CN207118590U - A kind of control device for preventing slicer leakage from cutting - Google Patents

Abstract

The utility model provides a control device for preventing missed cutting of a slicer, which comprises a PLC controller, a laser range finder connected with the PLC controller, a conveyor belt motor, and a push plate reducer. The laser range finder is installed on the cutter The knife guard is located directly above the bottom belt. When the laser rangefinder detects the preset distance from the smoke stack conveyed on the bottom belt to the laser rangefinder, the PLC controller sends a control signal to the conveyor belt motor that drives the bottom belt to run. , the bottom belt stops moving, and at the same time sends a control signal to the push plate reducer that drives the push plate to control the push plate to start moving. The utility model has the advantages of reasonable design, simple structure, easy production and convenient maintenance, and solves the problem of missed cutting of the whole pack of cigarettes; eliminates potential safety hazards caused by manual processing due to shutdown; ensures stable flow rate of the slicer, and provides a solid and reliable process for subsequent processing condition.

Description

A control device for preventing slicer from missing cutting

technical field

The utility model relates to the field of tobacco-making machinery control, in particular to a control device for preventing the slicer from missing cutting.

Background technique

The push plate vertical slitting machine is the main equipment on the tobacco rehydration line of the tobacco thread and leaf treatment section. It is a new technology developed with the popularization and use of the leaf threshing and redrying technology in my country. It is used in the tobacco shred production line, which is to cut the tobacco stack after the leaf tobacco box has been removed from the box after threshing and rebaking, and then the tobacco block is loosened and dampened by the tobacco loosening and dampening equipment.

The work of the slicer is divided into four stages, namely the stages of material preparation, feeding, cutting and unloading. As shown in Figure 1, the cigarette packs are transported by the conveying equipment until the first measuring cigarette pack photoelectric switch 1 is blocked, the cigarette packs stop running, and the material preparation stage is completed. When the downstream mechanism is short of material, the bottom belt 5 works to send the cigarette bale to the designated position until the second measuring cigarette bale photoelectric switch 3 is blocked, the bottom belt 5 stops running, and the function of the cigarette bale height photoelectric switch 2 is to judge the slitting Way. The bracket 7 rotates to the horizontal position, the push plate 4 is driven by two groups of cylinders, the two doors are closed, and the synchronous toothed belt is driven by the reducer, and an encoder is installed on the driving shaft to accurately control the moving distance of the push plate 4. That is to say, it drives the cigarette package to move to the designated position and completes the feeding stage. The baffle plate 8 is driven by the double cylinder, the baffle plate 8 moves to the designated position in the guide rail on the frame, and the cutter 6 is dragged down by the double cylinder to cut the cigarette package, and the material cutting stage is completed. When the downstream mechanism lacks material, the bracket 7 turns back to the original position, the baffle plate 8 returns to the original position, the cutter 6 rises, and the unloading stage is completed. The above four stages are carried out alternately. Each of the above agencies acts very fast, only a few seconds, and most of the time is spent preparing and testing the operating conditions of the actuator.

The problem existing in the operation of the slicer in the prior art is: the model of the photoelectric switch 3 for measuring the second measuring cigarette pack in the prior art is E3JM-10M, which belongs to the through-beam photoelectric switch and consists of a transmitting device and a receiving device , in practical application, the connecting screw of the transmitting device and the receiving device is loosened. Nearby, it is easy to be blocked by scattered broken blades to send wrong signals and cause malfunctions. Like this in the production process slicer often can cause the conveyor belt not to stop in time because of the wrong signal of the second measurement cigarette bale photoelectric switch 3, the phenomenon that whole bale tobacco leaf misses cutting occurs, thereby causes downtime, affects product quality. When the whole bale of tobacco leaves is stuck between the slicer and the feeding belt, the slicer must be stopped, and it is necessary to manually enter the slicer for cleaning. Changes will seriously affect the quality of subsequent processing online.

Contents of the invention

The utility model provides a control device for preventing missing cutting of a slicer, which can solve the problem of missing cutting of a whole pack of cigarettes, and eliminate potential safety hazards caused by manual processing due to shutdown.

A control device for preventing missed cutting of a slicer, comprising a PLC controller, a laser rangefinder connected to the PLC controller, a conveyor belt motor, and a push plate reducer, the laser rangefinder is installed on a cutter guard, And it is located directly above the bottom belt. When the laser range finder detects the preset distance from the smoke stack conveyed on the bottom belt to the laser range finder, the PLC controller sends a control signal to the conveyor belt motor that drives the bottom belt to run, and the bottom belt is Stop the action, and at the same time send a control signal to the push plate reducer that drives the push plate to control the push plate to start moving.

Further, a fixed bracket is installed directly under the knife guard frame, and the laser range finder is installed on the fixed bracket.

Further, the laser range finder is a CMOS laser displacement sensor.

Further, the model of the CMOS laser displacement sensor is ZX2-LD100.

Further, it also includes a first measuring cigarette pack photoelectric switch and a cigarette pack height photoelectric switch connected to the PLC controller, the first measuring cigarette pack photoelectric switch is set at the end of the feeder, and the cigarette pack height photoelectric switch is set at The bottom belt is directly above and higher than the height of the conveying stack.

The utility model has the advantages of reasonable design, simple structure, easy production and convenient maintenance, and solves the problem of missed cutting of the whole pack of cigarettes; eliminates potential safety hazards caused by manual processing due to shutdown; ensures stable flow rate of the slicer, and provides a solid and reliable process for subsequent processing condition.

Description of drawings

Fig. 1 is the structural representation of existing microtome;

Fig. 2 is the structure schematic diagram of the control device of the utility model that prevents the slicer from missing cutting;

Fig. 3 is a schematic circuit diagram of the utility model.

In the figure: 1—the photoelectric switch for the first measurement of the cigarette pack; 2—the photoelectric switch for the height of the cigarette pack; 3—the photoelectric switch for the second measurement of the cigarette pack; 4—the push plate; 5—the bottom belt; 6—the cutter; 7—the bracket ;8—baffle plate; 9—slicer knife guard; 10—laser range finder; 11—PLC controller; 12—conveyor belt motor; 13—push plate reducer; 14—cutter cylinder; 15—fixed bracket .

Detailed ways

The technical solution in the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the utility model.

The utility model provides a control device for preventing slicers from missing cutting, as shown in Figure 2, the device includes a PLC controller 11, a laser range finder 10 connected with the PLC controller 11, a conveyor belt motor 12, a push plate Reducer 13, cutter cylinder 14, photoelectric switch 1 for the first measuring cigarette pack, photoelectric switch 2 for cigarette pack height.

Described laser rangefinder 10 is CMOS laser displacement sensor, and model is ZX2-LD100, and this electrical component has following characteristics: a, adopt Omron's unique HSDR-CMOS (High Speed and Dynamic Range) image sensor and the no difference of laser energy Adjustment algorithm; b. No matter metal or circuit board, rubber, transparent body, it can measure stably for any color and surface state; c. The emission beam also adopts linear beam, and the corresponding unique light receiving lens is optimized. Therefore, stable measurement is possible even when the workpiece is moving.

Install the fixed bracket 15 directly below the cutter guard 9. The laser range finder 10 is installed on the fixed bracket 15, and the detection distance is set to 600mm. The rangefinder 10 sends detection signals to the PLC controller 11, and the PLC controller 11 sends a control signal to the conveyor belt motor 12 that drives the bottom belt to run, and the bottom belt stops moving, and simultaneously sends a control signal to the pusher that drives the push plate 4 to move. Plate reducer 13 controls the push pedal to start action; otherwise, when the push pedal stops running, the bottom belt moves, and the bottom belt and the push pedal are interlocking. After the improvement, the slicer runs stably, achieving the purpose of stabilizing the moisture and temperature of the leaves at the outlet of the loosening moisture.

Claims (5)

1. A kind of 1. control device for preventing slicer leakage from cutting, it is characterised in that：Including PLC (11) and PLC (11) laser range finder (10) of connection, conveying translator (12), push pedal reductor (13), laser range finder (10) installation In cutting knife shield knife rest (9), and directly over tail band, when laser range finder (10) detects the cigarette pile conveyed on tail band to laser When rangefinder (10) is pre-determined distance, PLC (11) sends conveying translator of the control signal to driving tail band operating (12), tail band is stopping action, is simultaneously emitted by push pedal reductor (13) of the control signal to driving push pedal (4) action, control pushes away Plate (4) starts to act.
2. 2. the control device as claimed in claim 1 for preventing slicer leakage from cutting, it is characterised in that：Under cutting knife protects knife rest (9) just Side is provided with fixed support (15), and the laser range finder (10) is installed on fixed support (15).
3. 3. the control device as claimed in claim 1 for preventing slicer leakage from cutting, it is characterised in that：The laser range finder (10) For CMOS laser displacement sensors.
4. 4. the control device as claimed in claim 3 for preventing slicer leakage from cutting, it is characterised in that：The CMOS laser displacements pass The model ZX2-LD100 of sensor.
5. 5. the control device as claimed in claim 1 for preventing slicer leakage from cutting, it is characterised in that：Also include and PLC (11) the first measurement cigarette bag optoelectronic switch (1), the cigarette bag height optoelectronic switch (2) of connection, the first measurement cigarette bag photoelectricity are opened Close (1) and be located at feeding machine end, the cigarette bag height optoelectronic switch (2) is higher than the height of conveying cigarette pile directly over tail band Degree.