A quantitative cutting equipment for PE pipe production

Abstract

The present invention relates to the field of laser cutting equipment, and discloses a quantitative cutting equipment for PE pipe production, comprising a base and a laser cutting machine arranged at one end of the top of the base, a fixing frame is arranged at the top of the base, a pipe conveying mechanism is arranged at one end of the fixing frame, and the pipe conveying mechanism comprises a pair of conveying rollers arranged at the inner side of one end of the fixing frame away from the laser cutting machine, a pipe conveying belt is arranged on the two conveying rollers, and one end of one of the conveying rollers extends to the outside of the fixing frame and is provided with a first gear. The quantitative cutting equipment for PE pipe production can not only facilitate the conveying of the pipe, but also fix the two ends of the pipe through the cooperation of the pipe conveying mechanism, the first positioning component, and the second positioning component, so as to facilitate the cutting of the laser cutting machine, prevent radial runout at the moment of cutting, and ensure a relatively smooth incision.

Description

Technical Field

[0001] The invention relates to the field of laser cutting equipment, and in particular to quantitative cutting equipment for PE pipe production. Background Art

[0002] Laser cutting device is a device that uses high-power density laser beam to cut materials. Its working principle is to use the laser beam emitted by the laser, which is focused into a high-power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach the melting point or boiling point. At the same time, the high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, the material is eventually cut, thereby achieving the purpose of cutting. Laser cutting device has the advantages of high precision, fast cutting, wide range of materials, and good incision quality.

[0003] At present, PE pipes are often produced in long lengths and need to be cut into short sections according to demand. In the prior art, PE pipes are cut after production by a laser cutting device, which mainly includes a laser cutting machine, a pipe positioning mechanism, a frame, an electrical system, etc. However, in the prior art, only one end of the pipe is fixed when cutting the pipe. When cutting, the pipe tends to jump radially at the moment of cutting, resulting in an uneven incision, affecting the smooth quality of the incision. Generally, it needs to be polished separately, affecting work efficiency. In addition, the existing laser pipe cutting device needs to disassemble the pipe after cutting before fixing the new pipe to continue cutting. The equipment is often in a stagnant state during the disassembly and assembly of the pipe, resulting in poor production continuity and affecting efficiency.

[0004] Therefore, it is necessary to propose a PE pipe production quantitative cutting equipment to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a quantitative cutting device for PE pipe production, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A quantitative cutting device for PE pipe production, comprising a base and a laser cutting machine arranged at one end of the top of the base, a fixed frame is arranged at the top of the base, a pipe conveying mechanism is arranged at one end of the fixed frame, the pipe conveying mechanism comprises a pair of conveying rollers arranged at the inner side of one end of the fixed frame away from the laser cutting machine, two conveying rollers are arranged with pipe conveyor belts, one end of one of the conveying rollers extends to the outside of the fixed frame and is provided with a first gear, a pair of synchronous wheels are rotatably connected at the corresponding part of the outer side of the fixed frame and the first gear, synchronous belts are arranged at the outer sides of the two synchronous wheels, first gear teeth intermittently meshed with the first gear are evenly arranged at one end of the outer side of the synchronous belt, and a motor for driving the synchronous wheel to rotate is arranged at the outer side of the fixed frame;

[0008] A first positioning component is arranged on the outer side of the pipeline conveyor belt, and the first positioning component includes a pipeline positioning seat that is evenly fixedly arranged on the outer side of the pipeline conveyor belt and used to support the pipeline, and the inner sides of the two ends of the pipeline positioning seat are symmetrically slidably connected with clamping blocks for clamping the pipeline, and the opposite sides of the two clamping blocks are arc-shaped grooves adapted to the pipeline, and the two clamping blocks on each pipeline positioning seat are symmetrically provided with traction arms on the opposite sides of the two clamping blocks, and the traction arms extend to the outer side of the pipeline positioning seat at one end away from the clamping block, and the traction arms are rotatably connected with a roller at one end away from the clamping block, and a flange is arranged on the outer side of the end of the traction arm close to the roller, and a fifth spring is sleeved on the traction arm and is located between the flange and the side wall of the pipeline positioning seat, and a driving plate is fixedly arranged on the inner side of the upper end of the fixed frame, and the end of the driving plate is a slope, and the driving plate is at the same height as the roller, and the roller and the driving plate are in rolling cooperation;

[0009] A second positioning assembly is provided at one end of the fixing frame away from the pipeline conveying mechanism, the second positioning assembly includes a fixing plate fixedly arranged on the inner side of one end of the fixing frame close to the laser cutting machine, a sliding groove is provided on the fixing plate, a lifting plate is provided on the sliding groove, a pipeline positioning cylinder is provided on the top of the lifting plate, and the end of the pipeline positioning cylinder away from the pipeline conveyor belt is closed, an annular groove is provided on the periphery of one end of the pipeline positioning cylinder close to the pipeline conveyor belt, a guide rod is provided on the upper end of the annular groove, a driving ring corresponding to and adapted to the annular groove is movably connected to the guide rod, a pushing block is fixedly provided on the top of the inner side of the driving ring, a third spring is provided on the outer side of the guide rod close to one end of the pipeline conveyor belt, and one end of the third spring is fixed to the side wall of the driving ring The cam is fixedly connected, and the other end is fixedly connected to the inner wall of the annular groove near one end of the pipeline conveyor belt. The upper end of the inner side of the pipeline positioning cylinder is provided with a notch corresponding to and adapted to the push block. A fixed cylinder is evenly and fixedly arranged on the inner side of the pipeline positioning cylinder. A force block is movably connected to the inner side of the fixed cylinder. One end of the force block extends to the inner side of the pipeline positioning cylinder, and the other end extends to the inner side of the annular groove. The end extending to the inner side of the pipeline positioning cylinder is rotatably connected to a positioning wheel. The end extending to the inner side of the annular groove is a slope. The side wall of the force block is provided with a second through groove, and the inner wall of the fixed cylinder is provided with a second fixed block located on the inner side of the second through groove, and the second fixed block slidably cooperates with the second through groove. A fourth spring is provided on the side of the second fixed block away from the positioning wheel.

[0010] Preferably, there are multiple groups of pipeline positioning seats, and the multiple groups of pipeline positioning seats are evenly distributed. The number of pipeline positioning seats in each group is multiple, and the multiple pipeline positioning seats in each group are evenly distributed;

[0011] The last pipe positioning seat side wall in each group is movably connected with a blocking arm, and the blocking arm corresponds to the clamping block, and the side wall of one end of the blocking arm and the side wall of the pipe positioning seat are both provided with magnetic blocks, and the magnetic blocks on the blocking arm and the magnetic blocks on the side wall of the pipe positioning seat correspond to each other and have opposite magnetic properties.

[0012] Preferably, a contact sensor is provided at one end of the inner cavity of the annular groove away from the pipeline conveyor belt.

[0013] Preferably, it also includes a lifting mechanism for driving the pipeline positioning cylinder to lift and lower the lifting mechanism includes a second gear tooth evenly arranged on the outside of one end of the synchronous belt, the side wall of the fixed frame is rotatably connected to the first rotating shaft corresponding to the synchronous belt, one end of the first rotating shaft extends to the outside of the fixed frame and is provided with a fourth gear intermittently meshing with the second gear tooth, the other end of the second fixed block extends to the inner side of the fixed frame and is provided with a second gear, the lifting plate is movably connected to the slide slot, one side of the lifting plate is provided with a vertical rack meshing with the second gear, the upper end side wall of the lifting plate is provided with a first through slot, the inner side of the slide slot is fixedly provided with a first fixed block movably connected to the first through slot, a second spring is provided between the top of the first fixed block and the top of the inner cavity of the first through slot, and the pipeline positioning cylinder corresponds to the pipeline positioning seat when the second spring is in an initial state.

[0014] Preferably, the conveying roller is rotatably connected to the inner side of the fixing frame via a one-way bearing.

[0015] The locking mechanism is a hole in the middle of the fixing plate, and the locking mechanism has a locking plate which is fixed to the fixing plate so as to lock the fixing plate in the locking position.

[0016] Preferably, the first gear teeth, the second gear teeth and the third gear teeth are distributed along the width direction of the synchronous belt, and are configured so that when the first gear teeth are separated from the first gear, the third gear teeth are meshed with the fifth gear, when the third gear teeth are separated from the fifth gear, the second gear teeth are meshed with the fourth gear, and when the second gear teeth are separated from the fourth gear, the first gear teeth are meshed with the first gear again.

[0017] Preferably, a slope groove is provided at a position corresponding to the top of the base and the laser cutting machine, and the bottom of the inner cavity of the slope groove is an inclined surface.

[0018] Preferably, the sliding frame is slidably connected to the top of the carrier plate via a guide rail;

[0019] The flat rack guide rail is slidably connected to the inner side of the fixing frame.

[0020] Preferably, a controller is provided on one side of the laser cutting machine.

[0021] Compared with the prior art, the present invention provides a quantitative cutting device for PE pipe production, which has the following beneficial effects:

[0022] 1. The PE pipe production quantitative cutting equipment can not only facilitate the transportation of the pipe, but also fix the two ends of the pipe through the cooperation of the pipe conveying mechanism, the first positioning component and the second positioning component, so as to facilitate the cutting of the laser cutting machine and prevent radial runout at the moment of cutting, thereby ensuring a relatively smooth incision and improving the product quality. Moreover, the fixation of both ends of the pipe can be automatically realized when the pipe conveying mechanism is running, and the fixation is realized by leveraging force, without the need to set up multiple driving sources, with low cost and compact structure.

[0023] 2. The quantitative cutting equipment for PE pipe production can realize automatic unloading of the cut pipe after cutting through the provided lifting mechanism. It can realize continuous production by cooperating with the pipe conveying mechanism and the first positioning component. The pipe loading operation can be carried out while cutting, and the pipe is automatically unloaded after cutting, thereby improving production efficiency.

[0024] 3. The PE pipe production quantitative cutting equipment can conveniently lock the second positioning component through the set locking mechanism to ensure the stability during cutting. The locking mechanism is automatically realized before cutting and shares the same driving source with the pipeline conveying mechanism and lifting mechanism. The structure is more compact and the linkage is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the fixing frame of the present invention close to one end of the laser cutting machine;

[0028] Figure 4 It is a schematic diagram of the structure after the base, the fixing frame and the laser cutting machine of the present invention are removed;

[0029] Figure 5 It is a structural schematic diagram of the lifting mechanism, locking mechanism, first gear and synchronous belt of the present invention in a coordinated state;

[0030] Figure 6 The present invention Figure 5 A structural diagram from another perspective of the basis;

[0031] Figure 7 It is a structural schematic diagram of the locking mechanism of the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the present invention when the lifting plate and the fixed plate are disassembled;

[0033] Fig. 9 is a schematic structural diagram of a second positioning assembly of the present invention;

[0034] Fig.10 is an exploded view of the second positioning assembly of the present invention;

[0035] Fig.11 It is a schematic diagram of the structure of the present invention when the fixing cylinder and the force-bearing block are disassembled;

[0036] Fig.12 It is a schematic diagram of the structure of the fourth gear, the fifth gear, the first gear and the synchronous belt in the matching state of the present invention;

[0037] Fig.13 It is a schematic diagram of the structure of the pipeline conveyor belt and the driving plate of the present invention in a matching state;

[0038] Fig.14 is a schematic structural diagram of the first positioning assembly of the present invention;

[0039] Fig.15 It is a schematic structural diagram of the first positioning assembly of the present invention in a disassembled state.

[0040] In the figure: 1, base; 2, ramp groove; 3, fixed frame; 4, pipeline conveyor belt; 5, laser cutting machine; 6, pipeline positioning cylinder; 7, driving plate; 8, pipeline positioning seat; 9, synchronous belt; 10, motor; 11, transmission roller; 12, carrier plate; 13, first gear; 14, vertical rack; 15, flat rack; 16, synchronous wheel; 17, second gear; 18, third gear; 19, fourth gear; 20, fifth gear; 21, sliding frame; 22, fixed plate; 23, first spring; 24, locking tongue; 25, lifting plate; 26, second spring; 27, first through groove; 28, Locking groove; 29, sliding groove; 30, first fixed block; 31, driving ring; 32, guide rod; 33, third spring; 34, pushing block; 35, annular groove; 36, positioning wheel; 37, fixing cylinder; 38, force block; 39, notch; 40, contact sensor; 41, second fixed block; 42, fourth spring; 43, second through groove; 44, first gear tooth; 45, second gear tooth; 46, third gear tooth; 47, first rotating shaft; 48, second rotating shaft; 49, traction arm; 50, flange; 51, fifth spring; 52, roller; 53, clamping block; 54, stop arm; 55, magnetic block. DETAILED DESCRIPTION

[0041] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0042] Preferred Embodiments

[0043] like Figure 1-Figure 5 As shown, a quantitative cutting device for producing PE pipes comprises a base 1 and a laser cutting machine 5 arranged at one end of the top of the base 1, a fixing frame 3 is arranged at the top of the base 1, a pipe conveying mechanism is arranged at one end of the fixing frame 3, and the pipe conveying mechanism comprises a pair of conveying rollers 11 arranged at the inner side of one end of the fixing frame 3 away from the laser cutting machine 5, the conveying rollers 11 are rotatably connected to the inner side of the fixing frame 3 through a one-way bearing, and pipe conveying belts 4 are arranged on the two conveying rollers 11, one end of one of the conveying rollers 11 extends to the outer side of the fixing frame 3 and is provided with a first gear 13, a pair of synchronous wheels 16 are rotatably connected at the corresponding part of the outer side of the fixing frame 3 and the first gear 13, a synchronous belt 9 is arranged at the outer side of the two synchronous wheels 16, and the outer end of the synchronous belt 9 is evenly provided with first gear teeth 44 intermittently meshing with the first gear 13, and a motor 10 for driving the synchronous wheel 16 to rotate is arranged at the outer side of the fixing frame 3;

[0044] like Figure 3-Figure 4 , Figure 13-Figure 15 As shown, a first positioning component is provided on the outer side of the pipeline conveyor belt 4, and the first positioning component includes a pipeline positioning seat 8 which is evenly fixedly arranged on the outer side of the pipeline conveyor belt 4 and is used to support the pipeline. There are multiple groups of pipeline positioning seats 8, and the multiple groups of pipeline positioning seats 8 are evenly distributed. The number of pipeline positioning seats 8 in each group is multiple, and the multiple pipeline positioning seats 8 in each group are evenly distributed. The inner sides of the two ends of the pipeline positioning seats 8 are symmetrically slidably connected with clamping blocks 53 for clamping the pipeline, and the opposite sides of the two clamping blocks 53 are arc-shaped grooves adapted to the pipeline. The opposite sides of the two clamping blocks 53 on each pipeline positioning seat 8 are symmetrically provided with traction arms 49, and the traction arms 49 extend to the outer side of the pipeline positioning seat 8 away from the end of the clamping block 53, and the traction arms 4 9 is rotatably connected with a roller 52 at one end away from the clamping block 53, a flange 50 is arranged on the outer side of the end of the traction arm 49 close to the roller 52, and a fifth spring 51 is sleeved on the traction arm 49 and is located between the flange 50 and the side wall of the pipeline positioning seat 8, a driving plate 7 is fixedly arranged on the inner side of the upper end of the fixing frame 3, and the end of the driving plate 7 is a slope, and the driving plate 7 is at the same height as the roller 52, and the roller 52 and the driving plate 7 are rollingly matched, and the side wall of the last pipeline positioning seat 8 of each group is movably connected with a blocking arm 54, and the blocking arm 54 corresponds to the clamping block 53, and a magnetic block 55 is arranged on the side wall of one end of the blocking arm 54 and the side wall of the pipeline positioning seat 8, and the magnetic block 55 on the blocking arm 54 and the magnetic block 55 on the side wall of the pipeline positioning seat 8 correspond to each other and have opposite magnetism;

[0045] like Figure 1 , Figure 3-Figure 6 , Figure 8-Figure 11 As shown, a second positioning assembly is provided at one end of the fixed frame 3 away from the pipeline conveying mechanism, and the second positioning assembly includes a fixed plate 22 fixedly arranged on the inner side of one end of the fixed frame 3 close to the laser cutting machine 5, a slide groove 29 is provided on the fixed plate 22, and a lifting plate 25 is provided on the slide groove 29, and a pipeline positioning cylinder 6 is provided on the top of the lifting plate 25, and the end of the pipeline positioning cylinder 6 away from the pipeline conveyor belt 4 is closed, and an annular groove 35 is provided on the periphery of the end of the pipeline positioning cylinder 6 close to the pipeline conveyor belt 4, and a guide rod 32 is provided on the upper end of the annular groove 35, and a driving ring 31 corresponding to and adapted to the annular groove 35 is movably connected to the guide rod 32, and a push block 34 is fixedly provided on the top of the inner side of the driving ring 31, and a third spring 33 is provided on the outer side of the guide rod 32 close to the pipeline conveyor belt 4, and one end of the third spring 33 is fixedly connected to the side wall of the driving ring 31, and the other end is fixedly connected to the annular groove 35 close to the pipeline The inner wall of one end of the conveyor belt 4 is fixedly connected, and a notch 39 corresponding to and adapted to the push block 34 is provided at the upper end of the inner side of the pipeline positioning cylinder 6. A contact sensor 40 is provided at the end of the inner cavity of the annular groove 35 away from the pipeline conveyor belt 4. A fixed cylinder 37 is evenly and fixedly provided on the inner side of the pipeline positioning cylinder 6. A force block 38 is movably connected to the inner side of the fixed cylinder 37. One end of the force block 38 extends to the inner side of the pipeline positioning cylinder 6, and the other end extends to the inner side of the annular groove 35. The end extending to the inner side of the pipeline positioning cylinder 6 is rotatably connected to the positioning wheel 36. The end extending to the inner side of the annular groove 35 is a slope. The side wall of the force block 38 is provided with a second through groove 43. The inner wall of the fixed cylinder 37 is provided with a second fixed block 41 located on the inner side of the second through groove 43, and the second fixed block 41 is slidably matched with the second through groove 43. A fourth spring 42 is provided on the side of the second fixed block 41 away from the positioning wheel 36.

[0046] like Figure 4-Figure 6 , Figure 8 , Fig.12 As shown, it also includes a lifting mechanism for driving the pipeline positioning cylinder 6 to lift and lower, the lifting mechanism includes a second gear 45 evenly arranged on the outside of one end of the synchronous belt 9, the side wall of the fixed frame 3 is rotatably connected with a first rotating shaft 47 corresponding to the synchronous belt 9, one end of the first rotating shaft 47 extends to the outside of the fixed frame 3 and is provided with a fourth gear 19 intermittently meshing with the second gear 45, the other end of the second fixed block 41 extends to the inner side of the fixed frame 3 and is provided with a second gear 17, the lifting plate 25 is movably connected with the slide groove 29, a vertical rack 14 meshing with the second gear 17 is provided on one side of the lifting plate 25, a first through groove 27 is provided on the upper end side wall of the lifting plate 25, a first fixed block 30 movably connected with the first through groove 27 is fixedly provided on the inner side of the slide groove 29, a second spring 26 is provided between the top of the first fixed block 30 and the top of the inner cavity of the first through groove 27, and when the second spring 26 is in the initial state, the pipeline positioning cylinder 6 corresponds to the pipeline positioning seat 8.

[0047] In addition, if Figure 4-Figure 7 As shown, in order to ensure the stability of the pipeline positioning cylinder 6 during cutting, a locking mechanism is provided at one end of the inner side of the fixed frame 3 near the pipeline positioning cylinder 6, and the locking mechanism includes a carrier plate 12 arranged on the side of the fixed plate 22 away from the pipeline conveyor belt 4, and a sliding frame 21 is movably connected to the carrier plate 12 through a guide rail, and a locking tongue 24 is fixedly provided in the middle of one side of the sliding frame 21 near the fixed plate 22, and a first spring 23 is provided between the end of one side of the sliding frame 21 near the fixed plate 22 and the end of the top of the carrier plate 12 near the fixed plate 22, and the lower end of the lifting plate 25 and the side wall of the fixed plate 22 are provided with a locking groove 28 corresponding to and adapted to the locking tongue 24, and a flat rack 15 corresponding to the sliding frame 21 is provided at one end of the inner side of the fixed frame 3, and the flat rack 15 is movably connected to the inner side of the fixed frame 3 through a guide rail, and one end of the flat rack 15 is fixedly connected to the upper end of the sliding frame 21, so as to slide. The displacement of the frame 21 drives the flat rack 15 to move. The side wall of the fixed frame 3 is rotatably connected to a second rotating shaft 48 corresponding to the synchronous belt 9. One end of the second rotating shaft 48 extends to the outside of the fixed frame 3 and is fixedly provided with a fifth gear 20. The other end of the second rotating shaft 48 extends to the inside of the fixed frame 3 and is fixedly provided with a third gear 18 meshing with the flat rack 15. One end of the outer side of the synchronous belt 9 is evenly provided with third gear teeth 46 intermittently meshing with the fifth gear 20. The first gear teeth 44, the second gear teeth 45, and the third gear teeth 46 are distributed along the width direction of the synchronous belt 9, and are configured so that when the first gear teeth 44 are separated from the first gear 13, the third gear teeth 46 are meshed with the fifth gear 20, when the third gear teeth 46 are separated from the fifth gear 20, the second gear teeth 45 are meshed with the fourth gear 19, and when the second gear teeth 45 are separated from the fourth gear 19, the first gear teeth 44 are meshed with the first gear 13 again.

[0048] Further, such as Figure 1 As shown, a slope groove 2 is provided at the top of the base 1 corresponding to the laser cutting machine 5, and the bottom of the inner cavity of the slope groove 2 is an inclined surface.

[0049] In addition, if Figure 1-Figure 3 As shown, a controller is also provided on one side of the laser cutting machine 5, and the controller is used to control the motor 10, the laser cutting machine 5, etc.

[0050] Working principle: when in use, first place a pipe on a group of pipe positioning seats 8, flip and merge the blocking arm 54 at the tail end of the last pipe positioning seat 8 in the group of pipe positioning seats 8, so that the magnetic block 55 is magnetically connected, so that the tail end of the pipe contacts the blocking arm 54, so that the blocking arm 54 blocks the pipe, and the pipe feeding pre-positioning is realized, and then the motor 10 is controlled to drive the synchronous wheel 16 to rotate, and the synchronous wheel 16 drives the synchronous belt 9 to operate. When the first gear 44 on the synchronous belt 9 is meshed with the first gear 13, the conveying roller shaft 11 is driven to rotate, and then the conveying roller shaft 11 drives the pipe conveyor belt 4 to convey forward a distance. When the pipe conveyor belt 4 is conveyed, it will drive the pipe positioning seat 8 to move, and the roller 52 on the side of the pipe positioning seat 8 will enter between the two driving plates 7 During the process, as the pipeline positioning seat 8 is displaced, the traction arm 49 drives the clamping block 53 to move toward the middle to further clamp the pipeline, and at the same time, the fifth spring 51 is compressed by the flange 50. Then, as the pipeline conveyor belt 4 runs, one end of the pipeline will enter the pipeline positioning cylinder 6, and then the pipeline pushes the driving ring 31 to move through the pushing block 34, and the guide rod 32 guides, and the third spring 33 is stretched. When the third one contacts the end of the force block 38 located on the inner side of the annular groove 35, the force block 38 is pushed to move, and the force block 38 cooperates with the second fixing block 41 to squeeze the fourth spring 42, and the positioning wheel 36 moves toward the middle of the pipeline positioning cylinder 6 to clamp the pipeline. When the driving ring 31 contacts the contact sensor 40, the laser cutting machine 5 receives a signal. At this time, the pipeline is fixed firmly, and at the same time, the first The gear 44 is separated from the first gear 13. At this time, one end of the pipeline is clamped by the positioning wheel 36, and the other end is clamped by the pipeline positioning seat 8 on the pipeline conveyor belt 4. Since the conveying roller shaft 11 is fixed to the inner side of the fixing frame 3 through a one-way bearing, the pipeline conveyor belt 4 will not rotate back due to the reverse force of the third spring 33. After the first gear 44 is separated from the first gear 13, the third gear 46 begins to mesh with the fifth gear 20, and then the second rotating shaft 48 drives the third gear 18 to rotate, and the third gear 18 drives the flat rack 15 to move, and the flat rack 15 drives the sliding frame 21 to move. The sliding frame 21 compresses the first spring 23 and drives the locking tongue 24 to pass through the locking groove 28, thereby locking the lifting plate 25 to ensure the stability of the pipeline positioning cylinder 6 and the lifting and lowering. After the plate 25 is locked, the laser cutting machine 5 quickly cuts the pipeline, during which the synchronous belt 9 can continue to run, and the locking tongue 24 can continue to move during cutting. After cutting, the fifth gear 20 is separated from the third gear tooth 46, the first spring 23 is reset, and then the sliding frame 21 is reset, and the locking tongue 24 is disengaged from the locking groove 28. Then, with the operation of the synchronous belt 9, the second gear tooth 45 begins to mesh with the fourth gear 19, and then the first rotating shaft 47 drives the second gear 17 to rotate, and the second gear 17 drives the lifting plate 25 to move downward through the vertical rack 14. With the action of the first fixed block 30, the second spring 26 is compressed, and the pipeline positioning cylinder 6 moves downward with the cut pipeline, so that the cut pipeline is separated and staggered from the pipeline fixed on the back of the pipeline conveyor belt 4.Then, under the reverse force of the third spring 33, the pipe is pushed out of the pipe positioning cylinder 6, and then slides down and is collected by the slope groove 2. In this cycle, the pipe is cut and shortened, and the last section of the pipe can directly fall into the slope groove 2 and slide down with the operation of the pipe conveyor belt 4. In addition, during the cutting period, the subsequent set of pipe positioning seats 8 can be pre-positioned for pipe feeding, so that when the previous pipe is quantitatively cut, the subsequent pipe can directly follow up, which can achieve continuous production and improve efficiency.

[0051] It should be noted that the cut pipe materials are processed to be of equal length, and the distance the positioned pipe is transported forward each time the first gear 44 meshes with the first gear 13 is of equal length, and the distance of each displacement can just achieve contact between the drive ring 31 and the contact sensor 40.

[0052] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A quantitative cutting device for producing PE pipes, comprising a base (1) and a laser cutting machine (5) arranged at one end of the top of the base (1), characterized in that: A fixed frame (3) is arranged on the top of the base (1), and a pipeline conveying mechanism is arranged at one end of the fixed frame (3), and the pipeline conveying mechanism comprises a pair of conveying rollers (11) arranged on the inner side of one end of the fixed frame (3) away from the laser cutting machine (5), and pipeline conveying belts (4) are arranged on the two conveying rollers (11), one end of one of the conveying rollers (11) extends to the outside of the fixed frame (3) and is provided with a first gear (13), and a pair of synchronous wheels (16) are rotatably connected at the corresponding position of the outer side of the fixed frame (3) and the first gear (13), and synchronous belts (9) are arranged on the outer side of the two synchronous wheels (16), and the outer end of the synchronous belt (9) is evenly provided with first gear teeth (44) intermittently meshing with the first gear (13), and a motor (10) for driving the synchronous wheels (16) to rotate is arranged on the outer side of the fixed frame (3); A first positioning assembly is arranged on the outer side of the pipeline conveyor belt (4), the first positioning assembly comprising a pipeline positioning seat (8) evenly fixedly arranged on the outer side of the pipeline conveyor belt (4) and used to support the pipeline, the inner sides of the two ends of the pipeline positioning seat (8) are symmetrically slidably connected with clamping blocks (53) for clamping the pipeline, and the opposite sides of the two clamping blocks (53) are arc-shaped grooves adapted to the pipeline, and the opposite sides of the two clamping blocks (53) on each pipeline positioning seat (8) are symmetrically provided with traction arms (49), and the traction arms (49) extend from one end away from the clamping block (53) to On the outer side of the pipeline positioning seat (8), one end of the traction arm (49) away from the clamping block (53) is rotatably connected to a roller (52), and a flange (50) is arranged on the outer side of one end of the traction arm (49) close to the roller (52), and a fifth spring (51) is sleeved on the traction arm (49) and is located between the flange (50) and the side wall of the pipeline positioning seat (8), and a driving plate (7) is fixedly arranged on the inner side of the upper end of the fixing frame (3), and the end of the driving plate (7) is a slope surface, and the driving plate (7) and the roller (52) are at the same height, and the roller (52) and the driving plate (7) are rollingly matched; A second positioning assembly is provided at one end of the fixing frame (3) away from the pipeline conveying mechanism, the second positioning assembly comprises a fixing plate (22) fixedly arranged on the inner side of one end of the fixing frame (3) close to the laser cutting machine (5), a slide groove (29) is provided on the fixing plate (22), a lifting plate (25) is provided on the slide groove (29), a pipeline positioning cylinder (6) is provided on the top of the lifting plate (25), and the end of the pipeline positioning cylinder (6) away from the pipeline conveying belt (4) is in a closed shape, and the pipeline positioning cylinder (6) is provided in a closed shape. 6) An annular groove (35) is arranged on the periphery of one end of the pipeline conveyor belt (4), a guide rod (32) is arranged on the upper end of the annular groove (35), a driving ring (31) corresponding to and adapted to the annular groove (35) is movably connected to the guide rod (32), a push block (34) is fixedly arranged on the top of the inner side of the driving ring (31), a third spring (33) is arranged on the outer side of the guide rod (32) close to the end of the pipeline conveyor belt (4), and one end of the third spring (33) is connected to the side of the driving ring (31). The pipeline positioning cylinder (6) is fixedly connected to the wall, and the other end is fixedly connected to the inner wall of the annular groove (35) near one end of the pipeline conveyor belt (4). The upper end of the inner side of the pipeline positioning cylinder (6) is provided with a notch (39) corresponding to and matching the push block (34). The inner side of the pipeline positioning cylinder (6) is evenly surrounded and fixedly provided with a fixing cylinder (37). The inner side of the fixing cylinder (37) is movably connected with a force block (38). One end of the force block (38) extends to the inner side of the pipeline positioning cylinder (6), and the other end extends to the inner side of the annular groove (35). side, and one end extending to the inner side of the pipeline positioning cylinder (6) is rotatably connected to the positioning wheel (36), and one end extending to the inner side of the annular groove (35) is a slope, the side wall of the force-bearing block (38) is provided with a second through groove (43), the inner wall of the fixing cylinder (37) is provided with a second fixing block (41) located inside the second through groove (43), and the second fixing block (41) is slidably matched with the second through groove (43), and a fourth spring (42) is provided on the side of the second fixing block (41) away from the positioning wheel (36); There are multiple groups of pipeline positioning seats (8), the multiple groups of pipeline positioning seats (8) are evenly distributed, the number of pipeline positioning seats (8) in each group is multiple, and the multiple pipeline positioning seats (8) in each group are evenly distributed; The last pipe positioning seat (8) in each group is movably connected to a blocking arm (54) on its side wall, and the blocking arm (54) corresponds to the clamping block (53), and a magnetic block (55) is provided on one end of the side wall of the blocking arm (54) and the side wall of the pipe positioning seat (8), and the magnetic block (55) on the blocking arm (54) and the magnetic block (55) on the side wall of the pipe positioning seat (8) correspond to each other and have opposite magnetic properties; A contact sensor (40) is provided at one end of the inner cavity of the annular groove (35) away from the pipeline conveyor belt (4); The utility model also comprises a lifting mechanism for driving the pipeline positioning cylinder (6) to lift and lower, the lifting mechanism comprising a second gear (45) evenly arranged on the outer side of one end of the synchronous belt (9), the side wall of the fixing frame (3) is rotatably connected to a first rotating shaft (47) corresponding to the synchronous belt (9), one end of the first rotating shaft (47) extends to the outer side of the fixing frame (3) and is provided with a fourth gear (19) intermittently meshing with the second gear (45), the other end of the second fixing block (41) extends to the inner side of the fixing frame (3) and is provided with a second gear (17), the lifting plate (25 ) is movably connected to the slide groove (29), a vertical rack (14) meshing with the second gear (17) is provided on one side of the lifting plate (25), a first through groove (27) is provided on the upper side wall of the lifting plate (25), a first fixed block (30) movably connected to the first through groove (27) is fixedly provided on the inner side of the slide groove (29), a second spring (26) is provided between the top of the first fixed block (30) and the top of the inner cavity of the first through groove (27), and when the second spring (26) is in the initial state, the pipeline positioning cylinder (6) corresponds to the pipeline positioning seat (8); The conveying roller shaft (11) is rotatably connected to the inner side of the fixing frame (3) via a one-way bearing; A locking mechanism is provided at one end of the inner side of the fixing frame (3) close to the pipeline positioning cylinder (6), and the locking mechanism comprises a carrier plate (12) arranged on the side of the fixing plate (22) away from the pipeline conveyor belt (4), and a sliding frame (21) is movably connected to the carrier plate (12), and a locking tongue (24) is fixedly provided at the middle of one side of the sliding frame (21) close to the fixing plate (22), and an end of one side of the sliding frame (21) close to the fixing plate (22) and a top of the carrier plate (12) close to the fixing plate (2 2), a first spring (23) is arranged between one end of the lifting plate (25), a locking groove (28) corresponding to and adapted to the locking tongue (24) is arranged at the lower end of the lifting plate (25) and the side wall of the fixed plate (22), a flat rack (15) corresponding to the sliding frame (21) is movably arranged at one end of the inner side of the fixed frame (3), and one end of the flat rack (15) is fixedly connected to the upper end of the sliding frame (21), so that the displacement of the sliding frame (21) drives the displacement of the flat rack (15), and the side wall of the fixed frame (3) A second rotating shaft (48) corresponding to the synchronous belt (9) is rotatably connected, one end of the second rotating shaft (48) extends to the outside of the fixed frame (3) and is fixedly provided with a fifth gear (20), the other end of the second rotating shaft (48) extends to the inside of the fixed frame (3) and is fixedly provided with a third gear (18) meshing with the flat rack (15), one end of the outer side of the synchronous belt (9) is evenly provided with third gear teeth (46) intermittently meshing with the fifth gear (20), the first gear teeth (44), The second gear teeth (45) and the third gear teeth (46) are distributed along the width direction of the synchronous belt (9), and are configured such that when the first gear teeth (44) are separated from the first gear (13), the third gear teeth (46) are meshed with the fifth gear (20); when the third gear teeth (46) are separated from the fifth gear (20), the second gear teeth (45) are meshed with the fourth gear (19); and when the second gear teeth (45) are separated from the fourth gear (19), the first gear teeth (44) are meshed with the first gear (13) again; A slope groove (2) is provided at the top of the base (1) corresponding to the laser cutting machine (5), and the bottom of the inner cavity of the slope groove (2) is an inclined surface; The sliding frame (21) is slidably connected to the top of the carrier plate (12) via a guide rail; The flat rack (15) guide rail is slidably connected to the inner side of the fixing frame (3).

2. A PE pipe production quantitative cutting equipment according to claim 1, characterized in that: A controller is provided on one side of the laser cutting machine (5).

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