Composite extruder head

Abstract

The utility model provides a composite extruding machine head which comprises a plurality of die bodies, the die bodies are connected in a butt joint mode, a plurality of feeding flow channels for rubber materials to pass through are formed, and all the feeding flow channels comprise a first flow channel, a second flow channel, a third flow channel and a fourth flow channel. Each feeding runner comprises an inlet section, a middle section and an outlet section which are sequentially communicated in the rubber material flowing direction, and an included angle is formed between the center line of the inlet section and the center line of the middle section; the included angle between the center line of the inlet section of the first flow channel and the horizontal line is 22-35 degrees; the included angle between the center line of the inlet section of the second flow channel and the horizontal line is 0-20 degrees; the included angle between the center line of the inlet section of the third runner and the horizontal line is 2.5-12.5 degrees; and the included angle between the central line of the inlet section of the fourth runner and the horizontal line is 15-35 degrees. The problems that the head rear side space is small, overhaul and maintenance are inconvenient, and assembly and installation are difficult are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to extruder technical field, specifically, relate to a kind of composite extruder head. BACKGROUND

[0002] Composite extruder is widely used in the production and manufacture of tire tread, sidewall, pad rubber, triangular rubber and other rubber semi-components.According to the structure requirements of semi-component products, it needs to be matched with two composite, three composite, four composite and more layers of composite head by composite extruder.The multiple extruders of different sizes are connected with the composite head, stacked in sequence and arranged at a certain angle.The existing head has the problems of small space at the rear side of the head, inconvenient maintenance and difficult assembly and installation. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of composite extruder head, to solve the problem of small space at the rear side of the head in the prior art, inconvenient maintenance and difficult assembly and installation.

[0004] In order to achieve the above purpose, according to one aspect of the utility model, a composite extruder head is provided, which includes a plurality of die bodies, the die bodies are connected in abutment and form a plurality of feed flow channels for the rubber material, all the feed flow channels include a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, each feed flow channel includes an inlet section, an intermediate section and an outlet section connected in sequence along the flow direction of the rubber material, and the center line of the inlet section forms an angle with the center line of the intermediate section; wherein the angle between the center line of the inlet section of the first flow channel and the horizontal line is 22-35 degrees; the angle between the center line of the inlet section of the second flow channel and the horizontal line is 0-20 degrees; the angle between the center line of the inlet section of the third flow channel and the horizontal line is 2.5-12.5 degrees; the angle between the center line of the inlet section of the fourth flow channel and the horizontal line is 15-35 degrees.

[0005] Further, the composite extruder head further includes a plurality of flow channel plates, each feed flow channel is provided with a flow channel plate in the outlet section, and the flow channel plate has a bonding surface bonded with the surface of the outlet section, wherein the angle between the bonding surface of the flow channel plate in the first flow channel and the horizontal line is 30-58 degrees; the angle between the bonding surface of the flow channel plate in the second flow channel and the horizontal line is 2.5-28 degrees; the angle between the bonding surface of the flow channel plate in the third flow channel and the horizontal line is 0-30 degrees; the angle between the bonding surface of the flow channel plate in the fourth flow channel and the horizontal line is 32-58 degrees.

[0006] Further, each feed flow channel is arranged in sequence from top to bottom, and the upper surface of the flow channel plate is bonded with the upper surface of the outlet section to form a bonding surface.

[0007] Further, the composite extruder head further comprises a plurality of bushings, the plurality of bushings are respectively arranged in different inlet sections, outer walls of the bushings are attached to inner walls of the inlet sections, the bushings have hollow structures, and center lines of the hollow structures coincide with center lines of the inlet sections.

[0008] Further, in an axial direction of the bushing, a portion of the bushing extends into the inlet section in a direction close to the middle section, and the extended length is 2-10 mm; and / or the bushing is detachably connected to the die body.

[0009] Further, the axial length of the inlet section is 150-280 mm.

[0010] Further, all the die bodies comprise: a middle die body, the middle die body has a first side and a second side arranged transversely, the first side has a protruding portion extending transversely; an upper die body, the upper die body is located above the protruding portion and is arranged movably relative to the middle die body, and the rotation radius of the upper die body is 800-950 mm; and a lower die body, the lower die body is located below the protruding portion and is arranged movably relative to the middle die body, and the rotation radius of the lower die body is 820-970 mm.

[0011] Further, all the die bodies comprise: a middle die body, the middle die body has a first side and a second side arranged transversely, the first side has a protruding portion extending transversely; an upper die body, the upper die body is located above the protruding portion and is arranged movably relative to the middle die body; and a lower die body, the lower die body is located below the protruding portion and is arranged movably relative to the middle die body; the composite extruder head further comprises a movable locking mechanism, the upper side of the upper die body and the lower side of the lower die body are provided with locking surfaces, and the locking surfaces are inclined away from each other in a moving direction of the locking mechanism close to the locking surfaces, and the protruding portion is close to and abuts against the locking surfaces to drive the upper die body and the lower die body to be close to and locked on the middle die body.

[0012] Further, the second side of the middle die body is provided with at least one locking surface.

[0013] Further, the locking mechanism comprises a plurality of extending arms, the extending arms extend to the upper side of the upper die body, the lower side of the lower die body and the second side of the middle die body respectively, end portions of the extending arms are provided with locking sections bent, and the locking sections are provided with inclined surfaces matched with the locking surfaces.

[0014] Further, the locking mechanism is two, and the locking mechanism is arranged on the two sides of the middle die body transversely, the upper side of the upper die body, the lower side of the lower die body and the second side of the middle die body are provided with a plurality of locking surfaces, and the locking mechanism on the two sides transversely is matched with the locking surfaces on the two sides transversely respectively.

[0015] The technical scheme of the utility model realizes the following technical effects:

[0016] The angle between the flow channel of the composite extruder head and the horizontal plane is limited. When the angle is too large, the upper and lower spaces of the extruder behind the head are large, and when the angle is too small, the installation and arrangement of multiple extruders cannot be achieved or the situation is too compact, affecting operation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated herein by reference. The illustrations are shown schematically and are used to explain the application, and are not intended to limit the application. In the drawings:

[0018] Fig. 1 A front view of the extruder head is shown.

[0019] Fig. 2 A side view of the extruder head is shown.

[0020] Fig. 3 A cross-sectional view of the extruder head is shown.

[0021] Among them, the above drawings include the following reference signs:

[0022] 10, die body; 11, intermediate die body; 111, first side; 112, second side; 12, upper die body; 13, lower die body; 20, feed flow channel; 21, inlet section; 22, middle section; 23, outlet section; 30, flow channel plate; 40, bushing; 50, locking mechanism; 51, extension arm; 52, locking section; 53, locking surface. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0025] In the present application, unless otherwise stated, the orientation words such as "up, down, top, bottom" are generally directed to the direction shown in the drawings, or are directed to the vertical, perpendicular or gravity direction of the components themselves. Similarly, for the convenience of understanding and description, "inner, outer" refers to the inner and outer contours of the components themselves, but the above orientation words are not used to limit the present application.

[0026] In order to solve the problem of small space behind the head, inconvenient maintenance and difficult assembly and installation in the prior art. The main purpose of the present application is to provide a composite extruder head.

[0027] Referring to Figs. 1-3 The composite extruder head comprises a plurality of die bodies 10, the die bodies 10 are connected in abutment and form a plurality of feeding flow channels 20 for the rubber material to pass through, all the feeding flow channels 20 comprise a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, each feeding flow channel 20 comprises an inlet section 21, an intermediate section 22 and an outlet section 23 which are sequentially connected in communication along the flow direction of the rubber material, and an included angle is formed between the center line of the inlet section 21 and the center line of the intermediate section 22; wherein the included angle between the center line of the inlet section 21 of the first flow channel and the horizontal line is 22-35 degrees; the included angle between the center line of the inlet section 21 of the second flow channel and the horizontal line is 0-20 degrees; the included angle between the center line of the inlet section 21 of the third flow channel and the horizontal line is 2.5-12.5 degrees; and the included angle between the center line of the inlet section 21 of the fourth flow channel and the horizontal line is 15-35 degrees.

[0028] The composite extruder head further comprises a plurality of flow channel plates 30, each feeding flow channel 20 is provided with a flow channel plate 30 in the outlet section 23, and the flow channel plate 30 has a bonding surface which is bonded to the surface of the outlet section 23, wherein the included angle between the bonding surface of the flow channel plate 30 in the first flow channel and the horizontal line is 30-58 degrees; the included angle between the bonding surface of the flow channel plate 30 in the second flow channel and the horizontal line is 2.5-28 degrees; the included angle between the bonding surface of the flow channel plate 30 in the third flow channel and the horizontal line is 0-30 degrees; and the included angle between the bonding surface of the flow channel plate 30 in the fourth flow channel and the horizontal line is 32-58 degrees.

[0029] In the embodiment, the feeding flow channels 20 are arranged in sequence from top to bottom, and the upper surface of the flow channel plate 30 is bonded to the upper surface of the outlet section 23 to form a bonding surface.

[0030] The angle between the flow channel of the composite extruder head and the horizontal plane is limited, when the angle is too large, the upper and lower space of the extruder behind the head will be large, when the angle is too small, the installation and arrangement of multiple extruders cannot be realized or the situation is too compact, which affects the operation and maintenance.

[0031] The angle is the included angle between the center line of the inlet section 21 of the different flow channels and the horizontal line, and the included angle between the bonding surface of the flow channel plate 30 and the horizontal plane. Through the two aspects of the angle, the flow channel of the head is limited, so that the flow channel can meet the condition of small space occupation without affecting the operation and maintenance.

[0032] In the embodiment, on the surface where the bonding surface is located, the sum of the length of the intermediate section 22 and the outlet section 23 of the first flow channel is 400-480 mm; the length of the second flow channel is 500-580 mm; the length of the third flow channel is 500-580 mm; and the length of the fourth flow channel is 400-480 mm.

[0033] The length of the flow channel determines the flow path of the rubber material inside the head. If the length is too long, the path will be too long, and the material will have a significant temperature rise beyond the standard. If the length is too small, it will cause extrusion fluctuations, and the material will not reach a stable state before being discharged, affecting the final product. Therefore, the length of the flow channel needs to be limited to keep the length of the flow channel within the optimal range.

[0034] Referring to Figs. 1-3 The composite extrusion head also includes a plurality of bushings 40, which are respectively arranged in different inlet sections 21. The outer wall of the bushing 40 is attached to the inner wall of the inlet section 21. The bushing 40 has a hollow structure, and the center line of the hollow structure coincides with the center line of the inlet section 21.

[0035] As the feeding process proceeds, wear will occur in the inlet section 21 of the flow channel. By arranging the bushing 40, the bushing 40 can replace the inlet section 21 of the flow channel and wear, thereby reducing damage to the flow channel and increasing the service life of the flow channel.

[0036] In this embodiment, the bushing 40 is detachably connected to the die body 10. When the bushing 40 is worn, the bushing 40 can be replaced.

[0037] In one embodiment, along the axial direction of the bushing 40, part of the bushing 40 protrudes into the inlet section 21 towards the intermediate section 22, and the protruding length is 2-10 mm. Since different die bodies 10 are frequently opened and closed, the wear of the inlet section 21 at the opening and closing positions will be more serious. By arranging the bushing 40, the die body 10 can be replaced and worn, and since part of the bushing 40 protrudes into the inlet section 21, the inlet section 21 can be better protected.

[0038] In this embodiment, the axial length of the inlet section 21 is 150-280 mm.

[0039] Due to the limitation of the flow channel angle and the overall length, too short or too long of the inlet section 21 will affect the arrangement of other sections.

[0040] Referring to Figs. 1-3 All die bodies 10 include: an intermediate die body 11, which has a first side 111 and a second side 112 arranged transversely, the first side 111 has a protrusion extending transversely; an upper die body 12, which is located above the protrusion and is rotatably arranged relative to the intermediate die body 11, the rotation radius of the upper die body 12 is 800-950 mm; and a lower die body 13, which is located below the protrusion and is rotatably arranged relative to the intermediate die body 11, the rotation radius of the lower die body 10 is 820-970 mm.

[0041] The rotation of the upper die body 12 and the lower die body 13 facilitates opening of the flow channel and replacement of the flow channel plate 30, and also facilitates inspection and maintenance of the flow channel.

[0042] In the present application, the die body 10 comprises a middle die body 11 having a first side 111 and a second side 112 arranged transversely, the first side 111 having a protrusion extending transversely; an upper die body 12 located above the protrusion and movably arranged relative to the middle die body 11; a lower die body 13 located below the protrusion and movably arranged relative to the middle die body 11; and a movable locking mechanism 50, the upper side of the upper die body 12 and the lower side of the lower die body 13 each having a locking surface 53, and the locking surfaces 53 are inclined away from each other along the direction of movement of the locking mechanism 50 towards the locking surfaces 53, and the protrusion abuts against the locking surfaces 53 to drive the upper die body 12 and the lower die body 13 to move close to the middle die body 11.

[0043] The locking mechanism 50 locks and fixes the upper die body 12 and the lower die body 13 after rotation, and the locking mechanism 50 fixes the upper die body 12 and the lower die body 13 through the locking surfaces 53, and the locking surfaces 53 are in contact with the upper die body 12 and the lower die body 13 during locking, at this time, the upper die body 12 and the lower die body 13 cannot rotate due to the limiting of the locking mechanism 50, thereby achieving the locking of the upper die body 12 and the lower die body 13. And the locking surfaces 53 are inclined away from each other, and during the process of gradually moving the locking mechanism 50 close to the die body 10, the locking surfaces 53 will be more and more tightly fitted with the die body 10, thereby improving the locking effect of the die body 10. The inclination angle of the locking is 2.5-12.5 degrees.

[0044] In one of the embodiments, the die body comprises an upper die body, a middle upper die body, a middle die body, a middle lower die body and a lower die body from top to bottom. The upper die body, the middle upper die body, the middle lower die body and the lower die body are movably arranged relative to the middle die body. The die body further comprises a movable locking mechanism, and the upper die body, the middle upper die body, the middle lower die body and the lower die body each have a locking surface.

[0045] The upper die body and the middle upper die body form upper left and upper right locking surfaces, and the middle lower die body and the lower die body form lower left and lower right locking surfaces. The upper left and upper right locking surfaces achieve the locking of the upper die and the middle upper die on the middle die body, and the lower left and lower right locking surfaces achieve the locking of the lower die and the middle lower die on the middle die body.

[0046] In one of the embodiments, the second side 112 of the middle die body 11 has at least one locking surface 53. The locking on the second side 112 of the middle die body 11 can play an auxiliary role and increase the stability of the middle die body 11.

[0047] Referring to Figs. 1-3The locking mechanism 50 comprises a plurality of extending arms 51 extending to the upper side of the upper die body 12, the lower side of the lower die body 13 and the second side 112 of the middle die body 11 respectively, and the end of the extending arm 51 is provided with a locking section 52, and the locking section 52 is provided with an inclined surface matched with a locking surface 53.

[0048] When the locking structure locks the middle die body 11, the locking section 52 on the extending arm 51 locks the middle die body 11.

[0049] In the embodiment, the locking mechanism 50 is provided with a plurality of locking mechanisms 50, and the locking mechanism 50 is arranged on the two sides of the middle die body 11 in transverse direction, and the upper side of the upper die body 12 in transverse direction, the lower side of the lower die body 13 in transverse direction are provided with a plurality of locking surfaces 53, and the locking mechanism 50 in transverse direction is matched with the locking surface 53 in transverse direction.

[0050] By arranging a plurality of locking structures and a plurality of locking surfaces 53, the locking effect of the die body 10 can be improved.

[0051] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:

[0052] 1. Limit the angle between the flow channel of the composite extruder head and the horizontal plane. When the angle is too large, it will cause the upper and lower space of the extruder behind the head to be large, and when the angle is too small, it will not be able to realize the installation and arrangement of multiple extruders or cause too tight situation, affecting operation and maintenance.

[0053] 2. The length of the flow channel determines the flow path of the rubber material in the head. Too long will cause the path to be too long, and the material will have a significant temperature rise beyond the standard. Too small length will cause extrusion fluctuation, and the material will not reach a stable state before being discharged, affecting the final product. Therefore, the length of the flow channel needs to be limited to keep the length of the flow channel within the best range.

[0054] 3. The locking mechanism 50 locks and fixes the rotated upper mold body 12 and lower mold body 13. The locking mechanism 50 fixes the upper mold body 12 and lower mold body 13 through the locking surface 53. When locking, the locking surface 53 is in contact with the upper mold body 12 and lower mold body 13. At this time, due to the limiting effect of the locking mechanism 50, the upper mold body 12 and lower mold body 13 cannot rotate, thereby achieving the locking of the upper mold body 12 and lower mold body 13. Moreover, the locking mechanism is inclined in a direction away from each other. As the locking mechanism 50 gradually approaches the mold body 10, the locking surface 53 will fit more and more tightly with the mold body 10, improving the locking effect of the mold body 10. Obviously, the above-described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0055] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0056] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0057] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A compound extruder head characterized by, The composite extruder head comprises a plurality of dies (10), the dies (10) are connected in abutment and form a plurality of feeding flow channels (20) for the rubber material to pass through, all the feeding flow channels (20) comprise a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, each of the feeding flow channels (20) comprises an inlet section (21), an intermediate section (22) and an outlet section (23) which are sequentially communicated along the flow direction of the rubber material, and an included angle is formed between the center line of the inlet section (21) and the center line of the intermediate section (22); wherein the included angle between the center line of the inlet section (21) of the first flow channel and the horizontal line is 22-35 degrees; the included angle between the center line of the inlet section (21) of the second flow channel and the horizontal line is 0-20 degrees; the included angle between the center line of the inlet section (21) of the third flow channel and the horizontal line is 2.5-12.5 degrees; the included angle between the center line of the inlet section (21) of the fourth flow channel and the horizontal line is 15-35 degrees.

2. The composite extruder head of claim 1, wherein, The composite extruder head further comprises a plurality of flow channel plates (30), the outlet section (23) of each of the feeding flow channels (20) is provided with the flow channel plate (30), the flow channel plate (30) has a fitting surface which is fitted with the surface of the outlet section (23), wherein the included angle between the fitting surface of the flow channel plate (30) in the first flow channel and the horizontal line is 30-58 degrees; the included angle between the fitting surface of the flow channel plate (30) in the second flow channel and the horizontal line is 2.5-28 degrees; the included angle between the fitting surface of the flow channel plate (30) in the third flow channel and the horizontal line is 0-30 degrees; the included angle between the fitting surface of the flow channel plate (30) in the fourth flow channel and the horizontal line is 32-58 degrees.

3. The composite extruder head of claim 2, wherein, The feeding flow channels (20) are arranged in sequence from top to bottom, the upper surface of the flow channel plate (30) is fitted with the upper surface of the outlet section (23) and forms the fitting surface.

4. The composite extruder head of claim 2, wherein, On the surface where the fitting surface is located, the sum of the length of the intermediate section (22) and the outlet section (23) of the first flow channel is 400-480 mm; the length of the second flow channel is 500-580 mm; the length of the third flow channel is 500-580 mm; the length of the fourth flow channel is 400-480 mm.

5. The composite extruder head of claim 1, wherein, The composite extruder head further comprises a plurality of bushings (40), the plurality of bushings (40) are respectively arranged in different inlet sections (21), the outer wall of the bushing (40) is fitted with the inner wall of the inlet section (21), the bushing (40) has a hollow structure, and the center line of the hollow structure coincides with the center line of the inlet section (21).

6. The composite extruder head according to claim 5, wherein in the axial direction of the bushing (40), part of the bushing (40) protrudes out of the inlet section (21) in the direction close to the intermediate section (22) by a length of 2-10 mm; and / or the bushing (40) is detachably connected with the die (10).

7. The composite extruder head of claim 1, wherein, The axial length of the inlet section (21) is 150-280 mm.

8. The composite extruder head of claim 1, wherein, All the dies (10) comprise The intermediate die body (11) has a first side (111) and a second side (112) arranged transversely, the first side (111) has a protrusion extending transversely; The upper die body (12) is arranged above the protrusion and is rotatably arranged relative to the intermediate die body (11), the rotation radius of the upper die body (12) is 800-950mm; The lower die body (13) is arranged below the protrusion and is rotatably arranged relative to the intermediate die body (11), the rotation radius of the lower die body (13) is 820-970mm.

9. The composite extruder head of any one of claims 1-7, wherein, All the die bodies (10) comprise: The intermediate die body (11) has a first side (111) and a second side (112) arranged transversely, the first side (111) has a protrusion extending transversely; The upper die body (12) is arranged above the protrusion and is movably arranged relative to the intermediate die body (11); The lower die body (13) is arranged below the protrusion and is movably arranged relative to the intermediate die body (11); The composite extruder head further comprises a movable locking mechanism (50), the upper side of the upper die body (12) and the lower side of the lower die body (13) are provided with locking surfaces (53), and along the moving direction of the locking mechanism (50) close to the locking surfaces (53), the locking surfaces (53) are inclined away from each other, and the protrusion is close to and abuts against the locking surface (53) to drive the upper die body (12) and the lower die body (13) to be close to and locked on the intermediate die body (11).

10. The composite extruder head of claim 9, wherein, The second side (112) of the intermediate die body (11) has at least one locking surface (53).

11. The composite extruder head of claim 9, wherein, The locking mechanism (50) comprises a plurality of extension arms (51), the extension arms (51) extend to the upper side of the upper die body (12), the lower side of the lower die body (13) and the second side (112) of the intermediate die body (11) respectively, and the end of the extension arm (51) is provided with a locking section (52) bent, the locking section (52) has an inclined surface matched with the locking surface (53).

12. The composite extruder head of claim 9, wherein, The locking mechanism (50) is two, and the locking mechanism (50) is arranged on the two sides of the intermediate die body (11) transversely, the upper side of the upper die body (12) on the two sides transversely, the lower side of the lower die body (13) on the two sides transversely are provided with a plurality of locking surfaces (53), and the locking mechanism (50) on the two sides transversely is matched with the locking surface (53) on the two sides transversely respectively.

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