CN110978467B

CN110978467B - FPC bending forming device and FPC bending forming equipment

Info

Publication number: CN110978467B
Application number: CN201911322187.6A
Authority: CN
Inventors: 谢稳; 梁军
Original assignee: Dongguan Huabei Electronic Technology Co Ltd
Current assignee: Dongguan Huabei Electronic Technology Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2021-07-23
Anticipated expiration: 2039-12-19
Also published as: CN110978467A

Abstract

The invention discloses a FPC bending forming device, which comprises a pressing module, a forming piece and a bearing table, wherein the pressing module comprises a middle plate, a pressing plate and a guide assembly; the pressing plate moves linearly vertically downwards to drive the pressing head to abut against and press the FPC to be positioned on the bearing part and drive the forming part to press the FPC right against the step part, and the stop block pushes the forming part of the forming part fixed with the sliding block to slide towards the wedge-shaped structure of the step part by virtue of the vertical downward linear motion of the middle plate, so that the FPC is bent to form a bent shape consistent with the wedge-shaped structure, the bent FPC is made to rebound and then just reach the required angle, and the installation requirement is met; the invention also provides FPC bending forming equipment, which simplifies the FPC bending process, improves the bending efficiency, has high precision, is convenient to operate, has a simple structure, and greatly improves the production efficiency.

Description

FPC bending forming device and FPC bending forming equipment

Technical Field

The invention relates to the field of electronic equipment, in particular to a device for bending and forming an FPC (flexible printed circuit).

Background

The flexible printed circuit board is a flexible printed circuit board which is made of polyimide or polyester film as a base material and has high reliability and excellent performance. The printed circuit board has the characteristics of high wiring density, light weight, thin thickness and good bending property, and has the advantages which are not possessed by a plurality of rigid printed circuit boards. The FPC can be freely bent, wound and folded, can be randomly arranged according to the requirement of spatial layout, and can be randomly moved and stretched in a three-dimensional space, so that the integration of component assembly and wire connection is realized.

The flexible circuit board products can be assembled generally by bending, and for some mobile terminals such as mobile phones, due to the fact that the internal space of the mobile terminals is small and the bending degree of the flexible circuit board is required to be large, the flexible circuit board needs to be pre-bent in the assembling process; among the prior art, because manual operation's difference is big, can lead to FPC's the effect of buckling inconsistent, buckle inefficiency and rejection rate scheduling problem, adopt equipment to replace manual operation can improve production efficiency, but the FPC after current equipment of buckling is buckled has the trend of kick-backing into original state to it makes the FPC after buckling to take place the bounce-back, can't reach the angle of demand to produce FPC district's resilience force of buckling.

Therefore, what is needed is a FPC bending apparatus, which makes the bent FPC just reach the required angle after rebounding, so as to ensure that it meets the installation requirement.

Disclosure of Invention

The invention aims to provide a FPC bending forming device, which enables a bent FPC to rebound and then just reach a required angle so as to ensure that the FPC meets the installation requirement.

Another objective of the present invention is to provide a FPC bending apparatus, which has a FPC bending apparatus, and the FPC bending apparatus makes the bent FPC rebound to a required angle, so as to ensure that the FPC meets the installation requirement.

In order to achieve the above purpose, the invention provides a bending and forming device for an FPC, which is used for bending and forming the FPC and comprises a pressing module, a forming part and a bearing table, wherein the pressing module comprises a middle plate, a pressing plate and a guide assembly, the middle plate is horizontally arranged and parallel to the pressing plate, the middle plate is positioned right above the pressing plate, the middle plate is connected with the pressing plate through the guide assembly in an elastic structure, and the linear motion of the middle plate in the vertical direction pushes the pressing plate to make linear motion in the vertical direction through the guide and the elasticity of the guide assembly; the forming module comprises a pressing head, a sliding block and a stop block, the pressing head is fixed on the bottom surface of the pressing plate and used for abutting against and positioning the FPC, the sliding block is arranged on the pressing plate in a horizontally sliding mode, the stop block is fixed on the middle plate and protrudes towards the sliding block, the stop block is provided with an inclined surface structure, and the inclined surface structure abuts against the sliding block and pushes the sliding block to slide in the horizontal direction through linear motion in the vertical direction; the molding piece comprises a body part and a molding part protruding out of the body part, and the body part is fixed on the bottom surface of the sliding block; the bearing platform comprises a bearing part for bearing the FPC, the bearing part is provided with a plurality of adsorption holes for communicating with external vacuum-pumping equipment, the bearing part is positioned under the pressure head, the end part of the bearing part is sunken to form a step part of a wedge-shaped structure, and the step part is positioned under the forming part; the vertical downward linear motion of clamp plate drives the pressure head and supports to press location FPC on the supporting part and drive the shaping portion to push down just right FPC on the step portion, and the dog borrows the vertical downward linear motion of medium plate and promotes the shaping portion of the shaping piece fixed with the slider to slide towards the wedge structure of step portion to make FPC buckle and form and carve the shape of buckling that the structure is unanimous.

Compared with the prior art, the FPC bending forming device of the invention has the advantages that the middle plate is connected with the pressing plate through the guide assembly in an elastic structure, the pressing plate is pushed to vertically and downwardly move linearly under the guide effect and elasticity of the guide assembly, the pressing head is driven to abut against and position the FPC on the bearing part and drive the forming part to press the FPC right against the step part, so that the FPC is preliminarily bent, the distance between the middle plate and the pressing plate is adjustable due to the elastic deformation of the guide assembly, when the position of the pressing plate is unchanged, the middle plate can continuously move vertically and downwardly relative to the pressing plate, so that the inclined plane structure fixed on the middle plate continuously moves vertically and downwardly to abut against the sliding block and push the sliding block to slide in the horizontal direction, the forming part of the forming part is driven to slide towards the wedge-shaped structure of the step part, the FPC is further bent to form a bending shape consistent with the wedge-shaped structure, after the abutting against and pressing of the FPC is removed, the FPC after buckling will rebound under the effect of self resilience for the degree of buckling after the FPC rebounds just reaches the angle of demand, with the FPC after guaranteeing to buckle satisfies the installation demand.

Preferably, the guide assembly of the present invention includes an elastic member, the elastic member is inserted between the middle plate and the pressing plate, and the distance between the middle plate and the pressing plate is changed by the elastic deformation of the elastic member.

Preferably, the elastic member of the present invention is an elastic thimble, the elastic thimble includes a telescopic portion, and the distance between the middle plate and the pressing plate is changed by the elastic expansion of the telescopic portion.

Preferably, the elastic member of the present invention is in a spring structure.

Preferably, the guide assembly of the present invention further comprises a height limiting member, wherein the lower end of the height limiting member is connected to the pressing plate, and the upper end of the height limiting member slidably penetrates through the middle plate and forms a convex resisting portion. The minimum interval of medium plate and clamp plate has been injectd to limit for height piece, avoids the medium plate to support and presses in the clamp plate, causes the clamp plate to damage.

Preferably, the molding module further comprises a guide rod, one end of the guide rod is horizontally arranged on the pressing plate, and the other end of the guide rod horizontally slides and penetrates through the sliding block. The slider slides in the horizontal direction under the direction of guide arm to drive the formed part of connecting in the slide bottom surface and slide in the horizontal direction along the guide arm, borrow the accurate direction assurance FPC of guide arm and buckle the effect unanimously, thereby guarantee the precision that FPC buckles.

Preferably, the molding module further comprises a spring, the spring is sleeved on the guide rod and located between the pressing plate and the sliding block, and the sliding block has a tendency of being far away from the pressing plate constantly by virtue of the spring. When the stop block vertically moves upwards, the sliding block horizontally slides in the direction away from the pressing plate by means of the elasticity of the spring, so that the automatic reset of the sliding block is realized.

Preferably, the forming module further includes a rolling bearing pivotally connected to the sliding block, and the linear motion of the inclined plane structure in the vertical direction is pressed against the rolling bearing to push the sliding block to slide in the horizontal direction.

Preferably, the bearing table further comprises a limiting block, and the limiting block is arranged right below the forming part and is in flush butt joint with the step part.

The invention also provides FPC bending forming equipment, which comprises the FPC bending forming device; the output end of the driving device is connected with the middle plate, and the driving device drives the middle plate to do linear reciprocating motion in the vertical direction; and the control device is electrically connected with the driving device and controls the driving device to work.

Compared with the prior art, the FPC bending forming equipment has the FPC bending forming device, the FPC is bent to form the bending shape consistent with the wedge-shaped structure, so that the bent FPC can be rebounded to just reach the required angle, and the bent FPC can meet the installation requirement; the FPC bending forming equipment has the advantages that a series of linkage mechanisms are arranged, so that the bending processing process of the FPC is automated, the FPC processing flow is simplified, the bending efficiency is improved, the bending accuracy is high, the bending effect of the FPC is consistent, the rejection rate is reduced, the operation is convenient, the structure is simple, and the production efficiency is greatly improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the FPC bending molding apparatus.

Fig. 2 is a schematic view of the overall structure of the FPC bending apparatus.

FIG. 3 is a schematic cross-sectional view of a slider.

Fig. 4 is a schematic view of the overall structure of the pressing module and the forming module.

Fig. 5 is a schematic view of the overall structure of the carrier and the ram.

Fig. 6 is a schematic structural diagram of the carrier stage.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, fig. 1 is a schematic view of an overall structure of an FPC bending apparatus 1 according to an embodiment of the present invention, where the FPC bending apparatus 1 includes an FPC bending apparatus 100, a driving apparatus 200 and a control apparatus 300, an output end of the driving apparatus 200 is connected to a middle plate 11, and the driving apparatus 200 drives the middle plate 11 to perform a linear reciprocating motion in a vertical direction; the control device 300 is electrically connected with the driving device 200, and the control device 300 controls the driving device 200 to work; according to the FPC bending forming equipment 1, due to the FPC bending forming device 100, the FPC is bent to form the bending shape consistent with the wedge-shaped structure 321 of the FPC bending forming device 100, when the pressing of the forming piece 24 of the FPC bending forming device 100 on the FPC is removed, the bent FPC rebounds under the action of self resilience, so that the bending degree of the rebounded FPC just reaches the required angle, and the bent FPC meets the installation requirement; the FPC bending forming equipment 1 is convenient to operate, simple in structure and capable of greatly improving production efficiency.

With reference to fig. 2-5, the FPC bending apparatus 100 of the present invention will be further described, in which the FPC bending apparatus 100 includes a pressing module 10, a forming module 20, a molding member 24 and a carrying platform 30; as shown in fig. 2, the pressing module 10 includes a middle plate 11, a pressing plate 12 and a guiding component 13, the middle plate 11 is horizontally disposed and parallel to the pressing plate 12, the middle plate 11 is located right above the pressing plate 12, the middle plate 11 and the pressing plate 12 are connected by the guiding component 13 in an elastic structure, and a linear motion of the middle plate 11 in a vertical direction (i.e., a y direction shown in the figure) pushes the pressing plate 12 to make a linear motion in the vertical direction by the guidance and elasticity of the guiding component 13; as shown in fig. 2, the molding module 20 includes a pressing head 21, a slider 22 and a stopper 23, the pressing head 21 is fixed on the bottom surface of the pressing plate 12 for abutting against and positioning the FPC, the slider 22 is horizontally slidably disposed on the pressing plate 12, the stopper 23 is fixed on the middle plate 11 and protrudes toward the slider 22, the stopper 23 has an inclined surface structure 231, and the linear motion of the inclined surface structure 231 in the vertical direction will abut against the slider 22 and push the slider 22 to slide in the horizontal direction (i.e., the x direction shown in fig. 2); the molding member 24 includes a body portion 241 and a molding portion 242 protruding out of the body portion 241, the body portion 241 is fixed to the bottom surface of the slider 22; as shown in fig. 5, the carrying table 30 includes a carrying portion 31 for carrying the FPC, the carrying portion 31 is provided with a plurality of absorption holes for communicating with an external vacuum-pumping device, the carrying portion 31 is located right below the pressure head 21, a recess at an end of the carrying portion 31 forms a step portion 32 of the wedge-shaped structure 321, specifically, as shown in fig. 2, the carrying table 30 further includes a limiting block 33, the limiting block 33 is located right below the molding member 24 and is flush and butt-jointed with the step portion 32; the specific operation steps are that an operator lays the FPC on the bearing part 31, then starts the vacuum-pumping device to fix the FPC on the bearing part 31 in an adsorption manner, and simultaneously starts the driving device 200 under the control of the control device 300, the driving device 200 drives the middle plate 11 and the pressing plate 12 to make linear motion vertically and downwards together, the pressing head 21 is driven to abut against and position the FPC on the bearing part 31 and drive the forming part 242 to press the opposite FPC on the step part 32 downwards, the stop dog 23 pushes the forming part 242 of the forming part 24 fixed with the sliding block 22 to slide towards the wedge-shaped structure 321 of the step part 32 by virtue of the vertical and downward linear motion of the middle plate 11, so that the FPC is bent to form a bent shape consistent with the wedge-shaped structure 321, and the bending of the FPC is finished; then the driving device 200 drives the middle plate 11 to vertically move upwards, and drives the stop dog 23 to vertically move upwards, so that the slide block 22 slides to an initial position, the driving device 200 continuously drives the middle plate 11 and the pressing plate 12 to vertically move upwards to return to the initial position in a straight line manner, an operator takes out the FPC after bending forming is completed, the FPC after bending rebounds under the action of self resilience as the FPC removes the pressing of the forming part 24 against the FPC, and the bending degree of the FPC after rebounding just reaches a required angle, so that the taken-out FPC reaches a required angle, and further bending of the FPC for one time is completed; more FPC is required to be bent, and the operation is repeated; therefore, in the FPC bending and forming device 100 of the present invention, the middle plate 11 is connected to the pressing plate 12 through the guiding component 13 having an elastic structure, the pressing plate 12 is pushed to move linearly vertically and downwardly by the guiding action and elasticity of the guiding component 13, the pressing head 21 is driven to press and position the FPC on the bearing portion 31 and the forming portion 242 is driven to press the FPC opposite to the step portion 32, so that the FPC is primarily bent, the distance between the middle plate 11 and the pressing plate 12 is adjustable due to the elastic deformation of the guiding component 13, when the position of the pressing plate 12 is not changed, the middle plate 11 can continuously move vertically and downwardly relative to the pressing plate 12, so that the inclined surface structure 231 fixed to the middle plate 11 continuously moves vertically and downwardly to press against the slider 22 and push the slider 22 to slide in the horizontal direction, the forming portion 242 of the forming member 24 is driven to slide towards the wedge-shaped structure 321 of the step portion 32, so that the FPC is further bent to form a bending shape consistent with the wedge-shaped structure 321, the FPC after bending is rebounded to just reach the required angle, so that the FPC after bending can meet the installation requirement.

As shown in fig. 2, the guiding assembly 13 of the present invention includes an elastic member, the elastic member is disposed between the middle plate 11 and the pressing plate 12, and the distance between the middle plate 11 and the pressing plate 12 is changed by elastic deformation of the elastic member, specifically, the elastic member is an elastic thimble 131, and the distance between the middle plate 11 and the pressing plate 12 is changed by elastic expansion and contraction of the expansion portion, but the method for changing the distance between the middle plate 11 and the pressing plate 12 is not limited thereto, and the elastic member may be in a spring structure or other elastic structures to achieve the above functions; the guide assembly 13 further comprises a height limiting member 132, the lower end of the height limiting member 132 is connected with the pressure plate 12, and the upper end of the height limiting member 132 slidably penetrates through the middle plate 11 and forms a convex resisting part; the height limiting member 132 limits the minimum distance between the middle plate 11 and the pressing plate 12, and prevents the middle plate 11 from pressing against the pressing plate 12, which may damage the pressing plate 12.

As shown in fig. 3 and 4, the molding module 20 of the present invention further includes a guide rod 25, as shown in fig. 3, one end of the guide rod 25 is horizontally disposed on the pressing plate 12, and the other end of the guide rod 25 horizontally slides and penetrates through the sliding block 22; the sliding block 22 slides in the horizontal direction under the guidance of the guide rod 25, so as to drive the forming part 24 connected to the bottom surface of the sliding plate to slide in the horizontal direction along the guide rod 25, and the accurate guidance of the guide rod 25 ensures that the bending effects of the FPC are consistent, thereby ensuring the bending precision of the FPC; specifically, the forming module 20 of the present invention further includes a spring 26, the spring 26 is parallel to the guide rods 25 and is disposed between the two guide rods 25, but not limited thereto, the spring 26 may also be sleeved on the guide rods 25 and is disposed between the pressing plate 12 and the sliding block 22, and the sliding block 22 has a tendency of being away from the pressing plate 12 by the spring 26; when the stop 23 moves vertically upwards, the slide block 22 horizontally slides in a direction away from the pressure plate 12 by the elasticity of the spring 26, so that the automatic reset of the slide block 22 is realized; more specifically, the forming module 20 of the present invention further includes a rolling bearing 27 pivotally connected to the sliding block 22, as shown in fig. 4, the linear motion of the inclined plane structure 231 in the vertical direction and the rolling bearing 27 press against each other and push the sliding block 22 to slide in the horizontal direction.

As shown in fig. 6, fig. 6 is a schematic structural diagram of the plummer 30, the FPC before being molded is straight, and when the FPC bent by the FPC bending molding device 1 of the present invention is in accordance with the wedge-shaped structure 321 of the step portion 32, after the pressing of the molding member 24 of the FPC bending molding apparatus 100 on the FPC is removed, the bent FPC will rebound under the action of its own resilience, so that the bending degree of the rebounded FPC just reaches the required angle.

Referring to fig. 1-6, in the FPC bending and forming device 100 of the present invention, the vertical downward linear motion of the pressing plate 12 drives the pressing head 21 to press and position the FPC on the bearing portion 31 and the forming portion 242 to press the opposite FPC on the step portion 32, and the stopper 23 pushes the forming portion 242 of the forming member 24 fixed to the slider 22 to slide toward the wedge-shaped structure 321 of the step portion 32 by the vertical downward linear motion of the middle plate 11, so that the FPC is bent to form a bending shape consistent with the wedge-shaped structure 321, and the bent FPC is rebounded to reach a required angle, so as to ensure that the bent FPC meets the installation requirement; the FPC bending forming equipment 1 is convenient to operate, simple in structure and capable of greatly improving production efficiency.

The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.

Claims

1. A FPC bending forming device is used for bending and forming FPC and is characterized by comprising,

the pressing module comprises a middle plate, a pressing plate and a guide assembly, the middle plate is horizontally arranged and is parallel to the pressing plate, the middle plate is positioned right above the pressing plate, the middle plate is connected with the pressing plate through the guide assembly in an elastic structure, and the linear motion of the middle plate in the vertical direction pushes the pressing plate to linearly move in the vertical direction through the guide and the elasticity of the guide assembly;

the molding module comprises a pressure head, a sliding block and a stop block, wherein the pressure head is fixed on the bottom surface of the pressure plate and used for abutting against and positioning the FPC, the sliding block is horizontally arranged on the pressure plate in a sliding manner, the stop block is fixed on the middle plate and protrudes towards the direction of the sliding block, the stop block is provided with an inclined surface structure, and the inclined surface structure abuts against the sliding block and pushes the sliding block to slide in the horizontal direction through linear motion in the vertical direction;

the molded part comprises a body part and a molded part protruding out of the body part, and the body part is fixed on the bottom surface of the slider;

the bearing platform comprises a bearing part for bearing the FPC, the bearing part is provided with a plurality of adsorption holes for communicating with external vacuum-pumping equipment, the bearing part is positioned under the pressure head, a recess at the end part of the bearing part forms a step part of a wedge-shaped structure, and the step part is positioned under the forming part;

the vertical downward linear motion of clamp plate drives the pressure head to support and press location FPC on the supporting part and drive the shaping portion to push down just right FPC on the step portion, the dog borrows the vertical downward linear motion of medium plate and promotes the shaping portion of the shaping piece fixed with the slider to slide towards the wedge-shaped structure of step portion to make FPC buckle and form the form of buckling unanimous with wedge-shaped structure.

2. The FPC bending molding apparatus of claim 1, wherein the guide assembly comprises an elastic member, the elastic member is inserted between the middle plate and the pressing plate, and the distance between the middle plate and the pressing plate is changed by the elastic deformation of the elastic member.

3. The FPC bending molding device according to claim 2, wherein the elastic member is an elastic pin, the elastic pin includes a telescopic portion, and the distance between the middle plate and the pressing plate is changed by elastic expansion of the telescopic portion.

4. The FPC bending molding apparatus of claim 2, wherein the elastic member has a spring structure.

5. The FPC bending and forming device of claim 1, wherein the guide assembly further comprises a height limiting member, a lower end of the height limiting member is connected with the pressure plate, and an upper end of the height limiting member slidably penetrates through the middle plate and forms a convex resisting part.

6. The FPC bending and forming device of claim 1, wherein the forming module further comprises a guide rod, one end of the guide rod is horizontally disposed on the pressing plate, and the other end of the guide rod horizontally slides and penetrates through the sliding block.

7. The FPC bending and forming device of claim 6, wherein the forming module further comprises a spring, the spring is sleeved on the guide rod and located between the pressing plate and the sliding block, and the sliding block has a constant tendency to move away from the pressing plate by the spring.

8. The FPC bending and forming device of claim 1, wherein the forming module further comprises a rolling bearing pivoted to the slider, and the linear motion of the inclined structure in the vertical direction presses against the rolling bearing and pushes the slider to slide in the horizontal direction.

9. The FPC bending molding apparatus of claim 1, wherein the carrier further comprises a stopper disposed directly under the molding member and flush with the step.

10. An FPC bending forming device is characterized by comprising,

the FPC bending molding apparatus as claimed in any one of claims 1 to 9;

the output end of the driving device is connected with the middle plate, and the driving device drives the middle plate to do linear reciprocating motion in the vertical direction;

and the control device is electrically connected with the driving device and controls the work of the driving device.