CN212313093U

CN212313093U - Multi-station ink-jet automatic printing device

Info

Publication number: CN212313093U
Application number: CN202022253404.5U
Authority: CN
Inventors: 李祥伟; 贾鹏举; 王敏
Original assignee: Shenzhen Chuangxiang Tiancheng Digital Technology Co Ltd
Current assignee: Shenzhen Chuangxiang Tiancheng Digital Technology Co Ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-01-08
Anticipated expiration: 2030-10-12

Abstract

The utility model relates to a multi-station ink-jet automatic printing device, wherein a turntable is rotatably arranged on a frame and is driven by a first servo motor; the clamping rotary fixture comprises a fixture, a rotating shaft and a second servo motor, and the fixture is driven to rotate by the second servo motor; the ink-jet printing station comprises an ink-jet assembly and a UV curing device, wherein the ink-jet assembly comprises a spray head, an ink box, an ink-jet control device, an internal circulation system and a negative pressure system, the spray head is connected with the ink box, the ink-jet control device controls the working state of the spray head, the negative pressure system is connected with the ink box and is used for adjusting the pressure condition in the ink box, and the internal circulation system is connected with the spray head and the ink box; the UV curing device is used for curing the ink on the product to be printed. The utility model discloses an automatic printing device of multistation inkjet can carry out the printing at all-round no dead angle to special-shaped products such as cylinder, circular cone class, has realized that quick, accurate and degree of automation is high polychrome multistation prints, and work efficiency is high moreover, print effectually.

Description

Multi-station ink-jet automatic printing device

Technical Field

The utility model relates to an inkjet printing device, in particular to automatic printing device of multistation inkjet.

Background

The traditional printing methods (such as silk screen printing, transfer printing and the like) are contact printing, plate making or drawing is needed, and pictures cannot be efficiently and quickly made on a workpiece to be printed at one time, so that ink-jet printing is produced. The ink-jet printing is non-contact printing, can not extrude the material, and the material can not receive the restriction yet simultaneously, but to the printing of dysmorphism products such as cylinder, circular cone class, can't satisfy the printing requirement at all-round no dead angle of this dysmorphism product. The existing printing method for the special-shaped product generally adopts a pad printing process, corresponding patterns are printed on a pad printing material firstly, then the material is combined with the product, special attention needs to be paid to positioning in the process, the material needs to be dried after combination, time, labor and space are consumed, and the high speed and accuracy of the printing process are limited. Therefore, the prior art has yet to be developed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the shortcoming that exists among the prior art, provide an automatic printing device of multistation inkjet, aim at solving traditional printing speed slow, the precision is not high and the low problem of degree of automation.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a multi-station ink-jet automatic printing device, which comprises a frame, a turntable, a first servo motor, a central control platform, a feeding manipulator, a discharging manipulator, a plurality of clamping rotary clamps and a plurality of ink-jet printing stations;

the central control platform is used for controlling the working states of the turntable, the first servo motor, the feeding manipulator, the discharging manipulator, the clamping rotary fixture and the ink-jet printing station;

the turntable is rotatably arranged on the rack and is driven by the first servo motor;

the clamping rotary fixtures are fixed on the turntable, each clamping rotary fixture comprises a fixture, a rotating shaft and a second servo motor, the fixture is connected with the second servo motor through the rotating shaft, and the second servo motor drives the fixture to rotate;

the feeding manipulator is arranged on the rack and used for mounting a product to be printed on the jig, and the discharging manipulator is arranged on the rack and used for taking down the printed product from the jig;

each ink-jet printing station comprises an ink-jet assembly and a UV curing device, the ink-jet assembly is fixedly arranged on the central control platform and comprises a spray head, an ink box, an ink-jet control device, an internal circulation system and a negative pressure system, the spray head is connected with the ink box, the ink-jet control device controls the working state of the spray head, the negative pressure system is connected with the ink box and used for adjusting the pressure condition in the ink box, and the internal circulation system is connected with the spray head and the ink box;

the UV curing device is arranged on the rack, is arranged below the spray head and is used for curing ink on a product to be printed.

Furthermore, the ink box comprises a primary ink box and a secondary ink box, the secondary ink box comprises a main ink box and a secondary ink box which are adjacently arranged, the main ink box and the secondary ink box are respectively communicated with the spray head, and the negative pressure system is connected with the main ink box;

the ink-jet control device comprises an ink supply pump, a first filter and a float switch arranged on the main ink box, wherein the first filter is arranged between the ink supply pump and the main ink box, and the ink supply pump is communicated with the main ink box;

the internal circulation system comprises a second filter, a diaphragm ink pump, a control panel and a pressure sensor, the second filter is arranged between the main ink box and the diaphragm ink pump, the other end of the diaphragm ink pump is communicated with the auxiliary ink box, the control panel is used for controlling the working state of the diaphragm ink pump, and the pressure sensor is used for detecting the pressure of the auxiliary ink box.

Further, the ink jet assembly further comprises a positive pressure air pump, an electromagnetic valve and a manual valve, wherein the positive pressure air pump is communicated with the main ink box, the electromagnetic valve is arranged between the main ink box and the spray head, and the manual valve is arranged between the auxiliary ink box and the spray head.

Further, each UV solidification equipment includes UV lamp, mount and alignment jig, the mount is fixed in the frame, the alignment jig includes support and apron, the UV lamp install in the support and by the apron partial lid closes, the one end of support with the one end of mount is passed through first pivot and is connected, the other end of support with the other end swing joint of mount, and can be relative first pivot is adjusted from top to bottom, the one end of support is provided with downwardly extending's extension board, be provided with the arc wall on the extension board, the mount is provided with the locating plate of upwards extending, the locating plate with the extension board passes through the mounting and is connected, the mounting passes the arc wall with the locating plate is connected.

Furthermore, the inkjet assembly further comprises a back plate, a Z-axis linear moving module and a rotatable support, the Z-axis linear moving module comprises a first stepping motor, a first lead screw, a slide rail and a vertical plate, the back plate is mounted on the central control platform and connected with a first positioning piece, the first positioning piece is provided with a first screw hole, the slide rail is mounted on the back plate, the vertical plate is slidably arranged on the slide rail, the first stepping motor is fixedly connected with the vertical plate, and the first lead screw is connected with an output shaft of the first stepping motor and penetrates through the first screw hole;

the vertical plate is provided with a U-shaped fixing plate and a positioning column, the rotatable support comprises a frame and an adjusting screw rod, the frame is connected with the U-shaped fixing plate through a second rotating shaft, and the adjusting screw rod penetrates through the positioning column to be connected with one side of the frame.

Furthermore, the frame comprises a left side plate, a right side plate and a transverse plate, wherein the transverse plate is provided with a through groove and guide rails arranged on two sides of the through groove;

the inkjet subassembly still includes X axis line nature mobile module, X axis line nature mobile module includes second step motor, second lead screw and slider, the slider slide set up in on the guide rail, the slider is provided with the correspondence the constant head tank that leads to the groove, the shower nozzle is worn to locate the constant head tank, and pass lead to the groove, second step motor with diaphragm fixed connection, the slider is connected with the second setting element, the second setting element is provided with the second screw, the second lead screw with the output shaft of second step motor is connected and is passed the second screw.

Further, the clamping rotary fixture further comprises a first fixing seat, a coupler and a second fixing seat, the rotating shaft penetrates through the first fixing seat, a bearing is sleeved in the first fixing seat, the rotating shaft and an output shaft of the second servo motor are connected through the coupler, and the second servo motor is fixed on the second fixing seat.

The ink receiving device comprises an ink receiving disc, an ink receiving disc fixing frame and an ink receiving disc adjusting frame, the ink receiving disc fixing frame is fixed on the rack, the ink receiving disc adjusting frame is connected with the ink receiving disc fixing frame, and the ink receiving disc is installed on the ink receiving disc adjusting frame.

Further, still include a plurality of linear sliding module, material loading manipulator, unloading manipulator respectively with linear sliding module sliding connection, be provided with the sucking disc in material loading manipulator, the unloading manipulator respectively.

Further, the inkjet printing station includes a color ink printing station Y, a color ink printing station M, a color ink printing station C, and a color ink printing station K, or the inkjet printing station includes a white ink printing station W, a color ink printing station Y, a color ink printing station M, a color ink printing station C, a color ink printing station K, and a gloss oil printing station V.

The utility model discloses beneficial effect that technical scheme has:

the utility model discloses an automatic printing device of multistation inkjet can carry out the printing at all-round no dead angle to special-shaped products such as cylinder, circular cone class, has realized that quick, accurate and degree of automation is high polychrome multistation prints, and work efficiency is high moreover, print effectually.

Drawings

FIG. 1 is a schematic structural view of the multi-station inkjet automatic printing apparatus of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is a top view of the multi-station inkjet automatic printing apparatus of the present invention;

FIG. 4 is a schematic structural view of the clamping rotary fixture of the present invention;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a schematic view of the ink jet module of the present invention;

FIG. 7 is an exploded view of FIG. 6;

fig. 8 is an exploded view of an alternative angle of the ink jet assembly of the present invention;

fig. 9 is a schematic structural diagram of the feeding manipulator of the present invention;

fig. 10 is a schematic structural view of the UV curing apparatus of the present invention;

FIG. 11 is an exploded view of FIG. 10;

FIG. 12 is a schematic structural view of the ink receiving device of the present invention;

FIG. 13 is a schematic view of the internal circulation system of the present invention;

description of reference numerals:

100-multi-station ink-jet automatic printing device, 10-frame, 20-turntable, 30-first servo motor, 40-central control platform, 50-feeding mechanical arm, 51-linear sliding module, 52-sucker, 60-blanking mechanical arm, 70-clamping rotary fixture, 71-fixture, 72-rotating shaft, 73-second servo motor, 74-first fixed seat, 75-coupler, 76-second fixed seat, 77-bearing, 80-ink-jet printing station, 81-ink-jet assembly, 82-UV curing device, 821-UV lamp, 822-fixed seat, 8221-positioning plate, 823-adjusting seat, 8231-bracket, 8232-cover plate, 8234-supporting plate, 8235-arc groove and 83-spray head, 842-a second-stage ink box, 85-an ink jet control device, 851-an ink supply pump, 852-a first filter, 861-a second filter, 862-a diaphragm ink pump, 88-a positive pressure air pump, 89-an electromagnetic valve, 801-a manual valve, 802-a back plate, 8021-a first positioning piece, 8022-a first screw hole, 803-a rotatable bracket, 8031-a frame, 8032-an adjusting screw rod, 8033-a second rotating shaft, 8034-a left side plate, 8035-a right side plate, 8036-a transverse plate, 8037-a through groove, 8038-a guide rail, 804-a first stepping motor, 805-a first screw rod, 806-a slide rail, 807-a vertical plate, 8071-a U-shaped fixing plate, 8072-a positioning column, 808-a second stepping motor, 809-a second screw rod, 810-a sliding block, 811-a positioning groove, 812-a second positioning piece, 813-a second screw hole, 90-an ink receiving device, 91-an ink receiving disc, 92-an ink receiving disc fixing frame, 93-an ink receiving disc adjusting frame and 200-a product to be printed.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "connected" may be a fixed connection or a removable connection, or may be integral therewith; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 13, the present invention provides a multi-station inkjet automatic printing apparatus 100, which includes a frame 10, a turntable 20, a first servo motor 30, a central control platform 40, a feeding manipulator 50, a discharging manipulator 60, a plurality of clamping rotary fixtures 70, and a plurality of inkjet printing stations 80;

the central control platform 40 is used for controlling the working states of the turntable 20, the first servo motor 30, the feeding manipulator 50, the discharging manipulator 60, the clamping rotary fixture 70 and the inkjet printing station 80, and can be controlled by a PLC (programmable logic controller) in an integrated manner, so that the accurate control precision is ensured, the stability of the printing quality is ensured, the automation is facilitated, and the time and the labor cost are saved;

the turntable 20 is rotatably mounted on the rack 10 and driven by the first servo motor 30;

the clamping rotary fixture 70 is fixed on the turntable 20, and when the turntable 20 rotates, the clamping rotary fixture 70 also rotates; each clamping rotary clamp 70 comprises a jig 71, a rotating shaft 72 and a second servo motor 73, the jig 71 is connected with the second servo motor 73 through the rotating shaft 72, the jig 71 is used for fixing a product 200 to be printed, and the second servo motor 73 drives the jig 71 to rotate;

the feeding manipulator 50 is mounted on the rack 10 and is used for mounting the product 200 to be printed on the jig 71, and the discharging manipulator 60 is mounted on the rack 10 and is used for taking down the printed product from the jig 71;

each ink-jet printing station 80 comprises an ink-jet component 81 and a UV curing device 82, the ink-jet component 81 is fixedly mounted on the central control platform 40, the ink-jet component 81 comprises a spray head 83, an ink box, an ink-jet control device, an internal circulation system and a negative pressure system, the spray head 83 is connected with the ink box, the ink-jet control device controls the working state of the spray head 83, can control the ink-jet time and the ink-jet quantity of the spray head 83, can spray out the required ink-jet quantity in required time, the ink in the ink box can adopt UV ink, namely the ink contains UV sensitizer, can be rapidly cured under the irradiation of the UV curing device 82, and the ink in different ink boxes can adopt different colors;

the negative pressure system is connected with the ink box and is used for adjusting the pressure condition in the ink box and avoiding the condition that ink can not flow out; the internal circulation system is connected with the spray head 83 and the ink box and is used for ensuring the normal circulation of ink, realizing the large-flow circulation in the spray head 83 and improving the stability of continuous printing;

the UV curing device 82 is installed on the machine frame 10, is arranged below the spray head 83, and is used for quickly curing ink on a product 200 to be printed, so that the ink is guaranteed to be dried immediately after printing, a drying process is not needed, and the printing speed is increased.

The working process of the multi-station inkjet automatic printing device 100 is as follows:

1. starting the multi-station inkjet automatic printing device 100, and enabling the feeding manipulator 50 to operate to place the product 200 to be printed on the jig 71;

2. the turntable 20 starts to rotate and drives the product 200 to be printed on the jig 71 to rotate to a position below the spray head 83 of the ink-jet printing station 80, the ink-jet control device controls the spray head 83 to perform ink-jet printing on the product 200 to be printed, and the UV curing device 82 cures ink sprayed and printed on the product 200 to be printed, so that first printing is completed;

3. the turntable 20 continues to rotate to enable the product 200 to be printed on the jig 71 to rotate to a position below the spray head 83 of the next ink-jet printing station 80, the second servo motor 73 drives the jig 71 to rotate, that is, the product 200 to be printed rotates to another angle, the ink-jet control device controls the spray head 83 to perform ink-jet printing on the product 200 to be printed, and the UV curing device 82 cures ink sprayed and printed on the product 200 to be printed, so that second printing is completed;

4. and repeating the step 3 until the surface of the product 200 to be printed is printed with the pattern, and ensuring that each surface of the product 200 to be printed can be printed with the pattern, so that the all-dimensional printing without dead angles is realized, the product rotates to the blanking manipulator 60 after the printing is finished, and the blanking manipulator 60 takes down the printed product, thereby finishing the printing process of a single product.

The utility model discloses an automatic printing device of multistation inkjet 100 through the polychrome printing design of multistation, has overcome traditional printing speed slow, the precision is not high, can not realize the problem of automatic printing, through accurate motion control and inkjet control, can guarantee the stable effect of printing the pattern, need not carry out the back process moreover and handle, and it is not high to require to operating personnel, alone can operate multiple equipment to use manpower sparingly, time cost. After the automatic assembly line is equipped, unmanned and intelligent modern automatic production can be realized, the production efficiency is higher, and the requirements of customization and mass production can be met.

In the present embodiment, the multi-station inkjet automatic printing apparatus 100 is suitable for inkjet printing of patterns on the surfaces of objects such as cups, round bottles, metal cans, aluminum cans, and the like, and can be applied to various materials such as metal, glass, paper, wood, plastic, and the like. Compared with the traditional printing techniques such as bat printing, silk screen printing, offset plate, the utility model has the advantages of need not platemaking, prepare before the seal simply, delivery cycle is short and can the customization print to showing and improving at short version printing, customization printing, individualized printing and the printing efficiency of packing the ocean application, can presenting high-quality diversified round vase, the round cup printed matter according to the design style moreover.

In this embodiment, the spray head 83 and the jig 71 are designed in a modular manner, so that printed parts with different specifications can be easily replaced, and adjustment can be conveniently, quickly and accurately performed. The nozzle 83 can adopt a CF3 nozzle 83, the nozzle 83 has high precision and small ink drop, and on the other hand, the number of the spray holes is also large, so that two requirements of printing precision and printing speed are met. A buffer bottle is arranged between the negative pressure system and the ink box and plays a role in buffer adjustment.

As an embodiment, the inkjet printing stations 80 include a color ink printing station Y, a color ink printing station M, a color ink printing station C, and a color ink printing station K, that is, the colors of the inks stored in the ink cartridges in different inkjet printing stations 80 are different, the picture is in RGB format on the electronic screen, and in the printing process, the color is composed of K, C, M, Y, which correspond to black, blue, red, and yellow, and each nozzle 83 prints one color in order to print different colors, and the desired printed product can be obtained after passing through the color ink printing station Y, the color ink printing station M, the color ink printing station C, and the color ink printing station K. Certainly, color ink printing station Y, color ink printing station M, color ink printing station C, color ink printing station K also can make up according to the demand of difference, can expand, and are nimble changeable.

As another example, the inkjet printing stations 80 include a white ink printing station W, a color ink printing station Y, a color ink printing station M, a color ink printing station C, a color ink printing station K, and a gloss oil printing station V. In actual production, because the color reduction degree is not high due to the color interference of the product, a white ink printing station W is generally added in front of the color ink printing station to cover the color of the product and ensure the color reduction degree. In order to obtain a bright and ink-protecting printed product, a gloss oil printing station V is usually added to the final color ink printing station. Of course, other printing stations can be added according to the requirements in the actual production.

In addition, the utility model discloses can increase pretreatment process according to actual demand, like spraying coating, flame treatment, plasma treatment, corona treatment or other pretreatment processes for the adhesive force of product and the outward appearance effect of product further obtain promoting, can the bigger degree satisfy the market demand.

In the present embodiment, the ink color in the ink cartridge may be any one or more of K, C, M, Y, Lc, Lm, W, and V.

Referring to fig. 6-8 and 13, the ink cartridges include a primary ink cartridge and a secondary ink cartridge 842, the secondary ink cartridge 842 includes a main ink cartridge and a secondary ink cartridge adjacently disposed, the main ink cartridge and the secondary ink cartridge are respectively communicated with the nozzle 83, and the negative pressure system is connected with the main ink cartridge;

the ink jet control device comprises an ink supply pump 851, a first filter 852 and a float switch arranged on the main ink box, wherein the first filter 852 is arranged between the ink supply pump 851 and the main ink box, and two ends of the ink supply pump 851 are respectively communicated with the primary ink box and the main ink box and are used for pumping ink in the primary ink box into the main ink box;

the internal circulation system comprises a second filter 861, a diaphragm ink pump 862, a control panel and a pressure sensor, wherein the second filter 861 is arranged between the main ink box and the diaphragm ink pump 862 to avoid the conditions of blockage of the spray head 83 and the like, the other end of the diaphragm ink pump 862 is communicated with the auxiliary ink box, the control panel is used for controlling the working state of the diaphragm ink pump 862, and the pressure sensor is used for detecting the pressure of the auxiliary ink box.

Preferably, the inkjet module 81 further includes a positive pressure air pump 88, a solenoid valve 89, and a manual valve 801, the positive pressure air pump 88 communicating with the main cartridge, the solenoid valve 89 being disposed between the main cartridge and the head 83, and the manual valve 801 being disposed between the sub cartridge and the head 83.

The operation of the inkjet module 81 can be divided into: 1. ink supply: the liquid level of the primary ink box is reduced, the float switch 853 is communicated, the ink supply pump 851 works, and ink flows into the main ink box from the primary ink box; 2. the internal circulation of the spray head 83 is as follows: when the ink supply pump 851 works, negative pressure is generated in a pipeline, ink flows into the spray head 83 from the main ink box, is pumped back into the main ink box by the diaphragm ink pump 862 through the auxiliary ink box and the second filter 861, and a negative pressure system above the main ink box adjusts and balances the negative pressure on the surface of the spray head 83; 3. ink pressing and cleaning: and the corresponding electromagnetic valve 89 is switched, the positive pressure air pump 88 works to apply positive pressure to the main ink box, and the ink is sprayed out from the spray head 83 and is used for printing a product 200 to be printed.

The inner circulation system can directly take away bubbles and impurities in the cavity of the spray head 83, the stability of continuous printing is guaranteed, and the condition that the spray head 83 is obliquely sprayed to block the hole can be greatly reduced, so that the service life of the spray head 83 is prolonged, and meanwhile, the precipitation of large-particle pigment ink is prevented.

Furthermore, the inkjet assembly 81 further comprises a temperature control plate, wherein the temperature control plate is connected with the main ink box and the auxiliary ink box and used for monitoring the temperature of the ink in the main ink box and the auxiliary ink box in real time, keeping the temperature of the ink in a normal working range (such as at 60 degrees), ensuring the image printing effect and effectively solving the problem that the temperature of the ink in the main ink box and the auxiliary ink box is reduced and the printing requirement cannot be met.

Referring to fig. 10 and 11, each of the UV curing devices 82 includes a UV lamp 821, a fixing frame 822 and an adjusting frame 823, the fixing frame 822 is fixed on the frame 10, the adjusting frame 823 includes a bracket 8231 and a cover plate 8232, the UV lamp 821 is installed in the bracket 8231 and is partially covered by the cover plate 8232, the UV lamp 821 is placed below the product 200 to be printed, and a light emitting surface of the UV lamp faces the product 200 to be printed, and ink printed on the product 200 to be printed can be cured immediately under the irradiation of the UV lamp 821 without performing a drying process, which is convenient and fast.

Support 8231's one end with mount 822's one end is passed through first pivot and is connected, support 8231's the other end with mount 822's other end swing joint, and can be relative first pivot is adjusted from top to bottom, support 8231's one end is provided with downwardly extending's extension board 8234, be provided with arc wall 8235 on the extension board 8234, mount 822 is provided with the locating plate 8221 that upwards extends, locating plate 8221 with extension board 8234 passes through the mounting and connects, the mounting passes arc wall 8235 with locating plate 8221 connects. Unscrew the mounting, make support 8231 round adjust from top to bottom first pivot, screw up after transferring specific angle the mounting to accomplish the regulation of UV lamp 821 light emitting surface angle is favorable to adjusting according to the actual production condition, guarantees UV lamp 821 can shine the ink on waiting to print product 200, realizes beating promptly and dry promptly.

Preferably, the length of the cover plate 8232 is less than that of the bracket 8231, and the cover plate can be slidably mounted relative to the bracket 8231 to adjust the exposed surface of the UV lamp 821, so that the exposed surface of the UV lamp 821 can be adjusted according to the length of the product 200 to be printed, and the ink on the product 200 to be printed can be irradiated and cured by the UV lamp 821.

Referring to fig. 7 to 8, the inkjet assembly 81 further includes a back plate 802, a Z-axis linear moving module, and a rotatable bracket 803, the nozzle 83 is mounted on the rotatable bracket 803, the Z-axis linear moving module includes a first stepping motor 804, a first screw 805, a slide rail 806, and a vertical plate 807, the back plate 802 is mounted on the central control platform 40 and connected to a first positioning member 8021, the first positioning member 8021 is provided with a first screw 8022, the slide rail 806 is mounted on the back plate 802, the vertical plate 807 is slidably disposed on the slide rail 806, the first stepping motor 804 is fixedly connected to the vertical plate 807, and the first screw 805 is connected to an output shaft of the first stepping motor 804 and passes through the first screw 8022. When the jig 71 rotates to the lower side of the rotatable bracket 803 along with the turntable 20, the first stepping motor 804 drives the first lead screw 805 to move downward relative to the first positioning member 8021, the first stepping motor 804, the vertical plate 807 and the rotatable bracket 803 move downward, and the spray head 83 aligns with the product 200 to be printed for ink jet printing, so that the product 200 to be printed can be prevented from colliding with the spray head 83.

Preferably, a displacement sensor is further provided for detecting the height of the product 200 to be printed, preventing the product 200 to be printed from colliding, and ensuring the safety of the spray head 83.

A U-shaped fixing plate 8071 and a positioning column 8072 are arranged on the vertical plate 807, the rotatable support 803 includes a frame 8031 and an adjusting screw 8032, the frame 8031 is connected to the U-shaped fixing plate 8071 through a second rotating shaft 8033, and can be adjusted in angle to match the surface of the product 200 to be printed, and the adjusting screw 8032 passes through the positioning column 8072 to be connected to one side of the frame 8031, so as to increase the fixing stability of the frame 8031.

Further, the vehicle frame 8031 includes a left side plate 8034, a right side plate 8035 and a transverse plate 8036, the transverse plate 8036 is provided with a through groove 8037 and guide rails 8038 arranged on two sides of the through groove 8037;

the inkjet assembly 81 further comprises an X-axis linear moving module, the X-axis linear moving module comprises a second stepping motor 808, a second screw rod 809 and a sliding block 810, the sliding block 810 is slidably arranged on the guide rail 8038, the sliding block 810 is provided with a positioning groove 811 corresponding to the through groove 8037, the nozzle 83 penetrates through the positioning groove 811 and penetrates through the through groove 8037 to align to-be-printed products 200, the second stepping motor 808 is fixedly connected with the transverse plate 8036, the sliding block 810 is connected with a second positioning part 812, the second positioning part 812 is provided with a second screw hole 813, and the second screw rod 809 is connected with an output shaft of the second stepping motor 808 and penetrates through the second screw hole 813.

When the second stepping motor 808 rotates, the second positioning part 812 is driven to run along the second screw rod 809 so as to drive the sliding block 810 to slide along the guide rail 8038, and the spray head 83 performs ink jet printing along the surface of the product 200 to be printed, so that a product with a size exceeding that of the spray head 83 can be printed, and the ink jet printing device is not limited by the size and has a wider application range.

Referring to fig. 4 and 5, the clamping and rotating fixture 70 further includes a first fixing seat 74, a coupler 75 and a second fixing seat 76, the rotating shaft 72 passes through the first fixing seat 74, a bearing 77 is sleeved in the first fixing seat 74, the rotating shaft 72 is connected with an output shaft of the second servo motor 73 through the coupler 75, the second servo motor 73 is fixed on the second fixing seat 76, and the second servo motor 73 drives the rotating shaft 72 and the fixture 71 to rotate, so that each surface of the product 200 to be printed can be subjected to inkjet printing, and therefore 360-degree and omnibearing printing without dead angle is achieved.

Referring to fig. 12, the ink receiving device 90 further includes a plurality of ink receiving devices 90, each ink receiving device 90 includes an ink receiving tray 91, an ink receiving tray fixing frame 92, and an ink receiving tray adjusting frame 93, the ink receiving tray fixing frame 92 is fixed on the rack 10, the ink receiving tray adjusting frame 93 is connected to the ink receiving tray fixing frame 92, and the ink receiving tray 91 is mounted on the ink receiving tray adjusting frame 93, so that an angle of the ink receiving tray 91 can be adjusted to better receive dropped ink.

Referring to fig. 9, the printing apparatus further includes a plurality of linear sliding modules 51, the feeding manipulator 50 and the discharging manipulator 60 are respectively connected to the linear sliding modules 51 in a sliding manner, and are configured to transfer the product 200 to be printed to the vicinity of the jig 71, suction cups 52 are respectively disposed in the feeding manipulator 50 and the discharging manipulator 60, the feeding manipulator 50 and the discharging manipulator 60 respectively grab the product 200 to be printed, and the suction cups 52 increase grabbing stability.

In this embodiment, the automatic feeding and discharging device further comprises a plurality of conveying structures, which are respectively used for continuously conveying the products 200 to be printed to the feeding manipulator 50 and collecting the printed products to the designated positions, so that automatic feeding and discharging are realized, the efficiency is improved, and manpower is saved.

Further, the jig 71 is provided with a vacuum chuck, so that the fixing stability of the product 200 to be printed is improved, the whole-process high-precision rotation is realized, and the printing precision is ensured.

In this embodiment, the multi-station inkjet automatic printing device further comprises a display screen, a control key and an indicator light, wherein the display screen is used for visualizing data, the control key is used for controlling the whole device, and the indicator light is used for displaying the working state of the multi-station inkjet automatic printing device 100.

In the traditional single-station longitudinal arrangement, ink jet delay influences the jet printing efficiency, and the feeding and discharging process influences the overall production efficiency, so that the method is only suitable for small-batch production and short-period product customization;

in the traditional single-station longitudinal arrangement, the type selection of the spray head 83 has limitation, and the color combination expansion is insufficient, so that the spray head is only suitable for products with regular shapes, small-batch production and short-period product customization;

for traditional simplex position longitudinal arrangement, the utility model discloses an independent multistation has following advantage:

1. the speed is high, the precision is high, and the service life of equipment is long;

2. the color combination is changeable and flexible;

3. the station expansion is flexible;

4. the maintenance is easy;

5. the production efficiency is maximized;

6. supporting a feeding system and a discharging system;

7. the method is suitable for mass production and customization of small or medium products;

8. the method is suitable for pretreatment spray printing of surfaces of various substrates and unique materials.

The above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.

Claims

1. A multi-station ink-jet automatic printing device is characterized by comprising a rack, a turntable, a first servo motor, a central control platform, a feeding manipulator, a discharging manipulator, a plurality of clamping rotary clamps and a plurality of ink-jet printing stations, wherein the turntable is arranged on the rack;

2. The multi-station inkjet automatic printing device according to claim 1, wherein the ink cartridge comprises a primary ink cartridge and a secondary ink cartridge, the secondary ink cartridge comprises a main ink cartridge and a secondary ink cartridge which are adjacently arranged, the main ink cartridge and the secondary ink cartridge are respectively communicated with the spray head, and the negative pressure system is connected with the main ink cartridge;

3. The multi-station inkjet automatic printing apparatus according to claim 2, wherein the inkjet assembly further comprises a positive pressure air pump, a solenoid valve and a manual valve, the positive pressure air pump is communicated with the main cartridge, the solenoid valve is disposed between the main cartridge and the nozzle, and the manual valve is disposed between the sub cartridge and the nozzle.

4. The automatic multi-station inkjet printing device according to claim 1, wherein each UV curing device comprises a UV lamp, a fixing frame and an adjusting frame, the fixing frame is fixed on the frame, the adjusting frame comprises a support and a cover plate, the UV lamp is mounted in the support and is covered by the cover plate, one end of the support is connected with one end of the fixing frame through a first rotating shaft, the other end of the support is movably connected with the other end of the fixing frame and can be adjusted up and down relative to the first rotating shaft, one end of the support is provided with a support plate extending downwards, the support plate is provided with an arc-shaped groove, the fixing frame is provided with a positioning plate extending upwards, the positioning plate is connected with the support plate through a fixing member, and the fixing member penetrates through the arc-shaped groove and is connected with the positioning plate.

5. The multi-station inkjet automatic printing device according to claim 1, wherein the inkjet assembly further comprises a back plate, a Z-axis linear movement module and a rotatable bracket, the Z-axis linear movement module comprises a first stepping motor, a first lead screw, a slide rail and a vertical plate, the back plate is mounted on the central control platform and connected with a first positioning piece, the first positioning piece is provided with a first screw hole, the slide rail is mounted on the back plate, the vertical plate is slidably arranged on the slide rail, the first stepping motor is fixedly connected with the vertical plate, and the first lead screw is connected with an output shaft of the first stepping motor and penetrates through the first screw hole;

6. The multi-station inkjet automatic printing device according to claim 5, wherein the frame comprises a left side plate, a right side plate and a transverse plate, wherein the transverse plate is provided with a through groove and guide rails arranged on two sides of the through groove;

7. The automatic multi-station inkjet printing device according to claim 1, wherein the clamping rotary fixture further comprises a first fixing seat, a coupler and a second fixing seat, the rotating shaft penetrates through the first fixing seat, a bearing is sleeved in the first fixing seat, the rotating shaft is connected with an output shaft of the second servo motor through the coupler, and the second servo motor is fixed on the second fixing seat.

8. The automatic multi-station inkjet printing apparatus according to claim 1, further comprising a plurality of ink receiving devices, wherein each ink receiving device comprises an ink receiving tray, an ink receiving tray fixing frame and an ink receiving tray adjusting frame, the ink receiving tray fixing frame is fixed on the frame, the ink receiving tray adjusting frame is connected with the ink receiving tray fixing frame, and the ink receiving tray is mounted on the ink receiving tray adjusting frame.

9. The multi-station inkjet automatic printing device according to claim 1, further comprising a plurality of linear sliding modules, wherein the feeding manipulator and the discharging manipulator are respectively connected with the linear sliding modules in a sliding manner, and suckers are respectively arranged in the feeding manipulator and the discharging manipulator.

10. The automatic multi-station inkjet printing device according to claim 1, wherein the inkjet printing stations comprise a color ink printing station Y, a color ink printing station M, a color ink printing station C and a color ink printing station K, or the inkjet printing stations comprise a white ink printing station W, a color ink printing station Y, a color ink printing station M, a color ink printing station C, a color ink printing station K and a gloss oil printing station V.