A coating roll for producing copper clad laminates

Abstract

This utility model discloses a coating roller for preparing copper-clad laminates, comprising a dispensing device, a feeding device, a partition device, and a coating tube. Two partition devices are connected to both ends of the coating tube, and the partition devices are connected to the feeding device. The feeding device passes through the dispensing device and is disposed inside the coating tube. The coating tube has several second feeding holes. The dispensing device includes a feeding guide column, a pressure adjusting spring, a side plate, a connecting screw, a fixing plate, a slurry plate, an adjusting spring, a sealing adjusting plate, and a first feeding hole. The feeding guide column has an adjusting plane, and two fixing plates are symmetrically connected to the adjusting plane. This utility model's coating roller for preparing copper-clad laminates has a simple structure and is convenient and practical. By rotating the feeding device to adjust the direction of the dispensing device, the position of the adhesive exiting the coating tube can be controlled, while avoiding the entire coating tube from exiting adhesive, thus reducing energy consumption.

Description

Technical Field

[0001] This utility model belongs to the field of coating rollers, and specifically relates to a coating roller for preparing copper-clad laminates. Background Technology

[0002] Copper-clad laminates (CCLs) are a crucial basic material for printed circuit boards (PCBs). Various types and functions of PCBs are created by selectively processing, etching, drilling, and copper plating on CCLs to produce different types of printed circuits (single-sided, double-sided, multi-layer). CCLs are made from substrates such as paper and fiberglass cloth, impregnated with resin to form adhesive sheets (adhesive tape and adhesive cloth). Several adhesive sheets are combined, and copper foil is applied to one or both sides, followed by hot-pressing and curing to create a board-like product. The adhesive sheet preparation process uses coating rollers. Traditional coating rollers often result in a large amount of adhesive dripping during coating, requiring a collection basin underneath. However, this also releases a significant amount of odor, necessitating a negative pressure air absorber to minimize the odor. This, in turn, necessitates the installation of excessive auxiliary equipment in the production line. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a coating roller for preparing copper-clad laminates. It has a simple structure and is convenient and practical. By adjusting the direction of the dispensing device through the rotating feeding device, the position of the adhesive outlet of the coating tube can be controlled, while avoiding the entire coating tube from discharging adhesive, thereby reducing energy consumption.

[0004] A coating roller for preparing copper-clad laminates includes a dispensing device, a feeding device, a partition device, and a coating tube. Two partition devices are connected to both ends of the coating tube. The partition devices are connected to the feeding device, which passes through the dispensing device. The dispensing device is disposed inside the coating tube, and the coating tube has several second feeding holes. The dispensing device includes a feeding guide post, a pressure adjusting spring, a side plate, a connecting screw, a fixing plate, a slurry plate, an adjusting spring, a sealing adjusting plate, and a first feeding hole. An adjusting plane is provided on the feeding guide post, and two fixing plates are symmetrically connected to the adjusting plane. On the surface, two slurry plates are connected to the two sides of the fixed plate. The sealing adjustment plate is slidably connected to the slurry plates. Several adjusting springs are connected at one end to the sealing adjustment plate and at the other end to the fixed plate. Several connecting screws pass through the fixed plate and the feeding directional column and cooperate with the feeding device. Two side plates are slidably connected to both ends of the feeding directional column. The two ends of the pressure adjusting spring are respectively connected to the side plates and the feeding directional column. Nuts for fixing the fixed plate are provided on the connecting screws. The first feeding hole is opened on the adjustment plane of the feeding directional column and is located between the two fixed plates and cooperates with the feeding device.

[0005] Preferably, the partition device includes a rotating ring, a bearing, a fixed baffle ring, and a rotating baffle ring. The rotating ring is connected to the feeding device via the bearing. The fixed baffle ring is connected to the feeding device. The rotating baffle ring is connected to the rotating ring. The fixed baffle ring is disposed between the bearing and the rotating baffle ring. The rotating ring has a positioning groove for positioning the coating tube.

[0006] Preferably, the feeding device includes a rotating shaft and side holes. The rotating shaft has an adsorption air channel and a glue supply channel running through it. The rotating shaft has two symmetrically opened connecting grooves. The connecting grooves are connected to the adsorption air channel through several side holes and are engaged with connecting screw tubes.

[0007] Preferably, a sealing gasket that mates with the connecting screw is provided on the connecting groove.

[0008] Preferably, one end of the side plate and the sealing adjustment plate is sintered with sealing silicone.

[0009] Preferably, the second feed hole is conical.

[0010] Preferably, a glue groove is formed on the circumferential surface of the coating tube.

[0011] Preferably, an adsorption hole is provided on the rotating shaft between the fixed baffle ring and the rotating baffle ring, and the adsorption hole is connected to the adsorption gas channel. Beneficial effects

[0012] (1) The present invention provides a coating roller for preparing copper-clad laminates. It has a simple structure and is convenient and practical. By rotating the feeding device to adjust the direction of the dispensing device, the position of the coating tube is controlled, and the coating tube is prevented from dispensing glue as a whole, thereby reducing energy consumption.

[0013] (2) The coating roller for preparing copper-clad laminate of this utility model controls the adhesive discharge area through the slurry plate on the two fixed plates, and controls the adsorption area through the two slurry plate areas on the fixed plates, so as to control the amount of adhesive discharged and adsorb excess adhesive to avoid the phenomenon of adhesive dripping. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the coating roller structure;

[0015] Figure 2 This is a schematic diagram of the partition device.

[0016] Figure 3 This is a schematic diagram of the material distribution device;

[0017] Figure 4 This is a schematic diagram of applying adhesive to a coating roller.

[0018] 1-Distribution device, 11-Feeding directional column, 12-Pressure adjusting spring, 13-Side plate, 14-Connecting screw tube, 15-Fixing plate, 16-Slurry plate, 17-Adjusting spring, 18-Sealing adjusting plate, 19-First feeding hole, 2-Feeding device, 21-Rotating shaft, 22-Adsorption air passage, 23-Glue supply passage, 24-Side hole, 25-Connecting groove, 3-Partitioning device, 31-Rotating ring, 32-Bearing, 33-Fixed baffle ring, 34-Rotating baffle ring, 35-Positioning groove, 4-Coating tube, 41-Second feeding hole. Detailed Implementation

[0019] The embodiments of this utility model are further described below with reference to the accompanying drawings. Example

[0020] like Figure 1As shown; a coating roller for preparing copper-clad laminate includes a dispensing device 1, a feeding device 2, a partition device 3, and a coating tube 4. Two partition devices 3 are connected to both ends of the coating tube 4. The partition devices 3 are connected to the feeding device 2. The feeding device 2 passes through the dispensing device 1. The dispensing device 1 is disposed inside the coating tube 4. The coating tube 4 has several second feeding holes 41. The dispensing device 1 includes a feeding guide post 11, a pressure adjusting spring 12, a side plate 13, a connecting screw 14, a fixing plate 15, a slurry plate 16, an adjusting spring 17, a sealing adjusting plate 18, and a first feeding hole 19. The feeding guide post 11... An adjustment plane is provided on the 1st, and two fixed plates 15 are symmetrically connected on the adjustment plane. Two slurry plates 16 are connected to the two sides of the fixed plates 15. The sealing adjustment plate 18 is slidably connected to the slurry plates 16. Several adjusting springs 17 are connected at one end to the sealing adjustment plate 18 and at the other end to the fixed plate 15. Several connecting screws 14 pass through the fixed plate 15 and the feeding directional column 11 and cooperate with the feeding device 2. Two side plates 13 are slidably connected to both ends of the feeding directional column 11. The two ends of the pressure adjusting spring 12 are respectively connected to the side plates 13 and the feeding directional column 11. The connecting screws 14 are provided with fixed... The nut of the fixed plate 15 is fixed. The first feeding hole 19 is opened on the adjustment plane of the feeding directional column 11 and is located between the two fixed plates 15 and cooperates with the feeding device 2. The partition device 3 includes a rotating ring 31, a bearing 32, a fixed baffle ring 33 and a rotating baffle ring 34. The rotating ring 31 is connected to the feeding device 2 through the bearing 32. The fixed baffle ring 33 is connected to the feeding device 2. The rotating baffle ring 34 is connected to the rotating ring 31. The fixed baffle ring 33 is disposed between the bearing 32 and the rotating baffle ring 34. The rotating ring 31 has a positioning groove 35 for positioning the coating tube 4. The feeding device 2 includes The rotating shaft 21 and side holes 24 are provided. The rotating shaft 21 has an adsorption air channel 22 and a glue supply channel 23 passing through it. The rotating shaft 21 has two symmetrical connecting grooves 25. The connecting grooves 25 are connected to the adsorption air channel 22 through several side holes 24 and are engaged with the connecting screw tube 14. A sealing gasket is provided on the connecting groove 25 to engage with the connecting screw tube 14. Sealing silicone is sintered at one end of the side plate 13 and the sealing adjustment plate 18. The second feeding hole 41 is conical. A glue groove is provided on the circumferential surface of the coating tube 4. An adsorption hole is provided on the rotating shaft 21 between the fixed baffle ring 33 and the rotating baffle ring 34. The adsorption hole is connected to the adsorption air channel 22.

[0021] The orientation of the dispensing device 1 is adjusted by pre-rotating the shaft 21 to control the area from which the adhesive is discharged from the coating tube 4. For ease of understanding, the area of ​​the slurry plate 16 on the two fixed plates 15 near the first feeding hole 19 is called the adhesive supply chamber, and the area between the two slurry plates 16 on the fixed plate 15 is called the negative pressure chamber. The adhesive is introduced into the first feeding hole 19 through the adhesive supply channel 23, and then enters the adhesive supply chamber through the first feeding hole 19, so that the adhesive is discharged from the second feeding hole 41 on the coating tube 4 covered by the adhesive supply chamber. The discharged adhesive is concentrated just before the substrate comes into contact with the coating tube 4 and forms an adhesive tumbling area, so that the adhesive is evenly adhered to the substrate. When there is too much adhesive concentrated in the adhesive tumbling area, it will be sucked out through the second feeding hole 41 on the coating tube 4 in the area covered by the negative pressure chamber. By the negative pressure suction of the adsorption air channel 22, the adhesive is discharged from the substrate. Excess adhesive is fed into the negative pressure chamber through the second feed hole 41, then through several connecting screws 14 into the side hole 24, and finally into the adsorption air channel 22, completing the recycling of the adhesive and reducing the occurrence of adhesive dripping. A spring keeps one end of the sealing adjustment plate 18 tightly against the inner wall of the coating tube 4, and the side plate 13 seals the adhesive limiting space between the areas of the slurry plate 16 on the two fixed plates 15. The sealing gasket prevents leakage in the area where the connecting screws 14 contact the connecting groove 25. By sintering sealing silicone on one end of the side plate 13 and the sealing adjustment plate 18, the sealing side plate 13 and the sealing adjustment plate 18 contact the inner wall of the coating tube 4 more tightly, reducing gaps. Adhesive leaking between the feed directional column 11 and the partition device 3 is sucked out through the adsorption hole.

[0022] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A coating roller for preparing copper-clad laminates, characterized in that: It includes a material distribution device (1), a material supply device (2), a partition device (3), and a coating tube (4). Two partition devices (3) are connected to both ends of the coating tube (4). The partition devices (3) are connected to the material supply device (2). The material supply device (2) passes through the material distribution device (1). The material distribution device (1) is set inside the coating tube (4). The coating tube (4) has several second material supply holes (41). The material distribution device (1) includes a material supply directional column (11), a pressure regulating spring (12), a side plate (13), a connecting screw (14), a fixing plate (15), a slurry plate (16), an adjusting spring (17), a sealing adjusting plate (18), and a first material supply hole (19). The material supply directional column (11) has an adjusting plane. Two fixing plates (15) are symmetrically connected on the adjusting plane. The slurry plate (16) is connected to both sides of the fixed plate (15). The sealing adjustment plate (18) is slidably connected to the slurry plate (16). One end of several adjustment springs (17) is connected to the sealing adjustment plate (18) and the other end is connected to the fixed plate (15). Several connecting screws (14) pass through the fixed plate (15) and the feeding directional column (11) and cooperate with the feeding device (2). Two side plates (13) are slidably connected to both ends of the feeding directional column (11). The two ends of the pressure adjusting spring (12) are respectively connected to the side plate (13) and the feeding directional column (11). Nuts for fixing the fixed plate (15) are provided on the connecting screws (14). The first feeding hole (19) is opened on the adjustment plane of the feeding directional column (11) and is located between the two fixed plates (15) and cooperates with the feeding device (2).

2. The coating roller for preparing copper-clad laminates as described in claim 1, characterized in that: The partition device (3) includes a rotating ring (31), a bearing (32), a fixed baffle ring (33) and a rotating baffle ring (34). The rotating ring (31) is connected to the feeding device (2) through the bearing (32). The fixed baffle ring (33) is connected to the feeding device (2). The rotating baffle ring (34) is connected to the rotating ring (31). The fixed baffle ring (33) is located between the bearing (32) and the rotating baffle ring (34). The rotating ring (31) has a positioning groove (35) for positioning the coating tube (4).

3. The coating roller for preparing copper-clad laminates as described in claim 2, characterized in that: The feeding device (2) includes a rotating shaft (21) and a side hole (24). The rotating shaft (21) has an adsorption air channel (22) and a glue supply channel (23) passing through it. The rotating shaft (21) has two symmetrical connecting grooves (25). The connecting grooves (25) are connected to the adsorption air channel (22) through several side holes (24) and cooperate with the connecting screw tube (14).

4. The coating roller for preparing copper-clad laminates as described in claim 3, characterized in that: A sealing gasket that mates with the connecting screw tube (14) is provided on the connecting groove (25).

5. The coating roller for preparing copper-clad laminates as described in claim 4, characterized in that: The side plate (13) and the sealing adjustment plate (18) are sintered with sealing silicone at one end.

6. The coating roller for preparing copper-clad laminates as described in claim 5, characterized in that: The second feed hole (41) is conical.

7. A coating roller for preparing copper-clad laminates as described in claim 6, characterized in that: The coating tube (4) has a glue groove on its circumference.

8. The coating roller for preparing copper-clad laminates as described in claim 7, characterized in that: An adsorption hole is provided on the rotating shaft (21) between the fixed baffle ring (33) and the rotating baffle ring (34), and the adsorption hole is connected to the adsorption air channel (22).

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