Heating vacuum adsorption device and printing equipment

Abstract

The utility model relates to a kind of heating vacuum adsorption device and printing equipment, heating vacuum adsorption device includes adsorption platform and the vacuum adsorption component being connected with the adsorption platform, the face of adsorption platform and processing material contact is working surface, the inside hollow of adsorption platform forms inner chamber, heating piece is equipped in the inner chamber, multiple baffle are arrayed in the inner chamber, the baffle is perpendicular to the working surface and the inner chamber is separated into multiple independent adsorption cavity, the adsorption hole of the working surface is opened and is communicated with the adsorption cavity, the adsorption cavity is opened and is communicated with the adsorption hole, the vacuum adsorption component is communicated with the adsorption cavity by the adsorption hole, for providing negative pressure to the adsorption hole.The heating vacuum adsorption device and printing equipment designed by the utility model, heating vacuum adsorption device can realize the partition control of adsorption force.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, and in particular to a heating vacuum adsorption device and printing equipment. Background Technology

[0002] In modern printing equipment, especially in high-precision printing processes such as wide-format inkjet printing, thermal transfer printing, and 3D printing, the stability of the processed materials (such as paper, fabric, film, and composite materials) during the printing process directly affects print quality and production efficiency. Existing printing equipment often employs a composite adsorption device that integrates heating and vacuum adsorption. This device not only enhances the thermal stability and printability of the material through heating but also utilizes vacuum adsorption technology to provide uniform and controllable adsorption force, thereby ensuring that the material remains flat and stable during printing and avoiding problems such as image misalignment and color difference caused by material warping, displacement, or vibration. However, in existing technologies, adsorption systems are mostly designed with overall negative pressure, making it difficult to control the adsorption force in different zones, and thus unable to meet the varying adsorption intensity requirements of different materials or printing areas. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this invention is to design a heated vacuum adsorption device and a printing equipment, wherein the heated vacuum adsorption device can achieve zoned control of adsorption force.

[0004] The objective of this utility model is achieved through the following technical solution: A heated vacuum adsorption device is designed, comprising an adsorption platform and a vacuum adsorption assembly connected to the adsorption platform. The surface of the adsorption platform that contacts the processed material is the working surface. The adsorption platform is hollow, forming an inner cavity. A heating element is provided in the inner cavity. Multiple partitions are arranged in an array in the inner cavity. The partitions are set perpendicular to the working surface and divide the inner cavity into multiple independent adsorption chambers. The working surface has adsorption holes that communicate with the adsorption chambers. Each adsorption chamber has a suction hole. The vacuum adsorption assembly is connected to the adsorption chamber through the suction hole and is used to provide negative pressure to the adsorption hole.

[0005] In this solution, a heated vacuum adsorption device is applied to the printing equipment. This device effectively fixes the printing media, preventing displacement during printing due to airflow, mechanical movement, or static electricity, thus ensuring accurate ink ejection from the printhead. In inkjet printing, heating promotes faster ink drying and reduces droplet diffusion, thereby improving print resolution and color reproduction. Furthermore, the internal cavity is divided into multiple independent adsorption chambers by partitions. Each independent adsorption chamber allows for zoned vacuum adsorption control, enabling adjustments to the vacuum level of each chamber based on different material characteristics. This achieves personalized adsorption control, improving adsorption accuracy and adaptability, and is suitable for materials with irregular shapes, varying sizes, or those requiring localized reinforcement.

[0006] Furthermore, multiple air intake holes are provided, and the multiple air intake holes are provided on the bottom surface of the adsorption platform opposite to the working surface.

[0007] In this design, the suction port is located on the bottom surface of the adsorption platform opposite to the working surface. Combined with the overall heating and vacuum adsorption design of the device, the fixing effect of the printing media and the operating efficiency of the equipment can be significantly optimized. The suction port on the bottom surface forms an indirect airflow channel with the working surface through the inner cavity, which can reduce local airflow disturbance and make the negative pressure more evenly distributed on the working surface. The suction port is far away from the working surface, which can reduce the direct heat loss of the heating element through the airflow and improve the heat energy utilization rate.

[0008] Furthermore, the vacuum adsorption assembly includes a vacuum generating unit and multiple ventilation pipes corresponding to the adsorption chambers. One end of each ventilation pipe is connected to the air intake hole, and the other end is connected to the vacuum generating unit.

[0009] In this solution, multiple ventilation ducts correspond one-to-one with the adsorption chambers, enabling independent negative pressure adjustment for each adsorption chamber. This allows for zoned control based on the shape, thickness, or local adsorption requirements of the processed material, avoiding issues of insufficient or excessive local adsorption caused by overall adsorption. The vacuum generating unit rapidly generates a vacuum using compressed air, and combined with the independent ventilation duct design, significantly shortens the negative pressure build-up time for each adsorption chamber, improves the dynamic response to material position changes during printing, and reduces the risk of printing misalignment due to adsorption delay.

[0010] Furthermore, the ventilation pipe includes a plurality of first ventilation pipes corresponding one-to-one with the air intake holes, and a second ventilation pipe. One end of the first ventilation pipe is connected to the air intake hole, and the other end is connected to the second ventilation pipe. The second ventilation pipe is connected to the vacuum generating unit.

[0011] In this scheme, the first ventilation pipe is directly connected to the air intake hole of each adsorption chamber, reducing the detour path of gas transmission. The second ventilation pipe, as a collection channel, can be designed with an appropriate pipe diameter according to the total flow requirements, avoiding air pressure loss caused by the pipe diameter being too small, and ensuring that the negative pressure of the vacuum generating unit can be efficiently transmitted to each adsorption chamber.

[0012] Furthermore, the vacuum generating unit is provided with several independently openable and closable connection ports, and each connection port is connected to the second ventilation pipe in a corresponding manner.

[0013] In this solution, the vacuum generating unit is equipped with a solenoid valve corresponding to the connection port. The vacuum supply to the corresponding adsorption chamber is controlled by opening and closing the solenoid valve. The independent opening and closing function allows only the connection port of the working area to be opened, without needing to evacuate the entire adsorption platform, reducing the ineffective load on the vacuum generating unit and lowering energy consumption. The independent opening and closing of each connection port enables individual control of the vacuum level of the corresponding adsorption chamber. The negative pressure can be flexibly adjusted according to the characteristics of the processed materials in different areas, avoiding localized insufficient or excessive adsorption problems caused by uniform overall vacuum levels. For materials with irregular shapes or partial hollows, the negative pressure can be concentrated in the effective adsorption area by closing the connection ports in non-contact areas, ensuring stable fixation of the material and reducing the risk of processing deviation.

[0014] Furthermore, the partition is a hollow square tube, and the heating element is disposed inside the hollow square tube.

[0015] In this design, the hollow square tube partition serves as both structural support and heating, eliminating the need for additional space within the adsorption platform for heating components. The square tube structure itself acts as a carrier of the heating medium, reducing redundant components. Heat generated by the internal heating elements (such as resistance wires and heating rods) is directly conducted to the working surface of the adsorption platform through the metal tube wall, minimizing heat loss. Each hollow square tube partition has an independently built-in heating element, allowing for temperature adjustment of different adsorption chambers through zoned temperature control. This adapts to the localized heating needs of materials and avoids the uneven thermal field problem caused by traditional overall heating.

[0016] Furthermore, the hollow square tube is a metal heat-conducting tube.

[0017] In this solution, metal heat pipes (such as aluminum alloy pipes) have excellent thermal conductivity, which allows the heat generated by the heating element to be quickly conducted through the pipe wall to the working surface of the adsorption platform, shortening the preheating time and improving the heat utilization efficiency.

[0018] Furthermore, the device also includes a frame, on which the adsorption platform and the vacuum adsorption assembly are disposed, with the vacuum adsorption assembly located below the adsorption platform.

[0019] In this solution, the vacuum adsorption component is located below the frame, avoiding occupying the space above or around the adsorption platform, and reserving sufficient operating area for the loading, unloading and automated conveying mechanisms (such as robotic arms and conveyor belts) of the processed materials.

[0020] Furthermore, the bottom of the frame is provided with adjustable support feet, and the support feet are provided with casters on the side.

[0021] In this solution, the device can be easily pushed to the designated workstation using rollers (such as casters with brakes), which facilitates workshop layout adjustments and eliminates the need for forklifts or other tools; short-distance movement can be completed manually. By adjusting the support legs (such as a screw lifting structure), the frame is lifted off the ground, and the rigid contact between the support legs and the ground secures the equipment, preventing displacement caused by vibration during processing.

[0022] Furthermore, a printing device is designed, including the aforementioned heating vacuum adsorption device.

[0023] Compared with the prior art, the beneficial effects of this utility model are: In this solution, a heated vacuum adsorption device is applied to the printing equipment. This device effectively fixes the printing media, preventing displacement during printing due to airflow, mechanical movement, or static electricity, thus ensuring accurate ink ejection from the printhead. In inkjet printing, heating promotes faster ink drying and reduces droplet diffusion, thereby improving print resolution and color reproduction. Furthermore, the internal cavity is divided into multiple independent adsorption chambers by partitions. Each independent adsorption chamber allows for zoned vacuum adsorption control, enabling adjustments to the vacuum level of each chamber based on different material characteristics. This achieves personalized adsorption control, improving adsorption accuracy and adaptability, and is suitable for materials with irregular shapes, varying sizes, or those requiring localized reinforcement. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a heating vacuum adsorption device according to an embodiment of the present invention.

[0025] Figure 2 This is a perspective view of an adsorption platform according to an embodiment of the present invention.

[0026] Figure 3 for Figure 2 A magnified view of part A.

[0027] Figure 4 This is a structural schematic diagram of the adsorption platform from the bottom view of an embodiment of the present invention.

[0028] Illustration: 1. Adsorption platform; 11. Working surface; 12. Adsorption hole; 13. Inner cavity; 131. Adsorption chamber; 14. Heating element; 15. Partition; 16. Bottom surface; 17. Suction hole; 2. Vacuum adsorption assembly; 21. Vacuum generating unit; 211. Connection port; 22. Ventilation pipe; 221. First ventilation pipe; 222. Second ventilation pipe; 3. Frame; 31. Support leg; 32. Roller. Detailed Implementation

[0029] To facilitate understanding of this invention, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the invention. However, this invention can be implemented in many different forms and is not limited to the embodiments described herein. Example 1:

[0030] like Figure 1 As shown, this embodiment provides a heated vacuum adsorption device, including a frame 3, an adsorption platform 1, and a vacuum adsorption component 2 connected to the adsorption platform 1. The adsorption platform 1 and the vacuum adsorption component 2 are mounted on the frame 3, with the vacuum adsorption component 2 located below the adsorption platform 1. This avoids occupying the space above or around the adsorption platform 1, reserving sufficient operating area for the loading, unloading, and automated conveying mechanisms (such as robotic arms and conveyor belts) of processed materials. The bottom of the frame 3 is equipped with adjustable support feet 31. The number of support feet 31 is determined according to the size of the frame 3; in this embodiment, four support feet 31 are provided. Rollers 32 are located beside the support feet 31. The rollers 32 are omnidirectional wheels with brakes, allowing the device to be easily pushed to a designated workstation. This facilitates workshop layout adjustments and eliminates the need for forklifts or other tools, enabling short-distance movement manually. By adjusting the support feet 31 (e.g., using a spiral lifting structure), the frame 3 is lifted, causing the rollers 32 to leave the ground. The rigid contact between the support feet 31 and the ground secures the equipment, preventing displacement due to vibration during processing.

[0031] like Figure 2 and Figure 3As shown, the surface of the adsorption platform 1 that contacts the processed material is the working surface 11. In this embodiment, the working surface 11 is designed as a rectangle. In other possible embodiments, the working surface 11 can be designed into other shapes according to actual conditions. The adsorption platform 1 has a hollow interior forming an inner cavity 13. A heating element 14 is provided in the inner cavity 13. Multiple partitions 15 are arranged in an array in the inner cavity 13. The partitions 15 are set perpendicular to the working surface 11 and divide the inner cavity into multiple independent adsorption chambers 131. The working surface 11 has adsorption holes 12 that communicate with the adsorption chambers 131. The adsorption holes 12 are distributed throughout the working surface 11. The adsorption chambers 131 have suction holes 17. Multiple suction holes 17 are provided and are located on the bottom surface 16 of the adsorption platform 1 opposite to the working surface 11. In this embodiment, each adsorption chamber 131 has three suction holes 17 arranged in an array. The suction port 17 is located on the bottom surface 16 of the adsorption platform 1, opposite to the working surface 11. Combined with the overall heating and vacuum adsorption design of the device, this significantly optimizes the fixing effect of the printing media and the operating efficiency of the equipment. The suction port 17 on the bottom surface 16 forms an indirect airflow channel with the working surface 11 through the inner cavity, which can reduce local airflow disturbance and make the negative pressure more evenly distributed on the working surface 11. The suction port 17 being far away from the working surface 11 can reduce the direct heat loss of the heating element through the airflow and improve the thermal energy utilization rate. The vacuum adsorption component 2 is connected to the adsorption chamber 131 through the suction port 17 and is used to provide negative pressure to the adsorption port 12.

[0032] The heating vacuum adsorption device of this embodiment is applied to a printing device. This device can effectively fix the printing medium and prevent it from shifting during the printing process due to airflow, mechanical movement, or static electricity, ensuring accurate ink ejection from the printhead. In inkjet printing, heating can promote faster ink drying and reduce ink droplet diffusion, thereby improving print resolution and color reproduction. In addition, the inner cavity 13 is divided into multiple independent adsorption chambers 131 by the partition 15. Each independent adsorption chamber 131 can achieve zoned vacuum adsorption control. The vacuum degree of each chamber can be adjusted according to the different material characteristics to achieve personalized adsorption control, improve adsorption accuracy and adaptability, and is suitable for materials with irregular shapes, different sizes, or those that require localized reinforcement and fixation.

[0033] like Figure 1 and Figure 4As shown, the vacuum adsorption assembly 2 includes a vacuum generating unit 21 and multiple ventilation pipes 22 corresponding to the adsorption chambers 131. One end of each ventilation pipe 22 is connected to the suction port 17, and the other end is connected to the vacuum generating unit 21. The multiple ventilation pipes 22 correspond one-to-one with the adsorption chambers 131, enabling independent negative pressure adjustment for each adsorption chamber 131. This allows for zoned control based on the shape, thickness, or local adsorption requirements of the processed material, avoiding insufficient or excessive local adsorption caused by overall adsorption. The vacuum generating unit 21 rapidly generates a vacuum using compressed air. Combined with the air path design of the independent ventilation pipes 22, this significantly shortens the negative pressure build-up time for each adsorption chamber, improves the dynamic response to material position changes during printing, and reduces the risk of printing misalignment due to adsorption delay. Specifically, the ventilation pipe 22 includes multiple first ventilation pipes 221 corresponding one-to-one with the suction holes 17, and second ventilation pipes 222. One end of the first ventilation pipe 221 is connected to the suction hole 17, and the other end is connected to the second ventilation pipe 222. The second ventilation pipe 222 is connected to the vacuum generating unit 21. The first ventilation pipes 221 directly connect to the suction holes 17 of each adsorption chamber 131, reducing the detour path of gas transmission. The second ventilation pipes 222, as a collection channel, can be designed with an appropriate pipe diameter according to the total flow requirements to avoid air pressure loss due to insufficient pipe diameter, ensuring that the negative pressure of the vacuum generating unit 21 can be efficiently transmitted to each adsorption chamber.

[0034] It should be noted that the vacuum generating unit 21 employs a vacuum generator or vacuum pump. The vacuum generating unit 21 has several independently openable / closeable connection ports 211, each corresponding to a second ventilation pipe 222. The vacuum generating unit 21 is equipped with a solenoid valve corresponding to each connection port 211, controlling the vacuum supply to the corresponding adsorption chamber 131 through the opening and closing of the solenoid valve. The independent opening and closing function allows only the connection ports 211 in the working area to be opened, eliminating the need to evacuate the entire adsorption platform 1, reducing the ineffective load on the vacuum generating unit and lowering energy consumption. The independent opening and closing of each connection port 211 enables individual control of the vacuum level in the corresponding adsorption chamber 131, allowing for flexible adjustment of the negative pressure based on the characteristics of the processed materials in different areas, avoiding localized insufficient or excessive adsorption due to a uniform overall vacuum level. For materials with irregular shapes or partial hollowing, the negative pressure can be concentrated in the effective adsorption area by closing the connection ports 211 in non-contact areas, ensuring stable material fixation and reducing the risk of processing deviation.

[0035] like Figure 3As shown, in this embodiment, the partition 15 is a hollow square tube, and the heating element 14 is disposed inside the hollow square tube. The hollow square tube partition serves both structural support and heating functions, eliminating the need for additional space to install the heating element 14 in the inner cavity 13 of the adsorption platform 1. The square tube structure itself can act as a carrier for the heating medium, reducing redundant components. The heating element 14 inside the hollow square tube can be a resistance wire or a heating rod, and the generated heat is directly conducted to the working surface 11 of the adsorption platform 1 through the metal tube wall, resulting in minimal heat loss. Each hollow square tube partition 15 has an independently built-in heating element 14, and the temperature of different adsorption cavities 131 can be adjusted through zoned temperature control to meet the local heating needs of materials and avoid the problem of uneven thermal field caused by traditional overall heating. In addition, the hollow square tube is a metal heat-conducting tube, such as an aluminum alloy tube, which has excellent thermal conductivity, allowing the heat generated by the heating element 14 to be quickly conducted to the working surface 11 of the adsorption platform 1 through the tube wall, shortening the preheating time and improving heat utilization efficiency.

[0036] It should be noted that the hollow square tube has several through holes on the side facing the adsorption chamber 131, and the hollow square tube also has several through holes corresponding to the adsorption holes 12 on the top facing the working surface 11. These through holes can accelerate the heat transfer efficiency generated by the heating element 14, enhance heat exchange through convection and radiation, and avoid local heat accumulation. On the other hand, they form an airflow channel with the adsorption holes 12 of the working surface 11, thereby ensuring that the working surface 11 can provide a stable adsorption force in the area facing the hollow square tube. Example 2:

[0037] This embodiment provides a printing device, including the heating vacuum adsorption device described above. A raw material platform is set upstream of the heating vacuum adsorption device, and a finished product platform is set downstream. The raw materials stored on the raw material platform are transported to the adsorption platform by automated equipment and then adsorbed on the working surface 11, so that the print head of the printing device can perform printing operations.

[0038] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, the inclusion of "first," "second," etc., in a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heating vacuum adsorption device, characterized in that, The device includes an adsorption platform and a vacuum adsorption assembly connected to the adsorption platform. The surface of the adsorption platform that contacts the processed material is the working surface. The adsorption platform is hollow, forming an inner cavity. A heating element is provided in the inner cavity. Multiple partitions are arranged in an array in the inner cavity. The partitions are set perpendicular to the working surface and divide the inner cavity into multiple independent adsorption chambers. The working surface has adsorption holes that communicate with the adsorption chambers. The adsorption chambers have suction holes. The vacuum adsorption assembly is connected to the adsorption chambers through the suction holes and is used to provide negative pressure to the adsorption holes.

2. The heating vacuum adsorption device according to claim 1, characterized in that, Multiple air intake holes are provided, and the multiple air intake holes are located on the bottom surface of the adsorption platform opposite to the working surface.

3. The heating vacuum adsorption device according to claim 2, characterized in that, The vacuum adsorption assembly includes a vacuum generating unit and multiple ventilation pipes corresponding to the adsorption chambers. One end of each ventilation pipe is connected to the air intake hole, and the other end is connected to the vacuum generating unit.

4. The heating vacuum adsorption device according to claim 3, characterized in that, The ventilation pipe includes a plurality of first ventilation pipes corresponding one-to-one with the air intake holes, and a second ventilation pipe. One end of the first ventilation pipe is connected to the air intake hole, and the other end is connected to the second ventilation pipe. The second ventilation pipe is connected to the vacuum generating unit.

5. The heating vacuum adsorption device according to claim 4, characterized in that, The vacuum generating unit is provided with several independently openable and closable connection ports, and each connection port is connected to the second ventilation pipe in a corresponding manner.

6. The heating vacuum adsorption device according to claim 1, characterized in that, The partition is a hollow square tube, and the heating element is disposed inside the hollow square tube.

7. The heating vacuum adsorption device according to claim 6, characterized in that, The hollow square tube is a metal heat-conducting tube.

8. The heating vacuum adsorption device according to claim 1, characterized in that, The device also includes a frame, on which the adsorption platform and the vacuum adsorption assembly are mounted, with the vacuum adsorption assembly located below the adsorption platform.

9. The heating vacuum adsorption device according to claim 8, characterized in that, The frame is equipped with adjustable support feet at the bottom, and rollers are provided on the side of the support feet.

10. A printing device, characterized in that, Includes the heating vacuum adsorption device according to any one of claims 1 to 9.

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