A foam insert automatic synchronous catenary system and its use method

Abstract

A foam insert automatic synchronous catenary system and a method of using the same, comprising a bracket, a catenary support track, a catenary, a hook, a hanger, a catenary drive mechanism, a sensor, and a main controller; the catenary support track is installed on the bracket, and the catenary circulates along the track of the catenary support track; the hanger is hung on the catenary through the hook; the hangers are numbered in the order of 1, 2, 3...N and pre-stored in the main controller; hangers with different numbers are used to carry inserts required for foaming a foaming mold with the same number; sensors are numbered in the order of 1, 2, 3...N, and the distance information of sensors with different numbers from the starting position is pre-stored in the main controller; the position information of the hanger is searched and calibrated by N sensors; the main controller is connected to the controller of the foam production line through a network, and the main controller controls the running speed of the catenary drive mechanism according to the running status of each mold in the foam production line, and the design of the system greatly improves work efficiency.

Description

Technical Field

[0001] The invention belongs to the field of automobile parts production and processing, and specifically relates to a foam insert automatic synchronous catenary system and a use method thereof. Background Art

[0002] With the increase in new car models, the types of foam (polyurethane elastomer) in seats are increasing, and the number of foam inserts (parts embedded inside the foam) is increasing accordingly. When producing foam, the internal inserts need to be classified and placed next to the production line using workstation equipment. These include 667 types such as non-woven fabrics, small steel wires, large frames, felt strips, inlay blocks, and EPP (highly crystalline polymer, large in size). As a result, the following problems are prone to occur during the processing: (1) Due to the increase in the number of inlays and the number of inlay placement equipment, the existing line edge area is seriously insufficient and cannot be placed; (2) EPP and large frames need to be placed 2m away from the back, which is far away from the operating staff. Workers need to step down the pedal to get the insert from 2m away. The working hours for getting the insert cannot meet the equipment cycle, and one more person needs to be added per shift, a total of two people, which increases labor costs. In addition, it is easy for the insert to be scrapped due to untimely removal, which increases material costs; (3) There are safety risks and many ergonomic issues, such as the risk of falling and spraining when going up and down the pedals, the risk of collision and injury when walking during cross-operation, the top layer of the insert device is 1.5m high, and the operation requires frequent arm lifting, which causes fatigue. The bottom of the insert device is 0.5m low, and the frequent bending over to get the insert causes waist strain; (4) The inserts are diverse and difficult to identify, and it is easy to put the wrong insert on, resulting in the scrapping of the foam. Summary of the invention

[0003] In view of the above-mentioned technical problems and defects, the object of the present invention is to provide an automatic synchronous catenary system for foam inserts. The catenary system is a closed-loop structure. The insert hangers on the system correspond one-to-one to the molds in the foam production line and operate synchronously. The operating staff only needs to stand next to the foam production line, take the corresponding inserts according to the automatically transmitted insert hangers and place them in the corresponding foam molds. This can greatly save production space, improve work efficiency, and reduce the workload of operators.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0005] A foam insert automatic synchronous catenary system, comprising a bracket, a catenary support track, a catenary, a hook, a hanger, a catenary drive mechanism, a sensor, and a main controller;

[0006] Wherein, the support is composed of columns and beams, and the support is arranged close to the foam production line;

[0007] The catenary support track is installed on the bracket. The catenary support track is a closed track with a J-shaped structure. The part of the catenary support track opposite to the foam production line insert placement area is the working area. A starting positioning block is arranged in the working area of ​​the catenary support track. The installation position of the starting positioning block is the starting point of the hanger operation and also the end point of the hanger operation.

[0008] The catenary is installed in the catenary support track, and the catenary circulates along the track of the catenary support track;

[0009] The hooks are mounted on the catenary, and the hangers are hung on the catenary at equal intervals through the hooks;

[0010] The number of the hangers is consistent with the number of foaming molds in the foam production line. They correspond to the foaming molds one by one and are consistent with the numbering rules of the foaming molds. They are numbered in the order of 1, 2, 3...N and pre-stored in the main controller; each hanger with a different number is used to carry all the inserts required for foaming the foaming mold with the same number;

[0011] The catenary drive mechanism is installed on the crossbeam of the bracket and is used to drive the catenary to run. The catenary drive mechanism includes: a variable frequency motor, an encoder, and a drive sprocket. The encoder is installed on the output shaft of the variable frequency motor. The encoder is electrically connected to the main controller and is used to send the monitored data to the main controller to control the speed of the variable frequency motor through the main controller; the drive sprocket is used to drive the catenary to run;

[0012] The number of the sensors is consistent with the number of hangers, and the sensors are installed on the catenary support track at a fixed interval. The sensors are numbered in the order of 1, 2, 3...N. The sensor numbers and the position information of sensors with different numbers from the starting positioning block are pre-stored in the main controller; wherein, sensor No. 1 is a reference sensor, and after its position from the starting positioning block is set, the main controller will automatically calculate the positions corresponding to the remaining numbered sensors, and realize the search and calibration of the position information of hangers with different numbers through N sensors;

[0013] The main controller is connected to the controller of the foam production line through a network, and is used to transmit the total length of the foam production line, the number of each mold, the operating speed, and the position information of each mold to the main controller. The main controller controls the operating speed of the catenary drive mechanism according to the operating conditions of each mold in the foam production line, combined with the position information of each hanger sent back by the sensor, and the speed of the variable frequency motor sent back by the encoder, so that the hanger and the mold corresponding to the hanger number in the foam production line run synchronously to reach the position calibrated by the starting positioning block.

[0014] As a preferred embodiment of the present invention, the catenary support track is composed of a tensioning mechanism and a catenary mounting track. The tensioning mechanism is installed at one end of the catenary mounting track and can move relative to the catenary mounting track. The tensioning mechanism keeps the catenary in a tensioned state at all times.

[0015] As a preferred embodiment of the present invention, a maintenance ladder is provided on one side of the bracket, and the maintenance ladder is arranged close to the catenary drive mechanism.

[0016] As a preferred embodiment of the present invention, a fence is provided on the outside of the bracket for the non-working area of ​​the catenary support rail.

[0017] As a preferred embodiment of the present invention, the hook includes two hanging plates, which are connected by a pin in the middle, and a U-shaped hanging card notch is processed on the outer wall at the top of each hanging plate, and the hanging card notch is hung on the catenary, and a connecting hole is processed at the bottom of each hanging plate for connecting with the hanger.

[0018] As a preferred embodiment of the present invention, an inspection port is processed on the catenary support track at a position close to the catenary driving mechanism and the tensioning mechanism.

[0019] As a preferred embodiment of the present invention, the catenary is a double-articulated universal chain; the variable frequency motor is a 3KW Mitsubishi series variable frequency motor; the sensor is a Keyence photoelectric sensor; and the main controller is a programmable controller series Siemens PLC200SMART series.

[0020] As a preferred embodiment of the present invention, the hanger has two styles, one is a first hanger for carrying EPP; the other is a second hanger for carrying ordinary inserts, and the second hanger B is provided with a plurality of placement areas and hanging areas.

[0021] As a preferred embodiment of the present invention, the driving sprocket is mounted on a sprocket frame and can rotate relative to the sprocket frame, the driving wheel of the sprocket frame is coaxially connected to the driving wheel, and the driving wheel is connected to the sprocket at the output end of the variable frequency motor through a chain.

[0022] Another object of the present invention is to provide a method for using a foam insert automatic synchronous catenary system, which specifically comprises the following steps:

[0023] Step S1, before starting the catenary system, first place all the inserts required for the foaming molds with different numbers in the foam production line on the hanger corresponding to the foaming module number;

[0024] Step S2, starting the existing foam production line, and the foam production line operates normally. During the operation, the operation position and operation speed information of the molds with different numbers on the foam production line are stored in the controller of the foam production line;

[0025] Step S3, starting the catenary system, the main controller on the catenary system is connected to the controller of the foam production line through the network, and the controller sends the running position and running speed information of the molds with different numbers to the main controller in real time;

[0026] Step S4, the main controller searches and calibrates the position information of hangers with different numbers on the catenary system through N sensors on the catenary system; at the same time, the main controller adjusts the running speed of the catenary drive mechanism in real time according to the running position and running speed information of the molds with different numbers, and the speed of the variable frequency motor sent back by the encoder, so that the hanger and the foaming mold corresponding to the hanger number in the foam production line run synchronously to reach the position calibrated by the starting positioning block;

[0027] Step S5: The operator stands beside the foam production line, takes the corresponding insert according to the insert hanger automatically transmitted, and places it in the corresponding foaming mold.

[0028] Advantages and beneficial effects of the present invention:

[0029] 1. The catenary system provided by the present invention has a reasonable structural design, compact installation, and small footprint. It is set next to the foam production line. By controlling the running speed of the catenary, the foaming mold and the hanger can be operated synchronously. The operating staff only needs to stand next to the foam production line and take the corresponding inserts according to the automatically transmitted insert hanger and place them in the corresponding foam mold. The design of the catenary system greatly improves work efficiency and reduces the work intensity of the operators.

[0030] 2. After adopting the catenary system provided by the present invention, only 2-3 operators are needed to complete the placement of the inserts of the entire foam production line, which greatly reduces the labor cost; and the catenary system runs automatically, and the operator only needs to stand in the designated working area to operate, avoiding the risk of collision and injury when walking during cross-operation.

[0031] 3. The hanger used in the catenary system of the present invention converts the concentrated mixed inserts into multiple storage areas, each storage area only stores inserts that are consistent with the mold assembly parts, which can effectively avoid the occurrence of wrong inserts due to the diversity of inserts and the difficulty in identification, resulting in the occurrence of foam scrapping. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the installation of the catenary system and the foam production line of the present invention;

[0033] Figure 2 is a side view of the bracket of the present invention;

[0034] Figure 3 is a top view of the bracket for mounting the catenary support track;

[0035] Figure 4 is a schematic diagram of the tensioning mechanism;

[0036] Figure 5 It is a schematic diagram of the links of a catenary;

[0037] Figure 6 It is a schematic diagram of the hook;

[0038] Figure 7 is the main view of the second hanger;

[0039] Figure 8 is a side view of the second hanger;

[0040] Fig. 9 is a schematic diagram of the catenary drive mechanism;

[0041] Fig.10 It is a schematic diagram of a maintenance ladder;

[0042] Fig.11 It is the control principle diagram of the catenary system. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] In the description of this application, it should be noted that the terms "inner", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] Example 1 A foam insert automatic synchronous catenary system

[0047] The foam insert automatic synchronous catenary system A provided by the present invention is arranged near one side of the foam production line B. The foam production line B is a production line well known in the existing automobile parts manufacturing industry. The production line is in a closed loop form. The foam production line runs at a certain speed under the control of a controller. The total length of the foam production line B is certain (57600mm). 32 foaming molds numbered in the order of 1, 2, 3...N are arranged at intervals on the foam production line. All foaming molds run on the mold guide rails of the foam production line. During the operation of the foaming mold, it is necessary to manually place the foam insert in the mold. When the foaming mold reaches the pouring When the pouring robot is in position, the controller will control the production line to pause, and the pouring robot will perform pouring at this time, and then the foaming mold will automatically close the mold to continue running and complete foaming; during the operation of the foaming mold, the initial position on the foaming mold guide rail is set to "0", and with foaming mold No. 1 as the reference, the controller will record the position information and running speed information of all foaming molds in the range of 0-57600mm from the initial position; the synchronous catenary system A of the present invention uses the running information (position and speed) of each foaming mold in the existing foam production line to control the operation of the hanger according to the running information of the foaming mold, so as to achieve the purpose of synchronous operation of the foaming mold and the hanger.

[0048] The foam insert automatic synchronous catenary system A provided by the present invention comprises a bracket 1, a catenary support track 2, a catenary 3, a hook 4, 32 hangers 5, a catenary drive mechanism 6, 32 sensors 7, and a main controller 8;

[0049] The support 1 is composed of a column 101 and a beam 102, and the support is arranged on a side close to the foam production line; a maintenance ladder 9 is arranged on one side of the support 1, and the maintenance ladder 9 is arranged close to the catenary drive mechanism 6. The maintenance ladder can be used to climb to the top of the support, which is convenient for repairing and maintaining the catenary drive mechanism; the model and specification of the material selected for the column and beam can ensure its own rigidity, strength and stability, and meet the hanging load-bearing capacity, and ensure that the system has no deformation and shaking;

[0050] The catenary support track 2 is installed on the bracket 1. The catenary support track is a closed track of a J-shaped structure, which is composed of a catenary mounting track 201 and a tensioning mechanism 202. The tensioning mechanism 202 is a heavy hammer tensioning mechanism, which is installed at one end of the catenary mounting track 201 and can move relative to the catenary mounting track. The tensioning mechanism can keep the catenary in a tensioned state; the part of the catenary support track 2 opposite to the foam production line insert placement area is the working area, and a starting positioning block is provided in the working area of ​​the catenary support track. The installation position of the starting positioning block is the starting point of the hanger operation, that is, the "0" point, which is also the end point of the hanger operation; the catenary support track 2 is strictly rust-removed before painting, and after treatment The track is designed to ensure that the tread is straight and smooth, and the catenary support track has a high load-bearing capacity and rigidity, ensuring the wear resistance of the track and the stability of the catenary movement; the tensioning mechanism is equipped with a detector for detecting the slack of the catenary, the maximum stroke and the breakage of the chain, and sending the detection information to the main controller, which automatically shuts down and alarms; the tensioning mechanism includes a telescopic track 2021, a tensioning curved track 2022, and a movable part; the telescopic track 2021 is arranged on the tensioning curved track, and the telescopic track has an entrance and a guide groove, which is convenient for installation on the catenary installation track, and the movable part is installed on the telescopic track, and the movable part and the telescopic rail are arranged in the frame of the catenary installation track, and the movable part has a running wheel and a guide wheel, which can be accurately guided;

[0051] The catenary 3 is installed in the catenary support track 2. The catenary 3 circulates along the track of the catenary support track. The catenary is a double-hinged universal chain with a chain pitch T=250mm; a hanging spacing 4T=1000mm; a catenary length of about 64 meters: the maximum operating speed of the chain is 10m / min, and the speed is adjustable between 0-10m / min;

[0052] The hook 4 is installed on the catenary 3, and the hanger 5 is hung on the catenary 3 at equal intervals through the hook. The hook 4 includes two hanging pieces 401, and the middle of the two hanging pieces is connected by a pin shaft. A U-shaped hanging card notch 402 is processed on the outer side wall of the top of each hanging piece. The hanging card notch is hung on the catenary 3, and a connecting hole 403 is processed at the bottom of each hanging piece for connecting with the hanger 5 through an iron chain. The hook 4 meets the 150Kg load-bearing requirement for each hanging point. The hook of this structure can effectively prevent falling off and prevent the product from falling during operation;

[0053] The number of the hangers 5 is consistent with the number of foaming molds in the foam production line, and they correspond to the foaming molds one by one, and are consistent with the numbering rules of the foaming molds, and are numbered in the order of 1, 2, 3...N, and are pre-stored in the main controller 8; each hanger with a different number is used to carry all the inserts required for foaming the foaming mold with the same number; there are two styles of hangers, one is a first hanger for carrying EPP, a total of 6, which is large in size and adopts a cage-type hanger; the other is a second hanger for carrying ordinary inserts, a total of 26, the second hanger B can be equipped with large skeletons, felt, steel wire, mosaic blocks, etc., and is multi-purpose. In actual use, multiple placement areas 501 and hanging areas 502 can be set in the second hanger, and different inserts can be placed or hung in each area, which can effectively avoid the occurrence of foam scrapping due to the diversity of inserts, which is difficult to distinguish and easy to put the wrong insert on;

[0054] The catenary drive mechanism 6 is installed on the crossbeam of the bracket and is used to drive the catenary to operate. The catenary drive mechanism 6 includes: a variable frequency motor 601, an encoder 602, and a driving sprocket 603. The encoder is installed on the output shaft of the variable frequency motor. The encoder is electrically connected to the main controller and is used to send the monitored data to the main controller to control the speed of the variable frequency motor through the main controller; the variable frequency motor 601 selects a 3KW Mitsubishi series variable frequency motor, which works stably and can ensure speed adjustment at any time; the driving sprocket is installed on the sprocket frame 604 and can rotate relative to the sprocket frame. The driving wheel of the sprocket frame 604 is coaxially connected with the driving wheel 6041, and the driving wheel 6041 is connected to the sprocket at the output end of the variable frequency motor through a chain. After the variable frequency motor is driven, the driving wheel 6041 is driven to rotate, thereby driving the driving sprocket 603 to rotate, and the driving sprocket drives the catenary to operate;

[0055] The sensor 7 is a Keyence photoelectric sensor, which is installed on the catenary support track at a fixed interval. The sensors are numbered in the order of 1, 2, 3...N. The sensor numbers and the position information of sensors with different numbers from the starting positioning block are pre-stored in the main controller; among them, sensor No. 1 is the reference sensor. After its position from the starting positioning block is set, the main controller will automatically calculate the positions corresponding to the remaining numbered sensors, and the position information of hangers with different numbers can be found and calibrated through N sensors; the control positions of 32 sensors can be installed and arranged in the following manner:

[0056] #1 sensor position: +4.10; #2 sensor position: +6.05; #3 sensor position: +8.04; #4 sensor position: +10.04; #5 sensor position: +12.03; #6 sensor position: +14.01; #7 sensor position: +16.03; #8 sensor position: +18.01; #9 sensor position: +20.02; #10 sensor position: +22.00; #11 sensor position: +24.02; #12 sensor position: +26:00 #13 sensor position: +27.90; #14 sensor position: +29.88; #15 sensor position: +31.87; #16 sensor position: +33.87; #17 sensor position: +35.87; #18 Sensor position: +37.87; #19 sensor position: +39.85; #20 sensor position: +41.85; #21 sensor position: +43.84; #22 sensor position: +45.84; #23 sensor position: +47.89; #24 sensor position: +49.96; #25 sensor position: +51.98; #26 sensor position: +53.94; #27 sensor position: +55.85; #28 sensor position: +57.80; #29 sensor position: +60.29; #30 sensor position: +62.83; #31 sensor position: +64.78; #32 sensor position: +66.77, after the sensor finds that the position has deviated, the catenary will automatically track or wait;

[0057] The main controller 8 selects the Siemens PLC 200SMART series of programmable controllers. The main controller is connected to the controller of the foam production line through a network, and is used to transmit the total length of the foam production line, the number of each mold, the operating speed, and the position information to the main controller. The main controller controls the operating speed of the catenary drive mechanism according to the operating conditions of each mold in the foam production line, combined with the position information of each hanger sent back by the sensor, and the speed of the variable frequency motor sent back by the encoder, so that the hanger and the mold corresponding to the hanger number in the foam production line run synchronously to the position calibrated by the starting positioning block.

[0058] Furthermore, a fence is provided on the outside of the bracket for the non-working area of ​​the catenary support track, and the height of the fence is 2000 mm. The fence is used to ensure the normal operation of the catenary system and prevent people from walking and scratching the hoist.

[0059] An inspection port is processed on the catenary support track near the catenary driving mechanism and the tensioning mechanism, so as to facilitate observation of the chain wear and chain tension during normal use.

[0060] Example 2: Method for using a foam insert automatic synchronous catenary system

[0061] A method for using a foam insert automatic synchronous catenary system, comprising the following steps:

[0062] Step S1, before starting the catenary system, first place all the inserts required for the foaming molds with different numbers in the foam production line on the hanger corresponding to the foaming module number;

[0063] Step S2, starting the existing foam production line, and the foam production line operates normally. During the operation, the operation position and operation speed information of the molds with different numbers on the foam production line are stored in the controller of the foam production line;

[0064] Step S3, starting the catenary system, the main controller on the catenary system is connected to the controller of the foam production line through the network, and the controller sends the running position and running speed information of the molds with different numbers to the main controller in real time;

[0065] Step S4, the main controller searches and calibrates the position information of hangers with different numbers on the catenary system through N sensors on the catenary system; at the same time, the main controller adjusts the running speed of the catenary drive mechanism in real time according to the running position and running speed information of the molds with different numbers, and the speed of the variable frequency motor sent back by the encoder, so that the hanger and the foaming mold corresponding to the hanger number in the foam production line run synchronously to reach the position calibrated by the starting positioning block;

[0066] Step S5: The operator stands beside the foam production line, takes the corresponding insert according to the insert hanger automatically transmitted, and places it in the corresponding foaming mold.

[0067] The above description is only a preferred embodiment of the present application and is not intended to limit the present application.

Claims

1. A foam insert automatic synchronous catenary system, characterized in that: It includes a bracket, a catenary support track, a catenary, a hook, a hanger, a catenary drive mechanism, a sensor, and a main controller; Wherein, the support is composed of columns and beams, and the support is arranged close to the foam production line; The catenary support track is installed on the bracket. The catenary support track is a closed track with a J-shaped structure. The part of the catenary support track opposite to the foam production line insert placement area is the working area. A starting positioning block is arranged in the working area of ​​the catenary support track. The installation position of the starting positioning block is the starting point of the hanger operation and also the end point of the hanger operation. The catenary is installed in the catenary support track, and the catenary circulates along the track of the catenary support track; The hooks are mounted on the catenary, and the hangers are hung on the catenary at equal intervals through the hooks; The number of the hangers is consistent with the number of foaming molds in the foam production line. They correspond to the foaming molds one by one and are consistent with the numbering rules of the foaming molds. They are numbered in the order of 1, 2, 3...N and pre-stored in the main controller; each hanger with a different number is used to carry all the inserts required for foaming the foaming mold with the same number; The catenary drive mechanism is installed on the crossbeam of the bracket and is used to drive the catenary to run. The catenary drive mechanism includes: a variable frequency motor, an encoder, and a drive sprocket. The encoder is installed on the output shaft of the variable frequency motor. The encoder is electrically connected to the main controller and is used to send the monitored data to the main controller, and the speed of the variable frequency motor is controlled by the main controller; the drive sprocket is used to drive the catenary to run; The number of the sensors is consistent with the number of hangers, and the sensors are installed on the catenary support track at a fixed interval. The sensors are numbered in the order of 1, 2, 3...N. The sensor numbers and the position information of sensors with different numbers from the starting positioning block are pre-stored in the main controller; wherein, sensor No. 1 is a reference sensor, and after its position from the starting positioning block is set, the main controller will automatically calculate the positions corresponding to the remaining numbered sensors, and realize the search and calibration of the position information of hangers with different numbers through N sensors; The main controller is connected to the controller of the foam production line through a network, and is used to transmit the total length of the foam production line, the number of each mold, the running speed, and the position information to the main controller. The main controller controls the running speed of the catenary drive mechanism according to the running status of each mold in the foam production line, and the position information of each hanger sent back by the sensor, and the speed of the variable frequency motor sent back by the encoder, so that the hanger and the mold corresponding to the hanger number in the foam production line run synchronously to reach the position calibrated by the starting positioning block; A maintenance ladder is provided on one side of the bracket, and the maintenance ladder is arranged close to the catenary drive mechanism; A fence is provided on the outside of the bracket for the non-working area of ​​the catenary support rail.

2. A foam insert automatic synchronous catenary system according to claim 1, characterized in that: The catenary support track is composed of a tensioning mechanism and a catenary mounting track. The tensioning mechanism is installed at one end of the catenary mounting track and can move relative to the catenary mounting track. The tensioning mechanism keeps the catenary in a tensioned state.

3. The foam insert automatic synchronous catenary system according to claim 1, characterized in that: The hook includes two hanging plates, which are connected by a pin in the middle. A U-shaped hanging notch is processed on the outer side wall of the top of each hanging plate. The hanging notch is hung on the catenary. A connecting hole is processed at the bottom of each hanging plate for connecting with the hanger.

4. A foam insert automatic synchronous catenary system according to claim 1, characterized in that: An inspection port is machined on the catenary support track at a position close to the catenary driving mechanism and the tensioning mechanism.

5. The foam insert automatic synchronous catenary system according to claim 1, characterized in that: The catenary is a double-articulated universal chain; the variable frequency motor is a 3KW Mitsubishi series variable frequency motor; the sensor is a Keyence photoelectric sensor; the main controller is a programmable controller series Siemens PLC 200SMART series.

6. A foam insert automatic synchronous catenary system according to claim 1, characterized in that: The hangers are of two types, one is a first hanger for carrying EPP; the other is a second hanger for carrying common inserts, and the second hanger B is provided with a plurality of placement areas and hanging areas.

7. The foam insert automatic synchronous catenary system according to claim 1, characterized in that: The driving sprocket is mounted on the sprocket frame and can rotate relative to the sprocket frame. The driving wheel of the sprocket frame is coaxially connected with the driving wheel. The driving wheel is connected to the sprocket at the output end of the variable frequency motor through a chain.

8. A method for using the foam insert automatic synchronous catenary system according to claim 1, characterized in that: The specific steps include: Step S1, before starting the catenary system, first place all the inserts required for the foaming molds with different numbers in the foam production line on the hanger corresponding to the foaming module number; Step S2, starting the existing foam production line, and the foam production line operates normally. During the operation, the operation position and operation speed information of the molds with different numbers on the foam production line are stored in the controller of the foam production line; Step S3, starting the catenary system, the main controller on the catenary system is connected to the controller of the foam production line through the network, and the controller sends the running position and running speed information of the molds with different numbers to the main controller in real time; Step S4, the main controller searches and calibrates the position information of hangers with different numbers on the catenary system through N sensors on the catenary system; at the same time, the main controller adjusts the running speed of the catenary drive mechanism in real time according to the running position and running speed information of the molds with different numbers, and the speed of the variable frequency motor sent back by the encoder, so that the hanger and the foaming mold corresponding to the hanger number in the foam production line run synchronously to reach the position calibrated by the starting positioning block; Step S5: The operator stands beside the foam production line, takes the corresponding insert according to the insert hanger automatically transmitted, and places it in the corresponding foaming mold.

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