Automatic pipe plugger

Abstract

The present application relates to a kind of automatic pipe plug machine, including loading shed frame, loading shed frame has loading conveyor belt, loading conveyor belt is provided with several baffle;Loading shed frame is provided with front material baffle in the one side of loading conveyor belt conveying direction, and loading shed frame is provided with rear material baffle in the other side of loading conveyor belt conveying direction;Loading shed frame is provided with plug device and pipe plug distribution device in the same side of front material baffle;Plug device has pipe plug holding part for picking up pipe plug from pipe plug distribution device and carries out plug;Loading shed frame is provided with pipe positioning device in the position corresponding with pipe plug holding part;Pipe positioning device includes side material baffle mechanism and side pressure material mechanism relatively arranged along the conveying direction of loading conveyor belt;Side material baffle mechanism has liftable side material baffle, and side pressure material mechanism has liftable and movable side pressure material plate along the conveying direction of loading conveyor belt.This scheme can reduce manual labor intensity, improve production efficiency, and the scope of application is wide.

Description

Technical Field

[0001] This invention belongs to the field of parts assembly equipment technology, and specifically relates to an automatic pipe plugging machine. Background Technology

[0002] Currently, for structures such as railings, aluminum profiles and tubing are commonly used. After these tubings are formed, plugs (also known as plugging heads) need to be installed at the ends during the packaging process in the workshop. This process is generally done manually. Due to the large number of tubings that need to be handled manually, the labor intensity of workers is high, production efficiency is low, and staff turnover is high.

[0003] To address this issue, some automated equipment has emerged, but none are entirely perfect. For example, Chinese invention patent application CN108581930A uses an inclined discharge box to stack pipes, allowing them to slide down under their own weight into a suitably wide opening, thus separating the pipes one by one for plugging. The drawback of this solution is its severe limitation on pipe shape; it is more suitable for processing round pipes, but may not be able to slide down square pipes, and is completely unsuitable for square pipes with a large sealing plate welded to one end. Furthermore, the fixed size of the discharge box also limits the length of the pipes that can be plugged. Therefore, a more versatile and efficient automatic pipe plugging machine is needed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic pipe plugging machine that can replace manual plugging work and is applicable to various types of pipes with different lengths and cross-sectional shapes.

[0005] According to the technical solution of the present invention, the present invention provides an automatic pipe plugging machine, including a feeding rack with a feeding conveyor belt on the feeding rack and a plurality of partitions for separating pipes on the feeding conveyor belt; a front baffle plate is provided on one side of the feeding rack in the conveying direction of the feeding conveyor belt, and a rear baffle plate is provided on the other side of the feeding rack in the conveying direction of the feeding conveyor belt; a plugging device and a plug distributing device are provided on the same side of the feeding rack as the front baffle plate; the plugging device has a plug holding part for picking up plugs from the plug distributing device and plugging them; a pipe positioning device is provided on the feeding rack at a position corresponding to the plug holding part; the pipe positioning device includes a side baffle mechanism and a side pressing mechanism arranged opposite to each other in the conveying direction of the feeding conveyor belt; the side baffle mechanism has a liftable side baffle plate, and the side pressing mechanism has a liftable and movable side pressing plate in the conveying direction of the feeding conveyor belt.

[0006] Furthermore, the side baffle mechanism includes a side baffle limiting part connected to the feeding shed, a side baffle plate and the side baffle limiting part being slidably connected to each other, and a side baffle lifting cylinder connected to the side baffle plate; the side pressing mechanism includes a side pressing lifting slide rail connected to the feeding shed, a side pressing pushing cylinder being slidably connected to the side pressing lifting slide rail, the output end of the side pressing pushing cylinder facing the side baffle plate and connected to the side pressing plate, and the side pressing pushing cylinder being connected to the side pressing lifting cylinder.

[0007] Furthermore, several partitions constitute multiple sets of partition pairs, each set of partition pairs includes two adjacent partitions and the distance between the two partitions is greater than the width of the pipe; the distance between two adjacent sets of partition pairs is greater than the thickness of the side baffle plate and the side pressure plate.

[0008] Furthermore, the front baffle is a horizontally arranged strip plate, with one end of the front baffle close to the upstream end of the feeding conveyor belt and the other end close to the pipe plug holding part.

[0009] Preferably, it also includes a back gauge device, which includes a back gauge longitudinal frame and a back gauge transverse frame connected to each other, the back gauge transverse frame extending toward the pipe plug holding part; a back gauge plate is connected to the back gauge transverse frame via a back gauge translation mechanism.

[0010] Furthermore, the back gauge translation mechanism includes a translation plate, which is slidably connected to the back gauge crossbeam via a translation slide rail; a translation motor is provided on the translation plate, a gear is provided at the output end of the translation motor, and a rack is provided on the back gauge crossbeam, with the gear and rack meshing in a matching manner.

[0011] Preferably, the back gauge device further includes a back gauge lifting mechanism, one end of which is connected to the translation plate and the other end of which is connected to the back gauge plate.

[0012] Furthermore, the pipe plug dispensing device includes a vibratory plate, the output end of which extends to the pipe plug supply bracket via a pipe plug conveying frame. The pipe plug supply bracket is slidably disposed in the pipe plug supply slide rail and is connected to a pipe plug supply cylinder. The pipe plug supply bracket has a pipe plug receiving groove that matches the pipe plug conveying frame, and the pipe plug receiving groove can only accommodate one pipe plug.

[0013] Furthermore, the plugging device includes a push cylinder that is fixed relative to the position of the feeding shed. The output end of the push cylinder faces the rear baffle and is connected to a rotary cylinder. The output end of the rotary cylinder faces the plug distribution device and is vertically connected to a plug removal cylinder. The end of the plug removal cylinder is connected to a plug holding part.

[0014] Furthermore, a discharge shed is provided at the end of the conveying direction of the feeding conveyor belt.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0016] 1. The automatic pipe plugging machine of the present invention efficiently replaces manual plugging, effectively reducing the labor intensity of workers and improving production efficiency.

[0017] 2. The automatic pipe plugging machine of the present invention uses a conveyor belt and a plate-like structure for positioning. The pipe is placed on the conveyor belt and only moves horizontally without rolling. Therefore, it can be applied to pipes of various cross-sections, including round pipes and square pipes. Furthermore, it can also be applied to fence square pipes, for example, which have end caps. The end caps can be located between or outside multiple conveyor belts.

[0018] 3. The automatic pipe plugging machine of the present invention preferably has a movable rear baffle plate, so that it can be applied to pipes of different lengths as needed.

[0019] 4. The automatic pipe plugging machine of the present invention achieves the positioning of the pipe before plugging by the cooperation of the liftable side baffle plate and the liftable and movable side pressure plate, ensuring that the pipe is in the correct position without deviation. At the same time, the pipe is held stably by the side baffle plate and the side pressure plate during the plugging process. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention.

[0021] Figure 2 yes Figure 1 The above-view structural diagram of the embodiment is shown.

[0022] Figure 3 yes Figure 1 Enlarged view of the middle plugging device, pipe plug dispensing device, and pipe positioning device.

[0023] Figure 4 yes Figure 3 A cross-sectional view of the plug support bracket and related parts in the structure shown.

[0024] Figure 5 yes Figure 1 A partial enlarged view of the middle and rear gutter device.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Feeding shed; 101. Feeding conveyor; 102. Partition; 103. Partition pair; 104. Feeding conveyor motor;

[0027] 2. Front baffle plate;

[0028] 3. Back gauge device; 301. Back gauge plate; 302. Back gauge longitudinal frame; 303. Back gauge transverse frame; 31. Back gauge translation mechanism; 311. Translation plate; 312. Translation slide rail; 313. Translation motor; 314. Gear; 315. Rack; 32. Back gauge lifting mechanism;

[0029] 4. Plug-off device; 401. Plug-holding part; 402. Propulsion cylinder; 403. Rotary cylinder; 404. Plug-removing cylinder; 405. Propulsion slide rail;

[0030] 5. Pipe plug dispensing device; 501. Vibratory feeder; 502. Pipe plug conveyor frame; 503. Pipe plug supply bracket; 504. Pipe plug receiving groove; 505. Pipe plug supply slide rail; 506. Pipe plug supply cylinder;

[0031] 6. Pipe positioning device; 61. Side baffle mechanism; 611. Side baffle plate; 612. Side baffle limiting part; 613. Side baffle lifting cylinder; 62. Side pressing mechanism; 621. Side pressing plate; 622. Side pressing lifting slide rail; 623. Side pressing pushing cylinder; 624. Side pressing lifting cylinder;

[0032] 7. Discharge shed; 701. Discharge conveyor belt;

[0033] A: Pipe; B: Pipe plug. Detailed Implementation

[0034] This invention provides an automatic pipe plugging machine, particularly suitable for square pipes used in fencing (also known as railing material), thereby replacing manual labor in pipe plug installation, reducing the workload of workers, and improving production efficiency. The structure of the square pipe for fencing is as follows: Figure 1 As shown in A1 and A2, the main body is a square tube, and the end can be welded with a sealing plate as a base, or as shown in A3, it has additional plates or other structures on the tube body. The difficulty in processing this type of tube is that it is difficult to roll or slide like a round tube. It can be imagined that this solution can be used for this type of square tube, and therefore can also be used for round tubes, as well as tubes with other cross-sectional shapes.

[0035] Please see Figure 1 , Figure 2This invention discloses an automatic pipe plugging machine, comprising a feeding rack 1, on which a feeding conveyor belt 101 is mounted, for example, having three parallel conveyor belts, and a matching feeding conveyor motor 104 and transmission components (such as sprockets and chains), thereby driving the feeding conveyor belt 101 to rotate (the conveying direction in the figure is to the right). This type of powered conveyor belt rack is prior art, therefore the specific structure of the rack and the driving and transmission components of the conveyor belt will not be described in detail here. The feeding conveyor belt 101 of this invention is covered with a plurality of partitions 102 along its length. The partitions 102 are used to space pipes A at intervals. The plurality of partitions 102 form multiple sets of partition pairs 103, two to a group. The distance between the two partitions 102 in a set of partition pairs 103 is greater than the width of the pipe A, thereby accommodating one pipe A.

[0036] The feeding rack 1 is provided with a front baffle plate 2 on one side of the feeding conveyor belt 101 (front in the figure) for positioning the front end of the pipe A; the feeding rack 1 is provided with a rear baffle plate 301 on the other side of the feeding conveyor belt 101 (rear in the figure) for pushing against the rear of the pipe A when the front end of the pipe A is plugged.

[0037] The feeding rack 1 is provided with a plugging device 4 and a pipe plug distributing device 5 on the same side as the front baffle plate 2. The pipe plug distributing device 5 is used to neatly arrange and convey multiple pipe plugs B placed therein over a short distance; the plugging device 4 has a pipe plug holding part 401, which is used to pick up the pipe plug B from the end of the pipe plug distributing device 5 and plug it.

[0038] The feeding rack 1 is equipped with a pipe positioning device 6 at a position corresponding to the pipe plug holding part 401. The pipe positioning device 6 includes a side baffle mechanism 61 and a side pressing mechanism 62 arranged opposite each other along the conveying direction of the feeding conveyor belt 101. The side baffle mechanism 61 has a liftable side baffle plate 611, and the side pressing mechanism 62 has a liftable and movable side pressing plate 621 along the conveying direction of the feeding conveyor belt 101. The positions of the side baffle plate 611 and the side pressing plate 621 correspond to the two sides of the baffle pair 103 during plugging, i.e., the gap positions on both sides of the pipe A. Therefore, the distance between two adjacent baffle pairs 103 needs to be greater than the thickness of the side baffle plate 611 and the side pressing plate 621. Multiple sets of the pipe positioning device 6 can be provided, for example... Figure 1 , Figure 2 In the embodiment where the feeding conveyor belt 101 shown has three parallel conveyor belts, the pipe positioning device 6 is set in front of or behind the two front conveyor belts, with a total of two sets, so as to more stably position and clamp the pipe 1 from front to back.

[0039] Please see Figure 3The side baffle mechanism 61 includes a side baffle limiting part 612 connected to the feeding shed 1. The side baffle plate 611 is slidably connected to the side baffle limiting part 612. For example, the side baffle limiting part 612 is a sleeve structure in which the side baffle plate 611 is located; or, the side baffle limiting part 612 is a slide rail structure and is movably connected to the side baffle plate 611 through a slider structure; etc. The lower end of the side baffle plate 611 is connected to a side baffle lifting cylinder 613, which controls the lifting and lowering of the side baffle plate 611 to control whether it is higher than the feeding conveyor belt 101 and forms an obstruction to the pipe A.

[0040] The side-pressing mechanism 62 includes a side-pressing lifting slide rail 622 connected to the feeding shed 1. A side-pressing pushing cylinder 623 is slidably connected to the side-pressing lifting slide rail 622. The output end of the side-pressing pushing cylinder 623 faces the side baffle plate 611 and is connected to the side-pressing plate 621. The side-pressing pushing cylinder 623 is connected to a side-pressing lifting cylinder 624. The side-pressing lifting cylinder 624 is used to control the lifting and lowering of the side-pressing plate 621, controlling whether it is higher than the feeding conveyor belt 101. The pressing pushing cylinder 623 is used to control the translation of the side-pressing plate 621, controlling whether it moves towards the side baffle plate 611 to push and clamp the pipe A. It is conceivable that in another embodiment, a transverse slide rail is used to slidably connect a longitudinal lifting cylinder, and the lifting cylinder is pushed along the slide rail by a transverse pushing cylinder, which can also achieve the same effect. Its working principle is as follows: In the initial state, both the side baffle plate 611 and the side pressure plate 621 are in a low position, with the side pressure plate 621 being relatively far away from the side baffle plate 611; when a pipe A is conveyed to the vicinity of the plugging position, the side baffle plate 611 rises, and the pipe A continues to move a short distance to the vicinity of the side baffle plate 611. The side pressure plate 621 rises and moves to the right, pushing and clamping the pipe A, and then the plugging device 4 performs plugging; after plugging is completed, the side baffle plate 611 and the side pressure plate 621 are reset; this cycle is repeated.

[0041] The front baffle 2 is a horizontally arranged strip plate. One end of the front baffle 2 is close to the upstream end of the feeding conveyor belt 101, and the other end is close to the plugging position (i.e., the position of the pipe plug holding part 401). In use, the pipe A to be plugged is placed on the feeding conveyor belt 101 manually or by the front conveyor belt, with the front end of the pipe A against the front baffle 2, ensuring that the front end of the pipe A is in the required position when it is conveyed to the plugging position. Furthermore, for this purpose, the front baffle 2 can be set to be tilted forward on the left, forming a small angle with the feeding rack 1. This allows for more flexible placement, and as the feeding conveyor belt 101 moves, pipes with excessively forward front ends will be pushed away by the front baffle 2.

[0042] The rear baffle 30 can also be a similar elongated plate, but its right end must at least cover the jamming position. Preferably, please refer to... Figure 5The back gauge plate 30 is movably mounted via the back gauge device 3. The back gauge device 3 includes a back gauge longitudinal frame 302 and a back gauge transverse frame 303 connected vertically from top to bottom. The back gauge transverse frame 303 is located above the feeding conveyor belt 101 and extends toward the pipe plug holding part 401. The back gauge plate 301 is connected to the back gauge transverse frame 303 via a back gauge translation mechanism 31. Specifically, the back gauge translation mechanism 31 includes a translation plate 311. The back gauge transverse frame 303 has a square frame structure, and a translation slide rail 312 is provided on the upper surface of the square frame structure of the back gauge transverse frame 303. The translation plate 311 is slidably connected to the translation slide rail 312. A translation motor 313 is mounted on the translation plate 311. The output end of the translation motor 313 passes downward through the translation plate 311 and has a gear 314 at its end. A rack 315 is provided inside the square frame structure of the back gauge crossbar 303. The gear 314 and the rack 315 mesh in a matching manner. The back gauge plate 301 is connected to the translation plate 311. Its working principle is that the translation motor 313 drives the gear 314 to rotate and travel on the rack 315, thereby driving the translation plate 311 to move back and forth, adjusting the distance between the back gauge plate 301 and the pipe plug holding part 401 to match pipes of different lengths A. For example... Figure 1 , Figure 2 As shown, the lengths of pipes A1, A2, and A3 increase progressively, and they are all applicable as long as their ends are within the adjustable range of the back baffle 301.

[0043] More preferably, in the back gauge device 3, a back gauge lifting mechanism 32 is provided between the translation plate 311 and the back gauge plate 301. The back gauge lifting mechanism 32 is, for example, a cylinder. One end of the back gauge lifting mechanism 32, which can move up and down relative to the translation plate 311, is connected to the translation plate 311, and the other end of the back gauge lifting mechanism 32 is connected to the back gauge plate 301. Its working principle is that the back gauge plate 301 is lowered to the required position by the cylinder only when plugging is performed to provide a blocking effect. At other times, it is raised to avoid affecting the back gauge translation mechanism 31's forward and backward adjustment process and to avoid obstructing the movement of the pipe A.

[0044] Please see Figure 3 , Figure 4The plug dispensing device 5 includes a vibratory feeder 501. The output end of the vibratory feeder 501 is connected to a plug conveyor 502 (e.g., a plug portion that accommodates plug B and a sheet-like end cap portion that supports plug B on both sides). These two components are mature existing technology products, and their principles will not be described in detail. A large number of plugs B are placed in the vibratory feeder 501, which can arrange the plugs B one by one through vibration and output them through the plug conveyor 502. The plug dispensing device 5 of the present invention also includes a plug feeding bracket 503. The plug conveyor 502 extends to the plug feeding bracket 503. The plug feeding bracket 503 has a plug receiving groove 504 that matches and can be aligned with the plug conveyor 502. The plug receiving groove 504 can only accommodate one plug B. The plug feeding bracket 503 is slidably disposed in the plug feeding slide rail 505, and the plug feeding bracket 503 is connected to a plug feeding cylinder 506. Its working principle is as follows: In the initial state, the piston rod of the supply cylinder 506 is in the retracted state, and the tube plug receiving groove 504 is aligned with the tube plug conveying frame 502. As the vibratory plate 501 works, the first tube plug B in a row of tube plugs B enters the tube plug receiving groove 504. The supply cylinder 506 pushes the supply bracket 503 to the left to separate the tube plug B for the plugging device 4 to pick up. During this process, the supply bracket 503 will always block the next tube plug B. After picking up, the supply bracket 503 resets, and the next tube plug B enters the tube plug receiving groove 504, and so on in a cycle.

[0045] The plugging device 4 includes a push cylinder 402 fixed relative to the loading rack 1. The output end of the push cylinder 402 faces the rear baffle 301 and is connected to a rotary cylinder 403. To ensure a smooth push with the force applied directly to the pipe opening, the rotary cylinder 403 is slidably connected to the fixed machine base via a horizontally arranged push slide rail 405. The output end of the rotary cylinder 403 faces the plug dispensing device 5 and is vertically connected to a plug-removing cylinder 404. The end of the plug-removing cylinder 404 is vertically connected to a plug-holding part 401. The plug-holding part 401 is preferably a vacuum suction cup, but can also be a gripper device, etc., any structure capable of holding and releasing the plug B is acceptable. Its working principle is as follows: In the initial state, all cylinders are in the retracted state, and the plug-removing cylinder 404 and the plug-holding part 401 face downwards; the plug-supply bracket 503 pushes a plug B to directly below the plug-holding part 401, the plug-removing cylinder 404 pushes downwards, the plug-holding part 401 (taking a vacuum suction cup as an example) adheres to the plug B, the plug-removing cylinder 404 retracts, and the plug B is removed from the plug receiving groove 504; the rotary cylinder 403 rotates, and the plug-removing cylinder 404 and the plug-holding part 401 are rotated to face backwards and aligned with the opening of the clamped and fixed pipe A; the push cylinder 402 pushes backwards, driving the rotary cylinder 403, the plug-removing cylinder 404 and the plug-holding part 401 to move backwards together, so that the plug B is pushed into the opening of the pipe; then the plug-holding part 401 releases the plug B, and all components are reset; this cycle is repeated.

[0046] Furthermore, a discharge shed 7 is provided at the end of the conveying direction of the feeding conveyor belt 101, and similar to the feeding shed 1, a discharge conveyor belt 701 is provided on the discharge shed 7. For example Figure 1 , Figure 2 In the embodiment where the feeding conveyor belt 101 has three parallel conveyor belts, the discharging conveyor belt 701 preferably has two conveyor belts located between the three conveyor belts, thereby stably realizing the transfer process of pipe A from the feeding conveyor belt 101 to the discharging conveyor belt 701. The discharging conveyor belt 701 may be optional and not powered (drive motor, etc.), relying solely on the feeding conveyor belt 101 to push the pipe A for stacking; preferably, it is also powered and continues to transport the pipe A after it has been plugged, for example, to continue subsequent packaging, boxing, etc.

[0047] Taking the above specific embodiment as an example, the overall working principle of the automatic pipe plugging machine of the present invention is as follows:

[0048] Step 1: Manually place the fence square tube roughly into the partition pair 103 on the feeding conveyor belt 101, and gently push the fence square tube forward until the front end contacts the front baffle plate 2.

[0049] Step 2: The feeding conveyor belt 101 conveys the tube to the position close to the plugging position, and the side baffle plate 611 rises to perform plugging and positioning; after the square tube continues to be conveyed to the position (contacting or about to contact the side baffle plate 611), the side pressure plate 621 rises and moves to press the square tube; the rear baffle plate 301 moves to the end of the square tube, restricting the square tube in three directions, and the positioning is completed.

[0050] Step 3: The plugging device 4 uses a vacuum suction cup (plug holding part 401) to vertically pick up the material. After picking up the material, it rotates to the plugging direction (the angle between the picking direction and the plugging direction is 90°). The push cylinder 402 pushes the plug B horizontally into the square tube. The vacuum suction cup is released, each cylinder is reset, and the plugging action is completed.

[0051] Step 4: After the plugging is completed, the square tube is transferred to the discharge shed and unloaded manually.

[0052] In one specific embodiment, the feeding shed 1 is 2.8m long and can hold 20 pipes A at intervals. In the plugging device 3, the pushing cylinder 402 is model SC50*50, the rotating cylinder 403 is model HRQ50, and the plug-removing cylinder 404 is model TCL20*50. In the pipe plug dispensing device 5, the vibratory plate 501 can hold 400-500 pipe plugs B at a time, and the plug-feeding cylinder 506 is model TN25*50. In the side pressing mechanism 62, the side pressing lifting cylinder 624 is model SC320*82, and the side pressing pushing cylinder 623 is model TN25*20. In the side blocking mechanism 61, the side blocking lifting cylinder 613 is model MA32*80. The discharge shed 7 is 1.6m long. The average time to plug one square enclosure pipe is approximately 6 seconds.

[0053] It should be noted that the above description only illustrates the main structure of some specific embodiments of the present invention. Other required or optional specific structures can be set based on existing technology and actual needs. For example, each cylinder used in the above embodiments is connected to compressed air and corresponding pipelines, valve control systems; the cylinders can be replaced with oil cylinders, electric cylinders, etc., which can achieve basically the same technical effect; the solenoid valves connected to each cylinder, as well as electrical equipment such as motors, are all connected to the power supply through an electrical box and can be automatically or manually controlled; in order to make the position of each component appropriate and stable, this automatic plugging machine has a frame structure to raise, support, and fix the corresponding components; etc.

[0054] In summary, the automatic pipe plugging machine of the present invention efficiently replaces manual plugging, effectively reducing the labor intensity of workers and improving production efficiency. It is applicable to various types of pipes, including round and square pipes, with different cross-sections, lengths, and components such as sealing plates. Furthermore, the pipe is positioned correctly before plugging by the cooperation of a liftable side baffle and a liftable and movable side pressure plate, ensuring accurate and unbiased pipe positioning. Simultaneously, the side baffle and side pressure plate provide stable clamping during the plugging process.

Claims

1. An automatic pipe plugging machine, characterized in that, It includes a feeding rack (1), which has a feeding conveyor belt (101) and a plurality of partitions (102) for separating the pipes (A) on the feeding conveyor belt (101). The feeding rack (1) is provided with a front baffle (2) on one side of the feeding conveyor belt (101) in the conveying direction, and a rear baffle (301) is provided on the other side of the feeding conveyor belt (101) in the conveying direction. The feeding rack (1) is provided with a plugging device (4) and a pipe plug distributing device (5) on the same side of the front baffle plate (2); the plugging device (4) has a pipe plug holding part (401) for picking up the pipe plug (B) from the pipe plug distributing device (5) and plugging it. The feeding rack (1) is provided with a pipe positioning device (6) at a position corresponding to the pipe plug holding part (401); the pipe positioning device (6) includes a side baffle mechanism (61) and a side pressing mechanism (62) arranged opposite to each other along the conveying direction of the feeding conveyor belt (101); the side baffle mechanism (61) has a liftable side baffle plate (611), and the side pressing mechanism (62) has a liftable and movable side pressing plate (621) along the conveying direction of the feeding conveyor belt (101). It also includes a back gauge device (3), which includes a back gauge longitudinal frame (302) and a back gauge transverse frame (303) connected to each other. The back gauge transverse frame (303) extends toward the pipe plug holding part (401). The back gauge plate (301) is connected to the back gauge transverse frame (303) through a back gauge translation mechanism (31). The back gauge translation mechanism (31) includes a translation plate (311), which is slidably connected to the back gauge crossbeam (303) via a translation slide rail (312); a translation motor (313) is provided on the translation plate (311), a gear (314) is provided at the output end of the translation motor (313), and a rack (315) is provided on the back gauge crossbeam (303), wherein the gear (314) and the rack (315) mesh in a matching manner; The back gauge device (3) also includes a back gauge lifting mechanism (32). One end of the back gauge lifting mechanism (32) that can move up and down is connected to the translation plate (311), and the other end of the back gauge lifting mechanism (32) is connected to the back gauge plate (301).

2. The automatic pipe plugging machine as described in claim 1, characterized in that, The side baffle mechanism (61) includes a side baffle limiting part (612) connected to the feeding shed (1), the side baffle plate (611) is slidably connected to the side baffle limiting part (612), and the side baffle plate (611) is connected to a side baffle lifting cylinder (613). The side pressing mechanism (62) includes a side pressing lifting slide rail (622) connected to the feeding shed (1). A side pressing pushing cylinder (623) is slidably connected to the side pressing lifting slide rail (622). The output end of the side pressing pushing cylinder (623) faces the side baffle plate (611) and is connected to the side pressing plate (621). The side pressing pushing cylinder (623) is connected to the side pressing lifting cylinder (624).

3. The automatic pipe plugging machine as described in claim 1, characterized in that, The partitions (102) constitute multiple sets of partition pairs (103), each set of partition pairs (103) includes two adjacent partitions (102) and the distance between the two partitions (102) is greater than the width of the pipe (A); the distance between two adjacent sets of partition pairs (103) is greater than the thickness of the side baffle (611) and the side pressure plate (621).

4. The automatic pipe plugging machine as described in claim 1, characterized in that, The front baffle (2) is a horizontally arranged strip plate. One end of the front baffle (2) is close to the upstream end of the feeding conveyor belt (101), and the other end of the front baffle (2) is close to the pipe plug holding part (401).

5. The automatic pipe plugging machine as described in any one of claims 1-4, characterized in that, The pipe plug dispensing device (5) includes a vibratory plate (501), the output end of which extends through the pipe plug conveying frame (502) to the pipe plug supply bracket (503). The pipe plug supply bracket (503) is slidably disposed in the pipe plug supply slide rail (505), and the pipe plug supply bracket (503) is connected to a pipe plug supply cylinder (506). The pipe plug supply bracket (503) has a pipe plug receiving groove (504) that matches the pipe plug conveying frame (502), and the pipe plug receiving groove (504) can only accommodate one pipe plug (B).

6. The automatic pipe plugging machine as described in any one of claims 1-4, characterized in that, The plugging device (4) includes a push cylinder (402) that is fixed relative to the position of the feeding rack (1). The output end of the push cylinder (402) faces the rear baffle (301) and is connected to a rotary cylinder (403). The output end of the rotary cylinder (403) faces the pipe plug dispensing device (5) and is vertically connected to a plug removal cylinder (404). The end of the plug removal cylinder (404) is connected to the pipe plug holding part (401).

7. The automatic pipe plugging machine as described in any one of claims 1-4, characterized in that, A discharge shed (7) is provided at the end of the conveying direction of the feeding conveyor belt (101).

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