Oil pipe cutting machine

Abstract

The invention relates to the technical field of oil pipe cutting, in particular to an oil pipe cutting machine which comprises a pipe cutting table, a cutting mechanism and a material conveying supporting channel. A dust suction box is installed on the outer wall of the pipe cutting table, a dust suction pipe is installed on the outer wall of one side of the dust suction box, the terminal end of the dust suction pipe is installed between the conveying supporting channels, an air outlet pipe is installed on the outer wall of the other side of the dust suction box, and 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 material conveying supporting channel, a swing dust collection plate is installed on the outer wall of the side, close to the cutting mechanism, of the negative pressure block, through a sealing structure, cuttings cannot enter the position between the oil pipe and the material conveying supporting channel, a dust collection component is arranged at the pipe cutting position, and a dust blowing component is arranged in the oil pipe; air flow forms circulation, no cuttings are reserved in the oil pipe, a deflectable dust collection part is arranged at the pipe cutting position, dust collection can be conducted on dead corners in a deflectable mode after pipe cutting, and the dust collection effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oil pipe cutting, and in particular to an oil pipe cutting machine. Background Art

[0002] During the production of oil pipes, the formed oil pipes need to be transferred to the pipe cutting equipment, the continuous oil pipes need to be sawed into specified lengths, and then the cut oil pipes need to be connected to components, etc., to make them into usable hydraulic oil pipe finished products.

[0003] The China Patent Network has disclosed a publication number of CN102574224A, which discloses a pipe cutting machine, wherein a cutting plate for mounting the pipe to be cut is formed on the cutting machine body, a mounting groove is formed on the cutting plate so that the pipe to be cut can be mounted in the horizontal direction, ball bearings are arranged at predetermined intervals on the inner surface of the mounting groove, and a pipe mounting frame is formed in a manner that the pipe can rotate in situ in the mounting groove when the pipe is placed in the mounting groove, an articulated shaft is installed on the upper side of the pipe mounting frame, a rotating knife mounting frame that acts as a seesaw is installed on the support portion connected to the articulated shaft, a rotating knife driven by a motor is installed on the front end side of the rotating knife mounting frame, and a piston of a manually operated hydraulic jack is connected to the end on the opposite side where the rotating knife is installed, so that the rotating knife moves up and down, and a pipe auxiliary bottom plate capable of adjusting the up and down height is installed on the side of the pipe mounting frame, so that the rotating knife contacts the pipe mounted on the cutting plate, and the pipe is cut as the rotating knife rotates.

[0004] When the above-mentioned pipe cutting machine is cutting, the debris generated by the cutting is scattered around the cutting area, and the inner and outer walls of the oil pipe are attached with debris. The debris contains metal particles. These debris not only increase the cleaning work of the oil pipe, but also make it easy to wear the outer wall when the oil pipe is moved. In addition, the accumulation of more debris is also easy to affect the transmission of the oil pipe, thereby affecting the related continuous pipe cutting work. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] The present invention is proposed in view of the problem that the above-mentioned debris easily affects the pipe cutting work.

[0007] Therefore, an object of the present invention is to provide an oil pipe cutting machine.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: an oil pipe cutting machine, comprising a pipe cutting platform, a cutting mechanism, and a material feeding support channel, wherein the material feeding support 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 box is installed on the outer wall of the pipe cutting table, a dust pipe is installed on one outer wall of the dust box, a terminal of the dust pipe is installed between the feeding support channels, an air outlet pipe is installed on the other outer wall of the dust box, a spring contact is installed at one end of the air outlet pipe, the axis of the spring contact is consistent with the axis of the feeding support channel, and is in contact and connected 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 support channel, and a swinging dust plate is installed on the outer wall of the negative pressure block on one side close to the cutting mechanism.

[0010] As a preferred solution of the oil pipe cutting machine described in the present invention, the spring contact is connected to the air outlet pipe, and the spring contact can guide the airflow of the air outlet pipe into the internal channel of the oil pipe. The swinging dust suction plate is an L-shaped plate, and both ends of the L-shaped plate are extended to one side of the outer diameter of the feeding support channel.

[0011] As a preferred solution of the oil pipe cutting machine described in the present invention, the inner top wall of the negative pressure block is installed with a hollow column, the connecting channel between the negative pressure block and the swinging dust suction plate is installed with a cover plate through a spring, the inner wall of the feed support channel is installed with a fitting bag, and the inner wall of the feed support channel is installed with a pulley through a slide groove.

[0012] As a preferred solution of the oil pipe cutting machine described in the present invention, the pulley has a certain moving gap on the slide groove, and the pulley is installed with a ratchet mechanism, so that the pulley can rotate when feeding. After the pipe cutting is completed, when the oil pipe is slightly moved back due to the contact pressure of the spring contact, the pulley does not rotate, ensuring that the pulley can move to the other end of the slide groove.

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

[0014] As a preferred solution of the oil pipe cutting machine described in the present invention, a pressing and inflating part is installed in the fixed block of the material feeding support channel, an air injection pipe is installed at the bottom of the pressing and inflating part, and one end of the air injection pipe is connected to the outer wall of the fitting bag.

[0015] As a preferred solution of the oil pipe cutting machine described in the present invention, a connecting plate is installed on the top of the pressing and inflating part, the bottom of the connecting plate is connected to the top of the piston part, a buckle is installed on the bottom of the connecting plate, a slot is opened inside the fixed block of the material feeding support channel, a push plate is installed on the inner wall of the slot, and one end of the push plate extends to one side of the pulley, and an inclined block is installed on the extended end of the push plate.

[0016] As a preferred solution of the oil pipe cutting machine described in the present invention, the fixed block of the feed support channel is equipped with a movable connecting rod, one end of the movable connecting rod is equipped with a push-on and push-off valve through a pipeline, and the push-on and push-off valve is installed on one side of the inner wall of the slide groove of the pulley, the push-on and push-off valve is connected to the negative pressure block through a connecting pipe, the outer wall of the swing dust collection plate is equipped with a pulling spring, the outer wall of the swing dust collection plate is equipped with a sliding shaft, the sliding shaft is connected to the arc groove of the fixed block of the feed support channel, so that the swing dust collection plate can be deflected around the feed support channel, and the end of one group of sliding shafts is movably connected to one end of the movable connecting rod.

[0017] As a preferred solution of the oil pipe cutting machine described in the present invention, the pulling spring applies downward pulling force to the L-shaped plate, and the connecting channel between the swinging dust suction plate and the negative pressure block adopts 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. When the negative pressure block is not under negative pressure, the movable connecting rod is maintained in a negative pressure state.

[0018] Beneficial Effects

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

[0020] 1. Before cutting the pipe, a sealing structure is used to prevent the chips from entering between the oil pipe and the material transport support channel, thus avoiding the wear of the oil pipe caused by the chips when the oil pipe is transporting materials;

[0021] Second, a dust suction component is provided at the pipe cutting position, and a dust blowing component is provided inside the oil pipe. The airflow forms a cycle, so that no chips are retained inside the oil pipe itself, and the oil pipe does not need to be processed separately after pipe cutting;

[0022] 3. A deflectable dust suction component is provided at the pipe cutting position, so that dust can be sucked from most of the area at the incision of the oil pipe during cutting. After deflection, very small debris that may be sucked in the dust suction dead corner on one side of the outer wall of the oil pipe can be sucked, thereby improving the dust suction effect without interfering with the operation of the cutting knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

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

[0025] Figure 2 The present invention is a schematic diagram of a material feeding support channel of an oil pipe cutting machine.

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

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

[0028] Figure 5 for Figure 3 Enlarged view of point A in .

[0029] Figure 6 for Figure 3 Enlarged view of point B in .

[0030] Figure 7 The present invention is a schematic diagram of a swinging dust collecting plate of an oil pipe cutting machine.

[0031] Figure 8 for Figure 7 Enlarged view of point C in the figure.

[0032] Fig. 9 The present invention is a schematic diagram of a movable connecting rod of an oil pipe cutting machine.

[0033] Fig.10 for Figure 2 Enlarged view of point D in .

[0034] Fig.11 The figure is a schematic diagram of a guide arc groove of an oil pipe cutting machine.

[0035] Fig.12 The figure is a schematic diagram of a 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. Dustproof 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 feeding support channel 12. The feeding 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 Figure 1-Figure 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 Figure 6-Figure 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 inside of the valve of the pressing opening and closing valve 42 is connected with the inside of the cavity of the movable connecting rod 41. When the movable connecting rod 41 is under negative pressure, the movable connecting rod 41 is in a contracted state. At this time, the movable connecting rod 41 pulls the swinging dust collecting plate 4 to align the swinging dust collecting plate 4 so that the cutting mechanism 11 does not contact the swinging dust collecting plate 4 when cutting the pipe. When the opening and closing valve 42 is pressed and the movable connecting rod 41 is depressurized, the pulling spring 44 pulls the swinging dust collecting plate 4 downward to deflect it.

[0058] Specifically, the pulling spring 44 applies a downward pulling force to the L-shaped plate. When the movable connecting rod 41 is depressurized, the pulling spring 44 can pull the swinging dust collecting plate 4 to deflect along the sliding shaft 45 and the corresponding guide arc groove 451, and cooperate with the guide member 46 sleeved on the bottom side of the swinging dust collecting plate 4, so that the swinging dust collecting plate 4 can be deflected to a dead angle for dust collection. The connecting channel between the swinging dust collecting plate 4 and the negative pressure block 3 adopts a hose to ensure that the swinging dust collecting plate 4 can be moved. A baffle is installed at the connection between the connecting tube 43 and the negative pressure block 3. When the negative pressure block 3 is not under negative pressure, the movable connecting rod 41 is maintained in a negative pressure state.

[0059] The rest of the structure is the same as that of Example 2.

[0060] Operation process: when the negative pressure block 3 is under negative pressure, the synchronous negative pressure drives the movable link 41 to contract. When the movable link 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 separates from the oil pipe after cutting the pipe, there is a gap at the incision on the oil pipe. Its spring contact 23 pushes the oil pipe, so that the cut oil pipe moves back slightly. At this time, the oil pipe drives the pulley 34 to move, and the pulley 34 moves to contact and press the opening and closing valve 42 and the inclined block 336. Pressing the opening and closing valve 42 causes the movable link 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 corner at the oil pipe cutting location can be dusted by the swing dust suction plate 4, thereby ensuring the removal of chips.

[0061] Working principle: When cutting the pipe, 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 oil pipe moves, the oil pipe drives the pulley 34 to deviate to the moving end of the oil pipe on the slide groove. At this time, the cutting mechanism 11 and the dust suction box 2 work synchronously. At this time, the locking rod 312 presses against the cover plate 32 to lock the channel between 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 311 of the hollow column 31 to move downward, and the movement of the piston 311 drives the connecting plate 332 to move, and the movement of the connecting plate 332 drives The inflatable piece 331 is pressed, and the inflatable piece 331 is pressed to make the fitting bag 33 swell, so that the fitting bag 33 is fitted with the outer wall of the oil pipe, so that there is no gap between the feeding support channel 12 and the outer wall of the oil pipe. At this time, the buckle 333 is embedded in the slot 334, and its locking rod 312 no longer presses against the cover plate 32. The cover plate 32 is naturally opened due to adsorption, so that the swing dust suction plate 4 can perform dust suction work, and at this time the spring contact 23 sprays air, so that the chips entering the oil pipe can be blown off, and then the chips are driven by the circulating airflow to be collected in the dust suction box 2, so that the oil pipe can collect the chips when sawing, and no debris is attached to the When the negative pressure block 3 is under negative pressure, the synchronous negative pressure drives the movable link 41 to contract. When the movable link 41 contracts, it drives the swing dust suction plate 4 to be aligned, 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 after cutting the pipe and separates from the pipe, its spring contact 23 will press the cut pipe against the incision, so that the cut pipe moves back slightly. At this time, the pipe drives the pulley 34 to move, and the pulley 34 moves to contact and press the opening and closing valve 42 and the inclined block 336. The opening and closing valve 42 is pressed to release the pressure of the movable link 41. At this time, the spring 44 is pulled. The swinging dust suction plate 4 can be pulled to deflect, so that the dust suction dead corner at the oil pipe cutting location can be dusted by the swinging dust suction plate 4, ensuring the removal of chips, and the inclined block 336 is pressed to drive the push plate 335 to move, and the push plate 335 pushes the buckle 333, so that the buckle 333 is disengaged from the slot 334, and then the cutting mechanism 11 and the dust suction box 2 are powered off synchronously, and the feeding mechanism feeds the oil pipe for the next pipe cutting process, when the oil pipe touches the pulley 34 again to deflect to 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 bag 33 is restored to be out of contact with the surface of the oil pipe, and the oil pipe cutting work is completed in this cycle.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in 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); A dust box (2) is installed on the outer wall of the pipe cutting table (1), a dust pipe (21) is installed on one side of the outer wall of the dust box (2), and the terminal of the dust pipe (21) is installed between the feeding support channel (12). An air outlet pipe (22) is installed on the other side of the outer wall of the dust box (2), and 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 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).

2. The oil pipe cutting machine according to claim 1, characterized in that: The spring contact (23) is in communication with 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 collecting 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 feeding support channel (12).

3. The oil pipe cutting machine according to claim 2, characterized in that: 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.

4. The oil pipe cutting machine according to claim 3, characterized in that: 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 due to 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.

5. The oil pipe cutting machine according to claim 4, characterized in that: A piston member (311) is installed on the inner wall of the hollow column (31), 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).

6. The oil pipe cutting machine according to claim 5, 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 laminating bag (33).

7. The oil pipe cutting machine according to claim 6, 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 material feeding support channel (12), a push plate (335) is installed on the inner wall of the slot (334), 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).

8. The oil pipe cutting machine according to claim 7, characterized in that: The fixed block of the feed support channel (12) is provided with a movable connecting rod (41), one end of the movable connecting rod (41) is provided with a push-on / off valve (42) via a pipeline, and the push-on / off valve (42) is provided 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) via a connecting pipe (43), and the outer wall of the swing dust collecting plate (4) is provided with a pulling spring (44), and the outer wall of the swing dust collecting plate (4) is provided with a sliding shaft (45), 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 set of sliding shafts (45) is movably connected to one end of the movable connecting rod (41).

9. The oil pipe cutting machine according to claim 8, characterized in that: The pulling spring (44) applies a downward pulling force to the L-shaped plate. The connection channel between the swinging dust collecting plate (4) and the negative pressure block (3) adopts a hose to ensure that the swinging dust collecting plate (4) can be moved. A baffle is installed at the connection between the connecting pipe (43) and the negative pressure block (3). When the negative pressure block (3) is not under negative pressure, the movable connecting rod (41) is maintained in a negative pressure state.

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