CN211997512U

CN211997512U - Tobacco caching area safety device

Info

Publication number: CN211997512U
Application number: CN202020638080.4U
Authority: CN
Inventors: 王涛; 张东宁; 张进鸿; 杨桓; 韩少龙; 张盛斌
Original assignee: Hebei Baisha Tobacco Co Ltd
Current assignee: Hebei Baisha Tobacco Co Ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-11-24
Anticipated expiration: 2030-04-24

Abstract

The utility model belongs to the technical field of the production safety, a tobacco leaf buffer memory safety device is provided locates tobacco leaf buffer memory, include: the system comprises a protective fence, an access control module, a control module and an alarm module connected with the control module; the protective fence surrounds the buffer belt conveyor, the feeding shuttle car and the discharging shuttle car in an annular arrangement; maintenance areas for accommodating maintenance equipment and/or maintenance personnel are respectively arranged between the feeding shuttle car and the protective fence and between the discharging shuttle car and the protective fence; the access control module is arranged on at least one boundary of the overhaul region; the control module receives a trigger signal of the entrance guard module, provides an alarm signal for the alarm module, and provides a stop signal for the buffer belt conveyor, the feeding shuttle car or the discharging shuttle car in the protective fence. The utility model is used for satisfy the safety control requirement in tobacco leaf buffer memory district workshop, simultaneously, guarantee production efficiency.

Description

Tobacco caching area safety device

Technical Field

The utility model belongs to the technical field of the production safety, especially, relate to a buffer zone safety device for industrial production.

Background

The material buffer area is a place for temporarily storing materials in a material transition gap between two production steps in standardized production management, particularly in cut tobacco production, the tobacco leaf buffer area is a main part of tobacco leaf shredding equipment and comprises a plurality of buffer belt conveyors arranged in parallel and used for temporarily storing tobacco packets with different labels, one end of the buffer belt conveyor is provided with a feeding shuttle car for transferring the tobacco packets from the feeding belt conveyor to a designated buffer belt conveyor, the other end of the buffer belt conveyor is provided with a discharging shuttle car for conveying the tobacco packets of the designated buffer belt conveyor to the discharging belt conveyor, and the feeding shuttle car and the discharging track shuttle car are provided with tobacco packets which are conveyed in a direction orthogonal to the moving direction of the track and used for conveying the materials on one side of the track of the shuttle car to the other side of the track. The material that tobacco leaf buffer memory was kept in or was transmitted is open tobacco bale, often scatter the tobacco leaf in the transportation inside to the buffer memory, need in time manual cleaning to collect, each transmission equipment of tobacco leaf buffer memory all has independent drive arrangement and arresting gear, can be independent operation respectively under the control of centralized control ware, based on the continuity of production, most cleans the moment of collecting, each transmission equipment's centralized control ware is operating condition, there is great potential safety hazard when operating personnel is close transmission equipment.

The shuttle cars used in most of the tobacco caching areas are generally straight shuttle cars, effective safety detection equipment is lacked, due to the function of the tobacco logistics system where the shuttle cars are located, the shuttle cars are embedded into the whole logistics system and reciprocate among other equipment, the shuttle cars run at a high speed of 120-160m/min, the running tracks cross between the three-dimensional warehouse and the production conveying lines, and maintenance personnel or other operating personnel inevitably enter the running tracks of the shuttle cars when handling the faults of the logistics system, and the safety of the maintenance personnel is seriously threatened. In actual production activities, the normal operation of the shuttle car is not influenced, and the safety of maintenance personnel or goods entering the operation area of the shuttle car can be effectively protected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tobacco leaf buffer zone safety device for satisfy the safety control requirement in tobacco leaf buffer zone workshop, simultaneously, guarantee production efficiency.

The utility model discloses a following a plurality of embodiments provide a tobacco leaf buffer memory safety device for tobacco leaf buffer memory, it includes: the system comprises a protective fence, an access control module, a control module and an alarm module connected with the control module; the protective fence surrounds the buffer belt conveyor, the feeding shuttle car and the discharging shuttle car in an annular arrangement; maintenance areas for accommodating maintenance equipment and/or maintenance personnel are respectively arranged between the feeding shuttle car and the protective fence and between the discharging shuttle car and the protective fence; the access control module is arranged on at least one boundary of the overhaul region; the control module receives the trigger signal of the entrance guard module, provides an alarm signal for the alarm module and provides a stop signal for the buffer belt conveyor, the feeding shuttle car or the discharging shuttle car in the protective fence. In the embodiments, the access control module is configured to send a trigger signal when a person enters or exits from the maintenance, and the control module is configured to remind relevant workshop personnel of paying necessary careful attention through the alarm module after receiving the trigger signal sent by the access control module at a specific position, and send a shutdown signal to operating equipment near the access control module, so that the relevant equipment is shutdown instead of all the equipment, so as to ensure that when an operator in one maintenance area cleans and collects scattered tobacco leaves, the operation of the relevant transmission equipment is stopped, the safety of the personnel is guaranteed, and meanwhile, other maintenance areas can continue to respond to an operating instruction because of no maintenance work.

In one embodiment, the access control module comprises a first access control module located on a boundary of the service area near the protective fence. The first access control module is used for detecting whether a person enters the overhaul region from one direction outside the protection fence or exits from the overhaul region to one direction outside the protection fence, and providing a corresponding trigger signal. These signals may be one or a combination of more of the prior art techniques of pulsing, state retention, counting, based on communication frames carrying identification signals, etc.

In some embodiments, the protective fence is provided with an access door on one side of the feeding shuttle vehicle and/or one side of the discharging shuttle vehicle, the access door is opened to the access area, and the first access control module is arranged on the access door. In other embodiments, a maintenance channel which is only communicated with the maintenance area and outside the protection fence is arranged in the protection fence, and equivalently, the first access control module can also be arranged at two ends or the middle position of the maintenance channel so as to obtain an accurate trigger signal.

In one embodiment, the access control module comprises a second access control module disposed on a boundary of the service area proximate to the infeed shuttle or the outfeed shuttle. The second gate inhibition module is used for detecting that personnel enter a range near the buffer belt conveyor from one boundary of the maintenance area or exit from the range near the buffer belt conveyor to the maintenance area.

In some embodiments, one boundary of the service area near the in-feed shuttle or the out-feed shuttle is a track of the in-feed shuttle or the out-feed shuttle. That is, when a person is located on or passes through the track of the in-feed shuttle or out-feed shuttle from the service area, the second door access module will send a trigger signal.

In some embodiments, the access control module comprises a signal transmitter and a signal receiver. The access control modules judge whether the signal transmitter and the signal receiver are shielded or not by judging whether the signal receiver receives a signal sent by the signal transmitter or not or judge whether a specified mechanical action is generated or not to send a trigger signal. Such as a correlation photoelectric tube, an inductive proximity switch, etc.

In some embodiments, the access door is disposed at a feeding belt conveyor of the tobacco caching area, or at a discharging belt conveyor of the tobacco caching area. The feeding belt conveyor or the discharging belt conveyor can conveniently enter the overhaul area, and the requirement of safety management is further met. Preferably, the alarm module is arranged at the access door, so that when people go in and out of the access area, the working states of other access areas or other access areas can be noticed, and the requirements of safety management regulations can be met.

In some embodiments, an unlocking device is included that provides an unlocking signal to the control module. These devices are used for the control module to release an overall working state in one configuration and switch into the next working state, i.e. for the control module provided with a state machine comprising a plurality of states, the unlocking signal provides at least one complete state switching condition or participates in logic operation as a parameter of a complete state switching condition.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a safety arrangement can be under the condition that does not influence the normal operating of shuttle, the safety of effectual protection personnel or goods when getting into the shuttle operation region. In some specific embodiments, the protection that the faulty operation action of non-normative personnel is firstly prompted by voice sound and light alarm and then tripped for power failure can be added, and the unlocking button is arranged at the position, which is not easy to be found by people, on the inner side of the access door, so that the safety and the operation reliability of the tobacco caching area are improved, the structure is simple, and the cost is low.

Drawings

Fig. 1 is a schematic diagram of the setting positions of the devices in the cache area according to the first embodiment of the present invention;

FIG. 2 is a schematic diagram of the module connections of the electrical system of the embodiment of FIG. 1;

FIG. 3 is a schematic view of an access door in the embodiment of FIG. 1;

fig. 4 is a schematic diagram of the setting positions of the devices in the cache area according to the second embodiment of the present invention;

FIG. 5 is a schematic diagram of the module connections of the electrical system of the embodiment of FIG. 4;

wherein, 11, feeding belt conveyer, 12, buffer memory belt conveyer, 13, ejection of compact belt conveyer, 21, feeding shuttle, 22, ejection of compact shuttle, 23, track, 30, protection rail, 31, feeding maintenance area, 32, ejection of compact maintenance area, 33, access door, 40, control module, 41, first entrance guard's module, 42, second entrance guard's module, 43, alarm module, 44, signal transmitter, 45, signal receiver.

Detailed Description

It should be noted that, for the existing material buffer area, the material state is unchanged, and a large amount of local material collection or maintenance work for the material buffer area is not needed, but for the material in the tobacco shred workshop, because the process limits that the tobacco packet from the feeding belt conveyor is open, the accumulation of tobacco leaves scattered can affect the operation of equipment due to the mechanical movement of midway transfer, but frequent overall halt can affect the production progress, and no halt can hardly perform safety management, so the technical problem is special for the tobacco shred production. Generally, cigarette packets on a mixed village belt conveyor are of the same label, and when the integrated controller receives a cigarette packet which outputs a specified label, the integrated controller sends a running instruction to a specific cache belt conveyor and controls the shuttle vehicle to run out in a matched mode.

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Example one

Referring to fig. 1 to 3, the embodiment is a tobacco caching area safety device, which includes a protection fence 30 composed of guard rails disposed around the caching belt conveyor 12, the feeding shuttle 21 and the discharging shuttle 22. The feeding belt conveyor 11 conveys cigarette packets from the outside of the protective fence 30 to the protective fence 30, the track 23 of the feeding shuttle 21 and the discharging shuttle 22 is basically orthogonal to the transmission direction of the buffer belt conveyor 12 in the protective fence 30, a rectangular discharging overhaul area 32 and a rectangular discharging overhaul area 33 are respectively arranged between the feeding shuttle 21 and the discharging shuttle 22 and the protective fence 30, three boundaries of the two overhaul areas are the protective fence 30, and the other boundary is the track 23 of the shuttle. In some embodiments, more than two service areas may be provided, but the boundaries of the service areas include at least a portion adjacent to the track and a portion adjacent to the guard rail 30. One boundary of the service area near the in-feed shuttle 21 or out-feed shuttle 22 is the track 23 of the in-feed shuttle 21 or out-feed shuttle 22.

In this embodiment, the protection fence 30 is provided with two access doors 33 that open at feeding belt conveyer 11 department and ejection of compact belt conveyer 13 punishment respectively, and access door 33 comprises diaphragm and riser welding, is close to as the access area monitoring point on a border of protection fence is provided with first access control module 41. The stand is respectively established to access door 33 both sides, and the stand riveting is on the access door, is equipped with signal transmitter 44 and signal receiver 45 respectively in relative position on the stand, opens and shuts according to the access door, and signal receiver 45 is in can receiving or can not receive signal transmitter 44's state to send triggering signal according to the state. The signal transmitter 44 and the signal receiver 45 may be a correlation wireless photocell, or a metal detection block and an opposing inductive wireless proximity switch. The access door is also provided with an alarm module 43 with a voice sound and light alarm function. The first door control module 41 of the embodiment is arranged on the upright column, so that a user can be sensed quickly, and an alarm is given for reminding. In an embodiment using the correlation photoelectric tube, each signal transmitter is installed on one side of an upright post for opening an access door, a signal receiver is installed on the upright post of a fixed door frame, the signal receiver of the first access control module converts an obtained photoelectric signal into an electric signal and wirelessly transmits the electric signal to the control module, the control module is connected with the alarm module, the control module is configured to receive and judge a trigger signal borne by the electric signal provided by the signal receiver, and when the signal receiver cannot receive the optical signal sent by the signal transmitter, the shuttle car in a corresponding access area is controlled to stop running, and the alarm module is controlled to give an alarm. In one embodiment using inductive wireless proximity switches, condition monitoring may be implemented practically and reliably using appropriate technologies such as IO-Link, multi-protocol Ethernet, wireless signal transmission, or cloud solutions.

In this embodiment, the control module is a PLC control box, a delay controller is arranged in the control module, the delay controller is connected with a low-voltage side power supply of the PLC control box, the inductive wireless proximity switch and the voice sound and light alarm module, a control node of the delay controller is connected with a breaker opening tripping coil on a high-voltage side of the PLC control box, and an unlocking button serving as an unlocking device is arranged on the inner side of the lower right corner of the access door for providing an unlocking signal by the control module 40. The time delay controller is used for realizing a time delay tripping protection function, so that the shuttle car is in time delay power-off after being stopped, and equipment impact caused by instant stop is prevented.

The control module 40 provides a shutdown signal to the buffer belt conveyor 13, the infeed shuttle 21, or the outfeed shuttle 22 within the guard fence 30 via the centralized controller.

The access door is arranged at the feeding belt conveyor of the tobacco caching area, or at the discharging belt conveyor of the tobacco caching area.

The working principle of one aspect of the embodiment is as follows: under the non-maintenance working condition, the cigarette packet after the carton is taken off enters the feeding belt conveyor 11, the feeding shuttle vehicle 21 moves to drive the cigarette packet to enter one of the buffer belt conveyors 12 arranged in a flat shape, when the next process needs materials, the centralized controller receives a discharging signal, the appointed buffer belt conveyor 12 is driven to operate, and the discharging shuttle vehicle 22 is controlled to move to the position of the buffer belt conveyor 12 and then drive the cigarette packet to enter the next process from the discharging belt conveyor. The access doors 33 at the two ends of the protective fence 30 can be independently opened, and when people enter one of the access areas, the operation of the shuttle car at the position is stopped, so that the track cleaning risk is reduced.

The protection that the abnormal personnel misoperation acts by voice sound and light alarm firstly and then trip power failure is added, and potential safety hazards during equipment maintenance of operators are eliminated; meanwhile, the method can be used for automatic control of safety management without manual intervention.

Example two

The present embodiment is a tobacco buffering area safety device, as shown in fig. 4 and 5, and the present embodiment is different from the second embodiment in that the present embodiment includes a second door control module 42 disposed on one boundary of the

repair areas

31 and 32 near the feeding shuttle 21 and the discharging shuttle 22. Specifically, the connection line between the signal transmitter 44 and the signal receiver 45 of the second door lock module 42 is located on the side of the track 23 close to the buffer belt conveyor 12, so as to provide a trigger signal when a person passes by.

EXAMPLE III

The embodiment is a tobacco caching area safety device, and the difference between the first embodiment and the second embodiment is that the protection fence comprises an electronic fence, and on the premise of safety management regulation, when the non-access door approaches the protection fence to a certain distance, the electronic fence provides an extra trigger signal, so that electronic safety management is facilitated.

Claims

1. The utility model provides a tobacco leaf buffer memory safety device locates tobacco leaf buffer memory, its characterized in that includes: the system comprises a protective fence, an access control module, a control module and an alarm module connected with the control module; the protective fence surrounds the buffer belt conveyor, the feeding shuttle car and the discharging shuttle car in an annular arrangement; maintenance areas for accommodating maintenance equipment and/or maintenance personnel are respectively arranged between the feeding shuttle car and the protective fence and between the discharging shuttle car and the protective fence; the access control module is arranged on at least one boundary of the overhaul region; the control module receives the trigger signal of the entrance guard module, provides an alarm signal for the alarm module and provides a stop signal for the buffer belt conveyor, the feeding shuttle car or the discharging shuttle car in the protective fence.

2. The tobacco caching area safety device of claim 1, wherein: the access control module is including locating the maintenance area is close to the first access control module on a border of protection rail.

3. The tobacco caching area safety device of claim 2, wherein: the protective fence is provided with an access door leading to the maintenance area on one side of the feeding shuttle vehicle and/or one side of the discharging shuttle vehicle, and the first access control module is arranged on the access door.

4. The tobacco caching area safety device of claim 1, wherein: the access control module comprises a second access control module which is arranged on one boundary of the overhaul area close to the feeding shuttle or the discharging shuttle.

5. The tobacco caching area safety device of claim 4, wherein: one boundary of the overhaul region close to the feeding shuttle car or the discharging shuttle car is a track of the feeding shuttle car or the discharging shuttle car.

6. The tobacco caching area safety device of claim 1, wherein: the entrance guard module comprises a signal transmitter and a signal receiver.

7. The tobacco caching area safety device of claim 3, wherein: the access door is arranged at the feeding belt conveyor of the tobacco caching area, or at the discharging belt conveyor of the tobacco caching area.

8. The tobacco caching area safety device of claim 3, wherein: the alarm module is arranged at the access door.

9. The tobacco caching area safety device of claim 1, wherein: an unlocking device is included that provides an unlocking signal to the control module.