Electrostatic dust removing mechanism and inkjet printing apparatus

Abstract

The utility model relates to ink -jet printing equipment technical field, solve the technical problem that the dust removal mechanism structure is complex among the prior art, provide a kind of electrostatic dust removal mechanism and ink -jet printing equipment, electrostatic dust removal mechanism includes first cleaning component and second cleaning component, the working surface of first cleaning component and the working surface of second cleaning component are rolling contact;When first cleaning component and the outer surface of moving workpiece rolling contact, first cleaning component is driven under the drive of moving workpiece and drives second cleaning component to roll.By first cleaning component and the outer surface of moving workpiece rolling contact, can the dust on the surface of workpiece be adsorbed on the surface of first cleaning component, simultaneously, the working surface of first cleaning component and second cleaning component is rolling contact, under the drive of moving workpiece, first cleaning component drives second cleaning component to roll, can the dust on first cleaning component be adsorbed on second cleaning component, effectively clean the surface of moving workpiece, reach the effect of dust removal, structure is simpler.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology for inkjet printing equipment, and in particular to an electrostatic dust removal mechanism and an inkjet printing equipment. Background Technology

[0002] When inkjet printing is performed on the surface of a substrate, if there are fine contaminants such as dust, debris, and hair on the surface of the substrate, the printing quality will be affected if the contaminants are not cleaned.

[0003] In the field of inkjet printing, existing methods for removing dust from the surface of the printing substrate generally involve removing contaminants from paper or other two-dimensional flat substrates. The technical solution typically employs a combination of a cylinder and compressed gas. An air nozzle is aimed at the workpiece, and the flow rate of compressed gas is controlled by the cylinder to achieve the purpose of dust removal from the workpiece surface. However, this technical solution, which uses cylinder control, involves numerous structural and control systems, making it relatively complex. Utility Model Content

[0004] In view of this, the present invention provides an electrostatic dust removal mechanism and an inkjet printing device to solve the technical problem of the complex structure of the dust removal mechanism in existing inkjet printing devices.

[0005] In a first aspect, this utility model provides an electrostatic dust removal mechanism for cleaning the outer surface of a moving workpiece, comprising: a first cleaning component and a second cleaning component, wherein the working surface of the first cleaning component and the working surface of the second cleaning component are in rolling contact; when the first cleaning component is in rolling contact with the outer surface of the moving workpiece, the first cleaning component drives the second cleaning component to roll under the drive of the moving workpiece.

[0006] Preferably, the electrostatic dust removal mechanism further includes a fixing member, which includes a sliding shaft and a support member, one end of the sliding shaft being fixedly connected to the support member; the first cleaning component includes a first fixed shaft, the second cleaning component includes a second fixed shaft, and the other end of the sliding shaft is slidably connected to the first fixed shaft and the second fixed shaft respectively.

[0007] Preferably, the electrostatic dust removal mechanism further includes an elastic element, one end of which is fixedly connected to the support element, and the other end of which is connected to the second fixed shaft.

[0008] Preferably, the first cleaning component further includes a first rotating member, and the first fixed shaft passes through the axis of the first rotating member and is movably connected to the first rotating member; the second cleaning component further includes a second rotating member, and the second fixed shaft passes through the axis of the second rotating member and is movably connected to the second rotating member; the working surface of the first rotating member and the working surface of the second rotating member are in rolling contact.

[0009] Preferably, the working surfaces of the first rotating component and the second rotating component are both convex outward arc surfaces, and the distance from the axis of the second rotating component to the arc surface is greater than the distance from the axis of the first rotating component to the arc surface.

[0010] Preferably, the second cleaning component further includes a third fixed shaft and a third rotating component, wherein the third fixed shaft passes through the axis of the third rotating component and is movably connected to the third rotating component; the working surface of the third rotating component is connected to the working surface of the second rotating component via an adhesive tape.

[0011] Preferably, the third fixed shaft is fixedly connected to the support member.

[0012] Preferably, the surface of the second rotating component is provided with an adhesive layer.

[0013] Preferably, the first rotating component is made of rubber; the adhesive layer has a greater adhesion than the surface adhesion of the first rotating component.

[0014] Secondly, embodiments of the present invention provide an inkjet printing device, the device including the electrostatic dust removal mechanism described in any of the above claims.

[0015] Beneficial effects:

[0016] Compared with the prior art, an electrostatic dust removal mechanism according to an embodiment of this application is used to clean the outer surface of a moving workpiece. The electrostatic dust removal mechanism includes a first cleaning component and a second cleaning component. The working surfaces of the first and second cleaning components are in rolling contact. When the first cleaning component is in rolling contact with the outer surface of the moving workpiece, it drives the second cleaning component to roll under the influence of the moving workpiece. This electrostatic dust removal mechanism, through the rolling contact between the working surface of the first cleaning component and the outer surface of the moving workpiece, can adsorb dust from the surface of the moving workpiece onto the surface of the first cleaning component. Simultaneously, the rolling contact between the working surfaces of the first and second cleaning components, driven by the moving workpiece, allows the first cleaning component to drive the second cleaning component to roll, thus adsorbing dust from the first cleaning component onto the second cleaning component. In other words, by transferring dust from the surface of the moving workpiece to the second cleaning component via the first cleaning component, the workpiece surface can be effectively cleaned, achieving a dust removal effect. The structure is relatively simpler.

[0017] Compared with the prior art, an inkjet printing device according to an embodiment of this application includes the electrostatic dust removal mechanism described above. It is understood that the inkjet printing device can possess all the technical features and beneficial effects of the electrostatic dust removal mechanism described above, and will not be repeated here. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0019] Figure 1 This is a side view of the electrostatic dust removal mechanism in contact with the workpiece according to an embodiment of the present invention;

[0020] Figure 2 This is a side view of the electrostatic dust removal mechanism in contact with the workpiece according to another embodiment of the present invention.

[0021] Figure 3 This is a front structural diagram of the electrostatic dust removal mechanism in contact with the workpiece according to an embodiment of the present invention;

[0022] Figure 4 This is a side view of the electrostatic dust removal mechanism in contact with the workpiece according to another embodiment of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the inkjet printing device in contact with the workpiece according to an embodiment of the present invention.

[0024] Parts and component numbers in the diagram:

[0025] 1. Second cleaning component; 10. Second fixed shaft; 11. Second rotating component; 12. Third rotating component; 2. First cleaning component; 20. First fixed shaft; 21. First rotating component; 3. Moving workpiece; 4. Fixing component; 40. Sliding shaft; 41. Support component; 5. Elastic component; 6. Adhesive tape; 7. Inkjet printing equipment; 70. Electrostatic dust removal mechanism. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this (utility model or utility invention), it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this (utility model or utility invention). Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, various features in the embodiments and examples of this (utility model) can be combined with each other, all within the scope of protection of this (utility model).

[0027] To facilitate understanding of the technical solution of this utility model application, the following explanation is provided:

[0028] Moving workpiece 3: refers to a workpiece in a moving state, which can be moved by conveyor belts, production lines, lifting mechanisms and mechanical grippers.

[0029] Inkjet printing equipment 7: refers to printing equipment that sprays ink in the form of tiny droplets onto the surface of printing media (also known as printing media or workpieces) such as paper, plastic, cloth, and battery casing through a printhead, thereby forming text, images, or patterns.

[0030] Please see Figures 1 to 5One embodiment of this utility model provides an electrostatic dust removal mechanism 70 for cleaning the outer surface of a moving workpiece 3, comprising: a first cleaning component 2 and a second cleaning component 1, wherein the working surface of the first cleaning component 2 is in rolling contact with the working surface of the second cleaning component 1; when the first cleaning component 2 is in rolling contact with the outer surface of the moving workpiece 3, the first cleaning component 2 drives the second cleaning component 1 to roll under the drive of the moving workpiece 3.

[0031] In this embodiment, the first cleaning component 2 is used to adsorb dust on the surface of the moving workpiece 3 when it rolls into contact with the moving workpiece 3. The second cleaning component 1 is used to adsorb dust on the first cleaning component 2 when it rolls into contact with the first cleaning component 2. It can be understood that in actual use, the electrostatic dust removal mechanism 70 is powered by the moving workpiece 3. When the working surface of the first cleaning component 2 contacts the moving workpiece 3, the moving workpiece 3 is in a moving state and can drive the first cleaning component 2 to rotate. Since the working surface of the second cleaning component 1 is in rolling contact with the working surface of the first cleaning component 2, the first cleaning component 2 can drive the second cleaning component 1 to roll under the drive of the moving workpiece 3, thereby transferring the dust adsorbed by the first cleaning component 2 to the second cleaning component 1 at the position where the first cleaning component 2 and the second cleaning component 1 are in contact.

[0032] In the above embodiment, by rolling contact between the first cleaning component 2 and the outer surface of the moving workpiece 3, dust on the outer surface of the moving workpiece 3 can be adsorbed onto the working surface of the first cleaning component 2. Simultaneously, the working surface of the first cleaning component 2 rolls into contact with the working surface of the second cleaning component 1. Driven by the moving workpiece 3, the first cleaning component 2 can drive the second cleaning component 1 to roll, thus adsorbing dust from the first cleaning component 2 onto the second cleaning component 1. In other words, by transferring dust from the surface of the moving workpiece 3 to the second cleaning component 1 via the first cleaning component 2, the outer surface of the moving workpiece 3 can be effectively cleaned, achieving a dust removal effect. Compared with existing dust removal mechanisms, this application does not require control mechanisms such as cylinders, uses relatively fewer structural components, and has a simpler structure, effectively solving the technical problem of the complex structure of existing inkjet printing equipment 7's dust removal mechanism.

[0033] Please see Figures 1 to 5 In one embodiment, the electrostatic dust removal mechanism 70 further includes a fixing member 4, which includes a sliding shaft 40 and a support member 41. One end of the sliding shaft 40 is fixedly connected to the support member 41. The first cleaning component 2 includes a first fixing shaft 20, and the second cleaning component 1 includes a second fixing shaft 10. The other end of the sliding shaft 40 is slidably connected to the first fixing shaft 20 and the second fixing shaft 10, respectively.

[0034] In this embodiment, the fixing member 4 is used to fix the first cleaning component 2 and the second cleaning component 1. The support member 41 is fixedly connected to one end of the sliding shaft 40, and the other end of the sliding shaft 40 is connected to the first fixed shaft 20 and the second fixed shaft 10, thus providing support for the first cleaning component 2 and the second cleaning component 1. After the first fixed shaft 20 and the second fixed shaft 10 are connected to the sliding shaft 40, the first fixed shaft 20 and the second fixed shaft 10 can slide along the sliding shaft 40 under the action of external force, thereby enabling the first cleaning component 2 and the second cleaning component 1 to be adjusted according to the size of the workpiece 3.

[0035] It should be noted that this application does not limit the direction in which the sliding shaft 40 is set, and it can be set according to the environment in which the workpiece 3 is located. For example, when the workpiece 3 is moving in the horizontal direction, the sliding shaft 40 can be set in the vertical direction, and the first cleaning component 2 and the second cleaning component 1 can slide in the vertical direction under the action of external force. When the workpiece 3 is moving in the vertical direction, the sliding shaft 40 can be set in the vertical direction, and the first cleaning component 2 and the second cleaning component 1 can slide in the horizontal direction under the action of external force.

[0036] Specifically, the support member 41 can be a support plate. This application embodiment does not limit the material of the support member 41, and it can be selected according to actual needs. For example, it can be a steel plate, a wooden board, or an acrylic plate.

[0037] Please see Figures 1 to 5 In one embodiment, the electrostatic dust removal mechanism 70 further includes an elastic element 5, one end of which is fixedly connected to the support member 41, and the other end is connected to the second fixed shaft 10.

[0038] In this embodiment, the elastic element 5 provides a squeezing force when the first cleaning component 2 and the workpiece 3 roll into contact; at the same time, it enables the electrostatic dust removal mechanism 70 to automatically adapt to workpieces 3 of different sizes.

[0039] In actual use, before the moving workpiece 3 comes into contact with the first cleaning component 2, the elastic element 5 is in a naturally extended state. After the moving workpiece 3 comes into contact with the first cleaning component 2, the moving workpiece 3 squeezes the first cleaning component 2, the first cleaning component 2 squeezes the second cleaning component 1, and the second cleaning component 1 squeezes the elastic element 5, causing the elastic element 5 to be in a compressed state. At this time, the first cleaning component 2 and the second cleaning component 1 slide together towards the support component 41 via the sliding shaft 40 to adapt to the size of the moving workpiece 3. When the moving workpiece 3 and the first cleaning component 2 are no longer in contact, the elastic element 5 provides a restoring force, returning from the compressed state to the naturally extended state. At this time, the first cleaning component 2 and the second cleaning component 1 slide together away from the support component 41 via the sliding shaft 40. Simultaneously, the outer surface of the moving workpiece 3 is cleaned throughout the entire process.

[0040] In the above embodiments, the elastic element 5 refers to a mechanical component that can undergo elastic deformation (such as stretching, compression, bending, etc.) under external force and can return to its original shape after the external force is removed. This application does not limit the specific type of elastic element 5. For example, the elastic element 5 can be a spring, an elastic washer, a rubber block, a bellows, etc. For example, when the elastic element 5 is a spring, the sliding shaft 40 passes through the spring, and one end of the spring is fixedly connected to the support member 41, while the other end can abut against the second fixed shaft 10 of the second cleaning component 1.

[0041] Please see Figures 1 to 5 In one embodiment, the first cleaning component 2 further includes a first rotating member 21, and the first fixed shaft 20 passes through the axis of the first rotating member 21 and is movably connected to the first rotating member 21; the second cleaning component 1 further includes a second rotating member 11, and the second fixed shaft 10 passes through the axis of the second rotating member 11 and is movably connected to the second rotating member 11; the working surface of the first rotating member 21 and the working surface of the second rotating member 11 are in rolling contact.

[0042] In this embodiment, the first rotating component 21 is used to directly clean the surface of the moving workpiece 3. During direct contact with the outer surface of the moving workpiece 3, the force applied by the elastic component 5 when it is in a compressed state causes the first rotating component 21 to roll on the outer surface of the moving workpiece 3, resulting in the combined effects of friction and electrostatic adsorption, which removes dust, debris, and other contaminants from the surface of the moving workpiece 3. Simultaneously, driven by the movement of the workpiece 3, the first rotating component 21 rotates itself and transmits power to the second rotating component 11 through rolling contact, causing the second rotating component 11 to rotate synchronously. The second rotating component 11 is used to remove dust adsorbed on the surface of the first rotating component 21, preventing the first rotating component 21 from reducing its cleaning efficiency due to contaminant accumulation.

[0043] Specifically, the first rotating component 21 and the second rotating component 11 can be cylindrical rollers.

[0044] Please see Figures 1 to 5 In one embodiment, the working surfaces of the first rotating member 21 and the second rotating member 11 are both convex outward arc surfaces, and the distance from the axis of the second rotating member 11 to the arc surface is greater than the distance from the axis of the first rotating member 21 to the arc surface.

[0045] In this embodiment, both the working surfaces of the first rotating component 21 and the second rotating component 11 are convex outward-facing arc surfaces, ensuring stable line contact between them, increasing the contact area, and improving dust adsorption efficiency. The distance from the axis of the second rotating component 11 to the arc surface is greater than the distance from the axis of the first rotating component 21 to the arc surface, making the working surface of the second rotating component 11 larger than that of the first rotating component 21. Since the dust movement path is from the surface of the moving workpiece 3 to the working surface of the first rotating component 21, and then accumulates on the working surface of the second rotating component 11, the maintenance frequency of the second rotating component 11 can be reduced. For example, when both the first rotating component 21 and the second rotating component 11 are cylinders, the working surface is the side surface of the cylinder. The distance from the axis of the second rotating component 11 to the arc surface is greater than the distance from the axis of the first rotating component 21 to the arc surface. That is, the radius of the second rotating component 11 is greater than the radius of the first rotating component 21. Therefore, the working surface of the second rotating component 11 is greater than the working surface of the first rotating component 21. Compared with the first rotating component 21, the second rotating component 11 can accumulate more dust, thereby reducing the replacement frequency of the second rotating component 11.

[0046] Please see Figures 1 to 5 In one embodiment, the second cleaning component 1 further includes a third fixed shaft and a third rotating component 12. The third fixed shaft passes through the axis of the third rotating component 12 and is movably connected to the third rotating component 12. The working surface of the third rotating component 12 is connected to the working surface of the second rotating component 11 via an adhesive tape 6. The third fixed shaft is fixedly connected to the support component 41.

[0047] In this embodiment, the third fixed shaft provides rigid support, restricting the axial position of the third rotating component 12 and preventing shaft displacement due to the tension or vibration of the tape 6, thus ensuring stable contact between the tape 6 and the second rotating component 11. The tape 6 is used to absorb dust from the first rotating component 21. When the second rotating component 11 rotates, the friction between the tape 6 and the third rotating component 12 drives the third rotating component 12 to rotate synchronously around the third fixed shaft. Furthermore, the second rotating component 11 can also be a take-up roller, and the third rotating component 12 can be an unwinding roller. During the cleaning process of the first rotating component 21, the adhesive cleaning ability of the second rotating component 11 can be continuously maintained by the take-up and unwinding of the tape 6 roll, avoiding frequent manual replacement of the tape 6. Specifically, the take-up and unwinding process of the tape 6 is as follows: the second rotating component 11 continuously recycles the tape 6 covered with dust during rotation, and the third rotating component 12 continuously releases new tape 6. Part of the new tape 6 will cover the working surface of the second rotating component 11 as the third rotating component 12 rotates, continuously maintaining the cleaning ability of the second rotating component 11.

[0048] Please see Figures 1 to 5In one embodiment, the surface of the second rotating member 11 is provided with an adhesive layer. The first rotating member 21 is made of rubber; the adhesive layer has a stronger adhesion than the surface adhesion of the first rotating member 21.

[0049] In this embodiment, the adhesive layer refers to a sticky material, such as a special dust removal tape 6 or a low-viscosity hot melt adhesive film, used to remove dust from the surface of the first rotating component 21. Rubber has high elasticity and moderate surface tack, enabling it to absorb dust from the surface of the moving workpiece 3. The adhesive layer has a higher tack than the surface tack of the first rotating component 21, ensuring that when the first rotating component 21 and the second rotating component 11 roll into contact, the dust on the surface of the first rotating component 21 is peeled off and adhered to the second rotating component 11.

[0050] Please see Figure 5 Another embodiment of this utility model provides an inkjet printing device 7, including the electrostatic dust removal mechanism 70 described in any of the above embodiments.

[0051] It should be noted that this application does not limit the manner or specific location of the electrostatic dust removal mechanism 70 installed in the inkjet printer 7, and adjustments can be made according to the actual situation. For example, such as... Figure 5 As shown, when the workpiece 3 is horizontally conveyed to the bottom of the print head for printing, the electrostatic dust removal mechanism 70 is fixedly installed in front of the print head, which can ensure that the workpiece 3 is effectively cleaned before printing.

[0052] In summary, the electrostatic dust removal mechanism 70 of this application embodiment includes a first cleaning component 2 and a second cleaning component 1. The working surface of the first cleaning component 2 is in rolling contact with the working surface of the second cleaning component 1. When the working surface of the first cleaning component 2 is in rolling contact with the outer surface of the moving workpiece 3, the first cleaning component 2 drives the second cleaning component 1 to roll under the drive of the moving workpiece 3. This electrostatic dust removal mechanism 70, through the rolling contact between the working surface of the first cleaning component 2 and the outer surface of the moving workpiece 3, can adsorb dust on the surface of the moving workpiece 3 onto the working surface of the first cleaning component 2. Simultaneously, the rolling contact between the working surface of the first cleaning component 2 and the working surface of the second cleaning component 1, driven by the moving workpiece 3, allows the first cleaning component 2 to drive the second cleaning component 1 to roll, thus adsorbing dust from the first cleaning component 2 onto the second cleaning component 1. In other words, by transferring dust from the surface of the moving workpiece 3 to the second cleaning component 1 through the first cleaning component 2, the outer surface of the moving workpiece 3 can be effectively cleaned, achieving a dust removal effect, and the structure is relatively simple. An inkjet printing device 7 of this application embodiment includes the above-described electrostatic dust removal mechanism 70. It is understandable that the inkjet printing device 7 can have all the technical features and beneficial effects of the electrostatic dust removal mechanism 70 described above.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this (utility model or utility model), and are not intended to limit it; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electrostatic precipitation mechanism, characterized by, The cleaning component is used to clean the outer surface of a moving workpiece, comprising: a first cleaning component and a second cleaning component, wherein the working surface of the first cleaning component is in rolling contact with the working surface of the second cleaning component; when the first cleaning component is in rolling contact with the outer surface of the moving workpiece, the first cleaning component drives the second cleaning component to roll under the drive of the moving workpiece.

2. The electrostatic precipitation mechanism according to claim 1, wherein It also includes a fixing component, which includes a sliding shaft and a support component, one end of which is fixedly connected to the support component; the first cleaning component includes a first fixing shaft, the second cleaning component includes a second fixing shaft, and the other end of the sliding shaft is slidably connected to the first fixing shaft and the second fixing shaft respectively.

3. The electrostatic precipitation mechanism of claim 2, wherein, It also includes an elastic element, one end of which is fixedly connected to the support element, and the other end is connected to the second fixed shaft.

4. The electrostatic precipitation mechanism of claim 2, wherein, The first cleaning assembly further includes a first rotating member, and the first fixed shaft passes through the axis of the first rotating member and is movably connected to the first rotating member; the second cleaning assembly further includes a second rotating member, and the second fixed shaft passes through the axis of the second rotating member and is movably connected to the second rotating member; the working surface of the first rotating member and the working surface of the second rotating member are in rolling contact.

5. The electrostatic precipitation mechanism of claim 4, wherein, The working surfaces of the first rotating component and the second rotating component are both convex outward arc surfaces, and the distance from the axis of the second rotating component to the arc surface is greater than the distance from the axis of the first rotating component to the arc surface.

6. The electrostatic precipitation mechanism of claim 4, wherein, The second cleaning component further includes a third fixed shaft and a third rotating component. The third fixed shaft passes through the axis of the third rotating component and is movably connected to the third rotating component. The working surface of the third rotating component is connected to the working surface of the second rotating component via an adhesive tape.

7. The electrostatic precipitation mechanism of claim 6, wherein, The third fixed shaft is fixedly connected to the support member.

8. The electrostatic precipitation mechanism of claim 4, wherein, The surface of the second rotating component is provided with an adhesive layer.

9. The electrostatic precipitation mechanism of claim 8, wherein, The first rotating component is made of rubber; the adhesive layer has a greater adhesiveness than the surface adhesiveness of the first rotating component.

10. An inkjet printing apparatus, characterized by comprising: Includes the electrostatic dust removal mechanism as described in any one of claims 1 to 9.

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