CN111792340A - Automatic feeding device for pipe cutting machine - Google Patents

Abstract

The invention discloses an automatic feeding device for a pipe cutting machine, which comprises: the feeding unit is used for carrying out multiple component pushing on the whole bundle of steel pipe raw materials; the material distribution unit is used for distributing the pushed steel pipes singly; the discharging unit is used for bearing the steel pipes distributed by the distributing unit and discharging the distributed steel pipes in a single-layer parallel manner; the transfer mechanism is used for transferring the steel pipes discharged from the discharging unit, wherein the transfer quantity of the steel pipes of the transfer mechanism is controllable; and the feeding unit is used for conveying the transferred steel pipes to the cutting clamp in a mode of arranging and combining the steel pipes corresponding to the steel pipes required by the cutting clamp, wherein the feeding unit is used for aligning the end surfaces of the steel pipes before the steel pipes are conveyed, and the feeding unit, the distributing unit, the discharging unit, the transferring mechanism and the feeding unit are matched with one another to complete automatic feeding of the steel pipes. The steel pipe feeding device can reduce the participation degree of manpower when feeding steel pipes, and can improve the feeding efficiency of the steel pipes.

Description

Automatic feeding device for pipe cutting machine

Technical Field

The invention belongs to the field of steel pipe cutting, relates to a feeding technology of a pipe cutting machine, and particularly relates to an automatic feeding device for the pipe cutting machine.

Background

The steel pipe is a basic product with wide application, can be used for object conveying and mechanical equipment manufacturing, and can also be used as various supports and the like. When the steel pipe is used for manufacturing a certain product, the steel pipe needs to be cut at a fixed length, the cutting of the steel pipe is an important process required in the production process, and the steel pipe is usually cut mechanically through a pipe cutting machine.

In the past, steel pipe feeding of a pipe cutting machine basically depends on manual feeding, one steel pipe is arranged and tidied manually and then placed in a cutting clamp of the pipe cutting machine, the manual feeding is high in labor intensity, time-consuming and labor-consuming, the efficiency is low, and the processing beat is influenced.

With the progress of science and technology, some feeding devices gradually appear on the market, but these feeding devices generally have the defects of low feeding efficiency (usually, only a few steel pipes can be fed once) and much manual participation (the steel pipes need to be arranged and arranged manually), and in addition, the material storage space of some feeding devices is smaller, so that the feeding is frequently needed, and the production efficiency is also influenced.

Disclosure of Invention

The invention aims to provide an automatic feeding device for a pipe cutting machine, which can reduce the participation of manpower in steel pipe feeding, and can improve the feeding efficiency of steel pipes so as to improve the cutting efficiency of the steel pipes.

Therefore, the invention adopts the following technical scheme:

an automatic feeding device for a pipe cutting machine, comprising: the feeding unit is used for carrying out multiple component pushing on the whole bundle of steel pipe raw materials; the material distributing unit is used for distributing the steel pipes pushed by the feeding unit individually; the discharging unit is used for bearing the steel pipes distributed by the distributing unit and discharging the steel pipes distributed by the distributing unit in a single-layer parallel manner; the transfer mechanism is used for transferring steel pipes discharged from the discharge unit for corresponding times according to the number of steel pipe layers in the steel pipe arrangement combination style required by the cutting clamp, wherein one steel pipe layer is transferred each time, and the transfer quantity of the steel pipes of each steel pipe layer is controllable; and the feeding unit is used for integrally conveying the steel pipes transferred by the transfer mechanism to a cutting clamp of the pipe cutting machine, wherein the feeding unit is used for conveying the steel pipes along the length direction of the steel pipes, and is also used for aligning the end faces of the transferred steel pipes before the steel pipes are conveyed, and the feeding unit, the distributing unit, the discharging unit, the transfer mechanism and the feeding unit are matched with one another to complete automatic feeding of the steel pipes.

Further, the feeding unit comprises a material loading platform and a material pushing mechanism used for pushing the steel pipe, wherein the bearing surface of the material loading platform used for bearing the steel pipe raw material is arranged in an inclined mode, the material pushing mechanism can move up and down along the bearing surface, and the material pushing mechanism pushes the steel pipe raw material in a component mode for multiple times from bottom to top.

Furthermore, the material loading platform is composed of a plurality of material loading supports arranged in parallel at intervals, the material pushing mechanism comprises a moving assembly and material pushing supports driven by the moving assembly, the upper surface of each material loading support is arranged in an inclined mode, a corresponding material pushing mechanism is arranged on each material loading support, and the plurality of material pushing mechanisms act synchronously.

Furthermore, the material distributing unit comprises a material receiving frame and a material distributing mechanism, the material distributing mechanism comprises a chain type conveying assembly, a group of material distributing plates and material kicking plates, the chain type conveying assembly is used for upwards conveying the steel pipes on the material receiving frame, the material kicking plates are arranged on the material distributing plates, a steel pipe conveying space is formed between the material kicking plate on the previous material distributing plate and the next material distributing plate, and the steel pipe conveying space is reduced in the conveying process of the chain type conveying assembly so that the material kicking plates can kick back redundant steel pipes.

Furthermore, the chain type conveying assembly comprises a plurality of chain type conveying sub-units which are arranged in parallel, each chain type conveying sub-unit comprises two chain type transmission mechanisms which are arranged at intervals, each chain type transmission mechanism comprises a chain and a pair of chain wheels, a group of material distributing plates are arranged between the two chains in each chain type conveying sub-unit, and all the chain type transmission mechanisms in the chain type conveying assembly move synchronously.

Furthermore, the discharging unit and the feeding unit are respectively located on two sides of the distributing unit, the discharging unit comprises a bracket for bearing the steel pipes distributed by the distributing unit and a material pressing mechanism for preventing the steel pipes from being stacked on the bracket, the bracket can swing, the bracket has a tilting discharging state and a horizontal material taking state for the transfer mechanism to take the materials, the material pressing mechanism comprises a material pressing frame, the material pressing frame is provided with a material pressing position close to the bracket and a material taking position which is convenient for the transfer mechanism to take the materials and rotates away from the material pressing position, and when the material pressing frame is in the material pressing position and the bracket is in the material discharging state, a gap between the material pressing frame and the bracket only allows the steel pipes to be arranged in a single-layer mode.

Further, the bracket receives the steel pipes distributed by the distributing unit in a discharging state, and one end of the bracket close to the distributing unit is lower than the discharge hole of the distributing unit, so that the steel pipes distributed by the distributing unit fall on the bracket in a falling mode.

Further, the transfer mechanism comprises a rack, a movable platform movably arranged on the rack, a servo driving part used for driving the movable platform to act, and a steel pipe grabbing part arranged on the movable platform in a vertically movable mode, wherein the steel pipe grabbing part is an electromagnet.

Further, the feeding unit comprises a conveying roller way, an alignment head baffle plate used for aligning the end faces of the two ends of the steel pipe, and shaping components arranged at the two sides of the conveying roller way and used for shaping the steel pipe stacked on the conveying roller way, the shaping assembly comprises a plurality of vertical shafts arranged at two sides of the conveying roller way and a steel pipe shaping sleeve detachably connected on the vertical shafts, the steel pipes stacked on the conveying roller way are consistent with the steel pipe arrangement and combination style required by the pipe cutting clamp through the steel pipe shaping sleeve, wherein the conveying roller prop conveys a conveying station of the steel pipe to the cutting clamp and an alignment station for aligning the end face of the steel pipe, the conveying roller way realizes the switching between the conveying station and the aligning station through the driving of the station switching power component, when the conveying roller way is positioned at the alignment station, the alignment head baffle plates are respectively positioned at two ends of the conveying roller way.

Furthermore, the conveying roller ways are arranged in parallel, two pairs of flush baffles are correspondingly arranged, and two sets of sizing assemblies are correspondingly arranged.

The invention has the following technical effects:

(1) the automatic steel pipe feeding device is provided with the feeding unit, the distributing unit, the discharging unit, the transferring mechanism and the feeding unit, the distributing unit, the discharging unit, the transferring mechanism and the feeding unit are matched for operation, mechanical and orderly automatic feeding of steel pipes can be achieved, only the whole bundle of steel pipe raw materials hoisted into the feeding unit are subjected to loosening and removing of binding ropes in manual participation, and equipment supervision in the subsequent automatic feeding process, the whole feeding process is low in manual labor intensity, low in participation degree and high in automation degree, the whole bundle of steel pipe raw materials can be fed, and frequent feeding is not needed, so that the automatic steel pipe feeding device has the advantage of high steel pipe feeding efficiency.

(2) The feeding unit can meet the feeding requirement of the steel pipe arrangement and combination pattern required by the cutting clamp in the pipe cutting machine, and the stacking pattern of the steel pipes in the feeding unit corresponds to the steel pipe arrangement and combination pattern required by the cutting clamp when the feeding unit conveys the steel pipes to the cutting clamp, so that the cutting tool is utilized to the maximum extent, the maximum number of all the steel pipes can be achieved, and the pipe cutting efficiency of the pipe cutting machine is improved.

(3) The automatic feeding device is wide in application range, can be suitable for round steel pipes and flat oval steel pipes of various specifications, and can also realize automatic feeding of ultra-long pipes.

(4) To flat oval steel pipe, it itself exists difficult transport (unable natural roll), can have multiple gesture scheduling problem when putting, and this problem will lead to sending into behind the cutting jig of pipe cutting machine and pressing from both sides not tightly, and this causes cutting tool to break and then causes the incident easily when cutting the pipe.

The present invention overcomes this problem: in the invention, the bracket in the discharging unit is designed to be lower than the discharging port of the material distributing unit, so that the steel pipes distributed by the material distributing unit fall on the bracket in a falling mode, and the bracket is in an inclined discharging state, so that the flat elliptic steel pipes distributed by the material distributing unit lie on the bracket in a flat manner under the action of gravity no matter what posture the bracket falls in when the bracket is in the discharging state, thereby finishing the posture arrangement of the flat elliptic steel pipes on the bracket, keeping the same posture of the flat elliptic steel pipes on the bracket, and providing reliable guarantee for the subsequent quantitative transfer and normal and stable cutting of the flat elliptic steel pipes.

(5) The two conveying roller ways are arranged, and the conveying roller ways can be switched between the conveying station and the aligning station back and forth, so that when one conveying roller way conveys steel pipes to the pipe cutting machine, the other conveying roller way can be used for the transfer mechanism to stack the steel pipes, the time for the pipe cutting machine to stop and wait for feeding can be shortened, and the pipe cutting efficiency can be further improved.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of an automatic feeding device for a pipe cutting machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of an automatic loading device for a pipe cutter according to an embodiment of the present invention in another orientation;

FIG. 3 shows a front view of the automatic loading device of FIG. 1;

FIG. 4 shows a top view of the automatic feeding device of FIG. 1;

FIG. 5 is an enlarged view of a portion of the material dispensing unit of FIG. 3;

fig. 6 is a schematic view of the carriage in the discharge unit in a discharge state and the material holder in a material pressing position;

fig. 7 is a schematic view of the bracket in the discharge unit in a material taking state and the material holder in a material taking position;

FIG. 8a shows the layout pattern of flat oval steel tubes of one gauge;

FIG. 8b shows the layout pattern of a round steel tube of one gauge; and

fig. 8c shows the arrangement pattern of round steel pipes of another specification.

Description of the reference numerals

1. A feed unit; 11. A material loading platform;

111. a bearing surface; 112. A material loading bracket;

12. a material pushing mechanism; 121. A moving assembly;

1211. moving the trolley; 1212. A rotating wheel;

1213. an auxiliary roller; 122. A material pushing bracket;

123. a material pushing motor; 2. A material distributing unit;

21. a material receiving frame; 22. A material distributing mechanism;

221. a chain conveyor assembly; 2211. A chain;

2212. a sprocket; 222. A material distributing plate;

223. a kicking plate; 3. A discharge unit;

31. a bracket; 32. A material pressing mechanism;

321. a material pressing frame; 3211. A material pressing plate;

3212. a connecting beam; 322. A material pressing cylinder;

4. a transfer mechanism; 41. A frame;

42. a mobile platform; 43. A servo drive section;

44. a steel pipe gripping member; 45. A steel pipe material grabbing cylinder;

46. a cross beam; 5. A feeding unit;

51. a rollgang; 52. A flush baffle;

53. a sizing assembly; 531. A vertical shaft;

532. a steel pipe sizing sleeve; 54. A station switching power component;

55. a base.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 7, the automatic feeding device for a pipe cutting machine according to the present invention includes a feeding unit 1 for pushing an entire bundle of steel pipe raw material by a plurality of times, a material distributing unit 2 for individually distributing a plurality of steel pipes pushed by the feeding unit 1, a discharging unit 3, a transferring mechanism 4 for transferring steel pipes discharged from the discharging unit 3, and a feeding unit 5 for feeding steel pipes to a cutting jig of the pipe cutting machine. The discharging unit 3 is used for carrying the steel pipes distributed by the distributing unit 2 and discharging the steel pipes distributed by the distributing unit 2 in a single-layer parallel manner.

The steel pipe transfer quantity of the transfer mechanism 4 is controllable, so that the transfer mechanism 4 can perform corresponding quantitative transfer of the steel pipes at each time of steel pipe transfer according to the steel pipe arrangement and combination pattern required by a cutting clamp in the pipe cutting machine, and the transfer mechanism 4 performs corresponding times of steel pipe transfer according to the number of steel pipe layers in the steel pipe arrangement and combination pattern required by the cutting clamp, so that the transfer mechanism 4 can completely transfer the steel pipes according to the number of steel pipe layers and the number of steel pipes in the steel pipe arrangement and combination pattern required by the cutting clamp before the feeding unit 5 performs one feeding.

The feeding unit 5 feeds the steel pipe transferred by the transfer mechanism 4 to the cutting jigs of the pipe cutting machine in a pattern corresponding to the arrangement and combination of the steel pipes required by the cutting jigs, wherein the feeding unit 5 feeds the steel pipe in the longitudinal direction of the steel pipe, and the feeding unit 5 aligns the end surfaces of the transferred steel pipe before the steel pipe is fed.

The automatic feeding device for the pipe cutting machine further comprises a control unit, and the control unit controls and coordinates the matching operation among the feeding unit 1, the distributing unit 2, the discharging unit 3, the transferring mechanism 4 and the feeding unit 5 so as to realize the automatic feeding of the steel pipes.

When the pipe cutting machine is used for cutting steel pipes, the steel pipes with different specifications are arranged in the cutting clamp in different patterns, so that the cutting tool is effectively utilized to the maximum extent, the maximum number of all the steel pipes is reached, and the arrangement patterns of the steel pipes in the cutting clamp are the steel pipe arrangement combination patterns required by the cutting clamp.

Referring to fig. 1 to 7, the feeding unit 1 includes a material loading platform 11 and a material pushing mechanism 12 for pushing the steel pipe. The bearing surface 111 of the loading platform 11 for bearing the steel tube raw material is arranged obliquely, the pushing mechanism 12 can move up and down along the bearing surface 111, and the pushing mechanism 12 comprises a moving assembly 121 and a pushing support 122 driven by the moving assembly 121.

After the whole bundle of steel pipe raw materials are hoisted into the feeding unit 1 through the hoisting device, the steel pipe raw materials are stacked above the pushing support 122, the pushing support 122 stops the steel pipe raw materials so as to prevent the steel pipe raw materials from sliding along the bearing surface 111, and the pushing mechanism 12 pushes the steel pipe raw materials in a plurality of times by weight from bottom to top.

Referring to fig. 1 to 7, the material loading platform 11 is composed of a plurality of material loading brackets 112 arranged in parallel at intervals, the upper surfaces of the material loading brackets 112 are arranged in an inclined manner, and each material loading bracket 112 is provided with a corresponding material pushing mechanism 12. The steel pipe raw material pile is placed on the upper surfaces of the plurality of material loading brackets 112 and stopped by the material pushing brackets 122, and the upper surfaces of the plurality of material loading brackets 112 form the bearing surface 111.

The moving assembly 121 comprises a moving trolley 1211 capable of moving up and down along the upper surface of the material loading bracket 112, a rotating wheel 1212 rotatably connected to the material loading bracket 112, a nylon rope belt wound on the rotating wheel 1212 and fixedly connected with the moving trolley 1211 and used for towing the moving trolley 1211, and an auxiliary roller 1213 rotatably arranged at the top of the material loading bracket 112.

The auxiliary roller 1213 is provided with a guide groove for guiding movement of a nylon cord, the nylon cord passes through the auxiliary roller 1213 and is located in the guide groove, the turning direction of the turning wheel 1212 is changed to move the moving cart 1211 up and down, and when the turning wheel 1212 winds the nylon cord, the moving cart 1211 moves up and drives the pushing support 122 to move up to push the steel pipe.

All the rotating wheels 1212 of the plurality of pushing mechanisms 12 share one driving shaft, the driving shaft is driven by a pushing motor 123, and the pushing motor 123 is a speed reduction motor. The coaxial design of all the rotating wheels 1212 in the plurality of pushing mechanisms 12 enables the plurality of pushing mechanisms 12 to act synchronously, thereby providing reliable guarantee for keeping consistency of pushing of all the pushing brackets 122 on the steel pipes.

The pushing mechanism 12 further includes a travel switch for controlling the travel of the moving cart 1211 in an up-and-down direction, when the moving cart 1211 moves up to trigger the travel switch above, the pushing motor 123 changes the direction of the moving cart 1211, the moving cart 1211 moves down under the action of gravity, and when the moving cart 1211 moves down to trigger the travel switch below, the pushing motor 123 changes the direction of the moving cart 123 again, so that the rotating wheel 1212 winds up the nylon rope, thereby driving the moving cart 1211 to move up.

The upward movement of the dolly 1211 corresponds to the pushing of the steel pipes, and the dolly is immediately moved downward when the upper travel switch is triggered, so that only a small part of the steel pipes is pushed into the material distributing unit 2 during one upward movement of the dolly 1211.

The arrangement of the travel switch realizes that the material pushing mechanism 12 only pushes a small part of the steel pipe into the material distributing unit 2 at a time, and can push the raw material of the steel pipe for multiple times. The feeding unit 1 can feed a whole bundle of materials (about hundreds of materials) at a time, and the multi-time component pushing mode can avoid the situation that the material distribution efficiency is low and even safety accidents occur due to stacking or crossing of pipe materials when the whole bundle of materials is directly pushed into the material distribution unit 2.

The upper part of the material loading support 112 is provided with a photoelectric detection switch for detecting whether the steel pipe raw material is still stored on the material loading support 112.

Referring to fig. 1 to 7, the material distributing unit 2 includes a material receiving frame 21 connected to the discharging side of the feeding unit 1 and disposed obliquely, and a material distributing mechanism 22 for individually distributing the steel pipes pushed by the feeding unit 1 on the material receiving frame 21.

The material receiving frame 21 is composed of a plurality of sub-frames arranged at intervals, and the bottom of each sub-frame is provided with a supporting plate for preventing the steel pipe from falling.

As shown in fig. 1 to 7, the distributing mechanism 22 includes a chain conveyor 221 for conveying the steel pipes on the material receiving frame 21 upwards, a distributing plate 222 for supporting the steel pipes to distribute the steel pipes, and a kicking plate 223 welded to the middle of the distributing plate 222 for kicking back the excess steel pipes on the distributing plate 222.

The chain conveying assembly 221 includes a plurality of chain conveying subunits arranged in parallel, each chain conveying subunit includes two chain transmission mechanisms arranged at intervals, each chain transmission mechanism includes a chain 2211 and a pair of chain wheels 2212, and a group of distributing plates 222 is spanned between the two chains 2211 in each chain conveying subunit. In order to prevent the steel pipes from falling off the material distributing plate 222 during the upward conveying process, the chain transmission mechanism is arranged to be inclined upward.

The pair of chain wheels 2212 is composed of a driving chain wheel and a driven chain wheel, the driving chain wheel is located obliquely above the driven chain wheel, all the driving chain wheels in the chain conveying assembly 221 share one chain wheel driving shaft, the chain wheel driving shaft is driven by a chain wheel motor, and the chain wheel motor is a speed reduction motor. The coaxial design of the driving sprocket enables all chain transmission mechanisms in the chain transmission assembly 221 to act synchronously, and provides reliable guarantee for stably distributing steel pipes.

The group of material distributing plates 222 are dispersedly arranged on the chain bodies of the two corresponding chains 2211, the length direction of the material distributing plates 222 is consistent with the length direction of the steel pipes to be distributed, the kicking plates 223 are welded on each material distributing plate 222, and the kicking plates 223 are located between the two adjacent material distributing plates 222.

Each chain type conveying sub-unit is respectively positioned between two adjacent sub-frames, and the chain body section of the chain 2211 adjacent to the material receiving frame 21 extends into the material receiving area of the material receiving frame 21, so that the steel pipes on the material receiving frame 21 are further prevented from falling off, and the steel pipes on the material receiving frame 21 can be directly distributed.

As shown in fig. 3 to 7, an end of the kick plate 223 far from the material distributing plate 222 is inclined toward the inside of the chain 2211 with respect to an end connected to the material distributing plate 222, an end of the kick plate 223 far from the material distributing plate 222 has an inclined edge and is in a sharp angle shape, and a steel pipe conveying space (steel pipe storage space) is provided between the kick plate 223 on the previous material distributing plate 222 and the next material distributing plate 222.

When the material distributing plate 222 moves upward near the driving sprocket on the upper side, due to the change of the movement track of the chain 2211 (linear movement is changed into circular movement), the steel pipe conveying space is reduced to store only one steel pipe after the chain 2211 moves upward to a curved arc section (corresponding to the driving sprocket), and the material kicking plate 223 mounted on the former material distributing plate 222 can kick back the redundant steel pipes on the latter material distributing plate 222, so that at most one steel pipe is distributed at each time (if a plurality of steel pipes are distributed at one time, the steel pipes can be crossed or stacked, so that the transfer mechanism 4 cannot accurately take materials according to the set number), and the subsequent material discharging and the counting material taking are facilitated.

The sharp corner design of one end of the kicking plate 223 far away from the material distributing plate 222 enables the kicking plate 223 to be suitable for distributing steel pipes of various specifications without changing the shape, and the auxiliary work time for changing production is saved.

It should be noted that only a part of the material distributing plate 222 is shown in fig. 5, and in fact, the material distributing plate 222 is distributed over the whole chain body of the chain 2211.

As shown in fig. 1 to 7, the discharging unit 3 and the feeding unit 1 are respectively located at two sides of the material dividing unit 2, and the discharging unit 3 includes a bracket 31 for receiving the steel tubes divided by the material dividing unit 2 and a pressing mechanism 32 for preventing the steel tubes from being stacked on the bracket 31.

Wherein the bracket 31 is driven by a bracket swinging cylinder to swing, the bracket 31 is composed of a plurality of sub-brackets, a swinging shaft is shared by the sub-brackets, and the swinging shaft is rotatably arranged on the bracket seat. One end of each sub-bracket, which is far away from the material distributing unit 2, is provided with a stop plate.

As shown in fig. 1 to 3, fig. 6 and fig. 7, the carriage 31 has a tilting discharging state and a horizontal discharging state for discharging the material from the transfer mechanism 4. When the bracket 31 is in a discharging state, one end of the bracket 31 adjacent to the material distributing unit 2 is higher than one end of the bracket 31 far away from the material distributing unit 2, and when the bracket 31 is in the discharging state when receiving the steel pipes distributed by the material distributing unit 2, the bracket 31 is inclined, so that the distributed steel pipes can be automatically and tightly arranged on the bracket 31 by utilizing gravity.

The pressing mechanism 32 includes a pressing frame 321 and a pressing cylinder 322 for driving the pressing frame 321 to move, wherein the pressing frame 321 includes a plurality of pressing plates 3211 arranged at intervals and a connecting beam 3212 for connecting the plurality of pressing plates 3211 together, one end of the pressing plate 3211 is fixed in a hinged manner, and the front end of a piston rod of the pressing cylinder 322 is movably connected with the connecting beam 3212. Specifically, a connecting seat may be welded to the connecting beam 3212, and the front end of the piston rod of the swaging cylinder 322 is hinged to the connecting seat.

As shown in fig. 1 to 3, fig. 6 and fig. 7, when the piston rod in the material pressing cylinder 322 extends, the connecting beam 3212 drives the material pressing plate 3211 to rotate, so that the material pressing frame 321 has a material pressing position close to the bracket 31 and a material taking position away from the material pressing position, which is convenient for the transferring mechanism 4 to take materials. The material pressing frame 321 is in the material pressing position as shown in fig. 6, and the material pressing frame 321 is in the material taking position as shown in fig. 3 and 7.

When the bracket 31 receives the steel pipe distributed by the distributing unit 2, the pressing frame 321 is pressed down to be in a pressing position.

When the material pressing frame 321 is in a material pressing position and the bracket 31 is in a material discharging state, the gap between the material pressing plate 3211 in the material pressing frame 321 and the bracket 31 is only enough for a single steel pipe to pass through in sequence, so that the arrangement of the steel pipes in a single layer is only allowed.

The material pressing mechanism 32 ensures that the steel pipes are discharged on the bracket 31 in a single layer, so that reliable guarantee is provided for accurate counting of the steel pipes and subsequent quantitative transfer of the steel pipes.

And a counting detection switch for counting the steel pipes is arranged on the bracket 31.

As shown in fig. 1 to 7, an end of the bracket 31 adjacent to the feed unit 2 is lower than the feed outlet of the feed unit 2 (specifically, an end of the bracket 31 adjacent to the feed unit 2 may be designed to be lower than the rotation center of the driving sprocket). The design is such that the steel tube dispensed by the dispensing unit 2 has a falling process and can fall on the bracket 31 in a falling mode.

To flat oval steel pipe, it itself exists difficult transport (unable natural roll), can have multiple gesture scheduling problem when putting, and this problem will lead to sending into behind the cutting jig of pipe cutting machine and pressing from both sides not tightly, and this causes cutting tool to break and then causes the incident easily when cutting the pipe.

Therefore, in the invention, the bracket 31 is designed to be lower than the discharge hole of the material distribution unit 2, so that the steel pipes distributed by the material distribution unit 2 fall on the bracket 31 in a falling mode, and the bracket 31 has a discharge state in an inclined mode, so that the flat oval steel pipes distributed by the material distribution unit 2 lie on the bracket 31 in a flat part under the action of gravity no matter what posture the bracket 31 falls in when in the discharge state, thereby finishing the posture arrangement of the flat oval steel pipes on the bracket 31, keeping the same posture of the flat oval steel pipes on the bracket 31, and providing reliable guarantee for the subsequent quantitative transfer and normal and stable cutting of the flat oval steel pipes.

In case that the flat elliptic steel pipe falls on the bracket 31 not in a flat lying posture but in an arc section part to contact the bracket 31, the flat elliptic steel pipe in such a posture is changed into a flat lying posture by the collision of the pressure plate 3211 in the process of sliding down.

When the material pressing frame 321 is in a material pressing position and the bracket 31 is in a material discharging state, the gap between the material pressing plate 3211 and the bracket 31 meets the requirements of round tubes of phi 13, phi 16, phi 18, phi 19 and phi 22 and flat oval steel tubes of 22 × 16 and 22 × 11 in single-layer discharge.

As shown in fig. 1 to 7, the transfer mechanism 4 includes a frame 41, a moving platform 42 movably disposed on the frame 41, a servo driving unit 43 for driving the moving platform 42, and a steel pipe gripping unit 44 disposed on the moving platform 42 to be movable up and down. The steel pipe gripping part 44 is provided with a plurality of electromagnets for facilitating the taking and placing of the steel pipes, and the steel pipe gripping part 44 is distributed.

Wherein, moving platform 42 can slide at the top of frame 41 through slider guide rail assembly, servo drive part 43 is servo motor (servo motor has the characteristics that control accuracy is high), servo drive part 43 is controlled by the control unit, be equipped with the gear on servo motor's the motor shaft, be provided with the rack that the level was arranged on the frame 41, servo drive part 43 installs on moving platform 42, servo motor during operation drive the gear revolve, the gear and rack meshing, the gear can move on the rack and then drive moving platform 42 moves on frame 41.

Referring to fig. 1 to 7, a set of steel pipe gripping cylinders 45 (only one is shown) arranged vertically is further installed on the moving platform 42, a cross beam 46 arranged along the length direction of the steel pipe is fixedly connected to the front end of a piston rod of the steel pipe gripping cylinder 45, and a plurality of steel pipe gripping components 44 are installed on the cross beam 46. The steel pipe material grabbing cylinder 45 is a stroke-adjustable cylinder.

In the invention, the servo driving part 43 accurately controls the horizontal movement displacement of the electromagnet to realize quantitative grabbing and transferring of the steel pipe. The programs of the steel pipes with different specifications are set in the control unit in advance.

The pressing cylinder 322 is installed on the frame 41, and one end of the pressing plate 3211 is connected to the frame 41 in a hinged manner.

Referring to fig. 1 to 7, the feeding unit 5 is located in a vacant area below the frame 41, and the feeding unit 5 includes a roller conveyor 51, an alignment baffle 52 for aligning end faces of two ends of a steel pipe, and a shaping assembly 53 disposed at two sides of the roller conveyor 51 for shaping the steel pipe stacked on the roller conveyor 51.

The conveying roller way 51 is installed on a base 55, the base 55 is movably arranged through a slider guide rail assembly arranged at the bottom of the base, the feeding unit 5 further comprises a station switching power part 54, the station switching power part 54 is a horizontally arranged cylinder, the station switching power part 54 is fixedly connected with the base 55, the base 55 is driven to move through the station switching power part 54, and the moving direction of the base 55 is consistent with that of the moving platform 42.

The conveying roller way 51 is provided with a conveying station for conveying the steel pipes to the cutting fixture and an alignment station for aligning the end faces of the steel pipes, the conveying station and the alignment station are both positioned on a moving route of the base 55, the conveying roller way 51 is switched between the conveying station and the alignment station through driving of the station switching power part 54, and when the conveying roller way 51 is positioned at the alignment station, the alignment head baffles 52 are respectively positioned at two ends of the conveying roller way 51.

As shown in fig. 1 to 3, 6 and 7, the shaping assembly 53 includes a plurality of vertical shafts 531 disposed at both sides of the conveying roller table 51 and a plurality of steel pipe shaping sleeves 532 detachably connected to the corresponding vertical shafts 531. Specifically, the vertical shaft 531 is provided with a limiting step, and the steel tube sizing sleeve 532 is movably sleeved on the vertical shaft 531, so that the steel tube sizing sleeve can rotate in the steel tube conveying process to reduce the obstruction to the steel tube. The steel pipe shaping sleeve 532 is convenient to disassemble and replace in a movable sleeve arrangement mode.

The steel pipe sizing sleeves 532 positioned at two sides of the conveying roller way 51 limit the side surfaces of the steel pipes, so that the steel pipes stacked on the conveying roller way 51 can keep the arrangement and placement style which is the same as the arrangement and combination style of the steel pipes required by the pipe cutting clamp. The steel pipes with different specifications have different steel pipe arrangement and combination patterns, so the steel pipe sizing sleeves 532 adopted for the steel pipes with different specifications are different, each steel pipe with different specifications corresponds to one steel pipe sizing sleeve 532, and the corresponding steel pipe sizing sleeve 532 is replaced before the steel pipes with different specifications are fed and cut.

As shown in fig. 8a to 8c, the placing patterns of two kinds of round steel pipes and one kind of flat oval steel pipe are shown.

The conveying roller way 51 receives the steel pipes transferred by the transfer mechanism 4 at the alignment station, after the steel pipes are placed on the conveying roller way 51 as required, the conveying roller way 51 is started to drive the steel pipes to impact the flush baffle plates 52 at two ends, and the steel pipes conveyed at the same time are aligned in the end face mode through the mixed use of high-speed impact and low-speed impact. In actual production, after the steel pipes are aligned in the mode, the error of the end faces of the steel pipes in the length direction is smaller than 1mm, and the machining requirements are completely met.

The feeding unit 5 can meet the feeding requirement of the steel pipe arrangement and combination pattern required by the cutting clamp in the pipe cutting machine, and when the steel pipe is conveyed to the cutting clamp by the feeding unit 5, the stacking pattern of the steel pipe in the feeding unit 5 corresponds to the steel pipe arrangement and combination pattern required by the cutting clamp, so that the maximum cutting tool is utilized to the maximum extent, the maximum cutting number can be reached, and the pipe cutting efficiency of the pipe cutting machine is improved.

Further, as shown in fig. 1 to 7, two conveying roller ways 51 are arranged in parallel, two pairs of flush baffles 52 are correspondingly arranged, and two sets of sizing assemblies 53 are correspondingly arranged. The two rollgang 51 are mounted on a base 55, the two rollgang 51 share a conveying station, and the two rollgang 51 have an alignment station respectively, and the two alignment stations are located at two sides of the conveying station.

The arrangement of the two conveying roller ways 51 can ensure that when one conveying roller way 51 conveys steel pipes to the pipe cutting machine, the other conveying roller way 51 can be used for the transfer mechanism 4 to stack the steel pipes, so that the time for the pipe cutting machine to stop for waiting for feeding can be reduced, and the pipe cutting efficiency can be further improved.

The invention has wide application range, can be particularly suitable for round steel pipes with the specifications of phi 13, phi 16, phi 18, phi 19 and phi 22, can also be suitable for flat oval steel pipes with the specifications of 22 multiplied by 16 and 22 multiplied by 11, and is also suitable for ultra-long pipe materials (the longest is 6 meters, the maximum length-diameter ratio is more than 400, and the wall thickness is about 1 millimeter).

The working process of the invention can be simply summarized as follows:

firstly, the feeding unit 1 pushes the steel pipe raw materials into the distributing unit 2 (the whole bundle of steel pipe raw materials are pushed by the feeding unit 1 for multiple times in a component manner);

then, the material distribution unit 2 distributes the pushed steel pipes individually;

then, the discharging unit 3 discharges the steel pipes distributed by the distributing unit 2 in a single layer (the bracket 31 in the discharging unit 3 is horizontal when the transfer mechanism 4 takes the steel pipes, and is inclined when receiving the steel pipes distributed by the distributing unit 2 and discharging the steel pipes again after the transfer mechanism 4 transfers part of the steel pipes);

then, the transfer mechanism 4 quantitatively transfers the discharged steel pipes onto the rollgang 51 (the number and times of transferring the steel pipes of the transfer mechanism 4 are based on the steel pipe arrangement and combination pattern required by the cutting fixture, and the rollgang 51 is located on the alignment station at this time);

then, the rollgang 51 aligns the end faces of the transferred and placed steel tubes, switches the rollgang 51 to a conveying station after alignment, and finally conveys the steel tubes to a cutting fixture (two rollgangs 51 can convey one steel tube and one steel tube is placed).

The feeding unit, the distributing unit, the discharging unit, the transferring mechanism and the feeding unit are coordinated and matched with each other through the control unit, so that the mechanized orderly automatic feeding of the steel pipes can be realized, only the whole bundle of steel pipe raw materials hoisted into the feeding unit is loosened, the binding ropes are removed, and equipment in the subsequent automatic feeding process is taken care of, so that the whole feeding process is low in labor intensity, low in participation and high in automation degree, and the whole bundle of steel pipe raw materials can be fed without frequent feeding, so that the steel pipe feeding device has the advantage of high steel pipe feeding efficiency.

The invention liberates manpower and has little manual demand, and can realize that one person can watch a plurality of devices.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An automatic feeding device for a pipe cutting machine, comprising:

the feeding unit (1) is used for carrying out multiple component pushing on the whole bundle of steel pipe raw materials;

the material distribution unit (2) is used for carrying out single distribution on the plurality of steel pipes pushed by the feeding unit (1); the discharging unit (3) is used for bearing the steel pipes distributed by the distributing unit (2) and discharging the steel pipes distributed by the distributing unit (2) in a single-layer parallel manner;

the transfer mechanism (4) is used for transferring steel pipes discharged from the discharge unit (3) for corresponding times according to the number of steel pipe layers in the steel pipe arrangement combination pattern required by the cutting clamp, wherein one layer is transferred each time, and the transfer quantity of the steel pipes of each layer is controllable; and

a feeding unit (5) for integrally conveying the steel pipe transferred by the transfer mechanism (4) to a cutting jig of a pipe cutting machine, wherein the feeding unit (5) conveys the steel pipe in the length direction of the steel pipe, the feeding unit (5) is also used for aligning the end surfaces of the transferred steel pipe before the steel pipe is conveyed,

the automatic steel pipe feeding device comprises a feeding unit (1), a distributing unit (2), a discharging unit (3), a transferring mechanism (4) and a feeding unit (5), wherein the feeding unit (1), the distributing unit (2), the discharging unit (3), the transferring mechanism (4) and the feeding unit (5) are matched with one another to complete automatic feeding of steel pipes.

2. The automatic feeding device for the pipe cutting machine according to claim 1, wherein the feeding unit (1) comprises a material loading platform (11) and a material pushing mechanism (12) for pushing the steel pipe, wherein the material loading platform (11) is provided with a loading surface (111) for loading the steel pipe raw material in an inclined manner, the material pushing mechanism (12) can move up and down along the loading surface (111), and the material pushing mechanism (12) pushes the steel pipe raw material in multiple component directions from bottom to top.

3. The automatic feeding device for the pipe cutting machine according to claim 2, wherein the material loading platform (11) is composed of a plurality of material loading supports (112) arranged in parallel at intervals, the material pushing mechanism (12) comprises a moving assembly (121) and a material pushing support (122) driven by the moving assembly (121), the upper surface of the material loading supports (112) is arranged in an inclined manner, each material loading support (112) is provided with a corresponding material pushing mechanism (12), and the plurality of material pushing mechanisms (12) are synchronous in action.

4. The automatic feeding device for the pipe cutting machine according to claim 1, wherein the material distribution unit (2) comprises a material receiving frame (21) and a material distribution mechanism (22), the material distribution mechanism (22) comprises a chain type conveying assembly (221) for conveying the steel pipes on the material receiving frame (21) upwards, a group of material distribution plates (222) and kicking plates (223), wherein each material distribution plate (222) is provided with the kicking plate (223), a steel pipe conveying space is formed between the kicking plate (223) on the previous material distribution plate (222) and the next material distribution plate (222), and the steel pipe conveying space is reduced in the conveying process of the chain type conveying assembly (221) so that the kicking plates (223) can kick back the redundant steel pipes.

5. The automatic feeding device for pipe cutting machines according to claim 4, characterized in that the chain conveying assembly (221) comprises a plurality of chain conveying subunits arranged side by side, each chain conveying subunit comprises two chain transmission mechanisms arranged at intervals, the chain transmission mechanisms comprise a chain (2211) and a pair of chain wheels (2212), a group of material distributing plates (222) are arranged between the two chains (2211) in each chain conveying subunit, and all the chain transmission mechanisms in the chain conveying assembly (221) are in synchronous action.

6. The automatic feeding device for the pipe cutting machine according to claim 1, wherein the discharging unit (3) and the feeding unit (1) are respectively located at two sides of the material distributing unit (2), the discharging unit (3) comprises a bracket (31) for receiving the steel pipes distributed by the material distributing unit (2) and a material pressing mechanism (32) for preventing the steel pipes from being stacked on the bracket (31), wherein the bracket (31) can swing, the bracket (31) has a tilted discharging state and a horizontal discharging state for discharging the steel pipes from the transferring mechanism (4), the material pressing mechanism (32) comprises a material pressing frame (321), the material pressing frame (321) has a material pressing position close to the bracket (31) and a material discharging position away from the material pressing position for facilitating the material discharging of the transferring mechanism (4), and when the material pressing frame (321) is at the material discharging position, When the bracket (31) is in a discharging state, the gap between the material pressing frame (321) and the bracket (31) only allows the steel pipes to be arranged in a single-layer mode.

7. The automatic feeding device for pipe cutting machines according to claim 6, characterized in that the carriage (31) receives the steel pipes dispensed by the dispensing unit (2) in a discharge position, and in that the end of the carriage (31) adjacent to the dispensing unit (2) is lower than the outlet of the dispensing unit (2) so that the steel pipes dispensed by the dispensing unit (2) fall onto the carriage (31) in a falling manner.

8. The automatic feeding device for the pipe cutting machine according to claim 1, wherein the transfer mechanism (4) comprises a frame (41), a moving platform (42) movably disposed on the frame (41), a servo driving part (43) for actuating the moving platform (42), and a steel pipe gripping part (44) disposed on the moving platform (42) movably up and down, wherein the steel pipe gripping part (44) is an electromagnet.

9. The automatic feeding device for the pipe cutting machine according to claim 1, wherein the feeding unit (5) comprises a rollgang (51), an alignment baffle (52) for aligning the end faces of the two ends of the steel pipes, and a shaping assembly (53) arranged at both sides of the rollgang (51) for shaping the steel pipes stacked on the rollgang (51),

the shaping assembly (53) comprises a plurality of vertical shafts (531) arranged at two sides of the conveying roller way (51) and steel pipe shaping sleeves (532) detachably connected to the vertical shafts (531), steel pipes stacked on the conveying roller way (51) are consistent with the steel pipe arrangement and combination style required by the pipe cutting clamp through the steel pipe shaping sleeves (532),

the steel pipe end face alignment device comprises a conveying roller way (51), a power part (54) and an alignment part, wherein the conveying roller way (51) is provided with a conveying station for conveying steel pipes to the cutting clamp and an alignment station for aligning the end faces of the steel pipes, the conveying roller way (51) is driven by the power part (54) to realize switching between the conveying station and the alignment station, and when the conveying roller way (51) is located at the alignment station, the alignment baffle plates (52) are respectively located at two ends of the conveying roller way (51).

10. The automatic feeding device for the pipe cutting machine according to claim 9, wherein two conveying roller ways (51) are arranged in parallel, two pairs of flush baffles (52) are correspondingly arranged, and two sets of sizing assemblies (53) are correspondingly arranged.

Images