Air suction assembly and air volume control device of UV printer

Abstract

The invention relates to the field of UV printers, in particular to an air suction assembly and an air volume control device of a UV printer, which are used for solving the problem of insufficient suction force caused by influence on formation of a negative pressure environment in an air suction platform due to unoccupied air holes caused by incapability of adapting to product sizes when the air suction platform faces products with different sizes. According to the air suction device, the translation rod capable of linearly moving is arranged below the air suction platform, and the opening position of the flow gathering cover is controlled through the translation rod, so that the opening position is matched with a product needing to be adsorbed, suction force provided by the air suction opening is prevented from being consumed by idle air holes, and the negative pressure environment in the flow gathering cover and below the product is ensured to be stable; and meanwhile, in the operation process of the air suction platform, the negative pressure environment in the flow gathering cover, the operation parameters of the air suction opening and the air flow in the negative pressure air duct are collected and analyzed, and it is ensured that the sealing performance of the space formed among the flow gathering cover, the air suction panel and the adsorbed printing medium and the operation effect of the air suction opening meet the design requirement.

Description

Technical Field

[0001] The invention relates to the field of UV printers, in particular to an air suction component and an air volume control device of a UV printer. Background Art

[0002] UV single-pass printer is a high-tech full-color digital printing machine without plate making. It is not limited by materials and can perform color photo-level printing on the surfaces of various plastic products, PVC, ABS, acrylic, hollow board, coated paper, white cardboard, coated paper, aluminum-plastic board, wood board, glass, metal plate, tile, foam board, cardboard and other materials. In the printing process of the product to be printed, the product to be printed needs to be fixed to improve the accuracy of printing. In the existing scheme, the operator manually turns on or off the suction switch of the printer platform so that the product to be printed can be adsorbed on the platform. For products of different sizes, when placed on the suction platform, the suction holes cannot be completely covered because the products of different sizes cover different areas, making it difficult to maintain the negative pressure inside the suction platform, resulting in poor adsorption effect. At present, the prior art patent document CN106379060B discloses a technical solution, in which the suction platform is divided into zones, and thus different zones are subjected to separate negative pressure control, which solves the problem of insufficient negative pressure caused by the inability of products of different sizes to completely cover the air holes of the suction platform. However, in actual use, due to the different sizes and shapes of products, the method of dividing the suction platform into zones can refine the suction platform, but the size of the suction platform is still changed step by step through the combination of different zones. When the product size cannot adapt to the enabled combined zone, the problem of the difficulty of the suction holes being completely covered cannot be completely solved. In view of the above technical problems, this application proposes a solution. Summary of the invention

[0003] In the present invention, a linearly movable translation rod is arranged under the suction platform, and the opening position of the condenser is controlled by the translation rod, so that the opening position is consistent with the product to be adsorbed, so that the negative pressure environment provided by the suction port is gathered inside the condenser, and the suction force provided by the suction port is avoided from being consumed by the idle air holes, thereby ensuring the stability of the negative pressure environment inside the condenser and below the adsorbed product, and solving the problem that when facing products of different sizes, the suction platform cannot adapt to the product size, resulting in empty air holes, thereby affecting the formation of the negative pressure environment in the suction platform and causing insufficient suction. A suction component and an air volume control device for a UV printer are proposed.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A suction assembly of a UV printer, including a suction assembly of a UV printer, including a suction panel, a plurality of sets of box plates are fixedly installed below the suction panel, wherein the inner wall of the box plate is provided with a plurality of sets of slide grooves, a plurality of sets of holes are provided on the suction panel, so that the suction panel sucks air through the holes, a suction port is arranged below the suction panel, the suction port is fixedly installed with the box plate through a fixing frame, a negative pressure air duct is fixedly installed on the lower surface of the suction port, and the gas extracted by the suction port is discharged through the negative pressure air duct; A control assembly is slidably connected in the slide groove inside the box plate, and the control assembly includes a first translation rod and a second translation rod, wherein the first translation rod and the second translation rod each have two symmetrically arranged groups, the two groups of the first translation rods are slidably connected in the slide groove of the box plate, and the opposite sides of the two groups of the first translation rods are also provided with slide grooves, and both ends of the two groups of the second translation rods are slidably connected in the slide grooves on the two groups of the first translation rods respectively; A condenser is fixedly mounted on the outer wall of the air suction port, and the top of the condenser is fixedly connected to the lower surface of the control component.

[0005] A wind volume control device for a UV printer, comprising a controller, the controller being connected to an air suction port, a first translation rod and a second translation rod, the controller also comprising a wind volume control system for the UV printer, the wind volume control system comprising an effective area interaction unit, a wind volume adjustment control unit, a negative pressure environment detection unit and a wind suction effect feedback unit; The controller can control the first translation rod and the second translation rod to move the first translation rod and the second translation rod to a set position.

[0006] As a preferred embodiment of the present invention, the effective area interaction unit is used to calculate the area and adsorption coefficient of the suction area to obtain the minimum suction volume, and send it to the air volume adjustment control unit; The air volume adjustment control unit calculates the minimum air volume through the area of ​​the air suction area and the adsorption coefficient, and controls the air suction port through the minimum air suction volume; The negative pressure environment detection unit detects the negative pressure environment in the focusing hood, obtains the negative pressure maintenance rate, performs threshold analysis on the negative pressure maintenance rate, and generates a negative pressure abnormality signal or a negative pressure normal signal; The suction effect feedback unit obtains the gas flow rate, compares the gas flow rate with the minimum suction volume, and confirms the suction effect.

[0007] As a preferred embodiment of the present invention, the method for the effective area interaction unit to measure the area of ​​the suction area is: The effective area interaction unit obtains the positions of the first translation rod and the second translation rod through the controller, and calculates the area of ​​the air suction area according to the positions of the first translation rod and the second translation rod; The method for obtaining the adsorption coefficient by the active area interaction unit is: The active area interaction unit obtains the type of printing medium to be adsorbed, searches through a database according to the type of printing medium to be adsorbed, and obtains the adsorption coefficient of the printing medium.

[0008] As a preferred embodiment of the present invention, the air volume adjustment control unit calculates the required air volume by multiplying the adsorption coefficient and the area of ​​the air suction region, and records the air volume as the minimum air volume.

[0009] As a preferred embodiment of the present invention, the negative pressure environment detection unit obtains the minimum suction volume through the air volume adjustment control unit. At the same time, the negative pressure environment detection unit detects the negative pressure inside the focusing hood and records it as internal negative pressure. The negative pressure environment detection unit obtains the area of ​​the suction area through the effective area interaction unit.

[0010] As a preferred embodiment of the present invention, the negative pressure environment detection unit records the area of ​​the suction area as S, the minimum suction volume as F, and the internal negative pressure as P. The negative pressure environment detection unit generates a negative pressure retention rate B through formula analysis. .

[0011] As a preferred embodiment of the present invention, the negative pressure environment detection unit compares the negative pressure maintenance rate B with the preset maintenance rate threshold. If the negative pressure maintenance rate B is less than the preset negative pressure maintenance rate threshold, a negative pressure abnormality signal is generated; if the negative pressure maintenance rate B is greater than or equal to the preset negative pressure maintenance rate threshold, a negative pressure normal signal is generated.

[0012] As a preferred embodiment of the present invention, after the negative pressure environment detection unit generates a negative pressure abnormality signal, the negative pressure abnormality signal is sent to the air volume adjustment control unit. After receiving the negative pressure abnormality signal, the air volume adjustment control unit increases the minimum suction volume and controls the suction port according to the increased minimum suction volume. Each time the air volume adjustment control unit increases the minimum suction volume, it increases it according to a preset increase ratio.

[0013] As a preferred embodiment of the present invention, the suction effect feedback unit obtains the minimum suction volume through the air volume adjustment control unit, and detects the air flow velocity in the negative pressure air duct at the same time. The suction effect feedback unit obtains the cross-sectional area of ​​the negative pressure air duct through a preset database, and obtains the gas flow in the negative pressure air duct by multiplying the cross-sectional area and the air flow velocity.

[0014] As a preferred embodiment of the present invention, the suction effect feedback unit compares the gas flow in the negative pressure air duct with the minimum suction volume. If the gas flow is less than the minimum suction volume and the difference between the gas flow and the minimum suction volume is outside the preset range, an insufficient suction effect signal is generated. If the gas flow is greater than the minimum suction volume and the difference between the gas flow and the minimum suction volume is outside the preset range, an abnormal suction effect signal is generated. If the difference between the gas flow and the minimum suction volume is within the preset range, a normal suction effect signal is generated.

[0015] As a preferred embodiment of the present invention, the suction effect feedback unit generates an insufficient suction effect signal or an abnormal suction effect signal, and generates an insufficient suction force alarm when generating an insufficient suction effect signal, and generates an abnormal suction control alarm when generating an abnormal suction effect signal.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a linearly movable translation rod is arranged under the suction platform, and the opening position of the condenser is controlled by the translation rod, so that the opening position is consistent with the product to be adsorbed, so that the negative pressure environment provided by the suction port is gathered inside the condenser, avoiding the suction force provided by the suction port being consumed by idle air holes, ensuring the stability of the negative pressure environment inside the condenser and below the adsorbed product, and ensuring sufficient suction force.

[0017] 2. In the present invention, during the operation of the suction platform, the negative pressure environment inside the focusing hood is collected, and the stability of the negative pressure environment inside the focusing hood is analyzed according to the operating parameters of the negative pressure environment and the suction port, thereby ensuring the airtightness of the space formed between the focusing hood, the suction panel and the adsorbed printing medium, and ensuring the adsorption effect.

[0018] 3. In the present invention, the operating parameters of the air suction port and the airflow in the negative pressure air duct are compared and collected, and the suction volume provided by the air suction port is determined based on the comparison result and compared with the set operating parameters to ensure that the operating effect of the air suction port meets the design requirements and avoid the situation where the actual suction force fails to meet the set requirements due to abnormalities in the air suction port. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0020] Figure 1 The main structural diagram of the present invention is Figure 2 It is a bottom view structural schematic diagram of the present invention Figure 3 Schematic diagram of the control component structure of the present invention Figure 4 It is a system block diagram of the present invention.

[0021] In the figure: 1. air suction panel; 2. box plate; 3. negative pressure air duct; 4. focusing hood; 5. control component; 51. first translation rod; 52. second translation rod; 6. air suction port. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:

[0023] See also Figure 1 - Figure 4 As shown, a suction component of a UV printer includes a suction panel 1, a plurality of box panels 2 are fixedly installed below the suction panel 1, wherein the inner wall of the box panel 2 is provided with a plurality of slide grooves, and the suction panel 1 is provided with a plurality of holes, so that the suction panel 1 can suck air through the holes, and a suction port 6 is arranged below the suction panel 1, and the suction port 6 is fixedly installed with the box panel 2 through a fixing frame, and a negative pressure air duct 3 is fixedly installed on the lower surface of the suction port 6, and the gas extracted by the suction port 6 is discharged through the negative pressure air duct 3; A control assembly 5 is slidably connected in the slide groove inside the box plate 2, and the control assembly 5 includes a first translation rod 51 and a second translation rod 52, wherein the first translation rod 51 and the second translation rod 52 each have two symmetrically arranged groups, the two groups of first translation rods 51 are slidably connected in the slide groove of the box plate 2, and slide grooves are also provided on the opposite sides of the two groups of first translation rods 51, and both ends of the two groups of second translation rods 52 are respectively slidably connected in the slide grooves on the two groups of first translation rods 51, and the first translation rod 51 and the second translation rod 52 are driven by a motor to realize movement in the slide groove; A focusing hood 4 is fixedly mounted on the outer wall of the air suction port 6. The top of the focusing hood 4 is fixedly connected to the lower surface of the control component 5. The focusing hood 4 is made of an elastic and flexible material. Embodiment 2:

[0024] See also Figure 1 - Figure 4 As shown, an air volume control device for a UV printer includes a controller, which is connected to an air suction port 6, a first translation rod 51 and a second translation rod 52. The controller also includes an air volume control system for the UV printer, and the air volume control system includes an effective area interaction unit, an air volume adjustment control unit, a negative pressure environment detection unit and an air suction effect feedback unit; The controller obtains the manually input control instruction, controls the first translation rod 51 and the second translation rod 52, and moves the first translation rod 51 and the second translation rod 52 to the set position, so that the focusing cover 4 controls the negative pressure environment in the area covered by the first translation rod 51 and the second translation rod 52, thereby adjusting the suction area of ​​the suction panel 1; The effective area interaction unit obtains the positions of the first translation rod 51 and the second translation rod 52 through the controller, and calculates the area of ​​the suction area according to the positions of the first translation rod 51 and the second translation rod 52. At the same time, the effective area interaction unit obtains the type of printing medium to be adsorbed, searches through the database according to the type of printing medium to be adsorbed, and obtains the adsorption coefficient of the printing medium. The effective area interaction unit sends the adsorption coefficient and the area of ​​the suction area to the air volume adjustment control unit, wherein the adsorption coefficient of the printing medium is the suction force required to fix the unit area of ​​the printing medium by adsorption; The air volume regulation control unit calculates the required air suction volume by multiplying the adsorption coefficient and the area of ​​the suction area, and records the air suction volume as the minimum air suction volume. The air volume regulation control unit controls the operating power of the suction port 6 through the controller so that the air suction volume of the suction port 6 is maintained at the minimum air suction volume. Embodiment three:

[0025] See also Figure 1 - Figure 4 As shown, the negative pressure environment detection unit obtains the minimum suction volume through the air volume adjustment control unit, and at the same time, the negative pressure environment detection unit detects the negative pressure inside the focusing cover 4 and records it as the internal negative pressure. The negative pressure environment detection unit obtains the area of ​​the suction area through the effective area interaction unit; The negative pressure environment detection unit records the area of ​​the suction area as S, the minimum suction volume as F, and the internal negative pressure as P. The negative pressure environment detection unit generates the negative pressure retention rate B through formula analysis. The negative pressure environment detection unit compares the negative pressure maintenance rate B with the preset maintenance rate threshold. If the negative pressure maintenance rate B is less than the preset negative pressure maintenance rate threshold, a negative pressure abnormality signal is generated. If the negative pressure maintenance rate B is greater than or equal to the preset negative pressure maintenance rate threshold, a negative pressure normal signal is generated. After generating the negative pressure abnormality signal, the negative pressure environment detection unit reminds through an audible and visual alarm, thereby reminding the management personnel to check the placement position of the printing medium or the sealing of the focusing cover 4; After the negative pressure environment detection unit generates a negative pressure abnormality signal, the negative pressure abnormality signal is sent to the air volume adjustment control unit. After receiving the negative pressure abnormality signal, the air volume adjustment control unit increases the minimum air suction volume and controls the air suction port 6 according to the increased minimum air suction volume. Each time the air volume adjustment control unit increases the minimum air suction volume, it increases according to a preset increase ratio. Embodiment 4:

[0026] See also Figure 1 - Figure 4 As shown, the suction effect feedback unit obtains the minimum suction volume through the air volume adjustment control unit, and detects the air flow velocity in the negative pressure air duct 3 at the same time. The suction effect feedback unit obtains the cross-sectional area of ​​the negative pressure air duct 3 through a preset database, and calculates the product of the cross-sectional area and the air flow velocity to obtain the gas flow in the negative pressure air duct 3. The suction effect feedback unit compares the gas flow in the negative pressure air duct 3 with the minimum suction volume. If the gas flow is less than the minimum suction volume and the difference between the gas flow and the minimum suction volume is outside the preset range, an insufficient suction effect signal is generated. If the gas flow is greater than the minimum suction volume and the difference between the gas flow and the minimum suction volume is outside the preset range, an abnormal suction effect signal is generated. If the difference between the gas flow and the minimum suction volume is within the preset range, a normal suction effect signal is generated. After generating an insufficient suction effect signal or an abnormal suction effect signal, the suction effect feedback unit will sound an alarm through the sound and light alarm device. When an insufficient suction effect signal is generated, an insufficient suction force alarm is generated; when an abnormal suction effect signal is generated, an abnormal suction control alarm is generated.

[0027] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A suction component of a UV printer, characterized in that: A suction assembly for a UV printer comprises a suction panel (1), wherein a plurality of sets of box panels (2) are fixedly mounted below the suction panel (1), wherein the inner wall of the box panel (2) is provided with a plurality of sets of slide grooves, and the suction panel (1) is provided with a plurality of sets of holes, so that the suction panel (1) can suck air through the holes, and a suction port (6) is arranged below the suction panel (1), wherein the suction port (6) is fixedly mounted on the box panel (2) via a fixing frame, and a negative pressure air duct (3) is fixedly mounted on the lower surface of the suction port (6), and gas extracted by the suction port (6) is discharged through the negative pressure air duct (3); A control assembly (5) is slidably connected in the slide groove inside the box plate (2), and the control assembly (5) comprises a first translation rod (51) and a second translation rod (52), wherein the first translation rod (51) and the second translation rod (52) each have two symmetrically arranged groups, the two groups of the first translation rods (51) are slidably connected in the slide groove of the box plate (2), and the two groups of the first translation rods (51) are also provided with a slide groove on the opposite side, and the two ends of the two groups of the second translation rods (52) are respectively slidably connected in the slide grooves on the two groups of the first translation rods (51); A focusing hood (4) is fixedly mounted on the outer wall of the air suction port (6), and the top end of the focusing hood (4) is fixedly connected to the lower surface of the control component (5).

2. An air volume control device for a UV printer, suitable for the air suction component of a UV printer according to claim 1, characterized in that: The controller is connected to the air suction port (6), the first translation rod (51) and the second translation rod (52), and the controller also includes an air volume control system of the UV printer, and the air volume control system includes an effective area interaction unit, an air volume adjustment control unit, a negative pressure environment detection unit and an air suction effect feedback unit; The controller is capable of controlling the first translation rod (51) and the second translation rod (52) to move the first translation rod (51) and the second translation rod (52) to a set position.

3. The air volume control device of a UV printer according to claim 2, characterized in that: The effective area interaction unit is used to calculate the area and adsorption coefficient of the suction area to obtain the minimum suction volume and send it to the air volume adjustment control unit; The air volume adjustment control unit calculates the minimum air volume through the area of ​​the air suction region and the adsorption coefficient, and controls the air suction port (6) through the minimum air suction volume; The negative pressure environment detection unit detects the negative pressure environment in the focusing hood (4), obtains the negative pressure retention rate, performs threshold analysis on the negative pressure retention rate, and generates a negative pressure abnormality signal or a negative pressure normal signal; The suction effect feedback unit obtains the gas flow rate, compares the gas flow rate with the minimum suction volume, and confirms the suction effect.

4. The air volume control device of a UV printer according to claim 2, characterized in that: The method used by the effective area interaction unit to measure the area of ​​the suction area is: The effective area interaction unit acquires the positions of the first translation rod (51) and the second translation rod (52) through a controller, and calculates the area of ​​the air suction area according to the positions of the first translation rod (51) and the second translation rod (52); The method for obtaining the adsorption coefficient by the active area interaction unit is: The active area interaction unit obtains the type of printing medium to be adsorbed, searches through a database according to the type of printing medium to be adsorbed, and obtains the adsorption coefficient of the printing medium.

5. The air volume control device of a UV printer according to claim 2, characterized in that: The air volume adjustment control unit calculates the required air volume by multiplying the adsorption coefficient and the area of ​​the air suction region, and records the air volume as the minimum air volume.

6. The air volume control device of a UV printer according to claim 2, characterized in that: The negative pressure environment detection unit obtains the minimum air suction volume through the air volume adjustment control unit. At the same time, the negative pressure environment detection unit detects the negative pressure inside the focusing hood (4) and records it as the internal negative pressure. The negative pressure environment detection unit obtains the area of ​​the air suction area through the effective area interaction unit.

7. The air volume control device of a UV printer according to claim 6, characterized in that: The negative pressure environment detection unit records the area of ​​the suction area as S, the minimum suction volume as F, and the internal negative pressure as P. The negative pressure environment detection unit generates a negative pressure retention rate B through formula analysis. .

8. The air volume control device of a UV printer according to claim 7, characterized in that: The negative pressure environment detection unit compares the negative pressure maintenance rate B with the preset maintenance rate threshold. If the negative pressure maintenance rate B is less than the preset negative pressure maintenance rate threshold, a negative pressure abnormal signal is generated; if the negative pressure maintenance rate B is greater than or equal to the preset negative pressure maintenance rate threshold, a negative pressure normal signal is generated.

9. The air volume control device of a UV printer according to claim 8, characterized in that: After the negative pressure environment detection unit generates a negative pressure abnormality signal, the negative pressure abnormality signal is sent to the air volume adjustment control unit. After receiving the negative pressure abnormality signal, the air volume adjustment control unit increases the minimum air suction volume and controls the air suction port (6) according to the increased minimum air suction volume. Each time the air volume adjustment control unit increases the minimum air suction volume, it increases it according to a preset increase ratio.

10. The air volume control device of a UV printer according to claim 2, characterized in that: The suction effect feedback unit obtains the minimum suction volume through the air volume adjustment control unit, and at the same time detects the air flow velocity in the negative pressure air duct (3). The suction effect feedback unit obtains the cross-sectional area of ​​the negative pressure air duct (3) through a preset database, and calculates the product of the cross-sectional area and the air flow velocity to obtain the gas flow in the negative pressure air duct (3).

11. The air volume control device of a UV printer according to claim 10, characterized in that: The suction effect feedback unit compares the gas flow rate in the negative pressure air duct (3) with the minimum suction volume. If the gas flow rate is less than the minimum suction volume and the difference between the gas flow rate and the minimum suction volume is outside a preset range, an insufficient suction effect signal is generated. If the gas flow rate is greater than the minimum suction volume and the difference between the gas flow rate and the minimum suction volume is outside the preset range, an abnormal suction effect signal is generated. If the difference between the gas flow rate and the minimum suction volume is within the preset range, a normal suction effect signal is generated.

12. The air volume control device of a UV printer according to claim 11, characterized in that: After generating an insufficient suction effect signal or an abnormal suction effect signal, the suction effect feedback unit issues an alarm through the sound and light alarm device. When generating an insufficient suction effect signal, an insufficient suction force alarm is generated; when generating an abnormal suction effect signal, an abnormal suction control alarm is generated.

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