Coating and printing machine for green can making

Abstract

The utility model relates to the technical field of green can making, and discloses a coating and printing machine for green can making, which comprises a coating and printing plate, a translation mechanism, a coating and printing head, a roller assembly, a feeding and discharging mechanism and a rack, the rack is matched with the translation mechanism, the feeding and discharging mechanism and the coating and printing machine for installation, and the rack comprises a bottom plate and a side box; the coating and printing head is located above the coating and printing plate and matched with the coating and printing plate to be used for coating and printing marks on the surface of the rolling can body. The translation mechanism is used for pushing the coating and printing plate to translate so as to enable the coating and printing marks on the coating and printing plate to be continuously aligned with the rolling tank body; the roller assembly comprises a riding wheel set and a driving wheel, the riding wheel set is located below the tank body to support the tank body, and the driving wheel is located above the tank body, driven by the driving motor to rotate and matched with the riding wheel set to drive the tank body to roll; the feeding and discharging mechanism is used for driving the riding wheel set and the tank to enter the coating and printing station or exit from the coating and printing station to be transferred to the feeding and discharging station, automatic coating and printing can be achieved, and labor force is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of green can manufacturing technology, specifically relating to a coating and printing machine for green can manufacturing. Background Technology

[0002] In the green can manufacturing industry, markings are typically applied to the surface of cans to improve their recognizability and aesthetics. As market demands for higher quality and efficiency in can marking increase, and as environmental awareness grows, the research and application of marking machines for green can manufacturing are becoming increasingly important.

[0003] In existing technologies, the installation and fixing methods for printing plates are relatively complex. Some printing machines use welded or integrated printing plate mounting structures, which makes plate replacement difficult and may even require specialized technicians using specific tools for disassembly and installation. This is not only time-consuming but may also cause some damage to the equipment. Traditional printing machines largely rely on manual operation for feeding and unloading, which is labor-intensive, inefficient, and prone to inaccurate tank placement, affecting printing quality.

[0004] In view of this, we propose a green coating machine for can making to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the technical problems of inconvenient disassembly and replacement of printing plates and low degree of automation in the green can-making and coating process described in the prior art.

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

[0007] A green can-making coating machine includes:

[0008] The printing plate is inserted into the slots set on the two support plates on both sides, and the printing plate is locked and fixed in the slots by the locking bolt A connected to the thread on the support plate.

[0009] Translation mechanism, used to push the printing plate to translate so that the printing marks on the printing plate are continuously aligned with the rolling tank;

[0010] The printing head is located above the printing plate and works in conjunction with the printing plate to print markings on the surface of a rolling can.

[0011] The roller assembly includes a support roller group and a drive wheel. The support roller group is located below the tank to support the tank, and the drive wheel is located above the tank and is driven to rotate by a drive motor and works with the support roller group to drive the tank to roll.

[0012] The feeding and discharging mechanism is used to drive the roller assembly and the tank into or out of the coating station and transfer them to the loading and unloading station.

[0013] Preferably, the system also includes a frame for mounting the translation mechanism, the feeding and discharging mechanism, and the printing machine, the frame comprising a base plate and side boxes.

[0014] Preferably, the translation mechanism includes an electric push rod fixedly installed on the side box, a translation frame fixedly installed on the end of the piston rod of the electric push rod, a guide rail A fixedly installed on the side box and slidingly guided in cooperation with the guide block A on the translation frame, two lifting rodless cylinders installed at both ends of the front side of the translation frame, and two sets of C-shaped frames fixed on the lifting slides of the lifting rodless cylinders. The locking bolts B threaded on the C-shaped frame lock the support plate to the C-shaped frame.

[0015] The translation frame, the C-shaped frame, and the printing plate are moved horizontally by an electric push rod. The lifting rodless cylinder drives the C-shaped frame and the printing plate to rise or fall, so that the printing plate moves closer to or away from the tank.

[0016] Preferably, the printing head is mounted on the printing base, and a U-shaped groove is provided on the top frame of the side box. A mounting frame is installed in the U-shaped groove, and a lifting cylinder A is fixedly installed at the bottom of the mounting frame. The piston rod end of the lifting cylinder A is fixedly connected to the printing base.

[0017] The lifting cylinder A moves the printing head up or down to move it closer to or further away from the printing plate.

[0018] Preferably, the roller assembly includes a mobile platform, four supports mounted on the mobile platform, four bearing seats respectively mounted on the top of the four supports, a rotating shaft rotatably connected at both ends to two bearing seats symmetrically arranged front and back, and two rollers fixed on the rotating shaft and symmetrically arranged front and back.

[0019] Preferably, the feeding and discharging mechanism includes two guide rails B fixed to the top of the base plate and cooperating with the slide groove on the moving platform for guiding and sliding, a servo motor fixed to the top of the moving platform, a gear fixedly connected to the end of the piston rod of the servo motor and located below the moving platform, and a rack fixed to one of the guide rails B and meshing with the gear.

[0020] The servo motor drives the gear to rotate, and the gear meshes with the rack to guide the moving platform to translate along the guide rail B.

[0021] Preferably, the drive wheel is mounted on the inverted U-shaped frame, the drive motor is mounted on the inverted U-shaped frame, the top of the top frame is equipped with a connecting frame located above the mounting frame, and the bottom of the connecting frame is fixedly equipped with a lifting cylinder B, the end of the piston rod of the lifting cylinder is fixedly connected to the inverted U-shaped frame.

[0022] The lifting cylinder B moves the drive wheel to contact the tank surface or move it away from the tank. When the drive wheel contacts the tank surface, the drive motor drives the drive wheel to rotate, which, together with the support roller, enables the tank to roll.

[0023] Preferably, the base plate is equipped with buffers on both sides to limit and cushion the movement of the platform.

[0024] Compared with the prior art, the technical effects and advantages of this utility model are:

[0025] This green can-making coating machine is based on the coordinated operation of its various mechanisms. In the feeding and discharging stage, the servo motor of the feeding and discharging mechanism drives the gears to rotate, which, through meshing with the rack, causes the moving platform to translate along guide rail B, realizing the loading and unloading of cans. In the coating preparation stage, lifting cylinder B drives the drive wheel to contact the can, the lifting rodless cylinder moves the coating plate closer to the can, and lifting cylinder A moves the coating head closer to the coating plate. During coating, the drive motor drives the drive wheel, which, in conjunction with the support roller, causes the can to roll. The electric push rod pushes the coating plate to translate, ensuring the coating markings are continuously aligned with the can, and the coating head completes the coating operation.

[0026] The printing plate is fixed by a support plate and locking bolt A, allowing for easy replacement and accurate positioning, ensuring printing quality. The printing head is controlled by a lifting cylinder A, enabling precise height adjustment, avoiding unnecessary friction, and enhancing equipment versatility. The translation mechanism allows the printing plate to move smoothly and rise flexibly, improving printing efficiency and quality. The feeding and discharging mechanism achieves automated operation, improving production efficiency and positioning accuracy. The roller assembly and drive wheels work together to ensure smooth tank rolling and uniform printing. The buffer reduces equipment vibration and wear, ensuring equipment lifespan and personnel safety. Attached Figure Description

[0027] Figure 1 This is a first-view diagram of the present invention;

[0028] Figure 2 This is a second-view diagram of the present invention;

[0029] Figure 3 This is a first-view view of the roller assembly and the feeding / discharging mechanism of this utility model;

[0030] Figure 4 This is a second-view view of the roller assembly and the feeding / discharging mechanism of this utility model;

[0031] Figure 5 This is a schematic diagram of the printing plate and translation mechanism of this utility model;

[0032] Figure 6 This is a schematic diagram of the coating head and drive wheel of this utility model.

[0033] In the picture:

[0034] 1. Printing plate; 11. Support plate; 12. Slot; 13. Locking bolt A;

[0035] 2. Translation mechanism; 21. Electric push rod; 22. Translation frame; 23. Guide block A; 24. Guide rail A; 25. Lifting rodless cylinder; 26. Lifting slide; 27. C-shaped frame; 28. Locking bolt B;

[0036] 3. Printing head; 31. Printing base; 32. Top frame; 33. U-shaped groove; 34. Mounting bracket; 35. Lifting cylinder A;

[0037] 4. Roller assembly; 41. Support roller assembly; 4101. Moving platform; 4102. Support; 4103. Bearing housing; 4104. Rotating shaft; 4105. Support roller; 4106. Slide groove; 42. Drive wheel; 4201. Drive motor; 4202. Inverted U-shaped frame; 4203. Connecting frame; 4204. Lifting cylinder B;

[0038] 5. Feeding / Discharging Mechanism; 51. Guide Rail B; 52. Servo Motor; 53. Gear; 54. Rack;

[0039] 6. Tank body;

[0040] 7. Frame; 71. Base plate; 72. Side box; 73. Buffer. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] The following combination Figures 1 to 6 This application will be described in further detail.

[0043] This application discloses a green can-making coating machine, including a coating plate 1, a translation mechanism 2, a coating head 3, a roller assembly 4, a feeding and discharging mechanism 5, and a frame 7. The frame 7 is installed in conjunction with the translation mechanism 2, the feeding and discharging mechanism 5, and the coating machine. The frame 7 includes a base plate 71 and a side box 72. The coating head 3 is located above the coating plate 1 and works with the coating plate 1 to coat the surface of a rolling can 6 with markings. The translation mechanism 2 is used to push the coating plate 1 to translate so that the markings on the coating plate 1 are continuously aligned with the rolling can 6. The roller assembly 4 includes a support roller group 41 and a drive wheel 42. The support roller group 41 is located below the can 6 to support the can 6, and the drive wheel 42 is located above the can 6 and is driven to rotate by a drive motor 4201 and works with the support roller group 41 to drive the can 6 to roll. The feeding and discharging mechanism 5 is used to drive the support roller group 41 and the can 6 into or out of the coating station and transfer them to the loading and unloading station.

[0044] The two sides of the printing plate 1 are inserted into the slots 12 provided on the two support plates 11, and the printing plate 1 is locked and fixed in the slots 12 by the locking bolts A13 threaded on the support plates 11.

[0045] The printing plate 1 is inserted into the slots 12 of the support plate 11 on both sides and locked in place with the locking bolts A13. When it is necessary to replace the printing plate 1 with a different printing mark, simply loosen the locking bolts A13 to easily remove the old printing plate 1, insert the new printing plate 1, and then tighten the locking bolts A13 again. The operation is simple and quick, which can improve production efficiency.

[0046] Several locking bolts A13 are arranged at equal intervals on the support plate 11 to facilitate the installation and positioning of different printing plates 1. The setting of locking bolts A13 can ensure that the printing plate 1 will not be displaced during the printing process, thus ensuring the accuracy of the printing position and the stability of the printing quality.

[0047] The printing head 3 is installed on the printing base 31. A U-shaped groove 33 is provided on the top frame 32 at the top of the side box 72. A mounting frame 34 is installed in the U-shaped groove 33. A lifting cylinder A35 is fixedly installed at the bottom of the mounting frame 34. The piston rod end of the lifting cylinder A35 is fixedly connected to the printing base 31.

[0048] The lifting cylinder A35 drives the printing head 3 to move up or down to get closer to or away from the printing plate 1.

[0049] The movement of the lifting cylinder A35 allows for precise control of the printing head 3's proximity to or movement away from the printing plate 1. Before printing, the printing head 3 accurately contacts the printing plate 1 to acquire the printing ink; after printing, it rises promptly to avoid unnecessary friction with the printing plate 1 or the container 6, ensuring effective printing and extending the equipment's lifespan. For different container sizes or printing process requirements, the stroke of the lifting cylinder A35 can be adjusted to position the printing head 3 at a suitable height, enhancing the equipment's versatility and adaptability.

[0050] The translation mechanism 2 includes an electric push rod 21 fixedly installed on the side box 72, a translation frame 22 fixedly installed on the piston rod end of the electric push rod 21, a guide rail A24 fixedly installed on the side box 72 and slidingly guided in cooperation with the guide block A23 on the translation frame 22, two lifting rodless cylinders 25 installed at both ends of the front side of the translation frame 22, and two sets of C-shaped frames 27 fixed on the lifting slides 26 of the lifting rodless cylinders 25. The locking bolts B28 threaded on the C-shaped frame 27 lock the support plate 11 to the C-shaped frame 27.

[0051] The electric push rod 21 pushes the translation frame 22, the C-shaped frame 27 and the printing plate 1 to translate. The lifting rodless cylinder 25 drives the C-shaped frame 27 and the printing plate 1 to rise or fall, so that the printing plate 1 moves closer to or further away from the tank 6.

[0052] The electric push rod 21 pushes the translation frame 22, the U-shaped frame 27 and the printing plate 1 to translate, so that the printing marks on the printing plate 1 can be continuously aligned with the rolling can 6, thereby achieving continuous printing on the surface of the can 6 and improving the printing efficiency and the consistency of the printing effect.

[0053] The lifting rodless cylinder 25 can drive the frame 27 and the printing plate 1 to rise and fall, so that the printing plate 1 can move closer to or further away from the can 6 according to the height of the can 6 and the printing requirements, ensuring that the printing plate 1 maintains a suitable distance from the surface of the can 6 and improving the printing quality.

[0054] The feeding and discharging mechanism 5 includes two guide rails B51 fixed to the top of the base plate 71 and cooperating with the slide groove 4106 on the moving platform 4101 for guiding and sliding, a servo motor 52 fixed to the top of the moving platform 4101, a gear 53 fixedly connected to the end of the piston rod of the servo motor 52 and located below the moving platform 4101, and a rack 54 fixed to one of the guide rails B51 and meshing with the gear 53;

[0055] The servo motor 52 drives the gear 53 to rotate, and the gear 53 meshes with the rack 54 to guide the moving platform 4101 to move along the guide rail B51.

[0056] The servo motor 52 drives the gear 53 to rotate, which meshes with the rack 54 to guide the moving platform 4101 along the guide rail B51. This enables the roller assembly 41 and the tank 6 to automatically enter and exit the coating station and transfer to the loading and unloading station, reducing manual operation and improving production efficiency and automation. The guide rail B51 cooperates with the slide groove 4106 on the moving platform 4101 to guide the sliding, ensuring the stability and accuracy of the moving platform 4101 during the translation process, and ensuring that the tank 6 accurately reaches the coating station and the loading and unloading station.

[0057] The roller assembly 41 includes a mobile platform 4101, four supports 4102 mounted on the mobile platform 4101, four bearing seats 4103 respectively mounted on the top of the four supports 4102, a rotating shaft 4104 rotatably connected at both ends to two bearing seats 4103 arranged symmetrically in front and behind, and two rollers 4105 fixed on the rotating shaft 4104 and arranged symmetrically in front and behind.

[0058] The drive wheel 42 is rotatably mounted on the inverted U-shaped frame 4202. The drive motor 4201 is mounted and fixed on the inverted U-shaped frame 4202. The top of the top frame 32 is equipped with a connecting frame 4203 located above the mounting frame 34. The bottom of the connecting frame 4203 is fixedly equipped with a lifting cylinder B4204. The end of the piston rod of the lifting cylinder is fixedly connected to the inverted U-shaped frame 4202.

[0059] The lifting cylinder B4204 drives the drive wheel 42 to contact the surface of the tank 6 or move away from the tank 6. When the drive wheel 42 contacts the surface of the tank 6, the drive motor 4201 drives the drive wheel 42 to rotate, which, together with the support roller 4105, enables the tank 6 to roll.

[0060] The support roller assembly 41 is located below the tank body 6 to support it, while the drive wheel 42 is located above the tank body 6. The drive motor 4201 drives the drive wheel 42 to rotate, which, in conjunction with the support roller 4105, enables the tank body 6 to roll. This design ensures that the tank body 6 rolls smoothly during the coating process, resulting in more uniform and accurate coating. The lifting cylinder B4204 moves the drive wheel 42 to contact or move away from the surface of the tank body 6, allowing for flexible adjustment based on the height of the tank body 6 and coating requirements, accommodating the coating needs of tanks of different sizes.

[0061] The base plate 71 is equipped with buffers 73 on both sides to limit and buffer the movement of the moving platform 4101. The buffers 73 work with the moving platform 4101 to limit and buffer the movement. When the moving platform 4101 reaches its limit position during feeding or discharging, the buffers 73 absorb the impact force, reducing equipment vibration and wear, and extending the equipment's service life. This also prevents the moving platform 4101 from colliding with other components due to inertia, reducing the risk of equipment damage and ensuring operator safety.

[0062] The entire coating process of this green can-making coating machine is as follows:

[0063] Feeding: The servo motor 52 of the feeding and discharging mechanism 5 is activated, driving the gear 53 to rotate. The gear 53 meshes with the rack 54, causing the moving platform 4101 to move along the guide rail B51 and send the roller assembly 41 and the can 6 placed on the roller assembly 41 into the printing station.

[0064] Positioning and preparing the tank 6 for printing: Lifting cylinder B4204 is activated, driving the drive wheel 42 to descend and contact the surface of the tank 6; Lifting rodless cylinder 25 is activated, driving the frame 27 and the printing plate 1 to descend and approach the tank 6; Lifting cylinder A35 is activated, driving the printing head 3 to descend and approach the printing plate 1.

[0065] The coating process: the drive motor 4201 drives the drive wheel 42 to rotate, which in turn makes the can 6 roll with the support roller 4105; the electric push rod 21 pushes the translation frame 22, the shaped frame 27 and the coating plate 1 to move, so that the coating marks on the coating plate 1 are continuously aligned with the rolling can 6, and the coating head 3 coats the surface of the rolling can 6 with the marks.

[0066] Material unloading: After the coating is completed, the lifting cylinder B4204 moves the drive wheel 42 away from the tank 6; the lifting cylinder A35 moves the coating head 3 away from the coating plate 1; the lifting rodless cylinder 25 moves the coating plate 1 away from the tank 6; the servo motor 52 of the feeding and discharging mechanism 5 moves in the opposite direction, moving the support roller group 41 and the coated tank 6 out of the coating station and transferring them to the loading and unloading station.

[0067] Compared to existing technologies, this coating machine offers significant advantages. Regarding the replacement of the coating plate 1, existing technologies are complex, while this machine allows for simple and quick replacement, greatly improving production efficiency. In terms of coating accuracy, existing technologies are prone to deviations in coating position and uneven coating, while this machine, through a precise control mechanism, ensures accurate coating position and uniform coating effect. Regarding equipment versatility, existing technologies have poor adaptability to different can sizes 6, while this machine can flexibly adjust the height of the coating head 3, coating plate 1, and drive wheels 42 to adapt to various can sizes 6. In terms of automation, existing technologies rely heavily on manual labor, while this machine achieves automated feeding and unloading, reducing manual operation and improving production efficiency.

[0068] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 green canmaker's coater characterized by, It includes: The printing plate (1) is inserted into the slot (12) provided on the two supporting plates (11) on both sides, and the printing plate (1) is locked and fixed in the slot (12) by the locking bolt A (13) threaded on the supporting plate (11); The translation mechanism (2) is used to push the printing plate (1) to translate to make the printing mark on the printing plate (1) continuously aligned with the rolling can body (6); The printing head (3) is located above the printing plate (1) and cooperates with the printing plate (1) to print the surface of the rolling can body (6) with the printing mark; The roller assembly (4) includes a supporting roller group (41) and a driving wheel (42), the supporting roller group (41) is located below the can body (6) to support the can body (6), the driving wheel (42) is located above the can body (6) and is driven to rotate by the driving motor (4201) and cooperates with the supporting roller group (41) to drive the can body (6) to roll; The feeding and discharging mechanism (5) is used to drive the supporting roller group (41) and the can body (6) to enter or exit the printing position and shift to the feeding and discharging position.

2. A green can decorator according to claim 1, characterized in that: It also includes a rack (7) cooperated with the installation of the translation mechanism (2), the feeding and discharging mechanism (5) and the printing machine, the rack (7) includes a bottom plate (71) and a side box (72).

3. A green can decorator according to claim 2, characterized in that: The translation mechanism (2) includes an electric push rod (21) fixedly installed on the side box (72), a translation frame (22) fixed on the piston rod end of the electric push rod (21), a guide rail A (24) fixed on the side box (72) and cooperated with the guide block A (23) on the translation frame (22) to slide and guide, two lifting type rodless air cylinders (25) installed on the front side of the two ends of the translation frame (22), and two groups of H-shaped frames (27) fixed on the lifting sliding table (26) of the lifting type rodless air cylinder (25), the locking bolt B (28) threaded on the H-shaped frame (27) locks and fixes the supporting plate (11) on the H-shaped frame (27); The translation frame (22), the H-shaped frame (27) and the printing plate (1) are translated by the electric push rod (21), the H-shaped frame (27) and the printing plate (1) are lifted by the action of the lifting type rodless air cylinder (25), so that the printing plate (1) is close to or away from the can body (6).

4. A green can decorator according to claim 2, characterized in that: The printing head (3) is installed on the printing seat (31), a U-shaped groove (33) is formed on the top frame (32) of the top of the side box (72), an installation frame (34) is installed in the U-shaped groove (33), a lifting cylinder A (35) is fixedly arranged at the bottom of the installation frame (34), and the piston rod end of the lifting cylinder A (35) is fixedly connected with the printing seat (31); The printing head (3) is lifted by the action of the lifting cylinder A (35) to be close to or away from the printing plate (1).

5. A green can decorator according to claim 4, characterized in that: The supporting roller group (41) includes a moving platform (4101), four supports (4102) installed on the moving platform (4101), four bearing seats (4103) respectively installed on the top of the four supports (4102), a rotating shaft (4104) rotatably connected at the two ends of the two bearing seats (4103) symmetrically arranged in front and back, and two supporting rollers (4105) fixed on the rotating shaft (4104) and symmetrically arranged in front and back.

6. A green can decorator according to claim 5, characterized in that: The inlet and outlet mechanism (5) comprises two guide rails B (51) fixed on the top of the bottom plate (71) and guided to slide with the sliding groove (4106) on the moving platform (4101), a servo motor (52) fixed on the top of the moving platform (4101), a gear (53) fixedly connected with the end of the piston rod of the servo motor (52) and located below the moving platform (4101), and a rack (54) fixed on one of the guide rails B (51) and engaged with the gear (53); The servo motor (52) drives the gear (53) to rotate, and the gear (53) is engaged with the rack (54) to drive the moving platform (4101) to translate along the guide rail B (51).

7. A green can decorator according to claim 6, characterized in that: The driving wheel (42) is rotatably arranged on the inverted U-shaped frame (4202), the driving motor (4201) is fixedly arranged on the inverted U-shaped frame (4202), the top of the top frame (32) is provided with a connecting frame (4203) located above the mounting frame (34), the bottom of the connecting frame (4203) is fixedly provided with a lifting cylinder B (4204), and the end of the piston rod of the lifting cylinder B (4204) is fixedly connected with the inverted U-shaped frame (4202). The driving wheel (42) is driven by the lifting cylinder B (4204) to contact or move away from the surface of the tank body (6); when the driving wheel (42) contacts the surface of the tank body (6), the driving wheel (42) is driven to rotate by the driving motor (4201), and the tank body (6) is rolled by the cooperation of the driving wheel (42) and the supporting wheel (4105).

8. A green can decorator according to claim 5 wherein: The bottom plate (71) is provided with a buffer (73) for limiting and buffering the moving platform (4101).

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