CN217648901U - PVB film production facility - Google Patents
PVB film production facility Download PDFInfo
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- CN217648901U CN217648901U CN202221345043.XU CN202221345043U CN217648901U CN 217648901 U CN217648901 U CN 217648901U CN 202221345043 U CN202221345043 U CN 202221345043U CN 217648901 U CN217648901 U CN 217648901U
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Abstract
The application relates to PVB film production facility technical field provides a PVB film production facility, includes: the extruding mechanism comprises a first extruder, a second extruder and a third extruder, the first extruder and the third extruder are used for extruding colored materials, and the second extruder is used for extruding white materials; the distribution mechanism comprises a main body, and a first flow channel, a second flow channel, a third flow channel and an outflow flow channel which are arranged on the main body, wherein a first extruder, a second extruder and a third extruder are respectively and correspondingly connected with an inlet of the first flow channel, an inlet of the second flow channel and an inlet of the third flow channel, an outlet of the first flow channel, an outlet of the second flow channel and an outlet of the third flow channel are respectively communicated with an inlet of the outflow flow channel, and the outlet of the first flow channel and the outlet of the third flow channel are respectively positioned on two opposite sides of the outlet of the second flow channel; and the inlet of the die head is connected with the outlet of the outflow runner. The three-color PVB film can be extruded by the PVB film production equipment.
Description
Technical Field
The utility model relates to a PVB film production technical field especially relates to a PVB film production facility.
Background
The PVB (polyvinyl butyral) film is a high polymer material formed by plasticizing and extruding polyvinyl butyral resin by a plasticizer, has excellent flexibility and certain roughness, has good cohesive force on inorganic glass, can be widely applied to building laminated glass, automobile laminated glass, solar photovoltaic glass, bulletproof glass, sound insulation glass and the like, and ensures that the glass has the special performances of penetration resistance, sound insulation, heat insulation, ultraviolet isolation, high and low temperature weather resistance, excellent safety performance and the like.
The existing traditional PVB film production line can only produce color strips or color strips at the edges, namely, only a single color strip film can be produced, the PVB film with wide specification and color variation required by a customer can not be prepared, the production line is limited and cannot be produced in time, the production yield is low, and the like.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a PVB film production facility to solve the single technical problem of colored ribbon on the PVB film that current PVB film production line produced.
The embodiment of this application provides a PVB film production facility, PVB film production facility includes:
the extruding mechanism comprises a first extruder, a second extruder and a third extruder, wherein the first extruder and the third extruder are used for extruding colored materials, and the second extruder is used for extruding white materials;
the distribution mechanism comprises a main body, and a first flow channel, a second flow channel, a third flow channel and an outflow flow channel which are arranged on the main body, wherein the first extruder, the second extruder and the third extruder are correspondingly connected with an inlet of the first flow channel, an inlet of the second flow channel and an inlet of the third flow channel respectively, an outlet of the first flow channel, an outlet of the second flow channel and an outlet of the third flow channel are communicated with an inlet of the outflow flow channel, and the outlet of the first flow channel and the outlet of the third flow channel are respectively positioned at two opposite sides of the outlet of the second flow channel;
and the inlet of the die head is connected with the outlet of the outflow runner, and the die head is used for extruding the PVB film with the preset thickness.
In an embodiment, the inlet of the second flow channel is disposed at one side of the main body, the second flow channel extends along a first direction, the outflow flow channel is disposed at another side of the main body and is disposed corresponding to the second flow channel, and the inlet of the first flow channel and the inlet of the third flow channel are disposed at two opposite sides of the second flow channel, respectively.
In an embodiment, the third flow channel and the first flow channel are symmetrically arranged on two sides of the second flow channel.
In an embodiment, the first flow passage includes an inlet section, a middle section and an outlet section, which are sequentially connected in a bending manner, the inlet section extends along a second direction perpendicular to the first direction, and the outlet section extends along the first direction to the outflow flow passage.
In an embodiment, the intermediate section comprises two obliquely extending portions and an intermediate portion extending in the first direction, the two obliquely extending portions being located at both ends of the intermediate portion and connected to the inlet section and the outlet section, respectively.
In one embodiment, the junction of the inlet section and the intermediate section, and the junction of the intermediate section and the outlet section are both circular arc transitions.
In one embodiment, the PVB film comprises a first colored portion, a white portion and a second colored portion which are connected side by side in sequence.
In an embodiment, the PVB film production facility still includes locates the mechanism that cuts in die head exit, it includes the cutter to cut the mechanism, the cutter is used for cutting first colored portion with the width of second colored portion in order to adjust the PVB film.
In an embodiment, the mechanism of cutting still includes locate the PVB film top and perpendicular to the horizontal pole of the moving direction of PVB film, cutter sliding connection in the horizontal pole and can for the horizontal pole goes up and down in order to adjust the cutting edge of cutter with the distance between the PVB film.
In one embodiment, the die is a coat hanger die, and the inner diameter of the inlet of the die is smaller than the inner diameter of the outlet of the die.
The PVB film production equipment provided by the application realizes the extrusion of three molten state materials through three independently operated first extruders, second extruders and third extruders, wherein the first extruders and the third extruders are used for extruding colored materials, and the second extruders are used for extruding white materials; because the first flow channel, the second flow channel and the third flow channel are respectively used for realizing the communication between the first extruder, the second extruder or the third extruder and the outflow flow channel, and the outlet of the first flow channel and the outlet of the third flow channel are respectively positioned at the two opposite sides of the outlet of the second flow channel, when three molten materials are converged into the outflow flow channel together, the colored materials flowing out of the first flow channel and the third flow channel are respectively positioned at the two opposite sides of the white material flowing out of the second flow channel, and a three-color PVB film with a preset thickness can be extruded after passing through the die head, the structure is simple, the production speed is high, the thickness uniformity is good, the requirement of a customer on the PVB film with color bar change is met, and the technical problem that the color bar on the PVB film produced by the conventional PVB film production line is single is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an extruding mechanism and a dispensing mechanism in a PVB film production apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a distribution mechanism and a die in a PVB film production apparatus according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a dispensing mechanism and a die in a PVB film manufacturing apparatus according to another embodiment of the present disclosure;
fig. 4 is a schematic view of a cutting mechanism and a PVB film in a PVB film production apparatus according to an embodiment of the present application.
The designations in the figures mean:
10. an extrusion mechanism; 11. a first extruder; 12. a second extruder; 13. a third extruder; 14. connecting a pipeline; 15. turning to an elbow;
20. a dispensing mechanism; 21. a main body; 22. a first flow passage; 221. an inlet section; 222. a middle section; 223. an outlet section; 23. a second flow passage; 24. a third flow path; 25. an outflow channel;
30. a die head;
41. a cutter; 42. a cross bar;
200. PVB film; 201. a first color section; 202. a white portion; 203. a second colored portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "inner," "outer," and the like are used herein to indicate an orientation or positional relationship based on that shown in the drawings for ease of description and simplicity of description only, and do not indicate or imply that the device or element so referred to must be oriented, constructed or operated in a particular orientation, and therefore should not be construed as limiting the application. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
To explain the technical solutions of the present application, the following description is made with reference to specific drawings and examples.
The embodiment of the application provides a PVB film production facility for preparing the PVB film of three kinds of colours to can be applied to building laminated glass, car laminated glass, solar photovoltaic glass, shellproof glass, sound-proof glass.
Referring to fig. 1, 2 and 4, in one embodiment of the present disclosure, a PVB film manufacturing apparatus includes an extrusion mechanism 10, a dispensing mechanism 20, and a die 30.
The extruding mechanism 10 includes a first extruder 11, a second extruder 12 and a third extruder 13, and the first extruder 11 and the third extruder 13 are used for extruding colored materials, and it is understood that the colors of the colored materials extruded by the first extruder 11 and the third extruder 13 may be the same or different. The colored materials extruded by the first extruder 11 and the third extruder 13 can be blue, green, yellow and other preset colors. The second extruder 12 is used for extruding white materials, wherein the materials extruded by the first extruder 11, the second extruder 12 and the third extruder 13 are all molten.
The distribution mechanism 20 comprises a main body 21, and a first flow channel 22, a second flow channel 23, a third flow channel 24 and an outflow flow channel 25 which are arranged on the main body 21, wherein the first extruder 11, the second extruder 12 and the third extruder 13 are respectively and correspondingly connected with an inlet a of the first flow channel, an inlet b of the second flow channel and an inlet c of the third flow channel, an outlet of the first flow channel 22, an outlet of the second flow channel 23 and an outlet of the third flow channel 24 are respectively communicated with an inlet of the outflow flow channel 25, the outlet of the first flow channel 22 and the outlet of the third flow channel 24 are respectively positioned at two opposite sides of the inlet of the outflow flow channel 25, and an outlet of the second flow channel 23 is positioned at the middle position of the inlet of the outflow flow channel 25, so that three molten state materials extruded by the first extruder 11, the second extruder 12 and the third extruder 13 respectively pass through the first flow channel 22, the second flow channel 23 and the third flow channel 24 and then are jointly merged into the outflow flow channel 25, and integration of the three molten state materials according to a required ratio is realized. The outlet of the first flow channel 22 and the outlet of the third flow channel 24 are respectively located on two opposite sides of the outlet of the second flow channel 23, that is, when three molten materials are converged into the outflow flow channel 25, the colored materials flowing out of the first flow channel 22 and the third flow channel 24 are respectively located on two opposite sides of the white material flowing out of the second flow channel 23.
The inlet of die 30 is connected to the outlet of outflow channel 25, and die 30 is used to extrude a predetermined thickness of PVB film 200. It is understood that PVB film 200 is a three-color PVB film 200 that is white in the middle and colored on both sides.
In this embodiment, the dispensing mechanism 20 further includes a heating element (not shown) disposed in the main body 21 for maintaining the temperature in the main body 21 within a certain range, so as to ensure that the materials in the first flow channel 22, the second flow channel 23 and the third flow channel 24 are always kept in a molten state, and avoid the reduction of fluidity of the materials due to too low ambient temperature in the flowing process, thereby avoiding the stagnation and aggregation of the materials.
The PVB film production equipment provided by the application realizes the extrusion of three molten state materials through three independently operated first extruders 11, second extruders 12 and third extruders 13, wherein the first extruders 11 and the third extruders 13 are used for extruding colored materials, and the second extruders 12 are used for extruding white materials; because the first flow channel 22, the second flow channel 23, and the third flow channel 24 are respectively used for realizing communication between the first extruder 11, the second extruder 12, or the third extruder 13 and the outflow flow channel 25, and the outlet of the first flow channel 22 and the outlet of the third flow channel 24 are respectively located on two opposite sides of the outlet of the second flow channel 23, when three molten materials are converged into the outflow flow channel 25 together, the colored materials flowing out of the first flow channel 22 and the third flow channel 24 are respectively located on two opposite sides of the white material flowing out of the second flow channel 23, and the three-color PVB film 200 with a preset thickness can be extruded through the die head 30.
Referring to fig. 1 and 2, in an embodiment of the present disclosure, the inlet b of the second flow channel is disposed at one side of the main body 21, the second flow channel 23 extends along the first direction (shown in the X direction), the outflow flow channel 25 is disposed at the other side of the main body 21 and is disposed corresponding to the second flow channel 23, and the inlet a of the first flow channel and the inlet c of the third flow channel are disposed at two opposite sides of the second flow channel 23, respectively. Therefore, the connection between the distribution mechanism 20 and the extrusion mechanism 10 is facilitated, and the flow channel positions corresponding to the first extruder 11 and the third extruder 13 in the extrusion mechanism 10 can be clearly confirmed; in addition, the outflow channel 25 is arranged on the other side of the main body 21 far away from the inlet b of the second channel, so that the phenomenon that three materials are merged too early to cause flow channeling among materials with different colors can be avoided, and the product quality is improved.
Wherein, along the first direction, the ratio of the length of the second flow channel 23 to the length of the outflow flow channel 25 is 3. That is, in the first direction, the distance between the inlet b of the second flow channel and the inlet of the outflow channel 25 is 3 times the distance between the inlet of the outflow channel 25 and the outlet of the outflow channel 25, so that the three materials respectively located in the first flow channel 22, the second flow channel 23 and the third flow channel 24 can be prevented from being merged too early to cause the cross flow among the materials with different colors. It is understood that in other embodiments of the present application, the ratio of the length of the second flow channel 23 to the length of the outflow flow channel 25 is any value from 2 to 1, and is not limited herein.
Specifically, in this embodiment, the first extruder 11 and the third extruder 13 are respectively located at two sides of the second extruder 12, the first extruder 11 may be turned back to communicate with the inlet a of the first flow channel of the distribution mechanism 20 through the connecting pipe 14 and the steering elbow 15, and the third extruder 13 may also be turned back to communicate with the inlet c of the third flow channel of the distribution mechanism 20 through the connecting pipe 14 and the steering elbow 15, so as to achieve output of molten color materials, and the layout is reasonable, thereby avoiding waste of floor space.
Referring to fig. 2, in the present embodiment, the third flow channels 24 and the first flow channels 22 are symmetrically disposed on two sides of the second flow channel 23. In this way, the first flow channel 22 and the third flow channel 24 for conveying the two color materials are arranged in the same manner, so that possible deviation caused by difference of the arrangement manners of the flow channels in the conveying process of the two color materials can be reduced, and accurate control of the conveying process of the two color materials can be improved.
It should be understood that, in other embodiments of the present application, the inlet c of the third flow channel and the inlet a of the first flow channel may also be disposed on the same side of the second flow channel 23, and it is only necessary to ensure that the outlet of the third flow channel 24 and the outlet of the first flow channel 22 are respectively located on two opposite sides of the inlet of the outflow flow channel 25, which is not limited herein.
Referring to fig. 2, in the present embodiment, the first flow channel 22 includes an inlet section 221, an intermediate section 222, and an outlet section 223 that are sequentially connected in a bending manner, the inlet section 221 extends along a second direction (shown in the Y direction) perpendicular to the first direction, and the outlet section 223 extends along the first direction to the outflow flow channel 25. In this way, the change of the conveying direction of the internal materials can be realized by bending the inlet section 221, the middle section 222 and the outlet section 223 which are connected, and the color materials in the first flow channel 22 can be finally merged with other materials along the first direction, so that the cross flow between the color materials is avoided.
Specifically, the middle section 222 includes two inclined extensions and a middle section extending in the first direction, the two inclined extensions being located at both ends of the middle section and connected to the inlet section 221 and the outlet section 223, respectively.
It can be understood that the structure of the third flow channel 24 is similar to that of the first flow channel 22, and the color material in the third flow channel 24 finally merges with other materials along the first direction, so as to avoid the flow channeling between different color materials, and the description thereof is omitted.
In addition, referring to fig. 2, in an embodiment of the present application, the junction between the inlet section 221 and the middle section 222 and the junction between the middle section 222 and the outlet section 223 are circular arc transitions. Therefore, no sharp corner exists in the first flow channel 22, the second flow channel 23 and the third flow channel 24, which can reduce or eliminate the stagnation of the materials in the flow channels, thereby avoiding the quality defects of overheating, yellowing, blackening and the like of the molten materials, improving the stability and the yield, and further improving the quality of the PVB film.
It is understood that, in other embodiments of the present application, the specific shapes of the first flow channel 22 and the third flow channel 24 may be other, and it is only necessary to ensure that the color material in the first flow channel 22 finally enters the outflow flow channel 25 from the outlet of the first flow channel 22 along the first direction, and the color material in the third flow channel 24 finally enters the outflow flow channel 25 from the outlet of the third flow channel 24 along the first direction. For example, referring to fig. 3, another embodiment of the present disclosure provides a distribution mechanism 20, wherein an inlet a of a first flow channel, an inlet b of a second flow channel, and an inlet c of a third flow channel are disposed on one side of a main body 21, the first flow channel 22, the second flow channel 23, and the third flow channel 24 all extend along a first direction (shown in the X direction), and an outflow flow channel 25 is disposed on the other side of the main body 21 and is disposed corresponding to the second flow channel 23. The first flow passage 22 includes an inlet section 221, an intermediate section 222, and an outlet section 223 connected in a bent manner, the inlet section 221 and the outlet section 223 are both parallel to the first direction, and an included angle between the extending direction of the intermediate section 222 and the first direction is an acute angle. In this embodiment, the ratio of the length of the second flow channel 23 to the length of the outflow flow channel 25 is 3, so that the problem that the three materials are merged too early to cause the flow channeling among the materials with different colors can be avoided, and the product quality is improved.
Referring to fig. 4, a pvb film 200 includes a first color portion 201, a white portion 202, and a second color portion 203 connected in series. That is, the white portion 202 is located at a middle position, and the first colored portion 201 and the second colored portion 203 are located at opposite sides of the white portion 202, respectively.
Referring to fig. 4, in an embodiment of the present application, the apparatus for producing a PVB film further includes a cutting mechanism disposed at the exit of the die, the cutting mechanism includes a cutting blade 41, and the cutting blade 41 is used for cutting the first color portion 201 and the second color portion 203 to adjust the width of the PVB film 200. Therefore, the width of the first color part 201 and the width of the second color part 203 on the PVB film 200 can be quickly adjusted according to the requirement of the order type, and the operation is simple.
Specifically, in this embodiment, the cutting mechanism further includes a cross bar 42 disposed on the top of the PVB film 200 and perpendicular to the moving direction of the PVB film 200, and the two cutting blades 41 are slidably connected to the cross bar 42 and can be lifted relative to the cross bar 42 to adjust the distance between the cutting edge of each cutting blade 41 and the PVB film 200. In this way, the adjustment of the width of the first color portion 201 and the width of the second color portion 203 can be realized by the reciprocating movement of the cutting knife 41, that is, the width of the whole PVB film 200 can be changed by adjusting the distance between the two cutting knives 41, and the cutting efficiency is high.
It is understood that the cutting edges of the cutters 41 are disposed toward the PVB film 200, wherein one of the cutters 41 is disposed on top of the first colored portion 201 and is used to cut the side of the first colored portion 201 away from the second colored portion 203, and the other cutter 41 is disposed on top of the second colored portion 203 and is used to cut the side of the second colored portion 203 away from the first colored portion 201.
In addition, PVB film production facility still can include coiling mechanism (not shown), is used for carrying out automatic rolling with accomplishing the three-colour PVB film 200 after cutting to make things convenient for subsequent transfer and transport. The coiling mechanism includes the backing roll that sets up along PVB film 200's width direction and the wind-up roll that is on a parallel with the backing roll, and during the transport, PVB film 200 is walked around and is passed the gap back between wind-up roll and the backing roll from the top of backing roll, fixes on the wind-up roll surface, rotates the wind-up roll, can be with PVB film 200 rolling on the wind-up roll.
In one embodiment of the present application, the extruding mechanism 10 further includes a plurality of adjusting members (not shown) respectively disposed in the first extruder 11, the second extruder 12 and the third extruder 13, and the adjusting members are used for adjusting the ratio of the two color materials and the white material to realize accurate control of the ratio of the three materials.
It will be appreciated that the first extruder 11 and the third extruder 13 can be dosed with clear PVB feedstock and corresponding pigments and heated to convert to a coloured molten mass, the second extruder 12 can be dosed with clear PVB feedstock and heated to convert to a white molten mass, and the ratio between the three masses can then be accurately controlled by means of a metering pump or the like.
In an embodiment of the present application, the die head 30 is a coat hanger type die head, and the inner diameter of the inlet of the die head 30 is smaller than the inner diameter of the outlet of the die head 30, so as to change the flow rate and the extrusion pressure of the mixed material in the die head 30, so that the three-color PVB film 200 with a preset thickness can be uniformly extruded, and the thickness control precision of the product is high, and the thickness uniformity is good.
The PVB film production equipment realizes the extrusion of three molten state materials through three independently operated first extruders 11, second extruders 12 and third extruders 13, the first extruders 11 and the third extruders 13 are used for extruding colored materials, and the second extruders 12 are used for extruding white materials; because the first flow channel 22, the second flow channel 23 and the third flow channel 24 are respectively used for realizing the communication between the first extruder 11, the second extruder 12 or the third extruder 13 and the outflow flow channel 25, and the outlet of the first flow channel 22 and the outlet of the third flow channel 24 are respectively positioned at the two opposite sides of the outlet of the second flow channel 23, when three molten materials are converged into the outflow flow channel 25 together, the colored materials flowing out of the first flow channel 22 and the third flow channel 24 are respectively positioned at the two opposite sides of the white material flowing out of the second flow channel 23, and the three-color PVB film 200 with a preset thickness can be extruded after passing through the die head 30, the structure is simple, the production speed is high, the thickness uniformity is good, the requirement of a customer on the PVB film 200 with color strip color change is met, and the technical problem that the color strip on the PVB film 200 produced by the existing PVB film production line is single is solved; in addition, the width of the first color part 201 and the width of the second color part 203 on the PVB film 200 can be quickly adjusted through the cutter 41 according to the requirement of the order type, and the operation is simple.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. The utility model provides a PVB film production facility which characterized in that, PVB film production facility includes:
the extruding mechanism comprises a first extruder, a second extruder and a third extruder, wherein the first extruder and the third extruder are used for extruding colored materials, and the second extruder is used for extruding white materials;
the distribution mechanism comprises a main body, and a first flow channel, a second flow channel, a third flow channel and an outflow flow channel which are arranged on the main body, wherein the first extruder, the second extruder and the third extruder are respectively and correspondingly connected with an inlet of the first flow channel, an inlet of the second flow channel and an inlet of the third flow channel, an outlet of the first flow channel, an outlet of the second flow channel and an outlet of the third flow channel are communicated with an inlet of the outflow flow channel, and the outlet of the first flow channel and the outlet of the third flow channel are respectively positioned on two opposite sides of the outlet of the second flow channel;
and the inlet of the die head is connected with the outlet of the outflow runner, and the die head is used for extruding the PVB film with the preset thickness.
2. The PVB film production apparatus of claim 1, wherein the inlet of the second channel is disposed on one side of the main body and the second channel extends along a first direction, the outflow channel is disposed on the other side of the main body and corresponds to the second channel, and the inlet of the first channel and the inlet of the third channel are disposed on two opposite sides of the second channel, respectively.
3. The PVB film production apparatus of claim 2, wherein the third flow channel is symmetrically disposed with respect to the first flow channel on both sides of the second flow channel.
4. The apparatus of claim 3, wherein the first flow channel comprises an inlet section, an intermediate section, and an outlet section that are sequentially connected in a zigzag manner, the inlet section extending in a second direction perpendicular to the first direction, and the outlet section extending in the first direction to the outlet flow channel.
5. The PVB film production apparatus of claim 4, wherein the intermediate section comprises two inclined extensions and a middle section extending along the first direction, wherein the two inclined extensions are located at opposite ends of the middle section and are connected to the inlet section and the outlet section, respectively.
6. The PVB film production facility of claim 4, wherein the junction of the inlet section and the intermediate section, and the junction of the intermediate section and the outlet section, are both circular arc transitions.
7. The apparatus of claim 1, wherein the PVB film comprises a first color portion, a white portion, and a second color portion connected side by side in this order.
8. The apparatus of claim 7, further comprising a cutting mechanism disposed at the exit of the die, wherein the cutting mechanism comprises a cutting blade, and wherein the cutting blade is configured to cut the first color portion and the second color portion to adjust the width of the PVB film.
9. The apparatus of claim 8, wherein the cutting mechanism further comprises a cross bar disposed on top of the PVB film and perpendicular to the moving direction of the PVB film, and the cutting blade is slidably connected to the cross bar and can be moved up and down relative to the cross bar to adjust the distance between the cutting edge of the cutting blade and the PVB film.
10. The PVB film manufacturing apparatus of any of claims 1-9, wherein the die is a coat hanger die having an inner diameter at the inlet of the die that is less than the inner diameter at the outlet of the die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221345043.XU CN217648901U (en) | 2022-05-31 | 2022-05-31 | PVB film production facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221345043.XU CN217648901U (en) | 2022-05-31 | 2022-05-31 | PVB film production facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217648901U true CN217648901U (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221345043.XU Active CN217648901U (en) | 2022-05-31 | 2022-05-31 | PVB film production facility |
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|---|---|
| CN (1) | CN217648901U (en) |
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- 2022-05-31 CN CN202221345043.XU patent/CN217648901U/en active Active
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