Roller of circuit board horizontal processing equipment
By employing an alternating convex and concave roller structure in the horizontal circuit board processing equipment, the problems of insufficient or excessive chemical retention are solved, achieving moderate chemical retention, preventing foreign matter adhesion, and improving processing effect and production efficiency.
Patent Information
- Application Number
- CN202423293385.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The rollers in existing horizontal circuit board processing equipment do not retain chemicals well, and the chemical exchange is too fast or too slow, resulting in insufficient processing and easy adhesion of foreign matter.
The alternating arrangement of convex and concave rollers, with a reasonable ratio of diameter and length between the convex and concave rollers, creates a suitable retention effect for the medicine. Furthermore, the guide strip increases the pressure per unit area to prevent foreign matter from adhering.
This method achieves optimal solution retention, prevents foreign matter adhesion, improves treatment effectiveness, avoids problems of excessively fast or slow solution exchange, and enhances production efficiency.
Smart Images
Figure CN223899407U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board processing equipment, and in particular to a roller for a horizontal circuit board processing equipment. Background Technology
[0002] Horizontal processing equipment is inevitably used in the manufacturing process of circuit boards. The equipment usually involves spray-type chemical processing or water washing. The sprayed chemical or water needs to remain on the board surface for a certain period of time to allow the chemical to react with the board surface and achieve the desired treatment effect.
[0003] Currently, one type of roller structure is a pressure roller, which has a strong speed and effect in "removing" the chemical coating on the board surface during processing. The gap between the rollers is small, which prevents the circuit board from rolling or leaking. Therefore, it is difficult to achieve a residual effect on the board surface when chemical or water treatment is used. In addition, the pressure roller has a large contact area with the board surface to be processed during application, which can easily cause problems such as foreign matter adhering to the board surface.
[0004] Another type of roller structure is the sheet roller, which is thinner and the connecting rod that fixes and drives the roller is also thinner. Because the sprayed chemical solution has a large spray water pressure, the sheet roller and the thin connecting rod are unable to block the spray pressure, resulting in the problem of excessively rapid exchange of sprayed chemical solution. This will also cause problems of insufficient reaction and processing. If the spray pressure is reduced or the travel speed of the board to be processed is reduced, the production efficiency will be affected.
[0005] Based on the above background technology and problems, there is a need to provide a roller for a horizontal circuit board processing device that can form a roller that allows sprayed chemicals to remain but not excessively. Utility Model Content
[0006] This invention aims to solve the problems of existing horizontal circuit board processing equipment rollers, such as the rapid speed and effect of "driving away" the chemical solution on the circuit board surface, or the difficulty in retaining the chemical solution due to excessively rapid exchange. The invention provides a roller for horizontal circuit board processing equipment, wherein the roller is provided with alternating arrangement of several convex and concave rollers; the diameter of each concave roller is smaller than the diameter of the convex roller on one side; the diameter of the concave roller is 2 / 3 to 7 / 8 of the diameter of the convex roller; and the length of the concave roller is greater than or equal to 3 times that of the convex roller.
[0007] Preferably, the convex roller and the concave roller are arranged at an angle.
[0008] Preferably, the surface of the convex roller is provided with a plurality of raised stripe-shaped guide strips; the guide strips are set at an angle to the circular cross-section of the convex roller.
[0009] Optionally, the diameter of the concave roller is 1.0 mm to 8.0 mm smaller on each side than the diameter of the convex roller.
[0010] Optionally, the length of the concave roller is greater than or equal to five times that of the convex roller.
[0011] Optionally, the roller is provided with drive mounting ends at both ends, and the diameter of the drive mounting ends is less than or equal to the diameter of the concave roller.
[0012] Optionally, several of the rollers are arranged in parallel to each other to form a roller group structure.
[0013] Optionally, the convex rollers of the roller assembly are aligned with each other.
[0014] Optionally, the convex rollers of the roller assembly are arranged in a uniformly staggered manner.
[0015] Optionally, the rollers may be made of PVC, PP, PC, PET, PTFE, rubber, or ABS.
[0016] This invention features convex and concave rollers with a small height difference, and a large width between adjacent convex rollers. The convex rollers form a small contact area with the board surface, effectively preventing foreign matter from adhering to the board surface and preventing the sprayed solution from being "driven away" too quickly and failing to remain on the surface of the board. In addition, the larger diameter of the concave rollers effectively blocks the impact of the sprayed solution, while also creating a certain space with the surface of the board, preventing the sprayed solution from being exchanged too quickly on the surface of the board due to excessively loose gaps between the rollers, thus preventing it from failing to remain. The rollers of this invention can create a state where the solution can remain but not excessively, resulting in a moderate force of solution exchange. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0018] Figure 1 This is a three-dimensional structural diagram of a pressure roller assembly in the prior art;
[0019] Figure 2 This is a schematic diagram of the planar structure of a pressure roller assembly in the prior art;
[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of a prior art sheet roller assembly;
[0021] Figure 4 This is a schematic diagram of the planar structure of a prior art sheet roller assembly;
[0022] Figure 5 This is a three-dimensional structural diagram of the roller assembly according to this embodiment;
[0023] Figure 6 This is a schematic diagram of the planar structure of the roller assembly in this embodiment;
[0024] Figure 7 This is a schematic diagram of the planar structure of the roller assembly of the inclined convex roller in this embodiment;
[0025] Figure 8 This is a schematic diagram of the planar structure of the roller with guide strips according to this embodiment;
[0026] Figure 9 This is a schematic diagram of the planar structure of the roller assembly of the staggered convex rollers in this embodiment;
[0027] Figure 10 This is a schematic diagram of the planar structure of the roller assembly of the obliquely arranged, staggered convex rollers in this embodiment.
[0028] Attached image captions:
[0029]
[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0033] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0034] Please see Figures 1 to 2 ; Figure 1 This is a three-dimensional structural diagram of a pressure roller assembly in the prior art; Figure 2 This is a schematic diagram of the planar structure of a pressure roller assembly in the prior art.
[0035] The rollers in existing horizontal circuit board processing equipment generally have two structures:
[0036] One structure is Figures 1 to 2 The prior art pressure roller assembly 10X shown consists of a pressure roller 110X and a prior art transmission mounting end ① 120X. During the processing of the plate to be processed 100D, it is placed flat on the surface of the pressure roller 110X and moved forward by the pressure roller 110X. The prior art pressure roller assembly 10X is generally set into two groups, upper and lower, with the plate to be processed 100D placed between the two groups, moving forward by friction or pressing force.
[0037] These rollers have a large contact area with the board 100D to be processed, thus providing strong transmission and transport capabilities. However, the large contact area also results in high friction, making it prone to foreign matter adhesion to the rollers. This can lead to foreign matter adhering to the surface of the board 100D, potentially causing open circuits or short circuits on the board surface. In addition, horizontal processing equipment typically involves chemical processing or water washing. The chemical or water needs to remain on the board surface for a certain period of time to improve the processing effect. In the existing technology, the gap between the two rollers of the pressure roller assembly 10X is small, making it difficult for the chemical or water to remain on the board surface, resulting in insufficient processing.
[0038] Please see Figures 3 to 4 ; Figure 4 This is a schematic diagram of the three-dimensional structure of a prior art sheet roller assembly; Figure 5 This is a schematic diagram of the planar structure of a prior art sheet roller assembly.
[0039] Another structure is Figures 3 to 4The prior art sheet roller assembly 20X shown consists of a sheet roller 210X, a connecting rod 220X, and a prior art transmission mounting end ②230X. During the processing of the plate to be processed 100D, it is placed flat on the surface of the pressure roller 110X and moved forward by the sheet roller 210X. The prior art sheet roller assembly 20X is generally also set up as two sets, upper and lower, with the plate to be processed 100D placed between the two sets, moving forward by friction or pressing force.
[0040] The existing sheet roller assembly 20X is relatively thin, and the connecting rod 220X is relatively thin. For horizontal processing equipment that uses spray processing (e.g., spray etching, spray developing), the spray solution has a large spray water pressure, which makes it difficult for the existing sheet roller assembly 20X to block the spray solution. This results in the problem of excessively rapid exchange of spray solution on the board 100D to be processed, which also causes problems of insufficient reaction and processing.
[0041] Please see Figures 5 to 6 ; Figure 5 This is a three-dimensional structural diagram of the roller assembly according to this embodiment; Figure 6 This is a schematic diagram of the planar structure of the roller assembly in this embodiment.
[0042] To address the problems of existing rollers, the rollers of the circuit board horizontal processing equipment provided in this embodiment are provided with a plurality of alternating convex rollers 110 and concave rollers 120 in sequence; the diameter of the concave roller 120 is smaller on one side than the diameter of the convex roller 110; the diameter of the concave roller 120 is 2 / 3 to 7 / 8 of the diameter of the convex roller 110; the length of the concave roller 120 is greater than or equal to 3 times that of the convex roller 110; the roller 10 of this embodiment is also provided with a transmission mounting end 130.
[0043] Compared to the prior art pressure roller group 10, the roller 10 of this embodiment has a convex roller 110 and a concave roller 120 with a smaller height difference. Compared to the prior art sheet roller group 20X, the roller 10 has a larger width between adjacent convex rollers 110. On the one hand, the convex roller 110 forms a small contact area with the board surface, which can effectively prevent the problem of foreign matter adhering to the board surface. On the other hand, it can effectively prevent the chemical from being "driven away" by the roller too quickly and making it difficult to leave on the surface of the board 100D to be processed. In addition, the concave roller 120 has a larger diameter, which can effectively block the impact of the sprayed chemical. At the same time, it forms a certain space with the surface of the board 100D to be processed, which can prevent the problem of the sprayed chemical being exchanged too quickly on the surface of the board 100D to be processed due to the gap between the rollers being too loose, making it difficult to leave.
[0044] That is, the roller 10 of this embodiment can form a state in which the medicine can be retained but not excessively retained, so that the force of medicine exchange is moderate.
[0045] Please continue to refer to the diagram. Figures 7 to 10 ; Figure 7 This is a schematic diagram of the planar structure of the roller assembly of the inclined convex roller in this embodiment; Figure 8 This is a schematic diagram of the planar structure of the roller with guide strips according to this embodiment; Figure 9 This is a schematic diagram of the planar structure of the roller assembly of the staggered convex rollers in this embodiment; Figure 10 This is a schematic diagram of the planar structure of the roller assembly of the obliquely arranged, staggered convex rollers in this embodiment.
[0046] In one embodiment, the convex roller 110 and the concave roller 120 are arranged at an angle (e.g., Figure 7 (As shown).
[0047] That is, the convex roller 110 is set at an angle relative to the concave roller 120 as the convex roller 140. This arrangement can prevent the roller from rolling the plate during the processing of thinner rigid or flexible plates. Generally, the included angle is set to a small angle of 0.5° to 15°, preferably 5°.
[0048] In one embodiment, the surface of the cam roller 110 is provided with a plurality of raised stripe-shaped guide strips 150; the guide strips 150 are arranged at an angle to the cross-sectional circle of the cam roller (e.g., ...). Figure 8 (As shown).
[0049] The guide bar increases the pressure per unit area between the cam roller 110 and the surface of the board to be processed 100D, preventing slippage during transportation. The guide bar 150 is angled to further prevent slippage during transportation and to prevent the problem of rollers rolling the board when processing thin rigid or flexible boards. At the same time, the cam roller 110 can carry and transport thicker or heavier circuit boards. Generally, the included angle is set to a small angle of 0.5° to 15°, preferably 1° or 5°.
[0050] In one embodiment, the diameter of the concave roller 120 is 1.0 mm to 8.0 mm smaller on each side than the diameter of the convex roller 110.
[0051] As mentioned above, the diameter of the concave roller 120 in this embodiment is relatively close to the diameter of the convex roller 110, preferably less than 1mm, 2mm or 3mm on one side.
[0052] In one embodiment, the length of the concave roller 120 is greater than or equal to five times that of the convex roller 110.
[0053] As mentioned above, the length of the concave roller 120 is greater than that of the convex roller 110. Therefore, the concave roller 120 can effectively prevent the spraying force of the sprayed medicine from being too strong, which would make it difficult for the medicine to be retained. It can also form a certain space with the surface of the plate to be processed 100D, which is convenient for the retention and exchange of medicine.
[0054] In one embodiment, the roller is provided with drive mounting ends 130 at both ends, and the diameter of the drive mounting ends 130 is less than or equal to the diameter of the concave roller 120.
[0055] The small diameter of the transmission mounting end 130 ensures that the outer circumferential speed of the concave roller 120 is appropriate and the torque is not too large, thus avoiding problems such as friction damage to the surface of the plate to be processed 100D during transportation.
[0056] In one embodiment, several rollers are arranged in parallel to each other to form a roller group structure.
[0057] In this embodiment, the roller 10 is used in the form of a roller set in a horizontal processing equipment.
[0058] In one embodiment, the individual cam rollers 110 of the roller assembly are aligned with each other (e.g., ...). Figure 6 and Figure 7 (As shown).
[0059] In one embodiment, the individual convex rollers 110 of the roller assembly are arranged in a uniformly staggered manner (e.g., ...). Figure 9 and Figure 10 As shown), preferably, the misalignment distance is 3 mm to 1 / 2 of the length of the concave roller 120.
[0060] Depending on the requirements of the 100D to be processed, the rollers can be arranged in a straight line or staggered. The staggered arrangement can increase the roller arrangement density and increase the transport carrying capacity or pressing force of the 100D to be processed.
[0061] It is worth noting that when the convex roller 110 and the concave roller 120 are set at an angle, whether they are aligned or staggered, the adjacent convex rollers 110 are set at an angle in opposite directions; this prevents the plate from tilting in the same direction during transport and further prevents the roller from rolling during the processing of thinner rigid or flexible plates.
[0062] In one embodiment, the roller 10 of this embodiment is made of PVC, PP, PC, PET, PTFE, rubber or ABS.
[0063] The rollers are made of highly inert plastic to ensure a certain degree of flexibility, preventing scratches on the 100D board surface to be processed and preventing problems such as chemical corrosion.
[0064] It is worth noting that the two sets of rollers in this embodiment are arranged in parallel to form a double-layer roller set.
[0065] Generally, a double-layer arrangement is used, with the 100D board to be processed placed between the upper and lower layers for transportation and processing.
[0066] It is worth noting that the structure of the roller 10 in this embodiment can be a combination of separate parts, namely the convex roller 110, the concave roller 120, and the transmission mounting end 130. That is, each component is made into a separate part and then combined into a whole by means of snapping, gluing, or nailing, which is convenient for disassembly and replacement and reduces maintenance costs. Alternatively, a structure in which each part is a whole can be used, that is, the roller 10 of this embodiment is made into a single structure by means of CNC center, injection molding, compression molding, etc., which is convenient for direct installation and application and prevents the parts from loosening during application.
Claims
1. A roller for a horizontal circuit board processing device, characterized in that, The rollers are alternately provided with a number of convex rollers and concave rollers in sequence; The diameter of the concave roller is smaller on one side than the diameter of the convex roller; The diameter of the concave roller is 2 / 3 to 7 / 8 of the diameter of the convex roller; The length of the concave roller is greater than or equal to three times that of the convex roller.
2. The rollers of a horizontal circuit board processing equipment as described in claim 1, characterized in that, The convex roller and the concave roller are set at an angle.
3. The rollers of a horizontal circuit board processing equipment as described in claim 1, characterized in that, The surface of the convex roller is provided with a plurality of raised stripe-shaped guide strips; the guide strips are set at an angle to the circular cross-section of the convex roller.
4. The rollers of a circuit board horizontal processing equipment as described in claim 1, 2, or 3, characterized in that, The diameter of the concave roller is 1.0 mm to 8.0 mm smaller on each side than the diameter of the convex roller.
5. The rollers of a horizontal circuit board processing device as described in claim 1, 2, or 3, characterized in that, The length of the concave roller is greater than or equal to 5 times that of the convex roller.
6. The rollers of a horizontal circuit board processing equipment as described in claim 1, 2, or 3, characterized in that, The roller has transmission mounting ends at both ends, and the diameter of the transmission mounting ends is less than or equal to the diameter of the concave roller.
7. The rollers of a horizontal circuit board processing equipment as described in claim 1, 2, or 3, characterized in that, Several rollers are arranged in parallel to each other to form a roller group structure.
8. The rollers of a horizontal circuit board processing equipment as described in claim 7, characterized in that, The convex rollers of the roller assembly are aligned with each other.
9. The rollers of a horizontal circuit board processing equipment as described in claim 7, characterized in that, The convex rollers of the roller assembly are arranged in a staggered manner.
10. The rollers of a horizontal circuit board processing equipment as described in claim 7, characterized in that, The rollers are made of PVC, PP, PC, PET, PTFE, rubber, or ABS.