CN215704045U - Three-layer co-extrusion inner-cooling die head and film blowing machine - Google Patents
Three-layer co-extrusion inner-cooling die head and film blowing machine Download PDFInfo
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- CN215704045U CN215704045U CN202121183183.7U CN202121183183U CN215704045U CN 215704045 U CN215704045 U CN 215704045U CN 202121183183 U CN202121183183 U CN 202121183183U CN 215704045 U CN215704045 U CN 215704045U
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Abstract
The utility model discloses a three-layer co-extrusion inner-cooling die head and a film blowing machine, wherein the three-layer co-extrusion inner-cooling die head comprises a feeding assembly, an inner die sleeve, an outer die sleeve, a die body and a discharging assembly, the feeding assembly is provided with a first feeding port, a second feeding port, a third feeding port, a plurality of first feeding channels, a plurality of second feeding channels and a plurality of third feeding channels, the feeding ports are correspondingly communicated with the plurality of feeding channels, the inner die sleeve is sleeved on the feeding assembly, the plurality of first feeding channels are formed between the inner die sleeve and the feeding assembly, the outer die sleeve is sleeved on the inner die sleeve, the plurality of second feeding channels are formed between the outer die sleeve and the inner die sleeve, the die body is sleeved on the outer die sleeve, the plurality of third feeding channels are formed between the die body and the outer die sleeve, the discharging assembly is provided with a discharging channel, and the plurality of feeding channels are respectively communicated with the discharging channel. The technical scheme of the utility model aims to provide the three-layer co-extrusion inner cooling die head which has more uniform flow channel distribution and reduces pressure so as to realize uniform film thickness.
Description
Technical Field
The utility model relates to the technical field of film blowing machines, in particular to a three-layer co-extrusion inner-cooling die head and a film blowing machine using the same.
Background
The film blowing machine is a device for heating and melting plastic particles and then blowing the plastic particles into a film. The die is one of the components of a film blowing machine and is used to blow molten plastic particles into a film bubble.
In order to meet the requirements of special functions of plastic film packaging materials in the production process, various characteristic materials (such as ventilation, water resistance, heat preservation, toughness and the like) are blown and co-extruded together to form a multifunctional plastic film, and a multi-layer co-extrusion film blowing machine is developed.
However, in the process of implementing the technical solution of the present invention in the embodiment of the present application, the inventor of the present application finds that the above-mentioned technology has at least the following technical problems:
the existing three-layer co-extrusion die head has the problems of uneven feeding and excessive feeding pressure, so that the thickness of a film is uneven, and the product quality is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a three-layer co-extrusion inner-cooling die head, and aims to provide a three-layer co-extrusion inner-cooling die head which is more uniform in flow channel distribution, reduces pressure and further realizes uniform film thickness.
In order to achieve the purpose, the three-layer co-extrusion inner-cooling die head provided by the utility model is used for producing a film, and comprises the following components:
the feeding assembly is provided with a feeding port and a feeding channel, the feeding port comprises a first feeding port, a second feeding port and a third feeding port which are mutually independent, the feeding channel comprises a plurality of first feeding channels, a plurality of second feeding channels and a plurality of third feeding channels which are mutually independent, the first feeding ports are correspondingly communicated with the plurality of first feeding channels, the second feeding ports are correspondingly communicated with the plurality of second feeding channels, and the third feeding ports are correspondingly communicated with the plurality of third feeding channels;
the inner die sleeve is sleeved on the feeding assembly, a plurality of first feeding channels are formed between the inner die sleeve and the feeding assembly, and the first feeding channels are communicated with the first feeding channels in a one-to-one correspondence manner;
the outer die sleeve is sleeved on the inner die sleeve, a plurality of second feeding channels are formed between the outer die sleeve and the inner die sleeve, and the second feeding channels are communicated with the second feeding channels in a one-to-one correspondence manner;
the die body is sleeved on the outer die sleeve, a plurality of third feeding channels are formed between the die body and the outer die sleeve, and the third feeding channels are communicated with the third feeding channels in a one-to-one correspondence manner; and
the discharging assembly is connected with the feeding assembly and the die body respectively, the discharging assembly is provided with a discharging channel, and the first feeding channel, the second feeding channel and the third feeding channel are communicated with the discharging channel respectively.
In one embodiment, the material feeding assembly includes:
the feeding port is formed in the first feeding base;
the second feeding base is arranged on the first feeding base; and
the mold core is arranged on one side, away from the first feeding base, of the second feeding base, and the inner mold sleeve is sleeved on the mold core;
the first feeding channel is arranged on the mold core, the second feeding base is communicated with the mold core to form the second feeding channel, and the first feeding base, the second feeding base and the mold core are communicated to form the third feeding channel.
In an embodiment, the first feeding base and the second feeding base are connected through a threaded fastener, and the second feeding base and the mold core are connected through a threaded fastener.
In one embodiment, the outfeed assembly comprises:
the die nozzle is arranged on one side of the die core, which is far away from the second feeding base; and
the die wrist is arranged on the die body and sleeved outside the die nozzle, and the discharging channel is formed between the die nozzle and the die wrist.
In one embodiment, the three-layer co-extrusion internal cooling die head further comprises three feeding pipelines, and the feeding pipelines are connected with the feeding ports in a one-to-one correspondence manner.
In an embodiment, eight of the first feeding channel, eight of the second feeding channel and eight of the third feeding channel are provided.
In an embodiment, a plurality of first spiral grooves are formed in one side, facing the inner die sleeve, of the die core, the first feeding channel is formed between the first spiral grooves and the inner die sleeve, one end of each first spiral groove is communicated with the first feeding channel, and the other end of each first spiral groove spirally rises along the outer side of the die core and is communicated with the discharging channel.
In an embodiment, one side of the inner die sleeve, which faces the outer die sleeve, is provided with a plurality of second spiral grooves, the second feeding channel is formed between the second spiral grooves and the outer die sleeve, one end of each second spiral groove is communicated with the second feeding channel, and the other end of each second spiral groove spirally rises along the outer side of the inner die sleeve and is communicated with the discharging channel.
In an embodiment, a plurality of third spiral grooves are formed in one side, facing the die body, of the outer die sleeve, a third feeding channel is formed between the third spiral grooves and the die body, one end of each third spiral groove is communicated with the third feeding channel, and the other end of each third spiral groove spirally rises along the outer side of the outer die sleeve and is communicated with the discharging channel.
The utility model also provides a film blowing machine which comprises the three-layer co-extrusion inner-cooling die head.
The technical scheme of the utility model comprises a feeding assembly, an inner die sleeve, an outer die sleeve, a die body and a discharging assembly, wherein the feeding assembly is provided with a feeding port and a feeding channel, the feeding port comprises a first feeding port, a second feeding port and a third feeding port which are mutually independent, the feeding channel comprises a plurality of first feeding channels, a plurality of second feeding channels and a plurality of third feeding channels which are mutually independent, the first feeding ports are correspondingly communicated with the plurality of first feeding channels, the second feeding ports are correspondingly communicated with the plurality of second feeding channels, the third feeding ports are correspondingly communicated with the plurality of third feeding channels, the inner die sleeve is sleeved on the feeding assembly, the plurality of first feeding channels are formed between the inner die sleeve and the feeding assembly, the first feeding channels are communicated with the first feeding channels in a one-to-one correspondence manner, the outer die sleeve is sleeved on the inner die sleeve, the plurality of second feeding channels are formed between the outer die sleeve and the inner die sleeve, and the second feeding channels are communicated with the second feeding channels in a one-to-one correspondence manner, the outer die sleeve is located to the die body cover, form a plurality of third pay-off passageways between die body and the outer die sleeve, third pay-off passageway and third pan feeding passageway one-to-one intercommunication, ejection of compact subassembly is connected with pan feeding subassembly and die body respectively, ejection of compact subassembly is equipped with discharging channel, first pay-off passageway, second pay-off passageway and third pay-off passageway communicate with discharging channel respectively, owing to adopted the pan feeding mouth to correspond a plurality of pan feeding passageways in order to realize the even technical means of pay-off, so, effectively solved among the prior art pan feeding inhomogeneous and pan feeding pressure too big and then lead to the uneven technical problem of film thickness, and then realized that the runner distributes more evenly, reduce pressure and then realize the even technological effect of film thickness.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a three-layer co-extrusion inner cooling die of the present invention;
FIG. 2 is a schematic front view of a three layer co-extrusion internal cooling die of the present invention;
FIG. 3 is a schematic top view of a three layer co-extrusion internal cooling die of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 3;
FIG. 7 is a cross-sectional view taken along line D-D of FIG. 3;
the reference numbers illustrate:
a three-layer co-extrusion inner cooling die head 100; a feeding assembly 10; a first feeding base 11; a feed inlet 111; a second feeding base 12; a mold core 13; a first feeding channel 14; a second feeding channel 15; a third feeding channel 16; an inner die case 20; a first feed channel 21; an outer die case 30; a second feeding channel 31; a mold body 40; a third feeding passage 41; a discharge assembly 50; a die lip 51; a mold wrist 52; a discharge channel 53; a feed line 60; an air duct assembly 70.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a three-layer co-extrusion inner cooling die head 100 which is used for producing a thin film.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
In an embodiment of the present invention, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, the three-layer co-extrusion internal cooling die head 100 includes a feeding assembly 10, an inner die sleeve 20, an outer die sleeve 30, a die body 40 and a discharging assembly 50, wherein the feeding assembly 10 is provided with a feeding port 111 and a feeding channel, the feeding port 111 includes a first feeding port, a second feeding port and a third feeding port that are independent of each other, the feeding channel includes a plurality of first feeding channels 14, a plurality of second feeding channels 15 and a plurality of third feeding channels 16 that are independent of each other, the first feeding port is correspondingly communicated with the plurality of first feeding channels 14, the second feeding port is correspondingly communicated with the plurality of second feeding channels 15, the third feeding port is correspondingly communicated with the plurality of third feeding channels 16, the inner die sleeve 20 is sleeved on the feeding assembly 10, the plurality of first feeding channels 21 are formed between the inner die sleeve 20 and the feeding assembly 10, the first feeding channels 21 are communicated with the first feeding channels 14 in a one-to-one correspondence mode, the outer die sleeve 30 is sleeved on the inner die sleeve 20, a plurality of second feeding channels 31 are formed between the outer die sleeve 30 and the inner die sleeve 20, the second feeding channels 31 are communicated with the second feeding channels 15 in a one-to-one correspondence mode, the die body 40 is sleeved on the outer die sleeve 30, a plurality of third feeding channels 41 are formed between the die body 40 and the outer die sleeve 30, the third feeding channels 41 are communicated with the third feeding channels 16 in a one-to-one correspondence mode, the discharging assembly 50 is respectively connected with the feeding assembly 10 and the die body 40, the discharging assembly 50 is provided with a discharging channel 53, and the first feeding channels 21, the second feeding channels 31 and the third feeding channels 41 are respectively communicated with the discharging channel 53.
It can be understood that, the solution that forms after the plastic particles are heated and melted enters the three-layer co-extrusion inner cooling die head 100 from the material inlet 111, different material inlets 111 can be the same plastic solution, or different plastic solutions are prepared according to the requirements, the material inlet 111 is correspondingly connected with a plurality of material inlet channels, so that the plastic particles are uniformly dispersed to the whole three-layer co-extrusion inner cooling die head 100.
The technical scheme of the utility model comprises a feeding assembly 10, an inner mold sleeve 20, an outer mold sleeve 30, a mold body 40 and a discharging assembly 50, wherein the feeding assembly 10 is provided with a feeding port 111 and a feeding channel, the feeding port 111 comprises a first feeding port, a second feeding port and a third feeding port which are mutually independent, the feeding channel comprises a plurality of first feeding channels 14, a plurality of second feeding channels 15 and a plurality of third feeding channels 16 which are mutually independent, the first feeding port is correspondingly communicated with the plurality of first feeding channels 14, the second feeding port is correspondingly communicated with the plurality of second feeding channels 15, the third feeding port is correspondingly communicated with the plurality of third feeding channels 16, the inner mold sleeve 20 is sleeved on the feeding assembly 10, the plurality of first feeding channels 21 are formed between the inner mold sleeve 20 and the feeding assembly 10, the first feeding channels 21 are correspondingly communicated with the first feeding channels 14 one by one, the outer mold sleeve 30 is sleeved on the inner mold sleeve 20, and a plurality of second feeding channels 31 are formed between the outer mold sleeve 30 and the inner mold sleeve 20, the second feeding channels 31 are communicated with the second feeding channels 15 in a one-to-one correspondence manner, the outer die sleeve 30 is sleeved with the die body 40, a plurality of third feeding channels 41 are formed between the die body 40 and the outer die sleeve 30, the third feeding channels 41 are communicated with the third feeding channels 16 in a one-to-one correspondence manner, the discharging component 50 is respectively connected with the feeding component 10 and the die body 40, the discharging component 50 is provided with a discharging channel 53, the first feeding channel 21, the second feeding channel 31 and the third feeding channel 41 are respectively communicated with the discharging channel 53, and due to the adoption of the technical means that the feeding port 111 corresponds to the plurality of feeding channels to realize uniform feeding, the technical problems that in the prior art, feeding is uneven, feeding pressure is too large and the film thickness is uneven are effectively solved, the technical effects that the flow channel distribution is more even, and the pressure is reduced and the film thickness is even are further realized.
In an embodiment of the present invention, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the feeding assembly 10 includes a first feeding base 11, a second feeding base 12 and a mold core 13, wherein a feeding port 111 is opened in the first feeding base 11; the second feeding base 12 is arranged on the first feeding base 11; the mold core 13 is arranged on one side of the second feeding base 12 far away from the first feeding base 11, and the inner mold sleeve 20 is sleeved on the mold core 13; the first feeding channel 14 is arranged on the mold core 13, the second feeding base 12 is communicated with the mold core 13 to form a second feeding channel 15, and the first feeding base 11, the second feeding base 12 and the mold core 13 are communicated to form a third feeding channel 16. As shown in fig. 5, 6 and 7, the three feeding ports 111 are disposed at different positions of the first feeding base 11, and the feeding ports 111 are connected to the feeding channel through three transition flow channels disposed inside the feeding assembly 10.
In the embodiment of the utility model, the first feeding base 11 and the second feeding base 12 are connected through a threaded fastener, and the second feeding base 12 and the mold core 13 are connected through a threaded fastener. The mode of connecting through threaded fastener makes things convenient for the dismouting.
In an embodiment of the present invention, as shown in fig. 4, 5, 6 and 7, discharge assembly 50 comprises a die tip 51 and a die wrist 52, wherein die tip 51 is disposed on a side of die core 13 away from second inlet base 12; the die wrist 52 is arranged on the die body 40 and sleeved outside the die nozzle 51, and a discharge channel 53 is formed between the die nozzle 51 and the die wrist 52. The discharge passage 53 is circular in shape so that the thin film blown out from the discharge passage 53 is in the form of bubble.
In the present invention, as shown in fig. 1 and fig. 2, the three-layer co-extrusion internal cooling die head 100 further includes an air duct assembly 70, the die core 13 is provided with a plurality of air inlets, the air duct assembly 70 is installed at the discharging assembly 50, and one end of the air duct assembly extends into the die core 13 and is communicated with the air inlets, and the air duct assembly 70 plays a role in cooling the film bubble.
In the embodiment of the present invention, as shown in fig. 1 and fig. 2, the triple co-extrusion internal cooling die 100 further includes three feeding pipes 60, and the feeding pipes 60 are connected to the feeding ports 111 in a one-to-one correspondence manner. And one end of the feeding pipeline 60, which is far away from the three-layer co-extrusion inner-cooling die head 100, is a flange connecting part.
In the exemplary embodiment of the utility model, eight of the first inlet channel 14, the second inlet channel 15 and the third inlet channel 16 are provided. The first feeding channel 14, the second feeding channel 15 and the third feeding channel 16 are all arranged in a circumferentially and uniformly distributed manner.
In the embodiment of the present invention, as shown in fig. 4, 5, 6 and 7, a plurality of first spiral grooves are provided on one side of the mold core 13 facing the inner mold sleeve 20, a first feeding channel 21 is formed between the first spiral grooves and the inner mold sleeve 20, one end of each first spiral groove is communicated with the first feeding channel 14, and the other end of each first spiral groove spirally rises along the outer side of the mold core 13 and is communicated with the discharging channel 53. The spiral feeding channel enables the flow channel to be longer and feeding to be more uniform.
In the embodiment of the present invention, as shown in fig. 4, 5, 6 and 7, a plurality of second spiral grooves are formed on one side of the inner die sleeve 20 facing the outer die sleeve 30, a second feeding channel 31 is formed between the second spiral grooves and the outer die sleeve 30, one end of each second spiral groove is communicated with the second feeding channel 15, and the other end of each second spiral groove spirally rises along the outer side of the inner die sleeve 20 and is communicated with the discharging channel 53. The spiral feeding channel enables the flow channel to be longer and feeding to be more uniform.
In the embodiment of the present invention, as shown in fig. 4, 5, 6 and 7, a plurality of third spiral grooves are formed on one side of the outer die sleeve 30 facing the die body 40, a third feeding channel 41 is formed between the third spiral grooves and the die body 40, one end of each third spiral groove is communicated with the third feeding channel 16, and the other end of each third spiral groove spirally rises along the outer side of the outer die sleeve 30 and is communicated with the discharging channel 53. The spiral feeding channel enables the flow channel to be longer and feeding to be more uniform.
The utility model further provides a film blowing machine (not shown in the figure), which comprises a three-layer co-extrusion inner-cooling die head 100, the specific structure of the three-layer co-extrusion inner-cooling die head 100 refers to the above embodiments, and the film blowing machine adopts all the technical schemes of all the above embodiments, so that the film blowing machine at least has all the beneficial effects brought by the technical schemes of the above embodiments, and the details are not repeated herein.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a three-layer is crowded interior cold die head altogether for produce film, its characterized in that, three-layer is crowded interior cold die head altogether includes:
the feeding assembly is provided with a feeding port and a feeding channel, the feeding port comprises a first feeding port, a second feeding port and a third feeding port which are mutually independent, the feeding channel comprises a plurality of first feeding channels, a plurality of second feeding channels and a plurality of third feeding channels which are mutually independent, the first feeding ports are correspondingly communicated with the plurality of first feeding channels, the second feeding ports are correspondingly communicated with the plurality of second feeding channels, and the third feeding ports are correspondingly communicated with the plurality of third feeding channels;
the inner die sleeve is sleeved on the feeding assembly, a plurality of first feeding channels are formed between the inner die sleeve and the feeding assembly, and the first feeding channels are communicated with the first feeding channels in a one-to-one correspondence manner;
the outer die sleeve is sleeved on the inner die sleeve, a plurality of second feeding channels are formed between the outer die sleeve and the inner die sleeve, and the second feeding channels are communicated with the second feeding channels in a one-to-one correspondence manner;
the die body is sleeved on the outer die sleeve, a plurality of third feeding channels are formed between the die body and the outer die sleeve, and the third feeding channels are communicated with the third feeding channels in a one-to-one correspondence manner; and
the discharging assembly is connected with the feeding assembly and the die body respectively, the discharging assembly is provided with a discharging channel, and the first feeding channel, the second feeding channel and the third feeding channel are communicated with the discharging channel respectively.
2. The triple co-extrusion internal cooling die of claim 1, wherein the feed assembly comprises:
the feeding port is formed in the first feeding base;
the second feeding base is arranged on the first feeding base; and
the mold core is arranged on one side, away from the first feeding base, of the second feeding base, and the inner mold sleeve is sleeved on the mold core;
the first feeding channel is arranged on the mold core, the second feeding base is communicated with the mold core to form the second feeding channel, and the first feeding base, the second feeding base and the mold core are communicated to form the third feeding channel.
3. The triple co-extrusion internal cooling die head of claim 2, wherein the first feeding base is connected with the second feeding base through a threaded fastener, and the second feeding base is connected with the die core through a threaded fastener.
4. The triple co-extrusion internal cooling die of claim 2, wherein the discharge assembly comprises:
the die nozzle is arranged on one side of the die core, which is far away from the second feeding base; and
the die wrist is arranged on the die body and sleeved outside the die nozzle, and the discharging channel is formed between the die nozzle and the die wrist.
5. The triple co-extrusion internal cooling die head of claim 1, further comprising three feeding pipes, wherein the feeding pipes are connected with the feeding ports in a one-to-one correspondence manner.
6. The triple co-extrusion internal cooling die head of claim 1, wherein there are eight of the first feed channel, the second feed channel, and the third feed channel.
7. The triple co-extrusion inner-cooling die head as claimed in claim 2, wherein a plurality of first spiral grooves are formed on one side of the die core facing the inner die sleeve, the first feeding channel is formed between the first spiral grooves and the inner die sleeve, one end of each first spiral groove is communicated with the first feeding channel, and the other end of each first spiral groove spirally rises along the outer side of the die core and is communicated with the discharging channel.
8. The triple co-extrusion inner cooling die head as claimed in claim 2, wherein a plurality of second spiral grooves are formed on one side of the inner die sleeve facing the outer die sleeve, the second feeding channel is formed between the second spiral grooves and the outer die sleeve, one end of each second spiral groove is communicated with the second feeding channel, and the other end of each second spiral groove spirally rises along the outer side of the inner die sleeve and is communicated with the discharging channel.
9. The triple co-extrusion inner cooling die head as claimed in claim 2, wherein a plurality of third spiral grooves are formed on one side of the outer die sleeve facing the die body, the third feeding channel is formed between the third spiral grooves and the die body, one end of each third spiral groove is communicated with the third feeding channel, and the other end of each third spiral groove spirally rises along the outer side of the outer die sleeve and is communicated with the discharging channel.
10. A film blowing machine characterized in that it comprises a triple co-extrusion internal cooling die according to any of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121183183.7U CN215704045U (en) | 2021-05-29 | 2021-05-29 | Three-layer co-extrusion inner-cooling die head and film blowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121183183.7U CN215704045U (en) | 2021-05-29 | 2021-05-29 | Three-layer co-extrusion inner-cooling die head and film blowing machine |
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| CN215704045U true CN215704045U (en) | 2022-02-01 |
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| CN202121183183.7U Active CN215704045U (en) | 2021-05-29 | 2021-05-29 | Three-layer co-extrusion inner-cooling die head and film blowing machine |
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- 2021-05-29 CN CN202121183183.7U patent/CN215704045U/en active Active
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Address after: 528000 No. 20, Honggang section, Guangzhu highway, Daliang street, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong xiongqiu Machinery Technology Co.,Ltd. Address before: 528300 No. 20, Honggang section, Guangzhu highway, Daliang street, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN SHUNDE XIONGQIU PLASTIC MACHINERY Co.,Ltd. |