Die feeding mechanism and steel bar bender

Abstract

The utility model belongs to the technical field of reinforcing steel bar machining, and discloses a die feeding mechanism and a reinforcing steel bar bender, the die feeding mechanism comprises a mounting seat, a clamping assembly, a driving assembly and a guide assembly, the clamping assembly is movably connected with the mounting seat through the guide assembly, the clamping assembly is configured to clamp a die, and the driving assembly drives the mounting seat to rotate. The mold limited by the clamping assembly is parallel to the mold mounting surface; the driving assembly is connected with the clamping assembly, and the driving assembly is configured to provide moving power for the clamping assembly. According to the mold feeding mechanism and the steel bar bending machine comprising the mold feeding mechanism, the guide assembly is used for guiding the walking path of the clamping assembly for clamping the mold, so that the clamping assembly can complete two sections of strokes in different directions under the action of one driving assembly, the mold feeding mechanism and the steel bar bending machine are simplified, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of steel bar processing technology, and in particular to a mold feeding mechanism and a steel bar bending machine. Background Technology

[0002] The processing of reinforcing bars often involves bending the ends of the reinforcing bars. When bending, the reinforcing bars need to be placed in the groove of the fixed mold of the reinforcing bar bending machine. The moving mold rotates around the fixed mold, so that the reinforcing bars are bent and shaped between the moving mold and the fixed mold.

[0003] Existing fixed molds can only bend steel bars of a fixed diameter. When processing steel bars of different diameters, steel bar bending machines require manual replacement of the fixed mold, resulting in low processing efficiency and increased labor costs.

[0004] To address this, a mold changing mechanism has been proposed in related technologies. This mechanism provides a fixed mold to the mounting platform in a rebar bending machine and automatically changes the fixed mold in conjunction with the mounting platform. However, existing rebar bending machines typically have the mold mounting surface of the mounting platform tilted relative to the horizontal plane (generally set at 45° relative to the horizontal plane) to facilitate material unloading, allowing the bent rebar to roll off automatically. This leads to the following problem: to deliver the mold to the mounting platform, the feeding structure in the mold changing mechanism needs to first move horizontally towards the mounting platform, and then tilt along the mounting surface to deliver the mold to the fixed mold mounting position on the mounting platform. This results in the mold changing mechanism including at least two drive structures, one for driving the entire mold changing mechanism to move horizontally, and the other for driving the feeding structure to move along the tilt direction of the mounting surface. This complex structure increases the manufacturing cost of the rebar bending machine. Utility Model Content

[0005] One objective of this utility model is to provide a mold feeding mechanism to solve the problem of complex structure; another objective of this utility model is to provide a rebar bending machine to solve the problem of high manufacturing cost.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] In a first aspect, this utility model provides a mold feeding mechanism, including a mounting base, a clamping assembly, a driving assembly, and a guiding assembly. The clamping assembly is movably connected to the mounting base via the guiding assembly. The clamping assembly is configured to clamp a mold, and the mold clamped by the clamping assembly is parallel to the mold mounting surface. The driving assembly is connected to the clamping assembly and is configured to provide moving power to the clamping assembly. The guiding assembly includes a guiding structure disposed on the mounting base and a supporting guide structure disposed on the clamping assembly. The guiding structure includes a first guiding portion and a second guiding portion that are connected to each other and arranged at an angle. The first guiding portion extends along a first direction, and the second guiding portion extends obliquely upward parallel to the mold mounting surface. The supporting guide structure is capable of moving along the extension direction of the guiding structure, and there are two supporting guide structures that are not aligned in a second direction. The guiding structure and the supporting guide structure are arranged in a one-to-one correspondence. The first direction and the second direction are two mutually perpendicular directions in a horizontal plane.

[0008] In one embodiment, the guide structure includes a guide groove formed on the mounting base, and the bearing structure is a bearing member that is slidably or rollingly disposed in the guide groove, and the bearing member is rotatably disposed on the clamping assembly.

[0009] In one embodiment, the clamping assembly is provided with two of the aforementioned guide structures on one side along the second direction, and the mounting base is provided with two of the aforementioned guide structures on one side along the second direction.

[0010] In one embodiment, the clamping assembly includes a mounting bracket, clamping discs, and a guide plate. The mounting bracket is connected to the output end of the driving assembly. A plurality of clamping discs are spaced apart on the mounting bracket along the second direction. Two guide plates are disposed at opposite ends of the mounting bracket along the second direction, and two guide structures are rotatably disposed on the guide plates.

[0011] In one embodiment, the clamping disk is configured as a U-shape, and the clamping disk forms a clamping space with an open side. Both ends of the clamping disk can be inserted into the limiting grooves provided on opposite sides of the mold along the second direction.

[0012] In one embodiment, the clamping assembly further includes a limiting member, one end of which extends into the clamping space to limit the depth to which the mold enters the clamping space.

[0013] In one embodiment, a first positioning block and a second positioning block are respectively provided on the guide plate and the mounting bracket. When the first positioning block and the second positioning block abut against each other, the distance between the two guide structures on the guide plate is the same as the distance between the two guide structures located on the same side of the mounting base along the direction parallel to the line connecting the two guide structures.

[0014] In one embodiment, the driving assembly includes a linear drive and a swing arm. One end of the linear drive is hinged to the mounting base, and the other end of the linear drive is hinged to the swing arm. The first end of the swing arm is hinged to the mounting base, and the second end of the swing arm is provided with a strip-shaped movable groove. A movable connector is rotatably provided on the clamping assembly, and the movable connector is rolled or slidably disposed in the movable groove.

[0015] Secondly, this utility model provides a rebar bending machine, including a bending mechanism and a mold feeding mechanism as described in any of the above embodiments. The bending mechanism includes a mold mounting table, which has a mold mounting surface for mounting the mold. The mold mounting surface is inclined to the horizontal plane, and the mold feeding mechanism is located on one side of the bending mechanism along the first direction.

[0016] In one embodiment, the clamping assembly includes a plurality of clamping discs arranged along the second direction, and the mold feeding mechanism is slidable relative to the bending mechanism along the second direction.

[0017] The beneficial effects of this utility model are:

[0018] The mold feeding mechanism and rebar bending machine in this embodiment of the invention utilize a cooperating guide structure and a support structure to guide the walking path of the clamping component holding the mold, enabling the clamping component to complete two strokes in different directions under the action of a set of drive components, thus simplifying the mold feeding mechanism and the rebar bending machine and reducing manufacturing costs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the mold feeding mechanism in an embodiment of this utility model;

[0020] Figure 2 This is a side view of the mold feeding mechanism in an embodiment of this utility model;

[0021] Figure 3 It is along Figure 2 Sectional view along the middle AA direction;

[0022] Figure 4 This is a front view of the mold feeding mechanism in an embodiment of this utility model;

[0023] Figure 5 It is along Figure 4 Sectional view along the BB direction;

[0024] Figure 6 This is an assembly diagram of the guide structure and the support structure in the embodiments of this utility model;

[0025] Figure 7 This is a three-dimensional schematic diagram of the clamping components;

[0026] Figure 8 This is a partial top view of the clamping component;

[0027] Figure 9 It is an assembly drawing of the support structure and the mounting plate.

[0028] In the picture:

[0029] 1. Mounting base; 11. Main body fixing frame; 111. Side bracket; 112. Connecting main beam; 12. Guide plate; 13. Protective plate; 14. Protective cover; 15. Stop bar;

[0030] 2. Clamping assembly; 21. Mounting bracket; 211. Mounting plate; 212. Connecting support beam; 213. Second positioning block; 22. Clamping disc; 221. Body; 222. First clamping part; 223. Second clamping part; 23. Guide plate; 24. First positioning block; 25. Limiting component; 26. Movable connecting component;

[0031] 3. Drive assembly; 31. Linear drive component; 32. Swing arm; 321. Movable slot; 33. Connecting shaft;

[0032] 4. Guide component; 41. Guide structure; 411. First guide part; 412. Second guide part; 42. Guide support structure. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] refer to Figures 1-9 As shown, an embodiment of this utility model proposes a mold feeding mechanism, including a mounting base 1, a driving assembly 3, a clamping assembly 2, and a guiding assembly 4. The mounting base 1 serves as the mounting foundation for the clamping assembly 2 and the driving assembly 3. The clamping assembly 2 can be movably connected to the mounting base 1 through the guiding assembly 4. The clamping assembly 2 is configured to clamp a mold. The mold on the clamping assembly 2 is parallel to the mold mounting surface. The driving assembly 3 is connected to the clamping assembly 2 to provide moving power to the clamping assembly 2. The guiding assembly 4 includes a cooperating guiding structure 41 and a supporting structure 42. The guiding structure 41 is disposed on the mounting base 1, and the supporting structure 42 is disposed on the clamping assembly 2. The guiding structure 41 is V-shaped and includes a first guiding part 411 and a second guiding part 412 that are connected to each other and disposed at an angle. The first guiding part 411 is along a horizontal first direction ( Figure 1 Extending in the Y direction, the second guide portion 412 extends parallel to the mold mounting surface and tilts upwards. The guide structure 42, under the action of the drive assembly 3, can drive the clamping assembly 2 to move along the extension direction of the guide structure 41. It should be emphasized that at least two guide structures 42 are provided on the clamping assembly 2, and two of the guide structures 42 extend in the second direction (Y direction). Figure 1 The guide structure 41 and the support structure 42 are set one-to-one on different axes in the X direction to prevent the clamping assembly 2 from changing angle during movement.

[0038] The aforementioned mold feeding mechanism is equipped with a guide structure 41 and a support structure 42 on the mounting base 1 and the clamping assembly 2, respectively. The guide structure 41 has a horizontally arranged first guide part 411 and a second guide part 412 that is inclined in the same direction as the mold mounting surface. Under the guidance of the guide structure 41, the support structure 42 on the clamping assembly 2 can drive the entire clamping assembly 2 to move first in the horizontal direction and then in the inclined direction of the mold mounting surface. Only one set of drive components 3 is needed to complete the two strokes in different directions, simplifying the mold feeding mechanism. Moreover, there are two guide structures 41 arranged vertically on one side of the mounting base 1 along the second direction, so that the mold on the clamping assembly 2 maintains a constant angle with the horizontal plane during the movement, that is, the mold always remains parallel to the mold mounting surface, reducing the difficulty of assembling the mold onto the mold mounting surface later.

[0039] In one embodiment, the clamping assembly 2 is provided with two guide structures 42 on at least one side along the second direction, and correspondingly, the mounting base 1 is provided with two parallel guide structures 41 on at least one side along the second direction. In order to improve the synchronicity of movement of the clamping assembly 2, the clamping assembly 2 is movably connected to the mounting base 1 on both opposite sides along the second direction through the guide structures 42.

[0040] In one embodiment, the guide structure 41 includes a guide groove formed in the mounting base 1. The guide groove includes a first sub-groove extending along a first direction and a second sub-groove parallel to the mold mounting surface. The first sub-groove and the second sub-groove are respectively a first guide portion 411 and a second guide portion 412. Correspondingly, the bearing structure 42 is a bearing member that is slidably or rollingly disposed in the guide groove. To reduce friction, the bearing member is preferably a roller, that is, the bearing member makes rolling contact with the guide groove.

[0041] In other embodiments, the guide structure 41 includes a guide rail disposed on the mounting base 1, and correspondingly, the guide structure 42 is configured as a slider, which is slidably disposed on the guide rail and rotatably connected to the clamping assembly 2.

[0042] refer to Figure 1As shown, to reduce the horizontal space occupied by the mold feeding mechanism and improve the smoothness of the movement of the bearing structure 42 along the guide structure 41, and to prevent the bearing structure 42 from getting stuck on the guide structure 41, the drive assembly 3 includes a linear drive component 31 and a swing arm 32. One end of the linear drive component 31 is hinged to the mounting base 1, and the other end is hinged to the middle of the swing arm 32. The first end of the swing arm 32 is hinged to the mounting base 1, and the second end is provided with a strip-shaped movable groove 321. A movable connecting component 26 is rotatably provided on the clamping assembly 2. The movable connecting component 26 is movably disposed in the movable groove 321 and can move along the movable groove 321. It should be noted that the direction of the force of the linear drive component 31 pushing the swing arm 32 forms a certain angle with the direction of the velocity of the two bearing structures 42. This angle is the pressure angle, which is less than 45° to improve transmission efficiency. The linear drive component 31 can adopt linear drive structures including but not limited to cylinders and electric cylinders. In one embodiment, the linear drive 31 is a cylinder, which has a fast response speed and a compact structure.

[0043] In one embodiment, the movable connector 26 is a roller and is rotatably mounted on the guide plate 23. In other embodiments, the movable connector 26 may also be a slider rotatably mounted on the guide plate 23.

[0044] Specifically, two swing arms 32 are arranged along the second direction, and the two swing arms 32 are connected by a connecting rod to improve the synchronicity of the movement of the clamping assembly 2. Two linear drive members 31 are also arranged at intervals along the second direction, and the two linear drive members 31 are respectively connected to the two swing arms 32 to provide sufficient swinging power to the swing arms 32. Specifically, a connecting shaft 33 is also provided between the two swing arms 32, and the output end of the linear drive member 31 is rotatably mounted on the connecting shaft 33.

[0045] In other embodiments, the drive assembly 3 includes a linear drive 31 hinged to the mounting base 1 and the clamping assembly 2, which will not be described in detail here.

[0046] Specifically, refer to Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the mounting base 1 includes a main fixing frame 11 and guide plates 12. Two guide plates 12 are respectively disposed on both sides of the main fixing frame 11 along the second direction, and the guide structure 41 is disposed on the guide plates 12. More specifically, the guide plates 12 are configured as V-shaped with the same shape as the guide structure 41 to reduce space occupation and improve the compactness of the mold feeding mechanism. The main fixing frame 11 includes side supports 111 and connecting main beams 112. Two side supports 111 are spaced apart along the second direction, and the two side supports 111 are connected by connecting main beams 112 extending along the second direction. The guide plates 12 are detachably connected to the side supports 111 by means including but not limited to bolt connection and snap-fit ​​connection, so as to adjust the travel trajectory of the clamping assembly 2 according to actual needs later. The side supports 111 are also configured as V-shaped, and their two ends are respectively connected to the two ends of the V-shape of the guide plates 12.

[0047] refer to Figures 7-8 As shown, the clamping assembly 2 includes a mounting bracket 21, clamping discs 22, and a guide plate 23. The mounting bracket 21 is connected to the output end of the drive assembly 3. Multiple clamping discs 22 are spaced apart on the mounting bracket 21 along the second direction to clamp multiple molds simultaneously. At this time, the mold feeding mechanism also serves to store the molds. Two guide plates 23 are respectively located at opposite ends of the mounting bracket 21 along the second direction. Each guide plate 23 is provided with two guide structures 42.

[0048] Specifically, the clamping plate 22 is U-shaped and includes a body 221, a first clamping part 222 and a second clamping part 223. The first clamping part 222 and the second clamping part 223 are spaced apart on the body 221 along the second direction and cooperate with the body 221 to form a clamping space with one side open, so that the mold can be confined within the clamping space.

[0049] It is worth emphasizing that the mold is provided with limiting grooves on both sides along the second direction. The first clamping part 222 and the second clamping part 223 can be inserted into the limiting grooves provided on both sides of the mold along the second direction, respectively, to achieve clamping and limiting of the mold without having to adjust the size of the clamping space to clamp the mold, thereby reducing the manufacturing cost of the mold feeding mechanism.

[0050] More specifically, the first clamping part 222 and the second clamping part 223 are provided with guide slopes at the ends away from the main body part 221. The guide slopes on the first clamping part 222 and the second clamping part 223 together form a conical guide opening. The guide opening gradually narrows from the end away from the main body part 221 to the end closer to the main body part 221, so as to reduce the difficulty of the mold entering the clamping space.

[0051] refer to Figure 5 and Figure 7As shown, the mounting bracket 21 includes a mounting plate 211 and a connecting support beam 212. The mounting plate 211 is V-shaped, with a first end extending parallel to the mold mounting surface and a second end connected to the connecting support beam 212. The connecting support beam 212 extends along a second direction. The clamping plate 22 is connected to the second end of the mounting plate 211, so the clamping space formed by the clamping plate 22 is naturally parallel to the mold mounting surface. Two guide plates 23 are respectively fixed to the opposite ends of the connecting support beam 212 along the second direction, corresponding to the detachable connection between the guide plate 12 and the main fixing frame 11. The guide plate 23 and the connecting support beam 212, and the clamping plate 22 and the mounting bracket 21 are all detachably connected to facilitate the replacement of the guide plate 23 and the clamping plate 22.

[0052] To reduce the installation difficulty of the guide plate 23, a first positioning block 24 and a second positioning block 213 are respectively provided on the guide plate 23 and the connecting support beam 212. When the first positioning block 24 and the second positioning block 213 abut, the distance between the two guide structures 42 on the same guide plate 23 is the same as the distance between the two guide structures 41 located on the same side of the mounting base 1 along the direction parallel to the line connecting the two guide structures 42. At this time, the two guide structures 42 on the same guide plate 23 can be respectively assembled onto the two guide structures 41 on the same side of the mounting base 1.

[0053] In one embodiment, the clamping assembly 2 further includes a limiting member 25, one end of which is fixed to the body portion 221, and the other end extends into the clamping space and can be inserted into the mold. The limiting member 25 is used to limit the depth of the mold entering the clamping space.

[0054] Specifically, the position of the limiting member 25 on the body 221 is adjustable, thereby adjusting the depth of the mold entering the clamping space, so that, under the premise that the entire stroke of the clamping assembly 2 is fixed, the mold on the clamping assembly 2 at the end of the stroke is directly opposite the mounting position on the mold mounting surface. It can be understood that the end of the stroke is relative to the initial position of the clamping assembly 2, which is located at the beginning of the stroke when it is in the initial position.

[0055] refer to Figure 2 As shown, a clearance hole is provided on the main body 221, and a limiting member 25 is threadedly connected to the main body 221, with one end extending into the clearance hole. When the position of the limiting member 25 needs to be adjusted, simply screw on the limiting member 25.

[0056] In one embodiment, the limiting member 25 is a positioning screw, and a locking nut is also fitted on the positioning screw. The locking nut is used to lock the positioning screw after the positioning screw is adjusted to prevent the positioning screw from loosening.

[0057] refer to Figure 1 and Figure 2As shown, the mounting base 1 also includes a protective plate 13 and a protective cover 14. The two protective plates 13 are respectively fixed to the opposite outer sides of the two guide plates 12 along the second direction to protect the guide structure 41 and the support structure 42. The protective cover 14 is disposed between the two guide plates 12 along the second direction and is located on the side of the first guide portion 411 away from the second guide portion 412.

[0058] Meanwhile, the mounting base 1 also includes a stop bar 15, which is disposed on the guide plate 12 and located on the side of the guide plate 12 facing the clamping assembly 2, in order to reduce the friction between the clamping assembly 2 and the guide plate 12 when it moves. The stop bar 15 can be made of nylon material.

[0059] An embodiment of this utility model also proposes a rebar bending machine, including the above-mentioned mold feeding mechanism and bending mechanism. The bending mechanism includes a mold mounting table, which has a mold mounting surface for mounting molds. The mold mounting surface is inclined to the horizontal plane, and the mold feeding mechanism is located on one side of the bending mechanism along the first direction.

[0060] Based on the clamping assembly 2 including a plurality of clamping discs 22 arranged along the second direction, the mold feeding mechanism can slide relative to the bending mechanism along the second direction to align the mold mounting position and the mold in the second direction.

[0061] It should be emphasized that at least one of the multiple clamping discs 22 is an empty clamping disc, which can be used to clamp the replaced mold.

[0062] When the linear drive 31 extends, the clamping assembly 2 is in the initial position, and the guide structure 42 is located in the first guide part 411. When the rebar bending machine needs to change the mold, the linear drive 31 retracts, and the guide structure 42 drives the clamping assembly 2 to move under the guidance of the guide structure 41, thereby driving the mold on the clamping assembly 2 to move at a fixed angle and move to the mold installation position on the mold mounting table, and exchange molds with the bending mechanism.

[0063] The specific process of assembling and disassembling the mold from the mold mounting table can be achieved using any assembly robot in the existing technology. Alternatively, the mold mounting surface of the bending mechanism is provided with a locking shaft for connecting the mold. The top of the locking shaft is provided with multiple circumferentially distributed first protrusions, and a first groove is formed between adjacent first protrusions. The mold includes a base, a locking assembly, a first bending mold block and a second bending mold block. The first bending mold block and the second bending mold block are spaced apart on the base. The base is provided with a locking groove, a first receiving groove and a second receiving groove. The locking groove is used to pass through the locking shaft, and a second protrusion is provided in the locking groove. A second groove is formed between adjacent second protrusions. The locking assembly includes a first locking member, a first elastic member, a second locking member and a second elastic member. The first elastic member is disposed in the first receiving groove, and the first locking member abuts against the first elastic member. The second elastic member is disposed in the second receiving groove, and the second locking member abuts against the second elastic member. The first locking member and the second locking member are used to clamp the locking shaft.

[0064] When the mold is assembled on the locking shaft, the first protrusion aligns with the second groove until the first protrusion is fully inserted into the locking groove and passes over the second protrusion. The first locking member and the second locking member are pushed open and compressed by the first elastic member and the second elastic member. The locking rotation makes the first protrusion and the second protrusion aligned. At this time, the locking shaft is axially limited and locked. At the same time, the first locking member and the second locking member extend into the first groove under the elastic action of the first elastic member and the second elastic member, respectively, so that the locking shaft is circumferentially limited and locked. The locking shaft cannot rotate freely when there is no external force.

[0065] During unlocking, the locking shaft rotates in the opposite direction, causing the first protrusion to overcome the elastic force of the first and second elastic elements, pushing open the first and second locking elements. At the same time, the first and second protrusions are misaligned, and the locking shaft disengages from the locking groove along the axial direction, thereby unlocking the mold from the bending mechanism. During the unlocking process, the first clamping part 222 and the second clamping part 223 of the mold feeding mechanism are respectively inserted into the limiting grooves on both sides of the mold. After unlocking, the mold feeding mechanism moves along the second direction, so that the mold to be replaced on the mold feeding mechanism is facing the locking shaft. The locking shaft rises and rotates, locking the mold with the locking shaft, thus completing the mold replacement.

[0066] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A mold feeding mechanism, characterized in that, The mold feeding mechanism includes: Mounting base (1); The clamping assembly (2) is movably connected to the mounting base (1) via the guide assembly (4). The clamping assembly (2) is configured to clamp the mold, and the mold clamped in the clamping assembly (2) is parallel to the mold mounting surface. A drive assembly (3) is connected to the clamping assembly (2), the drive assembly (3) being configured to provide movement power to the clamping assembly (2); The guide assembly (4) includes a guide structure (41) disposed on the mounting base (1) and a support guide structure (42) disposed on the clamping assembly (2). The guide structure (41) includes a first guide portion (411) and a second guide portion (412) that are connected to each other and arranged at an angle. The first guide portion (411) extends along a first direction, and the second guide portion (412) extends parallel to the mold mounting surface and inclined upward. The support guide structure (42) can travel along the extension direction of the guide structure (41), and there are two support guide structures (42) that are not aligned in a second direction. The guide structure (41) and the support guide structure (42) are arranged in a one-to-one correspondence. The first direction and the second direction are two mutually perpendicular directions in the horizontal plane.

2. The mold feeding mechanism according to claim 1, characterized in that, The guide structure (41) includes a guide groove formed on the mounting base (1), and the bearing structure (42) is a bearing member that is slidably or rollingly disposed in the guide groove, and the bearing member is rotatably disposed on the clamping assembly (2).

3. The mold feeding mechanism according to claim 1, characterized in that, The clamping assembly (2) has two of the aforementioned guide structures (42) on one side along the second direction, and the mounting base (1) has two of the aforementioned guide structures (41) on one side along the second direction.

4. The mold feeding mechanism according to claim 3, characterized in that, The clamping assembly (2) includes a mounting bracket (21), clamping discs (22) and a guide plate (23). The mounting bracket (21) is connected to the output end of the driving assembly (3). A plurality of clamping discs (22) are spaced apart on the mounting bracket (21) along the second direction. Two guide plates (23) are disposed at opposite ends of the mounting bracket (21) along the second direction, and two guide structures (42) are rotatably disposed on the guide plate (23).

5. The mold feeding mechanism according to claim 4, characterized in that, The clamping disk (22) is U-shaped as a whole, and the clamping disk (22) forms a clamping space with an open side. Both ends of the clamping disk (22) can be inserted into the limiting grooves set on opposite sides of the mold along the second direction.

6. The mold feeding mechanism according to claim 5, characterized in that, The clamping assembly (2) further includes a limiting member (25), one end of which extends into the clamping space to limit the depth to which the mold enters the clamping space.

7. The mold feeding mechanism according to claim 4, characterized in that, The guide plate (23) and the mounting bracket (21) are respectively provided with a first positioning block (24) and a second positioning block (213). When the first positioning block (24) and the second positioning block (213) abut, the distance between the two guide structures (42) on the guide plate (23) is the same as the distance between the two guide structures (41) located on the same side of the mounting base (1) along the direction parallel to the line connecting the two guide structures (42).

8. The mold feeding mechanism according to any one of claims 1-6, characterized in that, The drive assembly (3) includes a linear drive (31) and a swing arm (32). One end of the linear drive (31) is hinged to the mounting base (1), and the other end of the linear drive (31) is hinged to the middle of the swing arm (32). The first end of the swing arm (32) is hinged to the mounting base (1), and the second end of the swing arm (32) is provided with a strip-shaped movable groove (321). A movable connector (26) is rotatably provided on the clamping assembly (2), and the movable connector (26) is rolled or slidably disposed in the movable groove (321).

9. A rebar bending machine, characterized in that, The invention includes a bending mechanism and a mold feeding mechanism as described in any one of claims 1-8. The bending mechanism includes a mold mounting table having a mold mounting surface for mounting the mold. The mold mounting surface is inclined to a horizontal plane. The mold feeding mechanism is located on one side of the bending mechanism along the first direction.

10. The rebar bending machine according to claim 9, characterized in that, The clamping assembly (2) includes a plurality of clamping discs (22) arranged along the second direction, and the mold feeding mechanism is slidable relative to the bending mechanism along the second direction.

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