Ink jet mechanism applied to small-diameter workpiece

Abstract

The invention discloses an ink jet mechanism applied to a small-diameter workpiece, the ink jet mechanism applied to the small-diameter workpiece comprises a guide assembly and an ink jet assembly, the guide assembly comprises a supporting rail, and the supporting rail comprises a lifting part; the ink jet assembly comprises a plurality of movement units used for ink jet, and when the movement units move to the lifting part, the movement units avoid the large-diameter part of the tool. Each moving unit skims over a workpiece arranged on the tool in a sleeving mode, due to the fact that the tool drives the workpiece to rotate, each moving unit can spray ink on the surface of the workpiece, and therefore printing of the workpiece is completed. The tool is provided with a large-diameter connecting part, a supporting rail of the guide assembly defines a movement path of each movement unit, the supporting rail is provided with a lifting part corresponding to the large-diameter part of the tool, and when the movement units move to the positions of the lifting parts along the supporting rail, the movement units avoid the large-diameter part of the tool. And the movement unit is prevented from being in contact with the large-diameter part of the tool, so that the small-diameter workpiece can be printed.

Description

Technical Field

[0001] The present application relates to the field of printing, and in particular to an inkjet mechanism applied to a workpiece with a small diameter. Background Art

[0002] During the process of surface printing of the cylindrical workpiece, the workpiece needs to be mounted on a fixture, and the fixture drives the workpiece to rotate. The inkjet mechanism can print on the surface of the workpiece when passing through the rotating workpiece.

[0003] When the diameter of the workpiece is small, the part of the tooling used to mount the workpiece also has a smaller diameter accordingly, but the part of the tooling used to connect the rotating drive component needs to have a larger diameter, that is, the outer diameter of the tooling has multiple sizes.

[0004] To ensure the normal progress of the printing process, the inkjet mechanism needs to completely pass through the range of the workpiece during movement, but the larger diameter part of the tooling will hinder the movement of the inkjet mechanism, making small diameter workpieces difficult to fit into the current inkjet mechanism. Summary of the invention

[0005] 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 an inkjet mechanism applied to a small-diameter workpiece, which can avoid the large-diameter part of the tooling through a lifting part on a support rail.

[0006] According to the first aspect of the embodiment of the present application, an inkjet mechanism applied to a small diameter workpiece includes a guide component and an inkjet component, the guide component includes a support rail, the support rail includes a lifting part, the height of the lifting part gradually increases; the inkjet component includes a plurality of movable units for inkjet, each of the movable units is movably carried on the support rail, and when the movable unit moves to the lifting part, the movable unit avoids the large diameter part of the tooling.

[0007] The inkjet mechanism applied to small-diameter workpieces according to the embodiments of the present application has at least the following beneficial effects: the inkjet assembly includes a plurality of moving units, each of which passes over the workpiece mounted on the tooling, and since the tooling drives the workpiece to rotate, each of the moving units can spray ink on the surface of the workpiece, thereby completing the printing of the workpiece; when the diameters of the workpiece and the loading part of the tooling are small, the tooling has a large-diameter connecting part, and the support rail of the guide assembly defines the movement path of each moving unit, and the support rail is provided with a lifting part corresponding to the large-diameter part of the tooling. When the moving unit moves along the support rail to the position of the lifting part, the moving unit avoids the large-diameter part of the tooling to avoid the moving unit and the large-diameter part of the tooling from touching each other, thereby ensuring that the small-diameter workpiece can be printed.

[0008] According to some embodiments of the present application, the support rail also includes a first straight portion and a second straight portion, the lifting portion connects the first straight portion and the second straight portion, the height of the first straight portion is less than the height of the second straight portion, and the second straight portion is at the top of the large diameter portion 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 that can move along the first slide rail, and each of the moving units can be disposed on the supporting component so as to be movable up and down.

[0010] According to some embodiments of the present application, the moving unit includes a mounting component, the mounting component is provided with a nozzle for inkjet, the mounting component is provided with a rolling component, and the rolling component abuts against the support rail.

[0011] According to some embodiments of the present application, the motion unit further includes an elastic component, and the mounting component is connected to the supporting component via the elastic component.

[0012] According to some embodiments of the present application, the mounting component is provided with a connecting rod, the supporting component is connected to a positioning component, the positioning component is provided with a guide structure, the connecting rod is inserted into the positioning component through the guide structure, and the elastic component is sleeved on the connecting rod.

[0013] According to some embodiments of the present application, the inkjet mechanism applied to small-diameter workpieces also includes a support plate, a second guide assembly is provided between the support plate and the guide assembly, and the guide assembly moves up and down relative to the support plate through the second guide assembly.

[0014] According to some embodiments of the present application, the inkjet assembly also includes an inkjet housing, the inkjet housing is arranged on the supporting component, the moving unit is in the inner cavity of the inkjet housing, and the inkjet housing is provided with a height measuring device, and the height measuring device is used to measure the height of the inkjet assembly.

[0015] According to some embodiments of the present application, the inkjet housing is provided with a light detection device, and the light detection device is used to provide light to the workpiece.

[0016] According to some embodiments of the present application, the inkjet housing is provided with an anti-collision protection device, and the anti-collision protection device is arranged on the side of the inkjet assembly.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the technical solution disclosed in the present application and constitute a part of the specification. Together with the embodiments disclosed in the present application, they are used to explain the technical solution disclosed in the present application and do not constitute a limitation on the technical solution disclosed in the present application.

[0019] Figure 1 It is a structural schematic diagram of an inkjet mechanism applied to a small-diameter workpiece according to an embodiment of the present application;

[0020] Figure 2 This is a schematic structural diagram of an inkjet housing after opening in an inkjet mechanism applied to a workpiece with a small diameter according to an embodiment of the present application;

[0021] Figure 3 This is a front view of an inkjet mechanism applied to a small-diameter workpiece according to an embodiment of the present application;

[0022] Figure 4 This is a schematic structural diagram of an inkjet mechanism applied to a small-diameter workpiece according to an embodiment of the present application after removing the inkjet housing;

[0023] Figure 5 This is a front view of an inkjet mechanism applied to a small-diameter workpiece according to an embodiment of the present application after removing the inkjet housing;

[0024] Figure 6 It is a structural schematic diagram of an inkjet mechanism for a small-diameter workpiece in an embodiment of the present application, in which a part of the moving unit reaches the lifting part and the supporting component is hidden;

[0025] Figure 7 This is a front view of an embodiment of the present application in which a part of the moving unit of an inkjet mechanism applied to a small-diameter workpiece reaches the lifting part and the supporting component is hidden.

[0026] Reference numerals:

[0027] Tooling 101;

[0028] Guide assembly 200; lifting portion 201; first straight portion 202; second straight portion 203; first slide rail 204;

[0029] Inkjet assembly 300; support component 301; mounting component 302; nozzle 303; rolling component 304; elastic component 305; inkjet housing 306; support plate 307;

[0030] Height measuring device 401 ; Light detection device 402 ; Anti-collision protection device 403 . DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below, and 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 cannot be understood as limiting the present application.

[0032] In the description of the present application, it should be understood that descriptions involving orientation, 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, and are only for the convenience of describing the present 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, and therefore should not be understood as a limitation on the present application.

[0033] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. 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.

[0035] In the description of the present application, the description with 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 the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0036] like Figure 1 , Figure 2 and Figure 3As shown, the embodiment of the present application provides an inkjet mechanism for a small-diameter workpiece, and the inkjet mechanism for a small-diameter workpiece includes a guide assembly 200 and an inkjet assembly 300. The inkjet assembly 300 moves over the rotating workpiece and sprays ink on the rotating workpiece, thereby completing the printing work. The workpiece is sleeved on the tooling 101 and rotates under the drive of the tooling 101. The inkjet assembly 300 avoids the large-diameter part of the tooling 101 through the guide assembly 200 to avoid interference between the inkjet assembly 300 and the tooling 101, thereby ensuring the normal progress of the printing work.

[0037] Furthermore, the workpiece involved in the present mechanism is a cylindrical workpiece with a small diameter. Specifically, the diameter of the workpiece is less than 30 mm.

[0038] At the same time, the tooling 101 involved in the present mechanism is roughly formed into a columnar structure, and 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 inserted into the workpiece is called the loading part. It can be understood that the diameter of the workpiece is small, and accordingly, the diameter of the tooling 101 is also 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, and the tooling 101 is subject to the structural limitations of the rotation drive device, and there must be a large diameter part for connecting the rotation drive device, which is called a connecting part.

[0039] In the tooling 101, since the diameter of the loading part where the workpiece is located is smaller than the diameter of the connecting part, and the inkjet assembly 300 needs to be close to the surface of the workpiece for printing. When the inkjet assembly 300 moves to the connecting part with a large diameter, the inkjet assembly 300 in the traditional inkjet mechanism, i.e., the ink carriage, cannot avoid it, which easily causes the inkjet assembly 300 and the connecting part to interfere with each other. Therefore, the traditional inkjet mechanism cannot print workpieces with a diameter of less than 30 mm. The present application is adapted to the printing of small-diameter workpieces by setting the guide assembly 200 to avoid the connecting part of the tooling 101.

[0040] In some examples, such as Figure 4 and Figure 5 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 connecting portion with a large diameter.

[0041] Furthermore, the inkjet assembly 300 includes a plurality of motion units for inkjetting. It is worth noting that each motion unit is filled with ink of different colors, so as to print patterns of different colors on the surface of the workpiece. Since the pattern requirements on the surface of the workpiece are diverse, any color may be printed on the surface of the workpiece near the connection part. Therefore, each motion unit can move to the position of the surface of the workpiece near the connection part.

[0042] At the same time, each moving unit is carried on the support rail, and the lifting part 201 enables the height of the support rail to be raised, and the position of the lifting part 201 corresponds to the connection part of the tooling 101. When the moving unit moves to the position of the lifting part 201, the moving unit avoids the connection part by raising the height. Specifically, each moving unit is arranged horizontally and in parallel, and is independent of each other. Each moving unit can move up and down individually, so that each moving unit can reach the position of the workpiece surface close to the connection part to meet the printing requirements of multiple colors.

[0043] In some examples, the guide assembly 200 includes a first slide rail 204 which is horizontally disposed, and the inkjet assembly 300 includes a support component 301 which is slidably connected to the first slide rail 204 and moves along the first slide rail 204 .

[0044] 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, and the height of the first straight portion 202 is less than the height of the second straight portion. The height of the lifting portion 201 gradually increases from the first straight portion 202 to the second straight portion 203, and it can be understood that the lifting portion 201 is inclined.

[0045] The second straight portion 203 is located at the top of the connection part of the tooling 101, while the first straight portion 202 is located away from the tooling 101 and the workpiece. The moving unit moves from the first straight portion 202 to the lifting portion 201, and avoids the connection part of the tooling 101 at the lifting portion 201. At this time, the moving unit that reaches the lifting portion 201 has completed the printing work and begins to move away from the surface of the workpiece. After reaching the lifting portion 201, the moving unit further moves to the second straight portion 203.

[0046] In some examples, such as Figure 6 and Figure 7 As shown, the moving unit includes a mounting component 302. Specifically, the mounting component 302 includes a horizontal portion and a vertical portion connected to each other.

[0047] The horizontal part is provided with a nozzle 303 for inkjet, and a first guide assembly is provided between the vertical part and the support part 301. Specifically, the first guide assembly can adopt a slide rail or a slider mechanism. The first guide assembly is used to guide the moving unit to move up and down relative to the support part 301, that is, to move in the vertical direction, so as to ensure that the moving unit can also move up and down along the lifting part 201 during the horizontal movement, thereby avoiding the connection part of the tooling 101.

[0048] Specifically, the mounting component 302 is provided with a rolling component 304. It can be understood that the rolling component 304 is provided at the vertical portion of the mounting component 302 and is in rolling contact with the support rail. When the motion unit moves horizontally along the support rail, the mounting component 302 forms rolling friction with the support rail through the rolling component 304, thereby ensuring the smoothness of the horizontal movement of the mounting component 302. Furthermore, the rolling component 304 adopts a bearing, and the bearing is connected to the mounting component 302 through a rotating shaft.

[0049] In some examples, the motion unit further includes an elastic component 305, and the mounting component 302 is connected to the support component 301 through the elastic component 305. Specifically, when the mounting component 302 is carried on the first straight portion 202 through the rolling component 304, the length of the elastic component 305 is relatively large, and the elastic force applied by the elastic component 305 to the mounting component 302 is relatively small; when the mounting component 302 is carried on the lifting portion 201, the length of the elastic component 305 gradually decreases, and the elastic force applied by the elastic component 305 to the mounting component 302 gradually increases; it can be understood that when the mounting component 302 is carried on the second straight portion 203, the length of the elastic component 305 is relatively small, and the elastic force applied by the elastic component 305 to the mounting component 302 is relatively large, thereby ensuring that the rolling component 304 always maintains close rolling contact with the support rail, and preventing the rolling component 304 from being separated from the support rail.

[0050] Further, 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.

[0051] In some examples, the mounting component 302 is provided with a connecting rod, and the supporting component 301 is connected with a positioning component, specifically, the positioning component is kept horizontal.

[0052] The positioning component is provided with a guide structure, and the number of the guide structures is the same as the number of the connecting rods. Specifically, the guide structure is formed as a hole structure, and the shape of the hole structure corresponds to the outer diameter of the connecting rod. The connecting rod is inserted into the guide structure and can move up and down within the range of the guide structure. The guide structure forms a guide effect for the vertical movement of the connecting rod to prevent the connecting rod from shaking in the horizontal direction. Since the connecting rod is set on the installation component 302, the guide structure can also form a guide effect for the vertical movement of the installation component 302.

[0053] Specifically, when the elastic component 305 is a spring, the elastic component 305 is sleeved on the connecting rod.

[0054] In some examples, the inkjet mechanism applied to a workpiece with a small diameter further includes a support plate 307 , the position of the support plate 307 is fixed, and the support plate 307 is used to connect to the guide assembly 200 .

[0055] A second guide assembly is provided between the support plate 307 and the guide assembly 200. Specifically, the second guide assembly can be a slide rail or a slider mechanism. The guide assembly 200 can move up and down relative to the support plate 307 through the second guide assembly, thereby adjusting the height of the guide assembly 200, that is, adjusting the height of the inkjet assembly 300, so that the height of the inkjet assembly 300 is adapted to the workpiece mounted on the tooling 101.

[0056] 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 understandable that the inkjet housing 306 plays a certain protective role on each moving unit.

[0057] 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 .

[0058] 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.

[0059] In some examples, the inkjet housing 306 is provided with a light detection device 402, and the light detection device 402 is used to provide light to the workpiece, thereby completing the detection process.

[0060] In some examples, the inkjet housing 306 is provided with an anti-collision protection device 403 , which is formed as a plate-shaped structure and is located at a side of the inkjet assembly 300 .

[0061] 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. When there is an unexpected obstruction in the moving path, the obstruction may cause a certain impact on the anti-collision protection device 403, but will not affect the various moving units inside the inkjet housing 306.

[0062] In the actual implementation process, first, the workpiece is sleeved on the fixture 101 to complete the loading of the workpiece, and it is ensured that the workpiece is tightly connected to the fixture 101 so that the workpiece can rotate with the fixture 101; secondly, the guide component 200 is height-adjusted relative to the support plate 307 through the second guide component. During this process, the guide component 200 also drives the inkjet component 300 to adjust its height to the same extent so that the inkjet component 300 is suitable for the height of the workpiece; thirdly, the support component 301 moves horizontally along the first slide rail 204, and the moving unit on the support component 301 passes through the first straight portion 202, the lifting portion 201 and the second straight portion 203 in turn. When the moving unit moves to the lifting portion 201, the moving unit is raised at a position on the surface of the workpiece close to the connecting part, thereby avoiding the connecting part of the fixture 101. Each moving unit moves in this way to ensure that each moving unit can move to a position on the surface of the workpiece close to the connecting part, so that each color of ink can cover all positions on the surface of the workpiece, thereby completing multi-color printing of small-diameter cylindrical workpieces.

[0063] In some selectable embodiments, the function / operation mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the function / operation involved, the two boxes shown in succession can actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiment presented and described in the flow chart of the application is provided by way of example, for the purpose of providing a more comprehensive understanding of technology. The disclosed method is not limited to the operation and logic flow presented herein. Selectable embodiments are expected, wherein the order of various operations is changed and the sub-operation of a part described as a larger operation is performed independently.

[0064] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of 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 in the embodiments can be combined with each other without conflict.

Claims

1. An inkjet mechanism for small diameter workpieces, characterized in that: include: A guide assembly, the guide assembly comprising a support rail, the support rail comprising a lifting portion, the height of the lifting portion gradually increasing; The inkjet assembly comprises a plurality of moving units for inkjet, each of the moving units is movably carried on the support rail, and when the moving unit moves to the lifting part, the moving unit avoids the large diameter part of the tooling.

2. The inkjet mechanism for small diameter workpieces according to claim 1, characterized in that: The support rail further includes a first straight portion and a second straight portion, the lifting portion connects the first straight portion and the second straight portion, the height of the first straight portion is smaller than the height of the second straight portion, and the second straight portion is at the top of the large diameter portion of the tooling.

3. The inkjet mechanism for small diameter workpieces 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 disposed on the supporting component so as to be movable up and down.

4. The inkjet mechanism for small diameter workpieces according to claim 3, characterized in that: The moving unit comprises a mounting component, the mounting component is provided with a nozzle for inkjet, the mounting component is provided with a rolling component, and the rolling component abuts against the supporting rail.

5. The inkjet mechanism for small diameter workpieces according to claim 4, characterized in that: The moving unit further includes an elastic component, and the mounting component is connected to the supporting component via the elastic component.

6. The inkjet mechanism for small diameter workpieces according to claim 5, characterized in that: The mounting component is provided with a connecting rod, the supporting component is connected with a positioning component, the positioning component is provided with a guiding structure, the connecting rod is plugged into the positioning component through the guiding structure, and the elastic component is sleeved on the connecting rod.

7. The inkjet mechanism for small diameter workpieces according to claim 1, characterized in that: The inkjet mechanism applied to small-diameter workpieces also includes a support plate, a second guide assembly is provided between the support plate and the guide assembly, and the guide assembly moves up and down relative to the support plate through the second guide assembly.

8. The inkjet mechanism for small diameter workpieces according to claim 3, characterized in that: The inkjet assembly further comprises an inkjet housing, the inkjet housing is arranged on the supporting component, the moving unit is located in the inner cavity of the inkjet housing, and the inkjet housing is provided with a height measuring device, and the height measuring device is used to measure the height of the inkjet assembly.

9. The inkjet mechanism for small diameter workpieces according to claim 8, characterized in that: The inkjet housing is provided with a light detection device, and the light detection device is used to provide light to the workpiece.

10. The inkjet mechanism for small diameter workpieces according to claim 8, characterized in that: The inkjet housing is provided with an anti-collision protection device, and the anti-collision protection device is arranged on the side of the inkjet component.

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