PCB solder resist ink roller coating device

Abstract

The utility model discloses a kind of PCB solder mask ink roller coating devices, it is related to PCB solder mask technical field, including the limiting mechanism including support plate, antiskid block, clamping block and sliding assembly, the support plate is set on the main body upside, the antiskid block is provided with two, two The antiskid block is all set on the support plate upper surface, the clamping block is provided with two, two The clamping block opposite side is fixedly connected in the antiskid block opposite side, the sliding assembly is provided with two, two The sliding assembly is all set on the clamping block lower surface.The utility model is set by setting limiting mechanism, it solves that manual conveying PCB board cannot be accurately positioned to solder mask roller middle position, makes different batch product quality consistency poor, increases defective rate, simultaneously reduces production efficiency, cannot satisfy the precision requirement of scale production problem.

Description

Technical Field

[0001] This utility model relates to the field of PCB solder resist technology, specifically a PCB solder resist ink roller coating device. Background Technology

[0002] PCB solder mask is an insulating ink layer coated on the surface of a circuit board. It prevents solder bridging and short circuits, protecting the circuitry. It is applied to non-pad areas via screen printing or exposure and development processes. It possesses characteristics such as high temperature resistance and strong insulation, preventing solder overflow during component soldering. Available in various colors (e.g., green, blue, red), it serves not only functional purposes but also marks circuits and aids in troubleshooting. It is a crucial process in PCB manufacturing, ensuring electrical performance and reliability. The ink roller coating device is paramount in PCB solder mask production. It ensures uniform ink coating, guaranteeing consistent solder mask thickness and avoiding uneven thickness and air bubbles caused by manual operation. By precisely controlling roller pressure and speed, the roller coating device improves ink adhesion uniformity, ensuring the insulation and solderability of the solder mask layer. It also increases production efficiency, adapting to large-scale production, and is a core piece of equipment for ensuring the stability of PCB solder mask quality.

[0003] In the process of using common PCB solder resist ink roller coating equipment, workers need to manually feed the PCB board between the solder resist rollers. However, manual feeding of the PCB board cannot accurately position it to the middle of the solder resist roller, resulting in poor quality consistency between different batches of products, increasing the defect rate, reducing production efficiency, and failing to meet the precision requirements of large-scale production. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a PCB solder resist ink roller coating device, which has the advantage of limiting the PCB board and solves the problem that manual conveying of PCB boards cannot accurately position them to the middle position of the solder resist roller, resulting in poor quality consistency between different batches of products, increased defect rate, reduced production efficiency, and inability to meet the precision requirements of large-scale production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PCB solder resist ink roller coating device, comprising a main body, solder resist rollers and a driving mechanism, wherein the driving mechanism is fixedly connected to the upper surface of the main body, a plurality of solder resist rollers are provided, and the plurality of solder resist rollers are fixedly connected to the inner wall of the driving mechanism, and a limit mechanism is provided on the upper surface of the main body;

[0006] The limiting mechanism includes a support plate, anti-slip blocks, clamping blocks, and sliding components. The support plate is disposed on the upper side of the main body. There are two anti-slip blocks, both of which are disposed on the upper surface of the support plate. There are two clamping blocks, one of which is fixedly connected to the opposite side of the anti-slip blocks. There are two sliding components, both of which are disposed on the lower surface of the clamping blocks.

[0007] In a preferred embodiment of the present invention, the sliding component includes a first sliding groove and a sliding block. The first sliding groove is formed on the upper surface of the support plate, the outer surface of the sliding block is slidably connected to the inner wall of the first sliding groove, and the upper surface of the sliding block is fixedly connected to the lower surface of the clamping block.

[0008] As a preferred embodiment of this utility model, the lower end face of the sliding block is provided with a stroke component. There are two stroke components, each including a connecting column, a roller, and a stroke groove. The upper end face of the connecting column is fixedly connected to the lower surface of the sliding block. The upper surface of the roller is rotatably connected to the lower end face of the connecting column through a bearing. The stroke groove is opened on the upper surface of the main body, and the inner wall of the stroke groove is slidably connected to the outer surface of the roller.

[0009] In a preferred embodiment of this invention, a driving assembly is provided on the lower surface of the support plate. The driving assembly includes a transmission block, a second sliding groove, a threaded rod, and a servo motor. The upper surface of the transmission block is fixedly connected to the lower surface of the support plate. The second sliding groove is formed on the upper surface of the main body. The inner wall of the second sliding groove is slidably connected to the outer surface of the transmission block. The outer surface of the threaded rod is rotatably connected to the inside of the transmission block via a thread. The outer surface of the threaded rod is rotatably connected to the inner wall of the main body via a bearing. The output end of the servo motor is fixedly connected to the front end face of the threaded rod.

[0010] As a preferred embodiment of this utility model, a fixing sleeve is fixedly connected to the outer surface of the servo motor, and the rear end face of the fixing sleeve is fixedly connected to the front surface of the main body.

[0011] As a preferred embodiment of this utility model, the upper surface of the support plate is provided with a transmission assembly. There are two transmission assemblies, each including a toothed plate, a first gear, and a support column. The lower surface of the toothed plate is fixedly connected to the upper surface of the support plate. The upper surface of the toothed plate and the outer surface of the first gear are in a meshing relationship. The inner wall of the first gear is rotatably connected to the outer surface of the support column through a bearing. The opposite end of the support column is fixedly connected to the outer surface of the main body.

[0012] As a preferred embodiment of the present invention, a cleaning component is provided on the upper side of the first gear. The cleaning component includes a second gear and a cleaning roller. There are two second gears. The outer surfaces of the two second gears are meshed with the outer surface of the first gear. The inner wall of the second gear is fixedly connected to the outer surface of the cleaning roller. The left and right ends of the cleaning roller are rotatably connected to the inner wall of the main body through bearings.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model solves the problem that manual conveying of PCB boards cannot be accurately positioned to the middle of the solder resist rollers, resulting in poor quality consistency between different batches of products, increased defect rate, reduced production efficiency, and inability to meet the precision requirements of large-scale production by setting a limiting mechanism. By setting a limiting mechanism, the PCB board can be prevented from shifting when entering between the solder resist rollers, so as to prevent the PCB board from colliding with the outer surface of the device and being damaged during solder resisting.

[0015] 2. This utility model, by setting up a sliding component, a stroke component, a driving component, and a fixing sleeve, enables the PCB board to be conveyed into the solder resist rollers without manual feeding. By setting up the stroke component and the sliding component, the clamping block can be automatically driven to move closer to the PCB board.

[0016] 3. By setting up a transmission component and a cleaning component, this utility model can perform simple cleaning on the surface of the PCB board during the conveying of the PCB board, sweeping away floating dust and small particulate impurities on the surface of the PCB board, thereby improving the quality of the PCB board after solder masking. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 Exploded view of the stroke assembly, drive assembly, and retaining sleeve;

[0019] Figure 3 This is a schematic diagram of an explosion of a limit mechanism;

[0020] Figure 4 This is a three-dimensional schematic diagram of the transmission and cleaning components.

[0021] In the diagram: 1. Main body; 2. Welding resist roller; 3. Drive mechanism; 4. Limiting mechanism; 41. Support plate; 42. Anti-slip block; 43. Clamping block; 44. Sliding assembly; 441. First slide groove; 442. Sliding block; 5. Stroke assembly; 51. Connecting column; 52. Roller; 53. Stroke groove; 6. Drive assembly; 61. Transmission block; 62. Second slide groove; 63. Threaded rod; 64. Servo motor; 7. Fixing sleeve; 8. Transmission assembly; 81. Tooth plate; 82. First gear; 83. Support column; 9. Cleaning assembly; 91. Second gear; 92. Cleaning roller. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Example 1

[0027] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a PCB solder resist ink roller coating device, including a main body 1, a solder resist roller 2 and a driving mechanism 3. The driving mechanism 3 is fixedly connected to the upper surface of the main body 1. A plurality of solder resist rollers 2 are provided, and the plurality of solder resist rollers 2 are fixedly connected to the inner wall of the driving mechanism 3. A limit mechanism 4 is provided on the upper surface of the main body 1.

[0028] The limiting mechanism 4 includes a support plate 41, anti-slip blocks 42, clamping blocks 43, and sliding components 44. The support plate 41 is disposed on the upper side of the main body 1. There are two anti-slip blocks 42, both of which are disposed on the upper surface of the support plate 41. There are two clamping blocks 43, with one side of each clamping block 43 fixedly connected to the opposite side of the anti-slip blocks 42. There are two sliding components 44, both of which are disposed on the lower surface of the clamping blocks 43.

[0029] Specifically, by setting the limiting mechanism 4, the PCB board can be prevented from shifting when it enters between the solder resist rollers 2, so as to prevent the PCB board from colliding with the outer surface of the device and being damaged during solder resisting.

[0030] Furthermore, the PCB board is placed on the upper surface of the support plate 41, and then the two clamping blocks 43 are brought closer to the PCB board. The clamping blocks 43 can drive the anti-sliding block 42 to move closer to the PCB board until the anti-sliding block 42 is in contact with the left and right sides of the PCB board, thus completing the limitation and fixation of the PCB board.

[0031] Example 2

[0032] The second embodiment of this utility model provides a PCB solder resist ink roller coating device. The sliding component 44 includes a first slide groove 441 and a sliding block 442. The first slide groove 441 is opened on the upper surface of the support plate 41. The outer surface of the sliding block 442 is slidably connected to the inner wall of the first slide groove 441. The upper surface of the sliding block 442 is fixedly connected to the lower surface of the clamping block 43.

[0033] The lower end face of the sliding block 442 is provided with a stroke component 5. There are two stroke components 5, each including a connecting post 51, a roller 52 and a stroke groove 53. The upper end face of the connecting post 51 is fixedly connected to the lower surface of the sliding block 442. The upper surface of the roller 52 is rotatably connected to the lower end face of the connecting post 51 through a bearing. The stroke groove 53 is opened on the upper surface of the main body 1. The inner wall of the stroke groove 53 is slidably connected to the outer surface of the roller 52.

[0034] A drive assembly 6 is provided on the lower surface of the support plate 41. The drive assembly 6 includes a transmission block 61, a second slide groove 62, a threaded rod 63, and a servo motor 64. The upper surface of the transmission block 61 is fixedly connected to the lower surface of the support plate 41. The second slide groove 62 is opened on the upper surface of the main body 1. The inner wall of the second slide groove 62 is slidably connected to the outer surface of the transmission block 61. The outer surface of the threaded rod 63 is rotatably connected to the inside of the transmission block 61 through a thread. The outer surface of the threaded rod 63 is rotatably connected to the inner wall of the main body 1 through a bearing. The output end of the servo motor 64 is fixedly connected to the front end face of the threaded rod 63.

[0035] A fixing sleeve 7 is fixedly connected to the outer surface of the servo motor 64, and the rear end face of the fixing sleeve 7 is fixedly connected to the front surface of the main body 1.

[0036] Specifically, by setting the drive component 6, the PCB board can be fed into the solder resist rollers 2 without manual feeding. By setting the stroke component 5 and the sliding component 44, the clamping block 43 can be automatically driven to move closer to the PCB board.

[0037] Furthermore, the servo motor 64 drives the threaded rod 63 to rotate. The threaded rod 63 drives the transmission block 61 to move backward along the inner wall of the second slide groove 62 through the thread. The transmission block 61 then drives the support plate 41 to move backward together. The support plate 41 can drive the connecting column 51 through the sliding block 442. The connecting column 51 then drives the roller 52 to move along the inner wall of the stroke groove 53. At this time, the roller 52 drives the sliding block 442 to move to the opposite side along the inner wall of the first slide groove 441 through the connecting column 51. The sliding block 442 then drives the clamping block 43 to move together.

[0038] Example 3

[0039] The second embodiment of this utility model provides a PCB solder resist ink roller coating device. A transmission component 8 is provided on the upper surface of the support plate 41. There are two transmission components 8. The two transmission components 8 include a toothed plate 81, a first gear 82 and a support column 83. The lower surface of the toothed plate 81 is fixedly connected to the upper surface of the support plate 41. The upper surface of the toothed plate 81 and the outer surface of the first gear 82 are meshed with each other. The inner wall of the first gear 82 and the outer surface of the support column 83 are rotatably connected to the outer surface of the support column 83 through a bearing. The opposite end of the support column 83 is fixedly connected to the outer surface of the main body 1.

[0040] A cleaning component 9 is provided on the upper side of the first gear 82. The cleaning component 9 includes a second gear 91 and a cleaning roller 92. There are two second gears 91. The outer surfaces of the two second gears 91 are meshed with the outer surface of the first gear 82. The inner wall of the second gear 91 is fixedly connected to the outer surface of the cleaning roller 92. The left and right ends of the cleaning roller 92 are rotatably connected to the inner wall of the main body 1 through bearings.

[0041] Specifically, by setting up the transmission component 8 and the cleaning component 9, a simple cleaning of the upper surface of the PCB board can be achieved during the conveying of the PCB board, removing floating dust and small particulate impurities from the PCB board surface, thereby improving the quality of the PCB board after solder masking.

[0042] Furthermore, by moving the support plate 41 to the rear, the support plate 41 can drive the toothed plate 81 to move backward together, so that the toothed plate 81 meshes with the first gear 82. The first gear 82 rotates around the support column 83 as the rotation center. At the same time, the first gear 82 meshes with the second gear 91, and the second gear 91 drives the cleaning roller 92 to rotate. The cleaning roller 92 performs simple cleaning on the upper surface of the PCB board.

[0043] Working principle:

[0044] The PCB board is placed on the upper surface of the support plate 41. Then, the servo motor 64 drives the threaded rod 63 to rotate. The threaded rod 63 drives the transmission block 61 to move backward along the inner wall of the second slide groove 62 through the thread. The transmission block 61 drives the support plate 41 to move backward together. The support plate 41 can drive the toothed plate 81 to move backward together, so that the toothed plate 81 meshes with the first gear 82. The first gear 82 rotates around the support column 83 as the rotation center. At the same time, the first gear 82 meshes with the second gear 91. The second gear 91 drives the cleaning roller 92 to rotate. The cleaning roller 92 performs simple cleaning on the upper surface of the PCB board. Meanwhile, the support plate 41 can drive the connecting column 51 through the sliding block 442. The connecting column 51 drives the roller 52 to move along the inner wall of the travel groove 53. At this time, the roller 52 drives the sliding block 442 to move to the opposite side along the inner wall of the first slide groove 441 through the connecting column 51. The sliding block 442 drives the clamping block 43 to move together. The two clamping blocks 43 move closer to the PCB board. The clamping blocks 43 can drive the anti-sliding block 42 to move closer to the PCB board until the anti-sliding block 42 is in contact with the left and right sides of the PCB board. Only then can the PCB board be limited and fixed. When the PCB board comes into contact with the solder resist roller 2, the anti-sliding block 42 will no longer be in contact with the PCB board as the travel groove 53 moves along its trajectory. One side of the PCB board enters between the solder resist rollers 2 to perform solder resist treatment on the PCB tube.

[0045] In summary, the combination of the main body 1, solder resist roller 2, drive mechanism 3, limit mechanism 4, stroke assembly 5, drive assembly 6, fixing sleeve 7, transmission assembly 8, and cleaning assembly 9 solves the problem that manual conveying of PCB boards cannot accurately position them to the middle of the solder resist roller, resulting in poor quality consistency between different batches of products, increased defect rate, reduced production efficiency, and inability to meet the precision requirements of large-scale production.

[0046] The motors, screws, and gears used in this application can be additionally equipped with protective measures that are common knowledge in the field of this technology under different usage environments. These measures include, but are not limited to, the following: protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing. These are common technical means used by those skilled in the art.

[0047] It should be noted that (motor, screw and gear) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0048] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0049] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0050] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A PCB solder resist ink roller coating device, characterized in that: It includes a main body (1), a resist roller (2) and a drive mechanism (3). The drive mechanism (3) is fixedly connected to the upper surface of the main body (1). There are several resist rollers (2). Several resist rollers (2) are fixedly connected to the inner wall of the drive mechanism (3). A limit mechanism (4) is provided on the upper surface of the main body (1). The limiting mechanism (4) includes a support plate (41), a block (42), a clamping block (43), and a sliding assembly (44). The support plate (41) is disposed on the upper side of the main body (1). There are two blocks (42), both of which are disposed on the upper surface of the support plate (41). There are two clamping blocks (43), which are fixedly connected to the opposite side of the block (42) on opposite sides. There are two sliding assemblies (44), both of which are disposed on the lower surface of the clamping block (43).

2. The PCB solder resist ink roller coating device according to claim 1, characterized in that: The sliding assembly (44) includes a first groove (441) and a sliding block (442). The first groove (441) is formed on the upper surface of the support plate (41). The outer surface of the sliding block (442) is slidably connected to the inner wall of the first groove (441). The upper surface of the sliding block (442) is fixedly connected to the lower surface of the clamping block (43).

3. The PCB solder resist ink roller coating device according to claim 2, characterized in that: The lower end face of the sliding block (442) is provided with a stroke component (5). There are two stroke components (5). The two stroke components (5) include a connecting column (51), a roller (52) and a stroke groove (53). The upper end face of the connecting column (51) is fixedly connected to the lower surface of the sliding block (442). The upper surface of the roller (52) is rotatably connected to the lower end face of the connecting column (51) through a bearing. The stroke groove (53) is opened on the upper surface of the main body (1). The inner wall of the stroke groove (53) is slidably connected to the outer surface of the roller (52).

4. The PCB solder resist ink roller coating device according to claim 1, characterized in that: A drive assembly (6) is provided on the lower surface of the support plate (41). The drive assembly (6) includes a transmission block (61), a second slide groove (62), a threaded rod (63), and a servo motor (64). The upper surface of the transmission block (61) is fixedly connected to the lower surface of the support plate (41). The second slide groove (62) is opened on the upper surface of the main body (1). The inner wall of the second slide groove (62) is slidably connected to the outer surface of the transmission block (61). The outer surface of the threaded rod (63) is rotatably connected to the inside of the transmission block (61) by a thread. The outer surface of the threaded rod (63) is rotatably connected to the inner wall of the main body (1) by a bearing. The output end of the servo motor (64) is fixedly connected to the front end face of the threaded rod (63).

5. A PCB solder resist ink roller coating device according to claim 4, characterized in that: The outer surface of the servo motor (64) is fixedly connected to a fixing sleeve (7), and the rear end face of the fixing sleeve (7) is fixedly connected to the front surface of the main body (1).

6. The PCB solder resist ink roller coating device according to claim 1, characterized in that: The upper surface of the support plate (41) is provided with a transmission assembly (8). There are two transmission assemblies (8). The two transmission assemblies (8) include a toothed plate (81), a first gear (82), and a support column (83). The lower surface of the toothed plate (81) is fixedly connected to the upper surface of the support plate (41). The upper surface of the toothed plate (81) and the outer surface of the first gear (82) are meshed with each other. The inner wall of the first gear (82) and the outer surface of the support column (83) are rotatably connected by a bearing. The opposite end of the support column (83) is fixedly connected to the outer surface of the main body (1).

7. A PCB solder resist ink roller coating device according to claim 6, characterized in that: A cleaning assembly (9) is provided on the upper side of the first gear (82). The cleaning assembly (9) includes a second gear (91) and a cleaning roller (92). There are two second gears (91). The outer surfaces of the two second gears (91) are meshed with the outer surface of the first gear (82). The inner wall of the second gear (91) is fixedly connected to the outer surface of the cleaning roller (92). The left and right ends of the cleaning roller (92) are rotatably connected to the inner wall of the main body (1) through bearings.

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