Die feeding mechanism and steel bar bender

Abstract

The invention belongs to the technical field of steel bar machining, and discloses a mold feeding mechanism and a steel bar bender, the mold feeding mechanism comprises a mounting base, a clamping assembly, a driving assembly and a guiding assembly, the clamping assembly is movably connected with the mounting base through the guiding assembly, the clamping assembly is configured to clamp a mold, and the driving assembly is configured to drive the clamping assembly 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] The invention relates to the technical field of steel bar processing, and in particular to a mold feeding mechanism and a steel bar bending machine. Background Art

[0002] The steel bar processing process often involves bending the ends of the steel bars. When bending, the steel bars need to be placed in the groove of the fixed die of the steel bar bending machine, and the movable die is rotated around the fixed die to bend the steel bars between the movable die and the fixed die.

[0003] Existing fixed dies can often only bend steel bars of fixed diameters. When the steel bar bending machine processes steel bars of different diameters, the fixed dies need to be replaced manually, resulting in low processing efficiency and increased labor costs.

[0004] To this end, a mold replacement mechanism is proposed in the related art, which can provide the fixed mold to the mounting table for installing the fixed mold in the steel bar bending machine, and automatically replace the fixed mold in cooperation with the mounting table. However, in order to facilitate unloading, the mold mounting surface of the mounting table of the existing steel bar bending machine is usually inclined relative to the horizontal plane (generally set to be inclined at 45° relative to the horizontal plane) so that the bent steel bars can roll down automatically. This brings about the following problems: in order to deliver the mold to the mounting table, the feeding structure in the mold replacement mechanism needs to first make a horizontal movement close to the mounting table, and then make an inclined movement along the mounting surface to deliver the mold to the fixed mold installation position of the mounting table. This results in the mold replacement mechanism including at least two driving structures, one of which is used to drive the mold replacement mechanism as a whole to make a horizontal movement, and the other is used to drive the feeding structure to move along the inclined direction of the mounting surface. The structure is complicated and the manufacturing cost of the steel bar bending machine is increased. Summary of the invention

[0005] One of the purposes of the present invention is to provide a mold feeding mechanism to solve the problem of complex structure; the second purpose of the present invention is to provide a steel bar bending machine to solve the problem of high manufacturing cost.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In the first aspect, the present invention provides a mold feeding mechanism, comprising a mounting seat, a clamping assembly, a driving assembly and a guiding assembly, wherein the clamping assembly is movably connected to the mounting seat through the guiding assembly, the clamping assembly is configured to clamp the 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 the driving assembly is configured to provide moving power to the clamping assembly; the guiding assembly comprises a guiding structure arranged on the mounting seat and a supporting structure arranged on the clamping assembly, the guiding structure comprises 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, the second guiding portion is parallel to the mold mounting surface and extends obliquely upward, the supporting structure can move along the extension direction of the guiding structure, and there are two supporting structures that are not coaxial in the second direction, and the guiding structure is arranged one-to-one with the supporting structure; the first direction and the second direction are two directions perpendicular to each other in a horizontal plane.

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

[0009] In one embodiment, two supporting and guiding structures are disposed on one side of the clamping assembly along the second direction, and two guiding structures are disposed on one side of the mounting seat along the second direction.

[0010] In one embodiment, the clamping assembly includes a mounting bracket, a clamping disk and a supporting guide plate, the mounting bracket is connected to the output end of the driving assembly, a plurality of the clamping disks are arranged on the mounting bracket at intervals along the second direction, two supporting guide plates are arranged at opposite ends of the mounting bracket along the second direction, and two supporting guide structures are rotatably arranged on the supporting guide plate.

[0011] In one embodiment, the clamping disk is configured as a U-shape as a whole, and the clamping disk forms a clamping space with one side open, and both ends of the clamping disk can be inserted into limiting grooves provided on both 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 of the mold entering the clamping space.

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

[0014] In one embodiment, the driving assembly includes a linear driving member and a swing arm, one end of the linear driving member is hinged to the mounting seat, the other end of the linear driving member is hinged to the swing arm, the first end of the swing arm is hinged to the mounting seat, the second end of the swing arm is provided with a strip-shaped movable groove, and a movable connecting member is rotatably provided on the clamping assembly, and the movable connecting member is rolling or slidingly provided in the movable groove.

[0015] In a second aspect, the present invention provides a steel bar bending machine, comprising a bending mechanism and a mold feeding mechanism as described in any of the above embodiments, wherein the bending mechanism comprises a mold mounting table, the mold mounting table having a mold mounting surface for mounting the mold, the mold mounting surface being inclined to a horizontal plane, and the mold feeding mechanism being arranged on one side of the bending mechanism along the first direction.

[0016] In one embodiment, the clamping assembly includes a plurality of clamping plates arranged along the second direction, and the mold loading mechanism is capable of sliding along the second direction relative to the bending mechanism.

[0017] Beneficial effects of the present invention:

[0018] The mold feeding mechanism and the steel bar bending machine in the embodiment of the present invention utilize mutually cooperating guiding structures and supporting structures to guide the travel path of the clamping assembly of the clamping mold, so that the clamping assembly can complete two strokes in different directions under the action of a set of driving assemblies, thereby simplifying the mold feeding mechanism and the steel bar bending machine and reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the mold feeding mechanism in the embodiment of the present invention;

[0020] Figure 2 is a side view of a mold feeding mechanism in an embodiment of the present invention;

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

[0022] Figure 4 is a front view of a mold feeding mechanism in an embodiment of the present invention;

[0023] Figure 5 is along Figure 4 Cross-sectional view along the BB direction;

[0024] Figure 6 is an assembly diagram of the guide structure and the bearing structure in an embodiment of the present invention;

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

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

[0027] Fig. 9 It is the assembly drawing of the supporting structure and the mounting plate.

[0028] In the figure:

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

[0030] 2. Clamping assembly; 21. Mounting bracket; 211. Mounting plate; 212. Connecting support beam; 213. Second positioning block; 22. Clamping plate; 221. Main body; 222. First clamping part; 223. Second clamping part; 23. Supporting guide plate; 24. First positioning block; 25. Limiting member; 26. Active connecting member;

[0031] 3. driving assembly; 31. linear driving member; 32. swing arm; 321. movable slot; 33. connecting shaft;

[0032] 4. Guide assembly; 41. Guide structure; 411. First guide portion; 412. Second guide portion; 42. Supporting and guiding structure. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] refer to Figure 1-Figure 9 As shown, in an embodiment of the present invention, a mold feeding mechanism is proposed, including a mounting seat 1, a driving assembly 3, a clamping assembly 2 and a guide assembly 4. The mounting seat 1 serves as a mounting base for the clamping assembly 2 and the driving assembly 3. The clamping assembly 2 can be movably connected to the mounting seat 1 through the guide assembly 4. The clamping assembly 2 is configured to clamp the 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 guide assembly 4 includes a guiding structure 41 and a supporting structure 42 that cooperate with each other. The guiding structure 41 is arranged on the mounting seat 1, and the supporting structure 42 is arranged on the clamping assembly 2. The guiding structure 41 is arranged in a V-shape, including a first guiding portion 411 and a second guiding portion 412 that are connected to each other and arranged at an angle. The first guiding portion 411 is arranged along a horizontal first direction ( Figure 1 The second guide portion 412 is parallel to the mold mounting surface and extends obliquely upward. The guide structure 42 can drive the clamping assembly 2 to move along the extension direction of the guide structure 41 under the action of the driving assembly 3. It should be emphasized that at least two guide structures 42 are provided on the clamping assembly 2, and there are two guide structures 42 in the second direction ( Figure 1 The guide structure 41 and the supporting structure 42 are not coaxial in the middle X direction, and are arranged in a one-to-one correspondence to prevent the angle of the clamping assembly 2 from changing during the movement.

[0038] The mold feeding mechanism is provided with a guide structure 41 and a bearing structure 42 on the mounting seat 1 and the clamping assembly 2, respectively. The guide structure 41 has a first guide portion 411 arranged horizontally and a second guide portion 412 arranged in the same direction as the mold mounting surface. The bearing 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 direction of the mold mounting surface under the guidance of the guide structure 41. Only one set of driving assemblies 3 can be used to complete two travels in different directions, thereby simplifying the mold feeding mechanism. Moreover, two guide structures 41 are arranged on one side of the mounting seat 1 along the second direction, so that the mold on the clamping assembly 2 maintains an unchanged angle with the horizontal plane during the movement, that is, the mold is always kept parallel to the mold mounting surface, thereby reducing the difficulty of assembling the mold on the mold mounting surface in the later stage.

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

[0040] In one embodiment, the guide structure 41 includes a guide groove provided in the mounting seat 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 guide structure 42 is a guide member slidingly or rollingly arranged in the guide groove. To reduce friction, the guide member is preferably a roller, that is, the guide member is in rolling contact with the guide groove.

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

[0042] refer to Figure 1As shown, in order to reduce the space occupied by the mold feeding mechanism in the horizontal direction, and at the same time improve the smoothness of the bearing and guiding structure 42 when moving along the guide structure 41, and avoid the bearing and guiding structure 42 from being stuck on the guide structure 41, the driving assembly 3 includes a linear driving member 31 and a swing arm 32, one end of the linear driving member 31 is hinged to the mounting seat 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 seat 1, and the second end is provided with a strip-shaped movable groove 321, and the clamping assembly 2 is rotatably provided with a movable connecting member 26, which is movably provided 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 driving member 31 pushing the swing arm 32 forms a certain angle with the direction of the speed of the two bearing and guiding structures 42, and the angle is the pressure angle, and the angle of the pressure angle is less than 45°, so as to improve the transmission efficiency. The linear driving member 31 can adopt a linear driving structure including but not limited to a cylinder, an electric cylinder, etc. In one embodiment, the linear drive member 31 is a cylinder, which has a fast response speed and a compact structure.

[0043] In one embodiment, the movable connecting member 26 is a roller and is rotatably disposed on the guide plate 23. In other embodiments, the movable connecting member 26 can also be a slider rotatably disposed on the guide plate 23.

[0044] Specifically, two swing arms 32 are provided along the second direction, and the two swing arms 32 are connected by a connecting rod to improve the synchronization when the clamping assembly 2 moves. Two linear drive members 31 are also provided 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 swing 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 provided on the connecting shaft 33.

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

[0046] Specifically, refer to Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the mounting base 1 includes a main body fixing frame 11 and a guide plate 12. The two guide plates 12 are respectively arranged on both sides of the main body fixing frame 11 along the second direction, and the guide structure 41 is arranged on the guide plate 12. More specifically, the guide plate 12 is arranged in a V-shape that is roughly the same as the guide structure 41 to reduce the occupied space and improve the compactness of the mold feeding mechanism. The main body fixing frame 11 also includes a side bracket 111 and a connecting main beam 112. Two side brackets 111 are arranged at intervals along the second direction. The two side brackets 111 are connected by the connecting main beam 112 extending along the second direction. The guide plate 12 is detachably connected to the side bracket 111 by means including but not limited to bolt connection and clamping, so as to adjust the walking track of the clamping assembly 2 according to actual needs in the later stage. The side bracket 111 is also arranged in a V-shape, and its two ends are respectively connected to the two ends of the V-shape of the guide plate 12.

[0047] refer to Figure 7-Figure 8 As shown, the clamping assembly 2 includes a mounting bracket 21, a clamping disk 22 and a supporting guide plate 23, wherein the mounting bracket 21 is connected to the output end of the driving assembly 3, and a plurality of clamping disks 22 are arranged on the mounting bracket 21 at intervals along the second direction to clamp a plurality of molds at the same time. At this time, the mold feeding mechanism also plays a role in storing the molds. The two supporting guide plates 23 are respectively arranged at the opposite ends of the mounting bracket 21 along the second direction, and each supporting guide plate 23 is provided with two supporting structures 42.

[0048] Specifically, the clamping plate 22 is configured as a U-shape as a whole, including a main body 221, a first clamping portion 222 and a second clamping portion 223. The first clamping portion 222 and the second clamping portion 223 are arranged on the main body 221 at intervals along the second direction, and cooperate with the main body 221 to form a clamping space with an open side, and the mold can be confined in the clamping space.

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

[0050] More specifically, the first clamping portion 222 and the second clamping portion 223 are provided with guide slopes at one end away from the main body portion 221, and the guide slopes on the first clamping portion 222 and the second clamping portion 223 together form a conical guide opening, which gradually converges from the end away from the main body portion 221 to the end close to the main body portion 221 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 configured to be V-shaped, and has a first end extending in a direction parallel to the mold mounting surface and a second end connected to the connecting support beam 212. The connecting support beam 212 extends along the second direction, and the clamping plate 22 is connected to the second end of the mounting plate 211. Then, the clamping space formed by the clamping plate 22 is naturally parallel to the mold mounting surface. The two supporting guide plates 23 are respectively fixed to the opposite ends of the connecting support beam 212 along the second direction, corresponding to the setting of the detachable connection between the guide plate 12 and the main body fixing frame 11. The supporting guide plate 23 and the connecting support beam 212, the clamping plate 22 and the mounting bracket 21 can be detachably connected to facilitate the replacement of the supporting guide plate 23 and the clamping plate 22.

[0052] In order to reduce the difficulty of installing the guide plate 23, the guide plate 23 and the connecting beam 212 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 are in contact, 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 on the same side of the mounting seat 1 in a direction parallel to the connecting line of the two guide structures 42. At this time, the two guide structures 42 on the same guide plate 23 can be respectively assembled on the two guide structures 41 on the same side of the mounting seat 1.

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

[0054] Specifically, the position of the stopper 25 on the main body 221 is adjustable, so as to adjust the depth of the mold entering the clamping space, so that the mold on the clamping assembly 2 at the end of the stroke is directly opposite to the installation position on the mold installation surface under the premise that the stroke of the entire clamping assembly 2 is fixed. It can be understood that the end of the stroke is relative to the initial position of the clamping assembly 2, and the clamping assembly 2 is located at the starting point of the stroke when it is in the initial position.

[0055] refer to Figure 2 As shown, a relief hole is provided on the main body 221, and the limiting member 25 is threadedly connected to the main body 221, and one end thereof extends into the relief hole. When the position of the limiting member 25 needs to be adjusted, it is only necessary to screw the limiting member 25.

[0056] In one embodiment, the limiting member 25 is a positioning screw, and a locking nut is sleeved 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 further includes a protective plate 13 and a protective cover 14, and 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 supporting structure 42. The protective cover 14 is arranged 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] At the same time, the mounting base 1 also includes a baffle 15, which is arranged on the guide plate 12 and located on the side of the guide plate 12 facing the clamping assembly 2 to reduce the friction between the clamping assembly 2 and the guide plate 12 when moving. The baffle 15 can be made of nylon.

[0059] A steel bar bending machine is also proposed in an embodiment of the present invention, comprising the above-mentioned mold feeding mechanism and bending mechanism, the bending mechanism comprising a mold mounting table, the mold mounting table having a mold mounting surface for mounting the mold, the mold mounting surface is arranged inclined to the horizontal plane, and the mold feeding mechanism is arranged on one side of the bending mechanism along the first direction.

[0060] Based on the arrangement that the clamping assembly 2 includes a plurality of clamping plates 22 arranged along the second direction, the mold loading mechanism can slide relative to the bending mechanism along the second direction to align the mold installation position and the mold in the second direction.

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

[0062] When the linear drive member 31 is extended, the clamping assembly 2 is in the initial position, and the supporting structure 42 is located at the first guide portion 411. When the steel bar bending machine needs to replace the mold, the linear drive member 31 is retracted, and the supporting structure 42 drives the clamping assembly 2 to move under the guiding action 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 installation table to exchange the mold with the bending mechanism.

[0063] The specific process of disassembling and assembling the mold from the mold mounting table can be implemented by any assembly robot in the prior art. Alternatively, a locking shaft for connecting the mold is provided on the mold mounting surface of the bending mechanism, a plurality of circumferentially distributed first protrusions are provided on the top of the locking shaft, 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 arranged on the base at intervals, the base is provided with a locking groove, a first receiving groove and a second receiving groove, the locking groove is used to pass the locking shaft, and a second protrusion is provided in the locking groove, and 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 arranged in the first receiving groove, the first locking member abuts against the first elastic member, the second elastic member is arranged in the second receiving groove, the second locking member abuts against the second elastic member, and 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 is aligned with the second groove until the first protrusion completely enters the locking groove and passes over the second protrusion, the first locking piece and the second locking piece are pushed open and compress the first elastic piece and the second elastic piece, and the locking rotation makes the first protrusion aligned with the second protrusion. At this time, the locking shaft is axially limited and locked; at the same time, the first locking piece and the second locking piece extend into the first groove under the elastic action of the first elastic piece and the second elastic piece respectively, so that the locking shaft is circumferentially limited and locked, and the locking shaft cannot rotate freely without external force.

[0065] When unlocking, the locking shaft rotates in the opposite direction, so that the first protrusion overcomes the elastic force of the first elastic member and the second elastic member, pushes open the first locking member and the second locking member, and at the same time, the first protrusion is staggered with the second protrusion, and the locking shaft disengages from the locking groove along the axial direction, thereby unlocking the mold and 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 limit grooves on both sides of the mold. After unlocking is completed, the mold feeding mechanism moves along the second direction, so that the mold to be replaced on the mold feeding mechanism is opposite to the locking shaft, and the locking shaft rises and rotates to lock the mold and the locking shaft, thereby completing the mold replacement.

[0066] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Mould feeding mechanism, characterized in that: The mold feeding mechanism comprises: Mounting seat (1); A clamping assembly (2) is movably connected to the mounting seat (1) via a guide assembly (4), the clamping assembly (2) being configured to clamp a mold, the mold clamped by the clamping assembly (2) being parallel to a mold mounting surface; A driving assembly (3) connected to the clamping assembly (2), wherein the driving assembly (3) is configured to provide moving power to the clamping assembly (2); The guide assembly (4) comprises a guide structure (41) arranged on the mounting seat (1) and a supporting structure (42) arranged on the clamping assembly (2); the guide structure (41) comprises a first guide portion (411) and a second guide portion (412) which are connected to each other and arranged at an angle; the first guide portion (411) extends along a first direction; the second guide portion (412) is parallel to the mold mounting surface and extends obliquely upward; the supporting structure (42) can move along the extension direction of the guide structure (41); and there are two supporting structures (42) which are not coaxial in the second direction; the guide structure (41) and the supporting structure (42) are arranged in a one-to-one correspondence; The first direction and the second direction are two directions perpendicular to each other in a horizontal plane.

2. The mold feeding mechanism according to claim 1, characterized in that: The guide structure (41) comprises a guide groove provided on the mounting seat (1); the guide structure (42) is a guide member slidably or rollingly arranged in the guide groove; the guide member is rotatably arranged on the clamping assembly (2).

3. The mold feeding mechanism according to claim 1, characterized in that: The clamping assembly (2) is provided with two supporting and guiding structures (42) on one side along the second direction, and the mounting seat (1) is provided with two guiding 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) comprises a mounting bracket (21), a clamping disk (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 disks (22) are arranged on the mounting bracket (21) at intervals along the second direction; two guide plates (23) are arranged at opposite ends of the mounting bracket (21) along the second direction; and two guide structures (42) are rotatably arranged on the guide plate (23).

5. The mold feeding mechanism according to claim 4, characterized in that: The clamping plate (22) is configured as a U-shape as a whole, and the clamping plate (22) forms a clamping space with one side open, and the two ends of the clamping plate (22) can be inserted into the limiting grooves provided on the 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 comprises a limiting member (25), one end of which extends into the clamping space to limit the depth of the mold entering 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) are in contact, 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 seat (1) along a direction parallel to the line connecting the two guide structures (42).

8. The mold feeding mechanism according to any one of claims 1 to 6, characterized in that: The driving assembly (3) comprises a linear driving member (31) and a swing arm (32); one end of the linear driving member (31) is hinged to the mounting seat (1); the other end of the linear driving member (31) is hinged to the middle part of the swing arm (32); the first end of the swing arm (32) is hinged to the mounting seat (1); the second end of the swing arm (32) is provided with a strip-shaped movable groove (321); a movable connecting member (26) is rotatably provided on the clamping assembly (2); and the movable connecting member (26) is rollingly or slidingly provided in the movable groove (321).

9. Steel bar bending machine, characterized in that, It comprises a bending mechanism and a mold feeding mechanism as described in any one of claims 1 to 8, wherein the bending mechanism comprises a mold mounting table, the mold mounting table has a mold mounting surface for mounting the mold, the mold mounting surface is arranged inclined to a horizontal plane, and the mold feeding mechanism is arranged on one side of the bending mechanism along the first direction.

10. The steel bar bending machine according to claim 9, characterized in that: The clamping assembly (2) comprises a plurality of clamping plates (22) arranged along the second direction, and the mold loading mechanism is capable of sliding along the second direction relative to the bending mechanism.

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