CN113320115A - Plastic pipe production line and production method - Google Patents
Plastic pipe production line and production method Download PDFInfo
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- CN113320115A CN113320115A CN202110592094.6A CN202110592094A CN113320115A CN 113320115 A CN113320115 A CN 113320115A CN 202110592094 A CN202110592094 A CN 202110592094A CN 113320115 A CN113320115 A CN 113320115A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 229920003023 plastic Polymers 0.000 title claims abstract description 26
- 239000004033 plastic Substances 0.000 title claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims abstract description 101
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000001125 extrusion Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 11
- 210000000078 claw Anatomy 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 13
- 238000013461 design Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- -1 Polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229920001155 polypropylene Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
- B26D1/58—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is mounted on a movable arm or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/355—Conveyors for extruded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D2007/013—Means for holding or positioning work the work being tubes, rods or logs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to a plastic pipe production line and a production method, comprising a plastic extruder, an extrusion die, a vacuum setting box, a water cooler, a tractor, a fixed-length cutting device and a pipe collecting device; the fixed-length cutting device comprises a sensor, a controller and a base, wherein at least one clamping follow-up cutting mechanism is arranged on the base, the clamping follow-up cutting mechanism is connected with a reset traction mechanism for resetting the clamping follow-up cutting mechanism, the sensor is used for detecting the cutting length of the pipe and transmitting a detection signal to the controller, and the controller gives an instruction to the clamping follow-up cutting mechanism to cut the pipe. The pipe cutting machine has the advantages of reasonable structural design, accurate fixed-length cutting, capability of simultaneously processing pipes with different lengths, high processing precision, high processing efficiency and the like.
Description
The technical field is as follows:
the invention relates to the technical field of automatic processing of plastic pipes, in particular to a plastic pipe production line and a production method.
Background art:
the plastic pipe is used as an important component of chemical building materials, is widely accepted by users due to the advantages of excellent performance, sanitation, environmental protection, low consumption and the like, and mainly comprises a UPVC drain pipe, a UPVC water supply pipe, an aluminum-plastic composite pipe, a Polyethylene (PE) water supply pipe and a polypropylene PPR hot water pipe.
The existing plastic pipe production process mainly comprises the steps of material preparation, material mixing, extrusion, sizing, cooling, marking, traction, cutting, collection and the like, the whole process is relatively mature, and the production of various pipes can be basically met. However, in the practical application process, it is still found that a deep technical problem is to be further researched and solved in a technical structure urgently, for example, accurate fixed-length cutting cannot be realized during cutting of the existing pipe, so that the later-stage pipe needs to be refined during installation, especially, when a plurality of pipes are required to be connected in series, machining errors are accumulated, and finally the whole length of the pipe cannot meet the design requirement. And if the existing pipe production line can only process pipes with one length at a time, the simultaneous processing of pipes with different lengths and models cannot be realized, and pipes with different lengths are often required to be processed in actual production. The existence of the problems seriously restricts the processing precision and the processing efficiency of the pipe production line.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
The invention content is as follows:
the invention aims to solve the problems in the prior art, and provides a plastic pipe production line and a production method, which have the advantages of reasonable structural design, accurate fixed-length cutting, capability of simultaneously processing pipes with different lengths, high processing precision, high processing efficiency and the like.
The invention adopts the following technical scheme to realize the purpose:
a plastic pipe production line comprises a plastic extruder, an extrusion die, a vacuum shaping box, a water cooler, a tractor, a fixed-length cutting device and a pipe collecting device;
the fixed-length cutting device comprises a sensor, a controller and a base, wherein at least one clamping follow-up cutting mechanism is arranged on the base and is connected with a reset traction mechanism for resetting the clamping follow-up cutting mechanism, the sensor is used for detecting the cutting length of the pipe and transmitting a detection signal to the controller, and the controller gives an instruction to the clamping follow-up cutting mechanism to cut the pipe;
the clamping follow-up cutting mechanism comprises a guide rail arranged along the advancing direction of the pipe, a moving seat is arranged on the guide rail, an axial clamping device, a centrifugal cutting machine, a radial clamping device and a pipe leading-out plate are arranged on the moving seat, the axial clamping device comprises an axial clamping cylinder and an axial clamp, a through hole for the pipe to pass through is formed in the center of the axial clamp, one end of the axial clamp is connected with the axial clamping cylinder, and a plurality of elastic clamping jaws are arranged at the other end of the axial clamp along the circumferential direction of the axial clamp; the centrifugal cutting machine comprises a special-shaped inner sleeve arranged on the movable seat, the special-shaped inner sleeve is superposed with the central line of the axial clamp, the special-shaped inner sleeve comprises a large cylindrical section, a bending section and a small cylindrical section which are integrally formed, the elastic clamping jaw is inserted into the special-shaped inner sleeve, the elastic claw is pressed inwards to clamp the pipe under the action of the bending section, the bearing is arranged on the outer wall of the special-shaped inner sleeve, the bearing is provided with a special-shaped belt wheel, the special-shaped belt wheel is provided with a centrifugal disc, the centrifugal disc is designed in a split manner, the outer wall of the centrifugal disc is provided with a return spring, the center of the end part of the special-shaped belt wheel is symmetrically provided with two cutter seats, the middle part of the cutter holder is rotatably arranged on the special-shaped belt wheel, one end of the cutter holder is connected with the end part of the centrifugal disc, the other end of the cutter holder is provided with a round cutter, the special-shaped belt wheel is connected with a motor belt wheel through a belt, and the motor belt wheel is connected with a motor; the radial clamping device comprises a radial clamping cylinder arranged on a movable seat, a semicircular clamping block A is arranged on the radial clamping cylinder, and a semicircular clamping block B matched with the semicircular clamping block A to clamp the pipe is arranged on the movable seat;
the resetting traction mechanism comprises a resetting traction rope and a pulley, the pulley is arranged on the base, one end of the resetting traction rope is connected with the moving base, the other end of the resetting traction rope bypasses the pulley to be provided with a balancing weight, the balancing weight drives the clamping follow-up cutting mechanism to reset, and a buffer matched with the moving base for use is arranged on the base.
The pipe collecting device comprises a stacking frame, a V-shaped guide plate for guiding the pipe is arranged above the stacking frame, an arc guide plate for enabling the pipe to be separated from the V-shaped guide plate is arranged at the tail end of the V-shaped guide plate, the stacking frame is used for collecting the pipe falling off from the V-shaped guide plate, a long rod is arranged above the stacking frame, a sliding seat is arranged on the long rod, a locking bolt is arranged on the sliding seat, and a sensor is arranged below the sliding seat.
The stacking frame comprises a plurality of U-shaped frames which are arranged at intervals along the advancing direction of the pipe, the U-shaped frames are connected through connecting rods, a cross beam is arranged on each U-shaped frame, the V-shaped guide plate and the long rod are respectively arranged on the cross beam, and a stacking rod is obliquely arranged on each U-shaped frame.
The axial clamp comprises an integrally formed flange, a guide cylinder section, a clamping cylinder section and an inward bending section, the flange is connected with an axial clamping cylinder, a guide sleeve which is matched and guided with the guide cylinder section is arranged on the moving seat, a plurality of grooves are formed in the clamping cylinder section and the inward bending section at uniform intervals along the circumferential direction, and the elastic clamping jaws are formed between every two adjacent grooves.
The axial clamp is disposed in an upstream direction of the centrifugal cutter, and the radial clamp is disposed in a downstream direction of the centrifugal cutter.
The extrusion die is a four-out die, the corresponding base is provided with four clamping follow-up cutting mechanisms at intervals along the direction perpendicular to the advancing direction of the pipes, the upper part of the stacking frame is provided with four V-shaped guide plates and four sensors at intervals along the direction perpendicular to the advancing direction of the pipes, and one clamping follow-up cutting mechanism corresponds to one V-shaped guide plate and one sensor.
A plastic pipe production method comprises the following steps: the traction machine draws the pipe to be sent into the fixed-length cutting device, the pipe sequentially passes through the axial clamp, the special-shaped inner sleeve and the semicircular clamping block B and enters the V-direction guide plate through the pipe guide plate, a signal is sent to the controller when the sensor detects the pipe, the controller sends instructions to the axial clamping cylinder, the radial clamping cylinder and the motor, the axial clamping cylinder acts to push the axial clamp to be inserted into the special-shaped inner sleeve, the elastic clamping claws on the axial clamp inwards compress and clamp the pipe under the action of the bending section of the special-shaped inner sleeve, meanwhile, the radial clamping cylinder pushes the semicircular clamping block A to move downwards to be matched with the semicircular clamping block B to clamp the pipe, the pipe and the movable seat are locked together under the combined action of the axial clamp, the movable seat and the pipe, the motor drives the special-shaped belt wheel to rotate through a belt, and the special-shaped belt wheel rotates to enable the centrifugal disc to do centrifugal motion, centrifugal disc centrifugal motion drive blade holder is rotatory, and the blade holder is rotatory to be driven the circular cutter on it and to the motion of tubular product direction cut tubular product, and the back is accomplished in the tubular product cutting, and the motor stall, centrifugal disc reset under reset spring's effect, and axial die clamping cylinder and radial die clamping cylinder reset, and tubular product breaks away from with removing the seat, drives under the effect of balancing weight this moment and removes the seat and reset, prepares for tubular product cutting next time.
By adopting the technical scheme, the invention can bring the following beneficial effects:
(1) this application research and development follow-up cutting technique realizes tubular product and cutting equipment and moves together, and tubular product and cutting equipment are static relatively, and then realize carrying out the tubular product cutting under the relative static condition, not only improve cutting accuracy, can not influence tubular product production efficiency moreover. The follow-up cutting technology is verified in two points, namely how to firmly lock the pipe and the cutting device together and separate the pipe and the cutting device quickly, and how to reset the cutting device. The clamping is firm and reliable by adopting a double-clamping mode, the axial clamp is matched with the special-shaped inner sleeve for axial clamping, the semicircular clamping block A and the semicircular clamping block B are matched for radial clamping, the whole clamping is firm and reliable, and clamping and loosening are switched by the air cylinder; the cutting device is reset by adopting the structural forms of the balancing weight, the pulley and the reset traction rope, and the cutting device has the advantages of low cost, reliable operation and the like. (2) The position of sensor can be adjusted, and then can change tubular product cutting length, and it is very convenient nimble to use, presss from both sides tight follow-up cutting mechanism, V type deflector and sensor through the extrusion tooling who designs the difference and the increase that corresponds moreover, can realize multichannel fixed length cutting simultaneously, and cutting length can be different, satisfies various processing demands.
Description of the drawings:
FIG. 1 is a schematic structural view of a fixed-length cutting device and a tube collecting device according to the present invention;
FIG. 2 is a schematic view of a fixed-length cutting apparatus according to the present invention;
FIG. 3 is a schematic structural view of a clamping follower cutting mechanism of the present invention;
FIG. 4 is a schematic view of another aspect of the clamping and servo-cutting mechanism of the present invention;
FIG. 5 is a side view of the centrifugal cutter of the present invention;
FIG. 6 is a schematic view of the centrifugal cutting machine of the present invention with the cutting assembly omitted;
FIG. 7 is a sectional view taken along line A-A of FIG. 6;
FIG. 8 is a schematic structural view of the axial clamp of the present invention prior to being unslotted;
FIG. 9 is a schematic view of the construction of the axial clamp of the present invention;
FIG. 10 is a schematic structural view of the special-shaped inner sleeve of the present invention;
FIG. 11 is a schematic view of the tube collecting device according to the present invention;
FIG. 12 is a block flow diagram of a tubing production line of the present invention;
in the figure, 1, a sensor, 2, a controller, 3, a base, 4, a clamping follow-up cutting mechanism, 401, a guide rail, 402, a moving seat, 403, an axial clamper, 4031, an axial clamping cylinder, 4032, an axial clamp, 40321, a flange, 40322, a guide cylinder section, 40323, a clamping cylinder section, 40324, an inward bending section, 40326, a slot, 404, a centrifugal cutting machine, 4041, a special-shaped inner sleeve, 40411, a large cylinder section, 40412, a bending section, 40413, a small cylinder section, 4042, a bearing, 4043, a special-shaped pulley, 4044, a centrifugal disc, 4045, a reset spring, 4046, a knife holder, 4047, a circular cutter, 4048, a belt, 4049, a motor pulley, 4050, a motor, a radial clamper, 40406, a radial clamping cylinder, 4062, a semicircular clamping block A, 4063, a semicircular clamping block B, 407, a pipe, a guide plate, 408, a guide sleeve, 5, a traction mechanism, a reset rope, 502, a reset rope, a guide groove, and a guide groove, a guide groove, and a guide groove, and a guide groove, and a guide groove, the device comprises a pulley, 503, a balancing weight, 6, a pipe collecting device, 601, a stacking frame, 6011, a U-shaped frame, 6012, a connecting rod, 6013, a cross beam, 6014, a stacking rod, 602, a V-shaped guide plate, 603, an arc guide plate, 604, a long rod, 605, a sliding seat, 606, a locking bolt, 7, a plastic extruder, 8, an extrusion die, 9, a vacuum shaping box, 10, a water cooler, 11, a traction machine, 12, a fixed-length cutting device, 13 and a pipe.
The specific implementation mode is as follows:
in order to more clearly explain the overall concept of the invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
In the present invention, the terms "upstream", "downstream", "middle", "front", "rear", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the location of the indicated technical feature.
In the present invention, unless otherwise expressly stated or limited, the terms "provided", "disposed", "connected", "communicating", and the like are to be construed broadly, e.g., "provided" and "disposed" may be fixedly attached, detachably attached, or integrally attached; "connected" may be directly connected or may be connected through an intermediate medium. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1-12, a plastic pipe production line comprises a plastic extruder 7, an extrusion die 8, a vacuum shaping box 9, a water cooler 10, a tractor 11, a fixed-length cutting device and a pipe collecting device 6; the plastic extruder 7, the extrusion die 8, the vacuum shaping box 9, the water cooler 10 and the tractor 11 are directly manufactured by the prior art,
the fixed-length cutting device comprises a sensor 1, a controller 2 and a base 3, wherein at least one clamping follow-up cutting mechanism 4 is arranged on the base 3, the clamping follow-up cutting mechanism 4 is connected with a reset traction mechanism 5 for resetting the clamping follow-up cutting mechanism, the sensor 1 is used for detecting the cutting length of the pipe 13 and transmitting a detection signal to the controller 2, and the controller 2 gives an instruction to the clamping follow-up cutting mechanism 4 to cut the pipe 13;
the clamping follow-up cutting mechanism 4 comprises a guide rail 401 arranged along the advancing direction of the pipe 13, a moving seat 402 is arranged on the guide rail 401, an axial clamp 403, a centrifugal cutting machine 404, a radial clamp 406 and a pipe guide-out plate 407 are arranged on the moving seat 402, the axial clamp 403 comprises an axial clamping cylinder 4031 and an axial clamp 4032, a through hole 4033 for the pipe 13 to pass through is arranged in the center of the axial clamp 4032, one end of the axial clamp 4032 is connected with the axial clamping cylinder 4031, and a plurality of elastic clamping jaws 4033 are arranged at the other end of the axial clamp 4032 along the circumferential direction of the axial clamp 4031; the centrifugal cutting machine 404 comprises a special-shaped inner sleeve 4041 arranged on the moving seat 402, the special-shaped inner sleeve 4041 is overlapped with the central line of the axial clamp 4032, the special-shaped inner sleeve 4041 comprises a large cylinder section 40411, a bending section 40412 and a small cylinder section 40413 which are integrally formed, the elastic claw 4033 is inserted into the special-shaped inner sleeve 4041, the elastic claw 4033 inwardly compresses and clamps the pipe 13 under the action of the bending section 40412, a bearing 4042 is arranged on the outer wall of the special-shaped inner sleeve 4041, a special-shaped belt wheel 4043 is arranged on the bearing 4042, a centrifugal disc 4044 is arranged on the special-shaped belt wheel 4043, the centrifugal disc 4044 is designed in a split manner, a return spring 4045 is arranged on the outer wall of the centrifugal disc 4044, two tool holders 4046 are symmetrically arranged at the center of the end part of the special-shaped belt wheel 4043, the middle part of the tool holder 4046 is rotatably arranged on the special-shaped belt wheel 4043, one end part of the tool holder 4046 is connected with the end part of the centrifugal disc 4044, the other end part is provided with a circular cutting knife 47, the special-shaped belt wheel 4043 is connected with a motor 4049 through a belt 4048, the motor belt wheel 4049 is connected with a motor 4050; the radial clamping device 406 comprises a radial clamping cylinder 4061 arranged on the moving seat 402, a semicircular clamping block A4062 is arranged on the radial clamping cylinder 4061, and a semicircular clamping block B4063 matched with the semicircular clamping block A4062 to clamp the pipe 13 is arranged on the moving seat 402;
the reset traction mechanism 5 comprises a reset traction rope 501 and a pulley 502, the pulley 502 is arranged on the machine base 3, one end of the reset traction rope 501 is connected with the movable base 402, the other end of the reset traction rope is provided with a balancing weight 503 by bypassing the pulley 502, the balancing weight 503 drives the clamping follow-up cutting mechanism 4 to reset, and a buffer matched with the movable base 402 for use is arranged on the machine base 3. This application research and development follow-up cutting technique realizes tubular product 13 and cutting equipment to move together, and tubular product 13 is static relatively with cutting equipment, and then realizes carrying out tubular product 13 cutting under the relatively static condition, not only improves cutting accuracy, can not influence tubular product 13 production efficiency moreover. The verification of the follow-up cutting technique is based on two points, namely how the pipe 13 and the cutting device are firmly locked together and can be quickly separated, and how the cutting device is reset. The clamping is firm and reliable by adopting a double-clamping mode, the axial clamp 4032 is matched with the special-shaped inner sleeve 4041 for axial clamping, the semicircular clamping block A4062 and the semicircular clamping block B4063 are matched for radial clamping, the whole clamping is firm and reliable, and the clamping and the loosening are switched by an air cylinder; the cutting device is reset by adopting the structural form of the balancing weight 503, the pulley 502 and the reset traction rope 501, and the cutting device has the advantages of low cost, reliable operation and the like. The position of sensor 1 can be adjusted, and then can change 13 cutting length of tubular product, and it is very convenient nimble to use, presss from both sides tight follow-up cutting mechanism 4, V type deflector 602 and sensor 1 through the extrusion tooling 8 of design difference and the increase that corresponds moreover, can realize multichannel fixed length cutting simultaneously, and cutting length can be different, satisfies various processing demands.
The pipe collecting device 6 comprises a stacking frame 601, a V-shaped guide plate 602 for guiding the pipe 13 is arranged above the stacking frame 601, an arc-shaped guide plate 603 for enabling the pipe 13 to be separated from the V-shaped guide plate 602 is arranged at the tail end of the V-shaped guide plate 602, the stacking frame 601 is used for collecting the pipe 12 falling off from the V-shaped guide plate 602, a long rod 604 is arranged above the stacking frame 601, a sliding seat 605 is arranged on the long rod 604, a locking bolt 606 is arranged on the sliding seat 605, and the sensor 1 is arranged below the sliding seat 605. The sensor 1 is arranged on the stacking rack 601, and is matched with the V-shaped guide plate 602 to detect the cutting length and lead out and collect the cut tubes 13.
The stacking frame 601 comprises a plurality of U-shaped frames 6011 arranged at intervals along the advancing direction of the pipe 13, the U-shaped frames 6011 are connected through connecting rods 6012, a cross beam 6013 is arranged on the U-shaped frames 6011, the V-shaped guide plate 602 and the long rod 604 are respectively arranged on the cross beam 6013, and a stacking rod 6014 is obliquely arranged on the U-shaped frames 6011. The structural form of the U-shaped frame 6011 and the connecting rod 6012 is firm and reliable in connection, and meanwhile, the cross beam 6013 and the stacking rod 6014 are convenient to install, so that the pipes 13 are stacked and collected by means of self gravity.
The axial clamp 4032 comprises a flange 40321, a guide cylindrical section 40322, a clamping cylindrical section 40323 and an inward bending section 40324 which are integrally formed, the flange 40321 is connected with the axial clamping cylinder 4031, a guide sleeve 408 which is matched with the guide cylindrical section 40322 for guiding is arranged on the moving seat 402, a plurality of grooves 40326 are uniformly arranged on the clamping cylindrical section 40323 and the inward bending section 40324 at intervals along the circumferential direction, and the elastic clamping claws 4033 are arranged between every two adjacent grooves 40326. The axial clamp 4032 adopts an integrally formed design, the whole structure is reliable, particularly, the elastic claw 4033 is directly grooved 40326 on the clamping cylinder section 40323 and the inward bending section 40324 to form the elastic deformation requirement, the structural strength is safe and reliable, the elastic claw 4033 can be matched with the bending section 40412 of the special-shaped inner sleeve 4041 to clamp, and the elastic claw can be quickly separated from the bending section 40412 to elastically reset.
The axial gripper 403 is disposed in the upstream direction of the centrifugal cutter 404, and the radial gripper 406 is disposed in the downstream direction of the centrifugal cutter 404. Thus, the axial clamping device 403 with the best clamping effect has the main clamping effect, and the radial clamping device 406 has the main auxiliary clamping effect, and particularly can effectively prevent the tube 13 from moving during cutting, so that firm and reliable clamping is ensured, and the cutting is stable and accurate.
The extrusion die 8 is a four-out die, the four-out die directly adopts the prior art, the corresponding base 3 is provided with four clamping follow-up cutting mechanisms 4 at intervals along the direction perpendicular to the advancing direction of the tube 13, the upper part of the stacking rack 601 is provided with four V-shaped guide plates 602 and four sensors 1 at intervals along the direction perpendicular to the advancing direction of the tube 13, and one clamping follow-up cutting mechanism 4 corresponds to one V-shaped guide plate 602 and one sensor 1. When adopting four moulds, this application can adjust sensor 1's position, realizes cutting the tubular product 13 of different length, and then can satisfy more processing demands, improves machining efficiency.
A plastic pipe production method comprises the following steps: the tractor 11 draws the pipe 13 to send to the fixed-length cutting device, the pipe 13 passes through the axial clamp 4032, the special-shaped inner sleeve 4041 and the semicircular clamping block B4063 in sequence and enters the V-shaped guide plate 602 through the pipe guide plate 407, when the sensor 1 detects the pipe 13, a signal is sent to the controller 2, the controller 2 sends an instruction to the axial clamping cylinder 4031, the radial clamping cylinder 4061 and the motor 4050, the axial clamping cylinder 4031 acts to push the axial clamp 4032 to insert into the special-shaped inner sleeve 4041, the elastic clamping claws 4033 on the axial clamp 4032 are pressed inwards to clamp the pipe 13 under the action of the bending section 40412 of the special-shaped inner sleeve 4041, meanwhile, the radial clamping cylinder 4061 pushes the semicircular clamping block A4062 to move downwards to match with the semicircular clamping block B4063 to clamp the pipe 13, the pipe 13 and the movable seat 402 are locked together under the combined action of the axial clamp 4032, the semicircular clamping block A4062 and the semicircular clamping block B4063, and the movable seat 402 moves together with the pipe 13, the motor 4050 drives the special-shaped belt wheel 4043 to rotate through the belt 4048, the special-shaped belt wheel 4043 rotates to enable the centrifugal disc 4044 to do centrifugal motion, the centrifugal disc 4044 drives the tool apron 4046 to rotate through the centrifugal motion, the tool apron 4046 rotates to drive the round cutter 4047 on the tool apron 4046 to move towards the direction of the pipe 13 to cut the pipe 13, after the pipe 13 is cut, the motor 4050 stops rotating, the centrifugal disc 4044 resets under the action of the reset spring 4045, the axial clamping cylinder 4031 and the radial clamping cylinder 4061 reset, the pipe 13 is separated from the moving seat 402, the moving seat 402 is driven to reset under the action of the balancing weight 503 at the moment, and preparation is made for cutting the next pipe 13.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (7)
1. A plastic pipe production line is characterized by comprising a plastic extruder, an extrusion die, a vacuum shaping box, a water cooler, a tractor, a fixed-length cutting device and a pipe collecting device;
the fixed-length cutting device comprises a sensor, a controller and a base, wherein at least one clamping follow-up cutting mechanism is arranged on the base and is connected with a reset traction mechanism for resetting the clamping follow-up cutting mechanism, the sensor is used for detecting the cutting length of the pipe and transmitting a detection signal to the controller, and the controller gives an instruction to the clamping follow-up cutting mechanism to cut the pipe;
the clamping follow-up cutting mechanism comprises a guide rail arranged along the advancing direction of the pipe, a moving seat is arranged on the guide rail, an axial clamping device, a centrifugal cutting machine, a radial clamping device and a pipe leading-out plate are arranged on the moving seat, the axial clamping device comprises an axial clamping cylinder and an axial clamp, a through hole for the pipe to pass through is formed in the center of the axial clamp, one end of the axial clamp is connected with the axial clamping cylinder, and a plurality of elastic clamping jaws are arranged at the other end of the axial clamp along the circumferential direction of the axial clamp; the centrifugal cutting machine comprises a special-shaped inner sleeve arranged on the movable seat, the special-shaped inner sleeve is superposed with the central line of the axial clamp, the special-shaped inner sleeve comprises a large cylindrical section, a bending section and a small cylindrical section which are integrally formed, the elastic clamping jaw is inserted into the special-shaped inner sleeve, the elastic claw is pressed inwards to clamp the pipe under the action of the bending section, the bearing is arranged on the outer wall of the special-shaped inner sleeve, the bearing is provided with a special-shaped belt wheel, the special-shaped belt wheel is provided with a centrifugal disc, the centrifugal disc is designed in a split manner, the outer wall of the centrifugal disc is provided with a return spring, the center of the end part of the special-shaped belt wheel is symmetrically provided with two cutter seats, the middle part of the cutter holder is rotatably arranged on the special-shaped belt wheel, one end of the cutter holder is connected with the end part of the centrifugal disc, the other end of the cutter holder is provided with a round cutter, the special-shaped belt wheel is connected with a motor belt wheel through a belt, and the motor belt wheel is connected with a motor; the radial clamping device comprises a radial clamping cylinder arranged on a movable seat, a semicircular clamping block A is arranged on the radial clamping cylinder, and a semicircular clamping block B matched with the semicircular clamping block A to clamp the pipe is arranged on the movable seat;
the resetting traction mechanism comprises a resetting traction rope and a pulley, the pulley is arranged on the base, one end of the resetting traction rope is connected with the moving base, the other end of the resetting traction rope bypasses the pulley to be provided with a balancing weight, the balancing weight drives the clamping follow-up cutting mechanism to reset, and a buffer matched with the moving base for use is arranged on the base.
2. The plastic pipe production line as claimed in claim 1, wherein the pipe collecting device comprises a stacking rack, a V-shaped guide plate for guiding the pipe is arranged above the stacking rack, an arc-shaped guide plate for separating the pipe from the V-shaped guide plate is arranged at the end of the V-shaped guide plate, the stacking rack is used for collecting the pipe falling off from the V-shaped guide plate, a long rod is arranged above the stacking rack, a slide seat is arranged on the long rod, a locking bolt is arranged on the slide seat, and the sensor is arranged below the slide seat.
3. The plastic pipe production line as claimed in claim 2, wherein the stacking rack comprises a plurality of U-shaped racks arranged at intervals along the pipe traveling direction, the U-shaped racks are connected through connecting rods, cross beams are arranged on the U-shaped racks, the V-shaped guide plates and the long rods are respectively arranged on the cross beams, and the stacking rods are obliquely arranged on the U-shaped racks.
4. The plastic pipe production line as claimed in claim 3, wherein the axial clamp includes an integrally formed flange, a guiding cylinder section, a clamping cylinder section and an inward bending section, the flange is connected to the axial clamping cylinder, the moving seat is provided with a guiding sleeve which is matched with the guiding cylinder section for guiding, the clamping cylinder section and the inward bending section are provided with a plurality of slots at uniform intervals along the circumferential direction, and the elastic clamping jaws are disposed between two adjacent slots.
5. A plastic pipe production line as claimed in claim 4, wherein said axial gripper is arranged in an upstream direction of the centrifugal cutter and said radial gripper is arranged in a downstream direction of the centrifugal cutter.
6. The plastic pipe production line as claimed in claim 5, wherein the extrusion die is a four-die extrusion die, four clamping follow-up cutting mechanisms are arranged on the corresponding machine base at intervals along the direction perpendicular to the pipe travelling direction, four V-shaped guide plates and four sensors are arranged above the stacking rack at intervals along the direction perpendicular to the pipe travelling direction, and one clamping follow-up cutting mechanism corresponds to one V-shaped guide plate and one sensor.
7. A production method of plastic pipes is characterized by comprising the following steps: the traction machine draws the pipe to be sent into the fixed-length cutting device, the pipe sequentially passes through the axial clamp, the special-shaped inner sleeve and the semicircular clamping block B and enters the V-direction guide plate through the pipe guide plate, a signal is sent to the controller when the sensor detects the pipe, the controller sends instructions to the axial clamping cylinder, the radial clamping cylinder and the motor, the axial clamping cylinder acts to push the axial clamp to be inserted into the special-shaped inner sleeve, the elastic clamping claws on the axial clamp inwards compress and clamp the pipe under the action of the bending section of the special-shaped inner sleeve, meanwhile, the radial clamping cylinder pushes the semicircular clamping block A to move downwards to be matched with the semicircular clamping block B to clamp the pipe, the pipe and the movable seat are locked together under the combined action of the axial clamp, the movable seat and the pipe, the motor drives the special-shaped belt wheel to rotate through a belt, and the special-shaped belt wheel rotates to enable the centrifugal disc to do centrifugal motion, centrifugal disc centrifugal motion drive blade holder is rotatory, and the blade holder is rotatory to be driven the circular cutter on it and to the motion of tubular product direction cut tubular product, and the back is accomplished in the tubular product cutting, and the motor stall, centrifugal disc reset under reset spring's effect, and axial die clamping cylinder and radial die clamping cylinder reset, and tubular product breaks away from with removing the seat, drives under the effect of balancing weight this moment and removes the seat and reset, prepares for tubular product cutting next time.
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| CN202110592094.6A CN113320115B (en) | 2021-05-28 | 2021-05-28 | Plastic pipe production line and production method |
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| CN202110592094.6A CN113320115B (en) | 2021-05-28 | 2021-05-28 | Plastic pipe production line and production method |
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| CN113927655A (en) * | 2021-09-28 | 2022-01-14 | 上海兴道科技有限公司 | Fixed-length cutting device for plastic steel winding pipe |
| CN117325418A (en) * | 2023-02-10 | 2024-01-02 | 广东江门市澳科特机械科技有限公司 | High-precision on-line cutting equipment for extruded pipe profile |
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| CN113320115B (en) | 2021-11-26 |
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Address after: 264300 paodong village, Tengjia Town, Rongcheng City, Weihai City, Shandong Province Patentee after: Shandong Huana Plastic Group Co.,Ltd. Address before: 264300 paodong village, Tengjia Town, Rongcheng City, Weihai City, Shandong Province Patentee before: Weihai Warner Plastic Co.,Ltd. |
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Denomination of invention: Plastic pipe production line and production method Effective date of registration: 20221010 Granted publication date: 20211126 Pledgee: Rizhao Bank Co.,Ltd. Weihai Rongcheng sub branch Pledgor: Shandong Huana Plastic Group Co.,Ltd. Registration number: Y2022980017770 |
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Date of cancellation: 20231019 Granted publication date: 20211126 Pledgee: Rizhao Bank Co.,Ltd. Weihai Rongcheng sub branch Pledgor: Shandong Huana Plastic Group Co.,Ltd. Registration number: Y2022980017770 |
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Denomination of invention: A plastic pipe production line and production method Effective date of registration: 20231024 Granted publication date: 20211126 Pledgee: Rizhao Bank Co.,Ltd. Weihai Rongcheng sub branch Pledgor: Shandong Huana Plastic Group Co.,Ltd. Registration number: Y2023980062305 |
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Granted publication date: 20211126 Pledgee: Rizhao Bank Co.,Ltd. Weihai Rongcheng sub branch Pledgor: Shandong Huana Plastic Group Co.,Ltd. Registration number: Y2023980062305 |