Automatic turn-over device for single paperboard printing

Abstract

The utility model relates to an automatic turn-over device of a printing machine, in particular to a single paperboard printing automatic turn-over device which comprises a printing table, and a single paperboard turn-over mechanism is arranged at the top of the printing table. The turnover mechanism comprises a support, the support is rotationally arranged above the printing table, and the support is used for turning over the single paperboard so that the upper face and the lower face of the single paperboard can be printed. The printing table is further provided with a transmission structure, and the transmission structure is arranged on the side face of the printing table. An air drying mechanism is further arranged on the printing table and comprises fan blades, and the fan blades are arranged at the bottom of the support. According to the utility model, a transmission mechanical structure is adopted, continuous motion is converted into intermittent motion through the connection of the motor and the Japanese tile driving mechanism, and then the motor is connected with the large gear and the small gear, so that the automatic overturning effect is realized, and a series of problems occurring in industrial plc (programmable logic controller) are avoided.

Description

Technical Field

[0001] This utility model relates to an automatic flipping device for a printing press, specifically an automatic flipping device for single-sheet card printing. Background Technology

[0002] A cardboard printing press is a device specifically designed for printing patterns, text, or logos on the surface of cardboard. When printing a single sheet of cardboard, the cardboard printing press uses an automatic flipping mechanism. In current technology, the automatic flipping mechanism generally uses industrial PLC software to control the hardware for automatic flipping, which can achieve a good flipping effect.

[0003] However, existing technology for automatic flipping of single cardstock is simply flipping it, without drying the printed side after flipping or preheating the unprinted side.

[0004] Meanwhile, existing technologies have problems such as excessively high workshop temperatures during production, which can cause various electronic components in the workshop to malfunction, thus limiting the ability of a single cardboard sheet to be flipped. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic flipping device for single-sheet card printing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic flipping device for single-sheet card printing includes a printing table, and a single-sheet card flipping mechanism is provided on the top of the printing table.

[0008] The flipping mechanism includes a bracket, which is rotatably mounted above the printing table. The bracket is used to flip a single sheet of paper so that both the top and bottom sides of the single sheet of paper are printed.

[0009] The printing table is also equipped with a transmission structure, which is located on the side of the printing table.

[0010] The printing table is also equipped with a drying mechanism, which includes fan blades. The fan blades are located at the bottom of the support and are used to preheat the bottom of the support and to air dry the top of the support after it is flipped over.

[0011] As described above, the automatic flipping device for single-sheet card printing has a motor installed on the top of the printing table, and the output shaft of the motor is connected to a drive wheel, which is engaged with a driven wheel.

[0012] As described above, the automatic flipping device for single-sheet card printing has a large gear on one side of the driven wheel, which meshes with a small gear. The flipping mechanism also includes a first drive shaft, one end of which is connected to the small gear, and the bracket is disposed on the circumferential surface of the first drive shaft.

[0013] As described above, the automatic flipping device for single-sheet card printing has clamps on both sides of the support, which automatically clamp the single sheet of card through an external robotic arm.

[0014] The single-sheet card printing automatic flipping device described above: the transmission structure includes a first pulley, a belt strip, and a second pulley. The first pulley is mounted on the drive pulley, and the second pulley is rotatably mounted on the printing table. The first pulley and the second pulley are connected by a belt strip.

[0015] As described above, the automatic flipping device for single-sheet card printing includes: a second drive shaft on the second pulley, the second drive shaft being rotatably mounted on the printing table, a first bevel gear on the circumferential surface of the second drive shaft, a second bevel gear meshing with the first bevel gear, a connecting block rotatably connected to the second drive shaft via a bearing, the bottom of the second bevel gear being rotatably connected to the connecting block via a bearing, and one side of the connecting block being connected to the inner wall of the printing table, and a fan blade on the top of the second bevel gear, the fan blade being mounted at the bottom of the support.

[0016] As described above, the automatic flipping device for single-sheet card printing includes a heat insulation mesh on the printing table, which is located above the fan blades.

[0017] As described above, the automatic flipping device for single-sheet card printing has a heat source module on one side of the inner wall of the printing table. The heat source module is used to emit hot air that flows in the direction of the fan blades.

[0018] Compared with the prior art, the beneficial effects of this utility model are: by adopting a transmission mechanical structure, this utility model converts continuous motion into intermittent motion through the connection between the motor and the Geneva drive mechanism, and then through the connection with large and small gears, the automatic flipping effect is realized, avoiding a series of problems that occur in industrial PLCs.

[0019] This utility model also has a heat source module at the bottom of the bracket. The heat source module dissipates heat, and the fan blades preheat the unprinted side at the beginning. After the printed side is flipped to the bottom, it is air-dried, thus solving the problems mentioned in the background art. Attached Figure Description

[0020] Figure 1This is a three-dimensional schematic diagram of the overall structure of an automatic flipping device for single-sheet card printing.

[0021] Figure 2 This is a schematic diagram of another aspect of the automatic flipping device for single-sheet card printing.

[0022] Figure 3 This is a schematic diagram of the flipping mechanism in an automatic flipping device for single-sheet card printing.

[0023] Figure 4 This is a schematic diagram of the transmission structure in an automatic flipping device for single-sheet card printing.

[0024] Figure 5 This is a schematic diagram of the structure of the first bevel gear, the second bevel gear, and the connecting block in the automatic flipping device for single-sheet card printing.

[0025] Figure 6 This is a schematic diagram of the heat source module in an automatic flipping device for single-sheet card printing.

[0026] In the diagram: 1. Printing table; 2. Motor; 3. Drive wheel; 4. Driven wheel; 5. Large gear; 6. Small gear; 7. First drive shaft; 8. Bracket; 9. Fixture; 10. First pulley; 11. Belt strip; 12. Second pulley; 13. Second drive shaft; 14. First bevel gear; 15. Second bevel gear; 16. Connecting block; 17. Fan blade; 18. Heat insulation mesh; 19. Heat source module. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Please see Figures 1-6 As an embodiment of this utility model, the single-sheet card printing automatic flipping device includes a printing table 1, and a single-sheet card flipping mechanism is provided on the top of the printing table 1.

[0029] The flipping mechanism includes a bracket 8, which is rotatably disposed above the printing table 1. The bracket 8 is used to flip a single sheet of card so that both the top and bottom sides of the single sheet of card are printed.

[0030] The printing table 1 is also provided with a transmission structure, which is located on the side of the printing table 1.

[0031] The printing table 1 is also equipped with a drying mechanism, which includes a fan blade 17. The fan blade 17 is located at the bottom of the support 8. The fan blade 17 is used to preheat the bottom of the support 8 and to air dry the top of the support 8 after it is flipped over.

[0032] In this embodiment, when the machine is running, it first feeds the material onto the surface of the bracket 8 through the feeding mechanism of the external device (not shown here). Through the connection between the transmission structure and the flipping mechanism, the bracket 8 can be flipped so that the top side of the bracket 8 after printing can be flipped to the bottom, so that the other side of the single card is printed upwards.

[0033] At the bottom of the printing table 1, there is also a fan blade 17. The fan blade 17 is connected to the flipping mechanism through a transmission structure. When the flipping mechanism is running, it will drive the fan blade 17 to preheat and dry a single sheet of cardstock.

[0034] As a further embodiment of this utility model, a motor 2 is provided on the top of the printing table 1, and the output shaft of the motor 2 is connected to a drive wheel 3, with a driven wheel 4 meshing on the drive wheel 3.

[0035] In this embodiment, the motor 2 drives the drive wheel 3 to rotate through the output shaft. As can be seen from the figure, when the drive wheel 3 rotates one revolution, the driven wheel 4 will rotate 90 degrees, which is a quarter revolution.

[0036] By cooperating with the driving wheel 3 and the driven wheel 4, the continuous rotation of the output shaft of the motor 2 is converted into intermittent motion, which in turn causes the bracket 8 to rotate intermittently.

[0037] As a further embodiment of this utility model, a large gear 5 is provided on one side of the driven wheel 4, and the large gear 5 meshes with a small gear 6. The flipping mechanism also includes a first transmission shaft 7, one end of which is connected to the small gear 6, and the bracket 8 is provided on the circumferential surface of the first transmission shaft 7.

[0038] In this embodiment, the driven wheel 4 rotating a quarter turn will also drive the large gear 5 to rotate by the same degree. As can be seen from the figure, the diameter of the large gear 5 is twice the diameter of the small gear 6, thus achieving the effect of speeding up the small gear 6, that is, enabling the small gear 6 to rotate half a turn, i.e., 180 degrees.

[0039] Rotating 180 degrees allows the bracket 8 to automatically and intermittently flip, causing the top single card to flip 180 degrees and come to the bottom.

[0040] As a further improvement of this utility model, clamping components 9 are provided on both sides of the bracket 8, and the clamping components 9 automatically clamp a single sheet of paper by means of an external robotic arm.

[0041] In this embodiment, when the feeding mechanism feeds the support 8 from the top of the support 8, the external robotic arm clamps the single cardboard through the clamp 9 to prevent it from loosening during printing.

[0042] The printing technology used here is also existing technology. The external printing mechanism is not shown in the text, and its working principle will not be described in detail here.

[0043] As a further embodiment of this utility model, the transmission structure includes a first pulley 10, a belt strip 11, and a second pulley 12. The first pulley 10 is mounted on the drive wheel 3, and the second pulley 12 is rotatably mounted on the printing table 1. The first pulley 10 and the second pulley 12 are connected by the belt strip 11.

[0044] In this embodiment, the drive wheel 3 drives the first pulley 10 while rotating continuously, and the first pulley 10 drives the second pulley 12 to rotate through the belt 11.

[0045] Here, the kinetic energy of the drive wheel 3 is transmitted to the second pulley 12 through the transmission structure, so that the second pulley 12 has another purpose.

[0046] As a further embodiment of this utility model, a second drive shaft 13 is also provided on the second pulley 12. The second drive shaft 13 is rotatably mounted on the printing table 1. A first bevel gear 14 is provided on the circumferential surface of the second drive shaft 13. A second bevel gear 15 meshes with the first bevel gear 14. A connecting block 16 is rotatably connected to the second drive shaft 13 through a bearing. The bottom of the second bevel gear 15 is rotatably connected to the connecting block 16 through a bearing. One side of the connecting block 16 is connected to the inner wall of the printing table 1. A fan blade 17 is provided on the top of the second bevel gear 15. The fan blade 17 is located at the bottom of the bracket 8.

[0047] In this embodiment, the second pulley 12 drives the second drive shaft 13 to rotate continuously, the second drive shaft 13 drives the first bevel gear 14 to rotate, which in turn causes the second bevel gear 15 to rotate.

[0048] The engagement of the first bevel gear 14 and the second bevel gear 15 changes the direction of rotation, transforming the continuous longitudinal rotation into a continuous vertical rotation.

[0049] The top of the second bevel gear 15 is also equipped with a fan blade 17, which causes the fan blade 17 to rotate continuously on the top of the bracket 8 to air dry the single cardboard held on the bracket 8.

[0050] As a further improvement of this utility model, a heat insulation net 18 is also provided on the printing table 1, and the heat insulation net 18 is located above the fan blades 17.

[0051] In this embodiment, a heat insulation net 18 is also installed on the top of the fan blade 17. The heat insulation net 18 is set on the printing table 1. By setting the heat insulation net 18, the burning of individual cardboard sheets is prevented to a certain extent.

[0052] As a further embodiment of this utility model, a heat source module 19 is also provided on one side of the inner wall of the printing table 1. The heat source module 19 is used to emit hot air that flows in the direction of the fan blades 17.

[0053] In this embodiment, in conjunction with the previous embodiment, a heat source module 19 is also installed on the inner wall of the printing table 1. By connecting the power supply, the heat source module 19 generates heat, causing hot air to flow upward from the bottom of the heat insulation net 18. This preheats one side of the unprinted single card and dries the side of the printed single card after flipping, thus accelerating the printing process.

[0054] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A sheet-fed printing automatic turner, characterized by, Including printing platform (1), the top of printing platform (1) is provided with single sheet paper turnover mechanism; The turnover mechanism includes a bracket (8), which is rotatably arranged above the printing platform (1), and is used for turning over the single sheet paper, so that the upper and lower surfaces of the single sheet paper are printed. The printing platform (1) is further provided with a transmission structure, and the transmission structure is arranged on the side of the printing platform (1). The printing platform (1) is further provided with a drying mechanism, and the drying mechanism includes fan blades (17), which are arranged at the bottom of the bracket (8), and are used for preheating the bottom of the bracket (8) and drying the top of the bracket (8) after turning over.

2. A single sheet printing automatic turner according to claim 1, characterized in that, The top of the printing platform (1) is provided with a motor (2), the output shaft of the motor (2) is connected with a driving wheel (3), and the driving wheel (3) is engaged with a driven wheel (4).

3. A single sheet printing automatic turner according to claim 2, characterized in that, One side of the driven wheel (4) is provided with a large gear (5), the large gear (5) is engaged with a small gear (6), the turnover mechanism further includes a first transmission shaft (7), one end of the first transmission shaft (7) is connected with the small gear (6), and the bracket (8) is arranged on the peripheral surface of the first transmission shaft (7).

4. The single sheet printing automatic turner of claim 1, wherein The two sides of the bracket (8) are provided with clamp pieces (9), and the clamp pieces (9) are automatically clamped on the single sheet paper by an external mechanical hand.

5. A single sheet printing automatic turner according to claim 2, characterized in that, The transmission structure includes a first pulley (10), a belt strip (11) and a second pulley (12), the first pulley (10) is arranged on the driving wheel (3), the second pulley (12) is rotatably arranged on the printing platform (1), and the first pulley (10) and the second pulley (12) are connected through the belt strip (11).

6. A single sheet printing automatic turner according to claim 5, characterized in that, The second pulley (12) is further provided with a second transmission shaft (13), the second transmission shaft (13) is rotatably arranged on the printing platform (1), the peripheral surface of the second transmission shaft (13) is provided with a first bevel gear (14), the first bevel gear (14) is engaged with a second bevel gear (15), the second transmission shaft (13) is rotatably connected with a connecting block (16) through a bearing, the bottom of the second bevel gear (15) is rotatably connected with the connecting block (16) through a bearing, one side of the connecting block (16) is connected with the inner wall of the printing platform (1), the top of the second bevel gear (15) is provided with fan blades (17), and the fan blades (17) are arranged at the bottom of the bracket (8).

7. A single sheet printing automatic turner according to claim 6, characterized in that, The printing platform (1) is further provided with a heat insulation net (18), and the heat insulation net (18) is located above the fan blades (17).

8. A single sheet printing automatic turner according to claim 6, characterized in that, One side of the inner wall of the printing platform (1) is further provided with a heat source module (19), and the heat source module (19) is used to emit hot air flowing towards the fan blades (17).

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