CN219338487U - Extrusion molding machine - Google Patents

Abstract

The utility model discloses an extrusion molding machine, which comprises an extrusion mechanism and an extrusion die, wherein the extrusion mechanism comprises an extrusion channel, a feed inlet is formed in the outer side wall of the extrusion die, the extrusion channel is connected with the feed inlet, and a first molding channel, a second molding channel, a third molding channel, a fourth molding channel, a fifth molding channel and a main molding channel are formed in the extrusion die; the extrusion molding machine is provided with the extrusion channels so as to convey materials to the extrusion die, and then the materials are conveyed to the first molding channel, the second molding channel, the third molding channel, the fourth molding channel, the fifth molding channel and the main molding channel through the first molding channel, the second molding channel, the third molding channel, the fourth molding channel and the fifth molding channel which are formed in the extrusion die, and then the materials are combined into a five-layer structure to enter the main molding channel for extrusion, so that a film with the five-layer structure is extruded, and the practicability of the whole structure is strong.

Description

Extrusion molding machine

Technical Field

The utility model relates to the technical field of extrusion molding, in particular to an extrusion molding machine.

Background

In the technical field of extrusion molding, an extrusion screw is usually adopted to be matched with a die, and after the extrusion screw stirs plastic melt, the plastic melt is conveyed into the die for extrusion, but the conventional die cannot extrude a film with a multilayer structure, and part of production requirements cannot be met gradually. The utility model discloses a film extrusion molding system, is disclosed for CN108115919A, including extrusion device and forming device, forming device sets up extrusion device's extrusion mouth department, extrusion device melts the plastic resin and extrudes into the film primary product, forming device will the film primary product of extrusion device cooling, stretch back obtain the film finished product. According to the utility model, the film primary product extruded by the extrusion device is rapidly cooled by the forming device, the thickness is adjusted by stretching and the wrinkles are eliminated, so that the quality of the film is improved, the tungsten wire and the static electricity generating device are arranged, the tungsten wire and the cooling roller are provided with different charges, the film primary product is provided with the same charges as the tungsten wire after being contacted with the tungsten wire, the charges are opposite to those of the cooling roller, under the principle of opposite attraction, the film is attached to the peripheral surface of the cooling roller under the action of the charges, and the thickness is adjusted by stretching and the wrinkles are removed under the rotation of the rotating roller. The extrusion molding machine has a simplified structure, but cannot extrude at least three layers or more.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide an extrusion molding machine with strong practicability.

In order to achieve the above purpose, the present utility model provides the following solutions: the extrusion molding machine comprises an extrusion mechanism and an extrusion mold, wherein the extrusion mechanism comprises an extrusion passage, the outer side wall of the extrusion mold is provided with a feed inlet, the extrusion passage is connected with the feed inlet, the feed inlet is respectively communicated with the feed inlet, and the discharge ends of the first molding passage, the second molding passage, the third molding passage, the fourth molding passage and the fifth molding passage are respectively connected with the main passage.

The beneficial effects of the utility model are as follows: the extrusion molding machine is used for extruding a film with a five-layer structure, the extrusion channels are arranged to convey plastic melt to the extrusion die, and then the material is conveyed to the first molding channel, the second molding channel, the third molding channel, the fourth molding channel, the fifth molding channel and the main molding channel through the first molding channel, the second molding channel, the fourth molding channel, the fifth molding channel which are formed in the extrusion die, and then the film with the five-layer structure is formed by combining the materials into the five-layer structure to enter the main molding channel for extrusion, so that the film with the five-layer structure is extruded, and the practicability of the whole structure is strong.

Further, the extrusion mechanism comprises a machine base, a feeding hopper, a feeding motor and an extrusion screw, wherein the extrusion channel is formed in the machine base, the extrusion channel is rotationally connected with the extrusion screw, the front end of the extrusion channel is provided with a feeding port, and the feeding hopper is connected with the feeding port. After the structure is adopted, the plastic melt is input.

Further, the feeding motor is connected with a feeding reduction gearbox, the feeding reduction gearbox is connected with a driving wheel, the extrusion screw is coaxially connected with a driven wheel, the driving wheel is connected with the driven wheel through a transmission belt, a spiral part is formed on the outer side wall of the extrusion screw, and the spiral part extends along the length direction of the extrusion screw in a spiral mode. By adopting the structure, the extrusion screw is driven to rotate.

Further, be provided with a plurality of cooling fans on the frame, a plurality of cooling fans is located extrusion passageway under, a plurality of cooling fans is along extruding passageway extending direction equidistant arrangement, cooling fans is used for cooling down to extruding the pipeline. After the structure is adopted, the extrusion temperature of the plastic melt can be adjusted according to actual requirements.

Further, be provided with the screen changer between extrusion passageway and the feed inlet, it has material passageway, filtration passageway to change to take shape in the screen changer, material passageway is extruded in the connection of changeing, filtration passageway connects the feed inlet, it is provided with the filter screen to change between material passageway and the filtration passageway, the filter screen is cylindric structure, it has the guide head to take shape in the filtration passageway. By adopting the structure, the utility model realizes the filtration of plastic melt by arranging the replacement net device, and the area of the filter net is large, the accumulation is avoided, the net replacement period is prolonged, and the guide head is used for guiding the plastic melt to flow.

Further, a feeding seat and a distribution disc are arranged in the extrusion die, the feeding seat is internally provided with the feeding inlet, the distribution disc is arranged up and down with the feeding seat, the distribution disc is provided with a first feeding channel, a second feeding channel, a third feeding channel, a fourth feeding channel and a fifth feeding channel, the feeding inlet is respectively connected with the first feeding channel, the second feeding channel, the third feeding channel, the fourth feeding channel and the fifth feeding channel, the first feeding channel is connected with the first forming channel, the second feeding channel is connected with the second forming channel, the third feeding channel is connected with the third forming channel, the fourth feeding channel is connected with the fourth forming channel, and the fifth feeding channel is connected with the fifth forming channel.

Further, a forming cavity is formed in the extrusion die, a first forming disc, a second forming disc, a third forming disc and a fourth forming disc are arranged in the forming cavity, the cross sections of the first forming disc, the second forming disc, the third forming disc and the fourth forming disc are of arc structures, and the first forming disc, the second forming disc, the third forming disc and the fourth forming disc are sequentially arranged from inside to outside.

Further, the first molding channel is formed by a gap between the first molding disc and the molding cavity, the second molding channel is formed by a gap between the first molding disc and the second molding disc, the third molding channel is formed by a gap between the second molding disc and the third molding disc, the fourth molding channel is formed by a gap between the third molding disc and the fourth molding cavity, and the fifth molding channel is formed by a gap between the fourth molding disc and the molding cavity.

Further, the discharge ends of the first molding channel, the third molding channel and the fifth molding channel are commonly connected with the main molding channel, the discharge end of the second molding channel is connected with the first molding channel, and the discharge end of the fourth molding channel is connected with the fifth molding channel.

Further, a guide block is arranged on the extrusion die and is positioned at the discharge end of the main extrusion channel for guiding the extrusion of the film. After the structure is adopted, the annular film extrusion is guided.

Drawings

Fig. 1 is a front view of the overall structure of the present utility model.

Fig. 2 is a front view of the overall structure of the present utility model.

Fig. 3 is a partial enlarged view of fig. 2 at a.

Fig. 4 is an internal structural diagram of the screen changer of the present utility model.

Fig. 5 is a top view of the feed block of the present utility model.

Fig. 6 is a partial cross-sectional view of B-B in fig. 5.

Fig. 7 is a sectional view showing the internal structure of the feed block of the present utility model.

Fig. 8 is a bottom view of the feed block of the present utility model.

Fig. 9 is a partial cross-sectional view of C-C of fig. 8.

Fig. 10 is a cross-sectional view of the internal structure of the distribution plate of the present utility model.

Fig. 11 is a top view of the distribution plate of the present utility model.

Fig. 12 is a bottom view of the dispensing tray of the present utility model.

Fig. 13 is a partial cross-sectional view of D-D in fig. 12.

Wherein 11 is a stand, 111 is an extrusion channel, 112 is an extrusion screw, 113 is a driven wheel, 12 is a feed hopper, 13 is a feed motor, 131 is a feed reduction gearbox, 132 is a driving wheel, 133 is a transmission belt, 14 is a screen changer, 141 is a transfer channel, 142 is a filter channel, 143 is a filter screen, 144 is a guide head, 15 is a heat radiation fan, 2 is an extrusion die, 211 is a first forming channel, 212 is a second forming channel, 213 is a third forming channel, 214 is a fourth forming channel, 215 is a fifth forming channel, 22 is a main forming channel, 23 is a feed seat, 231 is a feed port, 24 is a distribution plate, 241 is a first feed channel, 242 is a second feed channel, 243 is a third feed channel, 244 is a fourth feed channel, 245 is a fifth feed channel, 25 is a forming cavity, 251 is a first forming plate, 252 is a second forming plate, 253 is a third forming plate, 254 is a fourth forming plate, and 26 is a guide block.

Description of the embodiments

The following description of the embodiments of the present utility model will be made more complete and less obvious to those skilled in the art, based on the embodiments of the present utility model, for a part, but not all of the embodiments of the present utility model, without making any inventive effort.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 13, an extrusion molding machine includes an extrusion mechanism and an extrusion mold 2, the extrusion mechanism includes an extrusion channel 111, a feed inlet 231 is formed on an outer side wall of the extrusion mold 2, the extrusion channel 111 is connected with the feed inlet 231, a first molding channel 211, a second molding channel 212, a third molding channel 213, a fourth molding channel 214, a fifth molding channel 215 and a main molding channel 22 are formed in the extrusion mold 2, cross sections of the first molding channel 211, the second molding channel 212, the third molding channel 213, the fourth molding channel 214 and the fifth molding channel 215 are arc structures, the first molding channel 211, the second molding channel 212, the third molding channel 213, the fourth molding channel 214 and the fifth molding channel 215 are sequentially arranged from inside to outside, feed ends of the first molding channel 211, the second molding channel 212, the third molding channel 213, the fourth molding channel 214 and the fifth molding channel 215 are respectively communicated with the feed inlet 231, and the first molding channel 211, the second molding channel 212, the third molding channel 213, the fourth molding channel 214 and the fifth molding channel 215 are respectively connected with the main molding channel 22, and the cross sections of the main molding channel 22 are formed by extrusion molding structures.

In this embodiment, the extrusion mechanism includes a base 11, a feed hopper 12, a feed motor 13, an extrusion screw 112, and a plurality of heat dissipation fans, an extrusion channel 111 is formed in the base 11, the extrusion channel 111 is rotationally connected with the extrusion screw 112, a feed inlet is opened at the front end of the extrusion channel 111, and the feed hopper 12 is connected with the feed inlet; the machine base 11 is provided with a plurality of heat dissipation fans 15, the heat dissipation fans 15 are located under the extrusion channel 111, the heat dissipation fans 15 are distributed at equal intervals along the extending direction of the extrusion channel 111, and the heat dissipation fans 15 are used for cooling the extrusion pipeline.

Specifically, the feeding motor 13 is connected with a feeding reduction gearbox 131, the feeding reduction gearbox 131 is connected with a driving wheel 132, the extrusion screw 112 is coaxially connected with a driven wheel 113, the driving wheel 132 is connected with the driven wheel 113 through a transmission belt 133, a spiral part is formed on the outer side wall of the extrusion screw 112, and the spiral part extends spirally along the length direction of the extrusion screw 112.

In this embodiment, a plurality of rollers are rotatably connected to the bottoms of the base 11 and the extrusion die 2, respectively, so as to realize the movable base 11 and the extrusion die 2.

In this embodiment, a screen changer 14 is disposed between the extrusion channel 111 and the feed inlet 231, a material transfer channel 141 and a filtering channel 142 are formed in the screen changer 14, the material transfer channel 141 is connected with the extrusion channel 111, the filtering channel 142 is connected with the feed inlet 231, a filter screen 143 is disposed between the material transfer channel 141 and the filtering channel 142, the filter screen 143 is in a cylindrical structure, a guide head 144 is formed in the filtering channel 142, and the guide head 144 is gradually narrowed along the conveying direction of the plastic melt to guide the plastic melt to convey, so as to prevent accumulation of materials.

In this embodiment, a feeding seat 23 and a distribution plate 24 are disposed in the extrusion die 2, a feeding port 231 is disposed in the feeding seat 23, the distribution plate 24 and the feeding seat 23 are disposed up and down, the distribution plate 24 is provided with a first feeding channel 241, a second feeding channel 242, a third feeding channel 243, a fourth feeding channel 244 and a fifth feeding channel 245, the feeding port 231 is respectively connected with the first feeding channel 241, the second feeding channel 242, the third feeding channel 243, the fourth feeding channel 244 and the fifth feeding channel 245, the first feeding channel 241 is connected with the first forming channel 211, the second feeding channel 242 is connected with the second forming channel 212, the third feeding channel 243 is connected with the third forming channel 213, the fourth feeding channel 244 is connected with the fourth forming channel 214, and the fifth feeding channel 245 is connected with the fifth forming channel 215.

In this embodiment, the extrusion die 2 is internally provided with a molding cavity 25, and a first molding disc 251, a second molding disc 252, a third molding disc 253 and a fourth molding disc 254 are disposed in the molding cavity 25, and cross sections of the first molding disc 251, the second molding disc 252, the third molding disc 253 and the fourth molding disc 254 are all arc structures, and the first molding disc 251, the second molding disc 252, the third molding disc 253 and the fourth molding disc 254 are sequentially disposed from inside to outside.

In this embodiment, the main shaping channel 22 narrows gradually in the extrusion direction.

In the present embodiment, the gap between the first molding plate 251 and the molding cavity 25 forms the first molding passage 211, the gap between the first molding plate 251 and the second molding plate 252 forms the second molding passage 212, the gap between the second molding plate 252 and the third molding plate 253 forms the third molding passage 213, the gap between the third molding plate 253 and the fourth molding plate 254 forms the fourth molding passage 214, and the gap between the fourth molding plate 254 and the molding cavity 25 forms the fifth molding passage 215.

In this embodiment, the discharge ends of the first molding channel 211, the third molding channel 213 and the fifth molding channel 215 are connected to the main molding channel 22, the discharge end of the second molding channel 212 is connected to the first molding channel 211, and the discharge end of the fourth molding channel 214 is connected to the fifth molding channel 215.

In this embodiment, the extrusion die 2 is provided with a guide block 26, and the guide block 26 is located at the discharge end of the main extrusion channel 111 for guiding film extrusion.

In this embodiment, the extrusion process is specifically: firstly pouring a plastic melt into a feeding hopper 12, enabling the material to enter an extrusion channel 111 through a feeding hole, synchronously starting a feeding motor 13, enabling the feeding motor 13 to drive a feeding reduction gearbox 131 to work, enabling the feeding reduction gearbox 131 to drive a driving wheel 132 to rotate, enabling the driving wheel 132 to drive a driven wheel 113 to rotate through a driving belt 133, and accordingly driving an extrusion screw 112 to rotate, and enabling the extrusion screw 112 to rotate so as to convey the plastic melt, wherein a heat dissipation fan 15 is correspondingly started according to the required temperature of the material, and the heat dissipation fan 15 blows air to the corresponding extrusion channel 111 for heat dissipation;

the plastic melt is extruded by the extrusion screw 112, filtered by the screen changer 14 and conveyed into the feed inlet 231 of the extrusion die 2, and then respectively enters the first feed channel 241, the second feed channel 242, the third feed channel 243, the fourth feed channel 244 and the fifth feed channel 245, wherein the first feed channel 241 conveys the plastic melt into the first forming channel 211 for forming, the second feed channel 242 conveys the plastic melt into the second forming channel 212 for forming, the third feed channel 243 conveys the plastic melt into the third forming channel 213 for forming, the fourth feed channel 244 conveys the material into the fourth forming channel 214 for forming, and the fifth feed channel 245 conveys the plastic melt into the fifth forming channel 215 for forming;

wherein the film extruded by the second molding channel 212 is firstly jointed with the film extruded by the first molding channel 211, the film extruded by the fourth molding channel 214 is firstly jointed with the film extruded by the fifth molding channel 215, then the film extruded by the first molding channel 211, the film extruded by the third molding channel 213 and the film extruded by the fifth molding channel 215 are mutually jointed and molded, and then the films enter the main molding channel 22 to be extruded, thus realizing the extrusion of the film with a five-layer structure.

The above-described embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the present utility model in any way. Any person skilled in the art can make many more possible variations and modifications of the technical solution of the present utility model or modify equivalent embodiments without departing from the scope of the technical solution of the present utility model by using the technical content disclosed above. Therefore, all equivalent changes according to the inventive concept are covered by the protection scope of the utility model without departing from the technical scheme of the utility model.

Claims (10)

1. An extrusion molding machine, includes extrusion mechanism, extrusion die (2), its characterized in that: the extrusion mechanism comprises an extrusion channel (111), a feed inlet (231) is formed on the outer side wall of the extrusion die (2), the extrusion channel (111) is connected with the feed inlet (231), a first forming channel (211), a second forming channel (212), a third forming channel (213), a fourth forming channel (214), a fifth forming channel (215) and a main forming channel (22) are formed in the extrusion die (2), the cross sections of the first forming channel (211), the second forming channel (212), the third forming channel (213), the fourth forming channel (214), the fifth forming channel (215) are arc-shaped, the first forming channel (211), the second forming channel (212), the third forming channel (213), the fourth forming channel (214) and the fifth forming channel (212) are sequentially arranged at intervals from inside to outside, the first forming channel (211), the second forming channel (212), the third forming channel (213), the fourth forming channel (214), the fifth forming channel (215) are respectively communicated with the feed inlet (213) and the second forming channel (22) of the fifth forming channel (215), the cross section of the main forming channel (22) forms an annular structure to realize the extrusion of the film with a cylindrical structure.

2. An extrusion machine as set forth in claim 1 wherein: the extrusion mechanism comprises a base (11), a feeding hopper (12), a feeding motor (13) and an extrusion screw (112), wherein the extrusion channel (111) is formed in the base (11), the extrusion channel (111) is rotationally connected with the extrusion screw (112), a feeding hole is formed in the front end of the extrusion channel (111), and the feeding hopper (12) is connected with the feeding hole.

3. An extrusion machine as claimed in claim 2, wherein: the feeding motor (13) is connected with a feeding reduction gearbox (131), the feeding reduction gearbox (131) is connected with a driving wheel (132), the extrusion screw (112) is coaxially connected with a driven wheel (113), the driving wheel (132) is connected with the driven wheel (113) through a transmission belt (133), a spiral part is formed on the outer side wall of the extrusion screw (112), and the spiral part spirally extends along the length direction of the extrusion screw (112).

4. An extrusion machine according to claim 3, wherein: be provided with a plurality of cooling fans (15) on frame (11), a plurality of cooling fans (15) are located under extruding channel (111), a plurality of cooling fans (15) are arranged along extruding channel (111) extending direction equidistant, cooling fans (15) are used for cooling down to extruding the pipeline.

5. An extrusion molding machine as set forth in claim 4 wherein: the novel extrusion device is characterized in that a screen changer (14) is arranged between the extrusion channel (111) and the feed inlet (231), a material transferring channel (141) and a filtering channel (142) are formed in the screen changer (14), the material transferring channel (141) is connected with the extrusion channel (111), the filtering channel (142) is connected with the feed inlet (231), a filter screen (143) is arranged between the material transferring channel (141) and the filtering channel (142), the filter screen (143) is of a cylindrical structure, and a guide head (144) is formed in the filtering channel (142).

6. An extrusion molding machine as set forth in claim 5 wherein: the extrusion die is characterized in that a feeding seat (23) and a distribution disc (24) are arranged in the extrusion die (2), a feeding inlet (231) is formed in the feeding seat (23), the distribution disc (24) and the feeding seat (23) are arranged up and down, a first feeding channel (241), a second feeding channel (242), a third feeding channel (243), a fourth feeding channel (244) and a fifth feeding channel (245) are formed in the distribution disc (24), the feeding inlet (231) is respectively connected with the first feeding channel (241), the second feeding channel (242), the third feeding channel (243), the fourth feeding channel (244) and the fifth feeding channel (245), the first feeding channel (241) is connected with the first forming channel (211), the second feeding channel (242) is connected with the second forming channel (212), the third feeding channel (243) is connected with the third forming channel (213), the fourth feeding channel (244) is connected with the fourth forming channel (214), and the fifth feeding channel (245) is connected with the fifth forming channel (215).

7. An extrusion molding machine as set forth in claim 6 wherein: the extrusion die is characterized in that a forming cavity (25) is formed in the extrusion die (2), a first forming disc (251), a second forming disc (252), a third forming disc (253) and a fourth forming disc (254) are arranged in the forming cavity (25), the cross sections of the first forming disc (251), the second forming disc (252), the third forming disc (253) and the fourth forming disc (254) are arc-shaped structures, and the first forming disc (251), the second forming disc (252), the third forming disc (253) and the fourth forming disc (254) are sequentially arranged from inside to outside.

8. An extrusion molding machine as set forth in claim 7 wherein: the gap between the first molding plate (251) and the molding cavity (25) forms the first molding channel (211), the gap between the first molding plate (251) and the second molding plate (252) forms the second molding channel (212), the gap between the second molding plate (252) and the third molding plate (253) forms the third molding channel (213), the gap between the third molding plate (253) and the fourth molding plate (254) forms the fourth molding channel (214), and the gap between the fourth molding plate (254) and the molding cavity (25) forms the fifth molding channel (215).

9. An extrusion machine as set forth in claim 8 wherein: the first forming channel (211), the third forming channel (213) and the discharge end of the fifth forming channel (215) are connected with the main forming channel (22) together, the discharge end of the second forming channel (212) is connected with the first forming channel (211), and the discharge end of the fourth forming channel (214) is connected with the fifth forming channel (215).

10. An extrusion machine as set forth in claim 9 wherein: the extrusion die (2) is provided with a guide block (26), and the guide block (26) is positioned at the discharge end of the main extrusion channel (111) and used for guiding film extrusion.

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