Fully automatic color printer

Abstract

The present application relates to the technical field of printing devices, and particularly relates to a full-automatic color printer. The full-automatic color printer includes a workbench, on which a printing platform is provided; a printing device, slidably mounted on the workbench; a feeding roller and a receiving roller, both mounted on the workbench and respectively arranged at two ends of the printing platform; a deviation rectifying device, mounted on the printing platform at the end where the feeding roller is located; a color coordinate sensor, mounted on the printing platform at the end where the receiving roller is located; wherein, at least one guiding roller is provided between the feeding roller and the deviation rectifying device, between the deviation rectifying device and the printing platform, and between the printing platform and the receiving roller. The present application improves the conveying accuracy and effectively improves the printing accuracy by combining deviation rectification to effectively improve the conveying accuracy.

Description

Technical Field

[0001] This application relates to the technical field of printing devices, and particularly to a full-automatic color printer. Background Art

[0002] The production of touch diaphragms requires processes such as color printing and screen printing in sequence, and then film laminating, forming, acceptance, etc. to form finished products. Among them, the color printing equipment used in related technologies is step-by-step. After color printing is completed, the film material is slit to form diaphragms, and then the formed diaphragms are sequentially sent to a CCD printing equipment for screen printing.

[0003] In the above-mentioned related technical solutions, due to the feeding accuracy of the color printing equipment and the influence of factors such as dust and static electricity, the printing accuracy is insufficient. In particular, there will be obvious defects such as faults and ghosting in color printing of gradient colors. Summary of the Invention

[0004] In order to improve the printing accuracy, this application provides a full-automatic color printer.

[0005] A full-automatic color printer provided by this application adopts the following technical solutions:

[0006] A full-automatic color printer includes:

[0007] A workbench, on which a printing platform is provided;

[0008] A printing device, slidably installed on the workbench;

[0009] A loading roller and a receiving roller, both installed on the workbench and respectively arranged at both ends of the printing platform;

[0010] A deviation rectifying device, installed at the end of the printing platform where the loading roller is located;

[0011] A color coordinate sensor, installed at the end of the printing platform where the receiving roller is located, for positioning the feeding length;

[0012] Among them, at least one guiding roller is provided between the loading roller and the deviation rectifying device, between the deviation rectifying device and the printing platform, and between the printing platform and the receiving roller.

[0013] Optionally: An electrostatic eliminator bar is provided between the deviation rectifying device and the printing platform.

[0014] Optionally: Deviation rectifying guiding rollers are provided at both ends of the printing platform. The deviation rectifying guiding roller includes a roller body, a mounting frame slidably installed along the axial direction of the roller body, an auxiliary deviation rectifying member slidably installed on the mounting frame, and an elastic member for providing a tendency force in a direction away from the mounting frame to the auxiliary deviation rectifying member. A limiting channel is formed between the two auxiliary deviation rectifying members on the same deviation rectifying guiding roller.

[0015] Optionally, the deviation rectifying guide roller further includes an adjusting member for adjusting the elastic force between the auxiliary deviation rectifying member and the adjusting member. During a single conveying process of the film material from start to stop, the adjusting member gradually increases the elastic force between the auxiliary deviation rectifying member and the mounting frame, and restores the elastic force before or at the start of the last conveying of the film material.

[0016] Optionally, the adjusting member is a cylinder, and two ends of the elastic member respectively abut against the piston rod of the cylinder and the auxiliary deviation rectifying member.

[0017] Optionally, the adjusting member is a gas spring connected to a gas source, and the gas spring is located on the moving path of the auxiliary deviation rectifying member.

[0018] Optionally, the adjusting member starts synchronously with the conveying of the film material.

[0019] Optionally, a displacement sensor for detecting whether the auxiliary deviation rectifying member moves is provided on the mounting frame. When the displacement sensor detects a displacement and the film material is in the conveying process, the adjusting member gradually increases the elastic force.

[0020] Optionally, a driving member for adjusting the position of the mounting frame on the roller body is provided on the workbench.

[0021] Optionally, the driving member is controlled to perform position calibration synchronously with the deviation rectifying device.

[0022] In summary, the present application has the following beneficial effects:

[0023] 1. Under the action of conveying accuracy and deviation rectifying synchronization, the positioning accuracy of the film material is improved, thereby effectively improving the printing accuracy and making the color more vivid.

[0024] 2. The surface of the passing film material is blown with high pressure by an electrostatic eliminator rod, so as to achieve dust removal control on the surface of the film material while eliminating static electricity, eliminate static electricity and dust interference, and improve the printing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of Embodiment 1;

[0026] Figure 2 is a main sectional view of Embodiment 1;

[0027] Figure 3 is a schematic structural diagram of the deviation rectifying guide roller in Embodiment 1;

[0028] Figure 4 is a partial sectional view of the deviation rectifying guide roller in Embodiment 1;

[0029] Figure 5It is a partial cross-sectional view of the deviation rectifying guide roller in Embodiment 2.

[0030] In the figure, 100 is the workbench; 110 is the printing platform; 120 is the maintenance ink cartridge; 130 is the guide roller; 200 is the printing device; 210 is the ultraviolet curing lamp; 300 is the loading roller; 400 is the winding roller; 500 is the deviation rectifying device; 600 is the static eliminator bar; 700 is the color coordinate sensor; 800 is the deviation rectifying guide roller; 810 is the roller body; 820 is the mounting bracket; 830 is the driving member; 840 is the adjusting member; 850 is the auxiliary deviation rectifying member; 851 is the slide bar; 860 is the elastic member. Detailed implementation mode

[0031] The following further elaborates on the present application in conjunction with the attached drawings.

[0032] Embodiment 1: A full-automatic color printer, as Figure 1 shown, includes a workbench 100, and a printing device 200, a loading roller 300, a winding roller 400, a static eliminator bar 600, a deviation rectifying device 500, and a color coordinate sensor 700 installed on the workbench 100.

[0033] A printing platform 110 is provided on the workbench 100. The printing device 200 is slidably installed on the workbench 100 and is controlled to slide above the printing platform 110 through a lead screw structure. Ultraviolet curing lamps 210 are installed on both sides of the printing device 200 and irradiate towards the printing platform 110. A maintenance ink cartridge 120 is provided on the workbench 100, and the maintenance ink cartridge 120 is located at one end of the printing platform 110.

[0034] As Figure 2 shown, the loading roller 300 and the winding roller 400 are respectively located at both ends of the printing platform 110 and are installed at a position lower than the printing platform 110. Among them, the winding roller 400 can be used as the driving roller to drive the film to move, or both the loading roller 300 and the winding roller 400 can be used as the driving rollers to move synchronously to realize film conveying.

[0035] The deviation rectifying device 500 and the static eliminator bar 600 are both located at the end of the printing platform 110 where the loading roller 300 is provided. Guide rollers 130 are provided between the loading roller 300 and the deviation rectifying device 500, between the deviation rectifying device 500 and the static eliminator bar 600, and between the static eliminator bar 600 and the printing platform 110. After the film is pulled out from the loading roller 300, it is guided by the guide roller 130, passes through the deviation rectifying device 500, passes under the maintenance ink cartridge 120 after being guided again, then passes through the position where the static eliminator bar 600 is located and is sent into the printing platform 110 after being guided again.

[0036] Among them, the static eliminator rod 600 can blow high-pressure air on the surface of the film material to achieve dust removal control on the surface of the film material while eliminating static electricity. Therefore, the static eliminator rod 600 should be set close to the printing platform 110 so that the film material enters the printing platform 110 immediately after passing through the static eliminator rod 600, avoiding re-contamination of dust caused by unnecessary conveying.

[0037] The color coordinate sensor 700 is located at one end of the printing platform 110 where the winding roller 400 is provided. The color coordinate sensor 700 is used to locate the feeding length to achieve precise control of the conveying length of the film material each time.

[0038] At least one guiding roller 130 is provided between the printing platform 110 and the winding roller 400.

[0039] The guiding rollers at both ends of the printing platform 110 are deviation-correcting guiding rollers 800, and the tops of the deviation-correcting guiding rollers 800 are lower than the end faces of the printing platform 110.

[0040] As Figure 3 and Figure 4 shown, each deviation-correcting guiding roller 800 includes a roller body 810, two mounting brackets 820, two driving members 830, two adjusting members 840, two auxiliary deviation-correcting members 850, and two elastic members 860. The roller body 810 is rotatably connected to the workbench 100, and the surface of the roller body 810 is made of a hard material. Among them, one mounting bracket 820, driving member 830, adjusting member 840, auxiliary deviation-correcting member 850, and elastic member 860 form a set of deviation-correcting structures, and the two sets of deviation-correcting structures are respectively arranged at both ends of the roller body 810.

[0041] The mounting bracket 820 is slidably mounted on the roller body 810. The driving member 830 is mounted on the workbench 100 and is used to drive the mounting bracket 820 to slide on the roller body 810, thereby adjusting the position of the mounting bracket 820. In this embodiment, the driving member 830 is a motor, which is connected to the mounting bracket 820 through a lead screw to achieve high-precision adjustment. And for the convenience of adjustment, the control of the driving member 830 can be associated with the position calibration of the deviation-correcting device 500 to achieve synchronous adjustment. In addition, it should be noted here that the driving member 830 is not necessarily an electric or pneumatic device, and a manual adjustment structure such as a screw or a threaded connection can also be used.

[0042] The auxiliary deviation-correcting member 850 is located on one side of the mounting bracket 820 facing the middle position of the roller body 810. It is annularly arranged and sleeved on the roller body 810. One side of the auxiliary deviation-correcting member 850 is slidably mounted on the mounting bracket 820 through a plurality of slide bars 851, so that it slides on the roller body 810 while sliding on the mounting bracket 820. A limiting channel is formed between the two auxiliary deviation-correcting members 850 on the same deviation-correcting guiding roller 800, and the width of the limiting channel is the same as the width of the film material.

[0043] The adjusting member 840 is a cylinder mounted on the mounting bracket 820. The elastic member 860 is used to provide a force trend in the direction away from the adjusting member 840 to the auxiliary deviation correcting member 850. In this embodiment, the elastic member 860 is a spring, which is located inside the mounting bracket 820, and its two ends respectively abut against the piston rod of the cylinder and the slide bar 851 on the auxiliary deviation correcting member 850. The elastic force between the auxiliary deviation correcting member 850 and the adjusting member 840 is adjusted by the adjusting member 840, and this adjustment will not change the maximum distance between the auxiliary deviation correcting member 850 and the mounting bracket 820.

[0044] Wherein, during a single conveying process of the film material from start to stop, the adjusting member 840 gradually increases the elastic force between the auxiliary deviation correcting member 850 and the adjusting member 840, and resets the elastic force before or at the start of the next conveying of the film material.

[0045] Working principle:

[0046] First, debug the equipment and adjust the sensing position of the deviation correcting device 500. During this process, the auxiliary deviation correcting member 850 is synchronously adjusted so that the width of the formed limiting channel is the same as the width of the film material. Then start the conveying of the film material. During the conveying process, when the film material between the two deviation correcting guide rollers 800 is offset, an external force will be applied to one side of the auxiliary deviation correcting member 850 to compress the elastic member 860 and cause it to move. And during the conveying process, the elastic force can correct and reset the film material to reduce the offset amplitude.

[0047] At the same time, during the conveying process, the adjusting member 840 starts to adjust the initial trend force of the elastic member 860, so that the elastic force that the film material needs to overcome to be offset gradually increases, making it more and more difficult for the film material to be offset during the conveying process, and basically no offset occurs until it stops. And because the deviation correction is carried out slowly and controlled throughout the process, the film material will not be damaged due to the force generated by a sudden large offset during the conveying process.

[0048] Under the action of the two deviation correcting guide rollers 800, the overall offset amplitude of the film material is reduced, so that the deviation correction adjustment required by the deviation correcting device 500 is also smaller. Coupled with the conveying of the film material, the two deviation correcting guide rollers 800 can continuously reduce the possible offset amplitude, and can effectively avoid the situation where the conveying of the film material stops while the deviation correction is not completed.

[0049] Embodiment 2: As Figure 5 shown, the difference from Embodiment 1 is that the elastic member 860 is sleeved on the slide bar 851, and the two ends of the elastic member 860 respectively abut against the auxiliary deviation correcting member 850 and the mounting bracket 820. The adjusting member 840 is a gas spring connected to a gas source. The gas spring is mounted on the mounting bracket 820 and is located on the moving path of the auxiliary deviation correcting member 850. In this embodiment, the gas spring can abut against the slide bar 851 on the auxiliary deviation correcting member 850.

[0050] Embodiment 3: The difference from Embodiment 1 or Embodiment 2 is that a displacement sensor for detecting whether the auxiliary deviation correction member 850 moves is provided on the adjusting member 840. Wherein, when the displacement sensor detects that the auxiliary deviation correction member 850 has a displacement and the film material is still in the conveying process, the adjusting member 840 starts to gradually increase the elastic force. During the conveying process of the film material, the adjusting member 840 can only maintain the elastic force or continuously increase the elastic force until the film material stops conveying, and then the adjusting member 840 resets.

[0051] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A fully automatic color printer, characterized in that, Comprising: A workbench (100) provided with a printing platform (110) thereon; A printing device (200) slidably mounted on the workbench (100); A loading roller (300) and a winding roller (400), both mounted on the workbench (100) and respectively disposed at both ends of the printing platform (110); A deviation rectifying device (500) mounted at the end of the printing platform (110) where the loading roller (300) is located; A color coordinate sensor (700) mounted at the end of the printing platform (110) where the winding roller (400) is located, for positioning the feeding length; Wherein, at least one guiding roller (130) is provided between the loading roller (300) and the deviation rectifying device (500), between the deviation rectifying device (500) and the printing platform (110), and between the printing platform (110) and the winding roller (400); Both ends of the printing platform (110) are provided with deviation rectifying guiding rollers (800). The deviation rectifying guiding roller (800) includes a roller body (810), a mounting frame (820) slidably mounted along the axial direction of the roller body (810), an auxiliary deviation rectifying member (850) slidably mounted on the mounting frame (820), and an elastic member (860) for providing a force trend in a direction away from the mounting frame (820) to the auxiliary deviation rectifying member (850). A limiting channel is formed between the two auxiliary deviation rectifying members (850) on the same deviation rectifying guiding roller (800); The deviation rectifying guiding roller (800) further includes an adjusting member (840) for adjusting the elastic force between the auxiliary deviation rectifying member (850) and the mounting frame (820). During a single conveying process of the film material from start to stop, the adjusting member (840) gradually increases the elastic force between the auxiliary deviation rectifying member (850) and the mounting frame (820), and resets the elastic force before or at the start of the next conveying of the film material.

2. The full-automatic color printer according to claim 1, characterized in that: An electrostatic eliminator bar (600) is provided between the deviation rectifying device (500) and the printing platform (110).

3. The full-automatic color printer according to claim 1, characterized in that: The adjusting member (840) is a cylinder, and both ends of the elastic member (860) are respectively abutted against the piston rod of the cylinder and the auxiliary deviation rectifying member (850).

4. The full-automatic color printer according to claim 1, characterized in that: The adjusting member (840) is a gas spring connected to a gas source, and the gas spring is located on the moving path of the auxiliary deviation rectifying member (850).

5. The full-automatic color printer according to claim 1 or 3 or 4, characterized in that: The adjusting member (840) starts synchronously with the conveying of the film material.

6. The full-automatic color printer according to claim 1 or 3 or 4, characterized in that: A displacement sensor for detecting whether the auxiliary deviation rectifying member (850) moves is provided on the mounting frame (820). When the displacement sensor detects a displacement and the film material is in the conveying process, the adjusting member (840) gradually increases the elastic force.

7. The full-automatic color printer according to claim 1 or 3 or 4, characterized in that: A driving member (830) for adjusting the position of the mounting frame (820) on the roller body (810) is provided on the workbench (100).

8. The fully automatic color printer according to claim 7, characterized in that: The driving member (830) is controlled by the deviation rectifying device (500) to perform position calibration synchronously.

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