An automatic bending device for iron tower pipe fittings

Abstract

The present invention relates to the technical field of bending equipment, and discloses an automatic bending device for iron tower pipe fittings, including a device frame body. An automatic feeding mechanism is provided on one side of the device frame body, and an adaptive bending mechanism is provided on the upper part of the device frame body. A material guiding mechanism is provided between the automatic feeding mechanism and the adaptive bending mechanism. The adaptive bending mechanism includes a fixed-wheel assembly rotatably connected to the device frame body with relatively fixed positions and a pulley assembly slidably arranged on the device frame body. The wheel width spacing between the fixed-wheel assembly and the pulley assembly is adjustable. It also includes a linkage mechanism for driving the fixed-wheel assembly and the pulley assembly to act, and a swinging mechanism connected to the linkage mechanism for driving the pulley assembly to swing. The beneficial effects of the present invention are as follows: automatic feeding, without excessive manual participation, and pipe fittings of different batches can be bent adaptively, without the need to replace the large wheels and small wheels in the prior art, with a high degree of automation and improved production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe bending equipment, and specifically, to an automatic bending device for iron tower pipe fittings. Background Art

[0002] Iron tower pipe fittings are important components for constructing iron towers, which are prepared by bending straight pipes at a certain angle. Generally, a bending machine is used. The bending machines in the prior art generally include an operation platform, a large wheel and a small wheel installed on the operation platform. By inserting the pipe fitting between the large wheel and the small wheel and rotating the small wheel, the small wheel rotates around the large wheel to form the bending of the pipe fitting. However, for this operation, it is necessary to manually insert the pipe fitting between the large wheel and the small wheel, which is time-consuming and laborious. Moreover, according to pipes with different diameters, it is necessary to replace the large wheel and the small wheel with corresponding specifications, resulting in low production efficiency. Summary of the Invention

[0003] The present invention provides an automatic bending device for iron tower pipe fittings, which can automatically feed materials, requires little manual participation, and can adapt to different batches of pipe fittings for bending without replacing the large wheel and the small wheel in the prior art. It has a high degree of automation and improves production efficiency.

[0004] Therefore, the technical solution adopted by the present invention is as follows: an automatic bending device for iron tower pipe fittings, including a device frame body. An automatic feeding mechanism is provided on one side of the device frame body. An adaptive bending mechanism is provided on the upper part of the device frame body. A material guiding mechanism is provided between the automatic feeding mechanism and the adaptive bending mechanism. The adaptive bending mechanism includes a fixed-wheel assembly rotatably connected to the device frame body with relatively fixed positions and a pulley assembly slidably arranged on the device frame body. The wheel width spacing between the fixed-wheel assembly and the pulley assembly is adjustable. It further includes a linkage mechanism for driving the fixed-wheel assembly and the pulley assembly to act, and a swing mechanism connected to the linkage mechanism for driving the pulley assembly to swing.

[0005] By adopting the above technical solution: The automatic feeding mechanism can temporarily store pipe fittings and feed a single pipe fitting. The pipe fitting can enter the adaptive bending mechanism through the material guiding mechanism for bending. Specifically, the linkage mechanism can drive the pulley assembly to move away from the fixed-wheel assembly first, so that a gap is formed between the fixed-wheel assembly and the pulley assembly. The pipe fitting at the material guiding mechanism can enter between the fixed-wheel assembly and the pulley assembly. Then the pulley assembly returns to its position to clamp the pipe fitting with the fixed-wheel assembly. When the pipe fitting is between the fixed-wheel assembly and the pulley assembly, the swing mechanism drives the pulley assembly to rotate around the fixed-wheel assembly, so that the pipe fitting is bent. It has a high degree of automation. It only needs to manually feed multiple pipe fittings to the automatic feeding mechanism, which improves production efficiency and can adapt to pipe fittings with different diameters.

[0006] Preferably, the device frame body includes a support frame and an operation platform arranged on the top of the support frame. The fixed wheel assembly, the pulley assembly and the material guiding mechanism are all arranged on the upper side of the operation platform, and the linkage mechanism is arranged on the lower side of the operation platform.

[0007] By adopting the above technical solution: The support frame is used to support the operation platform. The operation platform is the main structure for pipe bending. The fixed wheel assembly, the pulley assembly and the material guiding mechanism are all installed on its upper part, which can realize automatic feeding, adaptively clamp and bend pipes with different diameters, and the driving of the linkage mechanism realizes the linkage of pipe feeding and bending.

[0008] Preferably, it further includes a blanking mechanism arranged on the operation platform for automatically pushing the bent pipe to be blanked.

[0009] By adopting the above technical solution: After the pipe is bent, the blanking mechanism can automatically push the pipe out of the operation platform to prepare for the bending of the next pipe, without much manual participation.

[0010] Preferably, the blanking mechanism includes a pushing power member arranged on the operation platform, and the pushing power member is connected with a pushing plate.

[0011] By adopting the above technical solution: When the pipe is bent, through the pushing of the pushing power member, the pushing plate can push the pipe out of the operation platform. A receiving frame can be arranged below the operation platform to receive the bent pipe, realizing automatic blanking.

[0012] Preferably, the automatic feeding mechanism includes a material holding frame arranged on one side of the operation platform. The bottom of the material holding frame is higher on the side far from the operation platform than on the side close to the operation platform. At the connection between the material holding frame and the support frame, there is a feeding component for lifting a single pipe to the material guiding mechanism.

[0013] By adopting the above technical solution: Stack a plurality of pipes inside the material holding frame. Through the feeding component, the single automatic feeding of the pipes can be realized, that is, one pipe is fed for bending at a time, without manually feeding each pipe one by one, saving a lot of manpower.

[0014] Preferably, the feeding component includes a lifting power member arranged on the support frame. The upper end of the lifting power member is provided with a material blocking plate. The upper part of the material blocking plate is provided with a lifting plate. The side of the lifting plate far from the support frame is provided with a circular arc-shaped blanking part.

[0015] By adopting the above technical solution: the jacking power component can push the jacking plate to rise. Through the blanking part, one pipe fitting can be pushed to rise as much as possible at a time. The redundant pipe fittings can slide out of the jacking plate through the blanking part. At the same time, the material blocking plate can prevent the bottom pipe fittings from piling up and hindering the fall of the jacking plate, preparing for the next feeding.

[0016] Preferably, the feeding guide mechanism includes a feeding guide plate arranged on the operation platform and inclined towards the fixed wheel assembly and the pulley assembly. The feeding guide plate is provided with an intermittent feeding assembly. The intermittent feeding assembly includes a telescopic power component arranged between the operation platform and the feeding guide plate. A fork is connected to the telescopic power component. The feeding guide plate is provided with a plurality of through holes for passing through the fork.

[0017] By adopting the above technical solution: when the pipe fitting is jacked up to the height of the feeding guide plate, due to the inclined arrangement of the feeding guide plate, the key can be fed by rolling. By setting the intermittent feeding assembly, when feeding pipe fittings with a smaller diameter, the jacking plate may jack up more than one pipe fitting. At this time, through the intermittent telescopic movement of the telescopic power component, the fork intermittently blocks the pipe fittings, so that only one pipe fitting is released at a time, realizing the single feeding of the pipe fittings.

[0018] Preferably, the fixed wheel assembly includes a first lower grooved pulley rotatably arranged on the operation platform through a rotating shaft. A first upper grooved pulley is slidably arranged on the upper part of the first lower grooved pulley. The first upper grooved pulley is connected with a first square rod. The first square rod is arranged in the axle of the first lower grooved pulley. A first limiting block with a square through hole is arranged in the axle. After passing through the first limiting block, the first square rod is connected with a first round rod;

[0019] The pulley assembly includes a second lower grooved pulley slidably arranged on the operation platform. A second upper grooved pulley is slidably arranged on the upper part of the second lower grooved pulley. The second upper grooved pulley is connected with a second square rod. The second square rod is arranged in the axle of the second lower grooved pulley. A second limiting block with a square through hole is arranged in the axle. After passing through the first limiting block, the second square rod is connected with a second round rod;

[0020] A material blocking plate is arranged on the first upper grooved pulley, and a blocking plate is arranged on the operation platform; both the material blocking plate and the blocking plate are stretchable;

[0021] A straight through groove and an arc through groove are arranged on the operation platform. The straight through groove and the arc through groove are communicated. In the initial state, the second round rod is in the straight through groove;

[0022] The first round rod and the second round rod pass through the operation platform and are connected with a linkage mechanism.

[0023] By adopting the above technical solution: The first upper sheave and the first lower sheave form an integral sheave, and the second upper sheave and the second lower sheave form an integral sheave. The groove pitch of the two integral sheaves is adjustable through a linkage mechanism to adapt to pipe fittings of different diameters. Specifically, the first upper sheave can move relative to the first lower sheave, so that the distance between the first upper sheave and the first lower sheave can be changed. Similarly, the second upper sheave can synchronize with the movement of the first upper sheave, and their synchronous movement can adapt to pipe fittings of different diameters. The cooperation between the two square rods and the limit block enables the upper sheave and the lower sheave to better hold the pipe fitting. The baffle can prevent the pipe fitting from rolling excessively and block the pipe fitting to make it enter between the two integral sheaves. When the pipe fitting is bent, the baffle is used to support the rear end of the pipe fitting, so as to facilitate the bending of the pipe fitting. The baffle and the material baffle with elasticity can be telescopic. When the pusher plate pushes the pipe fitting, it can prevent the movement of the baffle from blocking the pusher plate and enable smooth feeding.

[0024] Preferably, the linkage mechanism includes a reciprocating power member fixed on the support frame. A driving rod is connected to the reciprocating power member. A driving plate is sleeved on the driving rod. A push-pull assembly is arranged between the driving rod and the driving plate. A connecting assembly for connecting the first round rod and the second round rod is arranged on the driving plate. It further includes a triggering assembly for triggering the movement of the second round rod and a resetting assembly for pushing the second round rod to reset.

[0025] By adopting the above technical solution: The reciprocating power member can directly drive the driving rod to move up and down. The driving rod is sleeved in the driving plate, and the driving plate can be intermittently driven to move up and down through the pushing assembly. The driving plate can drive the first round rod and the second round rod to move up and down through the connecting assembly, so as to change the groove pitch of the whole sheave and adapt to pipe fittings of different diameters. The triggering assembly can drive the second round rod to move away from the first round rod, so that the two integral sheaves form an interval, facilitating the rolling of the pipe fitting between the two integral sheaves. The second round rod can be returned to its original position through the resetting assembly to initially clamp the pipe fitting.

[0026] Preferably, a sliding hole is arranged on the driving plate, and the driving rod is sleeved in the sliding hole. The push-pull assembly includes a pulling-back block and a jacking block arranged on the driving rod. The jacking block and the pulling-back block are on both sides of the driving plate;

[0027] The connecting assembly includes a first through hole opened on the driving plate for passing through the first round rod. The lower ends of the first round rod and the second round rod pass through the driving plate and are loosely fixed to the driving plate by two nuts. The two nuts are on both sides of the driving plate.

[0028] By adopting the above technical solution: The two nuts and the driving plate are not in a fastened state and have a certain gap. In particular, the two nuts on the second round rod should not be in close contact with the driving plate, which facilitates the movement of the second round rod relative to the driving plate.

[0029] Preferably, the triggering assembly includes a driven block provided at the lower end of the second round rod. The driven block is provided with a sliding inclined surface portion. The driving rod is provided with a triggering block that cooperates with the driven block. The triggering block is located below the lifting block. The driving plate is provided with a straight groove portion for the second round rod to slide. One end of the straight groove portion close to the first round rod is provided with a driving groove. The driving plate is also provided with a relief arc groove.

[0030] By adopting the above technical solution: When the driving rod moves upward, the triggering block on the driving rod contacts the driven block. Since the driven block has a sliding inclined surface portion and the driving rod moves vertically upward, after the triggering block contacts the sliding inclined surface portion, it forces the driven block to drive the second round rod to move along the straight groove portion in a direction away from the first round rod, so that a gap is formed between the two integral sheave wheels, facilitating the pipe fitting to enter between the two integral sheave wheels. When the pipe fitting enters between the two integral sheave wheels, the driving rod moves downward, and the second round rod gradually returns to its position under the drive of the reset assembly and clamps the pipe fitting. Then, the driving plate is rotated through the swinging mechanism. The driving groove on the driving plate drives the second round rod to rotate, so that the integral sheave wheel cooperating with the second round rod rotates around the integral sheave wheel cooperating with the first round rod, thereby bending the pipe fitting. When the driving plate rotates, the relief arc groove can provide a relative rotation space for the driving rod to prevent jamming and hindering the rotation of the driving plate.

[0031] Preferably, the reset assembly includes a mounting block fixed to the lower part of the operation platform. One end of a reset spring is fixed to the mounting block, and the other end of the reset spring is connected to a sliding sleeve. The sliding sleeve is sleeved on the second round rod.

[0032] By adopting the above technical solution: When the second round rod moves in a direction away from the first round rod under the drive of the driven block, the reset spring is compressed. When the driving rod moves in the reverse direction, the reset spring releases its elastic force to drive the second round rod to return to its position. By providing the sliding sleeve, the second round rod can move up and down.

[0033] Preferably, the swinging mechanism includes a rotating seat mounted on the support frame. A swinging power member is rotatably connected to the rotating seat. The swinging power member is connected to a swing rod. A limiting plate is provided at the top end of the swing rod after it passes through the driving plate.

[0034] By adopting the above technical solution: The swinging power member can rotate relative to the rotating seat, which is equivalent to a hinged manner. Its extension can drive the swing rod to move. Since the swing rod is arranged inside the driving plate, the driving plate can be driven to swing. The driving groove on the driving plate can drive the first round rod to rotate around the first round tube, so that the overall sheave related to the second round rod rotates around the overall sheave corresponding to the first round rod, and the pipe between the two overall sheaves can be bent. The limiting plate can prevent the swing rod from slipping out of the driving rod.

[0035] The working principle and beneficial effects of the present invention are as follows:

[0036] 1. The automatic feeding mechanism in the present invention can temporarily store pipes and feed a single pipe. The pipe can enter the adaptive bending mechanism through the feeding mechanism for bending. Specifically, the linkage mechanism can drive the pulley assembly to move away from the fixed pulley assembly first, so that a gap is formed between the fixed pulley assembly and the pulley assembly. The pipe at the feeding mechanism can enter between the fixed pulley assembly and the pulley assembly. Then the pulley assembly returns to its position to clamp the pipe with the fixed pulley assembly. When the pipe is between the fixed pulley assembly and the pulley assembly, the pulley assembly is driven to rotate around the fixed pulley assembly through the swinging mechanism, so that the pipe is bent. The degree of automation is high. Only need to manually feed multiple pipes to the automatic feeding mechanism, which improves the production efficiency and can adapt to pipes with different diameters.

[0037] 2. The support frame in the present invention is used to support the operation platform. The operation platform is the main structure for pipe bending. The fixed pulley assembly, the pulley assembly and the feeding mechanism are all installed on its upper part, which can realize automatic feeding, adapt to the diameters of different pipes for clamping and bending, and the drive of the linkage mechanism realizes the linkage of pipe feeding and bending.

[0038] 3. After the pipe bending is completed in the present invention, through the push of the pushing power member, the push plate can push the pipe out of the operation platform. A receiving frame can be arranged below the operation platform to receive the bent pipes, realizing automatic blanking.

[0039] 4. When the driving rod moves upward, the touch block on the driving rod contacts the driven block. Since the driven block has a sliding inclined portion, the driving rod moves vertically upward, so after the touch block contacts the sliding inclined portion, it forces the driven block to drive the second round rod to move along the straight groove portion in a direction away from the first round rod, thereby forming a gap between the two integral groove wheels, making it convenient for the pipe fitting to enter between the two integral groove wheels. When the pipe fitting enters between the two integral groove wheels, the driving rod moves downward, and the second round rod gradually returns to its position under the drive of the reset assembly, clamping the pipe fitting, and then rotating the driving plate through the swing mechanism. The driving groove on the driving plate drives the second round rod to rotate, so that the integral groove wheel matching the second round rod rotates around the integral groove wheel matching the first round rod, thereby bending the pipe fitting. When the driving plate rotates, the yield arc groove can provide relative rotation space for the driving rod to prevent jamming and obstruction of the rotation of the driving plate.

[0040] 5. The swinging power part in the present invention can rotate relative to the rotating seat, which is equivalent to a hinged manner. Its extension can drive the rocker arm to move. Since the rocker arm is arranged inside the driving plate, it can drive the driving plate to swing. The driving groove on the driving plate can drive the first round rod to rotate around the first round tube, so that the integral groove wheel related to the second round rod rotates around the integral groove wheel corresponding to the first round rod. The pipe fitting between the two integral groove wheels can be bent, and the limit plate can prevent the rocker arm from slipping out of the driving rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] Figure 1 This is a schematic diagram of the overall side structure of an embodiment of the present invention;

[0043] Figure 2 Schematic diagram of a top view of the structure of an embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of the top view of the structure of the embodiment of the present invention after removing the guide plate;

[0045] Figure 4 This is a schematic structural diagram of a loading assembly according to an embodiment of the present invention;

[0046] Figure 5 This is a structural schematic diagram of a material guide plate according to an embodiment of the present invention;

[0047] Figure 6 Schematic diagram of the top view of the spacer feeding assembly according to an embodiment of the present invention;

[0048] Figure 7 Schematic diagram of the top view of the driving plate according to an embodiment of the present invention;

[0049] Figure 8Structural schematic diagram of the adaptive bending mechanism according to an embodiment of the present invention;

[0050] Figure 9 Structural schematic diagram of the linkage mechanism according to an embodiment of the present invention.

[0051] In the figure: 100, device frame; 110, support frame; 120, operation platform; 200, automatic feeding mechanism; 210, material storage frame; 220, lifting power component; 230, material blocking plate; 240, lifting plate; 250, blanking part; 300, adaptive bending mechanism; 310, fixed wheel assembly; 311, rotating shaft; 312, first lower grooved pulley; 313, first upper grooved pulley; 314, first square rod; 315, wheel shaft; 316, first limit block; 317, first round rod; 318, material blocking plate; 320, pulley assembly; 321, second lower grooved pulley; 322, second upper grooved pulley; 323, second square rod; 324, second limit block; 325, second round rod; 330, blocking plate; 340, linear through groove; 350, arc through groove; 400, material guiding mechanism; 410, material guiding plate; 420, telescopic power component; 430, fork; 440, through hole; 500, linkage mechanism; 510, reciprocating power component; 520, driving rod; 530, driving plate; 531, sliding hole; 532, first through hole; 533, nut; 534, relief arc groove; 541, pulling-back block; 542, lifting block; 551, driven block; 552, sliding inclined surface part; 553, triggering block; 554, straight groove part; 555, driving groove; 561, mounting block; 562, return spring; 563, sliding sleeve; 600, swinging mechanism; 610, rotating seat; 620, swinging power component; 630, swing rod; 640, limit plate; 700, blanking mechanism; 710, pushing power component; 720, pushing plate. Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0053] As Figures 1-9As shown in the figure, this embodiment provides an automatic bending device for tower pipe fittings, which includes a device frame 100. An automatic feeding mechanism 200 is provided on one side of the device frame 100. An adaptive bending mechanism 300 is provided on the upper part of the device frame 100. A guiding mechanism 400 is provided between the automatic feeding mechanism 200 and the adaptive bending mechanism 300. The adaptive bending mechanism 300 includes a fixed-wheel assembly 310 rotatably connected to the device frame 100 with a relatively fixed position and a pulley assembly 320 slidably arranged on the device frame 100. The wheel width spacing between the fixed-wheel assembly 310 and the pulley assembly 320 is adjustable. It also includes a linkage mechanism 500 for driving the fixed-wheel assembly 310 and the pulley assembly 320 to act, and a swinging mechanism 600 connected to the linkage mechanism 500 for driving the pulley assembly 320 to swing.

[0054] The basic principle of this embodiment: The automatic feeding mechanism 200 can temporarily store pipe fittings and feed a single pipe fitting as much as possible. The pipe fittings can enter the adaptive bending mechanism 300 through the guiding mechanism 400 for bending. Specifically, the linkage mechanism 500 can drive the pulley assembly 320 to move away from the fixed-wheel assembly 310 first, so that a gap is formed between the fixed-wheel assembly 310 and the pulley assembly 320. The pipe fittings at the guiding mechanism 400 can enter between the fixed-wheel assembly 310 and the pulley assembly 320 through the above gap. Then the pulley assembly 320 returns to clamp the pipe fittings with the fixed-wheel assembly 310. When the pipe fittings are between the fixed-wheel assembly 310 and the pulley assembly 320, the swinging mechanism 600 drives the pulley assembly 320 to rotate around the fixed-wheel assembly 310, so that the pipe fittings are bent. The degree of automation is high. Only need to manually load multiple pipe fittings onto the automatic feeding mechanism 200, which improves the production efficiency and can adapt to pipe fittings of different diameters.

[0055] Refer to Figures 1-3 , in this embodiment, the device frame 100 includes a support frame 110 and an operation platform 120 arranged on the top of the support frame 110. Among them, the support frame 110 and the operation platform 120 can be made of steel profiles. The fixed-wheel assembly 310, the pulley assembly 320 and the guiding mechanism 400 are all arranged on the upper side of the operation platform 120. The linkage mechanism 500 is arranged on the lower side of the operation platform 120 to drive the relative movement of the fixed-wheel assembly 310 and the pulley assembly 320.

[0056] Specifically, the support frame 110 can be a support body with a four-leg structure for supporting the operation platform 120. The operation platform 120 is the main structure for bending pipe fittings. The fixed-wheel assembly 310, the pulley assembly 320 and the guiding mechanism 400 are all installed on its upper part, which can realize automatic feeding, clamping and bending of pipe fittings with different diameters, and the driving of the linkage mechanism 500 realizes the linkage of pipe fitting feeding and bending.

[0057] Refer toFigure 2 and Figure 3 In order to achieve automatic blanking, this embodiment further includes a blanking mechanism 700 disposed on the operation platform 120 for pushing the bent pipe fittings to automatically blank. After the pipe fittings are bent, the blanking mechanism 700 can automatically push the pipe fittings out of the operation platform 120 to prepare for the bending of the next pipe fitting, without much human participation.

[0058] Among them, the blanking mechanism 700 includes a pushing power member 710 disposed on the operation platform 120, and the pushing power member 710 is connected to a pushing plate 720. When the pipe fittings are bent, the pushing plate 720 can push the pipe fittings out of the operation platform 120 by the push of the pushing power member 710. A receiving frame can be disposed below the operation platform 120 to receive the bent pipe fittings, realizing automatic blanking. The pushing power member 710 can be an electric cylinder or an oil cylinder, etc., with the electric cylinder being preferred.

[0059] Referring to Figure 1 and Figure 4 In this embodiment, the automatic loading mechanism 200 includes a material storage frame 210 disposed on one side of the operation platform 120. The bottom of the material storage frame 210 is higher on the side away from the operation platform 120 than on the side close to the operation platform 120. At the connection between the material storage frame 210 and the support frame 110, there is a loading component for lifting a single pipe fitting to the guiding mechanism 400. By stacking a plurality of pipe fittings inside the material storage frame 210, the single automatic loading of the pipe fittings can be realized, that is, one pipe fitting is loaded for bending at a time, without manually loading each pipe fitting one by one, saving a lot of manpower.

[0060] The loading component among them includes a lifting power member 220 disposed on the support frame 110. The upper end of the lifting power member 220 is provided with a blocking plate 230. The upper part of the blocking plate 230 is provided with a lifting plate 240. The side of the lifting plate 240 away from the support frame 110 is provided with an arc-shaped blanking portion 250. The lifting power member 220 can push the lifting plate 240 to rise. Through the blanking portion 250, as many as possible one pipe fitting can be pushed up at a time. The extra pipe fittings can slide out of the lifting plate 240 through the blanking portion 250. At the same time, the blocking plate 230 can prevent the bottom pipe fittings from piling up and hindering the falling of the lifting plate 240, preparing for the next loading. The lifting power member 220 can be an electric cylinder or an oil cylinder, etc., with the electric cylinder being preferred.

[0061] Referring to Figure 5 and Figure 6, in this embodiment, the material guiding mechanism 400 includes a material guiding plate 410 disposed on the operation platform 120 and inclined towards the fixed wheel assembly 310 and the pulley assembly 320. An intermittent feeding assembly is provided on the material guiding plate 410. The intermittent feeding assembly includes a telescopic power member 420 disposed between the operation platform 120 and the material guiding plate 410. A fork 430 is connected to the telescopic power member 420. A plurality of through holes 440 for passing through the fork 430 are provided on the material guiding plate 410.

[0062] When the pipe fitting is lifted to the height of the material guiding plate 410, due to the inclined arrangement of the material guiding plate 410, the key can perform rolling feeding. By setting the intermittent feeding assembly, when feeding pipe fittings with a smaller diameter, the lifting plate 240 may lift more than one pipe fitting. At this time, through the intermittent telescopic movement of the telescopic power member 420, the fork 430 intermittently blocks the pipe fittings, so that only one pipe fitting is released at a time, realizing the single feeding of the pipe fittings.

[0063] Refer to Figure 7 and Figure 8 , in this embodiment, the fixed wheel assembly 310 includes a first lower grooved pulley 312 rotatably disposed on the operation platform 120 through a rotating shaft 311. A first upper grooved pulley 313 is slidably disposed on the upper part of the first lower grooved pulley 312. The first upper grooved pulley 313 is connected to a first square rod 314. The first square rod 314 is inserted into the axle 315 of the first lower grooved pulley 312. A first limiting block 316 with a square through hole is provided in the axle 315. After passing through the first limiting block 316, the first square rod 314 is connected to a first round rod 317;

[0064] The pulley assembly 320 therein includes a second lower grooved pulley 321 slidably disposed on the operation platform 120. A second upper grooved pulley 322 is slidably disposed on the upper part of the second lower grooved pulley 321. The second upper grooved pulley 322 is connected to a second square rod 323. The second square rod 323 is inserted into the axle 315 of the second lower grooved pulley 321. A second limiting block 324 with a square through hole is provided in the axle 315. After passing through the first limiting block 316, the second square rod 323 is connected to a second round rod 325;

[0065] In order to be able to block the material, a material blocking plate 318 is provided on the first upper grooved pulley 313, and a blocking plate 330 is provided on the operation platform 120; both the material blocking plate 318 and the blocking plate 330 are elastic. A linear through groove 340 and an arc through groove 350 are provided on the operation platform 120. The linear through groove 340 and the arc through groove 350 are communicated. In the initial state, the second round rod 325 is located in the linear through groove 340; the first round rod 317 and the second round rod 325 pass through the operation platform 120 and are connected to the linkage mechanism 500.

[0066] After the above settings: The first upper sheave 313 and the first lower sheave 312 form an integral sheave, and the second upper sheave 322 and the second lower sheave 321 form an integral sheave. The groove pitch of the two integral sheaves is adjustable through the linkage mechanism 500 to adapt to pipe fittings of different diameters. Specifically, the first upper sheave 313 can move relative to the first lower sheave 312, so that the distance between the first upper sheave 313 and the first lower sheave 312 can be changed. Similarly, the second upper sheave 322 can synchronize with the movement of the first upper sheave 313, and their synchronous movement can adapt to pipe fittings of different diameters. The cooperation between the two square rods and the limiting blocks enables the upper sheave and the lower sheave to better clamp the pipe fitting. The baffle 330 can prevent the pipe fitting from rolling excessively and block the pipe fitting to make it enter between the two integral sheaves. When the pipe fitting is bent, the baffle 330 is used to support the rear end of the pipe fitting, so as to facilitate the bending of the pipe fitting. The telescopic baffle 330 and the material baffle 318 can be telescoped. When the push plate 720 pushes the pipe fitting, it can prevent the movement of the push plate 720 from being blocked, and the blanking can be carried out smoothly.

[0067] Referring to Figure 1 and Figure 9 In this embodiment, the linkage mechanism 500 includes a reciprocating power member 510 fixed on the support frame 110. A driving rod 520 is connected to the reciprocating power member 510. A driving plate 530 is sleeved on the driving rod 520. A push-pull assembly is provided between the driving rod 520 and the driving plate 530. A connecting assembly for connecting the first round rod 317 and the second round rod 325 is provided on the driving plate 530. It further includes a triggering assembly for triggering the movement of the second round rod 325 and a resetting assembly for pushing the second round rod 325 to reset.

[0068] The reciprocating power member 510 therein can directly drive the driving rod 520 to move up and down. The driving rod 520 is sleeved in the driving plate 530. The driving plate 530 can be intermittently driven to move up and down through the pushing assembly. The driving plate 530 can drive the first round rod 317 and the second round rod 325 to move up and down through the connecting assembly, so as to change the groove pitch of the entire sheave and adapt to pipe fittings of different diameters. The triggering assembly can drive the second round rod 325 to move away from the first round rod 317, so that the two integral sheaves form an interval, facilitating the rolling of the pipe fitting between the two integral sheaves. Through the resetting assembly, the second round rod 325 can be returned to its original position to initially clamp the pipe fitting. The reciprocating power member 510 can also adopt an electric cylinder or an oil cylinder, with the electric cylinder being preferred.

[0069] Specifically, the drive plate 530 is provided with a sliding hole 531, into which the drive rod 520 is inserted. The push-pull assembly includes a pullback block 541 and a lifting block 542 provided on the drive rod 520. The lifting block 542 and the pullback block 541 are located on either side of the drive plate 530. The connecting assembly includes a first through hole 532 provided on the drive plate 530 for passing the first round rod 317. The lower ends of the first round rod 317 and the second round rod 325 pass through the drive plate 530 and are loosely fixed to the drive plate 530 via two nuts 533. The two nuts 533 are located on either side of the drive plate 530. The two nuts 533 are not tightly fixed to the drive plate 530, but have a certain clearance. In particular, the two nuts 533 on the second round rod 325 do not abut against the drive plate 530, thereby facilitating the relative movement of the second round rod 325 relative to the drive plate 530.

[0070] Specifically, the touch assembly includes an actuated block 551 arranged at the lower end of the second round rod 325, and the actuated block 551 is provided with a sliding inclined portion 552. The driving rod 520 is provided with a touch block 553 that cooperates with the actuated block 551. The touch block 553 is located at the lower part of the lifting block 542. The driving plate 530 is provided with a straight groove portion 554 for the second round rod 325 to slide. The straight groove portion 554 is provided with a driving groove 555 at one end close to the first round rod 317, and the driving plate 530 is also provided with a yielding arc groove 534. When the driving rod 520 moves upward, the trigger block 553 on the driving rod 520 contacts the actuated block 551. Since the actuated block 551 has a sliding inclined portion 552, the driving rod 520 moves vertically upward, so that the trigger block 553 contacts the sliding inclined portion 552, forcing the actuated block 551 to drive the second round rod 325 to move away from the first round rod 317 along the straight groove portion 554, thereby forming a gap between the two integral groove wheels, making it easier for the pipe to enter between the two integral groove wheels. When the pipe enters between the two integral groove wheels, the driving rod 520 The rod 520 moves downward, and the second round rod 325 gradually returns to its position under the drive of the reset assembly, clamping the pipe fitting. Then, the driving plate 530 is rotated through the swing mechanism 600. The driving groove 555 on the driving plate 530 drives the second round rod 325 to rotate, so that the integral groove wheel matched with the second round rod 325 rotates around the integral groove wheel matched with the first round rod 317, thereby bending the pipe fitting. When the driving plate 530 rotates, the yield arc groove 534 can provide relative rotation space for the driving rod 520 to prevent it from getting stuck and hindering the rotation of the driving plate 530.

[0071] Specifically, the reset component includes a mounting block 561 fixed to the lower part of the operation platform 120. One end of a reset spring 562 is fixed to the mounting block 561, and the other end of the reset spring 562 is connected to a sliding sleeve 563. The sliding sleeve 563 is sleeved on the second round rod 325. When the second round rod 325 is driven by the driven block 551 to move away from the first round rod 317, the reset spring 562 is compressed. When the driving rod 520 moves in the reverse direction, the reset spring 562 releases elastic force to drive the second round rod 325 to reset. By providing the sliding sleeve 563, the second round rod 325 can move up and down.

[0072] The swing mechanism 600 in this embodiment includes a rotating seat 610 mounted on the support frame 110. A swing power member 620 is rotatably connected to the rotating seat 610. The swing power member 620 is connected to a swing rod 630. A limiting plate 640 is provided at the top end of the swing rod 630 after it passes through the driving plate 530. The swing power member 620 can rotate relative to the rotating seat 610, which is equivalent to a hinged manner. Its extension can drive the swing rod 630 to move. Since the swing rod 630 is arranged inside the driving plate 530, the driving plate 530 can be driven to swing. The driving groove 555 on the driving plate 530 can drive the first round rod 317 to rotate around the first round tube, so that the overall sheave related to the second round rod 325 rotates around the overall sheave corresponding to the first round rod 317, and the pipe fitting between the two overall sheaves can be bent. The limiting plate 640 can prevent the swing rod 630 from slipping out of the driving rod 520. The swing power member 620 can adopt a power member with a telescopic function such as an electric cylinder.

[0073] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic bending device for iron tower pipe fittings, comprising a device frame body (100), characterized in that, An automatic feeding mechanism (200) is provided on one side of the device frame (100), an adaptive bending mechanism (300) is provided on the upper part of the device frame (100), a material guide mechanism (400) is provided between the automatic feeding mechanism (200) and the adaptive bending mechanism (300), the adaptive bending mechanism (300) comprising a fixed wheel assembly (310) rotatably connected to the device frame (100) at a relatively fixed position and a pulley assembly (320) slidably arranged on the device frame (100), the wheel width spacing between the fixed wheel assembly (310) and the pulley assembly (320) being adjustable, and a linkage mechanism (500) for driving the fixed wheel assembly (310) and the pulley assembly (320) to move, and a swing mechanism (600) connected to the linkage mechanism (500) for driving the pulley assembly (320) to swing; The device frame (100) comprises a support frame (110) and an operating platform (120) arranged on the top of the support frame (110); the fixed wheel assembly (310), the pulley assembly (320) and the material guide mechanism (400) are all arranged on the upper side of the operating platform (120); and the linkage mechanism (500) is arranged on the lower side of the operating platform (120); The fixed wheel assembly (310) includes a first lower sheave (312) rotatably arranged on the operating platform (120) via a rotating shaft (311); a first upper sheave (313) is slidably arranged above the first lower sheave (312); the first upper sheave (313) is connected to a first square rod (314); the first square rod (314) is passed through a first wheel shaft (315) of the first lower sheave (312); a first limiting block (316) having a square through hole is provided in the first wheel shaft (315); the first square rod (314) passes through the first limiting block (316) and is connected to a first round rod (317); The pulley assembly (320) includes a second lower sheave (321) slidably arranged on the operating platform (120); a second upper sheave (322) is slidably arranged above the second lower sheave (321); the second upper sheave (322) is connected to a second square rod (323); the second square rod (323) is passed through a second wheel shaft of the second lower sheave (321); a second limiting block (324) having a square through hole is provided in the second wheel shaft; the second square rod (323) passes through the second limiting block (324) and is connected to a second round rod (325); A material blocking plate (318) is provided on the first upper groove wheel (313), and a blocking plate (330) is provided on the operating platform (120); both the material blocking plate (318) and the blocking plate (330) are retractable; The operating platform (120) is provided with a linear through groove (340) and an arcuate through groove (350), wherein the linear through groove (340) and the arcuate through groove (350) are connected, and in an initial state, the second round rod (325) is located in the linear through groove (340); The first round rod (317) and the second round rod (325) pass through the operating platform (120) and are connected to the linkage mechanism (500); The linkage mechanism (500) includes a reciprocating power member (510) fixed on a support frame (110), a driving rod (520) connected to the reciprocating power member (510), a driving plate (530) passing through the driving rod (520), a push-pull assembly provided between the driving rod (520) and the driving plate (530), a connecting assembly connecting the first round rod (317) and the second round rod (325) provided on the driving plate (530), and also includes a triggering assembly for triggering the movement of the second round rod (325) and a resetting assembly for pushing the second round rod (325) to reset. The driving plate (530) is provided with a sliding hole (531), the driving rod (520) is inserted into the sliding hole (531), and the push-pull assembly includes a pull-back block (541) and a lifting block (542) provided on the driving rod (520), and the lifting block (542) and the pull-back block (541) are located on both sides of the driving plate (530); The connecting assembly includes a first through hole (532) formed on the driving plate (530) for passing the first round rod (317); the lower ends of the first round rod (317) and the second round rod (325) pass through the driving plate (530) and are loosely fixed to the driving plate (530) via two nuts (533); the two nuts (533) are located on both sides of the driving plate (530); The touch assembly includes an actuated block (551) arranged at the lower end of the second round rod (325), the actuated block (551) is provided with a sliding inclined portion (552), the driving rod (520) is provided with a touch block (553) cooperating with the actuated block (551), the touch block (553) is located at the lower part of the lifting block (542), the driving plate (530) is provided with a straight groove portion (554) for the second round rod (325) to slide, the straight groove portion (554) is provided with a driving groove (555) at one end close to the first round rod (317), and the driving plate (530) is also provided with a yielding arc groove (534).

2. The automatic bending device for iron tower pipe fittings according to claim 1, characterized in that, It also includes a material unloading mechanism (700) disposed on the operating platform (120) for automatically unloading the pipe after the bending is completed.

3. The automatic bending device for tower pipe fittings according to claim 2, wherein, The unloading mechanism (700) comprises a pushing power member (710) arranged on the operating platform (120), and the pushing power member (710) is connected to a pushing plate (720).

4. The automatic bending device for iron tower pipe fittings according to claim 1, characterized in that The automatic loading mechanism (200) comprises a material holding frame (210) arranged on one side of the operating platform (120), wherein the bottom of the material holding frame (210) is higher on the side away from the operating platform (120) than on the side close to the operating platform (120), and a loading assembly for lifting a single pipe to the material guiding mechanism (400) is provided at the connection between the material holding frame (210) and the support frame (110).

5. The automatic bending device for iron tower pipe fittings according to claim 4, characterized in that The feeding component includes a lifting power member (220) disposed on the support frame (110). A material blocking plate (230) is provided at the upper end of the lifting power member (220). A lifting plate (240) is provided at the upper part of the material blocking plate (230). An arc-shaped blanking portion (250) is provided on the side of the lifting plate (240) away from the support frame (110).

6. The automatic bending device for iron tower pipe fittings according to claim 4, characterized in that, The material guiding mechanism (400) includes a material guiding plate (410) disposed on the operation platform (120) and inclined towards the fixed wheel assembly (310) and the pulley assembly (320). An intermittent feeding component is provided on the material guiding plate (410). The intermittent feeding component includes a telescopic power member (420) disposed between the operation platform (120) and the material guiding plate (410). A fork frame (430) is connected to the telescopic power member (420). A plurality of through holes (440) for passing through the fork frame (430) are provided on the material guiding plate (410).

7. An automatic bending device for iron tower pipe fittings according to claim 1, characterized in that, The reset component includes a mounting block (561) fixed to the lower part of the operation platform (120). One end of a reset spring (562) is fixed to the mounting block (561). The other end of the reset spring (562) is connected to a sliding sleeve (563). The sliding sleeve (563) is sleeved on the second round rod (325).

8. An automatic bending device for iron tower pipe fittings according to claim 1, characterized in that, The swinging mechanism (600) includes a rotating seat (610) mounted on the support frame (110). A swinging power member (620) is rotatably connected to the rotating seat (610). The swinging power member (620) is connected to a swing rod (630). A limiting plate (640) is provided at the top end of the swing rod (630) after passing through the driving plate (530).

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