Color register screen printing machine

Abstract

The utility model discloses a color register screen printing machine, which relates to the technical field of printing equipment, and comprises a supporting seat, a rotating table rotationally arranged on the supporting seat, a driving device for driving the rotating table to intermittently rotate, an object placing table arranged on the rotating table, and a positioning device arranged on the object placing table and used for positioning a printing stock, the rotary table is provided with a plurality of storage tables, the printing machine bodies are used for printing the printing stock placed on the storage tables, the storage tables are arranged on the rotary table in the circumferential direction, and the printing machine bodies are arranged along the rotary table; a material changing area and a printing area are arranged on the supporting base in the circumferential direction, the rotating table can convey a printing stock placed on the storage table to the printing area from the material changing area for printing, and the mixed color printing efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of printing equipment, and in particular to a color screen printing machine. Background Art

[0002] A screen printing machine is a machine used to print text and images. It is a general term for machines or equipment used to produce printed materials. Screen printing machines can be divided into flat screen printing machines, curved screen printing machines, rotary screen printing machines, etc. Among them, a flat screen printing machine uses a flat screen plate to print on a flat substrate. Generally, the squeegee presses the printing plate and moves horizontally, and the substrate is changed by raising and lowering the printing plate.

[0003] The Chinese utility model patent with publication number CN201362025Y discloses a semi-automatic printing machine, in which the printing machine places the substrate on the loading table, then moves the screen up and down, and prints the substrate with the help of a scraper and an oil return knife. When it is necessary to perform multi-color overprinting on some flat products, such as glass, cardboard, and the surface of flat equipment, multiple printing machines are required, and screens with different ink colors and different patterns are placed on each printing machine. After each printing machine completes printing, the semi-finished product is taken out and placed in the next printing machine for printing until all colors are printed.

[0004] With regard to the above-mentioned related technologies, when mixed color printing is required, the semi-finished products after printing need to be manually placed into the next printing machine, which is inefficient and labor-intensive. Utility Model Content

[0005] In order to improve the efficiency of mixed color printing, the present application provides a color screen printing machine.

[0006] The present application provides a color screen printing machine, which adopts the following technical solution:

[0007] A color screen printing machine includes a support base, a rotating table rotatably arranged on the support base, a driving device for driving the rotating table to rotate intermittently, a placing table arranged on the rotating table, a positioning device arranged on the placing table for positioning a substrate, and a printing body for printing the substrate placed on the placing table, wherein the placing tables are arranged circumferentially on the rotating table, and the printing bodies are arranged along the rotating table; a material changing area and a printing area are arranged circumferentially on the support base, and the rotating table can transport the substrate placed on the placing table from the material changing area to the printing area for printing.

[0008] By adopting the above technical solution, the printing material is placed on the placement table, and by driving the placement table to rotate, it passes through multiple printing bodies in sequence for multiple printings, and mixed color printing can be automatically performed, thereby improving printing efficiency.

[0009] Optionally, a support ring is provided on the support seat, and one end of the support ring away from the support seat is rotatably connected to the rotating table.

[0010] By adopting the above technical solution, when the turntable rotates, the support ring can support the turntable.

[0011] Optionally, the driving device includes a rotating shaft rotatably disposed on the support base, a worm wheel coaxially sleeved on the rotating shaft, a worm rotatably disposed on the support base, and a motor disposed on the support base, the output end of the motor is connected to the worm, the worm is meshed with the worm wheel, and the upper end of the rotating shaft is coaxially fixed to the rotating table.

[0012] By adopting the above technical solution, the motor is started, which can drive the worm to rotate, drive the worm wheel and the rotating shaft to rotate, and finally drive the rotating table to rotate.

[0013] Optionally, the storage table is detachably disposed on the rotating table, and the color screen printing machine further includes a fixing member for fixing the storage table on the rotating table.

[0014] By adopting the above technical solution, the storage table is detachable, so that the number of the storage tables arranged on the rotating table can be conveniently adjusted.

[0015] Optionally, the fixing member is a first bolt, the storage table is provided with a first hole for the first bolt to pass through and a second hole for accommodating the head of the fixing bolt, the rotating table is provided with a third hole for the first bolt to be threadedly connected, and a plurality of third holes are spaced apart along the circumference of the rotating table.

[0016] By adopting the above technical solution, the storage table can be fixed at any position on the rotating table, and multiple storage tables can also be set.

[0017] Optionally, the positioning device includes a positioning plate and a locking piece, the positioning plate is arranged on the storage table, the locking piece is used to fix the positioning plate on the storage table, the positioning plate is arranged on one end of the storage table close to the central axis of the rotating table, and the positioning plates are respectively arranged on both sides of the storage table close to adjacent storage tables, the positioning device also includes a slide plate slidably arranged on the storage table, and an elastic piece that drives the slide plate to slide toward the central axis of the rotating table to press the workpiece against the positioning plate.

[0018] By adopting the above technical solution, three positioning plates are provided to preliminarily position the printing material, and then the printing material is pressed against the positioning plate by the elastic member to position the printing material.

[0019] Optionally, the locking member is a second bolt, a fourth hole for the second bolt to pass through is formed on the positioning plate, and a fifth hole for the second bolt to be threadedly connected is formed on the storage platform.

[0020] Optionally, the fourth hole extends on the positioning plate along a direction close to the center of the storage table.

[0021] By adopting the above technical solution and changing the position where the second thread passes through the fourth hole, the distance between the positioning plate and the center of the storage table can be adjusted, thereby being able to accommodate printing materials of different sizes.

[0022] Optionally, a guide block is provided at one end of the slide plate facing the storage table, and a guide groove for the guide block to slide and insert is provided on the storage table.

[0023] Optionally, the elastic member is a spring, and the spring is connected between the inner bottom wall of the guide groove and the end face of the guide block.

[0024] By adopting the above technical solution, the slide plate can be driven to press the printing material against the positioning plate.

[0025] In summary, the present application includes at least one of the following beneficial effects:

[0026] 1. The driving device drives the rotating table to rotate intermittently, so that the substrates on the storage table can be sent to the bottom of multiple printing bodies in sequence for mixed color printing;

[0027] 2. The printing substrate can be positioned between the slide plate and the positioning plate by means of the elastic member, thereby quickly positioning the printing substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0029] Figure 2 is a schematic diagram of the structure of the driving device;

[0030] Figure 3 is a schematic diagram of the structure of the positioning device;

[0031] Figure 4 It is a schematic diagram of the explosion structure of the positioning device.

[0032] Explanation of the reference numerals in the accompanying drawings: 101, substrate; 1, support seat; 11, material changing area; 12, printing area; 13, support ring; 2, rotating table; 21, third hole; 3, driving device; 31, rotating shaft; 32, worm gear; 33, worm; 34, motor; 4, storage table; 41, first hole; 42, second hole; 43, fifth hole; 44, guide groove; 5, positioning device; 51, positioning plate; 511, fourth hole; 52, locking member; 521, second bolt; 53, slide plate; 531, guide block; 54, elastic member; 541, spring; 6, printing machine body; 7, fixing member; 71, first bolt. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 This application is described in further detail.

[0034] The present application embodiment discloses a color screen printing machine. Figure 1 The color screen printing machine includes a support base 1, a rotating table 2 rotatably arranged above the support base 1, a driving device 3 for driving the rotating table 2 to rotate intermittently, a placing table 4 detachably fixed on the rotating table 2, a positioning device 5 for positioning a printing material 101 on the placing table 4, and a printing body 6 detachably fixed on the support base 1 by means of bolts or the like.

[0035] Reference Figure 1 , there are multiple printing bodies 6 fixed on the support seat 1, and all of them are arranged outside the rotating table 2; there are also multiple storage tables 4 on the rotating table 2, and the number of storage tables 4 is more than that of printing bodies 6; specifically, in the present embodiment, there are six storage tables 4 circumferentially arranged on the rotating table 2, and four printing bodies 6 are arranged; the position where the four printing bodies 6 on the support seat 1 are located is the printing area 12, and the position where the printing body 6 is not arranged is the material changing area 11; a screen for printing a substrate 101 is arranged on the printing body 6, and different colors of ink can be placed on the screens of the four printing bodies 6; when in use, the material changing area 11 now positions the substrate 101 on the storage table 4 through the positioning device 5, and then, driven by the driving device 3, the substrate 101 is rotated to the bottom of the screens of the four printing bodies 6 in turn for mixed color printing, and finally rotates to the material changing area 11 for unloading, so that compared with the method of manually placing the substrate 101 on the printing press for printing every time, the printing efficiency is higher.

[0036] Optionally, in other embodiments, a device for drying the ink on the substrate 101, such as an infrared dryer, may be placed behind each printing machine body 6. In this case, it is only necessary to adjust the angle of each rotation of the rotating table 2.

[0037] Reference Figure 1 and Figure 2In this embodiment, the support base 1 includes a rectangular panel and support legs for supporting the panel. A support ring 13 is fixed to the upper surface of the support base 1. The support ring 13 is in a circular ring shape. An annular groove for inserting the support ring 13 is provided on the lower surface of the turntable 2. The upper end of the support ring 13 is inserted into the annular groove and can be rotatably connected to the turntable 2 by means of bearings or the like, thereby supporting the turntable 2.

[0038] Reference Figure 2 In the present embodiment, the support seat 1 comprises a rotating shaft 31 rotatably connected to the support seat 1 through a bearing, a worm wheel 32 coaxially sleeved on the outer side wall of the rotating shaft 31, a worm 33 rotatably arranged on the support seat 1, and a motor 34 fixed to the support seat 1 through bolts or the like, wherein the upper end of the rotating shaft 31 is rotatably connected to the lower surface of the rotating table 2, the lower end of the rotating shaft 31 passes through a rectangular panel of the support seat 1, a plurality of supports are fixed on the lower surface of the rectangular panel of the support seat 1, the worm 33 is rotatably connected between two supports, the worm 33 is meshed with the worm wheel 32, the output shaft of the motor 34 is connected to the worm 33, the motor 34 is preferably a stepping motor 34, which can rotate intermittently, thereby driving the motor 34, which can drive the worm 33 to rotate, drive the worm wheel 32 to rotate, drive the rotating shaft 31 and the rotating table 2 to rotate, so as to drive the placement table 4 to rotate in sequence to the bottom of each printing machine body 6 for printing.

[0039] Reference Figure 3 and Figure 4 The placement table 4 can be detachably arranged on the rotating table 2, so that the number of the placement tables 4 arranged on the rotating table 2 can be changed, and the sleeve screen printing machine also includes a fixing member 7 for fixing the placement table 4 on the rotating table 2. The fixing member 7 is a first bolt 71, and the first bolt 71 is preferably a countersunk bolt. The placement table 4 is provided with a first hole 41 for the first bolt 71 to pass through, and a second hole 42 for accommodating the head of the fixing bolt. The rotating table 2 is provided with a third hole 21 for the first bolt 71 to be threadedly connected, so that the first bolt 71 is sequentially passed through the second hole 42 and the first hole 41, and is threadedly connected with the third hole 21, so that the placement table 4 can be fixed on the rotating table 2.

[0040] A plurality of first bolts 71 can be provided on the same placement table 4. In the present embodiment, four first bolts 71 are provided on each placement table 4. A plurality of third holes 21 are opened circumferentially on the rotating table 2, so that the placement table 4 can be adjusted and fixed on the rotating table 2.

[0041] Reference Figure 3 and Figure 4In this embodiment, the positioning device 5 includes a positioning plate 51 detachably arranged on the upper surface of the placement table 4 and a positioning member fixing the positioning plate 51 on the placement table 4. The placement table 4 is provided with positioning plates 51 in three directions except for one end away from the central axis of the rotating table 2, and the three positioning plates 51 are mutually "U"-shaped, and the substrate 101 can be placed between the three positioning plates 51. The positioning device 5 also includes a slide plate 53 that can slide in a direction close to or away from the central axis of the rotating table 2, and an elastic member 54 that drives the slide plate 53 to slide toward the central axis of the rotating table 2.

[0042] Reference Figure 3 and Figure 4 In this embodiment, the cross-section of the storage table 4 can be rectangular, the positioning plate 51 can also be a rectangular thin plate, the locking member 52 is a second bolt 521, and the positioning plate 51 is provided with a fourth hole 511 for the second bolt 521 to pass through, and the upper surface of the storage table 4 is provided with a fifth hole 43 for the second bolt 521 to be threadedly connected. The second bolt 521 is passed through the fourth hole 511 and is threadedly connected with the fifth hole 43, so that the positioning plate 51 can be locked on the storage table 4; the locking member 52 is respectively provided on each positioning plate 51. It is worth noting that in order to facilitate the printing of the substrate 101 when the screen is pressed down, when the second bolt 521 fixes the positioning plate 51 on the storage table 4, the upper surface of the head of the second bolt 521 is lower than the upper surface of the substrate 101; in other embodiments, when it is necessary to print some substrates 101 with smaller thickness, the positioning device 5 can also be items such as tape.

[0043] Reference Figure 3 and Figure 4 In this embodiment, further, the fourth hole 511 can extend along the direction close to the center of the placement table 4, so that the position of the positioning plate 51 can be adjusted along the direction close to or away from the center of the placement table 4, that is, the size of the space for placing the substrate 101 can be changed to accommodate substrates 101 of different sizes.

[0044] Reference Figure 3 and Figure 4In this embodiment, the cross section of the slide plate 53 is rectangular, and it is slidably arranged at one end of the storage platform 4 away from the central axis of the rotating platform 2; a guide block 531 is fixed on the side wall of the slide plate 53 facing the storage platform 4, and the fixed block shape is limited, and can be a cylindrical block or a rectangular block, etc. The guide blocks 531 are respectively arranged at both ends of the slide plate 53, and a guide groove 44 for the guide block 531 to be inserted is provided on the side wall of the storage platform 4 facing the slider, and the elastic member 54 is a spring 541 arranged in the guide groove 44, one end of the spring 541 is connected to the side wall of the guide block 531, and the other end is fixed to the guide groove 44. When the substrate 101 is placed between the three positioning plates 51 on the storage platform 4, the slide plate 53 can be pressed against the substrate 101 under the elastic force of the spring 541. In order to facilitate the sliding of the slide plate 53, a groove for helping to apply force can be provided on the upper surface of the slide plate 53.

[0045] The implementation principle of a color screen printing machine in the embodiment of the present application is as follows: when printing, a corresponding number of printing bodies 6 are installed on the support seat 1 according to the number of mixed colors required, and a placement table 4 is fixed on the rotating table 2; when printing, the printing material 101 is placed between the positioning plates 51 in the material change area 11, and the printing material 101 is pressed against the sliding plate 53, and the printing material 101 on the placement table 4 can be driven by the driving device 3 to be sent to the bottom of the printing body 6 for printing, and finally the material change area 11 is rotated to unload the material and replace it with a new substrate 101.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A color screen printing machine, characterized in that: The invention comprises a support base (1), a rotating table (2) rotatably arranged on the support base (1), a driving device (3) for driving the rotating table (2) to rotate intermittently, a storage table (4) arranged on the rotating table (2), a positioning device (5) arranged on the storage table (4) for positioning a printing material (101), and a printing machine body (6) for printing the printing material (101) placed on the storage table (4), wherein a plurality of the storage tables (4) are arranged circumferentially on the rotating table (2), and a plurality of the printing machine bodies (6) are arranged along the rotating table (2); a material changing area (11) and a printing area (12) are arranged circumferentially on the support base (1), and the rotating table (2) can transport the printing material (101) placed on the storage table (4) from the material changing area (11) to the printing area (12) for printing.

2. A color screen printing machine according to claim 1, characterized in that: A support ring (13) is provided on the support seat (1), and one end of the support ring (13) away from the support seat (1) is rotatably connected to the rotating platform (2).

3. A color screen printing machine according to claim 2, characterized in that: The driving device (3) comprises a rotating shaft (31) rotatably arranged on the support base (1), a worm wheel (32) coaxially sleeved on the rotating shaft (31), a worm (33) rotatably arranged on the support base (1), and a motor (34) arranged on the support base (1), wherein an output end of the motor (34) is connected to the worm (33), the worm (33) is meshed with the worm wheel (32), and an upper end of the rotating shaft (31) is coaxially fixed to the rotating table (2).

4. The color screen printing machine according to claim 1, characterized in that: The storage table (4) is detachably arranged on the rotating table (2), and the color screen printing machine also includes a fixing part (7) for fixing the storage table (4) on the rotating table (2).

5. A color screen printing machine according to claim 4, characterized in that: The fixing member (7) is a first bolt (71), the storage platform (4) is provided with a first hole (41) for the first bolt (71) to pass through and a second hole (42) for accommodating the head of the fixing bolt, the rotating platform (2) is provided with a third hole (21) for the first bolt (71) to be threadedly connected, and a plurality of third holes (21) are provided at intervals along the circumference of the rotating platform (2).

6. A color screen printing machine according to any one of claims 1 to 5, characterized in that: The positioning device (5) comprises a positioning plate (51) and a locking member (52), wherein the positioning plate (51) is arranged on the storage platform (4), and the locking member (52) is used to fix the positioning plate (51) on the storage platform (4). The positioning plate (51) is arranged on one end of the storage platform (4) close to the central axis of the rotating platform (2), and the positioning plates (51) are respectively arranged on both sides of the storage platform (4) close to adjacent storage platforms (4). The positioning device (5) further comprises a slide plate (53) slidably arranged on the storage platform (4), and an elastic member (54) driving the slide plate (53) to slide in the direction of the central axis of the rotating platform (2) so as to press the workpiece against the positioning plate (51).

7. A color screen printing machine according to claim 6, characterized in that: The locking member (52) is a second bolt (521), the positioning plate (51) is provided with a fourth hole (511) for the second bolt (521) to pass through, and the storage platform (4) is provided with a fifth hole (43) for the second bolt (521) to be threadedly connected.

8. The color screen printing machine according to claim 7, characterized in that: The fourth hole (511) extends on the positioning plate (51) in a direction close to the center of the storage platform (4).

9. The color screen printing machine according to claim 6, characterized in that: A guide block (531) is provided at one end of the slide plate (53) facing the storage platform (4), and a guide groove (44) for the guide block (531) to be slidably inserted is provided on the storage platform (4).

10. A color screen printing machine according to claim 9, characterized in that: The elastic member (54) is a spring (541), and the spring (541) is connected between the inner bottom wall of the guide groove (44) and the end surface of the guide block (531).

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