An oil pipe cutting machine

Abstract

The present invention relates to the technical field of oil pipe cutting, and in particular to an oil pipe cutting machine, including a cutting table, a cutting mechanism, and a feeding support channel; a dust suction box is installed on the outer wall of the cutting table, a dust suction pipe is installed on one outer wall of the dust suction box, the terminal of the dust suction pipe is installed between the feeding support channels, an air outlet pipe is installed on the other outer wall of the dust suction box, a spring contact is installed at one end of the air outlet pipe, a negative pressure block is installed on one side of the cutting gap of the feeding support channel, and a swing dust suction plate is installed on the outer wall of the negative pressure block close to the cutting mechanism. Through the sealing structure, chips will not enter between the oil pipe and the feeding support channel. A dust suction component is provided at the pipe cutting position, and a dust blowing component is provided inside the oil pipe, and the air flow forms a cycle, so that there are no chips left inside the oil pipe itself. A deflectable dust suction component is provided at the pipe cutting position, which can deflect to suck dust at dead corners after pipe cutting, improving the dust suction effect.

Description

Technical Field

[0001] The present invention relates to the technical field of tubing cutting, and particularly to a tubing cutting machine. Background Art

[0002] During the production of tubing, the formed tubing needs to be transported into a tubing cutting device, the continuously flowing tubing is sawed into specified lengths, and then connecting devices are attached to the cut tubing to make it into a usable finished hydraulic tubing product.

[0003] The Chinese Patent Network discloses a pipe cutting machine with the publication number: CN102574224A. In the cutting machine main body, there is a cutting plate for installing the pipe to be cut. An installation groove is formed on the cutting plate so that the pipe to be cut can be installed horizontally. Ball bearings are arranged at a predetermined interval on the inner surface of the installation groove, and a pipe installation frame is configured in such a way that when the pipe is placed in the installation groove, it can rotate in place in the installation groove. A hinge shaft is installed on the upper side of the pipe installation frame, a support part is connected to the hinge shaft, a rotary knife installation frame that acts as a seesaw is installed, a rotary knife driven by a motor is installed at the front end side of the rotary knife installation frame, and a piston of a manually operated hydraulic jack is connected to the opposite end side of the installed rotary knife, so that the rotary knife moves up and down. A pipe auxiliary bottom plate capable of adjusting the vertical height is installed on the side of the pipe installation frame, so that the rotary knife contacts the pipe installed on the cutting plate, and the pipe is cut as the rotary knife rotates.

[0004] When the above-mentioned pipe cutting machine cuts, the chips generated by the cutting are scattered around the cutting area, and chips will adhere to both the inner and outer walls of the pipe. These chips contain metal particles. These chips not only increase the cleaning work of the pipe, but also make it easy to wear the outer wall of the pipe when the pipe is moved, and the accumulation of a large amount of chips is also likely to affect the transmission of the pipe, thereby affecting the relevant continuous pipe cutting work. Summary of the Invention

[0005] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the problem that the above-mentioned chips are likely to affect the pipe cutting work, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide a tubing cutting machine.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: An oil pipe cutting machine includes a cutting table, a cutting mechanism, and a feeding and supporting channel. The feeding and supporting channel is composed of two groups of hollow pipes, and the gap between the two groups of pipes is the cutting position of the cutting mechanism;

[0009] A dust suction box is installed on the outer wall of the cutting table. A dust suction pipe is installed on one outer wall of the dust suction box. The terminal of the dust suction pipe is installed between the feeding and supporting channels. An air outlet pipe is installed on the other outer wall of the dust suction box. One end of the air outlet pipe is installed with a spring contact head. The axis of the spring contact head is consistent with the axis of the feeding and supporting channel, and is in contact connection with the end of the oil pipe to be cut. A negative pressure block is installed on one side of the cutting gap of the feeding and supporting channel. A swing dust suction plate is installed on the outer wall of the negative pressure block close to the cutting mechanism.

[0010] As a preferred solution of the oil pipe cutting machine of the present invention, wherein: The spring contact head is communicated with the air outlet pipe, and the spring contact head can introduce the air flow of the air outlet pipe into the internal channel of the oil pipe. The swing dust suction plate is an L-shaped plate, and both ends of the L-shaped plate extend to the outer diameter side of the feeding and supporting channel.

[0011] As a preferred solution of the oil pipe cutting machine of the present invention, wherein: A hollow column is installed on the inner top wall of the negative pressure block. A cover plate is installed through a spring in the connection channel between the negative pressure block and the swing dust suction plate. A fitting bladder is installed on the inner wall of the feeding and supporting channel. A pulley is installed on the inner wall of the feeding and supporting channel through a chute.

[0012] As a preferred solution of the oil pipe cutting machine of the present invention, wherein: The pulley has a certain moving gap on the chute, and a ratchet mechanism is installed on the pulley. When feeding, the pulley can rotate. When the oil pipe slightly moves back under the touch pressure of the spring contact head after cutting, the pulley does not rotate, ensuring that the pulley can move to the other end of the chute.

[0013] As a preferred solution of the oil pipe cutting machine of the present invention, wherein: A piston part is installed on the inner wall of the hollow column. The piston rod of the piston part extends to the top of the hollow column. A locking rod is installed at the bottom of the piston part, and the locking rod is located on one side of the cover plate.

[0014] As a preferred solution of the oil pipe cutting machine of the present invention, wherein: A pressing and inflating part is installed in the fixed block of the feeding and supporting channel. A gas injection pipe is installed at the bottom of the pressing and inflating part. One end of the gas injection pipe is connected to the outer wall of the fitting bladder.

[0015] As a preferred embodiment of the tubing cutting machine of the present invention, the following is provided: A connecting plate is installed at the top of the pressing and inflating member. The bottom of the connecting plate is connected to the top end of the piston member. A buckle is installed at the bottom of the connecting plate. A card slot is provided inside the fixing block of the material conveying support channel. A push plate is installed on the inner wall of the card slot, and one end of the push plate extends to the side of the pulley. An inclined block is installed at the extended end of the push plate.

[0016] As a preferred embodiment of the tubing cutting machine of the present invention, the following is provided: The fixing block of the material conveying support channel is provided with a movable connecting rod. One end of the movable connecting rod is installed with a pressing opening and closing valve through a pipeline, and the pressing opening and closing valve is installed on one side of the inner wall of the chute of the pulley. The pressing opening and closing valve is connected to the negative pressure block through a connecting pipe. A pulling spring is installed on the outer wall of the swinging dust suction plate. A sliding shaft is installed on the outer wall of the swinging dust suction plate. The sliding shaft is connected to the arc-shaped groove of the fixing block of the material conveying support channel, enabling the swinging dust suction plate to deflect around the material conveying support channel. One end of one group of sliding shafts is movably connected to one end of the movable connecting rod.

[0017] As a preferred embodiment of the tubing cutting machine of the present invention, the following is provided: The pulling spring applies a downward pulling force to the L-shaped plate. The connecting channel between the swinging dust suction plate and the negative pressure block uses a hose to ensure that the swinging dust suction plate can be moved. A baffle is installed at the connection between the connecting pipe and the negative pressure block to maintain the negative pressure state of the movable connecting rod when the negative pressure block is not in a negative pressure state.

[0018] Beneficial Effects

[0019] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art:

[0020] First, before cutting the pipe, a sealing structure is adopted to prevent chips from entering between the pipe and the material conveying support channel, avoiding wear on the pipe caused by the retention of chips during pipe material conveying.

[0021] Second, a dust suction component is provided at the pipe cutting position, and a dust blowing component is provided inside the pipe. The airflow forms a cycle, so that there are no chips left inside the pipe itself, and there is no need to separately process the pipe after cutting.

[0022] Third, a deflectable dust suction component is provided at the pipe cutting position to suck dust from most areas of the pipe cut during cutting. After deflection, it can suck a very small amount of debris that may be adsorbed in the dust suction dead corner on one side of the pipe outer wall, improving the dust suction effect without interfering with the operation of the cutting tool. Description of the Drawings

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is an overall schematic diagram of an oil pipe cutting machine.

[0025] Figure 2 It is a schematic diagram of the feeding support channel of an oil pipe cutting machine.

[0026] Figure 3 It is a schematic diagram of the negative pressure block of an oil pipe cutting machine.

[0027] Figure 4 It is a schematic diagram of the pressing and inflating part of an oil pipe cutting machine.

[0028] Figure 5 It is Figure 3 The enlarged view at position A in

[0029] Figure 6 It is Figure 3 The enlarged view at position B in

[0030] Figure 7 It is a schematic diagram of the swinging dust suction plate of an oil pipe cutting machine.

[0031] Figure 8 It is Figure 7 The enlarged view at position C in

[0032] Figure 9 It is a schematic diagram of the movable connecting rod of an oil pipe cutting machine.

[0033] Figure 10 It is Figure 2 The enlarged view at position D in

[0034] Figure 11 It is a schematic diagram of the guiding arc groove of an oil pipe cutting machine.

[0035] Figure 12 It is a schematic diagram of the ratchet mechanism of an oil pipe cutting machine.

[0036] 1. Pipe cutting table; 11. Cutting mechanism; 12. Feeding support channel; 2. Dust box; 21. Dust pipe; 22. Air outlet pipe; 23. Spring contact; 3. Negative pressure block; 31. Hollow column; 311. Piston member; 312. Locking rod; 32. Cover plate; 33. Fitting bag; 331. Pressing inflatable member; 3311. Air injection pipe; 332. Connecting plate; 333. Buckle; 334. Slot; 335. Push plate; 336. Oblique block; 34. Pulley; 341. Dust plate; 342. Contact and pressure protrusion; 4. Swinging dust plate; 41. Movable connecting rod; 42. Pressing opening and closing valve; 43. Connecting pipe; 44. Pull spring; 45. Sliding shaft; 451. Guide arc groove; 46. Guide member; 5. Ratchet teeth; 51. Spring member; 52. Resistance block. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0040] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0041] Example 1

[0042] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides an oil pipe cutting machine, including a pipe cutting platform 1, a cutting mechanism 11, and a feed support channel 12. The feed support channel 12 is composed of two groups of hollow tubes. The gap between the two groups of tubes is the cutting position of the cutting mechanism 11. The cutting mechanism 11 and the dust collection box 2 start and stop synchronously.

[0043] Specifically, a dust box 2 is installed on the outer wall of the pipe cutting table 1, a dust pipe 21 is installed on the outer wall of one side of the dust box 2, the terminal of the dust pipe 21 is installed between the feeding support channel 12, an air outlet pipe 22 is installed on the outer wall of the other side of the dust box 2, a spring contact 23 is installed at one end of the air outlet pipe 22, the axis of the spring contact 23 is consistent with the axis of the feeding support channel 12, and is in contact and connected with the end of the oil pipe to be cut, a negative pressure block 3 is installed on one side of the cutting gap of the feeding support channel 12, and a swinging dust plate 4 is installed on the outer wall of the negative pressure block 3 close to the cutting mechanism 11.

[0044] Furthermore, the spring contact 23 is connected to the air outlet pipe 22, and the spring contact 23 can guide the airflow of the air outlet pipe 22 into the internal channel of the oil pipe. The swinging dust suction plate 4 is an L-shaped plate, and both ends of the L-shaped plate are extended to one side of the outer diameter of the feed support channel 12. When the L-shaped plate is straightened, the cutting mechanism 11 can be prevented from touching the swinging dust suction plate 4. During dust suction, the L-shaped plate can complete dust suction for most areas of the feed support channel 12. A very small number of chips may adhere to the dust suction dead corners of the outer wall of the oil pipe. When the cutting knife of the cutting mechanism 11 is retracted after the pipe cutting is completed, the swinging dust suction plate 4 is deflected in time to vacuum the dead corners.

[0045] Operation process: the feeding mechanism moves the oil pipe in the feeding support channel 12 until the oil pipe contacts the spring contact 23 and slightly presses the spring contact 23. When the dust box 2 is working, the air outlet pipe 22 of the dust box 2 sprays air to blow away the chips on the inner wall of the oil pipe. The dust suction airflow guides the chips to the swing dust suction plate 4, thereby collecting the chips and reducing the interference of the chips on the pipe cutting work. At this time, the locking rod 312 no longer presses against the cover plate 32, and the cover plate 32 opens naturally due to adsorption, so that the swing dust suction plate 4 can perform dust suction work. After the swing dust suction plate 4 completes the tilting dust suction and the cutting mechanism 11 returns to its position, the cutting The cutting mechanism 11 and the dust collection box 2 are powered off synchronously. At this time, the cover plate 32 is restored by the spring, and then the feeding mechanism feeds the oil pipe, so that the oil pipe moves in the feeding support channel 12, and its pulley 34 is also moved close to the other end of the slide groove. When the inclined block 336 is no longer pressed at this time, its push plate 335 is restored and no longer conflicts with the buckle 333, so that the buckle 333 can be restored upward. At this time, the piston part 311 also moves the locking rod 312 back to the side of the cover plate 32, so that the cover plate 32 is locked again. This cycle allows the fitting capsule 33 to wrap around the outer wall of the oil pipe before cutting, and the fitting capsule 33 is restored after cutting.

[0046] Example 2

[0047] Reference Figures 1-11, which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: a hollow column 31 is installed on the inner top wall of the negative pressure block 3, a cover plate 32 is installed on the connecting channel between the negative pressure block 3 and the swing dust suction plate 4 through a spring, two groups of fitting capsules 33 are installed on the inner wall of the feeding support channel 12, and the fitting capsules 33 are all installed on the end of the hollow column 31 located at the cutting position, a pulley 34 is installed on the inner wall of the feeding support channel 12 through a slide groove, and a dustproof plate 341 is installed on one side of the pulley 34. The dustproof plate 341 can prevent the slide groove from being exposed inside the feeding support channel 12, thereby preventing debris from entering the slide groove, and a contact and pressure protrusion 342 is installed on the outer wall on the other side of the dustproof plate 341. The convex edge of the contact and pressure protrusion 342 is located on one side of the pressing opening and closing valve 42 and the inclined block 336, so that when the pulley 34 moves toward the cutting end, its contact and pressure protrusion 342 can contact the pressing opening and closing valve 42 and the inclined block 336.

[0048] Specifically, the pulley 34 has a certain movement gap on the slide groove, and the pulley 34 is equipped with a ratchet mechanism, so that the pulley 34 can rotate when feeding. After the pipe cutting is completed, when the oil pipe is slightly moved back by the contact pressure of the spring contact 23, the pulley 34 does not rotate. At this time, the return movement of the oil pipe can drive the pulley 34 to move as a whole, so that the movement of the pulley 34 can contact and press the opening and closing valve 42 and the inclined block 336;

[0049] The ratchet mechanism includes a ratchet tooth 5 arranged at the end of the pulley shaft, a spring member 51 arranged on one side of the ratchet tooth 5, and a resistance block 52 is installed at one end of the spring member 51. The spring member 51 presses the resistance block 52 to keep it in contact with the ratchet tooth 5, so that the ratchet tooth 5 can only rotate in one direction, thereby enabling the pulley 34 to achieve the following effect: when the oil pipe is conveying materials, the pulley 34 can rotate normally, and when the oil pipe moves back, due to the ratchet mechanism, the return of the oil pipe can drive the pulley 34 to move rather than rotate.

[0050] Furthermore, a piston member 311 is installed on the inner wall of the hollow column 31, and the piston rod of the piston member 311 extends to the top of the hollow column 31. A locking rod 312 is installed at the bottom of the piston member 311. The locking rod 312 is located on one side of the cover plate 32. The locking rod 312 presses against the cover plate 32, so that the negative pressure block 3 forms a negative pressure and approaches until the piston member 311 moves downward to cancel the locking of the cover plate 32. After the cover plate 32 is opened, the dust suction plate can start to suck debris.

[0051] Furthermore, a pressing and inflating piece 331 is installed in the fixed block of the material conveying support channel 12, and an air injection pipe 3311 is installed at the bottom of the pressing and inflating piece 331. One end of the air injection pipe 3311 is connected to the outer wall of the fitting bag 33. When the pressing and inflating piece 331 is pressurized, the pressing and inflating piece 331 can inject gas into the fitting bag 33 through the air injection pipe 3311, so that the fitting bag 33 bulges and fits the outer wall of the oil pipe.

[0052] The cam 333 is pressed against the top of the locking cam 334 to release the locking cam 333. The cam 333 is pressed against the locking cam 334 to release the locking cam 333.

[0053] The rest of the structure is the same as that of Example 1.

[0054] Operation process: when the pipe cutting action starts, the pump body and the cutting mechanism 11 of the dust box 2 start working. At this time, the negative pressure block 3 gradually generates negative pressure due to the operation of the pump body of the dust box 2. The negative pressure drives the piston member 311 of the hollow column 31 to move downward. The movement of the piston member 311 drives the connecting plate 332 to move. The movement of the connecting plate 332 drives the pressing and inflating member 331. The pressing and inflating member 331 is pressurized to make the fitting bag 33 swell, so that the fitting bag 33 fits with the outer wall of the oil pipe, so that there is no gap between the material feeding support channel 12 and the outer wall of the oil pipe. At this time, the buckle 333 is embedded in the card slot 334, so that the bulging of the fitting bag 33 is maintained.

[0055] Example 3

[0056] Reference Figures 6-11 This is the third embodiment of the present invention, which is different from the above embodiments in that: the fixed block of the feed support channel 12 is installed with a movable connecting rod 41, one end of the movable connecting rod 41 is installed with a push-on and shut-off valve 42 through a pipeline, and the push-on and shut-off valve 42 is installed on one side of the inner wall of the slide groove of the pulley 34, and the push-on and shut-off valve 42 is connected to the negative pressure block 3 through a connecting pipe 43, and a pulling spring 44 is installed on the outer wall of the swing dust collecting plate 4, and a sliding shaft 45 is installed on the outer wall of the swing dust collecting plate 4, and the sliding shaft 45 is connected to the arc groove of the fixed block of the feed support channel 12, so that the swing dust collecting plate 4 can be deflected around the feed support channel 12, and the end of one group of sliding shafts 45 is movably connected to one end of the movable connecting rod 41, and a guide member 46 is sleeved on one side of the bottom of the swing dust collecting plate 4, which is used to tilt and guide the swing dust collecting plate 4 to the dead angle of the original dust collecting;

[0057] The interior of the valve of the press-and-open valve 42 is in communication with the cavity of the movable connecting rod 41. When there is negative pressure in the movable connecting rod 41, the movable connecting rod 41 is in a contracted state. At this time, the movable connecting rod 41 pulls the swing dust suction plate 4, making the swing dust suction plate 4 straighten, so that the cutting mechanism 11 does not contact the swing dust suction plate 4 when cutting the pipe. When pressing the press-and-open valve 42, after the movable connecting rod 41 is depressurized, the pulling spring 44 it drives pulls the swing dust suction plate 4 downward for deflection.

[0058] Specifically, the pulling spring 44 exerts a downward pulling force on the L-shaped plate. When the movable connecting rod 41 is depressurized, the pulling spring 44 can pull the swing dust suction plate 4 to deflect along the sliding shaft 45 and the correspondingly opened guiding arc groove 451, and cooperate with the guiding member 46 sleeved on one side of the bottom of the swing dust suction plate 4, so that the swing dust suction plate 4 can deflect to the dead corner for dust suction. The connection channel between the swing dust suction plate 4 and the negative pressure block 3 uses a hose to ensure that the swing dust suction plate 4 can be moved. A baffle is installed at the connection between the connecting pipe 43 and the negative pressure block 3. When there is no negative pressure in the negative pressure block 3, the movable connecting rod 41 is maintained in a negative pressure state.

[0059] All other structures are the same as those in Embodiment 2.

[0060] Operation process: When there is negative pressure in the negative pressure block 3, the synchronous negative pressure drives the movable connecting rod 41 to contract. When the movable connecting rod 41 contracts, it drives the swing dust suction plate 4 to straighten, so that the cutting knife of the cutting mechanism 11 does not touch the swing dust suction plate 4. When the cutting mechanism 11 moves back after cutting the pipe and disengages from the oil pipe, there is a gap at the upper cut of the oil pipe. The spring contact 23 pushes the oil pipe, making the cut oil pipe move back slightly. At this time, the oil pipe drives the pulley 34 to move, and the pulley 34 moves to press the press-and-open valve 42 and the inclined block 336. The press-and-open valve 42 makes the movable connecting rod 41 depressurized. At this time, the pulling spring 44 can pull the swing dust suction plate 4 to deflect, so that the dust suction dead corner existing at the oil pipe cutting part can be sucked by the swing dust suction plate 4, ensuring the removal of chips.

[0061] Working principle: When cutting the pipe, the feeding mechanism moves the oil pipe within the feeding support channel 12 until the oil pipe contacts the spring contact 23 and slightly presses the spring contact 23. When the oil pipe moves, the oil pipe drives the pulley 34 to move towards the moving end of the oil pipe on the chute. At this time, the cutting mechanism 11 and the dust suction box 2 work synchronously. At this time, the locking rod 312 abuts against the cover plate 32 to lock the channels of the negative pressure block 3 and the swing dust suction plate 4, so that the negative pressure block 3 gradually generates negative pressure due to the operation of the pump body of the dust suction box 2. The negative pressure drives the piston part 311 of the hollow column 31 to move downward. The movement of the piston part 311 drives the connecting plate 332 to move. The movement of the connecting plate 332 drives the pressing inflation part 331. When the pressing inflation part 331 is pressed, the fitting bladder 33 bulges, so that the fitting bladder 33 fits against the outer wall of the oil pipe, making there no gap between the feeding support channel 12 and the outer wall of the oil pipe. At this time, the buckle 333 is inserted into the card slot 334, and its locking rod 312 no longer abuts against the cover plate 32. The cover plate 32 opens naturally due to adsorption, so that the swing dust suction plate 4 can perform dust suction work. At this time, the spring contact 23 jets air, so that the chips entering the oil pipe can be blown off. Then the chips are driven by the circulating air flow and collected in the dust suction box 2. Thus, when the oil pipe is sawed, the chips are collected, and no debris adheres to the oil pipe, avoiding abrasion of the oil pipe by the debris. And when the negative pressure block 3 is under negative pressure, the negative pressure synchronously drives the movable connecting rod 41 to contract. When the movable connecting rod 41 contracts, it drives the swing dust suction plate 4 to be straightened, so that the cutting knife of the cutting mechanism 11 will not touch the swing dust suction plate 4. When the cutting mechanism 11 moves back and disengages from the oil pipe after cutting the pipe, its spring contact 23 abuts the cut oil pipe against the cut, so that the cut oil pipe moves back slightly. At this time, the oil pipe drives the pulley 34 to move. The movement of the pulley 34 presses the pressing opening and closing valve 42 and the inclined block 336. The pressing opening and closing valve 42 causes the movable connecting rod 41 to release pressure. At this time, pulling the spring 44 can pull the swing dust suction plate 4 to deflect, so that the dust suction dead angle existing at the cutting part of the oil pipe can be dusted by the swing dust suction plate 4, ensuring the removal of chips. The inclined block 336 is pressed to drive the push plate 335 to move. The push plate 335 pushes the buckle 333, so that the buckle 333 disengages from the card slot 334. Then the cutting mechanism 11 and the dust suction box 2 are powered off synchronously. When the feeding mechanism feeds the oil pipe for the next pipe cutting process, when the oil pipe touches the pulley 34 again and moves towards the moving end of the oil pipe, the restoration of the push plate 335 causes the buckle 333 to be restored, and then the fitting bladder 33 is restored and does not contact the surface of the oil pipe. In this way, the cutting work of the oil pipe is completed in a cycle.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A tubing cutting machine, characterized in that: include, A pipe cutting platform (1), a cutting mechanism (11), and a material feeding support channel (12), wherein the material feeding support channel (12) is composed of two groups of hollow pipes, and the gap between the two groups of hollow pipes is the cutting position of the cutting mechanism (11); The outer wall of the pipe cutting platform (1) is installed with a dust suction box (2), one side outer wall of the dust suction box (2) is installed with a dust suction pipe (21), the terminal end of the dust suction pipe (21) is installed between the feeding support channel (12), the other side outer wall of the dust suction box (2) is installed with an air outlet pipe (22), one end of the air outlet pipe (22) is installed with a spring contact (23), the axis of the spring contact (23) is consistent with the axis of the feeding support channel (12), and is in contact with the end of the oil pipe to be cut, a negative pressure block (3) is installed on one side of the cutting gap of the feeding support channel (12), and a swinging dust suction plate (4) is installed on the outer wall of one side of the negative pressure block (3) close to the cutting mechanism (11); The spring contact (23) is connected to the air outlet pipe (22), and the spring contact (23) can guide the airflow of the air outlet pipe (22) into the internal channel of the oil pipe. The swing dust suction plate (4) is an L-shaped plate, and both ends of the L-shaped plate are extended to one side of the outer diameter of the material conveying support channel (12). When the oil pipe is cut, the oil pipe moves in the material conveying support channel (12) until the oil pipe contacts the spring contact (23) and slightly presses the spring contact (23). The fixed block of the feed support channel (12) is equipped with a movable connecting rod (41), one end of the movable connecting rod (41) is equipped with a push-on / off valve (42) through a pipeline, and the push-on / off valve (42) is installed on one side of the inner wall of the slide groove of the pulley (34), and the push-on / off valve (42) is connected to the negative pressure block (3) through a connecting pipe (43). The outer wall of the swing dust collecting plate (4) is equipped with a pulling spring (44), and the outer wall of the swing dust collecting plate (4) is equipped with a sliding shaft (45). The sliding shaft (45) is connected to the arc groove of the fixed block of the feed support channel (12), so that the swing dust collecting plate (4) can be deflected around the feed support channel (12), and one set of ends of the sliding shaft (45) is movably connected to one end of the movable connecting rod (41); The inner top wall of the negative pressure block (3) is installed with a hollow column (31), the connection channel between the negative pressure block (3) and the swing dust suction plate (4) is installed with a cover plate (32) via a spring, the inner wall of the feed support channel (12) is installed with a fitting bag (33), and the inner wall of the feed support channel (12) is installed with a pulley (34) via a slide groove; The pulling spring (44) applies a downward pulling force to the L-shaped plate, and the connecting channel between the swing dust suction plate (4) and the negative pressure block (3) adopts a hose to ensure that the swing dust suction plate (4) can be moved. A baffle is installed at the connection between the connecting pipe (43) and the negative pressure block (3), and when the negative pressure block (3) is not negatively pressurized, the movable connecting rod (41) is maintained in a negative pressure state; The pulley (34) has a certain moving clearance on the slide groove, and the pulley (34) is installed with a ratchet mechanism, so that the pulley (34) can rotate when feeding. After the pipe cutting is completed, when the oil pipe is slightly moved back by the contact pressure of the spring contact (23), the pulley (34) does not rotate, ensuring that the pulley (34) can move to the other end of the slide groove; A piston member (311) is installed on the inner wall of the hollow column (31), and a piston rod of the piston member (311) extends to the top of the hollow column (31). A locking rod (312) is installed on the bottom of the piston member (311), and the locking rod (312) is located on one side of the cover plate (32).

2. The oil pipe cutting machine according to claim 1, characterized in that: A pressing and inflating member (331) is installed in the fixed block of the material conveying support channel (12), and an air injection pipe (3311) is installed at the bottom of the pressing and inflating member (331), and one end of the air injection pipe (3311) is connected to the outer wall of the fitting bag (33).

3. The oil pipe cutting machine according to claim 2, characterized in that: A connecting plate (332) is installed on the top of the pressing and inflating member (331), the bottom of the connecting plate (332) is connected to the top of the piston member (311), a buckle (333) is installed on the bottom of the connecting plate (332), a slot (334) is provided inside the fixed block of the feeding support channel (12), a push plate (335) is installed on the inner wall of the slot (334), and one end of the push plate (335) extends to one side of the pulley (34), and an inclined block (336) is installed on the extended end of the push plate (335).

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