An automated curing apparatus for vulcanized rubber preforms

Abstract

The present application relates to waste and old rubber recycling technical field, specifically, it relates to a kind of vulcanized rubber forming blank automatical processing equipment.It includes the pyrolysis furnace for heating rubber powder into molten state in rack, the top of the pyrolysis furnace is equipped with hopper, the shell is arranged below the pyrolysis furnace, the feed inlet for the communication of both is arranged between the pyrolysis furnace and shell;When the paving seat reciprocating motion meets the metal wire that is blocked into filter hole, paving seat passes through filter plate and makes it over metal wire by pressing down.The spacing of the short branch of both limit L-shaped plate and sealing L-shaped plate is expanded.After paving seat overcomes the metal wire that is blocked, filter plate loses the pressure of pressing down and resets under the action of spring restoring force.In the process that suction block follows paving seat reciprocating motion, when collection groove moves to the top of metal wire, the suction force generated by suction block makes metal wire away from the surface of filter plate, and is adsorbed and collected in the inside of collection groove.

Description

Technical Field

[0001] This invention relates to the field of waste rubber recycling technology, and more specifically, to an automated refining equipment for vulcanized rubber molding blanks. Background Technology

[0002] Vulcanized rubber is a powdered material obtained by recycling waste vulcanized rubber and crushing it. It can replace part of the raw rubber in the production of rubber products. When preparing compound rubber from vulcanized rubber, it needs to be heated and melted, and a reducing agent is added to break the sulfur-based crosslinks in the molten rubber, so that the rubber can regain its processing fluidity.

[0003] For example, the invention patent with publication number CN113635488B discloses a waste rubber tire pyrolysis and recycling device. In the pyrolysis stage, in order to concentrate the heat inside the pyrolysis cylinder and prolong the residence time of the material, the bottom outlet of the pyrolysis cylinder must be designed as a narrow opening.

[0004] It can be observed that after the molten rubber falls from the pyrolysis cylinder, the filter screens that actually perform the filtering function are concentrated in the area near the bottom of the pyrolysis cylinder outlet, while the rest of the filter screens are not effectively utilized. At the same time, because the rubber tire contains steel cords, although the annular frame can bounce up and down to make the filter screen shake, the steel cords of varying lengths will clog the mesh, affecting the efficiency of the molten rubber passing through the filter screen.

[0005] In view of this, we propose an automated refining equipment for vulcanized rubber molding blanks to improve the above-mentioned shortcomings. Summary of the Invention

[0006] This invention provides an automated refining equipment for vulcanized rubber molding blanks, which solves the problems in existing rubber recycling equipment where most of the filter screen area is not effectively utilized and impurities easily clog the screen.

[0007] To achieve the above objectives, the automated refining equipment for vulcanized rubber molding blanks includes a pyrolysis furnace installed inside the frame for heating rubber powder into a molten state. The top of the pyrolysis furnace is equipped with a hopper, and a shell is installed below the pyrolysis furnace. A feed inlet is provided between the pyrolysis furnace and the shell for connecting the two.

[0008] The housing is equipped with a filter plate for intercepting metal wires in molten rubber, and the filter plate slides along the z-axis inside the housing.

[0009] The housing is provided with a lead screw nut seat that reciprocates along the y-axis above the filter plate. The lead screw nut seat is driven by a drive assembly, and an attraction block is engaged at the bottom of the lead screw nut seat.

[0010] When the metal wire gets stuck in the filter hole of the filter plate, hindering the movement of the lead screw nut seat, the lead screw nut seat drives the filter plate to slide down over the top of the metal wire, and the attraction block attracts the metal wire to move it away from the filter plate.

[0011] In the above scheme, by setting the filter plate to be able to slide up and down, when the metal wire in the molten rubber is blocked near the filter hole, the filter plate can be moved up and down to shake the metal wire away from the vicinity of the filter hole, thereby weakening the effect of the metal wire on the efficiency of the molten rubber passing through the filter plate.

[0012] There is a certain gap between the bottom of the lead screw nut seat and the top of the filter plate. By sliding the lead screw nut seat back and forth along the y-axis, the molten rubber located near the feed inlet is spread evenly across the top of the filter plate. This not only extends the overall service life of the filter plate but also improves the efficiency of molten rubber passing through the filter plate.

[0013] During the process of moving the lead screw nut seat to spread molten rubber, if the metal wire that follows the falling molten rubber is obliquely inserted into the filter hole of the filter plate and stuck, when the lead screw nut seat moves to that point, the lead screw nut seat will press down the metal wire to make the filter plate slide downward, so that the lead screw nut seat can easily pass over that point.

[0014] Based on this, heat insulation covers are fixedly installed on both sides of the top of the shell that are far apart from each other, and a pair of limiting L-shaped plates are fixedly connected between the two inner sidewalls of the shell that are far apart from each other. The two limiting L-shaped plates are symmetrically spaced about the y-axis.

[0015] The sealing L-shaped plate divides the interior of the shell into a processing chamber and a finished product chamber. The processing chamber is located above the finished product chamber, and an outlet for discharging filtered molten rubber is provided on one side of the bottom of the finished product chamber.

[0016] A pair of sealing L-shaped plates are fixedly connected to the top of the filter plate. The two sealing L-shaped plates are symmetrically arranged on the outside of the limiting L-shaped plate, and the sealing L-shaped plates slide against the outside of the corresponding limiting L-shaped plates.

[0017] The short arms of the limiting L-shaped plate and the sealing L-shaped plate are both oriented away from the inside of the housing, and the filter holes on the filter plate are all located between the two sealing L-shaped plates.

[0018] With this design, after the molten rubber falls from the pyrolysis furnace into the processing chamber, it will only remain between the two sealing L-shaped plates, and the limiting L-shaped plate and the sealing L-shaped plate will remain in close contact. Therefore, the molten rubber will not cross the sealing L-shaped plate and adhere to other structures outside it.

[0019] In another technical solution, the drive assembly that drives the lead screw nut seat to reciprocate along the y-axis includes... Figure 5The device contains a ball screw and a motor. The ball screw is distributed along the y-axis and rotatably connected to the side wall of the housing. The motor is located outside the housing and its output shaft is coaxially connected to the ball screw. Several guide rods are distributed parallel to each other on both sides of the ball screw. Each guide rod is fixedly connected to the inner side wall of the housing and slidably connected to the screw nut seat.

[0020] In this technical solution, the lead screw nut seat drives the paving seat to reciprocate along the y-axis, thereby evenly spreading the molten rubber that has accumulated in the processing cavity near the feed inlet to various parts of the top of the filter plate.

[0021] In addition, several sliding rods are fixedly connected to the bottom of the short support arm of the limiting L-shaped plate, and the lower part of the sliding rods passes through the short support arm of the sealing L-shaped plate and is slidably connected to it.

[0022] A spring is fitted around the slide bar between the short support arm of the limiting L-shaped plate and the short support arm of the sealing L-shaped plate. The top of the spring is fixedly connected to the short support arm of the limiting L-shaped plate, and the bottom of the spring is fixedly connected to the sealing L-shaped plate.

[0023] The paving base is distributed along the x-axis, and guide slopes are provided on both sides of the bottom of the paving base that are far apart. The bottom of the suction block is provided with a collection groove that is distributed along the x-axis.

[0024] The collection trough has a second slot at each of its two far apart ends, and the paving seat has a first slot at each of its two far apart ends. When the attraction block is inserted into the bottom of the paving seat, the first slot and the second slot form a "U" shape, so that the "U" shaped block can be inserted to fix the attraction block to the paving seat.

[0025] As can be seen from the above scheme, during the process of the suction block reciprocating with the paving seat, when the collection trough moves above the metal wire, the suction force generated by the suction block causes the metal wire to leave the surface of the filter plate and be adsorbed and collected inside the collection trough, so that the metal wire no longer affects the movement of the paving seat, thereby improving the efficiency of molten rubber passing through the filter plate.

[0026] Once the collection trough is full of metal wires, removing the "U"-shaped clip will allow the suction block to be taken out from the bottom of the paving base, making it easier to clean the metal wires inside the collection trough.

[0027] Based on the above description, the beneficial effects of the present invention compared with the prior art are as follows:

[0028] When the paving seat, which reciprocates with the paving platform, encounters a metal wire stuck in the filter holes, the paving seat presses down on the filter plate to make it pass over the wire. The distance between the short arms of the limiting L-shaped plate and the sealing L-shaped plate widens, stretching the spring and storing elastic potential energy. After the paving seat passes the stuck metal wire, the filter plate loses its downward pressure and resets under the action of the spring's restoring force, loosening the stuck metal wire from the filter holes.

[0029] Furthermore, as the suction block reciprocates with the paving seat, when the collection trough moves above the metal wire, the suction force generated by the suction block causes the metal wire to leave the surface of the filter plate and be adsorbed and collected inside the collection trough, so that the metal wire no longer affects the movement of the paving seat, thereby improving the efficiency of molten rubber passing through the filter plate. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a perspective view of the overall structure of the present invention;

[0032] Figure 2 This is a partial cross-sectional perspective view of the present invention;

[0033] Figure 3 This is a cross-sectional perspective view of the internal structure of the housing of the present invention;

[0034] Figure 4 This is a diagram showing the position of the filter plate inside the housing according to the present invention;

[0035] Figure 5 This is a schematic diagram illustrating the structural principle of the molten rubber stacked on the surface of the filter plate in this invention.

[0036] Figure 6 This is a schematic diagram illustrating the principle of relative sliding between the filter plate and the limiting L-shaped plate of the present invention.

[0037] Figure 7 This is a front view of the paving base of the present invention;

[0038] Figure 8 This is a three-dimensional structural view of the paving base of the present invention.

[0039] The meanings of the labels in the diagram are as follows:

[0040] 100. Frame; 110. Pyrolysis furnace; 111. Hopper; 112. Feed inlet;

[0041] 200. Shell; 201. Processing cavity; 202. Finished product cavity; 203. Discharge port; 210. Limiting L-shaped plate; 220. Insulation cover;

[0042] 300, Filter plate; 310, Sealing L-shaped plate; 320, Ball screw; 321, Screw nut seat; 322, Guide rod; 330, Spreading seat; 331, Guide slope; 332, Suction block; 333, Collection trough; 334, First slot; 335, Second slot; 340, Slide rod; 350, Spring. Detailed Implementation

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] After the molten rubber falls from the pyrolysis cylinder, the filter screens that actually perform the filtering function are concentrated in the area near the outlet of the pyrolysis cylinder, while the rest of the filter screens are not effectively utilized. Meanwhile, waste car tires are a major source of recycled vulcanized rubber raw materials. These tires contain steel cords, which, when shredded, are cut into wires and mixed into the vulcanized rubber raw materials. Therefore, although the up-and-down movement of the annular frame causes the filter screen to shake, the steel cords of varying lengths can get stuck in the mesh, affecting the passage of molten rubber through the filter screen. If a disturbance structure is added to spread the molten rubber elsewhere, the steel cords stuck in the mesh will obstruct the movement of the disturbance structure, or the disturbance structure forcibly pushing the steel cords will cause mechanical damage to the filter screen.

[0045] Please see Figure 1 and Figure 2 Since the filter screens that actually filter the molten rubber are mainly concentrated in the area near the narrow outlet of the pyrolysis cylinder, the filter screens in most other areas are not utilized. To address this problem, the present invention aims to provide an automated refining equipment for vulcanized rubber forming blanks. The refining equipment includes a pyrolysis furnace 110 installed in a frame 100 for heating and melting waste rubber. A hopper 111 is provided on the top of the pyrolysis furnace 110, and a shell 200 is provided below the pyrolysis furnace 110. An inlet 112 is provided between the pyrolysis furnace 110 and the shell 200 for connecting the two.

[0046] The housing 200 is equipped with a filter plate 300 for intercepting metal wires in molten rubber. The filter plate 300 slides along the z-axis inside the housing 200. By setting the filter plate 300 to be able to slide up and down, when metal wires in molten rubber block the vicinity of the filter holes, the filter plate 300 can shake the metal wires away from the vicinity of the filter holes by sliding up and down, thereby weakening the effect of the metal wires on the efficiency of molten rubber passing through the filter plate 300.

[0047] Inside the housing 200, above the filter plate 300, there is a lead screw nut seat 321 that reciprocates along the y-axis. The lead screw nut seat 321 is driven by a drive assembly, and an attraction block 332 is engaged at the bottom of the lead screw nut seat 321.

[0048] In the existing pyrolysis stage, to concentrate heat within the pyrolysis furnace 110 and prolong the material residence time, the bottom outlet of the pyrolysis furnace 110 must be designed with a narrow opening. Please continue reading. Figure 2 The molten rubber entering the housing 200 concentrates in the area near the inlet 112 when passing through the filter plate 300. This shortens the service life of the filter plate 300 in this area, and when it needs maintenance or replacement, the rest of the filter plate 300 is essentially unused.

[0049] There is a certain gap between the bottom of the lead screw nut seat 321 and the top of the filter plate 300. By sliding the lead screw nut seat 321 back and forth along the y-axis, the molten rubber located near the feed inlet 112 is spread evenly across the top of the filter plate 300. This not only extends the overall service life of the filter plate 300 but also improves the efficiency of molten rubber passing through the filter plate 300.

[0050] When the metal wire gets stuck in the filter hole of the filter plate 300, hindering the movement of the screw nut seat 321, the screw nut seat 321 drives the filter plate 300 to slide down and pass over the top of the metal wire, and the suction block 332 attracts the metal wire and moves it away from the filter plate 300. During the process of the screw nut seat 321 moving and spreading molten rubber, if the metal wire following the falling molten rubber is obliquely inserted into the filter hole of the filter plate 300 and gets stuck, when the screw nut seat 321 moves to that point, the screw nut seat 321 presses down on the metal wire to make the filter plate 300 slide downward, so the screw nut seat 321 can easily pass over that point.

[0051] It should be disclosed that the attraction block 332 can be a magnet. When the attraction block 332 moves above the metal wire, its attraction force causes the metal wire to leave the top of the filter plate 300 and be attracted and fixed to the bottom of the attraction block 332.

[0052] like Figure 3 and Figure 4 As shown, heat insulation covers 220 are fixedly installed on both sides of the top of the housing 200 that are far apart from each other. A pair of limiting L-shaped plates 210 are fixedly connected between the two far apart inner sidewalls of the housing 200. The two limiting L-shaped plates 210 are symmetrically spaced about the y-axis. The heat insulation covers 220 are made of heat insulation material to prevent the molten rubber from cooling before passing through the filter plate 300. The heat insulation covers 220 and the housing 200 are designed to be detachable. When the top of the filter plate 300 is heavily clogged or the filter plate 300 has been used for a long time, the heat insulation covers 220 can be removed from the top of the housing 200 to facilitate maintenance of the filter plate 300.

[0053] To facilitate understanding of the above content, Figure 4The side view shows the positional connection between the housing 200 and the filter plate 300. The sealing L-shaped plate 310 divides the interior of the housing 200 into a processing chamber 201 and a finished product chamber 202. The processing chamber 201 is located above the finished product chamber 202. The bottom side of the finished product chamber 202 has an outlet 203 for discharging the filtered molten rubber.

[0054] Furthermore, a pair of sealing L-shaped plates 310 are fixedly connected to the top of the filter plate 300. The two sealing L-shaped plates 310 are symmetrically arranged on the outside of the limiting L-shaped plate 210, and the sealing L-shaped plates 310 slide against the outside of the corresponding limiting L-shaped plates 210.

[0055] The short arms of the limiting L-shaped plate 210 and the sealing L-shaped plate 310 are both oriented away from the inside of the housing 200, and the filter holes opened on the filter plate 300 are all located between the two sealing L-shaped plates 310.

[0056] Continue reading Figure 4 The outer side of the limiting L-shaped plate 210 and the sealing L-shaped plate 310 refers to the side away from the interior of the housing 200. After the molten rubber falls from the pyrolysis furnace 110 into the processing chamber 201, it will only stay between the two sealing L-shaped plates 310, and the limiting L-shaped plate 210 and the sealing L-shaped plate 310 will remain in contact. Therefore, the molten rubber will not cross the sealing L-shaped plate 310 and adhere to other structures outside it.

[0057] The drive assembly for reciprocating movement of the lead screw nut seat 321 along the y-axis includes... Figure 5 The ball screw 320 and the motor are located in the housing 200. The ball screw 320 is distributed along the y-axis and is rotatably connected to the side wall of the housing 200. The motor is located outside the housing 200 and its output shaft is coaxially connected to the ball screw 320. Several guide rods 322 are distributed parallel to each other on both sides of the ball screw 320. Each guide rod 322 is fixedly connected to the inner side wall of the housing 200 and is slidably connected to the screw nut seat 321.

[0058] During implementation, the motor power is turned on, causing it to drive the ball screw 320 to rotate. The ball screw 320 converts the rotational torque into a driving force for the linear motion of the screw nut seat 321 through its external threads. As a result, the screw nut seat 321 drives the spreading seat 330 to reciprocate along the y-axis, thereby evenly spreading the molten rubber accumulated in the processing chamber 201 near the feed inlet 112 onto the top of the filter plate 300.

[0059] Based on the above explanation, the following will use... Figure 6 The principle of relative sliding between the limiting L-shaped plate 210 and the sealing L-shaped plate 310:

[0060] Several sliding rods 340 are fixedly connected to the bottom of the short support arm of the limiting L-shaped plate 210. The lower part of the sliding rods 340 passes through the short support arm of the sealing L-shaped plate 310 and is slidably connected to it.

[0061] A spring 350 is sleeved around the slide rod 340 between the short support arm of the limiting L-shaped plate 210 and the short support arm of the sealing L-shaped plate 310. The top of the spring 350 is fixedly connected to the short support arm of the limiting L-shaped plate 210, and the bottom of the spring 350 is fixedly connected to the sealing L-shaped plate 310.

[0062] When the paving seat 330, which reciprocates with the paving seat 330, encounters a metal wire stuck in the filter hole, the paving seat 330 presses down on the filter plate 300 to make it pass over the metal wire. During this period, the distance between the short arms of the limiting L-shaped plate 210 and the sealing L-shaped plate 310 widens, stretching the spring 350 to store elastic potential energy. After the paving seat 330 passes over the stuck metal wire, the filter plate 300 loses its downward pressure and resets under the restoring force of the spring 350. Since the above reset process is completed instantaneously, it helps to loosen the stuck metal wire from the filter hole.

[0063] And, as Figure 7 As shown, the paving base 330 is distributed along the x-axis, and guide slopes 331 are provided on both sides of the bottom of the paving base 330 that are far apart. The bottom of the suction block 332 has a collection groove 333 that is distributed along the x-axis. As the suction block 332 moves back and forth with the paving base 330, when the collection groove 333 moves above the metal wire, the suction force generated by the suction block 332 causes the metal wire to leave the surface of the filter plate 300 and be adsorbed and collected inside the collection groove 333. This prevents the metal wire from affecting the movement of the paving base 330, thereby improving the efficiency of molten rubber passing through the filter plate 300.

[0064] Please refer to the following: Figure 8 As shown in the figure, in some embodiments, the collecting trough 333 has second slots 335 at both ends that are far apart, and the paving base 330 has first slots 334 at both ends that are far apart. When the suction block 332 is inserted into the bottom of the paving base 330, the first slots 334 and the second slots 335 form a "U" shape, which facilitates the insertion of the "U" shaped locking block to fix the suction block 332 to the paving base 330. When the collecting trough 333 is full of metal wires, the suction block 332 can be removed from the bottom of the paving base 330 by removing the "U" shaped locking block, thereby facilitating the cleaning of the metal wires inside the collecting trough 333.

[0065] Because of the high viscosity of molten rubber, the inclined guide slope 331 can form a gentle flow channel, allowing the rubber to spread smoothly along the y-axis after contacting the guide slope 331. At the same time, the slope of the guide slope 331 can reduce the contact resistance between the paving block and the hot rubber when moving, and reduce the wear of the hot rubber containing impurities on the side wall of the paving seat 330.

[0066] When the paving base 330 moves, the inclined surface acts like a wedge. When it comes into contact with the metal wire stuck in the filter holes, the inclined surface guides the metal wire upwards or to the sides, preventing the right-angled edge from directly impacting the metal wire and causing it to get stuck. This allows the paving block to flow smoothly through the filter hole area. If the bottom sides of the paving base 330 were designed with right-angled edges, the impact on the stuck metal wire would easily cause the edge of the paving base 330 to deform due to concentrated force, and might even further squeeze the metal wire into the filter holes, or even puncture the filter plate 300. The inclined surface can disperse the impact force from the metal wire, protecting both the paving base 330 and the filter plate 300.

[0067] The working principle of refining and chemical equipment will be explained in more detail below:

[0068] First, pretreated vulcanized rubber powder is added to hopper 111. Upon reaching the pyrolysis furnace 110, the rubber powder is heated and melted, reacting with a reducing agent to obtain compounded rubber. The molten compounded rubber passes through inlet 112 into processing chamber 201. Under its own gravity, the molten rubber falls onto filter plate 300 and accumulates near the inlet 112.

[0069] Next, the motor drives the ball screw 320 to rotate. The ball screw 320 converts the rotational torque into the driving force for the linear motion of the screw nut seat 321 through its external threads. As a result, the screw nut seat 321 drives the spreading seat 330 to reciprocate along the y-axis, thereby evenly spreading the molten rubber gathered in the processing chamber 201 near the feed inlet 112 onto the top of the filter plate 300.

[0070] When the paving seat 330, which reciprocates with the paving seat 330, encounters a metal wire stuck in the filter hole, the paving seat 330 presses down on the filter plate 300 to make it pass over the metal wire. The distance between the short arms of the limiting L-shaped plate 210 and the sealing L-shaped plate 310 widens, stretching the spring 350 to store elastic potential energy. After the paving seat 330 passes over the stuck metal wire, the filter plate 300 loses its downward pressure and resets under the restoring force of the spring 350, loosening the stuck metal wire from the filter hole.

[0071] When the collecting trough 333 moves above the metal wire, the suction force generated by the suction block 332 causes the metal wire to leave the surface of the filter plate 300 and be adsorbed and collected inside the collecting trough 333, so that the metal wire no longer affects the movement of the paving seat 330, thereby improving the efficiency of molten rubber passing through the filter plate 300.

[0072] The final discharge from outlet 203 is qualified compounded rubber that can be used to remanufacture rubber products.

[0073] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated refining equipment for vulcanized rubber molding blanks, comprising a pyrolysis furnace (110) disposed within a frame (100) for heating and melting waste rubber, wherein a hopper (111) is provided at the top of the pyrolysis furnace (110), a shell (200) is disposed below the pyrolysis furnace (110), and a feed inlet (112) is provided between the pyrolysis furnace (110) and the shell (200) for connecting the two, characterized in that: The housing (200) is provided with a filter plate (300) for intercepting metal wires in molten rubber. The filter plate (300) slides along the z-axis inside the housing (200). The housing (200) has a lead screw nut seat (321) that reciprocates along the y-axis above the filter plate (300). The lead screw nut seat (321) is driven by a drive assembly. A suction block (332) is snapped into the bottom of the lead screw nut seat (321). A paving seat (330) is fixedly connected to the bottom of the lead screw nut seat (321). When the metal wire gets stuck in the filter hole of the filter plate (300) and obstructs the movement of the screw nut seat (321), the screw nut seat (321) drives the filter plate (300) to slide down and pass over the top of the metal wire. After the spreading seat (330) passes over the stuck metal wire, the filter plate (300) loses downward pressure and resets under the action of the restoring force of the spring (350), and loosens the stuck metal wire from the filter hole. Then the suction block (332) attracts the metal wire and moves it away from the filter plate (300).

2. The automated refining equipment for vulcanized rubber molding blanks according to claim 1, characterized in that: Insulation covers (220) are fixedly installed on the two mutually distant sides of the top of the shell (200). A pair of limiting L-shaped plates (210) are fixedly connected between the two mutually distant inner sidewalls of the shell (200). The two limiting L-shaped plates (210) are symmetrically spaced about the y-axis.

3. The automated refining equipment for vulcanized rubber molding blanks according to claim 2, characterized in that: The filter plate (300) divides the interior of the housing (200) into a processing chamber (201) and a finished product chamber (202). The processing chamber (201) is located at the upper part of the finished product chamber (202). The bottom side of the finished product chamber (202) is provided with an outlet (203) for discharging the filtered molten rubber.

4. The automated refining equipment for vulcanized rubber molding blanks according to claim 2, characterized in that: A pair of sealing L-shaped plates (310) are fixedly connected to the top of the filter plate (300). The two sealing L-shaped plates (310) are symmetrically arranged on the outside of the limiting L-shaped plate (210). The sealing L-shaped plates (310) slide against the outside of the corresponding limiting L-shaped plates (210).

5. The automated refining equipment for vulcanized rubber molding blanks according to claim 4, characterized in that: The short arms of the limiting L-shaped plate (210) and the sealing L-shaped plate (310) are both oriented away from the inside of the housing (200), and the filter holes opened on the filter plate (300) are all located between the two sealing L-shaped plates (310).

6. The automated refining equipment for vulcanized rubber molding blanks according to claim 1, characterized in that: The drive assembly for reciprocating the screw nut seat (321) along the y-axis includes a ball screw (320) and a motor. The ball screw (320) is distributed along the y-axis and rotatably connected to the side wall of the housing (200). The motor is located outside the housing (200) and its output shaft is coaxially connected to the ball screw (320). Several guide rods (322) are distributed parallel to each other on both sides of the ball screw (320). Each guide rod (322) is fixedly connected to the inner side wall of the housing (200), and the guide rod (322) is slidably connected to the screw nut seat (321).

7. The automated refining equipment for vulcanized rubber molding blanks according to claim 4, characterized in that: The bottom of the short support arm of the limiting L-shaped plate (210) is fixedly connected to several sliding rods (340), and the lower part of the sliding rods (340) passes through the short support arm of the sealing L-shaped plate (310) and is slidably connected to it.

8. The automated refining equipment for vulcanized rubber preforms according to claim 7, characterized in that: A spring (350) is sleeved around the slide rod (340) between the short arm of the limiting L-shaped plate (210) and the short arm of the sealing L-shaped plate (310). The top of the spring (350) is fixedly connected to the short arm of the limiting L-shaped plate (210), and the bottom of the spring (350) is fixedly connected to the sealing L-shaped plate (310).

9. The automated refining equipment for vulcanized rubber molding blanks according to claim 1, characterized in that: The paving base (330) is distributed along the x-axis. Guide slopes (331) are provided on both sides of the bottom of the paving base (330) that are far apart. The bottom of the suction block (332) is provided with a collection groove (333) that is upward. The collection groove (333) is distributed along the x-axis.

10. The automated refining equipment for vulcanized rubber molding blanks according to claim 9, characterized in that: The collection trough (333) has a second slot (335) at both ends that are far apart, and the paving seat (330) has a first slot (334) at both ends that are far apart. When the attraction block (332) is inserted into the bottom of the paving seat (330), the first slot (334) and the second slot (335) form a U-shaped structure so that the attraction block (332) can be inserted into the U-shaped card to fix the paving seat (330).

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