Circuit board shape correcting device

Abstract

A circuit board shape correcting device comprises a base, a feeding assembly and a shape correcting assembly, and the feeding assembly and the shape correcting assembly are both arranged on the base and arranged left and right; the shape correcting assembly comprises a packaging box body, a plurality of elastic telescopic rods, a plurality of heating rollers and two conveying belts. According to the utility model, a plurality of groups of heating roller group structures with the elastic telescopic rods are designed to correct the shape of the circuit board, and the elastic coefficient of the elastic telescopic rods is gradually increased, so that the stress of the circuit board in the shape correction process is gradually increased, and therefore, the shape of the circuit board can be effectively corrected; the problem that the circuit board is damaged due to extreme pressure can be avoided; the temperature of the heating roller is arranged from small to large and then from small, so that the heating temperature rise or temperature drop of the circuit board tends to be gentle, and a higher-level circuit board shape correction effect can be achieved; the utility model has the advantages of strong practicability and strong popularization significance.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board technical field especially relates to a circuit board shape correction device. BACKGROUND

[0002] Circuit board is also called line board, it is important electronic component, is the support body of electronic components, is the carrier of electrical interconnection of electronic components. Almost every kind of electronic equipment, small to electronic watch, calculator, large to computer, communication electronic equipment, military weapon system, as long as integrated circuit and other electronic components, in order to make the electrical interconnection between various components, circuit board is used. Circuit board is composed of insulating base plate, connecting wire and solder pad of assembly welding electronic component, has the dual role of conductive circuit and insulating base plate.

[0003] In the circuit board production process, different wiring or the layer structure of multilayer printed board leads to different stress or stress relief, which is easy to cause the board to bow or bend, therefore, the board shape needs to be corrected during processing. The existing circuit board shape correction is mostly hot pressing equipment with stamping structure, which puts the circuit board in a high-temperature and high-pressure environment for flattening operation, so that it becomes flat. But this kind of whole surface flattening method is difficult to control the flattening temperature and pressure of the circuit board, which is easy to crack or even crush the circuit board. Moreover, the feeding and discharging process of stamping correction is also relatively complex, which makes the correction processing efficiency lower. SUMMARY

[0004] Therefore, it is necessary to provide a circuit board shape correction device aiming at the deficiencies in the prior art.

[0005] A circuit board shape correction device, comprising a base, a feeding assembly and a correction assembly, the feeding assembly and the correction assembly are arranged on the base and arranged in left and right. The correction assembly comprises an encapsulation box, a plurality of elastic expansion rods, a plurality of heating rollers and two transmission belts. The encapsulation box is designed as a hollow structure, an installation cavity is arranged in the encapsulation box, and an inlet and outlet are respectively arranged on the two sides of the encapsulation box and communicated with the installation cavity and the outside. A plurality of elastic expansion rods are arranged at the bottom and the top of the installation cavity, and the elastic expansion rods at the bottom and the top are arranged in uniform intervals along the horizontal direction. Each elastic expansion rod at the top is arranged opposite to each elastic expansion rod at the bottom. The elastic coefficient of the plurality of elastic expansion rods gradually increases from left to right and then remains constant along the horizontal direction. The elastic coefficient of the elastic expansion rods opposite to each other remains constant. A plurality of heating rollers are arranged on the plurality of elastic expansion rods, and the plurality of heating rollers are arranged opposite to each other.

[0006] Further, the heating temperature of the several heating rollers gradually decreases from the middle to both sides along the horizontal direction, and the heating temperature of the heating rollers opposite to each other is kept consistent.

[0007] Further, the feeding assembly comprises a feeding table, several feeding rollers, two conveying belts and a cleaning device. The feeding table is provided with a feeding groove, the several feeding rollers are respectively arranged in the feeding groove, the two conveying belts are respectively sleeved on the several feeding rollers and are arranged in a left-right interval, the two conveying belts can be driven to rotate by the feeding rollers, and the cleaning device is arranged on the feeding table and located between the two conveying belts.

[0008] Further, the cleaning device comprises a mounting frame, a sliding shaft sleeve, a first adjusting screw, an upper cleaning roller and a lower cleaning roller. The mounting frame is arranged on the feeding table, the mounting frame is further provided with a lifting sliding groove, the sliding shaft sleeve is clamped and arranged in the lifting sliding groove and can slide up and down, the first adjusting screw penetrates through the mounting frame from top to bottom and the lower end of the first adjusting screw extends into the lifting sliding groove and is connected with the sliding shaft sleeve, the two ends of the upper cleaning roller are respectively clamped and arranged in the sliding shaft sleeve and can rotate, and the lower cleaning roller is clamped and arranged in the feeding groove and can rotate, and the lower cleaning roller is further arranged opposite to the upper cleaning roller.

[0009] Further, the feeding assembly further comprises a deviation rectifying device, the deviation rectifying device comprises a lifting air rod and a movable baffle, the lifting air rod is arranged on the feeding table and located at the right side of the cleaning device, the two ends of the movable baffle are respectively arranged on the upper end of the lifting air rod and can be driven to lift by the lifting air rod, and the lower end of the movable baffle extends into the feeding groove.

[0010] Further, the packaging box further comprises a mounting plate and a second adjusting screw, the mounting plate is located at the upper portion of the mounting cavity, and the second adjusting screw penetrates through the packaging box from top to bottom and the lower end of the second adjusting screw extends into the mounting cavity and is connected with the mounting plate. The several elastic telescopic rods of the top are all arranged on the bottom of the mounting plate.

[0011] In conclusion, the circuit board shape correcting device has the advantages that: the circuit board is corrected by the multiple groups of heating roller groups with elastic telescopic rods, and the elastic coefficient of the elastic telescopic rods gradually increases, so that the stress of the circuit board during the shape correction process also gradually increases, which can effectively correct the shape of the circuit board and avoid the problem that the circuit board is damaged due to extreme pressure; the temperature arrangement of the heating rollers is set from small to large and then to small, so that the heating and temperature rising or falling of the circuit board are more gentle, thereby achieving higher circuit board shape correction effect; the feeding assembly is provided with the cleaning device, so that the circuit board can avoid affecting the machining effect due to dust and the like on the board surface when receiving the shape correction; and the circuit board shape correcting device has strong practicability and strong popularization significance. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a circuit board shape correction device according to the present invention;

[0013] Figure 2 for Figure 1 Exploded view of the feed assembly;

[0014] Figure 3 for Figure 2 A schematic diagram of the exploded structure of the cleaning device;

[0015] Figure 4 for Figure 2 Exploded view of the mid-track correction device;

[0016] Figure 5 for Figure 1 A cross-sectional structural diagram of the orthopedic component. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0018] like Figures 1 to 5 As shown, this utility model provides a circuit board shape correction device 100, which includes a base 10, a feeding assembly 20, and a correction assembly 30. The feeding assembly 20 and the correction assembly 30 are both mounted on the base 10 and arranged in a left-right configuration. It is understood that this utility model also includes several electric drive structures, pneumatic drive structures, etc., which are all conventional technologies in the field and will not be described in detail here.

[0019] The loading assembly 20 includes a loading platform 21, several feeding rollers 22, two conveyor belts 23, and a cleaning device 24. The loading platform 21 has a loading trough 211, and the feeding rollers 22 are respectively installed inside the loading trough 211. The two conveyor belts 23 are respectively sleeved on the feeding rollers 22 and are spaced apart from each other. Both conveyor belts 23 can be driven to rotate by the feeding rollers 22. The cleaning device 24 is installed on the loading platform 21 and located between the two conveyor belts 23. The loading assembly 20 with the conveyor belts 23 can automatically load circuit boards, thereby achieving efficient circuit board shape correction processing. Furthermore, the cleaning device on the loading assembly 20 can clean the surface of the circuit board, effectively preventing dust and dirt from affecting the circuit board shape correction effect.

[0020] The cleaning device 24 comprises a mounting frame 241, a sliding sleeve 242, a first adjusting screw 243, an upper cleaning roller 244 and a lower cleaning roller 245. The mounting frame 241 is arranged on the feeding table 21, and a lifting chute 241a is further arranged on the mounting frame 241. The sliding sleeve 242 is arranged in the lifting chute 241a and can slide up and down. The first adjusting screw 243 passes through the mounting frame 241 from top to bottom, and the lower end of the first adjusting screw 243 extends into the lifting chute 241a and is connected with the sliding sleeve 242. The upper ends of the upper cleaning roller 244 are arranged in the sliding sleeve 242 and can rotate freely. The lower cleaning roller 245 is arranged in the feeding groove 211 and can rotate freely. The lower cleaning roller 245 is arranged opposite to the upper cleaning roller 244. The adjustable structure of the cleaning device 24 can freely adjust the distance between the upper and lower cleaning rollers, so as to clean circuit boards of different thickness specifications.

[0021] The feeding assembly 20 further comprises a deviation correcting device 25, which comprises a lifting air rod 251 and a movable baffle 252. The lifting air rod 251 is arranged on the feeding table 21 and located at the right side of the cleaning device 24. The movable baffle 252 is arranged at the upper end of the lifting air rod 251 and can be driven by the lifting air rod 251 to move up and down. The lower end of the movable baffle 252 extends into the feeding groove 211. The deviation correcting device 25 can block the circuit board by lowering the movable baffle 252, so that the circuit board which is placed more inclined can be automatically adjusted to better perform the circuit board shape correcting process.

[0022] The shape correcting assembly 30 comprises an encapsulating box 31, a plurality of elastic extension rods 32, a plurality of heating rollers 33 and two transmission belts 34. The encapsulating box 31 is designed in a hollow structure, and an installation cavity 311 is arranged in the encapsulating box 31. A feeding and discharging port 312 is arranged on each side of the encapsulating box 31 and communicates with the installation cavity 311 and the outside. The elastic extension rods 32 are arranged at the bottom and the top of the installation cavity 311. The elastic extension rods 32 arranged at the bottom and the elastic extension rods 32 arranged at the top are uniformly and horizontally arranged. Each elastic extension rod 32 arranged at the top is arranged opposite to each elastic extension rod 32 arranged at the bottom. The elastic coefficients of the elastic extension rods 32 gradually increase from left to right and then remain constant. The elastic coefficients of the elastic extension rods 32 arranged opposite to each other remain constant.

[0023] When the board shape is corrected, the circuit board enters the packaging box 31 from the left inlet and outlet 312, and then is uniformly transmitted to the right under the drive of the heating roller 33 and the transmission belt 34. During the transmission, the curved circuit board body is heated and pressed by the heating roller 33. With the gradual increase of the temperature of the circuit board body, the pressing force on the circuit board gradually increases and finally reaches a suitable constant value. Since the temperature and the pressing parameter of the circuit board always correspond reasonably, the problem of damage of the circuit board caused by extreme pressure can be effectively avoided.

[0024] The heating rollers 33 are arranged on the elastic telescopic rods 32, and the heating rollers 33 are arranged in pairs in an up-down mode. The transmission belts 34 are arranged on the heating rollers 33 in an upper and lower mode and can be driven to rotate by the heating rollers 33. The heating temperature of the heating rollers 33 gradually decreases from the middle to the two sides in the horizontal direction, and the heating temperatures of the heating rollers 33 arranged in pairs in an up-down mode are consistent. The smooth change of the temperature of the heating roller 33 can make the circuit board that uniformly moves more gently heat or cool, thereby avoiding the adverse effects of instantaneous high temperature change on the circuit board.

[0025] The packaging box 31 further comprises a mounting plate 313 and a second adjusting screw 314. The mounting plate 313 is arranged at the upper part of the mounting cavity 311, and the second adjusting screw 314 extends through the packaging box 31 from top to bottom and is connected with the mounting plate 313 at the lower end extending into the mounting cavity 311. The elastic telescopic rods 32 are arranged at the bottom of the mounting plate 313. The orthopedic assembly 30 with the adjusting structure can freely adjust the distance between the upper and lower heating rollers 33, thereby coping with the board shape correction processing of circuit boards with different thickness specifications.

[0026] In summary, the circuit board shape correction device 100 has the following advantages. The circuit board is corrected by the heating roller 33 with the elastic telescopic rod 32, and the elastic coefficient of the elastic telescopic rod 32 gradually increases, so that the stress of the circuit board during the correction of the board shape also gradually increases. Thus, the board shape can be effectively corrected, and the problem of damage of the circuit board caused by extreme pressure can be avoided. The temperature arrangement of the heating roller 33 is set from small to large and then to small, so that the heating and cooling of the circuit board are more gentle, thereby achieving a higher level of circuit board orthopedic effect. The cleaning device 24 is arranged on the feeding assembly 20, so that the circuit board can avoid affecting the processing effect due to dust and the like on the board surface when receiving the orthopedic effect. The utility model has strong practicability and strong popularization significance.

[0027] The above-described embodiments only express one implementation of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of variations and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A circuit board shape correction device, characterized in that: The utility model provides a kind of packaging device, including base, feeding assembly and orthopedic component, and feeding assembly and orthopedic component are arranged left and right on base;The orthopedic component includes packaging box, several elastic telescopic rods, several heating rollers and two transmission belts;The packaging box is designed as hollow structure, and installation cavity is arranged in it, and its two sides are also respectively provided with inlet and outlet communicated with installation cavity and outside, several elastic telescopic rods are respectively installed in the bottom and top of installation cavity, and the several elastic telescopic rods in bottom and the several elastic telescopic rods in top are evenly spaced along the horizontal direction, wherein each top elastic telescopic rod is also arranged opposite to each top elastic telescopic rod up and down;The elastic coefficient of several elastic telescopic rods gradually increases from left to right along the horizontal direction and then remains constant, and the elastic coefficient of elastic telescopic rod opposite up and down remains consistent;Several heating rollers are respectively installed on several elastic telescopic rods, and the several heating rollers are arranged opposite up and down;Two transmission belts are respectively sleeved on the several heating rollers above and below and can be driven to rotate by heating roller.

2. The board shape correcting apparatus according to claim 1, wherein: The heating temperature of several heating rollers gradually decreases from the middle to both sides along the horizontal direction, and the heating temperature of heating rollers opposite up and down remains consistent.

3. The board shape correcting apparatus according to Claim 1, wherein: The feeding assembly includes feeding table, several feeding rollers, two conveying belts and a cleaning device;The feeding table is provided with a feeding groove, and several feeding rollers are respectively installed in the feeding groove, two conveying belts are respectively sleeved on the several feeding rollers and are arranged left and right with a spacing, and the two conveying belts can be driven to rotate by the feeding rollers, and the cleaning device is installed on the feeding table and located between the two conveying belts.

4. The board shape correcting apparatus according to claim 3, wherein: The cleaning device includes a mounting bracket, a sliding shaft sleeve, a first adjusting screw, an upper cleaning roller and a lower cleaning roller;The mounting bracket is installed on the feeding table, and a lifting chute is further arranged on the mounting bracket, the sliding shaft sleeve is fitted and installed in the lifting chute and can slide up and down, the first adjusting screw passes through the mounting bracket from top to bottom, and the lower end of the first adjusting screw extends into the lifting chute and is connected with the sliding shaft sleeve, the two ends of the upper cleaning roller are respectively fitted and installed in the sliding shaft sleeve and can rotate, and the lower cleaning roller is fitted and installed in the feeding groove and can rotate, and the lower cleaning roller is arranged opposite to the upper cleaning roller up and down.

5. The board shape correcting apparatus according to claim 3, wherein: The feeding assembly further includes a deviation correcting device, and the deviation correcting device includes a lifting air rod and a movable baffle, the lifting air rod is installed on the feeding table and located on the right side of the cleaning device, and the two ends of the movable baffle are respectively installed on the upper end of the lifting air rod and can be driven to move up and down by the lifting air rod, and the lower end of the movable baffle extends into the feeding groove.

6. The board shape correcting apparatus according to claim 1, wherein: The packaging box further includes a mounting plate and a second adjusting screw, the mounting plate is located at the upper part of the installation cavity, and the second adjusting screw passes through the packaging box from top to bottom, and the lower end of the second adjusting screw extends into the installation cavity and is connected with the mounting plate;The several top elastic telescopic rods are installed on the bottom of the mounting plate.

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