Novel double-face circle bending mechanism and double-face circle bending machine

Abstract

The invention relates to the technical field of machining machinery, in particular to a novel double-face circle bending mechanism and a double-face circle bending machine.The novel double-face circle bending mechanism comprises a bottom plate, two first supporting plates are fixedly connected to the top face of the bottom plate, the two first supporting plates are arranged in parallel at a certain interval, and cam plates are fixedly connected to the ends, away from the bottom plate, of the first supporting plates; an arc bending device is arranged on the cam plate, a first transmission device, an arc bending supporting device and a second transmission device are arranged between the bottom plate and the cam plate, and a driving device is arranged below the bottom plate; through reasonable design, bidirectional arc bending of a material is achieved on one device, a guide device is removed, the motor is fixedly installed on the bottom plate, and the situation that vibration generated in the working process of the arc bending device influences the transmission precision is avoided; and through reasonable design of the first transmission device, the bent arc supporting device and the second transmission device, the equipment runs stably, and the bending precision of the material is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of processing machinery, and more specifically to a new double-sided round bending mechanism and a double-sided round bending machine. Background Art

[0002] With the progress and development of human society, profiles with certain strength and shape are used in more and more fields and places. In order to make profiles and other materials meet different usage and installation requirements, they need to be made into other products with certain geometric shapes and sizes through bending, rolling and other methods. Such products can be used in different scenes such as decoration or construction to meet different social needs. The round bending machine is a device that bends or rolls profiles into other products.

[0003] The invention patent with application number 202210887963.2 discloses a double-sided round bending mechanism and a double-sided round bending machine. The double-sided round bending mechanism includes a bottom plate. Two first support plates are fixedly connected to the top surface of the bottom plate. A cam plate is fixedly connected to one end of the first support plate away from the bottom plate. An arc bending device is arranged on the cam plate. A guide device is arranged at a position between the two first support plates on the bottom plate. A driving device for driving the arc bending device to move is installed on the guide device. A first cam groove and a second cam groove are opened in the cam plate. The first cam groove and the second cam groove are both in the shape of a large semicircular ring. A first semicircular hole is provided at one end of a cam groove, and the center of the first semicircular hole coincides with the center of the second cam groove; a second semicircular hole is provided at one end of the second cam groove, and the center of the second semicircular hole coincides with the center of the first cam groove; through rational design, the invention realizes two-way bending of materials on one device, solves the problem that traditional bending machines can only bend materials on one side, thereby greatly enriching the diversity of processed products, and can process mountain-shaped, heart-shaped, plum blossom-shaped, cloud-shaped and other picture frames, mirror frames, etc. that require two-way bending, meet customer needs and improve work efficiency.

[0004] The motor of this invention moves along with the arc bending device during the operation of the equipment. Although the guide device supports and guides the motor during its movement, the vibration generated by the arc bending device during operation will affect the transmission accuracy, which is not conducive to the high-precision bending of the material. How to achieve bidirectional bending of the material through a reasonable design of the supporting structure and the transmission structure while the motor is fixed is a problem that needs to be solved. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a new double-sided bending mechanism with reasonable structure and high operating accuracy in view of the deficiencies of the above technical solutions.

[0006] In order to solve the above technical problems, the technical solution of the present invention is:

[0007] A new double-sided round bending mechanism, comprising:

[0008] The bottom plate is used to support other parts and devices of the mechanism;

[0009] A cam plate, the cam plate is fixedly connected to the upper part of the bottom plate through two first support plates;

[0010] A first cam groove and a second cam groove are provided in the cam plate, both of which are arc-shaped, a first semicircular hole is provided at one end of the first cam groove, the center of the first semicircular hole coincides with the center of the second cam groove, and a second semicircular hole is provided at one end of the second cam groove, the center of the second semicircular hole coincides with the center of the first cam groove;

[0011] The arc bending device is used to bend the material. The arc bending device includes:

[0012] First bending arc axis;

[0013] A second bending arc axis, the second bending arc axis is arranged parallel to the first bending arc axis;

[0014] A first arc bending roller, the first arc bending roller is rotatably connected to the first arc bending shaft;

[0015] A second arc bending roller, the second arc bending roller is rotatably connected to the second arc bending shaft;

[0016] An arc bending connecting plate, the arc bending connecting plate is located above the first arc bending roller and the second arc bending roller, and is fixedly connected to the first arc bending shaft and the second arc bending shaft;

[0017] A first connecting plate, the first connecting plate is located below the first arc bending roller and the second arc bending roller, and is fixedly connected to the first arc bending shaft and the second arc bending shaft;

[0018] Two rollers, the two rollers are rotatably connected to the first bending arc shaft and the second bending arc shaft respectively, and the two rollers are respectively located in the first cam groove and the second cam groove corresponding thereto;

[0019] A driving device, which is fixedly connected to the base plate and is used to provide power to the mechanism;

[0020] A first transmission device, the first transmission device is located between the base plate and the cam plate, and is fixedly connected to the base plate, and is coaxially arranged with the first bending arc axis, and is transmission-connected to the driving device;

[0021] The arc bending support device is located between the bottom plate and the cam plate, and the first arc bending shaft and the second arc bending shaft both pass through the cam plate and are fixedly connected to the arc bending support device;

[0022] The bending support device plays a supporting role in the process that the first bending shaft drives the first bending roller to rotate around the axis of the second bending shaft and in the process that the second bending shaft drives the second bending roller to rotate around the axis of the first bending shaft;

[0023] A second transmission device, the second transmission device is located between the bottom plate and the cam plate and is in transmission connection with the first transmission device, and the second curved shaft passes through the second transmission device and is in transmission connection with the second transmission device;

[0024] The second transmission device is used to transmit the power of the first transmission device to the second bending shaft, and when the second bending shaft drives the second bending roller to rotate around the axis of the first bending shaft, the second bending shaft rotates together with the second bending shaft around the axis of the first bending shaft.

[0025] The following are further improvements to the above technical solution:

[0026] The first transmission device includes a support frame, which is fixedly connected to the base plate. A transmission shaft is rotatably connected inside the support frame. The transmission shaft is coaxially arranged with the first curved axis. A first transmission gear is fixedly connected to the transmission shaft. The lower end of the transmission shaft is transmission-connected to the driving device.

[0027] The following are further improvements to the above technical solution:

[0028] A support block is rotatably connected to the transmission shaft at the lower end of the first transmission gear, and is used to limit the position of the first transmission gear in the axial direction of the transmission shaft.

[0029] The following are further improvements to the above technical solution:

[0030] The arc bending support device includes a support shaft, which is rotatably connected to the base plate and coaxially arranged with the second arc bending shaft. The upper end of the support shaft is fixedly connected to a first swing arm, the other end of the first swing arm is fixedly connected to a support plate, the end of the support plate close to the cam plate is fixedly connected to a second connecting plate, the second connecting plate is rotatably connected to the first arc bending shaft, a third connecting plate is fixedly connected to the first arc bending shaft at a position below the second connecting plate, and the other end of the third connecting plate is fixedly connected to the second arc bending shaft.

[0031] The following are further improvements to the above technical solution:

[0032] An avoidance groove is provided on the first swing arm;

[0033] When the first curved shaft moves to a position close to the second semicircular hole, the avoidance groove effectively avoids the transmission shaft.

[0034] The following are further improvements to the above technical solution:

[0035] The second transmission device includes a second transmission gear, which is fixedly connected to the second curved shaft. The first support seat and the second support seat are respectively provided on the upper and lower sides of the second transmission gear. The first support seat and the second support seat are both rotatably connected to the second curved shaft. An intermediate wheel is rotatably connected between the first support seat and the second support seat, and the intermediate wheel is meshedly connected to the first transmission gear and the second transmission gear.

[0036] The following are further improvements to the above technical solution:

[0037] A second swing arm is rotatably connected to the second curved shaft at a position above the first support seat, the first support seat is fixedly connected to the second swing arm, and the other end of the second swing arm is rotatably connected to the transmission shaft.

[0038] The following are further improvements to the above technical solution:

[0039] A third swing arm is rotatably connected to the second curved axis at a position below the second support seat, the second support seat is fixedly connected to the third swing arm, and the other end of the third swing arm is rotatably connected to the transmission shaft.

[0040] The following are further improvements to the above technical solution:

[0041] The driving device includes a motor bracket, which is fixedly connected to the bottom of the base plate. A motor and a reducer are installed on the motor bracket. The output end of the motor is transmission-connected to the input end of the reducer, and the output end of the reducer is transmission-connected to the transmission shaft through a coupling.

[0042] The present invention also provides a double-sided round bending machine, comprising the new double-sided round bending mechanism described above.

[0043] The present invention realizes bidirectional bending of materials on one device through rational design, and solves the problem that traditional round bending machines can only perform single-sided bending of materials, thereby greatly enriching the diversity of processed products, meeting customer needs, and improving work efficiency; and the present invention removes the guide device, and the motor is fixedly installed on the bottom plate, which avoids the vibration generated by the bending device during operation affecting the transmission accuracy; and through the rational design of the first transmission device, the bending support device and the second transmission device, the equipment runs stably and the bending accuracy of the material is improved.

[0044] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic diagram of the overall structure of a new double-sided bending mechanism according to an embodiment of the present invention;

[0046] Figure 2 It is a schematic structural diagram of an arc bending device in a new double-sided round bending mechanism according to an embodiment of the present invention;

[0047] Figure 3 It is a structural schematic diagram of a cam plate in a new double-sided bending mechanism according to an embodiment of the present invention;

[0048] Figure 4 It is a schematic cross-sectional structure diagram of a new double-sided round bending mechanism according to an embodiment of the present invention;

[0049] Figure 5 It is a schematic diagram of the structure of the first transmission device and the second transmission device in the new double-sided bending mechanism according to an embodiment of the present invention;

[0050] Figure 6 It is a schematic structural diagram of the first swing arm in the new double-sided bending mechanism according to an embodiment of the present invention;

[0051] Figure 7 It is a schematic diagram of the overall structure of a double-sided round bending machine according to an embodiment of the present invention.

[0052] In the figure: 1, bottom plate; 2, first support plate; 3, cam plate; 301, first cam groove; 3011, first semicircular hole; 302, second cam groove; 3021, second semicircular hole; 303, guide frame; 4, arc bending device; 401, first arc bending shaft; 402, second arc bending shaft; 403, first arc bending roller; 404, second arc bending roller; 405, arc bending connecting plate; 406, first connecting plate; 407, roller; 407, roller; 408, adjustment sleeve; 5, first transmission device; 501, support frame; 502, transmission shaft; 503, first transmission gear; 504, support Support block; 6. Arc support device; 601. Support shaft; 602. First swing arm; 6021. Avoidance groove; 603. Support plate; 604. Second connecting plate; 605. Third connecting plate; 7. Second transmission device; 701. Second transmission gear; 702. First support seat; 703. Second support seat; 704. Intermediate wheel; 705. Second swing arm; 706. Third swing arm; 8. Driving device; 801. Motor bracket; 802. Motor; 803. Reducer; 804. Coupling; 9. Induction device; 901. Induction sheet; 902. Photoelectric switch; 10. Feeding mechanism. DETAILED DESCRIPTION

[0053] like Figure 1-6 As shown, a new double-sided bending mechanism comprises a base plate 1, the top surface of the base plate 1 is fixedly connected to two first support plates 2, the two first support plates 2 are arranged in parallel with a certain distance, one end of the first support plate 2 away from the base plate 1 is fixedly connected to a cam plate 3, an arc bending device 4 is arranged on the cam plate 3, a first transmission device 5, an arc bending support device 6 and a second transmission device 7 are arranged between the base plate 1 and the cam plate 3, and a driving device 8 is arranged below the base plate 1.

[0054] The arc bending support device 6 and the second transmission device 7 play a supporting role when the arc bending device 4 is in motion. The first transmission device 5 and the second transmission device 7 are used to transmit the power of the driving device 8 to the arc bending device 4.

[0055] A first cam groove 301 and a second cam groove 302 are provided in the cam plate 3. The first cam groove 301 and the second cam groove 302 are both arc-shaped. A first semicircular hole 3011 is provided at one end of the first cam groove 301. The center of the first semicircular hole 3011 coincides with the center of the second cam groove 302. A second semicircular hole 3021 is provided at one end of the second cam groove 302. The center of the second semicircular hole 3021 coincides with the center of the first cam groove 301.

[0056] The first cam groove 301 and the second cam groove 302 are arranged symmetrically.

[0057] The arc bending device 4 includes a first arc bending shaft 401 and a second arc bending shaft 402 which are arranged in parallel at a certain distance. The first arc bending shaft 401 is rotatably connected to a first arc bending roller 403, and the second arc bending shaft 402 is rotatably connected to a second arc bending roller 404. The first arc bending shaft 401 and the second arc bending shaft 402 are located above the first arc bending roller 403 and the second arc bending roller 404, and are fixedly connected to a first connecting plate 406 at a position below the first arc bending roller 403 and the second arc bending roller 404.

[0058] With this design, the two bending shafts are connected by a pair of connecting plates, thereby greatly improving the stability and rotation accuracy of the bending shafts during operation.

[0059] The first arc bending shaft 401 and the second arc bending shaft 402 are both rotatably connected with rollers 407, and the two rollers 407 are respectively located in the corresponding first cam groove 301 and the second cam groove 302, and are slidably connected thereto, so that the first arc bending shaft 401 drives the first arc bending roller 403 to move along the trajectory of the first cam groove 301, and the second arc bending shaft 402 drives the second arc bending roller 404 to move along the trajectory of the second cam groove 302.

[0060] With this design, during the rotation of the bending shaft, the cam groove and the roller 407 are used to assist in limiting the bending shaft, thereby further improving the stability and rotation accuracy of the bending shaft during operation. When the bending shaft is subjected to a large force, the structure is not easily deformed to cause material bending errors.

[0061] The roller 407 preferably uses a roller needle bearing.

[0062] The first bending shaft 401 and the second bending shaft 402 are both fixedly connected with adjustment sleeves 408 at the lower ends of the first bending roller 403 and the second bending roller 404. The two adjustment sleeves 408 are respectively used to limit the axial positions of the first bending roller 403 and the second bending roller 404 on the first bending shaft 401 and the second bending shaft 402.

[0063] The lower end of the first bending shaft 401 extends to the lower end of the cam plate 3 and is fixedly connected to the bending support device 6 .

[0064] The lower end of the second bending arc shaft 402 extends to the lower end of the cam plate 3 , and is fixedly connected to the bending arc supporting device 6 , and is rotationally connected to the second transmission device 7 .

[0065] The first transmission device 5 includes a support frame 501, which is fixedly connected to the base plate 1. A transmission shaft 502 is rotatably connected inside the support frame 501. The transmission shaft 502 is coaxially arranged with the first curved axis 401. A first transmission gear 503 is fixedly connected to the transmission shaft 502. The lower end of the transmission shaft 502 is transmission-connected to the driving device 8.

[0066] The cross section of the support frame 501 is an “L”-shaped structure.

[0067] In this embodiment, the support frame 501 includes a horizontal support plate and a vertical support plate, the horizontal support plate and the vertical support plate are arranged vertically, the transmission shaft 502 is arranged vertically and rotatably connected to the horizontal support plate, one end of the vertical support plate is fixedly connected to the base plate 1, and the other end is fixedly connected to the horizontal support plate.

[0068] In addition to this embodiment, the horizontal support plate and the vertical support plate may also be an integrated structure.

[0069] The transmission shaft 502 is rotatably connected to a support block 504 at a position located at the lower end of the first transmission gear 503 , and is used to limit the position of the first transmission gear 503 in the axial direction of the transmission shaft 502 .

[0070] The arc support device 6 includes a support shaft 601 , which is rotatably connected to the base plate 1 and is coaxially arranged with the second arc shaft 402 .

[0071] The upper end of the support shaft 601 is fixedly connected to the first swing arm 602, the other end of the first swing arm 602 is fixedly connected to the support plate 603, the end of the support plate 603 close to the cam plate 3 is fixedly connected to the second connecting plate 604, the second connecting plate 604 is rotatably connected to the first bending arc shaft 401, and a third connecting plate 605 is fixedly connected to the first bending arc shaft 401 at a position below the second connecting plate 604, and the other end of the third connecting plate 605 is fixedly connected to the second bending arc shaft 402.

[0072] In this design, the support shaft 601 is coaxially arranged with the second bending shaft 402, and the first swing arm 602, the support plate 603, the second connecting plate 604 and the third connecting plate 605 jointly form an effective support for the first bending shaft 401, thereby ensuring that the first bending shaft 401 can drive the first bending roller 403 to stably operate around the axis of the second bending shaft 402 along the trajectory of the second cam groove 302.

[0073] The first swing arm 602 is provided with an avoidance groove 6021 , which ensures that when the first curved shaft 401 moves to a position close to the second semicircular hole 3021 , the avoidance groove 6021 effectively avoids the transmission shaft 502 .

[0074] The second transmission device 7 includes a second transmission gear 701, which is fixedly connected to the second curved shaft 402. The first support seat 702 and the second support seat 703 are respectively provided on the upper and lower sides of the second transmission gear 701. The first support seat 702 and the second support seat 703 are both rotatably connected to the second curved shaft 402.

[0075] An intermediate wheel 704 is rotatably connected between the first support seat 702 and the second support seat 703 . The intermediate wheel 704 is meshedly connected with the first transmission gear 503 and the second transmission gear 701 , so as to facilitate the transmission of power on the transmission shaft 502 to the second curved shaft 402 .

[0076] The use of gears to transmit power greatly improves the transmission accuracy.

[0077] A second swing arm 705 is rotatably connected to the second curved shaft 402 at a position above the first support seat 702 . The first support seat 702 is fixedly connected to the second swing arm 705 . The other end of the second swing arm 705 is rotatably connected to the transmission shaft 502 .

[0078] A third swing arm 706 is rotatably connected to the second curved shaft 402 at a position below the second support seat 703 . The second support seat 703 is fixedly connected to the third swing arm 706 . The other end of the third swing arm 706 is rotatably connected to the transmission shaft 502 .

[0079] With this design, since the transmission shaft 502 is coaxially arranged with the first bending shaft 401, and the second swing arm 705 and the third swing arm 706 form effective support for the second bending shaft 402, it is convenient for the second bending shaft 402 to drive the second bending roller 404, the second transmission gear 701 and the intermediate gear 704 to run stably around the axis of the first bending shaft 402 along the trajectory of the first cam groove 301.

[0080] The driving device 8 includes a motor bracket 801, which is fixedly connected to the bottom of the base plate 1. A motor 802 and a reducer 803 are installed on the motor bracket 801. The output end of the motor 802 is transmission-connected to the input end of the reducer 803, and the output end of the reducer 803 is transmission-connected to the transmission shaft 502 through a coupling 804.

[0081] The reducer 803 is a planetary reducer, and the motor 802 is a servo motor.

[0082] In addition to this embodiment, the motor 802 can also be installed on the base plate 1, and transmit power to the transmission shaft 502 through other transmission methods such as gear transmission, chain transmission, belt transmission, etc.

[0083] A sensing device 9 is provided between the arc bending support device 6 and the base plate 1 , and is used to determine the zero point position of the arc bending device 4 through the arc bending support device 6 .

[0084] The sensing device 9 includes a sensing sheet 901 , which is fixed to one end of the first swing arm 602 away from the second bending axis 402 . A photoelectric switch 902 is installed on the bottom plate 1 , and the sensing sheet 901 and the photoelectric switch 902 are arranged correspondingly.

[0085] Working principle:

[0086] It is set that when the two rollers 407 are located in the second semicircular hole 3021 and the first semicircular hole 3011 respectively, it is the zero point position of the first arc bending roller 403 and the second arc bending roller 404.

[0087] When the motor 802 drives the transmission shaft 502 to rotate counterclockwise, the transmission shaft 502 drives the second curved shaft 402 to rotate counterclockwise through the first transmission gear 503 , the intermediate gear 704 and the second transmission gear 701 .

[0088] At this time, the roller 407 in the first cam groove 301 is located in the first semicircular hole 3011 and is limited by it, and the second bending shaft 402 drives the first bending shaft 401 to rotate counterclockwise around the second bending shaft 402 along the trajectory of the second cam groove 302 through the bending connecting plate 405. At the same time, the first bending roller 403 rotates around the second bending roller 404 to realize the bending of the material.

[0089] The roller 407 located in the second cam groove 302 plays a guiding role during the movement of the first bending shaft 401. The first swing arm 602, the support plate 603, the second connecting plate 604 and the third connecting plate 605 rotate around the axis of the second bending shaft 402 and the support shaft 601, and jointly form an effective support for the first bending shaft 401, making the bending process of the material more stable.

[0090] After the material is bent, the motor 802 rotates in the reverse direction, and the first bending roller 403 rotates clockwise and returns to the zero position.

[0091] When the motor 802 drives the transmission shaft 502 to rotate clockwise, the transmission shaft 502 drives the second curved shaft 402 to rotate clockwise through the first transmission gear 503 , the intermediate gear 704 and the second transmission gear 701 .

[0092] The second bending shaft 402 rotates, and drives the first bending shaft 401 to rotate clockwise around the second bending shaft 402 through the bending connecting plate 405. Since the roller 407 located in the second cam groove 302 is located in the second semicircular hole 3021 at this time and is limited by the second semicircular hole 3021, the first bending shaft 401 cannot rotate clockwise around the second bending shaft 402. Driven by the reaction force, the second bending shaft 402 rotates around the first bending shaft 401 along the trajectory of the first cam groove 301. At the same time, the second bending roller 404 rotates around the first bending roller 403 to achieve reverse bending of the material.

[0093] While the first transmission gear 503 drives the second transmission gear 701 and the second curved shaft 402 to rotate clockwise around the axis of the second curved shaft 402 , the second transmission gear 701 , the intermediate gear 704 and the second curved shaft 402 also rotate clockwise around the common axis of the first curved shaft 401 and the transmission shaft 502 .

[0094] After the reverse bending of the material is completed, the motor 802 rotates in the reverse direction, and the second bending roller 404 rotates counterclockwise and returns to the zero position.

[0095] like Figure 7 As shown, a double-sided round bending machine includes the above-mentioned new double-sided round bending mechanism. A feeding mechanism 10 is arranged on the bottom plate 1 at a position on one side of the new double-sided round bending mechanism. The feeding mechanism 10 is used to transport the material to the arc bending device 4, so as to facilitate the arc bending device 4 to perform forward and reverse bidirectional arc bending on the material.

[0096] The above description is only a preferred embodiment of the present invention. Any slight modification, equivalent changes and modifications made to the above embodiments according to the technical solution of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A new double-sided bending mechanism, characterized in that: include: A bottom plate (1) is used to support other components and devices of the mechanism; A cam plate (3), wherein the cam plate (3) is fixedly connected to the top of the bottom plate (1) via two first support plates (2); The cam plate (3) is provided with a first cam groove (301) and a second cam groove (302), the first cam groove (301) and the second cam groove (302) are both arc-shaped, a first semicircular hole (3011) is provided at one end of the first cam groove (301), the center of the first semicircular hole (3011) coincides with the center of the second cam groove (302), and a second semicircular hole (3021) is provided at one end of the second cam groove (302), the center of the second semicircular hole (3021) coincides with the center of the first cam groove (301); The arc bending device (4) is used for bending a material, and the arc bending device (4) comprises: A first bending arc axis (401); A second bending arc axis (402), wherein the second bending arc axis (402) is arranged in parallel with the first bending arc axis (401); A first arc bending roller (403), the first arc bending roller (403) is rotatably connected to the first arc bending shaft (401); A second arc bending roller (404), the second arc bending roller (404) is rotatably connected to the second arc bending shaft (402); An arc bending connection plate (405), the arc bending connection plate (405) is located above the first arc bending roller (403) and the second arc bending roller (404), and is fixedly connected to the first arc bending shaft (401) and the second arc bending shaft (402); A first connecting plate (406), the first connecting plate (406) being located below the first bending roller (403) and the second bending roller (404), and being fixedly connected to the first bending shaft (401) and the second bending shaft (402); Two rollers (407), the two rollers (407) being rotatably connected to the first bending arc shaft (401) and the second bending arc shaft (402) respectively, and the two rollers (407) are respectively located in the first cam groove (301) and the second cam groove (302) corresponding thereto; A driving device (8), the driving device (8) being fixedly connected to the base plate (1) and used for providing power to the mechanism; A first transmission device (5), the first transmission device (5) is located between the base plate (1) and the cam plate (3), is fixedly connected to the base plate (1), is coaxially arranged with the first bending axis (401), and is transmission-connected to the driving device (8); An arc-bending support device (6), the arc-bending support device (6) being located between the base plate (1) and the cam plate (3), the first arc-bending axis (401) and the second arc-bending axis (402) both passing through the cam plate (3) and being fixedly connected to the arc-bending support device (6); The arc bending support device (6) plays a supporting role in the process in which the first arc bending shaft (401) drives the first arc bending roller (403) to rotate around the axis of the second arc bending shaft (402) and in the process in which the second arc bending shaft (402) drives the second arc bending roller (404) to rotate around the axis of the first arc bending shaft (401); a second transmission device (7), the second transmission device (7) being located between the base plate (1) and the cam plate (3) and being in transmission connection with the first transmission device (5), the second curved shaft (402) passing through the second transmission device (7) and being in transmission connection with the second transmission device (7); The second transmission device (7) is used to transmit the power of the first transmission device (5) to the second bending shaft (402), and when the second bending shaft (402) drives the second bending roller (404) to rotate around the axis of the first bending shaft (401), the second bending shaft (402) rotates together with the second bending shaft (402) around the axis of the first bending shaft (401).

2. A new double-sided rounding mechanism according to claim 1, characterized in that: The first transmission device (5) comprises a support frame (501), the support frame (501) is fixedly connected to the base plate (1), a transmission shaft (502) is rotatably connected inside the support frame (501), the transmission shaft (502) is coaxially arranged with the first curved shaft (401), a first transmission gear (503) is fixedly connected to the transmission shaft (502), and the lower end of the transmission shaft (502) is transmission-connected to the driving device (8).

3. A new double-sided round bending mechanism according to claim 2, characterized in that: The transmission shaft (502) is rotatably connected to a support block (504) at a position located at the lower end of the first transmission gear (503), and is used to limit the axial position of the first transmission gear (503) on the transmission shaft (502).

4. A new double-sided round bending mechanism according to claim 3, characterized in that: The arc support device (6) comprises a support shaft (601), the support shaft (601) is rotatably connected to the base plate (1) and is coaxially arranged with the second arc shaft (402), the upper end of the support shaft (601) is fixedly connected to a first swing arm (602), the other end of the first swing arm (602) is fixedly connected to a support plate (603), one end of the support plate (603) close to the cam plate (3) is fixedly connected to a second connecting plate (604), the second connecting plate (604) is rotatably connected to the first arc shaft (401), a third connecting plate (605) is fixedly connected to a position on the first arc shaft (401) below the second connecting plate (604), the other end of the third connecting plate (605) is fixedly connected to the second arc shaft (402).

5. A new double-sided round bending mechanism according to claim 4, characterized in that: The first swing arm (602) is provided with an avoidance groove (6021); When the first curved shaft (401) moves to a position close to the second semicircular hole (3021), the avoidance groove (6021) effectively avoids the transmission shaft (502).

6. A new double-sided round bending mechanism according to claim 5, characterized in that: The second transmission device (7) comprises a second transmission gear (701), the second transmission gear (701) is fixedly connected to the second curved shaft (402), a first support seat (702) and a second support seat (703) are respectively arranged on the upper and lower sides of the second transmission gear (701), the first support seat (702) and the second support seat (703) are both rotatably connected to the second curved shaft (402), an intermediate wheel (704) is rotatably connected between the first support seat (702) and the second support seat (703), and the intermediate wheel (704) is meshedly connected to the first transmission gear (503) and the second transmission gear (701).

7. A new double-sided round bending mechanism according to claim 6, characterized in that: A second swing arm (705) is rotatably connected to the second curved shaft (402) at a position above the first support seat (702); the first support seat (702) is fixedly connected to the second swing arm (705); and the other end of the second swing arm (705) is rotatably connected to the transmission shaft (502).

8. A new double-sided round bending mechanism according to claim 7, characterized in that: A third swing arm (706) is rotatably connected to the second curved shaft (402) at a position below the second support seat (703); the second support seat (703) is fixedly connected to the third swing arm (706); and the other end of the third swing arm (706) is rotatably connected to the transmission shaft (502).

9. A new double-sided round bending mechanism according to claim 2, characterized in that: The driving device (8) comprises a motor bracket (801), wherein the motor bracket (801) is fixedly connected below the base plate (1), and a motor (802) and a reducer (803) are mounted on the motor bracket (801); the output end of the motor (802) is transmission-connected to the input end of the reducer (803), and the output end of the reducer (803) is transmission-connected to the transmission shaft (502) via a coupling (804).

10. A double-sided round bending machine, characterized in that: Including the new double-sided bending mechanism described in any one of claims 1-9.

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