Downward-pressing type dust removal mechanism
By using floating joints and guide rail slide assembly in the down-pressure dust removal mechanism, the lateral force problem caused by uneven force during the down-pressure process is solved, and higher reliability and life are achieved.
Patent Information
- Application Number
- CN202421298366.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The existing down-pressure dust removal mechanism is unevenly subjected to stress during the down-pressure process, resulting in lateral force generated by the telescopic end of the cylinder, increasing the risk of friction and damage.
The floating joint and the guide rail slide assembly are used to prevent the cylinder output bearing from lateral forces through the floating joint, and the guide rail slide assembly is in turn subjected to the lateral forces formed by the roller mount on the drive assembly.
It effectively avoids the problems of cage or long-term wear and failure caused by excessive lateral force of the cylinder, and improves the reliability and life of the dust removal mechanism.
Smart Images
Figure CN222431881U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screen printing, in particular to a downward pressure dust removal mechanism. Background Art
[0002] Screen printing is a printing technology that uses screen printing equipment to print designed patterns on the products to be printed. Screen printing equipment is generally equipped with a dust removal mechanism for dust removal of the substrate, and the most commonly used is a downward pressure roller dust removal. Most of the existing downward pressure dust removal mechanisms use a single dust removal cylinder, which is fixedly connected to the roller frame through the telescopic end of the cylinder. The cylinder telescopes and drives the dust removal roller to press down on the surface of the substrate and apply a certain pressure. The dust removal roller is generally long. During the downward pressure process, the force may be uneven, which will form a lateral force on the telescopic end of the cylinder, increasing the friction of the telescopic end in the cylinder body. When lifting up and down and returning to the standby position, the telescopic end is easy to get stuck, and the cylinder is also easy to be damaged.
[0003] Therefore, the prior art needs to be improved. Utility Model Content
[0004] In view of this, the utility model provides a downward pressure dust removal mechanism for solving the problems in the prior art.
[0005] In order to achieve one or part or all of the above-mentioned purposes or other purposes, the utility model proposes a downward pressure dust removal mechanism, including a dust sticking roller assembly, a roller mounting frame and a driving assembly, wherein the dust sticking roller assembly is installed on the roller mounting frame, and the driving assembly is used to drive the roller mounting frame to move up and down; the driving assembly includes a cylinder, a floating joint, a lifting plate and two fixed side plates, the output shaft of the cylinder is floatingly connected to the roller mounting frame through the floating joint, the cylinder body of the cylinder is installed on the lifting plate, the two fixed side plates are fixedly connected to the roller mounting frame or are integrally formed, and the two fixed side plates are respectively connected to the lifting plate through a pair of guide rail slider assemblies so as to be relatively slidable.
[0006] Preferably, each pair of the guide rail and slider assemblies includes a guide rail and a slider, the guide rail is fixedly mounted on the side of the lifting plate, and the slider is fixedly mounted on the fixed side plate, the two guide rails are parallel to the output shaft of the cylinder, and the output shaft of the cylinder is located between the two guide rails.
[0007] Preferably, the roller mounting frame includes a mounting frame main board and two roller mounting side plates, and the two roller mounting side plates are fixedly mounted on the mounting frame main board; the sticky roller assembly includes a first sticky roller and a second sticky roller, and the first sticky roller and the second sticky roller are mounted between the two roller mounting side plates, the first sticky roller is located below the second sticky roller, and the first sticky roller and the second sticky roller are parallel to and abut against each other.
[0008] Preferably, the first dust-sticking roller comprises a first roller body and mounting seats arranged at both ends of the first roller body, the first roller body is mounted in cooperation with the mounting seats via a first bearing, and the mounting seats are fixedly connected to the roller mounting side plates; the second dust-sticking roller comprises a second roller body and a central axis, the second roller body is mounted in cooperation with the central axis via a second bearing, a linear slide groove is respectively provided on each of the roller mounting side plates, and both ends of the central axis are located in the linear slide grooves.
[0009] Preferably, the length direction of the linear slide groove points to the central axis of the first drum body.
[0010] Preferably, the linear slide groove is an oblique slide groove, and the second sticky roller is located obliquely above the first sticky roller.
[0011] Preferably, a material taking opening is provided on the roller mounting side plate, the material taking opening is connected with the linear slide groove and the outside of the roller mounting side plate, and the material taking opening is used for taking out and putting in the second dust-sticking roller.
[0012] Preferably, a limiting hole is further provided on the roller mounting side plate at the position of the material taking opening for inserting a limiting pin or a screw or a bolt, thereby preventing the central axis of the second dust-sticking roller from sliding out of the material taking opening.
[0013] Preferably, the second dust-sticking roller also includes two bearing seats and two roller blocks, the bearing seat is provided with a bearing chamber, the second bearing is located in the bearing chamber, the roller block is clamped on the central axis at the outside of the bearing seat, and the second roller body includes a supporting cylinder and a consumable part wound on the supporting cylinder, and the two ends of the supporting cylinder are respectively mounted on the two bearing seats.
[0014] Preferably, a limit plate is further mounted on the main board of the mounting frame, and the limit plate is used to limit the highest position that the second dust-sticking roller can reach, and the limit plate is detachable or rotatable.
[0015] Implementing the embodiments of the present utility model will have the following beneficial effects:
[0016] A floating joint is used in the drive device to prevent the output shaft of the cylinder from being subjected to large lateral forces. Instead, the guide rail slider assembly is used to bear the lateral force generated by the roller mounting frame on the drive assembly, which can effectively prevent the cylinder from getting stuck or failing due to long-term wear and tear due to excessive lateral forces. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] in:
[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a downward pressure dust removal mechanism according to an embodiment of the utility model;
[0020] Figure 2 for Figure 1 A magnified view of the part A in the middle;
[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of a driving device in one embodiment of the utility model;
[0022] Figure 4 This is a side structural schematic diagram of a downward pressure dust removal mechanism according to an embodiment of the utility model;
[0023] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along section BB;
[0024] Figure 6 for Figure 5 Enlarged view of detail C in the middle.
[0025] The reference numerals are as follows: 1. sticky roller assembly; 11. first sticky roller; 111. first roller body; 112. mounting seat; 113. first bearing; 12. second sticky roller; 121. second roller body; 1211. supporting body; 1212. consumable part; 122. center axis; 123. second bearing; 124. bearing seat; 125. roller stopper; 2. roller mounting frame; 21. mounting frame main board; 22. roller mounting side plate; 221. mounting hole; 222. linear slide; 223. material taking opening; 224. limiting hole; 3. driving assembly; 31. cylinder; 32. floating joint; 33. lifting plate; 34. fixed side plate; 35. guide rail; 36. slider; 4. limiting plate. DETAILED DESCRIPTION
[0026] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0028] It is understood that the singular forms "a", "an" and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.
[0029] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to another element or there may be a centered element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only. In the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle" and the like is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing the present utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, the above-mentioned part of the terms may be used to express other meanings in addition to being used to express orientation or positional relationship, for example, the term "upper" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to the specific circumstances.
[0030] In addition, the terms "disposed", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0031] Reference Figures 1 to 6 An embodiment of the utility model provides a downward pressure dust removal mechanism, including a dust sticking roller assembly 1, a roller mounting frame 2 and a driving assembly 3, wherein the dust sticking roller assembly 1 is mounted on the roller mounting frame 2, and the driving assembly 3 is used to drive the roller mounting frame 2 to move up and down; the driving assembly 3 includes a cylinder 31, a floating joint 32, a lifting plate 33 and two fixed side plates 34, the output shaft of the cylinder 31 is floatingly connected to the roller mounting frame 2 through the floating joint 32, the cylinder body of the cylinder 31 is mounted on the lifting plate 33, the two fixed side plates 34 are fixedly connected to the roller mounting frame 2 or are integrally formed, and the two fixed side plates 34 are respectively connected to the lifting plate 33 through a pair of guide rail slider assemblies so as to be relatively slidable.
[0032] The present embodiment provides a downward pressure dust removal mechanism which uses a floating joint 32 to prevent the output shaft of the cylinder 31 from being subjected to a large lateral force. Instead, the guide rail slider assembly is used to bear the lateral force generated by the roller mounting frame 2 on the driving assembly 3, which can effectively prevent the cylinder 31 from getting stuck or failing due to long-term wear and tear due to excessive lateral force.
[0033] In some optional embodiments, such as Figure 1 , Figure 3 and Figure 4 As shown, each pair of the guide rail and slider assembly includes a guide rail 35 and a slider 36. The guide rail 35 is fixedly installed on the side of the lifting plate 33, and the slider 36 is fixedly installed on the fixed side plate 34. The two guide rails 35 are parallel to the output shaft of the cylinder 31, and the output shaft of the cylinder 31 is located between the two guide rails 35.
[0034] In some optional embodiments, such as Figures 1 to 6 As shown, the roller mounting frame 2 includes a mounting frame main board 21 and two roller mounting side plates 22, and the two roller mounting side plates 22 are fixedly mounted on the mounting frame main board 21; the sticky roller assembly 1 includes a first sticky roller 11 and a second sticky roller 12, the first sticky roller 11 and the second sticky roller 12 are mounted between the two roller mounting side plates 22, the first sticky roller 11 is located below the second sticky roller 12, and the first sticky roller 11 and the second sticky roller 12 are parallel to each other and abut against each other, wherein the viscosity of the first sticky roller 11 is lower than that of the second sticky roller 12. When used, the first sticky roller 11 contacts the product to adhere to the dust and debris on the product, and the second sticky roller 12 is used to adhere to the dust and debris on the first sticky roller 11.
[0035] In some optional embodiments, such as Figure 1 , Figure 2 , Figure 4 , Figure 5and Figure 6 As shown, the first sticky roller 11 includes a first roller body 111 and mounting seats 112 arranged at both ends of the first roller body 111, the first roller body 111 is mounted in cooperation with the mounting seats 112 through a first bearing 113, the mounting seats 112 are fixedly connected to the roller mounting side plate 22, specifically, the roller mounting side plate 22 is provided with a mounting hole 221, the mounting seat 112 is provided with a threaded hole, and the mounting seat 112 is fixedly connected to the roller mounting side plate 22 through a threaded connector (not shown in the drawings); the second sticky roller 12 includes a second roller body 121 and a central axis 122, the second roller body 121 is matched with the central axis 122 through a second bearing 123, each of the roller mounting side plates 22 is respectively provided with a linear slide groove 222, and the two ends of the central axis 122 are located in the linear slide groove 222.
[0036] In some optional embodiments, such as Figure 4 As shown, the length direction of the linear slide groove 222 points to the central axis of the first roller body 111. In this way, the position where the first sticky roller 11 and the second sticky roller 12 meet is on the same plane as the central axes of the two. During operation, the radial force generated by the first sticky roller 11 on the second sticky roller 12 is parallel to the length direction of the linear slide groove 222, that is, the friction force of the central axis 122 of the second sticky roller 12 in the linear slide groove 222 is minimized.
[0037] In some optional embodiments, such as Figure 1 , Figure 2 , Figure 4 As shown, the linear slide groove 222 is an oblique slide groove, and the second dust-sticking roller 12 is located obliquely above the first dust-sticking roller 11. With such a design, during operation, the second dust-sticking roller 12 always contacts the first dust-sticking roller 11 by its own gravity, and is always supported by the lower side of the linear slide groove 222, which can significantly reduce the lateral jumping of the second dust-sticking roller 12 during operation, thereby ensuring an efficient adhesion and dust removal effect.
[0038] In some optional embodiments, such as Figure 1 , Figure 2 , Figure 4 As shown, a material taking opening 223 is provided on the roller mounting side plate 22, and the material taking opening 223 is connected to the linear slide 222 and the outside of the roller mounting side plate 22. The material taking opening 223 is used to take out and put in the second dust-sticking roller 12, that is, a new second dust-sticking roller 12 can be replaced after the consumables are used up.
[0039] In some optional embodiments, such as Figure 1 , Figure 2As shown, a limiting hole 224 is further provided on the roller mounting side plate 22 at the position of the material taking opening 223 for inserting a limiting pin or a screw or a bolt (not shown in the drawings) to prevent the central axis 122 of the second dust-sticking roller 12 from sliding out of the material taking opening 223.
[0040] In some optional embodiments, such as Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the second sticky roller 12 also includes two bearing seats 124 and two roller blocks 125, the bearing seat 124 is provided with a bearing chamber, the second bearing 123 is located in the bearing chamber, the roller block 125 is clamped on the central shaft 122 outside the bearing seat 124, and the second roller body 121 includes a support body 1211 and a consumable part 1212 wound on the support body 1211, and the two ends of the support body 1211 are respectively sleeved on the two bearing seats 124. The removed second sticky roller 12 can be replaced with a new second roller body 121 by loosening and removing the roller block 125, and other components can be reused.
[0041] In some optional embodiments, such as Figure 1 , Figure 4 , Figure 5 As shown, a limit plate 4 is also installed on the main board 21 of the mounting frame. The limit plate 4 is used to limit the highest position that the second dust-sticking roller 12 can move up in the linear slide groove 222. The limit plate 4 is detachable or rotatable.
[0042] The multi-window printing platform provided by the embodiment of the utility model has the following beneficial effects:
[0043] The floating joint 32 in the driving device prevents the output shaft of the cylinder 31 from being subjected to a large lateral force. Instead, the guide rail slider assembly bears the lateral force generated by the roller mounting frame 2 on the driving assembly 3, which can effectively prevent the cylinder 31 from getting stuck or failing due to long-term wear due to excessive lateral force.
[0044] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.
Claims
1. A downward pressure dust removal mechanism, characterized in that: It includes a dust sticking roller assembly, a roller mounting frame and a driving assembly, wherein the dust sticking roller assembly is mounted on the roller mounting frame, and the driving assembly is used to drive the roller mounting frame to move up and down; the driving assembly includes a cylinder, a floating joint, a lifting plate and two fixed side plates, the output shaft of the cylinder is floatingly connected to the roller mounting frame through the floating joint, the cylinder body of the cylinder is mounted on the lifting plate, the two fixed side plates are fixedly connected to the roller mounting frame or are integrally formed, and the two fixed side plates are respectively connected to the lifting plate through a pair of guide rail slider assemblies so as to be relatively slidable.
2. The downward pressure dust removal mechanism according to claim 1, characterized in that: Each pair of guide rail and slider assemblies includes a guide rail and a slider, wherein the guide rail is fixedly mounted on the side of the lifting plate, and the slider is fixedly mounted on the fixed side plate, and the two guide rails are parallel to the output shaft of the cylinder, and the output shaft of the cylinder is located between the two guide rails.
3. The downward pressure dust removal mechanism according to claim 1, characterized in that: The roller mounting frame includes a mounting frame main board and two roller mounting side plates, and the two roller mounting side plates are fixedly mounted on the mounting frame main board; the sticky roller assembly includes a first sticky roller and a second sticky roller, and the first sticky roller and the second sticky roller are mounted between the two roller mounting side plates, the first sticky roller is located below the second sticky roller, and the first sticky roller and the second sticky roller are parallel to each other and abut against each other.
4. The downward pressure dust removal mechanism according to claim 3, characterized in that: The first dust-sticking roller comprises a first roller body and mounting seats arranged at both ends of the first roller body, the first roller body is mounted in cooperation with the mounting seats via a first bearing, and the mounting seats are fixedly connected to the roller mounting side plates; the second dust-sticking roller comprises a second roller body and a central axis, the second roller body is matched with the central axis via a second bearing, a linear slide groove is respectively provided on each of the roller mounting side plates, and both ends of the central axis are located in the linear slide grooves.
5. The downward pressure dust removal mechanism according to claim 4, characterized in that: The length direction of the linear slide groove points to the central axis of the first drum body.
6. The downward pressure dust removal mechanism according to claim 4 or 5, characterized in that: The linear slide groove is an oblique slide groove, and the second dust-sticking roller is located obliquely above the first dust-sticking roller.
7. The downward pressure dust removal mechanism according to claim 4, characterized in that: The roller mounting side plate is provided with a material taking opening, the material taking opening is connected with the linear slide groove and the outside of the roller mounting side plate, and the material taking opening is used for taking out and putting in the second dust sticking roller.
8. The downward pressure dust removal mechanism according to claim 7, characterized in that: The roller mounting side plate is also provided with a limiting hole at the material taking opening position for inserting a limiting pin or a screw or a bolt, thereby preventing the central axis of the second dust sticking roller from sliding out of the material taking opening.
9. The downward pressure dust removal mechanism according to claim 4, characterized in that: The second dust-sticking roller also includes two bearing seats and two roller blocks. The bearing seat is provided with a bearing chamber, the second bearing is located in the bearing chamber, the roller block is clamped on the central axis at the outside of the bearing seat, and the second roller body includes a supporting cylinder and a consumable part wound on the supporting cylinder, and the two ends of the supporting cylinder are respectively mounted on the two bearing seats.
10. The downward pressure dust removal mechanism according to claim 4, characterized in that: A limit plate is also installed on the main board of the mounting frame. The limit plate is used to limit the highest position that the second dust-sticking roller can reach. The limit plate is detachable or rotatable.