CN205416291U - Plastic extrusion mould - Google Patents
Plastic extrusion mould Download PDFInfo
- Publication number
- CN205416291U CN205416291U CN201521046846.5U CN201521046846U CN205416291U CN 205416291 U CN205416291 U CN 205416291U CN 201521046846 U CN201521046846 U CN 201521046846U CN 205416291 U CN205416291 U CN 205416291U
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- Prior art keywords
- extrusion die
- mould
- plastics extrusion
- chamber
- outlet
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Abstract
The utility model provides a plastic extrusion mould belongs to the plastic tubing production field, including fixed mould and play bush, thereby the fixed mould can be dismantled each other with the play bush and connect shape moulding utensil cover, be provided with the shaping plug in the mold sleeve, the outer wall of shaping plug and mold sleeve's inner wall form into the die cavity jointly, it clamp -ons chamber, reposition of redundant personnel chamber and extrudes the chamber including what feed through in proper order to become the die cavity, go out be provided with on the bush with become air current hole that the die cavity feeds through and with the vacuum apparatus of air current hole intercommunication, it is provided with the detachable seal closure to extrude the chamber. This plastic extrusion mould adopts the structure of addding vacuum apparatus, can take out the air from the shaping intracavity in advance to reduce the contact of plastics raw materials and air, thereby reduce the bubble volume in the plastic tubing that obtains, improve the off -the -shelf quality of plastic tubing greatly, compensate prior art's defect.
Description
Technical field
This utility model relates to plastic tube production field, in particular to plastics extrusion die.
Background technology
Plastics extrusion die is the mould for forming plastic pipe, is installed on the outfan of extruding machine, is ingredient important in plastic pipe production line.At present, market has a variety of tube extrusion die, various mono-layer tube, bimetallic tube etc. can be processed and be applied to the tubing of every field.
But, existing plastics extrusion die is when extruded plastic tube, owing to there is substantial amounts of air in mould, there is substantial amounts of bubble, have a strong impact on the quality of plastic tube finished product in the plastic tube therefore produced.
Utility model content
The purpose of this utility model is to provide a kind of plastics extrusion die, to improve the problems referred to above.
This utility model is achieved in that
This plastics extrusion die includes fixing mould and outlet mold, described fixing mould and outlet mold mutually removably connect thus form mould set, it is provided with forming core rod in described mould set, the inwall of the outer wall of described forming core rod and mould set is collectively forming forming cavity, described forming cavity includes that be sequentially communicated clamp-ons chamber, branch chamber and extruding cavity, being provided with the airflow hole connected with forming cavity and the vacuum equipment connected with described airflow hole on described outlet mold, described extruding cavity is provided with dismountable seal closure.
As preferably, it is provided with in described airflow hole for controlling the valve that vacuum equipment connects with forming cavity or disconnects.
The purpose arranging valve is effectively to prevent plastic raw materials from pouring into vacuum equipment, thus ensures the normal work of vacuum equipment.
The purpose arranging valve is that preventing plastic raw materials from passing airflow hole enters vacuum equipment, is effectively ensured the safety of vacuum equipment.
As preferably, described valve is air solenoid valve.
The purpose arranging air solenoid valve is to improve the automaticity of this mould, thus user friendly operation.
As preferably, described seal closure is serum cap, and described serum cap is connected on outlet mold.
The purpose using serum cap is that its lightweight is tough and tensile, with low cost, easy for installation, can effectively seal extruding cavity, in order to the work of vacuum equipment.
As preferably, described vacuum equipment is vacuum pump or air exhauster.
The purpose using vacuum pump or air exhauster is that it is with low cost, and working stability can effectively be implemented as the vacuum state of die cavity.
In the actual design and manufacture process of this plastics extrusion die, described fixing mould and outlet mold can use various structure to connect, if stable connection.As preferably, described fixing mould and outlet mold are bolted.
It is reliable that purpose with bolts is that it has stable connection, installation and removal feature the most very easily.
As preferably, described fixing mould being provided with female thread, described outlet mold is provided with external screw thread, described external screw thread mates with described female thread.
Use threaded purpose to be its simple in construction, be convenient to mount and dismount, can effectively realize being stably connected with of fixing mould and outlet mold.
As preferably, the position that described forming core rod correspondence clamp-ons chamber is cone.
The purpose so arranging forming core rod is to improve the smoothness that the plastic raw materials of molten condition flows in forming cavity, it is ensured that the normal work of this plastics extrusion die.
As preferably, described mould set correspondence is clamp-oned the position in chamber and is provided with heater, and described heater includes the cannelure being arranged on mould set inwall and the heating plate being arranged in cannelure, and described heating plate is connected with outside power supply.
The purpose arranging heater is to ensure fusibility and the mobility of plastic raw materials, thus ensures the normal work of this plastics extrusion die.
As preferably, one end of the corresponding extruding cavity of described mould set connects cooling tube, the inwall of described cooling tube is provided with serpentine pipe, described serpentine pipe is provided with water inlet and outlet, and described water inlet and outlet are positioned at outside cooling tube.
The purpose arranging cooling tube is that the plastic raw materials facilitating molding cools down rapidly, eliminates its internal heat, it is ensured that the stability of structure.
The beneficial effects of the utility model are:
This plastics extrusion die uses the structure setting up vacuum equipment, can detach the air in forming cavity in advance, thus reduce contacting of plastic raw materials and air, thus reduce the bubbles volume in the plastic tube of acquisition, it is greatly improved the quality of plastic tube finished product, makes up the defect of prior art.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, the accompanying drawing used required in embodiment will be briefly described below, it is to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope it is not construed as, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
The structural representation of the plastics extrusion die that Fig. 1 provides for this utility model first embodiment；
The structural representation of the forming core rod that Fig. 2 provides for this utility model first embodiment；
Cooling tube that Fig. 3 provides for this utility model first embodiment and the structural representation of serpentine pipe.
Reference collects:
Fixing mould 100；Outlet mold 200；
Forming core rod 300；Perforation 310；
Vacuum pump 400；Serum cap 500；
Cooling tube 600；Serpentine pipe 700.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of this utility model rather than whole embodiments.Generally can with various different configurations arrange and design with the assembly of this utility model embodiment that illustrate described in accompanying drawing herein.Therefore, the detailed description to the embodiment of the present utility model provided in the accompanying drawings is not intended to limit claimed scope of the present utility model below, but is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
In description of the present utility model, it should be noted that, term " " center ", on " ", D score, " left ", " right ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this utility model product orientation usually put or position relationship when using, it is for only for ease of description this utility model and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Describe additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing, and it is not intended that indicate or hint relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " is arranged ", " installation ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, can also be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood with concrete condition.
First embodiment, with reference to Fig. 1-3, this plastics extrusion die includes fixing mould 100 and outlet mold 200, described fixing mould 100 and outlet mold 200 mutually removably connect thus form mould set, it is provided with forming core rod 300 in described mould set, the inwall of the outer wall of described forming core rod 300 and mould set is collectively forming forming cavity, described forming cavity includes that be sequentially communicated clamp-ons chamber, branch chamber and extruding cavity, the airflow hole connected with forming cavity and the vacuum equipment connected with described airflow hole it is provided with on described outlet mold 200, described extruding cavity is provided with dismountable seal closure.
Wherein, described fixing mould 100 outer wall cylindrically and is provided with cylindrical hole in it, described outlet mold 200 is also in cylindrical and be provided with round platform hole, and the axis of described round platform hole and cylindrical hole overlaps, and described forming core rod 300 be multidiameter and its axis and the dead in line of forming cavity；The middle part of described forming core rod 300 is provided with the prominent mechanism of annular, and above-mentioned prominent structure is provided with multiple perforation 310, and multiple perforation 310 are arranged along the circumferencial direction uniform intervals of described forming core rod 300, in order to melted plastic raw materials through hole.
The operation principle of this plastic extruder and process are such that the plastic raw materials of first molten condition and extrude from extruding machine, enter and clamp-on chamber, and the axis direction that then plastic raw materials overlaps along mould is through branch chamber, finally in extruding cavity molding and be extruded.Before plastic raw materials enters and clamp-ons chamber, first close seal closure, starting vacuum equipment, vacuum equipment starts the air extracting out in forming cavity simultaneously, is in or during close to vacuum state when forming cavity, close vacuum equipment and take off seal closure, now owing to forming cavity is almost without air, therefore plastic raw materials is during entering into molding, almost without inclusion of air, thus obtained plastic tube bubble is little, and quality significantly improves.
The plastic tube that existing plastics extrusion die obtains contains numerous air-bubble mostly, second-rate.For above-mentioned situation, the plastics extrusion die that the technical program provides is additionally arranged vacuum equipment, can before plastic raw materials injects the air in evacuation forming cavity, effectively reduce contacting of plastic raw materials and air, thus reduce the content of plastics inner air tube, improve the quality of plastic tube.
In the present embodiment, it is provided with in described airflow hole for controlling the valve that vacuum equipment connects with forming cavity or disconnects.
The purpose arranging valve is effectively to prevent plastic raw materials from pouring into vacuum equipment, thus ensures the normal work of vacuum equipment.Owing to forming cavity is in vacuum state, therefore its internal pressure is less, in plastic raw materials flow process within it, may rise along airflow hole and enter vacuum equipment, the setting of valve then can effectively solve the problems referred to above, when vacuum equipment quits work, close valve, it is possible to effectively prevent plastic raw materials from passing airflow hole and enter vacuum equipment and damage.
The purpose arranging valve is that preventing plastic raw materials from passing airflow hole enters vacuum equipment, is effectively ensured the safety of vacuum equipment.
In the actual design and manufacture process of this valve, described valve can use various structure, as long as it can realize the circulation of airflow hole and disconnect.In the present embodiment, described valve is air solenoid valve.
Wherein, described air solenoid valve is prior art, and it is applicable to water or liquid as working media, can Automated condtrol or remotely control the break-make of the working media pipelines such as water, oil, air；Described air solenoid valve is electrically connected with controller, and described controller is connected with vacuum equipment, and when described vacuum equipment is opened, described air solenoid valve is in unlatching opening state, and when described vacuum equipment is closed, described air solenoid valve is off.
The purpose arranging air solenoid valve is to improve the automaticity of this mould, thus user friendly operation.
In the present embodiment, described seal closure is serum cap 500, and described serum cap 500 is connected on outlet mold 200.
Wherein, described serum cap 500 is overall in disk form and its side is provided with ring plug, and described ring plug mates with extruding cavity, and such serum cap 500 can easily snap on outlet mold 200；Described ring plug is one-body molded with described serum cap 500, in order to processing.
The purpose using serum cap 500 is that its lightweight is tough and tensile, with low cost, easy for installation, can effectively seal extruding cavity, in order to the work of vacuum equipment.
In the present embodiment, described vacuum equipment is vacuum pump 400.
Wherein, described vacuum pump 400 is prior art, refers to utilize machinery, physics, chemically or physically chemical method to be bled and the device or the equipment that obtain vacuum to taking out container；Described vacuum pump 400 is connected with described airflow hole by trachea.
The purpose using vacuum pump 400 is that it is with low cost, and working stability can effectively be implemented as the vacuum state of die cavity.
In the actual design and manufacture process of this plastics extrusion die, described fixing mould 100 and outlet mold 200 can use various structure to connect, if stable connection.In the present embodiment, described fixing mould 100 and outlet mold 200 are bolted.
Wherein, the side of described fixing mould 100 is provided with the locating slot that the one end with described outlet mold 200 is mated, in order to quick location when both are linked and packed；It is provided with mounting ring on the outer wall of described outlet mold 200, installation through hole it is provided with in described mounting ring, the stud portion of described bolt is through installing through hole and locking in fixing mould 100, and the head of described bolt props up described mounting ring, thus realizes fixing mould 100 and the connection of outlet mold 200.
It is reliable that purpose with bolts is that it has stable connection, installation and removal feature the most very easily.
In the present embodiment, described fixing mould 100 being provided with female thread, described outlet mold 200 is provided with external screw thread, described external screw thread mates with described female thread.
Wherein, the side of described fixing mould 100 is provided with the counter sink of cylinder, and described female thread is arranged on the inwall of counter sink, and described external screw thread is arranged on one end outer wall of the corresponding fixing mould 100 of outlet mold 200.
Use threaded purpose to be its simple in construction, be convenient to mount and dismount, can effectively realize being stably connected with of fixing mould 100 and outlet mold 200.
In the present embodiment, the position that described forming core rod 300 correspondence clamp-ons chamber is cone.
The purpose so arranging forming core rod 300 is to improve the smoothness that the plastic raw materials of molten condition flows in forming cavity, it is ensured that the normal work of this plastics extrusion die.Plastic raw materials enters from extruding machine when clamp-oning chamber, will necessarily clash into the end of forming core rod 300, if now forming core rod 300 corresponding position is flat, then clash into meeting ratio stronger, it is unfavorable for shunting and the flowing of plastic raw materials, the corresponding site of forming core rod 300 is set to cone by the mould that therefore the technical program provides, according to force resolution principle, plastic raw materials and forming core rod 300 easily can continue flow forward along taper seat after clashing into, thus realize shunting, this just can weaken the shock of plastic raw materials significantly, improve the stability of forming core rod 300, promote plastic raw materials flowing in forming cavity, ensure the normal work of this mould.
In the present embodiment, described mould set correspondence is clamp-oned the position in chamber and is provided with heater, and described heater includes the cannelure being arranged on mould set inwall and the heating plate being arranged in cannelure, and described heating plate is connected with outside power supply.
Wherein, the inwall of described fixing mould 100 being provided with multiple annular groove, described heating plate is by multiple, in along the circumferential direction uniform intervals is arranged at annular groove；Described heating plate flushes with the inwall of fixing mould 100, to reduce the resistance to plastic raw materials；Described heating plate connects cable, and described cable through fixing mould 100 and is connected with power supply.
The purpose arranging heater is to ensure fusibility and the mobility of plastic raw materials, thus ensures the normal work of this plastics extrusion die.
In the present embodiment, one end of the corresponding extruding cavity of described mould set connects cooling tube 600, the inwall of described cooling tube is provided with serpentine pipe, described serpentine pipe 700 is provided with water inlet and outlet, and it is outside that described water inlet and outlet are positioned at cooling tube 600.
Wherein, described cooling tube 600 is for pipe and uses adiabator to make, and effectively prevents cold to scatter and disappear；One end of described cooling tube 600 is bolted the one end being installed on outlet mold 200 away from fixing mould 100；On the inwall of the welding of described serpentine pipe 700 and described cooling tube 600, with the stability of guarantee period structure；Described water inlet and outlet are respectively from the two ends of serpentine pipe 700 projection and through stretching out cooling tube 600.
The purpose arranging cooling tube 600 is that the plastic raw materials facilitating molding cools down rapidly, eliminates its internal heat, it is ensured that the stability of structure.
This plastics extrusion die uses the structure setting up vacuum equipment, can detach the air in forming cavity in advance, thus reduce contacting of plastic raw materials and air, thus reduce the bubbles volume in the plastic tube of acquisition, it is greatly improved the quality of plastic tube finished product, makes up the defect of prior art.
Second embodiment, the device that this utility model embodiment is provided, its technique effect realizing principle and generation is identical with previous embodiment, for briefly describing, the not mentioned part of device embodiment part, refer to corresponding contents in previous embodiment.
In the present embodiment, described vacuum equipment is air exhauster.
Wherein, described air exhauster is also prior art, is used to extract out the machine of gas in closed vessel；Described air exhauster is connected with described airflow hole by trachea.
The purpose using air exhauster is that it is with low cost, and working stability can effectively be implemented as the vacuum state of die cavity.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (10)
1. a plastics extrusion die, it is characterized in that, including fixing mould and outlet mold, described fixing mould and outlet mold mutually removably connect thus form mould set, it is provided with forming core rod in described mould set, the inwall of the outer wall of described forming core rod and mould set is collectively forming forming cavity, described forming cavity includes that be sequentially communicated clamp-ons chamber, branch chamber and extruding cavity, being provided with the airflow hole connected with forming cavity and the vacuum equipment connected with described airflow hole on described outlet mold, described extruding cavity is provided with dismountable seal closure.
Plastics extrusion die the most according to claim 1, it is characterised in that be provided with in described airflow hole for controlling the valve that vacuum equipment connects with forming cavity or disconnects.
Plastics extrusion die the most according to claim 2, it is characterised in that described valve is air solenoid valve.
Plastics extrusion die the most according to claim 1, it is characterised in that described seal closure is serum cap, described serum cap is connected on outlet mold.
Plastics extrusion die the most according to claim 1, it is characterised in that described vacuum equipment is vacuum pump or air exhauster.
Plastics extrusion die the most according to claim 1, it is characterised in that described fixing mould and outlet mold are bolted.
Plastics extrusion die the most according to claim 1, it is characterised in that be provided with female thread on described fixing mould, described outlet mold is provided with external screw thread, and described external screw thread mates with described female thread.
Plastics extrusion die the most according to claim 1, it is characterised in that the position that described forming core rod correspondence clamp-ons chamber is cone.
Plastics extrusion die the most according to claim 1, it is characterized in that, described mould set correspondence is clamp-oned the position in chamber and is provided with heater, and described heater includes the cannelure being arranged on mould set inwall and the heating plate being arranged in cannelure, and described heating plate is connected with outside power supply.
Plastics extrusion die the most according to claim 1, it is characterized in that, one end of the corresponding extruding cavity of described mould set connects cooling tube, it is provided with serpentine pipe on the inwall of described cooling tube, being provided with water inlet and outlet on described serpentine pipe, described water inlet and outlet are positioned at outside cooling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521046846.5U CN205416291U (en) | 2015-12-15 | 2015-12-15 | Plastic extrusion mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521046846.5U CN205416291U (en) | 2015-12-15 | 2015-12-15 | Plastic extrusion mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205416291U true CN205416291U (en) | 2016-08-03 |
Family
ID=56536901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521046846.5U Expired - Fee Related CN205416291U (en) | 2015-12-15 | 2015-12-15 | Plastic extrusion mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205416291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964291A (en) * | 2019-12-30 | 2020-04-07 | 福建大耳朵图图实业有限公司 | Box shell plate and preparation equipment thereof |
-
2015
- 2015-12-15 CN CN201521046846.5U patent/CN205416291U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964291A (en) * | 2019-12-30 | 2020-04-07 | 福建大耳朵图图实业有限公司 | Box shell plate and preparation equipment thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20211215 |