Frame bending machine and bed net frame production line

Abstract

The invention discloses a frame bending machine and a bed net frame production line, and the frame bending machine comprises a bending mechanism which comprises at least two bending parts, and the at least two bending parts are arranged at intervals in the left-right direction; the stamping mechanism is located between the two bending parts and comprises a stamping part, a material stirring part, a positioning part and a feeding part, the stamping part is provided with an openable stamping space, the positioning part is provided with two positioning clamping hands capable of getting close to or getting away from the stamping space, and the two positioning clamping hands are located on the left side and the right side of the stamping space correspondingly; the side, away from the stamping part, of each positioning part is provided with a shifting part, each shifting part is provided with a shifting rod capable of moving front and back, and the feeding part is provided with a feeding clamping hand capable of being close to or away from the stamping space. The labor intensity of workers is reduced, and the overall production efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to a metal processing machine, in particular to a frame bending machine and a bed net frame production line. Background Art

[0002] When manufacturing the bed net frame, the steel wire is usually manually fed to the frame bending machine. After the frame bending machine bends the steel wire into a rectangle, the worker takes the connecting sleeve and inserts the two ends of the steel wire into the two ends of the connecting sleeve respectively, so that the steel wire and the connecting sleeve are relatively fixed, thereby forming the bed net frame. In this production and processing process, the worker needs to take the bent steel wire out of the frame bending machine, and then assemble the connecting sleeve, and then transport it to the stamping machine to stamp the connecting sleeve and the steel wire. The labor intensity of the workers is relatively high, and the overall production efficiency is low. Therefore, a device that can improve the production and processing efficiency of the bed net frame is needed. Summary of the invention

[0003] The object of the present invention is to provide a frame bending machine and a bed net frame production line to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the present invention to solve its technical problem is:

[0005] A frame bending machine comprises: a bending mechanism, which comprises at least two bending parts, and at least two of the bending parts are arranged at intervals in the left-right direction; a stamping mechanism, which is located between the two bending parts, and the stamping mechanism comprises a stamping part, a material-discharging part, a positioning part and a feeding part, the stamping part has an openable and closable stamping space, the positioning part has two positioning clamps that can approach or move away from the stamping space, the two positioning clamps are respectively located on the left and right sides of the stamping space, the two positioning parts are provided with the material-discharging parts on one side away from the stamping part, the two material-discharging parts respectively have a lever that can move forward and backward, and the feeding part has a feeding clamp that can approach or move away from the stamping space.

[0006] The technical solution has at least the following beneficial effects: during production, the frame strips of the bed net frame that need to be bent, such as steel wire, are placed in the bending mechanism, the steel wire is bent by at least two bending parts, and then the two ends of the bent steel wire are stamped and combined by the stamping mechanism. Specifically, the feeding part in the stamping mechanism feeds the connecting sleeve for connecting the steel wire, and the connecting sleeve is sent into the stamping space opened by the stamping part by the feeding clamp, and then the lever of the feeding part pushes the two ends of the steel wire in the front and rear directions to approach the positioning clamps, ensuring that the two ends of the steel wire can enter the positioning clamps of the two positioning parts, and then the positioning clamps in the two positioning parts approach the stamping space, driving the two ends of the steel wire to be inserted into the left and right ends of the connecting sleeve respectively, and finally the stamping space of the stamping part is closed, and the connecting sleeve is stamped and combined with the steel wire, so that the bending and stamping of the bed net frame can be completed, saving the step of transferring the bed net from different equipment, and does not require manual splicing and assembly, reducing the labor intensity of workers, and greatly improving the overall production efficiency.

[0007] As a further improvement of the above technical solution, the stamping part includes a lower die, an upper die and a stamping drive, the upper die is located above the lower die, the upper die is connected to the stamping drive, the stamping drive can drive the upper die to move up and down, and the stamping space is formed between the upper die and the lower die. The bottom surface of the upper die is provided with an upper avoidance groove extending in the front-to-back direction and an upper forming groove extending in the left-to-right direction, and the top surface of the lower die is provided with a lower avoidance groove opposite to the upper avoidance groove and a lower forming groove opposite to the upper forming groove. Before stamping, the upper die is separated from the lower die. At this time, the stamping space formed between the upper die and the lower die is in an open state. The loading clamp approaches the stamping space and sends the clamped connecting sleeve into the stamping space. At this time, the upper avoidance groove on the bottom surface of the upper die and the lower avoidance groove on the top surface of the lower die can avoid the loading clamp, and the connecting sleeve is located between the upper forming groove on the bottom surface of the upper die and the lower forming groove on the top surface of the lower die. At this time, the stamping drive drives the upper die to move downward and approach the lower die, and the upper avoidance groove and the lower avoidance groove are connected. The through groove forms an avoidance space to prevent interference and collision with the feeding clamp, while the upper forming through groove and the lower forming through groove form a forming space, and the two ends of the connecting sleeve can be punched and formed, so that the steel wires entering the two ends of the connecting sleeve can be punched and fixed in the connecting sleeve. In this way, when the steel wire and the connecting sleeve are assembled and punched, the feeding clamp can be used to keep the connecting sleeve in position, so that the two ends of the steel wire can be smoothly inserted into the connecting sleeve, and slippage can be prevented when the connecting sleeve is punched, thereby improving the stamping quality.

[0008] As a further improvement of the above technical solution, the feeding part includes a vibration plate, a feeding rotation drive, a feeding translation drive, a feeding lifting drive and a transfer clamp. The feeding rotation drive and the vibration plate are arranged in sequence in front of the lower mold, and the output end of the vibration plate is connected with a straight vibration guide rail. The feeding lifting drive is located beside the vibration plate. The feeding translation drive is connected to the feeding lifting drive, and the feeding lifting drive can drive the feeding translation drive to move up and down. The transfer clamp is connected to the feeding translation drive, and the feeding translation drive can drive the feeding lifting drive to move back and forth above the end of the straight vibration guide rail and above the feeding clamp. The feeding clamp is connected to the feeding rotation drive, and the feeding rotation drive can drive the feeding clamp to enter the lower avoidance groove downward or move upward away from the lower avoidance groove. The vibrating plate is used to arrange and load the connecting sleeves assembled to form the bed net frame, so that the connecting sleeves are arranged one by one in the straight vibration guide rail, and then the loading translation drive and the loading lifting drive drive drive the transfer clamp to move horizontally to the top of the straight vibration guide rail, and move down to the end of the straight vibration guide rail, and the transfer clamp grabs a connecting sleeve located at the end of the straight vibration guide rail, and then the transfer clamp moves up to take out the connecting sleeve, and then moves to the top of the loading clamp, and moves down to place the connecting sleeve into the loading clamp. At this time, the loading rotary drive can drive the loading clamp to rotate, and drive the loading clamp to rotate into the lower avoidance slot. The transfer clamp can return to reset and prepare to take out the next connecting sleeve from the straight vibration guide rail. After waiting for the connection sleeve to be stamped and the finished product to be removed, the loading clamp can also be driven by the loading rotary drive to rotate in the opposite direction and reset.

[0009] As a further improvement of the above technical solution, the positioning part includes a positioning translation drive, the positioning translation drive is arranged in front of the lower die, and the left and right sides of the positioning translation drive respectively have two movable ends that can move left and right, and the two positioning clamps are respectively connected to the two movable ends of the positioning translation drive. Before working, the movable ends on both sides of the positioning translation drive are in a state of being away from each other, and at this time, the two positioning clamps are respectively located at positions away from the stamping space. When the two positioning clamps clamp the two ends of the steel wire, the two movable ends of the positioning translation drive drive the two positioning clamps to approach each other, and drive the two ends of the steel wire to be inserted from the left and right ends of the connecting sleeve respectively, so that the mutual assembly of the steel wire and the connecting sleeve can be realized.

[0010] As a further improvement of the above technical solution, the material shifting part includes a rotary clamping cylinder, the shifting rod is connected to the rotary clamping cylinder, and the rotary clamping cylinder can drive the shifting rod to rotate and move forward and backward along an axis extending in a forward and backward direction. Before the material-moving part works, the lever is in a horizontal state, which can reduce interference with the bending of the steel wire and make the steel wire closer to the two positioning clamps. When the steel wire needs to be moved into the two positioning clamps, the rotating clamping cylinder drives the lever to move backward to ensure that the lever moves to the rear of the steel wire. Then the rotating clamping cylinder drives the lever to rotate to a vertical state. Then the rotating clamping cylinder drives the lever forward to move forward, and the lever drives the steel wire to move close to the feeding clamp, so as to ensure that the steel wire enters the feeding clamp and adjust the front and rear positions of the steel wire ends so that the steel wire can be aligned with the end of the connecting sleeve when clamped in the feeding clamp. After the feeding clamp clamps the steel wire, the rotating clamping cylinder drives the lever to reverse and reset to prepare for the next shifting of the steel wire.

[0011] As a further improvement of the above technical solution, the bending mechanism includes a bending frame and a bending part connected to the bending frame, four of the bending parts are arranged in a rectangular shape, the two bending parts located in the front are respectively the first bending units, a bending clamp is connected to the position between the two first bending units on the bending frame, the two first bending units are respectively used to bend the workpiece backwards, the two bending parts located at the rear are respectively the second bending units, the stamping mechanism is located between the two second bending units, the two second bending units are respectively used to bend the workpiece toward the direction close to the stamping mechanism, two guide rods are connected to the bending frame, the two first bending units are located between the two guide rods, and the two guide rods extend obliquely upward to the front or rear of the two second bending units. There are four bending parts on the bending frame arranged in a rectangular shape, which can bend the steel wire at four different positions. When bending, the bending clamp located between the two first bending units clamps the steel wire in position, and then the two first bending units bend the steel wire backward. During the bending process, the steel wire moves on the two second guide rods and approaches the two second bending units. The two second guide rods can lift the bent part of the steel wire so that the bent part of the steel wire can fall downward into the second bending unit. Then the two second bending units bend the two ends of the steel wire again, so that the steel wire approaches the stamping mechanism, and the stamping mechanism completes the subsequent splicing and stamping connection of the two ends of the steel wire. In this way, the bending and forming of the steel wire can be completed directly, which reduces manual intervention and improves the overall production and processing efficiency.

[0012] As a further improvement of the above technical solution, the first bending unit includes a mounting frame, a bending rotation drive, an outer sleeve, a rotating drum, a bending lifting drive and a central core shaft, the mounting frame is connected to the bending frame, the outer sleeve is rotatably connected to the mounting frame along an axis extending in the up and down directions, the bending rotation drive is transmission-connected to the outer sleeve, the bending rotation drive can drive the outer sleeve to rotate, the bending lifting drive is connected to the mounting frame at a position on the bottom side of the outer sleeve, the central core shaft is connected to the bending lifting drive and extends into the outer sleeve, and the bending lifting drive can drive the central core shaft to extend upward from the outer sleeve or retract downward into the outer sleeve. When it is necessary to bend the steel wire, the bending lifting drive drives the central core shaft to extend upward out of the outer sleeve, and the steel wire is placed between the central core shaft and the rotating drum. The outer sleeve is driven by the bending rotation drive to rotate, so that the rotating drum connected to the outer sleeve rotates around the central core shaft, and the steel wire portion between the central core shaft and the rotating drum is bent. When the stamping mechanism completes the splicing and forming of the bed net frame, the bending lifting drive drives the central core shaft to retract downward into the outer sleeve. At this time, the position restriction of the rotating drum and the central core shaft on the steel wire can be released, so that the formed bed net frame can be conveniently pulled out backwards, which is conducive to improving the convenience of cutting the bed net frame.

[0013] A bed net frame production line includes a material receiving rack, a material receiving rotary drive, a material discharging rack and the above-mentioned frame bending machine, wherein the material discharging rack is located at the rear of the bending frame, and the stamping mechanism also includes two material pushing members that can move forward and backward, and the two material pushing members are respectively located on the side of two material discharging parts that are away from each other, the material receiving rotary drive is connected to the bending frame, and the material receiving rotary drive is transmission-connected to the material receiving rack, and the material receiving rotary drive can drive the material receiving rack to rotate downward to between the two first bending units or rotate upward to the material discharging rack.

[0014] This technical solution has at least the following beneficial effects: when the bending frame machine completes the bending process of the bed net frame, the two pushing parts in the stamping mechanism move backward to push the part of the bed net frame located in the stamping space backward, and then the material receiving rotary drive drives the material receiving rack to rotate upward, and the material receiving rack acts on the front side of the bed net frame to flip the bed net frame backward to the discharge rack, and the processed bed net frame is collected on the discharge rack. Then the material receiving rotary drive can drive the material receiving rack to rotate in the opposite direction, so that the material receiving rack rotates downward to reset between the two first bending units, so that the bed net frame can be automatically unloaded after the production and processing is completed, which reduces manual operation, reduces the labor intensity of workers, and further improves the overall production efficiency.

[0015] As a further improvement of the above technical solution, the front side of the material receiving rack is connected to a position between the two first bending units, and the material receiving rack is connected to a claw, and the material receiving rack can drive the claw to rotate along the axis extending in the left and right directions. When the material receiving rack rotates the formed bed net frame upward to the discharge rack, the material receiving rack drives the claw to rotate to an upward setting, at which time the front side of the bed net frame can be clamped into the claw, and the claw can be used to stably limit the bed net frame. As the material receiving rack rotates upward, the material receiving rack also drives the claw to rotate, so that the claw is always set upward, and the transfer of the material receiving rack can be stably maintained. When the material receiving rack moves to the discharge rack, the material receiving rack can drive the claw to rotate toward the discharge rack and be tilted downward, so that the bed net frame can fall downward on the discharge rack to complete the material collection. In this way, the clamping and limiting of the bed net frame by the claw can improve the stability of the bed net frame during transfer, which is conducive to automatic material feeding.

[0016] As a further improvement of the above technical solution, a reeling rack, a straightening machine and a frame strip transfer rack are arranged on the front side of the bending frame, and the frame strip transfer rack includes a frame, an angle plate, a guide assembly and a feeding mechanism. The angle plate is rotatably connected to the frame with an axis extending in the left and right directions, and the guide assembly is connected to a position on the frame below the angle plate, and a guide gap is provided in the guide assembly, and the guide gap extends downwardly in an inclined direction away from the angle plate. The feeding mechanism is connected to a position on the frame below the guide gap, and a rotatable feeding member is provided in the feeding mechanism, and a feeding slot is provided on the feeding member at a position opposite to the guide gap, and the output end of the straightening machine is opposite to one end of the angle plate, and a cutter that can move up and down is provided at the output end of the straightening machine. After being released from the unwinding rack, the steel wire enters the straightening machine for straightening. The straightened steel wire is fed from the output end of the straightening machine to one end of the angle plate. When a sufficient length of steel wire is fed in, the cutter at the output end of the straightening machine moves downward to cut the steel wire. Then the angle plate in the steel wire transfer rack transfers the input steel wire so that the steel wire is placed straight. Then the guide assembly discharges the steel wires one by one to the feeding mechanism. Finally, the feeding mechanism loads the steel wires individually. In this way, the steel wire can be automatically unwound, straightened, transferred and fed to the bending mechanism, thereby improving the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0018] Figure 1It is a three-dimensional diagram of a frame bending machine of the present invention.

[0019] Figure 2 It is a first stereoscopic view of the punching mechanism of the present invention.

[0020] Figure 3 It is a second stereoscopic view of the punching mechanism of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the first bending unit of the present invention.

[0022] Figure 5 It is a three-dimensional diagram of a bed net frame production line of the present invention.

[0023] Figure 6 yes Figure 5 A is a partial enlarged schematic diagram of .

[0024] Figure 7 It is a three-dimensional diagram of the rotating rack in the frame bar of the present invention.

[0025] Figure 8 yes Figure 7 B is a partial enlarged schematic diagram.

[0026] Fig. 9 yes Figure 7 A partial enlarged schematic diagram of C.

[0027] Fig.10 yes Figure 7 D is a partial enlarged schematic diagram.

[0028] In the attached drawings: 100-stamping mechanism, 111-positioning clamp, 112-positioning translation drive, 121-push rod, 122-rotating clamping cylinder, 131-feeding clamp, 132-vibrating plate, 133-feeding translation drive, 134-feeding lifting drive, 135-transfer clamp, 141-lower die, 1411-lower avoidance slot, 142-upper die, 1421-upper avoidance slot, 143-stamping drive, 150-push piece, 210-bending frame, 220-first bending unit, 221-mounting frame, 222-bending rotation drive, 223-outer sleeve, 224-rotating cylinder, 225-bending lifting drive, 226-central shaft, 220-second bending Unit, 230-guide rod, 310-material receiving rack, 320-discharging rack, 331-material unloading rotary drive, 332-claw, 400-frame transfer rack, 4110-frame, 4210-angle plate, 4220-connecting rod, 4230-connecting seat, 4240-linking rod, 4250-slide plate, 4260-cutter, 4310-guide gap, 4320-upper guide plate, 4330-lower guide plate, 4410-material passing part, 4411-material passing slot, 4420-transmission rod, 4421-coupling, 4430-linear drive, 4440-rack, 4450-gear, 4500-guide plate, 500-straightening machine, 600-unwinding rack. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] Reference Figure 1 A frame bending machine includes a bending mechanism and a stamping mechanism 100, wherein the bending mechanism includes at least two bending parts, at least two of the bending parts are arranged at intervals in the left-right direction, and the stamping mechanism 100 is located between the two bending parts. The stamping mechanism 100 includes a stamping part, a material shifting part, a positioning part and a feeding part. The stamping part has an openable and closable stamping space, and the positioning part has two positioning clamps 111 that can approach or move away from the stamping space. The two positioning clamps 111 are respectively located on the left and right sides of the stamping space, and the two positioning parts are provided with the material shifting parts on one side away from the stamping part. The two material shifting parts respectively have a shifting rod 121 that can move forward and backward, and the feeding part has a feeding clamp 131 that can approach or move away from the stamping space.

[0034] As can be seen from the above, during production, the frame strips of the bed net frame that need to be bent, such as steel wire, are placed in the bending mechanism, and the steel wire is bent by at least two bending parts, and then the two ends of the bent steel wire are stamped and combined by the stamping mechanism 100. Specifically, the feeding part in the stamping mechanism 100 feeds the connecting sleeve for connecting the steel wire, and the feeding clamp 131 sends the connecting sleeve into the stamping space opened by the stamping part, and then the lever 121 of the material-shifting part shifts the two ends of the steel wire in the front-to-back direction to approach the positioning clamp 111. , ensuring that the two ends of the steel wire can enter into the positioning clamps 111 of the two positioning parts, then the positioning clamps 111 in the two positioning parts are close to the stamping space, driving the two ends of the steel wire to be inserted into the left and right ends of the connecting sleeve respectively, and finally the stamping space of the stamping part is closed, and the connecting sleeve and the steel wire are stamped together, so that the bending and stamping of the bed net frame can be completed, saving the steps of transferring the bed net from different equipment, and no manual splicing and assembly is required, which reduces the labor intensity of workers and greatly improves the overall production efficiency.

[0035] The punching mechanism 100 is mainly used to press the inside of the spliced ​​steel wire into the connecting sleeve, such as Figure 2 and Figure 3As shown, in this embodiment, the stamping part includes a lower die 141, an upper die 142 and a stamping drive 143, the upper die 142 is located above the lower die 141, the upper die 142 is connected to the stamping drive 143, the stamping drive 143 can drive the upper die 142 to move up and down, and the stamping space is formed between the upper die 142 and the lower die 141, the bottom surface of the upper die 142 is provided with an upper avoidance groove 1421 extending in the front-to-back direction and an upper forming groove extending in the left-to-right direction, and the top surface of the lower die 141 is provided with The lower avoidance groove 1411 is opposite to the upper avoidance groove 1421, and the lower forming groove is opposite to the upper forming groove. In actual application, the stamping part itself has a stamping frame for fixing the whole. The lower die 141 is fixed on the stamping frame, and the upper die 142 is slidably connected to the stamping frame along the up and down directions. The stamping drive 143 is mainly used to provide driving force for the upper die 142 to move along the up and down directions. There are various structural forms, such as a cylinder, a hydraulic cylinder or an electric screw. The stamping drive 143 is connected to the stamping frame at a position above the lower die 141. Before stamping, the upper die 142 is separated from the lower die 141. At this time, the stamping space formed between the upper die 142 and the lower die 141 is in an open state. The loading clamp 131 approaches the stamping space and sends the clamped connecting sleeve into the stamping space. At this time, the upper avoidance groove 1421 on the bottom surface of the upper die 142 and the lower avoidance groove 1411 on the top surface of the lower die 141 can avoid the loading clamp 131, and the connecting sleeve is located between the upper forming groove on the bottom surface of the upper die 142 and the lower forming groove on the top surface of the lower die 141. At this time, the stamping drive 143 drives the upper die 142 to move downward. The upper avoidance groove 1421 and the lower avoidance groove 1411 form an avoidance space to prevent interference and collision with the feeding clamp 131, and the upper forming groove and the lower forming groove form a forming space, which can be used to stamp and form the two ends of the connecting sleeve, so that the steel wires entering the two ends of the connecting sleeve can be stamped and fixed in the connecting sleeve. In this way, when the steel wire and the connecting sleeve are assembled and stamped, the feeding clamp 131 can be used to keep the connecting sleeve in position, so that the two ends of the steel wire can be smoothly inserted into the connecting sleeve, and slippage can be prevented when the connecting sleeve is stamped, thereby improving the stamping quality.

[0036] The feeding part is mainly used to feed the connecting pipe into the stamping space. In this embodiment, the feeding part includes a vibration plate 132, a feeding rotation drive, a feeding translation drive 133, a feeding lifting drive 134 and a transfer clamp 135. The feeding rotation drive and the vibration plate 132 are sequentially arranged in front of the lower mold 141 at intervals. The output end of the vibration plate 132 is connected to a straight vibration guide rail, and the feeding lifting drive 134 is located beside the vibration plate 132. The feeding translation drive 133 is connected to the feeding lifting drive 134, and the feeding lifting drive 134 can drive the feeding translation drive 133 to move up and down. The transfer gripper 135 is connected to the loading translation drive 133, and the loading translation drive 133 can drive the loading lifting drive 134 to move forward and backward above the end of the straight vibration guide rail and above the loading gripper 131. The loading gripper 131 is connected to the loading rotation drive, and the loading rotation drive can drive the loading gripper 131 to enter the lower avoidance slot 1411 downward or move upward away from the lower avoidance slot 1411. In actual application, the vibration plate 132, the loading lifting drive 134 and the loading rotation drive are all connected to the stamping frame, and the loading translation drive 133 and the loading lifting drive 1 34 are used to provide a driving force for activities in a linear direction, and there are various structural forms, such as a pneumatic cylinder, a hydraulic cylinder or an electric screw, etc. The transfer gripper 135 mainly has an openable space, so as to clamp or put down the connecting pipe. Specifically, the transfer gripper 135 can adopt pneumatic fingers or electric fingers, and the pneumatic fingers or electric fingers drive the two transfer clamps to move closer or farther from each other, so as to clamp or put down the connecting pipe. In order to facilitate the transfer of the connecting pipe clamped in the transfer clamp to the loading gripper 131, the middle part of the transfer clamp can be hollowed out, and the loading gripper 131 can clamp the connecting pipe at the hollow middle part of the transfer clamp. Similarly For the loading clamp 131, the loading clamp 131 mainly has an openable and closable space, so as to clamp or put down the connecting pipe. Specifically, the loading clamp 131 can adopt pneumatic fingers or electric fingers, and the pneumatic fingers or electric fingers drive the two loading clamps to move closer or farther from each other, so as to clamp or put down the connecting pipe. For the loading rotation drive, the driving motor can be directly used to drive the loading clamp 131 to rotate, or the transmission bar can be connected by a cylinder drive, and a transmission wheel can be installed on the loading clamp 131. The transmission bar and the transmission wheel are meshed with each other. The transmission bar is driven back and forth by the cylinder, which can drive the loading clamp 131 to rotate back and forth.

[0037] In the loading part, the vibration plate 132 is used to arrange the connecting sleeves assembled to form the bed net frame, so that the connecting sleeves are arranged one by one in the straight vibration guide rail, and then the loading translation drive 133 and the loading lifting drive 134 drive the transfer clamp 135 to move horizontally to the top of the straight vibration guide rail, and move down to the end of the straight vibration guide rail, and the transfer clamp 135 clamps a connecting sleeve located at the end of the straight vibration guide rail, and then the transfer clamp 135 moves up to take out the connecting sleeve, and then moves to the top of the loading clamp 131, and moves down to put the connecting sleeve into the loading clamp 131. At this time, the loading rotation drive can drive the loading clamp 131 to rotate, and drive the loading clamp 131 to rotate into the lower avoidance groove 1411. The transfer clamp 135 can return to reset and prepare to take out the next connecting sleeve from the straight vibration guide rail. After waiting for the connection sleeve to be stamped and removed from the finished product, the loading clamp 131 can also be driven by the loading rotation drive to rotate in the opposite direction and reset.

[0038] The positioning part is used to pull the two ends of the steel wire into the stamping space. In the present embodiment, the positioning part includes a positioning translation drive 112, which is arranged in front of the lower die 141. The left and right sides of the positioning translation drive 112 respectively have two movable ends that can move left and right. The two positioning clamps 111 are respectively connected to the two movable ends of the positioning translation drive 112. In practical applications, the positioning translation drive 112 can adopt a cylinder, a hydraulic cylinder or an electric screw with two output ends, and the positioning clamps 111 are mainly used to grab the steel wire. The positioning clamps 111 can adopt pneumatic fingers or electric fingers, which drive the two positioning clamps to move closer to or away from each other, thereby clamping or putting down the steel wire. In order to facilitate the feeding of the steel wire between the two positioning clamps, the rear ends of the two positioning clamps are inclined in the direction of moving away from each other. Before work, the movable ends on both sides of the positioning translation drive 112 are in a state of being far away from each other. At this time, the two positioning clamps 111 are respectively located at positions far away from the stamping space. After the two positioning clamps 111 clamp the two ends of the steel wire, the two movable ends of the positioning translation drive 112 drive the two positioning clamps 111 to approach each other, and drive the two ends of the steel wire to be inserted from the left and right ends of the connecting sleeve respectively, so that the mutual assembly of the steel wire and the connecting sleeve can be realized.

[0039] After the bending part bends the steel wire, there may be a situation where the bent steel wire cannot smoothly enter the positioning clamp 111. In order to ensure that the steel wire can enter the positioning clamp 111, it is necessary to use the material-push part to push the steel wire into place. In this embodiment, the material-push part includes a rotary clamping cylinder 122, and the push rod 121 is connected to the rotary clamping cylinder 122. The rotary clamping cylinder 122 can drive the push rod 121 to rotate along an axis extending in the forward and backward directions and to move forward and backward. In actual applications, the rotary clamping cylinder 122 is also called a downward-pressing angle cylinder, which has multiple degrees of freedom of movement, and can provide both a driving force for rotation and a driving force for reciprocating movement in a linear direction. After the feeding clamp 131 clamps the wire, the rotating clamp cylinder 122 drives the lever 121 to reverse and reset, so as to prepare for the next shifting of the wire.

[0040] When bending the steel wire to form the frame of the bed net, it is generally necessary to bend the steel wire four times. Therefore, in this embodiment, the bending mechanism includes a bending frame 210 and a bending part connected to the bending frame 210. The bending parts are arranged in a rectangular shape and have four parts. The two bending parts located in the front are respectively the first bending units 220. A bending clamp is connected to the position between the two first bending units 220 on the bending frame 210. The two first bending units 220 are respectively used to bend the workpiece backwards. The two bending parts located in the rear are respectively the second bending units 220. The stamping mechanism 100 is located between the two second bending units 220. The two second bending units 220 are respectively used to bend the workpiece in a direction close to the stamping mechanism 100. Two guide rods 230 are connected to the bending frame 210. The two first bending units 220 are located between the two guide rods 230. The two guide rods 230 extend obliquely upward to the front or rear of the two second bending units 220. There are four bending parts on the bending frame 210 arranged in a rectangular shape, and the steel wire can be bent at four different positions. When bending, the bending clamp located between the two first bending units 220 clamps the steel wire in place, and then the two first bending units 220 bend the steel wire backward. During the bending process, the steel wire moves on the two second guide rods 230 and approaches the two second bending units 220. The two second guide rods 230 can lift the bent part of the steel wire so that the bent part of the steel wire can fall downward into the second bending units 220. Then the two second bending units 220 bend the two ends of the steel wire again, so that the steel wire approaches the stamping mechanism 100, and the stamping mechanism 100 completes the subsequent splicing and stamping connection of the two ends of the steel wire. In this way, the bending and forming of the steel wire can be completed directly, reducing manual intervention and improving the overall production and processing efficiency.

[0041] The first bending unit 220 is mainly used to bend the two ends of the steel wire backward. In actual use, the two first bending units 220 are symmetrically arranged to perform backward bending processing on the two ends of the steel wire respectively. Figure 4As shown, the first bending unit 220 includes a mounting frame 221, a bending rotation drive 222, an outer sleeve 223, a rotating drum 224, a bending lifting drive 225 and a central shaft 226. The mounting frame 221 is connected to the bending frame 210, and the outer sleeve 223 is rotatably connected to the mounting frame 221 along an axis extending in the vertical direction. The bending rotation drive 222 is transmission-connected to the outer sleeve 223, and the bending rotation drive 222 can drive the outer sleeve 223 to rotate. The bending lifting drive 225 is connected to the mounting frame 221 at a position located at the bottom side of the outer sleeve 223, and the central shaft 226 is connected to the bending lifting drive 225 and extends into the outer sleeve 223. The drive 225 can drive the central shaft 226 to extend upward from the outer sleeve 223 or retract downward into the outer sleeve 223. In actual applications, the bending and lifting drive 225 is mainly used to provide a driving force for the central shaft 226 to move in the up and down directions. It has various structural forms, such as a cylinder, a hydraulic cylinder or an electric screw, and the bending and rotating drive 222 is used to provide a rotating driving force for the outer sleeve 223. It can be directly driven by a rotating cylinder or a driving motor. In this embodiment, a cylinder, a hydraulic cylinder or an electric screw can be additionally installed to drive the transmission bar to move, and a transmission wheel is also connected to the outer sleeve 223. The transmission teeth and the transmission wheel are provided with teeth and mesh with each other. By driving the transmission bar to move back and forth, the outer sleeve 223 is driven to rotate.

[0042] In the first bending unit 220, when the steel wire needs to be bent, the bending lifting drive 225 drives the central shaft 226 to extend upward out of the outer sleeve 223, and the steel wire is placed between the central shaft 226 and the rotating drum 224. The bending rotation drive 222 drives the outer sleeve 223 to rotate, so that the rotating drum 224 connected to the outer sleeve 223 rotates around the central shaft 226, and the steel wire portion between the central shaft 226 and the rotating drum 224 is bent. When the stamping mechanism 100 completes the splicing and forming of the bed net frame, the bending lifting drive 225 drives the central shaft 226 to retract downward into the outer sleeve 223. At this time, the position restriction of the rotating drum 224 and the central shaft 226 on the steel wire can be released, so that the formed bed net frame can be conveniently pulled out backwards, which is conducive to improving the convenience of cutting the bed net frame.

[0043] The second bending unit 220 has a similar structure to the first bending unit 220. However, in the second bending unit 220, when the formed bed net frame needs to be taken out, since the central shaft 226 and the rotating shaft in the second bending unit 220 will not interfere with the backward displacement of the bed net frame, there is no need to install an additional drive in the second bending unit 220 to drive the central shaft 226 to move up and down. The central shaft 226 can remain in a state of extending out of the outer sleeve 223.

[0044] like Figure 5 As shown, a bed net frame production line includes a material receiving rack 310, a material receiving rotary drive, a material discharging rack 320 and the above-mentioned frame bending machine, wherein the material discharging rack 320 is located at the rear of the bending frame 210, and the stamping mechanism 100 also includes two material pushing members 150 which can move forward and backward, and the two material pushing members 150 are respectively located on the side where the two material discharging parts are away from each other, and the material receiving rotary drive is connected to the bending frame 210, and the material receiving rotary drive is transmission-connected to the material receiving rack 310, and the material receiving rotary drive can drive the material receiving rack 310 to rotate downward to between the two first bending units 220 or rotate upward to the material discharging rack 320. In actual applications, the material receiving rotary drive is mainly used to provide a driving force for the material receiving rack 310 to rotate, and it can adopt a driving member such as a driving motor or a rotating cylinder. In order to improve the rotation stability of the material receiving rack 310, the material receiving rotation drive can adopt a cylinder, an electric screw rod or a hydraulic cylinder. The fixed end of the cylinder, electric screw rod or hydraulic cylinder is rotatably connected to the bottom side of the stamping rack, and the rear side of the material receiving rack 310 is bent downward, and the movable end of the cylinder, electric screw rod or hydraulic cylinder is rotatably connected to the downward bent position of the rear side of the material receiving rack 310. When the material receiving rack 310 is located between the two first bending units 220, the cylinder, electric screw rod or hydraulic cylinder is in an extended state. When the material receiving rack 310 needs to be rotated upward and close to the discharge rack 320, the cylinder, electric screw rod or hydraulic cylinder gradually contracts. As for the pushing piece 150, it is mainly used to push the steel wire backward. A plate-shaped or block-shaped structural member can be adopted. A cylinder, electric screw rod or hydraulic cylinder is connected to the stamping rack to drive the pushing piece 150 to move back and forth.

[0045] In this bed net frame production line, when the bending frame machine completes the bending process of the bed net frame, the two pushers 150 in the stamping mechanism 100 move backward to push the part of the bed net frame located in the stamping space backward, and then the material receiving rotary drive drives the material receiving rack 310 to rotate upward, and the material receiving rack 310 acts on the front side of the bed net frame to flip the bed net frame backward to the discharge rack 320, and the processed bed net frame is collected on the discharge rack 320. Then the material receiving rotary drive can drive the material receiving rack 310 to rotate in the opposite direction, so that the material receiving rack 310 rotates downward to reset between the two first bending units 220, so that the bed net frame can be automatically unloaded after the production and processing is completed, which reduces manual operation, reduces the labor intensity of workers, and further improves the overall production efficiency.

[0046] In the above embodiment, a structure for clamping and positioning the bed net frame can be directly set on the front side of the material receiving rack 310, and in order to further improve the flexibility during use, such as Figure 6As shown, in the present embodiment, a material unloading rotary drive 331 is connected to the front side of the material receiving rack 310 between the two first bending units 220, and the material unloading rotary drive 331 is connected to a clamping claw 332. The material unloading rotary drive 331 can drive the clamping claw 332 to rotate along an axis extending in the left-right direction. In practical applications, the material unloading rotary drive 331 is mainly used to provide a rotational driving force for the clamping claw 332, and its structural forms include a variety of forms, such as a rotary cylinder or a driving motor. In order to improve the clamping and positioning effect of the material receiving rack 310, a plurality of rotary cylinders can be arranged at intervals along the left-right direction, which can act on the material receiving rack 310 at different positions to improve stability during use. When the material receiving rack 310 rotates the formed bed net frame upward to the discharge rack 320, the material unloading rotary drive 331 drives the claw 332 to rotate to an upward setting. At this time, the front side of the bed net frame can be clamped into the claw 332, and the claw 332 can be used to stably limit the bed net frame. As the material receiving rack 310 rotates upward, the material unloading rotary drive 331 also drives the claw 332 to rotate, so that the claw 332 always remains in an upward setting, which can stably maintain the transfer of the material receiving rack 310. When the material receiving rack 310 moves to the discharge rack 320, the material unloading rotary drive 331 can drive the claw 332 to rotate toward the discharge rack 320 and tilt it downward, so that the bed net frame can fall downward onto the discharge rack 320 to complete the unloading and collection. In this way, the clamping and limiting of the bed net frame by the claw 332 can improve the stability of the bed net frame during transfer, which is conducive to automatic unloading.

[0047] In order to further improve the overall production efficiency, in this embodiment, the front side of the bending frame 210 is provided with an unwinding frame 600, a straightening machine 500 and a frame strip transfer frame 400. Figure 7As shown, the rotating frame 400 in the frame bar includes a frame 4110, an angle plate 4210, a guide assembly and a feeding mechanism, the angle plate 4210 is rotatably connected to the frame 4110 with an axis extending in the left-right direction, the guide assembly is connected to the frame 4110 at a position below the angle plate 4210, a guide gap 4310 is provided in the guide assembly, and the guide gap 4310 extends downwardly in an inclined direction away from the angle plate 4210, the feeding mechanism is connected to the frame 4110 at a position below the guide gap 4310, a rotatable feeding member 4410 is provided in the feeding mechanism, and a feeding slot 4411 is provided at the position of the feeding member 4410 facing the guide gap 4310, the output end of the straightening machine 500 is facing one end of the angle plate 4210, and a cutter 4260 that can move up and down is provided at the output end of the straightening machine 500. After being unwound from the unwinding rack 600, the steel wire enters the straightening machine 500 for straightening. The straightened steel wire is fed from the output end of the straightening machine 500 to one end of the angle plate 4210. When a sufficient length of steel wire is fed in, the cutter 4260 at the output end of the straightening machine 500 moves downward to cut the steel wire. Then, the angle plate 4210 in the steel wire transfer rack transfers the input steel wire so that the steel wire is placed straight. Then, the guide assembly discharges the steel wires one by one to the feeding mechanism. Finally, the feeding mechanism feeds the steel wires individually. In this way, the steel wire can be automatically unwound, straightened, transferred and fed to the bending mechanism, thereby improving the overall processing efficiency.

[0048] The supporting mechanism has a structure that can drive the angle plate 4210 to rotate. For example, the supporting mechanism includes a driving motor, which directly drives the angle plate 4210 to drive the angle plate 4210 to rotate forward and reverse. In this embodiment, Fig. 9As shown, the supporting mechanism includes a connecting rod 4220, a connecting seat 4230, a linkage rod 4240, a slide plate 4250 and a lifting device. The lifting device is transmission-connected to the slide plate 4250, and the lifting device can drive the slide plate 4250 to move up and down. The connecting rod 4220 is connected to the frame 4110, and a plurality of connecting seats 4230 are connected to the angle plate 4210 at intervals along its length direction. The plurality of connecting seats 4230 are respectively rotatably connected to the outside of the connecting rod 4220, and one end of the linkage rod 4240 is rotatably connected to the end of one of the connecting seats 4230. In actual application, one end of the linkage rod 4240 is rotatably connected to a connecting seat 4230 closest to the linkage rod 4240, and the other end of the linkage rod 4240 is rotatably connected to the slide plate 4250. The angle plate 4210 is rotatably connected to the connecting rod 4220 through multiple connecting seats 4230, so as to ensure that the angle plate 4210 can be stably connected to the frame 4110 even when the length is long. When the input steel wire needs to be supported, the angle groove on the angle plate 4210 is set upward. When the input steel wire needs to be transferred to the feeding mechanism, the lifting device drives the slide plate 4250 to slide upward, and the connecting rod 4240 on the slide plate 4250 transmits power to a connecting seat 4230, so that the connecting seat 4230 rotates around the connecting rod 4220, thereby driving the angle plate 4210 to rotate, so that the angle groove on the angle plate 4210 rotates downward to face the guide gap 4310, and the steel wire is sent into the guide gap 4310. After completion, the lifting device drives the slide plate 4250 to slide downward, and the connecting rod 4240 on the slide plate 4250 drives the angle plate 4210 to rotate in the opposite direction around the connecting rod 4220 through the connecting seat 4230 to reset.

[0049] The lifting device is mainly used to provide a driving force for the upward and downward movement of the slide plate 4250. The lifting device is installed and fixed on the frame 4110 or the fixed structure of the peripheral device. There are various structural forms of the lifting device, such as directly connected to the slide plate 4250 through a cylinder, a hydraulic cylinder or an electric screw, so as to drive the slide plate 4250 to move up and down. In this embodiment, the lifting device includes a first motor, an output wheel and an output rod. The first motor is installed and fixed on the frame 4110 or the fixed structure of the peripheral device. The first motor drives the output wheel, one end of the output rod is rotatably connected to the eccentric position of the output wheel, and the other end of the output rod is rotatably connected to the slide plate 4250, and the slide plate 4250 is connected to the frame 4110 or the fixed structure of the peripheral device by sliding up and down. The cutter 4260 can be directly connected to the bottom side of the slide plate 4250. When working, the first motor drives the output wheel to rotate, and the output rod on the output wheel drives the slide plate 4250 to slide up or down.

[0050] The guide assembly is mainly used to form a guide gap 4310 for limiting the position of the steel wire, so that the steel wires can only pass through the guide gap 4310 one by one. Figure 8As shown, in this embodiment, the guide assembly includes an upper guide plate 4320 and a lower guide plate 4330 connected to the frame 4110 at intervals along the up-down direction, and the guide gap 4310 is formed between the upper guide plate 4320 and the lower guide plate 4330. In actual application, the bottom side of the upper guide plate 4320 extends obliquely, and similarly, the top side of the lower guide plate 4330 also extends obliquely, so that the guide gap 4310 can be formed between the bottom side of the upper guide plate 4320 and the top side of the lower guide plate 4330. The guide gap 4310 is formed in the interval space between the upper guide plate 4320 and the lower guide plate 4330, and the steel wire falling downward from the angle plate 4210 enters the guide gap 4310, and its movable position is limited by the upper guide plate 4320 and the lower guide plate 4330, so that the materials are discharged one by one into the feeding mechanism.

[0051] When the length of the steel wire to be transferred is long, in order to limit the steel wire from multiple positions, in this embodiment, the guide assembly is provided with multiple intervals along the length direction of the angle plate 4210. The guide gaps 4310 in the multiple guide assemblies can limit the steel wire from different positions, which can improve the stability of the steel wire when it falls from the angle plate 4210, so that the steel wire is not easily offset and shaken.

[0052] The material passing mechanism has a structure that can drive the material passing piece 4410 to rotate. In the above embodiment, the material passing piece 4410 can be a structural member extending along the length direction of the angle plate 4210, so as to increase the area for supporting and limiting the steel wire. In the present embodiment, the material passing mechanism includes a rotating device and a transmission rod 4420. The transmission rod 4420 is rotatably connected to the frame 4110. The transmission rod 4420 extends along the length direction of the angle plate 4210. The rotating device is transmission-connected to the transmission rod 4420. The rotating device can drive the transmission rod 4420 to rotate. A plurality of material passing pieces 4410 are connected to the transmission rod 4420 at intervals. There are multiple feeding pieces 4410 arranged at intervals, and the feeding grooves 4411 on the multiple feeding pieces 4410 can jointly support and limit the steel wire from different positions, thereby improving the stability of the steel wire entering the feeding mechanism. When the steel wire enters the feeding grooves 4411 of the multiple feeding pieces 4410, the rotating device drives the transmission rod 4420 to rotate, so that the multiple feeding pieces 4410 on the transmission rod 4420 also rotate with it, and the steel wire is rotated downward to be fed to the next peripheral workstation. After completion, the rotating device drives the transmission rod 4420 to rotate in the opposite direction, so that the feeding grooves 4411 on the multiple feeding pieces 4410 are reset to be directly opposite to the guide gap 4310.

[0053] The rotating device is mainly used to provide a driving force for the transmission rod 4420 to rotate, and can be directly driven by a driving motor, such as Fig.10As shown, in this embodiment, the rotating device includes a linear drive 4430, a rack 4440 and a gear 4450. The linear drive 4430 is connected to the frame 4110. The linear drive 4430 can use a driving member such as a cylinder, a hydraulic cylinder or an electric screw. The rack 4440 is connected to the linear drive 4430, and the gear 4450 is connected to the transmission rod 4420. The gear 4450 and the rack 4440 are meshed with each other. When it is necessary to drive the transmission rod 4420 to rotate, the linear drive 4430 drives the rack 4440 to move in a linear direction. Since the rack 4440 and the gear 4450 are meshed with each other, the transmission rod 4420 can be driven to rotate by the gear 4450. When it is necessary to drive the transmission rod 4420 to reverse, the linear drive 4430 drives the rack 4440 to move in the opposite direction in a linear direction. In this way, the linear drive 4430 is used to drive the transmission rod 4420 to rotate through the rack 4440 and the gear 4450, so as to increase the torque that drives the transmission rod 4420 to rotate, which is particularly suitable for the case where the transmission rod 4420 is longer.

[0054] When the length of the steel wire to be transferred is short, the angle length of the steel wire to be supported is short, and the rotating device directly provides the driving force for rotation from one end of the transmission rod 4420. When the length of the steel wire is long, the transmission rod 4420 that needs to drive the angle plate 4210 to rotate also needs to be longer. Therefore, in this embodiment, two transmission rods 4420 are provided along the length direction, and a coupling 4421 is connected between the two transmission rods 4420, and the two ends of the two transmission rods 4420 are provided with the rotating device. At this time, two transmission rods 4420 are selected for power transmission, and the ends of the two transmission rods 4420 that are close to each other are connected to each other through the coupling 4421, and the ends of the two transmission rods 4420 that are away from each other are provided with the rotating device. The two rotating devices can provide power from the ends of the two transmission rods 4420 that are away from each other, and drive the two transmission rods 4420 to rotate at the same time, thereby ensuring the transfer of the long steel wire.

[0055] In order to better guide the falling direction of the steel wire dropped from the material passing member 4410, in this embodiment, a guide plate 4500 is connected to the frame 4110, the top surface of the guide plate 4500 is flush with the bottom end of the guide gap 4310, and the side of the guide plate 4500 away from the guide gap 4310 is bent downward. After the steel wire falls from the guide gap 4310 to the material passing slot 4411 of the material passing member 4410, the guide plate 4500 can also support the steel wire. When the steel wire needs to be rotated downward to the next station, the steel wire can fall downward along the guidance of the guide plate 4500, thereby improving the smoothness and accuracy of the steel wire transfer. In actual application, the curvature formed by the downward bending of the guide plate 4500 is consistent with the curvature formed when the steel wire follows the rotation of the material passing member 4410, so that the guide plate 4500 can continue to support and guide the steel wire, and the guide plate 4500 extends downward after bending to further guide the natural fall of the steel wire. The guide plate 4500 can also be arranged on the frame 4110 along the length direction of the angle plate 4210 at intervals, so as to support and guide the steel wire at different positions.

[0056] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A frame bending machine, characterized in that: include: A bending mechanism, comprising at least two bending parts, wherein the at least two bending parts are arranged at intervals along the left-right direction; A stamping mechanism (100) is located between the two bending parts. The stamping mechanism (100) comprises a stamping part, a material shifting part, a positioning part and a feeding part. The stamping part has an openable and closable stamping space. The positioning part has two positioning clamps (111) that can be close to or away from the stamping space. The two positioning clamps (111) are respectively located on the left and right sides of the stamping space. The material shifting parts are provided on one side of the two positioning parts away from the stamping part. The two material shifting parts respectively have a shifting rod (121) that can move forward and backward. The feeding part has a feeding clamp (131) that can be close to or away from the stamping space.

2. A frame bending machine according to claim 1, characterized in that: The stamping part comprises a lower die (141), an upper die (142) and a stamping drive (143); the upper die (142) is located above the lower die (141); the upper die (142) is connected to the stamping drive (143); the stamping drive (143) can drive the upper die (142) to move up and down; a stamping space is formed between the upper die (142) and the lower die (141); the bottom surface of the upper die (142) is provided with an upper avoidance groove (1421) extending in the front-to-back direction and an upper forming groove extending in the left-to-right direction; the top surface of the lower die (141) is provided with a lower avoidance groove (1411) opposite to the upper avoidance groove (1421) and a lower forming groove opposite to the upper forming groove.

3. A frame bending machine according to claim 2, characterized in that: The feeding part comprises a vibration plate (132), a feeding rotation drive, a feeding translation drive (133), a feeding lifting drive (134) and a transfer clamp (135), wherein the feeding rotation drive and the vibration plate (132) are sequentially arranged in front of the lower mold (141) at intervals, the output end of the vibration plate (132) is connected to a straight vibration guide rail, the feeding lifting drive (134) is located beside the vibration plate (132), the feeding translation drive (133) is connected to the feeding lifting drive (134), and the feeding lifting drive (134) can be The loading translation drive (133) is driven to move up and down, and the transfer clamp (135) is connected to the loading translation drive (133). The loading translation drive (133) can drive the loading lifting drive (134) to move forward and backward above the end of the straight vibration guide rail and above the loading clamp (131). The loading clamp (131) is connected to the loading rotation drive, and the loading rotation drive can drive the loading clamp (131) downward into the lower avoidance groove (1411) or upward away from the lower avoidance groove (1411).

4. A frame bending machine according to claim 2, characterized in that: The positioning part comprises a positioning translation drive (112), wherein the positioning translation drive (112) is arranged in front of the lower mold (141), and the left and right sides of the positioning translation drive (112) respectively have two movable ends that can move left and right, and the two positioning clamps (111) are respectively connected to the two movable ends of the positioning translation drive (112).

5. The frame bending machine according to claim 1, characterized in that: The material shifting part comprises a rotary clamping cylinder (122), the shifting rod (121) is connected to the rotary clamping cylinder (122), and the rotary clamping cylinder (122) can drive the shifting rod (121) to rotate and move forward and backward along an axis extending in the forward and backward directions.

6. A frame bending machine according to claim 1, characterized in that: The bending mechanism comprises a bending frame (210), a bending portion connected to the bending frame (210), four of the bending portions being arranged in a rectangular shape, the two bending portions located at the front being respectively first bending units (220), a bending gripper being connected to a position between the two first bending units (220) on the bending frame (210), the two first bending units (220) being respectively used to bend the workpiece backwards, the two bending portions located at the rear being respectively second bending units (220), The stamping mechanism (100) is located between the two second bending units (220), the two second bending units (220) are respectively used to bend the workpiece in a direction close to the stamping mechanism (100), the bending frame (210) is connected to two guide rods (230), the two first bending units (220) are located between the two guide rods (230), and the two guide rods (230) are respectively extended obliquely upward to the front or rear of the two second bending units (220).

7. A frame bending machine according to claim 6, characterized in that: The first bending unit (220) comprises a mounting frame (221), a bending rotation drive (222), an outer sleeve (223), a rotating drum (224), a bending lifting drive (225) and a central shaft (226); the mounting frame (221) is connected to the bending frame (210); the outer sleeve (223) is rotatably connected to the mounting frame (221) about an axis extending in an upward and downward direction; the bending rotation drive (222) is transmission-connected to the outer sleeve (223); The bending rotation drive (222) can drive the outer sleeve (223) to rotate, the bending lifting drive (225) is connected to the mounting frame (221) at a position located on the bottom side of the outer sleeve (223), the central shaft (226) is connected to the bending lifting drive (225) and extends into the outer sleeve (223), and the bending lifting drive (225) can drive the central shaft (226) to extend upward from the outer sleeve (223) or to retract downward into the outer sleeve (223).

8. A bed net frame production line, characterized by: It includes a material receiving rack (310), a material receiving rotary drive, a material discharging rack (320) and a frame bending machine as described in claim 6 or 7, wherein the material discharging rack (320) is located behind the bending rack (210), and the stamping mechanism (100) also includes two material pushing members (150) that can move forward and backward, and the two material pushing members (150) are respectively located on the side away from each other of the two material discharging parts, the material receiving rotary drive is connected to the bending rack (210), and the material receiving rotary drive is transmission-connected to the material receiving rack (310), and the material receiving rotary drive can drive the material receiving rack (310) to rotate downward to between the two first bending units (220) or rotate upward to the material discharging rack (320).

9. A bed net frame production line according to claim 8, characterized in that: The front side of the material receiving rack (310) is connected to a material unloading rotary drive (331) located between the two first bending units (220), and the material unloading rotary drive (331) is connected to a clamping claw (332). The material unloading rotary drive (331) can drive the clamping claw (332) to rotate along an axis extending in the left-right direction.

10. The bed net frame production line according to claim 8, characterized in that: The front side of the bending frame (210) is provided with an unwinding frame (600), a straightening machine (500) and a frame strip transfer frame (400), the frame strip transfer frame (400) comprises a frame (4110), an angle plate (4210), a guide assembly and a material transfer mechanism, the angle plate (4210) is rotatably connected to the frame (4110) by an axis extending in the left-right direction, the guide assembly is connected to a position on the frame (4110) below the angle plate (4210), and a guide gap (4310) is provided in the guide assembly, and the guide gap (4310) is 0) extends obliquely downward in a direction away from the angle plate (4210), the feeding mechanism is connected to a position on the frame (4110) below the guide gap (4310), a rotatable feeding member (4410) is provided in the feeding mechanism, a feeding slot (4411) is provided on the feeding member (4410) at a position opposite to the guide gap (4310), the output end of the straightening machine (500) is opposite to one end of the angle plate (4210), and a cutter (4260) that can move up and down is provided on the output end of the straightening machine (500).

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