Booster-type plastic pipe fitting forming machine
阅读说明:本技术 增压式塑料管件成型机 (Booster-type plastic pipe fitting forming machine ) 是由 陆永柱 祝磊 丁先虎 于 2019-11-24 设计创作,主要内容包括:本发明提供了增压式塑料管件成型机,其包括塑料熔化装置、管件成型装置,塑料熔化装置用于依次对塑料原材料进行加热熔化、杂质过滤后将熔融态塑料输送至管件成型装置内,管件成型装置用于接收熔融态塑料并使其成型为符合要求的管件形状;其依次对塑料原材料进行熔化、输送进给、水冷成型、定长切割并得到符合生产要求的管件,熔化过程中,可避免金属滤网被频繁更换而降低生产效率的情况发生;输送进给过程中,能避免连接管道内的熔融态塑料过多造成高压现象;水冷成型过程中,可对管件的内外壁进行冷却,冷却成型效果更佳;定长切割过程中,切割刀轮与管件之间保持相对静止状态,管件切断面光滑平整,质量更佳,更便于后续销售。(The invention provides a booster-type plastic pipe fitting forming machine, which comprises a plastic melting device and a pipe fitting forming device, wherein the plastic melting device is used for sequentially heating and melting plastic raw materials, filtering impurities and then conveying molten plastic into the pipe fitting forming device; the plastic raw material is sequentially melted, conveyed and fed, water-cooled and formed, and cut at a fixed length to obtain the pipe fitting meeting the production requirement, and the condition that the production efficiency is reduced due to frequent replacement of a metal filter screen can be avoided in the melting process; during the conveying and feeding process, the high-pressure phenomenon caused by excessive molten plastic in the connecting pipeline can be avoided; in the water-cooling forming process, the inner wall and the outer wall of the pipe fitting can be cooled, and the cooling forming effect is better; in the fixed-length cutting process, a relative static state is kept between the cutting knife wheel and the pipe fitting, the cut surface of the pipe fitting is smooth and flat, the quality is better, and the follow-up sale is more convenient.)
1. The booster-type plastic pipe fitting forming machine is characterized by comprising a plastic melting device and a pipe fitting forming device, wherein the plastic melting device is used for sequentially heating and melting plastic raw materials, filtering impurities and then conveying molten plastic into the pipe fitting forming device;
the plastic melting device comprises a main frame body, wherein a melting mechanism for heating and melting plastic raw materials and filtering impurities and a conveying mechanism for receiving molten plastic and conveying the molten plastic to the pipe fitting forming device are arranged on the main frame body;
the melting mechanism comprises a melting tank body and an impurity filtering component, wherein the melting tank body is vertically fixed on the main frame body and is used for heating and melting plastic raw materials and enabling the plastic to be in a molten state structure finally.
2. The booster-type plastic pipe fitting forming machine according to claim 1, wherein the impurity filtering member is used for filtering impurities from molten plastic, the impurity filtering member comprises an impurity removing pipeline and a packing auger, the impurity removing pipeline is of an obliquely arranged circular pipeline structure and is fixed on the main frame body, a lower pipe orifice of the impurity removing pipeline is provided with a first closed end cover in a matching manner, and an upper pipe orifice of the impurity removing pipeline is provided with a second closed end cover in a matching manner;
the outer circular surface of the impurity removing pipeline is connected and communicated with vertical connecting nozzles which are vertically arranged and close to the closed end cover I, the vertical connecting nozzles are provided with two groups of vertical connecting nozzles which are respectively positioned above the impurity removing pipeline and a vertical connecting nozzle II positioned below the impurity removing pipeline, the two groups of vertical connecting nozzles are coaxially arranged, a metal filter screen used for blocking impurities in molten plastic from passing through is arranged at the communicating position between the vertical connecting nozzle II and the impurity removing pipeline in a matching mode, and the vertical connecting nozzle I and the melting tank body are connected and communicated.
3. The supercharged plastic pipe fitting molding machine according to claim 2, characterized in that the outer circumferential surface of the impurity discharge pipeline is connected and communicated with an impurity discharge connector, the impurity discharge connector is close to the second closed end cover and is positioned below the impurity discharge pipeline, and the main frame body is further provided with an impurity collecting disc positioned right below the impurity discharge connector;
the blind end cover coaxial set up the through hole that runs through its thickness, auger and arrange and be coaxial between the miscellaneous pipeline, swing joint between the output of auger and the blind end two, the input of auger passes in proper order arranges miscellaneous pipeline, set up in the through hole of blind end cover one and lie in the below of arranging miscellaneous pipeline, the auger can rotate and the auger rotates and can pull impurity and carry to arranging miscellaneous connector orientation around self axial, the helicoid of auger evenly spaced sets up a plurality of groups and runs through its thickness and be used for the mobile hole that the molten state plastics passed through.
4. The booster-type plastic pipe fitting forming machine according to claim 3, wherein the conveying mechanism is located right below the melting mechanism, the conveying mechanism comprises a conveying pipeline, a material pushing screw and a conveying motor, the conveying pipeline is of a horizontally arranged circular pipeline structure and is fixed on the main frame body, a third closed end cover is installed at a pipe orifice of the conveying pipeline in a matched mode, a connecting support is arranged at the other pipe orifice of the conveying pipeline in a matched mode, a connecting nozzle is connected and communicated with the outer circular surface of the conveying pipeline, the connecting nozzle is located above the conveying pipeline and is close to the third closed end cover, and the connecting nozzle is connected and communicated with the second vertical connecting nozzle;
the pushing screw rod and the conveying pipeline are coaxially arranged, the three closed end covers are coaxially provided with extending holes penetrating through the thickness of the three closed end covers, the output ends of the pushing screw rods are movably connected with the connecting support, the input ends of the pushing screw rods sequentially penetrate through the conveying pipeline and are arranged in the extending holes of the three closed end covers and are positioned outside the conveying pipeline, the pushing screw rods can axially rotate around the pushing screw rods and can pull molten plastic to be conveyed towards the direction of the pipe openings of the conveying pipeline, wherein the connecting support is arranged on the conveying pipeline;
the axial direction of an output shaft of the conveying motor is parallel to the axial direction of the conveying pipeline and the conveying motor is fixed on the main frame body, a first power transmission piece is arranged between the power output end of the conveying motor and the input end of the pushing screw rod and power connection transmission is carried out between the power output end of the conveying motor and the input end of the pushing screw rod through the first power transmission piece, a second power transmission piece is arranged between the input end of the pushing screw rod and the input end of the packing auger and power connection transmission is carried out between the input end of the pushing screw rod and the input end of the packing auger through the second power transmission piece, the first power transmission piece is a belt transmission mechanism, and the second power.
5. The supercharged plastic pipe fitting molding machine according to claim 4, wherein the pipe fitting molding device comprises a raw material feeding mechanism, a pipe fitting molding mechanism and a pipe fitting cutting mechanism, the raw material feeding mechanism is used for receiving the molten plastic conveyed by the conveying mechanism and conveying the molten plastic to the pipe fitting molding mechanism, the pipe fitting molding mechanism is used for molding the molten plastic into a circular pipe fitting structure, and the pipe fitting cutting mechanism is used for cutting the molded circular pipe fitting into pipe fitting sections with required length;
the raw material feeding mechanism comprises a connecting pipeline, a feeding pipeline and a feeding piece, wherein the feeding pipeline is horizontally fixed on the main frame body and is positioned below the conveying pipeline, one pipe orifice of the feeding pipeline is provided with a fixed end cover in a matching way, the other pipe orifice of the feeding pipeline is provided with a fastening support in a matching way, the outer circular surface of the feeding pipeline is also connected and communicated with a communicating nozzle, the communicating nozzle is positioned right above the feeding pipeline, and the fixed end cover is coaxially provided with an avoiding hole penetrating through the thickness of the fixed end cover;
one end of the connecting pipeline is fixedly connected and communicated with the pipe orifice of the conveying pipeline, which is provided with the connecting bracket, and the other end of the connecting pipeline is fixedly connected and communicated with the connecting nozzle;
the feeding piece comprises a feeding screw rod, a feeding motor and a pushing plug, an output shaft of the feeding motor and the feeding screw rod are coaxially arranged with the feeding pipeline, an output end of the feeding screw rod is movably connected with the fastening bracket, and an input end of the feeding screw rod penetrates through the feeding pipeline and a yielding hole arranged in the fixed end cover and is positioned outside the feeding pipeline;
the feeding motor is fixed on the main frame body, a coupler is arranged between the power output end of the feeding motor and the input end of the feeding screw rod, and power is connected and transmitted between the power output end of the feeding motor and the input end of the feeding screw rod through the coupler;
the pushing plug is of a circular piston structure matched with the inner cavity of the feeding pipeline, the pushing plug is located in the feeding pipeline, a sealed sliding guide fit is formed between the pushing plug and the feeding pipeline, the pushing plug is further coaxially installed outside the feeding screw rod through a nut, the initial position of the pushing plug is close to the fixed end cover, and the feeding screw rod rotates around the axial direction of the feeding screw rod and can pull the pushing plug to displace along the axial direction of the feeding screw rod.
6. The booster-type plastic pipe molding machine according to claim 5, wherein a first heating element for heating the conveying pipe and keeping the plastic in a molten state is fittingly installed outside the conveying pipe;
and a second heating element which is used for heating the feeding pipeline and enabling the plastic to be always kept in a molten state is arranged outside the feeding pipeline in a matched mode.
7. The supercharged plastic pipe fitting-molding machine as claimed in claim 5, wherein said connecting pipe is provided with a pressure relief member for relieving the molten plastic in the connecting pipe during the process of pushing the plug to block the access nozzle;
the pressure relief piece comprises a pressure relief pipeline, a pressure relief plug and a pressure relief spring, the pressure relief pipeline is of a circular pipeline structure with one open end and one closed end, the pressure relief pipeline is horizontally fixed on the main frame body, and the open end of the pressure relief pipeline is also communicated with the connecting pipeline;
the pressure relief plug is of a circular piston structure matched with the inner cavity of the pressure relief pipeline, is positioned in the pressure relief pipeline and forms sealed sliding guide fit between the pressure relief plug and the pressure relief pipeline;
one end of the pressure relief spring is fixedly connected with the cavity bottom of the pressure relief pipeline, the other end of the pressure relief spring is fixedly connected with the pressure relief plug, the pressure relief plug is driven by the elasticity of the pressure relief spring to move away from the cavity bottom of the pressure relief pipeline, and the initial position of the pressure relief plug is located at the connection position between the pressure relief pipeline and the connecting pipeline.
8. The supercharged plastic pipe fitting molding machine according to claim 5, wherein the pipe fitting molding mechanism comprises an outer mold body, an inner mold core and a water cooling pipeline, the outer mold body is of a pipeline structure with openings at two ends and coaxial arrangement with the feeding pipeline, the outer mold body can be divided into two parts along the self axial direction and respectively comprises a receiving section and a molding section, the receiving section is of a circular truncated cone structure, the molding section is of a cylindrical structure, the large end of the receiving section is communicated with a pipe orifice of the feeding pipeline provided with a fastening bracket, and the small end of the receiving section is communicated with the molding section;
the inner die core is of a circular cylinder structure with an opening at one end and a closed end, the inner die core is coaxially positioned in the outer die body, the closed end of the inner die core faces the large end of the circular truncated cone section of the outer die body, and the open end of the inner die core penetrates through the cylindrical section of the outer die body and is positioned outside the outer die body;
the water cooling pipeline comprises a water inlet pipeline I, a water inlet pipeline II, an inner wall cooling water pipe and an outer wall cooling water pipe, wherein the water inlet pipeline I is of a closed circular pipeline structure, the water inlet pipeline I is fixed on the main frame body, a coaxial ring of the water inlet pipeline is wound outside the outer mold body, one end of the water inlet pipeline II is connected and communicated with external water supply equipment, and the other end of the water inlet pipeline II is connected and communicated with the water inlet pipeline;
one end of the inner wall cooling water pipe is connected and communicated with the water inlet pipeline, the other end of the inner wall cooling water pipe penetrates through the outer die body and is fixedly connected and communicated with the inner die core, and a plurality of groups of inner wall cooling water pipes are arranged in an array mode along the circumferential direction of the inner die core;
the outer mould is characterized in that the free end of the cylindrical section of the outer mould body is coaxially provided with a spraying cylinder which is of a circular shell structure with two closed ends and an inner cavity, a plurality of groups of spraying holes penetrating through the thickness of the spraying cylinder are uniformly arranged on the inner annular surface of the spraying cylinder at intervals, one end of an outer wall cooling water pipe is connected and communicated with a water inlet pipeline, the other end of the outer wall cooling water pipe is connected and communicated with the spraying cylinder, and the outer wall cooling water pipe is provided with a plurality of groups in an array mode along the.
9. The supercharged plastic pipe molding machine according to claim 8, wherein the pipe cutting mechanism is located on a side of the pipe molding mechanism facing away from the feeding pipe, and comprises a pipe and a pipe cutting member which are synchronously displaced, wherein the pipe cutting member is used for performing fixed-length cutting treatment on the circular pipe after being cooled and molded and output, and the synchronous displacement member is used for keeping the pipe cutting member and the circular pipe which is continuously output in a relatively static state;
the synchronous displacement component comprises a fixed support, a baffle, a slide rod, a return spring, a mounting support and a guide plate, the fixed support is fixedly connected with the main frame body, the extending direction of the slide rod is parallel to the axial direction of the inner die core, the slide rod is movably mounted on the fixed support and forms sliding guide fit between the fixed support and the main frame body, the end part of the slide rod facing the inner die core is provided with two groups of abutting steps, and the slide rods are provided with two groups of abutting steps;
the reset springs are sleeved outside the slide rod and are correspondingly provided with two groups, one end of each reset spring is abutted against the abutting step, the other end of each reset spring is abutted against the fixed support, and the elastic force of each reset spring drives the slide rod to move close to the inner die core;
the large surface of the baffle is perpendicular to the extending direction of the sliding rod, the baffle is fixed at the end part of the sliding rod, which is far away from the inner die core, the baffle can be contacted with a round pipe fitting which is cooled, molded and continuously output outwards, and an inductor for inducing whether the round pipe fitting is contacted with the baffle is arranged on the baffle;
the mounting bracket is fixedly mounted outside the sliding rod, the sliding rod moves and pulls the mounting bracket to move synchronously, the pipe cutting component is mounted on the mounting bracket, and the mounting bracket moves and pulls the pipe cutting component to move synchronously;
the guide plate is obliquely fixed on the fixed bracket, and the highest point of the guide plate is positioned right below the circular pipe fitting which is cooled, formed and continuously output outwards;
the baffle plate is provided with water outlet holes which are coaxially arranged with the inner die core.
10. The supercharged plastic pipe molding machine according to claim 9, wherein the pipe cutting member comprises a driving motor, a mounting shaft, a support frame, a cutting motor and a cutter wheel, wherein the axial directions of an output shaft of the driving motor and the mounting shaft are both parallel to the extending direction of the slide bar, the driving motor is fixed on the mounting frame, the mounting shaft is movably arranged on the mounting frame and can rotate around the axial direction of the mounting shaft, the support frame is fixed outside the mounting shaft, and the mounting shaft rotates and pulls the support frame to rotate synchronously;
a third power transmission part is arranged between the power output end of the driving motor and the mounting shaft, and the power transmission part and the mounting shaft are in power connection transmission through the third power transmission part, and the third power transmission part is of a belt transmission structure;
the axial directions of an output shaft of the cutting motor and the cutting knife wheel are both parallel to the extending direction of the sliding rod, the cutting motor is fixed on the supporting frame, the cutting knife wheel is movably arranged on the supporting frame and can rotate around the axial direction of the cutting motor, a power transmission piece IV is arranged between the power output end of the cutting motor and the cutting knife wheel, power connection transmission is carried out between the power output end of the cutting motor and the cutting knife wheel through the power transmission piece IV, and the power transmission piece IV is of a belt transmission structure;
the distance between the cutting knife wheel and the baffle is equal to the length of the pipe fitting meeting the production requirement.
Technical Field
The invention relates to the field of plastic processing, in particular to production equipment of a plastic pipe fitting.
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 molding is divided into melt molding and solid phase molding according to different physical states in the molding process, the melt molding is a method for heating plastic to a temperature higher than a melting point so that the plastic is in a molten state and then molding the plastic, the solid phase molding is a molding method which is performed when the plastic is below the melting temperature and is in a softened state, and the processing process of a plastic pipe fitting is generally as follows: the present invention relates to a plastic pipe production apparatus, and more particularly, to a plastic pipe production apparatus, which comprises an extruder for extruding a molten material into a predetermined mold, a water bath for further cooling and shaping the material after the mold is shaped and cooled, and a cutting or winding process, wherein the existing plastic pipe production apparatus has disadvantages, such as clogging caused by semi-solidification of the molten plastic during the melting of the plastic material, and frequent replacement of a metal filter screen for filtering impurities, and during the cutting of the plastic material after the plastic molding, the plastic pipe is continuously fed to cause the cutting surface of the pipe to have an irregular structure and poor quality, or the plastic pipe is periodically fed, the cutting surface of the pipe is uniform, but the power mechanism for pushing the plastic pipe is worn more and has low cutting efficiency The pipe fitting meeting the production requirement is obtained by fixed-length cutting treatment, in the melting process, the melted plastic can be subjected to impurity filtration treatment by a metal filter screen when flowing, and impurities can be dragged and conveyed away by a packing auger after being blocked by the metal filter screen, so that the situations that the metal filter screen is frequently replaced and maintained, the production efficiency is reduced, and manpower and material resources are wasted are avoided; in the conveying and feeding process, the pressure relief piece can achieve the purpose of relieving the pressure of the molten plastic in the connecting pipeline when the connector nozzle is blocked by the pushing plug, so that the phenomenon of high pressure caused by excessive molten plastic in the connecting pipeline is avoided; in the water-cooling forming process, the inner wall and the outer wall of the pipe fitting can be fully cooled due to the existence of the inner wall cooling water pipe and the outer wall cooling water pipe, so that the cooling forming effect is better; in the fixed-length cutting process, the cutting knife wheel always keeps a relative static state with the pipe fitting, so that the obtained pipe fitting cut-off surface is smooth and flat, the quality is better, and subsequent sales are more convenient.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide production equipment for plastic pipes, which sequentially carries out melting, conveying and feeding, water-cooling forming and fixed-length cutting treatment on plastic raw materials, and obtains pipes meeting production requirements, wherein the obtained pipe sections are smooth and flat, the quality is better, and the subsequent sales are more convenient.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.
The booster-type plastic pipe fitting forming machine comprises a plastic melting device and a pipe fitting forming device, wherein the plastic melting device is used for sequentially heating and melting plastic raw materials, filtering impurities and then conveying molten plastic into the pipe fitting forming device, and the pipe fitting forming device is used for receiving the molten plastic and forming the molten plastic into a pipe fitting shape meeting requirements.
The technical scheme is further improved and optimized.
The plastic melting device comprises a main frame body, wherein a melting mechanism for heating and melting plastic raw materials and filtering impurities and a conveying mechanism for receiving molten plastic and conveying the molten plastic to the pipe fitting forming device are arranged on the main frame body;
the melting mechanism comprises a melting tank body and an impurity filtering component, wherein the melting tank body is vertically fixed on the main frame body and is used for heating and melting plastic raw materials and enabling the plastic to be in a molten state structure finally.
The technical scheme is further improved and optimized.
The impurity filtering component is used for filtering impurities of molten plastics, and comprises an impurity discharging pipeline and a packing auger, wherein the impurity discharging pipeline is of a circular pipeline structure which is obliquely arranged and is fixed on the main frame body, a lower pipe opening of the impurity discharging pipeline is provided with a first closed end cover in a matching way, and an upper pipe opening of the impurity discharging pipeline is provided with a second closed end cover in a matching way;
the outer circular surface of the impurity removing pipeline is connected and communicated with vertical connecting nozzles which are vertically arranged and close to the first closed end cover, the vertical connecting nozzles are provided with two groups which are respectively a first vertical connecting nozzle positioned above the impurity removing pipeline and a second vertical connecting nozzle positioned below the impurity removing pipeline, the two groups of vertical connecting nozzles are coaxially arranged, a metal filter screen for blocking impurities in molten plastic from passing through is arranged at the communicated position between the second vertical connecting nozzle and the impurity removing pipeline in a matching manner, and the first vertical connecting nozzle is connected and communicated with the melting tank body;
the outer circle surface of the impurity removing pipeline is communicated with an impurity removing connecting nozzle, the impurity removing connecting nozzle is close to the second closed end cover and is positioned below the impurity removing pipeline, and an impurity collecting disc positioned right below the impurity removing connecting nozzle is further arranged on the main frame body;
the blind end cover coaxial set up the through hole that runs through its thickness, auger and arrange and be coaxial between the miscellaneous pipeline, swing joint between the output of auger and the blind end two, the input of auger passes in proper order arranges miscellaneous pipeline, set up in the through hole of blind end cover one and lie in the below of arranging miscellaneous pipeline, the auger can rotate and the auger rotates and can pull impurity and carry to arranging miscellaneous connector orientation around self axial, the helicoid of auger evenly spaced sets up a plurality of groups and runs through its thickness and be used for the mobile hole that the molten state plastics passed through.
The technical scheme is further improved and optimized.
The conveying mechanism is positioned right below the melting mechanism and comprises a conveying pipeline, a pushing screw and a conveying motor, the conveying pipeline is of a horizontally arranged circular pipeline structure and is fixed on the main frame body, a third closed end cover is installed at one pipe orifice of the conveying pipeline in a matched mode, a connecting support is arranged at the other pipe orifice in a matched mode, a connecting nozzle is communicated with the outer circular surface of the conveying pipeline in a connected mode, the connecting nozzle is positioned above the conveying pipeline and is close to the third closed end cover, and the connecting nozzle is communicated with the second vertical connecting nozzle;
the pushing screw rod and the conveying pipeline are coaxially arranged, the three closed end covers are coaxially provided with extending holes penetrating through the thickness of the three closed end covers, the output ends of the pushing screw rods are movably connected with the connecting support, the input ends of the pushing screw rods sequentially penetrate through the conveying pipeline and are arranged in the extending holes of the three closed end covers and are positioned outside the conveying pipeline, the pushing screw rods can axially rotate around the pushing screw rods and can pull molten plastic to be conveyed towards the direction of the pipe openings of the conveying pipeline, wherein the connecting support is arranged on the conveying pipeline;
the axial direction of an output shaft of the conveying motor is parallel to the axial direction of the conveying pipeline and the conveying motor is fixed on the main frame body, a first power transmission piece is arranged between the power output end of the conveying motor and the input end of the pushing screw rod and power connection transmission is carried out between the power output end of the conveying motor and the input end of the pushing screw rod through the first power transmission piece, a second power transmission piece is arranged between the input end of the pushing screw rod and the input end of the packing auger and power connection transmission is carried out between the input end of the pushing screw rod and the input end of the packing auger through the second power transmission piece, the first power transmission piece is a belt transmission mechanism, and the second power.
The technical scheme is further improved and optimized.
The pipe fitting forming device comprises a raw material feeding mechanism, a pipe fitting forming mechanism and a pipe fitting cutting mechanism, wherein the raw material feeding mechanism is used for receiving the molten plastic conveyed by the conveying mechanism and conveying the molten plastic to the pipe fitting forming mechanism;
the raw material feeding mechanism comprises a connecting pipeline, a feeding pipeline and a feeding piece, wherein the feeding pipeline is horizontally fixed on the main frame body and is positioned below the conveying pipeline, one pipe orifice of the feeding pipeline is provided with a fixed end cover in a matching way, the other pipe orifice of the feeding pipeline is provided with a fastening support in a matching way, the outer circular surface of the feeding pipeline is also connected and communicated with a communicating nozzle, the communicating nozzle is positioned right above the feeding pipeline, and the fixed end cover is coaxially provided with an avoiding hole penetrating through the thickness of the fixed end cover;
one end of the connecting pipeline is fixedly connected and communicated with the pipe orifice of the conveying pipeline, which is provided with the connecting bracket, and the other end of the connecting pipeline is fixedly connected and communicated with the connecting nozzle;
the feeding piece comprises a feeding screw rod, a feeding motor and a pushing plug, an output shaft of the feeding motor and the feeding screw rod are coaxially arranged with the feeding pipeline, an output end of the feeding screw rod is movably connected with the fastening bracket, and an input end of the feeding screw rod penetrates through the feeding pipeline and a yielding hole arranged in the fixed end cover and is positioned outside the feeding pipeline;
the feeding motor is fixed on the main frame body, a coupler is arranged between the power output end of the feeding motor and the input end of the feeding screw rod, and power is connected and transmitted between the power output end of the feeding motor and the input end of the feeding screw rod through the coupler;
the pushing plug is of a circular piston structure matched with the inner cavity of the feeding pipeline, the pushing plug is located in the feeding pipeline, a sealed sliding guide fit is formed between the pushing plug and the feeding pipeline, the pushing plug is further coaxially installed outside the feeding screw rod through a nut, the initial position of the pushing plug is close to the fixed end cover, and the feeding screw rod rotates around the axial direction of the feeding screw rod and can pull the pushing plug to displace along the axial direction of the feeding screw rod.
The technical scheme is further improved and optimized.
A first heating element for heating the conveying pipeline and keeping the plastic in a molten state all the time is arranged outside the conveying pipeline in a matched manner;
and a second heating element which is used for heating the feeding pipeline and enabling the plastic to be always kept in a molten state is arranged outside the feeding pipeline in a matched mode.
The technical scheme is further improved and optimized.
The connecting pipeline is provided with a pressure relief piece for relieving pressure of molten plastic in the connecting pipeline in the process of pushing the plug to block the connecting nozzle;
the pressure relief piece comprises a pressure relief pipeline, a pressure relief plug and a pressure relief spring, the pressure relief pipeline is of a circular pipeline structure with one open end and one closed end, the pressure relief pipeline is horizontally fixed on the main frame body, and the open end of the pressure relief pipeline is also communicated with the connecting pipeline;
the pressure relief plug is of a circular piston structure matched with the inner cavity of the pressure relief pipeline, is positioned in the pressure relief pipeline and forms sealed sliding guide fit between the pressure relief plug and the pressure relief pipeline;
one end of the pressure relief spring is fixedly connected with the cavity bottom of the pressure relief pipeline, the other end of the pressure relief spring is fixedly connected with the pressure relief plug, the pressure relief plug is driven by the elasticity of the pressure relief spring to move away from the cavity bottom of the pressure relief pipeline, and the initial position of the pressure relief plug is located at the connection position between the pressure relief pipeline and the connecting pipeline.
The technical scheme is further improved and optimized.
The pipe fitting forming mechanism comprises an outer die body, an inner die core and a water cooling pipeline, wherein the outer die body is of a pipeline structure with two open ends and is coaxially arranged with a feeding pipeline, the outer die body can be divided into two parts along the axial direction of the outer die body, the two parts are respectively a receiving section and a forming section, the receiving section is of a round platform structure, the forming section is of a cylindrical structure, the large end of the receiving section is communicated with a pipe orifice of the feeding pipeline, which is provided with a fastening support, and the small end of the receiving section is communicated with the forming section;
the inner die core is of a circular cylinder structure with an opening at one end and a closed end, the inner die core is coaxially positioned in the outer die body, the closed end of the inner die core faces the large end of the circular truncated cone section of the outer die body, and the open end of the inner die core penetrates through the cylindrical section of the outer die body and is positioned outside the outer die body;
the water cooling pipeline comprises a water inlet pipeline I, a water inlet pipeline II, an inner wall cooling water pipe and an outer wall cooling water pipe, wherein the water inlet pipeline I is of a closed circular pipeline structure, the water inlet pipeline I is fixed on the main frame body, a coaxial ring of the water inlet pipeline is wound outside the outer mold body, one end of the water inlet pipeline II is connected and communicated with external water supply equipment, and the other end of the water inlet pipeline II is connected and communicated with the water inlet pipeline;
one end of the inner wall cooling water pipe is connected and communicated with the water inlet pipeline, the other end of the inner wall cooling water pipe penetrates through the outer die body and is fixedly connected and communicated with the inner die core, and a plurality of groups of inner wall cooling water pipes are arranged in an array mode along the circumferential direction of the inner die core;
the outer mould is characterized in that the free end of the cylindrical section of the outer mould body is coaxially provided with a spraying cylinder which is of a circular shell structure with two closed ends and an inner cavity, a plurality of groups of spraying holes penetrating through the thickness of the spraying cylinder are uniformly arranged on the inner annular surface of the spraying cylinder at intervals, one end of an outer wall cooling water pipe is connected and communicated with a water inlet pipeline, the other end of the outer wall cooling water pipe is connected and communicated with the spraying cylinder, and the outer wall cooling water pipe is provided with a plurality of groups in an array mode along the.
The technical scheme is further improved and optimized.
The pipe cutting mechanism is positioned on one side of the pipe forming mechanism, which is far away from the feeding pipeline, and comprises a synchronous displacement pipe and a pipe cutting component, the pipe cutting component is used for performing fixed-length cutting treatment on the circular pipe subjected to cooling forming output, and the synchronous displacement component is used for keeping the pipe cutting component and the circular pipe subjected to continuous output in a relatively static state;
the synchronous displacement component comprises a fixed support, a baffle, a slide rod, a return spring, a mounting support and a guide plate, the fixed support is fixedly connected with the main frame body, the extending direction of the slide rod is parallel to the axial direction of the inner die core, the slide rod is movably mounted on the fixed support and forms sliding guide fit between the fixed support and the main frame body, the end part of the slide rod facing the inner die core is provided with two groups of abutting steps, and the slide rods are provided with two groups of abutting steps;
the reset springs are sleeved outside the slide rod and are correspondingly provided with two groups, one end of each reset spring is abutted against the abutting step, the other end of each reset spring is abutted against the fixed support, and the elastic force of each reset spring drives the slide rod to move close to the inner die core;
the large surface of the baffle is perpendicular to the extending direction of the sliding rod, the baffle is fixed at the end part of the sliding rod, which is far away from the inner die core, the baffle can be contacted with a round pipe fitting which is cooled, molded and continuously output outwards, and an inductor for inducing whether the round pipe fitting is contacted with the baffle is arranged on the baffle;
the mounting bracket is fixedly mounted outside the sliding rod, the sliding rod moves and pulls the mounting bracket to move synchronously, the pipe cutting component is mounted on the mounting bracket, and the mounting bracket moves and pulls the pipe cutting component to move synchronously;
the guide plate is obliquely fixed on the fixed bracket, and the highest point of the guide plate is positioned right below the circular pipe fitting which is cooled, formed and continuously output outwards;
the baffle plate is provided with water outlet holes which are coaxially arranged with the inner die core.
The technical scheme is further improved and optimized.
The pipe cutting component comprises a driving motor, an installation shaft, a support frame, a cutting motor and a cutting knife wheel, wherein the axial directions of an output shaft of the driving motor and the installation shaft are parallel to the extending direction of the sliding rod, the driving motor is fixed on the installation support, the installation shaft is movably arranged on the installation support and can rotate around the axial direction of the installation shaft, the support frame is fixed outside the installation shaft, and the installation shaft rotates and pulls the support frame to rotate synchronously;
a third power transmission part is arranged between the power output end of the driving motor and the mounting shaft, and the power transmission part and the mounting shaft are in power connection transmission through the third power transmission part, and the third power transmission part is of a belt transmission structure;
the axial directions of an output shaft of the cutting motor and the cutting knife wheel are both parallel to the extending direction of the sliding rod, the cutting motor is fixed on the supporting frame, the cutting knife wheel is movably arranged on the supporting frame and can rotate around the axial direction of the cutting motor, a power transmission piece IV is arranged between the power output end of the cutting motor and the cutting knife wheel, power connection transmission is carried out between the power output end of the cutting motor and the cutting knife wheel through the power transmission piece IV, and the power transmission piece IV is of a belt transmission structure;
the distance between the cutting knife wheel and the baffle is equal to the length of the pipe fitting meeting the production requirement.
Compared with the prior art, the invention has the beneficial effects that the plastic raw material is sequentially melted, conveyed and fed, water-cooled and formed, and cut to a fixed length to obtain the pipe fitting meeting the production requirement, in the melting process, the melted plastic can be subjected to impurity filtering treatment by the metal filter screen when flowing, and the impurities can be dragged and conveyed away by the auger after being blocked by the metal filter screen, so that the metal filter screen is prevented from being frequently replaced and maintained, the production efficiency is reduced, and the manpower and material resources are wasted; in the conveying and feeding process, the pressure relief piece can achieve the purpose of relieving the pressure of the molten plastic in the connecting pipeline when the connector nozzle is blocked by the pushing plug, so that the phenomenon of high pressure caused by excessive molten plastic in the connecting pipeline is avoided; in the water-cooling forming process, the inner wall and the outer wall of the pipe fitting can be fully cooled due to the existence of the inner wall cooling water pipe and the outer wall cooling water pipe, so that the cooling forming effect is better; in the fixed-length cutting process, the cutting knife wheel always keeps a relative static state with the pipe fitting, so that the obtained pipe fitting cut-off surface is smooth and flat, the quality is better, and subsequent sales are more convenient.
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 structural diagram of the present invention.
Fig. 4 is a schematic structural view of the plastic melting apparatus of the present invention.
Fig. 5 is a schematic view of the structure of the plastic melting apparatus of the present invention.
Fig. 6 is a schematic structural view of the melting mechanism of the present invention.
Fig. 7 is a schematic cross-sectional view of the trash removal duct of the present invention.
Fig. 8 is a schematic structural view of the conveying mechanism of the present invention.
Fig. 9 is a partial structural schematic view of the conveying mechanism of the present invention.
Fig. 10 is a schematic structural diagram of the pipe forming apparatus of the present invention.
Fig. 11 is a schematic structural diagram of the pipe forming apparatus of the present invention.
Fig. 12 is a schematic structural diagram of the pipe forming apparatus of the present invention.
Fig. 13 is a schematic structural view of the material feeding mechanism of the present invention.
FIG. 14 is a schematic view of the feed conduit of the present invention in cooperation with a feed member.
Fig. 15 is a schematic view of the mating of the connecting tube to the pressure relief member of the present invention.
Fig. 16 is a schematic cross-sectional view of a connecting tube and a pressure relief member of the present invention.
Fig. 17 is a schematic diagram of the fitting of the pipe forming mechanism and the pipe cutting mechanism according to the present invention.
Fig. 18 is a schematic structural diagram of a pipe forming mechanism according to the present invention.
Fig. 19 is a schematic cross-sectional view of the pipe forming mechanism of the present invention.
Fig. 20 is a fitting view of the pipe forming mechanism of the present invention and a pipe.
Fig. 21 is a schematic structural diagram of the pipe cutting mechanism of the present invention.
FIG. 22 is a schematic structural diagram of a synchronous displacement member of the present invention.
FIG. 23 is a schematic structural diagram of a synchronous displacement member according to the present invention.
Fig. 24 is a schematic structural view of the pipe cutting member of the present invention.
Detailed Description
The invention has the advantages that the plastic raw material is melted, conveyed and fed, water-cooled and formed and cut at a fixed length in sequence, so that the pipe fitting meeting the production requirement can be obtained, in the melting process, the melted plastic can be subjected to impurity filtering treatment by the metal filter screen when flowing, and impurities can be dragged and conveyed away by the auger after being blocked by the metal filter screen, thereby avoiding the situations that the metal filter screen is frequently replaced and maintained, the production efficiency is reduced and manpower and material resources are wasted; in the conveying and feeding process, the pressure relief piece can achieve the purpose of relieving the pressure of the molten plastic in the connecting pipeline when the connector nozzle is blocked by the pushing plug, so that the phenomenon of high pressure caused by excessive molten plastic in the connecting pipeline is avoided; in the water-cooling forming process, the inner wall and the outer wall of the pipe fitting can be fully cooled due to the existence of the inner wall cooling water pipe and the outer wall cooling water pipe, so that the cooling forming effect is better; in the fixed-length cutting process, the cutting knife wheel always keeps a relative static state with the pipe fitting, so that the obtained pipe fitting cut-off surface is smooth and flat, the quality is better, and subsequent sales are more convenient.
A pressurizing type plastic pipe fitting forming machine comprises a
The
The
The impurity filtering component is used for filtering impurities of molten plastics, and comprises an impurity discharging pipeline 112 and a packing auger 113, wherein the impurity discharging pipeline 112 is of a circular pipeline structure which is obliquely arranged, the impurity discharging pipeline 112 is fixed on the main frame body, a first closed end cover is installed at a lower pipe opening of the impurity discharging pipeline 112 in a matching mode, and a second closed end cover is installed at an upper pipe opening of the impurity discharging pipeline 112 in a matching mode.
The outer circular surface of the impurity discharge pipeline 112 is connected and communicated with vertical connecting nozzles which are vertically arranged and close to the first closed end cover, the vertical connecting nozzles are provided with two groups of vertical connecting nozzles 1121 and 1122 which are respectively positioned above the impurity discharge pipeline 112 and below the impurity discharge pipeline 112, the two groups of vertical connecting nozzles are coaxially arranged, a metal filter screen used for blocking impurities in molten plastic from passing through is arranged at a communicating position between the vertical connecting nozzles 1122 and the impurity discharge pipeline 112 in a matching mode, and the vertical connecting nozzles 1121 and the melting tank body 111 are connected and communicated.
The outer circle surface of the impurity discharging pipeline 112 is communicated with an impurity discharging connector 1123, the impurity discharging connector 1123 is close to the second closed end cover, the impurity discharging connector 1123 is positioned below the impurity discharging pipeline 112, and an impurity collecting tray 114 positioned right below the impurity discharging connector 1123 is further arranged on the main frame body.
The coaxial wear-to-establish hole that runs through its thickness of offering of blind end cover one, auger 113 and arrange and be coaxial between the miscellaneous pipeline 112 and arrange, swing joint between auger 113's output and the blind end two, auger 113's input passes row miscellaneous pipeline 112 in proper order, set up in the wear-to-establish hole of blind end cover one and lie in row miscellaneous pipeline 112's below, auger 113 can rotate around self axial and auger 113 rotates and can pull impurity and to arrange miscellaneous connector 1123 direction and carry, auger 113's helicoid uniform spacing has seted up a plurality of groups and has run through its thickness and be used for the flow hole that the molten state plastics passed through.
The plastic raw material is heated and melted in the melting tank body 111 to be molten and then flows into the impurity removing pipeline 112 through the first vertical connecting nozzle 1121, then the molten plastic sequentially passes through the flow hole formed in the spiral surface of the packing auger 113, the metal filter screen and the second vertical connecting nozzle 1122 to continuously flow downwards, impurities in the molten plastic can be stopped and remained on the metal filter screen, meanwhile, the packing auger 113 can rotate around the axial direction of the packing auger 113 and drag the impurities to be conveyed towards the impurity removing connecting nozzle 1123, the impurities can fall into the impurity collecting disc 114 through the impurity removing connecting nozzle 1123, and in the process, the impurities on the metal filter screen can be conveyed and discharged by the packing auger 113 all the time, so that the metal filter screen does not need to be frequently replaced and removed, and the impurity removing process.
The conveying
The pushing
The axial direction of the output shaft of the conveying
Preferably, in order to avoid the solidification and blockage phenomenon when the molten plastic flows in the conveying
The molten plastic flows into the conveying
The
The raw
One end of the connecting
The feeding piece comprises a feeding screw rod 216, a feeding
The feeding
The pushing plug 218 is a circular piston structure matched with the inner cavity of the feeding pipe 215, the pushing plug 218 is located in the feeding pipe 215 and forms sealed sliding guide fit between the feeding pipe 215 and the pushing plug 218, the pushing plug 218 is further coaxially installed outside the feeding screw rod 216 through a nut, the initial position of the pushing plug 218 is close to a fixed end cover, and the feeding screw rod 216 rotates around the axial direction of the feeding screw rod 216 and can pull the pushing plug 218 to displace along the axial direction of the feeding screw rod 216.
Preferably, in order to avoid clogging due to semi-solidification of the molten plastic during its transit in the feeding duct 215, the outside of said feeding duct 215 is fitted with a
Molten plastic flows into the feeding pipe 215 through the connecting
More specifically, in the process of pushing the molten plastic by the push plug 218 in a reciprocating manner, the push plug 218 plugs the nozzle 2151, and in the plugging process, the molten plastic cannot flow into the feeding pipe 215, and meanwhile, the pushing
The pressure relief piece comprises a
The
One end of the
When the push plug 218 closes the connection nozzle 2151, the molten plastic is gathered in the
Pipe fitting forming
The
The water-cooling pipeline comprises a first
One end of the inner wall cooling
The
When the molten plastic passes through the inner wall cooling
in addition, the cooling water sprayed to the outer wall of the pipe fitting flows out from the gap between the spraying cylinder and the outer wall of the formed pipe fitting, and the water in the
The
The synchronous displacement member 2310 comprises a fixing
The reset springs 2315 are sleeved outside the
The large surface of the
The mounting
The
The pipe cutting member 2320 comprises a driving
A third
The axial directions of the output shaft of the cutting
The distance between the cutting
The round pipe fitting after water-cooling forming by the pipe fitting forming
in addition, in the cutting process, the circular pipe can be continuously output outwards, so that the
Preferably, in order to avoid that the cooling water in the
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