Rubber plasticizing apparatus and plasticizing method

Abstract

The application relates to the field of rubber processing, and discloses a rubber plasticating equipment and a plasticating method thereof, wherein the equipment comprises a box body and a cover shell fixedly installed on the box body; two processing assemblies for extruding raw materials are arranged between the box body and the cover shell; a moving assembly for scraping the raw materials is arranged on the processing assemblies; and a control assembly for driving the processing assemblies to rotate and corresponding to the moving assembly is arranged in the cover shell. Through cooperation between the processing assemblies, the control assembly and the moving assembly, the raw materials on the processing assemblies can be quickly and completely scraped, the scraped raw materials are transferred to another processing assembly to be extruded again, the raw materials can be fully utilized, and the extrusion effect is ensured.

Description

Technical Field

[0001] This invention relates to the field of rubber processing technology, and in particular to a rubber plasticizing equipment and its plasticizing method. Background Technology

[0002] Plasticizing refers to the process of reducing the molecular weight and viscosity of raw rubber using mechanical or chemical methods to improve its plasticity and achieve suitable flowability to meet the further processing requirements of mixing and molding. During plasticizing, two pressure rollers are often used to mechanically break down the raw material, causing the macromolecules to break down under strong mechanical forces.

[0003] For example, Chinese Patent Publication No. CN212554561U discloses a plasticizing machine for processing rubber product raw materials, relating to the field of plasticizing technology for rubber product raw materials. This plasticizing machine includes two mounting plates, which are fixedly connected by four fixing rods. A pressure roller A is positioned between the two mounting plates, with both ends of roller A rotatably penetrating the adjacent surfaces of the two mounting plates. A pressure roller B is positioned to the right of roller A between the two mounting plates, with both rollers A and B located between the four fixing rods. By incorporating threaded rods, adjusting U-shaped plates, sliders, compensating springs, and adjusting blocks, the distance between rollers A and B is altered.

[0004] This application uses two scrapers to scrape the material off the pressure roller. During use, the scrapers are always in frictional contact with the pressure roller, which causes significant damage to both the scrapers and the pressure roller. Furthermore, the scraped material accumulates on the scrapers and cannot be fully utilized, thus limiting its application.

[0005] Therefore, it is necessary to provide a rubber plasticizing equipment and a plasticizing method to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a rubber plasticizing equipment and a plasticizing method thereof to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, a rubber plasticizing equipment and plasticizing method are designed that can completely scrape off the raw material from the pressure roller and allow it to remain on the pressure roller after scraping, thereby enabling continued processing and ensuring processing quality.

[0008] Based on the above ideas, the present invention provides the following technical solution: a rubber plasticizing equipment, comprising a housing and a cover fixedly installed on the housing, wherein two processing components for extruding raw materials are jointly arranged between the housing and the cover, and a moving component for scraping raw materials is provided on the processing components, and a control component for driving the processing components to rotate and corresponding to the position of the moving component is provided inside the cover; activating the control component can cause one of the processing components to rotate while the other processing component remains stationary, and can cause the moving component on the stationary processing component to move out relative to it, and the moved component after being moved out is in active contact with the rotating processing component.

[0009] As a further aspect of the present invention: the processing assembly includes a support rod that can rotate based on the housing, one end of the support rod is fixedly mounted with a pressure roller for extruding raw materials, and a secondary gear that meshes with the control assembly is fixedly mounted on its outer surface; the moving assembly is slidably disposed on the support rod and the pressure roller.

[0010] As a further embodiment of the present invention: the control component includes a cylinder fixedly connected to the cover, the output shaft of the cylinder is fixedly mounted with a motor and a bracket corresponding to the positions of the two auxiliary gears, the output shaft of the motor is fixedly mounted with a short rod, and the outer surface of the short rod is fixedly mounted with a main gear that is drivenly connected to both auxiliary gears and a push plate corresponding to the positions of both moving components.

[0011] As a further aspect of the present invention: the thickness of the main gear in the front-back direction is smaller than the thickness of the secondary gear in the front-back direction, so that when the main gear moves forward / backward, it will disengage from one of the secondary gears and remain engaged with the other secondary gear.

[0012] As a further aspect of the present invention: the bracket has two upwardly extending ends and the two ends are respectively corresponding to two auxiliary gears in a front-to-back manner. When the bracket moves synchronously with the motor, the ends of the bracket can enter the tooth grooves of the corresponding auxiliary gears.

[0013] As a further aspect of the present invention: the movable component includes a ring movably sleeved outside the support rod and a plurality of inserts slidably mounted on the pressure roller. The inserts are embedded in the pressure roller and are flush with the outer surface of the pressure roller. A long rod inserted into the pressure roller is fixedly mounted on the surface of the ring. A truncated cone located inside the pressure roller is fixedly mounted on the end of the long plate away from the ring. A partition plate that movably fits against the truncated cone plate is fixedly mounted on the surface of the insert. A first spring is fixedly mounted between the partition plate and the pressure roller.

[0014] As a further aspect of the invention: the partition and the insert can move along the radial direction of the pressure roller, and the first spring causes the partition to have a tendency to move inward into the pressure roller.

[0015] As a further aspect of the present invention: the ring and the push plate are in a close-fitting state. When the push plate moves, the ring can drive the truncated cone to move along the axial direction of the pressure roller. When the truncated cone moves, the partition can drive the insert plate to extend out of the pressure roller.

[0016] As a further aspect of the invention: the truncated cones within the two pressure rollers are arranged in opposite directions to accommodate the forward / backward movement of the ring, and the inside of the pressure rollers is provided with cavities for the movement of the truncated cones and the sliding of the partition.

[0017] This invention also provides the following technical solution: a rubber plasticizing method, comprising the following steps:

[0018] S1. The raw material is put into the box and the control component is started, which drives the two processing components to rotate synchronously to crush the raw material.

[0019] S2. The control component causes one of the processing components to rotate while the other processing component does not rotate, and allows the movable component on the stationary processing component to extend and fit against the rotating processing component. As the corresponding processing component rotates, the movable component can completely scrape off the raw material and transfer it to the stationary processing component.

[0020] S3. The control component restores the synchronous rotation of the two processing components, so that the raw material is squeezed and processed again.

[0021] Compared with existing technologies, the advantages of this invention are: through the cooperation between the processing component, control component, and moving component, the raw material on the processing component can be quickly and completely scraped off, and the scraped raw material is transferred to another processing component for further extrusion processing. This achieves full utilization of the raw material and ensures the extrusion effect, while also solving the problem of raw material adhesion to the processing component during processing. The moving component does not extend during extrusion, thus not affecting the extrusion process and reducing frictional damage between it and the processing component, ensuring the service life of both components, resulting in higher overall practicality. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is a perspective view of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention;

[0025] Figure 3 This is a schematic diagram of the main gear and auxiliary gear structure of the present invention;

[0026] Figure 4 This is a top view of the push plate and the ring of the present invention;

[0027] Figure 5 This is a schematic diagram of the internal structure of the pressure roller of the present invention;

[0028] Figure 6 This is a front view of the bracket of the present invention;

[0029] Figure 7 This is a schematic diagram of the first connecting rod and the box structure of the present invention;

[0030] Figure 8 for Figure 7 Enlarged view of the structure at point A in the middle;

[0031] Figure 9 for Figure 7 Enlarged view of the structure at point B in the middle;

[0032] Figure 10 This is a schematic diagram of the annular groove and ball bearing structure of the present invention.

[0033] In the diagram: 1. Box body; 2. Cover; 3. Processing component; 4. Control component; 5. Moving component; 6. Transmission component; 7. Adjusting component; 101. Feed port; 102. Horizontal hole; 301. Support rod; 302. Pressure roller; 303. Secondary gear; 304. Slide groove; 305. Cavity; 3011. First connecting rod; 3012. Second connecting rod; 401. Cylinder; 402. Motor; 403. Short rod; 404. Main gear; 405. Push plate; 406. Bracket; 4051. Annular groove; 4052. Ball bearing; 501. Ring; 502. Insert plate; 503. Frustum; 504. Partition plate; 505. First spring; 601. Pulley; 602. Telescopic rod; 603. Tensioner wheel; 604. Second spring; 701. Screw; 702. Ring. Detailed Implementation

[0034] Example 1:

[0035] Please see Figures 1 to 6 This invention provides a rubber plasticizing device, mainly used to fully utilize raw materials. The device includes a housing 1 and a cover 2 fixedly installed on the front surface of the housing 1. Both the upper and lower sides of the housing 1 have through-holes 101; the upper through-hole 101 is used for feeding, and the lower through-hole 101 is used for discharging. The housing 1 and the cover 2 are internally equipped with two processing components 3 for extruding and crushing the raw materials. A gap is formed between the two processing components 3 to allow the extruded raw materials to pass through. A moving component 5 for scraping the raw materials is slidably mounted on the processing components 3. The cover 2 is internally equipped with a control component 4 for driving the processing components 3 to rotate and corresponding to the position of the moving component 5.

[0036] When the control component 4 is activated, it can drive the two processing components 3 to rotate synchronously, extruding and mechanically destroying the raw material. At the same time, the control component 4 can also make one of the processing components 3 rotate while the other processing component 3 does not rotate, and can make the moving component 5 on the non-rotating processing component 3 move out relative to it. After being moved out, the moving component 5 is in contact with the other processing component 3 (i.e. the processing component 3 that is still rotating). As the other processing component 3 continues to rotate, the moving component 5 can scrape off the raw material attached to it and transfer it to the non-rotating processing component 3.

[0037] Next, the control component 4 can restore the synchronous rotation of the two processing components 3, continuing to extrude and crush the raw material. During the above process, the control component 4 can also limit the non-rotating processing component 3, preventing it from rotating under the action of the rotating processing component 3 and affecting the scraping effect of the moving component 5.

[0038] Reference Figure 3 and Figure 4 In this embodiment, preferably, the processing component 3 includes a support rod 301 rotatably connected to the housing 1. A pressure roller 302 located inside the housing 1 is fixedly mounted at the rear end of the support rod 301, and its front end extends into the cover 2, with a secondary gear 303 fixedly mounted on its outer surface for meshing and transmission with the control component 4. The moving component 5 is disposed on the support rod 301 and the pressure roller 302. The control component 4 drives the support rod 301 and the pressure roller 302 to rotate via the secondary gear 303, and the rotation of the support rod 301 synchronously drives the corresponding moving component 5 to rotate as well.

[0039] Reference Figure 3 and Figure 4 In this embodiment, preferably, the control component 4 includes a cylinder 401 fixedly connected to the inner front wall of the housing 2. The output shaft of the cylinder 401 is fixedly mounted with a motor 402 and a bracket 406 corresponding to the positions of the two auxiliary gears 303. Alternatively, the bracket 406 can be fixedly mounted on the surface of the motor 402, with the same operating process. The output shaft of the motor 402 is fixedly mounted with a short rod 403. The outer surface of the short rod 403 is fixedly mounted with a main gear 404, which is drively connected to both auxiliary gears 303, and a push plate 405 (circular) corresponding to the positions of the two moving components 5.

[0040] In the above structure, the thickness of the main gear 404 in the front-back direction is smaller than that of the secondary gear 303 in the front-back direction. This allows the main gear 404 to disengage from the secondary gear 303 on the left when it moves backward and from the secondary gear 303 on the right when it moves forward. This enables the main gear 404 to drive both secondary gears 303 to rotate synchronously, or it enables the main gear 404 to drive only one of the secondary gears 303 to rotate.

[0041] Simultaneously, when the main gear 404 moves backward (forward), it drives the push plate 405 to move synchronously, causing the push plate 405 to drive the left (right) moving component 5 to extend from the outer surface of the pressure roller 302 and correspondingly fit into the outer surface of the right (left) pressure roller 302. As one pressure roller 302 rotates and the other pressure roller 302 does not rotate, the extended moving component 5 can completely scrape off the raw material from the outer surface of the rotating pressure roller 302 and transfer it to the outer surface of the non-rotating pressure roller 302.

[0042] Reference Figure 6 In this embodiment, preferably, the bracket 406 has two upwardly extending ends and the two ends correspond to the positions of the two auxiliary gears 303 respectively. When the bracket 406 moves synchronously with the motor 402, the ends of the bracket 406 can enter the tooth groove of the auxiliary gear 303 corresponding to the non-rotating pressure roller 302, thereby preventing the non-rotating pressure roller 302 from being pulled by the rotating pressure roller 302 and causing it to rotate on its own, which would cause the position of the moving component 5 to deviate and affect the scraping effect.

[0043] The left end of the bracket 406 is located in front of the left auxiliary gear 303 and enters the left auxiliary gear 303 when it moves backward. The right end of the bracket 406 is located behind the right auxiliary gear 303 and enters the right auxiliary gear 303 when it moves forward.

[0044] It should be noted that when cylinder 401 drives motor 402, main gear 404, and support 406 to move, motor 402 can stop rotating to avoid interference between support 406 and secondary gear 303. Alternatively, chamfering can be applied to the surface of support 406 and the teeth of secondary gear 303 to further prevent interference between support 406 and secondary gear 303, as well as between main gear 404 and secondary gear 303 during resetting. Of course, the rotation speed of pressure roller 302 is inherently slow during crushing, allowing the resetting process to proceed smoothly.

[0045] Reference Figures 3 to 5In this embodiment, preferably, the moving component 5 includes a ring 501 movably sleeved outside the support rod 301 and a plurality of inserts 502 slidably mounted on the pressure roller 302. The inserts 502 are embedded in the pressure roller 302 and their surfaces are flush with the outer surface of the pressure roller 302, which can ensure the squeezing effect on the raw material. A long rod inserted into the pressure roller 302 is fixedly installed on the surface of the ring 501. The long rod is located inside the pressure roller 302 and the support rod 301, and a truncated cone 503 is fixedly installed at its end away from the ring 501. A partition 504 that movably fits against the truncated cone 503 is fixedly installed on the surface of the inserts 502 near the pressure roller 302. A first spring 505 is fixedly installed between the partition 504 and the pressure roller 302. Under the action of the first spring 505, the partition 504 can drive the inserts 502 to retract into the pressure roller 302, and the first spring 505 is used for automatic reset after the partition 504 and the inserts 502 move.

[0046] In the above structure, the ring 501 also corresponds to the position of the push plate 405, and can move accordingly under the action of the moving push plate 405. When the ring 501 moves, it can drive the truncated cone 503 to move within the pressure roller 302 via the long rod. When the truncated cone 503 moves, it can push the partition 504 and the insert 502 to move out radially along the pressure roller 302. Specifically, the surface of the partition 504 away from the insert 502 is provided with an inclined surface adapted to the size of the truncated cone 503. The inclined surface realizes the translation of the partition 504 along the pressure roller 302, and the truncated cone 503 can realize the synchronous movement of all partitions 504 and all inserts 502.

[0047] When all the inserts 502 of a pressure roller 302 are extended, they themselves have the function of cleaning the pressure roller 302. After the push plate 405 pushes the ring 501 to move, the push plate 405 has pressure acting on the ring 501, which can prevent the support rod 301 and the pressure roller 302 corresponding to the ring 501 from rotating on their own. That is, it also has an auxiliary effect in preventing the pressure roller 302 from rotating on its own.

[0048] Understandably, the left and right truncated cones 503 are oriented in opposite directions to accommodate the forward or backward movement of the ring 501. The pressure roller 302 has an internal cavity 305 for the movement of the long rod and the truncated cone 503, as well as for the placement of the partition 504 and the first spring 505. The support rod 301 has a groove 304 on its surface for the sliding of the ring 501 and the long rod.

[0049] In use, the raw material enters the housing 1 through the upper feed port 101 and the motor 402 is started. The main gear 404, the auxiliary gear 303, and the support rod 301 drive the pressure roller 302, the ring 501, and the insert plate 502 to rotate synchronously. During the rotation, the two pressure rollers 302 crush the raw material, and some of the raw material will adhere to the outer surface of the pressure roller 302. Then, the cylinder 401 starts the forward / backward moving motor 402, which drives the main gear 404 to disengage from one of the auxiliary gears 303, so that one pressure roller 302 keeps rotating while the other pressure roller 302 remains stationary. The ring 501 corresponding to the stationary pressure roller 302 is pushed by the push plate 405 so that the cone 503 contacts the inclined surface of the partition plate 504. This causes the partition plate 504 to move the insert plate 502 out along the radial direction of the pressure roller 302, and the moved insert plate 502 can fit against the outer surface of the other pressure roller 302.

[0050] Next, the continued operation of motor 402 keeps the other pressure roller 302 rotating. During this rotation, the raw material on the outer surface of the pressure roller 302 is scraped off by the insert plate 502 and transferred to the other pressure roller 302. During this process, the bracket 406 can move synchronously with motor 402 and remain stationary while the pressure roller 302 is stationary. Subsequently, cylinder 401 can drive motor 402 to reset, causing the two pressure rollers 302 to resume synchronous rotation. At this time, the raw material is again squeezed and broken by the two pressure rollers 302.

[0051] In summary, through the coordinated structure of the ring 501, the truncated cone 503, the insert plate 502, and the bracket 406, the raw material on the outer surface of the pressure roller 302 can be quickly and completely scraped off. The scraped material is then transferred to another pressure roller 302 for further extrusion, ensuring full utilization of the raw material and guaranteeing the extrusion effect. This also solves the problem of raw material adhesion to the pressure roller 302 during processing. The insert plate 502 does not protrude during extrusion, thus reducing frictional damage between it and the pressure roller 302 without affecting the extrusion process, resulting in higher overall practicality.

[0052] Example 2:

[0053] Please see Figures 1 to 10 Based on Embodiment 1, in order to achieve the adjustment of the distance between the two pressure rollers 302, the support rod 301 is improved: at this time, the support rod 301 includes a first connecting rod 3011 that is movably engaged with the housing 1 and a second connecting rod 3012 that is rotatably engaged with the cover 2. The ring 501 and the auxiliary gear 303 are respectively disposed on the first connecting rod 3011 and the second connecting rod 3012, and the first connecting rod 3011 and the second connecting rod 3012 are connected by the transmission assembly 6.

[0054] Furthermore, a transverse hole 102 is provided through the front surface of the housing 1 to allow the first connecting rod 3011 to be movably positioned, meaning the first connecting rod 3011 can rotate based on the transverse hole 102 and can move left and right along the transverse hole 102. The side wall of the cover 2 is provided with an adjustment component 7 for driving the first connecting rod 3011 to move left and right along the transverse hole 102, and when the first connecting rod 3011 moves along the transverse hole 102, it can maintain a transmission state with the second connecting rod 3012 through the transmission component 6.

[0055] It should be noted that the diameter of the pressure roller 302 is larger than the length of the transverse hole 102 in the left-right direction, so that the front end of the pressure roller 302 can completely block the transverse hole 102. That is to say, even if the transverse hole 102 is opened, the raw material in the box 1 will not enter the cover 2 through the transverse hole 102.

[0056] Reference Figure 7 and Figure 8 In this embodiment, preferably, the transmission assembly 6 includes pulleys 601 fixedly mounted on the first connecting rod 3011 and the second connecting rod 3012, and a telescopic rod 602 fixedly mounted on the inner side wall of the housing 2. A belt is provided between the two pulleys 601, forming a transmission connection through the belt and the pulleys 601. A tensioning wheel 603 is fixedly mounted on the movable end of the telescopic rod 602, abutting against the belt. A second spring 604 is sleeved on the outer surface of the telescopic rod 602. Under the action of the second spring 604, the tensioning wheel 603 tends to move closer to the belt, thereby achieving belt tension.

[0057] In the above structure, the pulley 601 of the first link 3011 is preferably located above the second link 3012. This can reduce the space occupied by the two pulleys 601 in the left and right directions, and thus reduce the overall space occupied by the structure.

[0058] Reference Figure 7 and Figure 8 In this embodiment, preferably, the adjusting assembly 7 includes a screw 701 threadedly connected to the side wall of the housing 2 and a collar 702 rotatably sleeved on the outer surface of the first connecting rod 3011. The end of the screw 701 located inside the housing 2 is slidably mounted on the outer surface of the collar 702. That is, the collar 702 can rotate along the outer surface of the first connecting rod 3011, but cannot move back and forth, while the screw 701 can slide and rotate along the outer surface of the collar 702.

[0059] When the screw 701 rotates, it can move left and right based on the cover 2, thereby driving the collar 702 and the first connecting rod 3011 to move synchronously. The first connecting rod 3011 drives the corresponding pulley 601 to move synchronously, and the tensioning wheel 603, under the action of the first spring 505, can always be in contact with the belt to maintain the tension of the belt.

[0060] It should be noted that because the first connecting rod 3011 will drive the ring 501 to move synchronously left and right, the diameter of the ring 501 needs to be increased and the diameter of the push plate 405 correspondingly reduced. Furthermore, as... Figure 10 As shown, the front and rear dimensions of the push plate 405 can be increased and an annular groove 4051 can be formed. The ring 501 is inserted into the annular groove 4051 and can also move left and right based on the annular groove 4051. At the same time, a ball bearing 4052 is movably installed on the inner wall of the annular groove 4051 and is in contact with the outer surface of the ring 501. In this way, the frictional contact between the push plate 405 and the ring 501 is transformed into a rolling contact between the ball bearing 4052 and the ring 501, while maintaining the pushing effect on the ring 501.

[0061] In use, the material on the outer surface of the pressure roller 302 can be quickly scraped off through the structure of the ring 501, the truncated cone 503, and the insert plate 502, and the scraped material can be transferred to another pressure roller 302. The working process and effect of this part are the same as in Embodiment 1, and will not be repeated here. The difference is that when the main gear 404 rotates, it still drives the two auxiliary gears 303 to rotate. The auxiliary gears 303 drive the pressure roller 302 to rotate through the second connecting rod 3012, the pulley 601, and the first connecting rod 3011. When the rotating screw 701 drives the collar 702 to move left and right, the collar 702 drives the first connecting rod 3011 and the corresponding pulley 601 to move horizontally along the transverse hole 102. When the first connecting rod 3011 moves, the belt is always kept taut through the first spring 505 and the tensioning wheel 603, so that the two pulleys 601 can maintain the transmission state, and the two pressure rollers 302 can keep rotating.

[0062] In Example 1, the distance between two adjacent pressure rollers 302 is fixed. However, in actual operation, the distance between the two pressure rollers 302 needs to be adjusted in real time to meet the extrusion requirements of different raw materials or different states of the same raw material, which has certain limitations.

[0063] Compared to Embodiment 1, the coordination of the first connecting rod 3011, the second connecting rod 3012, the screw 701, and the collar 702 allows for rapid adjustment of the distance between the two pressure rollers 302 to meet the extrusion requirements of different raw materials or the same raw material in different states. Furthermore, adjustment can be made at any time without stopping the machine, further improving work efficiency. The overall design, combined with the support rod 301, does not affect the effective scraping and complete transfer of raw materials, and prevents any raw material from leaking into the housing 2 through the transverse hole 102, thus ensuring full utilization of the raw materials and meeting more practical needs.

[0064] Example 3:

[0065] Please see Figures 1 to 10This invention provides a rubber plasticizing method, which adopts any one of embodiments one to three, and therefore also has corresponding beneficial effects. Specifically, firstly, the raw material enters the housing 1 from the upper feed port 101 and the control component 4 is activated, driving the two processing components 3 to rotate and crush the raw material; then, the control component 4 causes one of the processing components 3 to rotate while the other does not rotate, and allows the movable component 5 on the stationary processing component 3 to extend and fit against the rotating processing component 3. As the control component 4 drives the rotation of one of the processing components 3, the movable component 5 can completely scrape off the raw material and transfer it to the stationary processing component 3; finally, the control component 4 restores the synchronous rotation of the two processing components 3, so that the raw material is crushed and processed again, and finally flows out from the lower feed port 101.

Claims

1. A rubber plasticizing equipment, comprising a housing and a cover fixedly mounted on the housing, characterized in that, Two processing components for extruding raw materials are jointly arranged between the box body and the cover. The processing components are equipped with a moving component for scraping the raw materials. The inside of the cover is equipped with a control component for driving the processing components to rotate and corresponding to the position of the moving component. Activating the control component can cause one of the processing components to rotate while the other processing component remains stationary, and can also cause the moving component on the stationary processing component to move out relative to it. After moving out, the moving component is in active contact with the rotating processing component. The processing assembly includes a support rod that can rotate based on the housing, one end of which is fixedly mounted with a pressure roller for extruding raw materials, and a secondary gear that meshes with the control assembly is fixedly mounted on its outer surface; the moving assembly is slidably disposed on the support rod and the pressure roller. The control component includes a cylinder fixedly connected to the housing. The output shaft of the cylinder is fixedly mounted with a motor and brackets corresponding to the positions of the two auxiliary gears. The output shaft of the motor is fixedly mounted with a short rod. The outer surface of the short rod is fixedly mounted with a main gear that is drivenly connected to both auxiliary gears and a push plate that is corresponding to the positions of both moving components.

2. The rubber plasticizing equipment according to claim 1, characterized in that, The thickness of the main gear in the front-to-back direction is smaller than that of the secondary gear in the front-to-back direction, so that when the main gear moves forward / backward, it will disengage from one of the secondary gears and remain engaged with the other secondary gear.

3. The rubber plasticizing equipment according to claim 2, characterized in that, The bracket has two upward-extending ends, and the two ends correspond to two auxiliary gears in a front-to-back manner. When the bracket moves synchronously with the motor, the ends of the bracket can enter the tooth grooves of the corresponding auxiliary gears.

4. The rubber plasticizing equipment according to claim 3, characterized in that, The movable component includes a ring movably sleeved outside the support rod and several inserts slidably mounted on the pressure roller. The inserts are embedded in the pressure roller and kept flush with the outer surface of the pressure roller. A long rod inserted into the pressure roller is fixedly installed on the surface of the ring. A truncated cone located inside the pressure roller is fixedly installed at the end of the long plate away from the ring. A partition plate that movably fits against the truncated cone plate is fixedly installed on the surface of the insert. A first spring is fixedly installed between the partition plate and the pressure roller.

5. The rubber plasticizing equipment according to claim 4, characterized in that, The partition and insert are movable along the radial direction of the pressure roller, and the first spring causes the partition to tend to move inward into the pressure roller.

6. The rubber plasticizing equipment according to claim 5, characterized in that, The ring and the push plate are in a close-fitting state. When the push plate moves, the ring can drive the truncated cone to move along the axial direction of the pressure roller. When the truncated cone moves, the partition can drive the insert plate to extend out of the pressure roller.

7. The rubber plasticizing equipment according to claim 6, characterized in that, The truncated cones within the two pressure rollers are oriented in opposite directions to accommodate the forward / backward movement of the ring. The pressure rollers have cavities inside to allow the truncated cones to move and the partitions to slide.

8. A rubber plasticizing method, using the plasticizing equipment as described in any one of claims 1-7, characterized in that, Includes the following steps: S1. The raw material is put into the box and the control component is started, which drives the two processing components to rotate synchronously to crush the raw material. S2. The control component causes one of the processing components to rotate while the other processing component does not rotate, and allows the movable component on the stationary processing component to extend and fit against the rotating processing component. As the corresponding processing component rotates, the movable component can completely scrape off the raw material and transfer it to the stationary processing component. S3. The control component restores the synchronous rotation of the two processing components, so that the raw material is squeezed and processed again.

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