CN216376338U - Reducing pipe ancient loading attachment - Google Patents

Abstract

The utility model discloses a reducing pipe ancient feeding device which comprises a blanking mechanism, a conveying mechanism, a rotating mechanism and a pushing mechanism, wherein the blanking mechanism is arranged on the conveying mechanism; the blanking mechanism and the workpiece rotating mechanism are respectively positioned at the front end and the tail end of the material conveying mechanism; the tail end of the conveying mechanism is provided with a sinking groove, and the width of an upper notch of the sinking groove is positioned between the outer diameters of the large and small ends of the reducing pipe; the rotating mechanism comprises a rotating assembly and a clamping component; the output end of the rotating assembly is vertical to the material conveying mechanism; the output end of the rotating assembly is connected with the clamping component. Adopt defeated material mechanism, defeated terminal heavy groove of material mechanism, rotating a mechanism to adjust the ancient gesture of reducing pipe, compare in the mode of artifical correction before having saved manpower and materials, improved material loading efficiency. The conveying mechanism conveys the reducing pipe to the tail end of the conveying mechanism; the above adjustment process simultaneously solves two problems of how to find the big end and the small end and distinguish the big end and the small end. The utility model has the characteristics of low error rate, high-efficiency feeding and the like.

Description

Reducing pipe ancient loading attachment

Technical Field

The utility model relates to a feeding device, in particular to an ancient feeding device for reducing pipes.

Background

The pipe ancient, also known as an internal thread straight joint, an internal thread straight joint and a pipe hoop, is one of water heating pipe fittings and is used for connecting two external thread pipes or pipe fittings with the same nominal diameter. The tube has two types of diameter equal and different. Tapping is an important procedure in ancient machining of pipes. At present to reducing pipe ancient tapping operation adopt be two tapping machines, because the tapping operation of two tapping machines is full-automatic going on and require reducing pipe ancient to get into two tapping machines according to appointed gesture inside, so the operator need carry out the material loading with reducing pipe ancient according to appointed gesture when carrying out the material loading. When normally working, an operator simultaneously carries out feeding on 2-3 two-head tapping machines, the feeding speed is undoubtedly limited by utilizing manual feeding, and various problems of inaccurate posture, low feeding speed and the like can occur. And the biggest drawback of this kind of material loading mode is once a two tapping machines breaks down will influence the material loading of other several two tapping machines, seriously influences holistic production efficiency. Therefore, some technicians propose to introduce automation technology for automatic feeding, but there are several technical difficulties to be solved in realizing automatic feeding. Firstly, the shape of the reducer pipe is irregular, and because the reducer pipe is a cylindrical malleable steel pipe with a necking, only two relatively regular surfaces are provided, namely two side surfaces of a cylinder: large end faces and small end faces, which are difficult to find in a large number of parts; secondly, due to the processing requirements of the two-head tapping machine, when the reducing pipe is subjected to ancient loading, the big end and the small end must be distinguished, so that the big end or the small end of the reducing pipe enters the two-head tapping machine in the direction of the specified requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ancient feeding device for reducing pipes, which is high in feeding efficiency and low in error rate.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

a reducing pipe ancient feeding device comprises a blanking mechanism, a conveying mechanism, a rotating mechanism and a pushing mechanism; the blanking mechanism and the workpiece rotating mechanism are respectively positioned at the front end and the tail end of the material conveying mechanism; the tail end of the conveying mechanism is provided with a sinking groove, and the width of an upper notch of the sinking groove is positioned between the outer diameters of the large and small ends of the reducing pipe; the rotating mechanism comprises a rotating assembly and a clamping component; the output end of the rotating assembly is vertical to the material conveying mechanism; the output end of the rotating assembly is connected with the clamping component.

In the ancient loading device for the reducing pipes, the clamping part comprises four fan-shaped blocks; the four fan-shaped blocks are uniformly distributed into a circular plate shape with the output end of the rotating assembly as the center and the arc edges facing outwards; gaps between the adjacent fan-shaped blocks form a piece accommodating groove; the piece containing grooves can contain reducing tubes with big and small ends in up-and-down postures, and the four piece containing grooves are sequentially opposite to the tail end of the material conveying mechanism when the clamping part rotates; the magnet is also arranged in the piece accommodating groove.

In the ancient loading device for the reducing pipes, the pushing mechanism comprises the pushing cylinder and the pushing block; the material pushing block and the upper part scraper-trough conveyer of the two-head tapping machine are positioned at two ends of the piece containing groove at the uppermost part of the clamping part; and one side of the material pushing block, which is far away from the upper part scraper-trough conveyer, is connected with the output end of the material pushing cylinder.

In the feeding device for the reducing pipe clamp, the material pushing block is provided with a bulge towards the upper part scraper-trough conveyer direction and on one side close to the thin pipe orifice end of the reducing pipe clamp; the bulge can be propped against the outer side surface of the thin pipe orifice of the reducing pipe clamp.

According to the ancient loading device for the reducing pipes, the damping plate is further arranged at the bottom of the sinking groove at the tail end of the conveying mechanism.

In the ancient loading device for the reducing pipes, the conveying mechanism comprises a sequencing track; the sorting track is V-shaped or U-shaped.

In the above-mentioned reducing pipe ancient loading device, the material conveying mechanism further comprises a material combing mechanism; the material combing mechanism comprises a material combing cylinder and a material combing plate; the material combing plate is positioned above the material conveying track and is vertical to the material conveying direction; a material combing port is formed at the lower part of the material combing plate; the material combing port can allow the reducing pipes arranged at the large end and the small end along the material conveying direction to pass through; the output end of the material combing cylinder is connected with the material combing plate along the material conveying direction.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the posture of the reducing pipe is adjusted by adopting the material conveying mechanism, the sink groove at the tail end of the material conveying mechanism and the rotating mechanism, so that manpower and material resources are saved and the feeding efficiency is improved compared with the conventional manual correction mode. The conveying mechanism conveys the reducing pipe to the tail end of the conveying mechanism; the sink at the tail end of the material conveying mechanism adjusts the reducing pipe to be in a posture that the big end is upward and the small end is downward; and finally, clamping the vertical reducing pipe by a clamping part of the rotating part mechanism, and adjusting the vertical posture to a horizontal posture under the driving of the rotating component. The above adjustment process simultaneously solves two problems of how to find the big end and the small end and distinguish the big end and the small end. The utility model has the characteristics of low error rate, high-efficiency feeding and the like.

Drawings

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

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention with the bottom support bar and the blanking barrel removed;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a top view of FIG. 2;

FIG. 5 is a schematic view of a sequencing track mechanism;

FIG. 6 is a top view of the blanking mechanism;

FIG. 7 is a sectional view taken along line A-A of FIG. 5;

FIG. 8 is a schematic view of the construction of a card web;

FIG. 9 is a left side view of the push mechanism, the turn mechanism, and the upper carriage;

fig. 10 is an electrical schematic of the present invention.

The reference numerals in the figures denote: 1. a blanking barrel; 2. feeding a hopper; 3. a striker plate; 4. a material pushing cylinder; 5. a sector block; 6. feeding a scraper-trough conveyer; 7. a bottom support bar; 8. an upper and lower adjustment gate; 9. an elastic adjustment door; 10. a material combing plate; 11. a material combing cylinder; 12. a material pushing block; 13. a rotating electric machine; 14. linearly vibrating the feeder; 15. a correlation sensor; 16. a blanking cylinder; 17. a blanking push rod; 18. a disc; 19. a sector hole; 20. a control chip; 21. a feeding in-place sensor; 22. a full sensor; 23. preventing nesting of the material; 24. sorting the tracks; 25. a damping plate.

Detailed Description

The reducing pipe is a cylindrical malleable steel pipe fitting with a necking, wherein one end of the reducing pipe is a large end, and the other end of the reducing pipe is a small end.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9 and fig. 10, the present invention includes a frame, and a feeding mechanism, a discharging mechanism and a control circuit which are arranged on the frame. The rack is fixed on the ground through a bottom support rod 7; the feeding mechanism is positioned on one side of the blanking mechanism and used for transporting the reducing pipe; the material conveying mechanism is provided with a material combing mechanism and is used for correcting the posture of the reducer; the tail end of the material conveying mechanism is provided with a rotating mechanism, a pushing mechanism and an upper slide carriage 6. The rotating mechanism can adjust the placing state of the reducing pipe; the pushing mechanism can push the reducing pipe onto the upper part chute 6. By adopting the mechanism, when the reducing pipe falls onto the conveying mechanism from the blanking mechanism, the combing mechanism adjusts combing, the reducing pipe is conveyed by the rotating mechanism through combing, and then the reducing pipe is pushed onto the loading chute 6 by the pushing mechanism.

Referring to fig. 1, 2, 3, 4, 5, 6 and 7, the discharging mechanism of the present invention includes a discharging hopper 2 and a discharging push rod 17; the blanking hopper 2 is cylindrical and is communicated with the loading area upwards through the blanking barrel 1; one side of the lower part is provided with an adjusting door, and the adjusting door comprises an upper adjusting door 8, a lower adjusting door 8 and an elastic adjusting door 9; the upper and lower adjusting doors 8 move up and down and are connected to the blanking hopper 2 to open or close the adjusting doors; the elastic adjusting door 9 is positioned below the upper adjusting door 8 and the lower adjusting door 8 and is used for discharging when the adjusting doors are opened. The bottom of the blanking hopper 2 is provided with a nesting-preventing bottom 23, and the nesting-preventing bottom 23 is an inclined plane and is connected with the bottom of the blanking hopper 2; the inclined plane is opposite to the adjusting door, and the bottom of the inclined plane is slightly higher than the adjusting door; the reducing pipe ancient like this can be along preventing that the nest material bottom 23 is direct to the governing door slip after getting into down hopper 2 to avoided the reducing pipe ancient to pile up in hopper 2 bottoms down. A blanking push rod 17 is arranged in the blanking hopper 2 at a position opposite to the adjusting door, and one end of the blanking push rod 17 far away from the adjusting door is connected with a blanking cylinder 16; thus, the blanking cylinder 16 can drive the blanking push rod 17 to move towards the adjusting door, so that the reducing pipe is pushed out from the elastic adjusting door 9. After adopting above-mentioned structure, the unloading process is: the reducing pipe enters the blanking hopper 2 through the blanking barrel 1, and slides to the position of the adjusting door along the inclined anti-nesting bottom 23 at the bottom of the blanking hopper 2; the blanking push rod 17 is driven by the blanking cylinder 16 to push the reducing pipe to move towards the direction of the adjusting door; the reducing pipe ancient further extrudes the elastic adjusting door 9, the elastic adjusting door 9 generates elastic deformation, and the reducing pipe ancient falls to the starting end of the material conveying mechanism; the blanking push rod 17 retracts, and the reducing pipes which do not fall off are pressed back into the blanking hopper 2 under the elastic action of the elastic adjusting door 9.

Referring to fig. 1, 2, 3, 4, 5, 6 and 7, the feeding mechanism of the present invention includes a sorting rail 24, a linear vibrating feeder 14 and a striker plate 3; the striker plate 3 is two, is located the discharge end of hopper 2 down, distributes in a left side right side, prevents that the reducing pipe ancient from dropping the position beyond sequencing track 24. The sorting track 24 is a strip track, and the bottom surface of the sorting track is preferably of a V-shaped structure, a U-shaped structure and the like so as to prevent the direction of the reducing pipe from being changed into the transverse direction along the strip track in the track conveying process; the starting end of the sorting track 24 is located below the discharge end of the regulating gate. The linear vibration feeder 14 is installed below the start end of the sorting rail 24, and vibrates to move the reducing pipe on the sorting rail 24. The material combing mechanism is positioned above the sequencing track 24, and the material conveying mechanism comprises a material combing cylinder 11, a piston rod and a material combing plate 10; the material combing plate 10 is arranged perpendicular to the material conveying direction, and the bottom of the material combing plate is arranged in a V-shaped or U-shaped matching sorting track 24; a fan-shaped hole 19 is also arranged at the center of the bottom; the diameter of the fan-shaped hole 19 is slightly wider than the ancient width length of the reducing pipe. The fan-shaped holes 19 only allow the reducer tubes with the required posture and along the direction of the sequencing track 24 to enter and pass, and the reducer tubes with the non-required shape are blocked. The material combing cylinder 11 is located above the sorting track 24 and connected with the material combing plate 10, the pushing direction of the material combing cylinder 11 is opposite to the conveying direction of the reducing pipes on the sorting track 24, and therefore the blocked reducing pipes which do not meet the form requirement can be pushed back to the starting end of the sorting track 24. The conveying process comprises the following steps: the reducing pipe falls from the discharge end of the blanking hopper 2 to the starting end of the sequencing track 24; the striker plate 3 cannot fall to the ground from both sides due to blocking. The reducing pipe is carried along the sorting rail 24 by the vibration of the linear vibration feeder 14. Because the sorting track 24 is a V-shaped or U-shaped strip track, the posture of the reducing pipe can be continuously adjusted in the transportation process so as to meet the requirements; after encountering the material combing plate 10, the reducing pipes which do not meet the form requirements cannot enter the fan-shaped holes 19 on the material combing plate 10, and the material combing plate 10 driven by the material combing cylinder 11 is pushed back to the starting end of the sequencing track 24. The reducer ancient in the required posture is continuously conveyed on the sequencing track 24 through the fan-shaped holes 19, and the posture of the reducer ancient is not changed in the transportation process due to the fact that the sequencing track 24 is V-shaped or U-shaped, so that automatic sequencing and posture adjustment are achieved.

Referring to fig. 3, 4 and 5, the tail end of the sequencing track 24 is provided with a highly falling sinking groove; the bottom of the sink groove is of a horizontal structure, and the width of the notch at the upper part of the sink groove is positioned between the outer diameters of the ancient large and small ends of the reducing pipe; like this, the reducing pipe ancient of transporting to sequencing track 24 end can fall into the heavy groove, and is that the tip of reducing pipe ancient is down to get into in the groove, the main aspects card on the upper portion of heavy groove upwards. The linearly vibrating feeder 14 continues the forward transportation of the reducing pipe in the above-described posture by the vibration until reaching the extreme end of the sorting rail 24. The bottom of the sink groove is also provided with a damping plate 25, so that when the small end of the reducing pipe enters the sink groove downwards, the small end can contact the damping plate 25; the damping plate 25 can prevent the reducing pipe from falling forwards or backwards in the vibration forward process, so that the reducing pipe always keeps the posture that the small end is downward and the large end is upward to vibrate forwards. The conveying tail end of the sinking groove is not provided with a groove bottom, and the position without the groove bottom can accommodate a reducing pipe.

Referring to fig. 1, 2, 3, 4 and 9, the rotating mechanism of the present invention comprises a rotating assembly, a clamping member; the rotating assembly is preferably a rotating motor 13 which is provided with a speed reducer and then is arranged below the upper part scraper-trough conveyer 6, and the rotating motor extends out of the output end in the direction vertical to the sequencing track 24. The output end of the rotating component is concentrically and fixedly connected with the disc 18; the clamping part comprises four segments 5 with central angles of 90 degrees; the fan-shaped blocks 5 are uniformly fixed on the outer edge of the disc 18 with the circle center of the disc 18 as the center and the arc-shaped edge facing outwards; thus, the four sectors 5 form a disc-like structure on the outside of the disc 18; the clearance between the adjacent fan-shaped blocks 5 forms a piece accommodating groove; the magnet is arranged in the piece accommodating groove. Since the central angle of the sector 5 is 90 degrees, the four container grooves formed are all strip-shaped grooves. The groove width of the containing groove is the same as or slightly larger than the distance between the big end and the small end of the reducing pipe, so that the reducing pipe with the big end and the small end in the vertical posture can be contained in the containing groove. When the four accommodating grooves are respectively in a vertical state and a horizontal state, one accommodating groove is over against the conveying tail end of the sinking groove. And the workpiece containing groove is just positioned in the middle of the position where the conveying tail end of the sinking groove is not provided with the groove bottom. Thus, when the reducing pipe arriving at the tail end of the sorting track 24 continuously vibrates forwards under the action of the linear vibration feeder 14, the reducing pipe at the conveying tail end of the sinking groove can be sucked into the accommodating groove by the magnetic block, and the left and right parts of the reducing pipe can be blocked by the sinking groove without the groove bottom part, so that the reducing pipe is prevented from inclining left and right in the sucking process and falling to other positions. Because the bottom of the sinking groove is provided with the damping plate 25, except that the reducing pipe at the tail end is sucked into the accommodating groove, other reducing pipes cannot be sucked under the obstruction of the damping plate 25; the rotating assembly 13 is rotated by 90 degrees so that the vertically entered reducer becomes a horizontal posture.

Referring to fig. 1, 2, 3, 4 and 8, the pusher mechanism of the present invention includes a pusher cylinder 4 and a pusher block 12. The material pushing block 12 and the upper part scraper-trough conveyer 6 of the two-head tapping machine are positioned at two ends of the piece containing groove at the uppermost part of the clamping part; the side of the material pushing block 12, which is far away from the upper part scraper-trough conveyer 6, is connected with the output end of the material pushing cylinder 4. A bulge is arranged on one side of the material pushing block 12 facing to one end of the upper part scraper-trough conveyer direction; the length of the bulge is H, and the difference between the outer diameter of the thick opening and the outer diameter of the thin opening of the reducing pipe hoop is L; the H is L/2; therefore, when the material pushing block 12 pushes materials, the protrusion is propped against the narrow opening end of the reducing pipe clamp, so that the material pushing block 12 can be prevented from propping the reducing pipe clamp askew in the material pushing process, and the reducing pipe clamp can enter the upper part chute 6 in a qualified posture.

Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, the control circuit unit of the present invention includes a control chip 20, a feed-in-position sensor 21, a correlation sensor 15 and a full sensor 22. The signal input end of the control chip 20 is connected with the correlation sensor 15, the track feeding in-place sensor 21 and the full-material sensor 22, and the signal output end is connected with the blanking cylinder 16, the rotating motor 13, the pushing cylinder 4 and the combing cylinder 11. The emitter of the correlation sensor 15 is arranged on one side of the starting end of the sequencing track 24, and the receiver is arranged on the other side of the sequencing track 24 in a matching way; the correlation sensor 15 is an infrared correlation sensor 15, and the sensor can detect whether a pipe with a different diameter exists at the sorting track 24 through shielding or not in a static state. If the correlation sensor 15 does not detect the tube with the different diameter, the control chip 20 drives the discharging cylinder 16, and the discharging push rod 17 is driven by the discharging cylinder 16 to push the tube with the different diameter in the discharging hopper 2, so that the tube with the different diameter falls to the starting end of the sequencing track 24 from the discharging hopper 2. The feeding-to-position sensor 21 is installed at the tail end of the sequencing track 24, the feeding-to-position sensor 21 is a proximity switch type sensor, and whether the reducer reaches the position of the sensor or not can be sensitively detected by adopting the sensor in the dynamic process that the reducer vibrates forwards. The full-material sensor 22 is arranged on the feeding slide carriage 6 and is used for detecting whether a reducing pipe is arranged on the feeding slide carriage 6. The control circuit unit works as follows: when the opposite-emitting sensor 15 cannot detect that the starting end of the sequencing track 24 has the reducing pipe, the control chip 20 controls the blanking cylinder 16 to work, and the blanking cylinder 16 drives the blanking push rod 17 to perform blanking operation; when the feeding in-place sensor 21 detects that the reducing pipe ancient is detected and the full-material sensor 22 cannot detect the reducing pipe ancient, the control chip 20 controls the rotating motor 13 to work and controls the reducing pipe ancient to be vertically changed to be horizontal; the material pushing cylinder 4 drives the pushing mechanism to push materials; the control chip 20 controls the material combing cylinder 11 to periodically push the material combing cylinder to comb the material.

The working process of the utility model is as follows:

(A) the reducing pipe enters the blanking hopper 2 through the blanking barrel 1 and slides to the position of the adjusting door along the anti-nest material bottom 23 in the blanking hopper 2. If the corresponding sensor 15 installed at the starting end of the sequencing track 24 does not detect the reducing pipe ancient, the control chip 20 controls the blanking air cylinder 16 to drive the blanking push rod 17 to move, the reducing pipe ancient is pushed to move towards the direction of the adjusting door, the reducing pipe ancient extrudes the elastic adjusting door 9, the elastic adjusting door 9 generates elastic deformation, and the reducing pipe ancient drops to the starting end of the sequencing track 24. Then, the blanking push rod 17 is retracted, and the reducing pipe which is not dropped is pressed back into the blanking hopper 2 under the elastic action of the elastic adjusting door 9.

(B) The reducing pipe falls to the initiating terminal of sequencing track 24 from the discharge end of hopper 2 down ancient times, through blockking of striker plate 3. The reducing pipe is carried along the sorting rail 24 by the vibration of the linear vibration feeder 14. Because the sorting track 24 is a V-shaped strip track, the posture of the reducing pipe can be continuously adjusted in the transportation process to meet the requirements, and after the reducing pipe meets the combing mechanism, the reducing pipe which does not meet the requirements of the shape cannot enter the fan-shaped holes 19 of the combing plate 10, and the reducing pipe is pushed back to the starting end of the sorting track 24 by the combing mechanism driven by the combing cylinder 11. And the reducer pipe with the required posture continues to move on the sequencing track 24 through the fan-shaped holes 19. And because the sorting track 24 is V-shaped, the posture of the reducer will not change during transportation.

(C) The old pipe of reducing that reachs sequencing track 24 end can be under the effect of gravity, and the old tip of reducing goes into the inslot downwards, and the tip can fall on damping plate 25, and the card is on the upper portion of heavy groove upwards for the tip, and straight line vibration feeder 14 makes the old pipe of reducing continue to transport forward through the vibration until reaching the end of sequencing track 24. The damping plate 25 can prevent the reducing pipe from falling forwards or backwards in the vibration forward process, so that the reducing pipe always keeps the posture that the small end is downward and the large end is upward to vibrate forwards. Then the reducing pipe at the conveying end of the sinking groove is sucked into the containing groove by magnetic force and is adsorbed by the magnetic block.

(D) When the feeding in-place sensor 21 detects the tube with the different diameter and the full-material sensor 22 cannot detect the tube with the different diameter, the control chip 20 controls the rotating motor 13 to drive the fan-shaped blocks 5 through the disc 18 to rotate the tube with the different diameter 90 degrees from vertical to horizontal, and the tube with the different diameter is lifted to a specified height, and the material pushing block 12 pushes the tube with the different diameter to the inlet of the upper slide 6 from between the two horizontal fan-shaped blocks 5 to enter the upper slide 6.

Claims (7)

1. The utility model provides an ancient loading attachment of reducing pipe which characterized in that: comprises a blanking mechanism, a material conveying mechanism, a rotating mechanism and a pushing mechanism; the blanking mechanism and the workpiece rotating mechanism are respectively positioned at the front end and the tail end of the material conveying mechanism; the tail end of the conveying mechanism is provided with a sinking groove, and the width of an upper notch of the sinking groove is positioned between the outer diameters of the large and small ends of the reducing pipe; the rotating mechanism comprises a rotating assembly and a clamping component; the output end of the rotating assembly is vertical to the material conveying mechanism; the output end of the rotating assembly is connected with the clamping component.

2. The ancient loading attachment of reducing pipe of claim 1, characterized in that: the gripping member comprises four segments (5); the four fan-shaped blocks (5) are uniformly distributed into a circular plate shape with the output end of the rotating assembly as the center and the arc edges facing outwards; the clearance between the adjacent fan-shaped blocks (5) forms a container groove; the piece containing grooves can contain reducing tubes with big and small ends in up-and-down postures, and the four piece containing grooves are sequentially opposite to the tail end of the material conveying mechanism when the clamping part rotates; the magnet is also arranged in the piece accommodating groove.

3. The ancient loading attachment of reducing pipe of claim 2, characterized in that: the pushing mechanism comprises a pushing cylinder (4) and a pushing block (12); the material pushing block (12) and an upper workpiece scraper-trough conveyer (6) of the two-head tapping machine are positioned at two ends of a workpiece accommodating groove at the uppermost part of the clamping part; one side of the material pushing block (12) far away from the upper part scraper-trough conveyer (6) is connected with the output end of the material pushing cylinder (4).

4. The ancient loading attachment of reducing pipe of claim 3, characterized in that: the material pushing block (12) is provided with a bulge towards the upper part scraper-trough conveyer (6) and at one side close to the thin tube mouth end of the reducing pipe hoop; the bulge can be propped against the outer side surface of the thin pipe orifice of the reducing pipe clamp.

5. The ancient loading attachment of reducing pipe of claim 1, characterized in that: the bottom of the sinking groove at the tail end of the material conveying mechanism is also provided with a damping plate (25).

6. The reducing pipe ancient loading device according to any one of claims 1-5, characterized in that: the material conveying mechanism comprises a sequencing track (24); the sorting track (24) is V-shaped or U-shaped.

7. The ancient loading attachment of reducing pipe of claim 6, characterized in that: the material conveying mechanism also comprises a material combing mechanism; the material combing mechanism comprises a material combing cylinder (11) and a material combing plate (10); the material combing plate (10) is positioned above the material conveying track and is vertical to the material conveying direction; the lower part of the material combing plate (10) is provided with a material combing port (19); the material combing port (19) can allow the reducing pipes arranged in the postures of the big end and the small end along the material conveying direction to pass through; the output end of the material combing cylinder (11) is connected with the material combing plate (10) along the material conveying direction.

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