CN202986058U - Halt-free net-replacing device of extruding machine - Google Patents
Halt-free net-replacing device of extruding machine Download PDFInfo
- Publication number
- CN202986058U CN202986058U CN2013200194474U CN201320019447U CN202986058U CN 202986058 U CN202986058 U CN 202986058U CN 2013200194474 U CN2013200194474 U CN 2013200194474U CN 201320019447 U CN201320019447 U CN 201320019447U CN 202986058 U CN202986058 U CN 202986058U
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- screen pack
- control valve
- flow channel
- intermediate flow
- shut down
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- B29C47/92—
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a halt-free net-replacing device of an extruding machine. The halt-free net-replacing device of the extruding machine is an auxiliary device of the extruding machine, and is capable of replacing a blocked filtering net without the need of halting the extruding machine. The halt-free net-replacing device of the extruding machine comprises a screw rod material barrel and a filtering device, wherein the filtering device comprises a material inlet pipe communicated with the screw rod material barrel, a material outlet pipe communicated with a forming mould, and middle flowing passageways communicated with the material inlet pipe and the material outlet pipe, the number of the middle flowing passageways in the filtering device is at least two, at least one replaceable filtering net is arranged in each middle flowing passageway, the number of the filtering nets in each middle flowing passageway is the same, the end, connected with the material inlet pipe, of each middle flowing passageway is provided with a first control valve, the end, connected with the material outlet pipe, of each middle flowing passageway is provided with a second control valve, and the first valve and the second valve are opened or closed simultaneously. The halt-free net-replacing device of the extruding machine is mainly applied to machining machinery such as an extruding machine and a drawing machine for adhesive materials like plastics, rubber or wood plastics.
Description
Technical field
The utility model relates to extruder, and particularly a kind of extruder is not shut down net exchanging device.
Background technology
The waste material that the extruder utilization is reclaimed is produced again, in the waste material that reclaims, many impurity is arranged, enter under the mutual shearing of extruder by external heat and screw rod and machine barrel at raw material, material is extruded through mould molding by quantitative, level pressure in almost completely plasticizing situation.In order to prevent that the impurity particle etc. in raw material from entering mould, screen pack is housed enter mould after raw material is plastified fully before.But, screen pack is designed to fixed structure usually in some equipment, when being stopped up the charging machinery that must stop in out of use situation fully, screen pack carries out again the replacing of screen pack, therefore affected normal production, plenty of time and raw material have been wasted, increase the labour and drop into, reduced production efficiency.
Summary of the invention
The purpose that the utility model will reach just is to provide a kind of extruder and does not shut down net exchanging device, reduces labour's input, and the waste of minimizing time and raw material is enhanced productivity.
in order to achieve the above object, the utility model adopts following technical scheme: extruder is not shut down net exchanging device, comprise screw cylinder and filter, described filter comprises the feeding pipe that is communicated with screw cylinder, the intermediate flow channel of the discharge nozzle that is communicated with mould and connection feeding pipe and discharge nozzle, described filter comprises at least two intermediate flow channel, be provided with removable screen pack in each intermediate flow channel, screen pack in all intermediate flow channel is equipped with at least one and quantity is identical, the end that described intermediate flow channel is connected with feeding pipe is provided with the first control valve, an end that is connected with discharge nozzle is provided with the second control valve, described the first control valve and the second control valve are opened simultaneously or close.
Further, described screen pack is provided with at least two and be followed successively by the first screen pack, the second screen pack along the Flow of Goods and Materials direction, the like.
Further, the structure of all intermediate flow channel is identical, and the setting position of all the first screen packs in each intermediate flow channel is identical, and the setting position of all the second screen packs in each intermediate flow channel is identical, the like.
Further, the order number of described the first screen pack is less than the order number of the second screen pack, and the order number of the second screen pack is less than the order number of the 3rd screen pack, the like.
Further, also comprise controller, be provided with pressure sensor in described intermediate flow channel, described pressure sensor is connected with controller by holding wire, and described the first control valve is to control open/close shutoff valve by controller according to pressure signal.
Further, described the second control valve is to control open/close shutoff valve by controller according to pressure signal.
Further, described the second control valve is to make material flow to the retaining valve of discharge nozzle from middle flow passage one-way.
Further, described the second control valve is for controlling open/close shutoff valve by controller according to pressure signal or for to make material flow to the retaining valve of discharge nozzle from middle flow passage one-way, in all second control valves, shutoff valve and retaining valve all are provided with one at least.
Further, be provided with the discharging screen pack in described discharge nozzle.Further strengthen filter effect.
After adopting technique scheme; the utlity model has following advantage: simple in structure, convenient the screen pack that stops up is changed, realize that extruder is not shut down to change the screen pack that stops up; reduce the waste of material and personnel's input cost, improve production efficiency and yield.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of the utility model the first embodiment;
Fig. 2 is the structural representation of the utility model the second embodiment.
The specific embodiment
Embodiment one:
be illustrated in figure 1 as the utility model the first embodiment, extruder is not shut down net exchanging device, comprise screw cylinder 1 and filter 2, described filter comprises the feeding pipe 21 that is communicated with screw cylinder, the intermediate flow channel 23 of the discharge nozzle 22 that is communicated with mould 3 and connection feeding pipe and discharge nozzle, described filter comprises at least two intermediate flow channel, be provided with removable screen pack 24 in each intermediate flow channel, screen pack in all intermediate flow channel is equipped with at least one and quantity is identical, the end that described intermediate flow channel is connected with feeding pipe is provided with the first control valve 25, an end that is connected with discharge nozzle is provided with the second control valve 26, described the first control valve and the second control valve are opened simultaneously or close.In the present embodiment, describe as an example of two intermediate flow channel example.
In order to strengthen filter effect, reduce impurity, described screen pack is provided with at least two and be followed successively by the first screen pack, the second screen pack along the Flow of Goods and Materials direction, the like.Also just say the 3rd screen pack, the 4th screen pack can also be set ... in the present embodiment, be provided with altogether three screen packs in an intermediate flow channel.
As preferred structure, the structure of all intermediate flow channel is identical, and the setting position of all the first screen packs in each intermediate flow channel is identical, and the setting position of all the second screen packs in each intermediate flow channel is identical, the like.Pressure when material flows in each intermediate flow channel like this can be close to each other.In order to improve filter effect, the order number of described the first screen pack is less than the order number of the second screen pack, and the order number of the second screen pack is less than the order number of the 3rd screen pack, the like.That is to say and first filter oarse-grained impurity, then filter gradually the impurity of medium grain, filter at last short grained impurity, make the screen pack of diverse location in an intermediate flow channel be divided the work, improve filter effect and the service life of screen pack.
In addition, the first control valve and the second control valve can adopt manual control, but for the convenient mobility status of in time controlling material when center-aisle stops up is changed the screen pack that stops up, therefore increased controller 4, and be provided with pressure sensor 27 in described intermediate flow channel, described pressure sensor is connected with controller by holding wire, and described the first control valve is to control open/close shutoff valve by controller according to pressure signal.In the present embodiment, described the second control valve is to control open/close shutoff valve by controller according to pressure signal.Described the first control valve and the second control valve can adopt magnetic valve, so also can reduce the waste of material and personnel's input.
As the intensive filtration effect, be provided with discharging screen pack 28 in described discharge nozzle during in the end discharging.
Embodiment two:
Be illustrated in figure 2 as the utility model the second embodiment, the present embodiment and embodiment one are similar, distinguish just to be, described the second control valve is to make material flow to the retaining valve of discharge nozzle from middle flow passage one-way.The retaining valve need not be controlled by controller.Also can a shutoff valve and a retaining valve will be selected in certain two the second control valves.The quantity of the second control valve increases, and in all second control valves, shutoff valve and retaining valve all are provided with one at least, and principle is identical, repeats no more.
Operation principle of the present utility model is described as follows as an example of one or two intermediate flow channel of embodiment example:
during the extruder start, all first control valves and the second control valve are all opened, after the normal discharging of discharge nozzle, the first control valve in an optional center-aisle and the second control valve are closed or are semi-closed, so-called semi-closed refer to control flow be reduced to normal discharge half or half below, such as selecting the right center-aisle in Fig. 1 is closed or semi-closed, material in the center-aisle of the left side normally circulates, after the screen pack in the center-aisle of the left side stops up, pressure sensor monitoring in the center-aisle on the left side increases over setting value to pressure, and with pressure signal transmission in controller, the first control valve and the second control valve that controller is just controlled in the center-aisle of the left side are closed, open simultaneously the first control valve and the second control valve in the center-aisle of the right, make material be circulated to discharge nozzle from the center-aisle of the right, owing to saying before, the first control valve in the center-aisle of the right and the second control valve are closed or semi-closed before had material to flow therein, therefore can continue to flow after the first control valve and the second control valve are opened, and meanwhile, the workman just can go the filter screen replacement that stops up in the center-aisle of the left side is fallen.When the screen pack in the center-aisle of the right stops up; pressure sensor in the center-aisle of the right can monitor pressure rise and pressure signal transmission is arrived controller; controller cuts out the first control valve in the center-aisle of the right and the second control valve; open simultaneously the first control valve and the second control valve in the center-aisle of the left side; the workman falls the filter screen replacement that stops up in the center-aisle of the right, and so circulation just can realize not shutting down draping.And on this basis, three center-aisles or four center-aisles or more center-aisle are set, just can realize not shutting down draping as long as there is the screen pack of an intermediate flow channel not stop up.
The utility model is simple in structure; convenient the screen pack that stops up is changed, realized that extruder is not shut down to change the screen pack that stops up, reduce the waste of material and personnel's input cost; enhance productivity, compare existing extruder and can improve 40%～50% output.
The utility model is useful in the plastic processing machineries such as plastic extruder, wire drawing machine, comminutor, injection machine, blow moulding machine, also is useful on other viscous materials such as the processing equipments such as rubber, Wood-plastic material.Except above preferred embodiment, the utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (9)
1. extruder is not shut down net exchanging device, comprise screw cylinder (1) and filter (2), it is characterized in that: described filter comprises the feeding pipe (21) that is communicated with screw cylinder, the intermediate flow channel (23) of the discharge nozzle (22) that is communicated with mould (3) and connection feeding pipe and discharge nozzle, described filter comprises at least two intermediate flow channel, be provided with removable screen pack (24) in each intermediate flow channel, screen pack in all intermediate flow channel is equipped with at least one and quantity is identical, the end that described intermediate flow channel is connected with feeding pipe is provided with the first control valve (25), an end that is connected with discharge nozzle is provided with the second control valve (26), described the first control valve and the second control valve are opened simultaneously or close.
2. extruder according to claim 1 is not shut down net exchanging device, it is characterized in that: described screen pack is provided with at least two and be followed successively by the first screen pack, the second screen pack along the Flow of Goods and Materials direction, the like.
3. extruder according to claim 2 is not shut down net exchanging device; it is characterized in that: the structure of all intermediate flow channel is identical; the setting position of all the first screen packs in each intermediate flow channel is identical, and the setting position of all the second screen packs in each intermediate flow channel is identical, the like.
4. according to claim 2 or 3 described extruders are not shut down net exchanging device, it is characterized in that: the order number of described the first screen pack is less than the order number of the second screen pack, and the order number of the second screen pack is less than the order number of the 3rd screen pack, the like.
5. according to claim 1 and 2 or 3 described extruders are not shut down net exchanging device; it is characterized in that: also comprise controller (4); be provided with pressure sensor (27) in described intermediate flow channel; described pressure sensor is connected with controller by holding wire, and described the first control valve is to control open/close shutoff valve by controller according to pressure signal.
6. extruder according to claim 5 is not shut down net exchanging device, it is characterized in that: described the second control valve is for controlling open/close shutoff valve by controller according to pressure signal.
7. extruder according to claim 5 is not shut down net exchanging device, it is characterized in that: described the second control valve is to make material flow to the retaining valve of discharge nozzle from middle flow passage one-way.
8. extruder according to claim 5 is not shut down net exchanging device; it is characterized in that: described the second control valve is for controlling open/close shutoff valve by controller according to pressure signal or for to make material flow to the retaining valve of discharge nozzle from middle flow passage one-way, shutoff valve and retaining valve all are provided with one at least.
9. extruder according to claim 1 and 2 is not shut down net exchanging device, it is characterized in that: be provided with discharging screen pack (28) in described discharge nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200194474U CN202986058U (en) | 2013-01-14 | 2013-01-14 | Halt-free net-replacing device of extruding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200194474U CN202986058U (en) | 2013-01-14 | 2013-01-14 | Halt-free net-replacing device of extruding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202986058U true CN202986058U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200194474U Expired - Fee Related CN202986058U (en) | 2013-01-14 | 2013-01-14 | Halt-free net-replacing device of extruding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202986058U (en) |
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2013
- 2013-01-14 CN CN2013200194474U patent/CN202986058U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20130612 Termination date: 20150114 |
|
| EXPY | Termination of patent right or utility model |