A silicone multicolor printing machine
By designing a closed-loop circulation system and an independent printing mechanism, the silicone multicolor printing machine solves the problems of low automation and poor color consistency, achieving efficient and accurate multicolor overprinting and continuous production, thus improving printing quality and equipment utilization.
Patent Information
- Application Number
- CN202611295788.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-25
- Publication Date
- 2026-11-06
AI Technical Summary
Existing silicone multicolor screen printing equipment has low automation, high labor costs, poor registration accuracy, poor color consistency, large equipment footprint, and is prone to problems such as smudging, sticking, and color fading during the printing process.
Design a silicone multicolor printing machine that uses upper and lower conveyor tracks and lifting devices to form a closed-loop circulation circuit, four independent printing mechanisms and curing and cooling mechanisms, each printing mechanism is physically isolated and independently controlled, equipped with a sealed ink storage, an independent ink scraping system and an infrared drying and circulating air cooling device to achieve continuous automated production.
It improves automation and product yield, ensures accurate registration, avoids ink cross-contamination, reduces equipment footprint, improves print fastness and surface quality, and ensures color consistency.
Smart Images
Figure CN123040468A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of screen printing equipment for silicone products, specifically to a multi-color silicone printing machine. Background Technology
[0002] Existing silicone multicolor screen printing equipment has the following main defects: multicolor printing adopts a single station for sequential color changing, and manual replacement of the screen and ink is required for each color printed. The process is fragmented, the degree of automation is low, the labor cost is high, and the registration accuracy is poor. The printing, drying and cooling processes require manual transfer between different equipment. Multiple equipment occupy a large area, the conveyor can not be recycled and reused, and there is no immediate curing and cooling cycle after each printing. The superposition of multiple layers of ink is prone to smudging, sticking and fading, resulting in a low yield rate.
[0003] In addition, traditional multicolor printing presses share a single ink supply, lifting, and scraping system, which makes it easy for different inks to cross-contaminate each other and result in poor color consistency. Summary of the Invention
[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a silicone multicolor printing machine that can effectively solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a silicone multicolor printing machine, comprising: a frame, a conveying mechanism, four sets of independent printing mechanisms, a curing and cooling mechanism, and control components. The conveying mechanism includes an upper conveying track and a lower conveying track symmetrically distributed inside the frame, and a conveying trolley that moves on the conveying track. The upper and lower conveying tracks are respectively provided with a lowering device and a lifting device for the conveying trolley to move on the upper and lower conveying tracks. The upper and lower conveying tracks, together with the lowering and lifting devices, form a reciprocating loop of the conveying trolley. Four independent printing units are fixedly connected to the top of the machine frame and are evenly distributed above the upper conveyor track. Each printing unit is physically isolated and independently controlled, and each corresponds to different color ink printing operations. The curing and cooling mechanism includes a drying device and a cooling device fixedly connected to the middle of the frame. The drying device and the cooling device are located above the lower conveying track and are distributed sequentially along the conveying direction of the lower conveying track. The control components are electrically connected to the conveying mechanism, printing mechanism, and curing and cooling mechanism, respectively.
[0006] Furthermore, each printing mechanism includes a sealed ink storage and supply assembly, a vertical lifting drive assembly, a screen clamping assembly, a screen printing stencil, a doctor blade reciprocating drive assembly, and an ink recovery and diversion assembly.
[0007] Furthermore, the sealed ink storage and supply assembly includes a sealed ink storage tank, a stirring unit, a metering ink supply pump, a one-way anti-backflow valve, an ink level sensor, and a sealed dustproof cover. The stirring unit is located inside the sealed ink storage tank, and the metering ink supply pump connects the sealed ink storage tank to the screen printing stencil.
[0008] Furthermore, the vertical lifting drive component is an independent servo electric cylinder. There are two servo electric cylinders, and their output ends are respectively fixedly connected to the doctor blade and the ink return blade.
[0009] Furthermore, the ink recovery and diversion assembly includes an inclined diversion channel and a detachable ink collection and recovery box. The ink collected in the ink collection and recovery box can flow back to the corresponding sealed ink storage and supply assembly. The stencil quick clamping assembly includes symmetrically arranged stencil support, clamping blocks, positioning pins and locking knobs.
[0010] Furthermore, the ink scraping reciprocating drive assembly includes a double guide rail, a servo motor, a transmission belt, and a reciprocating slide table. The reciprocating slide table is slidably connected to the top of the double guide rail, and the reciprocating slide table is connected to the servo motor via the transmission belt.
[0011] Furthermore, the top of the conveying trolley is equipped with a positioning fixture for fixing the silicone substrate.
[0012] Furthermore, the drying device is an infrared constant temperature drying module with an adjustable temperature range of 50-120℃, and the cooling device is a circulating air-cooled cooling module.
[0013] Furthermore, both the lowering device and the lifting device are servo-driven lifting and transfer platforms.
[0014] Furthermore, the control component is a PLC controller with a touch screen display, which can independently set the stirring speed, ink supply, lifting stroke, scraping speed, and scraping pressure of the four printing mechanisms, and synchronously regulate the conveying, drying, and cooling operating parameters.
[0015] The technical solution provided by this invention has the following advantages compared with the known prior art: 1. A closed-loop reciprocating circuit is formed by the upper and lower conveyor tracks, the lowering device, and the lifting device, allowing the conveyor trolley to continuously carry silicone substrates and sequentially pass through four independent printing mechanisms for multi-color overprinting. This eliminates the need for manual material transfer between different devices, changing the inefficient traditional single-station color and plate changing mode. At the same time, each printing mechanism is independently controlled and evenly distributed, working in conjunction with the positioning fixtures of the conveyor trolley to ensure accurate and stable overprinting of each color pattern, significantly improving the degree of automation and product yield. 2. Each of the four printing units is equipped with an independent sealed ink storage and supply component, lifting drive, ink scraping and ink return system, and ink recovery and diversion system. They are completely physically isolated from each other and operate independently. Each unit can be set with parameters such as stirring speed, ink supply, scraping speed and pressure. This effectively eliminates the problem of color mixing and contamination between different colors of ink that is easy to occur in traditional shared ink supply and scraping systems. It ensures that the colors of each print are pure and the boundaries are clear, and the color consistency is excellent during long-term mass production. 3. The curing and cooling mechanism is located in the middle of the frame and above the lower conveyor track. This allows the ink to be quickly dried by an infrared constant temperature drying device on its way back to the lower layer after printing, and then cooled by a circulating air cooling device. This achieves integrated continuous operation of "printing-drying-cooling". After each color is printed, it is cured and cooled immediately, avoiding problems such as smudging, sticking or color fading when multiple layers of ink are overprinted. This not only improves the printing fastness and surface quality, but also greatly reduces the equipment footprint and lowers the workshop space requirements. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the frame of the present invention; Figure 3 This is a schematic diagram of the conveying mechanism structure of the present invention; Figure 4 This is a schematic diagram of the printing mechanism structure of the present invention; Figure 5 This is a schematic diagram of the vertical lifting drive component structure of the present invention; Figure 6 This is a schematic diagram of the curing and cooling mechanism of the present invention.
[0018] The labels in the diagram represent: 1. Frame; 2. Conveying mechanism; 21. Upper conveying track; 22. Lower conveying track; 23. Conveying trolley; 24. Lowering device; 25. Lifting device; 3. Printing mechanism; 31. Vertical lifting drive assembly; 32. Screen printing quick clamping assembly; 33. Screen printing stencil; 34. Doctor blade reciprocating drive assembly; 35. Doctor blade; 36. Ink return blade; 4. Curing and cooling mechanism; 41. Drying device; 42. Cooling device; 5. Control components. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0020] The present invention will be further described below with reference to embodiments. Example 1:
[0021] Reference Figure 1-6 This invention discloses a silicone multicolor printing machine in its first embodiment, comprising: a frame 1, a conveying mechanism 2, four independent printing mechanisms 3, a curing and cooling mechanism 4, and a control component 5. The conveying mechanism 2 includes an upper conveying track 21 and a lower conveying track 22 symmetrically distributed inside the frame 1, and a conveying trolley 23 moving on the conveying tracks. At both ends of the upper conveying track 21 and the lower conveying track 22, a lowering device 24 and a lifting device 25 are respectively provided for the transfer of the conveying trolley 23 between the upper conveying track 21 and the lower conveying track 22. The upper conveying track 21, the lower conveying track 22, the lowering device 24, and the lifting device 25 together form a single unit. The conveyor trolley 23 forms a reciprocating loop. Four independent printing mechanisms 3 are fixedly connected to the top of the machine frame 1. The four independent printing mechanisms 3 are evenly distributed in an array above the upper conveyor track 21. Each printing mechanism 3 is physically isolated and independently controlled, and corresponds to different color ink printing operations. The curing and cooling mechanism 4 includes a drying device 41 and a cooling device 42 fixedly connected to the middle of the machine frame 1. The drying device 41 and the cooling device 42 are located above the lower conveyor track 22 and are distributed sequentially along the conveying direction of the lower conveyor track 22. The control component 5 is electrically connected to the conveying mechanism 2, the printing mechanism 3, and the curing and cooling mechanism 4 respectively.
[0022] The upper conveyor track 21, lower conveyor track 22, lowering device 24 and lifting device 25 form a closed-loop reciprocating circulation circuit, which allows the conveyor trolley 23 to continuously carry the silicone substrate and sequentially pass through four sets of independent printing mechanisms 3 for multi-color overprinting. There is no need for manual transfer of materials between different devices, which changes the inefficient mode of traditional single-station color and plate changing. At the same time, each set of printing mechanisms 3 is independently controlled and evenly distributed in an array. With the positioning tooling of the conveyor trolley 23, the overprinting of each color pattern is accurate and stable, which significantly improves the degree of automation and product yield. Example 2:
[0023] Reference Figure 1-6 This is the second embodiment of the present invention, which differs from the first embodiment in that: Each printing mechanism 3 includes a sealed ink storage and supply assembly, a vertical lifting drive assembly 31, a screen clamping assembly 32, a screen printing screen 33, a doctor blade reciprocating drive assembly 34, and an ink recovery and diversion assembly. The sealed ink storage and supply assembly includes a sealed ink storage tank, a stirring unit, a quantitative ink supply pump, a one-way anti-backflow valve, an ink level sensor, and a sealed dustproof cover. The stirring unit is located inside the sealed ink storage tank. The quantitative ink supply pump connects the sealed ink storage tank to the screen printing screen 33. The vertical lifting drive assembly 31 is an independent servo electric cylinder. There are two servo electric cylinders, and their output ends are respectively fixedly connected to the doctor blade 35 and the return ink blade 36.
[0024] The ink recovery and diversion assembly includes an inclined diversion channel and a detachable ink collection and recovery box. The ink collected in the ink collection and recovery box can flow back to the corresponding sealed ink storage and supply assembly. The stencil quick clamping assembly 32 includes a symmetrically arranged stencil support, clamping block, positioning pin and locking knob. The squeegee reciprocating drive assembly 34 includes a double guide rail, a servo motor, a transmission belt and a reciprocating slide. The reciprocating slide is slidably connected to the top of the double guide rail and is connected to the servo motor through the transmission belt.
[0025] Each of the four printing units is equipped with an independent sealed ink storage and supply component, lifting drive, ink scraping and ink return system, and ink recovery and diversion system. They are completely physically isolated from each other and operate independently. Each unit can independently set parameters such as stirring speed, ink supply volume, ink scraping speed, and pressure. This effectively eliminates the problems of color mixing and contamination between different colors of ink that are easily generated by traditional shared ink supply and scraping systems, ensuring that the colors of each print are pure and the boundaries are clear, and that the color consistency is excellent during long-term mass production.
[0026] The top of the conveyor trolley 23 is equipped with a positioning fixture for fixing the silicone substrate. The drying device 41 is an infrared constant temperature drying module with an adjustable temperature range of 50-120℃. The cooling device 42 is a circulating air cooling module. The lowering device 24 and the lifting device 25 are both servo lifting and transfer platforms. The control component 5 is a PLC controller with a touch screen display. It can independently set the stirring speed, ink supply, lifting stroke, ink scraping speed, and ink scraping pressure of the four printing mechanisms 3, and synchronously control the conveying, drying, and cooling operating parameters.
[0027] The curing and cooling mechanism 4 is located in the middle of the frame 1 and above the lower conveyor track 22. This allows the ink to be quickly dried by the infrared constant temperature drying device 41 and then cooled by the circulating air cooling device 42 on its way back to the lower layer after printing. This achieves integrated continuous operation of "printing-drying-cooling". After each color is printed, it is immediately cured and cooled, avoiding problems such as smudging, sticking or color fading when multiple layers of ink are overprinted. This not only improves the printing fastness and surface quality, but also greatly reduces the equipment footprint and lowers the workshop space requirements.
[0028] The remaining structure is the same as that in Example 1.
[0029] The workflow of this invention is as follows: First, the silicone substrate to be printed is fixed on the positioning fixture at the top of the conveying trolley 23. The conveying mechanism 2 is started by the control component 5. The conveying trolley 23 moves on the upper conveying track 21 to the bottom of the first printing mechanism 3. The printing mechanism 3 operates independently according to the preset parameters. Ink is supplied to the screen printing screen 33 through the sealed ink storage and supply component. The vertical lifting drive component 31 drives the doctor blade 35 and the return ink blade 36 to descend to the working position. The doctor blade reciprocating drive component 34 drives the doctor blade 35 and the return ink blade 36 to reciprocate, printing the ink of the corresponding color on the surface of the silicone substrate, completing the first color printing. Next, the conveyor trolley 23, which has completed the first color printing operation, moves to the end of the upper conveyor track 21 and is transferred to the lower conveyor track 22 by the lowering device 24. Then it continues to move on the lower conveyor track 22, passing through the drying device 41 and cooling device 42 located above the lower conveyor track 22 in sequence. The infrared constant temperature drying module quickly dries and cures the printing ink, and the circulating air cooling module cools and cools the printed silicone substrate. Finally, after cooling, the conveyor trolley 23 continues to move along the lower conveyor track 22 to the end, and is then transferred back to the starting end of the upper conveyor track 21 by the lifting device 25 to enter the next round of printing operation. This cycle is repeated to complete the four-color printing operation. Throughout the process, the control component 5 synchronously adjusts the operating parameters of conveying, printing, drying and cooling to realize continuous automated cyclic production of silicone multicolor printing.
[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.
Claims
1. A silicone multicolor printing machine, characterized in that, include: The machine includes a frame (1), a conveying mechanism (2), four independent printing mechanisms (3), a curing and cooling mechanism (4), and a control component (5). The conveying mechanism (2) includes an upper conveying track (21) and a lower conveying track (22) symmetrically distributed inside the machine frame (1), and a conveying trolley (23) that moves on the conveying track. The upper conveying track (21) and the lower conveying track (22) are respectively equipped with a lowering device (24) and a lifting device (25) for the conveying trolley (23) to move on the upper conveying track (21) and the lower conveying track (22). The upper conveying track (21), the lower conveying track (22), the lowering device (24), and the lifting device (25) together form a reciprocating loop of the conveying trolley (23). The four independent printing mechanisms (3) are fixedly connected to the top of the machine frame (1), and the four independent printing mechanisms (3) are evenly distributed in an array above the upper conveyor track (21). Each printing mechanism (3) is physically isolated and independently controlled, and corresponds to different color ink printing operations. The curing and cooling mechanism (4) includes a drying device (41) and a cooling device (42) fixedly connected to the middle of the frame (1). The drying device (41) and the cooling device (42) are located above the lower conveying track (22) and are distributed sequentially along the conveying direction of the lower conveying track (22). The control component (5) is electrically connected to the conveying mechanism (2), the printing mechanism (3), and the curing and cooling mechanism (4), respectively.
2. The silicone multicolor printing machine according to claim 1, characterized in that, Each printing mechanism (3) includes a sealed ink storage and supply assembly, a vertical lifting drive assembly (31), a screen printing quick clamping assembly (32), a screen printing stencil (33), a squeegee reciprocating drive assembly (34), and an ink recovery and diversion assembly.
3. A silicone multicolor printing machine according to claim 2, characterized in that, The sealed ink storage and supply assembly includes a sealed ink storage tank, a stirring unit, a metering ink supply pump, a one-way anti-backflow valve, an ink level sensor, and a sealed dustproof cover. The stirring unit is located inside the sealed ink storage tank, and the metering ink supply pump is connected to the sealed ink storage tank and the screen printing screen (33).
4. A silicone multicolor printing machine according to claim 2, characterized in that, The vertical lifting drive assembly (31) is an independent servo electric cylinder. There are two servo electric cylinders, and the output ends are respectively fixedly connected to the doctor blade (35) and the ink return blade (36).
5. A silicone multicolor printing machine according to claim 2, characterized in that, The ink recovery and diversion assembly includes an inclined diversion channel and a detachable ink collection and recovery box. The ink collected by the ink collection and recovery box can be returned to the corresponding sealed ink storage and supply assembly. The screen plate quick clamping assembly (32) includes a symmetrically arranged screen plate support, clamping block, positioning pin and locking knob.
6. A silicone multicolor printing machine according to claim 2, characterized in that, The ink scraping reciprocating drive assembly (34) includes a double guide rail, a servo motor, a transmission belt and a reciprocating slide table. The reciprocating slide table is slidably connected to the top of the double guide rail and is connected to the servo motor via the transmission belt.
7. A silicone multicolor printing machine according to claim 1, characterized in that, The top of the conveying trolley (23) is provided with a positioning fixture for fixing the silicone substrate.
8. A silicone multicolor printing machine according to claim 1, characterized in that, The drying device (41) is an infrared constant temperature drying module with an adjustable temperature range of 50-120℃, and the cooling device (42) is a circulating air-cooled cooling module.
9. A silicone multicolor printing machine according to claim 1, characterized in that, The lowering device (24) and the lifting device (25) are both servo lifting and transfer platforms.
10. A silicone multicolor printing machine according to claim 1, characterized in that, The control component (5) is a PLC controller with a touch screen. It can independently set the stirring speed, ink supply, lifting stroke, scraping speed and scraping pressure of the four printing mechanisms (3), and synchronously regulate the conveying, drying and cooling operating parameters.