Bending corner processing equipment for flexible circuit board

Abstract

The invention relates to the technical field of electrical element manufacturing equipment, and discloses bending corner processing equipment for a flexible circuit board, which comprises a transfer part, a pre-bending part for primarily bending the flexible circuit board and a bending part for completely bending the flexible circuit board are sequentially arranged outside the transfer part, and the transfer part comprises a rotating part. Cover plates are fixedly connected to the upper and lower ends of the rotating part, fixing shafts are uniformly and fixedly connected to the circumferential outer surface of the rotating part, positioning parts are fixedly connected to the other ends of the fixing shafts, and limiting parts are arranged on the inner sides of the positioning parts. According to the invention, the non-bent flexible circuit board can be comprehensively limited, the non-uniform bending of the non-bent flexible circuit board is avoided, the top end of the flexible circuit board is limited by the flexible board during pre-bending and complete bending, the bottom end of the flexible circuit board is supported by the supporting plate, the bending area of the flexible circuit board is protected by the bending angle of the abutting frame, and the bending efficiency of the flexible circuit board is improved. And non-uniform bending of the bending area of the flexible circuit board in the transfer process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical component manufacturing, and in particular to a bending corner processing device for a flexible circuit board. Background Art

[0002] The bending and corner processing technology of flexible circuit boards is an important link in its production process. Its main purpose is to meet the requirements of miniaturization, lightweight and high-density installation of electronic products. After ensuring that the surface of the flexible circuit board is clean and free of oil and dust, the material is preheated to improve its flexibility. Then, different bending processes are selected according to the batch and shape of the flexible circuit board. Small batches or complex shapes of flexible circuit boards are bent manually, and large-scale production of flexible circuit boards is bent by bending machine molds to ensure the consistency of bending.

[0003] When the existing bending machine performs the bending operation, the flexible circuit board is first accurately placed on the predetermined position of the mold, and the flexible circuit board is bent along the shape of the mold through the mechanical force of the mold of the bending machine. In order to ensure that the mechanical force can bend it, the bending area of ​​the flexible circuit board needs to be in an unrestricted structural state. However, due to the material characteristics of the flexible circuit board itself, during the bending transfer process of the flexible circuit board, if only the clamping end is fixed and other parts are free, this may cause the circuit board to bend unevenly during bending, resulting in inconsistent bending radius. Uneven bending stress may cause solder joints to fall off or components to be damaged, resulting in the bending angle not meeting the design requirements, affecting the function of the product. Uneven bending may cause separation between layers, which may cause conductor breakage or insulation layer damage in this area. Summary of the invention

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a bending corner processing device for a flexible circuit board, which can effectively solve the problem of uneven bending of the flexible circuit board due to incomplete fixing position before bending in the prior art.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention provides a bending corner processing device for a flexible circuit board, comprising:

[0009] A transfer part for limiting the position of the flexible circuit board, the outside of the transfer part is sequentially provided with a pre-bending part for initially bending the flexible circuit board and a bending part for completely bending the flexible circuit board, the transfer part includes a rotating part, the upper and lower ends of the rotating part are fixedly connected to cover plates, the circumferential outer surface of the rotating part is evenly fixedly connected to a fixed shaft, the other end of the fixed shaft is fixedly connected to a positioning part, and the inner side of the positioning part is provided with a limiting part for limiting the position of the flexible circuit board before and after bending.

[0010] Furthermore, an electric telescopic rod is fixedly connected to the top end of the inner side of the positioning member, a positioning block is fixedly connected to the bottom end of the electric telescopic rod, the positioning block is slidably connected to the inner wall of the positioning member, a positioning plate is provided at the bottom end of the inner side of the positioning member, a positioning groove is provided on the side of the positioning plate away from the positioning member, a linkage member is provided on the inner side of the positioning groove, and the other end of the linkage member is connected to the side of the limiting member.

[0011] Furthermore, the limit member includes a limit plate 1 arranged at the middle position of the outer side of the positioning plate, the two ends of the limit plate 1 are connected to the limit plate 2 by connecting rods symmetrically arranged on the outer side thereof, and a rotating shaft is provided on both sides of the limit plate for damping rotation, a support frame is fixedly connected to the middle of the circumferential outer surface of the rotating shaft, and a side block is symmetrically fixedly connected to the side of the circumferential outer surface of the rotating shaft parallel to the support frame, the side of the side block away from the support frame is tightly fitted with the stopper, and the other end of the stopper is elastically connected to the inner wall of the limit plate 2, the inner sides of the limit plate 1 and the limit plate 2 are elastically connected with a support plate, and the side of the positioning block away from the positioning member is fixedly connected with a flexible plate.

[0012] Furthermore, the limit plate is provided with a notch on both sides, the bottom end of the limit plate is provided with a bottom groove, the limit plate is provided with a limit groove on both sides, a connecting rod is provided on the inner side of the limit groove, the side of the connecting rod close to the positioning plate is rotatably connected to the inner wall of the limit groove, the side of the connecting rod away from the positioning plate is slidably connected to the inner wall of the limit groove, the side of the connecting rod away from the positioning plate is rotatably connected to a main shaft, a cross plate is sleeved on the outer side of the main shaft, an elastic sheet is elastically connected to the top end of the main shaft, and in the initial state, the elastic sheet is located inside the main shaft close to the side of the positioning piece.

[0013] Furthermore, the linkage member includes a gear shaft rotatably connected to the inner side of the positioning groove, the gear shaft passes through groove one, the end of the gear shaft away from the positioning groove is fixedly connected to a gear, the bottom end of the gear passes through the bottom groove, the gear is embedded in the inner side of a limiting plate, the circumferential outer surface of the gear shaft is symmetrically meshed with an L-shaped rack, the other end of the L-shaped rack is fixedly connected to a positioning rod, and the other end of the positioning rod is fixedly connected to two side edges of the limiting plate.

[0014] Furthermore, two ends of the second limiting plate are provided with slots, and a second cross plate is slidably connected to the inner side of the second slot. In an initial state, the second cross plate fits with the stopper, so that the stopper fits tightly with the side block, and the rotating shaft is restricted and cannot rotate. A groove is provided on the side of the second cross plate close to the support frame, and an elastic sheet is elastically connected to the top of the second cross plate. In an initial state, the second elastic sheet fits with the bottom end of the support plate. A second main shaft is fixedly connected to the middle part of the second cross plate, and the second main shaft is rotatably connected to the side of the connecting rod away from the positioning plate.

[0015] Furthermore, an annular groove is provided on the surface of the cover plate at a position away from the center of the circle, a tooth plate is fixedly provided on the inner side of the annular groove, an oblique groove is provided on the side of the annular groove, and the positioning member is located above the annular groove.

[0016] Beneficial Effects

[0017] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0018] The present invention is provided with a linkage part. The electric telescopic rod is started to drive the positioning block to move downward, and the positioning block drives the flexible board to move downward until the bottom end of the flexible board made of flexible material is in contact with the top end of the flexible circuit board, and the upper and lower surfaces of the flexible circuit board are respectively in contact with the flexible board and the support plate, and as the rotating part drives the fixed shaft to rotate, the fixed shaft drives the positioning part to rotate, and the flexible circuit board rotates toward the pre-bending interval of the flexible circuit board, that is, the pre-bending part. In this process, the gear is meshed and connected with the toothed plate, and as the gear rotates, the gear shaft rotates, and the rotation of the gear drives the gear shaft to rotate. The rotation of the gear shaft drives the two L-shaped racks to move in the opposite direction, and the L-shaped rack drives the second limit plate to move in the direction of the first limit plate, so as to realize The fixed interval below is now contracted, and then the pre-bending part pre-bends the flexible circuit board. The flexible board is deformed with the pre-bending pressure, and the connecting rod is deformed with the change of the distance between the limit plate 1 and the limit plate 2. The movement of the connecting rod drives the horizontal plate 2 in the limit plate 2 to move. The movement of the horizontal plate 2 no longer restricts the position of the stopper, and the movement of the stopper no longer restricts the position of the support frame. When the flexible circuit board is pre-bent, its top end is restricted by the flexible board and its bottom end is supported by the support plate. The bending angle of the support frame focuses on protecting the bending area of ​​the flexible circuit board to avoid uneven bending in the bending area of ​​the flexible circuit board during subsequent transfer.

[0019] The present invention provides a limiting member. When the limiting member moves to the pre-bending area, the limiting plate 2 moves toward the limiting plate 1 to shrink, thereby changing the supporting area for the flexible circuit board and reducing the size of the supporting area for the flexible circuit board as a whole to the size required for bending. The connecting rod is deformed to respectively drive the main shaft 2 in the limiting plate 2 and the main shaft 1 in the limiting plate 1 to move. The movement of the main shaft 2 drives the movement of the cross plate 2. The cross plate 2 moves into the slot 2 and no longer supports the bottom end of the cross plate 2, thereby reducing the friction of the support plate on the flexible circuit board during the movement of the limiting plate 2. At the same time, the cross plate 2 The movement drives the groove to move, and the movement of the groove no longer limits the stopper, and the stopper no longer engages and limits the support frame. The support frame changes from a state fixed on both sides of the limit plate to a state that can rotate on both sides of the limit plate. The movement of the main shaft drives the movement of the cross plate, and the movement of the cross plate drives the movement of the elastic sheet, from a state engaged in the groove to a state in the middle of the limit plate. The elastic sheet supports the support plate, and the support plate moves upward by a certain displacement, so that the support plate is closely fitted with the flexible circuit board, thereby ensuring that the position of the flexible circuit board will not shift during the bending process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the transfer part of an embodiment of the present invention;

[0023] Figure 3 It is a perspective schematic diagram of the connection structure of the positioning member and the limiting member according to an embodiment of the present invention;

[0024] Figure 4 It is a perspective schematic diagram of the linkage connection structure of an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal separation of the second limiting plate according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of a support plate according to an embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the cover plate structure according to an embodiment of the present invention.

[0028] The numbers in the figure represent: 1, transfer part; 11, cover plate; 12, rotating part; 13, fixed shaft; 14, positioning part; 141, electric telescopic rod; 142, positioning block; 145, positioning plate; 146, positioning groove; 15, limiting part; 151, limiting plate 1; 1511, notch 1; 1512, bottom groove; 1513, horizontal plate 1; 1514, elastic sheet 1; 1515, main shaft 1; 152, support plate; 153, connecting rod; 154, Limiting groove; 155, limiting plate 2; 1551, notch 2; 1552, horizontal plate 2; 1553, groove; 1554, elastic sheet 2; 1555, main shaft 2; 156, support; 157, flexible plate; 158, rotating shaft; 1581, side block; 159, stopper; 161, gear shaft; 162, gear; 163, L-shaped rack; 164, positioning rod; 17, gear plate; 18, inclined groove; 19, annular groove; 2, pre-bending portion; 3, bending portion. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention will be further described below in conjunction with the embodiments.

[0031] Example:

[0032] See also Figure 1-Figure 7 The present invention provides a technical solution, a bending corner processing device for a flexible circuit board comprises:

[0033] refer to Figure 1 and Figure 2 The bending device includes a transfer part 1 for transferring the flexible circuit board. The outside of the transfer part 1 is divided into four parts, namely, a loading area for receiving the flexible circuit board, a pre-bending part 2 for pre-bending the flexible circuit board, a bending part 3 for completely bending the flexible circuit board, and an area for unloading the bent flexible circuit board. The transfer part 1 includes a rotating member 12 arranged in the middle, and a plurality of fixed shafts 13 are fixedly connected to the outer circumference of the rotating member 12, such as Figure 3 As shown, in the present invention, four are arranged evenly on the outside of the rotating member 12, and the other end of the fixed shaft 13 is fixedly connected with a positioning member 14, and the positioning member 14 is located above the cover plate 11, as shown in FIG. Figure 7As shown, an annular groove 19 is provided on the surface of the cover plate 11, and the annular groove 19 is located at a position of the cover plate 11 away from its own center, and the width of the annular groove 19 is smaller than the width of the positioning member 14. The rotating member 12 can drive the positioning member 14 to rotate on the surface of the cover plate 11 through the fixed shaft 13, and the two ends of the rotating member 12 are fixedly connected to the cover plate 11 for limiting the moving trajectory of the positioning member 14 and the limit member 15.

[0034] like Figure 2 , Figure 3 and Figure 4 As shown, the top end of the inner wall of the positioning member 14 is fixedly connected with an electric telescopic rod 141, and the bottom end of the electric telescopic rod 141 is fixedly connected with a positioning block 142. The side of the positioning block 142 away from the positioning member 14 is fixedly connected with a flexible plate 157. The positioning block 142 is slidably connected to the inner wall of the positioning member 14. The electric telescopic rod 141 extends to drive the positioning block 142 to move on the inner wall of the positioning member 14, and the positioning block 142 drives the flexible plate 157 to move downward. A positioning plate 145 is arranged at the bottom end of the inner wall of the positioning member 14. The positioning plate 145 is composed of two plates, and the two plates are rotatably connected by a through rotating shaft. The two plates of the positioning plate 145 are in contact with the surface of the cover plate 11 and can slide in a horizontal state on the surface of the cover plate 11. An inclined groove 18 is provided on the side of the annular groove 19. The size of the inclined groove 18 is larger than the size of the plate. When the positioning plate 145 moves to the top of the inclined groove 18, the outer position The plate rotates to an inclined state with the rotating shaft as the center, and a positioning groove 146 is provided on the side of the outer plate away from the positioning member 14, and a limiting plate 151 is fixedly connected to the middle of the positioning groove 146. The positioning groove 146 has two limiting plates 155 that slide symmetrically with the limiting plate 151 as the center. Limiting grooves 154 are provided on the side of the limiting plate 155 close to the limiting plate 151 and on both sides of the limiting plate 155. A connecting rod 153 is provided on the inner side of the limiting groove 154. The side of the connecting rod 153 close to the positioning plate 145 is rotatably connected to the inner wall of the limiting groove 154, and the side of the connecting rod 153 away from the positioning plate 145 is slidably connected to the inner wall of the limiting groove 154. In the initial state, the connecting rod 153 is in an extended state, and the distance between the limiting plate 151 and the limiting plate 155 is the shortest, and the side of the connecting rod 153 away from the positioning plate 145 is located in the middle of the limiting groove 154.

[0035] like Figure 3 , Figure 5 and Figure 6As shown, the limiting member 15 also includes a support frame 156 arranged on the side of the second limiting plate 155, and the support frame 156 is composed of a support plate and an L frame. The bottom end of the support plate is fixedly connected to the L frame, and the other end of the L frame is fixedly connected to the middle of the outer surface of the circular shaft of the rotating shaft 158. In the initial state, the support plate and the second limiting plate 155 are provided with a movable groove near the support frame 156. The inner side of the sliding groove and the rotating shaft 158 ​​damp the rotation, and the damping force between the two is much greater than the weight of the support frame 156 itself. When the support frame 156 is not subjected to external force, it will not cause the rotating shaft to rotate. 158 rotates, the rotating shaft 158 ​​passes through one side of the limiting plate 155, and the outer surface of the circular shaft of the rotating shaft 158 ​​is parallel to the upper surface of the limiting plate 155 and is symmetrically fixedly connected with two side blocks 1581. In the initial state, the outer side of the side block 1581 is tightly fitted with the blocking member 159, and the side block 1581 cannot rotate inside the movable groove. The blocking member 159 includes a rectangular plate fitted with the outer side of the side block 1581, and a fixing rod is fixedly connected to the middle of the side of the rectangular plate away from the rotating shaft 158, and a compression spring is sleeved on the outer side of the fixing rod.

[0036] like Figure 5 As shown, two ends of the limit plate 155 are provided with notches 1551, and a circular groove is provided on the side of the notch 1551 close to the support frame 156. The compression spring of the stopper 159 is installed on the inner side of the circular groove. One end of the fixing rod of the stopper 159 passes through the circular groove and fits with the side of the horizontal plate 1552. The rectangular plate size of the stopper 159 is larger than the circular groove size. In the initial state, the grooves 1553 equidistantly provided on the side of the horizontal plate 1552 are all located on the side of the groove 1553 close to the positioning plate 145, and the top of the horizontal plate 1552 is elastically connected to the bottom of the horizontal plate 1552. The second elastic sheet 1554 is fitted with the bottom end of the support plate 152 to support and limit the second horizontal plate 1552. The support plate 152 includes a slide plate, and a tension spring is elastically connected to the bottom end of the slide plate. The bottom end of the tension spring is connected to the bottom end of the inner wall of the second limiting plate 155. In the initial state, the slide plate of the support plate 152 is fitted with the flexible circuit board under the joint action of the tension spring and the second elastic sheet 1554. The middle part of the second horizontal plate 1552 is fixedly connected with the second main shaft 1555, and one end of the second main shaft 1555 is rotatably connected to the side of the connecting rod 153 away from the positioning plate 145.

[0037] When the distance between the limit plate 151 and the limit plate 2 155 is shortened, the connecting rod 153 drives the main shaft 2 1555 rotatably connected thereto to move, and the main shaft 2 1555 drives the cross plate 2 1552 to move, and the elastic sheet 2 1554 supporting the bottom end of the support plate 152 is moved to the inside of the slot 2 1551. The elastic sheet 2 1554 is deformed under the restriction of the slot 2 1551 and no longer supports the bottom end of the support plate 152. The cross plate of the support plate 152 moves downward slightly, reducing the friction resistance between the surface of the support plate 152 and the flexible circuit board, so that the support plate 152 will not cause friction damage to the surface of the flexible circuit board when it moves toward the limit plate 1 151 along with the limit plate 2 155.

[0038] When the connecting rod 153 drives the main shaft 1555 and the cross plate 1552 to move, the contact surface of the cross plate 1552 and the stopper 159 moves from the flush plane to the groove 1553. The groove 1553 does not limit the stopper 159. The compression spring of the stopper 159 recovers its elastic deformation, and the elastic force drives the stopper 159 to move in the direction of the limit plate 155. The rectangular plate of the stopper 159 no longer fits tightly against the side block 1581 to limit it. The rotating shaft 158 ​​connected to the side damping of the limit plate 155 can drive the support frame 156 to rotate. When the flexible circuit board is pre-bent and bent, the stopper 159 no longer limits the support frame 156. The support frame 156 can rotate outside the limit plate 155 and protect the flexible circuit board transferred after bending to avoid uneven force on the bending degree during the transfer process, and ensure that the flexible circuit board is supported and protected during the transfer process before and after bending.

[0039] like Figure 4 , Figure 6 and Figure 7 As shown, notches 1511 are provided at both ends of the limiting plate 151, and the middle of the notch 1511 close to the positioning plate 145 side passes through the gear shaft 161 of the linkage member, and the gear shaft 161 is rotatably connected to the middle of the inner side of the positioning groove 146, and a gear 162 is fixedly connected to the side of the gear shaft 161 away from the positioning groove 146, and the bottom end of the gear 162 passes through the bottom groove 1512 and is meshed with the gear plate 17, and the outer surface of the gear shaft 161 is symmetrically meshed with two L-shaped racks 163, and positioning rods 164 are fixedly connected at both ends of the L-shaped rack 163, and the positioning rod 164 and the L-shaped rack 163 can slide inside the positioning groove 146, and the gear plate 17 is located at the inner bottom end of the annular groove 19, and the gear plate 17 is set at two sides, the first one is set at the outer side of the transfer part 1 The flexible circuit board feeds to the flexible circuit board pre-bending area, and the second one is set in the inclined groove 18, that is, the flexible circuit board feeds to the flexible circuit board feed area, and the two tooth plates 17 have opposite teeth;

[0040] After the flexible circuit board is transmitted to the area of ​​the limiter 15 through the conveyor belt, the electric telescopic rod 141 is started to drive the positioning block 142 to move downward, and the positioning block 142 drives the flexible board 157 to move downward until the bottom end of the flexible board 157 made of flexible material is in contact with the top end of the flexible circuit board, and the upper and lower surfaces of the flexible circuit board are respectively in contact with the flexible board 157 and the support plate 152, and as the rotating member 12 drives the fixed shaft 13 to rotate, the fixed shaft 13 drives the positioning member 14 to rotate, and the flexible circuit board rotates toward the pre-bending interval of the flexible circuit board, that is, the pre-bending portion 2. In this process, the gear 162 is meshed and connected with the toothed plate 17, and as the gear 162 rotates, the gear shaft 161 is driven to rotate, and the rotation of the gear shaft 161 drives the two L-shaped racks 163 to move in the opposite direction, and the L-shaped rack 163 drives the limiter plate 155 to rotate. The limit plate 151 moves in the direction to realize the contraction of the fixed interval below, and then the pre-bending part 2 pre-bends the flexible circuit board, and the flexible board 157 is deformed with the pre-bending pressure, and the connecting rod 153 is deformed with the change of the distance between the limit plate 151 and the limit plate 2 155, and the movement of the connecting rod 153 drives the horizontal plate 2 1552 in the limit plate 2 155 to move, and the movement of the horizontal plate 2 1552 no longer restricts the position of the stopper 159, and the movement of the stopper 159 no longer restricts the position of the support frame 156. When the flexible circuit board is pre-bent, its top end is restricted by the flexible board 157, and its bottom end is supported by the support plate 152. The bending angle of the support frame 156 focuses on protecting the bending area of ​​the flexible circuit board to avoid uneven bending in the bending area of ​​the flexible circuit board during subsequent transfer.

[0041] When the limiting member 15 moves to the pre-bending portion 2 area, the limiting plate 155 moves toward the limiting plate 151 to shrink, changing the supporting area for the flexible circuit board, reducing the size of the supporting area for the flexible circuit board as a whole to the size required for bending, and the connecting rod 153 deforms to respectively drive the main shaft 1555 in the limiting plate 155 and the main shaft 1515 in the limiting plate 151 to move, and the movement of the main shaft 1555 drives the horizontal plate 1552 to move, and the horizontal plate 1552 moves into the groove 1551 and no longer supports the bottom end of the horizontal plate 1552, thereby reducing the friction of the support plate 152 on the flexible circuit board during the movement of the limiting plate 155, and at the same time, the movement of the horizontal plate 1552 drives the groove 1553 to move, and the groove 1553 moves The stopper 159 is no longer limited, and the stopper 159 no longer squeezes the side block 1581. The rotating shaft 158 ​​can rotate in the movable groove, and the support frame 156 changes from a state fixed on the side of the limiting plate 155 to a state that can rotate on the side of the limiting plate 155. The main shaft 1515 moves to drive the cross plate 1513 to move, and the cross plate 1513 moves to drive the elastic sheet 1514 to move, from a state of being engaged in the slot 1511 to a state in the middle of the limiting plate 151. The elastic sheet 1514 supports the support plate 152, and the support plate 152 moves upward to a certain position, so that the support plate 152 is closely fitted with the flexible circuit board, thereby ensuring that the position of the flexible circuit board will not shift during the bending process of the bending portion 3.

[0042] After the bending is completed, the flexible circuit board rotates to the top of the inclined slot 18. At this time, the positioning plate 145 moves to the top of the inclined slot 18, and the plate at the outer position rotates to an inclined state with the rotation axis as the center. The limiting plate 1 151 and the limiting plate 2 155 located on one side of the plate are both in an inclined state. After the bending is completed, the flexible circuit board is unloaded along the inclined surface under the action of gravity. After the unloading is completed, the rotating member 12 continues to rotate to restore the inclined limiting plate 1 151 and the limiting plate 2 155 to a position parallel to the flexible plate 157. Then the gear 162 meshes with the reverse tooth plate 17, and the gear 162 drives the gear shaft 161 to rotate in the opposite direction, moving the limit plate 2 155 to a position away from the limit plate 1 151 and restoring it to the initial state. At the same time, the stopper 159 returns to the position of squeezing the side of the side block 1581, so that the side block 1581 rotating with the rotating shaft 158 ​​returns to the position tightly fitted with the rectangular block of the stopper 159, so as to carry out the next flexible circuit board feeding and protect the flexible circuit board as a whole.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bending corner processing device for a flexible circuit board, characterized in that: include: A transfer part (1) for limiting the position of a flexible circuit board, wherein the transfer part (1) is provided with a pre-bending part (2) for initially bending the flexible circuit board and a bending part (3) for completely bending the flexible circuit board in sequence on the outside, wherein the transfer part (1) comprises a rotating member (12), wherein both upper and lower ends of the rotating member (12) are fixedly connected to a cover plate (11), a fixed shaft (13) is evenly fixedly connected to the outer surface of the circumference of the rotating member (12), a positioning member (14) is fixedly connected to the other end of the fixed shaft (13), and a limiting member (15) is provided inside the positioning member (14) for limiting the position of the flexible circuit board before and after bending.

2. The bending corner processing equipment for flexible circuit boards according to claim 1, characterized in that: The top end of the inner side of the positioning member (14) is fixedly connected to an electric telescopic rod (141), the bottom end of the electric telescopic rod (141) is fixedly connected to a positioning block (142), the positioning block (142) is slidably connected to the inner wall of the positioning member (14), a positioning plate (145) is provided at the bottom end of the inner side of the positioning member (14), a positioning groove (146) is provided on a side of the positioning plate (145) away from the positioning member (14), a linkage member is provided inside the positioning groove (146), and the other end of the linkage member is connected to the side of the limiting member (15).

3. The bending corner processing equipment for flexible circuit boards according to claim 2, characterized in that: The limiting member (15) comprises a limiting plate 1 (151) arranged at a middle position on the outer side of the positioning plate (145); the two ends of the limiting plate 1 (151) are connected to the limiting plate 2 (155) through connecting rods (153) symmetrically arranged on the outer side thereof; the limiting plate 2 (155) has a rotating shaft (158) on the side for damping rotation; the middle part of the circumferential outer surface of the rotating shaft (158) is fixedly connected to a support frame (156); the circumferential outer surface of the rotating shaft (158) and the support frame (156) are connected to each other. 56) is symmetrically fixedly connected to a side block (1581) parallel to the side of the side block (1581), the side of the side block (1581) away from the support frame (156) is tightly fitted with the blocking member (159), the other end of the blocking member (159) is elastically connected to the inner wall of the second limiting plate (155), the inner sides of the limiting plates (151) and the second limiting plates (155) are elastically connected to the support plate (152), and the side of the positioning block (142) away from the positioning member (14) is fixedly connected to the flexible plate (157).

4. The bending corner processing equipment for flexible circuit boards according to claim 3, characterized in that: The limiting plate (151) has notches (1511) on both sides, a bottom groove (1512) is formed on one side of the bottom end of the limiting plate (151), and limiting grooves (154) are formed on both sides of the limiting plate (151). A connecting rod (153) is disposed inside the limiting groove (154). The connecting rod (153) is rotatably connected to the inner wall of the limiting groove (154) on one side close to the positioning plate (145), and the connecting rod (153) is away from the positioning plate (145). 5) is slidably connected to the inner wall of the limiting groove (154), the side of the connecting rod (153) away from the positioning plate (145) is rotatably connected to the main shaft (1515), the outer side of the main shaft (1515) is sleeved with a cross plate (1513), the top of the main shaft (1515) is elastically connected to an elastic sheet (1514), and in the initial state, the elastic sheet (1514) is located inside the main shaft (1515) on the side close to the positioning member (14).

5. The bending corner processing equipment for flexible circuit boards according to claim 4, characterized in that: The linkage member comprises a gear shaft (161) rotatably connected to the inner side of the positioning groove (146); the gear shaft (161) passes through the slot one (1511); one end of the gear shaft (161) away from the positioning groove (146) is fixedly connected to a gear (162); the bottom end of the gear (162) passes through the bottom groove (1512); the gear (162) is embedded in the inner side of the limiting plate one (151); an L-shaped rack (163) is symmetrically meshed on the circumferential outer surface of the gear shaft (161); the other end of the L-shaped rack (163) is fixedly connected to a positioning rod (164); the other end of the positioning rod (164) is fixedly connected to the side of the limiting plate two (155).

6. The bending corner processing equipment for flexible circuit boards according to claim 5, characterized in that: Two ends of the second limiting plate (155) are provided with a second notch (1551), and the inner side of the second notch (1551) is slidably connected with a second transverse plate (1552). In an initial state, the second transverse plate (1552) is fitted with the stopper (159), so that the stopper (159) and the side block (1581) are tightly fitted, and the rotating shaft (158) is restricted and cannot rotate. A groove (1553) is provided on the side of the second transverse plate (1552) close to the support frame (156). The top of the second transverse plate (1552) is elastically connected with a second elastic sheet (1554). In an initial state, the second elastic sheet (1554) is fitted with the bottom end of the support plate (152). The middle part of the second transverse plate (1552) is fixedly connected with a second main shaft (1555), and the second main shaft (1555) is rotatably connected to the side of the connecting rod (153) away from the positioning plate (145).

7. The bending corner processing equipment for flexible circuit boards according to claim 1, characterized in that: An annular groove (19) is provided on the surface of the cover plate (11) at a position away from the center of the circle, a tooth plate (17) is fixedly arranged inside the annular groove (19), an oblique groove (18) is provided on the side of the annular groove (19), and the positioning member (14) is located above the annular groove (19).

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