Visual inspection type digital ink-jet printer

Abstract

The utility model relates to a visual inspection type digital ink-jet printer. The visual inspection type digital ink-jet printer comprises an equipment body mechanism, a cantilever mechanism, an ink-jet printing head mechanism and a printing ink supply mechanism, the cantilever mechanism is arranged on an X-axis guide rail of the equipment body mechanism; the ink-jet printing head mechanism is arranged on a Y-axis guide rail of the cantilever mechanism; a nozzle in the ink-jet printing head mechanism is mounted on a Z-axis guide rail; the spray head can move in the X-axis direction, the Y-axis direction and the Z-axis direction. The ink-jet printing head mechanism is further provided with a visual detection device. A stirring mechanism, a second-stage ink supply mechanism and a third-stage ink supply mechanism of the ink supply mechanism are respectively arranged in the equipment body mechanism, the cantilever mechanism and the ink-jet printing head mechanism. According to the utility model, the cantilever type mechanism, the high-precision industrial spray head and the visual inspection device are adopted, the spray head is driven by the motor, the lead screw and the linear motor to move on the X-axis, the Y-axis and the Z-axis, the occupied area is small, the printing speed is high, the precision is high, graph customization is convenient, and the detection efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of digital inkjet printing equipment, in particular to a visual detection type digital inkjet printer. Background Art

[0002] The traditional screen printing process has low screen accuracy, imprecise patterns, and it is time-consuming and laborious to change the printing pattern and adjust the screen position. However, with the growing demand for small-format, high-precision, and multi-pattern printing, traditional screen printing can no longer meet printing needs.

[0003] In screen printing production, it is difficult to replace the screen at high speed and high precision. It is difficult to meet the printing needs of changing patterns immediately. Replacing the screen takes a long time, which greatly reduces production efficiency. Screen printing production is subject to the screen manufacturing process. The number of screens is between 100 and 300, which is equivalent to the nozzle accuracy of 100 to 300 dpi. It is only suitable for low-precision printing needs and difficult to meet the needs of high-precision printing. At the same time, the screen printing machine also has the problems of complex structure and relatively low reliability. Simplifying the structure and improving reliability is a difficulty. Therefore, in view of the above reasons, combined with the actual production needs, it is necessary to design a digital inkjet printing device that can meet printing needs. Summary of the invention

[0004] The utility model provides a visual inspection type digital inkjet printer to solve the technical problems existing in the known technology. Compared with the existing printing equipment, it has the advantages of small footprint, fast printing speed, high precision, convenient graphic customization and high inspection efficiency.

[0005] The utility model includes the following technical solutions: a visual inspection type digital inkjet printer, comprising an equipment body mechanism, a cantilever mechanism, an inkjet print head mechanism and an ink supply mechanism; the cantilever mechanism is arranged on an X-axis guide rail of the equipment body mechanism; the inkjet print head mechanism is arranged on a Y-axis guide rail of the cantilever mechanism, and a nozzle in the inkjet print head mechanism is installed on a Z-axis guide; the nozzle can move in three directions of the X-axis, the Y-axis and the Z-axis; a visual inspection device is also installed on the inkjet print head mechanism; a stirring mechanism of an ink supply mechanism, a secondary ink supply mechanism and a tertiary ink supply mechanism are respectively arranged inside the equipment body mechanism, the cantilever mechanism and the inkjet print head mechanism.

[0006] Furthermore, the equipment body structure also includes a body frame and a driving servo motor; the X-axis guide rails are installed on both sides of the top surface of the body frame, and the driving servo motor is connected to the ball screw through a synchronous pulley set and installed inside the body frame.

[0007] Furthermore, a connecting mechanism is installed on the nut of the ball screw, and a servo motor is driven as a power source. During operation, the connecting mechanism is driven to drive the cantilever mechanism to move along the X-axis direction.

[0008] Furthermore, the base of the cantilever mechanism is connected to the X-axis guide rail and the connecting mechanism. When the connecting mechanism moves along the X-axis direction, the base is driven to move with it.

[0009] Furthermore, the cantilever mechanism further includes an ink receiving tray and a large arm; the ink receiving tray is mounted on one side of the base, the large arm is firmly mounted on the base, a Y-axis guide rail is mounted above the large arm, and a linear motor is mounted on one side of the large arm. The Y-axis guide rail extends toward one side of the base.

[0010] Furthermore, the inkjet print head mechanism also includes a mounting frame mechanism and a Z-axis servo; the visual inspection device is installed on one side of the frame mechanism, and the mounting frame mechanism is installed on the Y-axis guide rail and connected to the linear motor; the linear motor serves as a power source to drive the inkjet print head mechanism to move along the Y-axis direction.

[0011] Furthermore, the Z-axis servo is installed on one side of the mounting frame mechanism, the Z-axis servo is connected to the lead screw, and is connected to the Z-axis guide through a connecting plate; the Z-axis servo drives the lead screw to rotate and drives the nozzle to move up and down along the Z-axis guide.

[0012] Furthermore, the stirring mechanism includes a tank body, a stirring motor, stirring blades, and an ink supply and return pump; the stirring motor is installed on the tank body and connected to the stirring blades, and the stirring motor serves as a power source to stir the ink inside the tank body by driving the stirring blades; the ink supply and return pump is placed on one side of the tank body and serves as a circulation system to supply ink to the secondary ink supply mechanism and recover residual ink from the secondary ink supply mechanism.

[0013] Furthermore, the secondary ink supply mechanism is installed on one side of the base of the cantilever mechanism, and the secondary ink supply mechanism includes a secondary ink cartridge, a secondary ink supply pump, a secondary ink return pump and a filter; the secondary ink supply pump and the secondary ink return pump are installed on one side of the secondary ink cartridge, and serve as a circulation system to supply ink to the tertiary ink supply mechanism and recover residual ink from the tertiary ink supply mechanism. The filter is installed on the ink supply pipeline from the secondary ink supply mechanism to the tertiary ink supply mechanism to filter the ink.

[0014] Furthermore, the three-stage ink supply mechanism is installed on the upper side of the mounting frame mechanism of the inkjet print head mechanism, and the three-stage ink supply mechanism includes an ink supply cartridge and an ink return cartridge; the ink supply cartridge is respectively connected to the secondary ink supply pump and the nozzle through an ink pipeline, and the ink return cartridge is respectively connected to the secondary ink return pump and the nozzle through an ink pipeline.

[0015] The utility model has the following advantages and positive effects:

[0016] 1. The utility model adopts a cantilever mechanism, which is placed on the non-operating side of the transmission equipment, occupies a small area and does not hinder the operation of personnel on the operating side; it adopts a high-precision industrial nozzle with a resolution of 600dpi, which is higher than the resolution that can be achieved by screen printing technology; it is installed with a visual inspection device, which can be inspected after inkjet printing is completed, reducing the investment in subsequent inspection-related equipment.

[0017] 2. The utility model drives the lead screw module and the linear motor through a servo motor to move the nozzle in the three directions of X-axis, Y-axis and Z-axis at high speed and precision. When the printing carrier is transmitted to the working position through the transmission line, the inkjet print head moves to the designated inkjet printing position to complete the inkjet printing action. After the inkjet printing is completed, the detection visual device arranged on the inkjet print head takes a photo to check the completed pattern.

[0018] 3. The utility model is arranged on the transmission section of the production line through the reasonable configuration of mechanical mechanism, ink supply mechanism and visual inspection device, and cooperates with the conveyor to operate efficiently, so that the whole equipment perfectly meets the quality and productivity requirements of the digital printing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is the overall structural diagram of one side of the ink supply mechanism of the utility model;

[0021] Figure 3 It is a schematic diagram of the frame structure of the equipment body of the utility model;

[0022] Figure 4 is a schematic diagram of the cantilever mechanism;

[0023] Figure 5 is a schematic diagram of the structure of an inkjet print head;

[0024] Figure 6 This is a schematic diagram of the ink supply and return pump;

[0025] Figure 7 It is a schematic diagram of a mixing tank;

[0026] Figure 8 It is a schematic diagram of a secondary ink cartridge of a secondary ink supply mechanism;

[0027] Fig. 9 It is a schematic diagram of a secondary ink supply pump, a secondary ink return pump and a filter of a secondary ink supply mechanism;

[0028] Fig.10 It is a schematic diagram of a three-stage ink supply mechanism;

[0029] In the figure, 1, machine body; 101, machine body frame; 102, X-axis guide rail; 103, driving servo motor; 104, synchronous pulley set; 105, ball screw; 106, connecting mechanism;

[0030] 2. Cantilever mechanism; 201. Base; 202. Ink tray; 203. Upper arm; 204. Y-axis guide rail; 205. Linear motor;

[0031] 3. Inkjet print head mechanism; 301. Mounting frame mechanism; 302. Z-axis servo; 303. Lead screw; 304. Z-axis guide; 305. Print head; 306. Visual inspection device;

[0032] 4. Ink supply mechanism; 41. Stirring mechanism; 411. Tank body; 412. Stirring motor; 413. Stirring fan blades; 414. Ink supply and ink return pump; 42. Secondary ink supply mechanism; 421. Secondary ink cartridge; 422. Secondary ink supply pump; 423. Filter; 424. Secondary ink return pump; 43. Tertiary ink supply mechanism; 431. Ink supply cartridge; 432. Ink return cartridge. DETAILED DESCRIPTION

[0033] In order to further disclose the content, features and effects of the invention, the following examples are specifically cited and described in detail in conjunction with the accompanying drawings. In the description of the following embodiments, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0034] In the description of the following embodiments, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0035] Example: See attached Figure 1-10A visual inspection type digital inkjet printer comprises a device body mechanism 1, a cantilever mechanism 2, an inkjet print head mechanism 3 and an ink supply mechanism 4; the cantilever mechanism 2 is arranged on the X-axis guide rail 102 of the device body mechanism 1; the inkjet print head mechanism 3 is arranged on the Y-axis guide rail 204 of the cantilever mechanism 2, and a nozzle 305 in the inkjet print head mechanism 3 is installed on the Z-axis guide 304; the nozzle 305 can move in three directions of the X-axis, the Y-axis and the Z-axis; a visual inspection device 306 is also installed on the inkjet print head mechanism 3; the device body mechanism 1, the cantilever mechanism 2 and the inkjet print head mechanism 3 are respectively provided with a stirring mechanism 41, a secondary ink supply mechanism 42 and a tertiary ink supply mechanism 43 of the ink supply mechanism 4.

[0036] As attached Figure 3 As shown, the device body mechanism 1 also includes a body frame 101 and a driving servo motor 103; the X-axis guide rails 102 are installed on both sides of the top surface of the body frame 101, and the driving servo motor 103 is connected to the ball screw 105 through a synchronous pulley set 104 and installed inside the body frame 101. A connecting mechanism 106 is installed on the nut of the ball screw 105, and the driving servo motor 103 is used as a power source. When running, the driving connecting mechanism 106 drives the cantilever mechanism 2 to move along the X-axis direction.

[0037] As attached Figure 4 As shown, the base 201 of the cantilever mechanism 2 is connected to the X-axis guide rail 102 and the connecting mechanism 106. When the connecting mechanism 106 moves along the X-axis direction, the base 201 is driven to move with it. The cantilever mechanism 2 also includes an ink receiving tray 202 and a large arm 203; the ink receiving tray 202 is installed on one side of the base 201, the large arm 203 is firmly installed on the base 201, a Y-axis guide rail 204 is installed above the large arm 203, and a linear motor 205 is installed on one side of the large arm 203. The Y-axis guide rail 204 extends to one side of the base 201.

[0038] As attached Figure 5 As shown, the inkjet print head mechanism 3 also includes a mounting frame mechanism 301 and a Z-axis servo 302; the visual inspection device 306 is located on one side of the mounting frame mechanism 301, and the mounting frame mechanism 301 is mounted on the Y-axis guide rail 204 and connected to the linear motor 205; the linear motor 205 serves as a power source to drive the inkjet print head mechanism 3 to move along the Y-axis direction. The Z-axis servo 302 is mounted on one side of the mounting frame mechanism 301, and the Z-axis servo 302 is connected to the lead screw 303, and is connected to the Z-axis guide 304 through a connecting plate; the Z-axis servo 302 drives the lead screw 303 to rotate and drives the nozzle 305 to move up and down along the Z-axis guide 304.

[0039] As attached Figure 6-Figure 7As shown, the stirring mechanism 41 includes a tank body 411, a stirring motor 412, stirring blades 413, and an ink supply and return pump 414; the stirring motor 412 is installed on the tank body 411 and connected to the stirring blades 413, and the stirring motor 412 serves as a power source to stir the ink inside the tank body 411 by driving the stirring blades 413; the ink supply and return pump 414 is placed on one side of the tank body 411, and serves as a circulation system to supply ink to the secondary ink supply mechanism 42 and recover the residual ink of the secondary ink supply mechanism 42.

[0040] As attached Figure 8-Figure 9 As shown, the secondary ink supply mechanism 42 is installed on one side of the base 201 of the cantilever mechanism 2, and the secondary ink supply mechanism 42 includes a secondary ink cartridge 421, a secondary ink supply pump 422, a secondary ink return pump 424 and a filter 423; the secondary ink supply pump 422 and the secondary ink return pump 424 are installed on one side of the secondary ink cartridge 421, and serve as a circulation system to supply ink to the tertiary ink supply mechanism 43 and recover the residual ink of the tertiary ink supply mechanism 43, and the filter 423 is installed on the ink supply pipeline from the secondary ink supply mechanism 42 to the tertiary ink supply mechanism 43 to filter the ink.

[0041] As attached Fig.10 As shown, the three-stage ink supply mechanism 43 is installed on the upper side of the mounting frame mechanism 301 of the inkjet print head mechanism 3, and the three-stage ink supply mechanism 43 includes an ink supply cartridge 431 and an ink return cartridge 432; the ink supply cartridge 431 is respectively connected to the secondary ink supply pump 422 and the nozzle 305 through ink pipelines, and the ink return cartridge 432 is respectively connected to the secondary ink return pump 424 and the nozzle 305 through ink pipelines.

[0042] Workflow: Taking the automobile glass printing production line as an example, the visual inspection type digital inkjet printing equipment can be installed on the ordinary conveyor after the black edge printer and before the dryer of the production line. When the equipment starts to run, the glass is transported from the upstream to the working position and stops. At this time, the inkjet print head mechanism 3 is located at the starting point of the base 201, and the nozzle 305 is immersed in the right side of the ink receiving tray 202. The ink supply mechanism 4 starts to work, and the appropriate ink is stirred to reach the secondary ink supply mechanism 42 and the tertiary ink supply mechanism 43 through the ink pipeline. When the pressure detection device detects that the pressure meets the requirements, the inkjet print head mechanism 3 moves along the Z axis and the Y axis to the left side of the ink receiving tray 202 and sprays the ink. The operator needs to visually check that the ink is sprayed normally, and then adjust the X axis, Y axis and Z axis through the touch screen to move the nozzle 305 to the predetermined graphic printing position. At this time, the Z axis is in a high position because the transmission height has been pre-set. When printing is required, the nozzle 305 drops to a printing height of about 0.5mm from the upper surface of the glass through the Z axis and completes the printing. The inkjet print head mechanism 3 rises to the visual inspection height on the Z axis, and is driven along the Y axis to the fixed distance between the visual inspection device 306 and the nozzle 305, so that the visual inspection device 306 can detect whether the printed pattern meets the requirements. When continuous production is in progress, the inkjet print head mechanism 3 repeats the action of lifting the Z axis to the printing height and the inspection height, and moving the Y axis to the printing position and the inspection position. When the equipment needs to be shut down or the product is changed, the downtime is long at this time. The inkjet print head mechanism 3 needs to move along the Y axis to the starting point at the base 201, and the nozzle 305 is directly above the right side of the ink receiving tray 202, and descends along the Z axis to a fixed height, so that the nozzle 305 is immersed in the solution inside the ink receiving tray 202 to prevent the nozzle hole from being blocked. When the production line is reproduced, a new round of printing is started according to the above process. The utility model is mainly used in inkjet printing with flat plates, such as glass, plastic plates, metal plates, etc. as carriers, on which patterns, pictures, text, trademarks, QR codes and other graphics need to be sprayed. The pattern of inkjet printing can be edited or imported through software, and it is convenient to change.

[0043] Although the preferred embodiments of the utility model are described above, the utility model is not limited to the above specific embodiments, which are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can make many forms without departing from the purpose of the utility model and the scope of protection of the claims. All of these belong to the protection scope of the utility model.

Claims

1. A visual inspection type digital inkjet printer, characterized in that: The invention comprises an equipment body mechanism (1), a cantilever mechanism (2), an inkjet print head mechanism (3) and an ink supply mechanism (4); the cantilever mechanism (2) is arranged on an X-axis guide rail (102) of the equipment body mechanism (1); the inkjet print head mechanism (3) is arranged on a Y-axis guide rail (204) of the cantilever mechanism (2); a nozzle (305) in the inkjet print head mechanism (3) is installed on a Z-axis guide (304); the nozzle (305) can move in three directions of the X-axis, the Y-axis and the Z-axis; a visual detection device (306) is also installed on the inkjet print head mechanism (3); a stirring mechanism (41), a secondary ink supply mechanism (42) and a tertiary ink supply mechanism (43) of the ink supply mechanism (4) are respectively arranged inside the equipment body mechanism (1), the cantilever mechanism (2) and the inkjet print head mechanism (3).

2. A visual inspection type digital inkjet printer according to claim 1, characterized in that: The equipment body structure (1) also includes a body frame (101) and a driving servo motor (103); the X-axis guide rail (102) is installed on both sides of the top surface of the body frame (101); the driving servo motor (103) is connected to a ball screw (105) via a synchronous pulley set (104) and is installed inside the body frame (101).

3. A visual inspection type digital inkjet printer according to claim 2, characterized in that: A connecting mechanism (106) is installed on the nut of the ball screw (105), and a servo motor (103) is driven as a power source. During operation, the connecting mechanism (106) is driven to drive the cantilever mechanism (2) to move along the X-axis direction.

4. A visual inspection type digital inkjet printer according to claim 3, characterized in that: The base (201) of the cantilever mechanism (2) is connected to the X-axis guide rail (102) and the connecting mechanism (106); when the connecting mechanism (106) moves along the X-axis direction, the base (201) is driven to move along with it.

5. A visual inspection type digital inkjet printer according to claim 4, characterized in that: The cantilever mechanism (2) further comprises an ink receiving tray (202) and a large arm (203); the ink receiving tray (202) and the large arm (203) are mounted on the base (201), a Y-axis guide rail (204) is mounted above the large arm (203), and a linear motor (205) is mounted on one side of the large arm (203).

6. A visual inspection type digital inkjet printer according to claim 5, characterized in that: The inkjet print head mechanism (3) further comprises a mounting frame mechanism (301) and a Z-axis servo (302); the visual inspection device (306) is located on one side of the mounting frame mechanism (301); the mounting frame mechanism (301) is mounted on a Y-axis guide rail (204) and connected to the linear motor (205); the linear motor (205) serves as a power source to drive the inkjet print head mechanism (3) to move along the Y-axis direction.

7. A visual inspection type digital inkjet printer according to claim 6, characterized in that: The Z-axis servo (302) is installed on one side of the mounting frame mechanism (301), and the Z-axis servo (302) is connected to the lead screw (303) and is connected to the Z-axis guide (304) via a connecting plate; the Z-axis servo (302) drives the lead screw (303) to rotate and drives the nozzle (305) to move up and down along the Z-axis guide (304).

8. The visual inspection type digital inkjet printer according to claim 1, characterized in that: The stirring mechanism (41) comprises a tank body (411), a stirring motor (412), a stirring blade (413), and an ink supply and return pump (414); the stirring motor (412) is installed on the tank body (411) and connected to the stirring blade (413); the stirring motor (412) serves as a power source to stir the ink inside the tank body (411) by driving the stirring blade (413); the ink supply and return pump (414) is placed on one side of the tank body (411).

9. A visual inspection type digital inkjet printer according to claim 1, characterized in that: The secondary ink supply mechanism (42) is installed on one side of the base (201) of the cantilever mechanism (2), and the secondary ink supply mechanism (42) comprises a secondary ink cartridge (421), a secondary ink supply pump (422), a secondary ink return pump (424) and a filter (423); the secondary ink supply pump (422) and the secondary ink return pump (424) are installed on one side of the secondary ink cartridge (421); the filter (423) is installed on the ink supply pipeline from the secondary ink supply mechanism (42) to the tertiary ink supply mechanism (43).

10. A visual inspection type digital inkjet printer according to claim 9, characterized in that: The three-stage ink supply mechanism (43) is installed on the upper side of the mounting frame mechanism (301) of the inkjet print head mechanism (3), and the three-stage ink supply mechanism (43) comprises an ink supply cartridge (431) and an ink return cartridge (432); the ink supply cartridge (431) is respectively connected to the secondary ink supply pump (422) and the nozzle (305) through an ink pipeline, and the ink return cartridge (432) is respectively connected to the secondary ink return pump (424) and the nozzle (305) through an ink pipeline.

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