Emergency stop interlocking safety device

Abstract

The invention discloses an emergency stop linkage safety device, and relates to the field of industrial automation and safety, the device comprises a support group, and the support group comprises a first support and a second support which are arranged on the two sides of a conveying track; the emergency stop pull rope is arranged between the first bracket and the second bracket and is connected with the emergency stop switch; the emergency stop switch is used for generating a trigger signal to control the conveying track to stop working if detecting that the tension of the emergency stop pull rope connected with the emergency stop switch is larger than or equal to the preset tension. Therefore, after an operator is stumbled, the conveying track stops running, and the operator is prevented from being hurt.

Description

Technical Field

[0001] The present application relates to the field of industrial automation and safety, and in particular to an emergency stop interlocking safety device. Background Art

[0002] The pulp-board baling line includes a baler, a packaging machine, and a conveyor track for transporting pulp bales from the baler to the packaging machine. The baler is used to compress the pulp bales after preliminary processing to reduce their volume and increase their density, which is convenient for subsequent packaging and transportation. The packaging machine is used to package the compressed pulp bales to form a complete packaging unit for easy transportation and storage. Operators need to pass through the conveyor track frequently. When operators pass through, they are easily tripped by the pulp bales transported by the conveyor track or the conveyor track.

[0003] After the operator tripped, the conveyor track, bale press and packaging machine were still in operation, which could cause injury to the operator. Summary of the invention

[0004] In view of the above problems, the present application provides an emergency stop interlocking safety device to achieve the purpose of reducing the harm to operators. The specific scheme is as follows:

[0005] An emergency stop interlocking safety device, comprising:

[0006] A bracket group, the bracket group comprising a first bracket and a second bracket disposed on both sides of the conveying track;

[0007] An emergency stop pull rope disposed between the first bracket and the second bracket and connected to the emergency stop switch;

[0008] The emergency stop switch is used to generate a trigger signal to control the conveying track to stop working if it detects that the tension of the emergency stop rope connected to it is greater than or equal to the preset tension.

[0009] In a possible implementation, the method further includes:

[0010] A relay connected to the emergency stop switch, configured to send the trigger signal and the first identifier of the emergency stop switch to a programmable logic controller PLC after detecting the trigger signal generated by the emergency stop switch;

[0011] The PLC is used to search for the second identifier of the motor controller of the baling machine, the third identifier of the motor controller of the packaging machine, and the fourth identifier of the motor controller of the conveying track corresponding to the first identifier from the correspondence between the identifier of the preset emergency stop switch and the identifier of the motor controller of the baling machine, the identifier of the motor controller of the packaging machine, and the identifier of the motor controller of the conveying track; send an emergency stop signal to the motor controller with the second identifier, the motor controller with the third identifier, and the motor controller with the fourth identifier; the emergency stop signal is used to instruct the motor controller with the second identifier, the motor controller with the third identifier, and the motor controller with the fourth identifier to stop operating.

[0012] In a possible implementation, the number of the emergency stop pull ropes provided in the bracket group is two; wherein, the vertical distance between one of the emergency stop pull ropes and the conveying track is the sum of the maximum height of the pulp bag and a set value; and the vertical distance between the other emergency stop pull rope and the conveying track is [80cm, 100cm].

[0013] In a possible implementation, the first bracket and the second bracket in the bracket group are located in the same plane, and the plane is perpendicular to the plane where the conveying track is located.

[0014] In a possible implementation, the emergency stop pull rope is perpendicular to the moving direction of the conveying track, and the emergency stop pull rope is parallel to the conveying track.

[0015] In a possible implementation, the bracket group is arranged on columns of a walking platform located on both sides of the conveying track.

[0016] In a possible implementation, the emergency stop pull rope is connected to an emergency stop switch, and the emergency stop switch is arranged at one end of the emergency stop pull rope.

[0017] In a possible implementation, the tension of the emergency stop rope is set to 50N±5%.

[0018] In a possible implementation, one emergency stop pull rope is connected to a plurality of emergency stop switches; and the PLC is further used for:

[0019] From the preset correspondence between the identifier of the emergency stop pull rope and the identifier of the emergency stop switch, searching for the fifth identifier of the emergency stop pull rope corresponding to the first identifier;

[0020] From the preset correspondence between the identifier of the emergency stop pull rope and the identifier of the emergency stop switch, searching for the target identifier of the emergency stop switch corresponding to the fifth identifier;

[0021] If the first identifier includes all of the target identifiers, the step of sending an emergency stop signal to the motor controller having the second identifier, the motor controller having the third identifier, and the motor controller having the fourth identifier is executed.

[0022] In a possible implementation, the PLC is further used for:

[0023] If the first identifier does not include all of the target identifiers, the trigger signal is not responded to.

[0024] By means of the above technical solution, the present application provides an emergency stop interlocking safety device, including a bracket group, the bracket group including a first bracket and a second bracket deployed on both sides of the conveying track; an emergency stop pull rope arranged between the first bracket and the second bracket and connected to the emergency stop switch; the emergency stop switch is used to generate a trigger signal to control the conveying track to stop working if it detects that the tension of the emergency stop pull rope connected to it is greater than or equal to the preset tension. Thereby, the conveying track stops running after the operator is tripped, avoiding the situation where the operator is injured. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0026] Figure 1 A structural schematic diagram of an implementation method of a pulp-board baling line provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of a pulp-sheet baling line from another perspective provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of an emergency stop interlocking safety device provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of the on-site arrangement of an emergency stop pull rope and an emergency stop switch provided in an embodiment of the present application;

[0030] Figure 5 A schematic diagram of the connection relationship between the emergency stop switch, relay and PLC provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] The following describes the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. The terms used in the implementation method section of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0032] The embodiments of the present application are described below in conjunction with the accompanying drawings. Those skilled in the art will appreciate that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0033] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and need not be used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is only to describe the distinction mode adopted by the objects of the same attributes when describing in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0034] The following explanation is given using the PL12 pulp board baling line as an example. The operator of the PL12 pulp board baling line needs to pass through the conveyor track during operation. The conveyor track in the PL12 pulp board baling line conveys a pulp bag every 30 seconds. The operator walks on a single pulp board baling line at least 32 times per shift; if there are a total of 6 pulp board baling lines in the pulp board workshop, it is possible to pass through the conveyor track 288 times a day. Operators are very likely to be tripped by pulp bags and conveyor tracks. Once a person falls, the conveyor track, the baling machine and the packaging machine cannot stop running, which will cause mechanical injuries to the operator; the pulp board baling line in the applicant's pulp board workshop has been in operation for about 122,000 hours, and the probability of accidents is high.

[0035] The structure of the pulp board baling line is described below. Figure 1 The figure is a schematic diagram of the structure of an implementation method of the pulp-board baling line provided in an embodiment of the present application.

[0036] like Figure 1 As shown, the pulp-sheet baling line includes a baling machine, a packaging machine, and a conveying track for transporting the pulp bales from the baling machine to the packaging machine.

[0037] Figure 1 The direction indicated by the black arrow in FIG. 1 is the moving direction of the conveying track.

[0038] Operators need to frequently pass through the conveyor track, and the direction in which they pass through the conveyor track is perpendicular to the moving direction of the conveyor track. Therefore, walking platforms are set on both sides of the conveyor track, and operators can pass through the conveyor track through the walking platforms. When operators pass through, they are easily tripped by the pulp bags transported by the conveyor track or the conveyor track.

[0039] In order for those skilled in the art to better understand the walking platform in the embodiment of the present application, Figure 2 , which is a schematic diagram of the pulp-board baling line provided in an embodiment of the present application from another perspective.

[0040] from Figure 2 It can be seen that in the moving direction of the conveyor track ( Figure 2 There are walking platforms on both sides of the conveyor track (the direction of the solid arrow in the middle is the moving direction). Generally, the two walking platforms correspond to each other, so that the operator can pass through the conveyor track more conveniently. For example, the operator can walk from the walking platform on one side to the walking platform on the other side to pass through the conveyor track.

[0041] Exemplarily, a column is provided on the walking platform, and a plurality of bracket groups can be provided on the column, such as Figure 2 Part of the handrails of the walking platform in the bracket group constitutes an exemplary, Figure 2 Two bracket groups are shown, namely bracket group 1 and bracket group 2. Bracket group 1 includes a first bracket and a second bracket; bracket group 1 includes a first bracket and a second bracket.

[0042] Exemplarily, the heights of the first bracket and the second bracket included in each bracket group are adjustable.

[0043] The following is combined with the above Figure 1 and Figure 2 , an emergency stop interlocking safety device provided in an embodiment of the present application is described.

[0044] like Figure 3 , which is a schematic diagram of the emergency stop interlocking safety device provided in an embodiment of the present application.

[0045] like Figure 3 As shown, the uppermost steps of the conveying track and the walking platform are almost in the same plane, which makes it convenient for operators to walk from the walking platform on one side of the conveying track to the walking platform on the other side of the conveying track.

[0046] Combine the following Figure 3 The structure of the emergency stop interlock safety device is explained.

[0047] The emergency stop interlock safety device includes the following components.

[0048] One or more bracket groups, each bracket group includes a first bracket 311 and a second bracket 312 disposed on both sides of the conveying track.

[0049] Figure 3 For example only, Figure 3 The shapes and positions of the first bracket and the second bracket in the column are not limited.

[0050] For example, the column can also be directly used as a bracket. Figure 3 One of the two uprights shown in the figure can be used as a first bracket and the other can be used as a second bracket.

[0051] Figure 3 Only the columns on the left side of the walking platform are shown. It is understandable that the right side of the walking platform may also have columns, and a bracket set may also be provided on the columns on the right sides of the two walking platforms. Figure 3 One bracket group is shown, but the number of bracket groups is not limited.

[0052] For each bracket set, an emergency stop pull rope 32 is arranged between the first bracket and the second bracket and connected to the emergency stop switch.

[0053] Illustratively, the emergency stop pull rope is a strong rope.

[0054] For each bracket group, an emergency stop switch 33 is arranged on the bracket group, and is used to generate a trigger signal to control the conveying track to stop working if it is detected that the tension of the emergency stop pull rope connected thereto is greater than or equal to the preset tension.

[0055] Exemplarily, the number of the emergency stop switches may be one or more.

[0056] Exemplarily, an emergency stop pull rope may be connected to one or more emergency stop switches 33 .

[0057] It is understandable that when the emergency stop pull rope is pulled, the emergency stop switch connected to the emergency stop pull rope will be triggered to generate a trigger signal. Exemplarily, the trigger signal can be an electrical signal.

[0058] Figure 3 An emergency stop pull rope 32 and an emergency stop switch 33 are shown in FIG. Figure 3 It is only an example, and the number of the emergency stop pull rope and the number of the emergency stop switches are not limited. For example, the other end of the emergency stop pull rope 32 is also connected to the emergency stop switch.

[0059] Exemplarily, the number of emergency stop pull ropes provided in each bracket group is one or more.

[0060] It is understandable that if the operator accidentally falls, the operator may not be able to reach the high emergency stop pull rope, but the position of the emergency stop pull rope cannot be too low, otherwise it will affect the normal passage of the pulp bag. For example, the vertical distance between the emergency stop pull rope and the conveying track is the sum of the maximum height of the pulp bag and the set value. For example, if the maximum height of the pulp bag is 50cm and the set value is 1cm, the vertical distance between the emergency stop pull rope and the conveying track is 51cm.

[0061] Exemplarily, the set value may be determined based on actual conditions. Generally, the set value may be a smaller value so that the operator can reach the emergency stop rope after falling.

[0062] It is understandable that the operator can also pull the emergency stop rope when he is standing upright and tends to fall. At this time, the emergency stop rope can be set at a vertical distance of [80cm, 100cm] from the conveyor track, and the operator's arm can easily touch the position between [80cm, 100cm].

[0063] Exemplarily, an emergency stop pull rope may be provided at intervals of a preset length, such as 10 cm, between [the sum of the maximum height of the pulp bag and the set value, 100 cm].

[0064] like Figure 4 , which is a schematic diagram of the on-site layout of an emergency stop pull rope and an emergency stop switch provided in an embodiment of the present application.

[0065] Figure 4 A bracket group is shown in FIG. 1 , which includes a first bracket and a second bracket.

[0066] Figure 4 An emergency stop switch 33 is shown in FIG. Figure 4 The black straight line in the figure is the emergency stop rope 32.

[0067] pass Figure 3 and Figure 4 It can be seen that the emergency stop pull rope is almost perpendicular to the moving direction of the conveying track, and the length of the emergency stop pull rope is greater than or equal to the width of the conveying track.

[0068] This application uses an emergency stop pull rope to replace the dot button, which greatly improves the protection range for the following reasons:

[0069] The dot button can only cover a limited area. If the operator is not near the dot button, the dot button may not be triggered in time, thus failing to prevent potential injuries. Since the length of the emergency stop pull rope is greater than or equal to the width of the conveyor track, the protection range is significantly expanded. The emergency stop pull rope can provide emergency stop function in a longer area, and the operator can pull the emergency stop pull rope at any position within the entire width of the conveyor track. This design greatly improves the protection range, meaning that almost the entire hazardous area is covered by the emergency stop pull rope, greatly improving safety.

[0070] The present application provides an emergency stop interlocking safety device, comprising a bracket group, the bracket group comprising a first bracket and a second bracket deployed on both sides of a conveying track; an emergency stop pull rope arranged between the first bracket and the second bracket and connected to an emergency stop switch; the emergency stop switch is used to generate a trigger signal to control the conveying track to stop working if it detects that the tension of the emergency stop pull rope connected to it is greater than or equal to a preset tension. Thus, the conveying track stops running after the operator is tripped, avoiding the operator from being injured.

[0071] In an optional implementation, the embodiment of the present application also includes: a relay connected to the emergency stop switch, which is used to send the trigger signal and the first identifier of the emergency stop switch to the programmable logic controller PLC after detecting the trigger signal generated by the emergency stop switch.

[0072] Exemplarily, different emergency stop switches are connected to different relays.

[0073] Exemplarily, the relays connected to different emergency stop switches are the same.

[0074] The PLC is used to search for the second identifier of the motor controller of the baling machine, the third identifier of the motor controller of the packaging machine, and the fourth identifier of the motor controller of the conveying track corresponding to the first identifier from the correspondence between the identifier of the preset emergency stop switch and the identifier of the motor controller of the baling machine, the identifier of the motor controller of the packaging machine, and the identifier of the motor controller of the conveying track; send an emergency stop signal to the motor controller with the second identifier, the motor controller with the third identifier, and the motor controller with the fourth identifier; the emergency stop signal is used to instruct the motor controller with the second identifier, the motor controller with the third identifier, and the motor controller with the fourth identifier to stop operating.

[0075] It is understandable that the pulp board workshop may include multiple pulp board baling lines. Each pulp board baling line includes: a baling machine, a packaging machine, and a conveyor track for transporting pulp bales from the baling machine to the packaging machine. The emergency stop interlocking safety device mentioned in the embodiment of the present application is set for each pulp board baling line.

[0076] Since there are multiple pulp-board baling lines, for example, there are 6 pulp-board baling lines, namely, pulp-board baling line A1, pulp-board baling line A2, pulp-board baling line A3, pulp-board baling line A4, pulp-board baling line A5, and pulp-board baling line A6; if the operator falls while passing through the conveying track in pulp-board baling line A2, the operation of the pressing machine, packaging machine, and conveying track in pulp-board baling line A2 should be stopped, and there is no need to stop the operation of the pressing machine, packaging machine, and conveying track in pulp-board baling line A3. Therefore, it is necessary to pre-set the "correspondence between the identification of the emergency stop switch and the identification of the motor controller of the pressing machine, the identification of the motor controller of the packaging machine, and the identification of the motor controller of the conveying track". The emergency stop switch, pressing machine, packaging machine, and conveying track with the above-mentioned correspondence belong to the same pulp-board baling line.

[0077] For example, if different emergency stop switches are connected to different relays, the correspondence between the relay identifier and the identifier of the motor controller of the packaging machine, the identifier of the motor controller of the packaging machine, and the identifier of the motor controller of the conveyor track can also be pre-set.

[0078] This application integrates mechanical triggering and PLC interlocking, so that the absolute value of the time difference from the operator pulling the emergency stop cord to the time when the baling machine, packaging machine and conveyor track stop running is ≤0.3 seconds. This application combines mechanical triggering (pulling the emergency stop cord) with PLC control to achieve rapid response. Once the emergency stop cord is triggered, the emergency stop signal will be immediately transmitted to the PLC. This rapid response mechanism ensures that in an emergency, equipment such as baling machines, packaging machines and conveyor tracks can stop running within 0.3 seconds, greatly reducing the possibility of injury.

[0079] The following example illustrates the PLC program in the PLC.

[0080]

[0081] Among them, Emergency_Stop represents the trigger signal. If the emergency stop switch is triggered, a trigger signal Emergency_Stop will be generated. If Emergency_Stop=TRUE, it represents being triggered. If Emergency_Stop≠TRUE, it represents not being triggered.

[0082] Motor_Contactor represents the emergency stop signal used to control the bag press, packaging machine, and conveyor track. Motor_Contactor = FALSE represents the need to control the bag press, packaging machine, and conveyor track to stop running.

[0083] Alarm_Trigger=TRUE indicates that an alarm signal is triggered, such as lighting an alarm light, sounding an alarm, etc., to alert operators to the occurrence of an emergency.

[0084] RESET REQUIRED indicates that the operator needs to manually reset or confirm safety before the emergency stop state can be released and the equipment such as the pressing machine, packaging machine, and conveyor track can be restarted.

[0085] An embodiment of the present application provides an emergency stop interlocking safety device, at least one bracket group, each bracket group includes a first bracket and a second bracket deployed on both sides of a conveying track. For each bracket group, an emergency stop pull rope is arranged between the first bracket and the second bracket included in the bracket group and connected to at least one emergency stop switch. For each bracket group, when the emergency stop pull rope is pulled, the at least one emergency stop switch arranged on the bracket group, the emergency stop switch connected to the emergency stop pull rope will be triggered to generate a trigger signal. For each of the emergency stop switches, a relay connected to the emergency stop switch is used to send the trigger signal and the first identifier of the emergency stop switch to a programmable logic controller PLC if the trigger signal generated by the emergency stop switch is detected. The PLC searches for the second identifier of the motor controller of the packing machine, the third identifier of the motor controller of the packaging machine, and the fourth identifier of the motor controller of the conveying track corresponding to the first identifier from the correspondence between the identifier of the preset emergency stop switch and the identifiers of the motor controller of the packing machine, the motor controller of the packaging machine, and the motor controller of the conveying track; and sends an emergency stop signal to the motor controller with the second identifier, the motor controller with the third identifier, and the motor controller with the fourth identifier; the emergency stop signal is used to instruct the motor controller with the second identifier, the motor controller with the third identifier, and the motor controller with the fourth identifier to stop running. In this way, the conveying track, the packing machine, and the packaging machine stop running after the operator is tripped, avoiding the situation where the operator is injured.

[0086] It is understandable that if the operator is tripped or has a tendency to fall, the force of pulling the emergency stop rope may be small. In order to increase the sensitivity of the emergency stop rope, the tension of the emergency stop rope can be set. Exemplarily, the tension of the emergency stop rope is set to 50N±5%.

[0087] For example, a tension meter (also called a dynamometer) may be used to measure the tension of the emergency stop cable.

[0088] The tensioning force set at 50N±5% can ensure that in an emergency, the operator only needs to apply a small force to trigger the emergency stop switch through the emergency stop pull rope, thereby quickly triggering the emergency stop, thereby quickly stopping the operation of the equipment and reducing the risk of accidents.

[0089] For example, the preset pressure can be determined based on the actual situation. For example, the preset pressure is 4N, that is, the trigger force of the emergency stop switch is ≤5N, which means that the operator only needs to apply a small force to trigger the emergency stop, which greatly improves the response speed. The emergency stop switch is connected in series with the relay to ensure that once triggered, it can be immediately sent to the PLC, so that the PLC controls the relevant equipment to stop running, thereby avoiding or reducing possible injuries.

[0090] It is understandable that the embodiment of the present application regards the above-mentioned "trigger signal" as the signal with the highest priority, so that after detecting the trigger signal, it will respond immediately. The present application implements a hierarchical response mechanism (i.e., a mechanism with different priorities for different signals) by modifying the PLC program, synchronously locks the device after triggering, and restarts the authority until manually reset. That is, after the baling machine, packaging machine, and conveyor track stop running, if you want to continue running, you need to manually reset and restart. This measure prevents equipment such as baling machines, packaging machines, and conveyor tracks from automatically restarting without checking and confirming safety, thereby increasing safety.

[0091] It is understandable that the operator may accidentally press the emergency stop pull rope. In order to avoid the operator accidentally pressing the emergency stop pull rope, the present application provides a redundant safety design, that is, one emergency stop pull rope is connected to multiple emergency stop switches. At this time, the PLC is also used to perform the following steps B1 to B3.

[0092] Step B1: searching for the fifth identifier of the emergency stop rope corresponding to the first identifier from the preset correspondence between the identifiers of the emergency stop rope and the identifiers of the emergency stop switch.

[0093] It is understandable that, since a trigger signal of the emergency stop switch having the first identifier is received, it is necessary to find the fifth identifier of the emergency stop rope corresponding to the first identifier.

[0094] Exemplarily, the number of the first identifiers may be one or more.

[0095] Step B2: searching for the target identifier of the emergency stop switch corresponding to the fifth identifier from the preset correspondence between the identifier of the emergency stop pull rope and the identifier of the emergency stop switch.

[0096] It can be understood that if the emergency stop pull rope with the fifth mark is connected to 5 emergency stop switches, the number of target marks is 5; if the emergency stop pull rope with the fifth mark is connected to 1 emergency stop switch, the number of target marks is 1.

[0097] Step B3: If the first identifier includes all of the target identifiers, execute the step of sending an emergency stop signal to the motor controller with the second identifier, the motor controller with the third identifier, and the motor controller with the fourth identifier.

[0098] It can be understood that if the first identifier includes all target identifiers, it means that all emergency stop switches connected to the emergency stop rope with the first identifier are triggered and generate a trigger signal, which means it is not a false trigger, so step B3 can be executed.

[0099] It is understandable that if the first identifier does not include all the target identifiers, it means that all the emergency stop switches connected to the emergency stop pull rope with the first identifier are not all triggered, indicating that it is a false trigger, so there is no need to perform step B3. That is, if the first identifier does not include all the target identifiers, the trigger signal is not responded.

[0100] This application regards multiple emergency stop switches connected to the same emergency stop pull rope as multiple channel signals, that is, one emergency stop switch corresponds to one channel signal. The PLC can verify multiple channel signals to avoid false triggering.

[0101] For example, the emergency stop switch mentioned in the embodiment of the present application can be an IP67 (Ingress Protection) grade product.

[0102] The emergency stop interlocking safety device provided in this application has been found, after field trials, to not only effectively prevent the occurrence of mechanical injuries, but also to be scalable and applicable to other transmission equipment.

[0103] In an optional implementation, the first bracket and the second bracket in each bracket group are located in the same plane, and the plane is perpendicular to the plane where the conveying track is located.

[0104] In an optional implementation, the emergency stop pull rope is perpendicular to the moving direction of the conveying track, and the emergency stop pull rope is parallel to the conveying track.

[0105] In an optional implementation, the bracket group is arranged on the columns of the walking platform located on both sides of the conveying track.

[0106] In an optional implementation, the emergency stop pull rope is connected to an emergency stop switch, and the emergency stop switch is arranged at one end of the emergency stop pull rope.

[0107] In order for those skilled in the art to better understand the embodiments of the present application, the connection relationship among the emergency stop switch, the relay and the PLC is illustrated below by way of example.

[0108] like Figure 5 As shown, it is a schematic diagram of the connection relationship between the emergency stop switch, relay and PLC provided in an embodiment of the present application.

[0109] Figure 5 The emergency stop rope is not shown. Figure 5A plurality of emergency stop switches 51 are shown; each emergency stop switch 51 is connected to a relay 52; and different relays are connected to a PLC 53. Different output terminals of the PLC are connected to different motor controllers 54, so that the motor can be stopped or run by the motor controller.

[0110] The multiple motor controllers 54 include: motor controllers of baling machines in different pulp-board baling lines, motor controllers of packaging machines in different pulp-board baling lines, and motor controllers of conveying tracks in different pulp-board baling lines.

[0111] It should also be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the drawings of the device embodiments provided by the present application, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines.

[0112] Through the description of the above implementation mode, the technicians in the field can clearly understand that the present application can be implemented by means of software plus necessary general hardware, and of course, it can also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components, etc. In general, all functions completed by computer programs can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be various, such as analog circuits, digital circuits or special circuits. However, for the present application, software program implementation is a better implementation mode in more cases. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a readable storage medium, such as a computer floppy disk, a U disk, a mobile hard disk, a ROM, a RAM, a disk or an optical disk, etc., including a number of instructions to enable a computer device (which can be a personal computer, a training device, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0113] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

Claims

1. An emergency stop interlocking safety device, characterized in that: include: A bracket group, the bracket group comprising a first bracket and a second bracket disposed on both sides of the conveying track; An emergency stop pull rope disposed between the first bracket and the second bracket and connected to the emergency stop switch; The emergency stop switch is used to generate a trigger signal to control the conveying track to stop working if it detects that the tension of the emergency stop rope connected to it is greater than or equal to the preset tension.

2. The emergency stop interlocking safety device according to claim 1, characterized in that: Also includes: A relay connected to the emergency stop switch, configured to send the trigger signal and the first identifier of the emergency stop switch to a programmable logic controller PLC after detecting the trigger signal generated by the emergency stop switch; The PLC is used to search for the second identifier of the motor controller of the baling machine, the third identifier of the motor controller of the packaging machine, and the fourth identifier of the motor controller of the conveying track corresponding to the first identifier from the correspondence between the identifier of the preset emergency stop switch and the identifier of the motor controller of the baling machine, the identifier of the motor controller of the packaging machine, and the identifier of the motor controller of the conveying track; send an emergency stop signal to the motor controller with the second identifier, the motor controller with the third identifier, and the motor controller with the fourth identifier; the emergency stop signal is used to instruct the motor controller with the second identifier, the motor controller with the third identifier, and the motor controller with the fourth identifier to stop operating.

3. The emergency stop interlocking safety device according to claim 1, characterized in that: The number of the emergency stop pull ropes arranged in the bracket group is two; among them, the vertical distance between one of the emergency stop pull ropes and the conveying track is the sum of the maximum height of the pulp bag and the set value; the vertical distance between the other emergency stop pull rope and the conveying track is [80cm, 100cm].

4. The emergency stop interlocking safety device according to any one of claims 1 to 3, characterized in that: The first bracket and the second bracket in the bracket group are located in the same plane, and the plane is perpendicular to the plane where the conveying track is located.

5. The emergency stop interlocking safety device according to any one of claims 1 to 3, characterized in that: The emergency stop pull rope is perpendicular to the moving direction of the conveying track, and the emergency stop pull rope is parallel to the conveying track.

6. The emergency stop interlocking safety device according to any one of claims 1 to 3, characterized in that: The bracket group is arranged on the columns of the walking platform located on both sides of the conveying track.

7. The emergency stop interlocking safety device according to any one of claims 1 to 3, characterized in that: The emergency stop pull rope is connected to an emergency stop switch, and the emergency stop switch is arranged at one end of the emergency stop pull rope.

8. The emergency stop interlocking safety device according to claim 1, characterized in that: The tension of the emergency stop pull rope is set to 50N±5%.

9. The emergency stop interlocking safety device according to claim 2, characterized in that: One emergency stop pull rope is connected to a plurality of emergency stop switches; the PLC is also used for: From the preset correspondence between the identifier of the emergency stop pull rope and the identifier of the emergency stop switch, searching for the fifth identifier of the emergency stop pull rope corresponding to the first identifier; From the preset correspondence between the identifier of the emergency stop pull rope and the identifier of the emergency stop switch, searching for the target identifier of the emergency stop switch corresponding to the fifth identifier; If the first identifier includes all of the target identifiers, the step of sending an emergency stop signal to the motor controller having the second identifier, the motor controller having the third identifier, and the motor controller having the fourth identifier is executed.

10. The emergency stop interlocking safety device according to claim 9, characterized in that: The PLC is also used to: If the first identifier does not include all of the target identifiers, the trigger signal is not responded to.

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