Automatic multicolor transfer printing production line

Abstract

The utility model relates to an automatic multicolor transfer printing production line which comprises a machine frame, a workbench is arranged on the machine frame, a rotary conveying mechanism is arranged on the workbench, and a plurality of clamping jigs are arranged on the rotary conveying mechanism at equal intervals. The flame treatment mechanism, the transfer printing mechanism and the discharging mechanism are sequentially arranged in the rotating direction of the rotary conveying mechanism, the flame treatment mechanism and the discharging mechanism are arranged on the workbench, the transfer printing mechanism is arranged on the rack and located on one side of the workbench, and the portion, between the flame treatment mechanism and the discharging mechanism, of the workbench is further provided with a feeding station. A plurality of pad printing rubber heads are sequentially arranged on the pad printing mechanism in the rotating direction of the rotary conveying mechanism, and an ink supply assembly corresponding to the pad printing rubber head is arranged on the rear side of each pad printing rubber head. The flame treatment mechanism and the transfer printing mechanism are sequentially arranged along the rotary conveying mechanism, flame activation pretreatment and multicolor transfer printing operation can be sequentially carried out through one-time feeding, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of pad printing equipment, in particular to an automatic multi-color pad printing production line. Background Art

[0002] The mobile transfer printing method, abbreviated as the pad printing method, is to "develop" the pattern and text to be printed on the steel plate through a positive film, and etch it into an intaglio plate with a certain depth; place the intaglio plate on the ink tray, and the machine automatically inks and scrapes off the ink outside the pattern during operation, and then the rubber head presses against the intaglio plate to pick up the pattern ink and transfer it to the object to be printed. The pad printing method is suitable for printing products made of materials such as plastics, glass, and ceramics, and has the advantages of strong adaptability and good printing effect, and has become the main printing method for printing on the surfaces of various objects.

[0003] With the development of technology, people's requirements for colors and patterns are getting higher and higher. Many products need to be printed with multiple different colors in a pad printing machine. And for some products made of certain materials, such as PP, PET, etc., in order to enhance the adhesion of the printing ink, flame activation pretreatment is required before pad printing. However, there is no flame activation treatment station in the existing multi-color pad printing equipment, such as the Chinese utility model patents CN216993546U and CN106064525A; therefore, when using the above-mentioned pad printing equipment for multi-color printing, it is necessary to perform pretreatment in a flame activation treatment equipment and then transfer it to the pad printing equipment for pad printing operations, resulting in low production efficiency and inability to achieve large-scale continuous production and processing.

[0004] Therefore, it is necessary to provide a technical solution to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an automatic multi-color pad printing production line, which can solve the technical problem that the flame activation pretreatment in the prior art and the multi-color pad printing operation need to be carried out in different equipment, resulting in low production efficiency.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An automated multi-color pad printing production line includes a frame, on which a workbench is provided. A rotary conveying mechanism is arranged on the workbench, and a plurality of clamping fixtures are equidistantly arranged on the rotary conveying mechanism. A flame treatment mechanism, a pad printing mechanism and a blanking mechanism are sequentially arranged along the rotation direction of the rotary conveying mechanism. The flame treatment mechanism and the blanking mechanism are arranged on the workbench, and the pad printing mechanism is arranged on the frame and on one side of the workbench. A loading station is also arranged on the workbench between the flame treatment mechanism and the blanking mechanism; on the pad printing mechanism, a plurality of pad printing rubber heads are sequentially arranged along the rotation direction of the rotary conveying mechanism, and a corresponding ink supply component is arranged behind each pad printing rubber head.

[0008] Further, the flame treatment mechanism includes a gas mixing pipe, the inlet end of the gas mixing pipe is connected with a gas supply mechanism and an air supply mechanism, the outlet end of the gas mixing pipe is connected with a flame burner, and an electronic igniter is arranged on one side of the flame burner.

[0009] Further, the flame treatment mechanism further includes a fixed cross plate fixedly connected with the workbench. One end of the fixed cross plate far away from the workbench is connected with an installation vertical plate, and a horizontal driving mechanism is installed on the installation vertical plate. The output end of the horizontal driving mechanism is connected with the flame burner.

[0010] Further, an auxiliary material pressing mechanism is also arranged on the workbench between the loading station and the flame treatment mechanism.

[0011] Further, the auxiliary material pressing mechanism includes an installation frame, which includes two support legs. The two support legs are respectively arranged on both sides of the rotary conveying mechanism and fixedly connected with the workbench. The tops of the two support legs are connected with a top plate, and a driving component is arranged on the top plate. The output end of the driving component passes through the top plate and is connected with a pressing block.

[0012] Further, a hot air blowing mechanism is also arranged on the workbench between the pad printing mechanism and the blanking mechanism.

[0013] Further, a hot air supply mechanism is also arranged on the frame. The outlet end of the hot air supply mechanism is connected with a hot air pipeline, and the hot air pipeline extends into the pad printing mechanism. Air outlets are arranged on the hot air pipeline corresponding to each pad printing rubber head, and a switch valve is arranged on each air outlet.

[0014] Further, a lifting and adjusting mechanism is arranged on the frame, and the bottom of the workbench is connected with the top of the lifting and adjusting mechanism.

[0015] Further, the blanking mechanism includes two fixed legs, which are respectively arranged on both sides of the rotary conveying mechanism and fixedly connected to the workbench. A driving mechanism is installed at the top of the two fixed legs, and the output end of the driving mechanism is connected with a pushing member. An inclined material guiding groove is also penetrated through the fixed leg located outside the workbench, and the inclined material guiding groove extends in a direction away from the workbench.

[0016] Further, the driving mechanism includes a front-back driving cylinder, and the output end of the front-back driving cylinder is connected with the pushing member.

[0017] The beneficial effects of the present utility model are as follows:

[0018] (1) At the loading station, manual loading or robotic loading is carried out. The workpiece is placed in the clamping fixture by manual or robotic means, and the rotary conveying mechanism operates, so that the clamping fixture drives the workpiece thereon to sequentially pass through the flame treatment mechanism, the pad printing mechanism, and the blanking mechanism. In this way, the workpiece can be flame-activated pre-treated, multi-color pad printed, and blanked in sequence with one-time loading, without the need to transfer the workpiece to the pad printing equipment after pre-treatment in the flame activation treatment equipment, effectively improving the production efficiency and facilitating mass continuous production and processing;

[0019] (2) By arranging an auxiliary pressing mechanism between the loading station and the flame treatment mechanism, when the clamping fixture moves the workpiece to the position of the auxiliary pressing mechanism, the driving component in the auxiliary pressing mechanism drives the pressing block to move to the top of the workpiece and press the workpiece, ensuring that the workpiece is clamped in place in the clamping fixture, thereby ensuring the subsequent printing accuracy. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the automatic multi-color pad printing production line of the present utility model.

[0021] Figure 2 It is a schematic structural diagram of another angle of the automatic multi-color pad printing production line of the present utility model.

[0022] Figure 3 It is a schematic structural diagram of the flame treatment mechanism of the present utility model.

[0023] Figure 4 It is a schematic structural diagram of the hot air supply mechanism and the hot air pipeline of the present utility model.

[0024] Figure 5 It is a schematic structural diagram of the blanking mechanism of the present utility model.

[0025] Description of the Reference Numerals

[0026] 1 - Frame; 2 - Workbench; 3 - Rotary conveying mechanism; 4 - Clamping fixture; 6 - Flame treatment mechanism; 61 - Fixed horizontal plate; 62 - Mounting vertical plate; 63 - Gas mixing pipe; 64 - Flame burner; 65 - Electronic igniter; 66 - Horizontal drive mechanism; 7 - Pad printing mechanism; 8 - Unloading mechanism; 81 - Fixed support leg; 82 - Pushing member; 83 - Inclined feeding chute; 84 - Front and rear driver; 9 - Auxiliary pressing mechanism; 91 - Support leg; 92 - Top plate; 93 - Pressing block; 10 - Hot air blowing mechanism; 11 - Hot air supply mechanism; 12 - Hot air duct; 13 - Air outlet; 14 - Switch valve; 15 - Lifting and adjusting mechanism. Detailed implementation manner

[0027] For the convenience of understanding by those skilled in the art, the following further describes the present utility model in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation manner does not limit the present utility model.

[0028] Embodiment 1

[0029] As Figures 1 to 5 shown, an automated multi-color pad printing production line provided by the present utility model includes a frame 1. A workbench 2 is arranged on the frame 1. A rotary conveying mechanism 3 is arranged on the workbench 2. A plurality of clamping fixtures 4 are equidistantly arranged on the rotary conveying mechanism 3. A flame treatment mechanism 6, a pad printing mechanism 7, and an unloading mechanism 8 are sequentially arranged along the rotation direction of the rotary conveying mechanism 3. The flame treatment mechanism 6 and the unloading mechanism 8 are arranged on the workbench 2. The pad printing mechanism 7 is arranged on the frame 1 and on one side of the workbench 2. A loading station is also arranged on the workbench between the flame treatment mechanism 6 and the unloading mechanism 8. A plurality of pad printing heads 71 are sequentially arranged on the pad printing mechanism 7 along the rotation direction of the rotary conveying mechanism 3, and an ink supply assembly 72 corresponding to each pad printing head 71 is arranged behind it.

[0030] In practical applications, at the loading station, manual loading or robotic arm loading is used. The workpiece is placed in the clamping fixture 4 by manual or robotic means, and the clamping fixture 4 can be replaced according to the specific shape of the workpiece. The rotary conveying mechanism 3 can be a transmission chain or a conveyor belt. A groove for accommodating the transmission chain or conveyor belt is provided on the workbench. A plurality of clamping fixtures 4 are arranged at equal intervals on the upper surface of the transmission chain or conveyor belt. The transmission chain or conveyor belt is driven to operate by a motor and a transmission pulley set, so that the clamping fixture 4 drives the workpiece thereon to sequentially pass through the flame treatment mechanism 6, the pad printing mechanism 7, and the unloading mechanism 8. In the pad printing mechanism 7, a plurality of pad printing heads 71 sequentially print on the workpiece. In this way, the workpiece can be subjected to flame activation pretreatment, multi-color pad printing, and unloading operations after one loading, without the need to transfer the workpiece to the pad printing equipment after pretreatment in the flame activation treatment equipment, effectively improving the production efficiency and facilitating large-scale continuous production and processing. The pad printing head 71 and the ink supply assembly 72 are prior arts and will not be elaborated herein.

[0031] Further, the flame treatment mechanism 6 includes a gas mixing pipe 63. The inlet end of the gas mixing pipe 63 is connected to a fuel gas supply mechanism and an air supply mechanism. The outlet end of the gas mixing pipe 63 is connected to a flame burner 64. An electronic igniter 65 is arranged on one side of the flame burner 64. The flame treatment mechanism 6 further includes a fixed horizontal plate 61 fixedly connected to the workbench 2. One end of the fixed horizontal plate 61 away from the workbench 2 is connected to a mounting vertical plate 62. A horizontal driving mechanism 66 is mounted on the mounting vertical plate 62. The output end of the horizontal driving mechanism 66 is connected to the flame burner 64.

[0032] In this embodiment, the mounting vertical plate 62 can be adjusted vertically relative to the fixed horizontal plate 61, so that the heights of the gas mixing pipe 63, the flame burner 64, and the electronic igniter 65 can be adjusted according to the heights of the clamping fixture 4 and the workpiece. Moreover, the horizontal positions of the gas mixing pipe 63, the flame burner 64, and the electronic igniter 65 can be adjusted by the horizontal driving mechanism 66 to adapt to the horizontal position of the workpiece. Specifically, the inlet end of the gas mixing pipe 63 is respectively connected to the fuel gas supply mechanism and the air supply mechanism through pipelines, and a fuel gas flow regulating valve and an air flow regulating valve are respectively arranged on the corresponding pipelines, so as to facilitate adjusting the ratio of the fuel gas and air entering the gas mixing pipe 63. The gas mixing pipe 63 has a certain length, which helps to ensure the full mixing of air and fuel gas. Figure 3As shown, a horizontal driving mechanism 66 is arranged at the upper end of the mounting vertical plate 62. The horizontal driving mechanism 66 specifically includes a driving cylinder and guide rods located on both sides of the driving cylinder. The output end of the driving cylinder and the working end of the guide rod are connected to the flamer 64, which can ensure the movement direction of the flamer 64; and the gas mixing tube 63 is slidingly arranged relative to the mounting vertical plate 62. When the horizontal driving mechanism 66 drives the flamer 64 to move, the gas mixing tube 63 also moves with it to avoid affecting the connection between the outlet end of the gas mixing tube 63 and the flamer 64.

[0033] Furthermore, the frame 1 is provided with a lifting and adjusting mechanism 15, and the bottom of the workbench 2 is connected to the top of the lifting and adjusting mechanism 15. Figure 2 As shown, the lifting adjustment mechanism 15 is specifically a lifting screw and an adjustment hand wheel threadedly connected to the lifting screw, and the top of the lifting screw is rotatably connected to the bottom of the workbench 2. In this embodiment, by setting the lifting adjustment mechanism 15, it is convenient to adjust the upper and lower heights of the workbench 2 according to actual production conditions, thereby adjusting the distance between the workpiece and the pad printing rubber head 71.

[0034] Further, the unloading mechanism 8 includes two fixed legs 81, which are respectively arranged on both sides of the rotary conveying mechanism 3 and fixedly connected to the workbench 2, and a driving mechanism is installed on the top of the two fixed legs 81, and a pusher 82 is connected to the output end of the driving mechanism. The fixed legs 81 located outside the workbench 2 are also provided with an inclined material guide groove 83, which extends in a direction away from the workbench 2. Preferably, the driving mechanism includes a front and rear driving cylinder 84, and the output end of the front and rear driving cylinder 84 is connected to the pusher 82.

[0035] In this embodiment, by arranging the two fixed legs 81 of the unloading mechanism 8 on both sides of the rotary conveying mechanism 3, the rotary conveying mechanism 3 can pass through the bottom of the unloading mechanism 8, and the pushing member 82 in the unloading mechanism 8 is located on the inner side of the clamping fixture 4. Figure 5 As shown; when the workpiece is processed, the clamping fixture 4 releases the workpiece and lifts the workpiece upward. At this time, the height of the pushing member 82 is adapted to the height of the workpiece, and the front and rear driving cylinders 84 drive the pushing member 82 to move toward the inclined material guide trough 83. The inlet end of the inclined material guide trough 83 is located on the inner side of the fixed support leg 81 on which it is installed, and the outlet end of the inclined material guide trough 83 is located on the outer side of the fixed support leg 81 on which it is installed. The pushing member 82 pushes the workpiece to the inlet end of the inclined material guide trough 83, and the workpiece moves downward along the inclined material guide trough 83 to the outlet end of the inclined material guide trough 83, and the driving mechanism is reset to realize automatic unloading of the workpiece. A collection frame can be set at the outlet end of the inclined material guide trough 83 to collect the processed workpieces.

[0036] Example 2

[0037] On the basis of Example 1, Example 2 further defines that: an auxiliary pressing mechanism 9 is further arranged on the workbench 2 between the loading station and the flame treatment mechanism 6. Preferably, the auxiliary pressing mechanism 9 includes a mounting frame, the mounting frame includes two support legs 91, the two support legs 91 are respectively arranged on both sides of the rotary conveying mechanism 3 and fixedly connected to the workbench 2, the top of the two support legs 91 is connected with a top plate 92, a driving component is arranged on the top plate 92, and the output end of the driving component passes through the top plate 92 and is connected with a pressing block 93.

[0038] In this embodiment, by arranging the two support legs 91 on both sides of the rotary conveying mechanism 3 respectively, the auxiliary pressing mechanism 9 is arranged across the rotary conveying mechanism 3, and the pressing block 93 is located above the workpiece; when the workpiece is placed in the clamping fixture 4 manually or by a manipulator, the workpiece may not be placed in place in the clamping fixture 4, which may affect the printing accuracy of the workpiece; by arranging the auxiliary pressing mechanism 9 between the loading station and the flame treatment mechanism 6, when the clamping fixture 4 drives the workpiece to move to the position of the auxiliary pressing mechanism 9, the driving component in the auxiliary pressing mechanism 9 drives the pressing block 93 to move to the top of the workpiece and press down the workpiece, ensuring that the workpiece is clamped in place in the clamping fixture 4, so as to ensure the subsequent printing accuracy.

[0039] Example 3

[0040] On the basis of Example 1, Example 3 further defines that: a hot air blowing mechanism 10 is further arranged on the workbench 2 between the pad printing mechanism 7 and the unloading mechanism 8. In this embodiment, by arranging the hot air blowing mechanism 10 between the pad printing mechanism 7 and the unloading mechanism 8, it helps the ink on the surface of the workpiece after pad printing to dry quickly; specifically, the hot air blown by the hot air blowing mechanism 10 covers several clamping fixtures 4, such as covering 3 to 4 clamping fixtures 4, so that the workpiece can be subjected to hot air blowing treatment at 3 to 4 operating stations, ensuring the effect of ink drying. The specific structure of the hot air blowing mechanism 10 is the prior art and will not be elaborated here.

[0041] Furthermore, a hot air supply mechanism 11 is further arranged on the frame 1, the outlet end of the hot air supply mechanism 11 is connected with a hot air duct 12, the hot air duct 12 extends into the pad printing mechanism 7, and air outlets 13 are arranged on the hot air duct 12 corresponding to each pad printing head 71, and a switch valve 14 is arranged on each air outlet 13.

[0042] As Figure 4As shown in the figure, in this embodiment, air outlets 13 are provided at positions corresponding to each pad printing head 71 on the hot air duct 12. After the pad printing head 71 picks up ink from the ink supply assembly 72, the hot air supply mechanism 11 supplies hot air to the air outlets 13, and the air outlets 13 blow the hot air to the pad printing head 71, causing partial volatilization of the solvent in the ink on the pad printing head 71, preventing fine feathery burrs from appearing at the edges of the pattern after pad printing, and ensuring the printing effect.

[0043] The above-described embodiments merely represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. An automated multi-color pad printing production line, comprising a frame (1), characterized in that: A workbench (2) is provided on the frame (1). A rotary conveying mechanism (3) is provided on the workbench (2). A plurality of clamping jigs (4) are equidistantly arranged on the rotary conveying mechanism (3). A flame treatment mechanism (6), a pad printing mechanism (7), and a blanking mechanism (8) are sequentially arranged along the rotation direction of the rotary conveying mechanism (3). The flame treatment mechanism (6) and the blanking mechanism (8) are provided on the workbench (2). The pad printing mechanism (7) is provided on the frame (1) and is located on one side of the workbench (2). A loading station is further provided on the workbench between the flame treatment mechanism (6) and the blanking mechanism (8). A plurality of pad printing heads (71) are sequentially arranged on the pad printing mechanism (7) along the rotation direction of the rotary conveying mechanism (3), and a corresponding ink supply assembly (72) is provided behind each pad printing head (71).

2. The automated multi-color pad printing production line according to claim 1, wherein: The flame treatment mechanism (6) includes a gas mixing pipe (63). The inlet end of the gas mixing pipe (63) is connected to a gas supply mechanism and an air supply mechanism. The outlet end of the gas mixing pipe (63) is connected to a flame burner (64). An electronic igniter (65) is provided on one side of the flame burner (64).

3. The automated multi-color pad printing production line according to claim 2, wherein: The flame treatment mechanism (6) further includes a fixed cross plate (61) fixedly connected to the workbench (2). One end of the fixed cross plate (61) far from the workbench (2) is connected to a mounting vertical plate (62). A horizontal driving mechanism (66) is mounted on the mounting vertical plate (62). The output end of the horizontal driving mechanism (66) is connected to the flame burner (64).

4. The automated multi-color pad printing production line according to claim 1, wherein: An auxiliary material pressing mechanism (9) is further provided on the workbench (2) between the loading station and the flame treatment mechanism (6).

5. The automated multi-color pad printing production line according to claim 4, wherein: The auxiliary material pressing mechanism (9) includes a mounting frame. The mounting frame includes two support legs (91). The two support legs (91) are respectively arranged on both sides of the rotary conveying mechanism (3) and are fixedly connected to the workbench (2). The tops of the two support legs (91) are connected to a top plate (92). A driving assembly is provided on the top plate (92). The output end of the driving assembly passes through the top plate (92) and is connected to a pressing block (93).

6. The automated multi-color pad printing production line according to claim 1, wherein: A hot air blowing mechanism (10) is further provided on the workbench (2) between the pad printing mechanism (7) and the blanking mechanism (8).

7. The automated multi-color pad printing production line according to claim 1, wherein: A hot air supply mechanism (11) is further provided on the frame (1). The outlet end of the hot air supply mechanism (11) is connected to a hot air pipe (12). The hot air pipe (12) extends into the pad printing mechanism (7). Air outlet openings (13) are provided on the hot air pipe (12) corresponding to each pad printing head (71). A switching valve (14) is provided on each air outlet opening (13).

8. The automated multi-color pad printing production line according to claim 1, wherein: A lifting adjustment mechanism (15) is provided on the frame (1). The bottom of the workbench (2) is connected to the top of the lifting adjustment mechanism (15).

9. The automated multi-color pad printing production line according to claim 1, wherein: The blanking mechanism (8) includes two fixed legs (81) which are respectively arranged on both sides of the rotary conveying mechanism (3) and fixedly connected to the workbench (2). A driving mechanism is installed at the top of the two fixed legs (81). The output end of the driving mechanism is connected with a pushing member (82). An inclined material guiding groove (83) is also penetrated through the fixed leg (81) located outside the workbench (2), and the inclined material guiding groove (83) extends in a direction away from the workbench (2).

10. The automated multi-color pad printing production line according to claim 9, characterized in that: The driving mechanism includes a front and rear driving cylinder (84), and the output end of the front and rear driving cylinder (84) is connected with the pushing member (82).

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