CN113351775A

CN113351775A - Automatic double-head pipe reducing machine

Info

Publication number: CN113351775A
Application number: CN202110593552.8A
Authority: CN
Inventors: 吴从桥
Original assignee: Zhejiang Sanmen Hongqiao Rubber Plastic Technology Co ltd
Current assignee: Zhejiang Sanmen Hongqiao Rubber Plastic Technology Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-09-07
Anticipated expiration: 2041-05-28
Also published as: CN113351775B

Abstract

The invention provides an automatic double-head pipe reducing machine which comprises a machine table and two groups of pipe reducing mechanisms arranged on the machine table, wherein a feeding table, a containing frame and a pushing device are arranged on the machine table; the two sets of pipe reducing mechanisms are arranged on two sides of the pushing device in a staggered mode. When the double-head pipe reducing machine is needed to be used for reducing the pipe fittings, the pipe fittings to be processed are placed in the feeding table in order, and the pipe fittings to be processed stored in the feeding table can fall down from the discharge port and fall into the pushing device. Then the pipe fitting on the feeding platform is transported by the pushing device, so that the pipe fitting moves from one side of the feeding platform to one side of the storage rack. When the pipe fitting moves to the left side and the right side of the pipe shrinking mechanism, the pipe shrinking mechanism can be used for shrinking the pipe fitting. Replace artifical pipe fitting that is used for getting to put draw mechanism department through pusher, have degree of automation height, the higher advantage of machining efficiency.

Description

Automatic double-head pipe reducing machine

Technical Field

The invention relates to the technical field of pipe reducing machines, in particular to an automatic double-head pipe reducing machine.

Background

At present, chinese patent with publication number CN207271986U discloses a double-end pipe shrinking machine, which comprises a machine table, wherein two sets of pipe shrinking mechanisms are symmetrically and fixedly installed on the machine table, an installation frame is arranged between the two sets of pipe shrinking mechanisms, the installation frame is fixed on the top surface of the machine table, two sets of clamping mechanisms are symmetrically arranged on the installation frame, and the two sets of clamping mechanisms are respectively opposite to the two sets of pipe shrinking mechanisms in the left-right direction. The machine table is provided with a hydraulic cylinder for driving the pipe contracting mechanism and the clamping mechanism. However, in the using process of the double-end pipe reducing machine, an operator needs to manually take out the processed pipe fitting from the clamping mechanism and place the pipe fitting to be processed in the clamping mechanism, the whole process needs to take a long time, and the processing efficiency of the double-end pipe reducing machine is reduced to a certain extent.

Disclosure of Invention

In view of this, the present invention provides an automatic double-head pipe shrinking machine, which has the advantage of high processing efficiency.

In order to solve the technical problems, the technical scheme of the invention is as follows: an automatic double-end pipe reducing machine comprises a machine table and two groups of pipe reducing mechanisms arranged on the machine table, wherein a feeding table used for storing pipes to be processed, a storage frame used for collecting the processed pipes and a pushing device used for conveying the pipes from one side of the feeding table to one side of the storage frame are arranged on the machine table;

the pushing device comprises a bearing frame arranged on the machine table, a pushing plate connected to the bearing frame in a sliding mode, a sliding cylinder used for driving the pushing plate, a top frame arranged on the pushing plate, and a lifting cylinder used for driving the top frame to lift;

a feeding through groove penetrates through the top of the bearing frame, the feeding through groove extends from one side of the feeding table to one side of the storage frame, and the pushing plate is connected in the feeding through groove in a sliding manner;

the top of the bearing frame is provided with a plurality of first grooves, the plurality of first grooves are uniformly distributed along the length direction of the feeding through groove, the length direction of the first grooves is perpendicular to the length direction of the feeding through groove, the top of the top frame is provided with a plurality of second grooves, the distance between every two adjacent second grooves is equal to the distance between every two adjacent first grooves, and the two grooves are used for communicating the first grooves;

and the two groups of pipe reducing mechanisms are arranged on two sides of the pushing device in a staggered manner.

Through above-mentioned technical scheme, need use this double-end draw machine to carry out the throat man-hour to the pipe fitting, will treat that the pipe fitting of processing neatly puts in the feed table, and the pipe fitting of processing of treating that deposits in the feed table can follow the discharge gate whereabouts and fall to pusher. Then the pipe fitting on the feeding platform is transported by the pushing device, so that the pipe fitting moves from one side of the feeding platform to one side of the storage rack. When the pipe fitting moves to the left side and the right side of the pipe shrinking mechanism, the pipe shrinking mechanism can be used for shrinking the pipe fitting. Replace artifical pipe fitting that is used for getting to put draw mechanism department through pusher, have degree of automation height, the higher advantage of machining efficiency.

When the pushing device is needed to be used for conveying the pipe fitting, the lifting cylinder can drive the top frame to move upwards firstly, so that the pipe fitting enters the second groove in the top of the top frame, and the top frame can carry the pipe fitting to move upwards to separate the pipe fitting from the bearing frame; then, the pushing plate is driven by the sliding cylinder to move to one side far away from the feeding table, so that the pipe fitting moves to the position right above the next groove I; and then the lifting cylinder drives the top frame to move downwards, so that the pipe fitting enters the first groove of the bearing frame.

Two sets of draw mechanism dislocation sets in pusher's both sides about, so can be used for carrying out the draw to the both ends of pipe fitting respectively for the difficult condition that upwarps warp the deformation of appearing of pipe fitting has guaranteed the straightness of pipe fitting.

Preferably, a plurality of thimbles are arranged on the pushing plate, the thimbles are uniformly distributed along the length direction of the feeding through groove, and the tops of the thimbles are all abutted against the bottom surface of the top frame.

Through above-mentioned technical scheme, a plurality of thimbles of even setting all lean on in the bottom surface department of roof-rack for the roof-rack is difficult for appearing the condition of slope on moving the in-process, and the pipe fitting can be stable place in the recess two of roof-rack like this.

Preferably, the bottom surface of roof-rack is provided with the guide post, impel the board top surface with the guiding post department of being relative has seted up the guiding hole, the guide post slide connect in the guiding hole.

Through above-mentioned technical scheme, the cooperation of guide post and guiding hole for play the effect of direction to the top of roof-rack and whereabouts, make the roof-rack be difficult for appearing the slope at the removal in-process, so the pipe fitting can stably put in the recess two of roof-rack.

Preferably, a guiding curved surface is arranged at a position, far away from the feeding table, of the bearing frame, and the guiding curved surface is used for guiding the pipe fitting to enter the containing frame.

Through above-mentioned technical scheme, when the pipe fitting contradicts in the guide curved surface, under the dead weight effect of pipe fitting, the pipe fitting falls into along the guide curved surface and accomodates the frame for the collection process of pipe fitting becomes more convenient, high-efficient.

Preferably, the feeding table comprises a supporting frame and a feeding bin arranged at the top of the supporting frame, the inner bottom surface of the feeding bin inclines towards one side of the pushing device, and a discharging hole for a single pipe fitting to pass through is formed in the bottom of the feeding bin.

Through above-mentioned technical scheme, when the staff put into the pipe fitting to the feed storehouse, pile up and can slide to the discharge gate along the interior bottom in feed storehouse under the dead weight effect at the inside pipe fitting of feed platform for realize automatic feed's purpose, make the use of this double-end draw machine become more convenient.

Preferably, the discharge gate deviates from pusher's inner wall department is provided with the guide board, the bottom of guide board is provided with the arc, the opening of arc is towards discharge gate one side, the curved surface at arc top with distance between the discharge gate is greater than the pipe fitting diameter of one time and is less than the pipe fitting diameter of twice.

Through above-mentioned technical scheme, when the pipe fitting falls from the discharge gate, can enter into in the arc under the guide of guide board. The distance between the curved surface at arc top and the discharge gate is greater than one time pipe fitting diameter and is less than twice pipe fitting diameter, so when placing the pipe fitting on the arc, the pipe fitting in the feed table is difficult for continuing to fall out.

Preferably, the inside strip that pushes away that is provided with of feed storehouse, it is located to push away the strip discharge gate top, just it fixes to push away the strip top the feed storehouse is close to pusher's inside wall department, the feed storehouse lateral wall is provided with the push cylinder, the piston rod of push cylinder runs through the feed storehouse, and is used for with the bottom that pushes away the strip is to keeping away from pusher one side promotes.

Through above-mentioned technical scheme, when needs use pusher to be used for carrying the pipe fitting on the arc, push away the bottom of strip through promotion cylinder control and remove to feed platform is inside for promote the inside pipe fitting of feed platform, so be located the pipe fitting of feed platform bottom and can drop via the discharge gate smoothly, make the use of feed platform become more smooth and easy.

Preferably, the accommodating frame comprises a bending frame and a fixing frame for supporting the bending frame, limiting plates are arranged on two sides of the fixing frame, and the limiting plates are used for limiting the pipe fittings on the bending frame.

Through above-mentioned technical scheme, crooked frame can be used to guide the pipe fitting for the pipe fitting slowly enters into the bottom of crooked frame. The limiting plates arranged on the two sides of the fixing frame can be used for positioning the pipe fitting, so that the pipe fitting is not easy to fall off from the bending frame.

Preferably, the bending frame is far away from the end part of the machine table, a guide strip is hinged to the end part of the bending frame, and a spring is arranged at the bottom of the guide strip.

Through above-mentioned technical scheme, when the pipe fitting that piles up on the crooked frame was too much, the gravity of the pipe fitting that piles up on the gib block was greater than the elasticity of spring for the spring is compressed, and the gib block slope is rotated downwards this moment, and the guide pipe spare slides away from and accomodates the frame, and the gib block resets until the gravity of the pipe fitting on the gib block is less than the elasticity of spring. The storage rack is not easy to be damaged by stacking too many pipes through the guide strips.

Preferably, the bottom of the guide strip is provided with a telescopic rod, and the spring is sleeved on the telescopic rod.

Through above-mentioned technical scheme, the telescopic link is used for leading to the flexible direction of spring, breaks away from the gib block when preventing the spring motion.

Drawings

FIG. 1 is a first schematic structural diagram according to a first embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a partial schematic view of the second embodiment;

FIG. 4 is an enlarged view of the portion B of FIG. 3;

fig. 5 is a schematic cross-sectional view of the guide strip.

Reference numerals: 1. a machine platform; 2. a pipe contracting mechanism; 3. a feeding table; 31. a support frame; 32. a feeding bin; 4. a storage rack; 41. a bending frame; 42. a fixed mount; 5. a pushing device; 51. a receiving frame; 52. a propulsion plate; 53. a slipping cylinder; 54. a top frame; 55. a lifting cylinder; 6. a feeding through groove; 7. a first groove; 8. a second groove; 9. a thimble; 10. a guide post; 11. a guide hole; 12. a guide curved surface; 13. a discharge port; 14. a guide plate; 15. an arc-shaped plate; 16. pushing the strips; 17. a push cylinder; 18. a limiting plate; 19. a guide strip; 20. a spring; 21. a telescopic rod; 22. a receiving groove; 221. a locking end; 222. a limiting end; 23. an electromagnet; 24. a placement groove; 25. an actuating cylinder; 26. a locking block; 27. an accommodating groove; 271. a connecting end; 272. a locking end; 28. a stopper; 29. contracting the elastic sheet; 30. a magnetic metal block; 33. a controller; 34. a first contact piece; 35. a second contact.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

The first embodiment is as follows:

an automatic double-end pipe reducing machine is shown in fig. 1 and fig. 2, and comprises a machine table 1, two sets of pipe reducing mechanisms 2 arranged on the machine table 1 in a left-right staggered manner, a feeding table 3 arranged on the machine table 1 and used for storing pipes to be processed, a pushing device 5 arranged between the two sets of pipe reducing mechanisms 2 and used for moving the pipes, and a storage frame 4 arranged on the machine table 1 and used for storing the processed pipes. During the use, the staff will wait to process the pipe fitting and neatly pile up in feed platform 3, and the pipe fitting in the feed platform 3 can fall one by one to pusher 5, and pusher 5 is sent the pipe fitting to and is accomodate frame 4 one side by feed platform 3 one side, and when the pipe fitting when closing relatively about with reducing mechanism 2, reducing mechanism 2 can carry out the pipe contracting processing to the pipe fitting.

The feed platform 3 comprises a support frame 31 and a feed bin 32 arranged at the top of the support frame 31, a discharge hole 13 for a single pipe fitting to pass through is formed in the bottom of the feed bin 32, the inner bottom surface of the feed bin 32 inclines towards one side of the discharge hole 13, and the pipe fitting stored in the feed bin 32 can roll towards one side of the discharge hole 13 under the action of self weight.

The inner wall of the discharge port 13 is provided with a guide plate 14, and the guide plate 14 extends downwards in an inclined manner. The bottom of the guiding plate 14 is provided with an arc-shaped plate 15, and the opening of the arc-shaped plate 15 faces one side of the discharging hole 13. The maximum distance between the curved surface at the top of the arc-shaped plate 15 and the discharge hole 13 is larger than one time of pipe diameter and smaller than two times of pipe diameter, so that when one pipe is positioned inside the arc-shaped plate 15, the rest pipes in the feeding table 3 cannot continuously fall out.

A pushing strip 16 is arranged above the discharge port 13, and the top end of the pushing strip 16 is fixed at the inner side wall of the feeding bin 32 close to the pushing device 5. The outside of the feeding bin 32 is provided with a pushing cylinder 17, a piston rod of the pushing cylinder 17 penetrates through the feeding bin 32, and is used for pushing the bottom end of the pushing bar 16 to move towards the side far away from the pushing device 5. When the pushing device 5 conveys the pipe fittings on the arc-shaped plate 15, the pushing strip 16 driven by the pushing cylinder 17 can rock the pipe fittings stacked in the feeding table 3, so that the pipe fittings can smoothly fall out of the discharge hole 13.

The pushing device 5 comprises a receiving frame 51 arranged on the machine table 1, a pushing plate 52 connected to the receiving frame 51 in a sliding manner, a sliding cylinder 53 for driving the pushing plate 52, a top frame 54 arranged on the pushing plate 52, and a lifting cylinder 55 for driving the top frame 54 to lift. The top of the receiving frame 51 is provided with a feeding through groove 6 in a penetrating manner, and the feeding through groove 6 extends from one side of the feeding table 3 to one side of the storage frame 4. The pushing plate 52 is connected in the feeding through groove 6 in a sliding manner, a plurality of ejector pins 9 are arranged on the top surface of the pushing plate 52, the ejector pins 9 are uniformly distributed along the length direction of the feeding through groove 6, and the tops of the ejector pins 9 are all abutted against the bottom surface of the top frame 54. The bottom surface of the top frame 54 is provided with a guide post 10, a guide hole 11 is formed at the position of the top surface of the pushing plate 52 opposite to the guide post 10, and the guide post 10 is connected in the guide hole 11 in a sliding manner for guiding the lifting of the top frame 54.

The carrier 51 is provided with a barrier strip near the guide plate 14 to prevent the pipe from separating from the carrier 51. The top of the bearing frame 51 is provided with a plurality of first grooves 7, the plurality of first grooves 7 are uniformly distributed along the length direction of the feeding through groove 6, and the length direction of the first grooves 7 is perpendicular to the length direction of the feeding through groove 6. The top of the top frame 54 is provided with a plurality of second grooves 8, the distance between two adjacent second grooves 8 is equal to the distance between two adjacent first grooves 7, and the second grooves 8 are used for communicating the first grooves 7. The receiving frame 51 is provided with a guiding curved surface 12 away from the feeding table 3, and the guiding curved surface 12 is used for guiding the pipe to enter the receiving frame 4.

The receiving rack 4 includes a bending rack 41 for receiving stacked pipes, a fixing rack 42 for supporting the bending rack 41, and a receiving box for receiving excess pipes. Bending frame 41 keeps away from the tip of board 1 articulates through the articulated shaft has gib block 19, and the containing box is close to and offers the spout that supplies gib block 19 to slide in the lateral wall that gib block 19, and gib block 19 below is provided with telescopic link 21, and the top of telescopic link 21 is inconsistent with the bottom of gib block 19. The telescopic rod 21 is sleeved with a spring 20, and the top of the spring 2 is abutted to the bottom of the guide strip 10. When too many pipe fittings of piling up on crooked frame 41, the gravity of the pipe fitting of piling up on the gib block 19 is greater than the elasticity of spring 20 for spring 20 compresses, gib block 19 slope rotates, gib block 19 slides in the spout, makes the pipe fitting fall into the containing box, and the gravity of the pipe fitting on the gib block 19 is less than the elasticity of spring 20, and gib block 19 resets, avoids containing frame 4 to pile up too much pipe fitting and leads to containing frame 4 to damage. Limiting plates 18 are arranged on the two sides of the fixed frame 42 from the fixed frame 42 to prevent the pipe from being separated from the bending frame 41 when the pipe slides on the bending frame 41.

Example two:

as shown in fig. 3, 4 and 5, the second embodiment is different from the first embodiment in that the top surface of the curved frame 41 is provided with a receiving groove 22, and two ends of the receiving groove 22 are a locking end 221 and a limiting end 222, respectively.

The locking end 221 penetrates through the side wall of the bending frame 41 close to the guide bar 19, and the locking end 221 is positioned above the hinge shaft. An electromagnet 23 is embedded at the bottom of the locking end 221, and the electromagnet 23 can attract the magnetic material when being electrified. In order to ensure that the electromagnet 23 can achieve the expected effect, the storage rack 4, the guide strip 19 and the pipe fitting to be processed are all made of non-magnetic materials.

The stopper 222 extends along the length of the bent frame 41. The inner side wall of the limiting end 222 is provided with a placing groove 24, an execution cylinder 25 is arranged in the placing groove 24, and the end part of the piston rod of the execution cylinder 25 is provided with a locking block 26. When the piston rod of the actuating cylinder 25 is extended, the locking block 26 can be pushed out of the placement groove 24, so that the end of the locking block 26 remote from the actuating cylinder 25 is exposed from the notch of the placement groove 24. When the piston rod of the actuating cylinder 25 is retracted, the locking block 26 can be pulled into the placement groove 24, so that the end of the locking block 26 remote from the actuating cylinder 25 is received in the placement groove 24.

The top surface of the guide bar 19 is formed with a receiving groove 27, and two ends of the receiving groove 27 are a connecting end 271 and a locking end 272.

The connection end 271 penetrates the guide bar 19 near the side wall of the bending frame 41, and the connection end 271 is located above the hinge shaft and communicates with the locking end 221.

The locking end 272 extends along the length of the guide bar 19. The two inner groove walls opposite to the locking end 272 are provided with the stoppers 28, and the distance between the two stoppers 28 is gradually decreased upwards.

The accommodating groove 22 and the accommodating groove 27 are matched to form a placing chamber, a bundling elastic sheet 29 is arranged in the placing chamber, and the side wall of the bundling elastic sheet 29 is abutted against the inner cavity wall of the placing chamber. One end of the elastic contracting-beam piece 29 extends to the position of the limiting end 222 and abuts against the bottom surface of the locking block 26, and the other end of the elastic contracting-beam piece 29 extends to the position of the locking end 272 and abuts against the bottom surface of the stop block 28. The middle part of the elastic bundling piece 29 is provided with a magnetic metal block 30, and the elastic bundling piece 29 can be tightly sucked and fixed through the magnetic metal block 30 when the electromagnet 23 is electrified.

The storage rack 4 is provided with a controller 33, and the controller 33 is electrically connected to the electromagnet 23 and the actuating cylinder 25 and controls the electromagnet 23 and the actuating cylinder 25. The stop 28 has a first contact 34 at the bottom and a second contact 35 at the top of the binding spring 29 near the locking end 272.

When the first contact piece 34 and the second contact piece 35 are tightly attached, the first contact piece 34 and the second contact piece 35 are conducted with each other, at this time, the controller 33 controls the electromagnet 23 to be electrified, the electromagnet 23 tightly sucks and fixes the bundling elastic piece 29 through the magnetic metal block 30, and the piston rod of the actuating cylinder 25 is controlled to extend out, so that the locking block 26 is exposed out of the placing groove 24 and tightly presses the bundling elastic piece 29 in the accommodating groove 27.

When the number of the pipes stored in the storage rack 4 is gradually increased, the pressure applied to the guide strip 19 lock is increased, the end part of the guide strip 19 far away from the bending rack 41 gradually moves downwards, and the end part of the guide strip 19 carrying the bundling elastic sheet 29 through the stop 28 moves downwards. Meanwhile, the contracting elastic sheet 29 deformed by pressure has a tendency of restoring deformation due to the elasticity of the contracting elastic sheet, and the tendency is gradually increased along with the rotation of the guide strip 19. The end of the contracting spring 29 pressed by the stopper 28 in this way can be gradually deformed and finally disengaged from the locking end 272.

When the first contact piece 34 is separated from the second contact piece 35, the controller 33 cuts off the electromagnet 23 to release the fastening function of the bundling elastic piece 29, and controls the piston rod of the execution cylinder 25 to retract to release the restriction function of the bundling elastic piece 29. At this time, the contracting elastic sheet 29 can be bounced from the placing chamber and tighten the pipe under the action of its own elasticity, so that the worker can conveniently move the pipe away from the storage rack 4.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. The utility model provides an automatic change double-end draw machine, includes board (1) and sets up two sets of draw mechanism (2), characterized by on board (1): the machine table (1) is provided with a feeding table (3) for storing pipes to be processed, a storage frame (4) for collecting the processed pipes and a pushing device (5) for conveying the pipes from one side of the feeding table (3) to one side of the storage frame (4);

the pushing device (5) comprises a bearing frame (51) arranged on the machine table (1), a pushing plate (52) connected to the bearing frame (51) in a sliding mode, a sliding cylinder (53) used for driving the pushing plate (52), an upper frame (54) arranged on the pushing plate (52), and a lifting cylinder (55) used for driving the upper frame (54) to lift;

a feeding through groove (6) penetrates through the top of the bearing frame (51), the feeding through groove (6) extends from one side of the feeding table (3) to one side of the storage frame (4), and the pushing plate (52) is connected in the feeding through groove (6) in a sliding manner;

the top of the bearing frame (51) is provided with a plurality of first grooves (7), the plurality of first grooves (7) are uniformly distributed along the length direction of the feeding through groove (6), the length direction of the first grooves (7) is perpendicular to the length direction of the feeding through groove (6), the top of the top frame (54) is provided with a plurality of second grooves (8), the distance between every two adjacent second grooves (8) is equal to the distance between every two adjacent first grooves (7), and the second grooves (8) are used for being communicated with the first grooves (7);

the two groups of pipe reducing mechanisms (2) are arranged on two sides of the pushing device (5) in a staggered mode.

2. The automatic double-head pipe reducing machine of claim 1, wherein: the push plate (52) is provided with a plurality of ejector pins (9), the ejector pins (9) are uniformly distributed along the length direction of the feeding through groove (6), and the tops of the ejector pins (9) are abutted against the bottom surface of the top frame (54).

3. The automatic double-head pipe reducing machine of claim 2, wherein: the bottom surface of the top frame (54) is provided with a guide post (10), a guide hole (11) is formed in the position, opposite to the guide post (10), of the top surface of the pushing plate (52), and the guide post (10) is connected in the guide hole (11) in a sliding mode.

4. The automatic double-head pipe reducing machine of claim 2, wherein: the receiving frame (51) is provided with a guiding curved surface (12) far away from the feeding table (3), and the guiding curved surface (12) is used for guiding a pipe fitting to enter the accommodating frame (4).

5. The automatic double-head pipe reducing machine of claim 1, wherein: the feeding table (3) comprises a supporting frame (31) and a feeding bin (32) arranged at the top of the supporting frame (31), the inner bottom surface of the feeding bin (32) inclines to one side of the pushing device (5), and a discharging hole (13) for a single pipe fitting to pass through is formed in the bottom of the feeding bin (32).

6. The automatic double-head pipe reducing machine of claim 5, wherein: discharge gate (13) deviate from the inner wall department of pusher (5) is provided with guide board (14), the bottom of guide board (14) is provided with arc (15), the opening orientation of arc (15) discharge gate (13) one side, the curved surface at arc (15) top with distance between discharge gate (13) is greater than the pipe fitting diameter of one time and is less than the pipe fitting diameter of twice.

7. The automatic double-head pipe reducing machine of claim 6, wherein: feed bin (32) inside is provided with pushes away strip (16), it is located to push away strip (16) discharge gate (13) top, just it fixes to push away strip (16) top feed bin (32) are close to pusher (5)'s inside wall department, feed bin (32) lateral wall department is provided with and promotes cylinder (17), the piston rod that promotes cylinder (17) runs through feed bin (32), and be used for with the bottom that pushes away strip (16) is to keeping away from pusher (5) one side promotes.

8. The automatic double-head pipe reducing machine of claim 1, wherein: accomodate frame (4) including crooked frame (41) and be used for supporting mount (42) of crooked frame (41), mount (42) both sides are provided with limiting plate (18), limiting plate (18) are used for spacing to the pipe fitting on crooked frame (41).

9. The automatic double-head pipe reducing machine according to claim 8, wherein: the bending frame (41) is far away from the end part of the machine table (1) and is hinged with a guide strip (19), and a spring (20) is arranged at the bottom of the guide strip (19).

10. The automatic double-head pipe reducing machine of claim 9, wherein: the bottom of the guide strip (19) is provided with a telescopic rod (21), and the spring (20) is sleeved on the telescopic rod (21).