CN112250927A

CN112250927A - Odorless regenerated rubber and automobile foot pad prepared from same

Info

Publication number: CN112250927A
Application number: CN202011080235.8A
Authority: CN
Inventors: 范高锋; 孙放明; 林高省
Original assignee: ZHEJIANG HONGSHENGYUAN CAR ACCESSORIES CO Ltd
Current assignee: ZHEJIANG HONGSHENGYUAN CAR ACCESSORIES CO Ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-01-22

Abstract

The invention discloses an odorless regenerated rubber which comprises the following components in parts by weight: 1-10 parts of natural rubber, 0.5-5 parts of butadiene styrene rubber, 20-80 parts of regenerated rubber and 15-30 parts of calcium powder; 5-15 parts of rubber powder; 0.03-1 part of rubber accelerator, 0.1-2 parts of zinc oxide, 0.1-2 parts of stearic acid, 0.1-2 parts of sulfur and 1-5 parts of aromatic oil, and the preparation process of the odorless regenerated rubber comprises the following steps: a. preparing materials: adjusting the roll spacing of the mixing roll to 8m by adopting an open mixing roll, adding natural rubber, butadiene styrene rubber, reclaimed rubber, calcium powder, rubber powder, zinc oxide, stearic acid and sulfur, mixing for a period of time, adding aromatic oil, continuously mixing, and finally adding a rubber accelerator, and mixing for 1 minute; secondly, adjusting the roll spacing of the mixing roll to 1.5mm, performing thin pass for 5 times, finally, adjusting the roll spacing of the mixing roll to 8m, uniformly stirring, then discharging sheets, and cooling for 5 hours; b. molding, namely molding according to the shape required by the product, wherein the molded product is the automobile foot pad; c. and (3) a vulcanization process, namely vulcanizing the sheet materials by adopting a flat vulcanizing machine.

Description

Odorless regenerated rubber and automobile foot pad prepared from same

Technical Field

The invention belongs to the technical field of rubber products, and particularly relates to odorless regenerated rubber and an automobile foot pad prepared from the odorless regenerated rubber.

Background

Rubber products refer to various articles produced by using natural rubber and synthetic rubber as raw materials, provide daily and medical light industrial rubber products which are indispensable in daily life, are widely applied to industries such as mining, traffic, building, machinery, electronics and the like, and are mostly made of rubber materials and the like, for example, articles such as cushions, foot pads and the like in automotive interiors.

The regenerated rubber is rubber which is processed by using vulcanized leftover materials in the production of rubber products as raw materials, has certain plasticity and can be reused, is an important raw material in the rubber industry in the world, can replace natural rubber on one hand, relieves the serious shortage of the natural rubber on the other hand, realizes the recycling of the waste rubber on the other hand, and solves the problem of environmental pollution of the waste rubber. However, rubber products prepared from the regenerated rubber generally have the defect of poor weather resistance, for example, Wangxian points in the research and development of high-hydrocarbon-content aging-resistant high-quality regenerated rubber in the 12 th stage of China tire resource comprehensive utilization CTRA 2011 pointed out that the regenerated rubber can only be used as a filling material mostly due to low hydrocarbon content and poor aging resistance. Due to poor aging resistance, the application of the regenerated rubber in the rubber industry is limited.

Disclosure of Invention

The invention provides an odorless regenerated rubber and an automobile foot pad prepared from the odorless regenerated rubber in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: the odorless regenerated rubber comprises the following raw materials in parts by weight: 1-10 parts of natural rubber, 0.5-5 parts of butadiene styrene rubber, 20-80 parts of regenerated rubber and 15-30 parts of calcium powder; 5-15 parts of rubber powder; 0.03-1 part of rubber accelerator, 0.1-2 parts of zinc oxide, 0.1-2 parts of stearic acid, 0.1-2 parts of sulfur, 1-5 parts of aromatic oil,

the preparation process of the odorless regenerated rubber comprises the following steps:

a. preparing materials: adjusting the roll spacing of the mixing roll to 8m by adopting an open mixing roll, adding natural rubber, butadiene styrene rubber, reclaimed rubber, calcium powder, rubber powder, zinc oxide, stearic acid and sulfur, mixing for a period of time, adding aromatic oil, continuously mixing, and finally adding a rubber accelerator, and mixing for 1 minute; secondly, adjusting the roll spacing of the mixing roll to 1.5mm, performing thin pass for 5 times, finally, adjusting the roll spacing of the mixing roll to 8m, uniformly stirring, then discharging sheets, and cooling for 5 hours;

b. molding, namely molding according to the shape required by the product, wherein the molded product is the automobile foot pad;

c. a vulcanization process, namely vulcanizing the sheet materials by using a flat vulcanizing machine;

the open type mixing roll in the step a comprises two groups of first mounting plates, two bearing plates arranged on the first mounting plates and a mounting table arranged on the other side of the first mounting plates, wherein the two groups of first mounting plates are arranged, the bearing plates are arranged between the two groups of first mounting plates, two groups of double rollers are arranged on the first mounting plates, and a driving motor for driving the double rollers to rotate is arranged on the mounting table; a first movable groove is formed in the first mounting plate, a limiting groove is formed in one side of the first movable groove, a connecting shaft and a first driving wheel are arranged at two ends of the pair roller respectively, the connecting shaft penetrates through the first movable groove, and the first driving wheel is arranged in the limiting groove; a second fixed block is arranged in the first movable groove, a first through cavity is formed in the second fixed block, a first push rod is arranged in the first through cavity, a second push rod is arranged in the first push rod, and a hand wheel capable of respectively pushing the first push rod and the second push rod to move is arranged at one end of the first push rod; after rubber raw materials and additives are put on the pair rollers, the driving motor drives the pair rollers to rotate, and the two pairs of rollers rotate relatively and then carry out mixing operation; after the first-step mixing is finished, rotating a hand wheel, pushing a first push rod to move by the hand wheel, pushing a connecting shaft to move in a first movable groove by the first push rod, changing the distance between the two pairs of rollers, then pushing a second push rod to move by operating the hand wheel, continuously pushing the connecting shaft to move by the second push rod, adjusting the distance between the two pairs of rollers to a required value, and continuously driving the rollers to rotate by a driving motor to perform a thin-pass step; and after the thin passing step is finished, the hand wheel is rotated reversely, the first push rod moves back, the distance between the two pairs of rollers is recovered, and the driving motor drives the pairs of rollers to rotate again to finish the final sheet discharging operation.

The raw materials also comprise sulfated castor oil and tallow benzyl dimethyl ammonium chloride, so that the aging resistance of the odorless regenerated rubber is improved, and the effects of aging resistance, long service time and environmental protection are achieved; the mixing roll can be continuously adjusted according to actual needs, so that the distance between the pair rollers on the mixing roll meets the requirements of various different working conditions, the rubber raw materials can be conveniently subjected to various treatments, and the mixing effect of the rubber raw materials is improved; the first push rod and the second push rod can be respectively controlled by rotating the hand wheel, and the pair rollers can be respectively roughly adjusted and finely adjusted by the first push rod and the second push rod, so that the distance between the two groups of pair rollers can be adjusted to a required value, the adjustment precision of the pair rollers is effectively improved, the practicability of the mixing mill is ensured, and the mixing effect of rubber raw materials is further ensured; under the arrangement of the second fixed block, when the pair of rollers are maintained, the second fixed block is detached from the first movable groove, and then the pair of rollers can be directly taken out from the first movable groove, so that the pair of rollers can be maintained, and the maintenance difficulty of the pair of rollers is reduced; the first driving wheel is matched with the limiting groove to limit the pair of rollers, and the pair of rollers are fixed on the first mounting plate, so that the use reliability of the mixing roll is ensured; the distance between the pair of rollers is adjusted by rotating the hand wheel, so that the distance adjustment operation of the pair of rollers is simpler, a complex transmission mechanism is not required to be arranged, the cost of the mixing roll is reduced, and the market of the mixing roll is widened.

The temperature of the mixing mill in the step a is 50-60 ℃.

And b, adding natural rubber, butadiene styrene rubber, reclaimed rubber, calcium powder, rubber powder, zinc oxide, stearic acid and sulfur in the step a, mixing for 5min, and adding aromatic oil, mixing for 8 min.

The vulcanization temperature in the step c is 150 ℃ and 180 ℃, and the pressure is 18-25 MPa.

The vulcanizing time in the step c is 25 min.

A connecting pipe is arranged in the first through cavity, a first movable cavity is arranged on the first push rod, the connecting pipe penetrates through the first movable cavity, a sleeve ring is arranged at one end of the connecting pipe, a connecting groove matched with the connecting pipe is formed in the sleeve ring, first threads are arranged on the side wall of the sleeve ring, second threads matched with the first threads are arranged on the inner wall of the first movable cavity, a first connecting rod penetrates through the first through cavity, the hand wheel is arranged at one end of the first connecting rod, and a first transmission block matched with the sleeve ring is arranged on the first connecting rod; when the distance between the two pairs of rollers is adjusted, the first connecting rod is pulled outwards, the first transmission block moves into the lantern ring along with the first connecting rod, the first transmission block and the lantern ring form transmission fit, the hand wheel is rotated, the hand wheel drives the transmission wheel to rotate, when the lantern ring rotates, the first thread and the second thread are matched to push the first push rod to move forwards, and the first push rod pushes the connecting shaft to move to roughly adjust the distance between the two pairs of rollers.

A second movable cavity is arranged on the first push rod, the second push rod is arranged in the second movable cavity, a second through cavity is arranged on the side wall of the second movable cavity, a second connecting rod is arranged at one end of the second push rod and penetrates through the second through cavity, third threads are arranged on the second connecting rod, fourth threads matched with the third threads are arranged on the inner wall of the second through cavity, a transmission groove is arranged on the second connecting rod, and a second transmission block matched with the transmission groove is arranged on the first transmission block; after the rough adjustment of the distance between the rollers is completed, the first connecting rod is pushed towards the inside of the first movable cavity, the first transmission block moves towards the bottom of the first movable cavity along with the first connecting rod, the second transmission block is inserted into the transmission groove, the first connecting rod and the second connecting rod form transmission fit, the hand wheel is rotated, the first connecting rod drives the second connecting rod to rotate, the third thread and the fourth thread are matched to push the second connecting rod to move forwards, the second push rod pushes the connecting shaft to continue to move, and the fine adjustment of the rollers is performed.

A second movable groove is formed in the lantern ring, a first fixed block is arranged in the second movable groove, the first fixed block is made of elastic materials, a supporting sheet used for pushing the first fixed block to move towards the outside of the second movable groove is arranged in the second movable groove, and a first supporting plate matched with the supporting sheet is arranged on the inner wall of the second movable groove; a third movable cavity is arranged at the bottom of the second movable groove, a first push plate is arranged in the third movable cavity, a first reset spring is arranged on the first push plate, a connecting rope is arranged on the first push plate, the other end of the connecting rope is fixedly connected to the first fixed block, and a through groove for the connecting rope to pass through is formed in the supporting sheet; a second push plate is arranged on the first transmission block; when the first transmission block is positioned in the first movable cavity, the first fixed block is abutted against the inner wall of the first movable cavity to block the first push rod from rotating; when the distance of two sets of pairs of rollers of adjustment, toward the first connecting axle of outer pulling, first connecting axle drives first transmission piece and removes, the second push pedal removes to lantern ring one side, the second push pedal promotes first push pedal and removes toward third movable cavity, the rope removal is connected in the pulling of first push pedal, connect the first fixed block of rope pulling and remove, first fixed block moves toward second movable groove inside, first transmission piece forms the transmission cooperation with the lantern ring formation in entering into the lantern ring, the hand wheel rotates, first transmission piece rotates and drives the lantern ring and rotate, first screw thread and second screw thread cooperate and promote first push rod and remove, do the adjustment to two sets of pairs of rollers distances.

A fourth movable cavity is arranged on the second push rod, a third movable groove is arranged on the inner wall of the fourth movable cavity, a third fixed block is arranged in the third movable groove, a first connecting plate is arranged in the fourth movable cavity, the third fixed block is connected to the first connecting plate through a third connecting rod, and the third connecting rod is made of elastic materials; the transmission groove is communicated with the fourth movable cavity, a first push block is arranged in the fourth movable cavity, the first push block penetrates through the transmission groove, a third push rod is arranged on the first push block, a first slide block is arranged on the first push block, a first slide groove matched with the first slide block is arranged on the inner wall of the fourth movable cavity, and a second reset spring is arranged on the first slide block; when the first transmission block is positioned in the first movable cavity, the third fixed block is abutted against the inner wall of the fourth movable cavity to block the second push rod from rotating; when the distance between two groups of roll pairs is adjusted, the first connecting rod is pushed in the first movable cavity, the second transmission block moves in the transmission groove along with the first connecting rod, the second transmission block pushes the first pushing block to move in the fourth movable cavity after being inserted into the transmission groove, the third pushing rod pushes the first connecting plate to move, the third connecting rod and the third fixing block are pulled by the first connecting plate to move, the third fixing block enters the third movable groove, the hand wheel is rotated, the first connecting rod drives the second transmission block to rotate, the second pushing rod rotates along with the second transmission block, the third thread and the fourth thread are matched to push the second pushing rod to extend out of the second movable cavity, and the distance between two groups of roll pairs is adjusted.

An automobile foot pad is made of the odorless regenerated rubber.

The invention has the following advantages: the odorless regenerated rubber raw materials comprise regenerated rubber, natural rubber and butadiene styrene rubber, the regenerated rubber is reused, the environment pollution caused by waste rubber is avoided, resources are reused, the raw materials also comprise sulfated castor oil and tallow benzyl dimethyl ammonium chloride, the aging resistance of the odorless regenerated rubber is improved, and the effects of aging resistance, long service time and environmental protection are achieved.

Drawings

FIG. 1 is a schematic view of the structure of an open type kneader according to the present invention.

FIG. 2 is a right side view of the open type kneading machine of the present invention.

Fig. 3 is a cross-sectional view taken along a-a in fig. 2.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is an enlarged view of fig. 3 at B.

Fig. 6 is a cross-sectional view taken along line B-B of fig. 2.

Fig. 7 is an enlarged view of fig. 6 at C.

Fig. 8 is a cross-sectional view taken along line D-D in fig. 2.

Fig. 9 is an enlarged view of fig. 8 at D.

Fig. 10 is an enlarged view of fig. 9 at E.

FIG. 11 is a front view of the open type kneading machine of the present invention.

Fig. 12 is a cross-sectional view taken along line E-E of fig. 11.

Fig. 13 is an enlarged view of fig. 12 at F.

Fig. 14 is a cross-sectional view taken along F-F in fig. 11.

Fig. 15 is an enlarged view at G in fig. 14.

Fig. 16 is an enlarged view of fig. 14 at H.

Fig. 17 is an enlarged view at I in fig. 16.

Fig. 18 is an enlarged view at J in fig. 16.

Fig. 19 is an enlarged view at K in fig. 16.

Fig. 20 is an enlarged view at L in fig. 16.

Fig. 21 is a cross-sectional view taken along G-G in fig. 11.

Fig. 22 is an enlarged view of fig. 21 at M.

Fig. 23 is a sectional view taken along H-H in fig. 11.

Fig. 24 is an enlarged view of fig. 23 at N.

Fig. 25 is a cross-sectional view taken along line M-M of fig. 11.

Fig. 26 is an enlarged view at O in fig. 25.

Fig. 27 is a cross-sectional view taken along J-J in fig. 11.

Fig. 28 is an enlarged view at P in fig. 27.

Detailed Description

The odorless regenerated rubber comprises, by weight, 1-10 parts of natural rubber, 0.5-5 parts of styrene-butadiene rubber, 20-80 parts of regenerated rubber and 15-30 parts of calcium powder; 5-15 parts of rubber powder; 0.03-1 part of rubber accelerator, 0.1-2 parts of zinc oxide, 0.1-2 parts of stearic acid, 0.1-2 parts of sulfur and 1-5 parts of aromatic oil.

The preparation process of the odorless regenerated rubber comprises

a. Preparing materials, namely adopting an open mixing roll, controlling the mixing roll temperature to be 50-60 ℃ all the time, adjusting the roll distance of the mixing roll to 8m, adding natural rubber, butadiene styrene rubber, reclaimed rubber, calcium powder, rubber powder, zinc oxide, stearic acid and sulfur, mixing for 5 minutes, adding aromatic oil, mixing for 8 minutes, and finally mixing for 1 minute by using a rubber accelerator; secondly, adjusting the roll spacing of the mixing roll to 1.5mm, performing thin pass for 5 times, finally, adjusting the roll spacing of the mixing roll to 8m, uniformly stirring, then discharging sheets, and cooling for 5 hours;

c. a vulcanization process, namely vulcanizing the sheet materials by using a flat vulcanizing machine; wherein the temperature is controlled at 150-180 ℃, the pressure is controlled at 18-25MPa, and the time is controlled at 25 minutes.

As shown in fig. 1 to 28, the open type mixer in step a includes two first mounting plates 1, two receiving plates 2 disposed on the first mounting plates 1, and a mounting table 3 disposed on the other side of the first mounting plates 1, where the two first mounting plates 1 are provided, the receiving plates 2 are disposed between the two first mounting plates 1, two pairs of rollers 4 are disposed on the first mounting plates 1, and a driving motor 34 for driving the rollers 4 to rotate is disposed on the mounting table 3; a first movable groove is formed in the first mounting plate 1, a limiting groove 15 is formed in one side of the first movable groove, a connecting shaft 41 and a first driving wheel 42 are respectively arranged at two ends of the pair roller 4, the connecting shaft 41 penetrates through the first movable groove, and the first driving wheel 42 is arranged in the limiting groove; a second fixed block 7 is arranged in the first movable groove, a first through cavity is arranged on the second fixed block 7, a first push rod 71 is arranged in the first through cavity, a second push rod 72 is arranged in the first push rod 71, and a hand wheel 76 capable of respectively pushing the first push rod 71 and the second push rod 72 to move is arranged at one end of the first push rod 71; after the rubber raw materials and the additives are put on the pair rollers 4, the driving motor 34 drives the pair rollers 4 to rotate, and the two groups of pair rollers 4 rotate relatively to carry out mixing operation; after the first-step mixing is finished, the hand wheel 76 is rotated, the hand wheel 76 pushes the first push rod 71 to move, the first push rod 71 pushes the connecting shaft 41 to move in the first movable groove, the distance between the two pairs of rollers 4 is changed, then the hand wheel 76 is operated to push the second push rod 72 to move, the second push rod 72 continues to push the connecting shaft 41 to move, the distance between the two pairs of rollers 4 is adjusted to be a required value, the driving motor 34 continues to drive the pairs of rollers 4 to rotate, and the thin-passing step is carried out; after the thin sheet passing step is finished, the handwheel 76 is rotated reversely, the first push rod 71 moves back, the distance between the two pairs of rollers 4 is recovered, and the driving motor 34 drives the rollers 4 to rotate again, so that the final sheet discharging operation is finished.

The mixing roll can be continuously adjusted according to actual needs, so that the distance between the pair rollers on the mixing roll meets the requirements of various different working conditions, the rubber raw materials can be conveniently subjected to various treatments, and the mixing effect of the rubber raw materials is improved; the first push rod and the second push rod can be respectively controlled by rotating the hand wheel, and the pair rollers can be respectively roughly adjusted and finely adjusted by the first push rod and the second push rod, so that the distance between the two groups of pair rollers can be adjusted to a required value, the adjustment precision of the pair rollers is effectively improved, the practicability of the mixing mill is ensured, and the mixing effect of rubber raw materials is further ensured; under the arrangement of the second fixed block, when the pair of rollers are maintained, the second fixed block is detached from the first movable groove, and then the pair of rollers can be directly taken out from the first movable groove, so that the pair of rollers can be maintained, and the maintenance difficulty of the pair of rollers is reduced; the first driving wheel is matched with the limiting groove to limit the pair of rollers, and the pair of rollers are fixed on the first mounting plate, so that the use reliability of the mixing roll is ensured; the distance between the pair of rollers is adjusted by rotating the hand wheel, so that the distance adjustment operation of the pair of rollers is simpler, a complex transmission mechanism is not required to be arranged, the cost of the mixing roll is reduced, and the market of the mixing roll is widened.

As shown in fig. 18, a connecting pipe 74 is arranged in the first through cavity, a first movable cavity is arranged on the first push rod 71, the connecting pipe 74 is arranged in the first movable cavity in a penetrating manner, a sleeve ring 73 is arranged at one end of the connecting pipe 74, a connecting groove matched with the connecting pipe 74 is arranged on the sleeve ring 73, and the sleeve ring is rotatably connected to the connecting pipe under the mutual matching of the connecting groove and the connecting pipe; a first thread is arranged on the side wall of the lantern ring 73, a second thread matched with the first thread is arranged on the inner wall of the first movable cavity, a first connecting rod 75 penetrates through the first through cavity, the hand wheel 76 is arranged at one end of the first connecting rod 75, and a first transmission block 751 matched with the lantern ring 73 is arranged on the first connecting rod 75; when the distance between the two pairs of rollers 4 is adjusted, the first connecting rod 75 is pulled outwards, the first transmission block 751 moves into the lantern ring 73 along with the first connecting rod 75, the first transmission block 751 and the lantern ring 73 form transmission fit, the hand wheel 76 is rotated, the hand wheel 76 drives the transmission block 751 to rotate, when the lantern ring 73 rotates, the first thread and the second thread are matched to push the first push rod 71 to move forwards, and the first push rod 71 pushes the connecting shaft 41 to move, so that the distance between the two pairs of rollers 4 is roughly adjusted.

As shown in fig. 17, a second movable cavity is arranged on the first push rod 71, the second push rod 72 is arranged in the second movable cavity, a second through cavity is arranged on the side wall of the second movable cavity, a second connecting rod 726 is arranged at one end of the second push rod 72, the second connecting rod 726 is arranged in the second through cavity in a penetrating manner, a third thread is arranged on the second connecting rod 726, a fourth thread matched with the third thread is arranged on the inner wall of the second through cavity, a transmission groove 727 is arranged on the second connecting rod 726, a second transmission block 753 matched with the transmission groove 727 is arranged on the first transmission block 751, a plurality of rotation stopping grooves 7271 are arranged on the inner wall of the transmission groove, a plurality of rotation stopping blocks 754 matched with the rotation stopping grooves are arranged on the second transmission block, and the transmission effect of the second transmission block and the transmission groove is ensured under the mutual matching of the rotation stopping grooves and the rotation stopping blocks; after the rough adjustment of the distance between the pair of rollers 4 is completed, the first connecting rod 75 is pushed into the first movable cavity, the first transmission block 751 moves towards the bottom of the first movable cavity along with the first connecting rod 75, the second transmission block 753 is inserted into the transmission groove 727, the first connecting rod 75 and the second connecting rod 726 form transmission fit, the hand wheel 76 is rotated, the first connecting rod 75 drives the second connecting rod 726 to rotate, the third thread and the fourth thread cooperate to push the second connecting rod 726 to move forwards, the second push rod 72 pushes the connecting shaft 41 to move continuously, and the fine adjustment of the pair of rollers 4 is performed.

The movement of the first push rod and the second push rod can be respectively controlled by moving the first connecting rod, so that the distance between the pair rollers can be adjusted to a required value, and the adjustment precision of the distance between the pair rollers can be improved, so that the rubber raw material can be mixed; after the first connecting rod is moved, the position of the roller pair can be adjusted only by rotating the hand wheel, so that the mixing roll is more convenient to operate.

As shown in fig. 10, a second movable slot is formed in the collar 73, a first fixed block 731 is arranged in the second movable slot, the first fixed block 731 is made of rubber, a supporting piece 732 for pushing the first fixed block 731 to move out of the second movable slot is arranged in the second movable slot, the supporting piece is an arc-shaped metal piece, and a first supporting plate 734 matched with the supporting piece 732 is arranged on the inner wall of the second movable slot; a third movable cavity is arranged at the bottom of the second movable groove, a first push plate 735 is arranged in the third movable cavity, a first return spring 737 is arranged on the first push plate 735, a connecting rope 736 is arranged on the first push plate 735, the other end of the connecting rope 736 is fixedly connected to the first fixed block 731, and a through groove 733 through which the connecting rope 736 passes is arranged on the supporting sheet 732; the first transmission block 751 is provided with a second push plate 752; when the first transmission block 751 is in the first movable cavity, the first fixed block 731 abuts against the inner wall of the first movable cavity to block the first push rod 71 from rotating; when the distance between the two pairs of rollers 4 is adjusted, the first connecting rod 75 is pulled outwards, the first connecting rod 75 drives the first transmission block 751 to move, the second push plate 452 moves to one side of the lantern ring 73, the second push plate 452 pushes the first push plate 735 to move towards the third movable cavity, the first push plate 735 pulls the connecting rope 736 to move, the connecting rope 736 pulls the first fixing block 731 to move, the first fixing block 731 moves towards the inside of the second movable groove, the first fixing block abuts against the supporting sheet to deform the supporting sheet, and the first supporting sheet controls the deformation of the supporting sheet to avoid the first fixing block from excessively descending; the first transmission block 751 enters the lantern ring 73 to form transmission fit with the lantern ring 73, the hand wheel 76 is rotated, the first transmission block 751 rotates to drive the lantern ring 73 to rotate, the first thread and the second thread are matched to push the first push rod 71 to move, and the distance between the two pairs of rollers 4 is adjusted; after the distance between the pair rollers is adjusted, a first connecting rod is pushed into the first movable cavity, the first transmission block extends out of the lantern ring, the first reset spring pushes the first push plate to move towards the outer side of the third movable cavity, the supporting sheet resets under the action of elasticity, the first fixing block is pushed to move towards the outside of the second movable groove, the first fixing block is enabled to abut against the inner wall of the first movable cavity, and the lantern ring is fixed in the first movable cavity; utilize the rubber material of first fixed block, produce deformation when making first fixed block support on first activity intracavity wall, first fixed block inlays in the clearance of second screw thread, promotes the fixed effect to the lantern ring and first push rod, thereby produces vibrations when avoiding only of pair roller and makes lantern ring or first push rod produce vibrations and make first push rod remove, guarantees the reliability that mixing roll used.

As shown in fig. 17, a fourth movable cavity is formed on the second push rod 72, a third movable groove is formed on the inner wall of the fourth movable cavity, a third fixed block 721 is arranged in the third movable groove, a first connecting plate 724 is arranged in the fourth movable cavity, the third fixed block 721 is connected to the first connecting plate 724 through a third connecting rod 725, and the third connecting rod 725 is made of an elastic material; the transmission groove is communicated with the fourth movable cavity, a first push block 728 is arranged in the fourth movable cavity, the first push block 728 is arranged in the transmission groove 727 in a penetrating mode, a third push rod 7281 is arranged on the first push block 728, a first sliding block 7282 is arranged on the first push block 728, a first sliding groove 729 matched with the first sliding block 7282 is arranged on the inner wall of the fourth movable cavity, and a second return spring 7283 is arranged on the first sliding block 7282; when the first transmission block 751 is in the first movable cavity, the third fixed block 721 abuts against the inner wall of the fourth movable cavity to block the second push rod 72 from rotating; when the distance between two pairs of rollers 4 is adjusted, the first connecting rod 75 is pushed into the first movable cavity, the second transmission block 753 moves into the transmission groove along with the first connecting rod 75, the second transmission block 753 is inserted into the transmission groove 727 to push the first pushing block 728 to move into the fourth movable cavity, the third pushing rod 7281 pushes the first connecting plate 724 to move, the first connecting plate 724 pulls the third connecting rod 725 and the third fixing block 721 to move, the third fixing block 721 enters the third movable cavity, the hand wheel 76 is rotated, the first connecting rod 75 drives the second transmission block 753 to rotate, the second pushing rod 72 rotates along with the second transmission block 753, the third screw thread and the fourth screw thread are matched to push the second pushing rod 72 to extend out of the second movable cavity, and the distance between two pairs of rollers 4 is adjusted.

As shown in fig. 7, a second sliding block 722 is arranged on the side wall of the third fixed block, a second sliding groove matched with the second sliding block is arranged on the inner wall of the third movable groove, a fixed spring 723 is arranged on the second sliding block, the third fixed block always tends to move towards the outer side of the third movable groove under the setting of the fixed spring, so that the third fixed block is abutted against the inner wall of the second movable cavity, a rubber pad structure can be arranged at one end of the third fixed block, and the second push rod is fixed by the friction force between the third fixed block and the inner wall of the second movable cavity, so that the second push rod is prevented from shaking to change the position of the second push rod when the pair rollers are used; after the adjustment of the roll pair position is completed, the first connecting rod is pulled outwards, the second transmission block is separated from the transmission groove, the second reset spring pushes the first pushing block to move towards the transmission groove, the third pushing rod does not push the first connecting plate any more, the fixing spring pushes the third fixing block to move towards the outer side of the third movable groove, and the third fixing block pulls the third connecting rod to move when moving, so that the first connecting plate moves to the initial state, and the second pushing rod is fixed by the third fixing block.

As shown in fig. 18, a first limit ring 711 and a second limit ring 712 are arranged on the inner wall of the first movable cavity, the first limit ring and the second limit ring are made of rubber, the first limit ring and the second limit ring are adjacently arranged, and a gap between the first limit ring and the second limit ring corresponds to the thickness of the second push plate; after the distance between the pair rollers is adjusted, the first transmission block is pushed into the first movable cavity, the second push plate moves between the first limiting ring and the second limiting ring, and the first limiting ring and the second limiting ring are used for fixing the second push plate, so that the position of the first connecting rod is limited, and the phenomenon that the pair rollers are influenced by mistakenly touching the hand rollers when the mixing roll is used is avoided; under first spacing ring and second spacing ring set up, make the second push pedal produce resistance when removing between first spacing ring and the second spacing ring and feel to the feedback user, in order to inform the user that the second push pedal removes to the assigned position, increase the convenient to use nature of mixing roll, prevent to cause the influence because of the mistake touches the position to the pair roller.

As shown in fig. 16 and 19, a fifth movable cavity is formed on the first connecting rod 75, a fourth connecting rod 761 is inserted into the fifth movable cavity, the hand wheel 76 is disposed at one end of the fourth connecting rod 761, a sixth movable chamber is disposed on the fourth connecting rod 761, a fourth movable groove is arranged on the side wall of the sixth movable cavity, a fourth fixed block 765 is arranged in the fourth movable groove, a second connecting plate 762 is arranged in the sixth movable cavity, a third return spring is arranged on the second connecting plate 762 and is arranged on the side wall of the second connecting plate, the other end of the third return spring is fixedly connected on the inner wall of the sixth movable cavity, a support rod 763 is movably connected to the second connecting plate 762, the support rod 763 is disposed at one side of the fourth fixing block 765, a first support spring 764 is arranged on the support rod 765, and a third push plate 766 is arranged on the second connecting plate 762; a fourth push rod 77 penetrates through the sixth movable cavity, and a fourth push plate 771 is arranged at one end of the fourth push rod 77; when the distance between the two pairs of rollers 4 is adjusted, the fourth push rod 77 is pushed into the sixth movable cavity, the fourth push rod 77 pushes the third push plate 766 to move, the second connecting plate 762 moves along with the third push plate 766, the second connecting plate 762 drives the supporting rod 763 to rotate when moving, the supporting rod 763 pulls the fourth fixed block 765 to move into the fourth movable groove, the fourth fixed block 765 enters the sixth movable cavity, the fourth connecting rod 77 is pulled outwards, the fourth connecting rod 77 extends out of the fifth movable cavity, the length of the first connecting rod 75 is prolonged, the fourth push plate 771 is released, the first connecting rod 75 is pulled outwards or retreats inwards as required, the first connecting rod 75 is selectively in transmission fit with the lantern ring 73 or the second connecting rod 726, and the distance between the two pairs of rollers 4 is adjusted.

As shown in fig. 16 and 20, a third sliding block 772 is disposed on the side wall of the fourth push rod, a third sliding slot matched with the third sliding block is disposed on the inner wall of the sixth movable cavity, and a fourth return spring 773 is disposed on the third sliding block; after the position of the fourth connecting rod is adjusted, the fourth push plate is released, a fourth reset spring pushes a fourth push rod to move towards the outer side of a sixth movable cavity, the fourth push rod does not extrude the third push plate any more, a third reset spring pushes a second connecting plate to move towards the outlet of the sixth movable cavity, the supporting rod moves to one side of a fourth fixed block along with the second connecting plate, the first supporting spring pushes the supporting rod to be in a spreading state, the supporting rod is used for providing supporting force for the fourth fixed block, the fourth fixed block extends out from a fourth movable groove, the fourth fixed block abuts against the inner wall of the fifth movable cavity, the fourth connecting rod is fixed under the action of the fourth fixed block and is located at the current position, and the first connecting rod is enabled to have enough length to move in the first movable cavity so as to adjust the roller spacing by using a hand wheel.

As shown in fig. 15, a fifth movable groove is formed in the first movable groove, a first mounting block 6 is arranged in the fifth movable groove, a sixth movable groove 62 is formed in the first mounting block, a seventh movable groove 63 is formed in the top of the sixth movable groove, a movable plate 65 is arranged in the seventh movable groove, a connecting spring 651 is arranged on the movable plate, a fifth connecting rod 641 is movably connected to the bottom of the movable plate, a first pushing block 64 is arranged at the bottom of the fifth connecting rod, the first pushing block is movably connected to one end of the fifth connecting rod, the first pushing block is of an arc-shaped structure, two groups of fifth connecting rods are arranged at the bottom of the movable plate, a third supporting spring 642 is arranged between the two groups of fifth connecting rods, the two groups of first pushing blocks respectively abut against the connecting shafts of the two groups of paired rollers, the two groups of fifth connecting rods tend to separate from each other under the action of the third supporting spring; when the distance between the two pairs of rollers is adjusted, the first connecting rod is pulled outwards to enable the first connecting rod Y to be in transmission fit with the lantern ring, the hand wheel is rotated, the first push rod pushes the connecting shaft to move, the connecting shaft pushes the first push block to move when moving, the first push block drives the fifth connecting rod to rotate, and the fifth connecting rod pushes the movable plate to move in the seventh movable groove when rotating, so that the second push block has enough space to move and is matched with the first push rod to provide a fixing effect for the rollers; the second push block rotates around the connecting point when moving, so that the second push block is always attached to the side wall of the connecting shaft, and the contact effect of the second push block and the connecting shaft is ensured; when the distance between the two pairs of rollers is adjusted back, the hand wheel is rotated reversely, the first push rod moves towards the outer side of the first movable groove when the hand wheel drives the lantern ring to rotate, the connecting spring pushes the movable plate to move downwards, the second push block pushes the connecting shaft to move, the distance between the two pairs of rollers is increased, and the adjustment of the distance between the two pairs of rollers is completed; the horizontal movement of the pair rollers is converted into the longitudinal movement of the movable plate, so that the two groups of pair rollers can be close to each other and have smaller distance, the adjustable range between the pair rollers is enlarged, and the application range of the mixing roll is enlarged.

As shown in fig. 13 and 15, eighth moving grooves 14 are respectively formed on two sides of the fifth moving groove, a moving block 11 is arranged in each eighth moving groove, a fourth sliding block 111 is arranged on the side wall of each moving block, a fourth sliding groove 141 matched with the fourth sliding block is arranged on the inner wall of each eighth moving groove, a third pushing block 112 is arranged on each moving block, a fourth pushing block 61 is arranged on each first mounting block, and a through groove is formed in each fourth pushing block; a fifth sliding groove 13 is formed in one side of the fifth movable groove, a fifth sliding block 122 is arranged in the fifth sliding groove, a third connecting plate 12 is arranged on the fifth sliding block, and a limiting rod 121 is arranged on the third connecting plate; a second supporting plate is arranged on the inner wall of the fifth movable groove; the second supporting plate limits the maximum descending distance of the first mounting block; when the pair roller is installed, the fixed block is taken out of the first movable groove, the movable block is pushed to one end of the eighth movable groove, the movable block moves to one end of the eighth movable groove, the fourth push block is pulled upwards, the fourth push block drives the first installation block to move upwards, the first installation block is lifted from the fifth movable groove, the second push block enters the fifth movable groove, the connecting roller normally moves in the first movable groove, and the pair roller is installed on the first installation plate; after the pair rollers are installed, the first installation block is pushed into the fifth movable groove, the movable block is pushed towards the direction of the fifth movable groove, the movable block moves to the top of the first installation block to limit the first installation block, and the first installation block is prevented from being separated from the fifth movable groove; and the third connecting plate is pushed towards the direction of the fifth movable groove and drives the limiting rod to move to one side of the third pushing block, so that the movable block is fixed, and the movable block is stably positioned at the top of the first mounting block so as to be fixed.

As shown in fig. 5, 22 and 26, a second mounting plate 33 is arranged on the mounting table, a sixth chute 331 is arranged on the second mounting plate, a sixth slide block is arranged in the sixth chute, a third support plate 35 is arranged on the sixth slide block, the driving motor is arranged on the third support plate, a clamping jaw 351 for fixing the driving motor is arranged on the third support plate, and the structure of the clamping jaw is the same as that of the clamp in the prior art; the mounting plate is provided with a second mounting block 39, the second mounting block is provided with a cavity 391, the second mounting block is internally provided with a first rotating roller 393 and a second rotating roller 395, the first rotating roller and the second rotating roller are respectively provided with two groups, a first transmission belt 394 is wound on the two groups of first rotating rollers, a second transmission belt 396 is wound on the two groups of second rotating rollers, one end of the first rotating roller is provided with a second transmission wheel 3931, one end of the second rotating roller is provided with a third transmission wheel 3951 matched with the second transmission wheel, and the rotation direction of the first transmission belt is opposite to that of the second transmission belt under the arrangement of the second transmission wheel and the third transmission wheel; a connecting box 392 is arranged on the side wall of the second mounting block, a transmission shaft is arranged on the side wall of the first rotating roller, the transmission shaft penetrates through the connecting box, a fourth transmission wheel 397 is arranged at one end of the transmission shaft, a fifth transmission wheel 398 is further arranged in the connecting box, and the fifth transmission wheel and the fourth transmission wheel are connected through a synchronous belt 399; a first supporting rod 37 is arranged on the mounting table, one end of the second mounting plate is rotatably connected to the first supporting rod, a second supporting rod 38 is arranged at the bottom of the second mounting plate, a seventh sliding block is arranged at the bottom of the second supporting rod, and a seventh sliding groove 36 matched with the seventh sliding block is arranged on the mounting table; be equipped with install bin 31 on the mount table, be equipped with case lid 32 on the install bin, the second mounting panel is located in the install bin, and case lid sliding connection is on the install bin.

The first mounting plate is provided with a transmission groove communicated with the limiting groove, the second mounting plate penetrates through the transmission groove, the second mounting block is positioned at the bottom of the limiting groove, when the pair roller is mounted, the second supporting rod is pushed to one end of the seventh sliding groove and moves towards the first supporting rod, one end of the second mounting plate falls off after losing the support and inclines, the second mounting block moves downwards along with one end of the second mounting plate, the first transmission belt and the second transmission belt move out of the limiting groove, the first transmission wheel is prevented from contacting with the transmission belt when the pair roller is mounted, and the pair roller can be naturally mounted; after the pair rollers are installed, the second support rod is pushed in the direction away from the first support rod, the second support rod moves to the other end of the second mounting plate to provide supporting force for the other end of the second mounting plate, the second mounting plate is lifted to be in a horizontal state, the second mounting block is lifted along with the second mounting plate, the first transmission belt and the second transmission belt are respectively arranged at the bottoms of the two groups of pair rollers, the driving motor drives the first transmission belt and the second transmission belt to rotate and respectively drive the two groups of pair rollers to rotate, so that the two groups of pair rollers rotate relatively to extrude the raw materials, and the mixing effect of the raw materials is improved; when the driving motor is installed, the box cover is opened, the third supporting plate is pushed towards the direction far away from the second installation block, the driving motor is placed on the third supporting plate, the clamping jaw driving motor is fixed on the third supporting plate, the third supporting plate is pushed towards the direction of the second installation block, the driving motor moves towards the direction of the second installation block, the output shaft of the driving motor is inserted into the fifth driving wheel to provide power for the fifth driving wheel, so that the driving motor is used for driving the pair rollers to rotate, and stable power support is provided for the pair rollers.

As shown in fig. 5, a tenth movable groove is formed on the second mounting plate, a second supporting spring is arranged on the tenth movable groove, and a second limiting block 332 is arranged on the second supporting spring; the tenth activity groove is located sixth spout one side, and back in the fifth drive wheel was inserted to the driving motor output shaft when the third backup pad drove driving motor and removed, the third backup pad removed to tenth activity groove one side, and the second stopper stretches out from the tenth activity inslot, and the second stopper is in third backup pad one side, and is fixed with the third backup pad under the effect of second stopper, avoids the sixth slider to remove in the sixth spout, guarantees driving motor and fifth drive wheel's cooperation effect.

As shown in fig. 4, 6, and 28, a fourth support plate 55 is disposed on the first mounting plate, a fourth connecting plate 5 is disposed on the fourth support plate, a mounting groove is disposed on the fourth connecting plate, a guide shaft 51 is disposed in the mounting groove, two ends of the guide shaft are respectively disposed in the mounting grooves of the fourth connecting plates of the two first mounting plates, when the guide shaft is stretched over the pair rollers, a guide sleeve 52 is disposed on the guide shaft, a fifth connecting plate 54 is disposed at the bottom of the guide sleeve, a fifth push plate 53 is disposed on the fifth connecting plate, a ninth slider 531 is disposed on the fifth push plate, a ninth sliding groove matched with the ninth slider is disposed on the fifth connecting plate, an opening 541 is further disposed on the fifth connecting plate, a ninth moving groove 542 is disposed on an inner wall of the opening, a limiting spring is disposed in the ninth moving groove, and a first; when the fifth push plate is installed, the first limiting block is pushed into the ninth movable groove, so that the opening is in an open state, the ninth sliding block is directly pushed into the ninth sliding groove, after the ninth sliding block completely enters the ninth sliding groove, the first limiting block extends out of the ninth movable groove under the action of a limiting spring, the opening is closed by the first limiting block, the first limiting block is located at one end of the ninth sliding groove, the fifth push plate is fixed and fixed on the fifth connecting plate, and the fifth push plate is used for gathering materials; utilize mutually supporting of ninth slider and ninth spout under, reduce the degree of difficulty of being connected of fifth push pedal and fifth connecting plate, need not to change whole fifth connecting plate, only need pull down the fifth push pedal change can, very big reduction fifth push pedal changes the degree of difficulty to do the maintenance clearance to fifth push pedal surface.

As shown in fig. 13, a fifth fixed block 56 is arranged in the mounting groove, a tenth sliding block is arranged on the fifth fixed block, and a tenth sliding groove matched with the tenth sliding block is arranged on the inner wall of the mounting groove; an eleventh sliding groove 58 is formed in one side of the mounting groove, an eleventh sliding block is arranged in the eleventh sliding groove, and a fixing plate 57 is arranged on the eleventh sliding block; after the guiding axle was packed into in the mounting groove, put into the mounting groove with the fifth fixed block, the fifth fixed block presses on the guiding axle, and toward mounting groove direction promotion fixed plate, the fixed plate removes to fifth fixed block top, fixes the fifth fixed block in the mounting groove, promotes the connection effect of guiding axle and mounting groove.

As shown in fig. 1 and 3, a baffle 21 is arranged on the side wall of the receiving plate, a receiving plate 22 is arranged on the receiving plate, a twelfth sliding block 221 is arranged at the bottom of the receiving plate, a twelfth sliding groove matched with the twelfth sliding block is formed in the receiving plate, the receiving plate is used for collecting mixed raw materials, the mounting difficulty of the receiving plate is reduced under the mutual matching of the twelfth sliding block and the twelfth sliding groove, and the receiving plate can be conveniently detached to be maintained and cleaned.

The application also comprises the automobile foot pad made of the odorless regenerated rubber.

Claims

1. An odorless regenerated rubber, which is characterized in that: the raw materials comprise the following components in parts by weight: 1-10 parts of natural rubber, 0.5-5 parts of butadiene styrene rubber, 20-80 parts of regenerated rubber and 15-30 parts of calcium powder; 5-15 parts of rubber powder; 0.03-1 part of rubber accelerator, 0.1-2 parts of zinc oxide, 0.1-2 parts of stearic acid, 0.1-2 parts of sulfur and 1-5 parts of aromatic oil;

the open type mixing mill in the step a comprises first mounting plates (1), bearing plates (2) arranged on the first mounting plates (1) and a mounting table (3) arranged on the other side of the first mounting plates (1), wherein the first mounting plates (1) are divided into two groups, the bearing plates (2) are arranged between the two groups of first mounting plates (1), two groups of double rollers (4) are arranged on the first mounting plates (1), and a driving motor (34) for driving the double rollers (4) to rotate is arranged on the mounting table (3); a first movable groove is formed in the first mounting plate (1), a limiting groove (15) is formed in one side of the first movable groove, a connecting shaft (41) and a first driving wheel (42) are respectively arranged at two ends of the pair roller (4), the connecting shaft (41) penetrates through the first movable groove, and the first driving wheel (42) is arranged in the limiting groove (15); a second fixed block (7) is arranged in the first movable groove, a first through cavity is formed in the second fixed block (7), a first push rod (71) is arranged in the first through cavity, a second push rod (72) is arranged in the first push rod (71), and a hand wheel (76) capable of respectively pushing the first push rod (71) and the second push rod (72) to move is arranged at one end of the first push rod (71); after rubber raw materials and additives are placed on the pair rollers (4), the driving motor (34) drives the pair rollers (4) to rotate, and the two groups of pair rollers (4) carry out mixing operation after relatively rotating; after the first-step mixing is finished, rotating a hand wheel (76), wherein the hand wheel (76) pushes a first push rod (71) to move, the first push rod (71) pushes a connecting shaft (41) to move in a first movable groove, the distance between two pairs of rollers (4) is changed, then operating the hand wheel (76) to push a second push rod (72) to move, the second push rod (72) continues to push the connecting shaft (41) to move, the distance between the two pairs of rollers (4) is adjusted to be a required value, and a driving motor (34) continues to drive the pairs of rollers (4) to rotate to perform a thin-pass step; after the thin passing step is finished, the hand wheel (76) is rotated reversely, the first push rod (71) moves back, the distance between the two pairs of rollers (4) is recovered, the driving motor (34) drives the pair of rollers (4) to rotate again, and the final sheet discharging operation is finished.

2. The odorless regenerated rubber as claimed in claim 1, wherein: the temperature of the mixing mill in the step a is 50-60 ℃.

3. The odorless regenerated rubber as claimed in claim 1, wherein: and b, adding natural rubber, butadiene styrene rubber, reclaimed rubber, calcium powder, rubber powder, zinc oxide, stearic acid and sulfur in the step a, mixing for 5min, and adding aromatic oil, mixing for 8 min.

4. The odorless regenerated rubber as claimed in claim 1, wherein: the vulcanization temperature in the step c is 150 ℃ and 180 ℃, and the pressure is 18-25 MPa.

5. The process for preparing an odorless regenerated rubber according to claim 1, wherein: the vulcanizing time in the step c is 25 min.

6. The odorless regenerated rubber as claimed in claim 1, wherein: a connecting pipe (74) is arranged in the first through cavity, a first movable cavity is arranged on the first push rod (71), the connecting pipe (74) penetrates through the first movable cavity, a sleeve ring (73) is arranged at one end of the connecting pipe (74), a connecting groove matched with the connecting pipe (74) is formed in the sleeve ring (73), first threads are arranged on the side wall of the sleeve ring (73), second threads matched with the first threads are arranged on the inner wall of the first movable cavity, a first connecting rod (75) penetrates through the first through cavity, a hand wheel (76) is arranged at one end of the first connecting rod (75), and a first transmission block (751) matched with the sleeve ring (73) is arranged on the first connecting rod (75); when the distance between two pairs of rollers (4) is adjusted, the first connecting rod (75) is pulled outwards, the first transmission block (751) moves into the lantern ring (73) along with the first connecting rod (75), the first transmission block (751) is in transmission fit with the lantern ring (73), the hand wheel (76) is rotated, the hand wheel (76) drives the transmission block (751) to rotate, when the lantern ring (73) rotates, the first thread is matched with the second thread to push the first push rod (71) to move forwards, and the first push rod (71) pushes the connecting shaft (41) to move to roughly adjust the distance between the two pairs of rollers (4).

7. An odorless regenerated rubber as defined in claim 6, wherein: a second movable cavity is arranged on the first push rod (71), the second push rod (72) is arranged in the second movable cavity, a second through cavity is arranged on the side wall of the second movable cavity, a second connecting rod (726) is arranged at one end of the second push rod (72), the second connecting rod (726) penetrates through the second through cavity, a third thread is arranged on the second connecting rod (726), a fourth thread matched with the third thread is arranged on the inner wall of the second through cavity, a transmission groove (727) is arranged on the second connecting rod (726), and a second transmission block (753) matched with the transmission groove (727) is arranged on the first transmission block (751); after the rough adjustment of the distance between the pair of rollers (4) is completed, a first connecting rod (75) is pushed into a first movable cavity, a first transmission block (751) moves towards the bottom of the first movable cavity along with the first connecting rod (75), a second transmission block (753) is inserted into a transmission groove (727), the first connecting rod (75) is in transmission fit with a second connecting rod (726), a hand wheel (76) is rotated, the first connecting rod (75) drives the second connecting rod (726) to rotate, a third thread is matched with a fourth thread to push the second connecting rod (726) to move forwards, the second push rod (72) pushes a connecting shaft (41) to move continuously, and the pair of rollers (4) is finely adjusted.

8. An odorless regenerated rubber as defined in claim 6, wherein: a second movable groove is formed in the lantern ring (73), a first fixed block (731) is arranged in the second movable groove, the first fixed block (731) is made of elastic materials, a supporting piece (732) used for pushing the first fixed block (731) to move towards the outside of the second movable groove is arranged in the second movable groove, and a first supporting plate (734) matched with the supporting piece (732) is arranged on the inner wall of the second movable groove; a third movable cavity is arranged at the bottom of the second movable groove, a first push plate (735) is arranged in the third movable cavity, a first reset spring (737) is arranged on the first push plate (735), a connecting rope (736) is arranged on the first push plate (735), the other end of the connecting rope (736) is fixedly connected to the first fixed block (731), and a through groove (733) for the connecting rope (736) to pass through is arranged on the supporting sheet (732); a second push plate (752) is arranged on the first transmission block (751); when the first transmission block (751) is positioned in the first movable cavity, the first fixed block (731) is abutted against the inner wall of the first movable cavity to block the first push rod (71) from rotating; when adjusting the distance between two sets of pairs of rollers (4), toward pulling first connecting rod (75), first connecting rod (75) drive first drive block (751) and move, second push pedal (452) move to lantern ring (73) one side, second push pedal (452) promote first push pedal (735) and move toward the third movable cavity, first push pedal (735) pulling is connected rope (736) and is moved, connect rope (736) pulling first fixed block (731) and move, first fixed block (731) move toward the inside of second movable slot, first drive block (751) enter lantern ring (73) in and form transmission fit with lantern ring (73), hand wheel (76) is rotated, first drive block (751) rotate and drive lantern ring (73) and rotate, first screw thread and second screw thread cooperate and promote first push rod (71) and move, adjust the distance between two sets of pairs of rollers (4).

9. An odorless regenerated rubber according to claim 7, wherein: a fourth movable cavity is arranged on the second push rod (72), a third movable groove is arranged on the inner wall of the fourth movable cavity, a third fixed block (721) is arranged in the third movable groove, a first connecting plate (724) is arranged in the fourth movable cavity, the third fixed block (721) is connected to the first connecting plate (724) through a third connecting rod (725), and the third connecting rod (725) is made of elastic materials; the transmission groove is communicated with the fourth movable cavity, a first push block (728) is arranged in the fourth movable cavity, the first push block (728) penetrates through the transmission groove (727), a third push rod (7281) is arranged on the first push block (728), a first sliding block (7282) is arranged on the first push block (728), a first sliding groove (729) matched with the first sliding block (7282) is formed in the inner wall of the fourth movable cavity, and a second return spring (7283) is arranged on the first sliding block (7282); when the first transmission block (751) is positioned in the first movable cavity, the third fixed block (721) is abutted against the inner wall of the fourth movable cavity to block the second push rod (72) from rotating; when the distance between two groups of rollers (4) is adjusted, a first connecting rod (75) is pushed into a first movable cavity, a second transmission block (753) moves along with the first connecting rod (75) into a transmission groove, the second transmission block (753) is inserted into the transmission groove (727) and then pushes a first push block (728) to move into a fourth movable cavity, a third push rod (7281) pushes a first connecting plate (724) to move, the first connecting plate (724) pulls a third connecting rod (725) and a third fixed block (721) to move, the third fixed block (721) enters a third movable groove, a hand wheel (76) is rotated, the first connecting rod (75) drives the second transmission block (753) to rotate, the second push rod (72) rotates along with the second transmission block (753), the third thread and the fourth thread are matched to push the second push rod (72) to extend out of the second movable cavity, and the distance between the two groups of rollers (4) is adjusted.

10. An automobile foot mat is characterized in that: is produced by using the odorless regenerated rubber as defined in claim 1.