A hanging pipeline control method and a hanging system

Abstract

The application provides a hanging pipeline control method and a hanging system. When outbound control is performed, the situation of the hangers pushed by a push rod and the situation of the hangers in the working station that need to enter the working station are compared and judged to control the outbound of the hangers in the working station. One push rod can push multiple hangers, which breaks through the limitation of the prior art that one push rod can only push one hanger and avoids the limitation of double hangers, improves the conveying effect, and meets the large-flow production demand.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of hanging conveying line, and particularly relates to a hanging assembly line clothes hanger entry and exit station control method and a hanging system. BACKGROUND

[0002] In recent years, the emergence of clothing and home textile hanging assembly line has completely changed the traditional production mode, realized the automatic control of the processing process, improved the production efficiency, and facilitated the production management.

[0003] CN2012101647838 discloses a distributed control method for rack entry and exit station. The intelligent production hanging system comprises a main computer, a main rail, at least two workstations, a driving mechanism, a rack, a workstation, an entry station card reader, an exit station card reader, a terminal data interactor, a communication data controller, an entry station execution mechanism, an exit station execution mechanism, a control button, a support rail, a release mechanism, and a lifting mechanism. The upper portion of the main rail is provided with push rods distributed at a certain interval. The push rods drive the racks on the main rail to run in a specified direction under the drive of the driving mechanism. When the rack enters the workstation D and needs to exit after completing the processing operation, the entry station card reader of the workstation D provides the push rod and rack information passing through the workstation D to the communication data controller. The communication data controller judges whether the push rod at the exit station after passing through the workstation D is empty according to the above information. When the push rod is empty, the exit station execution mechanism of the workstation D sends the processed rack to the exit station. The support rail entry station end and the processing position are the storage area of the racks to be processed. The specific condition for the communication data controller to execute the entry operation of the rack is that the main computer allocates the workstations to which the rack should enter as the specific workstation D, and the rack storage area of the specific workstation D is not full.

[0004] CN2019107525056 discloses "A suspended production line and control method," mainly including a main computer, a main rail, at least two workstations, a drive mechanism, and clothes hangers. The workstations are distributed outside the main rail. A rack is installed above the main rail, and several push rods are evenly spaced at the lower end of the rack. The drive mechanism drives the rack, and the push rods, driven by the rack, push the clothes hangers on the main rail to move in a specified direction. RFID chips are installed on both the push rods and the clothes hangers. Each production line has an encoder, which can be integrated into the drive mechanism or installed separately. Control software is installed in the main computer. Each workstation includes an inbound card reader, an outbound card reader, an inbound actuator, an outbound actuator, a lifting button, an inbound support rail, an outbound support rail, a release mechanism, and a lifting mechanism. The inbound and outbound actuators can connect or disconnect the main rail from the inbound and outbound branch rails, respectively. An inbound card reader is installed in front of the inbound entrance, and a stop mechanism is installed on the outbound branch rail, with an outbound card reader installed at the corresponding position on the stop mechanism. When a processed hanger at the workstation needs to leave the station, the lifting button is pressed. The main computer controls the lifting mechanism to lift the hanger to the outbound branch rail, where it waits for exit at the stop mechanism. After the outbound card reader reads the hanger's signal, it sends an exit request to the main computer. The main computer checks if there is an empty push rod passing through the main rail; if so, it controls the hanger to exit the station. To determine whether a push rod is empty, either of the following two conditions must be met: (1) If the card reader at the station reads the information of the second push rod but does not read the information of the hanger during this process, then the push rod read the second time is considered an empty push rod; (2) If the card reader at the station reads the information of the second push rod but reads the information of the hanger during this process, but the hanger is assigned to the workstation, then the push rod read the second time is also considered an empty push rod.

[0005] The above control methods are all for the entry and exit control when a push rod pushes a clothes hanger. Summary of the Invention

[0006] This application provides a hanging production line control method that breaks through the limitations of existing technologies where one pusher can only push one hanger and strives to avoid double hangers. It adopts a method of pushing more than one hanger at a time, thereby improving the conveying effect and meeting the needs of high-volume production.

[0007] The suspended assembly line control method provided in this application includes the following outgoing control:

[0008] The number of hangers between the two push rods of the card reader at the current workstation is n1, and the maximum number of hangers driven by one push rod is N, where N>1;

[0009] If 0 < n1 < N and the hanger does not need to enter the current station, the single release mechanism of the current station releases n2 hangers in turn to the batch release mechanism, the required entry stations of the n2 hangers are all the same as the required entry stations of the hangers between the two push rods, until n2 = N - n1 or the currently first-in-line hanger waiting to exit at the single release mechanism is different from the required entry station of the hangers between the two push rods;

[0010] If the hanger needs to enter the current station or n1 = 0, the single release mechanism of the current station releases n2 hangers in turn to the batch release mechanism, the required entry stations of the n2 hangers are all the same, until n2 = N or the currently first-in-line hanger waiting to exit at the single release mechanism is different from the required entry station of the hangers at the batch release mechanism;

[0011] The batch release mechanism releases all the hangers at the batch release mechanism to enter between the two push rods.

[0012] Preferably, for the case of 0 < n1 < N and the hanger does not need to enter the current station:

[0013] It is judged whether the required entry station of the hangers between the two push rods is the same as the required entry station of the currently first-in-line hanger waiting to exit at the single release mechanism of the current station, if the same, the single release mechanism releases the hangers to the batch release mechanism, and so on, until the number n2 of the hangers released by the single release mechanism is N - n1 or the required entry station of the hangers between the two push rods is different from the required entry station of the currently first-in-line hanger waiting to exit at the single release mechanism;

[0014] Or, it is judged whether there are n2 hangers at the single release mechanism of the current station whose required entry stations are the same as the required entry station of the hangers between the two push rods, if yes, the single release mechanism releases the n2 hangers to the batch release mechanism.

[0015] Preferably, for the case of the hanger needs to enter the current station or n1 = 0:

[0016] After the single release mechanism releases the first-in-line hanger to the batch release mechanism, it is judged whether the required entry station of the currently first-in-line hanger is the same as the required entry station of the hangers at the batch release mechanism, if the same, the single release mechanism releases the hangers to the batch release mechanism, and so on, until the number n2 of the hangers released by the single release mechanism is N - n1 or the required entry station of the currently first-in-line hanger waiting to exit at the single release mechanism is different from the required entry station of the hangers at the batch release mechanism;

[0017] Or, if there are n2 hangers that need to enter the same work station in succession at the single release mechanism, the single release mechanism releases n2 hangers to the batch release mechanism.

[0018] Preferably, the timing starts from the identification of the second push rod in the two push rods, and reaches the first set value T, when the first set value T satisfies T1-T2-T4<T<T1-T3-T4, all the hangers released by the batch release mechanism can enter between the two push rods, wherein T1 is the time for the push rod to run from the entry card reader to the exit port, T2 is the time for the push rod to move one push rod interval, T3 is the time for the push rod to move N hangers arranged together, and T4 is the time for the first hanger in front to move from the batch release mechanism to the exit port.

[0019] Preferably, it further comprises entry control: if the hanger needs to enter the current work station, the entry control mechanism is connected with the main rail, and after the hanger enters the current work station, the entry control mechanism is disconnected from the main rail.

[0020] Preferably, before the entry control mechanism is connected with the main rail, it is judged whether the current work station is full, if it is full, the hanger does not enter the current work station, and the exit control is not performed.

[0021] The application also provides a hanging system, comprising a hanging assembly line and a control system, the hanging assembly line comprises a main rail, a push rod and a plurality of work stations, an entry card reader is arranged upstream of the entry port, the work stations are provided with a single release mechanism and a batch release mechanism, and an exit card reader is arranged at the single release mechanism;

[0022] The entry card reader is used to read the information of the push rod and the hanger and upload it to the control system;

[0023] The exit card reader is used to read the information of the hanger at the single release mechanism and upload it to the control system;

[0024] The control system is used to allocate the required entry work station for the hanger according to the hanger information uploaded by the exit card reader;

[0025] If 0 < n1 < N and the hangers between the two push rods do not enter the current working station, the control system controls the single release mechanism of the current working station to release n2 hangers in turn to the batch release mechanism, the working stations required to be entered by the n2 hangers are all the same as the working stations required to be entered by the hangers between the two push rods, until n2 = N-n1 or the hanger currently in the front of the single release mechanism waiting to exit is different from the working station required to be entered by the hangers between the two push rods, wherein 0≤n2≤N-n1; if the hangers need to enter the current working station or n1 = 0, the single release mechanism of the current working station releases n2 hangers in turn to the batch release mechanism, the working stations required to be entered by the n2 hangers are all the same, until n2 = N or the hanger currently in the front of the single release mechanism waiting to exit is different from the working station required to be entered by the hangers at the batch release mechanism;

[0026] The control system controls the batch release mechanism to release all the hangers at the batch release mechanism to enter between the two push rods; wherein n1 is the number of hangers between the two push rods passing through the entrance card reader of the current working station, N is the maximum number of hangers driven by one push rod, N > 1.

[0027] Preferably, if the control system judges that 0 < n1 < N and the hangers do not enter the current working station, the control system judges whether the working station required to be entered by the hangers between the two push rods is the same as the working station required to be entered by the hanger currently in the front of the single release mechanism of the current working station waiting to exit, if the same, the single release mechanism releases the hangers to the batch release mechanism, and so on, until the number of hangers released by the single release mechanism n2 = N-n1, or the working station required to be entered by the hangers between the two push rods is different from the working station required to be entered by the hanger currently in the front of the single release mechanism waiting to exit.

[0028] Alternatively, the control system judges whether there are n2 hangers in the single release mechanism of the current working station, the working stations required to be entered by the n2 hangers are all the same as the working station required to be entered by the hangers between the two push rods, if there are, the single release mechanism releases n2 hangers to the batch release mechanism.

[0029] Preferably, if the control system determines that the hangers need to enter the current working station or n1=0, the control system controls the single release mechanism to release the hangers at the front to the batch release mechanism, and then determines whether the hangers currently at the front and the hangers at the batch release mechanism need to enter the same working station, if yes, the control system controls the single release mechanism to release the hangers to the batch release mechanism, and so on until the number of hangers n2=N-n1 released by the single release mechanism or the hangers currently at the front of the single release mechanism waiting to exit are different from the hangers at the batch release mechanism in the working station needed to enter.

[0030] Alternatively, the control system determines whether there are hangers with the same working station needed to enter for n2 consecutive times at the single release mechanism, and if yes, controls the single release mechanism to release n2 hangers to the batch release mechanism.

[0031] Preferably, the control system is further configured to start timing from the second push rod in the two push rods, and when the first set value T reaches T1-T2-T4<T<T1-T3-T4, all the hangers released by the batch release mechanism can enter between the two push rods, wherein T1 is the time for the push rod to run from the entrance card reader to the exit, T2 is the time for the push rod to move one push rod interval, T3 is the time for the push rod to move N hangers arranged together, and T4 is the time for the first hanger at the front to move from the batch release mechanism to the exit.

[0032] Preferably, if the control system determines that the hangers between the two push rods need to enter the current working station, the control system controls the entrance execution mechanism of the current working station to be connected with the main rail, and after the hangers enter the current working station, the control system controls the entrance execution mechanism to be disconnected with the main rail.

[0033] Preferably, the input end of the working station is provided with a full detection device for detecting whether the entrance rail of the working station is full of hangers, if yes, the control system does not send the instruction of connecting the entrance execution mechanism with the main rail, and does not send the release instruction to the batch release mechanism.

[0034] The existing hanging assembly line pushes one hanger with one push rod, and tries to avoid double hangers in the control method and structural design. When the flow of the hanging assembly line is large, the design will cause the hanging assembly line to be blocked, and the conveying efficiency of the assembly line is greatly reduced. The application realizes that one push rod pushes multiple hangers, thereby further improving the conveying effect and meeting the demand of large flow production, and breaking through the industry technology cognition. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a topological structure diagram of the hanging assembly line of the application.

[0036] Figure 2 is a schematic diagram of the topology of the in-station and out-station support rails of the workstation of the present application. DETAILED DESCRIPTION

[0037] As shown in Figure 1 , 2 The hanging system provided by the present application comprises at least one hanging assembly line, Figure 1 Two hanging assembly lines are shown. The hanging assembly line comprises a hanger main rail 2, at least two workstations 3 (including sewing stations, preparation stations, bridging stations, etc.), a driving mechanism 4. The hanger 5 is driven by a push rod to move on the hanger main rail 2. The workstations 3 are distributed on the outer side of the hanger main rail 2, and a rack 7 (which can also be a chain) is arranged above the hanger main rail 2, the lower end of the rack 7 is equidistantly provided with a plurality of push rods 6, the driving mechanism 4 drives the rack 7, and the push rod 6 pushes the hanger 5 on the hanger main rail 2 to move in the designated direction under the driving of the rack 7. The push rod 6 and the hanger 5 are both provided with an identification device, such as an RFID chip, a two-dimensional code, a bar code, etc. Each assembly line is provided with an encoder 8, which can be provided by the driving mechanism 4 or additionally installed. The two hanging assembly lines are connected through the workstations 3 (which can also be called bridging stations), and the two hanging assembly lines can also be connected through a bridging line. The main computer 1 is provided with control software. When there are multiple hanging assembly lines, all the hanging assembly lines are connected to one main computer 1 or connected to one main computer 1 through a line computer.

[0038] As shown in Figure 2As shown, the workstation 3 includes an inbound branch rail 307 and an outbound branch rail 308. The input end of the inbound branch rail 307 is provided with an inbound actuator 305, which can be connected to or separated from the hanger main rail 2. A fullness detection device 311 is installed near the input end of the inbound branch rail 307, which is used to detect whether the hangers stored in the inbound branch rail are full. The fullness detection device 311 continuously triggers a signal, which represents that the inbound branch rail is full. An inbound card reader 301 is installed upstream of the inbound port. The output end of the outbound branch rail 308 is provided with an outbound swing head 306, which can send the hangers at the output end of the outbound branch rail 308 into the main rail 2. A batch release mechanism 309 is installed near the outbound swing head of the outbound branch rail 308. Upstream of the batch release mechanism 309, a single release mechanism 310 is installed on the outbound branch rail 308, and one side of the single release mechanism 310 is provided with an outbound card reader 302. Each workstation is also provided with a communication data controller 304, and the inbound actuator 305, the inbound card reader 301, the outbound card reader 302, the batch release mechanism 309, and the single release mechanism 310 are connected to the communication data controller 304, which is connected to the main computer 1. In order to prevent the hangers from being pushed forward when entering or leaving the port, a deceleration zone 303 can be installed upstream of the inbound port and the outbound port of the hanger main rail 2. The communication data controller, the main computer, the line computer, and the like constitute a control system, which controls the operation of the hanging assembly line.

[0039] The maximum number of hangers that can be stored between two push rods is set to N, N > 1, and one push rod can push 1 to N hangers to run along the main rail 2. The hangers pushed between the two push rods must enter the same workstation. The inbound card reader 301 can read the information of the push rod 6 (such as the push rod number), thereby determining the position of the push rod.

[0040] Hanger outbound control:

[0041] (1) The hangers in the current workstation 3 that run to the outbound branch rail 308 are blocked by the single release mechanism 310, and are arranged in sequence upstream of the single release mechanism 310. The outbound card reader 302 on one side of the single release mechanism 310 reads the information of the hanger arranged at the frontmost position, and sends an outbound request to the main computer 1 through the communication data controller 304. After receiving the information, the main computer 1 allocates the hanger to the appropriate workstation according to the task balance or the set allocation rules of the next process.

[0042] (2) The in-station card reader 301 of the workstation sends the information of the passing push rod and hanger on the hanger main rail to the host computer. When the host computer judges the hangers between the two push rods according to the information sent by the in-station card reader 301, if the number of hangers n1 between the two push rods is greater than 0 and less than N, and the hangers between the two push rods do not enter the current workstation, step (3) is performed; if the in-station card reader 301 does not read the hangers between the two push rods (i.e. n1 = 0) or the hangers between the two push rods need to enter the current workstation (i.e. n1 = 0 after entering the station), step (6) is performed.

[0043] (3) The host computer judges whether the assigned workstations of the hangers between the two push rods and the hanger currently at the front of the single release mechanism are the same. If not, the single release mechanism does not release the hangers, and no hangers enter the main rail. At this time, the next round of out-station control is entered, and the hangers pushed by the next push rod are waited for, judged and controlled. If they are the same, step (4) is performed.

[0044] (4) The single release mechanism 310 releases the hanger at the front to the batch release mechanism 309. The release action of the single release mechanism 310 can be controlled by the host computer 1 sending an out-station command to the communication data controller 304, or directly controlled by the host computer 1. The second hanger next to it becomes the hanger at the front and is blocked by the single release mechanism 310. The out-station card reader 302 sends the information of the hanger to the host computer 1 through the communication data controller 304, and the host computer assigns the hanger to the assigned workstation.

[0045] (5) The host computer judges whether the assigned workstations of the hanger currently at the front of the single release mechanism and the hangers between the two push rods are the same. If not, step (8) is performed. If they are the same, the host computer judges whether the sum of the number of hangers n2 released by the single release mechanism 310 and the number of hangers n1 between the two push rods is equal to N. If it is equal to N, step (8) is performed. If it is not equal to N, step (4) is performed.

[0046] (6) The single release mechanism 310 releases the hanger at the front to the batch release mechanism 309. The release action of the single release mechanism 310 can be controlled by the host computer 1 sending an out-station command to the communication data controller 304, or directly controlled by the host computer 1. The second hanger next to it becomes the hanger at the front and is blocked by the single release mechanism 310. The out-station card reader 302 sends the information of the hanger to the host computer 1 through the communication data controller 304, and the host computer assigns the hanger to the assigned workstation.

[0047] (7) The main computer determines whether the work station that the currently foremost hanger of the single release mechanism should enter is the same as the work station that the hangers at the batch release mechanism need to enter. If not, step (8) is executed. If yes, the main computer determines whether the number n2 of hangers that the single release mechanism 310 releases in turn is equal to N. If yes, step (8) is executed. If not, step (6) is executed.

[0048] (8) The time is counted from the reading of the rear push rod of the two push rods by the entry station card reader 301. When the first set value T is reached, the control system controls the batch release mechanism 309 to release all the hangers at the batch release mechanism 309 into the space between the two push rods.

[0049] When the first set value T is set, the range T1-T2-T4<T<T1-T3-T4 must be met. The uniform speed of the push rod is known, so that the time T1 for the push rod to move from the entry station card reader 301 to the exit port, the time T2 for the push rod to move one push rod interval, the time T3 for the push rod to move the length of N hangers arranged together (N hangers arranged together form a distance, and the time for the push rod to move this distance is T3), and the time T4 for one hanger to move from the batch release mechanism 309 to the exit port (the batch release mechanism blocks one or more hangers, and when the hangers are released in turn, they move to the exit port in turn, and the time for the foremost hanger to move to the exit port is T4) can be calculated.

[0050] The comparison between the required entry workstations of the n2 hangers in the control process introduced above, the hangers between the two push rods and the required entry workstations of the hangers at the batch release mechanism, is made in stages, i.e., the outstation card reader reads the information of the hanger at the front, the host computer assigns the required entry workstation to it, and then the host computer compares the required entry workstation with the corresponding workstation, and if they are the same, the hanger is released, and then the outstation card reader reads the information of the next hanger (which is the hanger at the front at the single release mechanism). In addition, the comparison can also be completed at one time, i.e., for the first n2 hangers at the single release mechanism, the host computer compares whether the required entry workstations of the n2 hangers are the same as the workstations that the hangers between the two push rods should enter, for example, N=10, there are 6 hangers between the two push rods, if the required entry workstations of the first 4 hangers at the single release mechanism are the same as the workstations that the hangers between the two push rods should enter, 4 hangers are released at one time to the batch release mechanism, if only the first 2 hangers are the same, 2 hangers are released at one time, and if the first 0 hangers are the same (i.e., the hanger at the front is different from the hangers between the two push rods), no hanger is released.

[0051] Hanger entry control:

[0052] (1) The in-station card reader 301 sends the information of the passing push rod and hanger to the host computer, and the host computer judges whether the hanger should enter the current workstation, if not, the step ends; if yes, step (2) is performed.

[0053] (2) The host computer judges whether the current workstation is full, if yes, the step ends (the fullness detection device continuously sends a signal to the host computer, and the host computer judges that the workstation is full. The judgment of whether the workstation is full can also be made by counting whether the number of hangers stored on the in-station rail reaches a set value, and when the set value is reached, it means that the workstation is full); if not, step (3) is performed.

[0054] (3) Timing starts from the first hanger read by the in-station card reader 301, and when the timing reaches a second set value, the in-station execution mechanism 305 is actuated to connect with the hanger main rail 2, and then the timing of the next push rod read by the in-station card reader 301 starts, and when the timing reaches a third set value, the in-station execution mechanism 305 is actuated to disconnect from the hanger main rail 2, and the entry is completed.

[0055] The term "counting" as used herein means both time accumulation and counting, such as counting the number of pulses from an encoder, and achieves the same purpose and result. The term "hanger" as used herein means any carrier used to hang objects on a conveyor.

Claims

1. A method of controlling a hanging assembly line, characterized by, The outbound control includes: The number of hangers n1 between the two push rods of the inbound card reader of the current workstation, the maximum number of hangers driven by one push rod is N, N>1; If 0<n1<N and the hangers do not need to enter the current workstation, the single release mechanism of the current workstation releases n2 hangers in turn to the batch release mechanism, the required entry workstations of the n2 hangers are the same as the required entry workstations of the hangers between the two push rods, until n2=N-n1 or the currently first-in-line hanger waiting for outbound at the single release mechanism is different from the required entry workstation of the hangers between the two push rods; If the hangers need to enter the current workstation or n1=0, the single release mechanism of the current workstation releases n2 hangers in turn to the batch release mechanism, the required entry workstations of the n2 hangers are the same, until n2=N or the currently first-in-line hanger waiting for outbound at the single release mechanism is different from the required entry workstation of the hangers at the batch release mechanism; The batch release mechanism releases all the hangers at the place to enter between the two push rods.

2. The hang line control method of claim 1, wherein, For the case of 0<n1<N and the hangers not entering the current workstation: Determine whether the required entry workstations of the hangers between the two push rods are the same as the required entry workstation of the currently first-in-line hanger waiting for outbound at the single release mechanism of the current workstation, if the same, the single release mechanism releases the hangers to the batch release mechanism, and so on, until the number of hangers n2 released by the single release mechanism is N-n1, or the required entry workstations of the hangers between the two push rods are different from the required entry workstation of the currently first-in-line hanger waiting for outbound at the single release mechanism; Or, determine whether there are n2 hangers at the single release mechanism whose required entry workstations are the same, if there are, the single release mechanism releases n2 hangers to the batch release mechanism.

3. The hang line control method of claim 1, wherein, For the case of the hangers needing to enter the current workstation or n1=0: After the single release mechanism releases the first-in-line hanger to the batch release mechanism, determine whether the required entry workstations of the currently first-in-line hanger are the same as the required entry workstation of the hangers at the batch release mechanism, if the same, the single release mechanism releases the hangers to the batch release mechanism, and so on, until the number of hangers n2 released by the single release mechanism is N-n1, or the required entry workstations of the currently first-in-line hanger waiting for outbound at the single release mechanism are different from the required entry workstation of the hangers at the batch release mechanism; Or, determine whether there are n2 hangers at the single release mechanism whose required entry workstations are the same, if there are, the single release mechanism releases n2 hangers to the batch release mechanism.

4. The hang line control method of claim 1, wherein, The timing starts from the identification of the second push rod among the two push rods, and reaches the first set value T, when the first set value T satisfies T1-T2-T4<T<T1-T3-T4, all the hangers released by the batch release mechanism enter between the two push rods, wherein T1 is the time for the push rod to run from the entrance card reader to the exit, T2 is the time for the push rod to move one push rod interval, T3 is the time for the push rod to move N hangers arranged together, and T4 is the time for the first hanger in front to move from the batch release mechanism to the exit.

5. The hang line control method of claim 1, wherein, It also includes entrance control: if the hanger needs to enter the current working station, the entrance execution mechanism is connected with the main rail, and after the hanger enters the current working station, the entrance execution mechanism is separated from the main rail.

6. The hang line control method of claim 5, wherein: Before connecting the entrance execution mechanism with the main rail, it is judged whether the current working station is full, if it is full, the hanger does not enter the current working station, and the exit control is not performed.

7. A hanging system comprising a hanging line, a control system, the hanging line comprising a main rail of hangers, a push rod and a plurality of work stations, an entry card reader being provided upstream of an entry gate, characterized in that, The working station is provided with a single release mechanism and a batch release mechanism, and the single release mechanism is provided with an exit card reader; The entrance card reader is used to read the push rod and hanger information and upload it to the control system; The exit card reader is used to read the hanger information at the single release mechanism and upload it to the control system; The control system is used to allocate the required working station for the hanger according to the hanger information uploaded by the exit card reader; The control system judges according to the information uploaded by the entrance card reader, if 0 If the hanger needs to enter the current working station or n1=0, the single release mechanism of the current working station releases n2 hangers to the batch release mechanism in turn, and the required working stations of the n2 hangers are the same, until n2=N or the current front hanger waiting for exit at the single release mechanism is different from the required working station of the hanger at the batch release mechanism; The control system controls the batch release mechanism to release all the hangers at the batch release mechanism to enter between the two push rods; wherein n1 is the number of hangers between the two push rods passing through the entrance card reader of the current working station, and N is the maximum number of hangers driven by one push rod, N>1.

8. The suspension system of claim 7, wherein, If the control system determines that 0 < n1 < N and the hanger does not enter the current working station, the control system determines whether the working station that the hangers between the two push rods should enter is the same as the working station required by the hanger currently ranked first at the single release mechanism of the current working station to exit, and if so, controls the single release mechanism to release the hangers to the batch release mechanism, and so on until the number of hangers n2 released by the single release mechanism is N-n1, or the working station that the hangers between the two push rods should enter is different from the working station required by the hanger currently ranked first at the single release mechanism to exit. Alternatively, the control system determines whether there are n2 hangers at the single release mechanism whose required working station is the same as the working station that the hangers between the two push rods should enter, and if so, controls the single release mechanism to release the n2 hangers to the batch release mechanism.

9. The suspension system of claim 7, wherein, If the control system determines that the hanger needs to enter the current working station or n1 = 0, after the control system controls the single release mechanism to release the hanger ranked first to the batch release mechanism, the control system determines whether the hanger currently ranked first is the same as the hanger at the batch release mechanism in terms of the working station required to enter, and if so, controls the single release mechanism to release the hanger to the batch release mechanism, and so on until the number of hangers n2 released by the single release mechanism is N-n1, or the hanger currently ranked first at the single release mechanism is different from the hanger at the batch release mechanism in terms of the working station required to enter. Alternatively, the control system determines whether there are n2 hangers at the single release mechanism whose required working station is the same, and if so, controls the single release mechanism to release the n2 hangers to the batch release mechanism.

10. The suspension system of claim 7, wherein, The control system is also configured to identify, from the entry card reader, the time when the second push rod of the two push rods starts, and when the first set value T reaches T1-T2-T4 < T < T1-T3-T4, all the hangers released by the batch release mechanism enter between the two push rods, where T1 is the time for the push rod to run from the entry card reader to the exit, T2 is the time for the push rod to move one push rod interval, T3 is the time for the push rod to move N hangers arranged together, and T4 is the time for the hanger ranked first to move from the batch release mechanism to the exit.

11. The suspension system of claim 7, wherein, If the control system determines that the hangers between the two push rods need to enter the current working station, the control system controls the entry execution mechanism of the current working station to connect with the main rail, and after the hangers enter the current working station, controls the entry execution mechanism to disconnect from the main rail.

12. The suspension system of claim 7, wherein: The input end of the working station is provided with a full detection device for detecting whether the entry rail of the working station is full of hangers, and if so, the control system does not send the instruction for the entry execution mechanism to connect with the main rail, and does not send the release instruction to the batch release mechanism.

Images