A spiral direct printing device

The turntable design of the spiral direct printing device enables the loading of cylindrical workpieces and the printing process to proceed synchronously, solving the problem of idle inkjet mechanism and improving printing efficiency.

CN119550737BActive Publication Date: 2025-09-05SHEN FA ENG CO LTD (GUANGZHOU)
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Patent Information

Application Number
CN202411847938.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-09-05
Estimated Expiration
2044-12-16

AI Technical Summary

Technical Problem

In existing automatic printing devices for cylindrical workpieces, the inkjet mechanism has idle time during the workpiece loading and unloading process, which affects printing efficiency.

Method used

A spiral direct printing device is used, and the workpieces loaded on the first loading assembly and the second loading assembly are alternately delivered to the feeding and discharging mechanism and the inkjet mechanism through the rotation of the turntable body, so that the workpiece loading and printing can be carried out simultaneously.

Benefits of technology

Reduce the idle time of the inkjet mechanism, improve printing efficiency, and ensure the continuity of workpiece loading and printing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application discloses a spiral direct printing device, which includes a feeding and discharging mechanism, an inkjet mechanism, and a turntable mechanism. The feeding and discharging mechanism is used to drive the workpiece to feed and discharge; the inkjet mechanism is used to spray ink onto the workpiece; the turntable mechanism is located between the feeding and discharging mechanism and the inkjet mechanism, and includes a rotatable turntable body and a first loading assembly and a second loading assembly provided on the turntable body, the first loading assembly and the second loading assembly being used to load the workpiece. The feeding and discharging mechanism installs the workpiece to any one of the first loading assembly and the second loading assembly, and the turntable body rotates so that the loading assembly loaded with the workpiece faces the inkjet mechanism, and the inkjet mechanism performs the printing operation; at the same time, the other loading assembly rotates to a position facing the feeding and discharging mechanism, thereby completing the installation of the other workpiece; the two workpieces can be operated at the same time, so that the loading and printing operations of the workpieces are performed simultaneously, reducing the idle time of the inkjet mechanism and improving printing efficiency.
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Description

Technical Field

[0001] The present application relates to the technical field of printing equipment, and in particular to a spiral direct printing device. Background Art

[0002] Currently, in automatic printing devices for cylindrical workpieces, the workpiece is first transported and loaded onto a fixture. The loaded workpiece is then aligned with the inkjet mechanism, which then sprays ink onto the workpiece to complete the printing process. Understandably, during the extended period of time while the workpiece is being loaded, the inkjet mechanism is unable to perform inkjet operations, resulting in idle time for the inkjet mechanism, which impacts printing efficiency.

[0003] Similarly, when a workpiece is finished printing, the inkjet mechanism immediately stops spraying ink. At this time, the current workpiece needs to be unloaded and other workpieces need to be loaded. The inkjet mechanism can only resume spraying ink after the long unloading and loading process is completed, further affecting printing efficiency. Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a spiral direct printing device that can alternately allow workpieces loaded on a first loading assembly and a second loading assembly to reach a feeding and discharging mechanism and an inkjet mechanism through the rotation of a turntable body.

[0005] According to the spiral direct printing device of the first aspect embodiment of the present application, the spiral direct printing device includes a feeding and discharging mechanism, an inkjet mechanism and a turntable mechanism, the feeding and discharging mechanism is used to drive the workpiece to feed and discharge; the inkjet mechanism is used to spray ink onto the workpiece; the turntable mechanism is located between the feeding and discharging mechanism and the inkjet mechanism, and includes a rotatable turntable body and a first loading assembly and a second loading assembly arranged on the turntable body, the first loading assembly and the second loading assembly are used to load the workpiece; when the turntable body drives the first loading assembly toward the feeding and discharging mechanism, the second loading assembly is toward the inkjet mechanism, and when the second loading assembly is toward the feeding and discharging mechanism, the first loading assembly is toward the inkjet mechanism.

[0006] According to the spiral direct printing device of the embodiment of the present application, there are at least the following beneficial effects: the feeding and discharging mechanism installs the received workpiece into any one of the first loading assembly and the second loading assembly, the turntable body rotates so that the loading assembly loaded with the workpiece faces the inkjet mechanism, and the inkjet mechanism performs the printing work; at the same time, the other loading assembly rotates to a position facing the feeding and discharging mechanism, thereby completing the installation of other workpieces; the two workpieces can be operated at the same time, so that the loading and printing work of the workpieces can be carried out at the same time, reducing the idle time of the inkjet mechanism and improving printing efficiency.

[0007] According to some embodiments of the present application, the first loading assembly and the second loading assembly both include a tooling and a driver, the tooling is used to load the workpiece, and the driver is used to drive the tooling to rotate the workpiece, and the tooling of the first loading assembly and the second loading assembly are oriented in opposite directions.

[0008] According to some embodiments of the present application, the inkjet mechanism includes a guide assembly and an inkjet assembly, the guide assembly includes a support rail, the support rail includes a lifting portion, the height of the lifting portion gradually increases, the inkjet assembly includes a plurality of movable units for inkjet, each of the movable units is movably carried on the support rail, and the movable unit moves to the lifting portion to avoid the large diameter part of the tooling.

[0009] According to some embodiments of the present application, the guide assembly includes a first slide rail, the inkjet assembly includes a supporting component capable of moving along the first slide rail, and each of the moving units is movably disposed on the supporting component.

[0010] According to some embodiments of the present application, the spiral direct printing device also includes a conveying mechanism, which includes a first conveying component and a second conveying component. The first conveying component is used to input the workpiece into the spiral direct printing device, and the second conveying component is used to output the workpiece from the spiral direct printing device.

[0011] According to some embodiments of the present application, the conveying mechanism further includes a steering assembly, which is disposed on the first conveying assembly. The steering assembly includes a first adsorption component, and adjusts the direction of the workpiece on the first conveying assembly through the first adsorption component.

[0012] According to some embodiments of the present application, the feed and discharge mechanism includes a receiving component and a transfer component. The feed and discharge mechanism is connected to the conveying mechanism. The receiving component is used to receive the workpiece to be processed and the processed workpiece. The transfer component is used to load the workpiece to be processed on the tooling and to transfer the processed workpiece to the receiving component.

[0013] According to some embodiments of the present application, the transfer assembly includes a discharge clamp and a feed push rod. The feed push rod pushes the workpiece in the receiving assembly by moving to drive the workpiece to be loaded on the tooling. The discharge clamp clamps the workpiece loaded on the tooling through opening and closing movements to drive the workpiece to be transported back to the receiving assembly.

[0014] According to some embodiments of the present application, the spiral direct printing device further includes a moisturizing mechanism, which includes a plurality of moisturizing pads, and the moisturizing pads are used to contact the nozzle of the motion unit.

[0015] According to some embodiments of the present application, the spiral direct printing device further includes a color mark positioning mechanism, the color mark positioning mechanism includes a positioning sensor, and the positioning sensor is used to sense the color mark on the surface of the workpiece.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the technical solutions disclosed in this application and constitute a part of the specification. Together with the embodiments disclosed in this application, they are used to explain the technical solutions disclosed in this application and do not constitute a limitation on the technical solutions disclosed in this application.

[0018] Figure 1 This is a schematic structural diagram of a spiral direct printing device according to an embodiment of the present application;

[0019] Figure 2 This is a schematic structural diagram of a spiral direct printing device without the outer shell according to an embodiment of the present application;

[0020] Figure 3 This is a schematic structural diagram of an inkjet housing of an inkjet mechanism in a spiral direct printing device according to an embodiment of the present application after it is opened;

[0021] Figure 4 This is a structural schematic diagram of an inkjet mechanism of a spiral direct printing device according to an embodiment of the present application, with the inkjet housing removed;

[0022] Figure 5 This is a schematic structural diagram of a turntable mechanism in a spiral direct printing device according to an embodiment of the present application;

[0023] Figure 6 This is a structural diagram of a conveying mechanism in a spiral direct printing device according to an embodiment of the present application;

[0024] Figure 7 This is a structural diagram of a feeding and discharging mechanism in a spiral direct printing device according to an embodiment of the present application;

[0025] Figure 8 This is a structural schematic diagram of a moisturizing mechanism in a spiral direct printing device according to an embodiment of the present application;

[0026] Figure 9 This is a structural diagram of a color mark positioning mechanism in a spiral direct printing device according to an embodiment of the present application;

[0027] Figure 10 This is a schematic structural diagram of a curing mechanism in a spiral direct printing device according to an embodiment of the present application;

[0028] Figure 11 It is a structural schematic diagram of a nozzle mechanism in a spiral direct printing device according to an embodiment of the present application.

[0029] Reference numerals:

[0030] Inkjet mechanism 100; tooling 101;

[0031] Guide assembly 200; lifting portion 201; first straight portion 202; second straight portion 203; first slide rail 204;

[0032] Inkjet assembly 300; support component 301; mounting component 302; nozzle 303; rolling component 304; elastic component 305; inkjet housing 306; support plate 307;

[0033] Height measuring device 401; Light detection device 402; Anti-collision protection device 403;

[0034] Feeding and discharging mechanism 500; feeding and discharging trough 501; discharging clamp 502; feeding push rod 503; second adsorption component 504;

[0035] Turntable mechanism 600; turntable body 601; driver 602; reducer 603;

[0036] Conveying mechanism 700; first conveying assembly 701; second conveying assembly 702; first adsorption component 703;

[0037] Moisturizing mechanism 800; Moisturizing pad 801;

[0038] Color mark positioning mechanism 901; positioning sensor 902; curing mechanism 903; LED light 904; nozzle mechanism 905; nozzle component 906;

[0039] Housing 1000; touch screen 1001; operating console 1002; three-color indicator light 1003; exhaust fan 1004; industrial computer 1005; negative pressure system 1006. DETAILED DESCRIPTION

[0040] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0041] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0042] In the description of this application, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0043] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0044] In the description of this application, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0045] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides a spiral direct printing device, which includes a feed and discharge mechanism 500, an inkjet mechanism 100, and a turntable mechanism 600. The feed and discharge mechanism 500 transports the workpiece to the turntable mechanism 600, thereby completing the workpiece loading process; the turntable mechanism 600 transfers the workpiece to the position of the inkjet mechanism 100 by rotating, and the inkjet mechanism 100 completes the printing process.

[0046] In some examples, the feed / unload mechanism 500 is used to drive the workpiece feeding and unloading. During the feeding process, the workpiece is loaded onto the turntable mechanism 600 under the action of the feed / unload mechanism 500, and the workpiece can rotate on the turntable mechanism 600; during the unloading process, the workpiece is removed from the turntable mechanism 600 under the action of the feed / unload mechanism 500.

[0047] In some examples, such as Figure 3 and Figure 4As shown, the inkjet mechanism 100 is used to spray ink onto a workpiece. The inkjet mechanism 100 includes a guide assembly 200 and an inkjet assembly 300. The inkjet assembly 300 moves across the rotating workpiece and sprays ink onto the rotating workpiece, thereby completing the printing process. The turntable mechanism 600 is provided with a fixture 101. As can be understood, the workpiece is mounted on the fixture 101 and rotated by the fixture 101. The inkjet assembly 300 avoids the large diameter portion of the fixture 101 through the guide assembly 200, preventing interference between the inkjet assembly 300 and the fixture 101, thereby ensuring normal printing.

[0048] Furthermore, the workpiece involved in this mechanism is a cylindrical workpiece with a small diameter. Specifically, the diameter of the workpiece is less than 30 mm.

[0049] At the same time, the tooling 101 involved in this mechanism is roughly formed into a columnar structure. The tooling 101 can be inserted into the inner cavity of the workpiece and fit tightly with the inner cavity of the workpiece, so that the tooling 101 and the workpiece form a whole. Specifically, the part of the tooling 101 that is inserted into the workpiece is called the loading part. It can be understood that the diameter of the workpiece is relatively small, and accordingly, the diameter of the tooling 101 is also relatively small. In addition, the tooling 101 needs to be connected to a rotation drive device to ensure that the tooling 101 rotates together with the workpiece. However, the tooling 101 is subject to the structural limitations of the rotation drive device and must have a large diameter portion for connecting to the rotation drive device, which is called a connecting portion.

[0050] In tooling 101, the diameter of the loading portion where the workpiece is located is smaller than the diameter of the connecting portion, and the inkjet assembly 300 needs to be close to the workpiece surface for printing. When the inkjet assembly 300 reaches the larger-diameter connecting portion, the inkjet assembly 300, or the ink carriage, in a conventional inkjet mechanism 100 cannot avoid the larger-diameter connecting portion, which can easily cause interference between the inkjet assembly 300 and the connecting portion. Therefore, conventional inkjet mechanisms 100 are unable to print workpieces with diameters less than 30 mm. The present application utilizes a guide assembly 200 to avoid the connecting portion of tooling 101, thereby adapting to printing on smaller-diameter workpieces.

[0051] In some examples, such as Figure 3 and Figure 4 As shown, the guide assembly 200 includes a support rail, and the support rail includes a lifting portion 201. The guide assembly 200 uses the lifting portion 201 to force the inkjet assembly 300 to avoid the large-diameter connection portion.

[0052] Furthermore, the inkjet assembly 300 includes several inkjet motion units. It is worth noting that each motion unit is filled with a different color of ink, thereby printing a different color pattern on the workpiece surface. Due to the diverse pattern requirements on the workpiece surface, any color may be printed on the workpiece surface near a connection. Therefore, each motion unit is capable of moving to a position on the workpiece surface near a connection.

[0053] Each motion unit is supported by a support rail, and a lifting portion 201 raises the height of the support rail. The position of the lifting portion 201 corresponds to the connection portion of the tooling 101. When the motion unit reaches the position of the lifting portion 201, the motion unit raises its height to avoid the connection portion. Specifically, the motion units are arranged horizontally, side by side, and independently of each other. Each motion unit can move up and down independently, allowing each motion unit to reach a position on the workpiece surface close to the connection portion, meeting the requirements of multi-color printing.

[0054] In some examples, the guide assembly 200 includes a first slide rail 204 that is horizontally disposed, and the inkjet assembly 300 includes a support component 301 that is slidably connected to the first slide rail 204 and moves along the first slide rail 204 .

[0055] In some examples, the support rail further includes a first straight portion 202 and a second straight portion 203. The lifting portion 201 connects the first straight portion 202 and the second straight portion 203. The height of the first straight portion 202 is less than the height of the second straight portion. The lifting portion 201 gradually increases in height from the first straight portion 202 to the second straight portion 203. It is understood that the lifting portion 201 is arranged at an angle.

[0056] The second linear portion 203 is located at the top of the connection portion of the tooling 101, while the first linear portion 202 is located away from the tooling 101 and the workpiece. The motion unit moves from the first linear portion 202 to the lifting portion 201, clearing the connection portion of the tooling 101 on the lifting portion 201. Upon reaching the lifting portion 201, the motion unit has completed printing and begins to move away from the workpiece surface. After reaching the lifting portion 201, the motion unit moves further to the second linear portion 203.

[0057] In some examples, such as Figure 6 and Figure 7 As shown, the motion unit includes a mounting component 302. Specifically, the mounting component 302 includes a horizontal portion and a vertical portion connected to each other.

[0058] The horizontal portion is provided with an inkjet nozzle 303, and a first guide assembly is provided between the vertical portion and the support member 301. Specifically, the first guide assembly can be a slide rail mechanism. The first guide assembly is used to guide the movement unit to move up and down relative to the support member 301, that is, to move in the vertical direction. This ensures that the movement unit can also move up and down along the lifting portion 201 during horizontal movement, thereby avoiding the connection portion of the tooling 101.

[0059] Specifically, mounting component 302 is provided with a rolling component 304. As will be appreciated, rolling component 304 is located on the vertical portion of mounting component 302 and is in rolling contact with the support rail. When the motion unit moves horizontally along the support rail, rolling friction is generated between mounting component 302 and the support rail via rolling component 304, thereby ensuring smooth horizontal movement of mounting component 302. Furthermore, rolling component 304 utilizes a bearing, which is connected to mounting component 302 via a rotating shaft.

[0060] In some examples, the motion unit further includes an elastic component 305, through which the mounting component 302 is connected to the support component 301. Specifically, when the mounting component 302 is supported on the first straight portion 202 via the rolling component 304, the length of the elastic component 305 is relatively long, and the elastic force exerted by the elastic component 305 on the mounting component 302 is relatively small; when the mounting component 302 is supported on the lifting portion 201, the length of the elastic component 305 gradually decreases, and the elastic force exerted by the elastic component 305 on the mounting component 302 gradually increases; it is understood that when the mounting component 302 is supported on the second straight portion 203, the length of the elastic component 305 is relatively short, and the elastic force exerted by the elastic component 305 on the mounting component 302 is relatively large, thereby ensuring that the rolling component 304 always maintains close rolling contact with the support rail, preventing the rolling component 304 from detaching from the support rail.

[0061] Furthermore, when the moving unit descends from the second straight portion 203 along the lifting portion 201 to the first straight portion 202 , the elastic component 305 can drive the moving unit to return to a larger length. Specifically, the elastic component 305 is a spring.

[0062] In some examples, the mounting member 302 is provided with a connecting rod, and the support member 301 is connected with a positioning member, specifically, the entry member is kept horizontal.

[0063] The positioning component is equipped with guide structures, the number of which is equal to the number of connecting rods. Specifically, the guide structures are formed as hole structures, and the shape of the hole structures corresponds to the outer diameter of the connecting rods. The connecting rods are inserted into the guide structures and can move up and down within the guide structures. The guide structures guide the connecting rods in vertical movement, preventing horizontal shaking of the connecting rods. Because the connecting rods are mounted on the mounting component 302, the guide structures also guide the mounting component 302 in vertical movement.

[0064] Specifically, when the elastic component 305 is a spring, the elastic component 305 is sleeved on the connecting rod.

[0065] In some examples, the inkjet mechanism 100 further includes a support plate 307 , which is fixed in position and used to connect to the guide assembly 200 .

[0066] A second guide assembly is provided between the support plate 307 and the guide assembly 200. Specifically, the second guide assembly can be implemented as a slide rail or slider mechanism. The guide assembly 200 can be moved up and down relative to the support plate 307 via the second guide assembly, thereby adjusting the height of the guide assembly 200, and thus adjusting the height of the inkjet assembly 300, to accommodate the workpiece mounted on the tooling 101.

[0067] In some examples, the inkjet assembly 300 further includes an inkjet housing 306, which is disposed on the support component 301 and covers each moving unit in the inner cavity. It is understood that the inkjet housing 306 plays a certain protective role for each moving unit.

[0068] The inkjet housing 306 is provided with a height measuring device 401 , which is used to sense the height of the inkjet assembly 300 and guide the height adjustment process of the inkjet assembly 300 .

[0069] At the same time, a secondary ink path structure is fixedly provided inside the inkjet housing 306 , which is connected to each nozzle 303 and delivers ink of different colors to each nozzle 303 to ensure the printing requirements of different colors for the workpiece.

[0070] In some examples, the inkjet housing 306 is provided with a light detection device 402, which is used to provide light to the workpiece to complete the detection process.

[0071] In some examples, the inkjet housing 306 is provided with an anti-collision protection device 403 . The anti-collision protection device 403 is formed as a plate-shaped structure and is located on a side of the inkjet assembly 300 .

[0072] Specifically, when the inkjet assembly 300 moves from the first straight portion 202 to the second straight portion 203, the anti-collision protection device 403 is located in front of the inkjet assembly 300. If an obstacle unexpectedly appears in the movement path, the obstacle may cause a certain impact on the anti-collision protection device 403, but will not affect the inkjet printer and the various moving units inside.

[0073] In some examples, such as Figure 5 As shown, the turntable mechanism 600 is located between the feed and discharge mechanism 500 and the inkjet mechanism 100, and includes a turntable body 601 and a first loading assembly and a second loading assembly, wherein the first loading assembly and the second loading assembly are disposed on top of the turntable body 601. The turntable body 601 is capable of rotating, and drives the first loading assembly and the second loading assembly to rotate together.

[0074] Furthermore, the first loading assembly and the second loading assembly are provided with a tool 101 for loading the workpiece. The tool 101 is formed into a rod-shaped structure. It can be understood that the workpiece is loaded on the tool 101 in a sleeve manner.

[0075] Furthermore, the turntable body 601 in the turntable mechanism 600 utilizes a vacuum rotary table, and holes are provided on the surface of the tooling 101 to connect to the vacuum rotary table. When a workpiece is placed on the tooling 101, the vacuum rotary table extracts the air between the tooling 101 and the workpiece through the holes in the tooling 101, creating a vacuum environment between the two. This ensures a strong connection between the workpiece and the tooling 101 while preventing damage to either the workpiece or the tooling 101.

[0076] It is worth noting that the first loading assembly and the second loading assembly have different orientations. When the turntable body 601 rotates to drive the first loading assembly toward the feeding and unloading mechanism 500, the second loading assembly is directed toward the inkjet mechanism 100. Because the first loading assembly and the second loading assembly can simultaneously load workpieces, the workpieces of the first loading assembly are being fed or unloaded while the workpieces of the second loading assembly are being inkjet printed.

[0077] Similarly, when the turntable body 601 rotates to drive the second loading assembly toward the feeding and unloading mechanism 500, the first loading assembly is directed toward the inkjet mechanism 100. Since the first loading assembly and the second loading assembly can simultaneously load workpieces, the workpieces of the second loading assembly are being fed or unloaded while the workpieces of the first loading assembly are being inkjet printed.

[0078] In some examples, the first loading assembly and the second loading assembly each include a tool 101 and a driver 602. The driver 602 is configured to rotate the corresponding tool 101, thereby rotating the workpiece. The driver 602 is connected to the tool 101 via a speed reducer 603, thereby adjusting the tool 101 to a suitable rotational speed.

[0079] Furthermore, the first loading assembly and the second loading assembly are arranged side by side, and the tooling 101 of the first loading assembly and the tooling 101 of the second loading assembly are oriented in opposite directions, that is, the angle between the tooling 101 of the first loading assembly and the tooling 101 of the second loading assembly is about 180°.

[0080] It is understood that the feed / discharge mechanism 500, the turntable mechanism 600, and the inkjet mechanism 100 are arranged in a straight line. When the turntable body 601 rotates 180°, the first and second loading assemblies swap positions. The inkjet mechanism 100 cannot print during this swap. However, the swapping of the first and second loading assemblies is relatively fast, preventing the inkjet mechanism 100 from being idle for extended periods of time. Therefore, the turntable mechanism 600 can improve the printing efficiency of the spiral direct printing device.

[0081] In some examples, such as Figure 6 As shown, the spiral direct printing device further includes a conveying mechanism 700, which includes a first conveying assembly 701 and a second conveying assembly 702. The first conveying assembly 701 and the second conveying assembly 702 are stacked, with the first conveying assembly 701 on top of the second conveying assembly 702.

[0082] Furthermore, the first conveying assembly 701 and the second conveying assembly 702 are both used to convey workpieces. It can be understood that there is a certain distance between the first conveying assembly 701 and the second conveying assembly 702 to facilitate accommodating the workpieces.

[0083] Specifically, the first conveyor assembly 701 is used to input the workpiece into the spiral direct printing device, and the second conveyor assembly 702 is used to output the workpiece from the spiral direct printing device. The conveyor mechanism 700 is interconnected with the feed / discharge mechanism 500. The first conveyor assembly 701 conveys the workpiece to the feed / discharge mechanism 500, completing the workpiece feeding. After the workpiece is printed, the feed / discharge mechanism 500 re-transmits the workpiece to the second conveyor assembly 702 and outputs the workpiece from the device.

[0084] In addition, the first conveying assembly 701 and the second conveying assembly 702 both adopt a conveyor belt structure.

[0085] In some examples, the conveying mechanism 700 further includes a steering assembly, which is disposed on top of the first conveying assembly 701 and is used to perform a steering operation on the workpiece carried by the first conveying assembly 701 .

[0086] The steering assembly includes a first suction component 703 and a corresponding bracket. The first suction component 703 is connected to the bracket via a third guide assembly. The first suction component 703 adjusts its height under the influence of the third guide assembly. It lowers to approach and absorb the workpiece. While still absorbing the workpiece, the first suction component 703 raises its height to release the workpiece from the first conveying assembly 701. Specifically, the first suction component 703 utilizes a suction cup.

[0087] In addition, the first adsorption component 703 is connected to the third guide assembly through a corresponding rotating mechanism, so that the first adsorption component 703 can drive the workpiece to rotate, thereby completing the turning of the workpiece.

[0088] In some examples, such as Figure 7 As shown, the feeding and discharging mechanism 500 includes a receiving component and a transfer component. The feeding and discharging mechanism 500 is connected to the conveying mechanism 700. The receiving component is used to receive the workpiece to be processed and the workpiece after processing.

[0089] The receiving assembly includes a feed and discharge trough 501, which comprises a feed trough and a discharge trough connected to each other and arranged in parallel. The first conveyor assembly 701 in the conveyor mechanism 700 transports workpieces to the feed trough, from which they are then transported to the turntable mechanism 600. The processed parts are first transported from the turntable mechanism 600 to the discharge trough, and then from there to the second conveyor assembly 702. The feed and discharge trough 501 serves as a connecting structure between the conveyor mechanism 700 and the turntable mechanism 600, temporarily storing workpieces.

[0090] Furthermore, the receiving assembly further comprises a corresponding bracket, and the feed chute 501 is connected to the bracket via a corresponding fourth guide assembly. The feed chute 501 is adjusted in horizontal position under the action of the fourth guide assembly.

[0091] In addition, the transfer assembly is used to load the workpiece to be processed onto the tooling 101 on the turntable mechanism 600 , and is also used to transfer the processed workpiece to the inlet and outlet trough 501 .

[0092] In some examples, the transfer assembly includes a discharge jaw 502 and a feed push rod 503 , wherein the discharge jaw 502 and the feed push rod 503 are both movably disposed on corresponding brackets.

[0093] Furthermore, the corresponding bracket is provided with a support arm capable of horizontal movement on the bracket. The discharge clamp 502 and feed push rod 503 are also provided on the support arm and capable of horizontal movement on the support arm. Specifically, horizontal movement is achieved between the support arm and the bracket via a slide rail and slider mechanism. Horizontal movement is also achieved between the discharge clamp 502 and the support arm, and between the feed push rod 503 and the support arm via a slide rail and slider mechanism. The discharge clamp 502 and feed push rod 503 are located on the same slide rail and slider mechanism.

[0094] Therefore, the discharge jaw 502 and the feed push rod 503 can move independently relative to the support arm. At the same time, when the support arm moves horizontally relative to the bracket, the discharge jaw 502 and the feed push rod 503 move as a whole. The support arm then drives the discharge jaw 502 and the feed push rod 503 to adjust their positions as a whole, and the discharge jaw 502 and the feed push rod 503 can also be fine-tuned independently.

[0095] At the same time, the feed push rod 503 is aligned with the feed chute. When the workpiece is in the feed chute, the feed push rod 503 moves along the extension direction of the feed chute, thereby pushing the workpiece to the tooling 101 of the turntable mechanism 600, completing the loading of the workpiece. When the printed workpiece needs to be discharged from the spiral direct printing device, the discharge clamp 502 clamps the workpiece through an opening and closing movement, thereby placing the workpiece into the discharge chute.

[0096] Specifically, the transfer assembly also includes a suction assembly, which includes a second suction component 504 and a corresponding bracket. The second suction component 504 is connected to the bracket via a connecting structure, with a corresponding fifth guide assembly positioned between the connecting structure and the bracket. The fifth guide assembly enables the connecting structure and the second suction component 504 to move vertically. The second suction component 504 utilizes a suction cup and is used to absorb the finished workpiece from the discharge chute and place it on the second conveyor assembly 702.

[0097] In some examples, such as Figure 8 As shown, the spiral direct printing device further includes a moisturizing mechanism 800 , which is fixed in position and located away from the conveying mechanism 700 , and the height of the moisturizing mechanism 800 is smaller than the nozzle 303 of each moving unit.

[0098] The moisturizing mechanism 800 includes a plurality of moisturizing pads 801, and the number of moisturizing pads 801 is equal to the number of motion units. When the inkjet mechanism 100 moves to the top of the moisturizing mechanism 800 and each nozzle 303 contacts the moisturizing pads 801, the moisturizing pads 801 can moisten the nozzle 303 to prevent clogging of the nozzle 303.

[0099] Furthermore, the moisturizing mechanism 800 also includes a bracket for supporting the moisturizing pads 801, and each moisturizing pad 801 is movably arranged on the bracket. As each moisturizing pad 801 moves, the nozzles 303 of each moving unit are exposed to the outside, making it easy to wipe each nozzle 303.

[0100] In some examples, such as Figure 9 As shown, the spiral direct printing device further includes a color mark positioning mechanism 901 , which is located at the bottom of the tooling 101 of the turntable mechanism 600 .

[0101] The color mark positioning mechanism 901 is used to sense the color mark on the workpiece surface and includes a positioning sensor 902. The tooling 101 can rotate the workpiece. When the workpiece rotates until the color mark area faces the positioning sensor 902, the positioning sensor 902 sends a signal to control the tooling 101 to stop rotating, completing the initial position of the workpiece by detecting the color mark.

[0102] Furthermore, the color mark positioning mechanism 901 further includes a horizontal position adjustment component and a height adjustment component, which are respectively used to adjust the horizontal position and height of the positioning sensor 902 to adapt to the specific position of the workpiece.

[0103] Specifically, the horizontal position adjustment component may adopt a slide rail or slider mechanism, while the height adjustment component may adopt a screw mechanism.

[0104] In some examples, such as Figure 10 As shown, the spiral direct printing device further includes a curing mechanism 903. When the inkjet mechanism 100 performs inkjet operation on the workpiece, the curing mechanism 903 is located on the side of the workpiece and performs LED curing operation on the workpiece with ink attached thereto.

[0105] LED curing can improve product quality, increase production efficiency and economic benefits, comply with environmental protection requirements, and boasts high curing efficiency. The LED curing process is a photochemical reaction, resulting in both the ink and varnish layers exhibiting strong adhesion, durability, and resistance to water, chemical corrosion, abrasion, and aging. LED curing machines have very low energy consumption, significantly reducing production costs. High speeds mean reduced storage costs and financial pressure for raw materials and finished products. The ink curing system used with LED curing machines is solvent-free—a nearly 100% solvent-free formula containing no VOCs—which precisely meets today's environmental protection requirements. The ink dries instantly under the irradiation of the LED curing machine, typically taking only 1 / 10 second to completely dry and adhere to the substrate surface.

[0106] Furthermore, the curing mechanism 903 includes an LED lamp 904, and the LED lamp 904 has corresponding horizontal position adjustment components and height adjustment components. The horizontal position adjustment component can adopt a slide rail or slider mechanism, and the height adjustment component can adopt a screw mechanism.

[0107] In some examples, such as Figure 11 As shown, the spiral direct printing device further includes a nozzle mechanism 905, which is used to receive the end of the workpiece to ensure that the horizontal position of the workpiece is stable.

[0108] The ejection nozzle mechanism 905 includes an ejection nozzle component 906 and a corresponding bracket, wherein the bracket is fixed in position and connected to the ejection nozzle component 906 via a sixth guide assembly. The ejection nozzle component 906 can be horizontally moved by the sixth guide assembly to adapt to the specific position of the workpiece.

[0109] At the same time, the nozzle component 906 includes a spring, which is used to buffer the impact force provided by the workpiece to avoid damage to the workpiece caused by rigid contact between the nozzle component 906 and the workpiece.

[0110] In some examples, the spiral direct printing device further includes a housing 1000 , which is provided with input devices and alarm devices such as a touch screen 1001 , an operating console 1002 , a three-color indicator light 1003 , an exhaust fan 1004 , and a switch.

[0111] In some examples, the interior of the housing 1000 is provided with equipment such as an industrial computer 1005 and a negative pressure system 1006 to regulate the overall printing process of the workpiece.

[0112] In addition, the specific forms of the slide rails and slider mechanisms at various positions may differ to some extent, but all follow the guiding mode in which the slider moves along the axial direction of the slide rail.

[0113] In the actual implementation process, the conveying mechanism 700 conveys the workpiece to the feeding and discharging mechanism 500, and the feeding and discharging mechanism 500 installs the current workpiece on the tooling 101 of the turntable mechanism 600; the turntable mechanism 600 rotates, and the workpiece is driven by the turntable mechanism 600 to rotate into the working range of the inkjet mechanism 100, and the inkjet mechanism 100 prints the workpiece. At the same time, another tooling 101 on the turntable mechanism 600 rotates into the working range of the feeding and discharging mechanism 500, and the feeding and discharging mechanism 500 installs the other workpieces conveyed by the conveying mechanism 700 on This idle tooling 101 enables the inkjet operation and the workpiece loading operation to be performed simultaneously, thereby reducing the idle time of the inkjet mechanism 100 and improving printing efficiency. When the workpiece within the range of the inkjet mechanism 100 is processed, the turntable mechanism 600 rotates again to return the processed workpiece to the working range of the feed and discharge mechanism 500. The feed and discharge mechanism 500 conveys the processed workpiece to the conveying mechanism 700, thereby exporting this device, and the previously loaded workpiece arrives at the inkjet mechanism 100 for inkjet operation, and this cycle is repeated to carry out a batch printing process of multiple workpieces.

[0114] In some optional embodiments, the functions / operations mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the functions / operations involved, the two boxes shown in succession may actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiments presented and described in the flow chart of the present application are provided in an exemplary manner for the purpose of providing a more comprehensive understanding of the technology. The disclosed method is not limited to the operations and logic flows presented herein. Optional embodiments are contemplated in which the order of the various operations is changed and the sub-operations described as a part of a larger operation are performed independently.

[0115] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. A spiral direct printing device, characterized in that: include: A feeding and discharging mechanism, the feeding and discharging mechanism is used to drive the workpiece to be fed in and out; the feeding and discharging mechanism includes a receiving assembly and a transfer assembly, the feeding and discharging mechanism is connected to the conveying mechanism, the receiving assembly is used to receive the workpiece to be processed and the workpiece after processing, the transfer assembly is used to load the workpiece to be processed on the tooling, and to transfer the processed workpiece to the receiving assembly, the transfer assembly includes a discharging clamp and a feeding push rod, the feeding push rod pushes the workpiece in the receiving assembly by moving to drive the workpiece to be loaded on the tooling, and the discharging clamp clamps the workpiece loaded on the tooling by opening and closing movements to drive the workpiece to be transported back to the receiving assembly; An inkjet mechanism for spraying ink onto a workpiece; the inkjet mechanism comprises a guide assembly and an inkjet assembly; the guide assembly comprises a support rail, the support rail comprises a lifting portion, the height of the lifting portion gradually increases; the inkjet assembly comprises a plurality of motion units for spraying ink, each of the motion units being movably supported on the support rail, and the motion units being moved to the lifting portion to avoid the large diameter portion of the tooling; A turntable mechanism, the turntable mechanism is located between the feed and discharge mechanism and the inkjet mechanism, and includes a rotatable turntable body and a first loading assembly and a second loading assembly provided on the turntable body, the first loading assembly and the second loading assembly being used to load workpieces; when the turntable body drives the first loading assembly toward the feed and discharge mechanism, the second loading assembly is directed toward the inkjet mechanism, and when the second loading assembly is directed toward the feed and discharge mechanism, the first loading assembly is directed toward the inkjet mechanism; the first loading assembly and the second loading assembly both include a tooling and a driver, the tooling being used to load the workpiece, the driver being used to drive the tooling to rotate the workpiece, and the tooling of the first loading assembly and the second loading assembly facing opposite directions; The conveying mechanism includes a first conveying component and a second conveying component. The first conveying component is used to input the workpiece into the spiral direct printing device, and the second conveying component is used to output the workpiece from the spiral direct printing device.

2. The spiral direct printing device according to claim 1, characterized in that: The guide assembly includes a first slide rail, the inkjet assembly includes a supporting component that can move along the first slide rail, and each of the moving units is arranged on the supporting component so as to be movable up and down.

3. The spiral direct printing device according to claim 1, characterized in that: The conveying mechanism further includes a steering assembly, which is arranged on the first conveying assembly. The steering assembly includes a first adsorption component, and adjusts the direction of the workpiece on the first conveying assembly through the first adsorption component.

4. The spiral direct printing device according to claim 1, characterized in that: The spiral direct printing device further comprises a moisturizing mechanism, which comprises a plurality of moisturizing pads, and the moisturizing pads are used to contact the nozzle of the motion unit.

5. The spiral direct printing device according to claim 1, characterized in that: The spiral direct printing device further comprises a color mark positioning mechanism, and the color mark positioning mechanism comprises a positioning sensor, and the positioning sensor is used for sensing the color mark on the surface of the workpiece.

Citation Information

Patent Citations

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