A multi-color precision printing equipment for ceramic tableware

Abstract

This utility model discloses a multi-color precision printing device for ceramic tableware, including a base and a device box. A rotating cylinder is rotatably connected to the top surface of the base via an electric slip ring. Beneficial effects: This utility model is equipped with a first stepper motor and a second stepper motor. The ceramic tableware is placed on the top surface of the rotating table. During multi-color printing, the second stepper motor drives the second drive gear to rotate, which in turn drives the second driven gear to rotate, causing the rotating table to rotate at a fixed angle, changing the printing position. Simultaneously, the first stepper motor drives the first drive gear to rotate, which in turn drives the first driven gear to rotate, causing the printing head to rotate at a fixed angle. When the printing head rotates to directly above the ceramic tableware, the electric cylinder extends, pushing the printing head downwards, thus initiating printing. Different color printing heads rotate at fixed angles to directly above the ceramic tableware, and the rotation of the ceramic tableware at fixed angles changes the printing position, thereby achieving precise printing, improving printing accuracy, avoiding color overlap, and increasing the yield rate.

Description

Technical Field

[0001] This utility model relates to the field of ceramic tableware production technology, specifically to a multi-color precision printing equipment for ceramic tableware. Background Technology

[0002] Ceramic tableware refers to all man-made industrial products made from inorganic non-metallic minerals such as clay. It includes various products made from clay or clay-containing mixtures through mixing, shaping, and firing. To enhance their aesthetic appeal, ceramic tableware is generally decorated with printed designs during production.

[0003] Ceramic printing is divided into multi-color printing and single-color printing. Single-color printing can be completed using a single set of printing heads, which is simple in structure. Multi-color printing requires multiple types of printing heads, with each set of printing heads transferring one color. Multi-color printing is achieved by changing the transfer angle. Traditional multi-color printing equipment uses a conveyor for transport, with multiple sets of printing heads moving down sequentially side by side for printing. Although this method has high work continuity and efficiency, the positioning accuracy of the conveyor is poor, which can easily cause overprinting and affect the yield. Further improvements are needed. At the same time, the printing heads need an ink table for inking. During inking, the printing heads cannot perform transfer operations, resulting in a long waiting time. Further improvements are also needed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a multi-color precision printing equipment for ceramic tableware, which has the advantages of improving the accuracy of printing and work efficiency, thereby solving the problems in the background art mentioned above.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned advantages of improved printing accuracy and work efficiency, the specific technical solution adopted by this utility model is as follows: A multi-color precision printing device for ceramic tableware includes a base and a device box. A rotating cylinder is rotatably connected to the top surface of the base via an electric slip ring, and a rotating plate is fixedly installed on the top surface of the rotating cylinder. An electric cylinder is fixedly installed on the top surface of the rotating cylinder, and a printing head is fixedly installed on the bottom surface of the moving rod of the electric cylinder. A first stepper motor is fixedly installed on the top surface of the base, and a first drive gear is fixedly installed at the output end of the first stepper motor. A first driven gear is fixedly sleeved on the outer surface of the rotating cylinder, and the first driven gear meshes with the first drive gear. A rotating column is rotatably connected to the bottom surface of the device box via a rotating connecting seat, and a rotating table is fixedly installed on the top surface of the rotating column. A second stepper motor is fixedly installed inside the device box, and a second drive gear is installed at the output end of the second stepper motor. A second driven gear is fixedly installed on the surface of the rotating column, and the second driven gear meshes with the second drive gear.

[0008] Furthermore, an ink stand is fixedly installed directly below the printing head, and the ink stand and the printing head are a matching product.

[0009] Furthermore, the electric cylinder and the printing head are distributed in multiple sets at equal angles along the vertical central axis of the rotating cylinder.

[0010] Furthermore, the stepping frequencies of the first and second stepper motors are matched.

[0011] Furthermore, the rotating platform, rotating column, second driven gear, and rotating connecting seat are arranged coaxially.

[0012] Furthermore, the top of the rotating column is rotatably connected to the top surface of the equipment box via a bearing.

[0013] Furthermore, a positioning ring is printed at the center of the top surface of the rotating platform, and the diameter of the positioning ring is equal to the diameter of the ceramic tableware placement end.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a multi-color precision printing device for ceramic tableware, which has the following beneficial effects:

[0016] (1) This utility model is equipped with a first stepper motor and a second stepper motor. The ceramic tableware is placed on the top surface of the rotating table. During multi-color printing, the second stepper motor drives the second drive gear to rotate, which in turn drives the second driven gear to rotate, causing the rotating table to rotate at a fixed angle and change the printing position. At the same time, the first stepper motor drives the first drive gear to rotate, which in turn drives the first driven gear to rotate, causing the printing head to rotate at a fixed angle. When the printing head rotates to the top of the ceramic tableware, the electric cylinder extends and pushes the printing head down, so that printing can be performed. The printing heads of different colors rotate at a fixed angle to the top of the ceramic tableware, and the ceramic tableware rotates at a fixed angle to change the printing position, thereby performing precise printing, improving the accuracy of printing, avoiding the problem of color overlap, and improving the yield rate.

[0017] (2) The present invention is equipped with a printing head that can rotate at a fixed angle. When one of the printing heads moves down to print, the other printing heads can move down to contact the ink table under the drive of the electric cylinder, and transfer the ink to the surface of the printing head to complete the ink application operation. Thus, the device can complete the synchronous ink application operation while printing, saving printing time and improving printing efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a multi-color precision printing device for ceramic tableware according to an embodiment of the present utility model;

[0020] Figure 2 This is a front view of a multi-color precision printing device for ceramic tableware according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the rotating table of a multi-color precision printing equipment for ceramic tableware according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the installation of the printing head of a multi-color precision printing device for ceramic tableware according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Base; 2. Rotating cylinder; 3. First stepper motor; 4. First drive gear; 5. First driven gear; 6. Electric slip ring; 7. Ink table; 8. Rotating plate; 9. Electric cylinder; 10. Printing head; 11. Equipment box; 12. Second stepper motor; 13. Second drive gear; 14. Second driven gear; 15. Rotating column; 16. Rotary connecting seat; 17. Rotating table. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a multi-color precision printing device for ceramic tableware is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. Please refer to them. Figure 1 and Figure 4According to an embodiment of this utility model, a multi-color precision printing device for ceramic tableware includes a base 1 and an equipment box 11. The base 1 is made of high-strength cast iron and undergoes aging treatment to eliminate internal stress, ensuring stable operation of the equipment. A rotating cylinder 2 is rotatably connected to the top surface of the base 1 via an M250-12 electric slip ring 6. This electric slip ring has 12 current channels, a rated current of 10A, and a maximum speed of 3000r / min, enabling continuous and stable power supply over 360° to meet the power supply requirements of the electric cylinder 9 during rotation. The rotating cylinder 2 is made of high-quality aluminum alloy and is integrally formed by CNC machining. It has a hollow internal structure with an inner diameter of 80mm, facilitating the routing of power lines, control lines, and other wiring.

[0028] A rotating plate 8 is bolted to the top surface of the rotating cylinder 2. The bolts are made of high-strength stainless steel, and the tightening torque is controlled at 15-20 N•m to ensure a stable connection. Six sets of electric cylinders 9 are evenly distributed and fixedly installed on the top surface of the rotating plate 8. The electric cylinders 9 are high-precision servo electric cylinders, model JIF-100, with a stroke of 150 mm, a positioning accuracy of ±0.1 mm, and a maximum thrust of 3000 N. The bottom surface of its moving rod is fixedly installed with a printing head 10 through a quick-change interface, which is a common printing equipment. A first stepper motor 3, model 57BYGH118, is fixedly installed on the top surface of the base 1. The step angle is 0.09°, the positioning accuracy is ±0.01 mm, and the output end of the first stepper motor 3 is fixedly installed with a first drive gear 4. A first driven gear 5 is fixedly sleeved on the outer surface of the rotating cylinder 2. The first drive gear 4 and the first driven gear 5 both have a module of 2, a pressure angle of 20°, a transmission ratio of 1:3, and the meshing gap between the two is controlled at 0.05-0.1 mm to ensure smooth rotation.

[0029] The equipment box 11 is made of stainless steel and has a compact and reasonable internal structure. A rotating column 15 is rotatably connected to the bottom surface of the equipment box 11 via a high-precision rotating connecting seat 16 (model HRB-6208). This rotating connecting seat uses angular contact ball bearings, which can withstand large radial and axial loads, ensuring the stability of the rotating column 15's rotation. The rotating column 15 is made of 45# steel, and after heat treatment, its surface hardness reaches HRC28-32. A rotating table 17 is bolted to the top surface. A second stepper motor 12, also model 57BYGH118, is fixedly installed inside the equipment box 11. A second drive gear 13 is installed at the output end of the second stepper motor 12, and a second driven gear 14 is fixedly installed on the surface of the rotating column 15. The second drive gear 13 and the second driven gear 14 have a module of 2, a pressure angle of 20°, a transmission ratio of 1:2, and a meshing accuracy of grade 7.

[0030] The ceramic tableware is placed on top of the rotating table 17. During multi-color printing, the second stepper motor 12 drives the second drive gear 13 at a speed of 200 r / min, which in turn drives the second driven gear 14 at a speed of 100 r / min, causing the rotating table 17 to rotate at a fixed angle. Each rotation angle can be precisely adjusted within the range of 0-360° according to the printing requirements, changing the printing position. Simultaneously, the first stepper motor 3 drives the first drive gear 4 at a speed of 300 r / min, which in turn drives the first driven gear 5 at a speed of 100 r / min, causing the printing head 10 to rotate at a fixed angle. When the printing head 10 rotates to directly above the ceramic tableware, the electric cylinder 9 extends at a speed of 0.5 m / s, pushing the printing head 10 downward, thus initiating printing. Different colored printing heads 10 rotate at fixed angles to directly above the ceramic tableware, and the rotating tableware changes the printing position. Through high-precision angle control and positioning, accurate printing is achieved. Testing shows that the printing position error can be controlled within ±0.2 mm, improving the yield rate compared to traditional printing equipment.

[0031] Please refer to Figure 1 and Figure 2 An ink table 7 is fixedly installed directly below the printing head 10. The ink table 7 is made of high-quality stainless steel with a Teflon coating for excellent non-stick properties. The ink table 7 is a complementary product to the printing head 10. It has an independent ink storage chamber and an automatic ink replenishment system. When one printing head 10 moves down for printing, the other printing heads 10, driven by the electric cylinder 9, move down at a speed of 0.3 m / s to contact the ink table 7. Through precise pressure control, the ink is evenly transferred to the surface of the printing head 10, completing the inking operation. Testing shows that a single inking cycle takes only 2-3 seconds, allowing the device to perform simultaneous inking and printing, thus improving production efficiency compared to the traditional method of inking first and then printing.

[0032] Please refer to Figure 1 and Figure 4 There are 6 sets of electric cylinders 9 and printing heads 10 distributed at equal angles along the vertical central axis of the rotating cylinder 2. The angle between adjacent electric cylinders 9 is 60°, which is adapted to the stepping angle of the first stepper motor 3, ensuring that each printing head 10 can accurately correspond to the printing position of the ceramic tableware and achieve precise layout of multi-color printing.

[0033] Please refer to Figure 1 and Figure 2 The first stepper motor 3 and the second stepper motor 12 work together through the control system. Their stepping frequencies are matched and the synchronization error is controlled within ±0.01s, ensuring that the movement of the printing head 10 and the rotating table 17 is highly coordinated and improving the accuracy of positioning and matching.

[0034] Please refer to Figure 1 and Figure 3The rotating table 17, rotating column 15, second driven gear 14 and rotating connecting seat 16 are manufactured with high-precision machining technology, and the coaxiality error is controlled within ±0.05mm, which effectively reduces the eccentricity error during rotation, improves the stability of the rotating table 17, and the vibration amplitude during operation is less than 0.1mm.

[0035] Please refer to Figure 1 and Figure 3 The top of the rotating column 15 is rotatably connected to the top surface of the equipment box 11 by a pair of 30208 type tapered roller bearings. The bearings have a precision grade of P5 and can withstand large axial and radial loads, further improving the stability of the rotation of the rotating column 15 and the rotating table 17, reducing operating noise to below 65dB.

[0036] Please refer to Figure 1 and Figure 3 A positioning ring is printed at the center of the top surface of the rotating table 17 using a screen printing process. The diameter of the positioning ring is designed according to the size of common ceramic tableware, with a tolerance controlled within ±0.1mm. This allows operators to quickly and accurately position and place ceramic tableware, improving feeding efficiency.

[0037] Working principle: The operator accurately places the ceramic tableware on the top surface of the rotating table 17 according to the markings on the positioning ring. After starting the equipment, the control system, according to the preset printing program, drives the second stepper motor 12 to rotate the second drive gear 13, which in turn drives the second driven gear 14, the rotating column 15, and the rotating table 17 to rotate at a fixed angle, precisely adjusting the printing position of the ceramic tableware. At the same time, the first stepper motor 3 drives the first drive gear 4 to rotate, which in turn drives the first driven gear 5, the rotating cylinder 2, the rotating plate 8, and the printing head 10 to rotate at a fixed angle.

[0038] When the printing head 10 rotates to directly above the ceramic tableware, the electric cylinder 9 extends according to the set speed and stroke, pushing the printing head 10 downwards to contact the surface of the ceramic tableware and apply appropriate pressure, completing the printing operation. While one printing head 10 is printing, the remaining printing heads 10, driven by the electric cylinder 9, move downwards to contact the ink table 7 for synchronous ink application. After printing is completed, the electric cylinder 9 retracts, causing the printing head 10 to move upwards and reset. The second stepper motor 12 and the first stepper motor 3 work together again, rotating the rotary table 17 and the printing head 10 to the next printing position, repeating the above operation until all colors are printed.

[0039] Throughout the process, the first stepper motor 3 and the second stepper motor 12 ensure accurate relative positioning of the printing head 10 and the ceramic tableware through precise stepping control; the electric slip ring 6 ensures stable power supply to the electric cylinder 9 during rotation; and the rotating connecting seat 16 and bearings ensure stable operation of the rotating components. Through the coordinated work of multiple components, this equipment achieves high-precision and high-efficiency multi-color printing on ceramic tableware, effectively avoiding color overlap and significantly improving product yield and production efficiency.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ceramic tableware multi-color precision printing equipment, comprising a base (1) and an equipment box (11), characterized in that, The top surface of the base (1) is rotatably connected to a rotating cylinder (2) via an electric slip ring (6), and a rotating plate (8) is fixedly installed on the top surface of the rotating cylinder (2). An electric cylinder (9) is fixedly installed on the top surface of the rotating cylinder (9), and a printing head (10) is fixedly installed on the bottom surface of the moving rod of the electric cylinder (9). A first stepper motor (3) is fixedly installed on the top surface of the base (1), and a first drive gear (4) is fixedly installed at the output end of the first stepper motor (3). A first driven gear (5) is fixedly sleeved on the outer surface of the rotating cylinder (2), and the first driven gear (5) The equipment box (11) is connected to the bottom surface of the equipment box (11) by a rotating connecting seat (16) and a rotating table (17) is fixedly installed on the top surface of the rotating column (15). The equipment box (11) is fixedly installed with a second stepper motor (12) and a second drive gear (13) is installed at the output end of the second stepper motor (12). The rotating column (15) is fixedly installed with a second driven gear (14) and the second driven gear (14) meshes with the second drive gear (13).

2. The ceramic tableware multi-color precision printing equipment according to claim 1, characterized in that, An ink table (7) is fixedly installed directly below the printing head (10), and the ink table (7) and the printing head (10) are a matching product.

3. The ceramic tableware multi-color precision printing equipment according to claim 1, characterized in that, The electric cylinder (9) and the printing head (10) are distributed in multiple groups at equal angles along the vertical central axis of the rotating cylinder (2).

4. The ceramic tableware multi-color precision printing equipment according to claim 1, characterized in that, The stepping frequencies of the first stepper motor (3) and the second stepper motor (12) are matched.

5. The ceramic tableware multi-color precision printing apparatus according to claim 1, wherein The rotating platform (17), rotating column (15), second driven gear (14) and rotating connecting seat (16) are arranged coaxially.

6. The multi-color precision printing equipment for ceramic tableware according to claim 1, characterized in that, The top of the rotating column (15) is rotatably connected to the top surface of the equipment box (11) via a bearing.

7. The multi-color precision printing equipment for ceramic tableware according to claim 1, characterized in that, The rotating platform (17) has a positioning ring printed at the center of its top surface, and the diameter of the positioning ring is equal to the diameter of the ceramic tableware placement end.

Images