CN105729121A

CN105729121A - Pipe bending machine

Info

Publication number: CN105729121A
Application number: CN201610193016.8A
Authority: CN
Inventors: 孙征
Original assignee: Individual
Current assignee: Beijing Tianbao Tianbao Automation Technology Co Ltd
Priority date: 2016-03-30
Filing date: 2016-03-30
Publication date: 2016-07-06
Anticipated expiration: 2036-03-30
Also published as: CN105729121B

Abstract

The invention discloses a pipe bending machine. The pipe bending machine comprises a flattening mechanism, a flat pipe bending mechanism and a cutting mechanism. The flattening mechanism is provided with an input part for entering of a pipe, a pressing part flattening the pipe, and an output part outputting the flattened pipe. The flat pipe bending mechanism is provided with a flat pipe conveying part and a rotating pipe bending part. The flat pipe conveying part receives the flat pipe and conveys the flat pipe to the rotating pipe bending part, and the rotating pipe bending part bends the flat pipe into a bent pipe. The cutting mechanism is located on one side of the flat pipe bending mechanism and used for cutting the bent pipe. Compared with the prior art, the pipe bending machine has the following beneficial effects that the multiple mechanisms cooperate with one another, the pipe is flattened, then bent and cut, work can be automatically finished, the machine cooperation efficiency is high, and the production efficiency is improved; and the requirement for operators is low, and the operator cost is reduced.

Description

Pipe bending machine

Technical Field

The present disclosure relates generally to the field of machining, and more particularly to the field of pipe fitting machining, and more particularly to a pipe fitting bending machine.

Background

At present, when the pipe fitting is bent, each step is manually finished, for example, manual feeding is carried out, the pipe fitting is flattened, the flattened pipe fitting (flat pipe) is manually fixed on a bending machine, and the flat pipe is pressed by a pressing plate. And manually starting the machine to bend the flat pipe.

Traditional pipe fitting process of bending needs manual operation, and is inefficient, can not guarantee that the quality is unified, needs skilled workman's operation when the manual work is fixed and use the clamp plate, has increased the reliance to technical worker, is unfavorable for the development.

Disclosure of Invention

In view of the above-mentioned deficiencies and inadequacies of the prior art, it would be desirable to provide a pipe bender comprising: the device comprises a flattening mechanism, a flat pipe bending mechanism and a cutting mechanism; the flattening mechanism is provided with an input part for the pipe fitting to enter, a pressing part for flattening the pipe fitting and an output part for outputting the flattened pipe fitting; the flat tube bending mechanism is provided with a flat tube conveying part and a rotary bent tube part, the flat tube conveying part receives the flat tube and sends the flat tube into the rotary bent tube part, and the rotary bent tube part bends the flat tube into a bent tube; the cutting mechanism is positioned on one side of the flat pipe bending mechanism and used for cutting off the bent pipe.

Preferably, the press section is provided between the input section and the output section, and has a press roller, a press inlet and a press outlet; the compression roller is arranged between the pressing inlet and the pressing outlet and is used for flattening the pipe fitting; the input part faces the pressing inlet and is used for feeding the pipe fitting into the pressing part; the output part faces to the pressing outlet and is used for outputting the flattened pipe fitting.

Preferably, the swivel elbow part comprises: a rotating part; the positioning part is positioned above the rotating part, and a gap for the flat pipe to pass through is formed between the positioning part and the rotating part; the fixing part is arranged on the rotating part and used for fixing the flat pipe penetrating through the gap; and the pressing part is positioned above the rotating part, coaxially rotates with the rotating part and is used for pressing the flat pipe on the rotating part.

Preferably, a pipe conveying mechanism is further arranged between the flattening mechanism and the flat pipe bent pipe and used for conveying the flat pipe output by the output part to the flat pipe conveying part.

Preferably, one end of the output part faces the pressing outlet, and the other end of the output part faces the flat tube conveying part.

Preferably, the press rollers are two press rollers which are arranged oppositely, and are respectively a first press roller and a second press roller, a circle of groove is formed in the circumferential direction of each press roller, the groove of the first press roller is aligned with the groove of the second press roller to form a pressing channel, the input part faces the pressing channel, and the pressing channel is used for the pipe fitting to pass through and flatly press the pipe fitting.

Preferably, the pressing part comprises a first power part, a positioning slider and a pressing plate, wherein a pressing block is arranged at one end of the pressing plate, which faces the rotating part, so as to press the flat pipe on the rotating part, and the pressing plate is further provided with a positioning protrusion; one end of the positioning sliding block is an inclined surface, and the inclined surface is abutted to the positioning bulge; the first power part drives the positioning sliding block to slide, so that the inclined surface drives the pressing plate to move through the positioning protrusion, and the distance between the pressing plate and the rotating part is changed.

Preferably, the method further comprises the following steps: the feeding mechanism is used for feeding materials to the flattening mechanism; the feed mechanism has: the hopper is provided with a hopper outlet, and a blocking mechanism is arranged in the hopper and used for blocking or exposing the hopper outlet; a pipe passage having a passage inlet and a passage outlet, the passage inlet corresponding to the hopper outlet, a flap mechanism disposed between the passage inlet and the passage outlet, the flap mechanism having a first position blocking movement of the pipe toward the passage outlet and a second position allowing movement of the pipe toward the passage outlet; the pushing and supporting mechanism is provided with a pushing and supporting part, and the pushing and supporting part is positioned on one side of the channel inlet and is used for pushing the pipe fitting to the channel outlet; the channel outlet is directed towards the input.

Preferably, a collecting box is further arranged below the flat pipe bending mechanism and used for receiving the bent pipe cut off by the cutting mechanism.

Compared with the prior art, the method has the following beneficial effects: the pipe fitting is flattened in the cooperation of a plurality of mechanisms, and then bends and cut off again, can accomplish work automatically, and machinery cooperation is efficient, improves production efficiency to require lowly to operating personnel, reduced personnel's cost.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic overall structure diagram of the pipe bending machine of the present invention;

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

FIG. 3 is a front view of one embodiment of a loading mechanism in the bending machine for pipe elements of the present invention;

FIG. 4 is a schematic cross-sectional view of one embodiment of a feeding mechanism in the bending machine for pipe elements according to the present invention;

fig. 5 is a perspective view of one embodiment of a feeding mechanism in the pipe bending machine according to the present invention.

FIG. 6 is a schematic diagram of one embodiment of a flattening mechanism in the tube bender of the present invention;

fig. 7 is a partial enlarged view of fig. 6 at B.

Fig. 8 is a schematic perspective view of an embodiment of a flat tube bending mechanism in the tube bending machine according to the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 8 at C;

fig. 10 is a front view of an embodiment of a flat tube bending mechanism in the tube bending machine according to the present invention;

FIG. 11 is an enlarged view of a portion of FIG. 10 at D;

fig. 12 is a left side view of an embodiment of a flat tube bending mechanism in the tube bending machine according to the present invention;

fig. 13 is a rear view of an embodiment of a flat tube bending mechanism in the tube bending machine according to the present invention.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

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 application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The invention discloses a pipe fitting bending mechanism, which comprises a flattening mechanism 2, a flat pipe bending mechanism 4, a cutting mechanism 5 and a bending mechanism, wherein the flattening mechanism 2 is used for flattening a pipe fitting, the flattened pipe fitting is called as a flat pipe, the flat pipe bending mechanism 4 is used for bending the flat pipe, and the cutting mechanism 5 is used for cutting off the bent flat pipe (the bent flat pipe is called as a bent pipe).

In an alternative embodiment, the device further comprises a feeding mechanism for feeding 1 the flattening mechanism, and of course, a pipe conveying mechanism 3 is further arranged between the flattening mechanism and the flat pipe bending pipe.

The above-described respective mechanisms will be described below separately for the convenience of understanding, and finally, the relationship between the respective mechanisms will be described. According to the description of the working process, the sequence of the feeding mechanism 1, the flattening mechanism 2, the pipe conveying mechanism 3, the flat pipe bending mechanism 4 and the cutting mechanism 5 is described, and the process and the corresponding mechanism which a pipe fitting finally becomes a bent pipe are described.

The loading mechanism 1 is explained first.

Referring to fig. 3 to 5, including: a hopper 11 for containing pipes 14 (only one pipe is shown in the figure); the pipe passage is used for allowing the pipe to pass through and enter the next working procedure; push away and support mechanism 13, promote the pipe fitting and remove in the pipe fitting passageway, it is specific:

the hopper 11 is provided with a hopper outlet, and a blocking mechanism is further arranged in the hopper and used for blocking or exposing the hopper outlet. When the outlet of the hopper is shielded, the pipe fittings in the hopper cannot flow out from the outlet of the hopper, and the feeding is stopped; when the outlet of the hopper is exposed, the pipe fittings in the hopper can flow out, namely, the feeding is started. The speed that cooperation stop mechanism two positions of sheltering from and exposing the hopper export removed can guarantee to flow the pipe fitting of fixed quantity when exposing the opening at every turn, and the quantity that needs to flow the pipe fitting is more and more, and it is just longer to expose the open-ended time, and of course, under the general condition, need flow a pipe fitting at every turn. The time to expose the hopper opening is determined by the number of pipes required and the size of the pipes, and in order to ensure the efficiency of the work, only one pipe is generally supplied to flow out at a time.

In an alternative embodiment, the stopping mechanism comprises a sliding block 111, and one end of the sliding block 111 is provided with an inclined surface, which can ensure that when the sliding block obstructs the outlet of the hopper, the pipe in the hopper can slide upwards along the inclined surface and can not be clamped between the sliding block 111 and the hopper. The other end of the slider 111 is connected to a first power unit 112 for moving the slider.

Optionally, the hopper is triangular in vertical cross section, and the blocking mechanism is disposed on one side wall of the hopper.

A pipe passage having a passage inlet and a passage outlet 121, the passage inlet corresponding to the hopper outlet, and a flap mechanism 122 disposed between the passage inlet and the passage outlet, the flap mechanism having a first position in which movement of the pipe towards the passage outlet is blocked and a second position in which movement of the pipe towards the passage outlet is permitted. When the flap mechanism is in the first position, the tube cannot move towards the passageway outlet, requiring the flap mechanism to pass when in the second position, as will be explained below, if the flap mechanism is switched between the first and second positions.

And the pushing and supporting mechanism 13 is provided with a pushing and supporting part, and the pushing and supporting part is positioned on one side of the channel inlet and used for pushing the pipe fitting to the channel outlet. The pushing mechanism pushes the pipe fitting, and then pushes the blocking piece mechanism to change from the first position to the second position, so that the pipe fitting passes through the inlet channel outlet.

Several forms of flap mechanism are described below, the first: the separation blade mechanism is provided with a separation blade body which is rotatably arranged in the pipe fitting channel through a pin shaft; the blocking piece mechanism is also provided with an elastic piece, so that the blocking piece mechanism is elastically restored to the first position from the second position. Optionally, the elastic element is a plate spring arranged between the pin shaft and the baffle body.

And the second method comprises the following steps: the separation blade mechanism is provided with a separation blade body which is an elastic sheet fixedly arranged in the pipe fitting passage.

And the third is that: the baffle structure is provided with a baffle body and a servo motor, for example, the previous pipe fitting is finished in the subsequent station, and the baffle structure is controlled to be changed into a second position by the servo motor; or the servo motor automatically changes the baffle structure into the second position when the pushing mechanism pushes the pipe fitting to the edge of the baffle mechanism.

The above can be used in the present invention, and it should be understood that the purpose of the baffle structure is not to allow the pipe to freely roll into the outlet of the passage, so as to avoid the accumulation of the pipe, so that when the pushing device is required to push the pipe, the position of the baffle mechanism is changed by the force of the pushing device, so as to allow the pipe to pass through.

In an alternative embodiment, the pushing mechanism further has a second power portion (not shown in the figure), the second power portion is connected to the pushing portion through a connecting rod, the pipe is pushed to move towards the passage outlet, and the pipe pushes the blocking sheet mechanism located at the first position to the second position through the pushing portion.

In an alternative embodiment, the tube feeding mechanism of the present invention further comprises a base 15 on which the tube passage is provided.

The following describes the collapsing mechanism 2.

The flattening mechanism is used for flattening the pipe fittings, and the flattening mechanism of the pipe fittings submitted below is the flattening mechanism.

Referring to fig. 6, it includes: the pipe fitting press comprises an input portion 21, a pressing portion 22 and an output portion 23, wherein the pressing portion 22 is arranged between the input portion 21 and the output portion 23, the pressing portion 22 is used for flattening the pipe fitting, the input portion 21 is used for inputting the pipe fitting to the pressing portion 22, and the output portion 23 is used for outputting the pipe fitting flattened by the pressing portion 22.

The pressing portion 22 has a pressing inlet and a pressing outlet, the input portion 21 is directed to the pressing inlet, the pipe is input to the pressing inlet, and the pipe is output from the pressing outlet after the pressing portion 22 crushes the pipe, so the output portion 23 is also directed to the pressing outlet, of course, the output portion 23 may also be used as the input portion 21 of the next working process, for example, the crushed pipe needs to be bent in the next working process, and then the output portion 23 may be used as the input portion 21 of the raw material (crushed pipe) in the bending process.

The press section 22 has, in addition to a press inlet and a press outlet, a press roller which is arranged between the press inlet and the press outlet and which is used directly for flattening the incoming pipe.

In an alternative embodiment, the pressing roller is two pressing rollers which are oppositely arranged, namely a first pressing roller 221 and a second pressing roller 222, a circle of groove is formed in the circumferential direction of each pressing roller, the groove (shown by the number 2211 in fig. 7) of the first pressing roller 221 and the groove (shown by the number 2221 in fig. 7) of the second pressing roller 222 are aligned to form a pressing channel, the input part 21 faces the pressing channel, the pressing channel is used for the pipe to pass through, and the pipe is flattened.

The groove forms a pressing channel for the pipe fitting to enter and flatten, the distance between the pressing wheels is adjusted, the pressing channel distance can be changed, and the thickness of the flattened pipe fitting can be controlled. When the tube is flattened. The pressing channel can fix the pipe fitting, the edge of the pressing channel can limit two sides of the pipe fitting to keep straightness during flattening, and the width of the flattened pipe fitting is consistent.

Optionally, the nip rollers have a plurality of sets, the nips in each set being aligned. As shown in fig. 6 and 7, there are three sets of pressing rollers, and the pressing channels formed by the pressing rollers in each set are aligned, that is, the pressing channel in the first set is aligned with the pressing channels in the second and third sets, and the pipe fittings are sequentially passed through the three sets of pressing rollers, so that the alignment is ensured and the deformation of the pressed pipe fittings is avoided.

Optionally, between the input 21 and the press inlet, a first take-up roller 25 is provided; a second take-up roll (not shown) may also be provided between the outfeed portion 23 and the press outlet. The unpressed pipe is moved toward the press entrance by the rotation of the first receiving roller 225, and the pressed and flattened pipe is moved from the press exit to the output portion 23 by the rotation of the second receiving roller.

The structure and driving manner of the pressing wheel are described below, and optionally, a first gear 223 is coaxially disposed outside the first pressing wheel 221, a second gear 224 is coaxially disposed outside the second pressing wheel 222, the first gear 223 is engaged with the second gear 224, and one of the first gear 223 and the second gear 224 is a driving wheel.

There are many ways of driving the rollers, two types of drive are described below, one being a chain drive and the other being a belt drive, although these are only two alternative embodiments and other types of drives can be used with the present invention.

The chain drives the driving wheel: the driving wheel drives the driven wheel through gear engagement, that is, the first pressing wheel 221 drives the second pressing wheel 222 to rotate, and the first gear 223 and the second gear 224 are in external engagement, so that the rotation directions of the opposite first pressing wheel 221 and the second pressing wheel 222 are opposite.

Of course, in order to directly cooperate with the first gear 223 to complete the driving, a driving gear may be disposed inside or outside the first gear 223, and the driving gear cooperates with the chain to complete the driving, so that even if there are multiple sets of press rollers, the working positions of the press rollers will not be affected by the chain.

The belt drives the driving wheel: and a rotating wheel is coaxially arranged on one side of the driving wheel and is driven by a belt to drive the driving wheel to rotate. The belt drives the first pressing wheel 221 through the rotating wheel, and further drives the second pressing wheel 222 to rotate, so as to complete the pressing of the pipe fitting.

Further, the chain or the belt can also be used as the power of the first receiving roller 225 and the second receiving roller, as shown in fig. 7, a third gear 226 is disposed outside the first receiving roller 225 and engaged with the chain to drive the first receiving roller 225 to move, but if the belt is used, the third gear may be changed into a rotating wheel.

It should be noted that fig. 7 is only used for illustrative purposes and is not intended to limit the actual structure, for example, a belt is shown in the figure, but the present application is not limited to the use of the belt, and the third gear 226 in fig. 7 is only used as an example and may be a third runner, and the structural shape of the third gear or runner may not be limited to the structural shape shown in fig. 7.

Of course, the above is only used as an alternative driving method, for example, the motor is directly used to drive the first pressing wheel 221 and/or the second pressing wheel 222, or the motor drives the first uptake roller and the second uptake roller, which can also be used in the present invention.

The description continues with the pipe transfer mechanism 3.

The tube conveying mechanism is used for conveying flat tubes flattened by the flattening mechanism to the flat tube bending mechanism.

The pipe conveying mechanism comprises a push plate, and power elements such as a hydraulic cylinder or a pneumatic cylinder are arranged behind the push plate and used for controlling the push plate to advance. Furthermore, a detector can be arranged for detecting flat tubes needing to be pushed.

The flat pipe bending mechanism 4 is further explained.

The flat tube bending mechanism is used for bending the flat tube to form a bent tube, and a term of "bending mechanism" may appear in the following description, which is the same as the flat tube bending mechanism.

Referring to fig. 8 to 13, including rotating portion 41, positioning portion 42, fixing portion 43 and compressing portion 44, positioning portion 42 is disposed above rotating portion 41, and has a gap with rotating portion 41, and this gap can allow flat tube to pass through, and simultaneously, positioning portion 42 also restricts flat tube free movement in the height direction, so as to avoid affecting the quality of the product after the pipe is bent by rotation. The positioning portion 42 is disposed on the rotating portion 41, the flat tube passing through the gap is fixed on the positioning portion 42, the positioning portion 42 rotates along with the rotating portion 41, and the flat tube is also driven to rotate along with the rotating portion 41, in order to avoid dislocation of the flat tube in the transferring process, the flat tube is pressed on the rotating portion 41 by the pressing portion 44, or the flat tube is not separated from the fixing portion 43 and can rotate along with the rotating portion 41, of course, the pressing portion 44 is located above the rotating portion 41 and rotates coaxially with the rotating portion 41, and thus, in the whole process of rotating and bending the tube, pressing of the flat tube can be guaranteed.

Through the flat tube rotary elbow mechanism, the flat tube is fixed on the fixed part 43, is pressed by the pressing part 44 and then rotates along with the rotating part 41, the gap between the positioning part 42 and the rotating part 41 is fixed, and the tail part of the flat tube is blocked by the positioning part 42 due to the rotation, so that the whole flat tube bends along with the rotation of the rotating part 41, and finally the elbow is formed.

The specific structure of each of the above components will be described below, and first, the rotating part 41 will be described, and referring to fig. 8 and 9, the rotating part 41 can be optionally fixed on a power shaft, and can be rotated by the power shaft. The driving mode of the power shaft can be various, and the following distances illustrate several types:

first, the power shaft is driven by a pneumatic or hydraulic cylinder. The driving method also needs to be matched with a gear 452 and a rack 453, the gear 452 is fixedly sleeved outside the power shaft 451, one end of the rack 453 is fixedly connected with a pneumatic cylinder or a hydraulic cylinder (reference numeral 454 in fig. 13 brings the pneumatic cylinder or the hydraulic cylinder), and the rack 453 is meshed with the gear 452.

It should be understood that the pneumatic and hydraulic cylinders described above are only alternative forms and that other mechanisms capable of providing linear power may be used in the present application.

Second, the power shaft is driven by a motor. In this way, the output shaft of the motor can be directly connected with the power shaft, and how to connect the output shaft with the power shaft is available to those skilled in the art and is not described in detail.

Next, describing the positioning portion 42, with continued reference to fig. 8 to 11, one end of the positioning portion 42 toward the rotating portion 41 is provided with a roller 421, and the roller 421 and the rotating portion 41 form the above-mentioned gap therebetween. The roller 421 can avoid the indentation of the flat tube caused by the positioning part 42 when the flat tube is bent in a rotating way.

Continuing with the description of the fixing portion 43, referring to fig. 10 to 12, the fixing portion 43 may also be in various forms, for example, the fixing portion 43 is a tongue piece disposed on the rotation shaft, and the flat tube is sleeved on the tongue piece after passing through the gap. Of course, other forms are also possible, such as the fixing portion 43 having an engaging structure, such as a splint, a tiger's mouth clip, or the like. It is to be understood that the above are merely illustrative of several possible configurations and are not intended to limit the present application.

Explaining the pressing part 44 again, the pressing part 44 includes a first power part 442, a positioning slider 441, and a pressing plate 443, wherein a pressing block 4431 is disposed at one end of the pressing plate 443 facing the rotating part 41 to press the flat tube on the rotating part 41, and the pressing plate 443 further has a positioning protrusion; one end of the positioning sliding block 441 is an inclined surface, and the inclined surface is abutted to the positioning protrusion; the first power portion 442 drives the positioning slider 441 to slide, so that the inclined surface drives the pressing plate 443 to move through the positioning protrusion, thereby changing the distance between the pressing plate 443 and the rotating portion 41.

Optionally, the pressing portion 44 may further include an elastic structure 444, and the positioning slider 441 and the pressing plate 443 may be moved together to change the distance between the pressing plate 443 and the rotating portion 41, for example, when the positioning slider 441 slides in the first direction, the pressing plate 443 is pressed downward by the inclined surface, and when the positioning slider 441 slides in the second direction, the pressing plate 443 may be pulled up by the elastic structure 444. The resilient structure may be a spring.

As shown in fig. 12, the positioning slider 441 slides rightward, which moves the pressing plate 443 downward, the positioning slider 441 slides leftward, and the elastic structure moves the pressing plate upward.

The first power unit 442 includes any one of a pneumatic cylinder, an electric motor, and a hydraulic cylinder, and fig. 12 shows the pneumatic cylinder or the hydraulic cylinder.

In order to improve the efficiency of the bending, a pipe feeding portion may be provided to feed the flat pipe to the fixing portion 43 through the gap. The pipe conveying part faces to the gap and conveys the flat pipe into the gap in a pushing mode. Of course, this is only an alternative and is not intended to limit the present application. It will be appreciated that the delivery tube portion and the aforementioned tube transfer mechanism function similarly and may be used alternatively or in combination.

Optionally, a collecting box is further arranged below the flat pipe bending mechanism and used for receiving the bent pipe cut off by the cutting mechanism.

Finally, the cutting mechanism 5 is described, which has a cutter, which may be an electric saw or the like, for cutting the bent pipe. And the cutting mechanism is provided with a displacement device for driving the cutting mechanism, the displacement device can be realized by a sliding base, and a mechanical arm can be directly used for driving a cutter to cut off the bent pipe at a specified position.

The relationship between the above mechanisms is explained below.

The channel outlet of the feeding mechanism faces the input part of the flattening mechanism, and it should be understood that the channel outlet facing the input part can be arranged in various ways, and is not limited to be directly opposite to the channel outlet, as long as the pipe fitting can enter the input part from the channel outlet. Of course, a transport mechanism may be provided to transport the pipe exclusively from the feed mechanism to the input.

The output part of the flattening mechanism faces the pipe bending mechanism, so that the flat pipe can enter the pipe bending mechanism, and of course, the orientation of the output part can be adjusted according to the arrangement mode of the pipe conveying part and the pipe conveying mechanism, and the output part faces the pipe conveying part or the pipe conveying mechanism. Of course, the same orientation as used herein means that the flat tubes can be fed into the tube feeding portion or the tube conveying mechanism.

The feeding mechanism, the flattening mechanism, the pipe conveying mechanism, the flat pipe bending mechanism and the cutting mechanism may be arranged on the base 6, components such as a power supply and the like are arranged in the base 6 to supply power to each mechanism, and of course, functional modules such as a control system, an analysis system and the like may also be arranged in the base 6. Of course, a master control panel can be further disposed on the base 6 for inputting control signals, for example, the basic startup, shutdown and pause can be controlled by the master control panel; specific parameters such as bending angle can also be set through the master control panel.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A pipe bender, comprising:

the device comprises a flattening mechanism, a flat pipe bending mechanism and a cutting mechanism; wherein,

the flattening mechanism is provided with an input part for the pipe fitting to enter, a pressing part for flattening the pipe fitting and an output part for outputting the flattened pipe fitting;

the flat tube bending mechanism is provided with a flat tube conveying part and a rotary bent tube part, the flat tube conveying part receives the flat tube and sends the flat tube into the rotary bent tube part, and the rotary bent tube part bends the flat tube into a bent tube;

the cutting mechanism is positioned on one side of the flat pipe bending mechanism and used for cutting off the bent pipe.

2. Pipe bender according to claim 1,

the press section is disposed between the input section and the output section, and has a press roller, a press inlet, and a press outlet; the compression roller is arranged between the pressing inlet and the pressing outlet and is used for flattening the pipe fitting;

the input part faces the pressing inlet and is used for feeding the pipe fitting into the pressing part;

the output part faces to the pressing outlet and is used for outputting the flattened pipe fitting.

3. Pipe bender according to claim 1,

the rotating elbow part includes:

a rotating part;

the positioning part is positioned above the rotating part, and a gap for the flat pipe to pass through is formed between the positioning part and the rotating part;

the fixing part is arranged on the rotating part and used for fixing the flat pipe penetrating through the gap;

and the pressing part is positioned above the rotating part, coaxially rotates with the rotating part and is used for pressing the flat pipe on the rotating part.

4. Pipe bender according to claim 1,

and a pipe conveying mechanism is also arranged between the flattening mechanism and the flat pipe bent pipe and is used for conveying the flat pipe output by the output part to the flat pipe conveying part.

5. Pipe bender according to claim 2,

one end of the output part faces the pressing outlet, and the other end of the output part faces the flat pipe conveying part.

6. Pipe bender according to claim 2,

the pressing roller is two pressing rollers which are oppositely arranged, and is respectively a first pressing roller and a second pressing roller, a circle of groove is formed in the circumferential direction of each pressing roller, the grooves of the first pressing rollers and the grooves of the second pressing rollers are aligned to form a pressing channel, the input part faces the pressing channel, the pressing channel is used for the pipe fitting to pass through, and the pipe fitting is flattened.

7. Pipe bender according to claim 3,

the pressing part comprises a first power part, a positioning slide block and a pressing plate, wherein,

a pressing block is arranged at one end, facing the rotating part, of the pressing plate so as to press the flat pipe on the rotating part, and a positioning bulge is further arranged on the pressing plate;

one end of the positioning sliding block is an inclined surface, and the inclined surface is abutted to the positioning bulge;

the first power part drives the positioning sliding block to slide, so that the inclined surface drives the pressing plate to move through the positioning protrusion, and the distance between the pressing plate and the rotating part is changed.

8. Pipe bender according to any of the claims 1-7, characterized by further comprising: the feeding mechanism is used for feeding materials to the flattening mechanism; the feed mechanism has:

the hopper is provided with a hopper outlet, and a blocking mechanism is arranged in the hopper and used for blocking or exposing the hopper outlet;

a pipe passage having a passage inlet and a passage outlet, the passage inlet corresponding to the hopper outlet, a flap mechanism disposed between the passage inlet and the passage outlet, the flap mechanism having a first position blocking movement of the pipe toward the passage outlet and a second position allowing movement of the pipe toward the passage outlet;

the pushing and supporting mechanism is provided with a pushing and supporting part, and the pushing and supporting part is positioned on one side of the channel inlet and is used for pushing the pipe fitting to the channel outlet;

the channel outlet is directed towards the input.

9. Pipe bender according to any of the claims 1-7,

and a collecting box is further arranged below the flat pipe bending mechanism and used for receiving the bent pipe cut off by the cutting mechanism.