Mouth-shaped structure and composite extruder with same

Abstract

The utility model provides a mouth-shaped structure and a composite extruder with the mouth-shaped structure, the mouth-shaped structure comprises a base assembly and a pre-mouth-shaped assembly, a mixing channel and a wing glue flowing channel are arranged on the base assembly at intervals, the mixing channel extends along a first preset direction, and the mixing channel is used for enabling first composite glue to flow along the first preset direction; the wing glue flowing channel extends along a preset track and is used for enabling wing glue to flow along the preset track; the pre-die assembly is arranged on the base assembly, the pre-die assembly is provided with an output channel and a first wing glue channel, the output channel extends in the first preset direction, and the output channel communicates with the mixing channel; the first wing glue channel extends in the second preset direction and communicates with the wing glue flowing channel and the output channel. According to the die structure, the technical problem that time and labor are wasted due to the fact that a middle pre-die of a pre-die assembly in the prior art needs to be replaced according to treads of different models and shapes is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of extruder, concretely relates to a mouth structure and have its composite extruder. BACKGROUND

[0002] The tire crown, also known as the tread, is the component that directly contacts the ground. According to its performance, the tread must have excellent wear resistance, puncture resistance, high temperature resistance and heat dissipation performance. The production of the tire tread usually adopts multi-composite form for extrusion processing, and the tread is composed of wing rubber, tread rubber and base rubber. In the production process, three-composite, four-composite or five-composite extruders are usually used for composite extrusion.

[0003] Specifically, the finished rubber of the wing rubber, the tread rubber and the base rubber is respectively sent into each cylinder of the composite extruder. After being transported by the screw, the rubber is divided by the flow channel at the die head and finally enters the respective pre-die. At the tail of the pre-die, after the several rubbers are compounded, they are extruded through the final die to form a tread with the required properties and cross-sectional shape designed.

[0004] The pre-die assembly currently adopted includes a front base, a first base, an inner pre-die, a middle pre-die and a final die. Among them, the upper wing rubber enters the middle pre-die through the first base and then enters the front base; the tread rubber enters the first base through the inner pre-die, then enters the middle pre-die, and finally continues to enter the front base. In the front base, the wing rubber and the tread rubber are mixed. Therefore, a groove needs to be cut on the middle pre-die as a flow channel for the wing rubber and the tread rubber.

[0005] However, different types and shapes of treads need to be matched with different middle pre-dies, which leads to a large number of types of middle pre-dies. The turnover time of 3-5 minutes is needed for each replacement of the middle pre-die, which not only affects the production efficiency, but also increases the complexity of the operation, causing waste of manpower and material resources. In addition, the long residence time of the rubber in the die head may cause the self-flow phenomenon, that is, the rubber flows before being formed due to gravity or other factors, thereby affecting the forming effect. UTILITY MODEL CONTENTS

[0006] The utility model aims to overcome the above technical defects, provide a mouth structure and have its composite extruder, to solve the technical problem of the pre-die assembly in the prior art which needs to replace the middle pre-die according to different types and shapes of treads, resulting in time-consuming and laborious.

[0007] To achieve the above technical purposes, according to one aspect of the present application: a kind of mouth structure, comprising: base component and pre mouth component, base component is equipped with mixed channel and wing glue flow channel, mixed channel extends along first preset direction, mixed channel is used to make first compound glue flow along first preset direction;Wing glue flow channel extends along preset track, wing glue flow channel is used to make wing glue flow along preset track;Pre mouth component is arranged on base component;Pre mouth component is equipped with output channel and first wing glue channel, output channel extends along first preset direction, output channel is communicated with mixed channel;First wing glue channel extends along second preset direction, first wing glue channel is communicated with wing glue flow channel and output channel respectively, first wing glue channel is used to make wing glue flow along second preset direction;Output channel is used to compound wing glue and first compound glue to form second compound glue, and second compound glue is output.

[0008] Further, the base component is provided with a mounting cavity;The mouth structure further comprises: a first pre mouth, which is arranged in the mounting cavity, and a compound channel is arranged on the first pre mouth, the input end of the compound channel is communicated with the base rubber output end of the extruder and the tread rubber output end of the extruder respectively, the output end of the compound channel is communicated with the mixed channel, and the compound channel is used to compound the base rubber and the tread rubber to form the first compound glue, and the first compound glue is sent into the mixed channel.

[0009] Further, the base component includes: a first base, a first tread rubber channel, a second wing glue channel and a base rubber channel are arranged on the first base in intervals;The first tread rubber channel extends along the first preset direction, the second wing glue channel extends along the third preset direction, and the base rubber channel extends along the fourth preset direction;One end of the base rubber channel is communicated with the base rubber output end of the extruder, one end of the first tread rubber channel is communicated with the tread rubber output end of the extruder, and the other end of the base rubber channel and the other end of the first tread rubber channel are both communicated with the compound channel;The second wing glue channel is communicated with the wing glue output end of the extruder;Second base is connected with the first base, and the second base is located on the side of the first base away from the tread rubber output end of the extruder, and the second base is provided with mixed channel and third wing glue channel in intervals, the third wing glue channel extends along the fifth preset direction, and the third wing glue channel is communicated with the first wing glue channel and the second wing glue channel respectively;The second wing glue channel and the third wing glue channel form a wing glue flow channel;Wherein, the side of the first base close to the second base is provided with a first groove, the side of the second base close to the first base is provided with a second groove, the first groove and the second groove are oppositely arranged, and the first groove and the second groove form a mounting cavity.

[0010] Further, the mouth structure further comprises: a second pre-mold, disposed on the first base away from the second base, the second pre-mold is provided with a second tread rubber channel, the second tread rubber channel extends along the first preset direction, and two ends of the second tread rubber channel are in communication with the first tread rubber channel and the tread rubber output end of the extruder respectively.

[0011] Further, the pre-mold assembly comprises: a third pre-mold, disposed on the base assembly, and the third pre-mold is located on one side of the mixing channel, the third pre-mold is provided with a through hole and a third groove, the through hole extends along the first preset direction, and the through hole forms an output channel; the third groove extends along the second preset direction, the third groove is in communication with the through hole, and the third groove is located on the side of the third pre-mold close to the base assembly; a cover plate, disposed on the third pre-mold, and the cover plate is located on the third groove, the cover plate seals at least part of the third groove to form a first wing rubber channel; the first wing rubber channel has a first input port and a first output port, the first input port is in communication with the wing rubber flow channel, and the first output port is located on the inner wall of the through hole and is in communication with the through hole.

[0012] Further, the cover plate comprises: a cover plate body and a protrusion, the cover plate body is disposed on the third pre-mold, and the cover plate body seals at least part of the third groove; the cover plate body is connected with the protrusion, the protrusion is located on one side of the cover plate body, and the protrusion is located in the through hole; the protrusion is used for limiting the flow of the first compound rubber into the output channel.

[0013] Further, the third pre-mold comprises: a first mold plate and a second mold plate, the first mold plate and the second mold plate are connected, and the second mold plate is located above the first mold plate; a fourth groove is formed on the side of the first mold plate opposite to the second mold plate, and the fourth groove and the second mold plate form the through hole; wherein the third groove is located on the first mold plate, and the third groove is in communication with the fourth groove.

[0014] Further, the first pre-mold is provided with a second input port and a second output port, the second input port forms an input end of a compound channel, and the second output port forms an output end of the compound channel, the flow area of the second input port is larger than that of the second output port, so that the flow area of the compound channel gradually decreases in the direction from the second input port to the second output port.

[0015] Further, the second base is provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole are arranged at intervals; the mouth structure further comprises: a heating pipe and a thermal resistance, the heating pipe and the thermal resistance are respectively installed in the first mounting hole and the second mounting hole, the heating pipe is used for heating the second base; and the thermal resistance is used for detecting the heating temperature of the second base.

[0016] According to another aspect of the utility model: provide a kind of composite extruder, comprising: die structure, die structure is above described die structure.

[0017] Beneficial effects:

[0018] The technical scheme of the utility model provides the die structure, which includes a base assembly, a first pre-die and a pre-die assembly. The base assembly is provided with a mixing channel and a wing glue flow channel at intervals. The mixing channel extends along a first preset direction, and is used to make the first composite glue flow along the first preset direction. Meanwhile, the wing glue flow channel is used to make the wing glue flow along a preset trajectory. In addition, the pre-die assembly is arranged on the base assembly, and is located on one side of the output end of the mixing channel. The pre-die assembly is provided with an output channel extending along the first preset direction and a first wing glue channel extending along a second preset direction. The output channel is in communication with the mixing channel, and the first wing glue channel is in communication with the wing glue flow channel and the output channel, respectively. The first wing glue channel is used to make the wing glue flow along the second preset direction. The output channel is used to compound the wing glue and the first composite glue to form second composite glue, and output the second composite glue. As can be seen, by arranging the wing glue flow channel and the first wing glue channel in communication with each other on the base assembly and the pre-die assembly, this design effectively avoids opening a channel for wing glue flow on the middle pre-die, thereby significantly reducing the manufacturing and processing steps of the middle pre-die. This optimization not only reduces the manufacturing complexity, but also eliminates the need to replace the middle pre-die when changing the die structure according to different models and shapes of the tread. This design improves the speed of replacement, saves manpower and material resources, and reduces the residence time of the glue in the head. By reducing the residence time of the glue in the head, the risk of glue self-flowing can be effectively reduced, thereby improving the production speed and efficiency. In addition, the quality of the glue is also improved because the shorter residence time means that the glue is less affected by heat and oxidation during processing, thereby maintaining its performance and stability. At the same time, by directly flowing the wing glue into the output channel, the unstable phenomenon of the glue lap height caused by the wing glue meeting at the front base in the prior art can be effectively avoided. This structural design makes it easier to control the wing glue and the first composite glue when lapping, thereby further improving the quality of the final product. By optimizing the flow path of the glue, the uniformity and consistency of the glue when meeting are ensured, the defects caused by poor lapping are reduced, and the overall performance and reliability of the product are ensured. The die structure of the utility model effectively solves the technical problem of time-consuming and laborious replacement of the middle pre-die in the prior art pre-die assembly according to different models and shapes of the tread. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure schematic diagram of the embodiment of the die structure according to the utility model is shown.

[0020] Figure 2 A first perspective exploded schematic view of an embodiment of the mouth structure according to the present application is shown;

[0021] Figure 3 A second perspective exploded schematic view of an embodiment of the mouth structure according to the present application is shown;

[0022] Figure 4 A schematic view of a structure of a third pre-mould according to an embodiment of the mouth structure of the present application is shown;

[0023] Figure 5 A schematic view of a connection of the third pre-mould and the cover plate according to an embodiment of the mouth structure of the present application is shown;

[0024] Figure 6 A partial enlarged view of A of Figure 5 ;

[0025] Figure 7 A schematic view of a structure of an embodiment of the composite extruder according to the present application is shown.

[0026] Among them, the above drawings include the following reference signs:

[0027] 100, mouth structure; 1, base assembly; 10, wing rubber flow channel; 101, second wing rubber channel; 102, third wing rubber channel; 11, first base; 110, first tread rubber channel; 111, base rubber channel; 112, first groove; 113, first mounting slot; 12, second base; 120, mixing channel; 121, second groove; 122, first mounting hole; 123, second mounting hole; 124, third mounting slot; 2, first pre-mould; 20, composite channel; 21, second input port; 22, second output port; 3, pre-mould assembly; 30, output channel; 31, first wing rubber channel; 310, first input port; 311, first output port; 32, third pre-mould; 320, third groove; 321, first mould plate; 3210, fourth groove; 322, second mould plate; 323, second mounting slot; 33, cover plate; 331, cover plate body; 332, protruding block; 4, second pre-mould; 40, second tread rubber channel; 41, third input port; 42, third output port; 200, first flow passage piece; 201, first flow passage; 300, second flow passage piece; 301, second flow passage; 400, third flow passage piece; 401, third flow passage. DETAILED DESCRIPTION

[0028] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application, so that those skilled in the art can better understand the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should belong to the scope of protection of the present application.

[0029] Please refer to Figures 1 to 6 According to the embodiment of the present application, a mouth structure is provided, comprising: a base assembly 1 and a pre-mold assembly 3, a mixing channel 120 and a wing glue flow channel 10 are arranged on the base assembly 1 at intervals, the mixing channel 120 extends along a first preset direction, and the mixing channel 120 is used for flowing the first composite glue along the first preset direction; the wing glue flow channel 10 extends along a preset track, and the wing glue flow channel 10 is used for flowing the wing glue along the preset track; the pre-mold assembly 3 is arranged on the base assembly 1, the pre-mold assembly 3 is provided with an output channel 30 and a first wing glue channel 31, the output channel 30 extends along the first preset direction, and the output channel 30 is communicated with the mixing channel 120; the first wing glue channel 31 extends along a second preset direction, the first wing glue channel 31 is respectively communicated with the wing glue flow channel 10 and the output channel 30, and the first wing glue channel 31 is used for flowing the wing glue along the second preset direction; the output channel 30 is used for compounding the wing glue and the first composite glue to form a second composite glue, and outputting the second composite glue.

[0030] It can be seen that the mouth structure provided by the utility model, including base assembly 1, first pre mouth 2 and pre mouth assembly 3, wherein, base assembly 1 is provided with mixing channel 120 and wing glue flow channel 10 at intervals, mixing channel 120 extends along the first preset direction, and mixing channel 120 is used for flowing the first compound glue along the first preset direction, at the same time, wing glue flow channel 10 is used for flowing the wing glue along the preset track, in addition, pre mouth assembly 3 is arranged on base assembly 1, and pre mouth assembly 3 is located at the output end of mixing channel 120, and pre mouth assembly 3 is provided with output channel 30 extending along the first preset direction and first wing glue channel 31 extending along the second preset direction, wherein, output channel 30 is communicated with mixing channel 120, and first wing glue channel 31 is communicated with wing glue flow channel 10 and output channel 30 respectively, and first wing glue channel 31 is used for flowing the wing glue along the second preset direction, and output channel 30 is used for compounding the wing glue and the first compound glue to form the second compound glue and outputting the second compound glue, thus, by being provided with wing glue flow channel 10 and first wing glue channel 31 communicated with each other on base assembly 1 and pre mouth assembly 3 respectively, this design effectively avoids opening the channel for the wing glue flow on the middle pre mouth, thereby significantly reducing the manufacturing and processing steps of the middle pre mouth, this optimization not only reduces the manufacturing complexity, but also makes it unnecessary to replace the middle pre mouth separately when replacing the mouth structure 100 according to different models and shapes of the tread, this design improves the replacement speed, saves manpower and material resources, and reduces the residence time of the glue in the head, by reducing the residence time of the glue in the head, the risk of self-flowing glue of the glue can be effectively reduced, thereby improving the production speed and production efficiency, in addition, the quality of the glue is also improved, because the shorter residence time means that the glue is less affected by heat and oxidation during the processing process, thereby maintaining its performance and stability, at the same time, flowing the wing glue directly into the output channel 30 can effectively avoid the unstable phenomenon of the glue lap height caused by the wing glue meeting the front base in the prior art, this structure design makes it easier to control the wing glue and the first compound glue when lapping, thereby further improving the quality of the final product, by optimizing the flow path of the glue, the uniformity and consistency of the glue when meeting are ensured, the defects caused by poor lapping are reduced, and the overall performance and reliability of the product are ensured, the mouth structure of the utility model effectively solves the technical problems that the middle pre mouth needs to be replaced according to different models and shapes of the tread in the pre mouth assembly in the prior art, which is time-consuming and laborious.

[0031] Specifically, as Figure 2 and Figure 3As shown, the base assembly 1 is provided with a mounting cavity; the mouth structure 100 further comprises: a first pre-mold 2, the first pre-mold 2 is arranged in the mounting cavity, the first pre-mold 2 is provided with a composite channel 20, the input end of the composite channel 20 is respectively communicated with the base rubber output end of the extruder and the tread rubber output end of the extruder, the output end of the composite channel 20 is communicated with the mixing channel 120, the composite channel 20 is used for compounding the base rubber and the tread rubber to form the first composite rubber, and the first composite rubber is flowed into the mixing channel 120. By adopting such structure, the composite channel 20 is arranged on the first pre-mold 2, so that the base rubber and the tread rubber are compounded to form the first composite rubber. Moreover, only the composite channel 20 is arranged on the first pre-mold 2, which can significantly reduce the manufacturing and processing steps of the first pre-mold 2. This optimization not only reduces the manufacturing complexity, but also makes it unnecessary to replace the first pre-mold 2 when the mouth structure 100 is replaced according to different models and shapes of the tread. This design improves the replacement speed, saves manpower and material resources, and reduces the residence time of the rubber in the head.

[0032] Specifically, as Figure 2 and Figure 3As shown, the base assembly 1 comprises: a first base 11 and a second base 12, the first base 11 is provided with a first tread rubber passage 110, a second wing rubber passage 101 and a base rubber passage 111 at intervals; the first tread rubber passage 110 extends along a first preset direction, the second wing rubber passage 101 extends along a third preset direction, and the base rubber passage 111 extends along a fourth preset direction; one end of the base rubber passage 111 is in communication with a base rubber output end of the extruder, one end of the first tread rubber passage 110 is in communication with a tread rubber output end of the extruder, and the other end of the base rubber passage 111 and the other end of the first tread rubber passage 110 are both in communication with the composite passage 20; the second wing rubber passage 101 is in communication with a wing rubber output end of the extruder; the second base 12 is connected with the first base 11, and the second base 12 is located on a side of the first base 11 away from the tread rubber output end of the extruder, the second base 12 is provided with a mixing passage 120 and a third wing rubber passage 102 at intervals, the third wing rubber passage 102 extends along a fifth preset direction, and the third wing rubber passage 102 is in communication with the first wing rubber passage 31 and the second wing rubber passage 101 respectively; the second wing rubber passage 101 and the third wing rubber passage 102 form a wing rubber flow passage 10; wherein, a first groove 112 is arranged on a side of the first base 11 close to the second base 12, a second groove 121 is arranged on a side of the second base 12 close to the first base 11, the first groove 112 and the second groove 121 are oppositely arranged, and the first groove 112 and the second groove 121 form a mounting cavity. By arranging the second wing rubber passage 101 and the third wing rubber passage 102 on the first base 11 and the second base 12 respectively, the wing rubber flows directly through the first base 11 and the second base 12 to the output passage 30 of the pre-die assembly 3, thereby improving the flow speed of each rubber material, reducing the residence time of the rubber material in the head, and improving the production efficiency and speed.

[0033] Further, the first tread rubber passage 110, the second wing rubber passage 101 and the base rubber passage 111 are arranged at intervals along the height direction of the first base 11 (as shown by the direction of arrow B), and the first tread rubber passage 110 is located between the second wing rubber passage 101 and the base rubber passage 111. The mixing passage 120 and the third wing rubber passage 102 are arranged at intervals along the height direction of the second base 12, and the input port of the third wing rubber passage 102 is oppositely arranged with the output port of the second wing rubber passage 101. Figure 1

[0034] Optionally, the extension direction of the second wing rubber passage 101 and the extension direction of the third wing rubber passage 102 form a preset track.

[0035] Specifically, as shown in Figure 2 and Figure 3 ​As shown, the mouth structure 100 further comprises a second pre-mold 4, which is arranged on the side of the first base 11 away from the second base 12, and is provided with a second tread rubber passage 40 extending in the first preset direction, and the two ends of the second tread rubber passage 40 are in communication with the first tread rubber passage 110 and the tread rubber output end of the extruder, respectively. Among them, the first tread rubber passage 110 is in communication with the tread rubber output end of the extruder through the second tread rubber passage 40.

[0036] Further, the side of the first base 11 away from the second base 12 is provided with a first mounting groove 113, and the second pre-mold 4 is mounted in the first mounting groove 113. The second pre-mold 4 has a third input port 41 and a third output port 42, both of which are in communication with the second tread rubber passage 40, and the second tread rubber passage 40 is in communication with the tread rubber output end of the extruder through the third input port 41; the second tread rubber passage 40 is in communication with the first tread rubber passage 110 through the third output port 42. The cross section of the second tread rubber passage 40 is a first rectangle, and the flow area of the third input port 41 is greater than that of the third output port 42, so that each inner wall of the second tread rubber passage 40 is inclined downward in the direction from the third input port 41 to the third output port 42 (i.e. each inner wall of the second tread rubber passage 40 is inclined downward in the first preset direction); so that the flow area of the second tread rubber passage 40 gradually decreases in the direction from the third input port 41 to the third output port 42.

[0037] Optionally, the tread rubber output end of the extruder has a first output port and a second output port, both of which are used for the outflow of the tread rubber, and both of which are in communication with the second tread rubber passage 40. The flow area of the second tread rubber passage 40 is designed to gradually decrease in the direction from the third input port 41 to the third output port 42, which aims to combine the tread rubber output by the first output port and the second output port, so as to realize more uniform distribution of the tread rubber when output, and ensure that the tread rubber does not appear uneven during the molding process.

[0038] Specifically, as Figures 2 to 6As shown, the pre-die assembly 3 comprises a third pre-die 32 and a cover plate 33. The third pre-die 32 is arranged on the base assembly 1 and is located at one side of the mixing channel 120. The third pre-die 32 is provided with a through hole and a third recess 320. The through hole extends along a first preset direction and forms the output channel 30. The third recess 320 extends along a second preset direction and is in communication with the through hole and is located on the side of the third pre-die 32 close to the base assembly 1. The cover plate 33 is arranged on the third pre-die 32 and is located on the third recess 320. The cover plate 33 blocks at least part of the third recess 320 to form the first wing rubber channel 31. The first wing rubber channel 31 has a first input port 310 and a first output port 311. The first input port 310 is in communication with the wing rubber flow channel 10. The first output port 311 is located on the inner wall of the through hole and is in communication with the through hole.

[0039] Further, the flow area of the first output port 311 is smaller than the flow area of the first output port 311. The first output port 311 is close to the input end of the output channel 30.

[0040] Optionally, the flow area of the first output port 311 is set according to the shape and specifications of different tire surfaces to facilitate control of the amount of wing rubber flow.

[0041] Specifically, as shown in Figure 5 and Figure 6 The cover plate 33 comprises a cover plate body 331 and a protrusion 332. The cover plate body 331 is arranged on the third pre-die 32 and blocks at least part of the third recess 320. The cover plate body 331 is connected with the protrusion 332. The protrusion 332 is located on one side of the cover plate body 331 and is located in the through hole. The protrusion 332 is used to limit the flow of the first compound rubber into the output channel 30. The protrusion 332 is located on the input end of the output channel 30 and protrudes from the third recess 320, thereby shielding at least part of the input end of the output channel 30 and limiting the flow of the first compound rubber into the output channel 30. The thickness of the protrusion 332 is smaller than the length of the output channel 30. By arranging the protrusion 332, the flow resistance of the first compound rubber can be increased, thereby reducing the flow. This design can be used to adjust and control the conveying speed and pressure of the rubber compound, so as to compound the first compound rubber and the wing rubber. At the same time, the position and shape design of the protrusion 332 also reduces the possible surge phenomenon, so that the rubber compound is more stable when entering the output channel.

[0042] Optionally, the area of the protrusion 332 can be changed according to the shape and specification of the different tread, so as to adjust the flow of the first compound into the output channel 30, and the shape of the protrusion 332 can also be changed. By changing the area and shape of the protrusion 332, the proportion of the second compound on the wing rubber and the shape of the output wing rubber can be adjusted.

[0043] Optionally, the first compound refers to the compound after the base rubber and the tread rubber are compounded. The second compound refers to the compound after the base rubber, the tread rubber and the wing rubber are compounded.

[0044] Further, as shown in Figures 4 to 6 , the third pre-die 32 comprises a first die plate 321 and a second die plate 322, the first die plate 321 and the second die plate 322 are connected, and the second die plate 322 is located above the first die plate 321; a fourth recess 3210 is formed on the side opposite to the second die plate 322 of the first die plate 321, and the fourth recess 3210 and the second die plate 322 form a through hole; wherein the third recess 320 is located on the first die plate 321, and the third recess 320 and the fourth recess 3210 are in communication.

[0045] Further, as shown in Figure 4 , the first die plate 321 is provided with a second mounting groove 323, and the cover plate 33 is mounted in the second mounting groove 323; the second mounting groove 323 and the third recess 320 are in communication, and the second mounting groove 323 and the third recess 320 are arranged in a stepped manner; the second mounting groove 323 is located above the third recess 320. The cover plate 33 is mounted in the second mounting groove 323 by the fixing member. Wherein, the cover plate 33 and the first die plate 321 are connected by screws.

[0046] Optionally, the fixing member is a screw.

[0047] Optionally, the extension direction of the third recess 320 and the extension direction of the through hole form a preset angle, the preset angle is greater than 0° and less than or equal to 90°. Preferably, the preset angle is 90°.

[0048] Further, the second base 12 is provided with a third mounting groove 124 on the side away from the first base 11, and the third pre-die 32 is mounted in the third mounting groove 124.

[0049] Specifically, as shown in Figure 2 and Figure 3As shown, the first pre-die 2 is provided with a second input port 21 and a second output port 22, the second input port 21 forms an input end of the composite channel 20, and the second output port 22 forms an output end of the composite channel 20, the flow area of the second input port 21 is greater than that of the second output port 22, so that the flow area of the composite channel 20 gradually decreases in the direction from the second input port 21 to the second output port 22. By designing the flow area of the composite channel 20 to gradually decrease in the direction from the second input port 21 to the second output port 22, the flow speed of the base rubber and the tread rubber can be increased, which helps to improve the compounding efficiency of the base rubber and the tread rubber, so that the first compounded rubber is more evenly distributed when output, and ensures that the first compounded rubber does not appear uneven during the molding process.

[0050] Optionally, the cross section of the composite channel 20 is a second rectangle, and the side wall of the composite channel 20 close to the base rubber channel is inclined downward in the direction from the second input port 21 to the second output port 22. In order to guide the base rubber flowing out of the base rubber channel to smoothly enter the composite channel 20, and to make the base rubber and the tread rubber compound uniformly.

[0051] Specifically, as shown in Figure 1 and Figure 2 , the second base 12 is provided with a first mounting hole 122 and a second mounting hole 123, and the first mounting hole 122 and the second mounting hole 123 are arranged at intervals; the die structure further comprises: a heating pipe and a thermal resistance, the heating pipe and the thermal resistance are respectively installed in the first mounting hole 122 and the second mounting hole 123, the heating pipe is used for heating the second base 12; and the thermal resistance is used for detecting the heating temperature of the second base 12. By setting the heating pipe and the thermal resistance, the heating and temperature monitoring of the second base 12 can be effectively realized, so as to prevent the edge breaking phenomenon during extrusion.

[0052] Further, the first mounting hole 122 and the second mounting hole 123 are located on the side of the second base 12 which is not provided with the second input port 21 and the second output port 22.

[0053] Optionally, the extension direction of the first mounting hole 122 and the second mounting hole 123 is perpendicular to the extension direction of the composite channel 20.

[0054] Further, the second wing rubber channel 101, the third wing rubber channel 102, the third groove 320 and the cover plate 33 are all 2, the two second wing rubber channels 101 are arranged at intervals along the width direction of the first base 11 (as shown by the direction of arrow C in Figure 1 ), and the two third wing rubber channels 102 are arranged at intervals along the width direction of the second base 12 (as shown by the direction of arrow D in Figure 1The two third grooves 320 are spaced apart in the direction indicated by the middle arrow C; the two third grooves 320 are arranged along the width direction of the third pre-groove 32 (e.g., ...). Figure 1 (In the direction indicated by the middle arrow C) are spaced apart; two second wing adhesive channels 101, two third wing adhesive channels 102, two third grooves 320 and two cover plates 33 are set one-to-one (that is, two second wing adhesive channels 101, two third wing adhesive channels 102 and two first wing adhesive channels 31 are set one-to-one).

[0055] like Figure 7 As shown, the present invention provides a composite extruder, including: a die structure 100, wherein the die structure 100 is the die structure 100 of the above embodiment.

[0056] Specifically, such as Figure 7 As shown, the die structure 100 has a composite channel 20 and a wing rubber flow channel 10; the composite extruder includes: a first flow channel component 200, a second flow channel component 300, and a third flow channel component 400, both the first flow channel component 200 and the second flow channel component 300 being connected to the die structure 100; the first flow channel component 200 is provided with a first flow channel 201 for the flow of tread rubber; the second flow channel component 300 is provided with a second flow channel 301 for the flow of base rubber, the output ends of the first flow channel 201 and the output ends of the second flow channel 301 being connected to the composite channel 20; the third flow channel component 400 is connected to the die structure 100; the third flow channel component 400 is provided with a third flow channel 401 for the flow of wing rubber, the output end of the third flow channel 401 being connected to the wing rubber flow channel 10.

[0057] Optionally, the output end of the first flow channel 201 is used to form the tread rubber output end of the extruded rubber; the output end of the second flow channel 301 is used to form the base rubber output end of the extruder; and the output end of the third flow channel 401 is used to form the wing rubber output end of the extruder.

[0058] Optionally, there are two first-order components 200.

[0059] Optionally, the process of compounding rubber in the compound extruder is as follows:

[0060] Step 1: The tread rubber flowing out from the two first flow channels 200 is combined through the second tread rubber channel 40 on the second pre-drill 4 and then flows into the first tread rubber channel 110 on the first base 11. Then, it flows from the first tread rubber channel 110 into the compounding channel 20 on the first pre-drill 2.

[0061] Meanwhile, the base rubber flowing out of the second runner 300 flows into the compound channel 20 on the first pre-die 2 through the base rubber channel 111 on the first base 11. Then, the tread rubber and the base rubber flowing into the compound channel 20 are compounded to form the first compound rubber, and the first compound rubber flows through the second output port 22 and the mixing channel 120 on the second base 12 towards the output channel 30 on the third pre-die 32.

[0062] Step 2, while the tread rubber and the base rubber are flowing, the wing rubber flowing out of the third runner 400 flows into the second wing rubber channel 101 on the first base 11, and then flows into the third wing rubber channel 102 on the second base 12, and the wing rubber flowing out of the third wing rubber channel 102 flows into the first wing rubber channel 31 on the third pre-die 32 through the first input port 310, and then flows to the output channel 30 through the first output port 311.

[0063] Step 3, the first compound rubber and the wing rubber flowing into the output channel 30 are compounded at the input end of the output channel 30 to form the second compound rubber, and then the second compound rubber flows out of the output end of the output channel 30.

[0064] It is to be noted that the terms "first", "second", and the like in the description and claims of the application and the above drawings are used to distinguish between similar objects, and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprise", "comprising", "include", "including", and the like are intended to cover non-exclusive inclusions, such that processes, methods, systems, products, or devices that comprise, include, or the like a list of steps or elements are not necessarily limited to those steps or elements specifically listed, but can include additional steps or elements not expressly listed or inherent to such processes, methods, products, or devices.

[0065] Optionally, the specific examples in the embodiments can refer to the examples described in the above embodiments, and the embodiments will not be described here.

[0066] The serial numbers of the above embodiments of the application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0067] In the above embodiments of the application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0068] The above is only the preferred embodiment of the application, and it should be pointed out that for ordinary skilled in the art, without departing from the principle of the application, a number of improvements and refinements can be made, which should be considered as the protection scope of the application.

Claims

1. A mouthpiece structure, characterized by, The utility model relates to a kind of compound rubber mixing machine, including: Base assembly (1), which is provided with a mixing channel (120) and a wing rubber flow channel (10) at intervals, the mixing channel (120) extends along a first preset direction, and the mixing channel (120) is used for flowing first compound rubber along the first preset direction;The wing rubber flow channel (10) extends along a preset trajectory, and the wing rubber flow channel (10) is used for flowing wing rubber along the preset trajectory; Pre-die assembly (3) is arranged on the base assembly (1);The pre-die assembly (3) is provided with an output channel (30) and a first wing rubber channel (31), the output channel (30) extends along the first preset direction, and the output channel (30) is communicated with the mixing channel (120);The first wing rubber channel (31) extends along a second preset direction, and the first wing rubber channel (31) is communicated with the wing rubber flow channel (10) and the output channel (30) respectively, and the first wing rubber channel (31) is used for flowing the wing rubber along the second preset direction;The output channel (30) is used for compounding the wing rubber and the first compound rubber to form second compound rubber, and outputting the second compound rubber.

2. The mouthpiece structure of claim 1, wherein The base assembly (1) is provided with a mounting cavity;The die structure (100) further includes: A first pre-die (2) is arranged in the mounting cavity, and the first pre-die (2) is provided with a compound channel (20), the input end of the compound channel (20) is communicated with the base rubber output end of the extruder and the tread rubber output end of the extruder respectively, the output end of the compound channel (20) is communicated with the mixing channel (120), and the compound channel (20) is used for compounding the base rubber and the tread rubber to form the first compound rubber, and the first compound rubber is sent into the mixing channel (120).

3. The mouthpiece structure of claim 2, wherein The base assembly (1) includes: A first base (11) is provided with a first tread rubber channel (110), a second wing rubber channel (101) and a base rubber channel (111) at intervals;The first tread rubber channel (110) extends along a first preset direction, the second wing rubber channel (101) extends along a third preset direction, and the base rubber channel (111) extends along a fourth preset direction;One end of the base rubber channel (111) is communicated with the base rubber output end of the extruder, one end of the first tread rubber channel (110) is communicated with the tread rubber output end of the extruder, and the other end of the base rubber channel (111) and the other end of the first tread rubber channel (110) are both communicated with the compound channel (20);The second wing rubber channel (101) is communicated with the wing rubber output end of the extruder; A second base (12) is connected with the first base (11), and the second base (12) is located on the side of the first base (11) away from the tire rubber output end of the extruder. The second base (12) is provided with the mixing channel (120) and a third wing rubber channel (102) at intervals. The third wing rubber channel (102) extends along a fifth preset direction, and the third wing rubber channel (102) is respectively communicated with the first wing rubber channel (31) and the second wing rubber channel (101). The second wing rubber channel (101) and the third wing rubber channel (102) form the wing rubber flow channel (10). The first base (11) is provided with a first groove (112) on the side close to the second base (12), and the second base (12) is provided with a second groove (121) on the side close to the first base (11). The first groove (112) and the second groove (121) are oppositely arranged, and the first groove (112) and the second groove (121) form the mounting cavity.

4. The mouthpiece structure of claim 3, wherein The mouth structure (100) further comprises a second pre-mold (4) arranged on the side of the first base (11) away from the second base (12). The second pre-mold (4) is provided with a second tire rubber channel (40) extending along the first preset direction. The two ends of the second tire rubber channel (40) are respectively communicated with the first tire rubber channel (110) and the tire rubber output end of the extruder.

5. The die structure of claim 1 wherein, The pre-mold assembly (3) comprises: A third pre-mold (32) is arranged on the base assembly (1), and the third pre-mold (32) is located on one side of the mixing channel (120). The third pre-mold (32) is provided with a through hole and a third groove (320). The through hole extends along the first preset direction, and the through hole forms the output channel (30). The third groove (320) extends along the second preset direction, and the third groove (320) is communicated with the through hole and located on the side of the third pre-mold (32) close to the base assembly (1); A cover plate (33) is arranged on the third pre-mold (32), and the cover plate (33) is located on the third groove (320). The cover plate (33) seals at least part of the third groove (320) to form the first wing rubber channel (31). The first wing rubber channel (31) has a first input port (310) and a first output port (311). The first input port (310) is communicated with the wing rubber flow channel (10), and the first output port (311) is located on the inner wall of the through hole and communicated with the through hole.

6. The die structure of claim 5, wherein The cover plate (33) comprises a cover plate body (331) and a protrusion (332), the cover plate body (331) is arranged on the third pre-orifice (32), and the cover plate body (331) blocks at least part of the third groove (320); the cover plate body (331) is connected with the protrusion (332), the protrusion (332) is located on one side of the cover plate body (331), and the protrusion (332) is located in the through hole; the protrusion (332) is used for limiting the flow of the first composite adhesive into the output channel (30).

7. The die structure of claim 5 wherein, The third pre-orifice (32) comprises a first orifice plate (321) and a second orifice plate (322), the first orifice plate (321) and the second orifice plate (322) are connected, and the second orifice plate (322) is located above the first orifice plate (321); a fourth groove (3210) is arranged on the side opposite to the second orifice plate (322) of the first orifice plate (321), and the fourth groove (3210) and the second orifice plate (322) surround the through hole; The third groove (320) is located on the first orifice plate (321), and the third groove (320) communicates with the fourth groove (3210).

8. The die structure of claim 2, wherein The first pre-orifice (2) is provided with a second input port (21) and a second output port (22), the second input port (21) forms an input end of the composite channel (20), the second output port (22) forms an output end of the composite channel (20), and the flow area of the second input port (21) is greater than that of the second output port (22), so that the flow area of the composite channel (20) gradually decreases in the direction from the second input port (21) to the second output port (22).

9. The die structure of claim 3 wherein, The second base (12) is provided with a first mounting hole (122) and a second mounting hole (123), the first mounting hole (122) and the second mounting hole (123) are arranged at intervals; the orifice structure further comprises a heating pipe and a thermal resistance, the heating pipe and the thermal resistance are respectively installed in the first mounting hole (122) and the second mounting hole (123), the heating pipe is used for heating the second base (12); and the thermal resistance is used for detecting the heating temperature of the second base (12).

10. A compound extruder, characterized by, Comprise: The orifice structure (100) is the orifice structure (100) of any one of claims 1 to 9.

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