Reciprocating type packaging machine device for marking, conveying and butting female bent pipe fittings

Abstract

The utility model discloses a female bent pipe fitting marking, conveying and butt-joint reciprocating type packaging machine device which is formed by combining a transition ball group, a ball group fixing frame, a marking belt conveying line, an acceleration connection belt conveying line, a limiting plate adjustable fixing frame, a polytetrafluoroethylene limiting plate and the like. And the transition ball group is arranged between the marking belt conveying line and the acceleration connection belt conveying line to perform transition on the conveying of the female bent pipe, so that the marking, conveying and butt joint reciprocating type packaging machine device for the female bent pipe is high in practicability. The feeding device has the advantages that the feeding device is novel in design and reasonable in conception, mainly has the function of feeding marked female bent pipe fittings into a reciprocating type packaging machine to be packaged in a vertical state, and meanwhile has the function of increasing the distance between the female bent pipe fittings to improve the packaging stability; and the structure is simple, the cost is saved, the dependence on the environment is extremely small, and the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of PPR pipe fitting packaging, in particular to a female bend pipe fitting marking, conveying and docking reciprocating packaging machine device. Background Art

[0002] During the packaging process, the female bend pipe fittings need to be loaded and conveyed first, and then laser marked and finally individually packaged by a reciprocating packaging machine. When the female bend pipe fittings are sent to the reciprocating packaging machine for individual packaging, if they are in a lying position, due to the shape characteristics of the female bend pipe fittings, the lying female bend pipe fittings will roll over when entering the reciprocating packaging machine for packaging, resulting in changes in the spacing between the female bend pipe fittings. The female bend pipe fittings will also be cut by the cutter when the reciprocating packaging machine is packaging because of the uneven spacing, causing the equipment to stop. On the one hand, it affects the packaging efficiency, and on the other hand, it will cause certain damage to the equipment and damage to the product, resulting in product scrapping. Utility Model Content

[0003] The purpose of the utility model is to solve the problem that when the female bend pipe fittings are fed into a reciprocating packaging machine for individual packaging, if they are in a lying position, due to the shape characteristics of the female bend pipe fittings, the lying female bend pipe fittings will roll over when entering the reciprocating packaging machine for packaging, thereby causing changes in the spacing between the female bend pipe fittings. The female bend pipe fittings will also be cut by a cutter when the reciprocating packaging machine is packaging due to the uneven spacing, causing the equipment to stop. On the one hand, this affects the packaging efficiency, and on the other hand, it will cause certain damage to the equipment, damage to the product, and cause the product to be scrapped.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A female curved pipe marking, conveying and docking reciprocating packaging machine device comprises a centrifugal material distribution conveyor, a laser marking machine, a reciprocating packaging machine, an accelerating connection belt conveyor line and a marking belt conveyor line. The discharge port of the centrifugal material distribution conveyor is docked with one end of the marking belt conveyor line, and the other end of the marking belt conveyor line is docked with one end of the accelerating connection belt conveyor line through a transition component, and the other end of the accelerating connection belt conveyor line is docked with the reciprocating packaging machine. The laser marking machine is arranged above the marking belt conveyor line for marking the female curved pipes being transported. The accelerating connection belt conveyor line is provided with a limit plate adjustable fixing frame, and the limit plate adjustable fixing frame is fixedly connected with a polytetrafluoroethylene limit plate, which is used to limit the female curved pipes transported on the accelerating connection belt conveyor line. A hopper elevator is correspondingly arranged at the feeding place of the centrifugal material distribution conveyor.

[0006] Furthermore, the adjustable limit plate fixing frame includes a front limit plate adjustable fixing frame and a rear limit plate adjustable fixing frame arranged on both sides of the acceleration connection belt conveyor line, and the polytetrafluoroethylene limit plate includes a front polytetrafluoroethylene limit plate connected to the front limit plate adjustable fixing frame and a rear polytetrafluoroethylene limit plate connected to the rear limit plate adjustable fixing frame.

[0007] Furthermore, the position and size of the polytetrafluoroethylene limit plate can be adjusted by an adjustable limit plate fixing frame, and the distance between the front polytetrafluoroethylene limit plate and the rear polytetrafluoroethylene limit plate matches the size of the female bend pipe fitting.

[0008] Furthermore, the marking belt conveyor line is assembled from an overall frame, a conveying motor, a conveying belt, bearings, and rollers; the transition component includes a ball group fixing frame, a transition ball group, and a front adjustable ball mounting frame and a rear adjustable ball mounting frame arranged on both sides of the end of the marking belt conveyor line; the ball group fixing frame is fixedly arranged between the front adjustable ball mounting frame and the rear adjustable ball mounting frame, and the transition ball group is fixedly arranged on the ball group fixing frame.

[0009] Furthermore, the front adjustable ball mounting frame and the rear adjustable ball mounting frame are both made of stainless steel plates that are cut, bent and punched, and have two vertical holes and one horizontal hole; the front adjustable ball mounting frame and the rear adjustable ball mounting frame are both fixedly connected to the marking belt conveyor line via a screw and nut assembly using the two vertical holes, and through the two vertical holes, the front adjustable ball mounting frame and the rear adjustable ball mounting frame can be fine-tuned in the upper and lower positions on the marking belt conveyor line.

[0010] Furthermore, the ball group fixing frame is formed by cutting, bending and punching a stainless steel plate, and the two sides of the ball group fixing frame are respectively fixedly connected to the horizontal long holes of the front adjustable ball mounting frame and the rear adjustable ball mounting frame through screw and nut assemblies; the transition ball group is assembled from balls, a rotating shaft and an overall frame, and the balls can rotate freely on the rotating shaft; the transition ball group is fixedly connected to the ball group fixing frame through the screw and nut assembly; through the horizontal long holes on both sides, the ball group fixing frame can be adjusted to swing up and down in the left and right directions on the front adjustable ball mounting frame and the rear adjustable ball mounting frame.

[0011] Furthermore, the accelerating connecting belt conveyor line is assembled from an overall frame, a conveying motor, a conveying belt, bearings, and rollers; the front side limit plate adjustable fixing frame and the rear side limit plate adjustable fixing frame are both assembled from a fixing rod, a fixing seat, and a cross clamp and are connected and fixed to the accelerating connecting belt conveyor line through a screw and nut assembly.

[0012] Furthermore, the front polytetrafluoroethylene limit plate and the rear polytetrafluoroethylene limit plate are both made of polytetrafluoroethylene plates by cutting, punching and grinding, and are respectively connected and fixed to the front limit plate adjustable fixing frame and the rear limit plate adjustable fixing frame; the distance between the front polytetrafluoroethylene limit plate and the rear polytetrafluoroethylene limit plate is adjustable.

[0013] Furthermore, a docking induction photoelectric switch transmitter and a docking induction photoelectric switch receiver are arranged on both sides of the end of the accelerating connection belt conveyor line near the reciprocating packaging machine for docking induction of the female curved pipe fittings. When the pipe fitting separation signal is sensed, the accelerating connection belt conveyor line stops running, and the reciprocating packaging machine starts packaging once. After the packaging is completed, the accelerating connection belt line resumes operation and continues to convey the female curved pipe fittings until docking induction occurs again, and this reciprocating process ensures uniform product packaging intervals, avoids the occurrence of empty packages, and improves packaging stability.

[0014] Compared with the prior art, the technical effects of the utility model are:

[0015] In the utility model, the adjustable ball mounting frames on the front and rear sides and the ball group fixing frames are all designed to be adjustable, so that the transition ball group can better connect the marking belt conveyor line and the acceleration connection belt conveyor line, thereby ensuring that the female bend pipe fittings can slide from the marking belt conveyor line to the acceleration connection belt conveyor line in a standing posture. The polytetrafluoroethylene limit plates on the front and rear sides are made of polytetrafluoroethylene material, which has good self-lubrication and low friction coefficient, can provide good limit and guidance for the female bend pipe fittings, and can prevent the female bend pipe fittings from deflecting and tipping when sliding on the transition ball group, thereby improving the stability of the transition. The adjustable fixing frames of the limit plates on the front and rear sides can be adjusted up and down, front and back, so that they can be compatible with the limit and guidance of female bend pipe fittings of different specifications. The docking induction photoelectric switch transmitter and the docking induction photoelectric switch receiver are used for docking induction of female bend pipe fittings. When the pipe detachment signal is sensed, the acceleration connection belt conveyor line stops running, and the reciprocating packaging machine starts packaging once. After packaging is completed, the acceleration connection belt line resumes operation and continues to convey the female bend pipe fittings until docking induction occurs again. This reciprocating process ensures uniform product packaging intervals, avoids the occurrence of empty packages, and improves packaging stability.

[0016] Its main working mode is to combine the set transition ball group, marking belt conveyor line, acceleration connection belt conveyor line, etc., and the transition ball group is set between the marking belt conveyor line and the acceleration connection belt conveyor line to make a transition for the transportation of the female bend pipe fittings, forming a practical female bend pipe fittings marking, conveying and docking reciprocating packaging machine device.

[0017] The advantages of the utility model are: novel design and reasonable conception. It mainly has the function of keeping the marked female bend pipe fittings in an upright state and feeding them into a reciprocating packaging machine for packaging. It also has the function of accelerating the spacing of the female bend pipe fittings to improve the packaging stability. It has a simple structure, saves costs, has minimal dependence on the environment, is easy to operate, and is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structural diagram of the utility model device;

[0019] Figure 2 Detailed diagram of the transition connection mechanism of the utility model device;

[0020] Figure 3 Detailed diagram of the ball transition mechanism of the utility model device;

[0021] Figure 4 Detailed diagram of the induction docking mechanism of the utility model device.

[0022] The parts in the attached drawings are numbered as follows: 1. Centrifugal material conveyor; 2. Laser marking machine; 3. Reciprocating packaging machine; 4. Acceleration connection belt conveyor line; 5. Female bend pipe fittings; 6. Marking belt conveyor line; 7. Hopper elevator; 8. Rear limit plate adjustable fixing frame; 9. Rear polytetrafluoroethylene limit plate; 10. Front limit plate adjustable fixing frame; 11. Front polytetrafluoroethylene limit plate; 12. Front adjustable ball mounting frame; 13. Rear adjustable ball mounting frame; 14. Ball group fixing frame; 15. Transition ball group; 16. Docking induction photoelectric switch transmitter; 17. Docking induction photoelectric switch receiver. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0024] like Figure 1-Figure 4As shown, a female curved pipe marking, conveying and docking reciprocating packaging machine device includes a centrifugal material distribution conveyor 1, a laser marking machine 2, a reciprocating packaging machine 3, an accelerating connection belt conveyor line 4 and a marking belt conveyor line 5. The discharge port of the centrifugal material distribution conveyor 1 is docked with one end of the marking belt conveyor line 6, and the other end of the marking belt conveyor line 6 is docked with one end of the accelerating connection belt conveyor line 4 through a transition component. The other end of the accelerating connection belt conveyor line 4 is docked with the reciprocating packaging machine 3. The laser marking machine 2 is arranged above the marking belt conveyor line 6 for marking the female curved pipe 5 being transported. The accelerating connection belt conveyor line 4 is provided with a limit plate adjustable fixing frame, and the limit plate adjustable fixing frame is fixedly connected with a polytetrafluoroethylene limit plate, which is used to limit the female curved pipe 5 transported on the accelerating connection belt conveyor line 4. The feed of the centrifugal material distribution conveyor 1 is correspondingly provided with a hopper elevator 7.

[0025] Furthermore, the adjustable limit plate fixing frame includes a front limit plate adjustable fixing frame 10 and a rear limit plate adjustable fixing frame 8 arranged on both sides of the acceleration connection belt conveyor line 4, and the polytetrafluoroethylene limit plate includes a front polytetrafluoroethylene limit plate 11 connected to the front limit plate adjustable fixing frame 10 and a rear polytetrafluoroethylene limit plate 9 connected to the rear limit plate adjustable fixing frame 8.

[0026] Furthermore, the position and size of the polytetrafluoroethylene limit plate can be adjusted by an adjustable limit plate fixing frame, and the distance between the front polytetrafluoroethylene limit plate 11 and the rear polytetrafluoroethylene limit plate 9 matches the size of the female bend pipe fitting 5.

[0027] The marking belt conveyor 6 is assembled from an overall frame, a conveying motor, a conveying belt, bearings, rollers, etc. The transition assembly includes a ball group fixing frame 14, a transition ball group 15, and a front adjustable ball mounting frame 12 and a rear adjustable ball mounting frame 13 arranged on both sides of the end of the marking belt conveyor 6; the ball group fixing frame 14 is fixedly arranged between the front adjustable ball mounting frame 12 and the rear adjustable ball mounting frame 13, and the transition ball group 15 is fixedly arranged on the ball group fixing frame 14.

[0028] The front adjustable ball mounting frame 12 is made of stainless steel plate by cutting, bending and punching, and has three long holes, two vertical long holes and one horizontal long hole. The front adjustable ball mounting frame 12 is fixedly connected to the marking belt conveyor line 6 by four sets of hexagon socket screws, washers and T-nuts through the two vertical long holes. After loosening the four hexagon socket screws, the front adjustable ball mounting frame 12 can be fine-tuned up and down on the marking belt conveyor line 6.

[0029] The rear adjustable ball mounting frame 13 is made of stainless steel plate by cutting, bending and punching, and has three long holes, two vertical long holes and one horizontal long hole. The rear adjustable ball mounting frame 13 is fixedly connected to the marking belt conveyor line 6 through four sets of hexagon socket screws, washers and T-nuts by using the two vertical long holes. After loosening the four hexagon socket screws, the rear adjustable ball mounting frame 13 can be fine-tuned up and down on the marking belt conveyor line 6.

[0030] The transition ball group 15 is assembled from balls, a rotating shaft, an overall frame, etc., wherein the balls can rotate freely on the rotating shaft. The ball group fixing frame 14 is made of a stainless steel plate by cutting, bending and punching, and is provided with eight round holes and four vertical long holes. The transition ball group 15 is fixedly connected to the ball group fixing frame 14 by eight groups of hexagon socket screws and nuts. The ball group fixing frame 14 is fixedly connected to the horizontal long holes of the front adjustable ball mounting frame 12 and the rear adjustable ball mounting frame 13 by two groups of hexagon socket screws, washers and nuts respectively by using four vertical long holes. After loosening the four hexagon socket screws, the ball group fixing frame 14 can be adjusted to swing up and down in the left and right directions on the front adjustable ball mounting frame 12 and the rear adjustable ball mounting frame 13.

[0031] The acceleration connection belt conveyor line 4 is assembled from an overall frame, a conveying motor, a conveying belt, bearings, rollers, etc. The front side limit plate adjustable fixing frame 10 is assembled from a fixing rod, a fixing seat, a cross clamp, etc. The front side limit plate adjustable fixing frame 10 is connected and fixed to the acceleration connection belt conveyor line 4 by six hexagonal screws. The front side polytetrafluoroethylene limit plate 11 is cut, punched and polished from a polytetrafluoroethylene plate. The front side polytetrafluoroethylene limit plate 11 is connected and fixed to the front side limit plate adjustable fixing frame 10 by three countersunk screws. Using the front side limit plate adjustable fixing frame 10, the front side polytetrafluoroethylene limit plate 11 can be adjusted up and down and front and back so that it can be compatible with female bend pipes of different specifications.

[0032] The rear side limit plate adjustable fixing frame 8 is assembled from a fixing rod, a fixing seat, a cross clamp, etc. The rear side limit plate adjustable fixing frame 8 is connected and fixed to the acceleration connection belt conveyor line 4 by six hexagonal screws. The rear side polytetrafluoroethylene limit plate 9 is cut, punched and polished by a polytetrafluoroethylene plate. The rear side polytetrafluoroethylene limit plate 9 is connected and fixed to the rear side limit plate adjustable fixing frame 8 by three countersunk screws. With the rear side limit plate adjustable fixing frame 8, the rear side polytetrafluoroethylene limit plate 9 can be adjusted up and down and front and back so that it can be compatible with female curved pipe fittings of different specifications.

[0033] The docking induction photoelectric switch transmitter 16 and the docking induction photoelectric switch receiver 17 are connected and fixed to the acceleration connection belt conveyor line 4 by two hexagon socket screws. The docking induction photoelectric switch transmitter 16 and the docking induction photoelectric switch receiver 17 are used for docking induction of female curved pipe fittings. When the pipe fitting separation signal is sensed, the acceleration connection belt conveyor line 4 stops running, and the reciprocating packaging machine 3 starts packaging once. After the packaging is completed, the acceleration connection belt conveyor line 4 resumes operation and continues to transport the female curved pipe fittings until the docking induction occurs again. This reciprocating process ensures uniform product packaging intervals, avoids the occurrence of empty packages, and improves packaging stability.

[0034] The main working mode of the utility model device is to combine a set transition ball group 15, a marking belt conveyor line 6, an accelerating connecting belt conveyor line 4, etc., and the transition ball group 15 is arranged between the marking belt conveyor line 6 and the accelerating connecting belt conveyor line 4 to transition the conveyance of the female bend pipe 5 to form a female bend pipe marking, conveying and docking reciprocating packaging machine 3 device with strong practicality.

[0035] The specific implementation process of the utility model device in the production process is as follows: first adjust the upper and lower heights of the front adjustable ball mounting frame 12 and the rear adjustable ball mounting frame 13 and the angle of the ball group fixing frame 14, so that the right end of the transition ball group 15 is basically aligned with the belt conveying surface of the marking belt conveyor line 6, and the left side is at the same height as the belt conveying surface of the acceleration connection belt conveyor line 4. Then adjust the upper and lower and front and rear positions of the front polytetrafluoroethylene limit plate 11 and the rear polytetrafluoroethylene limit plate 9 through the front limit plate adjustable fixing frame 10 and the rear limit plate adjustable fixing frame 8 according to the specifications of the packaged female curved pipe 5. Then start the device, and the hopper elevator 7 lifts the female curved pipe and drops it into the centrifugal material distribution conveyor 1 and centrifugally conveys it out through the centrifugal material distribution conveyor 1. Because the bottom of the female bend pipe fitting 5 is a female threaded insert, the center of gravity is concentrated at the bottom, so that it can be transported upright by the centrifugal material conveyor 1 and then enter the marking belt conveyor line 6, which is transported to the left at a fixed speed. During this process, the laser marking machine 2 marks an anti-counterfeiting code for anti-counterfeiting query on each female bend pipe fitting. When the female bend pipe fitting 5 leaves the marking belt conveyor line 6 on the left side, after the transition of the transition ball group 15 and the guide limit of the front polytetrafluoroethylene limit plate 11 and the rear polytetrafluoroethylene limit plate 9, the female bend pipe fitting 5 slides into the acceleration connection belt conveyor line 4 in an upright posture and is accelerated by the acceleration connection belt conveyor line 4 to pull the distance to the left. During this process, the front polytetrafluoroethylene limit plate 11 and the rear polytetrafluoroethylene limit plate 9 continue to provide a guiding and limiting function. When the docking sensing photoelectric switch transmitter 16 and the docking sensing photoelectric switch receiver 17 sense the separation signal of the female curved pipe 5, the female curved pipe 5 has left the accelerating connecting belt conveyor line 4 in a standing posture and entered the reciprocating packaging machine 3. At this time, the accelerating connecting belt conveyor line 4 stops running, and the reciprocating packaging machine 3 starts packaging once. After the packaging is completed, the accelerating connecting belt conveyor line 4 resumes running and continues to transport the female curved pipe until the docking sensing is performed again, and the device is in motion.

[0036] The advantages of the utility model are: novel design and reasonable conception. It mainly has the function of feeding the marked female bend pipe fittings 5 ​​into the reciprocating packaging machine 3 in an upright state for packaging. At the same time, it has the function of accelerating the spacing of the female bend pipe fittings 5 ​​to improve the packaging stability. It has a simple structure, saves costs, has minimal dependence on the environment, is easy to operate, and is convenient to operate.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the concept of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A female bend pipe marking, conveying and docking reciprocating packaging machine device, characterized in that: The invention comprises a centrifugal material distribution conveyor (1), a laser marking machine (2), a reciprocating packaging machine (3), an accelerating connecting belt conveyor line (4) and a marking belt conveyor line (6), wherein the discharge port of the centrifugal material distribution conveyor (1) is connected to one end of the marking belt conveyor line (6), the other end of the marking belt conveyor line (6) is connected to one end of the accelerating connecting belt conveyor line (4) through a transition component, and the other end of the accelerating connecting belt conveyor line (4) is connected to the reciprocating packaging machine (3), the laser marking machine (2) is arranged above the marking belt conveyor line (6) and is used for marking the conveyed female curved pipe fittings (5), and the accelerating connecting belt conveyor line (4) is provided with a limit plate adjustable fixing frame, the limit plate adjustable fixing frame is fixedly connected to a polytetrafluoroethylene limit plate, and is used for limiting the female curved pipe fittings (5) conveyed on the accelerating connecting belt conveyor line (4).

2. According to claim 1, a female bending pipe marking, conveying and docking reciprocating packaging machine device is characterized in that: The adjustable limit plate fixing frame comprises a front limit plate adjustable fixing frame (10) and a rear limit plate adjustable fixing frame (8) arranged on both sides of the acceleration connection belt conveyor line (4); the polytetrafluoroethylene limit plate comprises a front polytetrafluoroethylene limit plate (11) connected to the front limit plate adjustable fixing frame (10) and a rear polytetrafluoroethylene limit plate (9) connected to the rear limit plate adjustable fixing frame (8).

3. According to claim 2, a female bending pipe marking, conveying and docking reciprocating packaging machine device is characterized in that: The position and size of the polytetrafluoroethylene limit plate can be adjusted by means of an adjustable limit plate fixing frame, and the distance between the front polytetrafluoroethylene limit plate (11) and the rear polytetrafluoroethylene limit plate (9) matches the size of the female bend pipe fitting (5).

4. The female bending pipe marking, conveying and docking reciprocating packaging machine device according to claim 1 is characterized in that: The marking belt conveyor line (6) is assembled from an overall frame, a conveying motor, a conveying belt, a bearing, and a roller shaft; the transition assembly comprises a ball group fixing frame (14), a transition ball group (15), and a front adjustable ball mounting frame (12) and a rear adjustable ball mounting frame (13) arranged on both sides of the end of the marking belt conveyor line (6); the ball group fixing frame (14) is fixedly arranged between the front adjustable ball mounting frame (12) and the rear adjustable ball mounting frame (13), and the transition ball group (15) is fixedly arranged on the ball group fixing frame (14).

5. The female bending pipe marking, conveying and docking reciprocating packaging machine device according to claim 4 is characterized in that: The front adjustable ball mounting frame (12) and the rear adjustable ball mounting frame (13) are both formed by cutting, bending and punching a stainless steel plate, and are provided with two vertical long holes and one horizontal long hole; the front adjustable ball mounting frame (12) and the rear adjustable ball mounting frame (13) are both fixedly connected to the marking belt conveyor line (6) by means of the two vertical long holes through a screw nut assembly, and the front adjustable ball mounting frame (12) and the rear adjustable ball mounting frame (13) can be finely adjusted in upper and lower positions on the marking belt conveyor line (6) through the two vertical long holes.

6. The female bending pipe marking, conveying and docking reciprocating packaging machine device according to claim 5 is characterized in that: The ball group fixing frame (14) is formed by cutting, bending and punching a stainless steel plate, and the two sides of the ball group fixing frame (14) are respectively fixedly connected to the transverse long holes of the front adjustable ball mounting frame (12) and the rear adjustable ball mounting frame (13) through screw and nut assemblies; the transition ball group (15) is assembled from balls, a rotating shaft and an overall frame, and the balls can rotate freely on the rotating shaft; the transition ball group (15) is fixedly connected to the ball group fixing frame (14) through the screw and nut assemblies; through the transverse long holes on both sides, the ball group fixing frame (14) can be adjusted to swing up and down in the left and right directions on the front adjustable ball mounting frame (12) and the rear adjustable ball mounting frame (13).

7. The female bending pipe marking, conveying and docking reciprocating packaging machine device according to claim 2 is characterized in that: The accelerating connecting belt conveyor line (4) is assembled from an overall frame, a conveying motor, a conveying belt, a bearing, and a roller shaft; the front side limit plate adjustable fixing frame (10) and the rear side limit plate adjustable fixing frame (8) are both assembled from a fixing rod, a fixing seat, and a cross clamp, and are connected and fixed to the accelerating connecting belt conveyor line (4) by a screw and nut assembly.

8. The female bending pipe marking, conveying and docking reciprocating packaging machine device according to claim 7 is characterized in that: The front polytetrafluoroethylene limit plate (11) and the rear polytetrafluoroethylene limit plate (9) are both formed by cutting, punching and grinding a polytetrafluoroethylene plate, and are respectively connected and fixed to the front limit plate adjustable fixing frame (10) and the rear limit plate adjustable fixing frame (8); the distance between the front polytetrafluoroethylene limit plate (11) and the rear polytetrafluoroethylene limit plate (9) is adjustable.

9. The female bending pipe marking, conveying and docking reciprocating packaging machine device according to claim 8 is characterized in that: A docking induction photoelectric switch transmitter (16) and a docking induction photoelectric switch receiver (17) are arranged on both sides of the end of the accelerating connection belt conveyor line (4) close to the reciprocating packaging machine (3) for docking induction of the female bent pipe fitting (5).

10. The female bending pipe marking, conveying and docking reciprocating packaging machine device according to claim 1 is characterized in that: A hopper elevator (7) is provided corresponding to the feeding point of the centrifugal material distribution conveyor (1).

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