Circuit board flattening device

Abstract

The present invention relates to a circuit board flattening device, comprising a base, a cylinder fixed on the base, an adjusting mechanism fixed on the base, and a flattening mechanism fixed on the cylinder; the flattening mechanism comprises a rotating assembly fixed on the cylinder, a pressing roller assembly fixed on the rotating assembly, and a closing assembly slidably arranged on the rotating assembly. The problem that the existing flattening device has a poor flattening effect on the edges and corners of the circuit board is solved.

Description

Technical Field

[0001] The invention relates to the technical field of printed circuit board processing, and in particular to a circuit board flattening device. Background Art

[0002] With the continuous development of the circuit board industry, the electronic components mounted on high-end handheld electronic consumer products are getting smaller and smaller, and the requirements for the flatness of the circuit board surface during the mounting process are getting higher and higher.

[0003] During the production process of printed circuit boards, it is necessary to press together metal aluminum plates and multi-layer aluminum substrates. However, due to the large difference in the properties of metal aluminum and aluminum substrates, the expansion and contraction are inconsistent during pressing, and the internal stacking structure is asymmetrical, which easily causes the seesaw problem. In order to solve the seesaw problem, the circuit board needs to be flattened. The common method of flattening a circuit board is to clamp the corners of the circuit board, and then use a roller to flatten it. The roller rolls on the circuit board, and when it rolls to the corner, it contacts the clamping device. However, the roller is in the shape of a drum. After contacting the clamping device, part of the corner of the circuit board cannot contact the roller, affecting the flattening effect of the roller on the corner of the circuit board. Summary of the invention

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a circuit board flattening device, including a base, a cylinder fixed on the base, an adjusting mechanism fixed on the base, and a flattening mechanism fixed on the cylinder; the flattening mechanism includes a rotating assembly fixed on the cylinder, a pressing roller assembly fixed on the rotating assembly, and a closing assembly slidably arranged on the rotating assembly. The base is placed on the ground; the cylinder can push the flattening mechanism to move in the vertical direction; the adjusting mechanism is used to limit the flattening mechanism, thereby realizing the function of adjusting the flattening thickness; the rotating assembly can rotate when moving downward, driving the pressing roller assembly to rotate, so that the pressing roller assembly can make a circular motion on the circuit board to flatten the corners of the circuit board; the pressing roller assembly can flatten the corners of the circuit board and can move in the vertical direction; the closing assembly can close the fourth slide groove after the rotating assembly rotates a certain angle, so that the bottom of the second rotating seat forms a plane to flatten the entire circuit board.

[0006] Specifically, the adjustment mechanism includes a placement seat fixed on the base, a first slide groove symmetrically arranged on the placement seat, a first mounting groove symmetrically arranged on the placement seat, a second mounting groove fixed on the placement seat, a limit plate slidably arranged on the first slide groove, and a lifting device arranged on the first mounting groove and the second mounting groove. The placement seat is fixed on the base and is used to place the circuit board; the limit plate is slidably arranged on the first slide groove, and a square through hole is arranged in the middle of the limit plate. The circuit board passes through the through hole and is placed on the placement seat. The lifting device is used to adjust the height of the limit plate, thereby limiting the flattening mechanism, that is, adjusting the flattened thickness of the circuit board.

[0007] Specifically, the lifting device includes a first adjusting rod fixed on the limiting plate and passing through the first mounting groove, a first gear rotatably arranged on the first adjusting rod, a second adjusting rod rotatably arranged on the placement seat, a second gear fixedly arranged on the second adjusting rod, a third gear fixedly arranged on the second adjusting rod, a chain sleeved on the third gear, and a handle fixedly arranged on the second adjusting rod. The first adjusting rod is a threaded rod; the first gear is a bevel gear, and a limiting block is arranged on the first gear so that the first gear will not be separated from the first mounting groove when rotating; the second gear is a bevel gear, fixedly arranged on the second adjusting rod, and the second gear cooperates with the first gear; the third gear cooperates with the chain to make the second adjusting rods on both sides rotate synchronously, thereby making the two ends of the limiting plate move synchronously; the handle is rotated to drive the second adjusting rod on one side to rotate, the third gear rotates, and the second adjusting rod on the other side rotates through chain transmission, the second adjusting rod drives the second gear to rotate, the second gear drives the first gear to rotate, and the first gear drives the first adjusting rod to move in the vertical direction, that is, drives the limiting plate to move on the first slide slot, thereby limiting the flattening mechanism, and finally realizing the function of adjusting the flattening thickness of the circuit board.

[0008] Specifically, the rotating assembly includes a first rotating seat fixed on the cylinder, a plurality of first rotating blocks fixed on the first rotating seat, a plurality of first telescopic rods fixed on the first rotating seat, a second rotating seat rotatably mounted on the first telescopic rod, a second slide groove fixed on the second rotating seat, and a plurality of second rotating blocks fixed on the second rotating seat; the first rotating seat and the second rotating seat are connected by a first spring. The first rotating seat is fixed on the cylinder and cannot rotate, and the first rotating block is provided with an inclined surface; the first telescopic rod is used to connect the first rotating seat and the second rotating seat; in the initial state, the second rotating seat does not contact the first rotating seat, and the second rotating seat is larger than the through hole on the limit plate; the second rotating block is provided with an inclined surface, and the first rotating block and the second rotating block are staggered; one end of the first telescopic rod can slide on the second slide groove; the first spring is a truncated cone volute spring used for resetting the second rotating seat; the cylinder drives the first rotating seat to move downward, and the second rotating seat is fixed on the first telescopic rod, so the second rotating seat will also descend synchronously. When the inclined surface of the first rotating block contacts the inclined surface of the second rotating block, the first rotating block will push the second rotating block to rotate during the downward movement, and then push the second rotating seat to rotate, the first spring is twisted, and the first telescopic rod slides on the second slide groove.

[0009] Specifically, the pressure roller assembly includes a plurality of third slide grooves fixedly arranged on the second rotating seat, a second mounting groove fixedly arranged on the third slide groove, a pressure roller seat slidably arranged on the third slide groove, and a roller rotatably sleeved on the pressure roller seat; the pressure roller seat and the second mounting groove are connected by a second telescopic rod; the pressure roller seat and the second mounting groove are connected by a second spring. The pressure roller seat can slide along the third slide groove; the roller can rotate on the pressure roller seat, and when the second rotating seat rotates, it will drive the pressure roller seat to rotate, thereby causing the roller to roll and flatten the circuit board; the second spring is used to reset the pressure roller seat; the second telescopic rod limits the movement of the pressure roller seat to ensure that the pressure roller seat is always perpendicular to the second rotating seat.

[0010] Specifically, the closing assembly includes a fourth slide fixed on the second rotating seat, a closing plate slidably arranged on the fourth slide, a groove fixed on the second rotating seat, and a limit groove fixed on the second rotating seat; the closing plate and the fourth slide are connected by a third spring; the closing plate and the first rotating seat are connected by a traction rope. The fourth slide is provided with an inclined surface; the limit groove is provided with two inclined surfaces; the closing plate is provided with three inclined surfaces, the inclined surface on the left side can cooperate with the inclined surface on the fourth slide, and the two inclined surfaces on the right side cooperate with the two inclined surfaces on the limit groove; the third spring is a compression spring, which is used to push the closing plate to move and is compressed in the initial state; the traction rope is used to reset the closing plate and is in a tight state in the initial state.

[0011] The cylinder pushes the first rotating seat to move downward, and the second rotating seat is fixed on the first telescopic rod, so the second rotating seat will also descend synchronously. When the roller contacts the circuit board, the first telescopic rod will be squeezed and contracted, the distance between the first rotating seat and the second rotating seat will be shortened, the first spring will be compressed, the traction rope will be relaxed, and the third spring will push the closing plate to slide on the fourth slide groove, but the pressure roller seat has not been retracted at this time, so one end of the closing plate will resist the pressure roller seat, and when the inclined surface of the first rotating block contacts the inclined surface of the second rotating block, the first rotating block will push the second rotating block to rotate during the downward movement, and then push the second rotating seat to rotate, the first spring will be twisted, the first telescopic rod will slide on the second slide groove, and the second rotating seat will drive the pressure roller seat when rotating. The roller rotates together with the roller seat, and the roller itself rotates on the roller seat. During the rotation process, the roller will flatten the corners of the circuit board. After rotating a certain angle, the third spring is compressed to a certain extent, the roller seat and the closing plate are misaligned, and the third spring pushes the closing plate to move. The inclined surface on the right side of the closing plate facilitates the contact between the closing plate and the roller. The third spring pushes the right side of the closing plate to completely enter the limiting groove. At this time, the inclined surface on the left side of the closing plate also fully fits the inclined surface on the fourth slide. At the same time, the second spring will also apply a downward force to the roller seat. This force is transmitted to the closing plate through the roller, so that the closing plate is more closely attached to the limiting groove, and then the bottom surface of the second rotating seat forms a plane, flattening the circuit board as a whole. When resetting, the cylinder drives the first rotating seat to move upward, the first spring will reset and drive the second rotating seat to rotate in the opposite direction to reset, and at the same time, the traction rope is stretched, driving the closing plate back to the fourth slide, the third spring is compressed, and the second spring resets and pushes the roller seat to move downward to reset.

[0012] The beneficial effects of the present invention are:

[0013] (1) The circuit board is not clamped, which avoids the problem that a part of the corners of the circuit board cannot contact the roller, resulting in the corners of the circuit board cannot be flattened.

[0014] (2) Compared with a single roller, the present invention can flatten the edges and corners of the circuit board synchronously, and the flattening is more uniform.

[0015] (3) After flattening the corners, the roller can be automatically retracted, so that the bottom of the second rotating seat is a completed plane, and the circuit board can be flattened as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0017] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0018] In the attached picture:

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a front view of the present invention;

[0021] Figure 3 for Figure 2 Isometric section view of middle AA;

[0022] Figure 4 for Figure 3 A partial enlarged view of point C in the middle;

[0023] Figure 5 for Figure 3 A partial enlarged view of point D in the middle;

[0024] Figure 6 for Figure 2 Linear section of the middle BB;

[0025] Figure 7 for Figure 6 Partial line section of EE;

[0026] Figure 8 for Figure 6 A partial enlarged view of point F in the middle;

[0027] Fig. 9 for Figure 6 Line section of middle GG;

[0028] Fig.10 for Fig. 9 A partial enlarged view of point H in the middle. DETAILED DESCRIPTION

[0029] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0030] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0031] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0032] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0033] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0034] Reference Figure 1-10 As shown, a circuit board flattening device described in the present invention includes a base 1, a cylinder 2 fixed on the base, an adjusting mechanism 3 fixed on the base, and a flattening mechanism 4 fixed on the cylinder; the flattening mechanism includes a rotating component 41 fixed on the cylinder, a pressure roller component 42 fixed on the rotating component, and a closing component 43 slidably arranged on the rotating component.

[0035] Specifically, the adjustment mechanism includes a placement seat 31 fixed on the base, a first slide groove 32 symmetrically arranged on the placement seat, a first mounting groove 33 symmetrically arranged on the placement seat, a second mounting groove 34 fixed on the placement seat, a limit plate 35 slidably arranged on the first slide groove, and a lifting device 36 arranged on the first mounting groove and the second mounting groove.

[0036] Specifically, the lifting device includes a first adjusting rod 361 fixed on the limiting plate and passing through the first mounting groove, a first gear 362 rotatably arranged on the first adjusting rod, a second adjusting rod 363 rotatably arranged on the placement seat, a second gear 364 fixed on the second adjusting rod, a third gear 365 fixed on the second adjusting rod, a chain 366 sleeved on the third gear, and a handle 367 fixed on the second adjusting rod.

[0037] Specifically, the rotating assembly includes a first rotating seat 411 fixed on the cylinder, a plurality of first rotating blocks 412 fixed on the first rotating seat, a plurality of first telescopic rods 413 fixed on the first rotating seat, a second rotating seat 414 rotatably mounted on the first telescopic rod, a second slide groove 415 fixed on the second rotating seat, and a plurality of second rotating blocks 416 fixed on the second rotating seat; the first rotating seat and the second rotating seat are connected by a first spring 417.

[0038] Specifically, the pressure roller assembly includes a plurality of third slide grooves 421 fixedly arranged on the second rotating seat, a second mounting groove 422 fixedly arranged on the third slide groove, a pressure roller seat 423 slidably arranged on the third slide groove, and a roller 424 rotatably sleeved on the pressure roller seat; the pressure roller seat and the second mounting groove are connected by a second telescopic rod 425; the pressure roller seat and the second mounting groove are connected by a second spring 426.

[0039] Specifically, the closing assembly includes a fourth slide groove 431 fixed on the second rotating seat, a closing plate 432 slidably arranged on the fourth slide groove, a groove 433 fixed on the second rotating seat, and a limiting groove 434 fixed on the second rotating seat; the closing plate and the fourth slide groove are connected by a third spring 435; the closing plate and the first rotating seat are connected by a traction rope 436.

[0040] When in use, the circuit board passes through the through hole of the limit plate and is placed on the placement seat, the handle is rotated to drive the second adjusting rod on one side to rotate, the third gear rotates, and through the chain transmission, the second adjusting rod drives the second gear to rotate, the second gear drives the first gear to rotate, and the first gear drives the first adjusting rod to move in the vertical direction, that is, drives the limit plate to move on the first slide slot. After adjusting the height, start the cylinder to push the first rotating seat downward, and the second rotating seat is fixed on the first telescopic rod, so the second rotating seat will also drop synchronously. When the roller contacts the circuit board, the first telescopic rod will be squeezed and contracted, the distance between the first rotating seat and the second rotating seat is shortened, the first spring is compressed, the traction rope is relaxed, and the third spring pushes the closing plate to slide on the fourth slide slot, but the pressure roller seat has not been retracted at this time, so one end of the closing plate will resist the pressure roller seat, and when the inclined surface of the first rotating block contacts the inclined surface of the second rotating block, the first rotating block will push the second rotating block to rotate during the downward movement When the roller is rotated, the third spring is compressed to a certain extent, the pressure roller seat and the closing plate are misaligned, and the third spring pushes the closing plate to move, and the inclined surface on the right side of the closing plate facilitates the contact between the closing plate and the roller, and the third spring pushes the right side of the closing plate to completely enter the limiting groove. At this time, the inclined surface on the left side of the closing plate is also completely fitted with the inclined surface on the fourth sliding groove. At the same time, the second spring also applies a downward force to the pressing roller seat, and this force is transmitted to the closing plate via the roller, so that the closing plate is more closely attached to the limiting groove, thereby forming a plane on the bottom surface of the second rotating seat, flattening the circuit board as a whole, and the second rotating seat cannot continue to move downward after contacting the limiting plate, that is, flattening the circuit board to the same height as the limiting plate. During reset, the cylinder drives the first rotating seat to move upward, the first spring will reset and drive the second rotating seat to rotate in the opposite direction and reset, and at the same time the traction rope is stretched, driving the closing plate back to the fourth slide slot, the third spring is compressed, and the second spring resets and pushes the pressure roller seat to move downward and reset.

[0041] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A circuit board flattening device, characterized in that: It comprises a base (1), a cylinder (2) fixedly mounted on the base, an adjustment mechanism (3) fixedly mounted on the base, and a flattening mechanism (4) fixedly mounted on the cylinder; the flattening mechanism comprises a rotating assembly (41) fixedly mounted on the cylinder, a pressure roller assembly (42) fixedly mounted on the rotating assembly, and a closing assembly (43) slidably mounted on the rotating assembly; The adjustment mechanism comprises a placement seat (31) fixedly arranged on the base, a first slide groove (32) symmetrically arranged on the placement seat, a first mounting groove (33) symmetrically arranged on the placement seat, a second mounting groove (34) fixedly arranged on the placement seat, a limit plate (35) slidably arranged on the first slide groove, and a lifting device (36) arranged on the first mounting groove and the second mounting groove; The lifting device comprises a first adjusting rod (361) fixed on the limiting plate and passing through the first mounting groove, a first gear (362) rotatably arranged on the first adjusting rod, a second adjusting rod (363) rotatably arranged on the placement seat, a second gear (364) fixed on the second adjusting rod, a third gear (365) fixed on the second adjusting rod, a chain (366) sleeved on the third gear, and a handle (367) fixed on the second adjusting rod; The rotating assembly comprises a first rotating seat (411) fixed on the cylinder, a plurality of first rotating blocks (412) fixed on the first rotating seat, a plurality of first telescopic rods (413) fixed on the first rotating seat, a second rotating seat (414) rotatably mounted on the first telescopic rods, a second sliding groove (415) fixed on the second rotating seat, and a plurality of second rotating blocks (416) fixed on the second rotating seat; the first rotating seat and the second rotating seat are connected via a first spring (417); The pressure roller assembly comprises a plurality of third slide grooves (421) fixedly arranged on the second rotating seat, a third mounting groove (422) fixedly arranged on the third slide groove, a pressure roller seat (423) slidably arranged on the third slide groove, and a roller (424) rotatably sleeved on the pressure roller seat; the pressure roller seat and the third mounting groove are connected via a second telescopic rod (425); the pressure roller seat and the third mounting groove are connected via a second spring (426); The closing assembly comprises a fourth slide groove (431) fixedly arranged on the second rotating seat, a closing plate (432) slidably arranged on the fourth slide groove, a groove (433) fixedly arranged on the second rotating seat, and a limiting groove (434) fixedly arranged on the second rotating seat; the closing plate and the fourth slide groove are connected via a third spring (435); the closing plate and the first rotating seat are connected via a traction rope (436); When in use, the circuit board is passed through the through hole of the limiting plate and placed on the placing seat, the handle is rotated to drive the second adjusting rod on one side to rotate, the third gear is rotated, and the second adjusting rod on the other side is rotated through the chain transmission, the second adjusting rod drives the second gear to rotate, the second gear drives the first gear to rotate, and the first gear drives the first adjusting rod to move in the vertical direction, that is, drives the limiting plate to move on the first slide groove. After adjusting the height, start the cylinder to push the first rotating seat to move downward, and the second rotating seat is arranged on the first telescopic rod, so the second rotating seat will also drop synchronously. When the roller contacts the circuit board, the first telescopic rod will be squeezed and contracted, the distance between the first rotating seat and the second rotating seat will be shortened, the first spring will be compressed, the traction rope will be relaxed, and the third spring will push the closing plate to slide on the fourth slide groove, but the pressure roller seat has not been retracted at this time, so one end of the closing plate will resist the pressure roller seat, and when the inclined surface of the first rotating block contacts the inclined surface of the second rotating block, the first rotating block will push the second rotating block to rotate during the downward movement, and then push the second rotating seat to rotate, the first spring is twisted, the first telescopic rod slides on the second slide groove, and the second rotating seat rotates. When the roller seat rotates, it will drive the pressure roller seat to rotate together. When the roller rotates with the pressure roller seat, it will also rotate on the pressure roller seat. During the rotation process, the roller will flatten the corners of the circuit board. After rotating to a certain angle, the third spring is compressed to a certain extent, the pressure roller seat and the closing plate are misaligned, and the third spring pushes the closing plate to move. The inclined surface on the right side of the closing plate facilitates the contact between the closing plate and the roller. The third spring pushes the right side of the closing plate to fully enter the limiting groove. At this time, the inclined surface on the left side of the closing plate is also fully fitted with the inclined surface on the fourth slide groove. At the same time, the second spring also applies a The downward force is transmitted to the closing plate through the roller, making the closing plate closer to the limiting groove, thereby forming a plane on the bottom surface of the second rotating seat, flattening the circuit board as a whole. After the second rotating seat contacts the limiting plate, it cannot move downward any further, that is, the circuit board is flattened to the same height as the limiting plate. When resetting, the cylinder drives the first rotating seat to move upward, the first spring will reset and drive the second rotating seat to rotate in the opposite direction and reset. At the same time, the traction rope is stretched, driving the closing plate back to the fourth slide groove, the third spring is compressed, and the second spring resets to push the pressure roller seat to move downward and reset.

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