Dry and wet tissue machine and control method thereof

Abstract

A dry and wet tissue machine includes: a shell, which includes a housing and a cover, a storage space being defined in the housing, and the cover being rotatably disposed on the housing and configured to open and close the storage space; a humidification mechanism, which includes a spray head, and the spray head being disposed on the housing; a conveying and pressing assembly, which includes a driver, a conveying roller and a pressing component, the conveying roller being rotatably disposed on the housing, the pressing component being disposed on the cover, and the driver being configured to drive the conveying roller to rotate; and a detection assembly, which includes an electric control board, a first photoelectric sensor and a second photoelectric sensor, the first photoelectric sensor and the second photoelectric sensor being electrically connected to the electric control board individually.

What is claimed is: 
     
         1 . A dry and wet tissue machine, comprising:
 a shell, wherein the shell comprises a housing and a cover, and a storage space and an electric compartment are defined in the housing, and the cover is rotatably disposed on the housing and configured to open and close the storage space;   a humidification mechanism, wherein the humidification mechanism comprises a spray head, and the spray head is disposed on the housing;   a conveying and pressing assembly, wherein the conveying and pressing assembly comprises a driver, a conveying roller and a pressing component, the conveying roller is rotatably disposed on the housing, the pressing component is disposed on the cover, and the driver is configured to drive the conveying roller to rotate; and   a detection assembly, wherein the detection assembly comprises an electric control board, a first photoelectric sensor and a second photoelectric sensor, and the first photoelectric sensor and the second photoelectric sensor are electrically connected to the electric control board individually;   wherein a conveying channel is defined between the cover and the housing when the cover is closed, the spray head is configured to spray water into the conveying channel, and the pressing component is pressed on the conveying roller; along a conveying direction of the conveying channel, the first photoelectric sensor, the spray head and the second photoelectric sensor are sequentially arranged in that order, and the electric control board is disposed in the electric compartment.   
     
     
         2 . The dry and wet tissue machine as claimed in  claim 1 , wherein the pressing component comprises a first press roller, and the first press roller is rotatably disposed on the cover. 
     
     
         3 . The dry and wet tissue machine as claimed in  claim 2 , wherein a number of the first press roller of the pressing component is two, and the two first press rollers are arranged side by side. 
     
     
         4 . The dry and wet tissue machine as claimed in  claim 1 , wherein the pressing component further comprises a second press roller and a pressing piece, the second press roller is rotatably disposed on the cover, and the pressing piece is disposed on the cover and is located on an inner side of the second press roller. 
     
     
         5 . The dry and wet tissue machine as claimed in  claim 1 , wherein the driver comprises a motor, a worm wheel and a worm shaft, the worm shaft is disposed on a rotating shaft of the motor, the worm wheel is connected to the worm shaft, and the worm wheel is rotatably connected to the conveying roller. 
     
     
         6 . The dry and wet tissue machine as claimed in  claim 1 , further comprises a magnetic induction switch, wherein the magnetic induction switch comprises a permanent magnet and a magnetic induction component, the permanent magnet is disposed on the cover, and the magnetic induction component is disposed on the housing and electrically connected to the electric control board; the permanent magnet and the magnetic induction component are disposed opposite to each other when the cover is closed. 
     
     
         7 . The dry and wet tissue machine as claimed in  claim 1 , further comprises a water tank assembly, wherein the water tank assembly comprises a water tank, a tank cover and a flexible pipe, the tank cover is provided with a water outlet and an air intake, and an inner surface of the tank cover is provided with a pressing type valve and an air intake check valve; the pressing type valve is in communication with the water outlet, the air intake check valve is in communication with the air intake, and the pressing type valve is configured to open the water outlet under external pressure; the flexible pipe is connected to the water outlet, and the tank cover is detachably disposed on a tank opening of the water tank;
 wherein an insertion slot is defined on the shell, and a plug pipe is disposed in the insertion slot; the humidification mechanism further comprises a water pump, a heating passage and an electric heater, the electric heater is disposed on the heating passage, and the plug pipe is connected to the spray head through the water pump and the heating passage in sequence; and   wherein the plug pipe is sealingly inserted into the water outlet and presses the pressing type valve to open the pressing type valve, when the water tank is inserted into the insertion slot.   
     
     
         8 . The dry and wet tissue machine as claimed in  claim 7 , wherein the pressing type valve comprises a mounting pipe and a glass ball, the mounting pipe is provided with an annular blocking surface, the glass ball is slidably disposed in the mounting pipe and configured to have a tendency of moving towards the annular blocking surface under an action of water flow, and the mounting pipe is in communication with the water outlet and arranged coaxially with the water outlet. 
     
     
         9 . A control method of the dry and wet tissue machine as claimed in  claim 1 , wherein a tissue of a tissue roll to be used is provided with tear lines to form a plurality of equal length tissue sections;
 the control method comprises an initial mode and a working mode;   under the initial mode, after placing the tissue roll into the storage space and closing the cover, driving the conveying roller to rotate in a forward direction or in a reverse direction by the driver, thereby making an exposed tissue end of the tissue roll move to the first photoelectric sensor; and   under the working mode, driving the conveying roller to rotate in the forward direction by the driver to make the tissue roll unroll and output the tissue, then the exposed tissue end passing sequentially through the first photoelectric sensor, the spray head and the second photoelectric sensor, and stopping driving the conveying roller to rotate after outputting a tissue section with a fixed length by the tissue roll, wherein the first photoelectric sensor and the second photoelectric sensor are electrically connected to the electric control board individually; after tearing off the output tissue section, the second photoelectric sensor being exposed and triggering the driver to drive the conveying roller to rotate in the forward direction or in the reverse direction until a tissue end moves to the first photoelectric sensor.   
     
     
         10 . The control method of the dry and wet tissue machine as claimed in  claim 9 , wherein after placing the tissue roll into the storage space and closing the cover, the initial mode specifically comprises:
 driving the conveying roller to rotate in the forward direction by the driver when the first photoelectric sensor does not detect the tissue, thereby making the tissue roll unroll and output the tissue until the exposed tissue end moves to the first photoelectric sensor;   driving the conveying roller to rotate in the reverse direction by the driver when the first photoelectric sensor detects the tissue and the second photoelectric sensor does not detect the tissue, until the exposed tissue end exposes the first photoelectric sensor out;   not starting the driver, when both the first photoelectric sensor and the second photoelectric sensor detect the tissue.