Automatic traction pipe cutting device

Abstract

The invention discloses an automatic traction pipe cutting device, comprising: a material storage mechanism, which has a containing groove, can accommodate the coiled pipe to be cut, and output the pipe to be cut from the material discharge port of the material storage mechanism; a conveying mechanism, which is connected to the material discharge port of the material storage mechanism and can pull the pipe to be cut; a guide mechanism, which has a guide plate, the guide plate is circular, and a plurality of circular holes with different diameters are distributed in a circumferential array, and the pipe to be cut can pass through the circular holes from one side of the guide plate; wherein the conveying mechanism and the guide mechanism stretch the pipe to be cut; a cutter, which is arranged between the guide plate and the conveying mechanism and is located above the circular pipe, a toothed belt wheel, which is arranged between the guide plate and the conveying mechanism, the toothed belt wheel is circular, and has circumferentially distributed square teeth all around, a groove is provided in the middle of the square teeth, and the groove is used to hold the pipe to be cut. The device stretches the two ends of the circular pipe through the conveying mechanism and the conveying pipe, and adopts a cylinder to drive the cutter to cut the circular pipe, and the cutting accuracy is high.

Description

Technical Field

[0001] The invention relates to the field of mechanical cutting, and in particular to an automatic traction pipe cutting device. Background Art

[0002] At present, PA tubes are widely used in the industrial field. At the same time, customers have different requirements for the use of PA tubes, such as length accuracy requirements, end face verticality requirements, external logo markings, etc., which are usually cut by mechanical methods or manually; manually operated tube cutters cut in various forms, such as the sawing action of the tube cutter tool passing through the tube or the successive progressive action of the teeth. Usually, these tube cutting methods result in imperfect cutting, or when cutting the tube, the tube breaks suddenly. Manually operated tube cutters are also difficult for users to be ergonomic. Specifically, users with relatively small hand size or relatively small hand or wrist strength have difficulty in completing tube cutting. The existing mechanical cutting uses the same feed procedure when cutting tubes of different materials, different diameters, and different thicknesses, resulting in poor cutting accuracy, slow cutting speed, low cutting efficiency and unstable quality. Summary of the invention

[0003] The invention designs and develops an automatic pulling pipe cutting device, which stretches the two ends of a round pipe through a conveying mechanism and a conveying pipe, and uses a cylinder to drive a cutter to cut the round pipe, with high cutting accuracy.

[0004] Another object of the present invention is to provide a plurality of circular holes with different diameters on the guide disk so as to cut circular tubes of different sizes.

[0005] The technical solution provided by the present invention is:

[0006] An automatic traction pipe cutting device, comprising:

[0007] A material storage mechanism, which has a receiving groove, capable of receiving the coiled tube to be cut, and outputting the tube to be cut from a material outlet of the material storage mechanism;

[0008] A conveying mechanism, which is connected to the discharge port of the material storage mechanism and can pull the tube to be cut;

[0009] A guide mechanism, which has a guide plate, the guide plate is circular, and has a plurality of circular holes of different diameters distributed in a circumferential array, and the pipe to be cut can pass through the circular holes from one side of the guide plate;

[0010] Wherein, the conveying mechanism and the guiding mechanism stretch the tube to be cut;

[0011] A cutter, which is arranged between the guide plate and the conveying mechanism, is located above the round tube, and is driven by a cylinder to move up and down;

[0012] A toothed belt wheel is arranged between the guide plate and the conveying mechanism. The toothed belt wheel is circular and has circumferentially distributed square teeth. The middle of the square teeth has a groove, and the groove is used to hold the tube to be cut.

[0013] Preferably, the conveying mechanism comprises:

[0014] Conveyor rack;

[0015] A first conveyor belt, which is detachably arranged on the conveyor frame;

[0016] The second conveyor belt is detachably arranged on the conveyor frame and is located above the first conveyor belt. The first conveyor belt and the second conveyor belt are arranged in parallel and have a gap therebetween.

[0017] Preferably, it also includes:

[0018] A slideway is fixed on the conveying frame, and a slider is provided on one side of the second conveying belt. The slider can slide in the slideway to adjust the interval between the first conveying belt and the second conveying belt.

[0019] Preferably, it also includes a downward pressure cylinder, which is arranged above the second conveyor belt and connected to the slideway, and can push the slider to slide up and down.

[0020] Preferably, it further comprises a traction mechanism, which is arranged between the conveying mechanism and the material storage mechanism, and comprises:

[0021] Traction frame;

[0022] A third conveyor belt, which is detachably arranged on the traction frame;

[0023] A support plate fixed on the traction frame;

[0024] A top plate is slidably arranged on the traction frame, and the distance between the top plate and the supporting plate is adjusted by pushing a cylinder.

[0025] Preferably, the material storage mechanism comprises:

[0026] A material rack, which is a square box body with an open top, and a feed port is provided on one side of the square box body;

[0027] A hand wheel shaft, which is rotatably supported in the material rack;

[0028] A first bevel gear, which is sleeved on the handwheel shaft and can rotate with the handwheel shaft;

[0029] A plurality of linear slide rails, which are cylindrical and have external threads on the surface, one end of the linear slide rail has a second bevel gear, the other end of the linear slide rail is fixed on the material rack, and the second bevel gear is meshed with the first bevel gear;

[0030] The material blocking frame has a circular hole at the bottom thereof, the circular hole has an internal thread, and the material blocking frame is sleeved on the linear slide rail and can slide along the linear slide rail.

[0031] Preferably, the material storage mechanism comprises:

[0032] A material rack, which is a square box body with an open top, and a feed port is provided on one side of the square box body;

[0033] A hand wheel shaft supported in the material rack;

[0034] A handwheel having a cylindrical tube at its center, the cylindrical tube being sleeved on the handwheel shaft and being able to slide up and down along the handwheel shaft;

[0035] A plurality of linear slide rails fixed in the square box;

[0036] A plurality of first brackets, one end of which can slide along the cylindrical tube, and the other end of which is connected to a slider, and the slider can slide along the linear slide rail;

[0037] A plurality of second brackets, one end of which is hinged to the bottom of the hand wheel and the other end is sleeved on the middle part of the first bracket;

[0038] The material blocking frame is arranged on the sliding block and can slide along with the sliding block.

[0039] Preferably, it further comprises a plurality of material transfer mechanisms, which are arranged between the conveying mechanism and the material rack, and the material transfer mechanisms include:

[0040] Column support;

[0041] The conveying wheel is circular and has a groove, and the conveying wheel can slide up and down along the columnar support.

[0042] Preferably, it further comprises an interval conveying mechanism, which is arranged on one side of the conveying mechanism, and the interval conveying mechanism comprises:

[0043] A fixed frame, which is of "n" type;

[0044] A roller shaft, which is detachably arranged at an opening position of the fixing frame;

[0045] The roller is cylindrical and is sleeved on the roller shaft and can rotate around the roller shaft.

[0046] Beneficial effects of the present invention

[0047] The present invention designs and develops an automatic traction pipe cutting device, which stretches the two ends of a round pipe through a conveying mechanism and a conveying pipe, and adopts a cylinder to drive a cutter to cut the round pipe, with high cutting accuracy. A plurality of circular holes with different diameters are arranged on the guide plate, so that round pipes of different sizes can be cut. The PA pipe can be automatically cut during the working process, and the requirements of fast output, fixed-length cutting and end face verticality can be guaranteed at the same time. It adopts a servo motor drive, a synchronous belt and a synchronous pulley to reciprocate, etc., and the cutting length is controlled by a PLC. The whole process is automatically completed, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic structural diagram of the automatic traction pipe cutting device of the present invention.

[0049] Figure 2 It is a schematic diagram of the structure of the cutting mechanism of the present invention.

[0050] Figure 3 It is a schematic diagram of the installation of the cutting mechanism of the present invention.

[0051] Figure 4 It is a schematic structural diagram of the guide plate described in the present invention.

[0052] Figure 5 It is a schematic structural diagram of the cutter described in the present invention.

[0053] Figure 6 It is a schematic diagram of the structure of the conveying mechanism described in the present invention.

[0054] Figure 7 It is a structural schematic diagram of the traction mechanism described in the present invention.

[0055] Figure 8 It is a structural schematic diagram of the material storage rack described in the present invention.

[0056] Fig. 9 It is a top view of the material storage rack described in the present invention.

[0057] Fig.10 It is a schematic structural diagram of the linear slide rail mechanism described in the present invention.

[0058] Fig.11 It is a structural schematic diagram of another embodiment of the linear slide rail mechanism described in the present invention.

[0059] Fig.12 It is a structural schematic diagram of the material conveying mechanism described in the present invention.

[0060] Fig.13 It is a schematic structural diagram of the interval conveying mechanism described in the present invention. DETAILED DESCRIPTION

[0061] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0062] like Figure 1 As shown, the automatic traction pipe cutting device provided by the present invention includes: a material storage rack 100, a material transmission mechanism 200, a first traction mechanism 300, an operating device 400 and a cutting mechanism 500.

[0063] like Figure 2-3 As shown, the cutting mechanism 500 includes: a guide frame 510 , a guide plate 520 , a conveying mechanism 530 , a conveying pipe 540 and a cutter 550 .

[0064] Among them, the guide frame 510 is a frame body, which has a back plate and a guide plate 520; it is circular, and has multiple circular holes of different diameters distributed in a circular array, and the guide plate can be rotatably supported on the back plate of the guide frame 510; the conveying mechanism 530 is arranged on one side of the guide plate 520, and is used to convey the round tube into the guide plate 520; the conveying pipe 540 is arranged on the other side of the guide plate 520, located below the guide plate 520, and is used to stretch the round tube to be cut; the cutter 550 is arranged between the guide plate 520 and the conveying mechanism 530, and is located above the round tube to be cut, and is driven up and down by the cylinder 551.

[0065] like Figure 4 , 5 As shown, the toothed belt wheel 560 is disposed between the guide plate 520 and the conveying mechanism 530. The toothed belt wheel 560 is circular and has circumferentially distributed square teeth. The middle of the square teeth has a groove for holding the round tube to be cut.

[0066] like Figure 6 As shown, the conveying mechanism 530 includes: a conveying frame 531, a first conveying belt 532, a second conveying belt 533 and a slide 534. The conveying frame 531 has a back plate, and the first conveying belt 532 is detachably fixed on the back plate of the conveying frame 531 by bolts; the second conveying belt 533 is slidably arranged on the back plate of the conveying frame 531 through a slide, and is located above the first conveying belt 532. The first conveying belt 532 and the second conveying belt 533 are arranged in parallel and have a certain interval. The slide 534 is fixed on the conveying frame 531, and a slider is provided on one side of the second conveying belt 533. The slider can slide in the slide 534, thereby adjusting the interval between the first conveying belt 532 and the second conveying belt 533. The downward pressure cylinder 535 is fixed above the second conveying belt 533, connected to the slide, and can push the slider to slide up and down, thereby adjusting the interval between the first conveying belt 532 and the second conveying belt 533.

[0067] When in use, the round tube to be cut is placed on the second conveyor belt 533, and the downward pressure cylinder 535 is fixed above the second conveyor belt 533 and connected to the slideway, which can push the slider to slide up and down, thereby adjusting the interval between the first conveyor belt 532 and the second conveyor belt 533, and the round tube to be cut is restrained between the first conveyor belt 532 and the second conveyor belt 533 to prevent the round tube from slipping out.

[0068] like Figure 7 As shown, the traction mechanism 600 is arranged on one side of the conveying mechanism, and includes: a traction frame 610, a third conveyor belt 620, a support plate 630 and a top plate 640. The third conveyor belt 620 is detachably arranged on the traction frame 610 by bolts; the support plate 630 is fixed on the traction frame 610; the top plate 640 is slidably arranged on the traction frame 610, and the distance between the top plate 640 and the support plate 630 is adjusted by pushing the cylinder.

[0069] As a preference, the first conveyor belt 532, the second conveyor belt 533 and the third conveyor belt 530 are all pulled by synchronous pulleys.

[0070] like Figure 8-9 As shown, the material storage rack 100 includes: a material rack 110, a handwheel shaft 120 and a linear slide mechanism. The material rack 110 is a square box body with an open top, a feed port is provided on one side of the square box body, and a movable door is provided at the feed port. The handwheel shaft 120 is rotatably supported in the material rack 110.

[0071] like Fig.10 As shown, the first bevel gear 131 of the linear slide mechanism is sleeved on the handwheel shaft 120 and can rotate with the handwheel shaft 120; the plurality of linear slides 132 are cylindrical, with external threads on the surface, one end of the linear slide 132 has a second bevel gear 133, the other end of the linear slide 132 is fixed on the material rack 110, and the second bevel gear 133 is meshed with the first bevel gear 131; the bottom of the material stopper 134 has a round hole with internal threads, the material stopper 134 is sleeved on the linear slide 132, and can slide along the linear slide 132. As a preferred embodiment, one side of the material rack 110 has a discharge port 138.

[0072] When in use, the round tube to be cut is sleeved on the linear slide rail mechanism, and the hand wheel is turned. The first bevel gear 131 drives the hand wheel shaft 120 to rotate, and the second bevel gear 133 rotates synchronously with the first bevel gear 131. The linear slide rail 132 rotates, and the material blocking frame 134 slides along the linear slide rail 132. The material blocking frame 134 supports the coiled round tube to be cut, and puts one end of the round tube to be cut into the discharge port.

[0073] like Fig.11As shown, in another embodiment, the linear slide mechanism includes: a handwheel shaft 120, which is supported in the material rack 110; a handwheel 141 has a cylindrical tube 141a in the center, the cylindrical tube 141a is sleeved on the handwheel shaft 120, and can slide up and down along the handwheel shaft 120; a plurality of linear slides 132 are fixed in the square box body; a plurality of first brackets 142 can slide along the cylindrical tube 141a at one end, and are connected to a slider 143 at the other end, and the slider 143 can slide along the linear slide 132; a plurality of second brackets 144 are hinged to the bottom of the handwheel 141 at one end, and are sleeved in the middle of the first bracket 142 at the other end; the material blocking rack 134 is fixedly set on the slider 143, and can slide with the slider 143.

[0074] When in use, the circular tube to be cut is placed on the linear slide mechanism, the hand wheel 141 is pushed to slide downward, the cylindrical circular tube 141a presses one end of the first bracket 142 to slide along the cylindrical circular tube 141a, the other end of the second bracket slides along the first bracket 142 toward the direction of the cylindrical circular tube 142a, and the other end of the first bracket 142a pushes the slider 143 to slide toward the square away from the cylindrical circular tube 141a, the material blocking frame 134 supports the coiled circular tube to be cut, and puts one end of the circular tube to be cut into the discharge port 138.

[0075] like Fig.12 As shown, a plurality of material transfer mechanisms 200 are arranged between the conveying mechanism 530 and the material storage rack 100 , and the material transfer mechanism 200 includes: a columnar bracket 210 ; a conveying wheel 220 which is circular and has a groove, and the conveying wheel 220 can slide up and down along the columnar bracket 210 .

[0076] like Fig.13 As shown, in another embodiment, it further includes: an interval conveying mechanism 250 is arranged on one side of the conveying mechanism 530, which can allow the round tube to be cut to pass through the middle of the conveying mechanism 530. The interval conveying mechanism includes: a fixing frame 251 which is "n"-shaped; a roller shaft 252 which is detachably arranged at the opening position of the fixing frame; and a roller 253 which is cylindrical, sleeved on the roller shaft 252, and can rotate around the roller shaft 252.

[0077] The pipe to be cut passes through multiple material transfer mechanisms 200 and traction mechanisms 600 and then enters the conveying mechanism 530. The servo motor drives the synchronous pulley to rotate, so that the synchronous belt and the synchronous pulley are driven forward. At the same time, the downward pressure cylinder is pressed, and the relative displacement of the downward pressure cylinder can be monitored by the displacement sensor.

[0078] The operator opens the material rack door, rotates the handwheel to drive the lead screw to rotate, and drives the linear slide rail 132 to move forward and backward through the rotation of the handwheel, and the material blocking rack 134 shrinks. The operator places the material pipe at the material storage port, and opens the material blocking rack 134 by optional handwheel, and manually pulls the material into the conveying port and into the material transfer mechanism 200. At the same time, the brake increases the resistance to ensure the traction force of the conveying pipe.

[0079] The PA tube to be cut passes through the conveying wheel of the traction mechanism 600 and enters the conveying mechanism 530. The guide plate 520 is rotated to convey the tubes of different diameters. At the same time, the downward pressure cylinder drives the roller to compact the tube and convey it to the traction mechanism 3. The traction motor drives the synchronous pulley to rotate, so that the second conveyor belt 533 and the first conveyor belt 532 and the synchronous pulley are driven forward. At the same time, the downward pressure cylinder is compacted, and the relative displacement of the downward pressure cylinder can be monitored by the displacement sensor.

[0080] The transmission motor drives the synchronous pulley and the synchronous toothed belt on the conveyor belt to rotate, so that the tube enters the guide disk 520. There are 16 kinds of guide tubes, and different tube specifications are placed in different guide tubes. The PLC controls the length of the tube. When a certain length is reached, the cutter cylinder drives the cutter 550 to extend for cutting. After the cutting is completed, the cutter 550 cylinder drives the cutter to retract. The cut tube enters the inkjet printing mechanism through the conveyor tube. The motor drives the pulley and the lead screw to adjust the position of the inkjet terminal for coding. Then the tube enters the marking mechanism. The marking motor drives the synchronous belt and the synchronous pulley to rotate and drives the lead screw to move back and forth up and down for marking. After marking is completed, it is placed in the long conveyor tube, cut, and placed in a qualified material box.

[0081] The present invention designs and develops an automatic traction pipe cutting device, which stretches the two ends of a round pipe through a conveying mechanism and a conveying pipe, and adopts a cylinder to drive a cutter to cut the round pipe, with high cutting accuracy. A plurality of circular holes with different diameters are arranged on the guide plate, so that round pipes of different sizes can be cut. The PA pipe can be automatically cut during the working process, and the requirements of fast output, fixed-length cutting and end face verticality can be guaranteed at the same time. It adopts a servo motor drive, a synchronous belt and a synchronous pulley to reciprocate, etc., and the cutting length is controlled by a PLC. The whole process is automatically completed, thereby improving production efficiency.

[0082] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An automatic traction pipe cutting device, characterized in that: include: A material storage mechanism, which has a receiving groove, capable of receiving the coiled tube to be cut, and outputting the tube to be cut from a material outlet of the material storage mechanism; A conveying mechanism, which is connected to the discharge port of the material storage mechanism and can pull the tube to be cut; A guide mechanism, which has a guide plate, the guide plate is circular, and has a plurality of circular holes of different diameters distributed in a circumferential array, and the pipe to be cut can pass through the circular holes from one side of the guide plate; A conveying pipe, which is arranged on the other side of the guide plate and below the guide plate, and is used to stretch the round tube to be cut; Wherein, the conveying mechanism and the conveying pipe stretch the pipe to be cut; A cutter, which is arranged between the guide plate and the conveying mechanism, is located above the round tube, and is driven by a cylinder to move up and down; A toothed belt wheel, which is arranged between the guide plate and the conveying mechanism, the toothed belt wheel is circular and has circumferentially distributed square teeth around it, the middle of the square teeth has a groove, and the groove is used to hold the tube to be cut; The conveying mechanism comprises: Conveyor rack; A first conveyor belt, which is detachably arranged on the conveyor frame; A second conveyor belt, which is detachably arranged on the conveyor frame and is located above the first conveyor belt, wherein the first conveyor belt and the second conveyor belt are arranged in parallel and have a gap therebetween; Also includes: A slideway fixed on the conveyor frame, wherein one side of the second conveyor belt is provided with a slider, and the slider can slide in the slideway to adjust the interval between the first conveyor belt and the second conveyor belt; It also includes a downward pressure cylinder, which is arranged above the second conveyor belt, connected to the slideway, and can push the slide block to slide up and down; It also includes a traction mechanism, which is arranged between the conveying mechanism and the material storage mechanism, and includes: Traction frame; A third conveyor belt, which is detachably arranged on the traction frame; A support plate fixed on the traction frame; A top plate is slidably arranged on the traction frame, and the distance between the top plate and the supporting plate is adjusted by pushing a cylinder.

2. The automatic traction pipe cutting device according to claim 1, characterized in that: The material storage mechanism comprises: A material rack, which is a square box body with an open top, and a feed port is provided on one side of the square box body; A hand wheel shaft, which is rotatably supported in the material rack; A first bevel gear, which is sleeved on the handwheel shaft and can rotate with the handwheel shaft; A plurality of linear slide rails, which are cylindrical and have external threads on the surface, one end of the linear slide rail has a second bevel gear, the other end of the linear slide rail is fixed on the material rack, and the second bevel gear is meshed with the first bevel gear; The material blocking frame has a circular hole at the bottom thereof, the circular hole has an internal thread, and the material blocking frame is sleeved on the linear slide rail and can slide along the linear slide rail.

3. The automatic pulling pipe cutting device according to claim 2, characterized in that: The material storage mechanism comprises: A material rack, which is a square box body with an open top, and a feed port is provided on one side of the square box body; A hand wheel shaft supported in the material rack; A handwheel having a cylindrical tube at its center, the cylindrical tube being sleeved on the handwheel shaft and being able to slide up and down along the handwheel shaft; A plurality of linear slide rails fixed in the square box; A plurality of first brackets, one end of which can slide along the cylindrical tube, and the other end of which is connected to a slider, and the slider can slide along the linear slide rail; A plurality of second brackets, one end of which is hinged to the bottom of the hand wheel and the other end is sleeved on the middle part of the first bracket; The material blocking frame is arranged on the sliding block and can slide along with the sliding block.

4. The automatic pulling pipe cutting device according to claim 3, characterized in that: It also includes a plurality of material transfer mechanisms, which are arranged between the conveying mechanism and the material rack, and the material transfer mechanism includes: Column support; The conveying wheel is circular and has a groove, and the conveying wheel can slide up and down along the columnar support.

5. The automatic pulling pipe cutting device according to claim 4, characterized in that: It also includes an interval conveying mechanism, which is arranged on one side of the conveying mechanism, and the interval conveying mechanism includes: A fixed frame, which is of "n" type; A roller shaft, which is detachably arranged at an opening position of the fixing frame; The roller is cylindrical and is sleeved on the roller shaft and can rotate around the roller shaft.

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