Swinging conveying device for pipes

Abstract

The present invention discloses a swing conveying device for pipes, which comprises a conveying frame. A plurality of load-carrying conveying rollers for carrying and conveying pipes are rotatably installed on the conveying frame. A swing roller frame is swingably installed on the conveying frame. A swing power device for driving the swing roller frame to reciprocally swing is arranged between the swing roller frame and the conveying frame. The swing roller frame is driven by the swing power device to reciprocally switch between an upstream conveying station and a downstream conveying station. A first driving conveying roller for actively conveying pipes is rotatably installed on the swing roller frame. A first rotating power device for driving the first driving conveying roller to rotate is installed on the swing roller frame. When the driving conveying roller is at the upstream conveying station or the downstream conveying station, it cooperates with the load-carrying conveying rollers to roll and convey the pipes together; the device mechanism switches the position of roller conveying by means of swinging, so that the conveying continuity of the pipes is good, and the structure is simple, saving costs.

Description

Technical Field

[0001] The present invention relates to a swing conveying device for pipes, which is applicable to the field of pipe conveying. Background Art

[0002] With the rapid development of social economy, pipes are a common industrial raw material and are widely used in the processing of various products; due to the circular cross-section of pipes, without other constraints, it is very easy to roll, and the stability is not as good as that of other profiles. Therefore, a special conveyor is required for transportation and processing. During the production process, pipes need to be continuously conveyed and cut for use. Currently, the main conveying methods for pipes are axial conveying and feeding through clamping or pushing. The clamping method uses a clamp that can move axially to hold the axial movement of the pipe, and the reciprocating movement distance of the clamp is the distance of each pipe conveyance; while the pushing method sets a pushing block that can move axially at the rear end of the pipe, and the reciprocating movement of the pushing block is used to achieve the conveyance of the pipe. However, the above-mentioned conveying mechanisms generally can only convey single pipes. Moreover, when using the clamping method for conveying, since the clamp needs to hold the pipe, there will be a relatively long tail material remaining on the pipe; when choosing the pushing conveying method, the structure is relatively complex. When the length of the pipe is relatively long, the pushing movement distance of the pipe is relatively long, so the reset time of the pushing block is relatively long, resulting in a slow conveying rhythm and low efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: a swing conveying device for pipes, which switches the conveying position of roller feeding through a yawing method, so that the conveying continuity of the pipes is good, and the structure is simple, saving costs.

[0004] To solve the above technical problem, the technical solution of the present invention is: a swing conveying device for pipes, including a conveying frame, on which a plurality of load-carrying conveying rollers for carrying and conveying pipes are rotatably installed, a swing roller frame is swingably installed on the conveying frame, a swing power device for driving the swing roller frame to reciprocate and yaw is provided between the swing roller frame and the conveying frame, the swing roller frame is driven by the swing power device to reciprocally switch between an upstream conveying station and a downstream conveying station, a first driving conveying roller for actively conveying the pipe is rotatably installed on the swing roller frame, a first rotational power device for driving the first driving conveying roller to rotate is installed on the swing roller frame, and when the driving conveying roller is at the upstream conveying station or the downstream conveying station, it cooperates with the load-carrying conveying rollers to roll and convey the pipe together.

[0005] As a preferred solution, the first active conveying roller includes a first upstream active conveying roller and a first downstream active conveying roller. The first upstream active conveying roller and the first downstream active conveying roller are respectively located on the upstream side and the downstream side of the swing center of the swing roller frame. Both the first upstream active conveying roller and the first downstream active conveying roller are in transmission connection with the output end of the first rotary power device. When in the upstream conveying station, the first upstream active conveying roller cooperates with the bearing conveying roller to roll and convey the pipe. When in the downstream conveying station, the first downstream active conveying roller cooperates with the bearing conveying roller to roll and convey the pipe.

[0006] As a preferred solution, the bearing conveying roller includes an ordinary conveying roller group and a limiting conveying roller group. The ordinary conveying roller group is rotatably installed on the conveying frame to carry the pipe, and the limiting conveying roller group is installed on the conveying frame to limit the left and right sides of the pipe.

[0007] As a preferred solution, the limiting conveying roller group includes a first limiting conveying roller and a second limiting conveying roller. The first limiting conveying roller and the second limiting conveying roller are respectively located on both sides of the pipe and restrain the pipe.

[0008] As a preferred solution, the roller seat of the first limiting conveying roller or / and the roller seat of the second limiting conveying roller are horizontally slidably installed on the conveying frame, and a horizontal adjusting mechanism for adjusting the roller seat of the first limiting conveying roller or / and the roller seat of the second limiting conveying roller is installed on the conveying frame.

[0009] As a preferred solution, the ordinary conveying roller group includes a passive conveying roller group and a second active conveying roller group. The second active conveying roller group includes a second upstream active conveying roller and a second downstream active conveying roller rotatably installed on the conveying frame. The second upstream active conveying roller cooperates with the first upstream active conveying roller, and the second downstream active conveying roller cooperates with the first downstream active conveying roller. A second rotary power device for driving the second upstream active conveying roller and the second downstream active conveying roller to rotate is installed on the conveying frame.

[0010] As a preferred solution, the first rotary power device and the second rotary power device are a rotary motor. A first driving wheel and a second driving wheel are installed on the output shaft of the rotary motor. The first driving wheel is in transmission connection with the first upstream active conveying roller and the first downstream active conveying roller through a first belt transmission device or a first chain transmission device; the second driving wheel is in transmission connection with the second upstream active conveying roller and the second downstream active conveying roller through a second belt transmission device or a second chain transmission device.

[0011] As a preferred solution, an upper limiting device for pressing or releasing the pipe from above is installed on the conveying frame or the swing roller frame.

[0012] As a preferred solution, the upper limit device includes a pressing plate hinged to the conveying frame or the swing roller frame. A pressing roller for pressing the pipe is rotatably installed on the pressing plate. A limit swing power device for driving the pressing plate to swing is installed between the conveying frame and the pressing plate or between the swing roller frame and the pressing plate.

[0013] As a preferred solution, the number of the swing conveying devices is two or more and they are arranged in parallel. Synchronous connecting rods are arranged between the swing roller frames, and each swing roller frame is driven by a set of swing power devices.

[0014] After adopting the above technical solution, the effects of the present invention are as follows: Since the swing conveying device for the pipe includes a conveying frame, a plurality of load-carrying conveying rollers for carrying and conveying the pipe are rotatably installed on the conveying frame. A swing roller frame is swingably installed on the conveying frame. A swing power device for driving the swing roller frame to reciprocally swing is provided between the swing roller frame and the conveying frame. The swing roller frame is driven by the swing power device to reciprocally switch between the upstream conveying station and the downstream conveying station. A first active conveying roller for actively conveying the pipe is rotatably installed on the swing roller frame. A first rotation power device for driving the first active conveying roller to rotate is installed on the swing roller frame. The first active conveying roller cooperates with the load-carrying conveying rollers to roll and convey the pipe when at the upstream conveying station or the downstream conveying station; First, the pipe is placed on the load-carrying conveying rollers, and the pipe extends into the upstream conveying station. Then, the first rotation power device drives the first active conveying roller on the swing roller frame to start rotating. Then, the swing power device drives the swing roller frame to swing to the upstream conveying station. At this time, the first active conveying roller cooperates with the load-carrying conveying rollers to axially convey the pipe until the rear part of the pipe is conveyed past the upstream conveying station. The swing power device then drives the swing roller frame to swing to the downstream conveying station. The first active conveying roller cooperates with the load-carrying conveying rollers to continue conveying the pipe. After that, the swing of the swing roller frame is repeatedly driven, and the first active conveying roller cooperates with the load-carrying conveying rollers to continue conveying the pipe supplemented at the upstream conveying station. During the conveying process, the upstream pipe will push the downstream pipe for conveying, so that the continuous conveying of the pipe can be completed; This mechanism switches the position of roller conveying by means of swinging, so that the conveying continuity of the pipe is good, and the structure is simple, saving costs.

[0015] Also, since the first active conveying roller includes a first upstream active conveying roller and a first downstream active conveying roller, the first upstream active conveying roller and the first downstream active conveying roller are respectively located on the upstream side and the downstream side of the swing center of the swing roller frame, and both the first upstream active conveying roller and the first downstream active conveying roller are in transmission connection with the output end of the first rotary power device; when in the upstream conveying station, the first upstream active conveying roller cooperates with the carrying conveying roller to roll and convey the pipe, and when in the downstream conveying station, the first downstream active conveying roller cooperates with the carrying conveying roller to roll and convey the pipe; in this way, when switching between the upstream conveying station and the downstream conveying station, using the first upstream active conveying roller and the first downstream active conveying roller can reach the corresponding station faster, improve the conveying efficiency, and the swing angle of the swing roller frame can also be smaller.

[0016] Also, since the carrying conveying roller includes a general conveying roller group and a limiting conveying roller group, the general conveying roller group is rotatably installed on the conveying frame to carry the pipe, and the limiting conveying roller group is installed on the conveying frame to limit the left and right sides of the pipe. The limiting conveying roller group includes a first limiting conveying roller and a second limiting conveying roller, and the first limiting conveying roller and the second limiting conveying roller are respectively located on both sides of the pipe and restrain the pipe; during the process of conveying the pipe, the conveying direction of the pipe can be well guaranteed to be accurate.

[0017] Also, since the roller seat of the first limiting conveying roller or / and the roller seat of the second limiting conveying roller are horizontally slidably installed on the conveying frame, and a horizontal adjusting mechanism for adjusting the roller seat of the first limiting conveying roller or / and the roller seat of the second limiting conveying roller is installed on the conveying frame, the position of the roller seat can be adjusted through the horizontal adjusting mechanism, and thus the distance between the first limiting conveying roller and the second limiting conveying roller can be changed to adapt to the diameters of different pipes, improving the diversity of the pipes conveyed by the device.

[0018] Also, since the general conveying roller group includes a passive conveying roller group and a second active conveying roller group, the second active conveying roller group includes a second upstream active conveying roller and a second downstream active conveying roller rotatably installed on the conveying frame. The second upstream active conveying roller cooperates with the first upstream active conveying roller, and the second downstream active conveying roller cooperates with the first downstream active conveying roller. A second rotary power device for driving the second upstream active conveying roller and the second downstream active conveying roller to rotate is installed on the conveying frame. In this way, the second rotary power device drives the second upstream active conveying roller and the second downstream active conveying roller to rotate. When conveying the pipe, the traction force for conveying the pipe is increased, the possibility of the pipe slipping is reduced, and the efficiency and precision are improved.

[0019] Moreover, since the first rotary power device and the second rotary power device are a rotary motor, a first driving wheel and a second driving wheel are installed on the output shaft of the rotary motor. The first driving wheel is connected to the first upstream driving conveying roller and the first downstream driving conveying roller through a first belt transmission device or a first chain transmission device; the second driving wheel is connected to the second upstream driving conveying roller and the second downstream driving conveying roller through a second belt transmission device or a second chain transmission device. Sharing one power device for the two sets of conveying devices can effectively save costs and simplify the structure.

[0020] Moreover, since an upper limit device for pressing or releasing the pipe from above is installed on the conveying frame or the swing roller frame, the upper limit device includes a pressing plate hinged to the conveying frame or the swing roller frame. A pressing roller for pressing the pipe downward is rotatably installed on the pressing plate. A limit swing power device for driving the pressing plate to swing is installed between the conveying frame and the pressing plate or between the swing roller frame and the pressing plate. The pressing roller is driven by the limit swing power device to press the pipe or lift it, so as to prevent the pipe from tilting due to different centers of gravity during the conveying process and causing the pipe to shift during the conveying, and it is also convenient for loading the pipe when lifted.

[0021] Moreover, since the number of the swing conveying devices is two sets or more and they are arranged in parallel, a synchronous connecting rod is arranged between each swing roller frame, and each swing roller frame is driven by a set of swing power devices. By arranging them in parallel, the number of pipes conveyed can be increased, the conveying efficiency can be improved, and by using a set of swing power devices for driving, the cost can be reduced, the device structure can be simplified, and the device can be further optimized. Brief Description of the Drawings

[0022] The present invention will be further described below with reference to the drawings and embodiments.

[0023] Figure 1 is a perspective view of an embodiment of the present invention;

[0024] Figure 2 is a top view of an embodiment of the present invention;

[0025] Figure 3 is a left view of an embodiment of the present invention;

[0026] Figure 4 is a transmission schematic diagram on the swing roller frame of an embodiment of the present invention;

[0027] Figure 5 is a structural schematic diagram on the conveying frame of an embodiment of the present invention;

[0028] In the drawings: 1, conveying base; 2, conveying frame; 3, passive conveying roller group; 4, second upstream active conveying roller; 5, second downstream active conveying roller; 6, first driving wheel; 7, second driving wheel; 8, third transmission wheel; 9, fourth transmission wheel; 10, swinging roller frame; 101, first upstream active conveying roller; 102, first downstream active conveying roller; 103, first transmission wheel; 104, second transmission wheel; 11, upstream conveying station; 12, downstream conveying station; 13, first cylinder; 14, crank block; 15, rotating motor; 16, synchronous connecting rod; 17, pressing plate; 18, pressing roller; 19, second cylinder; 20, first limiting conveying roller; 21, second limiting conveying roller; 22, roller seat; 23, guide rail; 24, lead screw; 25, T-shaped groove; 26, adjusting handwheel. Detailed implementation manners

[0029] The present invention will be further described in detail below through specific embodiments.

[0030] As Figures 1 to 5 shown, a swinging conveying device for pipes includes a conveying frame 2. A plurality of load-carrying conveying rollers for carrying and conveying pipes are rotatably installed on the conveying frame 2. A swinging roller frame 10 is swingably installed on the conveying frame 2. A swinging power device for driving the swinging roller frame 10 to reciprocally swing is provided between the swinging roller frame 10 and the conveying frame 2. The swinging roller frame 10 is driven by the swinging power device to reciprocally switch between an upstream conveying station 11 and a downstream conveying station 12. A first active conveying roller for actively conveying pipes is rotatably installed on the swinging roller frame 10. A first rotating power device for driving the first active conveying roller to rotate is installed on the swinging roller frame 10. When the active conveying roller is at the upstream conveying station 11 or the downstream conveying station 12, it cooperates with the load-carrying conveying rollers to roll and convey the pipes together.

[0031] In this embodiment, the conveying frame 2 is fixedly installed on the conveying base 1. When the device is conveying, the conveying base 1 is also fixedly installed on a frame (not shown in the figure). This frame serves as the load-bearing support for the entire pipe conveying. The bottom of the swinging power device is hinged to the frame. The swinging power device includes a first cylinder 13. The first cylinder 13 can reciprocally swing on the frame. The piston rod of the first cylinder 13 is connected with a crank block 14. The crank block 14 is rotatably installed on the swinging roller frame 10. When the piston rod of the first cylinder 13 extends, the crank block 14 is subjected to the pressure of the piston rod extending, and the swinging roller frame 10 starts to swing around the swing center from the downstream conveying station 12 until the first conveying roller on the swinging roller frame 10 swings to the upstream conveying station 11, and the piston rod stops extending. When the piston rod of the first cylinder 13 contracts, the crank block 14 is subjected to the pressure of the piston rod retracting, and the first conveying roller on the swinging roller frame 10 swings back from the upstream conveying station 11 to the downstream conveying station 12, and the piston rod stops retracting.

[0032] When transporting pipes, the pipes are placed on the load-carrying conveying rollers and the pipe ends are at the upstream conveying station 11, which facilitates the swinging roller frame 10 to swing to the upstream conveying station 11. Then, when the pipe tail is conveyed past the upstream conveying station 11, the first conveying roller at the upstream conveying station 11 cannot conduct the conveying. Therefore, the piston rod of the first cylinder 13 extends to drive the swinging roller frame 10 to swing from the upstream conveying station 11 to the downstream conveying station 12, so that the pipes can be continuously conveyed, ensuring good continuity of pipe conveying.

[0033] As Figure 1 and Figure 4 shown, the first driving conveying roller includes a first upstream driving conveying roller 101 and a first downstream driving conveying roller 102. The first upstream driving conveying roller 101 and the first downstream driving conveying roller 102 are respectively located on the upstream side and the downstream side of the swinging center of the swinging roller frame 10, and both the first upstream driving conveying roller 101 and the first downstream driving conveying roller 102 are in transmission connection with the output end of the first rotating power device; when at the upstream conveying station 11, the first upstream driving conveying roller 101 cooperates with the load-carrying conveying roller to roll and convey the pipes together, and when at the downstream conveying station 12, the first downstream driving conveying roller 102 cooperates with the load-carrying conveying roller to roll and convey the pipes together. By arranging the first upstream driving conveying roller 101 and the first downstream driving conveying roller 102 on the upstream side and the downstream side of the swinging center of the swinging roller frame 10 respectively, the swinging angle is reduced, so the required swinging time is also reduced, improving the conveying efficiency.

[0034] As Figure 1 and Figure 5 shown, the load-carrying conveying roller includes a general conveying roller group and a limiting conveying roller group. The general conveying roller group is rotatably installed on the conveying frame 2 to carry the pipes, and the limiting conveying roller group is installed on the conveying frame 2 to limit the left and right sides of the pipes; the limiting conveying roller group includes a first limiting conveying roller 20 and a second limiting conveying roller 21, and the first limiting conveying roller 20 and the second limiting conveying roller 21 are respectively located on both sides of the pipes to restrain the pipes; further, the roller seat 22 of the first limiting conveying roller 20 or / and the roller seat 22 of the second limiting conveying roller 21 are horizontally slidably installed on the conveying frame 2, and a horizontal adjusting mechanism for adjusting the roller seat 22 of the first limiting conveying roller 20 or / and the roller seat 22 of the second limiting conveying roller 21 is installed on the conveying frame 2.

[0035] In this embodiment, when a single set of swing conveying device is adopted, the first limiting conveying roller 20 is fixedly installed on the conveying frame 2, the second limiting conveying roller 21 is horizontally slidably installed on the conveying frame 2, the first limiting conveying roller 20 and the second limiting conveying roller 21 are conical or cylindrical and can rotate along their own axial directions. By controlling the sliding of the second limiting conveying roller 21, the distance between the first limiting conveying roller 20 and the second limiting conveying roller 21 can be changed, so as to be suitable for pipes with different diameters. The horizontal adjustment mechanism is a lead screw nut mechanism. The roller seat 22 of the second limiting conveying roller 21 is fixed to the nut of the lead screw nut mechanism. An adjustment handwheel 26 is installed on the lead screw 24 of the lead screw nut mechanism or the lead screw 24 of the lead screw nut mechanism is connected to an adjustment motor. A guide rail 23 is horizontally installed on the conveying frame 2, and a T-shaped groove 25 for facilitating the sliding of the roller seat 22 is provided on the guide rail 23. By rotating the adjustment handwheel 26 or driving the lead screw 24 by the adjustment motor to drive the roller seat 22 to slide, the first limiting conveying roller 20 and the second limiting conveying roller 21 can be aligned or staggered, and two sets of limiting conveying roller groups are used to limit the conveying direction of the pipe.

[0036] Furthermore, when multiple sets of the swing conveying device are used, the first limiting conveying roller 20 and the second limiting conveying roller 21 are installed in a staggered manner. Two first limiting conveying rollers 20 are adopted. The first limiting conveying roller 20 is fixedly installed between two sets of conveying frames 2 and cannot rotate along its own axial direction. Two second limiting conveying rollers 21 are slidably installed on the guide rail 23. The two ends of the lead screw 24 are respectively provided with left-handed threads and right-handed threads. The roller seats 22 of the two second limiting conveying rollers 21 are connected to the nuts. When the lead screw 24 rotates, due to the different threads on the lead screw 24, the two second limiting conveying rollers 21 can be driven to expand or contract the distance. Cooperating with the above-mentioned first limiting conveying roller 20, the first limiting conveying roller 20 can prevent the pipe from moving towards the middle during the conveying process, and the second limiting conveying roller 21 can prevent the pipe from rolling outwards, thus limiting the conveying direction of the pipe. Of course, another solution can also be adopted. Among the two first limiting conveying rollers 20, one is in contact with a pipe and rotates therewith, and the other first limiting conveying roller 20 is in contact with another pipe and rotates therewith. This avoids the wear caused by the inability to rotate when the two first limiting conveying rollers 20 are in contact with two pipes at the same time, and optimizes the device.

[0037] Such as Figure 1 、 Figure 2 and Figure 5As shown, the common conveying roller group includes a passive conveying roller group 3 and a second active conveying roller group, the second active conveying roller group includes a second upstream active conveying roller 4 and a second downstream active conveying roller 5 rotatably mounted on the conveying frame 2, the second upstream active conveying roller 4 cooperates with the first upstream active conveying roller 101, the second downstream active conveying roller 5 cooperates with the first downstream active conveying roller 102, and a second rotating power device for driving the second upstream active conveying roller 4 and the second downstream active conveying roller 5 to rotate is installed on the conveying frame 2, so that when conveying pipes, the traction force of the pipe conveying is further improved, the possibility of pipe slippage is reduced, and the efficiency is improved.

[0038] In this embodiment, preferably, the first rotary power device and the second rotary power device are a rotary motor 15, and the output shaft of the rotary motor 15 is equipped with a first driving wheel 6 and a second driving wheel 7, and the first driving wheel 6 is connected to the first upstream active conveying roller 101 and the first downstream active conveying roller 102 through a first belt transmission device or a first chain transmission device; the second driving wheel 7 is connected to the second upstream active conveying roller 4 and the second downstream active conveying roller 5 through a second belt transmission device or a second chain transmission device. Figure 4 As shown, the first driving wheel 6 is driven to the first driving wheel 103 through a conveyor belt, the first driving wheel 103 and the second driving wheel 104 are frictionally driven, and then the second driving wheel 104 is driven to the first upstream active conveying roller 101 and the first downstream active conveying roller 102 through a transmission belt, and the first driving wheel 6 drives the first upstream active conveying roller 101 and the first downstream active conveying roller 102 to rotate; the third driving wheel 8 and the fourth driving wheel 9 are rotatably installed on the conveying frame 2, the second driving wheel 7 is driven to the second downstream active conveying roller 5 through the third driving wheel 8, and is driven to the second upstream active conveying roller 4 through the fourth driving wheel 9. The third driving wheel 8 and the fourth driving wheel 9 are arranged so that the rotation direction of the second upstream active conveying roller 4 and the second downstream active conveying roller 5 is opposite to the rotation direction of the corresponding first upstream active conveying roller 101 and the first downstream active conveying roller 102, which effectively improves the conveying efficiency; the rotating motor 15 can adopt a servo motor, the servo motor controls the speed, the position accuracy is very accurate, and there is no self-rotation phenomenon when it stops, so the conveying of the pipe can be accurately controlled. Of course, the first rotary power device and the second rotary power device may also be driven by different rotary powers respectively.

[0039] like Figure 1 and Figure 2 As shown, the conveying frame 2 or the swing roller frame 10 is equipped with an upper limit device for pressing or releasing the pipe from above.

[0040] In this embodiment, the upper limit device includes a pressure plate 17 hinged on the conveying frame 2 or the swing roller frame 10, and a pressure roller 18 for pressing down the pipe is rotatably installed on the pressure plate 17. A limit deflection force device for driving the pressure plate 17 to swing is installed between the conveying frame 2 and the pressure plate 17 or the swing roller frame 10 and the pressure plate 17. The limit deflection force device adopts a second cylinder 19, and the second cylinder 19 is hinged on the frame. The piston rod of the second cylinder 19 is connected to the tail of the pressure plate 17. Therefore, when the piston rod of the second cylinder 19 is retracted, the pressure plate 17 swings around the hinge center on the conveying frame 2 or the swing roller frame 10, and the pressure roller 18 of the pressure plate 17 is lifted to facilitate the loading of the pipe. When the piston rod of the second cylinder 19 is extended, the flattened pressure roller 18 is lowered through the hinge center on the conveying frame 2 or the swing roller frame 10 to press the pipe. When conveying pipes, the pressure roller 18 presses the pipes and rotates with them, ensuring that the pipes will not tilt due to gravity during conveying and facilitating the loading of pipes; when the pressure plate 17 is hinged to the swing roller frame 10, the pressure plate 17 swings around a point on the swing roller frame 10 as the hinge center point, but when the swing roller frame 10 swings, the swing roller frame 10 also needs to rotate around the yaw center on the conveying frame 2, and the yaw center is the center of the rotating motor 15. The pressure plate 17 will move with the swing of the swing roller frame 10. When the swing roller frame 10 moves, the piston rod of the second cylinder 19 is in a free state and extends out, and at the same time, the angle between the second cylinder 19 and the frame also changes to meet the swing of the swing roller frame 10; of course, when the pressure plate 17 is hinged to the conveying frame 2, the hinge center is coaxial with the center of the rotating motor 15, so that the swing of the swing roller frame 10 will not affect the lifting or pressing down of the pressure plate 17.

[0041] In this embodiment, the number of the swing conveying devices is two or more sets and they are arranged in parallel, so that two or more pipes can be conveyed synchronously. For further optimization, a synchronous connecting rod 16 is arranged between each swing roller frame 10, wherein: Figure 1 The synchronous connecting rod 16 is omitted, and each swing roller frame 10 is driven by a set of swing power devices. The synchronous connecting rod 16 is U-shaped, so that the swing roller frames 10 can swing synchronously and avoid collision with the synchronous connecting rod 16 when the pressure plate 17 is lifted or pressed down. Each set of swing conveying devices is also provided with a synchronous first upstream active conveying roller 101, a first downstream active conveying roller 102, a second upstream active conveying roller 4 and a second downstream active conveying roller 5 synchronous shaft, so that the device can be compact in structure, reduce costs and improve conveying efficiency when conveying pipes.

[0042] Working principle of the present invention: First, the second cylinder 19 drives the pressing plate 17 to lift, and the pipe is loaded onto the passive conveying roller group 3 of the conveying rack 2. The head of the pipe is at the upstream conveying station 11. Then, the second cylinder 19 drives the pressing plate 17 to press down the pipe. At this time, the piston rod of the first cylinder 13 extends, and the crank block 14 is subjected to the pressure of the extending piston rod. The swing roller frame 10 starts to swing from the downstream conveying station 12 by lifting around the center of the rotating motor 15, so that the first upstream active conveying roller 101 contacts the pipe. At the same time, the piston rod of the second cylinder 19 extends and swings at a certain angle, and the pressing plate 17 and the pressing roller 18 move along with the swing roller frame 10. Then, the rotating motor 15 drives the first transmission wheel 103 through the first driving wheel 6, and then drives the first upstream active conveying roller 101 and the first downstream active conveying roller 102 to rotate through the friction transmission between the first transmission wheel 103 and the second transmission wheel 104. At the same time, the second driving wheel 7 drives the second upstream active conveying roller 4 and the second downstream active conveying roller 5 to rotate through the third transmission wheel 8 and the fourth transmission wheel 9. In this way, the first upstream active conveying roller 101 and the second upstream active conveying roller 4 convey the pipe. When the pipe is about to finish conveying, the tail of the pipe is conveyed past the upstream conveying station 11, and the piston rod of the first cylinder 13 retracts, so that the first downstream active conveying roller 102 of the swing roller frame 10 swings to the downstream conveying station 12, and the pressing plate 17 and the pressing roller 18 move along. At this time, the first downstream active conveying roller 102 and the second downstream active conveying roller 5 continue to convey the pipe, so that the remaining part of the tail of the pipe can be conveyed. After that, the above steps are repeated. The pipes upstream will push the pipes downstream during conveying, thus completing continuous conveying.

[0043] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and modifications made to the technical solution of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A swing conveying device for pipes, Features: The conveying frame comprises a conveying frame, on which a plurality of carrying conveying rollers for carrying and conveying pipes are rotatably mounted, on which a swinging roller frame is swingably mounted, and between the swinging roller frame and the conveying frame, a swinging power device for driving the swinging roller frame to reciprocate and swing is arranged, and the swinging roller frame is driven by the swinging power device to switch back and forth between an upstream conveying station and a downstream conveying station, and a first active conveying roller for actively conveying pipes is rotatably mounted on the swinging roller frame, and a first rotating power device for driving the first active conveying roller to rotate is installed on the swinging roller frame, and the active conveying roller cooperates with the carrying conveying roller to roll and convey the pipes when in the upstream conveying station or the downstream conveying station; the first active conveying roller comprises a first upstream active conveying roller and a first downstream active conveying roller, and the first upstream active conveying roller and the first downstream active conveying roller are respectively located on the upstream side and the downstream side of the swinging center of the swinging roller frame, and the first upstream active conveying roller and the first downstream active conveying roller are both connected to the first rotating power device The output end of the force device is connected by transmission; when in the upstream conveying station, the first upstream active conveying roller cooperates with the load-bearing conveying roller to roll and convey the pipe, and when in the downstream conveying station, the first downstream active conveying roller cooperates with the load-bearing conveying roller to roll and convey the pipe; the load-bearing conveying roller includes a common conveying roller group and a limit conveying roller group, the common conveying roller group is rotatably installed on the conveying frame to bear the pipe, and the limit conveying roller group is installed on the conveying frame to limit the left and right sides of the pipe; the common conveying roller group includes a passive conveying roller group and a second active conveying roller group, the second active conveying roller group includes a second upstream active conveying roller and a second downstream active conveying roller rotatably installed on the conveying frame, the second upstream active conveying roller cooperates with the first upstream active conveying roller, the second downstream active conveying roller cooperates with the first downstream active conveying roller, and the conveying frame is equipped with a second rotating power device that drives the second upstream active conveying roller and the second downstream active conveying roller to rotate.

2. A swing conveying device for pipes as claimed in claim 1, Features: The position-limiting conveying roller group comprises a first position-limiting conveying roller and a second position-limiting conveying roller. The first position-limiting conveying roller and the second position-limiting conveying roller are respectively located at two sides of the pipe and constrain the pipe.

3. A swing conveying device for pipes as claimed in claim 2, Features: The roller seat of the first position-limiting conveying roller and / or the roller seat of the second position-limiting conveying roller are installed on the conveying frame for transverse sliding, and the conveying frame is installed with a transverse adjustment mechanism for adjusting the roller seat of the first position-limiting conveying roller and / or the roller seat of the second position-limiting conveying roller.

4. A swing conveying device for pipes as claimed in claim 1, Features: The first rotary power device and the second rotary power device are a rotary motor. A first driving wheel and a second driving wheel are installed on the output shaft of the rotary motor. The first driving wheel is drivingly connected to the first upstream driving conveying roller and the first downstream driving conveying roller through a first belt transmission device or a first chain transmission device; the second driving wheel is drivingly connected to the second upstream driving conveying roller and the second downstream driving conveying roller through a second belt transmission device or a second chain transmission device.

5. A swinging conveying device for pipes according to any one of claims 1 to 4, characterized in that: An upper limit device for pressing or releasing the pipe from above is installed on the conveying frame or the swinging roller frame.

6. A swinging conveying device for pipes according to claim 5, characterized in that: The upper limit device includes a pressing plate hinged to the conveying frame or the swinging roller frame. A pressing roller for pressing the pipe downward is rotatably installed on the pressing plate. A limit swinging power device for driving the pressing plate to swing is installed between the conveying frame and the pressing plate or between the swinging roller frame and the pressing plate.

7. A swinging conveying device for pipes according to claim 6, characterized in that: The number of the swinging conveying devices is two or more and they are arranged in parallel. Synchronous connecting rods are provided between the swinging roller frames, and each swinging roller frame is driven by a set of swinging power devices.

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