invention;

[0038] Figure 2 It is a flow chart of an out - going speed control system based on anti - pinching for vending machines in an embodiment of the present invention;

[0039] Figure 3 It is a structural diagram of the transmission control unit in an out - going speed control system based on anti - pinching for vending machines in an embodiment of the present invention. Detailed Embodiments

[0040] The following describes the preferred embodiments of the present invention with reference to the drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0041] The embodiment of the present invention provides an out - going speed control system based on anti - pinching for vending machines. Please refer to Figures 1 to 3, including: a shipping outlet detection unit, a conveyor control unit, and a shipping conveyor unit;

[0042] The shipping outlet detection unit is used to detect whether there is an obstacle at the shipping outlet. If an obstacle is detected, the detection result is sent to the conveyor control unit;

[0043] The conveyor control unit controls the shipping speed of the conveyor control unit according to the detection result and sends a speed control instruction to the shipping conveyor unit;

[0044] The shipping conveyor unit adjusts the shipping speed according to the speed control instruction. The goods are stably transported to the designated position according to the shipping speed adjustment. When no obstacle is detected, the goods are transported to the fixed position of the shipping outlet, and the goods fall into the shipping outlet.

[0045] The working principle of the above technical solution is: the shipping outlet detection unit is used to detect whether there is an obstacle at the shipping outlet. If an obstacle is detected, the detection result is sent to the conveyor control unit; the conveyor control unit controls the shipping speed of the conveyor control unit according to the detection result and sends a speed control instruction to the shipping conveyor unit; the shipping conveyor unit adjusts the shipping speed according to the speed control instruction. The goods are stably transported to the designated position according to the shipping speed adjustment. When no obstacle is detected, the goods are transported to the fixed position of the shipping outlet, and the goods fall into the shipping outlet. By monitoring and controlling the operating state and running time of the shipping outlet in real time, it not only ensures the normal shipping of goods but also prevents clamping of hands or other obstacles, guaranteeing the safety, reliability, and functional diversity of the vending machine, and making the vending machine work flexibly.

[0046] The beneficial effects of the above technical solution are: the shipping outlet detection unit is used to detect whether there is an obstacle at the shipping outlet. If an obstacle is detected, the detection result is sent to the conveyor control unit; the conveyor control unit controls the shipping speed of the conveyor control unit according to the detection result and sends a speed control instruction to the shipping conveyor unit; the shipping conveyor unit adjusts the shipping speed according to the speed control instruction. The goods are stably transported to the designated position according to the shipping speed adjustment. When no obstacle is detected, the goods are transported to the fixed position of the shipping outlet, and the goods fall into the shipping outlet. By monitoring and controlling the operating state and running time of the shipping outlet in real time, it not only ensures the normal shipping of goods but also prevents clamping of hands or other obstacles, guaranteeing the safety, reliability, and functional diversity of the vending machine, and making the vending machine work flexibly.

[0047] In another embodiment, the shipping outlet detection unit includes: an anti-pinch infrared sensing module and a shipping anomaly detection module;

[0048] The anti-pinch infrared induction module is used to detect whether there is a customer approaching. The anti-pinch infrared induction module is connected to the lighting control module. When the anti-pinch infrared induction module detects that a customer is approaching, it sends an opening instruction to the lighting control module, and the lighting control module controls the lighting to turn on. After the lighting is turned on, the anti-pinch infrared induction module detects whether the customer is picking up goods at the delivery outlet;

[0049] The abnormal delivery detection module is used to detect whether there are abnormal situations during the goods transmission process. The abnormal situation detection includes: whether the delivery motor is running normally, whether the goods are in normal contact in the chute, and whether there is a situation of goods falling.

[0050] The working principle of the above technical solution is: The anti-pinch infrared induction module is used to detect whether there is a customer approaching. The anti-pinch infrared induction module is connected to the lighting control module. When the anti-pinch infrared induction module detects that a customer is approaching, it sends an opening instruction to the lighting control module, and the lighting control module controls the lighting to turn on. After the lighting is turned on, the anti-pinch infrared induction module detects whether the customer is picking up goods at the delivery outlet; The abnormal delivery detection module is used to detect whether there are abnormal situations during the goods transmission process. The abnormal situation detection includes: whether the delivery motor is running normally, whether the goods are in normal contact in the chute, and whether there is a situation of goods falling.

[0051] The beneficial effects of the above technical solution are: The anti-pinch infrared induction module is used to detect whether there is a customer approaching. The anti-pinch infrared induction module is connected to the lighting control module. When the anti-pinch infrared induction module detects that a customer is approaching, it sends an opening instruction to the lighting control module, and the lighting control module controls the lighting to turn on. After the lighting is turned on, the anti-pinch infrared induction module detects whether the customer is picking up goods at the delivery outlet; The abnormal delivery detection module is used to detect whether there are abnormal situations during the goods transmission process. The abnormal situation detection includes: whether the delivery motor is running normally, whether the goods are in normal contact in the chute, and whether there is a situation of goods falling. Through the anti-pinch infrared induction module, it can effectively sense whether the customer picks up goods, thus effectively achieving the effect of preventing pinching. By using the abnormal delivery detection module to monitor the running state in real time, the effect of protecting the vending machine is achieved. When an abnormality is detected, the device can be stopped and an alarm can be triggered.

[0052] In another embodiment, the transmission control unit includes: a delivery speed control module, a goods guiding control module, and a delivery outlet switch control module;

[0053] The delivery speed control module obtains speed data for ensuring the stable transmission of the current goods according to the basic information of the current transmitted goods. The delivery speed control module controls the running speed of the delivery conveyor unit to transmit the goods. After adjusting the running speed of the delivery conveyor unit to the speed data for ensuring the stable transmission of the current goods, the goods are stably transmitted to the delivery outlet along with the delivery conveyor unit;

[0054] The goods guiding control module is used to guide and transmit the goods according to the current transmission state of the goods;

[0055] The outlet switch control module is used to judge whether there is an obstacle at the current outlet according to the detection data of the anti-pinch infrared monitoring module. When there is no obstacle, the outlet door is controlled to close after the goods are taken out.

[0056] The working principle of the above technical solution is as follows: The shipping speed control module obtains the speed data for ensuring the stable transmission of the current goods according to the basic information of the currently transmitted goods. The shipping speed control module controls the running speed of the shipping conveyor unit to transmit the goods. After adjusting the running speed of the shipping conveyor unit to the speed data for ensuring the stable transmission of the current goods, the goods are stably transmitted to the outlet along with the shipping conveyor unit; The goods guiding control module is used to guide and transmit the goods according to the current transmission state of the goods; The outlet switch control module is used to judge whether there is an obstacle at the current outlet according to the detection data of the anti-pinch infrared monitoring module. When there is no obstacle, the outlet door is controlled to close after the goods are taken out.

[0057] The beneficial effects of the above technical solution are as follows: The shipping speed control module obtains the speed data for ensuring the stable transmission of the current goods according to the basic information of the currently transmitted goods. The shipping speed control module controls the running speed of the shipping conveyor unit to transmit the goods. After adjusting the running speed of the shipping conveyor unit to the speed data for ensuring the stable transmission of the current goods, the goods are stably transmitted to the outlet along with the shipping conveyor unit; The goods guiding control module is used to guide and transmit the goods according to the current transmission state of the goods; The outlet switch control module is used to judge whether there is an obstacle at the current outlet according to the detection data of the anti-pinch infrared monitoring module. When there is no obstacle, the outlet door is controlled to close after the goods are taken out. By real-time monitoring and controlling the running state and operation time of the outlet, it not only ensures the normal shipment of goods, but also plays a role in preventing the clamping of hands or other obstacles, ensuring the safety, reliability and functional diversity of the vending machine, and making the vending machine work flexibly.

[0058] In another embodiment, the shipping conveyor unit includes: a shipping execution mechanism, a shipping lifting mechanism and a speed change mechanism;

[0059] The shipping execution mechanism is used to push the goods on the vending machine shelf onto the shipping lifting mechanism;

[0060] The shipping lifting mechanism is used to rise to the height corresponding to the position of the goods when shipping. The shipping execution mechanism pushes the goods onto the shipping lifting mechanism, and the shipping lifting mechanism drives the goods to be transmitted to the outlet;

[0061] The variable speed mechanism is used to regulate the running speeds of the goods delivery actuator and the goods delivery lifting mechanism.

[0062] The working principle of the above technical solution is as follows: The goods delivery actuator is used to push the goods on the vending machine shelf onto the goods delivery lifting mechanism; the goods delivery lifting mechanism is used to rise to the height corresponding to the position of the goods when delivering goods. The goods delivery actuator pushes the goods onto the goods delivery lifting mechanism, and the goods delivery lifting mechanism drives the goods to be transported to the delivery outlet; the variable speed mechanism is used to regulate the running speeds of the goods delivery actuator and the goods delivery lifting mechanism. Thus, the requirements for controlling the delivery of goods in the cargo channel are ensured.

[0063] The beneficial effects of the above technical solution are as follows: The goods delivery actuator is used to push the goods on the vending machine shelf onto the goods delivery lifting mechanism; the goods delivery lifting mechanism is used to rise to the height corresponding to the position of the goods when delivering goods. The goods delivery actuator pushes the goods onto the goods delivery lifting mechanism, and the goods delivery lifting mechanism drives the goods to be transported to the delivery outlet; the variable speed mechanism is used to regulate the running speeds of the goods delivery actuator and the goods delivery lifting mechanism. Thus, the requirements for controlling the delivery of goods in the cargo channel are ensured. The process of delivering goods is completed by the goods delivery actuator and the goods delivery lifting mechanism, improving the diversity of goods sold.

[0064] In another embodiment, when a customer selects goods according to their needs, the transfer control unit determines the position of the goods selected by the customer according to the order of the goods selected by the customer. After obtaining the position of the goods selected by the customer first, the transfer control unit controls the goods delivery lifting mechanism to reach the height of the cargo channel layer where the goods selected first are located by lifting. The transfer control unit controls the goods delivery actuator to push the goods selected first onto the goods delivery lifting mechanism. After receiving the goods selected first, the goods delivery lifting mechanism reaches the first designated position of the delivery outlet by lifting. The transfer control unit controls the goods delivery lifting mechanism to open the lower outlet, and the goods selected first fall from the goods delivery lifting mechanism to the delivery outlet. The transfer control unit controls the goods delivery actuator and the goods delivery lifting mechanism to sequentially transport the goods to the delivery outlet according to the order of the goods selected by the customer;

[0065] When a customer takes goods through the delivery outlet, the running speed of the goods delivery lifting mechanism during operation is controlled to decelerate by the delivery speed control module. When the goods delivery lifting mechanism reaches the second designated position of the delivery outlet, it pauses. If the customer takes out the goods at the delivery outlet, the transfer control unit controls the goods delivery lifting mechanism to descend to the first designated position of the delivery outlet and then drop the corresponding goods.

[0066] The working principle of the above technical solution is as follows: When a customer selects goods according to their needs, the conveyor control unit determines the location of the goods selected by the customer according to the order of the goods selected by the customer. After obtaining the location of the goods first selected by the customer, the conveyor control unit controls the shipping lifting mechanism to reach the height of the goods lane layer where the goods first selected by the customer are located by lifting. The conveyor control unit controls the shipping execution mechanism to push the goods first selected by the customer to the shipping lifting mechanism. After receiving the goods first selected by the customer, the shipping lifting mechanism reaches the first designated position of the shipping outlet by lifting. The conveyor control unit controls the shipping lifting mechanism to open the lower outlet, and the goods first selected by the customer fall from the shipping lifting mechanism to the shipping outlet. The conveyor control unit controls the shipping execution mechanism and the shipping lifting mechanism to sequentially convey the goods to the shipping outlet according to the order of the goods selected by the customer. When the customer picks up the goods through the shipping outlet, the shipping speed control module controls the shipping lifting mechanism in operation to decelerate. When the shipping lifting mechanism reaches the second designated position of the shipping outlet, it pauses. If the customer takes out the goods at the shipping outlet, the conveyor control unit controls the shipping lifting mechanism to descend to the first designated position of the shipping outlet and then drop the corresponding goods.

[0067] The beneficial effects of the above technical solution are as follows: When a customer selects goods according to their needs, the conveyor control unit determines the location of the goods selected by the customer according to the order of the goods selected by the customer. After obtaining the location of the goods first selected by the customer, the conveyor control unit controls the shipping lifting mechanism to reach the height of the goods lane layer where the goods first selected by the customer are located by lifting. The conveyor control unit controls the shipping execution mechanism to push the goods first selected by the customer to the shipping lifting mechanism. After receiving the goods first selected by the customer, the shipping lifting mechanism reaches the first designated position of the shipping outlet by lifting. The conveyor control unit controls the shipping lifting mechanism to open the lower outlet, and the goods first selected by the customer fall from the shipping lifting mechanism to the shipping outlet. The conveyor control unit controls the shipping execution mechanism and the shipping lifting mechanism to sequentially convey the goods to the shipping outlet according to the order of the goods selected by the customer. When the customer picks up the goods through the shipping outlet, the shipping speed control module controls the shipping lifting mechanism in operation to decelerate. When the shipping lifting mechanism reaches the second designated position of the shipping outlet, it pauses. If the customer takes out the goods at the shipping outlet, the conveyor control unit controls the shipping lifting mechanism to descend to the first designated position of the shipping outlet and then drop the corresponding goods. Thus, the stability during the goods transmission process is ensured, and damage to the goods caused by unstable goods transportation is prevented.

[0068] In another embodiment, the shipping lifting mechanism includes: a shipping motor;

[0069] During the operation of the shipping motor, the shipping anomaly detection module continuously detects the shipping motor signal, transmits the shipping motor signal to the transfer control unit for processing. The transfer control unit makes a judgment based on the shipping motor signal. If it detects that the current value during the operation of the shipping motor exceeds the preset warning value of the operating current of the shipping motor, the shipping speed control module controls the start and stop of the motor and stops driving the motor.

[0070] The working principle of the above technical solution is as follows: During the operation of the shipping motor, the shipping anomaly detection module continuously detects the shipping motor signal, transmits the shipping motor signal to the transfer control unit for processing. The transfer control unit makes a judgment based on the shipping motor signal. If it detects that the current value during the operation of the shipping motor exceeds the preset warning value of the operating current of the shipping motor, the shipping speed control module controls the start and stop of the motor and stops driving the motor.

[0071] The beneficial effect of the above technical solution is as follows: During the operation of the shipping motor, the shipping anomaly detection module continuously detects the shipping motor signal, transmits the shipping motor signal to the transfer control unit for processing. The transfer control unit makes a judgment based on the shipping motor signal. If it detects that the current value during the operation of the shipping motor exceeds the preset warning value of the operating current of the shipping motor, the shipping speed control module controls the start and stop of the motor and stops driving the motor. This ensures the requirements for shipping control of the goods channel and realizes the protection and status detection functions of the shipping motor.

[0072] In another embodiment, an infrared sensor is used for the stroke feedback of the shipping lifting mechanism. When the shipping motor rotates, a continuous pulse signal is received through a feedback detection circuit, and based on the number of received pulse signals, the running time and running distance of the shipping motor are calculated.

[0073] Limit switches are installed at the highest and lowest points of the shipping lifting mechanism. When the infrared sensor for feedback of the shipping lifting mechanism stroke fails, the limit switches limit the operation of the shipping motor.

[0074] The working principle of the above technical solution is as follows: An infrared sensor is used for the stroke feedback of the shipping lifting mechanism. When the shipping motor rotates, a continuous pulse signal is received through a feedback detection circuit, and based on the number of received pulse signals, the running time and running distance of the shipping motor are calculated. Limit switches are installed at the highest and lowest points of the shipping lifting mechanism. When the infrared sensor for feedback of the shipping lifting mechanism stroke fails, the limit switches limit the operation of the shipping motor. By installing the limit switches, the protection of the shipping lifting mechanism is achieved, preventing the shipping motor from getting out of control due to a failure of the stroke sensor.

[0075] The beneficial effects of the above technical solution are as follows: The stroke feedback of the shipping lifting mechanism uses an infrared sensor. When the shipping motor rotates, a continuous pulse signal is received through the feedback detection circuit. According to the number of received pulse signals, the running time and running distance of the shipping motor are calculated. Limit switches are installed at the highest and lowest points of the shipping lifting mechanism. When the infrared sensor for feedbacking the stroke of the shipping lifting mechanism fails, the limit switches restrict the operation of the shipping motor. The installation of the limit switches realizes the protection of the shipping lifting mechanism and prevents the shipping motor from getting out of control due to the failure of the stroke sensor.

[0076] In another embodiment, when the transfer control unit receives a shipping command, the transfer control unit determines whether the self-check operation of the shipping device is completed. If the self-check is completed, the shipping motor is started. After the shipping motor is started, it delays for 0.6S. After the shipping motor rotates through the straight section of the microswitch device, the shipping lifting mechanism operates. The shipping abnormality detection module detects the position signal of the shipping motor. If the signal indicating reaching the specified position is detected, the operation of the shipping motor is stopped.

[0077] The working principle of the above technical solution is as follows: When the transfer control unit receives a shipping command, the transfer control unit determines whether the self-check operation of the shipping device is completed. If the self-check is completed, the shipping motor is started. After the shipping motor is started, it delays for 0.6S. After the shipping motor rotates through the straight section of the microswitch device, the shipping lifting mechanism operates. The shipping abnormality detection module detects the position signal of the shipping motor. If the signal indicating reaching the specified position is detected, the operation of the shipping motor is stopped. During this process, the shipping outlet detection unit continuously detects whether there is a fault. If there is a fault, the transfer control unit stops the operation of the shipping motor.

[0078] The beneficial effects of the above technical solution are as follows: When the transfer control unit receives a shipping command, the transfer control unit determines whether the self-check operation of the shipping device is completed. If the self-check is completed, the shipping motor is started. After the shipping motor is started, it delays for 0.6S. After the shipping motor rotates through the straight section of the microswitch device, the shipping lifting mechanism operates. The shipping abnormality detection module detects the position signal of the shipping motor. If the signal indicating reaching the specified position is detected, the operation of the shipping motor is stopped. During this process, the shipping outlet detection unit continuously detects whether there is a fault. If there is a fault, the transfer control unit stops the operation of the shipping motor.

[0079] In another embodiment, during shipping, the anti-pinch infrared induction module is turned on, and the pin level signal of the anti-pinch infrared induction module is continuously detected. If the detected signal is a high-level signal, it operates normally. When a customer reaches into the shipping outlet to pick up the goods, the light beam between the transmissive photodiode and the receiving tube of the anti-pinch infrared induction module is blocked. The infrared detection module outputs a low-level pulse. If the detected signal is a low-level signal, the shipping speed control module controls the shipping lifting mechanism to decelerate to the set safe speed.

[0080] The working principle of the above technical solution is as follows: When shipping, the anti-pinch infrared sensing module is turned on to detect the pin level signal of the anti-pinch infrared sensing module in real time. If a high-level signal is detected, it operates normally. When a customer reaches into the shipping outlet to pick up the goods, the light beam between the opposed light-emitting diode and the receiving tube of the anti-pinch infrared sensing module is blocked, and the infrared detection module outputs a low-level pulse. If a low-level signal is detected, the shipping speed control module controls the shipping lifting mechanism to decelerate to the set safe speed.

[0081] The beneficial effects of the above technical solution are as follows: When shipping, the anti-pinch infrared sensing module is turned on to detect the pin level signal of the anti-pinch infrared sensing module in real time. If a high-level signal is detected, it operates normally. When a customer reaches into the shipping outlet to pick up the goods, the light beam between the opposed light-emitting diode and the receiving tube of the anti-pinch infrared sensing module is blocked, and the infrared detection module outputs a low-level pulse. If a low-level signal is detected, the shipping speed control module controls the shipping lifting mechanism to decelerate to the set safe speed. This avoids the situation of pinching hands during the shipping process.

[0082] In another embodiment, the anti-pinch infrared sensing module performs a self-check operation before the shipping motor starts. Within the specified test time, it detects whether the output of the anti-pinch infrared sensing module is normal. If the anti-pinch infrared sensing module is normal, it performs the infrared detection task;

[0083] After the customer selects the goods, the host of the vending machine sends a shipping command frame to the transfer control unit. The shipping command frame includes the lane number, the shipping command serial number, and the rising height of the elevator. The transfer control unit controls the shipping execution mechanism and the shipping lifting mechanism to operate according to the received shipping command frame. When the goods reach the shipping outlet, the transfer control unit reports the shipping response result to the host of the vending machine. If the shipping result received by the host of the vending machine is 1, it indicates that the corresponding goods are shipped successfully. If the shipping result received by the host of the vending machine is 0, it indicates that the corresponding goods are shipped failed. After the shipping fails, the host of the vending machine continues to send a shipping command frame to the transfer control unit.

[0084] The working principle of the above technical solution is as follows: The anti-pinch infrared induction module performs a self-check operation before the shipment motor starts. Within the specified test time, it detects whether the output of the anti-pinch infrared induction module is normal. If the anti-pinch infrared induction module is normal, it performs the infrared detection task. After the customer selects the goods, the host of the vending machine sends a shipment command frame to the transmission control unit. The shipment command frame includes the lane number, the shipment command serial number, and the lifting height of the elevator. The transmission control unit controls the operation of the shipment execution mechanism and the shipment lifting mechanism according to the received shipment command frame. When the goods reach the shipment outlet, the transmission control unit reports the shipment response result to the host of the vending machine. If the shipment result received by the host of the vending machine is 1, it indicates that the corresponding goods are shipped successfully. If the shipment result received by the host of the vending machine is 0, it indicates that the corresponding goods are shipped failed. After the shipment fails, the host of the vending machine continues to send the shipment command frame to the transmission control unit.

[0085] The beneficial effects of the above technical solution are as follows: The anti-pinch infrared induction module performs a self-check operation before the shipment motor starts. Within the specified test time, it detects whether the output of the anti-pinch infrared induction module is normal. If the anti-pinch infrared induction module is normal, it performs the infrared detection task. After the customer selects the goods, the host of the vending machine sends a shipment command frame to the transmission control unit. The shipment command frame includes the lane number, the shipment command serial number, and the lifting height of the elevator. The transmission control unit controls the operation of the shipment execution mechanism and the shipment lifting mechanism according to the received shipment command frame. When the goods reach the shipment outlet, the transmission control unit reports the shipment response result to the host of the vending machine. If the shipment result received by the host of the vending machine is 1, it indicates that the corresponding goods are shipped successfully. If the shipment result received by the host of the vending machine is 0, it indicates that the corresponding goods are shipped failed. After the shipment fails, the host of the vending machine continues to send the shipment command frame to the transmission control unit. Thus, it ensures the requirements for the shipment control of the shipment motor in the lane by the transmission control unit.

[0086] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. An out - going speed control system based on anti - pinching for vending machines, characterized in that, Including: A shipping outlet detection unit, a conveyor control unit, and a shipping conveyor unit; The shipping outlet detection unit is used to detect whether there are obstacles at the shipping outlet, and if an obstacle is detected, the detection result is sent to the conveyor control unit; The conveyor control unit controls the shipping speed of the conveyor control unit according to the detection result and sends a speed control instruction to the shipping conveyor unit; The shipping conveyor unit adjusts the shipping speed according to the speed control instruction, and the goods are stably transported to the designated position according to the shipping speed adjustment. When no obstacle is detected, the goods are transported to the fixed position of the shipping outlet, and the goods fall into the shipping outlet; The shipping conveyor unit includes: a shipping execution mechanism, a shipping lifting mechanism, and a speed change mechanism; The shipping execution mechanism is used to push the goods on the vending machine shelf onto the shipping lifting mechanism; The shipping lifting mechanism is used to rise to the height corresponding to the position of the goods during shipping. The shipping execution mechanism pushes the goods onto the shipping lifting mechanism, and the shipping lifting mechanism drives the goods to be transported to the shipping outlet; The speed change mechanism is used to adjust the running speeds of the shipping execution mechanism and the shipping lifting mechanism; After the customer selects the goods according to the demand, the conveyor control unit judges the position of the goods selected by the customer according to the order of the goods selected by the customer. After obtaining the position of the goods selected by the customer first, the conveyor control unit controls the shipping lifting mechanism to reach the height of the goods lane layer where the goods selected first are located by lifting. The conveyor control unit controls the shipping execution mechanism to push the goods selected first onto the shipping lifting mechanism. After receiving the goods selected first, the shipping lifting mechanism reaches the first designated position of the shipping outlet by lifting. The conveyor control unit controls the shipping lifting mechanism to open the lower outlet, and the goods selected first fall from the shipping lifting mechanism into the shipping outlet. The conveyor control unit controls the shipping execution mechanism and the shipping lifting mechanism to convey the goods to the shipping outlet in sequence according to the order of the goods selected by the customer; When the customer picks up the goods through the shipping outlet, the shipping lifting mechanism during operation is controlled to decelerate by the shipping speed control module. When the shipping lifting mechanism reaches the second designated position of the shipping outlet, it pauses. If the customer takes out the goods at the shipping outlet, the conveyor control unit controls the shipping lifting mechanism to descend to the first designated position of the shipping outlet and then drop the corresponding goods.

2. The shipment speed control system for preventing finger pinching based on a vending machine according to claim 1, wherein The shipping outlet detection unit includes: an anti-pinch infrared induction module and a shipping abnormality detection module; The anti-pinch infrared induction module is used to detect whether there is a customer approaching. The anti-pinch infrared induction module is connected to the lighting control module. If the anti-pinch infrared induction module detects that a customer is approaching, it sends an opening instruction to the lighting control module, and the lighting control module controls the lighting to turn on. After the lighting is turned on, the anti-pinch infrared induction module detects whether the customer is picking up goods at the shipping outlet; The shipping abnormality detection module is used to detect whether there are abnormal situations during the transmission of the goods. The abnormal situation detection includes: whether the shipping motor is running normally, whether the goods are in normal contact in the goods lane, and whether there is a situation of goods falling.

3. The shipment speed control system based on anti-pinch for vending machines according to claim 1, wherein The transfer control unit includes: a shipping speed control module, a goods guiding control module, and a shipping port switch control module; The shipping speed control module obtains speed data for ensuring the stable transmission of the current goods based on the basic information of the currently transmitted goods. The shipping speed control module controls the running speed of the shipping transfer unit to transmit the goods. After adjusting the running speed of the shipping transfer unit to the speed data for ensuring the stable transmission of the current goods, the goods are stably transmitted to the shipping port along with the shipping transfer unit; The goods guiding control module is used to guide the transmission of the goods according to the transmission state of the current goods; The shipping port switch control module is used to judge whether there is an obstacle at the current shipping port according to the detection data of the anti-pinch infrared sensor module. When there is no obstacle, after the goods are taken out, it controls the shipping port door to close.

4. The shipment speed control system based on anti-pinch for vending machines according to claim 1, wherein, The shipping lifting mechanism includes: a shipping motor; During the operation of the shipping motor, the shipping abnormality detection module detects the shipping motor signal in real time and transmits the shipping motor signal to the transfer control unit for processing. The transfer control unit makes a judgment according to the shipping motor signal. If it is detected that the current value during the operation of the shipping motor exceeds the preset warning value of the running current of the shipping motor, the shipping speed control module will control the start and stop of the motor and stop driving the motor.

5. The shipping speed control system based on anti-pinch of a vending machine according to claim 4, characterized in that The travel feedback of the shipping lifting mechanism uses an infrared sensor. When the shipping motor rotates, a continuous pulse signal is received through the feedback detection circuit, and based on the number of received pulse signals, the running time and running distance of the shipping motor are calculated; Limit switches are installed at the highest and lowest points of the shipping lifting mechanism. When the infrared sensor for feedbacking the travel of the shipping lifting mechanism fails, the limit switches limit the operation of the shipping motor.

6. The shipment speed control system based on anti-pinch for vending machines according to claim 5, wherein When the transfer control unit receives a shipping command, the transfer control unit judges whether the self-check operation of the shipping device is completed. If the self-check is completed, the shipping motor is started. After the shipping motor is started, it delays for 0.6S. After the shipping motor turns through the straight section of the microswitch device, the shipping lifting mechanism operates. The shipping abnormality detection module detects the position signal of the shipping motor. If the signal indicating reaching the specified position is detected, the operation of the shipping motor is stopped.

7. A delivery speed control system for preventing pinching of hands based on a vending machine according to claim 2, characterized in that, During shipping, the anti-pinch infrared sensor module is turned on to detect the pin level signal of the anti-pinch infrared sensor module in real time. If the detected signal is a high level signal, it operates normally. When a customer reaches into the shipping port to pick up the goods, the light beam between the transmissive light emitting diode and the receiving tube of the anti-pinch infrared sensor module is blocked, and the infrared detection module outputs a low level pulse. If the detected signal is a low level signal, the shipping speed control module controls the shipping lifting mechanism to decelerate to the set safe speed.

8. The shipment speed control system based on anti-pinch for vending machines according to claim 7, characterized in that, The anti-pinch infrared sensor module performs a self-check operation before the shipping motor is started. Within the specified test time, it detects whether the output of the anti-pinch infrared sensor module is normal. If the anti-pinch infrared sensor module is normal, it performs the infrared detection task; After a customer selects and purchases goods, the main unit of the vending machine sends a shipment command frame to the transfer control unit. The shipment command frame includes the lane number, the shipment command serial number, and the lifting height of the elevator. The transfer control unit controls the operation of the shipment execution mechanism and the shipment lifting mechanism according to the received shipment command frame. When the goods reach the shipment outlet, the transfer control unit reports the shipment response result to the main unit of the vending machine. If the shipment result received by the main unit of the vending machine is 1, it indicates that the corresponding goods are successfully shipped. If the shipment result received by the main unit of the vending machine is 0, it indicates that the corresponding goods are shipped unsuccessfully. After the shipment fails, the main unit of the vending machine continues to send a shipment command frame to the transfer control unit.

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