CN111619090A - Adjustable forming die head for plastic pipeline - Google Patents

Adjustable forming die head for plastic pipeline Download PDF

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Publication number
CN111619090A
CN111619090A CN202010506060.6A CN202010506060A CN111619090A CN 111619090 A CN111619090 A CN 111619090A CN 202010506060 A CN202010506060 A CN 202010506060A CN 111619090 A CN111619090 A CN 111619090A
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CN
China
Prior art keywords
pipeline
transmission shaft
fixed
power transmission
die body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202010506060.6A
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Chinese (zh)
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Shuojing Electromechanical Design Service Co ltd
Original Assignee
Anhui Shuojing Electromechanical Design Service Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Anhui Shuojing Electromechanical Design Service Co ltd filed Critical Anhui Shuojing Electromechanical Design Service Co ltd
Priority to CN202010506060.6A priority Critical patent/CN111619090A/en
Publication of CN111619090A publication Critical patent/CN111619090A/en
Withdrawn legal-status Critical Current

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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
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • B29C48/327—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections with centering means
    • 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
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87—Cooling
    • 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
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92609—Dimensions
    • B29C2948/92647—Thickness
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92942—Moulded article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention provides an adjustable molding die head of a plastic pipeline, which comprises a molding pipe head, an inner die body, an outer die mechanism and a cooling assembly, wherein the feeding end of the molding pipe head is coaxially and fixedly connected and communicated with the discharging end of plastic melting equipment; the plastic pipeline structure can receive molten plastic and form the molten plastic into a square plastic pipeline structure, the distance between the outer die area and the inner die body can be adjusted according to the actual wall thickness of the square plastic pipeline to be produced, the distance between the outer die area and the inner die body can be adjusted, the wall thickness requirement of the square plastic pipeline to be produced actually can be met, the applicability is wider, and the distance adjusting process between the outer die area and the inner die body is fully automatic.

Description

Adjustable forming die head for plastic pipeline
Technical Field
The invention relates to the field of plastic parts, in particular to a square plastic pipe fitting forming machine head.
Background
The mold is a tool for molding a product with a certain shape and size by utilizing a specific shape of the mold, plastic melt molding is a method for molding and processing a plastic after the plastic is heated to a melting point or higher so as to be in a molten state, and the processing process of a plastic pipe fitting is generally as follows: the invention provides a square plastic pipe fitting forming machine head, which can receive molten plastic and form the molten plastic into a square plastic pipe structure, and can adjust the distance between an outer mould area and an inner mould according to the actual wall thickness of a square plastic pipe to be produced, so that the distance between the outer mould area and the inner mould can be adjusted to meet the wall thickness requirement of the square plastic pipe to be produced actually, the applicability is wider, the distance adjusting process between the outer die area and the inner die body is fully automatic, a worker only needs to start and close the driving motor according to actual conditions, and the whole adjusting process is simple, quick and easy to operate.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a square plastic pipe fitting forming machine head which can receive molten plastic and form the molten plastic into a square plastic pipe structure, can adjust the distance between an outer mould area and an inner mould according to the actual wall thickness of a square plastic pipe to be produced, can adjust the distance between the outer mould area and the inner mould body and enable the distance to meet the wall thickness requirement of the square plastic pipe to be produced in actual need, has wider applicability, is fully automatic in the distance adjusting process between the outer mould area and the inner mould body, can be operated by a worker only by starting and closing a driving motor according to actual conditions, and is simple, rapid and easy to operate in the whole adjusting process.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.
The adjustable molding die head for the plastic pipeline comprises a molding pipe head, an inner die body, an outer die mechanism and a cooling assembly, wherein the feeding end of the molding pipe head is communicated with the discharging end of plastic melting equipment in a coaxial and fixed connection mode, the inner die body/the outer die mechanism/the cooling assembly are arranged on the molding pipe head, the inner die body is matched with the outer die mechanism and used for providing a die for molding the square plastic pipeline, and the cooling assembly is used for providing flowing cooling water for the molding process of the square plastic pipeline.
The technical scheme is further improved and optimized.
The forming pipe head comprises a fixed shell, a feeding joint, a first fixed disc, a second fixed disc and a forming pipeline, wherein the feeding joint is of a circular pipeline structure with openings at two ends, one opening end of the feeding joint coaxially extends to the direction far away from the axial lead of the feeding joint, a fixed step coaxially and fixedly arranged at the other opening end is provided with a fixed end cover, and the fixed step of the feeding joint is coaxially and fixedly connected with the discharge end of the plastic melting equipment through a fastening bolt;
the first fixed disk is of an annular plate structure, the first fixed disk and the end face, deviating from the feeding connector, of the fixed end cover are coaxially and fixedly connected, the forming pipeline is of a pipeline structure with openings at two ends, the forming pipeline and the end face, deviating from the feeding connector, of the first fixed disk are coaxially and fixedly connected, the second fixed disk is of an annular plate structure, and the second fixed disk and the end face, deviating from the feeding connector, of the forming pipeline are coaxially and fixedly connected;
the fixed shell is of a circular shell structure with an opening at one end and a closed end, the fixed shell is coaxially fixed on the outer circular surfaces of the first fixed disk and the second fixed disk in a fixed mode, and the closed end of the fixed shell is coaxially provided with a discharging connector communicated with the cavity of the forming pipeline.
The technical scheme is further improved and optimized.
The inner die body is of a rectangular pipeline structure with openings at two ends, one end of the inner die body is a water inlet end and is positioned on one side of the closed end of the fixed shell, which is far away from the feeding joint, the other end of the inner die body is a connecting end, the end sequentially penetrates through a discharging joint arranged at the closed end of the fixed shell and an inner cavity of the fixed shell and is coaxially and fixedly connected with a fixed end cover arranged at the end part of the feeding joint, a connecting hole penetrating through the axial thickness of the fixed end cover is coaxially formed in the fixed end cover, and the connecting hole is used for mutual communication between the inner die body and the feeding joint;
the side surface of the inner die body is provided with a feed hole penetrating through the thickness of the inner die body, the feed hole is used for communicating the inner cavity of the inner die body with the pipe cavity of the forming pipeline, the feed hole is close to the connecting end of the inner die body, and four groups of side surfaces of the inner die body are provided with feed holes;
the inner die body is also internally provided with a baffle which is positioned at one side of the feed hole departing from the feed joint and is close to the feed joint, and the baffle is used for dividing the inner cavity of the inner die body into two sections which are respectively a cooling section between the baffle and the water inlet end of the inner die body and a feeding section between the baffle and the connecting end of the inner die body.
The technical scheme is further improved and optimized.
The cooling component comprises a drainage pipeline and a vacuum pipeline, the vacuum pipeline is provided with two groups of vacuum pipelines I and II, the axial direction of the first vacuum pipeline is parallel to the end face of the opening end of the feeding joint, the first vacuum pipeline is fixedly arranged in the feeding joint, two pipe orifices of the first vacuum pipeline are fixed with the wall of the feeding joint, the outer circular surface of the feeding joint is provided with a suction hole communicated with one pipe orifice of the first vacuum pipeline, a sealing end cover is arranged on the orifice of the suction hole in a matching way, an avoidance hole communicated with the other pipe orifice of the first vacuum pipeline is also arranged on the outer circular surface of the feeding joint, the second vacuum pipeline and the first vacuum pipeline are coaxially arranged, one end of the second vacuum pipeline is fixedly connected with the baffle, the other end of the second vacuum pipeline is fixedly connected with the first vacuum pipeline, and the second vacuum pipeline is communicated with the first vacuum pipeline;
one end of the drainage pipeline is fixedly connected with the baffle, and the other end of the drainage pipeline sequentially penetrates through the first vacuum pipeline, the second vacuum pipeline and the avoidance hole formed in the outer circular surface of the feeding joint and then is positioned outside the forming pipe head;
and sealing gaskets are arranged among the drainage pipeline, the vacuum pipeline II and the avoidance holes arranged on the outer circular surface of the feeding joint, sealing gaskets are arranged among the vacuum pipeline II, the baffle and the drainage pipeline, and the interiors of the vacuum pipeline I and the vacuum pipeline II are vacuum structures.
The technical scheme is further improved and optimized.
The cooling section of the inner cavity of the inner die body is internally and coaxially provided with a supporting block in a rectangular strip structure, the side surface of the supporting block is provided with a connecting plate, and the supporting block is fixedly connected with the cooling section of the inner cavity of the inner die body through the connecting plate.
The technical scheme is further improved and optimized.
The outer die mechanism comprises a thickness adjusting component and an outer die component, the outer die component is used for being matched with the inner die body and providing a die for forming the square plastic pipeline, the distance between the outer die component and the inner die body is adjustable, and the thickness adjusting component is used for providing power for the outer die component in the process of adjusting the distance between the outer die component and the inner die body;
the outer mould component include the mould board, drive assembly, the mould board is that the big face is on a parallel with the axial rectangular plate structure of shaping pipeline, the mould board sets up in the region between shaping pipeline inner chamber wall and the internal mold external surface and the one end of mould board and fixed end cover deviate from between the terminal surface of feed connection contact, contact between the inner chamber end of the other end and fixed shell, the mould board is provided with four groups and four groups mould boards constitute outer mould district jointly, outer mould district is square structure and the central line in outer mould district and the concrete central line of inner mould are located same straight line.
The technical scheme is further improved and optimized.
The driving assembly comprises a screw rod and a guide rod, the extension directions of the screw rod and the guide rod are both perpendicular to the axial direction of the forming pipeline, one end of the screw rod/the guide rod is fixedly connected with the die plate, the other end of the screw rod/the guide rod penetrates through the side wall of the forming pipeline and is positioned in the area between the outer circular surface of the forming pipeline and the cavity wall of the inner cavity of the fixed shell, and the screw rod/the guide rod can displace along the extension direction of the screw rod/the guide rod;
the four driving assemblies are correspondingly provided with four groups, and when the four groups of driving assemblies synchronously displace along the extending direction of the driving assemblies, the area of an outer die area formed by the four groups of die plates can be changed, and the outer die area always keeps a square structure which is concentric with the inner die body.
The technical scheme is further improved and optimized.
The thickness adjusting component comprises a driving motor, a first power transmission component and a second power transmission component, wherein the first power transmission component is used for receiving the power of the driving motor and transmitting the power to the second power transmission component, and the second power transmission component is used for receiving the power given by the second power transmission component and driving four groups of driving components to synchronously displace along the self extension direction by utilizing the power;
the driving motor is fixedly arranged on the outer circular surface of the fixed shell, the power output end of the driving motor penetrates through the side wall of the fixed shell and is positioned in an area between the cavity wall of the inner cavity of the fixed shell and the outer circular surface of the forming pipeline, and the axial direction of the output shaft of the driving motor is consistent with the diameter direction of the fixed shell at the fixed point of the fixed shell.
The technical scheme is further improved and optimized.
The first power transmission assembly is arranged in an area between the cavity wall of the inner cavity of the fixed shell and the outer circular surface of the forming pipeline and comprises a first transmission shaft, a first power transmission piece and a second power transmission piece, the axial direction of the first transmission shaft is parallel to the axial direction of the forming pipeline, one end of the first transmission shaft is movably connected with the first fixed disk, the other end of the first transmission shaft is movably connected with the second fixed disk, and the first transmission shaft can rotate around the axial direction of the first transmission shaft;
the first power transmission piece is arranged in the power output end of the driving motor and the first transmission shaft and is used for power connection transmission between the driving motor and the first transmission shaft, and the first power transmission piece is of a bevel gear power transmission structure;
the first power transmission part comprises a driving straight gear and a driven outer gear ring, the driving straight gear is coaxially and fixedly installed on the outer portion of the first transmission shaft, the driven outer gear ring is coaxially installed on the outer portion of the forming pipeline through a bearing, and the driving straight gear and the driven outer gear ring are meshed with each other.
The technical scheme is further improved and optimized.
The power transmission assembly II is arranged in an area between the cavity wall of the inner cavity of the fixed shell and the outer circular surface of the forming pipeline and comprises an installation support, a transmission shaft II and a transmission shaft III, the installation support is fixedly arranged on the outer circular surface of the forming pipeline, the axial direction of the transmission shaft II is parallel to the axial direction of the forming pipeline, the transmission shaft II is movably arranged on the installation support and can rotate around the axial direction of the transmission shaft II, a receiving straight gear is also coaxially and fixedly arranged on the transmission shaft II, and the receiving straight gear is meshed with the driven outer gear ring;
the axial direction of the third transmission shaft is parallel to the diameter direction of the formed pipeline at the straight line intersection point of the third transmission shaft, and the third transmission shaft is movably arranged on the mounting bracket and can rotate around the axial direction of the third transmission shaft;
a third power transmission part is arranged between the second transmission shaft and the third transmission shaft, power connection transmission is carried out between the second transmission shaft and the third transmission shaft through the third power transmission part, and the third power transmission part is of a bevel gear power transmission structure;
a fourth power transmission part is arranged between the third transmission shaft and a screw rod of the driving assembly, the fourth power transmission part comprises an input straight gear and an output straight gear, the input straight gear is coaxially and fixedly arranged outside the third transmission shaft, the output straight gear is coaxially sleeved outside the screw rod in a threaded mounting mode and is movably connected with the mounting bracket, the output straight gear rotates around the self axial direction and can pull the screw rod to displace along the self axial direction, and the output straight gear is meshed with the input straight gear;
four groups of power transmission assemblies are correspondingly arranged.
Compared with the prior art, the invention has the advantages that the plastic pipe structure can receive molten plastic and form the molten plastic into a square plastic pipe structure, and the distance between the outer die area and the inner die body can be adjusted according to the actual wall thickness of the square plastic pipe to be produced, so that the distance between the outer die area and the inner die body can be adjusted and the distance meets the wall thickness requirement of the square plastic pipe to be produced actually, the applicability is wider, the distance adjusting process between the outer die area and the inner die body is fully automatic, a worker only needs to start and close the driving motor according to the actual situation, and the whole adjusting process is simple, rapid and easy to operate; in addition, the supporting block arranged in the inner die body has a supporting function on the inner die body, and when cooling water flows into the cooling section of the inner die body, the supporting block can distribute flowing water between the supporting block and the inner die body, so that the cooling effect is better; in addition, the arrangement of the vacuum pipeline in the cooling assembly enables the flowing water cooling system to only provide a cooling effect on the molten plastic in the forming pipeline, and does not influence the molten plastic in the pipe cavity of the feeding joint, namely, does not influence the flow of the molten plastic to the area between the outer mold area and the inner mold body.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic view of the internal structure of the present invention.
Fig. 4 is a schematic view of the internal structure of the present invention.
FIG. 5 is a schematic view of the structure of the forming tube head, the inner mold body and the cooling assembly of the present invention.
Fig. 6 is a schematic cross-sectional view of a formed tube head, inner mold body, and cooling assembly of the present invention.
Fig. 7 is a schematic structural view of the inner mold body and the feed joint of the present invention.
Fig. 8 is a schematic structural view of the molding pipe and the first/second fixing disc of the present invention.
Fig. 9 is a schematic structural view of the outer mold mechanism of the present invention.
Fig. 10 is a schematic structural view of the outer mold mechanism of the present invention.
Fig. 11 is a schematic structural view of the outer mold mechanism of the present invention.
Fig. 12 is a schematic front view of the outer mold mechanism of the present invention.
Fig. 13 is a schematic structural view of an outer mold member of the present invention.
Fig. 14 is a schematic structural view of a thickness adjustment member according to the present invention.
Fig. 15 is a schematic structural diagram of a first driving motor and a first power transmission assembly of the invention.
Fig. 16 is a schematic structural view of a second power transmission assembly of the present invention.
Fig. 17 is a schematic structural view of a second power transmission assembly of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The adjustable molding die head of the plastic pipeline comprises a molding pipe head 100, an inner die body 200, an outer die mechanism 300 and a cooling assembly 400, wherein the feeding end of the molding pipe head 100 is communicated with the discharging end of plastic melting equipment in a coaxial and fixed connection mode, the inner die body 200/the outer die mechanism 300/the cooling assembly 400 are installed on the molding pipe head 100, the inner die body 200 is matched with the outer die mechanism 300 and used for providing a die for molding the square plastic pipeline, and the cooling assembly 400 is used for providing flowing cooling water for the molding process of the square plastic pipeline.
The forming tube head 100 comprises a fixed shell 101, a feeding connector 102, a first fixed disc 103, a second fixed disc 105 and a forming pipeline 104, wherein the feeding connector 102 is of a circular pipeline structure with openings at two ends, one opening end of the feeding connector 102 is coaxially extended to a direction far away from the axis of the feeding connector 102 and is provided with a fixed step, the other opening end of the feeding connector is coaxially and fixedly provided with a fixed end cover, and the fixed step of the feeding connector 102 is coaxially and fixedly connected with the discharge end of the plastic melting equipment through a fastening bolt.
Fixed disk 103 be the annular plate body structure to fixed disk 103 and fixed end cover deviate from coaxial fixed connection between the terminal surface of feed connector 102, shaping pipeline 104 be both ends open-ended pipeline structure, and coaxial fixed connection between the terminal surface that feed connector 102 deviates from shaping pipeline 104 and fixed disk 103, two 105 of fixed disk be the annular plate body structure, and fixed disk 105 and shaping pipeline 104 deviate from coaxial fixed connection between the terminal surface of feed connector 102.
The fixed shell 101 is a circular shell structure with an opening at one end and a closed end, the fixed shell 101 is coaxially and fixedly sleeved on the outer circular surfaces of the first fixed disk 103 and the second fixed disk 105, and the closed end of the fixed shell 101 is coaxially provided with a discharging joint communicated with the cavity of the forming pipeline 104.
The inner die body 200 be both ends open-ended rectangle pipeline structure, the one end of the inner die body 200 is for intaking one side that the end lies in fixed shell 101 blind end and deviates from feeding joint 102, the other end of the inner die body 200 is that link and this end pass in proper order and set up in the ejection of compact joint of fixed shell 101 blind end, fixed shell 101 inner chamber back and set up coaxial fixed connection between the fixed end cover of feeding joint 102 tip, still coaxial seting up the connecting hole that runs through its axial thickness on the fixed end cover, the connecting hole is used for the intercommunication each other between the inner die body 200 and the feeding joint 102.
The side surface of the inner die body 200 is provided with a feeding hole 201 penetrating through the thickness of the inner die body, the feeding hole 201 is used for communicating the inner cavity of the inner die body 200 and the cavity of the forming pipeline 104, the feeding hole 201 is close to the connecting end of the inner die body 200, and preferably, four groups of side surfaces of the inner die body 200 are provided with the feeding holes 201.
The inner die body 200 is further internally provided with a baffle plate, the baffle plate is positioned on one side of the feeding hole 201 departing from the feeding joint 102 and is also close to the feeding joint 102, and the baffle plate is used for dividing the inner cavity of the inner die body 200 into two sections which are respectively a cooling section between the baffle plate and the water inlet end of the inner die body 200 and a feeding section between the baffle plate and the connecting end of the inner die body 200.
The cooling assembly 400 comprises a drainage pipeline 401 and a vacuum pipeline 402, the vacuum pipeline 402 is provided with two groups of vacuum pipelines I and II, the axial direction of the first vacuum pipeline is parallel to the end face of the opening end of the feeding joint 102, the first vacuum pipeline is fixedly arranged in the feeding joint 102, two pipe orifices of the first vacuum pipeline are fixed with the wall of the feeding joint 102, a suction hole communicated with one pipe orifice of the first vacuum pipeline is arranged on the outer circular surface of the feeding joint 102, a sealing end cover is arranged at the orifice of the suction hole in a matching way, an avoidance hole communicated with the other pipe orifice of the first vacuum pipeline is also arranged on the outer circular surface of the feeding joint 102, the second vacuum pipeline and the feeding joint 102 are coaxially arranged, one end of the second vacuum pipeline is fixedly connected with the baffle, the other end of the second vacuum pipeline is fixedly connected with the first vacuum pipeline, and the second vacuum pipeline is communicated with the first vacuum pipeline in a mutual connection mode.
One end of the drainage pipeline 401 is fixedly connected with the baffle, and the other end of the drainage pipeline 401 sequentially penetrates through the first vacuum pipeline, the second vacuum pipeline and the avoidance hole formed in the outer circular surface of the feeding joint 102 and then is located outside the forming pipe head 100.
And sealing gaskets are arranged among the drainage pipeline 401, the vacuum pipeline II and the avoidance holes arranged on the outer circular surface of the feeding joint 102, sealing gaskets are arranged among the vacuum pipeline II, the baffle and the drainage pipeline 401, and the interiors of the vacuum pipeline I and the vacuum pipeline II are vacuum structures.
The cooling water flows in from the water inlet end of the inner mold body 200 and is discharged after passing through the cooling section of the inner cavity of the inner mold body 200 and the water discharge pipeline 401, so that a flowing water cooling system is formed.
More specifically, a supporting block 202 in a rectangular strip structure is coaxially arranged in the cooling section of the inner cavity of the inner mold body 200, a connecting plate is arranged on the side surface of the supporting block 202, and the supporting block 202 is fixedly connected with the cooling section of the inner cavity of the inner mold body 200 through the connecting plate; the supporting block 202 is provided to support the inner mold body 200, and in addition, after the cooling water flows into the cooling section of the inner mold body 200, the flowing water is distributed between the supporting block 200 and the inner mold body 200 due to the existence of the supporting block 200, so that the cooling effect is better.
The outer mold mechanism 300 comprises a thickness adjusting member 310 and an outer mold member 320, wherein the outer mold member 320 is used for being matched with the inner mold body 200 and providing a mold for forming the square plastic pipe, the distance between the outer mold member 320 and the inner mold body 200 is adjustable, and the thickness adjusting member 310 is used for providing power for the process of adjusting the distance between the outer mold member 320 and the inner mold body 200.
The outer mold member 320 comprises mold plates 321 and a driving assembly, the mold plates 321 are rectangular plate structures with large faces parallel to the axial direction of the forming pipeline 104, the mold plates 321 are arranged in an area between the inner cavity wall of the forming pipeline 104 and the outer surface of the inner mold body 200, one ends of the mold plates 321 are in contact with the end faces of the fixed end covers, which are away from the feeding connectors 102, and the other ends of the mold plates are in contact with the cavity bottom of the inner cavity of the fixed shell 101, the mold plates 321 are provided with four groups of the mold plates 321, the four groups of the mold plates 321 jointly form an outer mold area, the outer mold area is of a square structure, and the central line of the outer mold area and the central.
The driving assembly comprises a screw rod 322 and a guide rod 323, the extending directions of the screw rod 322 and the guide rod 323 are both perpendicular to the axial direction of the forming pipe 104, one end of the screw rod 322/the guide rod 323 is fixedly connected with the die plate 321, the other end of the screw rod 322/the guide rod 323 penetrates through the side wall of the forming pipe 104 and is located in the area between the outer circular surface of the forming pipe 104 and the cavity wall of the inner cavity of the fixed shell 101, and the screw rod 322/the guide rod 323 can displace along the extending direction thereof.
The driving components are correspondingly provided with four groups, and when the four groups of driving components synchronously displace along the extending direction of the driving components, the area of an outer die area formed by the four groups of die plates 321 can be changed, and the outer die area always keeps a square structure which is concentric with the inner die body 200.
The thickness adjusting member 310 includes a driving motor 311, a first power transmission component 312, and a second power transmission component 313, wherein the first power transmission component 312 is used for receiving the power of the driving motor 311 and transmitting the power to the second power transmission component 313, and the second power transmission component 313 is used for receiving the power provided by the second power transmission component 313 and driving the four sets of driving components to synchronously displace along the extending direction thereof by using the power.
The driving motor 311 is fixedly installed on the outer circular surface of the fixed housing 101, the power output end of the driving motor 311 passes through the side wall of the fixed housing 101 and is located in the area between the cavity wall of the inner cavity of the fixed housing 101 and the outer circular surface of the forming pipeline 104, and the axial direction of the output shaft of the driving motor 311 is consistent with the diameter direction of the fixed housing 101 at the fixed point.
The first power transmission assembly 312 is arranged in an area between the cavity wall of the inner cavity of the fixed shell 101 and the outer circular surface of the forming pipeline 104, the first power transmission assembly 312 comprises a first transmission shaft 3121, a first power transmission member 3122 and a second power transmission member, the axial direction of the first transmission shaft 3121 is parallel to the axial direction of the forming pipeline 104, one end of the first transmission shaft 3121 is movably connected with the first fixed disk 103, the other end of the first transmission shaft is movably connected with the second fixed disk 105, and the first transmission shaft 3121 can rotate around the axial direction of the first transmission shaft.
The first power transmission member 3122 is disposed inside the power output end of the driving motor 311 and the first transmission shaft 3121, and the first power transmission member 3122 is used for power connection transmission between the driving motor 311 and the first transmission shaft 3121, specifically, the first power transmission member 3122 is a bevel gear power transmission structure.
The first power transmission member 3122 includes a driving spur gear 3123 and a driven outer gear ring 3124, the driving spur gear 3123 is coaxially and fixedly installed outside the first transmission shaft 3121, the driven outer gear ring 3124 is coaxially installed outside the forming pipe 104 through a bearing, and the driving spur gear 3123 and the driven outer gear ring 3124 are engaged with each other.
The second power transmission assembly 313 is disposed in an area between an inner cavity wall of the fixed housing 101 and an outer circumferential surface of the forming pipe 104, the second power transmission assembly 313 includes a mounting support 3131, a second transmission shaft 3132, and a third transmission shaft 3133, the mounting support 3131 is fixedly mounted on the outer circumferential surface of the forming pipe 104, an axial direction of the second transmission shaft 3132 is parallel to an axial direction of the forming pipe 104, the second transmission shaft 3132 is movably mounted on the mounting support 3131 and can rotate around an axial direction of the second transmission shaft 3132, the second transmission shaft 3132 is further coaxially and fixedly provided with a receiving spur gear 3133, and the receiving spur gear 3133 is engaged with the driven outer gear ring 3124.
The axial direction of the transmission shaft 3134 is parallel to the diameter direction of the forming pipe 104 at the straight line intersection point of the transmission shaft 3134, and the transmission shaft 3134 is movably mounted on the mounting support 3131 and can rotate around the self axial direction.
A power transmission element 3135 is disposed between the second transmission shaft 3132 and the third transmission shaft 3134, and power transmission is performed between the two through the power transmission element 3135, specifically, the power transmission element 3135 is a bevel gear power transmission structure.
The transmission shaft III 3134 and the screw rod 322 of the driving assembly are provided with a power transmission part IV 3136 therebetween, the power transmission part IV 3136 comprises an input straight gear and an output straight gear, the input straight gear is coaxially and fixedly arranged outside the transmission shaft III 3134, the output straight gear is coaxially sleeved outside the screw rod 322 in a thread mounting mode and is movably connected with the mounting support 3131, the output straight gear rotates around the self axial direction and can pull the screw rod 322 to displace along the self axial direction, and the output straight gear and the input straight gear are meshed with each other.
Four groups of power transmission assemblies 313 are correspondingly arranged.
During actual work, molten plastic provided by the plastic melting equipment sequentially flows into an area between an outer mold area and the outer surface of the inner mold body 200, which is formed by four groups of mold plates 321 together, through the feeding joint 102, a connecting hole arranged on the fixed end cover, a feeding section of an inner cavity of the inner mold body 200 and a feeding hole 201 arranged on the side surface of the inner mold body 200, and simultaneously cooling water flows in from a water inlet end of the inner mold body 200 and is discharged after passing through a cooling section of the inner cavity of the inner mold body 200 and a drainage pipeline 401, so that a flowing water cooling system for forming a square plastic pipeline is formed, and in the process, due to the existence of the vacuum pipeline I and the vacuum pipeline II, the flowing water cooling system does not influence the molten plastic in the pipe cavity of the feeding joint 102, and only provides a cooling effect for the molten plastic in the forming pipeline 104;
in the above process, if a square plastic pipe with another thickness needs to be produced, the driving motor 311 runs and drives the screw rod 322 to displace along the self axial direction through the cooperation of the first power transmission assembly 312 and the second power transmission assembly 313, that is, the four groups of driving assemblies displace along the self extending direction synchronously, so that the area of the outer mold region formed by the four groups of mold plates 321 is changed, and the outer mold region always keeps a square structure which is concentric with the inner mold body 200, until the region between the outer mold region and the inner mold body 200 meets the requirement of the plastic pipe in a new direction.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The adjustable forming die head for the plastic pipeline is characterized by comprising a forming pipe head, an inner die body, an outer die mechanism and a cooling assembly, wherein the feeding end of the forming pipe head is communicated with the discharging end of plastic melting equipment in a coaxial and fixed connection mode, the inner die body/the outer die mechanism/the cooling assembly are arranged on the forming pipe head, the inner die body is matched with the outer die mechanism and used for providing a die for forming the square plastic pipeline, and the cooling assembly is used for providing flowing cooling water for the square plastic pipeline in the forming process.
2. The adjustable molding die head of the plastic pipeline as claimed in claim 1, wherein the molding tube head comprises a fixed shell, a feeding joint, a first fixed disk, a second fixed disk and a molding pipeline, the feeding joint is a circular pipeline structure with openings at two ends, a fixed step coaxially extends from one opening end of the feeding joint to the direction far away from the axis of the feeding joint, a fixed end cover is coaxially and fixedly arranged at the other opening end of the feeding joint, and the fixed step of the feeding joint is coaxially and fixedly connected with the discharge end of the plastic melting equipment through a fastening bolt;
the first fixed disk is of an annular plate structure, the first fixed disk and the end face, deviating from the feeding connector, of the fixed end cover are coaxially and fixedly connected, the forming pipeline is of a pipeline structure with openings at two ends, the forming pipeline and the end face, deviating from the feeding connector, of the first fixed disk are coaxially and fixedly connected, the second fixed disk is of an annular plate structure, and the second fixed disk and the end face, deviating from the feeding connector, of the forming pipeline are coaxially and fixedly connected;
the fixed shell is of a circular shell structure with an opening at one end and a closed end, the fixed shell is coaxially fixed on the outer circular surfaces of the first fixed disk and the second fixed disk in a fixed mode, and the closed end of the fixed shell is coaxially provided with a discharging connector communicated with the cavity of the forming pipeline.
3. The adjustable forming die head for the plastic pipeline as claimed in claim 2, wherein the inner die body is of a rectangular pipeline structure with openings at two ends, one end of the inner die body is a water inlet end and is located at one side of the closed end of the fixed shell, which is far away from the feeding joint, the other end of the inner die body is a connecting end, the end sequentially penetrates through a discharging joint arranged at the closed end of the fixed shell, an inner cavity of the fixed shell and is coaxially and fixedly connected with a fixed end cover arranged at the end part of the feeding joint, a connecting hole penetrating through the axial thickness of the fixed end cover is coaxially formed in the fixed end cover, and the connecting hole is used for communicating the inner die body and the feeding joint;
the side surface of the inner die body is provided with a feed hole penetrating through the thickness of the inner die body, the feed hole is used for communicating the inner cavity of the inner die body with the pipe cavity of the forming pipeline, the feed hole is close to the connecting end of the inner die body, and four groups of side surfaces of the inner die body are provided with feed holes;
the inner die body is also internally provided with a baffle which is positioned at one side of the feed hole departing from the feed joint and is close to the feed joint, and the baffle is used for dividing the inner cavity of the inner die body into two sections which are respectively a cooling section between the baffle and the water inlet end of the inner die body and a feeding section between the baffle and the connecting end of the inner die body.
4. The adjustable molding die head of the plastic pipeline according to claim 3, wherein the cooling assembly comprises a drainage pipeline and a vacuum pipeline, the vacuum pipeline is provided with two groups of a first vacuum pipeline and a second vacuum pipeline which are respectively a vacuum pipeline, the axial direction of the first vacuum pipeline is parallel to the open end face of the feeding joint, the first vacuum pipeline is fixedly arranged in the feeding joint, two pipe orifices of the first vacuum pipeline are fixed with the wall of the feeding joint, the outer circular surface of the feeding joint is provided with a suction hole communicated with one pipe orifice of the first vacuum pipeline, the hole orifice of the suction hole is matched and provided with a sealing end cover, the outer circular surface of the feeding joint is further provided with a relief hole communicated with the other pipe orifice of the first vacuum pipeline, the second vacuum pipeline and the feeding joint are coaxially arranged, one end of the second vacuum pipeline is fixedly connected with the baffle plate, and the other end of the second vacuum pipeline is fixedly connected with the first, the second vacuum pipeline is communicated with the first vacuum pipeline;
one end of the drainage pipeline is fixedly connected with the baffle, and the other end of the drainage pipeline sequentially penetrates through the first vacuum pipeline, the second vacuum pipeline and the avoidance hole formed in the outer circular surface of the feeding joint and then is positioned outside the forming pipe head;
and sealing gaskets are arranged among the drainage pipeline, the vacuum pipeline II and the avoidance holes arranged on the outer circular surface of the feeding joint, sealing gaskets are arranged among the vacuum pipeline II, the baffle and the drainage pipeline, and the interiors of the vacuum pipeline I and the vacuum pipeline II are vacuum structures.
5. The adjustable molding die head of the plastic pipeline according to claim 3 or 4, wherein a support block in a rectangular strip structure is coaxially arranged in the cooling section of the inner cavity of the inner die body, a connecting plate is arranged on the side surface of the support block, and the support block and the cooling section of the inner cavity of the inner die body are fixedly connected through the connecting plate.
6. The adjustable plastic pipe forming die head as claimed in claim 4, wherein the outer die mechanism comprises a thickness adjusting member and an outer die member, the outer die member is used for matching with the inner die body and providing a die for forming the square plastic pipe, the distance between the outer die member and the inner die body is adjustable, and the thickness adjusting member is used for providing power for the outer die member in the process of adjusting the distance between the outer die member and the inner die body;
the outer mould component include the mould board, drive assembly, the mould board is that the big face is on a parallel with the axial rectangular plate structure of shaping pipeline, the mould board sets up in the region between shaping pipeline inner chamber wall and the internal mold external surface and the one end of mould board and fixed end cover deviate from between the terminal surface of feed connection contact, contact between the inner chamber end of the other end and fixed shell, the mould board is provided with four groups and four groups mould boards constitute outer mould district jointly, outer mould district is square structure and the central line in outer mould district and the concrete central line of inner mould are located same straight line.
7. The adjustable molding die head of the plastic pipeline according to claim 6, wherein the driving assembly comprises a screw rod and a guide rod, the extension directions of the screw rod and the guide rod are both perpendicular to the axial direction of the molding pipeline, one end of the screw rod/the guide rod is fixedly connected with the mold plate, the other end of the screw rod/the guide rod penetrates through the side wall of the molding pipeline and is positioned in the area between the outer circular surface of the molding pipeline and the cavity wall of the inner cavity of the fixed shell, and the screw rod/the guide rod can displace along the extension direction of the screw rod/the guide rod;
the four driving assemblies are correspondingly provided with four groups, and when the four groups of driving assemblies synchronously displace along the extending direction of the driving assemblies, the area of an outer die area formed by the four groups of die plates can be changed, and the outer die area always keeps a square structure which is concentric with the inner die body.
8. The adjustable molding die head of a plastic pipeline according to claim 7, wherein the thickness adjusting member comprises a driving motor, a first power transmission assembly and a second power transmission assembly, the first power transmission assembly is used for receiving the power of the driving motor and transmitting the power to the second power transmission assembly, and the second power transmission assembly is used for receiving the power given by the second power transmission assembly and driving four groups of driving assemblies to synchronously displace along the extension direction of the second power transmission assembly;
the driving motor is fixedly arranged on the outer circular surface of the fixed shell, the power output end of the driving motor penetrates through the side wall of the fixed shell and is positioned in an area between the cavity wall of the inner cavity of the fixed shell and the outer circular surface of the forming pipeline, and the axial direction of the output shaft of the driving motor is consistent with the diameter direction of the fixed shell at the fixed point of the fixed shell.
9. The adjustable molding die head of the plastic pipeline according to claim 8, wherein the first power transmission assembly is arranged in an area between the cavity wall of the inner cavity of the fixed shell and the outer circular surface of the molded pipeline, the first power transmission assembly comprises a first transmission shaft, a first power transmission member and a second power transmission member, the axial direction of the first transmission shaft is parallel to the axial direction of the molded pipeline, one end of the first transmission shaft is movably connected with the first fixed disk, the other end of the first transmission shaft is movably connected with the second fixed disk, and the first transmission shaft can rotate around the axial direction of the first transmission shaft;
the first power transmission piece is arranged in the power output end of the driving motor and the first transmission shaft and is used for power connection transmission between the driving motor and the first transmission shaft, and the first power transmission piece is of a bevel gear power transmission structure;
the first power transmission part comprises a driving straight gear and a driven outer gear ring, the driving straight gear is coaxially and fixedly installed on the outer portion of the first transmission shaft, the driven outer gear ring is coaxially installed on the outer portion of the forming pipeline through a bearing, and the driving straight gear and the driven outer gear ring are meshed with each other.
10. The adjustable molding die head of the plastic pipeline according to claim 9, wherein the second power transmission assembly is disposed in an area between the inner cavity wall of the fixed housing and the outer circumferential surface of the molded pipeline, the second power transmission assembly comprises a mounting bracket, a second transmission shaft and a third transmission shaft, the mounting bracket is fixedly mounted on the outer circumferential surface of the molded pipeline, the axial direction of the second transmission shaft is parallel to the axial direction of the molded pipeline, the second transmission shaft is movably mounted on the mounting bracket and can rotate around the axial direction of the second transmission shaft, the second transmission shaft is further coaxially and fixedly provided with a receiving spur gear, and the receiving spur gear is meshed with the driven outer gear ring;
the axial direction of the third transmission shaft is parallel to the diameter direction of the formed pipeline at the straight line intersection point of the third transmission shaft, and the third transmission shaft is movably arranged on the mounting bracket and can rotate around the axial direction of the third transmission shaft;
a third power transmission part is arranged between the second transmission shaft and the third transmission shaft, power connection transmission is carried out between the second transmission shaft and the third transmission shaft through the third power transmission part, and the third power transmission part is of a bevel gear power transmission structure;
a fourth power transmission part is arranged between the third transmission shaft and a screw rod of the driving assembly, the fourth power transmission part comprises an input straight gear and an output straight gear, the input straight gear is coaxially and fixedly arranged outside the third transmission shaft, the output straight gear is coaxially sleeved outside the screw rod in a threaded mounting mode and is movably connected with the mounting bracket, the output straight gear rotates around the self axial direction and can pull the screw rod to displace along the self axial direction, and the output straight gear is meshed with the input straight gear;
four groups of power transmission assemblies are correspondingly arranged.
CN202010506060.6A 2020-06-05 2020-06-05 Adjustable forming die head for plastic pipeline Withdrawn CN111619090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010506060.6A CN111619090A (en) 2020-06-05 2020-06-05 Adjustable forming die head for plastic pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010506060.6A CN111619090A (en) 2020-06-05 2020-06-05 Adjustable forming die head for plastic pipeline

Publications (1)

Publication Number Publication Date
CN111619090A true CN111619090A (en) 2020-09-04

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Family Applications (1)

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CN202010506060.6A Withdrawn CN111619090A (en) 2020-06-05 2020-06-05 Adjustable forming die head for plastic pipeline

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113997632A (en) * 2020-09-28 2022-02-01 深圳市望盛科技有限公司 Equipment mold of special packaging box and processing method of special packaging box
CN117124567A (en) * 2023-10-10 2023-11-28 江苏乾锦塑业科技有限公司 Quick extrusion equipment of cable tube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113997632A (en) * 2020-09-28 2022-02-01 深圳市望盛科技有限公司 Equipment mold of special packaging box and processing method of special packaging box
CN113997632B (en) * 2020-09-28 2024-04-02 深圳市望盛科技有限公司 Processing equipment and processing method of special packaging box
CN117124567A (en) * 2023-10-10 2023-11-28 江苏乾锦塑业科技有限公司 Quick extrusion equipment of cable tube
CN117124567B (en) * 2023-10-10 2024-02-23 江苏乾锦塑业科技有限公司 Quick extrusion equipment of cable tube

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