CN215790212U - Automatic pipe cutting machine - Google Patents

Abstract

The utility model provides an automatic pipe cutting machine which comprises a workbench, and a material tray mechanism, a pipe conveying mechanism and a pipe cutting mechanism which are sequentially arranged on the workbench, wherein rubber pipes of the material tray mechanism enter the pipe cutting mechanism to be cut under the conveying of the pipe conveying mechanism. The rubber tube conveying device is provided with the sensing connecting rod, the upper sensor and the lower sensor which are matched with each other to control the starting and stopping of the tube conveying motor so as to achieve the purpose of continuously and effectively conveying the rubber tubes. The arrangement of the roller encoder ensures the length precision of the cut rubber tube, and the arrangement of the rubber tube positioning block can adapt to the cutting of rubber tube products with different thickness specifications. Meanwhile, the arrangement of the rubber tube pre-pressing mechanism enables the rubber tube to be fixed before cutting, and the smoothness of the cut of the rubber tube is guaranteed. The automatic control device adopts automatic control, improves the production efficiency and the processing precision, can be suitable for cutting different rubber tube products, and can be widely applied to the technical field of rubber tube cutting.

Description

Automatic pipe cutting machine

Technical Field

The utility model relates to the technical field of rubber pipe cutting, in particular to an automatic pipe cutting machine.

Background

Carbon brushes, also called brushes, are widely used as a sliding contact in many electrical devices. In the current automobile carbon brush industry, the cutting efficiency and the cutting precision of cutting equipment for carbon brush rubber tubes are low, the product specification of the cut rubber tubes is single, and the requirement of enterprise production cannot be met.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the automatic pipe cutting machine which can effectively improve the cutting efficiency and the cutting precision and can cut rubber pipes with different specifications.

Therefore, the utility model provides an automatic pipe cutting machine which comprises a workbench, and a material tray mechanism, a pipe conveying mechanism and a pipe cutting mechanism which are sequentially arranged on the workbench, wherein rubber pipes of the material tray mechanism enter the pipe cutting mechanism for cutting under the conveying of the pipe conveying mechanism.

Preferably, charging tray mechanism includes the charging tray support, and the charging tray support is fixed at the up end of workstation, and charging tray leg joint is equipped with the charging tray axle, and charging tray axle periphery cover is equipped with the material roller, and the material roller passes through thrust ball bearing and charging tray axle rotatable coupling, and the epaxial charging tray that still is equipped with respectively of charging tray at material roller both ends, and the inboard charging tray of charging tray axle passes through screw and charging tray axle fixed connection, and the charging tray in the charging tray axle outside passes through opening thrust ring and charging tray axle fixed.

Preferably, the upper end and the lower end of the tray support are both provided with tray shafts, a tray partition plate is arranged between the upper tray shaft and the lower tray shaft, and the tray partition plate is fixedly connected with the tray support.

Preferably, the front end of the charging tray mechanism is provided with a pipe conveying mechanism, the pipe conveying mechanism comprises a pipe conveying bottom plate fixed at the upper end of the workbench, two ends of the pipe conveying bottom plate are respectively connected with a pipe conveying side bracket, the bottom of the pipe conveying side bracket is fixedly provided with a pipe conveying motor, the upper part of the pipe conveying side bracket is provided with a lower pipe conveying roller and an upper pipe conveying roller, an output shaft of the pipe conveying motor is in transmission connection with the lower pipe conveying roller through a pipe conveying synchronous belt wheel and a pipe conveying synchronous belt, and the lower pipe conveying roller is in transmission connection with the upper pipe conveying roller through a transmission gear; the pipe conveying side bracket is also connected with a pipe penetrating pore plate which is arranged between the material tray mechanism and the pipe conveying mechanism.

Preferably, the two ends of the lower pipe conveying roller are fixedly connected with the pipe conveying side brackets through bearings and bearing seats, the two ends of the upper pipe conveying roller are installed in the rectangular grooves of the two pipe conveying side brackets through the bearings and the bearing seats, a pipe conveying compression threaded rod is further arranged at the top end of each pipe conveying side bracket, the lower end of the pipe conveying compression threaded rod is in threaded connection with the bearing seats at the two ends of the upper pipe conveying roller, and the upper pipe conveying roller can move up and down along the rectangular grooves of the pipe conveying side brackets under the effect of the pipe conveying compression threaded rod.

Preferably, the pipe conveying mechanism further comprises a sensing connecting rod base fixedly connected with the workbench, two ends of the sensing connecting rod base are respectively connected with the sensing connecting rod in a rotatable mode through a sensing connecting rod pin shaft, the other end of the sensing connecting rod is connected with a wire pressing wheel, an upper sensor is arranged on one side of the sensing connecting rod base, a lower sensor is arranged at the bottom of the pipe conveying side support, and a buffer is further arranged on the workbench between the sensing connecting rod base and the pipe conveying side support.

Preferably, the front end of the pipe conveying mechanism is provided with a pipe cutting mechanism, the pipe cutting mechanism comprises a pipe cutting bottom plate fixed at the upper end of the workbench, two ends of the pipe cutting bottom plate are respectively connected with pipe cutting side brackets, the bottom of each pipe cutting side bracket is fixedly provided with a stepping motor, the upper part of each pipe cutting side bracket is provided with an under pipe cutting roller and an upper pipe cutting roller, an output shaft of the stepping motor is in transmission connection with the under pipe cutting roller through a pipe cutting synchronous belt wheel and a pipe cutting synchronous belt, and the under pipe cutting roller is in transmission connection with the upper pipe cutting roller through a transmission gear; the top of the pipe cutting side support is also provided with a pipe cutting cylinder support, a pipe cutting cylinder is fixedly arranged on the pipe cutting cylinder support, the piston output end of the pipe cutting cylinder is connected with a pipe cutting movable blade through a pipe cutting cylinder connector, a pipe cutting fixed blade is arranged below the pipe cutting movable blade, and the pipe cutting fixed blade is fixedly connected with the pipe cutting side support through a fixed blade fixing plate.

Preferably, the two ends of the lower tube cutting roller are fixedly connected with the tube cutting side brackets through bearings and bearing seats, the two ends of the upper tube cutting roller are installed in the rectangular grooves of the two tube cutting side brackets through the bearings and the bearing seats, the top ends of the tube cutting side brackets are further provided with tube cutting compression threaded rods, the lower ends of the tube cutting compression threaded rods are in threaded connection with the bearing seats at the two ends of the upper tube cutting roller, and the upper tube cutting roller can move up and down along the rectangular grooves of the tube cutting side brackets under the effect of the tube cutting compression threaded rods.

Preferably, the pipe cutting side bracket is further provided with a roller encoder through a connecting plate in a connected mode, a semicircular rubber pipe positioning block is further sleeved on the outer side of the upper cutting pipe roller, and the rubber pipe positioning block is fixedly connected with a T-shaped block arranged in a connecting plate sliding groove through a screw.

Preferably, the pipe cutting mechanism further comprises a rubber pipe pre-pressing mechanism, the rubber pipe pre-pressing mechanism is provided with a fixed block, the fixed block is fixedly connected with the side face of the pipe cutting blade, a pressing rod is arranged in a through hole of the fixed block in a sliding connection mode, the top end of the pressing rod penetrates through the fixed block and is connected with a nut, the bottom end of the pressing rod is connected with a pressing block, and a spring is sleeved on the outer side of the pressing rod between the fixed block and the pressing block.

The utility model provides an automatic pipe cutting machine, which has the following beneficial effects:

(1) the utility model is provided with a pipe conveying mechanism, and an upper sensor, a lower sensor and an induction connecting rod of the pipe conveying mechanism are matched with each other to realize the automatic transmission of rubber pipes of the pipe conveying mechanism.

(2) The arrangement of the roller encoder of the pipe cutting mechanism improves the cutting length precision of the rubber pipe, simultaneously ensures that the lengths of two cut rubber pipes are consistent, and improves the cutting efficiency and precision of the rubber pipe.

(3) The rubber tube positioning block can be adjusted to adapt to the cutting of rubber tubes with different thicknesses, and meanwhile, the rubber tube transverse positioning effect is achieved.

(4) The rubber tube pre-pressing mechanism is arranged to press the rubber tube before the rubber tube is cut, so that irregular tangent planes of the rubber tube caused by the movement and displacement of the rubber tube are prevented, and the length precision of the cut rubber tube is ensured.

(5) The automatic pipe cutting machine is provided with the material tray mechanism, the pipe conveying mechanism and the pipe cutting mechanism, the pipe conveying mechanism continuously conveys pipes under the control of the PLC, and the pipe cutting mechanism continuously cuts pipes, so that automatic control is realized, and the pipe cutting efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a front view of the tray mechanism of the present invention;

FIG. 3 is a schematic structural diagram of a perspective view of the tray mechanism of the present invention;

FIG. 4 is a schematic structural view of the tube feeding mechanism of the present invention;

FIG. 5 is a schematic view of another tube conveying mechanism of the present invention;

FIG. 6 is a schematic structural view of a front view of the pipe cutting mechanism of the present invention;

FIG. 7 is a schematic structural view of a perspective view of the pipe cutting mechanism of the present invention;

fig. 8 is a schematic structural view of a sectional view a-a shown in fig. 6.

The labels in the figure are: 1. the automatic pipe cutting machine comprises a workbench, 2. a material tray mechanism, 21. a material tray bracket, 22. a material tray shaft, 23. a material roller, 24. a thrust ball bearing, 25. a material tray, 26. an opening thrust ring, 27. a material tray clapboard, 3. a pipe conveying mechanism, 31. a pipe conveying bottom plate, 311. a buffer, 32. a pipe conveying side bracket, 321. a lower position sensor, 33. a pipe conveying motor, 331. a pipe conveying synchronous belt wheel, 332. a pipe conveying synchronous belt, 333. a transmission gear, 34. an upper pipe conveying roller, 35. a lower pipe conveying roller, 36. a pipe penetrating hole plate, 37. a pipe conveying pressing threaded rod, 38. a sensing connecting rod base, 381. a sensing connecting rod pin shaft, 382. an upper position sensor, 39. a sensing connecting rod, 391. a wire pressing wheel, 4. a pipe cutting mechanism, 41. a pipe cutting bottom plate, 42. a pipe cutting side bracket, 421. a fixed blade plate, 422. a pipe cutting fixed blade, 423. a roller, an encoder, 424. a positioning block rubber tube, 43. a stepping motor, 431. the pipe cutting device comprises a pipe cutting synchronous pulley, 432 pipe cutting synchronous belts, 44 pipe cutting rollers, 45 pipe cutting rollers, 46 pipe cutting cylinder supports, 47 pipe cutting cylinders, 471 pipe cutting cylinder connectors, 472 pipe cutting movable blades, 48 pipe cutting pressing threaded rods, 49 rubber pipe pre-pressing mechanisms, 491 fixing blocks, 492 pressing rods, 493 nuts, 494 pressing blocks, 495 springs, 5 discharge ports, 6 PLC control devices and 7 rubber pipes.

Detailed Description

The utility model is further described below in conjunction with the drawings and the specific embodiments to assist in understanding the contents of the utility model. The method used in the utility model is a conventional method if no special provisions are made; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.

As shown in fig. 1, the present invention provides an automatic pipe cutting machine, which comprises a workbench 1, and a material tray mechanism 2, a pipe feeding mechanism 3 and a pipe cutting mechanism 4 which are sequentially arranged on the workbench, wherein a rubber pipe 7 of the material tray mechanism 2 enters the pipe cutting mechanism 4 for cutting under the transmission of the pipe feeding mechanism 3.

As shown in fig. 2 to 3, the tray mechanism 2 includes a tray support 21, the tray support 21 is fixed on the upper end surface of the worktable 1, the tray support 21 is connected with a tray shaft 22, the tray shaft 22 extends along the horizontal direction, a material roller 23 is sleeved on the periphery of the tray shaft 22, and the material roller 23 is rotatably connected with the tray shaft 22 through a thrust ball bearing 24. The material tray shafts 22 at two ends of the material roller 23 are respectively sleeved with material trays 25, the material trays 25 on the inner sides of the material tray shafts 22 are fixedly connected with the material roller 23 through screws, the material trays 25 on the outer sides of the material tray shafts 22 are fixed with the material tray shafts 22 through opening thrust rings 26, and the material trays 25 are arranged to prevent the rubber tubes 7 from falling off.

Further, the upper end and the lower end of the tray support 21 are provided with tray shafts 22, a tray partition plate 27 is arranged between the upper tray shaft 22 and the lower tray shaft 22, the tray partition plate 27 is fixedly connected with the tray support 21, the tray partition plate 27 is arranged to separate the upper tray 25 from the lower tray 25, and the upper tray rubber tube 7 and the lower tray rubber tube 7 are prevented from being wound mutually.

Before the rubber tube 7 is cut, the rubber tube coil is sleeved on the periphery of the material roller 23, the material disc 25 and the thrust ball bearing 24 on the outer side are sequentially assembled, and finally the rubber tube 7 is fixed by the opening thrust ring 26 and is conveyed forwards along with the rotation of the material roller 23 in the feeding process of the rubber tube 7.

As shown in fig. 4 to 5, a tube feeding mechanism 3 is arranged at the front end of the tray mechanism 2, the tube feeding mechanism 3 includes a tube feeding bottom plate 31 fixed at the upper end of the workbench 1, two ends of the tube feeding bottom plate 31 are respectively connected with a tube feeding bracket 32, a tube feeding motor 33 is fixed at the bottom of the tube feeding bracket 32, a lower tube feeding roller 35 and an upper tube feeding roller 34 are arranged at the upper part of the tube feeding bracket 32, an output shaft of the tube feeding motor 33 is in transmission connection with the lower tube feeding roller 35 through a tube feeding synchronous belt 331 and a tube feeding synchronous belt 332, the lower tube feeding roller 35 is in transmission connection with the upper tube feeding roller 34 through a transmission gear 333, that is, the lower tube feeding roller 35 is driven to rotate by the action of the tube feeding motor 33, and the upper tube feeding roller 34 is driven to rotate by the lower tube feeding roller 35. The pipe conveying side bracket 32 is further connected with a pipe penetrating pore plate 36, and the pipe penetrating pore plate 36 is arranged between the tray mechanism 2 and the pipe conveying mechanism 3 and used for supporting and fixing the rubber pipe 7.

Further, the two ends of the lower delivery pipe roller 35 are fixedly connected with the delivery pipe side brackets 32 through bearings and bearing seats, the two ends of the upper delivery pipe roller 34 are installed in the rectangular grooves of the two delivery pipe side brackets 32 through bearings and bearing seats, the top end of the delivery pipe side bracket 32 is also provided with a delivery pipe compression threaded rod 37, the lower end of the delivery pipe compression threaded rod 37 is in threaded connection with the bearing seats at the two ends of the upper delivery pipe roller 34, under the action of the delivery pipe compression threaded rod 37, the upper delivery pipe roller 34 can move up and down along the rectangular groove of the delivery pipe side bracket 32 to compress the rubber pipe 7 between the upper delivery pipe roller 34 and the lower delivery pipe roller 35, the friction between the rubber pipe 7 and the upper and lower rollers is increased, and the rubber pipe 7 is smoothly transmitted.

The pipe feeding mechanism 3 further comprises an induction connecting rod base 38 fixedly connected with the workbench 1, the induction connecting rod base 38 is arranged at the front end of the pipe feeding bottom plate 31, two ends of the induction connecting rod base 38 are rotatably connected with an induction connecting rod 39 through induction connecting rod pin shafts 381, and the other end of the induction connecting rod 39 is connected with a wire pressing wheel 391. An upper sensor 382 is arranged on one side of the sensing connecting rod base 38, a lower sensor 321 is arranged at the bottom of the pipe side bracket 32, and the upper sensor 382, the lower sensor 321 and the sensing connecting rod 39 are matched with each other to realize the automatic transmission of the rubber pipe 7. A buffer 311 is further arranged on the workbench 1 between the sensing connecting rod base 38 and the pipe side bracket 32, and the buffer 311 is used for reducing the impact force and noise between the wire pressing wheel 391 and the workbench 1 during paying off.

Before the device runs, the pipe conveying pressing threaded rod 37 is adjusted according to the thickness of the rubber pipe 7, so that the distance between the upper pipe conveying roller wheel 34 and the lower pipe conveying roller wheel 35 is reduced, the friction force between the rubber pipe 7 and the upper and lower roller wheels is increased, and the rubber pipe 7 can be smoothly conveyed. After the rubber tube 7 comes out from the tray mechanism 2, the rubber tube firstly passes through the tube penetrating hole plate 36, is led out through the lower tube conveying roller 35 and the upper tube conveying roller 34 under the action of the tube conveying motor 33, bypasses the lower end of the wire pressing wheel 391, and is sent into the tube cutting mechanism 4 at the rear end. In the process that the pipe conveying motor 33 drives the two pipe conveying roller wheels to rotate for conveying pipes, because the rubber pipe 7 lengthening wire pressing wheel 391 rotates downwards along the axial direction of the sensing connecting rod pin shaft 381, when the lower sensor 321 at the bottom of the pipe conveying side bracket 32 senses the sensing connecting rod 39, the pipe conveying motor 33 stops conveying the pipes; when the pipe is continuously fed, the rubber pipe 7 between the pipe feeding mechanism 3 and the pipe cutting mechanism 4 is shortened, the line pressing wheel 391 rotates upwards along with the rubber pipe 7, and when the upper sensor 382 of the induction connecting rod base 38 senses the induction connecting rod 39, the pipe feeding motor 33 is started to continuously feed the pipe, so that the running continuity of the device is ensured, and the phenomenon that the rubber pipe 7 between the pipe feeding mechanism 3 and the pipe cutting mechanism 4 is too long and is wound is avoided.

As shown in fig. 6 to 8, the front end of the tube feeding mechanism 3 is provided with a tube cutting mechanism 4, the tube cutting mechanism 4 includes a tube cutting bottom plate 41 fixed on the upper end of the workbench 1, two ends of the tube cutting bottom plate 41 are respectively connected with a tube cutting side bracket 42, the bottom of the tube cutting side bracket 42 is fixedly provided with a stepping motor 43, the upper portion of the tube cutting side bracket 42 is provided with a tube cutting roller 45 and an upper tube cutting roller 44, an output shaft of the stepping motor 43 is in transmission connection with the tube cutting roller 45 through a tube cutting synchronous pulley 431 and a tube cutting synchronous belt 432, the tube cutting roller 45 is in transmission connection with the upper tube cutting roller 44 through a transmission gear 333, that is, the tube cutting roller 45 is driven to rotate by the stepping motor 43, and the upper tube cutting roller 44 is driven to rotate by the tube cutting roller 45. The top of the pipe cutting side support 42 is further provided with a pipe cutting cylinder support 46, a pipe cutting cylinder 47 is fixedly arranged on the pipe cutting cylinder support 46, the piston output end of the pipe cutting cylinder 47 is connected with a pipe cutting movable blade 472 through a pipe cutting cylinder connector 471, a pipe cutting fixed blade 422 is arranged below the pipe cutting movable blade 472, the pipe cutting fixed blade 422 is fixedly connected with the pipe cutting side support 42 through a fixed blade fixing plate 421, and the pipe cutting movable blade 472 moves up and down to cut the rubber pipe 7 under the action of the pipe cutting cylinder 47.

Further, the two ends of the lower tube cutting roller 45 are fixedly connected with the tube cutting side brackets 42 through bearings and bearing seats, the two ends of the upper tube cutting roller 44 are installed in the rectangular grooves of the two tube cutting side brackets 42 through the bearings and the bearing seats, the top ends of the tube cutting side brackets 42 are also provided with tube cutting compression threaded rods 48, the lower ends of the tube cutting compression threaded rods 48 are in threaded connection with the bearing seats at the two ends of the upper tube cutting roller 44, under the action of the tube cutting compression threaded rods 48, the upper tube cutting roller 44 can move up and down along the rectangular grooves of the tube cutting side brackets 42 to compress the rubber tube 7 between the upper tube cutting roller 44 and the lower tube cutting roller 45, the friction force between the rubber tube 7 and the upper and lower rollers is increased, and the rubber tube 7 is smoothly transmitted.

Further, the pipe cutting side bracket 42 is further provided with two roller encoders 423 through connection of a connecting plate, the rubber pipe 7 is arranged below the roller encoders 423, three semicircular rubber pipe positioning blocks 424 are further sleeved on the outer sides of the upper pipe cutting rollers 44, the rubber pipe positioning blocks 424 are fixedly connected with T-shaped blocks arranged in sliding grooves of the connecting plate through screws, and the rubber pipe 7 penetrates out of the two adjacent rubber pipe positioning blocks 424. When the rubber tube 7 is conveyed forwards, the roller encoders 423 move forwards along with the rubber tube 7 at the same time, when the readings of the two roller encoders 423 are inconsistent, the length of the two cut rubber tubes 7 is different, the device gives an alarm, and when the roller encoders 423 stop rotating, the alarm can be given out when the rubber tube 7 is blocked. The arrangement of the roller encoder 423 improves the cutting length precision of the rubber tube 7, ensures the consistent length of the two rubber tubes 7 to be cut, and improves the cutting efficiency and precision of the rubber tubes 7. The rubber tube positioning block 424 can slide in the chute of the connecting plate to adjust the distance, so that the rubber tube positioning block 424 can adapt to cutting of rubber tubes 7 with different thicknesses, and meanwhile, the rubber tube 7 can be transversely positioned. Moreover, when the two pipe cutting rollers and the pipe cutting blade 472 are worn, the rubber pipe positioning block 424 can be moved to adjust the position of the rubber pipe 7, the service time of the two pipe cutting rollers and the pipe cutting blade 472 is prolonged, and the cutting efficiency of the whole device is not affected.

The pipe cutting mechanism 4 further comprises a rubber pipe pre-pressing mechanism 49, the rubber pipe pre-pressing mechanism 49 is provided with a fixed block 491, the fixed block 491 is fixedly connected with the side surface of the pipe cutting movable blade 472, a pressing rod 492 is slidably connected in a through hole of the fixed block 491, the top end of the pressing rod 492 penetrates through the fixed block 491 and is connected with a nut 493, the bottom end of the pressing rod 492 is connected with a pressing block 494, the pressing block 494 is arranged below the pipe cutting movable blade 472, and a spring 495 is further sleeved on the outer side of the pressing rod 492 between the fixed block 491 and the pressing block 494. When the rubber tube 7 is cut, the rubber tube pre-pressing mechanism 49 moves downwards along with the pipe cutting movable blade 472, the pressing block 494 contacts the rubber tube, the pipe cutting movable blade 472 continues to move downwards, the fixing block 491 compresses the spring 495, and the spring 495 presses the end part of the rubber tube 7 by the counterforce of the pressing block 494, so that the irregular section of the rubber tube 7 caused by the movement of the rubber tube 7 is prevented, and meanwhile, the length precision of the cut rubber tube 7 is ensured.

The rear end of the side bracket 42 of the cutting pipe is also provided with a discharge hole 5 for receiving the cut rubber pipe 7.

The utility model is also provided with a PLC control device 6, and the PLC control device 6 is electrically connected with the pipe conveying motor 33, the upper sensor 382, the lower sensor 321, the stepping motor 43, the roller encoder 423 and the pipe cutting cylinder 47 to realize automatic control.

The working process of the utility model is as follows:

before the device is started, the distance between the lower tube sending roller 35 and the upper tube sending roller 34, the distance between the upper tube sending roller 44 and the lower tube cutting roller 45 and the distance between the tube positioning blocks 424 are adjusted according to the thickness of the tubes 7. After the rubber tube 7 is placed in the material roller 23 for installation, the smooth rotation of the material tray 25 is ensured without a pause phenomenon; the sensing link 39 is in a horizontal position, i.e., the lower sensor 321 has a signal. At the moment, the equipment operates, the rubber tube 7 is conveyed from left to right under the action of the stepping motor 43, and is led out to a position between the tube cutting movable blade 472 and the tube cutting fixed blade 422 through the upper tube cutting roller 44 and the lower tube cutting roller 45, the roller encoder 423 is conveyed forwards along with the rubber tube 7, when the number of readings of the roller encoder 423 reaches the preset length, the stepping motor 43 stops operating, the tube cutting air cylinder 47 starts, the tube cutting movable blade 472 moves downwards to cut the rubber tube 7 extending out of the tube cutting mechanism 4 and then returns to the original position, the stepping motor 43 starts again to continue tube feeding, and the next round of tube cutting is repeated. In the pipe cutting process, the rubber pipe 7 between the pipe conveying mechanism 3 and the pipe cutting mechanism 4 is shortened, the sensing connecting rod 39 rotates upwards along with the rubber pipe 7, when the upper sensor 382 of the sensing connecting rod base 38 senses the sensing connecting rod 39, the pipe conveying motor 33 is started to continue pipe conveying, the rubber pipe 7 is led out to the pipe cutting mechanism 4 through the upper pipe conveying roller wheel 34 and the lower pipe conveying roller wheel 35, the pipe conveying mechanism 3 discharges pipes, the pipe pressing wheel 391 rotates downwards, and the lower sensor 321 senses the sensing connecting rod 39, and then the pipe conveying motor 33 stops pipe conveying. In the whole pipe conveying process, pipe cutting is continuously carried out, the pipe conveying mechanism 3 also works repeatedly, and the rubber pipes 7 of the tray mechanism 2 continuously penetrate through the pipe penetrating hole plate 36 to enter the pipe conveying mechanism 3.

In the pipe conveying process, the two roller encoders 423 pressed above the rubber pipe 7 passively rotate along with the advancing of the rubber pipe 7, and when the signals of the two roller encoders 423 are inconsistent or one of the two roller encoders stops rotating, the PLC control device 6 gives an alarm.

The utility model can connect several groups of material tray mechanism 2, pipe feeding mechanism 3 and pipe cutting mechanism 4 in parallel, each group of pipe cutting mechanism 4 is controlled by PLC control device 6, different length parameters can be input between different groups, and rubber pipes 7 with different lengths can be cut. In addition, when one group gives an alarm, the operation of the rest groups of devices is not influenced.

The automatic pipe cutting machine is provided with a material tray mechanism 2, a pipe conveying mechanism 3 and a pipe cutting mechanism 4, wherein the pipe cutting mechanism 4 finishes continuous pipe cutting under the continuous pipe conveying of the pipe conveying mechanism 3, and automatic control is realized. The upper sensor 382 and the lower sensor 321 of the pipe conveying mechanism 3 are matched with the sensing connecting rod 39 to realize the automatic transmission of the rubber pipe 7 of the pipe conveying mechanism 3. The arrangement of the roller encoder 423 of the pipe cutting mechanism 4 improves the cutting length precision of the rubber pipe 7, simultaneously ensures that the lengths of the two rubber pipes 7 to be cut are consistent, and improves the cutting efficiency and precision of the rubber pipe 7. Moreover, the rubber tube positioning block 424 can be adjusted to adapt to the cutting of rubber tubes 7 with different thicknesses, and meanwhile, the rubber tube 7 can be transversely positioned. The rubber tube pre-pressing mechanism 49 is arranged to press the rubber tube 7 before the rubber tube 7 is cut, so that irregular tangent planes of the rubber tube 7 caused by the movement and displacement of the rubber tube 7 are prevented, and meanwhile, the length precision of the cut rubber tube 7 is ensured.

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

However, the above description is only exemplary of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims (10)

1. The automatic pipe cutting machine is characterized by comprising a workbench, and a material tray mechanism, a pipe conveying mechanism and a pipe cutting mechanism which are sequentially arranged on the workbench, wherein a rubber pipe of the material tray mechanism enters the pipe cutting mechanism for cutting under the conveying of the pipe conveying mechanism.

2. The automatic pipe cutting machine according to claim 1, wherein the tray mechanism comprises a tray support, the tray support is fixed on the upper end surface of the workbench, a tray shaft is connected to the tray support, a material roller is sleeved on the outer periphery of the tray shaft and is rotatably connected with the tray shaft through a thrust ball bearing, trays are further arranged on the tray shafts at two ends of the material roller respectively, the tray inside the tray shaft is fixedly connected with the material roller through a screw, and the tray outside the tray shaft is fixed with the tray shaft through an opening thrust ring.

3. The automatic pipe cutting machine according to claim 2, wherein the upper and lower ends of the tray holder are provided with tray shafts, a tray partition is provided between the upper and lower tray shafts, and the tray partition is fixedly connected to the tray holder.

4. The automatic pipe cutting machine according to claim 1, wherein the pipe feeding mechanism is arranged at the front end of the tray mechanism and comprises a pipe feeding bottom plate fixed at the upper end of the workbench, pipe feeding side brackets are respectively connected to two ends of the pipe feeding bottom plate, a pipe feeding motor is fixedly arranged at the bottom of each pipe feeding side bracket, a lower pipe feeding roller and an upper pipe feeding roller are arranged at the upper part of each pipe feeding side bracket, an output shaft of the pipe feeding motor is in transmission connection with the lower pipe feeding roller through a pipe feeding synchronous belt wheel and a pipe feeding synchronous belt, and the lower pipe feeding roller is in transmission connection with the upper pipe feeding roller through a transmission gear; the pipe conveying side support is further connected with a pipe penetrating pore plate, and the pipe penetrating pore plate is arranged between the material tray mechanism and the pipe conveying mechanism.

5. The automatic pipe cutting machine according to claim 4, wherein two ends of the lower pipe conveying roller are fixedly connected with the pipe conveying side bracket through bearings and bearing seats, two ends of the upper pipe conveying roller are mounted in the rectangular grooves of the two pipe conveying side brackets through bearings and bearing seats, a pipe conveying pressing threaded rod is further arranged at the top end of the pipe conveying side bracket, the lower end of the pipe conveying pressing threaded rod is in threaded connection with the bearing seats at two ends of the upper pipe conveying roller, and the upper pipe conveying roller can move up and down along the rectangular grooves of the pipe conveying side bracket under the action of the pipe conveying pressing threaded rod.

6. The automatic pipe cutting machine according to claim 4, wherein the pipe conveying mechanism further comprises an induction connecting rod base fixedly connected with the workbench, two ends of the induction connecting rod base are rotatably connected with the induction connecting rod through induction connecting rod pin shafts respectively, the other end of the induction connecting rod is connected with a wire pressing wheel, one side of the induction connecting rod base is provided with an upper sensor, the bottom of the pipe conveying side bracket is provided with a lower sensor, and a buffer is further arranged on the workbench between the induction connecting rod base and the pipe conveying side bracket.

7. The automatic pipe cutting machine according to claim 1, wherein the pipe cutting mechanism is arranged at the front end of the pipe feeding mechanism, the pipe cutting mechanism comprises a pipe cutting bottom plate fixed at the upper end of the workbench, pipe cutting side brackets are respectively connected and arranged at two ends of the pipe cutting bottom plate, a stepping motor is fixedly arranged at the bottom of each pipe cutting side bracket, a lower pipe cutting roller and an upper pipe cutting roller are arranged at the upper part of each pipe cutting side bracket, an output shaft of the stepping motor is in transmission connection with the lower pipe cutting roller through a pipe cutting synchronous pulley and a pipe cutting synchronous belt, and the lower pipe cutting roller is in transmission connection with the upper pipe cutting roller through a transmission gear; the pipe cutting device is characterized in that a pipe cutting cylinder support is further arranged at the top of the pipe cutting cylinder support, a pipe cutting cylinder is fixedly arranged on the pipe cutting cylinder support, the piston output end of the pipe cutting cylinder is connected with a pipe cutting movable blade through a pipe cutting cylinder joint, a pipe cutting fixed blade is arranged below the pipe cutting movable blade, and the pipe cutting fixed blade is fixedly connected with the pipe cutting cylinder support through a fixed blade fixing plate.

8. The automatic pipe cutting machine according to claim 7, wherein two ends of the lower pipe cutting roller are fixedly connected with the pipe cutting side brackets through bearings and bearing seats, two ends of the upper pipe cutting roller are mounted in the rectangular grooves of the two pipe cutting side brackets through bearings and bearing seats, a pipe cutting pressing threaded rod is further arranged at the top end of each pipe cutting side bracket, the lower end of the pipe cutting pressing threaded rod is in threaded connection with the bearing seats at the two ends of the upper pipe cutting roller, and the upper pipe cutting roller can move up and down along the rectangular grooves of the pipe cutting side brackets under the action of the pipe cutting pressing threaded rod.

9. The automatic pipe cutting machine according to claim 7, wherein the pipe cutting side bracket is further provided with a roller encoder in a connected manner through a connecting plate, a semicircular rubber pipe positioning block is further sleeved on the outer side of the upper pipe cutting roller, and the rubber pipe positioning block is fixedly connected with a T-shaped block arranged in a sliding groove of the connecting plate through a screw.

10. The automatic pipe cutting machine according to claim 7, wherein the pipe cutting mechanism further comprises a rubber pipe pre-pressing mechanism, the rubber pipe pre-pressing mechanism is provided with a fixed block, the fixed block is fixedly connected with the side surface of the pipe cutting movable blade, a pressing rod is slidably connected in a through hole of the fixed block, the top end of the pressing rod penetrates through the fixed block and is connected with a nut, the bottom end of the pressing rod is connected with a pressing block, and a spring is sleeved on the outer side of the pressing rod between the fixed block and the pressing block.

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