Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides digital printing equipment which has high precision and uses ceramic powder.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
A digital printing apparatus using ceramic powder, characterized in that: the automatic feeding device comprises a base, a blanking mechanism and a control device, wherein the base comprises a conveying device; the blanking mechanism is arranged above the conveying device and comprises a hopper and an integrated pneumatic device for controlling the hopper to blanking; the hopper comprises a storage cavity for storing powder and a funnel cavity arranged below the storage cavity, a plurality of release openings capable of being communicated with the storage cavity and the funnel cavity are arranged between the storage cavity and the funnel cavity, blanking openings are arranged at the bottom end of the funnel cavity, and the release openings are distributed in the same horizontal direction of the same side of the hopper and are arranged side by side at equal intervals; the integrated pneumatic device comprises a shell, a plurality of metal pistons and electromagnetic valves, wherein the metal pistons are arranged in the shell, the electromagnetic valves are used for controlling the metal pistons, the front part of the shell is provided with a telescopic part connected with the metal pistons, the end part of the telescopic part is fixedly connected with a leakage plug, the leakage plug is provided with a downward through hole, the leakage plug is inserted into the release openings to control the opening and the closing of the release openings, and each release opening is controlled by one leakage plug; the control device is connected with the conveying device and the electromagnetic valve.
As an improvement of the technical scheme, a baffle is arranged between the metal piston and the telescopic part of the shell, and the end part of the metal piston is connected with an elastic part; the shell is internally provided with an air channel, the air channel comprises an air inlet channel and an air outlet channel, the shell is provided with a plurality of air inlets communicated with the air inlet channel, a plurality of air outlets communicated with the air outlet channel and a plurality of connecting ports communicated with the metal piston, and the shell is also provided with a total air inlet communicated with the air inlet channel and a total air outlet communicated with the air outlet channel; and one electromagnetic valve controls the opening and closing of at least one air inlet, air outlet and connecting port.
As a further improvement of the technical scheme, at least two rows of metal pistons are arranged in the shell, each row is provided with a plurality of metal pistons, and the metal pistons of two adjacent upper and lower rows are arranged in a vertically staggered mode; the through holes of the plurality of leakage plugs are on the same horizontal plane.
Further, a stroke adjusting mechanism for adjusting the movement stroke of the telescopic part is arranged on the baffle plate, and the telescopic part is provided with a step part which is abutted with the stroke adjusting mechanism.
Further, the upper end face of the leakage plug is abutted against the upper end face of the release opening, the upper end face of the leakage plug is provided with an upward protruding rib, and the leakage plug comprises a U-shaped cross section; the protruding rib surrounds an upper end face of the release opening.
Further, a plurality of release openings are symmetrically arranged on two sides of the hopper.
Further, the integrated pneumatic device is fixedly connected to the hopper through the shell.
Further, install a plurality of material jar above the hopper, the material jar bottom be equipped with the connecting pipe of storage cavity intercommunication.
The beneficial effects of the invention are as follows: the digital printing equipment using the ceramic powder comprises a base, a blanking mechanism and a control device, wherein the base comprises a conveying device; the blanking mechanism is arranged above the conveying device and comprises a hopper and an integrated pneumatic device for controlling the hopper to blank; the digital printing equipment is used for printing on the brick surface of the ceramic tile, different points are controlled by the integrated pneumatic device to be blanked simultaneously, the control device controls different release openings to carry out blanking and blanking time by using the integrated pneumatic device, and the control device is matched with the conveying device to drive the brick body to move, so that different patterns are formed on the brick surface, namely printing; the integrated pneumatic device comprises a shell, a plurality of metal pistons arranged in the shell and an electromagnetic valve for controlling the metal pistons, the integrated pneumatic device integrates a plurality of metal pistons, the multi-metal pistons independently work through a unique air passage structure in the device and the electromagnetic valve, the air passage connection is simplified, the whole device is small in size, and the space position is efficiently utilized.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Referring to fig. 1,2, 3 and 4, a digital printing apparatus using ceramic powder includes a base 1, a discharging mechanism 2, and a control device 3, the base 1 including a conveying device 11; the blanking mechanism 2 is arranged above the conveying device 11, and the blanking mechanism 2 comprises a hopper 4 and an integrated pneumatic device 5 for controlling the hopper 4 to blank; the hopper 4 comprises a storage cavity 41 for storing powder and a funnel cavity 42 arranged below the storage cavity 41, a plurality of release openings 43 which can be communicated with the storage cavity 41 and the funnel cavity 42 are arranged between the storage cavity 41 and the funnel cavity 42, blanking openings 421 are arranged at the bottom end of the funnel cavity 42, and the release openings 43 are distributed in the same horizontal direction on the same side of the hopper 4 and are arranged side by side at equal intervals; the integrated pneumatic device 5 comprises a shell 51, a plurality of metal pistons 52 arranged in the shell 51 and an electromagnetic valve 53 for controlling the metal pistons 52, wherein a telescopic part 54 connected with the metal pistons 52 is arranged at the front part of the shell 51, a leakage plug 55 is fixedly connected to the end part of the telescopic part 54, the leakage plug 55 is provided with a downward through hole 551, the leakage plug 55 is inserted into the release opening 43 to control the opening and closing of the release opening 43, and each release opening 43 is controlled by one leakage plug 55; the control device 3 is connected to the conveyor device 11 and the solenoid valve 53.
The digital printing equipment is used for printing on the brick surface of a ceramic tile, the storage cavity 41 of the hopper 4 stores ceramic powder, the leakage plug 55 of the integrated pneumatic device 5 is inserted into the release opening 43, the leakage plug 55 plugs the release opening 43 in normal state, the metal piston 52 drives the telescopic part 54 to move when the ceramic powder is required to be discharged, the leakage plug 55 is driven to move, when the through hole 551 on the leakage plug 55 moves to the release opening 43, the upper end surface and the lower end surface of the release opening 43 are communicated, the ceramic powder falls into the funnel cavity 42 from the storage cavity 41 through the through hole 551, finally, the ceramic powder is discharged from the discharge opening 421, the required pattern to be printed is input into the control device 3, the control device 3 controls different release openings 43 to carry out discharging and discharging time by utilizing the integrated pneumatic device 5, the control device 11 drives the brick body to move, different patterns are formed on the brick surface, namely printing is realized, and as the ceramic powder is used for printing, the thickness size of the pattern is controlled, and the printed pattern is a three-dimensional pattern, namely 3D printing is realized; in this embodiment, preferably, the integrated pneumatic device 5 is fixedly connected to the side edge of the blanking mechanism through the housing 51, the leakage plug 55 is transversely inserted into the release opening 43, specifically, the tile is placed on the conveying device 11, the conveying device 11 drives the tile to translate below the blanking mechanism 2, the conveying device 11 is preferably a conveying belt or a conveying frame, referring to fig. 2, a plurality of blanking mechanisms 2 are installed above the conveying device 11 in a crossing manner, the blanking openings 421 are arranged in a crossing manner perpendicular to the moving direction of the conveying device 11, that is, the positions crossing the conveying device 11 are all provided with the blanking openings 421 corresponding to ensure that the printing range of the tile surface perpendicular to the moving direction of the conveying device 11 is within the blanking range of the blanking mechanism 2, and blanking is performed at different positions simultaneously, so as to improve the printing efficiency; the brick body translates along with the conveying device 11, the control device 3 controls the conveying mechanism to perform inching movement, the conveying mechanism moves the brick body by the same distance each time, and the preferable distance of each movement is the range of the blanking point of the blanking port 421; and the control device 3 controls the blanking mechanism 2 corresponding to the position to be printed to perform blanking once, and after the horizontal printing is finished, the conveying device 11 belt moves to the next section of the position to be printed along with the brick body to align with the blanking port 421, so that the circulation is performed until the pattern printing is finished.
The shell 51 is provided with a baffle 511 between the metal piston 52 and the telescopic part 54, the end part of the metal piston 52 is connected with an elastic component, and the metal piston 2 drives the telescopic part to perform telescopic motion through the cooperation of air inlet, air exhaust and the elastic component; the housing 51 is internally provided with an air channel, the air channel comprises an air inlet channel 56 and an air outlet channel 57, the housing 51 is provided with a plurality of air inlets 561 communicated with the air inlet channel 56, a plurality of air outlets 571 communicated with the air outlet channel 57 and a plurality of connecting ports 58 communicated with the metal piston 52, and the housing 51 is also provided with a total air inlet 562 communicated with the air inlet channel 56 and a total air outlet 572 communicated with the air outlet channel 57; one of the solenoid valves 53 controls opening and closing of at least one of the air inlet 561, the air outlet 571, and the connection port 58. The elastic member is preferably a spring, in this embodiment, the elastic member is preferably connected to the tail end of the metal piston 52, and the metal piston 52 is supported towards the baffle 511 at the front of the housing 51 due to elastic force, and the expansion part 54 is in the forward-extending state, that is, the forward-extending state is the normal state of the expansion part 54; when the metal piston 52 is in air intake, the air pressure generates an acting force which is opposite to the action direction of the elastic force and is larger than the elastic force, so that the telescopic part 54 is driven to move backwards, namely, the telescopic part 54 is retracted to be in a working state, when the metal piston 52 is in an air release elastic part, the metal piston 52 is reset to a normal state through the elastic force, and meanwhile, the telescopic part 54 is driven to extend forwards; if the elastic member is connected to the front end of the metal piston 52, the operation of the telescopic portion 54 is opposite to the above, that is, the forward-extending state is the operation state of the telescopic portion 54, and the telescopic portion 54 is retracted to be normal.
Referring to fig. 5 and 6, all solenoid valves 53 are not illustrated in fig. 5, and an air channel is provided in the housing 51, wherein the air channel includes an air inlet channel 56 and an air outlet channel 57, a plurality of air inlets 561 communicating with the air inlet channel 56, a plurality of air outlets 571 communicating with the air outlet channel 57, and a plurality of connection ports 58 communicating with the metal piston 52 are provided on the housing 51, and a total air inlet 562 communicating with the air inlet channel 56 and a total air outlet 572 communicating with the air outlet channel 57 are also provided on the housing 51; a plurality of electromagnetic valves 53 are also installed on the housing 51, and one electromagnetic valve 53 controls the opening and closing of at least one air inlet 561, an air outlet 571 and a connection port 58; preferably, the air inlet 561, the air outlet 571, the connection port 58, the total air inlet 562, and the total air outlet 572 are provided at the back of the housing 51. In actual operation, the main air inlet 562 is connected with an air pipe of an external device, air enters the air inlet channel 56 through the main air inlet pipe, and the air is split into each air inlet 561 through the air inlet channel 56; preferably, one air inlet 561, one air outlet 571 and one connecting port 58 are a set of air paths, and one electromagnetic valve 53 controls the opening and closing of the set of air paths, namely, controls one metal piston 52; describing the operation of a metal piston 52 as an example, in a normal state, the electromagnetic valve 53 closes the air inlet 561, the air outlet 571 is communicated with the connection port 58 through the electromagnetic valve 53, that is, the metal piston 52 connected with the connection port 58 is communicated with the air outlet channel 57, at this time, no gas exists in the metal piston 52, and the metal piston 52 is also in a normal state; when the metal piston 52 is required to work, the electromagnetic valve 53 disconnects the communication between the air outlet 571 and the connection port 58, and opens the air inlet 561, at this time, the connection port 58 is only communicated with the air inlet 561, the air is shunted from the air inlet channel 56 to the air inlet 561, and then enters the metal piston 52 through the connection port 58, namely, the flow direction sequence of the air during working is as follows: the main air inlet 562, the air inlet channel 56, the air inlet 561, the inside of the electromagnetic valve 53, the connecting port 58 and the metal piston 52, the air finally enters the metal piston 52, and the metal piston 52 works to drive the telescopic part 54 to enter a working state; after the operation is completed, the electromagnetic valve 53 closes the air inlet 561, and simultaneously connects the air outlet 571 with the connection port 58 for air leakage, and at this time, the flow direction sequence of the air in the metal piston 52 is as follows: the metal piston 52, the connection port 58, the inside of the solenoid valve 53, the gas outlet 571, the gas outlet channel 57, the total gas outlet 572, and the gas is finally discharged to the outside environment through the total gas outlet 572. When a plurality of metal pistons 52 are required to work, corresponding solenoid valves 53 are utilized to control corresponding groups of gas paths, gas is shunted into each group of gas paths through a gas inlet channel 56 during gas inlet, gas in each group of gas paths is gathered in a gas outlet channel 57 during gas outlet and is discharged, and each solenoid valve 53 independently controls one metal piston 52. In the traditional device for working the multi-metal piston 52, each metal piston 52 is directly connected with an external air pipe, so that the air pipes are more, the structure is complex, the space occupation is large, and the cost is high; the integrated pneumatic device 5 integrates a plurality of metal pistons 52, and completes independent work of the multi-metal pistons 52 through a unique air path structure in the device and the electromagnetic valve 53, so that the whole device is small in size and efficiently utilizes the space position.
At least two rows of metal pistons 52 are arranged in the shell 51, when a plurality of metal pistons 52 are arranged in each row and two rows of metal pistons 52 are arranged, one air inlet channel 56 and one air outlet channel 57 can be arranged in the shell 51 for air supply and air exhaust, one air inlet channel 56 and one air outlet channel 57 can be respectively arranged at the upper part and the lower part in the shell 51, one total air inlet 562 is communicated with the upper air inlet channel 56 and the lower air inlet channel 56, one total air outlet 572 is communicated with the upper air outlet channel 57 and the lower air outlet channel 57, namely a plurality of rows of metal pistons 52 are arranged, and an external air pipe is not required to be additionally arranged; the metal pistons 52 of the two adjacent upper and lower rows are arranged in an up-down staggered manner, that is, in the vertical direction, one metal piston 52 of the next row is arranged in the middle of the two metal pistons 52 of the previous row, and the utilization rate of the space position in the shell 51 is maximized in an up-down staggered manner; the through holes 551 of the plurality of drain plugs 55 are on the same horizontal plane, so that the blanking heights are unified, and the blanking time of each blanking point is convenient to control.
A stroke adjusting mechanism 59 for adjusting a movement stroke of the telescopic portion 54 is provided on the shutter 511, and the telescopic portion 54 is provided with a step portion 541 which abuts against the stroke adjusting mechanism 59; the relative position between the through hole 551 of the leakage plug 55 and the release opening 43 is adjusted through the stroke adjusting mechanism 59, so that the leakage plug 55 can completely block the release opening 43 in a non-working state, and the through hole 551 and the release opening 43 can be smoothly blanked in the working state.
The upper end surface of the leakage plug 55 abuts against the upper end surface of the release opening 43, the upper end surface of the leakage plug 55 is provided with an upward protruding rib 552, and the leakage plug 55 comprises a U-shaped cross section; the protruding rib 552 surrounds the upper end surface of the release opening 43 to ensure that ceramic frit does not leak out of both sides of the drain plug 55 to affect print quality.
The two sides of the hopper 4 are symmetrically provided with a plurality of release openings 43, preferably, the two symmetrical release openings 43 carry out blanking from blanking points of the blanking port 421, and the same blanking point is formed by the two release openings 43, so that the blanking amount of the blanking point can be quickened in the same blanking time.
The integrated pneumatic device 5 is fixedly connected to the hopper 4 through the shell 51, so that the integrated pneumatic device is convenient to install and maintain.
Install a plurality of bucket 6 above the hopper 4, the bucket 6 bottom be equipped with the connecting pipe 61 of storage chamber 41 intercommunication stores ceramic powder in bucket 6, and when the ceramic powder in the storage chamber 41 of blanking mechanism 2 is insufficient, can directly open bucket 6, falls into storage chamber 41 with ceramic powder through connecting pipe 61, need not stop equipment operation and influence production efficiency for reinforced promptly.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.