Rubber extrusion device for aircraft tire manufacturing

Abstract

The utility model relates to the technical field of tire manufacturing equipment, in particular to a rubber extrusion device for aircraft tire manufacturing, which stirs rubber by arranging a stirring sleeve shaft, reduces bubbles in the rubber and improves the product quality, and realizes the extrusion of tread rubber with various widths by arranging a variable-width extrusion device. The universality of the machine is improved; comprising a body; the extruder further comprises an extrusion device, two stirring sleeve shafts, a driving device and a variable-width extrusion device, the extrusion device, the driving device and the variable-width extrusion device are all mounted on the extruder body, and the two stirring sleeve shafts are both mounted on the extrusion device; the machine body provides support, the extrusion device extrudes rubber, the stirring sleeve shaft stirs the rubber, the driving device provides power, and the variable-width extrusion device enables the extrusion device to extrude tread rubber with different widths.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tire manufacturing equipment, in particular to a kind of aviation tire manufacturing rubber extrusion device. BACKGROUND

[0002] Rubber extruder is a basic equipment of rubber industry, and is one of key equipment affecting product quality, plays a very important role in the production process of tire and rubber product.

[0003] For example, a kind of rubber extruder for rubber tire production represented by utility model patent with the announcement number CN219076458U, its main structure includes extruding screw rod, hydraulic telescopic cylinder and lockable universal wheel, extruding screw rod extrudes, hydraulic telescopic cylinder lifts lockable universal wheel, and lockable universal wheel facilitates the movement of machine.

[0004] But the existing technical equipment still has the following problems when using: the stirring of rubber before extrusion is not sufficient enough, air bubbles are easily mixed in the extruded finished product, the product quality is poor, and the existing extrusion structure is not convenient for processing a variety of width of tread rubber, and the machine versatility is poor. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides a kind of aviation tire manufacturing rubber extrusion device by setting stirring sleeve shaft to stir rubber, reduce the air bubble in rubber, improve product quality, and by setting width-variable extrusion device, realize the extrusion of a variety of width of tread rubber, improve machine versatility.

[0006] The utility model discloses a kind of aviation tire manufacturing rubber extrusion device, including fuselage;Further including extrusion device, two stirring sleeve shafts, driving device and width-variable extrusion device, extrusion device, driving device and width-variable extrusion device are all installed on fuselage, two stirring sleeve shafts are all installed on extrusion device;Fuselage provides support, extrusion device extrudes rubber, stirring sleeve shaft stirs rubber, driving device provides power, and width-variable extrusion device makes extrusion device extrude different width of tread rubber.

[0007] Preferably, the fuselage includes a plurality of columns, a bottom plate, and a bracket one, the bottom plate is installed at the top end of the plurality of columns, and the bracket one is installed at the top end of the bottom plate; support is provided.

[0008] Preferably, the extrusion device comprises an extrusion box, two augers, a feeding box, a hinge and a box cover, the extrusion box is mounted at the top end of the base plate, and the extrusion box is located at the front side of the support, the front end of the extrusion box is provided with an extrusion port, the top end of the extrusion box is provided with a feeding port, the rear end of the extrusion box is provided with two mounting holes, the inside of the extrusion box is provided with a cavity, and the extrusion port and the feeding port are both communicated with the inside of the extrusion box, the two augers are rotatably installed in the two mounting holes respectively, and the diameters of the two augers are both smaller than the diameters of the mounting holes, the feeding box is installed at the feeding port, the hinge is installed at the top end of the feeding box, the box cover is hingedly installed on the hinge, and the box cover covers the feeding box, and a handle is arranged at the top end of the box cover; the augers rotate to extrude the rubber, the extrusion port of the extrusion box shapes the rubber during extrusion, the rubber is put into the inside of the extrusion box by opening the box cover, and the handle facilitates opening of the box cover.

[0009] Preferably, the two stirring sleeves are rotatably installed on the two augers respectively, and the two stirring sleeves are rotatably installed in the mounting holes of the extrusion box, and the two stirring sleeves are located between the two augers and the two mounting holes respectively; the stirring sleeves rotate to stir the rubber, remove the bubbles in the rubber, and improve the product quality.

[0010] Preferably, the driving device comprises three chain wheels, a chain, two gear wheels one, a gear wheel two, a rotating shaft, a speed reducer one, a speed reducer two and a motor, the two chain wheels are fixedly installed at the rear ends of the two augers respectively, and the remaining chain wheel is rotatably installed at the front end of the speed reducer one, the chain is installed on the three chain wheels, the two gear wheels one are fixed at the rear ends of the two stirring sleeves respectively, the gear wheel two is rotatably installed at the rear end of the extrusion box, and the gear wheel two and the two gear wheels one are engaged respectively, the rotating shaft is fixedly installed at the rear end of the gear wheel two, and the rotating shaft and the gear wheel two are concentric, the rotating shaft is rotatably installed at the front end of the speed reducer two, the speed reducer one is fixedly installed at the front end of the speed reducer two, and the motor is fixedly installed at the rear end of the speed reducer two, and the motor provides power to the chain wheel and the gear wheel two through the speed reducer two and the speed reducer one respectively; the motor provides power, the speed reducer two separates the power of the motor into two paths of high speed and low speed, the high-speed power is transmitted to the two gear wheels one through the speed reducer two and the rotating shaft respectively, the two gear wheels one drive the two stirring sleeves to rotate respectively, and the low-speed power is transmitted to the other two chain wheels through the speed reducer one, the chain wheel and the chain respectively, and the other two chain wheels drive the two augers to rotate respectively.

[0011] Preferably, the variable-width extrusion device comprises a support two, a hydraulic cylinder, a stop block one and a limiting block, the support two is installed at the top end of the base plate, the support two is provided with a sliding groove one, the hydraulic cylinder is fixedly installed at the top end of the support two, the stop block one is slidably installed in the sliding groove, the stop block one is connected with the output end of the hydraulic cylinder, and the limiting block is fixedly installed at the extrusion port of the extrusion box, and the stop block one and the limiting block are slidably matched; the hydraulic cylinder provides power to drive the stop block one to slide left and right along the support two and the limiting block, and the limiting block slides to the right to reduce the width of the extruded tread rubber, and vice versa.

[0012] Preferably, the variable width extrusion device comprises a support three, a support four, a lead screw, a lead screw nut, a stop block two and a hand wheel, the support three is installed at the top end of the bottom plate, the support three is provided with a sliding groove two at the top end, the support four is fixedly installed at the top end of the support three, the lead screw is rotatably installed on the support four, the lead screw nut is slidably installed on the lead screw, and the lead screw and the lead screw nut are threadedly matched, the lead screw nut is rotatably installed on the stop block two, the stop block two is slidably installed in the sliding groove two of the support three, and the stop block two is provided with a scale at the top end, the rear end of the stop block two is attached to the extrusion outlet of the extrusion box, and the hand wheel is rotatably installed at the left end of the support four and connected with the lead screw.

[0013] Compared with the prior art, the rubber is stirred before extrusion, the bubbles in the rubber can be reduced, and the product quality is higher; and a plurality of widths of the tread rubber can be produced without replacing the extrusion head, and the machine has better universality. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the axonometric structure schematic diagram of the utility model;

[0015] Figure 2 is the axonometric structure schematic diagram of the fuselage;

[0016] Figure 3 is the axonometric structure schematic diagram of the extrusion device;

[0017] Figure 4 is the axonometric structure schematic diagram of the stirring sleeve shaft;

[0018] Figure 5 is the axonometric structure schematic diagram of the driving device;

[0019] Figure 6 is the axonometric structure schematic diagram of the support two and the hydraulic cylinder etc.;

[0020] Figure 7 is the axonometric structure schematic diagram of the support three and the support four etc.

[0021] Marked in the drawing: 01, body; 11, column; 12, bottom plate; 13, support I; 02, extrusion device; 21, extrusion box; 22, screw conveyor; 23, feeding box; 24, hinge; 25, box cover; 03, stirring sleeve shaft; 04, driving device; 41, chain wheel; 42, chain; 43, gear I; 44, gear II; 45, rotating shaft; 46, speed reducer I; 47, speed reducer II; 48, motor; 05, variable width extrusion device; 51, support II; 52, hydraulic cylinder; 53, stop block I; 54, limiting block; 61, support III; 62, support IV; 63, lead screw; 64, lead screw nut; 65, stop block II; 66, hand wheel. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0023] Embodiment 1

[0024] It comprises a body 01; it also comprises an extrusion device 02, two stirring sleeve shafts 03, a driving device 04 and a variable width extrusion device 05, the extrusion device 02, the driving device 04 and the variable width extrusion device 05 are all installed on the body 01, and the two stirring sleeve shafts 03 are both installed on the extrusion device 02; the body 01 provides support, the extrusion device 02 extrudes rubber, the stirring sleeve shaft 03 stirs rubber, the driving device 04 provides power, and the variable width extrusion device 05 makes the extrusion device 02 extrude tread rubber of different widths;

[0025] The body 01 comprises a plurality of columns 11, a bottom plate 12 and a support I 13, the bottom plate 12 is installed at the top end of the plurality of columns 11, and the support I 13 is installed at the top end of the bottom plate 12;

[0026] The extrusion device 02 comprises an extrusion box 21, two screw conveyors 22, a feeding box 23, a hinge 24 and a box cover 25, the extrusion box 21 is installed at the top end of the bottom plate 12, and the extrusion box 21 is located at the front side of the support I 13, the extrusion box 21 is provided with an extrusion opening at the front end, the extrusion box 21 is provided with a feeding port at the top end, the extrusion box 21 is provided with two mounting holes at the rear end, the extrusion box 21 is provided with a cavity inside, and the extrusion opening and the feeding port are both communicated with the inside of the extrusion box 21, the two screw conveyors 22 are respectively rotatably installed in the two mounting holes, and the diameters of the two screw conveyors 22 are all smaller than the diameters of the mounting holes, the feeding box 23 is installed at the feeding port, the hinge 24 is installed at the top end of the feeding box 23, the box cover 25 is hingedly installed on the hinge 24, and the box cover 25 covers the feeding box 23, and the box cover 25 is provided with a handle at the top end;

[0027] The two stirring sleeve shafts 03 are respectively rotatably installed on the two augers 22, and the two stirring sleeve shafts 03 are rotatably installed in the mounting holes of the extrusion box 21, and the two stirring sleeve shafts 03 are respectively located between the two augers 22 and the two mounting holes;

[0028] The driving device 04 comprises three chain wheels 41, a chain 42, two gear wheels one 43, a gear wheel two 44, a rotating shaft 45, a speed reducer one 46, a speed reducer two 47 and a motor 48, the two chain wheels 41 are respectively fixedly installed at the rear ends of the two augers 22, the remaining one chain wheel 41 is rotatably installed at the front end of the speed reducer one 46, the chain 42 is installed on the three chain wheels 41, the two gear wheels one 43 are respectively fixed at the rear ends of the two stirring sleeve shafts 03, the gear wheel two 44 is rotatably installed at the rear end of the extrusion box 21, and the gear wheel two 44 and the two gear wheels one 43 are respectively meshed, the rotating shaft 45 is fixedly installed at the rear end of the gear wheel two 44, and the rotating shaft 45 and the gear wheel two 44 are concentric, the rotating shaft 45 is rotatably installed at the front end of the speed reducer two 47, the speed reducer one 46 is fixedly installed at the front end of the speed reducer two 47, the motor 48 is fixedly installed at the rear end of the speed reducer two 47, and the motor 48 provides power to one chain wheel 41 and the gear wheel two 44 through the speed reducer two 47 and the speed reducer one 46 respectively;

[0029] The variable-width extrusion device 05 comprises a bracket two 51, a hydraulic cylinder 52, a stop block one 53 and a limiting block 54, the bracket two 51 is installed at the top end of the bottom plate 12, a chute one is arranged on the bracket two 51, the hydraulic cylinder 52 is fixedly installed at the top end of the bracket two 51, the stop block one 53 is slidably installed in the chute, the stop block one 53 is connected with the output end of the hydraulic cylinder 52, and the limiting block 54 is fixedly installed at the extrusion outlet of the extrusion box 21, and the stop block one 53 and the limiting block 54 are in sliding fit;

[0030] As shown in Figures 1 to 6 The utility model discloses an aviation tire manufacturing rubber extrusion device, when working, first through the opening box cover 25, put rubber into extrusion box 21 inside, handle convenient opening box cover 25, then open motor 48, motor 48 provides power, and speed reducer two 47 separates the power of motor 48 into high -speed and low -speed two ways, and high -speed power is conducted to two gear wheels one 43 respectively through speed reducer two 47 and rotating shaft 45, and two gear wheels one 43 drive two stirring sleeve shafts 03 rotation respectively, and stirring sleeve shaft 03 rotation stirs rubber, removes the bubble in rubber, improves product quality, and low -speed power is conducted to another two chain wheels 41 through speed reducer one 46, a chain wheel 41 and chain 42 respectively, and another two chain wheels 41 drive two augers 22 rotation respectively, and auger 22 rotation extrudes rubber, and the extrusion outlet of extrusion box 21 shapes rubber when extruding, and when rubber reaches extrusion outlet, opens hydraulic cylinder 52, and hydraulic cylinder 52 provides power, and drive stop block one 53 slides along bracket two 51 and limiting block 54, and limiting block 54 right slide makes extruded tread width decrease, and contrarily then tread width increases.

[0031] Embodiment 2

[0032] The machine body 01; further comprising extrusion device 02, two mixing sleeve shafts 03, driving device 04 and variable width extrusion device 05, extrusion device 02, driving device 04 and variable width extrusion device 05 are installed on the machine body 01, two mixing sleeve shafts 03 are installed on the extrusion device 02; the machine body 01 provides support, the extrusion device 02 extrudes rubber, the mixing sleeve shaft 03 stirs rubber, the driving device 04 provides power, and the variable width extrusion device 05 makes the extrusion device 02 extrude different width of tread rubber;

[0033] The machine body 01 comprises a plurality of columns 11, a bottom plate 12 and a bracket 13, the bottom plate 12 is installed at the top of the plurality of columns 11, and the bracket 13 is installed at the top of the bottom plate 12;

[0034] The extrusion device 02 comprises an extrusion box 21, two conveyors 22, a feeding box 23, a hinge 24 and a box cover 25, the extrusion box 21 is installed at the top of the bottom plate 12, and the extrusion box 21 is located at the front side of the bracket 13, the extrusion box 21 is provided with an extrusion port at the front end, the extrusion box 21 is provided with a feeding port at the top end, the extrusion box 21 is provided with two mounting holes at the rear end, the extrusion box 21 is provided with a cavity inside, and the extrusion port and the feeding port are communicated with the inside of the extrusion box 21, two conveyors 22 are respectively rotatably installed in the two mounting holes, and the diameters of the two conveyors 22 are smaller than the diameters of the mounting holes, the feeding box 23 is installed at the feeding port, the hinge 24 is installed at the top end of the feeding box 23, and the box cover 25 is hingedly installed on the hinge 24 and covers the feeding box 23, and the box cover 25 is provided with a handle at the top end;

[0035] The two mixing sleeve shafts 03 are rotatably installed on the two conveyors 22, and the two mixing sleeve shafts 03 are rotatably installed in the mounting holes of the extrusion box 21, and the two mixing sleeve shafts 03 are respectively located between the two conveyors 22 and the two mounting holes;

[0036] The driving device 04 comprises three chain wheels 41, a chain 42, two gear wheels I 43, a gear wheel II 44, a rotating shaft 45, a reducer I 46, a reducer II 47 and a motor 48, the two chain wheels 41 are fixedly installed at the rear ends of the two conveyors 22 respectively, the remaining chain wheel 41 is rotatably installed at the front end of the reducer I 46, the chain 42 is installed on the three chain wheels 41, the two gear wheels I 43 are fixedly installed at the rear ends of the two stirring sleeves 03 respectively, the gear wheel II 44 is rotatably installed at the rear end of the extrusion box 21, the gear wheel II 44 and the two gear wheels I 43 are meshed respectively, the rotating shaft 45 is fixedly installed at the rear end of the gear wheel II 44 and the rotating shaft 45 is concentric with the gear wheel II 44, the rotating shaft 45 is rotatably installed at the front end of the reducer II 47, the reducer I 46 is fixedly installed at the front end of the reducer II 47, the motor 48 is fixedly installed at the rear end of the reducer II 47, and the motor 48 provides power to the chain wheel 41 and the gear wheel II 44 through the reducer II 47 and the reducer I 46 respectively;

[0037] The variable-width extrusion device 05 comprises a bracket III 61, a bracket IV 62, a lead screw 63, a lead screw nut 64, a stop block II 65 and a hand wheel 66, the bracket III 61 is installed at the top end of the bottom plate 12, the bracket III 61 is provided with a sliding groove II at the top end, the bracket IV 62 is fixedly installed at the top end of the bracket III 61, the lead screw 63 is rotatably installed on the bracket IV 62, the lead screw nut 64 is slidably installed on the lead screw 63 and the lead screw 63 and the lead screw nut 64 are screw-threadedly matched, the lead screw nut 64 is rotatably installed on the stop block II 65, the stop block II 65 is slidably installed in the sliding groove II of the bracket III 61 and the stop block II 65 is provided with a scale at the top end, the rear end of the stop block II 65 abuts against the extrusion opening of the extrusion box 21, and the hand wheel 66 is rotatably installed at the left end of the bracket IV 62 and connected with the lead screw 63;

[0038] As Figures 1 to 5 and Figure 7As shown in the utility model discloses an aviation tire manufacturing rubber extrusion device, when working, first through the opening box cover 25 and put rubber into the extrusion box 21 inside, handle convenient opening box cover 25, then open motor 48, motor 48 provides power, reducer two 47 separates the power of motor 48 into two paths of high speed and low speed, high speed power is conducted to two gear wheels one 43 through reducer two 47 and rotating shaft 45 respectively, two gear wheels one 43 drive two stirring sleeve shafts 03 to rotate respectively, and stirring sleeve shaft 03 rotates and stirs rubber, removes the bubble in rubber, improves product quality, low speed power is conducted to another two sprockets 41 through reducer one 46, a sprocket 41 and chain 42 respectively, and another two sprockets 41 drive two augers 22 to rotate respectively, and auger 22 rotates and extrudes rubber, and the extrusion port of extrusion box 21 shapes rubber when extruding, when rubber reaches the extrusion port, the left and right movement of the inside part of variable width extrusion device 05 makes the extrusion port shielded through hand wheel 66 rotating lead screw 63, and lead screw 63 and screw nut 64 cooperate and convert the rotation of lead screw 63 into the left and right movement of stop block two 65, and stop block two 65 right shift makes the width of extruded tread rubber reduce, and vice versa, the scale of stop block two 65 facilitates the control of the width of extruded tread rubber.

[0039] As Figures 1 to 7 As shown in the utility model discloses an aviation tire manufacturing rubber extrusion device, when working, first through the opening box cover 25 and put rubber into the extrusion box 21 inside, handle convenient opening box cover 25, then open motor 48, motor 48 provides power, reducer two 47 separates the power of motor 48 into two paths of high speed and low speed, high speed power is conducted to two gear wheels one 43 through reducer two 47 and rotating shaft 45 respectively, two gear wheels one 43 drive two stirring sleeve shafts 03 to rotate respectively, and stirring sleeve shaft 03 rotates and stirs rubber, removes the bubble in rubber, improves product quality, low speed power is conducted to another two sprockets 41 through reducer one 46, a sprocket 41 and chain 42 respectively, and another two sprockets 41 drive two augers 22 to rotate respectively, and auger 22 rotates and extrudes rubber, and the extrusion port of extrusion box 21 shapes rubber when extruding, when rubber reaches the extrusion port, the left and right movement of the inside part of variable width extrusion device 05 makes the extrusion port shielded through hand wheel 66 rotating lead screw 63, and lead screw 63 and screw nut 64 cooperate and convert the rotation of lead screw 63 into the left and right movement of stop block two 65, and stop block two 65 right shift makes the width of extruded tread rubber reduce, and vice versa, the scale of stop block two 65 facilitates the control of the width of extruded tread rubber.

[0040] The motor 48 and the hydraulic cylinder 52 are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0041] The main function realized by the utility model is that: the rubber is stirred through the setting of the stirring sleeve shaft 03, the bubbles in the rubber are reduced, the product quality is improved, and the setting of the variable-width extrusion device 05 is realized to extrude the tread rubber of various widths, the machine versatility is improved; the prior art problems of insufficient stirring of the rubber before extrusion, easy mixing of bubbles in the extruded finished product, poor product quality, and inconvenient processing of various width tread rubbers of the existing extrusion structure, and poor machine versatility are solved.

[0042] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should also be regarded as the protection range of the utility model.

Claims

1. A rubber extrusion device for manufacturing aircraft tires, comprising a fuselage (01); characterized in that: The invention also includes an extrusion device (02), two stirring sleeve shafts (03), a driving device (04) and a variable width extrusion device (05). The extrusion device (02), the driving device (04) and the variable width extrusion device (05) are all mounted on the machine body (01), and the two stirring sleeve shafts (03) are all mounted on the extrusion device (02). The machine body (01) provides support, the extrusion device (02) extrude rubber, the stirring sleeve shafts (03) stir the rubber, the driving device (04) provides power, and the variable width extrusion device (05) enables the extrusion device (02) to extrude tread rubber of different widths.

2. The rubber extrusion device for manufacturing aircraft tires according to claim 1, characterized in that: The fuselage (01) comprises a plurality of columns (11), a base plate (12) and a bracket (13), wherein the base plate (12) is mounted on the top of the plurality of columns (11), and the bracket (13) is mounted on the top of the base plate (12).

3. The rubber extrusion device for manufacturing aircraft tires according to claim 2, characterized in that: The extrusion device (02) includes an extrusion box (21), two augers (22), a feed box (23), a hinge (24) and a box cover (25), wherein the extrusion box (21) is mounted on the top of the bottom plate (12), and the extrusion box (21) is located in front of the bracket (13), an extrusion port is provided at the front end of the extrusion box (21), a feed port is provided at the top end of the extrusion box (21), two mounting holes are provided at the rear end of the extrusion box (21), and a chamber is provided inside the extrusion box (21). The extrusion port and the feed port are both communicated with the interior of the extrusion box (21), the two screw dragons (22) are rotatably installed in the two mounting holes respectively, and the diameters of the two screw dragons (22) are smaller than the diameters of the mounting holes, the feed box (23) is installed at the feed port, the hinge (24) is installed on the top of the feed box (23), the box cover (25) is hingedly installed on the hinge (24), and the box cover (25) is installed on the feed box (23), and a handle is provided on the top of the box cover (25).

4. The rubber extrusion device for manufacturing aircraft tires according to claim 3, characterized in that: The two stirring sleeve shafts (03) are rotatably mounted on the two augers (22) respectively, and the two stirring sleeve shafts (03) are rotatably mounted in the mounting holes of the extrusion box (21), and the two stirring sleeve shafts (03) are respectively located between the two augers (22) and the two mounting holes.

5. The rubber extrusion device for manufacturing aircraft tires according to claim 4, characterized in that: The driving device (04) includes three sprockets (41), a chain (42), two gears (43), a gear (44), a rotating shaft (45), a reducer (46), a reducer (47) and a motor (48). The two sprockets (41) are fixedly mounted on the rear ends of the two augers (22), and the remaining sprocket (41) is rotatably mounted on the front end of the reducer (46). The chain (42) is mounted on the three sprockets (41). The two gears (43) are fixed on the rear ends of the two stirring sleeve shafts (03), and the gear (44) is rotatably mounted on the extruder. The invention relates to a transmission box (21) and a transmission box (21). The transmission box (21) is provided at the rear end of the transmission box (21), and the gear 2 (44) and the two gears 1 (43) are meshed respectively. The rotating shaft (45) is fixedly mounted on the rear end of the gear 2 (44), and the rotating shaft (45) and the gear 2 (44) are concentric. The rotating shaft (45) is rotatably mounted on the front end of the reducer 2 (47), the reducer 1 (46) is fixedly mounted on the front end of the reducer 2 (47), and the motor (48) is fixedly mounted on the rear end of the reducer 2 (47), and the motor (48) provides power to a sprocket (41) and the gear 2 (44) respectively through the reducer 2 (47) and the reducer 1 (46).

6. The rubber extrusion device for manufacturing aircraft tires according to claim 5, characterized in that: The variable width extrusion device (05) includes a second bracket (51), a hydraulic cylinder (52), a first stopper (53) and a limit block (54), wherein the second bracket (51) is mounted on the top of the bottom plate (12), a first slide groove is provided on the second bracket (51), the hydraulic cylinder (52) is fixedly mounted on the top of the second bracket (51), the first stopper (53) is slidably mounted in the slide groove, the first stopper (53) is connected to the output end of the hydraulic cylinder (52), the limit block (54) is fixedly mounted at the extrusion port of the extrusion box (21), and the first stopper (53) and the limit block (54) are slidably matched.

7. The rubber extrusion device for manufacturing aircraft tires according to claim 6, characterized in that: The variable width extrusion device (05) comprises a bracket three (61), a bracket four (62), a screw (63), a screw nut (64), a stopper two (65) and a hand wheel (66), wherein the bracket three (61) is mounted on the top of the base plate (12), a slide groove two is provided on the top of the bracket three (61), the bracket four (62) is fixedly mounted on the top of the bracket three (61), the screw (63) is rotatably mounted on the bracket four (62), and the screw nut (64) is slidably mounted on the screw ( 63), and the lead screw (63) and the lead screw nut (64) are threadedly matched, the lead screw nut (64) is rotatably mounted on the second stopper (65), the second stopper (65) is slidably mounted in the second slide groove of the third bracket (61), and a scale is set on the top of the second stopper (65), the rear end of the second stopper (65) is fitted with the extrusion port of the extrusion box (21), the hand wheel (66) is rotatably mounted on the left end of the fourth bracket (62), and the hand wheel (66) and the lead screw (63) are connected.

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