Fixing device and printing equipment

Abstract

The present application provides a fixing device for fixing an object to be printed. The fixing device includes a connecting member, a first positioning member, and a second positioning member. The first positioning member is movably arranged on the connecting member to abut against the object to be printed. The second positioning member is fixedly arranged on the connecting member to fix one end of the object to be printed away from the first positioning member. The above fixing device fixes the opposite ends of the object to be printed through the first positioning member and the second positioning member, solves the problem that the printing surface of the object is blocked, and is beneficial to improving the printing quality. The present application also provides a printing device having the fixing device.

Description

Technical Field

[0001] The present application relates to the field of printing technology, and particularly to a fixing device and a printing device having the fixing device. Background Art

[0002] In existing printing devices, when printing an object, fixtures such as jaws and chucks are usually used to fix the object, and these fixtures are likely to cause the printing surface of the object to be blocked, reducing the printing quality. Summary of the Invention

[0003] In view of the above situation, the present application provides a fixing device and a printing device having the fixing device. By fixing the opposite ends of the object to be printed through a first positioning member and a second positioning member, the problem that the printing surface of the object is blocked is solved, which is beneficial to improving the printing quality.

[0004] A fixing device for fixing an object to be printed, the fixing device includes a connecting member, a first positioning member and a second positioning member. The first positioning member is movably arranged on the connecting member to abut against the object to be printed. The second positioning member is fixedly arranged on the connecting member to fix one end of the object to be printed away from the first positioning member.

[0005] In some embodiments, the first positioning member includes a first end and a second end arranged opposite to each other. The first end faces the object to be printed. In the direction extending from the second end towards the first end, the diameter of the first positioning member gradually decreases, and the first end can be inserted into the open end of the object to be printed.

[0006] In some embodiments, a plurality of positioning marks are arranged at intervals on the surface of the first positioning member, and the open end of the object to be printed abuts against the positioning marks.

[0007] In some embodiments, the outer surface of the connecting member is provided with an external thread, a through hole is formed in the middle of the first positioning member, and a corresponding internal thread is provided on the surface of the through hole. The connecting member is threadedly connected to the first positioning member.

[0008] In some embodiments, a groove is provided at the end of the connecting member; along the axial direction of the connecting member, a cavity is further provided inside the connecting member, and the cavity communicates with the groove; at least a part of the second positioning member is arranged in the groove.

[0009] In some embodiments, the second positioning member is an electromagnetic chuck; the fixing device further includes a magnetic attracting member arranged outside the object to be printed, and the second positioning member and the magnetic attracting member are arranged opposite to each other to clamp the object to be printed by magnetic attraction.

[0010] In some embodiments, the fixing device further includes: a support member sleeved on the outer peripheral side of the second positioning member to abut against the object to be printed.

[0011] In some embodiments, the support member includes a fixing portion and an abutting portion. The fixing portion is fixedly connected to the connecting member, and the abutting portion abuts against the object to be printed.

[0012] In some embodiments, the fixing portion is a cylindrical structure with openings at both ends and is sleeved on the connecting member; the abutting portion is a hollow truncated cone structure with openings at both ends, and the diameter of the abutting portion gradually increases in the direction extending from the fixing portion to the abutting portion.

[0013] An embodiment of the present application further provides a printing device for printing patterns or texts on the surface of an object. The printing device includes the fixing device described in any one of the above.

[0014] The fixing device provided by the present application fixes the opposite ends of the object to be printed through the first positioning member and the second positioning member, solves the problem that the printing surface of the object is blocked, and is beneficial to improving the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic structural diagram of the fixing device in an embodiment.

[0016] Figure 2 is Figure 1 a schematic cross-sectional structural diagram of the fixing device shown.

[0017] Figure 3 is Figure 1 a schematic structural diagram of the fixing device shown in a use state. The structure in the dotted circle in the figure is a partial enlarged structure of the fixing device.

[0018] Figure 4 FIG. is a schematic structural diagram of the printing device in an embodiment.

[0019] MAIN ELEMENT SYMBOL DESCRIPTION:

[0020] Fixing device 100 Object 101 Printing equipment 200 Connecting piece 10 Thread 11 Groove 12 Cavity 13 First positioning piece 20 First end 21 Second end 22 Positioning mark 23 Indentation 231 Second positioning piece 30 Magnetic part 40 Supporting piece 50 Fixing part 51 Abutting part 52 DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0022] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. When an element is considered to be "disposed on" another element, it can be directly disposed on the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are only for the purpose of illustration.

[0023] Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "or / and" used in this article includes any and all combinations of one or more of the related listed items.

[0024] This application provides a fixing device for fixing an object to be printed. The fixing device includes a connecting member, a first positioning member and a second positioning member. The first positioning member is movably disposed on the connecting member to abut against the object to be printed. The second positioning member is fixedly disposed on the connecting member to fix one end of the object to be printed away from the first positioning member.

[0025] The above fixing device fixes the opposite ends of the object to be printed through the first positioning member and the second positioning member, solves the problem that the printing surface of the object is blocked, and is beneficial to improving the printing quality.

[0026] Some embodiments of this application will be described in detail. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0027] Please refer to Figure 1 and Figure 2 In an embodiment, the fixing device 100 includes a connecting member 10, a first positioning member 20 and a second positioning member 30. The connecting member 10 is used to support the object 101 to be printed. The first positioning member 20 is movably disposed on the connecting member 10 to abut against the open end of the object 101 to be printed. The second positioning member 30 is fixedly disposed on the connecting member 10 to fix one end of the object 101 to be printed away from the first positioning member 20.

[0028] In the embodiment of this application, the object 101 to be printed has a hollow structure, and its circumferential surface is the printing surface. The connecting member 10 has a rod-like structure, and one end of it is inserted into the interior of the object 101 to be printed to support the object 101.

[0029] The first positioning member 20 is generally in the shape of a frustum of a cone and is sleeved on the connecting member 10. Specifically, the first positioning member 20 includes a first end 21 and a second end 22 which are oppositely arranged. The first end 21 faces the object 101 to be printed. From the direction extending from the second end 22 towards the first end 21, the diameter of the first positioning member 20 gradually decreases. The first end 21 can be inserted into the open end of the object 101 to be printed. The conical surface of the first positioning member 20 contacts the edge of the open end of the object 101 to achieve the positioning function. It is not necessary to overly squeeze the first positioning member 20 into the object 101 to avoid deformation of the object 101 and damage to the first positioning member 20.

[0030] A plurality of positioning marks 23 are also spaced apart on the circumferential surface of the first positioning member 20 for checking whether the object 101 to be printed is correctly installed. In this embodiment, the three positioning marks 23 are equally spaced on the circumferential surface of the first positioning member 20. Each positioning mark 23 includes a plurality of parallel scratches 231. In different positioning marks 23, the corresponding scratches 231 are located on the same circumference. The object 101 to be printed is generally in the shape of a cylindrical tube. When the first positioning member 20 abuts against the open end of the object 101, if the open end of the object 101 is aligned with the three scratches 231 on the same circumference, the object 101 is correctly installed, and the object 101 and the first positioning member 20 are coaxially arranged, which is beneficial to avoiding problems such as pattern inclination and missing on the printing surface of the object 101. It can be understood that in other embodiments, the number of the positioning marks 23 can be more or less than three, and the present application is not limited thereto.

[0031] Further, please refer to Figure 3 , the first positioning member 20 is sleeved on the connecting member 10. The outer surface of the connecting member 10 is provided with an external thread 11. A through hole is formed in the middle of the first positioning member 20, and a corresponding internal thread is provided on the surface of the through hole. The first positioning member 20 is threadedly connected to the connecting member 10, and the feed amount of the first positioning member 20 can be adjusted by rotating the first positioning member 20, reducing the risk of the first positioning member 20 overly squeezing the open end of the object 101.

[0032] Please refer to again Figure 2, the second positioning member 30 is fixedly arranged at the end of the connecting member 10 and is inserted into the interior of the object 101 to be printed along with the connecting member 10, and is used to fix the inner bottom surface of the object 101. A groove 12 is provided at the end of the connecting member 10, and at least a part of the second positioning member 30 is arranged in the groove 12. Along the axial direction of the connecting member 10, a cavity 13 is further provided inside the connecting member 10, and the cavity 13 communicates with the groove 12. The circuit or pipeline (not shown in the figure) of the second positioning member 30 can be accommodated in the cavity. In the embodiment of the present application, the second positioning member 30 is an electromagnetic chuck. When the object 101 is a metal part, the electromagnetic chuck can directly fix the object 101 by magnetic force. In other embodiments, the second positioning member 30 can also be a vacuum chuck, which uses negative pressure to suck and fix the object 101.

[0033] The fixing device 100 further includes a magnetic attracting member 40, which is arranged on the outer side of the object 101 to be printed. The second positioning member 30 and the magnetic attracting member 40 are arranged opposite to each other, so that the bottom of the object 101 is located between the second positioning member 30 and the magnetic attracting member 40, so as to clamp the object 101 to be printed by magnetic attraction. This clamping method does not limit the material of the object 101, and the object 101 can also be a non-metal part.

[0034] The fixing device 100 further includes a supporting member 50. The supporting member 50 is sleeved on the outer peripheral side of the second positioning member 30 to abut against the object 101 to be printed, increase the contact area between the fixing device 100 and the bottom of the object 101, provide an auxiliary supporting effect, and prevent the object 101 from shaking. The supporting member 50 is made of a flexible material to adapt to objects 101 of different shapes and sizes. The flexible material includes but is not limited to elastic materials such as plastics and rubbers. Specifically, the supporting member 50 includes a fixing portion 51 and a abutting portion 52. The fixing portion 51 and the abutting portion 52 can be an integrally formed structure. In this embodiment, the fixing portion 51 is generally a cylindrical structure with openings at both ends, and is sleeved on the connecting member 10 to be fixedly connected to the connecting member 10. The abutting portion 52 is generally a hollow frustum structure with openings at both ends, and the diameter of the end far from the fixing portion 51 is larger to abut against the object 101 to be printed. Specifically, in the direction extending from the fixing portion 51 to the abutting portion 52, the diameter of the abutting portion 52 gradually increases. The second positioning member 30 is located in the inner cavity of the abutting portion 52. When the second positioning member 30 and the magnetic attracting member 40 clamp the object 101, the abutting portion 52 abuts against the inner bottom surface of the object 101 to assist in supporting the object 101.

[0035] In other embodiments, the connecting member 10 may be drivingly connected to a driver for driving the connecting member 10 to rotate. An object 101 fixed between the first positioning member 20 and the second positioning member 30 may rotate together with the connecting member 10, so that the printing surface moves relative to the print head, which is beneficial to the printing operation.

[0036] Please refer to Figure 4 , an embodiment of the present application further provides a printing device 200 for printing patterns or characters on the surface of an object 101. The printing device 200 includes the fixing device 100 in the above embodiment.

[0037] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A fixing device for fixing an object to be printed, characterized in that, The fixing device includes: A connecting member, with a groove provided at the end thereof; along the axial direction of the connecting member, a cavity is further provided inside the connecting member, and the cavity communicates with the groove; A first positioning member, movably arranged on the connecting member to abut against the object to be printed; A second positioning member, fixedly arranged on the connecting member to fix one end of the object to be printed away from the first positioning member; at least part of the second positioning member is arranged in the groove.

2. The fixing device according to claim 1, wherein The first positioning member includes a first end and a second end arranged oppositely, the first end faces the object to be printed, and in the direction extending from the second end towards the first end, the diameter of the first positioning member gradually decreases, and the first end can be inserted into the open end of the object to be printed.

3. The fixing device according to claim 2, wherein A plurality of positioning marks are spaced on the surface of the first positioning member, and the open end of the object to be printed abuts against the positioning marks.

4. The fixing device according to claim 1, wherein The outer surface of the connecting member is provided with external threads, a through hole is provided in the middle of the first positioning member, and corresponding internal threads are provided on the surface of the through hole, and the connecting member is threadedly connected with the first positioning member.

5. The fixing device according to claim 1, wherein The second positioning member is an electromagnetic chuck; The fixing device further includes a magnetic attracting member, arranged on the outer side of the object to be printed, and the second positioning member is arranged opposite to the magnetic attracting member to clamp the object to be printed by magnetic attraction.

6. The fixing device according to claim 1, wherein, Further includes: A supporting member, sleeved on the outer peripheral side of the second positioning member to abut against the object to be printed.

7. The fixing device according to claim 6, wherein The supporting member includes a fixing portion and a abutting portion, the fixing portion is fixedly connected to the connecting member, and the abutting portion abuts against the object to be printed.

8. The fixing device according to claim 7, wherein The fixing portion is a cylindrical structure with openings at both ends, sleeved on the connecting member; The abutting portion is a hollow frustum structure with openings at both ends, and in the direction extending from the fixing portion towards the abutting portion, the diameter of the abutting portion gradually increases.

9. A printing device for printing patterns or texts on the surface of an object, characterized in that, The printing device includes the fixing device according to any one of claims 1-8.

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