CN202911111U - Belt type automatic net change device - Google Patents
Belt type automatic net change device Download PDFInfo
- Publication number
- CN202911111U CN202911111U CN 201220316580 CN201220316580U CN202911111U CN 202911111 U CN202911111 U CN 202911111U CN 201220316580 CN201220316580 CN 201220316580 CN 201220316580 U CN201220316580 U CN 201220316580U CN 202911111 U CN202911111 U CN 202911111U
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Abstract
The utility model discloses a net belt type automatic net change device and a method for producing a drip irrigation tape by utilizing the same. The automatic net change device comprises a net change plate and a fixing plate which are movably connected, wherein a sealing channel for a net belt to pass through is formed in the joint of the net change plate and the fixing plate; heating devices and cooling devices are arranged on the net change plate and the fixing plate; pressure sensors are also arranged on the net change plate; a discharging channel communicated with the sealing channel is formed in the fixing plate; a porous plate is arranged at an outlet of the discharging channel; the fixing plate is connected with a hole die; a feeding channel which is communicated with the sealing channel and generates a lateral force in the direction of the sealing channel is formed in the net change plate; and the sealing channel is a wedge-shaped cavity body changing outwards from shallow to deep along a central line of the feeding channel. When a molten material enters into the feeding channel of the net change plate from an extruder, the melt is blocked from being diffused by the side wall of the feeding channel with a generatrix vertical to a circular plane, and one part of the molten material is forced to quickly move into the sealing channel along an extended flow channel; when few impurities are in the sealing channel and the melt pressure is low, the cooling device is started to reduce the temperature at the front end of the molten material so as to solidify the molten material at the front end; the molten material enters into the discharging channel communicated with the hole die through the net belt and the porous plate; and the material is fed into the hole die for formation.
Description
Technical field
The utility model relates to a kind of net exchanging device, especially a kind of belt automatic screen changer.
Background technology
In order to guarantee the normal operation of extruder, extruding net exchanging device is one of critical component wherein, its effect is the melt that extruder is extruded, water conservancy diversion by filtration and porous plate, rotation motion is in line moves and flow out, the assurance melt can be stablized, flow into equably extruding dies, thereby has guaranteed the quality of product.In addition, the resin that extruder is used in production, transportation, storage, production process, can produce some impurity inevitably, and these impurity do not allow to enter into product and go, and therefore, screen pack has just played the effect of elimination impurity.Chinese patent has been announced CN 2652644Y net changing device for plastic molten solution filter and Chinese patent have been announced CN 201712164 U inflation film manufacturing machines on January 19th, 2011 electric belt transport type filter on November 3rd, 2004, both by the effect of external force screen pack is pulled out between two templates by force, because it is larger that the material that screen pack itself bears is pressed, and easily screen pack broken; Chinese patent has been announced CN 201816212 U automatic machine head screen replacing devices on May 4th, 2011, a kind of automatic machine head screen replacing device, foretell intrinsic net-changing device (2) at support (1), the net-changing device left side is provided with guipure case (3), pass the groove in the middle of net-changing device of the guipure (4) on the guipure case (3), the groove both sides on net-changing device right side are provided with water cooling coil pipe (5), heating rod (6) and thermocouple (7) are established in the inboard, water cooling coil pipe (5) is established in the cavity both sides of groove opposite side, heating rod (8) and thermocouple (9) are established in the inboard, heating rod and thermocouple are electrically connected with electrical control cubicles by wire, because it is the pressure that utilizes twin-screw extrusion head extrusion plastic to be, drive guipure and walk net, but extruder head is vertical setting with guipure, itself is without producing the lateral thrust structure, from the pressure of head all the time perpendicular to guipure, be not easy to produce cross component force, therefore draping is difficulty, draping efficient is lower, and easily guipure is broken, produce fault; Announced the extruder automatic belt type net exchanging device of CN 2703636Y on June 8th, 2005, a kind of extruder automatic belt type net exchanging device, be installed between extruder barrel and the die head, comprise filling barrel (1), heating collar (2), Inlet and outlet water device (3), screen replacing device (4), sieve plate (5), screen tube (11), filter screen (12), stainless steel heating tube (13), heating collar (2) is installed on the filling barrel (1), one end of filling barrel (1) links to each other with die head, the other end communicates with the port of export of screen replacing device (4), the entrance point of screen replacing device (4) communicates with screw cylinder (9), sieve plate (5) is installed in the screen replacing device (4), one end of filter screen (12) links to each other with screen tube (11), the other end after filtration web plate (5) with respect to the surface of the entrance point of screen replacing device (4) and be positioned in the filter screen passage (14) of screen replacing device (4), stainless steel heating tube (13) is installed in corresponding the heating in the position in the screen replacing device (4), Inlet and outlet water device (3) needs the position of cooling to link to each other by water pipe and screen replacing device (4) accordingly, screen replacing device (4) is by inducer (15), active section (16), seal section (17) and outlet section (18) form, between inducer (15) and the active section (16), between active section (16) and the seal section (17), be respectively equipped with heat insulation groove (19) between seal section (17) and the outlet section (18), (20), (21), inducer (15), in active section (16) and the outlet section (18) stainless steel heating tube (13) is installed all, inducer (15), be equipped with the cooling water manhole appendix (22) that links to each other with Inlet and outlet water device (3) on the seal section (17), it adopts symmetrical circular charging tapping channel structure, the charging of this structure is larger to the impact of filter screen, the pressure that filter screen affords is large, resistance is large, required power consumption also will increase, the majority that the sealing passage adopts adopts parallel construction, and is larger for the flow resistance of raw material.
Summary of the invention
It is a kind of little to the filter screen impact that the purpose of this utility model is to provide, and pressure is little, resistance is little, and draping is easy, a kind of belt automatic screen changer of saving power.
The technical scheme that the utility model technical solution problem is taked is:
A kind of belt automatic screen changer, comprise that draping plate and fixed head and the two are for being flexibly connected and forming in the junction sealing passage that passes through for guipure, draping plate and fixed head are provided with heater and cooling device, also be provided with pressure sensor on the draping plate, fixed head is provided with and the tapping channel that seals passage and communicate, the exit of tapping channel is provided with porous plate, fixed head connector mould, its draping plate are provided with and seal that passage communicates and produce the feeding-passage of cross component force along the sealing channel direction.
Described a kind of belt automatic screen changer, its feeding-passage are special-shaped hemispherical dome structure, and the side that feeding-passage links to each other with extruder is circular port, and opposite side is square orifice, and a bus that intersects with the sealing passage on the feeding-passage becomes the obtuse angle with the sealing passage.
Described a kind of belt automatic screen changer, its feeding-passage is the decentraction frustum cone structure, and the diameter of the circular port of the side that feeding-passage links to each other with extruder is less than the diameter of another time circular port, and two circular ports are simultaneously perpendicular to both bus.
Described a kind of belt automatic screen changer, its feeding-passage is concentric frustum cone structure.
Described a kind of belt automatic screen changer, its sealing passage is rectangular cavities.
Described a kind of belt automatic screen changer, its sealing passage are that the wedge cavities body structure more is conducive to flowing of raw material, helps to carry out automatic draping along the outside wedge shape cavity from light to dark of the center line of feed channel.
A kind of belt automatic screen changer, comprise draping plate and fixed head, draping plate and fixed head are provided with heater and cooling device, also be provided with feeding-passage and pressure sensor on the draping plate, fixed head is provided with tapping channel, the exit of tapping channel is provided with porous plate, and the draping plate also is provided with along the outside wedge shape sealing passage from light to dark of the center line of feeding-passage, and the sealing passage communicates with feeding-passage.
Described a kind of belt automatic screen changer, its feeding-passage is concentric frustum cone structure, the diameter of the circular port of a side that links to each other with extruder is less than the diameter of opposite side circular port.
Described a kind of belt automatic screen changer, its feeding-passage is the decentraction frustum cone structure, and the diameter of the circular port of the side that feeding-passage links to each other with extruder is less than the diameter of another time circular port, and two circular ports are simultaneously perpendicular to both bus.
Described a kind of belt automatic screen changer, its feeding-passage are special-shaped hemispherical dome structure, and the side that feeding-passage links to each other with extruder is circular port, and opposite side is square orifice, and a bus that intersects with the sealing passage on the feeding-passage becomes the obtuse angle with the sealing passage.
Described a kind of belt automatic screen changer is provided with dismountable porous slide block between its draping plate and the fixed head, the material that utilizes dismountable slide block can reduce porous plate is pressed, thereby has protected porous plate, and slide block is easily changed.
Described a kind of belt automatic screen changer, its porous slide block is at least two, and each slide block one end is provided with the connection boss, and the other end is provided with connecting groove.
Beneficial effect: feeding-passage adopts concentric round platform, decentraction round platform or special-shaped hemispherical dome structure; to reduce the normal pressure of guipure; produced larger cross component force; increase the direction component that guipure moves; perhaps; the sealing compound road of wedge shape is compared with the sealing compound road of rectangle; melt in the material road also will produce the component of a side direction; be conducive to reduce resistance, reduce the impact that guipure moves, reduce power demand; save power; make draping easier, use dismountable slide block can protect porous plate, thereby protected whole net exchanging device.
Description of drawings
Fig. 1 is the structure chart of embodiment 1.
Fig. 2 is the structure chart of embodiment 1 draping plate.
Fig. 3 is the structure chart of embodiment 2.
Fig. 4 is the structure chart of embodiment 2 draping plates.
Fig. 5 is the structure chart of embodiment 3.
Fig. 6 is the structure chart of embodiment 3 draping plates.
Fig. 7 is the structure chart of embodiment 4.
Fig. 8 is the structure chart of embodiment 5.
Fig. 9 is the structure chart of embodiment 6.
Among Fig. 1-9,1 is guipure, and 2 are the draping plate, and 3 is feeding-passage, and 4 are the sealing passage, and 5 is cooling device, and 6 is heater, and 7 is tapping channel, and 8 is porous plate, and 9 is fixed head, and 10 is detachable slide block.
The specific embodiment
With reference to accompanying drawing 1, embodiment 1: a kind of net belt type automatic screen changer, comprise that draping plate 2 and fixed head 9 and the two are for being flexibly connected and forming in the junction sealing passage that passes through for guipure, draping plate and fixed head are provided with heater 6 and cooling device 5, also be provided with pressure sensor on the draping plate, fixed head is provided with and the tapping channel 7 that seals passage 4 and communicate, the exit of tapping channel is provided with porous plate 8, fixed head connector mould, the draping plate is provided with and seals that passage communicates and produce the feeding-passage of cross component force along the sealing channel direction, feeding-passage is special-shaped hemispherical dome structure, the side that feeding-passage links to each other with extruder is circular port, opposite side is square orifice, a bus that intersects with the sealing passage on the feeding-passage becomes the obtuse angle with the sealing passage, and the sealing passage is along the outside wedge shape cavity from light to dark of the center line of feed channel.When fused materials enters the feed channel of draping plate by extruder, the material road sidewall that bus is vertical with circular flat has stopped the diffusion of melt, force the part of fused materials to be moved into the sealing passage along the runner that enlarges rapidly, when the sealing passage impurity few, melt pressure hour, cooling device is opened, reduce fused materials front end temperature, the front end fused materials is solidified, fused materials enters tapping channel by guipure and porous plate, tapping channel communicates with a mouthful mould, and material is admitted to a mouthful mold forming.When tapping channel with guipure that porous plate contacts on impurity more, when pressure is larger, start heater by pressure sensor, add the material of hot-seal passage, the again melting of material that front end is solidified, and the drive guipure moves, make the more guipure of impurity leave position corresponding to porous plate, clean guipure moves on the porous plate simultaneously, and the material of melting passes through porous plate smoothly, the pressure decreased of sealing passage, pressure sensor induction stopped heating.So again and again operation, both can guarantee to produce continuously, stable operation, guaranteed again product quality.
With reference to accompanying drawing 3, embodiment 2 as different from Example 1: the sealing passage be the rectangular cavities structure.
With reference to accompanying drawing 5, embodiment 3 as different from Example 2: feeding-passage is decentraction frustum cone structure structure.
With reference to accompanying drawing 7, embodiment 4 as different from Example 3: feeding-passage is concentric frustum cone structure structure, the sealing passage be the wedge cavities body structure.
With reference to accompanying drawing 8, embodiment 5 as different from Example 4: the sealing passage be the rectangular cavities structure.
With reference to accompanying drawing 9, embodiment 6 as different from Example 5: be provided with dismountable porous slide block between draping plate and the fixed head.
Claims (11)
1. belt automatic screen changer, comprise that draping plate and fixed head and the two are for being flexibly connected and forming in the junction sealing passage that passes through for guipure, draping plate and fixed head are provided with heater and cooling device, also be provided with pressure sensor on the draping plate, fixed head is provided with and the tapping channel that seals passage and communicate, the exit of tapping channel is provided with porous plate, fixed head connector mould is characterized in that the draping plate is provided with and seals that passage communicates and produce the feeding-passage of cross component force along the sealing channel direction.
2. a kind of belt automatic screen changer as claimed in claim 1, it is characterized in that feeding-passage is that circle is transitioned into square structure, the side that feeding-passage links to each other with extruder is circular port, opposite side is square orifice, and a bus that intersects with the sealing passage on the feeding-passage becomes the obtuse angle with the sealing passage.
3. a kind of belt automatic screen changer as claimed in claim 1, it is characterized in that feeding-passage is the decentraction frustum cone structure, the diameter of the circular port of the side that feeding-passage links to each other with extruder is less than the diameter of opposite side circular port, a bus that intersects with the sealing passage on the feeding-passage becomes the obtuse angle with the sealing passage, and the bus that opposite side is relative and two circular ports are perpendicular.
4. a kind of belt automatic screen changer as claimed in claim 1 is characterized in that feeding-passage is concentric frustum cone structure.
5. such as the described any belt automatic screen changer of claim 1-4, it is characterized in that sealing passage is rectangular cavities.
6. such as the described any belt automatic screen changer of claim 1-4, it is characterized in that sealing passage is along the outside wedge shape cavity from light to dark of the center line of feed channel.
7. belt automatic screen changer, comprise draping plate and fixed head, draping plate and fixed head are provided with heater and cooling device, also be provided with feeding-passage and pressure sensor on the draping plate, fixed head is provided with tapping channel, the exit of tapping channel is provided with porous plate, it is characterized in that the draping plate also is provided with along the outside wedge shape sealing passage from light to dark of the center line of feeding-passage, and the sealing passage communicates with feeding-passage.
8. a kind of belt automatic screen changer as claimed in claim 7 is characterized in that feeding-passage is concentric frustum cone structure, and the diameter of the circular port of a side that links to each other with extruder is less than the diameter of opposite side circular port.
9. a kind of belt automatic screen changer as claimed in claim 7, it is characterized in that feeding-passage is the decentraction frustum cone structure, the diameter of the circular port of the side that feeding-passage links to each other with extruder is less than the diameter of opposite side circular port, and two circular ports are simultaneously perpendicular to both bus.
10. a kind of belt automatic screen changer as claimed in claim 7, it is characterized in that feeding-passage is that circle is transitioned into structures square and both decentraction, the side that feeding-passage links to each other with extruder is circular port, opposite side is square orifice, and a bus that intersects with the sealing passage on the feeding-passage becomes the obtuse angle with the sealing passage.
11. any belt automatic screen changer as claimed in claim 10 is characterized in that being provided with between draping plate and the fixed head dismountable porous slide block.
12. a kind of belt automatic screen changer as claimed in claim 11 is characterized in that the porous slide block is at least two, each slide block one end is provided with the connection boss, and the other end is provided with connecting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220316580 CN202911111U (en) | 2011-12-15 | 2012-07-02 | Belt type automatic net change device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120545479 | 2011-12-15 | ||
| CN201120545479.9 | 2011-12-15 | ||
| CN 201220316580 CN202911111U (en) | 2011-12-15 | 2012-07-02 | Belt type automatic net change device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202911111U true CN202911111U (en) | 2013-05-01 |
Family
ID=48159452
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220316580 Expired - Fee Related CN202911111U (en) | 2011-12-15 | 2012-07-02 | Belt type automatic net change device |
| CN2012102258273A Pending CN103158240A (en) | 2011-12-15 | 2012-07-02 | Band-type automatic net-changing device and drip irrigation zone producing method using band-type automatic net-changing device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102258273A Pending CN103158240A (en) | 2011-12-15 | 2012-07-02 | Band-type automatic net-changing device and drip irrigation zone producing method using band-type automatic net-changing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN202911111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158240A (en) * | 2011-12-15 | 2013-06-19 | 新疆天业（集团）有限公司 | Band-type automatic net-changing device and drip irrigation zone producing method using band-type automatic net-changing device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107891592A (en) * | 2017-12-05 | 2018-04-10 | 南京科森挤出装备有限公司 | The board-like high pressure net-changing device of automatic deviation correction levelling |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830067A (en) * | 2010-05-18 | 2010-09-15 | 昆山科信橡塑机械有限公司 | Quick-open type screen change structure with heater |
| CN202911111U (en) * | 2011-12-15 | 2013-05-01 | 新疆天业（集团）有限公司 | Belt type automatic net change device |
-
2012
- 2012-07-02 CN CN 201220316580 patent/CN202911111U/en not_active Expired - Fee Related
- 2012-07-02 CN CN2012102258273A patent/CN103158240A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158240A (en) * | 2011-12-15 | 2013-06-19 | 新疆天业（集团）有限公司 | Band-type automatic net-changing device and drip irrigation zone producing method using band-type automatic net-changing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103158240A (en) | 2013-06-19 |
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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: 20130501 Termination date: 20190702 |