Heating sheet bending device
By designing a heating element bending device, the collaborative operation of the feeding, bending, and resetting mechanisms solves the problems of low forming efficiency and difficulty in controlling the size of ultra-thin metal heating elements, achieving efficient and precise bending forming and reducing labor costs.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHENZHEN HUACHENGDA PRECISION INDUSTRY CO LTD
- Filing Date
- 2025-10-16
- Publication Date
- 2026-05-21
Smart Images
Figure CN2025128220_21052026_PF_FP_ABST
Abstract
Description
Heating element bending device Technical Field
[0001] This invention relates to the field of heating element processing, and in particular to a heating element bending device. Background Technology
[0002] Small metal heating elements are generally made of metal materials with a certain resistance. They are processed to form a heating circuit, then bent into a specific shape. Heat is generated through the resistive heating effect. They are widely used in electronic products due to their wide applicability, reliable performance, customizability, readily available raw materials, and safe and reliable low-voltage DC power supply. However, some ultra-thin metal heating elements are easily deformed due to the poor strength of the sheet material. Furthermore, their small size and precise dimensional requirements make manual or simple jig production inefficient and difficult to control. Therefore, automated bending equipment is needed to complete the bending and forming of heating elements, achieving advantages such as precise dimensional accuracy, high bending efficiency, and low labor costs. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to provide a heating element bending device in view of the above-mentioned defects in the related technology.
[0004] The technical solution adopted by the present invention to solve its technical problem includes: providing a heating element bending device, including a frame and a feeding mechanism, a bending mechanism, a guiding mechanism and a resetting mechanism disposed on the frame. The frame is provided with a bending area for bending the heating element. The guiding mechanism is disposed between the feeding mechanism and the bending area. The guiding mechanism includes a guiding base and a first guiding groove disposed on the guiding base. One end of the first guiding groove faces the feeding mechanism and the other end faces the bending area. The feeding mechanism is used to drive the heating element through the first guiding groove and into the bending area.
[0005] The bending mechanism includes a rotating base, a bending rod disposed on the rotating base, and a rotary motion module for driving the rotating base and the bending rod to rotate. The bending rod is offset from the rotation axis of the rotary motion module, and the rotary motion module drives the bending rod to rotate, so that the bending rod bends the heating element.
[0006] The reset mechanism drives the bending bar to leave and enter the bending area. When the bending bar leaves the bending area, the rotation motion module drives the bending bar to rotate in the opposite direction to reset.
[0007] Preferably, the direction in which the feeding mechanism drives the heating element to move is perpendicular to the rotation axis of the rotary motion module; and / or, the direction in which the feeding mechanism drives the heating element to move is perpendicular to the direction in which the reset mechanism drives the bending bar to move; and / or, the bending bar is parallel to the rotation axis of the rotary motion module.
[0008] Preferably, the first guide groove is a fixed groove or a groove that can be clamped and released.
[0009] Preferably, the guiding mechanism includes a bending clamp disposed on the guiding base. The bending clamp includes a first guiding portion and a second guiding portion arranged side by side. A second guiding groove is formed between the first guiding portion and the second guiding portion for the heating element to pass through and clamp the heating element. One end of the second guiding groove corresponds to the end of the first guiding groove from which the heating element protrudes. The other end of the second guiding groove is disposed in the bending area. The first guiding portion and / or the second guiding portion forms a bending portion at the other end of the second guiding groove. The rotary motion module drives the bending rod to rotate. The bending rod abuts against the heating element and moves closer to the bending portion. The bending rod and the bending portion abut against opposite sides of the heating element, bending the heating element.
[0010] Preferably, the surface of the bending rod and / or the bending portion that contacts the heating element is parallel to the rotation axis of the rotary motion module.
[0011] Preferably, when the bending bar is located in the bending area, the radial distance between the bending part and the rotation axis of the rotating motion module is less than the radial distance between the bending part and the rotation axis of the rotating motion module.
[0012] Preferably, the feeding mechanism includes a clamping module for clamping the heating element and a linear motion module for driving the clamping module to move linearly toward the first guide groove.
[0013] Preferably, the guiding mechanism and the bending zone are located on one side of the guiding base, and the bending rod is located on the other side of the guiding base. The guiding base is provided with a through hole, and the bending rod passes through the through hole to enter the bending zone. The reset mechanism drives the bending rod to leave and enter the bending zone through the through hole.
[0014] Preferably, the reset mechanism is a lifting mechanism connected to the bending mechanism, the lifting mechanism being used to drive the bending mechanism to rise and the bending bar to enter the bending area, and to drive the bending mechanism to fall and the bending bar to leave the bending area; or the lifting mechanism being used to drive the bending mechanism to fall and the bending bar to enter the bending area, and to drive the bending mechanism to rise and the bending bar to leave the bending area.
[0015] Preferably, the bending mechanism includes a limiting member disposed on the rotating base and a signal sensing module disposed on the frame for sensing the position of the limiting member. The limiting member is driven to rotate by the rotating motion module, moving closer to or away from the signal sensing module. The feeding mechanism drives the heating element according to the signal from the signal sensing module, and the rotating motion module drives the bending rod to rotate according to the signal from the signal sensing module.
[0016] Preferably, the rotary motion module drives the bending rod to rotate no more than one revolution.
[0017] The technical solution of the present invention has at least the following beneficial effects: the heating element bending device can complete the bending and forming of the heating element. For ultra-thin or ultra-fine metal heating elements, it can also achieve the advantages of accurate bending and forming dimensions, high bending and forming efficiency, controllable bending and forming dimensions, and low labor costs. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 is a front view of a heating element bending device according to an embodiment of the present invention (the arrows indicate the feeding direction of the feeding mechanism).
[0020] Figure 2 is another front view of the heating element bending device in Figure 1.
[0021] Figure 3 is a magnified view of part A in Figure 2.
[0022] Figure 4 is a top view of the heating element bending device in Figure 1.
[0023] Figure 5 is a magnified view of part B in Figure 4 (the arrow indicates the direction of rotation of the bending rod).
[0024] Figure 6 is a top view of the heating element bending device in Figure 1 with the guide mechanism omitted.
[0025] Figure 7 is a magnified view of part C in Figure 6.
[0026] Figure 8 is a perspective view of the guide mechanism of the heating element bending device in Figure 4.
[0027] Figure 9 is a magnified view of part D in Figure 8.
[0028] Figure 10 is a three-dimensional view of the heating element before bending.
[0029] Figure 11 is a three-dimensional view of the bent heating element.
[0030] The labels in the diagram represent: frame 1, bending zone 11, feeding mechanism 2, linear motion module 21, clamping module 22, bending mechanism 3, bending bar 31, rotating base 32, rotating motion module 33, guiding mechanism 4, guiding base 41, through hole 410, first guide groove 42, bending chuck 43, first guide part 431, second guide part 432, bending part 4321, second guide groove 433, reset mechanism 5, limiting member 6, signal sensing module 7, heating element 8. Detailed Implementation
[0031] To provide a clearer understanding of the technical features, objectives, and effects of this invention, specific embodiments are now described in detail with reference to the accompanying drawings. It should be understood that the use of terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, and refers to construction and operation in a specific orientation. This is merely for the purpose of describing the technical solution and does not indicate that the device or element referred to must have a specific orientation; therefore, it should not be construed as a limitation of the invention. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "install," "connect," "join," "fix," and "set" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. When an element is referred to as being "on" or "below" another element, the element can be located "directly" or "indirectly" on the other element, or there may be one or more intermediary elements. If the terms "first," "second," "third," etc., appear in the text, they are merely for the convenience of describing the technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.
[0032] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.
[0033] Referring to Figures 1-9, a heating element bending device according to one embodiment of the present invention includes a frame 1 and a feeding mechanism 2, a bending mechanism 3, a guiding mechanism 4, and a resetting mechanism 5 disposed on the frame 1. The frame 1 is provided with a bending area 11 for bending the heating element 8, and the heating element 8 is bent in the bending area 11. The guiding mechanism 4 is disposed between the feeding mechanism 2 and the bending area 11. The guiding mechanism 4 includes a guiding base 41 and a first guiding groove 42 disposed on the guiding base 41. One end of the first guiding groove 42 faces the feeding mechanism 2, and the other end faces the bending area 11. The feeding mechanism 2 is used to drive the heating element 8 through the first guiding groove 42 and into the bending area 11. The first guiding groove 42 is used to prevent the heating element 8 from deviating and to prevent the heating element 8 from deforming during the bending process, thus ensuring the bending shape.
[0034] The bending mechanism 3 includes a rotating base 32, a bending rod 31 disposed on the rotating base 32, and a rotating motion module 33 for driving the rotating base 32 and the bending rod 31 to rotate. The rotating base 32 may be plate-shaped or rod-shaped. The rotating shaft connecting the bending rod 31 and the rotating motion module 33 is offset from the rotation axis of the rotating motion module 33, that is, the axis of the bending rod 31 and the axis of the rotating motion module 33 are not concentric. The rotating motion module 33 drives the bending rod 31 to rotate, and the bending rod 31 bends the heating element 8.
[0035] The reset mechanism 5 drives the bending rod 31 to leave and enter the bending area 11. When the bending rod 31 leaves the bending area 11, since the movement of the bending rod 31 will not affect the heating element 8, the rotation motion module 33 can drive the bending rod 31 to rotate in the opposite direction to reset.
[0036] When the heating element bending device is working, the feeding mechanism 2 drives the heating element 8 through the first guide groove 42 and into the bending area 11, at which point the feeding mechanism 2 stops. The rotary motion module 33 drives the bending rod 31 to rotate, and the bending rod 31 contacts the heating element 8, pressing against and bending the heating element 8, at which point the rotary motion module 33 stops. Then, the reset mechanism 5 drives the bending mechanism 3 to move, causing the bending rod 31 to leave the bending area 11 and the part of the heating element 8 that was just bent. Since the movement of the bending rod 31 at this time does not affect the heating element 8, the rotary motion module 33 drives the bending plate to rotate in the opposite direction to reset. The unbent part of the heating element 8 is driven through the first guide groove 42 and into the bending area 11. The reset mechanism 5 drives the bending mechanism 3 again, causing the bending rod 31 to re-enter the bending area 11. This process is repeated to continuously bend the heating element 8. The rotational trajectory of the bending rod 31 is shown by the arrow in Figure 5.
[0037] This heating element bending device can be used for the automated bending of the heating element 8. Referring to Figure 10, the heating element 8 is initially a flat, sheet-like structure with a certain resistance. After bending (see Figure 11), the heating element 8 allows heat to concentrate, thus achieving a three-dimensional heating space for more concentrated heat.
[0038] This heating element bending device can complete the bending and forming of the heating element 8. For ultra-thin or ultra-fine metal heating elements 8, it can also achieve the advantages of precise bending and forming dimensions, high bending and forming efficiency, controllable bending and forming dimensions, and low labor costs.
[0039] Preferably, the rotary motion module 33 is a motor or electric motor, etc.
[0040] Referring to Figures 1-5, preferably, the direction in which the feeding mechanism 2 drives the heating element 8 to move is perpendicular to the rotation axis of the rotary motion module 33; and / or, the direction in which the feeding mechanism 2 drives the heating element 8 to move is perpendicular to the direction in which the reset mechanism 5 drives the bending rod 31 to move; and / or, the bending rod 31 is parallel to the rotation axis of the rotary motion module 33. More preferably, the embodiment in Figures 1-9 simultaneously possesses the aforementioned three positional relationships, that is, the direction in which the feeding mechanism 2 drives the heating element 8 to move is perpendicular to the rotation axis of the rotary motion module 33, the direction in which the feeding mechanism 2 drives the heating element 8 to move is perpendicular to the direction in which the reset mechanism 5 drives the bending rod 31 to move, and the bending rod 31 is parallel to the rotation axis of the rotary motion module 33.
[0041] Referring to Figure 8, the first guide groove 42 is a fixed groove with a small gap between the first guide groove and the heating element 8, or the first guide groove is a groove that can be clamped and released. When bending, the heating element 8 is clamped and when feeding, the heating element 8 is released, so that there is a gap between the heating element 8 and the first guide groove.
[0042] In some embodiments, referring to Figures 4-5 and 8-9, the guiding mechanism 4 includes a bending clamp 43 disposed on the guiding base 41. The bending clamp 43 includes a first guiding portion 431 and a second guiding portion 432 arranged side by side. A second guiding groove 433 is formed between the first guiding portion 431 and the second guiding portion 432 to allow the heating element 8 to pass through and clamp the heating element 8. One end of the second guiding groove 433 corresponds to the end of the heating element 8 that comes out of the first guiding groove 42, so that the heating element 8 enters the second guiding groove 433 after passing through the first guiding groove 42. The other end of the second guiding groove 433 is disposed in the bending area 11. The first guiding portion 431 and / or the second guiding portion 432 form a bending portion 4321 at the other end of the second guiding groove 433. The rotational motion module 33 drives the bending rod 31 to rotate. The bending rod 31 abuts against the heating element 8 and moves closer to the bending portion 4321. The bending rod 31 and the bending portion 4321 abut against opposite sides of the heating element 8, bending the heating element 8. When the heating element bending device is working, the feeding mechanism 2 drives the heating element 8 through the first guide groove 42, through the second guide groove 433 and into the bending area 11, and the feeding mechanism 2 stops; the reset mechanism 5 drives the bending rod 31 into the bending area 11, and the rotational motion module 33 drives the bending rod 31 to rotate. The bending rod 31 contacts the heating element 8 and pushes the heating element 8 towards the bending part 4321. The heating element 8 is bent under the pressure of the bending rod 31 and the bending part 4321, and the rotational motion module 33 stops. Preferably, the first guide portion 431 and the second guide portion 432 protrude from the frame 1 and are in the shape of bosses. When the bending rod 31 abuts against the heating element 8 and approaches the bending portion 4321, the heating element 8 is abutted by the bending portion 4321, that is, by the side wall of the bending portion 4321. The bending rod 31 and the bending portion 4321 abut against opposite sides of the heating element 8, and the heating element 8 is bent under the combined action of the bending rod 31 and the bending portion 4321. In some other embodiments, the guide mechanism 4 may not include the bending clamp 43, and the heating element 8 may be bent by relying on the first guide groove 42 and the bending rod 31.
[0043] Referring to Figures 5, 8 and 9, preferably, the surfaces of the bending rod 31 and / or the bending portion 4321 that contact the heating element 8 are parallel to the rotation axis of the rotating motion module 33.
[0044] Referring to Figure 5, preferably, when the bending rod 31 is located in the bending area 11, the radial distance between the bending part 4321 and the rotation axis of the rotating motion module 33 is less than the radial distance between the bending part 4321 and the rotation axis of the rotating motion module 33. Therefore, when the bending rod 31 and the bending part 4321 bend the heating element 8, the bending direction of the heating element 8 at the bending part 4321 and the bending part 4321 is opposite, thus being bent into an S shape. Referring to Figures 1-4, further, the feeding mechanism 2 includes a clamping module 22 for clamping the heating element 8 and a linear motion module 21 for driving the clamping module 22 to move linearly towards the first guide groove 42. The arrow in Figure 1 shows the feeding direction of the feeding mechanism 2. After the clamping module 22 clamps the heating element 8, the linear motion module 21 drives the clamping module 22 and the heating element 8 to move linearly through the first guide groove 42. Preferably, the clamping module 22 is a finger cylinder, also known as a pneumatic finger, used to clamp the heating element 8; the linear motion module 21 is a cylinder or motor that drives the clamping module 22 to move linearly.
[0045] Referring to Figure 9, the guide mechanism 4 and the bending area 11 are located on one side of the guide base 41, and the bending rod 31 is located on the other side of the guide base 41. The guide base 41 is provided with a through hole 410. The bending rod 31 passes through the through hole 410 to enter the bending area 11, that is, it extends to the side of the guide base 41 where the guide mechanism 4 is located. The reset mechanism 5 drives the bending rod 31 to leave and enter the bending area 11 through the through hole 410.
[0046] Preferably, the reset mechanism 5 is connected to and drives the bending mechanism 3, driving the entire bending mechanism 3 along with the bending rod 31 to move. The reset mechanism 5 is a lifting mechanism connected to the bending mechanism 3. In this embodiment, referring to Figure 1, the lifting mechanism is used to drive the bending mechanism 3 to rise and the bending rod 31 to enter the bending area 11, and to drive the bending mechanism 3 to fall and the bending rod 31 to leave the bending area 11. In other words, when the feeding mechanism 2 drives the heating element 8 to feed material and the bending rod 31 is resetting, the bending mechanism 3 is in a lowered state; or conversely, in some embodiments, the lifting mechanism is used to drive the bending mechanism 3 to fall and the bending rod 31 to enter the bending area 11, and to drive the bending mechanism 3 to rise and the bending rod 31 to leave the bending area 11. In other words, when the feeding mechanism 2 drives the heating element 8 to feed material and the bending rod 31 is resetting, the bending mechanism 3 is in a raised state. The lifting mechanism can be a cylinder or a motor.
[0047] Referring to Figures 2, 6, and 7, the bending mechanism 3 further includes a limiting member 6 mounted on the rotating base 32 and a signal sensing module 7 mounted on the frame 1 for sensing the position of the limiting member 6. The limiting member 6 is driven to rotate by the rotational motion module 33, moving closer to or further away from the signal sensing module 7. The feeding mechanism 2 drives the heating element 8 according to the signal from the signal sensing module 7, and the rotational motion module 33 drives the bending rod 31 to rotate according to the signal from the signal sensing module 7. Preferably, the limiting member 6 can limit the rotation of the rotational motion module 33 to a certain angle, and adjusting this angle can adjust the bending angle of the heating element 8. The signal sensing module 7 can sense the position of the limiting member 6 and send a signal to the reset mechanism 5 to drive the bending mechanism 3 to move. The signal sensing module 7 is preferably a distance sensor.
[0048] Referring to Figure 5, the arrows in the figure indicate the rotation direction of the bending rod 31. Preferably, the rotation motion module 33 can drive the bending rod 31 to rotate clockwise and counterclockwise, and the rotation does not exceed one revolution.
[0049] In summary, this heating element bending device can automatically bend and form the heating element 8. For ultra-thin or ultra-fine metal heating elements 8, it can also achieve advantages such as precise bending dimensions, high bending efficiency, controllable bending dimensions, and low labor costs.
[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications, combinations, and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.
Claims
1. A heat sheet bending apparatus, characterized by comprising: The device includes a frame (1) and a feeding mechanism (2), a bending mechanism (3), a guiding mechanism (4) and a resetting mechanism (5) provided on the frame (1). The frame (1) is provided with a bending area (11) for bending the heating element. The guiding mechanism (4) is provided between the feeding mechanism (2) and the bending area (11). The guiding mechanism (4) includes a guiding base (41) and a first guiding groove (42) provided on the guiding base (41). One end of the first guiding groove (42) faces the feeding mechanism (2) and the other end faces the bending area (11). The feeding mechanism (2) is used to drive the heating element (8) through the first guiding groove (42) and into the bending area (11). The bending mechanism (3) includes a rotating base (32), a bending rod (31) disposed on the rotating base (32), and a rotating motion module (33) for driving the rotating base (32) and the bending rod (31) to rotate. The bending rod (31) is offset from the rotation axis of the rotating motion module (33), and the rotating motion module (33) drives the bending rod (31) to rotate. The bending rod (31) bends the heating element (8). The reset mechanism (5) drives the bending rod (31) to leave and enter the bending area (11). When the bending rod (31) leaves the bending area (11), the rotation motion module (33) drives the bending rod (31) to rotate in the opposite direction to reset.
2. The heating sheet bending apparatus according to claim 1, wherein The direction in which the feeding mechanism (2) drives the heating element (8) to move is perpendicular to the rotation axis of the rotary motion module (33); and / or, the direction in which the feeding mechanism (2) drives the heating element (8) to move is perpendicular to the direction in which the reset mechanism (5) drives the bending rod (31) to move; and / or, the bending rod (31) is parallel to the rotation axis of the rotary motion module (33).
3. The heating sheet bending apparatus according to claim 1, wherein The first guide groove (42) is a fixed groove or a groove that can be clamped and released.
4. The heating sheet bending apparatus according to claim 1, wherein The guiding mechanism (4) includes a bending chuck (43) disposed on the guiding base (41). The bending chuck (43) includes a first guiding portion (431) and a second guiding portion (432) arranged side by side. A second guiding groove (433) is formed between the first guiding portion (431) and the second guiding portion (432) for the heating element (8) to pass through and for clamping the heating element (8). One end of the second guiding groove (433) corresponds to the end of the first guiding groove (42) from which the heating element (8) emerges. The other end of (433) is located in the bending area (11). The first guide part (431) and / or the second guide part (432) form a bending part (4321) at the other end of the second guide groove (433). The rotary motion module (33) drives the bending rod (31) to rotate. The bending rod (31) abuts against the heating element (8) and moves closer to the bending part (4321). The bending rod (31) and the bending part (4321) abut against opposite sides of the heating element (8) respectively, bending the heating element (8).
5. The heating sheet bending apparatus according to claim 4, wherein The surfaces of the bending rod (31) and / or the bending portion (4321) that contact the heating element (8) are parallel to the rotation axis of the rotating motion module (33).
6. The heating sheet bending apparatus according to claim 4, wherein When the bending bar (31) is located in the bending area (11), the radial distance between the bending part (4321) and the rotation axis of the rotating motion module (33) is less than the radial distance between the bending part (4321) and the rotation axis of the rotating motion module (33).
7. The heating sheet bending apparatus according to claim 1, wherein The feeding mechanism (2) includes a clamping module (22) for clamping the heating element (8) and a linear motion module (21) for driving the clamping module (22) to move linearly toward the first guide groove (42).
8. The heating sheet bending apparatus according to claim 1, wherein The guide mechanism (4) and the bending area (11) are located on one side of the guide base (41), and the bending rod (31) is located on the other side of the guide base (41). The guide base (41) is provided with a through hole (410). The bending rod (31) passes through the through hole (410) to enter the bending area (11). The reset mechanism (5) drives the bending rod (31) to leave and enter the bending area (11) through the through hole (410).
9. The heating sheet bending apparatus according to claim 8, wherein The reset mechanism (5) is a lifting mechanism connected to the bending mechanism (3). The lifting mechanism is used to drive the bending mechanism (3) to rise and the bending rod (31) to enter the bending area (11), drive the bending mechanism (3) to fall and the bending rod (31) to leave the bending area (11); or the lifting mechanism is used to drive the bending mechanism (3) to fall and the bending rod (31) to enter the bending area (11), drive the bending mechanism (3) to rise and the bending rod (31) to leave the bending area (11).
10. The heating sheet bending apparatus according to claim 1, wherein The bending mechanism (3) includes a limiting member (6) provided on the rotating base (32) and a signal sensing module (7) provided on the frame (1) for sensing the position of the limiting member (6). The limiting member (6) is driven to rotate by the rotating motion module (33) and moves closer to or away from the signal sensing module (7). The feeding mechanism (2) drives the heating element (8) according to the signal of the signal sensing module (7). The rotating motion module (33) drives the bending rod (31) to rotate according to the signal of the signal sensing module (7).
11. The heating sheet bending apparatus according to claim 1, wherein The rotary motion module (33) drives the bending rod (31) to rotate no more than one revolution.