Bending and cutting mechanism for automobile FFC (Flexible Flat Cable) material strap and forming device of automobile FFC material strap

Abstract

The utility model discloses a bending and cutting mechanism for an automobile FFC material belt and a forming device of the bending and cutting mechanism, and aims to overcome the defects that an existing folding machine is complex in structure, low in efficiency and large in occupied space. The bending and cutting device comprises a rotating structure, a pressing structure, a bending structure, a cutting structure and a bending and cutting frame, the bending structure and the cutting structure are arranged on the two sides of the bending and cutting frame respectively, the bending structure comprises two bending frames and a bending air cylinder in transmission connection with the bending frames, the two bending frames move oppositely, a material belt is bent through staggering of the two bending frames, and therefore the bending and cutting efficiency of the material belt is improved. The cutting structure comprises a cutter and a cutting air cylinder in transmission connection with the cutter, the rotating structure comprises a rotating motor, the pressing structure comprises a pressing air cylinder and a pressing block driven by the pressing air cylinder, the rotating motor is in transmission connection with the bending cutting frame and drives the bending cutting frame to rotate, and the pressing air cylinder drives the pressing block to press the material belt. Bending is achieved in a simple movement mode, efficiency is improved, occupied space is reduced, and benefits are improved.

Description

Technical Field

[0001] The utility model relates to the field of material strip processing, and more specifically, to a bending and cutting mechanism and a forming device thereof for automobile FFC material strips. Background Art

[0002] FFC (Flexible Flat Cable) is a new type of data cable made of PET insulation material and extremely thin conductors (usually tinned flat copper wire) pressed together through an automated equipment production line. Multiple FFC cables can be combined together to form an FFC harness. When using an FFC harness, part of the PET insulation material is usually stripped off at one end of its branch leg (that is, the end of the FFC cable), and a conductive sheet (such as an aluminum connecting sheet) is welded to the conductor by ultrasonic welding, and electrically connected to the electronic components through the conductive sheet.

[0003] In some scenarios, FFC strips used in automobiles need to be folded to connect two electronic components at an angle. Existing strip bending mechanisms have complex structural designs for the folding portion of the device, making the folding process time-consuming and requiring a large amount of space. Summary of the Invention

[0004] The utility model overcomes the shortcomings of the existing folding mechanical structure, which is complex, inefficient and occupies a lot of space, and provides a bending and cutting mechanism and a forming device for automobile FFC material strips, which can achieve bending in a simple motion form, improve efficiency, reduce space occupation and improve benefits.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A bending and cutting mechanism for automotive FFC material strips comprises a rotating structure, a pressing structure, a bending structure, a cutting structure and a bending and cutting frame. The bending structure and the cutting structure are respectively arranged on both sides of the bending and cutting frame, and the pressing structure is arranged between the bending structure and the cutting structure. The bending structure comprises two bending frames slidingly connected to the bending and cutting frames and a bending cylinder transmission-connected to the bending frames. The two bending frames are driven by the bending cylinders to move toward each other, and the material strip is bent by interlacing the two bending frames. The cutting structure comprises a cutter and a cutting cylinder transmission-connected to the cutter. The rotating structure comprises a rotating motor. The pressing structure comprises a pressing cylinder and a pressing block driven by the pressing cylinder. The rotating motor transmission-connected to the bending and cutting frames and drives the bending and cutting frames to rotate. The pressing cylinder drives the pressing block to press the material strip.

[0007] The structure is used to bend and cut the material strip. The bending is performed along an oblique line. Cutting is performed by cutting the continuous material strip into separate products. Specifically, the bending is performed by folding the material strip 180 degrees around the oblique edge.

[0008] The structure makes the bending and cutting mechanism and the material strip tilted by rotating the motor. The pressing cylinder and the pressing block press the material strip to limit one end of the material strip.

[0009] The bending structure realizes the bending of the material strip by forcing the material strip to enter between the two bending frames during the approach process through the movement of the two bending frames.

[0010] The bent material strip is then separated from the continuous material strip by the work of the cutter and the cutting cylinder.

[0011] The bending and cutting of the material strip is achieved through the mechanism.

[0012] Preferably, the bending frame includes a first bending frame and a second bending frame, wherein guide edges are provided at adjacent ends of the first bending frame and the second bending frame, with the two guide edges inclined in opposite directions. The first bending frame and the second bending frame move toward each other to bend the material strip. The guide edges can guide the material strip in the corresponding direction while contacting the material strip, thereby reducing damage to the material strip caused by impact between the first bending frame and the second bending frame during feeding.

[0013] Preferably, the bending frame is provided with two guide rods along the feeding direction of the bending frame, and the bending and cutting frame is provided with two guide grooves corresponding to the guide rods, and the guide grooves are provided along the feeding direction of the bending frame. The guide rods and the guide grooves cooperate to guide the bending frame.

[0014] Preferably, the end of the guide slot adjacent to the other bending frame is inclined, and the guide slot guides the bending frame to deflect at the limit of its travel to flatten the material strip. When the bending frame reaches the end of its travel, it folds inward about the guide rod at the front end, thereby flattening the bent material strip. The corresponding crease is generated when the elastic deformation limit is reached, and plastic deformation is generated to prevent the material strip from returning to its original position after it is released from the bending and cutting mechanism.

[0015] Preferably, there are four clamping cylinders and four clamping blocks. The clamping cylinders are positioned opposite each other on either side of the bending and cutting frame in the width direction. The synchronized movement of the clamping cylinders drives the clamping blocks toward or away from each other. The synchronized movement of the clamping cylinders, moving them toward or away from each other, compresses or releases the web.

[0016] The automotive FFC material strip bending and cutting equipment includes a feeding and clamping mechanism, a guide wheel system, a tape feeding mechanism and the bending and cutting mechanism as described above. The feeding and clamping mechanism includes a tape disc and a clamping structure. The tape disc and the clamping structure are fixedly arranged, and the clamping structure is slidably arranged in the length direction of the equipment. The guide wheel system guides the tape to the tape feeding mechanism, and the tape feeding mechanism drives the tape feeding.

[0017] This device provides a fully automatic bending and cutting device except for loading. The material belt disc rotates to release the material belt, and the clamping structure is driven by the cylinder to close the clamping claw to clamp one end of the material belt and pull the material belt out from the bending and cutting mechanism.

[0018] The guide wheel system is used to guide the material belt so that the material belt is always released from the material belt reel tangentially and parallel to the preset feed port position of the belt feeding mechanism, reducing the resultant force generated in the process of pulling the material belt, thereby reducing the damage or breakage of the material belt.

[0019] The tape feeding mechanism provides the driving force for the movement of the tape in the guide wheel system after the tape reel is released, and cooperates with the tape reel that actively releases the tape. The two can move independently through the buffering of the guide wheel system, and there is no need to force high-precision synchronization between the two.

[0020] Preferably, the belt feeding mechanism includes a belt guide block group with adjustable width, a pressure roller and a driving roller. The belt guide block group includes two belt guide blocks. The opposite surfaces of the belt guide blocks are provided with guide grooves for passing the belt. The two belt guide blocks approach or move away from each other through a screw-slider pair. The pressure roller approaches or moves away from the driving roller through a pressure cylinder. The driving roller is driven to rotate by a driving motor.

[0021] The width of the material strip guide block group is adjustable to adapt to material strips of different widths. The downward pressing roller generates friction by pressing downward, and the motor generates torque to rotate the downward pressing roller to drive the material strip to feed.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] (1) Bending is performed by staggered bending frames, which makes the arrangement of the motion mechanism simpler and takes up less space;

[0024] (2) The guide wheel system buffer between the tape reel and the tape feeding mechanism enables the tape reel and the tape feeding mechanism to drive the tape independently and in a limited manner, reducing the requirements for component linkage debugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an assembly diagram of the utility model;

[0026] Figure 2 It is a schematic diagram of the tape feeding mechanism of the present utility model;

[0027] Figure 3 It is an axonometric view of the bending and cutting mechanism of the present invention from one perspective;

[0028] Figure 4 This is an axonometric drawing of the bending and cutting mechanism of the present invention from another perspective;

[0029] In the picture:

[0030] Bending and cutting frame 1, rotating motor 2, pressing cylinder 3, pressing block 4, first bending frame 5, second bending frame 6, guide edge 7, guide rod 8, guide groove 9, material tape reel 10, clamping claw 11, slide rail 12, linear motor 13, material release motor 14, laser sensor 15, material tape guide block 16, guide groove 17, pressing roller 18, driving roller 19, pressing cylinder 20, driving motor 21, guide wheel system 22, bending cylinder 23, cutter 24, cutting cylinder 25. DETAILED DESCRIPTION

[0031] The present disclosure will be further described below with reference to the accompanying drawings and embodiments.

[0032] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are merely relational words determined for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure, and should not be understood as limitations on the present disclosure.

[0035] In this disclosure, terms such as "fixed connection," "connected," and "connection" should be interpreted broadly to mean a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediary. Relevant researchers or technicians in this field may determine the specific meaning of these terms in this disclosure based on specific circumstances, and they should not be construed as limiting this disclosure.

[0036] Example:

[0037] Ginseng Figure 3 、 4 As shown, a bending and cutting mechanism for automotive FFC strips includes a rotating structure, a pressing structure, a bending structure, a cutting structure and a bending and cutting frame 1.

[0038] The bending and cutting frame 1 is a frame, and its rotating structure includes a rotary motor 2, which in some embodiments is a stepper motor. The rotary motor 2 drives the bending and cutting frame 1 to rotate. The bending and cutting frame 1 is hollow in the middle, and a clamping structure is mounted between two plates. The clamping structure includes a clamping cylinder 3 and a clamping block 4 driven by the clamping cylinder 3. There are four clamping cylinders 3 and four clamping blocks 4, each of which is arranged opposite each other along the width of the bending and cutting frame 1. The synchronous movement of each clamping cylinder 3 drives the clamping blocks 4 to move closer or further away. The clamping cylinders 3 move synchronously, moving closer or further away from each other, thereby compressing or loosening the material strip.

[0039] The bending structure and the cutting structure are respectively arranged on both sides of the bending and cutting frame 1. The bending structure includes two bending frames slidingly connected to the bending and cutting frame 1 and a bending cylinder 23 transmission-connected to the bending frame. The two bending frames are driven by the bending cylinder 23 to move toward each other. The material strip is bent by the interlacing of the two bending frames. The cutting structure includes a cutter 24 and a cutting cylinder 25 transmission-connected to the cutter 24.

[0040] The bending frame includes a first bending frame 5 and a second bending frame 6. Guide edges 7 are provided at adjacent ends of the first bending frame 5 and the second bending frame 6. The two guide edges 7 are inclined in opposite directions. The first bending frame 5 and the second bending frame 6 move toward each other to bend the material strip. The guide edges 7 can guide the material strip in the corresponding direction while contacting the material strip, thereby reducing damage caused by the first and second bending frames during feeding.

[0041] Along the feeding direction of the bending frame, the bending frame is provided with two guide rods 8, and the bending and cutting frame is provided with two guide grooves 9 corresponding to the guide rods 8. The guide grooves 9 are arranged along the feeding direction of the bending frame. The cooperation of the guide rods 8 and the guide grooves 9 guides the bending frame.

[0042] The end of the guide slot 9 near the other bending frame is inclined, with the direction of inclination being the other side of the bending and cutting frame 1. The guide slot 9 guides the bending frame to deflect at the limit of its travel to flatten the material strip. When the bending frame reaches the end of its travel, it folds inward about the guide rod 8 at the front end, thereby flattening the bent material strip. The corresponding crease is generated when the elastic deformation limit is reached, and plastic deformation is generated to prevent it from returning to its original position after leaving the bending and cutting mechanism.

[0043] This structure is used to bend and cut the material strip. The bending occurs along a diagonal line with a specific angle of 45 degrees. The rotating structure drives the bending and cutting frame 1 to rotate 45 degrees. Cutting is the process of cutting the continuous material strip into separate products. Specifically, bending involves folding the material strip 180 degrees around the diagonal edge.

[0044] The structure makes the bending and cutting mechanism tilted with the material strip by rotating the motor 2. The pressing cylinder 3 and the pressing block 4 press the material strip to limit one end of the material strip.

[0045] The bending structure realizes the bending of the material strip by forcing the material strip to enter between the two bending frames during the approach process through the movement of the two bending frames.

[0046] The bent material strip is then separated from the continuous material strip by the work of the cutter 24 and the cutting cylinder 25.

[0047] The bending and cutting of the material strip is achieved through the mechanism.

[0048] Ginseng Figure 1 As shown, the automotive FFC material strip bending and cutting equipment includes a feeding and clamping mechanism, a guide wheel system 22, a tape feeding mechanism and the bending and cutting mechanism as described above, the feeding and clamping mechanism includes a tape disc 10 and a clamping structure, the tape disc 10 and the clamping structure are fixedly arranged, the clamping structure is slidably arranged in the length direction of the equipment, the clamping structure includes a clamping claw 11 driven by a cylinder, the guide wheel system 22 guides the material strip to the tape feeding mechanism, and the tape feeding mechanism drives the material strip to feed.

[0049] This device provides a fully automatic bending and cutting device except for loading. The material tape disk 10 rotates to release the material tape, and the clamping structure is driven by the cylinder to approach the clamping claw 11 to clamp one end of the material tape and pull the material tape out of the bending and cutting mechanism.

[0050] The guide wheel system 22 is used to guide the material belt so that the material belt is always released tangentially from the material belt reel 10 and is parallel to the preset feed port position of the belt feeding mechanism, thereby reducing the resultant force generated during the pulling of the material belt, thereby reducing the damage and breaking of the material belt.

[0051] The feeding and clamping mechanisms are driven by linear motors 13 to move on corresponding slide rails 12 .

[0052] The tape feed mechanism provides the driving force for the tape reel 10 to move within the guide pulley system 22 after it is released. This mechanism works in conjunction with the tape reel 10, which actively releases the tape. The two mechanisms, cushioned by the guide pulley system 22, can move independently, eliminating the need for high-precision synchronization. The tape reel 10 is connected to the corresponding release motor 14, which rotates and releases the tape.

[0053] Ginseng Figure 2As shown, the tape feeding mechanism includes a tape guide block group with adjustable width, a downward pressure roller 18 and a driving roller 19. The tape guide block group includes two tape guide blocks 16. The opposite surfaces of the tape guide blocks 16 are provided with guide grooves 17 for passing the tape. The two tape guide blocks 16 approach or move away from each other through a screw-slider pair, and the downward pressure roller 18 approaches or moves away from the driving roller 19 through a downward pressure cylinder 20. The driving roller 19 is driven to rotate by a driving motor 21.

[0054] The width of the material strip guide block group is adjustable to adapt to material strips of different widths. The downward pressing roller 18 generates friction by pressing downward, and the torque of the downward pressing roller 18 is generated by the motor to drive the material strip to feed.

[0055] In some embodiments, a laser sensor 15 is provided on the bending and cutting frame 1 at the entrance of the material strip to detect the presence of the material strip.

[0056] When loading, the material strip is manually pulled out from the material strip disk 10, connected to the guide wheel system 22 and sent to the tape feeding mechanism. After the pressing cylinder 20 works to press the material strip, the automatic mode can be turned on.

[0057] The working cycle of the device is as follows:

[0058] The feeding and clamping mechanism is close to the bending and cutting mechanism, wherein the clamping structure clamps one end of the material strip;

[0059] Rotating motor 2 rotates 45 degrees, and clamping cylinder 3 controls clamping block 4 to compress the strip. First and second bending frames 5 and 6 extend to bend the strip, then return to their original positions. Clamping cylinder 3 returns to its original position, releasing the strip. Rotating motor 2 returns to its original position, and drive motor 21 drives the strip a short distance before clamping cylinder 3 extends again to clamp the strip. Cutting cylinder 25 extends, slicing the strip with cutter 24. Clamping cylinder 3 returns to its original position, releasing the strip. The clamping mechanism shifts along slide rail 12, pulling the bent strip out for manual or robotic material collection.

[0060] The above process is repeated until the tape in the tape reel 10 is used up.

[0061] The above-described embodiments are only preferred solutions of the present invention and do not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A bending and cutting mechanism for automotive FFC strips, characterized in that: It includes a rotating structure, a pressing structure, a bending structure, a cutting structure and a bending and cutting frame. The bending structure and the cutting structure are respectively arranged on both sides of the bending and cutting frame, and the pressing structure is arranged between the bending structure and the cutting structure. The bending structure includes two bending frames slidingly connected to the bending and cutting frame and a bending cylinder transmission connected to the bending frame. The two bending frames are driven by the bending cylinder to move toward each other, and the material strip is bent by the interlacing of the two bending frames. The cutting structure includes a cutter and a cutting cylinder transmission connected to the cutter. The rotating structure includes a rotating motor. The pressing structure includes a pressing cylinder and a pressing block driven by the pressing cylinder. The rotating motor is transmission-connected to the bending and cutting frame and drives the bending and cutting frame to rotate. The pressing cylinder drives the pressing block to press the material strip.

2. A bending and cutting mechanism for automotive FFC strips according to claim 1, characterized in that: The bending frame includes a first bending frame and a second bending frame. The adjacent ends of the first bending frame and the second bending frame are provided with guide edges, and the inclined directions of the two guide edges are opposite to each other. The first bending frame and the second bending frame move toward each other to bend the material strip.

3. The bending and cutting mechanism for automotive FFC strips according to claim 2, characterized in that: Along the feeding direction of the bending frame, the bending frame is provided with two guide rods, and the bending and cutting frame is provided with two guide grooves corresponding to the guide rods, and the guide grooves are arranged along the feeding direction of the bending frame.

4. A bending and cutting mechanism for automotive FFC strips according to claim 3, characterized in that: The end of the guide groove close to the other bending frame is inclined, and the guide groove guides the bending frame to deflect at a stroke limit position to flatten the material strip.

5. The bending and cutting mechanism for automotive FFC strips according to claim 1, characterized in that: There are four pressing cylinders and four pressing blocks. The pressing cylinders are arranged on both sides of the bending and cutting frame in the width direction and are arranged opposite to each other. The pressing blocks are driven to move closer or farther away through the synchronous movement of each pressing cylinder.

6. The bending and cutting mechanism for automotive FFC strips according to claim 1, characterized in that: The rotation angle of the rotating motor is 45 degrees.

7. A strip forming device, characterized in that: It includes a feeding and clamping mechanism, a guide wheel system, a belt feeding mechanism and a bending and cutting mechanism as described in any one of claims 1 to 6, wherein the feeding and clamping mechanism includes a material belt disk and a clamping structure, the material belt disk and the clamping structure are fixedly arranged, and the clamping structure is slidingly arranged in the length direction of the equipment, the guide wheel system guides the material belt to the belt feeding mechanism, and the belt feeding mechanism drives the material belt to feed.

8. The strip forming device according to claim 7, characterized in that: The belt feeding mechanism includes a belt guide block group with adjustable width, a downward pressure roller and a driving roller. The belt guide block group includes two belt guide blocks. The opposite surfaces of the belt guide blocks are provided with guide grooves for passing the belt. The two belt guide blocks approach or move away from each other through a screw-slider pair. The downward pressure roller approaches or moves away from the driving roller through a downward pressure cylinder. The driving roller is driven to rotate by a driving motor.

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