Automatic folding device, automatic folding system and automatic folding method

Abstract

The present invention provides an automatic folding device, an automatic folding system and an automatic folding method. The automatic folding device comprises a shell, a first up-down automatic flipping mechanism arranged on the top surface of the shell, a left-right automatic flipping mechanism arranged on one side of the first up-down automatic flipping mechanism along the flipping axis of the first up-down automatic flipping mechanism, and a second up-down automatic flipping mechanism arranged on the opposite side of the left-right automatic flipping mechanism along the flipping axis of the first up-down automatic flipping mechanism. The automatic folding device, the automatic folding system and the automatic folding method provided by the present invention can realize automatic operation, greatly improving work efficiency and product reliability.

Description

Technical Field

[0001] The present invention relates to an automatic folding device, an automatic folding system and an automatic folding method, and in particular to an automatic folding device, an automatic folding system and an automatic folding method for folding a flexible printed circuit (FPC). Background Art

[0002] With the development of science and technology, there are various demands for the application of flexible circuit boards, especially flexible circuit boards required for use in fields such as signal acquisition. They are usually in the shape of long strips, and the required length is getting longer and longer, for example, a long flexible circuit board of more than 2 meters is needed.

[0003] However, current production lines and equipment are basically not suitable for producing such ultra-long flexible circuit boards. The solution is to produce a folded flexible circuit board and then unfold the folded flexible circuit board to form an ultra-long flexible circuit board.

[0004] In the current method, the foldable flexible circuit board is usually unfolded to form an ultra-long flexible circuit board by manual folding. Since the foldable flexible circuit board needs multiple actions to complete multiple steps, the manual folding method has the problems of high cost, low accuracy, slow response speed, etc. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an automatic folding device, which includes a shell, a first up-down automatic flipping mechanism arranged on the top surface of the shell, a left-right automatic flipping mechanism arranged on one side of the first up-down automatic flipping mechanism along the flipping axis of the first up-down automatic flipping mechanism, and a second up-down automatic flipping mechanism arranged on the opposite side of the left-right automatic flipping mechanism along the flipping axis of the first up-down automatic flipping mechanism.

[0006] Furthermore, the left-right automatic flipping mechanism includes a left-right flipping plate, a first driving component for driving the left-right flipping plate to flip, and a first vacuum suction cup arranged on the left-right flipping plate.

[0007] Furthermore, a first positioning pin which can move up and down is arranged on the left and right flip plates.

[0008] Furthermore, the first driving component includes a servo motor, a reducer connected to the servo motor, and a gear box connected to the reducer for transmitting driving force, and the rotation axis of the left and right flip plates is perpendicular to the rotation axis of the servo motor.

[0009] Furthermore, the first automatic up-and-down flipping mechanism includes an up-and-down flipping plate, a second driving component for driving the up-and-down flipping plate to flip, and a second vacuum suction cup arranged on the up-and-down flipping plate.

[0010] Furthermore, a second positioning pin which can move up and down is arranged on the up and down flip plate.

[0011] Furthermore, the automatic folding device also includes a receiving plate arranged opposite to the up and down flipping plate, and a plurality of third vacuum suction cups are arranged on the receiving plate, wherein at least one third vacuum suction cup is arranged between the flipping axis of the second up and down automatic flipping mechanism and the first up and down automatic flipping mechanism.

[0012] Furthermore, the automatic folding device also includes a loading plate arranged on one side of the receiving plate, and a plurality of fourth vacuum suction cups are arranged on the receiving plate.

[0013] The present invention also provides an automatic folding system, comprising the automatic folding device as above, wherein two automatic folding devices are connected via a common loading plate.

[0014] Furthermore, a protective cover is provided between the two automatic folding devices.

[0015] The present invention also provides an automatic folding method for a flexible circuit board, using the automatic folding device as above, including: a step of folding the main section to be folded of the flexible circuit board 180 degrees in the left-right direction by a left-right automatic flipping mechanism; a step of folding the main section that has been folded left-right 180 degrees up and down by a first up-down automatic flipping mechanism; and a step of folding the connecting part of the main section that has been folded up and down 180 degrees by a second up-down automatic flipping mechanism.

[0016] The present invention also provides an automatic folding method for a flexible circuit board, using the above automatic folding system, including: a step of folding two main sections of the flexible circuit board to be folded 180 degrees in the left-right direction by two left-right automatic flipping mechanisms; a step of folding the two main sections that have been folded left-right 180 degrees up and down by two first up-and-down automatic flipping mechanisms; and a step of folding the connecting part of the two main sections that have been folded up and down 180 degrees by two second up-and-down automatic flipping mechanisms.

[0017] The automatic folding device, the automatic folding system and the automatic folding method provided by the present invention can realize automated operation, thereby greatly improving work efficiency and product reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 is a schematic diagram of a foldable flexible circuit board before unfolding;

[0020] Figure 2 is a schematic diagram of a foldable flexible circuit board after being unfolded for the first time;

[0021] Figure 3 is a schematic diagram of a foldable flexible circuit board after being unfolded for the second time;

[0022] Figure 4 This is the state of the folding terminal before it is folded;

[0023] Figure 5 Display the status of the folding terminal after folding;

[0024] Figure 6 is a top schematic diagram of an automatic folding device according to the present invention;

[0025] Figure 7 It is a three-dimensional schematic diagram of the left and right automatic flipping mechanism of the automatic folding device according to the present invention;

[0026] Figure 8 It is a three-dimensional schematic diagram of the automatic folding device system according to the present invention. DETAILED DESCRIPTION

[0027] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] Now, exemplary embodiments of the present invention are described with reference to the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to disclose the present invention in detail and completely and to fully convey the scope of the present invention to those skilled in the art. The terms used in the exemplary embodiments shown in the accompanying drawings are not intended to limit the present invention. In the accompanying drawings, the same units / elements are marked with the same reference numerals.

[0029] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0030] Unless otherwise specified, the terms used herein, including technical terms, have the commonly understood meanings to those skilled in the art. In addition, it is understood that the terms defined in commonly used dictionaries should be understood to have the same meanings as those in the context of the relevant fields, and should not be understood as idealized or overly formal meanings.

[0031] Figure 1 is a schematic diagram of a foldable flexible circuit board before unfolding; Figure 2 is a schematic diagram of a foldable flexible circuit board after being unfolded for the first time; Figure 3 is a schematic diagram of a foldable flexible circuit board after being unfolded for the second time; Figure 4 This is the state of the folding terminal before it is folded; Figure 5 Displays the state of the folded terminal.

[0032] like Figures 1 to 3 As shown, a flexible circuit board 1 according to the present invention includes a first main body section 11, a first connecting portion 12 connected to one end of the first main body section 11 and perpendicular to the first main body section 11, a second main body section 13 connected to and perpendicular to the first connecting portion 12 at one end, a second connecting portion 14 connected to and perpendicular to the other end of the second main body section 13, a third main body section 15 connected to and perpendicular to the second connecting portion 14 at one end, a non-folding terminal 16 connected to the other end of the first main body section 11, and a foldable folding terminal 17 connected to one side of the non-folding terminal 16; the second main body section 13 extends from the first connecting portion 12 to the other end of the first main body section 11, and the third main body section 15 extends from the second connecting portion 14 to the second main body section. 13 extends from the other end; the first connecting portion 12 includes a first bonding block 121 arranged at the end of one end of the first main segment 11 and bonded to one end of the first main segment 11, a second bonding block 122 arranged at the end of one end of the second main segment 13 and bonded to the first bonding block 121, and a third bonding block 123 arranged at one side of the second bonding block 122; the second connecting portion 14 includes a fourth bonding block 141 arranged at the end of one end of the third main segment 15 and bonded to one end of the third main segment 15, a fifth bonding block 142 arranged at the end of the other end of the second main segment 13 and bonded to the fourth bonding block 141, and a sixth bonding block 143 arranged at one side of the fifth bonding block 142.

[0033] According to the flexible circuit board 1 of the present invention, the unfolding of the flexible circuit board 1 can be made more convenient and quick, and the stability and reliability of the unfolded flexible circuit board 1 are further enhanced. In particular, the provision of the third adhesive block 123 and the sixth adhesive block 143 makes it difficult for the bonding point of the first connecting portion 12 and the second connecting portion 14 to be peeled off after unfolding, and the connection relationship is stable and reliable.

[0034] like Figure 1 and Figure 2 As shown, a long first folding hole 124 is provided on the folding line between the second adhesive block 122 and the third adhesive block 123; a long second folding hole 144 is provided on the folding line between the fifth adhesive block 142 and the sixth adhesive block 143. By providing the first folding hole 124 and the second folding hole 144, the folding of the third adhesive block 123 and the sixth adhesive block 143 can be made easier.

[0035] The unfolding process of the main section of the flexible circuit board 1 includes the following steps.

[0036] Step 1: If Figure 1 As shown, after the first main body section 11 is flipped rightward 180 degrees along the first flipping direction 191 with the boundary line between the first main body section 11 and the first connecting portion 12 as the axis, one end of the first main body section 11 overlaps and is bonded with the first bonding block 121 .

[0037] Step 2: If Figure 1 As shown, the portion of the first connecting portion 12 having the first bonding block 121 is turned downward 180 degrees in the second turning direction 192 with the center line between the first bonding block 121 and the second bonding block 122 as the axis, and one end of the first main body section 11 is bonded together with the second bonding block 122. Thus, the first main body section 11 is basically located on the extension line of the second main body section 13.

[0038] Step 3: If Figure 1 As shown, the portion of the first connection portion 12 having the third adhesive block 123 is turned upward 180 degrees in the third turning direction 193 with the center line between the third adhesive block 123 and the second adhesive block 122 as the axis, and the third adhesive block 123 is bonded to the back surface of the portion of the first connection portion 12 having the first adhesive block 121. As a result, the bonding between the first adhesive block 121 and the second adhesive block 122 is not easily peeled off, and the connection between the first main section 11 and the second main section 13 is more stable.

[0039] Step 4: Figure 2 As shown, after the third main body section 15 is flipped 180 degrees to the left along the fourth flipping direction 194 with the boundary line between the third main body section 15 and the second connecting portion 14 as the axis, one end of the third main body section 15 overlaps and is bonded with the fourth bonding block 141 .

[0040] Step 5: Figure 2As shown, the portion of the second connecting portion 14 having the fourth bonding block 141 is turned upward 180 degrees in the fifth turning direction 195 with the center line between the fourth bonding block 141 and the fifth bonding block 142 as the axis, and one end of the third main body segment 15 is bonded to the fifth bonding block 142. Thus, the third main body segment 15 is basically located on the extension line of the second main body segment 13.

[0041] Step 6: Figure 2 As shown, the portion of the second connection portion 14 having the sixth adhesive block 143 is flipped downward 180 degrees along the sixth flipping direction 196 with the center line between the sixth adhesive block 143 and the fifth adhesive block 142 as the axis, and the sixth adhesive block 143 is bonded to the back surface of the portion of the second connection portion 14 having the fourth adhesive block 141. This makes it difficult to peel off the bond between the fourth adhesive block 141 and the fifth adhesive block 142, and the connection between the third main body segment 15 and the second main body segment 13 is more stable.

[0042] like Figure 4 and Figure 5 As shown, the folding steps of the folding terminal 17 are as follows: the folding terminal 17 is folded toward the non-folding terminal 16 in such a way that the folding terminal 17 is folded downward 180 degrees in the seventh flipping direction 197, so that the folding terminal 17 and the non-folding terminal 16 overlap. This step can be completed before the main body segment is unfolded, or it can be completed after the main body segment is unfolded.

[0043] Through the above steps, the flexible circuit board 1 is unfolded into Figure 3 The extra-long strip-shaped flexible circuit board 1 is shown.

[0044] Figure 6 This is a top schematic diagram of the automatic folding device according to the present invention. Figure 6 As shown, the automatic folding device 2 according to the present invention includes a shell 21, a first up-and-down automatic flipping mechanism 23 arranged on the top surface of the shell 21, a left-and-right automatic flipping mechanism 22 arranged on one side of the first up-and-down automatic flipping mechanism 23 along the flipping axis of the first up-and-down automatic flipping mechanism 23, and a second up-and-down automatic flipping mechanism 24 arranged on the opposite side of the left-and-right automatic flipping mechanism 22 along the flipping axis of the first up-and-down automatic flipping mechanism 23.

[0045] The left-right automatic flipping mechanism 22 can adapt to the structure of the flexible circuit board 1 and be assembled on the left or right side of the first up-down automatic flipping mechanism 23 .

[0046] According to an automatic folding method of a flexible circuit board of the present invention, using the automatic folding device 2 described above, the method comprises:

[0047] The step of folding the main body section of the flexible circuit board to be folded 180 degrees in the left-right direction by means of a left-right automatic flipping mechanism;

[0048] The step of folding the main body section folded leftward and rightward by 180 degrees up and down by a first automatic up and down turning mechanism;

[0049] The step of folding the connecting portion of the main body segment that has been folded up and down 180 degrees by 180 degrees by a second automatic up and down turning mechanism.

[0050] By means of the automatic folding method of the flexible circuit board, the main body section of the foldable flexible circuit board 1 can be automatically unfolded.

[0051] For example, for Figure 1 The automatic folding process of the automatic folding device 2 shown can be completed by the following steps:

[0052] Step 1: Place the first main body section 11 on the left-right automatic flipping mechanism 22, and place the first connecting portion 12 at an appropriate position between the first up-and-down automatic flipping mechanism 23, the left-and-right automatic flipping mechanism 22, and the second up-and-down automatic flipping mechanism 24. After the left-and-right automatic flipping mechanism 22 automatically flips 180 degrees to the left with the boundary line between the first main body section 11 and the first connecting portion 12 as the axis, one end of the first main body section 11 overlaps with and is bonded to the first bonding block 121, and the first main body section 11 is placed on the first up-and-down automatic flipping mechanism 23.

[0053] Step 2: The first automatic up-and-down turning mechanism 23 takes the center line between the first bonding block 121 and the second bonding block 122 as the axis, and after turning upward 180 degrees, one end of the first main body section 11 is bonded to the second bonding block 122. Thus, the first main body section 11 is basically located on the extension line of the second main body section 13.

[0054] Step 3: The second automatic up and down flipping mechanism 24 takes the center line between the third bonding block 123 and the second bonding block 122 as the axis, and after flipping downward 180 degrees, the third bonding block 123 is bonded to the back side of the portion of the first connecting portion 12 having the first bonding block 121 .

[0055] Thus, the deployment operation of the first main body segment 11 can be completed. Then, the above steps 1, 2 and 3 can be repeated to complete the deployment operation of the third main body segment 15.

[0056] The automatic folding device 2 of the present invention can avoid the errors and low efficiency caused by manual folding operation, and facilitates automatic operation.

[0057] Figure 7 It is a three-dimensional schematic diagram of the left and right automatic flipping mechanism of the automatic folding device according to the present invention. Figure 6 and Figure 7As shown, the left-right automatic flipping mechanism 22 includes a left-right flipping plate 223, a first driving member 221 for driving the left-right flipping plate 223 to flip, and a first vacuum suction cup 222 disposed on the left-right flipping plate 223. The first vacuum suction cup 222 can be used to fix the main body segment to be flipped placed on the left-right flipping plate 223. The first vacuum suction cup 222 can keep the main body segment to be flipped adsorbed during the left-right automatic flipping process, and release the main body segment to be flipped after the flipping is completed.

[0058] The left-right flip plate 223 is provided with a first positioning pin 224 that can move up and down. A plurality of first positioning pins 224 can be provided to define the placement position of the main body segment to be flipped. The first positioning pin 224 extends out of the left-right flip plate 223 when positioning is required, and retracts below the surface of the left-right flip plate 223 after positioning is completed.

[0059] The first driving member 221 includes a servo motor 225 , a speed reducer 226 connected to the servo motor 225 , and a gear box 227 connected to the speed reducer 226 for transmitting driving force. The rotation axis of the left-right flip plate 223 is perpendicular to the rotation axis of the servo motor 225 .

[0060] like Figure 6 As shown, the first up-down automatic flipping mechanism 23 includes an up-down flipping plate 233, a second driving member 231 driving the up-down flipping plate 233 to flip, and a second vacuum suction cup 232 disposed on the up-down flipping plate 233. The second vacuum suction cup 232 is used to absorb the main body segment that has been flipped left and right when the left-right automatic flipping mechanism 22 flips and releases the main body segment that has been flipped left and right.

[0061] The second driving member 231 is used to drive the up-and-down flip plate 233 to flip up and down by 180 degrees. The specific structure of the first driving member 221 is not limited in the present invention, and any driving member that can complete a 180-degree flip can be used in the present invention. A second positioning pin 234 that can move up and down is provided on the up-and-down flip plate 233. The second positioning pin 234 is used to position the main body section after the left-right flip is completed. A plurality of second positioning pins 234 can be provided to limit the placement position of the main body section after the left-and-right flip is completed. The second positioning pin 234 extends out of the up-and-down flip plate 233 when positioning is required, and retracts below the surface of the up-and-down flip plate 233 after positioning is completed.

[0062] like Figure 6 As shown, the automatic folding device 2 also includes a receiving plate 25 arranged opposite to the up and down flipping plate 233, and a plurality of third vacuum suction cups 252 are arranged on the receiving plate 25, wherein at least one third vacuum suction cup 252 is arranged between the flipping axis of the second up and down automatic flipping mechanism 24 and the first up and down automatic flipping mechanism 23.

[0063] After the first upside-down automatic flipping mechanism 23 is flipped, the main body section is received by the receiving plate 25 and sucked by the third vacuum suction cup 252. The receiving plate 25 and the upside-down flipping plate 233 are respectively located on both sides of the flipping axis of the first upside-down automatic flipping mechanism 23 and are arranged opposite to each other.

[0064] At least one third vacuum suction cup 252 is disposed between the second up-and-down automatic flipping mechanism 24 and the flipping axis of the first up-and-down automatic flipping mechanism 23, and is used to reliably adsorb the first connection portion 12 or the second connection portion 14 of the flexible circuit board 1. After the main body section after the first up-and-down automatic flipping mechanism 23 is flipped is adsorbed by the third vacuum suction cup 252, the second up-and-down automatic flipping mechanism 24 pushes the third bonding block 123 or the sixth bonding block 143 to flip 180 degrees.

[0065] The specific structure of the second up-and-down automatic flipping mechanism 24 is not specifically limited in the present invention, and any driving component that can push the third bonding block 123 or the sixth bonding block 143 to complete a 180-degree flip can be used in the present invention.

[0066] like Figure 6 As shown, the automatic folding device 2 further includes a loading plate 26 disposed on one side of the receiving plate 25, and a plurality of fourth vacuum suction cups 262 are disposed on the receiving plate 25. The loading plate 26 is used to place the non-folded main section of the flexible circuit board 1, and is fixed by the fourth vacuum suction cups 262.

[0067] Figure 8 2 is a three-dimensional schematic diagram of an automatic folding device system according to the present invention. The automatic folding system according to the present invention comprises two automatic folding devices 2 as above, and the two automatic folding devices 2 are connected by a common loading plate 26. Preferably, the left and right automatic flipping mechanisms 22, the first up-and-down automatic flipping mechanism 23 and the second up-and-down automatic flipping mechanism 24 of the two automatic folding devices 2 are symmetrically distributed about the center point of the loading plate 26.

[0068] According to the automatic folding device system of the present invention, the first main section 11 and the third main section 15 can be simultaneously unfolded. That is, the unfolding operation of the entire flexible circuit board 1 is completed at one time through one system, so the unfolding efficiency of the flexible circuit board 1 can be further improved.

[0069] A protective cover 27 is provided between the two automatic folding devices 2, and the protective cover 27 is preferably an accordion protective cover 27. By providing the protective cover 27, the safety of operation can be ensured.

[0070] According to an automatic folding method of a flexible circuit board of the present invention, using the automatic folding system as described above, the method comprises: folding two main sections of the flexible circuit board to be folded by 180 degrees in the left and right directions by two left and right automatic flipping mechanisms;

[0071] The step of folding the two main body sections that have been folded leftward and rightward 180 degrees up and down by two first automatic up and down turning mechanisms;

[0072] The step of folding the connecting part of the two main body sections that have been folded up and down 180 degrees by 180 degrees through two second up and down automatic flipping mechanisms.

[0073] By using the automatic folding method of the flexible circuit board, two main body sections can be unfolded at the same time, for example, Figure 1 The first main section 11 and the third main section 15 of the flexible circuit board 1 shown can be unfolded at the same time, which further improves the unfolding work efficiency.

[0074] Specifically, if Figure 1 The unfolding operation of the flexible circuit board 1 shown is performed as follows Figure 8 The automatic folding system shown can be completed by the following steps:

[0075] Step 1: The first vacuum suction cup 222 of the left automatic folding device 2, the first vacuum suction cup 222 of the right automatic folding device 2 and the fourth vacuum suction cup 262 are opened, the fourth vacuum suction cup 262 sucks the second main body section 13, the first vacuum suction cup 222 of the left automatic folding device 2 sucks the third main body section 15, and the first vacuum suction cup 222 of the right automatic folding device 2 sucks the first main body section 11;

[0076] Step 2: The first positioning pin 224 moves up and down to achieve accurate positioning of the flexible circuit board 1;

[0077] Step 3: The left-right automatic flipping mechanism 22 of the left automatic folding device 2 and the left-right automatic flipping mechanism 22 of the right automatic folding device 2 flip 180 degrees to achieve the rightward folding of the first main body section 11 and the leftward folding of the third main body section 15;

[0078] Step 4: The first vacuum suction cup 222 of the left automatic folding device 2 and the first vacuum suction cup 222 of the right automatic folding device 2 are closed, and the second vacuum suction cup 232 of the left automatic folding device 2 and the second vacuum suction cup 232 of the right automatic folding device 2 are opened;

[0079] Step 5: The second positioning pin 234 moves up and down to achieve accurate positioning of the flexible circuit board 1;

[0080] Step 6: The first up-down automatic flipping mechanism 23 of the left automatic folding device 2 and the first up-down automatic flipping mechanism 23 of the right automatic folding device 2 flip 180 degrees to achieve the downward folding of the first main body section 11 and the upward folding of the third main body section 15;

[0081] Step 7: The second vacuum suction cup 232 of the left automatic folding device 2 and the second vacuum suction cup 232 of the right automatic folding device 2 are closed, and the third vacuum suction cup 252 of the left automatic folding device 2 and the third vacuum suction cup 252 of the right automatic folding device 2 are opened;

[0082] Step 8: The second up-down automatic flipping mechanism 24 of the left automatic folding device 2 and the second up-down automatic flipping mechanism 24 of the right automatic folding device 2 flip 180 degrees to achieve the upward folding of the third adhesive block 123 and the downward folding of the sixth adhesive block 143.

[0083] Thus, the flexible circuit board 1 can be unfolded at one time. When only one automatic folding device 2 is used, the above steps can also be used, but the above steps need to be performed twice.

[0084] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Any person skilled in the art may modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An automatic folding device for folding a flexible circuit board. It is characterized in that The automatic folding device comprises a housing, a first up-down automatic flipping mechanism arranged on the top surface of the housing, a left-right automatic flipping mechanism arranged on one side of the first up-down automatic flipping mechanism along a flipping axis of the first up-down automatic flipping mechanism, and a second up-down automatic flipping mechanism arranged on the opposite side of the left-right automatic flipping mechanism along the flipping axis of the first up-down automatic flipping mechanism; The flexible circuit board at least includes a first main body section, a first connecting portion connected to one end of the first main body section and perpendicular to the first main body section, and a second main body section at one end connected to the first connecting portion and perpendicular to the first main body section; the second main body section extends from the first connecting portion to the other end of the first main body section; the first connecting portion includes a first bonding block provided at an end of one end of the first main body section and bonded to one end of the first main body section, a second bonding block provided at an end of one end of the second main body section and bonded to the first bonding block, and a third bonding block provided at one side of the second bonding block; By using the left-right automatic flipping mechanism, the first main body section is flipped 180 degrees in the left-right direction with the boundary line between the first main body section and the first connecting portion as the axis; By using the first automatic up-and-down turning mechanism, the first main body section that has been turned left and right is turned up and down by 180 degrees with the center line between the first bonding block and the second bonding block as the axis; The third adhesive block is folded 180 degrees by the second automatic up-and-down turning mechanism with the center line between the third adhesive block and the second adhesive block as the axis.

2. The automatic folding device according to claim 1, It is characterized in that The left-right automatic flipping mechanism comprises a left-right flipping plate, a first driving component for driving the left-right flipping plate to flip, and a first vacuum suction cup arranged on the left-right flipping plate.

3. The automatic folding device as claimed in claim 2, It is characterized in that The left and right flip plates are provided with first positioning pins which can move up and down.

4. The automatic folding device as claimed in claim 2, It is characterized in that The first driving component includes a servo motor, a speed reducer connected to the servo motor, and a gear box connected to the speed reducer for transmitting driving force. The rotation axis of the left and right flip plates is perpendicular to the rotation axis of the servo motor.

5. The automatic folding device according to claim 1, It is characterized in that The first automatic up-and-down turning mechanism comprises an up-and-down turning plate, a second driving member for driving the up-and-down turning plate to turn over, and a second vacuum suction cup arranged on the up-and-down turning plate.

6. The automatic folding device as claimed in claim 5, It is characterized in that A second positioning pin which can move up and down is arranged on the up and down turning plate.

7. The automatic folding device as claimed in claim 6, It is characterized in that The automatic folding device also includes a receiving plate arranged opposite to the up and down flipping plate, on which a plurality of third vacuum suction cups are arranged, wherein at least one third vacuum suction cup is arranged between the flipping axes of the second up and down automatic flipping mechanism and the first up and down automatic flipping mechanism.

8. The automatic folding device as claimed in claim 7, It is characterized in that The automatic folding device also includes a loading plate arranged on one side of the receiving plate, and a plurality of fourth vacuum suction cups are arranged on the receiving plate.

9. An automatic folding system, It is characterized in that The invention comprises two automatic folding devices according to any one of claims 1 to 8, wherein the two automatic folding devices are connected via a common loading plate.

10. An automatic folding system as claimed in claim 9, It is characterized in that A protective cover is arranged between the two automatic folding devices.

11. An automatic folding method for a flexible circuit board, It is characterized in that Use of the automatic folding device according to any one of claims 1 to 8, comprising: The step of folding the first main body section 180 degrees in the left-right direction by using a left-right automatic flipping mechanism with the boundary line between the first main body section and the first connecting portion as an axis; The step of folding the first main body section folded leftward and rightward by 180 degrees up and down with the center line between the first bonding block and the second bonding block as the axis by a first up and down automatic flipping mechanism; The step of folding the third adhesive block 180 degrees by a second automatic up and down turning mechanism with the center line between the third adhesive block and the second adhesive block as the axis.

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