CN113199729A - Polyethylene reducing pipe fitting joint forming process - Google Patents
Polyethylene reducing pipe fitting joint forming process Download PDFInfo
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- CN113199729A CN113199729A CN202110532849.3A CN202110532849A CN113199729A CN 113199729 A CN113199729 A CN 113199729A CN 202110532849 A CN202110532849 A CN 202110532849A CN 113199729 A CN113199729 A CN 113199729A
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- -1 Polyethylene Polymers 0.000 title claims abstract description 22
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 22
- 230000008569 process Effects 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims description 91
- 239000002994 raw material Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 20
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 238000007667 floating Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 9
- 238000007493 shaping process Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/793—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling upstream of the plasticising zone, e.g. heating in the hopper
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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
- B29C48/25—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
- B29C48/92—Measuring, controlling or regulating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention relates to a polyethylene reducing pipe fitting joint forming process which comprises a bottom plate frame, a fixing frame and a forming device, wherein the middle part of the upper end of the bottom plate frame is provided with the fixing frame, the section of the fixing frame is of a U-shaped structure, and the forming device is arranged in the fixing frame. The invention can solve the problems that the existing equipment has poor processing effect when processing the pipe fitting joint, can not accurately adjust the opening and closing of the mould generally, so that the pipe fitting joint has poor processing effect and low efficiency, can not separate the formed pipe fitting joint from the mould and is not beneficial to subsequent collection, and simultaneously, when the existing equipment processes the pipe fitting joint, the gap of the mould during mould closing easily causes the phenomenon of burrs on the formed pipe fitting joint, can not effectively remove the burrs, and influences the subsequent use effect of the pipe fitting joint.
Description
Technical Field
The invention relates to the field of processing of reducing pipe fittings, in particular to a forming process of a polyethylene reducing pipe fitting joint.
Background
The reducing pipe fitting joint can solve the problem of different calibers during pipeline connection, has the functions of shock absorption and noise reduction, and can save pipeline installation parts and cost; the reducing pipe fitting joint can be widely used for water supply and drainage, circulating water, heating and ventilation air conditioners, fire fighting, papermaking, pharmacy, petrochemical industry, ships, water pumps, compressors, fans and other pipeline systems. The reducer pipe fitting joint has the characteristics of high pressure resistance, good vibration absorption and noise reduction effects, convenience in installation and the like.
At present, the existing reducer union joint usually has the following defects when being processed: 1. when the existing equipment is used for processing the pipe fitting joint, the processing effect is poor, and the opening and closing of the die cannot be accurately adjusted, so that the processing effect of the pipe fitting joint is poor, the efficiency is low, the formed pipe fitting joint cannot be separated from the die, and the subsequent collection is not facilitated; 2 the equipment that has now adds man-hour to the pipe fitting joint, the gap during mould compound die leads to appearing deckle edge's phenomenon on the pipe fitting joint after the shaping easily, can not get rid of the deckle edge effectively, influences the follow-up result of use that the pipe fitting connects.
Disclosure of Invention
Technical problem to be solved
The invention can solve the problems that the existing equipment has poor processing effect when processing the pipe fitting joint, can not accurately adjust the opening and closing of the mould generally, so that the pipe fitting joint has poor processing effect and low efficiency, can not separate the formed pipe fitting joint from the mould and is not beneficial to subsequent collection, and simultaneously, when the existing equipment processes the pipe fitting joint, the gap of the mould during mould closing easily causes the phenomenon of burrs on the formed pipe fitting joint, can not effectively remove the burrs, and influences the subsequent use effect of the pipe fitting joint.
(II) technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme that the forming process of the polyethylene reducing pipe fitting joint adopts the following processing equipment, the processing equipment comprises a bottom plate frame, a fixing frame and a forming device, the middle part of the upper end of the bottom plate frame is provided with the fixing frame, the cross section of the fixing frame is of a U-shaped structure, and the forming device is arranged in the fixing frame.
Forming device include the fixed axle, the rotating turret, slewing mechanism, forming mechanism, the leading truck, material returned mechanism and floating mechanism, mount middle part fixed mounting have the fixed axle, install the rotating turret through the bearing on the fixed axle, the rotating turret is circular structure, slewing mechanism is installed in the mount left side, slewing mechanism is connected with the rotating turret, evenly be provided with the recess on the rotating turret, install forming mechanism in the recess, the forming mechanism outside is hugged closely with the leading truck, the leading truck is installed on the mount inner wall, the inside cavity that is provided with of rotating turret, be provided with material returned mechanism in the cavity, material returned mechanism installs on the fixed axle inboard, the fixed axle outside is connected with forming mechanism, floating mechanism is installed to the mount upper end, floating mechanism is connected with the forming mechanism upper end.
Forming mechanism include mould frame, guide bar, guide holder, expanding spring and carriage, the recess in the symmetry be provided with the spout, be connected with mould frame through sliding fit's mode in the spout, mould frame medial surface is provided with the mould chamber, mould chamber surface is smooth, chemical stability can be good, still be provided with the through-hole with the spout intercommunication on the rotating turret, install the guide holder in the through-hole, be connected with the guide bar through sliding fit's mode in the guide holder, the guide bar inboard is connected with mould frame, be provided with expanding spring on the guide bar, the carriage is installed in the guide bar outside, the carriage outside is hugged closely with the guide holder.
The mould frame include fixed mould, rotation mould, slider and reset spring, the spout in be connected with the fixed mould through sliding fit's mode, the fixed mould inboard is the arc structure, the inboard symmetry of fixed mould is provided with the sliding tray, be connected with the slider through sliding fit's mode in the sliding tray, install the rotation mould between the slider inboard, install reset spring between the slider outside and the sliding tray, reset spring plays the effect that resets, after the rotation mould rotates, reset spring can drive the rotation mould and reset.
The forming process of the polyethylene reducing pipe fitting joint comprises the following steps:
s1, mixing the raw materials: drying the raw materials to be processed and then uniformly mixing the raw materials in proportion;
s2, heating and melting: feeding the raw material in the step S1 into a heating furnace for heating and melting;
s3, quantitative extrusion: extruding the raw material melted in the step S2 into a die cavity inside a die holder by an extruder;
s4, plasticizing and forming: when the raw material in the step S3 enters the die cavity, the rotating mechanism drives the rotating frame to rotate at a constant speed, the forming mechanism on the rotating frame performs extrusion forming on the raw material through the guide frame, the troweling mechanism can trowel the outer side of the formed pipe fitting joint, the phenomenon that burrs occur on the pipe fitting joint due to a gap on the die frame is avoided, and then the forming mechanism moves outwards, and the material returning mechanism moves inwards to be separated from the pipe fitting joint;
s5, collection and storage: collecting and stacking the pipe fittings in the step S4 manually.
Preferably, the slewing mechanism include rotating motor, pivot, rotating gear and connecting gear, the mount outside install through the motor cabinet and rotate the motor, install the pivot on the output shaft of rotating the motor, the pivot is connected with the mount through the bearing, rotating gear is installed to the pivot inboard, the rotating gear meshing has connecting gear, connecting gear installs on the rotating turret.
Preferably, material returned mechanism include alignment jig, connecting rod, coupling spring and moving die carrier, fixed axle mid-mounting have the alignment jig, be provided with the adjustment tank on the alignment jig, evenly be provided with the guiding hole on the rotating turret, be connected with the connecting rod through sliding fit's mode in the guiding hole, the connecting rod inboard is the arc structure, the connecting rod inboard is hugged closely with the alignment jig, is provided with coupling spring on the connecting rod, coupling spring can play the effect that resets, the coupling spring outside is connected with moving die carrier.
Preferably, floating mechanism include arc frame, rack plate, connecting rod and swivel becket, mount upper end install the arc frame, the arc frame cross-section is U type structure, the symmetry is provided with the rack plate on the arc frame inner wall, is provided with incomplete tooth on the rack plate, the symmetry is provided with the connecting rod in the forming mechanism, the swivel becket is installed in the connecting rod outside.
Preferably, the alignment jig including adjust post and regulating block, the regulation post cross-section be cylindrical structure, adjust the post lower extreme and be provided with concave groove, the regulating block is installed on regulation post upper end right side, the regulating block is the arc structure, the junction of regulating block and regulation post is the smooth surface.
Preferably, the leading truck be annular structure, the leading truck middle part is provided with the guide way, the guide way includes groove a and groove b, groove b's degree of depth is greater than groove a, groove a is the arcwall face with groove b's junction.
Preferably, the sliding frame is internally provided with an arc-shaped groove, a ball is embedded in the arc-shaped groove, and the ball is connected with the arc-shaped groove in a sliding manner.
Preferably, the rotating rings are of semicircular structures, the adjacent rotating rings are in circular ring structures, clamping teeth are uniformly arranged on the outer sides of the rotating rings, and the clamping teeth are meshed with the rack plates.
(III) advantageous effects
1. According to the polyethylene reducing pipe fitting joint forming process, the opening and closing of the die frame in the forming mechanism can be accurately adjusted by the guide frame, so that the die frame can effectively extrude and form the pipe fitting joint, the forming effect is good, and the processing efficiency is high;
2. according to the forming process of the polyethylene reducing pipe joint, the movable mould frame in the material returning mechanism can accurately extrude and form the raw materials in the mould cavity, and after forming is finished, the movable mould frame can be separated from the pipe joint, so that subsequent collection of the pipe joint is facilitated;
3. according to the forming process of the polyethylene reducing pipe joint, the floating mechanism can drive the rotating die in the die frame to rotate, so that the rotating die can float the outer side of the formed pipe joint, the phenomenon that burrs occur on the pipe joint due to gaps among the rotating dies is avoided, and the subsequent use of the pipe joint is facilitated.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic view of a first cross-sectional structure of the present invention;
FIG. 3 is a schematic view of a second cross-sectional structure of the present invention;
FIG. 4 is a schematic view of a partial cross-sectional structure between the fixing frame and the forming device according to the present invention;
FIG. 5 is a schematic cross-sectional view of the stationary shaft, the rotating frame, the forming mechanism and the material returning mechanism of the present invention;
FIG. 6 is a schematic cross-sectional view of a mold frame according to the present invention;
FIG. 7 is a schematic plan view of the guide frame of the present invention;
fig. 8 is a schematic sectional view of the fixing shaft and the adjusting bracket according to the present invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 8, a polyethylene reducer pipe fitting connects forming technology, this polyethylene reducer pipe fitting connects forming technology adopts following processing equipment, and this processing equipment includes bottom plate frame 1, mount 2 and forming device 3, 1 upper end mid-mounting of bottom plate frame have mount 2, 2 cross-sections of mount are the U type structure, 2 internally mounted of mount have forming device 3.
The forming device 3 comprises a fixed shaft 31, a rotating frame 32, a rotating mechanism 33, a forming mechanism 34, a guide frame 35, a material returning mechanism 36 and a floating mechanism 37, the fixed shaft 31 is fixedly arranged in the middle of the fixed frame 2, the rotating frame 32 is arranged on the fixed shaft 31 through a bearing, the rotating frame 32 is of a circular structure, the rotating mechanism 33 is arranged on the left side of the fixed frame 2, the rotating mechanism 33 is connected with the rotating frame 32, grooves are uniformly formed in the rotating frame 32, the forming mechanism 34 is arranged in the grooves, the outer side of the forming mechanism 34 is tightly attached to the guide frame 35, the guide frame 35 is arranged on the inner wall of the fixed frame 2, a cavity is arranged in the rotating frame 32, the material returning mechanism 36 is arranged in the cavity, the inner side of the material returning mechanism 36 is arranged on the fixed shaft 31, the outer side of the fixed shaft 31 is connected with the forming mechanism 34, the floating mechanism 37 is arranged at the upper end of the fixed frame 2, and the floating mechanism 37 is connected with the upper end of the forming mechanism 34, when concrete during operation, when the raw materials of molten condition passes through the extruder and extrudes into mould intracavity portion, slewing mechanism 33 drives turret 32 and rotates at the uniform velocity, forming mechanism 34 on the turret 32 carries out extrusion to the raw materials through leading truck 35, trowelling mechanism 37 can connect the outside to the pipe fitting after the shaping and trowelling, avoid the gap on the mould frame 341 to lead to the unedged phenomenon to appear in the pipe fitting joint, when slewing mechanism 33 drives turret 32 and continues to rotate, leading truck 35 drives forming mechanism 34 outwards movement, material returned mechanism 36 inwards moves, make the pipe fitting joint after the shaping and forming mechanism 34 and material returned mechanism 36 phase separation, be convenient for taking out of pipe fitting joint.
The rotating mechanism 33 comprises a rotating motor 331, a rotating shaft 332, a rotating gear 333 and a connecting gear 334, the rotating motor 331 is installed on the outer side of the fixing frame 2 through a motor base, the rotating shaft 332 is installed on an output shaft of the rotating motor 331, the rotating shaft 332 is connected with the fixing frame 2 through a bearing, the rotating gear 333 is installed on the inner side of the rotating shaft 332, the rotating gear 333 is meshed with the connecting gear 334, the connecting gear 334 is installed on the rotating frame 32, during specific work, the rotating motor 331 drives the connecting gear 334 to rotate through the rotating gear 333, the connecting gear 334 can further drive the rotating frame 32 to rotate at a constant speed, and the pipe fitting joint is convenient to continuously form and process.
The molding mechanism 34 includes a mold frame 341, a guide rod 342, a guide seat 343, a telescopic spring 344 and a sliding frame 345, sliding grooves are symmetrically arranged in the grooves, the mold frame 341 is connected in the sliding grooves in a sliding fit manner, a mold cavity is arranged on the inner side surface of the mold frame 341, a through hole communicated with the sliding grooves is further arranged on the rotating frame 32, the guide seat 343 is arranged in the through hole, the guide rod 342 is connected in the guide seat 343 in a sliding fit manner, the inner side of the guide rod 342 is connected with the mold frame 341, the telescopic spring 344 is arranged on the guide rod 342, the sliding frame 345 is arranged on the outer side of the guide rod 342, the outer side of the sliding frame 345 is tightly attached to the guide frame 35, when the rotating mechanism 33 drives the rotating frame 32 to rotate, the rotating frame 32 drives the guide rod 342 to slide in the guide frame 35, and the guide frame 35 can drive the mold frame 341 to open and close through the guide rod 342, the use effect is good, and the machining efficiency of the pipe fitting joint is improved.
The die holder 341 includes a fixed die 3411, a rotating die 3412, a sliding block 3413 and a return spring 3414, the sliding groove is connected with the fixed die 3411 in a sliding fit manner, the inner side of the fixed die 3411 is of an arc structure, sliding grooves are symmetrically formed in the inner side of the fixed die 3411, the sliding block 3413 is connected in the sliding groove in a sliding fit manner, the rotating die 3412 is installed between the inner sides of the sliding blocks 3413, the return spring 3414 is installed between the outer side of the sliding block 3413 and the sliding groove, and the return spring 3414 plays a role in returning.
Carriage 345 inside be provided with the arc wall, the embedding has the ball in the arc wall, ball and arc wall sliding connection, specific during operation, the ball can reduce the friction effectively, guarantees the accuracy nature of carriage 345 motion, does benefit to the shaping that the pipe fitting connects.
Leading truck 35 be the loop configuration, leading truck 35 middle part is provided with the guide way, the guide way includes groove a and groove b, groove b's degree of depth is greater than groove a, concrete during operation, when the guide bar 342 outside slides in groove a, guide bar 342 drives die holder 341 and carries out the compound die, the accurate shaping of the pipe fitting joint of being convenient for, when the guide bar 342 outside slides in groove b, guide bar 342 drives die holder 341 separation, the pipe fitting joint after the shaping of being convenient for drops.
The material returning mechanism 36 comprises an adjusting frame 361, a connecting rod 362, a connecting spring 363 and a movable mould frame 364, wherein the adjusting frame 361 is installed in the middle of the fixed shaft 31, an adjusting groove is formed in the adjusting frame 361, a guide hole is uniformly formed in the rotating frame 32, the connecting rod 362 is connected in the guide hole in a sliding fit mode, the inner side of the connecting rod 362 is of an arc-shaped structure, the inner side of the connecting rod 362 is tightly attached to the adjusting frame 361, the connecting spring 363 is arranged on the connecting rod 362, the outer side of the connecting spring 363 is connected with the movable mould frame 364, and during specific work, the adjusting frame 361 can drive the movable mould frame 364 to be accurately adjusted through the connecting rod 362, so that the movable mould frame 364 can accurately extrude and form a pipe joint, meanwhile, the adjusting frame 361 can drive the movable mould frame 364 to be separated from the formed pipe joint, separation of the pipe joint is facilitated, and collection is facilitated.
Adjusting bracket 361 include regulation post 3611 and regulating block 3612, regulation post 3611 cross-section be cylindrical structure, regulation post 3611 lower extreme is provided with the concave groove, regulating block 3612 is installed on regulation post 3611 upper end right side, regulating block 3612 is the arc structure, in concrete work, when connecting rod 362 is inboard when adjusting the slip of post 3611 outside, movable mould frame 364 does not hug closely with the mould chamber, be convenient for the raw materials of molten condition annotate the material, when connecting rod 362 is inboard when regulating block 3612 outside slip, regulating block 3612 drives movable mould frame 364 through connecting rod 362 and outwards moves, make movable mould frame 364 can carry out the accurate shaping to the raw materials, when connecting rod 362 is inboard when the concave groove is inside, movable mould frame 364 inwards moves and the pipe fitting joint phase separation after the shaping, be convenient for the pipe fitting joint follow-up is collected.
The rotating rings 374 are of semicircular structures, adjacent rotating rings 374 are of circular ring-shaped structures, clamping teeth are evenly arranged on the outer sides of the rotating rings 374 and are meshed with the rack plates 372, and when the rotating rings 374 rotate along with the forming mechanism 34 in specific work, the rotating rings 374 drive the die frame 341 to rotate in a reciprocating mode in a gear meshing mode, so that accurate forming of pipe joints is facilitated.
The forming process of the polyethylene reducing pipe fitting joint comprises the following steps:
s1, mixing the raw materials: drying the raw materials to be processed and then uniformly mixing the raw materials in proportion;
s2, heating and melting: feeding the raw material in the step S1 into a heating furnace for heating and melting;
s3, quantitative extrusion: extruding the raw material melted in step S2 into a die cavity inside the die holder 341 by an extruder;
s4, plasticizing and forming: when the raw material in the step S3 enters the die cavity, the rotating mechanism 33 drives the rotating frame 32 to rotate at a constant speed, the forming mechanism 34 on the rotating frame 32 performs extrusion forming on the raw material through the guide frame 35, the troweling mechanism 37 can trowel the outer side of the formed pipe fitting joint, so that the phenomenon that burrs occur on the pipe fitting joint due to a gap on the die frame 341 is avoided, and then the forming mechanism 34 moves outwards, and the material returning mechanism 36 moves inwards to be separated from the pipe fitting joint;
s5, collection and storage: collecting and stacking the pipe fittings in the step S4 manually.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a polyethylene reducing pipe connects forming technology, this polyethylene reducing pipe connects forming technology adopts following processing equipment, and this processing equipment includes bottom plate frame (1), mount (2) and forming device (3), its characterized in that: a fixed frame (2) is arranged in the middle of the upper end of the bottom plate frame (1), the section of the fixed frame (2) is of a U-shaped structure, and a forming device (3) is arranged in the fixed frame (2); wherein:
the forming device (3) comprises a fixed shaft (31), a rotating frame (32), a rotating mechanism (33), a forming mechanism (34), a guide frame (35), a material returning mechanism (36) and a floating mechanism (37), wherein the fixed shaft (31) is fixedly arranged in the middle of the fixed frame (2), the rotating frame (32) is arranged on the fixed shaft (31) through a bearing, the rotating frame (32) is of a circular structure, the rotating mechanism (33) is arranged on the left side of the fixed frame (2), the rotating mechanism (33) is connected with the rotating frame (32), grooves are uniformly formed in the rotating frame (32), the forming mechanism (34) is arranged in each groove, the outer side of the forming mechanism (34) is tightly attached to the guide frame (35), the guide frame (35) is arranged on the inner wall of the fixed frame (2), a cavity is arranged in the rotating frame (32), the material returning mechanism (36) is arranged in each cavity, the inner side of the material returning mechanism (36) is arranged on the fixed shaft (31), the outer side of the fixed shaft (31) is connected with a forming mechanism (34), the upper end of the fixed frame (2) is provided with a floating mechanism (37), and the floating mechanism (37) is connected with the upper end of the forming mechanism (34);
the forming mechanism (34) comprises a die frame (341), a guide rod (342), a guide seat (343), a telescopic spring (344) and a sliding frame (345), sliding grooves are symmetrically formed in the grooves, the die frame (341) is connected in the sliding grooves in a sliding fit manner, a die cavity is formed in the inner side face of the die frame (341), a through hole communicated with the sliding grooves is further formed in the rotating frame (32), the guide seat (343) is installed in the through hole, the guide rod (342) is connected in the guide seat (343) in a sliding fit manner, the inner side of the guide rod (342) is connected with the die frame (341), the telescopic spring (344) is arranged on the guide rod (342), the sliding frame (345) is installed on the outer side of the guide rod (342), and the outer side of the sliding frame (345) is tightly attached to the guide frame (35);
the die holder (341) comprises a fixed die (3411), a rotating die (3412), a sliding block (3413) and a return spring (3414), the fixed die (3411) is connected in the sliding groove in a sliding fit mode, the inner side of the fixed die (3411) is of an arc-shaped structure, sliding grooves are symmetrically formed in the inner side of the fixed die (3411), the sliding block (3413) is connected in the sliding grooves in a sliding fit mode, the rotating die (3412) is installed between the inner sides of the sliding blocks (3413), and the return spring (3414) is installed between the outer side of the sliding block (3413) and the sliding grooves;
the forming process of the polyethylene reducing pipe fitting joint comprises the following steps:
s1, mixing the raw materials: drying the raw materials to be processed and then uniformly mixing the raw materials in proportion;
s2, heating and melting: feeding the raw material in the step S1 into a heating furnace for heating and melting;
s3, quantitative extrusion: extruding the raw material melted in the step S2 into a die cavity inside a die holder (341) by an extruder;
s4, plasticizing and forming: when the raw material in the step S3 enters the die cavity, the rotating mechanism (33) drives the rotating frame (32) to rotate at a constant speed, the forming mechanism (34) on the rotating frame (32) extrudes the raw material through the guide frame (35), the trowelling mechanism (37) can trowel the outer side of the formed pipe fitting joint, the phenomenon that burrs occur on the pipe fitting joint due to gaps on the die frame (341) is avoided, and then the forming mechanism (34) moves outwards, and the material returning mechanism (36) moves inwards to be separated from the pipe fitting joint;
s5, collection and storage: collecting and stacking the pipe fittings in the step S4 manually.
2. The forming process of the polyethylene reducer union joint according to claim 1, wherein: slewing mechanism (33) including rotating motor (331), pivot (332), rotating gear (333) and connecting gear (334), mount (2) outside install through the motor cabinet and rotate motor (331), install pivot (332) on the output shaft of rotating motor (331), pivot (332) are connected with mount (2) through the bearing, rotating gear (333) are installed to pivot (332) inboard, rotating gear (333) meshing has connecting gear (334), connecting gear (334) are installed on rotating turret (32).
3. The forming process of the polyethylene reducer union joint according to claim 1, wherein: the material returning mechanism (36) comprises an adjusting frame (361), a connecting rod (362), a connecting spring (363) and a movable mould frame (364), the adjusting frame (361) is installed in the middle of the fixed shaft (31), an adjusting groove is formed in the adjusting frame (361), a guide hole is uniformly formed in the rotating frame (32), the connecting rod (362) is connected in the guide hole in a sliding fit mode, the inner side of the connecting rod (362) is of an arc-shaped structure, the inner side of the connecting rod (362) is tightly attached to the adjusting frame (361), the connecting spring (363) is arranged on the connecting rod (362), and the outer side of the connecting spring (363) is connected with the movable mould frame (364).
4. The forming process of the polyethylene reducer union joint according to claim 1, wherein: trowelling mechanism (37) include arc frame (371), rack plate (372), connecting rod (373) and rotating ring (374), mount (2) upper end install arc frame (371), arc frame (371) cross-section is U type structure, the symmetry is provided with rack plate (372) on arc frame (371) inner wall, is provided with incomplete tooth on rack plate (372), the symmetry is provided with connecting rod (373) on forming mechanism (34), rotating ring (374) are installed in connecting rod (373) outside.
5. The forming process of the polyethylene reducer union joint according to claim 1, wherein: the adjusting frame (361) comprises an adjusting column (3611) and an adjusting block (3612), the cross section of the adjusting column (3611) is of a cylindrical structure, a concave groove is formed in the lower end of the adjusting column (3611), the adjusting block (3612) is installed on the right side of the upper end of the adjusting column (3611), and the adjusting block (3612) is of an arc-shaped structure.
6. The forming process of the polyethylene reducer union joint according to claim 1, wherein: guide frame (35) be the loop configuration, guide frame (35) middle part is provided with the guide way, the guide way includes groove a and groove b, groove b's degree of depth is greater than groove a.
7. The forming process of the polyethylene reducer union joint according to claim 1, wherein: an arc-shaped groove is formed in the sliding frame (345), a ball is embedded into the arc-shaped groove, and the ball is connected with the arc-shaped groove in a sliding mode.
8. The forming process of the polyethylene reducer union joint according to claim 4, wherein: the rotating rings (374) are of semicircular structures, the adjacent rotating rings (374) are in circular ring structures, clamping teeth are uniformly arranged on the outer sides of the rotating rings (374), and the clamping teeth are meshed with the rack plates (372).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110532849.3A CN113199729B (en) | 2021-05-17 | 2021-05-17 | Polyethylene reducing pipe fitting joint forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113199729B (en) | 2022-04-08 |
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Address after: 239000 Jingwu Road, economic development zone, Quanjiao County, Chuzhou City, Anhui Province Applicant after: Chuzhou guodeng Pipe Technology Co.,Ltd. Address before: 239000 Jingwu Road, economic development zone, Quanjiao County, Chuzhou City, Anhui Province Applicant before: Anhui Tongtong Pipe Industry Co.,Ltd. |
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